Agenda packet — Cathedral City City Council, September 11, 2024 (part 4 of 5)

Methodology
Literature Review
Prior to conducting the field investigation, a literature review and records search was conducted for specialstatus biological resources potentially occurring on or within the vicinity of the project site. Previously recorded occurrences of special-status plant and wildlife species and their proximity to the project site were determined through a query of the CDFW’s CNDDB Rarefind 5, the California Native Plant Society’s (CNPS) Electronic Inventory of Rare and Endangered Vascular Plants of California, Calflora Database, compendia of special-status species published by CDFW, and the United States Fish and Wildlife Service (USFWS) species listings.

Literature detailing biological resources previously observed in the vicinity of the project site and historical land uses were reviewed to understand the extent of disturbances to the habitats on-site. Standard field guides and texts on special-status and non-special-status biological resources were reviewed for habitat requirements, as well as the following resources:
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CDFW 2012 Staff Report on Burrowing Owl Mitigation;
Coachella Valley Multiple Species Habitat Conservation Plan; Google Earth Pro historic aerial imagery (1994-2021);
United States Department of Agriculture (USDA) Natural Resource Conservation Service (NRCS), Soil Survey2; and
• USFWS Critical Habitat designations for Threatened and Endangered Species.

The literature review provided a baseline from which to inventory the biological resources potentially occurring on the project site. Additional recorded occurrences of these species found on or near the project site were derived from database queries. The CNDDB ArcGIS database was used, in conjunction with ArcGIS software, to locate the nearest occurrence and determine the distance from the project site.

Field Investigation
ELMT biologist Jacob H. Lloyd Davies inventoried and evaluated the extent and conditions of the plant communities found within the boundaries of the project site and a 200-foot buffer on February 9, 2023.

Plant communities identified on aerial photographs during the literature review were verified by walking meandering transects through the plant communities and along boundaries between plant communities. The plant communities were evaluated for their potential to support special-status plant and wildlife species. In addition, field staff identified any natural corridors and linkages that may support the movement of wildlife through the area. Special attention was given to special-status habitats and/or undeveloped areas, which have a higher potential to support special-status plant and wildlife species.

All plant and wildlife species observed, as well as dominant plant species within each plant community, were recorded. Wildlife detections were made through observation of scat, trails, tracks, burrows, nests, and/or visual and aural observation. In addition, site characteristics such as soil condition, topography, 2 A soil series is defined as a group of soils with similar profiles developed from similar parent materials under comparable climatic and vegetation conditions. These profiles include major horizons with similar thickness, arrangement, and other important characteristics, which may promote favorable conditions for certain biological resources.

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hydrology, anthropogenic disturbances, indicator species, condition of on-site plant communities, and presence of potential jurisdictional drainage and/or wetland features were noted.

Soil Series Assessment
On-site and adjoining soils were researched prior to the field visit using the USDA NRCS Soil Survey for Riverside County, California. In addition, a review of the local geological conditions and historical aerial photographs was conducted to assess the ecological changes the project site has undergone.

Plant Communities
Plant communities were mapped using 7.5-minute USGS topographic base maps and aerial photography.

The plant communities were delineated on an aerial photograph, classified in accordance with those described in the MSHCP, and then digitized into GIS Arcview. The Arcview application was used to compute the area of each plant community in acres.

Plants
Common plant species observed during the field survey were identified by visual characteristics and morphology in the field and recorded in a field notebook. Unusual and less-familiar plants were photographed in the field and identified in the laboratory using taxonomic guides. Taxonomic nomenclature used in this study follows the 2012 Jepson Manual (Hickman 2012). In this report, scientific names are provided immediately following common names of plant species (first reference only).

Wildlife
Wildlife species detected during field surveys by sight, calls, tracks, scat, or other sign were recorded during surveys in a field notebook. Field guides were used to assist with identification of wildlife species during the survey included The Sibley Field Guide to the Birds of Western North America (Sibley 2003), A Field Guide to Western Reptiles and Amphibians (Stebbins 2003), and A Field Guide to Mammals of North America (Reid 2006). Although common names of wildlife species are fairly well standardized, scientific names are provided immediately following common names in this report (first reference only).

Jurisdictional Drainages and Wetlands
Aerial photography was reviewed prior to conducting a field investigation in order to locate and inspect any potential natural drainage features, ponded areas, or water bodies that may fall under the jurisdiction of the United States Army Corps of Engineers (Corps), Regional Water Quality Control Board (Regional Board), or CDFW. In general, surface drainage features indicated as blue-line streams on USGS maps that are observed or expected to exhibit evidence of flow are considered potential riparian/riverine habitat and are also subject to state and federal regulatory jurisdiction. In addition, ELMT reviewed jurisdictional waters information through examining historical aerial photographs to gain an understanding of the impact of land-use on natural drainage patterns in the area. The USFWS National Wetland Inventory (NWI) and Environmental Protection Agency (EPA) Water Program “My Waters” data layers were also reviewed to determine whether any hydrologic features and wetland areas have been documented on or within the vicinity of the project site.

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Topography and Soils
The project site is located at an approximate elevation of 363 to 371 feet above mean sea level. On-site topography is generally flat with no significant topographical variability. Based on the NRCS USDA Web Soil Survey, the project site is underlain by Myoma fine sand (0 to 5 percent slopes). Refer to Exhibit 4, Soils, in Attachment A. Soils on-site have been disturbed in recent decades from staging and storage activities associated with adjacent construction and surrounding development.

Existing Site Condition
The project site occurs in an area that has undergone a transition from natural plant communities to urbanization in the form of sprawling residential developments with associated commercial and industrial developments intermixed. Land in the vicinity of the project site predominantly supports residential development with scattered commercial and institutional development, in addition to remaining swathes of vacant, undeveloped land. The site is bounded to the north by the partially developed planned extension of Rosemount Road with vacant, undeveloped land beyond; to the east by residential development; to the south by commercial and residential development; and to the west by Date Palm Drive with commercial development and vacant, undeveloped land beyond. The site itself primarily supports undeveloped land with some development occurring within existing and planned roads.

Vegetation
The project site supports one (1) natural plant community: creosote bush scrub. In addition, the site supports two (2) land cover types that would be classified as disturbed and developed. Refer to Attachment C, Site Photographs, for representative site photographs.

The creosote bush scrub plant community supported on-site is generally dominated by creosote (Larrea tridentata) with uncommon, localized dominance of swathes of hoary saltbush (Atriplex canescens) where revegetation has occurred following vegetation clearing in recent decades. Other common species observed in this plant community include desert sand verbena (Abronia villosa), Saharan mustard (Brassica tournefortii), clavate fruited primrose (Chylismia claviformis), Palmer's coldenia (Tiquilia palmeri), dyebush (Psorothamnus emoryi), and Mediterranean grass (Schismus barbatus).

Disturbed land is present along site boundaries, within unpaved access roads, and in the southeast portion.

Due to regular disturbance, these areas are barren or minimally vegetated. Common species observed in the disturbed portions of the site include hoary saltbush, Saharan mustard, Palmer’s coldenia, Mediterranean grass, and Mexican palo verde (Parkinsonia aculeata).

Developed land is present along existing and planned paved roadways that traverse the middle portion of the site and the site’s southeast corner. These areas are generally barren and may support limited presence of especially hardy weedy/early successional species.

Wildlife
Plant communities provide foraging habitat, nesting/denning sites, and shelter from adverse weather or predation. This section provides a discussion of those wildlife species that were observed or are expected to occur within the project site. The discussion is to be used as a general reference and is limited by the season, time of day, and weather conditions in which the field survey was conducted. Wildlife detections were based on calls, songs, scat, tracks, burrows, and direct observation.

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Fish
No fish or hydrogeomorphic features (e.g., creeks, ponds, lakes, reservoirs) that would provide suitable habitat for fish were observed on or within the vicinity of the project site. Therefore, no fish are expected to occur and are presumed absent from the site.

Amphibians
No amphibians or hydrogeomorphic features that would provide suitable habitat for amphibian species were observed on or within the vicinity of the project site. Therefore, no amphibians are expected to occur and are presumed absent from the site.

Reptiles
The project site provides limited foraging and cover habitat for local reptilian species adapted to routine human disturbance. No reptiles were observed during the field investigation. Common reptilian species that could be expected to occur on-site include desert iguana (Dipsosaurus dorsalis), desert spiny lizard (Sceloporus magister), and western side-blotched lizard (Uta stansburiana elegans).

Birds
The project site and surrounding area provide suitable foraging and cover habitat for local avian species adapted to routine human disturbance. The only avian species observed during the field investigation were common raven (Corvus corax) and Costa’s hummingbird (Calypte costae). Other common avian species that could be expected to occur on-site include rock pigeon (Columba liva), house sparrow (Haemorhous mexicanus), mourning dove (Zenaida macroura), great-tailed grackle (Quiscalus mexicanus), and northern mockingbird (Mimus polyglottos).

Mammals
The project site provides limited foraging and denning habitat for local mammalian species adapted to human disturbance. However, most mammal species are nocturnal and are difficult to observe during a diurnal field visit. The only mammalian species detected during the field investigation were kangaroo rat (Dipodomys sp.) and domestic dog (Canis familiaris). Multiple domestic dogs were observed off-leash in the southeast corner of the site during the field investigation, under the supervision of their owners. Several families were observed exiting the neighboring apartment complex with their dogs, and the abundance of scat indicates that the site frequently supports off-leash dogs.

Nesting Birds and Raptors
No active nests or birds displaying nesting behavior were observed on-site during the field survey, which was conducted outside of the breeding season. The project site surrounding area have the potential to provide suitable nesting habitat for year-round and seasonal avian residents, as well as migrating songbirds that could occur in the area that area adapted to urban environments. No raptors are expected to nest onsite due to lack of suitable nesting opportunities.

Nesting birds are protected pursuant to the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code (Sections 3503, 3503.5, 3511, and 3513 prohibit the take, possession, or destruction of birds, their nests or eggs). If construction occurs between February 1st and August 31st, a pre-construction Date Palm Drive and Rosemount Road Storage
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clearance survey for nesting birds should be conducted within three (3) days of the start of any vegetation removal or ground disturbing activities to ensure that no nesting birds will be disturbed during construction.

If an active avian nest is discovered during the pre-construction clearance survey, construction activities should stay outside of a no-disturbance buffer. The size of the no-disturbance buffer will be determined by the wildlife biologist and will depend on the level of noise and/or surrounding anthropogenic disturbances, line of sight between the nest and the construction activity, type and duration of construction activity, ambient noise, species habituation, and topographical barriers. These factors will be evaluated on a caseby-case basis when developing buffer distances. Limits of construction to avoid an active nest will be established in the field with flagging, fencing, or other appropriate barriers; and construction personnel will be instructed on the sensitivity of nest areas. A biological monitor should be present to delineate the boundaries of the buffer area and to monitor the active nest to ensure that nesting behavior is not adversely affected by the construction activity. Once the young have fledged and left the nest, or the nest otherwise becomes inactive under natural conditions, construction activities within the buffer area can occur.

Migratory Corridors and Linkages
Habitat linkages provide connections between larger habitat areas that are separated by development.

Wildlife corridors are similar to linkages but provide specific opportunities for animals to disperse or migrate between areas. A corridor can be defined as a linear landscape feature of sufficient width to allow animal movement between two comparatively undisturbed habitat fragments. Adequate cover is essential for a corridor to function as a wildlife movement area. It is possible for a habitat corridor to be adequate for one species yet still inadequate for others. Wildlife corridors are features that allow for the dispersal, seasonal migration, breeding, and foraging of a variety of wildlife species. Additionally, open space can provide a buffer against both human disturbance and natural fluctuations in resources.

The project site has not been identified as occurring in a wildlife corridor or linkage. The nearest open space to the site as mapped by the CVMSHCP is the Willow Hole Conservation Area, which occurs approximately 1.77 miles to the northeast. In addition, there are no riparian corridors, creeks, or useful patches of steppingstone habitat (natural areas) within or connecting the site to a recognized wildlife corridor or linkage. As such, implementation of the proposed project is not expected to impact wildlife movement opportunities. Therefore, impacts to wildlife corridors or linkages are not expected to occur.

Jurisdictional Areas
There are three key agencies that regulate activities within inland streams, wetlands, and riparian areas in California. The Corps Regulatory Branch regulates discharge of dredge or fill materials into “waters of the United States” pursuant to Section 404 of the Clean Water Act (CWA) and Section 10 of the Rivers and Harbors Act. Of the State agencies, the CDFW regulates alterations to streambed and bank under Fish and Wildlife Code Sections 1600 et seq., and the Regional Board regulates discharges into surface waters pursuant to Section 401 of the CWA and the California Porter-Cologne Water Quality Control Act.

No jurisdictional drainage and/or wetland features were observed on or near the project site during the field investigation. Further, no blueline streams have been recorded on the project site. Therefore, development of the project will not result in impacts to Corps, Regional Board, or CDFW jurisdiction and regulatory approvals will not be required.

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Special-Status Biological Resources
The CNDDB was queried for reported locations of special-status plant and wildlife species as well as natural communities of special concern in the Cathedral City USGS 7.5-minute quadrangle. This singular quadrangle was used due to the proximity of the project site to quadrangle boundaries, on-site conditions, and site isolation. A search of published records within this quadrangle was conducted using the CNDDB Rarefind 5 online software and the CDFW BIOS database and the CNPS Inventory of Rare and Endangered Plants of California that supplied information regarding the distribution and habitats of vascular plants in the vicinity of the project site. The habitat assessment evaluated the conditions of the habitat(s) within the boundaries of the project site to determine if the existing plant communities, at the time of the survey, have the potential to provide suitable habitat(s) for special-status plant and wildlife species.

The literature search identified thirteen (13) special-status plant species, seventeen (17) special-status wildlife species, and one (1) special-status plant community were identified as having potential to occur within the Cathedral City quadrangle. Special-status plant and wildlife species were evaluated for their potential to occur within the project site based on habitat requirements, availability and quality of suitable habitat, and known distributions. Species determined to have the potential to occur within the general vicinity are presented in Table D-1: Potentially Occurring Special-Status Biological Resources, provided in Attachment D. Refer to Table D-1 for a determination regarding the potential occurrence of specialstatus plant and wildlife species within the project site.

Special-Status Plants
According to the CNDDB and CNPS, thirteen (13) special-status plant species have been recorded in the Cathedral City quadrangle (refer to Attachment D). No special-status plants were observed on the project site during the field investigation. Based on habitat requirements for specific species, the availability and quality of on-site habitats, and isolation of the site, it was determined that the project site has a low potential to support chaparral sand-verbena (Abronia villosa var. aurita), Coachella Valley milk-vetch (Astragalus lentiginosus var. coachellae), pointed dodder (Cuscuta californica var. apiculata), Arizona spurge (Euphorbia arizonica), flat-seeded spurge (Euphorbia platysperma), ribbed cryptantha (Johnstonella costata), and winged cryptantha (Johnstonella holoptera). It was further determined that the remaining special-status wildlife species known to occur in the vicinity of the site do not have potential to occur and are presumed to be absent.

Of the aforementioned special-status plant species, Coachella Valley milk-vetch is federally listed as endangered and is listed as a covered species under the CVMSHCP. None of the other species are federally or state listed as endangered or threatened. Due to listing status, the potential occurrence of Coachella Valley milk-vetch is discussed in further detail below.

Coachella Valley Milk-Vetch
Coachella Valley milk-vetch can be either an annual or perennial herb that blooms between February and May. It is federally listed as endangered and is designated by the CNPS with the Rare Plant Rank 1B.2, indicating that is rare, threatened, or endangered in California and elsewhere, and is considered fairly threatened in California, with 20-80% of its known occurrences threatened. It is covered under the MSHCP.

It is endemic to California and is only known from Riverside County. It occurs in sandy soils within desert dunes and Sonoran desert scrub, where it typically grows at elevations between 130 and 2,150 feet.

Coachella Valley milk-vetch is known to occur in many locations throughout the Coachella Valley.

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Coachella Valley milk-vetch was not observed during the field investigation. The creosote bush scrub supported by the project site provides suitable habitat for this species. However, much of the site has been impacted by historic and ongoing disturbances and the site and adjacent undeveloped land are isolated from known occupied areas by surrounding development. Therefore, Coachella Valley milk-vetch was determined to have a low potential to occur on-site. Since Coachella Valley milk-vetch is a covered species under the CVMSHCP, no further surveys or additional mitigation measures will be required for impacts to this species, if present.

Special-Status Wildlife
According to the CNDDB, seventeen (17) special-status wildlife species have been reported in the Cathedral City quadrangle (refer to Attachment D). The only special-status wildlife species observed during the field investigation was Costa’s hummingbird, which was not listed within the Cathedral City quadrangle by the CNDDB. The project site and surrounding area have been impacted by development and associated staging and storage activities in recent decades and the site and limited adjacent open space are thoroughly isolated from natural open space. However, the creosote bush scrub supported by the site continues to provide limited habitat for some species. Based on habitat requirements for specific species and the availability and quality of on-site habitats, it was determined that the project site has a low potential to support prairie falcon (Falco mexicanus), loggerhead shrike (Lanius ludovicianus), and Coachella giant sand treader cricket (Macrobaenetes valgum). It was further determined that all the other special-status wildlife species known to occur in the vicinity of the site do not have potential to occur and are presumed to be absent.

None of the aforementioned special-status wildlife species are federally or state listed as endangered or threatened and Costa’s hummingbird and Coachella giant sand treader cricket are covered under the CVMSHCP. Prairie falcon is only expected to occur on-site during foraging, as no suitable nesting opportunities for prairie falcon are present within or near the project site. Limited nesting habitat for Costa’s hummingbird and loggerhead shrike are present.

In order to ensure impacts to special-status avian species do not occur from implementation of the proposed project, a pre-construction nesting bird clearance survey shall be conducted prior to ground disturbance.

With implementation of the pre-construction nesting bird clearance survey, impacts to special-status avian species will be less than significant and no mitigation will be required.

Due to listing status, the potential occurrence of Coachella giant sand treader cricket is discussed in further detail below. Additionally, based on regional significance, the potential occurrence of burrowing owl is discussed in further detail below.

Coachella Giant Sand Treader Cricket
The Coachella giant sand treader cricket has no state or federal designation but is covered under the CVMSHCP. Its known range extends through the western Coachella Valley to approximately two miles west of the City of Indio. This species is dependent on active dunes and ephemeral sand fields in the western Coachella Valley. It is strongly correlated with windblown habitats dominated by creosote bush, burrobush (Ambrosia dumosa), honey mesquite (Prosopis glandulosa), Mormon tea (Ephedra spp.), desert willow (Chilopsis linearis), and sandpaper bush (Mortonia scabrella). Stabilized sandy environments are avoided.

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Coachella giant sand treader cricket was not observed during the field investigation. The creosote bush scrub plant community supported by the project site provides suitable habitat for this species. However, much of the site has been impacted by historic and ongoing disturbances and the site and adjacent undeveloped land are isolated from known occupied areas by surrounding development. Therefore, Coachella giant sand treader cricket was determined to have a low potential to occur on-site. Since Coachella giant sand treader cricket is a covered species under the CVMSHCP, no further surveys or additional mitigation measures will be required for impacts to this species, if present.

Burrowing Owl
he burrowing owl is currently listed as a California Species of Special Concern. It is a grassland specialist distributed throughout western North America where it occupies open areas with short vegetation and bare ground within shrub, desert, and grassland environments. Burrowing owls use a wide variety of arid and semi-arid environments with well-drained, level to gently-sloping areas characterized by sparse vegetation and bare ground (Haug and Didiuk 1993; Dechant et al. 1999). Burrowing owls are dependent upon the presence of burrowing mammals (such as ground squirrels) whose burrows are used for roosting and nesting (Haug and Didiuk 1993). The presence or absence of colonial mammal burrows is often a major factor that limits the presence or absence of burrowing owls. Where mammal burrows are scarce, burrowing owls have been found occupying man-made cavities, such as buried and non-functioning drain pipes, stand-pipes, and dry culverts. Burrowing mammals may burrow beneath rocks and debris or large, heavy objects such as abandoned cars, concrete blocks, or concrete pads. They also require open vegetation allowing line-of-sight observation of the surrounding habitat to forage as well as watch for predators.

Despite a systematic search of the project site, no burrowing owls or sign (i.e., pellets, feathers, castings, or whitewash) were observed during the field investigation. Several small mammal burrows that have the potential to provide suitable burrowing owl nesting habitat (>4 inches in diameter) were observed within the boundaries of the site. Based on this information, and as a result of current and historic on-site disturbances, and surrounding development, it was determined that burrowing owls do not have potential to occur, and no focused surveys are recommended.

Special-Status Plant Communities
The CNDDB lists one (1) special-status plant community as being identified within the Cathedral City quadrangle: Desert Fan Palm Oasis Woodland. Based on the results of the field investigation, no specialstatus plant communities were observed on-site. Therefore, no special-status plant communities will be impacted by project implementation.

Critical Habitat
Under the federal Endangered Species Act, “Critical Habitat” is designated at the time of listing of a species or within one year of listing. Critical Habitat refers to specific areas within the geographical range of a species at the time it is listed that include the physical or biological features that are essential to the survival and eventual recovery of that species. Maintenance of these physical and biological features requires special management considerations or protection, regardless of whether individuals or the species are present or not. All federal agencies are required to consult with the United States Fish and Wildlife Service (USFWS) regarding activities they authorize, fund, or permit which may affect a federally listed species or its designated Critical Habitat. The purpose of the consultation is to ensure that projects will not jeopardize the continued existence of the listed species or adversely modify or destroy its designated Critical Habitat.

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The designation of Critical Habitat does not affect private landowners, unless a project they are proposing is on federal lands, uses federal funds, or requires federal authorization or permits (e.g., funding from the Federal Highways Administration or a CWA Permit from the Corps). If a there is a federal nexus, then the federal agency that is responsible for providing the funding or permit would consult with the USFWS.

The project site is not located with federally designated Critical Habitat (refer to Exhibit 6, Critical Habitat, in Attachment A). The nearest designated Critical Habitat to the site is located approximately 2.3 miles to the southwest for Casey’s June beetle (Dinacoma caseyi). Therefore, the loss or adverse modification of Critical Habitat will not occur as a result of the proposed project and consultation with the USFWS will not be required for implementation of the proposed project.

Coachella Valley MSHCP
The proposed project was reviewed to determine consistency with the CVMSHCP. Geographic Information System (GIS) software was utilized to map the project site in relation to the CVMSHCP including conservation areas, corridors and linkages, and sand transport areas. The CVMSHCP requires that local permittees, such as the City of Cathedral City, comply with various protective measures for covered species, communities, essential ecological processes, and biological corridors. In addition, certain projects may be subject to local development mitigation fees, a Joint Project Review Process, or other conservation or implementation measures.

The project site is located within the boundaries of the CVMSHCP Area, but is not located within any Conservation Areas, Preserves, Cores, or Linkages (refer to Exhibit 7, CVMSHCP Conservation Areas in Attachment A). The proposed project is not listed as a planned “Covered Activity” under the published CVMSHCP, but is still considered to be a current Covered Activity pursuant to Section 7.1 of the CVMSHCP. According to Section 7.1 of the CVMSHCP, take authorization will be provided for certain activities that take place outside of Conservation Areas including “new projects approved pursuant to county and city general plans, transportation improvement plans for roads in addition to those addressed in Section 7.2, master drainage plans, capital improvement plans, water and waste management plans, the County’s adopted Trails Master Plan, and other plans adopted by the Permittees.” As a Covered Activity located outside designated conservation areas, construction of the proposed project is expected to be consistent with the applicable avoidance, minimization, and mitigation measures described in Section 4.4 of the CVMSHCP. Since the proposed project is considered a Covered Activity under Section

7.1 of the CVMSHCP, no further avoidance, minimization, and mitigation measures are required, and the project is in compliance with the CVMSHCP.

The CVMSHCP identifies modeled habitat for Coachella Valley milk-vetch, Palm Springs pocket mouse (Perognathus longimembris bangsi), fat-tailed horned lizard (Phrynosoma mcallii), Le Conte’s thrasher (Toxostoma lecontei), Coachella Valley fringe-toed lizard (Uma inornata), and Coachella Valley roundtailed ground squirrel (Xerospermophilus tereticaudus chlorus) as occurring within the project site. Based on the results of the field investigation, the undeveloped portions of the project site support creosote bush scrub and disturbed land that has been subjected to a variety of anthropogenic disturbances. These disturbances have reduced, if not eliminated, the ability of the project site to provide suitable habitat for the majority of CVMSHCP Covered species. Due to the location of the project site and quality of onsite habitat, no impacts to CVMSHCP Covered Species are expected to occur from implementation of the proposed project.

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Conclusion
Based on the literature review and field survey, and existing site conditions discussed in this report, implementation of the project will have no significant impacts on federally or State listed species known to occur in the general vicinity of the project site. Additionally, the project will have no effect on designated Critical Habitat or regional wildlife corridors/linkage because none exists within the area. No jurisdictional drainage and/or wetland features were observed on the project site during the field investigation. No further surveys are recommended. With completion of the recommendations provided below, no impacts to yearround, seasonal, or special-status avian residents or special-status species will occur from implementation of the proposed project.

As a Covered Activity located outside designated conservation areas, construction of the proposed project is expected to implement the applicable regulatory complinace measures described in Section 4.4 of the CVMSHCP. With implementation of these measures, and payment of the CVMSHCP mitigaiton fee, the proposed project would be fully consistent with the biological goals and objectives of the CVMSHCP.

Impact Analysis
The discussion below provides a summary of survey results; avoidance and minimization efforts; direct, indirect, and cumulative project impacts; and compensatory mitigation measures for each biological resource area required to be analyzed according to CEQA, based on Appendix G (Environmental Checklist Form) of the CEQA Guidelines:

CEQA Threshold: Would the proposed Project have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or the U.S.

Fish and Wildlife Service?
Special-Status Plant Species
No special-status plants were observed on the project site during the field investigation. Based on habitat requirements for specific species, the availability and quality of on-site habitats, and isolation of the site, it was determined that the project site has a low potential to support chaparral sand-verbena, Coachella Valley milk-vetch, pointed dodder, Arizona spurge, flat-seeded spurge, ribbed cryptantha, and winged cryptantha (refer to Attachment D). It was further determined that the remaining special-status wildlife species known to occur in the vicinity of the site do not have potential to occur and are presumed to be absent.

Of the aforementioned special-status plant species, Coachella Valley milk-vetch is federally listed as endangered and is listed as a covered species under the CVMSHCP. None of the other species are federally or state listed as endangered or threatened. No impacts to special-status plant species are expected to occur from project implementation, as long as the project is consistent with the CVMSHCP.

Special-Status Wildlife Species
The only special-status wildlife species observed during the field investigation was Costa’s hummingbird.

Based on habitat requirements for specific species and the availability and quality of on-site habitats, it was determined that the project site has a low potential to support prairie falcon, loggerhead shrike, and Coachella giant sand treader cricket (refer to Attachment D). It was further determined that all the other Date Palm Drive and Rosemount Road Storage
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special-status wildlife species known to occur in the vicinity of the site do not have potential to occur and are presumed to be absent.

With implementation of the pre-construction nesting bird clearance survey, impacts to special-status avian species will be less than significant.

Recommended mitigation measure:

1. Nesting birds are protected pursuant to the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code (Sections 3503, 3503.3, 3511, and 3513 of the California Fish and Game Code prohibit the take, possession, or destruction of birds, their nests or eggs). In order to protect migratory bird species, a nesting bird clearance survey should be conducted prior to any ground disturbance or vegetation removal activities that may disrupt the birds during the nesting season.

Consequently, if avian nesting behaviors are disrupted, such as nest abandonment and/or loss of reproductive effort, it is considered “take” and is potentially punishable by fines and/or imprisonment.

If construction occurs between February 1st and August 31st, a pre-construction clearance survey for nesting birds should be conducted within three (3) days of the start of any vegetation removal or ground disturbing activities to ensure that no nesting birds will be disturbed during construction.

The biologist conducting the clearance survey should document a negative survey with a brief letter report indicating that no impacts to active avian nests will occur. If an active avian nest is discovered during the pre-construction clearance survey, construction activities should stay outside of a no-disturbance buffer. The size of the no-disturbance buffer will be determined by the wildlife biologist and will depend on the level of noise and/or surrounding anthropogenic disturbances, line of sight between the nest and the construction activity, type and duration of construction activity, ambient noise, species habituation, and topographical barriers. These factors will be evaluated on a case-by-case basis when developing buffer distances. Limits of construction to avoid an active nest will be established in the field with flagging, fencing, or other appropriate barriers; and construction personnel will be instructed on the sensitivity of nest areas. A biological monitor should be present to delineate the boundaries of the buffer area and to monitor the active nest to ensure that nesting behavior is not adversely affected by the construction activity. Once the young have fledged and left the nest, or the nest otherwise becomes inactive under natural conditions, construction activities within the buffer area can occur.

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Habitat Assessment and CVMSHCP Consistency Analysis
Mrach 7, 2024

Page 13 ends

CEQA Threshold: Would the proposed Project have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, and regulations or by the California Department of Fish and Game or US Fish and Wildlife Service? Riparian Habitat and Special-Status Natural Communities No jurisdictional drainage and/or wetland features were observed on or near the project site during the field investigation. Further, no blueline streams have been recorded on the project site. Therefore, development of the project will not result in impacts to Corps, Regional Board, or CDFW jurisdiction and regulatory approvals will not be required.

No sensitive habitats were identified within the Project site. Thus, no sensitive natural communities will be impacted from Project implementation.

CEQA Threshold: Would the proposed Project have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? Federally Protected Wetlands
No inundated areas, wetland features, or wetland plant species that would be considered wetlands as defined by Section 404 of the Clean Water Act occur within the proposed Project footprint. As a result, implementation of the proposed Project would not result in any impacts or have substantial adverse effect on federally protected wetlands.

CEQA Threshold: Would the proposed Project interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? Wildlife Corridors
The project site has not been identified as occurring in a wildlife corridor or linkage. The nearest open space to the site as mapped by the CVMSHCP is the Willow Hole Conservation Area, which occurs approximately 1.77 miles to the northeast. In addition, there are no riparian corridors, creeks, or useful patches of steppingstone habitat (natural areas) within or connecting the site to a recognized wildlife corridor or linkage. As such, implementation of the proposed project is not expected to impact wildlife movement opportunities. Therefore, impacts to wildlife corridors or linkages are not expected to occur.

CEQA Threshold: Would the proposed Project conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? Local Policies or Ordinances
There are no local policies or ordinances that pertain to the proposed project. Therefore, impacts to local polices or ordinances are not expected to occur from development of the proposed project, and mitigation is not required.

Date Palm Drive and Rosemount Road Storage
Habitat Assessment and CVMSHCP Consistency Analysis
Mrach 7, 2024

Page 14 ends

CEQA Threshold: Would the proposed Project conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state Habitat Conservation Plan?
Local, Regional, and State Plans
The project site is located within the boundaries of the CVMSHCP Area, but is not located within any Conservation Areas, Preserves, Cores, or Linkages. The proposed project is not listed as a planned “Covered Activity” under the published CVMSHCP, but is still considered to be a current Covered Activity pursuant to Section 7.1 of the CVMSHCP. As a Covered Activity located outside designated conservation areas, construction of the proposed project is expected to be consistent with the applicable avoidance, minimization, and mitigation measures described in Section 4.4 of the CVMSHCP. Since the proposed project is considered a Covered Activity under Section 7.1 of the CVMSHCP, no further avoidance, minimization, and mitigation measures are required, and the project is in compliance with the CVMSHCP.

Please do not hesitate to contact Tom McGill at (951) 285-6014 or [email protected] or Travis McGill at (909) 816-1646 or [email protected] should you have any questions regarding this proposal.

Sincerely,
Thomas J. McGill, Ph.D.

Managing Director
Travis J. McGill
Director
Attachments:

A. Project Exhibits
B. Site Plan
C. Site Photographs
D. Potentially Occurring Special-Status Biological Resources E. Regulations
Date Palm Drive and Rosemount Road Storage
Habitat Assessment and CVMSHCP Consistency Analysis
Attachment A
Project Exhibits

SAN BERNARD
^_

PROJECT

LOCATION
^_

PROJECT

LOCATION

RIVERSIDE

SAN DIEGO IMPERIAL

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 2.5 5 10 O Miles Regional Vicinity Source: World Street Map, Riverside County Exhibit 1
Legend
Proejct Site

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 1,000 2,000 4,000 O Feet Site Vicinity Source: USA Topographic Map, Riverside County Exhibit 2 Legend
Proejct Site

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 62.5 125 250 O Feet Project Site Source: ESRI Aerial Imagery, Riverside County Exhibit 3 Legend
Proejct Site
Myoma fine sand, 0 to 5% slopes (MaB)
MaB

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 62.5 125 250 O Feet Soils Source: ESRI Aerial Imagery, Soil Survey Geographic Database, Riverside County Exhibit 4 Legend
Proejct Site
Creosote Bush Scrub
Disturbed
Developed

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 62.5 125 250 O Feet Vegetation Source: ESRI Aerial Imagery, Riverside County Exhibit 5 Legend
Proejct Site
Casey's June Beetle
Coachella Valley fringe-toed lizard
Coachella Valley milk-vetch
Peninsular bighorn sheep

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS
DATE PALM DRIVE AND ROSEMONT ROAD 0 0.5 1 2
O Miles Critical Habitat
Source: ESRI Aerial Imagery, USFWS Critical Habitat, Riverside County Exhibit 6 Legend
Project Site
Edom Hill Conservation Area
Long Canyon Conservation Area
Santa Rosa and San Jacinto Mountains Conservation Area
Thousand Palms Conservation Area
Whitewater Floodplain Conservation Area
Willow Hole Conservation Area

HABITAT ASSESSMENT AND CVMSHCP CONSISTENCY ANALYSIS

DATE PALM DRIVE AND ROSEMONT ROAD
2 0 0.5 1
O Miles CVMSHCP Conservation Areas
Source: ESRI Aerial Imagery, CVMSHCP, Riverside County Exhibit 7 Attachment B
Site Plan
LANDSCAPE AREA - 24,554 SF TOTAL

PROPOSED SELF-STORAGE FACILITY
115,916 GROSS SF

PROPOSED RETAIL AREA
5,448 GROSS SF

PROPOSED ADA WALKWAY
25 TOTAL PARKING SPACES
COPYRIGHT2023: SULLIVAN GOULET

RESERVES IT COMMON AWCOPYRIGHTAND OTHERPROPERTYRIGHT
IN HESEPLANS. HESEPLANS ARENOTT BEREPRODUCED, CHANGED

ORCOPIED IN ANYFORM ORMANNERWHATSOEVER, NORARETHEYT

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EXPRESSED WRITEN PERMISSION AND CONSENTOF SULLIVAN GOULETTE WILSON, D.

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DATE PALM DRIVE
PROPOSED 2-STORY CLIMATE-CONTROLLED

SELF-STORAGE FACILITY
15'-078"
SB
57,958 SF FOOTPRINT
115,916 PROPOSED GROSS SF
PRINCIPAL:

QC BY:

P.M.:
322'-4" DRAWN BY:

AREA NOT IN PHASE I
STAIR

EXISTING BUILDING

CURB CUTS TERMINATE TO

PREVENT ACCESS TO

ADJACENT LOT
01 02 03 04 05 06 07 LOADING EXISTING BUILDING
16 17
18 19
20 21
08 09
10 11
12 13
14 15
132'-4"

UTILITY
ROOMS
1 04/04/23 ISSUEFOROWNERREVIEW
NO DATE ISSUEDESCRIPTION 22
23 24 RETAIL & OFFICE AREA
25 0 10' 30' 50' 100'
SCALE: 1" = 50'

MONUMENT SIGN

TWO-WAY TRAFFIC
PHASE I A0-01
SITE PLAN 1
NORTH
SCALE: 1" = 50'-0"
LANDSCAPE AREA - 44,112 SF TOTAL

PROPOSED SELF-STORAGE FACILITY
115,916 GROSS SF

PROPOSED RETAIL AREA
34,333 GROSS SF

PROPOSED ADA WALKWAY
125 TOTAL PARKING SPACES

CONCEPTUAL NEW FAST

FOOD FACILITY
5' LANDSCAPE BUFFER
AROUND POND RCEOSEPRYRVIEGSHITTS2C0O23
M
: MSUL
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E

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ORCOPIED IN ANYFORM ORMANNERWHATSOEVER, NORARETHEYT

BEASSIGNED ANYTHIRD PARTY, WITHOUTFIRSTOBTAINING HE

EXPRESSED WRITEN PERMISSION AND CONSENTOF SULLIVAN GOULETTE WILSON, D.

THESEPLANS. THESEPLANS ARENOTTO BEREPRODUCED, CHANGED
O
TO T
P T
95'-0" & LT

LOADING THEASNEODRRIAGWININAGL
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A
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EITDECATTAASSSIZUEMDEIFNFOERENTLY
30'-0" RESPONSIBILITYFORUSEOF INCORRECTSCALE.

CONCEPTUAL

NEW RETAIL
6,650 GROSS SF

ABOVE GROUND RETENTION POND
180' X 70' 123
122
121
120

CONTRACTORSHALLVERIFYALLEXISTING CONDITIONS PRIORTO

PROCEEDING WITHCONSTRUCTION AND NOTIFYARCHITECT
IMMEDIATELYOF ANYDISCREPANCIES ORCONFLICTS.
59'-721"

SB DATE PALM DRIVE
PROPOSED 2-STORY CLIMATE-CONTROLLED

SELF-STORAGE FACILITY
15'-078"
40'-0" SB
112 113
114 115 116 117 118 119 TRASH

ENCLOSURE
TYP
57,958 SF FOOTPRINT
115,916 PROPOSED GROSS SF
PRINCIPAL:

QC BY:

P.M.:
322'-4" DRAWN BY: 220'-0"
STAIR
111
110
109
108
107

CONCEPTUAL

NEW RETAIL
12,100 GROSS SF
83 82
81 80
79 78
26 27
28 29
30 31
32 33
34 35

EXISTING BUILDING
01 02 03 04 05 06 07 LOADING EXISTING BUILDING
16 17
18 19
20 21
08 09
10 11
12 13
14 15
65'-0"
125 124 95 94 132'-4"
106 105 104 103 102 1091897 10906 99 9392 9091 89 8878 86 85 84 UTILITY ROOMS
1 04/04/23 ISSUEFOROWNERREVIEW

OPTION FOR WALKWAY/ ISSUEDESCRIPTION

BUILDING SEPARATION

NO DATE

CONCEPTUAL

NEW RETAIL
5,138 GROSS SF
22 23
77 7675 7473 72 7170 6968 67 66 65 6463 612 6059 58 57 56 55 54 53 52 51 50 4948 474645 44434142 40 39 37 38 36 24 RETAIL & OFFICE AREA

MONUMENT
SIGN 25
0 10' 30' 50' 100'
SCALE: 1" = 50'

TWO-WAY TRAFFIC
PHASE II A0-02
SITE PLAN 1 SCALE: 1" = 50'-0"
NORTH
Attachment C
Site Photographs
Attachment C – Site Photographs
Photograph 1: From the northwest corner of the project site looking south along the western boundary.

Photograph 2: From the northwest corner of the project site looking east along the northern boundary.

Attachment C – Site Photographs
Photograph 3: From the northeast corner of the project site looking west along the northern boundary.

Photograph 4: From the northeast corner of the project site looking south along the eastern boundary.

Attachment C – Site Photographs
Photograph 5: From the southeast corner of the project site looking north along the eastern boundary.

Photograph 6: From the middle of the southern boundary of the project site looking north.

Attachment C – Site Photographs
Photograph 7: From the southwest corner of the project site looking east along the southern boundary.

Photograph 8: From the southwest corner of the project site looking north along the western boundary.

Attachment D
Potentially Occurring Special-Status Biological Resources Attachment D – Potentially Occurring Special-Status Biological Resources Table D-1: Potentially Occurring Special-Status Biological Resources Scientific Name
Common Name
Observed
On-site Status Habitat Potential to Occur

SPECIAL-STATUS WILDLIFE SPECIES
Presumed Absent
The project site provides
line-of-sight opportunities
favored by burrowing owls;
however, no suitable
burrows (>4 inches) were
observed. No burrowing
owls or sign were observed.

Primarily a grassland species, but it persists and even thrives in some landscapes highly altered by human activity. Occurs in open, annual or perennial grasslands, deserts, and scrublands characterized by low-growing vegetation. The overriding characteristics of suitable habitat appear to be burrows for roosting and nesting and relatively short vegetation with only sparse shrubs and taller vegetation.

Fed:

CA:

CVMSHCP:

None
SSC
Covered
Athene cunicularia
burrowing owl No
It can be found from the desert, through dense chaparral in the foothills (it avoids the mountains above around 4,000 feet), to warm inland mesas and valleys, all the way to the cool ocean shore. It is most commonly associated with heavy brush with large rocks or boulders. Dense chaparral in the foothills, cactus or boulder associated coastal sage scrub, oak and pine
woodlands, and desert slope scrub associations are known to carry populations of the northern red-diamond rattlesnake; however, chamise and red shank associations may offer better structural habitat for refuges and food resources for this species than other habitats.

All Dinacoma populations are associated with alluvial
sediments occurring in or contiguous with bases of desert alluvial fans, and the broad, gently sloping, depositional surfaces at the base of the Santa Rosa mountain ranges in the dry Coachella valley region. Most commonly associated with the Carsitas series soil.

Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Fed:

CA:

CVMSHCP:

None
SSC
Not Covered
Crotalus ruber
red-diamond rattlesnake No
No
Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Fed:

CA:

CVMSHCP:

END
None
Not Covered
Dinacoma caseyi
Casey's June beetle
Low Commonly occur in arid and semiarid shrubland and grassland community types. Also occasionally found in open parklands within coniferous forests. During the breeding season, they are found commonly in foothills and mountains which provide cliffs and escarpments suitable for nest sites.

There is suitable foraging
habitat present within and
adjacent to the project site.

No suitable nesting
Fed:

CA:

CVMSHCP:

None
WL
Not Covered
Falco mexicanus
prairie falcon No
No
opportunities are present.

Builds nests in clay-rich sandy slopes along water courses in the Mojave Desert. In California, it occurs from Into County south to Imperial County and east to the Nevada and Arizona borders.

Prefers areas with a high density of creosote and dune-restricted endemic plants.

Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Fed:

CA:

CVMSHCP:

None
None
Not Covered
Habropoda pallida
white-faced bee
Attachment D – Potentially Occurring Special-Status Biological Resources Scientific Name
Common Name
Observed
On-site Status Habitat Potential to Occur
Low
Fed:

CA:

CVMSHCP:

None
SSC
Not Covered
Often found in broken woodlands, shrublands, and other
habitats. Prefers open country with scattered perches for hunting and fairly dense brush for nesting.

Limited foraging and
nesting habitat are present
within and adjacent to the
project site.

Lanius ludovicianus
loggerhead shrike No
Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Fed:

CA:

CVMSHCP:

None
SSC
Not Covered
Lasiurus xanthinus
western yellow bat
Roosts in palm trees in foothill riparian, desert wash, and palm oasis habitats with access to water for foraging. No
No
Nocturnal and moisture sensitive insects. Emergence occurs with winter rains and appear at maximum densities in JanuaryFebruary. Can be detected via their characteristic delta-shaped burrow excavations.

Low Fed:

CA:

CVMSHCP:

None
None
Covered
Macrobaenetes valgum
Coachella giant sand treader cricket
There is suitable habitat
present within and adjacent
to the project site.

Preferred habitat is near mountainous terrain above the desert floor that is visually open, as well as steep and rocky. Most Mojave Desert mountain ranges satisfy these requirements well.

Surface water is another element that is considered important to population health. Found mainly in the Peninsular Ranges.

Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Fed:

CA:

CVMSHCP:

END
THR; FP
Covered
Ovis canadensis nelsoni pop. 2
Peninsular bighorn sheep DPS No
No
Presumed Absent
Limited habitat is present;
however, historic and
ongoing disturbance and
isolation of the site likely
preclude this species from
occurring.

Inhabits areas having flat to gently sloping topography, sparse to moderate vegetative cover, and loosely packed or sandy soils on slopes ranging from 0% to approximately 15%. Remaining habitat in the Coachella Valley and environs is about 142,000 acres.

Fed:

CA:

CVMSHCP:

None
SSC
Covered
Perognathus longimembris bangsi
Palm Springs pocket mouse
Presumed Absent
Limited habitat is present;
however, historic and
ongoing disturbance and
isolation of the site likely
preclude this species from
occurring.

Typical habitat is sandy desert hardpan or gravel flats with scattered sparse vegetation of low species diversity. Most common in areas with high density of harvester ants and fine windblown sand, but rarely occurs on dunes.

Fed:

CA:

CVMSHCP:

None
SSC
Covered
Phrynosoma mcallii
flat-tailed horned lizard No
No
Obligate resident of sage scrub habitats that are dominated by California sagebrush. This species generally occurs below 750 feet elevation in coastal regions and below 1,500 feet inland. It prefers habitat with more low-growing vegetation.

Presumed Absent Fed:

CA:

CVMSHCP:

THR
SSC
Not Covered
Polioptila californica californica
coastal California gnatcatcher
There is no suitable habitat
present within or adjacent to
the project site.

Attachment D – Potentially Occurring Special-Status Biological Resources Scientific Name
Common Name
Observed
On-site Status Habitat Potential to Occur
Nests over all of California except the Central Valley, the Mojave Desert region, and high altitudes and the eastern side of the Sierra Nevada. Winters along the Colorado River and in parts of Imperial and Riverside Counties. Nests in riparian areas dominated by willows, cottonwoods, sycamores, or alders or in mature chaparral. May also use oaks, conifers, and urban areas near stream courses.

Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

USFWS:

CDFW:

CVMSHCP:

None
SSC
Covered
Setophaga petechia
yellow warbler No
Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

Stenopelmatus cahuilaensis
[Ammopelmatus cahuiaensis]
Coachella Valley Jerusalem cricket
Fed:

CA:

CVMSHCP:

None
None
Covered
Restricted to desert dunes. No
No
An uncommon to rare, local resident in southern California deserts from southern Mono Co. south to the Mexican border, and in western and southern San Joaquin Valley. Occurs
primarily in open desert wash, desert scrub, alkali desert scrub, and desert succulent shrub habitats; also occurs in Joshua tree habitat with scattered shrubs.

Presumed Absent
Limited habitat is present
within and adjacent to the
project site; however, the
site is isolated from known
occupied areas.

Fed:

CA:

CVMSHCP:

None
SSC
Covered
Toxostoma lecontei
Le Conte's thrasher
Presumed Absent
Limited habitat is present;
however, historic and
ongoing disturbance and
isolation of the site likely
preclude this species from
occurring.

Sparsely-vegetated arid areas with fine wind-blown sand, including dunes, washes, and flats with sandy hummocks
formed around the bases of vegetation. Needs fine, loose sand for burrowing.

Fed:

CA:

CVMSHCP:

THR
END
Covered
Uma inornata
Coachella Valley fringe-toed lizard No
No
Presumed Absent
Limited habitat is present;
however, historic and
ongoing disturbance and
isolation of the site likely
preclude this species from
occurring.

Xerospermophilus tereticaudus
chlorus
Coachella Valley round-tailed ground
squirrel
Inhabits sandy arid regions of Lower Sonoran Life Zone. Its scrub and wash habitats include mesquite and creosote
dominated sand dunes, creosote bush scrub, palo verde and saltbush/alkali scrub.

Fed:

CA:

CVMSHCP:

None
SSC
Covered

SPECIAL-STATUS PLANT SPECIES
Fed:

CA:

CNPS:

CVMSHCP:

Fed:

CA:

CNPS:

CVMSHCP:

None
None
1B.1
Grows within chaparral, coastal scrub, and desert dunes habitats in areas of full sun and sandy soils. Found at elevations ranging from 245 to 5,249 feet. Blooming period is from January to Low
Abronia villosa var. aurita
chaparral sand-verbena
Limited habitat is present
within and adjacent to the
project site.

No
No
Not Covered September.

None
None
1B.1
Presumed Absent Occurs in lake margins in playas, meadows and seeps. Found at elevations ranging from 197 to 2,789 feet. Blooming period is from May to October.

Astragalus hornii var. hornii
Horn's milk-vetch
There is no suitable habitat
present within or adjacent to
Not Covered the project site.

Attachment D – Potentially Occurring Special-Status Biological Resources Scientific Name
Common Name
Observed
On-site Status Habitat Potential to Occur
Fed:

CA:

CNPS:

None
None

4.3 Low Astragalus lentiginosus var.
borreganus
Borrego milk-vetch
Grows in sandy soils within Mojavean desert scrub and Sonoran desert scrub. Found at elevations ranging from 98 to 1,050 feet in elevation. Blooming period is from February to May.

There is suitable habitat
present within or adjacent to
the project site.

No
CVMSHCP: Not Covered
Fed:

CA:

CNPS:

CVMSHCP:

Fed:

END
None
1B.2
Covered
None
None
3 Low Astragalus lentiginosus var.
coachellae
Coachella Valley milk-vetch
Preferred habitat includes desert dunes and sandy Sonoran desert scrub. Found at elevations ranging from 130 to 2,150 feet in elevation. Blooming period is from February to May.

Limited habitat is present
within and adjacent to the
project site.

No
No
No
No
No
No
No
No
Low Occurs in Mojavean desert scrub and Sonoran desert scrub habitats. Found at elevations ranging from 0 to 1640 feet.

Blooming period is from February to August.

Cuscuta californica var. apiculata
pointed dodder
CA: There is suitable habitat
present within or adjacent to
the project site.

CNPS:

CVMSHCP:

Fed:

Not Covered
None
None
2B.3
Not Covered
None
None
1B.2
Not Covered
Low Preferred habitat includes sandy, Sonoran desert scrub habitat.

Found at elevations ranging from 164 to 984 feet. Blooming period is from March to April.

Euphorbia arizonica
Arizona spurge
CA: There is suitable habitat
present within or adjacent to
the project site.

CNPS:

CVMSHCP:

Fed: Low Occurs within desert scrub and sandy Sonoran desert scrub habitats. Found at elevations ranging from 213 to 328 feet.

Blooming period is from February to September.

Euphorbia platysperma
flat-seeded spurge
CA: There is suitable habitat
present within or adjacent to
the project site.

CNPS:

CVMSHCP:

Fed: None
None

4.3 Preferred habitat includes desert dunes, Mojavean desert scrub, and Sonoran desert scrub habitats on sandy soil. Found at elevations ranging from 197 to 1,640 feet. Blooming period is Low
Johnstonella costata
ribbed cryptantha
CA: There is suitable habitat
present within or adjacent to
the project site.

CNPS:

CVMSHCP:

Fed:

Not Covered from February to May.

None
None

4.3 Low Found in Mojavean desert scrub and Sonoran desert scrub habitats. Found at elevations ranging from 328 to 5,545 feet.

Blooming period is from March to April.

Johnstonella holoptera
winged cryptantha
CA: There is suitable habitat
present within or adjacent to
the project site.

Presumed Absent
There is no suitable habitat
present within or adjacent to
the project site.

CNPS:

CVMSHCP:

Fed:

Not Covered
None
None

4.2 Found in sandy, rocky, washes, streambanks and desert valleys in association with Mojavean and Sonoran Desert scrub
habitats. Found at elevations ranging from 130 to 3,575 feet.

Lycium torreyi
Torrey’s box-thorn
CA:

CNPS:

CVMSHCP:

Fed:

CA:

CNPS:

CVMSHCP:

Not Covered Blooming period is from March to May.

None
None
2B.2
Occurs in coastal dunes, desert dunes, and Sonoran desert scrub habitats. Found at elevations ranging from 164 to 1,312 feet.

Blooming period is from March to May.

Nemacaulis denudata var. gracilis
slender cottonheads
Not Covered
Presumed Absent
The project site occurs
outside of the known
elevation range for this
species.

Fed:

CA:

CNPS:

None
None
2B.2
Found in chaparral and Sonoran desert scrub habitats within gravelly or rocky soil. Found at elevations ranging from 656 to 2,953 feet. Blooming period is from May to July.

Selaginella eremophila
desert spike-moss No
CVMSHCP: Not Covered
Attachment D – Potentially Occurring Special-Status Biological Resources Scientific Name
Common Name
Observed
On-site Status Habitat Potential to Occur
Presumed Absent
The project site occurs
outside of the known
elevation range for this
species.

Fed:

CA:

CNPS:

None
None
2B.1
Occurs in Sonoran desert scrub habitats. Found at elevations ranging from 591 to 984 feet. Blooming period is from January to December.

Stemodia durantifolia
purple stemodia No
CVMSHCP: Not Covered

CDFW SENSITIVE HABITATS
Rare plant community that is one of the most unusual biological resources located within the Coachella Valley. Found within canyons and along the San Andreas Fault Zone, where water occurs naturally. Generally characterized by open to dense groves of native desert fan palms, which are the most massive native palm in North America, growing more than 66 feet.

Desert Fan Palm Oasis Woodland CDFW Sensitive Habitat No Absent U.S. Fish and Wildlife Service
(Fed) - Federal
California Department of Fish and
Wildlife (CA) - California
California Native Plant Society (CNPS)
California Rare Plant Rank Threat Ranks
END – Federal Endangered
THR – Federal Threatened
END – California Endangered
THR – California Threatened
FP – California Fully Protected
SSC – California Species of Special Concern
WL – California Watch List
1B Plants Rare, Threatened, or Endangered in
California and Elsewhere
2B Plants Rare, Threatened, or Endangered in
California, but More Common Elsewhere
3 More Information Needed

0.1- Seriously threatened in California

0.2- Moderately threatened in California

0.3- Not very threatened in California
4 Plants of Limited Distribution – A Watch
List
Attachment E
Regulations
Attachment E – Regulations
Special status species are native species that have been afforded special legal or management protection because of concern for their continued existence. There are several categories of protection at both federal and state levels, depending on the magnitude of threat to continued existence and existing knowledge of population levels.

Federal Regulations
Endangered Species Act of 1973
Federally listed threatened and endangered species and their habitats are protected under provisions of the Federal Endangered Species Act (ESA). Section 9 of the ESA prohibits “take” of threatened or endangered species. “Take” under the ESA is defined as to “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any of the specifically enumerated conduct.” The presence of any federally threatened or endangered species that are in a project area generally imposes severe constraints on development, particularly if development would result in “take” of the species or its habitat. Under the regulations of the ESA, the United States Fish and Wildlife Service (USFWS) may authorize “take” when it is incidental to, but not the purpose of, an otherwise lawful act.

Critical Habitat is designated for the survival and recovery of species listed as threatened or endangered under the ESA. Critical Habitat includes those areas occupied by the species, in which are found physical and biological features that are essential to the conservation of an ESA listed species and which may require special management considerations or protection. Critical Habitat may also include unoccupied habitat if it is determined that the unoccupied habitat is essential for the conservation of the species.

Whenever federal agencies authorize, fund, or carry out actions that may adversely modify or destroy Critical Habitat, they must consult with USFWS under Section 7 of the ESA. The designation of Critical Habitat does not affect private landowners, unless a project they are proposing uses federal funds, or requires federal authorization or permits (e.g., funding from the Federal Highway Administration or a permit from the U.S. Army Corps of Engineers (Corps)).

If USFWS determines that Critical Habitat will be adversely modified or destroyed from a proposed action, the USFWS will develop reasonable and prudent alternatives in cooperation with the federal institution to ensure the purpose of the proposed action can be achieved without loss of Critical Habitat. If the action is not likely to adversely modify or destroy Critical Habitat, USFWS will include a statement in its biological opinion concerning any incidental take that may be authorized and specify terms and conditions to ensure the agency is in compliance with the opinion.

Migratory Bird Treaty Act
The Migratory Bird Treaty Act (MBTA) (16 U.S. Government Code [USC] 703) makes it unlawful to pursue, capture, kill, possess, or attempt to do the same to any migratory bird or part, nest, or egg of any such bird listed in wildlife protection treaties between the United States, Great Britain, Mexico, Japan, and the countries of the former Soviet Union, and authorizes the U.S. Secretary of the Interior to protect and regulate the taking of migratory birds. It establishes seasons and bag limits for hunted species and protects migratory birds, their occupied nests, and their eggs (16 USC 703; 50 CFR 10, 21).

Attachment E – Regulations
The MBTA covers the taking of any nests or eggs of migratory birds, except as allowed by permit pursuant to 50 CFR, Part 21. Disturbances causing nest abandonment and/or loss of reproductive effort (i.e., killing or abandonment of eggs or young) may also be considered “take.” This regulation seeks to protect migratory birds and active nests.

In 1972, the MBTA was amended to include protection for migratory birds of prey (e.g., raptors). Six families of raptors occurring in North America were included in the amendment: Accipitridae (kites, hawks, and eagles); Cathartidae (New World vultures); Falconidae (falcons and caracaras); Pandionidae (ospreys); Strigidae (typical owls); and Tytonidae (barn owls). The provisions of the 1972 amendment to the MBTA protects all species and subspecies of the families listed above. The MBTA protects over 800 species including geese, ducks, shorebirds, raptors, songbirds and many relatively common species.

State Regulations
California Environmental Quality Act (CEQA)
The California Environmental Quality Act (CEQA) provides for the protection of the environment within the State of California by establishing State policy to prevent significant, avoidable damage to the environment through the use of alternatives or mitigation measures for projects. It applies to actions directly undertaken, financed, or permitted by State lead agencies. If a project is determined to be subject to CEQA, the lead agency will be required to conduct an Initial Study (IS); if the IS determines that the project may have significant impacts on the environment, the lead agency will subsequently be required to write an Environmental Impact Report (EIR). A finding of non-significant effects will require either a Negative Declaration or a Mitigated Negative Declaration instead of an EIR. Section 15380 of the CEQA Guidelines independently defines “endangered” and “rare” species separately from the definitions of the California Endangered Species Act (CESA). Under CEQA, “endangered” species of plants or animals are defined as those whose survival and reproduction in the wild are in immediate jeopardy, while “rare” species are defined as those who are in such low numbers that they could become endangered if their environment worsens.

California Endangered Species Act (CESA)
In addition to federal laws, the state of California implements the CESA which is enforced by CDFW. The CESA program maintains a separate listing of species beyond the FESA, although the provisions of each act are similar.

State-listed threatened and endangered species are protected under provisions of the CESA. Activities that may result in “take” of individuals (defined in CESA as; “hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture, or kill”) are regulated by CDFW. Habitat degradation or modification is not included in the definition of “take” under CESA. Nonetheless, CDFW has interpreted “take” to include the destruction of nesting, denning, or foraging habitat necessary to maintain a viable breeding population of protected species.

The State of California considers an endangered species as one whose prospects of survival and reproduction are in immediate jeopardy. A threatened species is considered as one present in such small numbers throughout its range that it is likely to become an endangered species in the near future in the Attachment E – Regulations
absence of special protection or management. A rare species is one that is considered present in such small numbers throughout its range that it may become endangered if its present environment worsens. State threatened and endangered species are fully protected against take, as defined above.

The CDFW has also produced a species of special concern list to serve as a species watch list. Species on this list are either of limited distribution or their habitats have been reduced substantially, such that a threat to their populations may be imminent. Species of special concern may receive special attention during environmental review, but they do not have formal statutory protection. At the federal level, USFWS also uses the label species of concern, as an informal term that refers to species which might be in need of concentrated conservation actions. As the Species of Concern designated by USFWS do not receive formal legal protection, the use of the term does not necessarily ensure that the species will be proposed for listing as a threatened or endangered species.

Fish and Game Code
Fish and Game Code Sections 3503, 3503.5, 3511, and 3513 are applicable to natural resource management.

For example, Section 3503 of the Code makes it unlawful to destroy any birds’ nest or any birds’ eggs that are protected under the MBTA. Further, any birds in the orders Falconiformes or Strigiformes (Birds of Prey, such as hawks, eagles, and owls) are protected under Section 3503.5 of the Fish and Game Code which makes it unlawful to take, possess, or destroy their nest or eggs. A consultation with CDFW may be required prior to the removal of any bird of prey nest that may occur on a project site. Section 3511 of the Fish and Game Code lists fully protected bird species, where the CDFW is unable to authorize the issuance of permits or licenses to take these species. Pertinent species that are State fully protected by the State include golden eagle (Aquila chrysaetos) and white-tailed kite (Elanus leucurus). Section 3513 of the Fish and Game Code makes it unlawful to take or possess any migratory nongame bird as designated in the MBTA or any part of such migratory nongame bird except as provided by rules and regulations adopted by the Secretary of the Interior under provisions of the MBTA.

Native Plant Protection Act
Sections 1900–1913 of the Fish and Game Code were developed to preserve, protect, and enhance Rare and Endangered plants in the state of California. The act requires all state agencies to use their authority to carry out programs to conserve Endangered and Rare native plants. Provisions of the Native Plant Protection Act prohibit the taking of listed plants from the wild and require notification of the CDFW at least ten days in advance of any change in land use which would adversely impact listed plants. This allows the CDFW to salvage listed plant species that would otherwise be destroyed.

California Native Plant Society Rare and Endangered Plant Species Vascular plants listed as rare or endangered by the CNPS, but which have no designated status under FESA or CESA are defined as follows:

California Rare Plant Rank
1A- Plants Presumed Extirpated in California and either Rare or Extinct Elsewhere 1B- Plants Rare, Threatened, or Endangered in California and Elsewhere Attachment E – Regulations
2A- Plants Presumed Extirpated in California, But More Common Elsewhere 2B- Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere 3-
4-
Plants about Which More Information is Needed - A Review List Plants of Limited Distribution - A Watch List
Threat Ranks
.1- Seriously threatened in California (over 80% of occurrences threatened / high degree and immediacy of threat)
.2- Moderately threatened in California (20-80% occurrences threatened / moderate degree and immediacy of threat)
.3- Not very threatened in California (<20% of occurrences threatened / low degree and immediacy of threat or no current threats known).

Local Policies
Coachella Valley MSHCP
A Multiple Species Habitat Conservation Plan (Plan) was prepared for the entire Coachella Valley and surrounding mountains to address current and potential future state and federal Endangered Species Act issues in the Plan Area. A Memorandum of Understanding (“Planning Agreement”) was developed to govern the preparation of the Plan. In late 1995 and early 1996, under the auspices of CVAG, the cities of Cathedral City, Coachella, Desert Hot Springs, Indian Wells, Indio, La Quinta, Palm Desert, Palm Springs, and Rancho Mirage; County of Riverside (County); U.S. Fish and Wildlife Service (USFWS); California Department of Fish and Game (CDFG); Bureau of Land Management (BLM); U.S. Forest Service (USFS); and National Park Service (NPS) signed the Planning Agreement to initiate the planning effort.

Subsequently, Caltrans, Coachella Valley Water District (CVWD), Imperial Irrigation District (IID), Riverside County Flood Control and Water Conservation District (County Flood Control), Riverside County Regional Park and Open Space District (County Parks), Riverside County Waste Resources Management District (County Waste), California Department of Parks and Recreation (State Parks), and CVMC decided to participate in the Plan.

The Plan balances environmental protection and economic development objectives in the Plan Area and simplifies compliance with endangered species related laws. The Plan is intended to satisfy the legal requirements for the issuance of Permits that will allow the Take of species covered by the Plan in the course of otherwise lawful activities. The Plan will, to the maximum extent practicable, minimize and mitigate the impacts of the Taking and provide for Conservation of the Covered Species.

The Conservation Plan includes the establishment of an MSHCP Reserve System, setting Conservation Objectives to ensure the Conservation of the Covered Species and conserved natural communities in the MSHCP Reserve System, provisions for management of the MSHCP Reserve System, and a Monitoring Program, and Adaptive Management. The MSHCP Reserve System will be established from lands within Attachment E – Regulations
21 Conservation Areas. Because some Take Authorization is provided under the Plan for Development in Conservation Areas, the actual MSHCP Reserve System will be somewhat smaller than the total acres in the Conservation Areas. When assembled, the Reserve System will provide for the Conservation of the Covered Species in the Plan Area.

Attachment E – Regulations
There are three key agencies that regulate activities within inland streams, wetlands, and riparian areas in California. The Corps Regulatory Branch regulates activities pursuant to Section 404 of the Federal Clean Water Act (CWA) and Section 10 of the Rivers and Harbors Act. Of the State agencies, the CDFG regulates activities under the Fish and Game Code Section 1600-1616, and the Regional Board regulates activities pursuant to Section 401 of the CWA and the California Porter-Cologne Water Quality Control Act.

Federal Regulations
Section 404 of the Clean Water Act
In accordance with the Revised Definition of “Waters of the United States”; Conforming (September 8, 2023), “waters of the United Sates” are defined as follows:
(a) Waters of the United States means:
(1) Waters which are:
(i) Currently used, or were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide; (ii) The territorial seas; or
(iii) Interstate waters;
(2) Impoundments of waters otherwise defined as waters of the United States under this definition, other than impoundments of waters identified under paragraph (a)(5) of this section; (3) Tributaries of waters identified in paragraph (a)(1) or (2) of this section that are relatively permanent, standing or continuously flowing bodies of water; (4) Wetlands adjacent to the following waters:
(i) Waters identified in paragraph (a)(1) of this section; or (ii) Relatively permanent, standing or continuously flowing bodies of water identified in paragraph (a)(2) or (a)(3) of this section and with a continuous surface connection to those waters; (5) Intrastate lakes and ponds not identified in paragraphs (a)(1) through (4) of this section that are relatively permanent, standing or continuously flowing bodies of water with a continuous surface connection to the waters identified in paragraph (a)(1) or (a)(3) of this section (b) The following are not “waters of the United States” even where they otherwise meet the terms of paragraphs (a)(2) through (5) of this section:
(1) Waste treatment systems, including treatment ponds or lagoons, designed to meet the requirements of the Clean Water Act;
(2) Prior converted cropland designated by the Secretary of Agriculture. The exclusion would cease upon a change of use, which means that the area is no longer available for the production of agricultural commodities. Notwithstanding the determination of an area's status as prior converted Attachment E – Regulations
cropland by any other Federal agency, for the purposes of the Clean Water Act, the final authority regarding Clean Water Act jurisdiction remains with EPA; (3) Ditches (including roadside ditches) excavated wholly in and draining only dry land and that do not carry a relatively permanent flow of water;
(4) Artificially irrigated areas that would revert to dry land if the irrigation ceased; (5) Artificial lakes or ponds created by excavating or diking dry land to collect and retain water and which are used exclusively for such purposes as stock watering, irrigation, settling basins, or rice growing;
(6) Artificial reflecting or swimming pools or other small ornamental bodies of water created by excavating or diking dry land to retain water for primarily aesthetic reasons; (7) Waterfilled depressions created in dry land incidental to construction activity and pits excavated in dry land for the purpose of obtaining fill, sand, or gravel unless and until the construction or excavation operation is abandoned and the resulting body of water meets the definition of waters of the United States; and
(8) Swales and erosional features (e.g., gullies, small washes) characterized by low volume, infrequent, or short duration flow.
(c) In this section, the following definitions apply:
(1) Wetlands means those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas.
(2) Adjacent means having a continuous surface connection (3) High tide line means the line of intersection of the land with the water's surface at the maximum height reached by a rising tide. The high tide line may be determined, in the absence of actual data, by a line of oil or scum along shore objects, a more or less continuous deposit of fine shell or debris on the foreshore or berm, other physical markings or characteristics, vegetation lines, tidal gages, or other suitable means that delineate the general height reached by a rising tide. The line encompasses spring high tides and other high tides that occur with periodic frequency but does not include storm surges in which there is a departure from the normal or predicted reach of the tide due to the piling up of water against a coast by strong winds such as those accompanying a hurricane or other intense storm.
(4) Ordinary high water mark means that line on the shore established by the fluctuations of water and indicated by physical characteristics such as clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas.

Attachment E – Regulations
(5) Tidal waters means those waters that rise and fall in a predictable and measurable rhythm or cycle due to the gravitational pulls of the moon and sun. Tidal waters end where the rise and fall of the water surface can no longer be practically measured in a predictable rhythm due to masking by hydrologic, wind, or other effects.

Section 401 of the Clean Water Act
Pursuant to Section 401 of the CWA, any applicant for a federal license or permit to conduct any activity which may result in any discharge to waters of the United States must provide certification from the State or Indian tribe in which the discharge originates. This certification provides for the protection of the physical, chemical, and biological integrity of waters, addresses impacts to water quality that may result from issuance of federal permits, and helps insure that federal actions will not violate water quality standards of the State or Indian tribe. In California, there are nine Regional Water Quality Control Boards (Regional Board) that issue or deny certification for discharges to waters of the United States and waters of the State, including wetlands, within their geographical jurisdiction. The State Water Resources Control Board assumed this responsibility when a project has the potential to result in the discharge to waters within multiple Regional Boards.

State Regulations
Fish and Game Code
Fish and Game Code Sections 1600 et. seq. establishes a fee-based process to ensure that projects conducted in and around lakes, rivers, or streams do not adversely impact fish and wildlife resources, or, when adverse impacts cannot be avoided, ensures that adequate mitigation and/or compensation is provided.

Fish and Game Code Section 1602 requires any person, state, or local governmental agency or public utility to notify the CDFW before beginning any activity that will do one or more of the following:
(1) substantially obstruct or divert the natural flow of a river, stream, or lake; (2) substantially change or use any material from the bed, channel, or bank of a river, stream, or lake; or
(3) deposit or dispose of debris, waste, or other material containing crumbled, flaked, or ground pavement where it can pass into a river, stream, or lake.

Fish and Game Code Section 1602 applies to all perennial, intermittent, and ephemeral rivers, streams, and lakes in the State. CDFW’s regulatory authority extends to include riparian habitat (including wetlands) supported by a river, stream, or lake regardless of the presence or absence of hydric soils and saturated soil conditions. Generally, the CDFW takes jurisdiction to the top of bank of the stream or to the outer limit of the adjacent riparian vegetation (outer drip line), whichever is greater. Notification is generally required for any project that will take place in or in the vicinity of a river, stream, lake, or their tributaries. This includes rivers or streams that flow at least periodically or permanently through a bed or channel with banks that support fish or other aquatic life and watercourses having a surface or subsurface flow that support or have supported riparian vegetation. A Section 1602 Streambed Alteration Agreement would be required if impacts to identified CDFW jurisdictional areas occur.

Attachment E – Regulations
Porter Cologne Act
The California Porter-Cologne Water Quality Control Act gives the State very broad authority to regulate waters of the State, which are defined as any surface water or groundwater, including saline waters. The Porter-Cologne Act has become an important tool in the post SWANCC and Rapanos regulatory environment, with respect to the state’s authority over isolated and insignificant waters. Generally, any person proposing to discharge waste into a water body that could affect its water quality must file a Report of Waste Discharge in the event that there is no Section 404/401 nexus. Although “waste” is partially defined as any waste substance associated with human habitation, the Regional Board also interprets this to include fill discharged into water bodies.

Appendix C
Cultural and Paleontological Resources

CULTURAL RESOURCE INVESTIGATION IN SUPPORT

OF THE DATE PALM AND ROSEMOUNT STORAGE PROJECT,

CATHEDRAL CITY, RIVERSIDE COUNTY, CALIFORNIA
08/09/2022

CULTURAL RESOURCE INVESTIGATION IN SUPPORT OF THE

DATE PALM AND ROSEMOUNT STORAGE PROJECT,

CATHEDRAL CITY, RIVERSIDE COUNTY, CALIFORNIA
Prepared by:

Joy Vyhmeister, M.A., RPA
Michael Mirro, M.A., RPA
Prepared for:

The Altum Group
44-600 Village Court, Suite 100
Palm Desert, California 92260
Technical Report No. 23-429
PaleoWest, LLC
301 9th Street, Suite 114
Redlands, California 92374
(909) 254-4035
March 5, 2024
Keywords: CEQA; Cathedral City; Coachella valley; Riverside County; 7.1 acres; negative survey

MANAGEMENT SUMMARY
PaleoWest, LLC (PaleoWest) was contracted by The Altum Group to conduct a Phase I cultural resource assessment for the proposed Date Palm and Rosemount Storage Project (Project).

The Project is planned to construct either retail uses with a 2-story indoor mini-storage facility, or a grocery store up to 50,000 square feet, 2-story indoor mini-storage facility, and retail uses, parking, landscaping, and a retention basin in Cathedral City, Riverside County, California. The Project requires compliance with the California Environmental Quality Act (CEQA). Cathedral City (City) is acting as the lead CEQA agency.

This report summarizes the methods and results of the cultural resource investigation of the Project area. The investigation included background research, communication with the Native American Heritage Commission (NAHC) and interested Native American tribal groups, and a pedestrian survey of the Project area. The purpose of the investigation was to determine the potential for the Project to impact archaeological and historical resources under CEQA.

A cultural resource records search and literature review was conducted at the Eastern Information Center of the California Historical Resource Information System on July 6, 2023.

The records search indicated that no fewer than 13 previous studies have been conducted within 1 mile (mi) of the Project area. These studies have resulted in the documentation of four cultural resources within 1 mi of the Project area, all of which are historic period isolated finds composed of sanitary cans. None of these previously documented resources are mapped within the Project area.

As part of the cultural resource assessment of the Project area, PaleoWest also requested a search of the Sacred Lands File from the NAHC on February 28, 2023. Results indicate that there are no known Native American cultural resources within the immediate Project area. The NAHC suggested contacting 18 individuals representing 12 Native American tribal groups to find out if they have additional information about the Project area. The 12 recommended tribal groups were contacted. To date, six responses have been received.

PaleoWest conducted a pedestrian survey of the Project area on July 17, 2023. No archaeological or built-environment resources were identified during the survey, but geoarchaeological data indicate that the Project area is moderately sensitive for buried archaeological deposits. PaleoWest recommends that an archaeological monitor be retained to observe ground disturbing activities during the initial phases of construction. If the qualified archaeologist determines that the construction activities have little or no potential to impact cultural resources (e.g., excavations are within previously disturbed, non-native soils, or within soil formations not expected to yield cultural resources deposits), then monitoring may be reduced or eliminated.

In the event that potentially significant cultural resources are encountered during construction activities associated with the Project, a qualified archaeologist shall be obtained to assess the significance of the find in accordance with the criteria set forth in the California Register of Historic Places. In addition, Health and Safety Code 7050.5, CEQA 15064.5(e), and Public Resources Code 5097.98 mandate the process to be followed in the unlikely event of an accidental discovery of any human remains in a location other than a dedicated cemetery.

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CONTENTS
1 2
INTRODUCTION.....................................................................................................................1

1.1 PROJECT LOCATION AND DESCRIPTION.......................................................1

1.2 REPORT ORGANIZATION .................................................................................2 REGULATORY CONTEXT.....................................................................................................5

2.1 STATE .................................................................................................................5

2.1.1 California Environmental Quality Act........................................................5

2.1.2 California Assembly Bill 52.......................................................................5

2.2 LOCAL.................................................................................................................6

2.2.1 City of Cathedral City Comprehensive General Plan...............................6 3 SETTING.................................................................................................................................7

3.1 ENVIRONMENTAL SETTING .............................................................................7

3.1.1 Lake Cahuilla ...........................................................................................8

3.2 PREHISTORIC SETTING....................................................................................8

3.2.1 Paleoindian Period...................................................................................9

3.2.2 Early Archaic Period.................................................................................9

3.2.3 Middle Archaic Period ............................................................................10

3.2.4 Late Archaic Period................................................................................11

3.2.5 Saratoga Springs Period........................................................................12

3.2.6 Late Prehistoric Period...........................................................................13

3.3 ETHNOHISTORIC SETTING ............................................................................13

3.4 HISTORICAL SETTING.....................................................................................14 4 5
CULTURAL RESOURCES INVENTORY.............................................................................16

4.1 PREVIOUS CULTURAL RESOURCES INVESTIGATIONS .............................16

4.2 CULTURAL RESOURCES REPORTED WITHIN 1 MILE OF THE PROJECT AREA ................................................................................................................18

4.3 ADDITIONAL SOURCES ..................................................................................18

4.4 BURIED SITE SENSITIVITY ASSESSMENT....................................................18

4.5 NATIVE AMERICAN COORDINATION.............................................................19 FIELD INVESTIGATION.......................................................................................................20

5.1 FIELD METHODS..............................................................................................20

5.2 FIELD RESULTS...............................................................................................20 6 7
MANAGEMENT RECOMMENDATIONS .............................................................................22 REFERENCES......................................................................................................................23

APPENDICES
Appendix A. Native American Coordination

FIGURES
Figure 1-1. Project vicinity map....................................................................................... 3 Figure 1-2. Project location map. .................................................................................... 4 Figure 5-1. Overview of the Project area, facing north. ................................................. 21 Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 3
Figure 5-2. Overview of southern portion of the Project area cut by a road, facing east. ................................................................................................................... 21 TABLES
Table 4-1. Previous Cultural Investigations within the Project Study Area .................... 17 Table 4-2. Previously Recorded Cultural Resources within the Project Study Area...... 18 Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 4
1 INTRODUCTION
PaleoWest, LLC (PaleoWest) was contracted by The Altum Group to conduct a Phase I cultural resource assessment for the proposed Date Palm and Rosemount Storage Project (Project).

The Project involves the development of an approximately 7-acre parcel in Cathedral City, Riverside County, California. The Project requires compliance with the California Environmental Quality Act (CEQA). Cathedral City (City) is acting as the lead CEQA agency.

1.1 PROJECT LOCATION AND DESCRIPTION
The Project area is in Cathedral City, east of Date Palm Avenue on an undeveloped lot between Mccallum Way to the south and Rosemount Road to the north (Figure 1-1). The Project area is on Assessor’s Parcel Numbers (APNs) 670110048, 670110049, 670110050, 670110051, 670110052, 670110053, and 670110056, and totals approximately 7.1 acres. As shown in Figure 1-2, the Project area is within Section 15, Township (T) 4 South (S), Range (R) 5 East (E), San Bernardino Baseline and Meridian (SBBM), as depicted on the Cathedral City, California 7.5' U.S. Geological Survey (USGS) topographic quadrangle. The elevation of the Project area is between 118 meters (m; 386 ft) above mean sea level (amsl) and 119 m (389 ft) amsl.

The proposed Project includes the development of approximately seven (7) acres located in the city of Cathedral City, east of Date Palm Drive, between Rosemount Road to the north and McCallum Way to the south. The project will require a recommendation from the Planning Commission and for City Council to take final action on an entitlement and legislative action for parcels including APN: 670-110-48, 49, 50, 51, 52, 53, & 56. The proposed project includes the below:

A Design Review and Lot Merger for the construction of a 2-story indoor mini-storage facility with a total area of 115,054 square feet at 57,527 square feet per floor. The current zoning of the site is Specific Plan No. 99-58 with the underlying zone of PCC (Planned Community Commercial) District.

A Specific Plan Amendment to create Planning Unit 4 which would allow the indoor ministorage use and a 50,000 square foot grocery store as well as changes to the development code, new streamlined architectural standards, and updated list of permitted and conditional land uses.

The Mitigated Negative Declaration was processed at full buildout so that future entitlements would not have to obtain separate Mitigated Negative Declarations. At full buildout the project could include either of two scenarios: retail uses with a 2-story indoor mini-storage facility, or a grocery store up to 50,000 square feet, 2-story indoor mini-storage facility, and retail uses. The project is currently being proposed as a phased project and each future proposal would require its own entitlement consistent with the Mitigated Negative Declaration. The Design Review only includes the indoor mini-storage facility, underground retention basin, and a minimum of 12 spaces for on-site parking.

With regard to CEQA, the proposed Project would be developed with phased construction which includes the operation of a 2-story 115,054 square foot (sf) indoor climate-controlled mini-storage facility with 57,527 square feet per floor. The indoor mini-storage facility includes Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 1
climate-controlled self-storage, retail, office, and loading areas. The CEQA Analysis includes two scenarios, scenario one would include the first phase which would be an approximate two (2) story 115,054 square feet (sf) at 57,527 sf per floor, climate controlled self-storage facility with associated retail, office, and loading areas and Phase 2 would include one (1) retail building approximately 4,725 sf in size, two (2) drive through facilities with areas of 2,413 sf and 4,617 sf respectively, and two (2) retail buildings with areas of 3,217 sf each. Scenario two would include the two (2) story 115,054 square feet (sf) at 57,527 sf per floor, climate-controlled selfstorage facility with associated retail, office, and loading Units and one (1) grocery store/big box building with a maximum Unit of 50,000 sf, and a retail building with a Unit of 4,725 sf. Both alternatives will have on-site landscaping, on-site parking, signage, low walls, along frontage, and underground retention for on-site water retention.

1.2 REPORT ORGANIZATION
This report documents the results of a cultural resource investigation conducted for the proposed Project. Section 1 has introduced the Project location and description. Section 2 states the regulatory context that should be considered for the Project. Section 3 synthesizes the natural and cultural setting of the Project area and surrounding region. The results of the existing cultural resource data literature and resource record review, the Sacred Lands File (SLF) search, and a summary of the Native American communications is presented in Section

4. The field methods and results are outlined in Section 5, and management recommendations are provided in Section 6. This is followed by bibliographic references and appendices.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 2
Figure 1-1. Project vicinity map.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 3
Figure 1-2. Project location map.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 4
2 REGULATORY CONTEXT

2.1 STATE

2.1.1 California Environmental Quality Act
The proposed Project is subject to compliance with CEQA, as amended in 2018. Compliance with CEQA statutes and guidelines requires both public and private projects with financing or approval from a public agency to assess the project’s impact on cultural resources (Public Resources Code Section 21082, 21083.2 and 21084 and California Code of Regulations 10564.5). The first step in the process is to identify cultural resources that may be impacted by the project and then determine whether the resources are “historically significant” resources.

CEQA defines historically significant resources as “resources listed or eligible for listing in the California Register of Historical Resources (CRHR)” (Public Resources Code Section 5024.1). A cultural resource may be considered historically significant if the resource is 45 years old or older, possesses integrity of location, design, setting, materials, workmanship, feeling, and association, and meets any of the following criteria for listing on the CRHR:

1. Is associated with events that have made a significant contribution to the broad patterns of California’s history and cultural heritage;

2. Is associated with the lives of persons important in our past;

3. Embodies the distinctive characteristics of a type, period, region, or method of construction, or represents the work of an important creative individual, or possesses high artistic values; or,

4. Has yielded, or may be likely to yield, information important in prehistory or history (Public Resources Code Section 5024.1).

Cultural resources are buildings, sites, humanly modified landscapes, traditional cultural properties, structures, or objects that may have historical, architectural, cultural, or scientific importance. CEQA states that if a project will have a significant impact on important cultural resources, deemed “historically significant,” then project alternatives and mitigation measures must be considered.

2.1.2 California Assembly Bill 52
Signed into law in September 2014, California Assembly Bill 52 (AB 52) created a new class of resources—tribal cultural resources (TCRs)—for consideration under CEQA. TCRs may include sites, features, places, cultural landscapes, sacred places, or objects with cultural value to a California Native American tribe that are listed or determined to be eligible for listing in the CRHR, included in a local register of historical resources, or a resource determined by the lead CEQA agency, in its discretion and supported by substantial evidence, to be significant and eligible for listing on the CRHR. AB 52 requires that the lead CEQA agency consult with California Native American tribes that have requested consultation for projects that may affect tribal cultural resources. The lead CEQA agency shall begin consultation with participating Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 5
Native American tribes prior to the release of a negative declaration, mitigated negative declaration, or environmental impact report. Under AB 52, a project that has potential to cause a substantial adverse change to a tribal cultural resource constitutes a significant effect on the environment unless mitigation reduces such effects to a less than significant level.

2.2 LOCAL

2.2.1 City of Cathedral City Comprehensive General Plan The City’s Comprehensive General Plan includes an Archaeological and Historic Resources Element (City of Cathedral City 2009). This element identifies goals, policies, and programs to ensure that cultural heritage and historic traditions of the City of Cathedral City and its vicinity are preserved. The goal of the element is identification, preservation, and revitalization of significant cultural, historical and archaeological resources that are valuable to the City of Cathedral City’s heritage. The following policies and programs have been established to help reach that goal.

Policies:

1. The City will ensure that sites in archaeologically and historically sensitive areas are surveyed prior to development.

Program 1.A: Develop and maintain a database of archaeological and historic resources, incorporating information from the Eastern Information Center (EIC) at the University of California, Riverside, General Land Office (GLO) Survey, site surveys conducted in the planning area, and other data sources.

Program 1.B: City staff shall require, early in the project review process, the preparation of focused cultural resource surveys in areas of known sensitivity.

Program 1.C: The City shall adopt specific standards for the identification, preservation and maintenance of archaeological and historic sites. These standards shall include professional qualifications for persons performing site-specific surveys.

Program 1.D: As part of the development review process, the City shall transmit development applications to the EIC for comment.

Program 1.E: In the event archaeological resources are identified during construction, the City shall require that development cease, and a professional archaeologist shall be employed to examine and document the site to determine subsequent actions.

2. The City shall make every effort to protect sensitive archaeological and historic resources from vandalism and illegal collection.

Program 2.A: Mapping and site-specific information shall be kept confidential, and access shall be given only to those with appropriate professional credentials.

Program 2.B: The preservation of sensitive sites or artifacts in-situ should be considered whenever feasible.

3. The City shall encourage the Cathedral City Historical Society to establish a program to qualify and list locally significant resources on available state and federal registers.

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Program 3.A: The City and Historical Society shall cooperate to complete a city-wide cultural resource inventory to include both prehistoric and historic resources.

Program 3.B: The City will consider participating in the Certified Local Government program in order to secure better local control over the management of cultural resources.

4. Encourage public participation and appreciation of archaeological and historic resources.

Program 4.A: Continue to coordinate and cooperate with the Agua Caliente Band of Cahuilla Indians in the identification and preservation of sensitive Cahuilla Indian sites and resources, and the continued expansion of the tribal Cultural Museum.

5. Consider offering economic incentives, such as low-interest loans from all possible sources, and application/permitting fee reductions or waivers, to property owners to encourage the maintenance of significant historical and cultural buildings and sites.

Program 5.A: Provide property owners with information and guidance on property rehabilitation measures and financing alternatives. 3 SETTING
This section of the report summarizes information regarding the physical and cultural setting of the Project area, including the prehistoric, ethnographic, and historic contexts of the general area. Several factors, including topography, available water sources, and biological resources, affect the nature and distribution of prehistoric, ethnographic, and historic-period human activities in an area. This background provides a context for understanding the nature of the cultural resources that may be identified within the region.

3.1 ENVIRONMENTAL SETTING
The Project area is east of the Peninsular Ranges in the southern extent of the Coachella Valley, at the western edge of the Colorado Desert. The Coachella Valley is bordered by the San Jacinto and Santa Rosa mountains (part of the Peninsular Ranges) to the southwest and by the low, rolling Indio and Mecca hills to the northeast. From the steep slopes of the San Jacinto Mountains, the desert floor descends suddenly at less than 3 kilometers (km; 2 miles [mi]) eastward to sea level in the city of Indio, less than 20 mi southeast of the Project area.

South of the Project area, elevations gradually drop to 90 m (300 ft) below mean sea level (bmsl) at the Salton Sea Basin. This basin has filled periodically throughout the Pleistocene and Holocene when the Colorado River shifted its course near its mouth at the Gulf of California, flowing north into the basin and forming a large freshwater lake, commonly known as Lake Cahuilla. A major water source flowing through the central valley is the Whitewater River. The river drained the southern slope of the San Bernardino Mountains for thousands of years (Laflin 2001), prior to the development of the Coachella Valley, flowing in a generally south-southeast direction 80.5 kilometers (50 mi) toward the Salton Sea. The Whitewater River was likely the largest perennial stream that entered the Salton Basin during prehistoric times, replenishing the underground aquifer during nonlacustrine intervals. The Whitewater River Storm Channel runs along the western boundary of the Project area.

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Prior to the mid-1900s, the climate of the Project region was characterized by low relative humidity, very low rainfall, high summer temperatures of up to 52° Celsius (125° Fahrenheit), and mild winters. Since the 1950s, the relative humidity in the area has risen gradually as more and more golf courses have been built and maintained in the Coachella Valley. High winds are common and are accompanied by blowing sand and dust during the spring and late fall. Within the desert areas surrounding the Project area, the average annual rainfall is as sparse as 6 centimeters (2.5 inches) per year, and occurs primarily during the winter months. The Project area is within a region identified by Bean and Saubel (1972) as a Lower Sonoran life zone. The Lower Sonoran life zone is characterized by low rainfall, fine-textured alluvial to sandy soils, and xerophytic plant communities.

3.1.1 Lake Cahuilla
Arguably the most important environmental change in the Colorado Desert in the past 2,000 years was the formation of Lake Cahuilla. In response to the western diversion of the Colorado River in the Salton Trough, Lake Cahuilla filled and shrank numerous times throughout the Pleistocene and Holocene. The lake would fill until the water reached an altitude of 12 m (40 ft), the minimum crest of the delta at Cerro Prieto, where overflow would spill into the Gulf of California (Waters 1983:374). Wilke (1976) calculated that it would take roughly 12 to 20 years of receiving the entire flow of the Colorado River to fill Lake Cahuilla to an altitude of 12 m (40 ft). Alternatively, Wilke (1976) also determined that approximately 60 years would be required to completely dry out the lake without input from the Colorado River.

Using radiocarbon assays, historical accounts and evidence, and cross dating artifacts found along the former Lake Cahuilla shoreline, researchers have posited five lacustrine intervals in the Salton Basin, representing an unknown number of stands of Lake Cahuilla during the past 2,000 years (Cleland 1998; Laylander 1994; Schaefer 1986; Waters 1983; Wilke 1976). The first and earliest of these events has been dated to A.D. 700–890, followed by a gradual, but complete, drought of the lake at about A.D. 950. The second interval began shortly after A.D. 950, peaking at approximately A.D. 965–1150, and followed by another gradual, but complete, desiccation of the lake at A.D. 1210. The third interval began shortly after A.D. 1210, peaking between A.D. 1225 and 1360. The third interval was followed by a gradual, but not complete desiccation of the lake by A.D. 1450; the lake remained approximately 50 m (165 ft) deep at this time. The fourth interval lasted between A.D. 1450–1520, desiccating again by A.D. 1580. The fifth, more recent lacustrine interval of Lake Cahuilla occurred during the Spanish explorations of the region between 1540 and 1775 (Cleland 1998:13).

Recent paleoclimatic research indicates that a Medieval Climatic Anomaly (MCA) was registered throughout Far West North America between circa 1060 and 575 calibrated Before Present (cal B.P.) (Graumlich 1993; Spaulding 2001; Stine 1994). Researchers believe the MCA would have restricted prehistoric occupation in the southern California deserts to a few suitable water sources, such as the Colorado River and Lake Cahuilla. High stands of Lake Cahuilla, whose source is not directly affected by climatic conditions, are in fact registered during the MCA, suggesting that the area was likely highly favorable for prehistoric occupation.

3.2 PREHISTORIC SETTING
Native American occupation of the Colorado Desert is typically divided into six cultural periods:

Paleoindian Period (ca. 10,500–9500 years B.P.); Early Archaic (ca. 9500–7000 B.P.); Middle Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 8
Archaic (ca. 7000–4000 B.P.); Late Archaic (ca. 4000–1500 B.P); Saratoga Springs (ca. 1500–750 B.P.); and the Late Prehistoric (ca. 750–410 B.P.). These cultural periods exclude the controversial “Early Man” pre-projectile point materials from Calico. The prehistoric cultural setting discussed below presents a brief description of each period based on the archival research conducted for the study area.

3.2.1 Paleoindian Period
The Paleoindian Period is marked by deglacial climatic changes that began by about 13,000 B.P. (Gosse et al. 1995; Mix 1987; Sowers and Bender 1995). In the desert interior, the change from glacial to postglacial ecosystems began by at least 11,700 B.P. (Spaulding 1995), but took millennia to complete. Paleoclimatic and paleoecological data suggest that, until about 7500 B.P., the prevailing westerly air flow pattern weakened, as the desert interior received moist monsoonal flow from the southeast (Davis and Sellers 1987; Spaulding and Graumlich 1986).

This monsoonal flow was blocked from reaching the inland valleys of cismontane southern California by the Transverse and Peninsular ranges (Spaulding 2001). As a result, the interior deserts had considerably higher levels of effective moisture during this time. Thus, the desert interior was apparently less arid than cismontane southern California during this period, and possessed an abundance of water sources and relatively productive ecosystems (Van Devender et al. 1987).

Both coastal and desert region designations for the early Holocene refer to a long period of human adaptation to environmental changes brought about by the transition from the late Pleistocene to the early Holocene geologic periods. As climatic conditions became warmer and more arid, Pleistocene megafauna perished abruptly between 13,000 and 10,000 B.P. Human populations responded to these changing environmental conditions by focusing their subsistence efforts on the procurement of a wider variety of faunal and floral resources.

These early occupants of Southern California are believed to have been nomadic large-game hunters whose tool assemblage included percussion-flaked scrapers and knives; large, wellmade fluted, leaf-shaped, or stemmed (e.g., Lake Mojave, Silver Lake) projectile points; crescentics; heavy core-cobble tools; hammerstones; bifacial cores; choppers; and scraper planes. Both Warren (1968, 1980) and Wallace (1978) suggest that the absence of milling tools commonly used for seed preparation indicates that an orientation toward hunting continued throughout this phase.

3.2.2 Early Archaic Period
The Early Archaic Period saw a continuation of the weather patterns described above for the latest Pleistocene/Early Holocene, with the coast and desert interior apparently much more favorable for human occupation than the cismontane valleys of southern California. It has been postulated that small, highly mobile groups still traveled over a wide home range utilizing highly portable tool kits to procure and process critical resources, with brief and anticipated intervals of seasonal sedentism. However, because of the arid conditions within the interior valley areas, prehistoric use of the inland valley regions would still have been negligible, as populations would still have favored the coastal or interior desert regions. Those populations exploiting the interior valleys would still have been tethered to the few, reliable, drought-resistant water sources, such as Lake Elsinore, Mystic Lake, and possibly the Cajalco Basin.

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Throughout areas of southern California, this interval has been described frequently as the “Milling Stone Horizon” because of the preponderance of milling tools (manos and metates) and paucity of projectile points and vertebrate faunal remains in sites dating to this era (Basgall and True 1985; Kowta 1969; Wallace 1955). In addition to the preponderance of milling equipment, the artifact inventory of this period is similar to that of the previous period and includes crude hammerstones, scraper planes, choppers, large drills, crescents, and large flake tools. This assemblage also occasionally includes large (dart-sized) projectile points and knives, and nonutilitarian artifacts such as beads, pendants, charmstones, discoidals, spherical stones, and cogged stones (Kowta 1969; True 1958; Warren et al. 1961).

Few sites dating to the Early Archaic have been documented within the inland valley areas of southern California, supporting the theory of negligible use of these localities at this time because of arid conditions. Many of these sites contain only scant evidence of Early Archaic use in the form of obsidian hydration rind measurements, suggesting ephemeral site use by small, mobile groups, However, some sites dating to the Early Archaic (e.g., CA-RIV-2798/H, CA-RIV-5786, and the lower cultural component at CA-RIV-6069) do contain evidence of fairly sedentary residential occupations and evidence that site reuse was anticipated, suggesting a predictable availability of water and other critical resources. These sites have been found invariably near large, drought-resistant, inland water sources, and may have been destination points on a scheduled, seasonal round.

3.2.3 Middle Archaic Period
The Middle Archaic saw a reversal of the weather patterns that had prevailed throughout much of cismontane southern California for several millennia. By about 6000 B.P., local environmental conditions ameliorated while conditions in the deserts deteriorated, reaching maximum aridity of the postglacial period (Antevs 1952; Hall 1985; Haynes 1967; Mehringer and Warren 1976; Spaulding 1991, 1995). Spaulding (2001) proposes that a westerly air-flow pattern returned to southern California while the monsoonal weather patterns in the deserts retreated. As a result, the inland areas may have seen increased effective moisture, and the interior deserts, no longer receiving moist monsoonal flow and now in the rainshadow of the Transverse and Peninsular Ranges, became quite arid. This suggests that cismontane southern California may have been a more hospitable environment than the interior deserts during the middle Holocene.

Due to both the amelioration of local environmental conditions and deterioration of conditions in the interior deserts, it has been postulated that the inland areas of cismontane southern California would see an increase in prehistoric use and occupation after about 6000 B.P. compared to earlier periods (Goldberg et al. 2001). Evidence has shown that Middle Archaic components include intensively used residential bases and/or temporary camps containing abundant cultural debris, including temporally diagnostic artifacts (Pinto and Silver Lake projectile points, crescents), lithic scatters that appear to have functioned as resource extraction and processing sites, and at least one human burial covered with large rocks and ground stone artifacts. In addition, evidence of ephemeral Middle Archaic use is present at several sites in the form of isolated radiocarbon-dated features and/or sparse scatters of obsidian debitage dated through obsidian hydration methods. These more intensively used residential locations occur along the margins of alluvial fans, and less intensively used areas tend to be in arroyo bottoms or on upland benches (Goldberg et al. 2001).

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In the desert regions of Southern California, the “Pinto Period” succeeded the “Lake Mojave Period” beginning approximately 7000 B.P. (or possibly as early as 8820 B.P.) and lasting to 4000 or 3500 B.P. Relatively recent paleoecological and paleohydrological evidence suggest maximum aridity in the desert regions between circa 7000 and 5000 B.P., with amelioration beginning approximately 4500 B.P. and continuing through 4000 B.P. (Spaulding 1991, 1995).

As an adaptive response to these changing climatic conditions, the Pinto Period is characterized by necessary shifts in prehistoric subsistence practices and adaptations, with greater emphasis placed on the exploitation of plants and small animals than the preceding Lake Mojave Period, as well as a continued focus on artiodactyls (Warren 1980, 1984).

3.2.4 Late Archaic Period
The Late Archaic Period was one of cultural intensification in southern California. The beginning of the Late Archaic coincides with the Little Pluvial, a period of increased moisture in the region. Effective moisture continued to increase in the desert interior by approximately 3600 B.P. and lasted throughout most of the Late Archaic. This ameliorated climate allowed for more extensive occupation of the region. By approximately 2100 B.P., however, drying and warming increased, perhaps causing resource intensification.

Technologically, the artifact assemblage of the Late Archaic was similar to the preceding Middle Archaic, but new tools were added, either as innovations or as “borrowed” cultural items. Diagnostic projectile points of this period are still large (dart-sized), but also include more refined notched (Elko), concave base (Humboldt), and small stemmed (Gypsum) forms (Warren 1984). Late in the period, Rose Spring arrow points appear in the archaeological record in the deserts, reflecting the spread of bow and arrow technology from the Great Basin and the Colorado River region. However, there is no evidence to suggest that the bow and arrow had come into use at this time in the inland valleys of southern California.

In the eastern deserts of southern California, the “Gypsum Period” (ca. 4000 to 1500 B.P.) is generally coeval with Wallace’s (coastal) Intermediate Horizon. In addition to diagnostic projectile points (Elko, Humboldt, Gypsum), Gypsum Period sites include leaf-shaped points, rectangular-based knives, flake scrapers, T-shaped drills and, occasionally, large scraper planes, choppers, and hammerstones (Warren 1984:416). Manos and milling stones are also common.

A technological innovation introduced during this period was the mortar and pestle, used for processing acorns and hard seeds, such as those derived from hollyleaf cherry and mesquite pods. In addition, the frequencies of grinding tools show the increasing importance of plant foods throughout the Late Archaic, with a substantially greater emphasis after 2000 B.P. (Goldberg et. al. 2001). Other artifacts include arrow shaft straighteners, incised slate and sandstone tablets and pendants, bone awls, Olivella shell beads, and Haliotis beads and ornaments. The presence of both Haliotis and Olivella ornaments and split-twig figurines indicates that the California desert occupants were in contact with populations from the southern California coast, as well as the southern Great Basin (e.g. Arizona, Utah, Nevada).

Increased contact with neighboring groups likely provided desert occupants important storable foodstuffs during less productive seasons or years, in exchange for valuable lithic materials such as obsidian, chalcedonies, and cherts. The increased carrying capacity and intensification of resources suggests higher populations in the desert with a greater ability to adapt to arid conditions (Warren 1984:420).

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3.2.5 Saratoga Springs Period
Because paleoenvironmental conditions were little changed from the preceding period, cultural trends in the early Saratoga Springs Period were, in large part, a continuation of the developments that began during the end of the Late Archaic. However, the MCA, a period of even more persistent drought, began by 1060 B.P., and conditions became significantly warmer and drier. These climatic conditions were experienced throughout the western U.S. (Jones et al.1999; Kennett and Kennett 2000), although the inland areas of cismontane southern California may have been less affected than the desert interior. The MCA continued through the first 200 years of the Late Prehistoric Period until approximately 550 B.P. (Spaulding 2001).

Throughout much of the California deserts, the Saratoga Springs Period saw essentially a continuation of the Gypsum Period subsistence adaptation.Unlike the preceding period, the Saratoga Springs Period is marked by strong regional cultural developments, especially in the southern desert regions, which were heavily influenced by the Hakataya (or Patayan) culture of the lower Colorado River (Warren 1984:421–0422). Specifically, turquoise mining and longdistance trade networks appear to have attracted both Ancestral Pueblo and Hakataya peoples into the California deserts from the east and southeast, respectively, as evidenced by the introduction of Buff and Brown Ware pottery and Cottonwood and Desert Side-notched arrow points. The initial date for the first Hakataya influence in the south Mojave Desert remains unknown, but it appears that by about 1000 to 1100 B.P., the Mojave Sink was heavily influenced, if not occupied by, lower Colorado River peoples.

During this period, the onset of the MCA circa 1060 B.P. led to the withdrawal of Native American populations from marginal desert areas to more reliable, drought resistant water sources such as the Colorado River and ancient Lake Cahuilla, the episodic presence of which was not climatically controlled, but dependent upon natural discharges from the Colorado River.

Ancient Lake Cahuilla experienced at least two high stands (between 1010 and 740 cal B.P. and again between 740 and 580 cal B.P.) during the MCA (Waters 1983).

The shoreline of recent high stands of Lake Cahuilla extended from about 32 km (20 mi) south of the Mexican border to just northwest of the modern city of Indio, inundating much of the Coachella and Imperial valleys. During late Holocene periods of high water, the lake’s surface attained maximum elevations of approximately 12 m (40 ft) amsl (Wilke 1976:53) or perhaps a bit higher (Moratto and McDougall 2017). When inflow from the Colorado River was sufficient to maintain a relatively stable lake level, extensive marshes would have formed around its margins and waterfowl, freshwater fish, and shellfish populations would have flourished. Thus, Lake Cahuilla would have offered an especially productive environment for aboriginal populations of the western Colorado Desert. Additionally, as Lake Cahuilla gradually declined, the expansion of mesquite thickets would have followed the retreating shoreline, resulting in different resources available for exploitation by prehistoric inhabitants of the region (Smith and Brock 1998). Considering each interval of filling the empty basin or evaporating the water may have taken decades, it is clear that during much of the past 2300 years, the lake was neither full nor empty (Norris and Webb 1990). Because the areal extent of Lake Cahuilla was highly variable over time, Native American settlement must have shifted often as the shoreline advanced or retreated.

In late prehistoric times, especially after circa 950 B.P., toolstone from Obsidian Butte was used widely in Southern California. The source could be inundated and its glass inaccessible whenever Lake Cahuilla’s surface elevation was higher than around 40 m (131 ft) (Schafer and Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 12
Laylander 2007). Thus, whether expanding or receding, the lake would have prevented access to Obsidian Butte glass whenever the water level stood between 40 m bmsl and 12 m amsl.

Recently, Sutton (2011) proposed that the proto-Cahuilla (Patayan) cultures occupying the Peninsular Range and the northern Coachella Valley resulted from an eastward movement of people of Yuman ethnicity that spoke Takic languages from the inland areas of coastal Orange County and northern San Diego County (i.e., Phase I groups of the San Luis Rey Pattern of the Palomar Tradition). Sutton (2011:6) proposed that the impetus for this migration was the filling of Lake Cahuilla after circa 1070 B.P. Sutton identifies this eastward movement of people, and the concomitant introduction of new technologies and ideas to the region, as Peninsular I, II, and III phases of the Palomar Tradition (Sutton 2011:1–74).

3.2.6 Late Prehistoric Period
The MCA extended into the Late Prehistoric Period, ending about 550 B.P. The cultural trends and patterns of land-use that characterized the MCA, including that portion which extends into the earlier part of the Late Prehistoric Period, are discussed above. At the end of the MCA, however, and lasting throughout the ensuing Protohistoric Period (410–150 B.P.), a period of cooler temperatures and greater precipitation ushered in the Little Ice Age, during which time ecosystem productivity greatly increased, along with availability and predictability of water (Spaulding 2001).

It was during this period that Lake Cahuilla began to recede (Waters 1983). Groups associated with the Peninsular II phase of the Palomar Tradition in the northern Coachella Valley, dating from circa 750 to 300 B.P., are thought to have been the proto-Cahuilla (Sutton 2011:5).

Peninsular II is “proposed to reflect the changes in settlement and subsistence that were instituted to adapt to the fluctuations in Lake Cahuilla, prior to its ‘final’ desiccation” (Sutton 2011:42). Peninsular II material culture traits include the addition of Tizon Brown pottery, ceramic pipes, and few ceramic figurines; increased usage of Tumco Buff and Salton Buff pottery in lakeshore sites; use of glass from the Coso Volcanic Field, Obsidian Butte, and some unknown sources; and the addition of stone fish traps along the fluctuating shoreline of Lake Cahuilla. Additionally, the “Peninsular Funerary Complex” appeared during this phase, with secondary cremations placed in “containers,” along with associated mourning ceremonies. The Peninsular II phase ended with the final desiccation of Lake Cahuilla about 300 B.P. (Sutton 2011:5, 42).

3.3 ETHNOHISTORIC SETTING
The Cahuilla have been studied extensively by Dr. Lowell Bean and much of the following discussion is derived from Bean’s description of the Cahuilla in Volume 8 of the Handbook of North American Indians (Bean 1978:575–587).

The Cahuilla belong to nonpolitical, nonterritorial patrimoieties that governed marriage patterns, as well as patrilineal clans and lineages. Each clan, “political-ritual-corporate units” composed of three to 10 lineages, owned a large territory in which each lineage owned a village site with specific resource areas. Clan lineages cooperated in defense, in large communal subsistence activities, and in performing rituals. Clans were apt to own land in the valley, foothill, and mountain areas, providing them with the resources of many different ecological niches.

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In prehistoric times Cahuilla shelters are believed to have been dome shaped; after contact, they tended to be rectangular in shape. Cahuilla shelters were often made of brush, palm fronds, or arrowweed. Most of the Cahuilla domestic activities were performed outside the shelters within the shade of large, expansive ramadas.

The Cahuilla were, for the most part, hunting, collecting, harvesting, and protoagricultural peoples. As in most of California, acorns were a major staple, but the roots, leaves, seeds, and fruit of many other plants also were used. Fish, birds, insects, and large and small mammals were also available.

To gather and prepare these food resources, the Cahuilla had an extensive inventory of equipment, including bows and arrows, traps, nets, disguises, blinds, spears, hooks and lines, poles for shaking down pine nuts and acorns, cactus pickers, seed beaters, digging sticks and weights, and pry bars. In addition, the Cahuilla also had an extensive inventory of food processing equipment, including hammers and anvils, mortars and pestles, manos and metates, winnowing shells and baskets, strainers, leaching baskets and bowls, knives (made of stone, bone, wood, and carrizo cane), bone saws, and drying racks made of wooden poles to dry fish.

Mountain tops, unusual rock formations, springs, and streams are held sacred to the Cahuilla, as are rock art sites and burial and cremation sites. Addtionally, various birds are revered as sacred beings of great power and were sometimes killed ritually and mourned in mortuary ceremonies similar to those for important individuals. As such, bird cremation sites are considered sacred by the Cahuilla.

3.4 HISTORICAL SETTING
The following section presents a summary of the history of the California desert region based on the detailed review by von Till Warren and others (1981:85–105). Known information of historical events in and around the current Project area will be the focus.

Prior to 1820, little is known of historical developments within the Coachella Valley. In 1821, a party of Cocomaricopa Native Americans arrived at the San Gabriel Mission stating they had traveled from the Colorado River in only six days along the Cocomaricopa trail (von Till Warren 1981:85). The Cocomaricopa trail began east of Blythe and generally followed the present route of Interstate 10. The trail passed through the Chuckwalla Valley, through the Mecca-Indio area at the east end of the Coachella Valley, continued west through the Valley, and into the San Gorgonio Pass (northwest of the Project area). Within the Coachella Valley, the trail ran south of the Project area, near Mecca, and continued west and northwest to the Cahuilla village of Mauulmii (Toro), then turned north-northwest following the mountain alignments, as depicted on the Indio (1904) 30' USGS quadrangle. The same map (Indio 1904) depicts at least one historical road connecting numerous large Cahuilla village sites to the Cocomaricopa trail. It is possible that these historical road(s) were constructed following the long established Native American travel routes, as is the case with the Maricopa-Bradshaw route.

The Maricopa-Bradshaw route was established in the early 1850s, paralleling the old Cocomaricopa trail. The route was established to serve mining camps near La Paz, Arizona (von Till Warren et al. 1981:85). In addition, the U.S. Government promoted a railroad route to connect the east and west coasts in the 1850s. However, political, and economic considerations prevented the establishment of the Southern Pacific Railroad construction until Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 14
1877. The railroad traversed the western Colorado Desert, connecting the town of Yuma to the San Gorgonio Pass along the eastern shore of the Salton Sea.

Subsequently in 1852, Henry Washington and a small party of surveyors began the process of surveying and mapping the Colorado Desert. The process began with ascending the San Bernardino Mountains and establishing the SBBM, which is still in use today. Washington extended the line through uncharted territory, to the Colorado River during the period from 1854 to 1857 (von Till Warren 1981:94).

Additionally, in the 1850s, the U.S. Government sent Indian Commissioners into the southern California deserts. The Indian Commissioners were not authorized to make any commitments to Native Americans but did (illegally) set aside large tracts of land for reservations (von Till Warren 1981:94). Most of the designated reservation areas were never developed, but two areas (Torres Martinez and Agua Caliente [Palm Springs] reservations) were eventually set aside from the larger reserves delineated by the Indian Commission. After the Native American populations were confined to the reservations, the land was made available for ranching, mining, and other uses.

The desert regions of southern California were managed by the GLO and later the Department of Agriculture Grazing Department. The management of the desert during this period was largely non-existent until the passage of the Taylor Grazing Act of 1934. Even with the passage of the act, there was virtually no impact on the region. The first attempts of range management came when the desert was transferred to the control of the Bureau of Land management (BLM) in 1946. Since the transfer of management, the BLM has been evaluating lands for their “uses,” and classifying them for different types of management (von Till Warren et al. 1981:95).

Lack of water in much of the Colorado Desert discouraged farming, and agricultural productivity was only possible when large quantities of water could be imported. The Coachella Valley water table was relatively high, which allowed for the installation of artesian wells, supporting agricultural development prior to the importation of water. In the beginning of the twentieth century, farmers in the Coachella Valley planted date, fig, and grape acreage. As a result of the agricultural growth, towns were established in the region such as Indio, Thermal, Mecca, and Coachella. The development of agriculture in the area also resulted in the depletion of the water table within the valley. The depletions required alternative water sources and fueled the formation of the Coachella Valley Water District (CVWD) to promote water conservation and replenish groundwater storage. The Boulder Canyon Project Act of 1928 was passed, which utilized the bounty of the Colorado River to irrigate the Imperial (south) and Coachella valleys.

Large scale cooperation between the Imperial Irrigation District and CVWD resulted in the development of the All-American Canal and the Coachella Valley extension. A branch of the AllAmerican Canal, the Old Coachella Canal, extends 123.5 mi north to the northern end of the Coachella Valley, providing the first imported irrigation water to the region in 1949 (Nordland 1978). The original canal base and sides were lined with clay to prevent seepage, with the exception of the last 38 miles between North Shore and Lake Cahuilla, which was a concretelined aqueduct (Schaefer and Ghabhláin 2003:1, 32).

The Coachella Valley was a trading route that prehistorically connected the coast to the Colorado River. When the route was rediscovered by European explorers in the 1800s, it eventually became known as the primary access between the Los Angeles Basin and gold mines in Arizona, until the establishment of the Southern Pacific Railroad in 1877. The railroad Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 15
and the opening of public lands under the Homestead Act, the Desert Land Act, and other federal lands laws brought additional settlement to the Coachella Valley and what is now known as Cathedral City. Highway 111, which runs through Cathedral City, closely follows that original trade route.

Cathedral City was named for the nearby Cathedral Canyon. The first tract map was filed in 1925 in Riverside County after the land had been purchased from the Southern Pacific Railroad’s Land Company (Kaplan 2017). According to the City’s General Plan, the new town was “created to provide affordable low-to moderate-income housing” and “became known as the ‘blue-collar neighbor’ of Palm Springs” (Kaplan 2017). The original town site was on the alluvial fan created by Cathedral Canyon; the Project area is also on this alluvial fan. The Cathedral City Water Company and the Cathedral City Development Company were also established in 1925 and further contributed to the development of Cathedral City. Starting in the 1920s, Cathedral City, along with the rest of the Coachella Valley, worked to develop “a new industry that consisted of equestrian camps, resort hotels, and eventually country clubs” (Kaplan 2017). Between the 1930s and 1960s, Cathedral City established itself as an artist’s colony by supporting the work of many artists who came from all over the region to exhibit their works (Kaplan 2017).

In the 1940s and 1950s, Cathedral City served as a bedroom community to the military installations during World War II that were established in the area to support the war effort.

Additionally, during this time, infrastructure improvements were made, including the Coachella Canal in 1948 and 1949, which helped to supply and support the additional population that had settled in the area.

In the post-WWII era, Cathedral City had become one of the fastest growing communities in the Coachella Valley. Veterans were able to purchase homes in the city, as subdivisions were being developed rapidly. Cathedral City was the first community in Riverside County to be zoned under the County’s new general zoning ordinance for incorporated cities. It wasn’t until 1981 that Cathedral City was incorporated as the 18th city in Riverside County. 4 CULTURAL RESOURCES INVENTORY
On July 6, 2023, a literature review and records search was conducted at the EIC, housed at the University of California, Riverside. This inventory effort included the Project area and a 1-mi radius around the Project area, collectively termed the Project study area. The objective of this records search was to identify prehistoric or historical cultural resources that have been previously recorded within the study area during prior cultural resource investigations.

As part of the cultural resources inventory, PaleoWest staff also examined historical maps and aerial images to characterize the developmental history of the Project area and surrounding area. A summary of the results of the record search and background research are provided below.

4.1 PREVIOUS CULTURAL RESOURCES INVESTIGATIONS
The records search results indicate that no fewer than 13 previous investigations have been conducted and documented within the Project study area since 1977 (Table 4-1). None of the Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 16
studies encompassed any portion the Project area. As such, it appears that none of the Project area has been previously inventoried for cultural resources.

Table 4-1. Previous Cultural Investigations within the Project Study Area Report No. Year Author(s) Title
RI-00181 1978 Jennifer Taschek-Ball San Diego State University Foundation, San Diego State University.

RI-00284
RI-01129
1977
1979
Richard A. Weaver Cultural Resource Identification-Sundesert Nuclear Project.

Stanley R. Berryman and Mary
Lou Heuett
Final Report: Results of the Palm Springs Archaeological Survey Section 10, Township 4 South, Range 5 East.

RI-02210
RI-02719
1986
1990
J. Underwood, J. Cleland, C.M.

Wood, and R. Apple
Preliminary Cultural Resources Survey Report for the Us Telecom Fiber Optic Cable Project, From San Timoteo Canyon to Socorro, Texas: The California Segment.

Robert S. White An Archaeological Assessment of Tentative Tract 25550, A 70 Acre Parcel Located Adjacent to Da Vall Drive Between Cathedral City and Rancho Mirage, Riverside County, California.

RI-05563
RI-05950
2003
2003
Greig Parker and Christopher
Drover
Archaeological Survey for Cathedral City Heritage Park L.P. Parcel No. 670-110-034, Cathedral City, California.

Michael Hogan, Bai "Tom" Tang,
Josh Smallwood, Laura Hensley
Shaker, and Daniel Ballester
Identification and Evaluation of Historic Properties, APNs 673- 020-006, 673-030-004, 673-030-021, and 673-030-022, Dinah Shore Drive and Da Valle Drive, City of Cathedral City, Riverside County, California.

RI-06293 2004 Bai Tang, Michael Hogan, and
Matthew Wetherbee
Identification and Evaluation of Historic Properties, Assessor's Parcel Numbers 670-060-017, and -025, Cathedral City, Riverside County, California.

RI-07758
RI-09172
RI-09367
2008
2014
2015
Bai "Tom" Tang Historic and Archaeological Property Survey Report (District: 08, RIV-CTH/ PLHL, PM 5430, EA: Ramon Road).

Bai "Tom" Tang and Michael
Hogan
Historical/Archaeological Resources Survey Report; North Gate Community Church; Assessor's Parcel No. 670-110-042.

Bai "Tom" Tang, Michael Hogan,
Deirdre Encarnacion, and Nina
Gallardo
Historical/Archaeological Resources Survey Report Ramon 14 Project City of Cathedral City Riverside County, California.

RI-09886
RI-10838
2016
2010
Cheri Flores Addendum to Historical and Archaeological Resources Survey.

Diane F. Bonner Cultural Resources Record Search and Archaeological Survey Results for the proposed Royal Street Communications,
California, LLC, Site LA3615A (Cathedral City Soccer Park) located at 69400 30th Avenue, Cathedral City, Riverside County, California 92234.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 17

4.2 CULTURAL RESOURCES REPORTED WITHIN 1 MILE OF

THE PROJECT AREA
The records search indicated that no fewer than four cultural resources have been previously documented within the Project study area. These resources were all historic period isolated finds composed of sanitary cans. None of these resources are within the Project area. These resources are listed in Table 4-2.

Table 4-2. Previously Recorded Cultural Resources within the Project Study Area Primary No. Trinomial Age Type Description
P-33-010953
P-33-010954
P-33-010956
P-33-010957
–
–
–
–
Historic
Historical
Historic
Historic
Isolate
Isolate
Isolate
Isolate
Two sanitary cans
Sanitary can
Sanitary can
Six sanitary cans, possibly a single “6-pack”

4.3 ADDITIONAL SOURCES
Additional sources consulted during the cultural resource literature and data review in July 2023 include the National Register of Historic Places, the Office of Historic Preservation Archaeological Determinations of Eligibility, and the Office of Historic Preservation Built Environment Resources Directory. There are no listed cultural resources recorded within the Project area or within 1 mi of the Project area.

Archival research also conducted in July 2023 on the Project site includes a review of BLM GLO records, historic topographic maps, and aerial images. The GLO records indicate that the Project area was part of a land patent that was issued in June 1905 to the Southern Pacific Railroad Company (BLM 2023); the patent included the entirety of Section 15, T4S, R5E, SBBM.

Historical topographic maps were consulted, including Indio, California (1904) 30-minute; Santa Ana, California (1947) 1 × 2 degree; Edom, California (1941) 15-minute; and Cathedral City, California (1958 and 1972) 7.5-minute USGS quadrangles. Additionally, historical aerials from NETROnline dated to 1959, 1972, 1977, 1979, 1996, 2005, 2012, and 2020 were reviewed. The only notable feature present on any of the topographic maps is Date Palm Drive, which first appears in on the 1972 Cathedral City 7.5-minute map following its present alignment. Although areas within the vicinity have been subject to development over the years, aerial photographs indicate that the Project area has never been developed, except for the addition of an unnamed asphalt road in the southern portion of the Project area that first appears in 2005 aerial imagery.

4.4 BURIED SITE SENSITIVITY ASSESSMENT
PaleoWest examined geological and geomorphic information to assess the potential of the Project area to contain significant buried archaeological deposits. The Project area is in the upper Coachella Valley, in its central portion between the Whitewater River and the former bed Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 18
of Mission Creek, which is also an abandoned channel of the Whitewater River. Deposits underlying the Project area are generally fine-to-gravelly valley fills derived from flooding and debris flows down marginal alluvial fans (Lancaster et al. 2012). During wetter periods of the Holocene, this area would have been subject to periodic overbank floods of the Whitewater River. Subsequently, the area was covered by aeolian deposits. In general, deposits in this area consists of a series of interbedded alluvial and aeolian strata (Soil Survey Staff 2023). The area as a whole is moderately sensitive for buried sites. If present, buried sites will have a high degree of preservation due to low energy of deposit. Depth of deposits could be significant.

4.5 NATIVE AMERICAN COORDINATION
PaleoWest contacted the Native American Heritage Commission (NAHC) on February 28, 2023 for a review of the SLF. The objective of the SLF search was to determine if the NAHC had any knowledge of Native American cultural resources (e.g., traditional use or gathering area, place of religious or sacred activity, etc.) within the immediate vicinity of the Project area. The NAHC responded on March 2, 2023, stating that the SLF was completed with negative results.

However, the NAHC suggested that 18 individuals representing 12 Native American tribal groups be contacted to elicit information regarding cultural resource issues related to the proposed Project (Appendix A). PaleoWest sent outreach letters to the 12 recommended tribal groups on July 19, 2023. These letters were followed up by phone calls on August 2, 2023.

To date six responses have been received:

The Quechan Historic Preservation Department sent an email indicating the Tribe does not wish to comment on the Project, stating they defer to more local tribes.

The Augustine Band of Cahuilla Indians sent an email indicating that the tribe is unaware of any specific resources that might be impacted by the Project and requesting contact if any resources are discovered during the Project.

The Agua Caliente Band of Cahuilla Indians (ACBCI) sent an email indicating that the Project is within the Traditional Use Area of the tribe and requesting: 1) a copy of the records search, with associated survey reports from the information center; 2) copies of all cultural resource documentation generated by the Project; 3) the presence of an ACBCI-approved monitor during all ground disturbing activities; and 4) contacting the ACBCI Tribal Historic Preservation Officer before future surveys in the area, as the tribe is interested in participating.

The Morongo Band of Mission Indians representative reached by phone stated that they need to confer further with staff and will send an official response.

The Santa Rosa Band of Cahuilla Indians representative reached by phone indicated that, if Chair Redner had not responded to the emailed letter, that the tribe has no comment on the Project.

The Torres-Martinez Desert Cahuilla Indians representative reached by phone requested that the original emailed letter be forwarded to facilitate future comment.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 19
5 FIELD INVESTIGATION

5.1 FIELD METHODS
A cultural resource survey of the Project area was completed by PaleoWest Archaeologist Darlene Deppe, M.A., on July 17, 2023. The fieldwork effort included an intensive pedestrian survey of the Project area, totaling 7.1 acres. The intensive pedestrian survey was conducted by walking a series of parallel north-south transects spaced at 10–15-m (33–49-ft) intervals. The archaeologist carefully inspected all areas within the Project area likely to contain or exhibit sensitive cultural resources to ensure discovery and documentation of any visible, potentially significant cultural resources within the Project area.

Prehistoric site indicators may include areas of darker soil with concentrations of ash, charcoal, bits of animal bone (burned or unburned), shell, flaked stone, ground stone, or even human bone. Historical site indicators may include fence lines, ditches, standing buildings, objects or structures such as sheds, or concentrations of materials at least 45 years in age, such as domestic refuse (e.g., glass bottles, ceramics, toys, buttons or leather shoes), refuse from other pursuits such as agriculture (e.g., metal tanks, farm machinery parts, horse shoes), or structural materials (e.g., nails, glass window panes, corrugated metal, wood posts or planks, metal pipes and fittings, railroad spurs, etc.).

5.2 FIELD RESULTS
The Project area is a vacant, flat parcel within a mostly-developed area of Cathedral City (Figure 5-1). The west side of the property is bounded by Date Palm Drive, the east side is bounded by residential parcels, and the north and south sides of the property are bounded by the Northgate Community Church and a small shopping center, respectively. Vegetation within the Project area is very sparse and includes scattered creosote bushes. Ground visibility in the Project area is excellent (90–100%). Surface soils within the parcel are composed of soft sand.

Noted disturbances include an asphalt road remnant running east-west through the southern portion of the Project area (Figure 5-2), and modern glass and refuse distributed throughout.

No archaeological or built-environment resources were identified in the Project area during the survey.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 20
Figure 5-1. Overview of the Project area, facing north.

Figure 5-2. Overview of southern portion of the Project area cut by a road, facing east.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 21
6 MANAGEMENT RECOMMENDATIONS
As a result of the cultural resource records search and survey, no archaeological or historic period built-environment resources were identified in the Project area. Geological and geomorphic information indicates that the Project area has moderate potential to contain significant buried archaeological remains. As such, the Project area appears to be moderately sensitive for buried cultural resources. PaleoWest recommends that an archaeological monitor be retained to observe ground-disturbing activities during the initial phases of construction. If the qualified archaeologist determines that the construction activities have little or no potential to impact cultural resources (e.g., excavations are within previously disturbed, non-native soils, or within soil formations not expected to yield cultural resources deposits), then monitoring may be reduced or eliminated.

In the event that potentially significant cultural materials are encountered during Project-related ground disturbing activities, all work should be halted in the vicinity of the discovery until a qualified archaeologist can visit the site of discovery and assess the significance of the archaeological resource. In addition, Health and Safety Code 7050.5, CEQA 15064.5(e), and Public Resources Code 5097.98 mandate the process to be followed in the unlikely event of an accidental discovery of any human remains in a location other than a dedicated cemetery.

Finally, should additional actions be proposed outside the currently defined Project area that have the potential for additional subsurface disturbance, further cultural resource management may be required.

Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 22
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Cleland, James H.
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1976 Marsh, Dune, and Archaeological Chronology, Ash Meadows, Amargosa Desert, Nevada. In Holocene Environmental Change in the Great Basin, edited by R. Elston, Cultural Resource Investigation in Support of the Date Palm and Rosemount Project, Cathedral City, Riverside County, California | 24
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Mix, A.C.
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Appendix A.

Native American Coordination
Appendix A | 1
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Appendix A | 2
T: 626.408.8006
F: 602.254.6280
[email protected]

LOS ANGELES, CALIFORNIA
55 E. Huntington Dr., Suite 238
Arcadia, CA 91006
August 9, 2023
Rich Malacoff
Principal Planner
The Altum Group
44-600 Village Court Suite 100
Palm Desert, California 92260
Transmitted via email to [email protected] RE: Paleontological Resource Assessment for the Date Palm and Rosemount Storage Project, City of Cathedral City, Riverside County, California
Dear Rich Malacoff,
At the request of The Altum Group, PaleoWest, LLC (PaleoWest) conducted a paleontological resource assessment in March 2023 for the Date Palm and Rosemount Storage Project (Project) in the city of Cathedral City, Riverside County, California. The goal of the assessment was to identify the geologic units that may be impacted by the development of the Project, determine the paleontological sensitivity of geologic units within the Project area, assess the potential for impacts to paleontological resources from the development of the Project, and recommend mitigation measures to avoid or mitigate impacts to scientifically significant paleontological resources, as necessary.

This paleontological resource assessment included a fossil locality records search conducted by the Western Science Center (WSC) in Hemet, California. The records search was supplemented by a review of existing geologic maps and primary literature regarding fossiliferous geologic units within the proposed Project vicinity and region. This technical memorandum, which was written in accordance with the guidelines set forth by the Society of Vertebrate Paleontology (SVP, 2010), has been prepared to support environmental review under the California Environmental Quality Act (CEQA); Cathedral City (City) is the Lead Agency for CEQA compliance.

PROJECT LOCATION AND DESCRIPTION
The Project area consists of a proposed 1.3-acre storage warehouse that is part of a larger development of potential retail and parking space that sits on approximately 7.1 acres northeast of the intersection of McCallum Way and Date Palm Drive (Figure 1). The Project area is within Section 15 of Township 4 South, Range 5 East, Zone 11, as depicted on the 1977 Cathedral City, California 7.5-minute Quadrangle from the U.S. Geological Survey (USGS) topographic quadrangle maps (Figure 1).

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California 1 Figure 1. Project area.

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 2

REGULATORY CONTEXT
Paleontological resources (i.e., fossils) are considered nonrenewable scientific resources because once destroyed, they cannot be replaced. As such, paleontological resources are afforded protection under various federal, state, and local laws and regulations. Laws pertinent to this Project are discussed below.

STATE LAWS AND REGULATIONS
California Environmental Quality Act
CEQA requires that public agencies and private interests identify the potential environmental consequences of their projects on any object or site of significance to the scientific annals of California (Division I, California Public Resources Code [PRC] Section 5020.1 [b]). Appendix G in Section 15023 provides an Environmental Checklist of questions (PRC 15023, Appendix G, Section VII, Part f) that includes the following: “Would the project directly or indirectly destroy a unique paleontological resource or site or unique geological feature?” CEQA does not define “a unique paleontological resource or site.” However, the SVP has provided guidance specifically designed to support state and federal environmental review. The SVP broadly defines significant paleontological resources as follows (SVP, 2010):
“Fossils and fossiliferous deposits consisting of identifiable vertebrate fossils, large or small, uncommon invertebrate, plant, and trace fossils, and other data that provide taphonomic, taxonomic, phylogenetic, paleoecologic, stratigraphic, and/or biochronologic information. Paleontological resources are considered to be older than recorded human history and/or older than middle Holocene (i.e., older than about 5,000 radiocarbon years).”
Significant paleontological resources are determined to be fossils or assemblages of fossils that are unique, unusual, rare, diagnostically important, or are common but have the potential to provide valuable scientific information for evaluating evolutionary patterns and processes, or which could improve our understanding of paleochronology, paleoecology, paleophylogeography, or depositional histories. New or unique specimens can provide new insights into evolutionary history; however, additional specimens of even well represented lineages can be equally important for studying evolutionary pattern and process, evolutionary rates, and paleophylogeography. Even unidentifiable material can provide useful data for dating geologic units if radiometric dating is possible. As such, common fossils (especially vertebrates) may be scientifically important, and therefore considered significant.

California Public Resources Code
Section 5097.5 of the Public Resources Code (PRC) states:
“No person shall knowingly and willfully excavate upon, or remove, destroy, injure or deface any historic or prehistoric ruins, burial grounds, archaeological or vertebrate paleontological site, including fossilized footprints, inscriptions made by human agency, or any other archaeological, paleontological or historical feature, situated on public lands, except with the express permission of the Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 3 public agency having jurisdiction over such lands. Violation of this section is a misdemeanor.”
As used in this PRC section, “public lands” means lands owned by, or under the jurisdiction of, the state or any city, county, district, authority, or public corporation, or any agency thereof.

Consequently, public agencies are required to comply with PRC 5097.5 for their own activities, including construction and maintenance, as well as for permit actions (e.g., encroachment permits) undertaken by others.

LOCAL
The County of Riverside (2015) provides specific protections for paleontological resources identified within its boundaries. These protections include the SABER (Safeguard Artifacts Being Excavated in Riverside County) policy. The SABER Policy, enacted in October 2011 by the Riverside County Board of Supervisors, requires that any paleontological resources found or unearthed in the county of Riverside be curated at the Western Science Center.

Cathedral City is the Lead Agency for the Project. Protections of paleontological resources fall under the Cathedral City Environmental Impact Report (EIR) for the City of Cathedral City General Plan Update (2019a) and the General Plan Update (Cathedral City, 2019b).

Cathedral City Draft Environmental Impact Report 2.8.6:
“The City is not known to contain unique paleontological or geologic features. The majority of City soils are composed of recently deposited alluvium which has a low potential to contain paleontological resources. The planning area is largely developed south of I-10, and the urban landscape is a mix of residential, commercial, industrial, and other development, as well as roadways, utilities, and other infrastructure. Any paleontological or geologic sites or resources would likely have been disturbed already by urban development. Land north of I-10 is generally undeveloped and could harbor unknown resources.”
Cathedral City defers to CEQA regulations regarding the oversight and protection of paleontological resources as defined within the Draft Environmental Impact Report Section

2.8.6:
“Ground-disturbing activities could have the potential to damage or destroy paleontological resources that may be present below the ground surface. Any future projects that would be allowed under the General Plan Update would be subject to CEQA analysis on a project-by-project basis to identify potential impacts and establish appropriate mitigation measures, as needed. Overall, impacts will be less than significant, and no mitigation is required.”

PALEONTOLOGICAL RESOURCE POTENTIAL
Absent specific agency guidelines, most professional paleontologists in California adhere to the guidelines set forth by SVP (2010) to determine the course of paleontological mitigation for a given project. These guidelines establish protocols for the assessment of the paleontological resource potential of underlying geologic units and outline measures to mitigate adverse impacts that could result from project development. Using baseline information gathered during Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 4 a paleontological resource assessment, the paleontological resource potential of the geologic unit(s) (or members thereof) underlying a project area can be assigned to one of four categories defined by SVP (2010). Although these standards were written specifically to protect vertebrate paleontological resources, all fields of paleontology have adopted the following guidelines.

HIGH POTENTIAL (SENSITIVITY)
Rock units from which significant vertebrate or significant invertebrate fossils or significant suites of plant fossils have been recovered have a high potential for containing significant nonrenewable fossiliferous resources. These units include sedimentary formations and some volcanic formations which contain significant nonrenewable resources.

LOW POTENTIAL (SENSITIVITY)
Sedimentary rock units that are potentially fossiliferous but have not yielded fossils in the past or contain common and/or widespread invertebrate fossils of well documented and understood taphonomic, phylogenetic species and habitat ecology. Reports in the paleontological literature or field surveys by a qualified vertebrate paleontologist may allow determination that some areas or units have low potentials for yielding significant fossils prior to the start of construction. Generally, these units will be poorly represented by specimens in institutional collections and will not require protection or salvage operations. However, as excavation for construction gets underway it is possible that significant and unanticipated paleontological resources might be encountered and require a change of classification from Low to High Potential and, thus, require monitoring and mitigation if the resources are found to be significant.

UNDETERMINED POTENTIAL (SENSITIVITY)
Specific areas underlain by sedimentary rock units for which little information is available have undetermined fossiliferous potentials. Field surveys by a qualified vertebrate paleontologist to specifically determine the potentials of the rock units are required before programs of impact mitigation for such areas may be developed.

NO POTENTIAL
Rock units of metamorphic or igneous origin are commonly classified as having no potential for containing significant paleontological resources.

METHODS
To assess whether a particular area has the potential to contain significant fossil resources at the subsurface, it is necessary to review published geologic mapping to determine the geology and stratigraphy of the area. Geologic units are considered “sensitive” for paleontological resources if they are known to contain significant fossils anywhere in their extent. Therefore, a search of pertinent local and regional museum repositories for paleontological localities within and nearby the Project area is necessary to determine whether fossil localities have been previously discovered within a particular rock unit. For this Project, a formal museum records Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 5 search was conducted in March 2023 at the WSC (Stoneburg, 2023). An informal records search of the Paleobiology Database (PBDB) was also conducted in March 2023.

RESOURCE CONTEXT

GEOLOGIC SETTING
The Project area is in the Coachella Valley within the Colorado Desert geomorphic province in southern California. The Colorado Desert geomorphic province extends from the Transverse Ranges to the north and northeast, the Peninsular Range on the west, and the Gulf of California to the south. Dominant features within the Colorado Desert include the Salton Trough, the Colorado River, and the Orocopia, Chocolate, Palo Verde, and Chuckwalla Mountains. The Coachella Valley is within the Salton Trough—a large structural depression that extends from the San Gorgonio Pass in the north to the Gulf of Mexico in the south (Norris and Webb, 1976).

One of the dominant fossiliferous sediments within the Coachella Valley are the Pleistocene to Holocene Lake Cahuilla sand and silt lacustrine deposits which are overlain by younger Holocene alluvial fan sand. The depth of the contact between the Holocene fan and older Lake Cahuilla deposits in the Project area is unknown; however, is unlikely to be encountered by ground disturbance within the Project area.

SITE SPECIFIC GEOLOGY AND PALEONTOLOGY
According to the Geologic Map of the Thousand Palms & Lost Horse Mountain 15-minute quadrangle (Dibblee and Minch, 2008), the Project area is immediately underlain by loose, fine Holocene sands that were deposited by prevailing winds as dunes or thin cover over underlying deposits (Qs) of the Coachella Valley (Figure 2). Further, the nearest deposits that have the potential to directly underlay the Holocene dune deposits (Qs) encountered at the surface of the site, consist of either alluvial sand and gravel deposits of valley areas (Qa) or of stream/creek washes (Qg) (Dibblee and Minch, 2008; Figure 2). Alluvial fans typically have low fossil preservation potential due to the energy and clast distribution of the rheology of their formative depositional events (Woodburne, 1987). Late Pleistocene to Holocene sedimentary deposits derived from ancient Lake Cahuilla have proven to yield scientifically significant mollusk shells within the Coachella Valley (Whistler et al., 1995). However, these sediments are restricted farther to the south and are not expected to be encountered within the Project area (Dibblee, 1954).

According to the WSC museum records search, there are no records of significant vertebrate fossil specimens within the Project area or immediate vicinity (Stoneburg, 2023). Although the alluvial deposits within the area have a high preservation potential, any sediments likely to be encountered would be far too young (Stoneberg, 2023). Further review of online PBDB (2023) locality record databases did not produce any additional fossil records within or within one-mile of the Project area.

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 6 Figure 2. Geologic map of the Project area.

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 7

FINDINGS
Based on the literature review and museum records search results, the paleontological sensitivity of the Project area was determined in accordance with the SVP’s (2010) sensitivity scale and in consultation with the County of Riverside Paleontological Sensitivity Map (2015). Surficial Quaternary deposits in the Project area consist of sediments deposited as dunes of loose, fine sand (Qs), which have a low potential to bear fossils and a low paleontological resource sensitivity. These sediments may be underlain at an unknown depth by older Pleistocene deposits that have proven to yield significant vertebrate fossils in the vicinity of the Project area and elsewhere (Stoneburg, 2023). The Project will most likely involve construction-related ground disturbing activities in Holocene sediments and no vertebrate fossils from Holocene or Pleistocene sediments have been found in the surrounding Project area. As a result, the potential for encountering significant fossil resources during Project development is low; therefore, impacts to paleontological resources are not anticipated and no further paleontological mitigation is recommended at this time.

RECOMMENDATIONS
In general, the potential for a given project to result in negative impacts to paleontological resources is directly proportional to the amount of ground disturbance associated with the project; thus, the higher the amount of ground disturbances within geological deposits with a known paleontological sensitivity, the greater the potential for negative impacts to paleontological resources. Since this Project entails the excavation for the proposed new development, new ground disturbances are anticipated. The underlying sediment is likely to be Holocene near the surface and Project-related ground disturbances are not anticipated to impact paleontological resources at shallow depth.

At this time, PaleoWest does not recommend paleontological monitoring for this Project. In the event that a fossil discovery is made during the course of Project development, then in accordance with SVP (2010) guidelines, a qualified professional paleontologist should be retained to examine the find and to determine if further paleontological resources mitigation is warranted.

Thank you for contacting PaleoWest for this Project. If you have any questions, please do not hesitate to contact us.

Sincerely,

PALEOWEST
Matthew Witte, Ph.D. | Associate Paleontologist
Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 8

REFERENCES
Alles, D.L., 2011, Geology of the Salton Trough: Western Washington University, unpublished manuscript, 31 p., http://fire.biol.wwu.edu/trent/alles/GeologySaltonTrough.pdf.

Accessed Nowember 2016
Arnal, R.E., 1961, Limnology, Sedimentation, and Microorganisms of the Salton Sea, California:

Geological Society of America Bulletin, v. 72, no. 3. p. 427–478.

Cathedral City, 2019a, Draft Environmental Impact Report for the City of Cathedral City General Plan Update, Cathedral City, California. SCH# 2018081012.

Cathedral City, 2019b, Cathedral City General Plan of 2040: Imagine 2040. Cathedral City California, https://www.cathedralcity.gov/services/community-developmentdepartment/gpupdate. Accessed March 2023.

County of Riverside, 2015, Environmental Impact Report No. 521. Public Review Draft:

Electronic document, http://planning.rctlma.org/Portals/0/genplan/general_plan_2015/ DEIR521/04-09_Cultural AndPaleoResrcs.pdf.

Dibblee, T. W., Jr., 1954, Geology of the Imperial Valley region, California. Jahns, R. H. (ed.) Geology of Southern California, California Division of Mines and Geol. Bull. 170: 21-28.

Dibblee, T.W., and Minch, J.A., 2008, Geologic map of the Thousand Palms & Lost Horse Mountain 15 minute quadrangles, Riverside County, California: Dibblee Geological Foundation, Dibblee Foundation Map DF-372, scale 1:62,500.

Deméré, T.A., 2002, Silent Beaches – Ancient Lake Cahuilla and its geologic setting:

Biodiversity Research Center of the Californias, San Diego Natural History Museum, http://www.sdnhm.org/archive/research/paleontology/lakecahuilla.html (accessed November 2022)
Norris R.M., 1979, Lake Cahuilla High Shorelines. In Rifting, Transpression, and Neotectonics in the Mecca Hills, Salton Trough, edited by A. G. Sylvester. Fall Field Trip Guide Book, September 25–26, 1999. Society for Sedimentary Geology, Pacific Section Norris, R.M., and Webb, R.W., 1976, Geology of California. New York: John Wiley and Sons, Inc. Waters 1983.

Paleobiology Database (PBDB), 2023, Paleobiology Database Specimen Search. Retrieved from ucmpdb.berkeley.edu. Accessed March 2023.

Society of Vertebrate Paleontology (SVP), 2010, Standard Procedures for the Assessment and Mitigation of Adverse Impacts to Paleontological Resources. Society of Vertebrate Paleontology Impact Mitigation Guidelines Revision Committee.

Stoneburg, B., 2023, Paleontological Resources for the Date Palm & Rosemount Storage Project, Riverside County, California.

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 9 United States Geologic Survey (USGS), 1977, 7.5-minute Quadrangle of Cathedral City, CA, scale 1:24,000.

Waters, M.R., 1983, Late Holocene lacustrine chronology and archaeology of ancient Lake Cahuilla, California: Quaternary Research, v. 19, no. 3, p. 373–387.

Whistler, D.P., Lander, E.B., and Roeder, M.A., 1995, A diverse record of microfossils and fossil plants, invertebrates, and small vertebrates from the late Holocene Lake Cahuilla beds, Riverside County, California in Remeika, P., and Sturz, V., eds., Paleontology and Geology of the Western Salton Trough Detachment, Anza-Borrego Desert State Park, California: San Diego Geological Society.

Woodburne, M.O., 1987, Cenozoic Mammals of North America: Geochronology and Biostratigraphy. University of California Press, p. 336.

Paleontological Resource Assessment Date Palm and Rosemount Storage Facility Riverside County, California | 10 Augustine BAND OF CAHUILLA INDIANS
84-001 AVENUE 54 COACHELLA, CA 92236 | T: 760-398-4722 F: 760-369-7161 TRIBAL CHAIRPERSON: AMANDA AUGUSTINE TRIBAL TREASURER: William Vance TRIBAL COUNCIL MEMBER: RONNIE VANCE
Date: 01/23/2024
Dear: Sandra Molina
Development Services
Deputy Director
SUBJECT: Tribal Consultation Pursuant to SB 18
Specific Plan Amendment 99-58-A/CUP 23-005 Date Palm /Rosemount Storage Project, City of Cathedral City
Thank you for the opportunity to offer input concerning the development of the above-identified project. We appreciate your sensitivity to the cultural resources that may be impacted by your project and the importance of these cultural resources to the Native American peoples that have occupied the land surrounding the area of your project for thousands of years. Your invitation to consult on this project is greatly appreciated.

At this time, we are unaware of specific cultural resources that may be affected by the proposed project, however, in the event, you should discover any cultural resources during the development of this project please get in touch with our office immediately for further evaluation.

Very truly yours,
Jacobia Kirksey, Tribal Operation Specialist
03-007-2023-002 February 14, 2024
[VIA EMAIL TO:[email protected]]
City of Cathedral City
Ms. Sandra Molina
68700 Avednia Lalo Guerrero
Cathedral City, CA 92234
Re: Rosemount Storage
Dear Ms. Sandra Molina,
The Agua Caliente Band of Cahuilla Indians (ACBCI) appreciates your efforts to include the Tribal Historic Preservation Office (THPO) in the Date Palm and Rosemount Storage project.

The project area is not located within the boundaries of the ACBCI Reservation. However, it is within the Tribe’s Traditional Use Area. For this reason, the ACBCI THPO requests the following:
*Formal government to government consultation under California Senate Bill 18 (SB-18).
*Formal government to government consultation under California Assembly Bill No. 52 (AB-52).
*The presence of an approved Agua Caliente Native American Cultural Resource Monitor(s) during any ground disturbing activities (including archaeological testing and surveys). Should buried cultural deposits be encountered, the Monitor may request that destructive construction halt and the Monitor shall notify a Qualified Archaeologist (Secretary of the Interior’s Standards and Guidelines) to investigate and, if necessary, prepare a mitigation plan for submission to the State Historic Preservation Officer and the Agua Caliente Tribal Historic Preservation Office. *Please provide the Initial Study when available.

Again, the Agua Caliente appreciates your interest in our cultural heritage. If you have questions or require additional information, please call me at (760) 423-3485. You may also email me at [email protected].

Cordially,
Xitlaly Madrigal
Cultural Resources Analyst
Tribal Historic Preservation Office

AGUA CALIENTE BAND

OF CAHUILLA INDIANS
Appendix D
Noise Impact Study
Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Prepared for:

Mr. Stephen Nieto
The Altum Group
44-600 Village Court Suite 100
Palm Desert, CA 92260
Prepared by:

MD Acoustics, LLC
Robert Pearson
1197 Los Angeles Ave, Ste C-256
Simi Valley, CA 93065
Date: 3/4/2024
Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Table of Contents

TABLE OF CONTENTS

1.0 2.0
Introduction ..................................................................................................................................1

1.1 1.2

1.3 Purpose of Analysis and Study Objectives
Site Location and Study Area
Proposed Project Description
1 1
1 Fundamentals of Noise .................................................................................................................6

2.1 2.2

2.3 2.4

2.5 2.6

2.7 2.8

2.9 Sound, Noise, and Acoustics
Frequency and Hertz
Sound Pressure Levels and Decibels
Addition of Decibels
Sensitive Receptors
Human Response to Changes in Noise Levels
Noise Descriptors
Traffic Noise Prediction
Sound Propagation
6 6
6 6
7 7
7 9
9 3.0

4.0 Ground-Borne Vibration Fundamentals ......................................................................................10

3.1 3.2
Vibration Descriptors
Vibration Perception
10 10
Regulatory Setting.......................................................................................................................12

4.1 4.2

4.3 Federal Regulations
State Regulations
City of Cathedral City Noise Regulations
12 12
13 5.0 Study Method and Procedure .....................................................................................................18

5.1 5.2

5.3 5.4

5.5 Noise Measurement Procedure and Criteria
Noise Measurement Locations
SoundPLAN Noise Model (Operational Noise)
Traffic Noise Prediction Modeling
Construction Noise Modeling
18 18
18 19
21 6.0

7.0 Existing Noise Environment.........................................................................................................22 Future Noise Environment Impacts and Mitigation ....................................................................24

7.1 7.2
Off-Site Traffic Noise Impact
On-Site Traffic Noise Impact
24 25

8.0 Construction Noise and Vibration Impacts..................................................................................30

8.1 8.2
Construction Noise
Construction Vibration
30 31

9.0 CEQA Analysis .............................................................................................................................34

10.0 References ..................................................................................................................................36 MD Acoustics, LLC
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City of Cathedral City, CA Table of Contents

LIST OF APPENDICES
Appendix A: Field Measurement Data
Appendix B: SoundPLAN Noise Modeling Data
Appendix C: FHWA Roadway Noise Modeling Worksheets
Appendix D: Construction Noise Modeling Output
Appendix E: Construction Vibration Modeling Output

LIST OF EXHIBITS
Exhibit A:

Exhibit B:

Exhibit C:

Exhibit D:

Exhibit E:

Exhibit F:

Exhibit G:

Exhibit H:

Location Map....................................................................................................................3 Site Plan Alternative 1 ......................................................................................................4 Site Plan Alternative 2 ......................................................................................................5 Typical A-Weighted Noise Levels......................................................................................6 Land Use Compatibility Guidelines .................................................................................13 Measurement Locations.................................................................................................23 Operational Noise Levels Alternative 1...........................................................................28 Operational Noise Levels Alternative 2...........................................................................29

LIST OF TABLES
Table 1: Decibel Changes and Loudness....................................................................................................7 Table 2: Allowable Exterior Noise Level ..................................................................................................16 Table 3: SoundPLAN Modeling Assumptions ..........................................................................................19 Table 4: Roadway Parameters and Vehicle Distribution .........................................................................20 Table 5: Long-Term Noise Measurement Data for (LT1) (dBA)1 ..............................................................22 Table 6: Alternative 1 Existing Scenario - Noise Levels Along Roadways (dBA CNEL)..............................24 Table 7: Alternative 2 Existing Scenario - Noise Levels Along Roadways (dBA CNEL)..............................25 Table 8: Alternative 1 Operational Noise Levels (dBA, Leq) ....................................................................26 Table 9: Alternative 2 Operational Noise Levels (dBA, Leq) ....................................................................27 Table 10: Typical Construction Equipment Noise Levels1........................................................................30 MD Acoustics, LLC
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City of Cathedral City, CA Table of Contents
Table 11: Construction Noise Level by Phase (dBA, Leq).........................................................................31 Table 12: Guideline Vibration Damage Potential Threshold Criteria.......................................................32 Table 13: Vibration Source Levels for Construction Equipment..............................................................33 MD Acoustics, LLC
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Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Introduction

1.0 Introduction

1.1 Purpose of Analysis and Study Objectives
This noise assessment was prepared to evaluate the potential noise impacts for the project study area and to recommend noise mitigation measures, if necessary, to minimize the potential noise impacts. The assessment was conducted and compared to the noise standards set forth by the Federal, State, and Local agencies. Consistent with the City’s Noise Guidelines, the project must demonstrate compliance to the applicable noise criteria as outlined within the City of Cathedral City Noise Element and Municipal Code.

The following is provided in this report:
•
•
•
•
•
A description of the study area and the proposed project; Information regarding the fundamentals of noise;
A description of the local noise guidelines and standards; An analysis of traffic noise impacts to the sensitive receptors and the project site; and An analysis of construction noise impacts.

1.2 Site Location and Study Area
The project site is located on the southeast corner of Date Palm Drive and Rosemount Road in the City of Cathedral City, as shown in Exhibit A. The site is currently zoned as Planned Community Commercial by the City of Cathedral City. The project borders multifamily residential uses to the east, commercial uses to the south, Date Palm Drive to the west with commercial uses further, and Rosemount Road to the north with vacant land further.

1.3 Proposed Project Description
The proposed Project includes the development of approximately seven (7) acres located in the city of Cathedral City, east of Date Palm Drive, between Rosemount Road to the north and McCallum Way to the south. The project will require a recommendation from the Planning Commission and for the City Council to take final action on an entitlement and legislative action for parcels including APN: 670-110- 48, 49, 50, 51, 52, 53, & 56. The proposed project includes the below:

A Specific Plan Amendment to create Planning Unit 4 which would allow the indoor mini-storage use and a 50,000 square foot grocery store as well as changes to the development code, new streamlined architectural standards, and updated list of permitted and conditional land uses.

The Mitigated Negative Declaration was processed at full buildout so that future entitlements would not have to obtain separate Mitigated Negative Declarations. At full buildout the project could include either 1 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Introduction
of two scenarios: retail uses with a 2-story indoor mini-storage facility, or a grocery store up to 50,000 square feet, 2-story indoor mini-storage facility, and retail uses. The project is currently being proposed as a phased project and each future proposal would require its own entitlement consistent with the Mitigated Negative Declaration. The Design Review only includes the indoor mini-storage facility, underground retention basin, and a minimum of 12 spaces for on-site parking.

Scenario two would include the two (2) story 115,054 square feet (sf) at 57,527 sf per floor, climatecontrolled self-storage facility with associated retail, office, and loading Units and one (1) grocery store/big box building with a maximum Unit of 50,000 sf, and a retail building with an Unit of 4,725 sf.

Both alternatives will have on-site landscaping, on-site parking, signage, low walls, along frontage, and underground retention for on-site water retention.

Exhibit C demonstrates the site plan for the project.
2 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Exhibit A
Location Map
Site
2 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Exhibit B
Site Plan Alternative 1
3 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Exhibit C
Site Plan Alternative 2
4 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Fundamentals of Noise

2.0 Fundamentals of Noise
This section of the report provides basic information about noise and presents some of the terms used within the report.

2.1 Sound, Noise, and Acoustics
Sound is a disturbance created by a moving or vibrating source and is capable of being detected by the hearing organs. Sound may be thought of as mechanical energy of a moving object transmitted by pressure waves through a medium to a human ear. For traffic or stationary noise, the medium of concern is air. Noise is defined as sound that is loud, unpleasant, unexpected, or unwanted.

2.2 Frequency and Hertz Exhibit D: Typical A-Weighted Noise Levels A continuous sound is described by its frequency
(pitch) and its amplitude (loudness). Frequency
relates to the number of pressure oscillations per
second. Low-frequency sounds are low in pitch (bass
sounding) and high-frequency sounds are high in
pitch (squeak). These oscillations per second (cycles)
are commonly referred to as Hertz (Hz). The human
ear can hear from the bass pitch starting at 20 Hz to
the high pitch of 20,000 Hz.

2.3 Sound Pressure Levels and Decibels
The amplitude of a sound determines its loudness.

The loudness of sound increases or decreases as the
amplitude increases or decreases. Sound pressure
amplitude is measure in units of micro-Newton per
square inch meter (N/m2), also called micro-Pascal
(µPa). One µPa is approximately one hundred
billionths (0.00000000001) of normal atmospheric
pressure. Sound pressure level (SPL or Lp) is used to
describe in logarithmic units the ratio of actual
sound pressures to a reference pressure squared.

These units are called decibels abbreviated dB. Exhibit C illustrates references sound levels for different noise sources.

2.4 Addition of Decibels
Because decibels are on a logarithmic scale, sound pressure levels cannot be added or subtracted by simple plus or minus addition. When two sounds or equal SPL are combined, they will produce an SPL 3 dB greater than the original single SPL. In other words, sound energy must be doubled to produce a 3 dB increase. If two sounds differ by approximately 10 dB, the higher sound level is the predominant sound. 6 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Fundamentals of Noise

2.5 Sensitive Receptors
Noise-sensitive land uses include residential (single and multi-family dwellings, mobile home parks, dormitories, and similar uses); transient lodging (including hotels, motels, and similar uses); hospitals, nursing homes, convalescent hospitals, and other facilities for long-term medical care; public or private educational facilities, libraries, churches, and places of public assembly.

2.6 Human Response to Changes in Noise Levels
In general, the healthy human ear is most sensitive to sounds between 1,000 Hz and 5,000 Hz, (Aweighted scale) and it perceives a sound within that range as being more intense than a sound with a higher or lower frequency with the same magnitude. For purposes of this report as well as with most environmental documents, the A-scale weighting is typically reported in terms of A-weighted decibel (dBA). Typically, the human ear can barely perceive a change in noise level of 3 dB. A change in 5 dB is readily perceptible, and a change in 10 dB is perceived as being twice or half as loud. As previously discussed, a doubling of sound energy results in a 3 dB increase in sound, which means that a doubling of sound energy (e.g. doubling the volume of traffic on a highway) would result in a barely perceptible change in sound level.

Table 1: Decibel Changes and Loudness
Changes in Intensity Level, dBA Changes in Apparent Loudness 1 Not perceptible
3 Just perceptible
5 Clearly noticeable
10 Twice (or half) as loud
Source: https://www.fhwa.dot.gov/environMent/noise/regulations_and_guidance/polguide/polguide02.cfm

2.7 Noise Descriptors
Noise in our daily environment fluctuates over time. Some noise levels occur in regular patterns, others are random. Some noise levels are constant while others are sporadic. Noise descriptors were created to describe the different time-varying noise levels.

A-Weighted Sound Level: The sound pressure level in decibels as measured on a sound level meter using the A-weighted filter network. The A-weighting filter de-emphasizes the very low and very highfrequency components of the sound in a manner similar to the response of the human ear. A numerical method of rating human judgment of loudness.

Ambient Noise Level: The composite of noise from all sources, near and far. In this context, the ambient noise level constitutes the normal or existing level of environmental noise at a given location. 7 Date Palm Mixed Use Project
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City of Cathedral City, CA Fundamentals of Noise
Community Noise Equivalent Level (CNEL): The average equivalent A-weighted sound level during a 24- hour day, obtained after the addition of five (5) decibels to sound levels in the evening from 7:00 to 10:00 PM and ten (10) decibels to sound levels in the night before 7:00 AM and after 10:00 PM.

Decibel (dB): A unit for measuring the amplitude of a sound pressure wave. The range of sound audible to the average human (from the quietest to the loudest perceptible sound) is difficult to measure on a linear scale: imagine trying to measure something from inches to miles with the same ruler. Therefore, the convention is to use a logarithmic scale, measured in decibels. A decibel is a logarithmic expression comparing a pressure to a reference pressure (20 micro-pascals) that provides a useful way to compare sounds of differing amplitudes.
dB(A): A-weighted sound level (see definition above).

Equivalent Sound Level (LEQ): The sound level corresponding to a steady noise level over a given sample period with the same amount of acoustic energy as the actual time-varying noise level. The energy average noise level during the sample period.

Habitable Room: Any room meeting the requirements of the Uniform Building Code or other applicable regulations which is intended to be used for sleeping, living, cooking, or dining purposes, excluding such enclosed spaces as closets, pantries, bath or toilet rooms, service rooms, connecting corridors, laundries, unfinished attics, foyers, storage spaces, cellars, utility rooms, and similar spaces.

L(n): The A-weighted sound level exceeded during a certain percentage of the sample time. For example, L10 in the sound level exceeded 10 percent of the sample time. Similarly, L50, L90, and L99, etc.

Noise: Any unwanted sound or sound which is undesirable because it interferes with speech and hearing, or is intense enough to damage hearing, or is otherwise annoying. The State Noise Control Act defines noise as "...excessive undesirable sound...".

Outdoor Living Area: Outdoor spaces that are associated with residential land uses typically used for passive recreational activities or other noise-sensitive uses. Such spaces include patio areas, barbecue areas, jacuzzi areas, etc. associated with residential uses; outdoor patient recovery or resting areas associated with hospitals, convalescent hospitals, or rest homes; outdoor areas associated with places of worship which have a significant role in services or other noise-sensitive activities; and outdoor school facilities routinely used for educational purposes which may be adversely impacted by noise. Outdoor areas usually not included in this definition are: front yard areas, driveways, greenbelts, maintenance areas and storage areas associated with residential land uses; exterior areas at hospitals that are not used for patient activities; outdoor areas associated with places of worship and principally used for shortterm social gatherings; and, outdoor areas associated with school facilities that are not typically associated with educational uses prone to adverse noise impacts (for example, school play yard areas).

Percent Noise Levels: See L(n).
8 Date Palm Mixed Use Project
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City of Cathedral City, CA Fundamentals of Noise
Sound Level (Noise Level): The weighted sound pressure level obtained by use of a sound level meter having a standard frequency filter for attenuating part of the sound spectrum.

Sound Level Meter: An instrument, including a microphone, an amplifier, an output meter, and frequency weighting networks for the measurement and determination of noise and sound levels.

Single Event Noise Exposure Level (SENEL): The dB(A) level which, if it lasted for one second, would produce the same A-weighted sound energy as the actual event.

2.8 Traffic Noise Prediction
Noise levels associated with traffic depends on a variety of factors: volume of traffic; the speed of traffic; auto, medium truck (2-axle), and heavy truck percentage (3-axle and greater); and sound propagation.

Higher traffic volume, speeds, and truck percentages equate to a louder volume in noise. A doubling of the Average Daily Traffic (ADT) along a roadway will increase noise levels by approximately 3 dB; reasons for this are discussed in the sections above.

2.9 Sound Propagation
As sound propagates from a source it spreads geometrically. Sound from a small, localized source (i.e., a point source) radiates uniformly outward as it travels away from the source in a spherical pattern. The sound level attenuates at a rate of 6 dB per doubling of distance. The movement of vehicles down a roadway makes the source of the sound appear to propagate from a line (i.e., line source) rather than a point source. This line source results in the noise propagating from a roadway in a cylindrical spreading versus a spherical spreading that results from a point source. The sound level attenuates for a line source at a rate of 3 dB per doubling of distance.

As noise propagates from the source, it is affected by the ground and atmosphere. Noise models use hard site (reflective surfaces) and soft site (absorptive surfaces) to help calculate predicted noise levels.

Hard site conditions assume no excessive ground absorption between the noise source and the receiver.

Soft site conditions such as grass, soft dirt, or landscaping attenuate noise at a rate of 1.5 dB per doubling of distance. When added to the geometric spreading, the excess ground attenuation results in an overall noise attenuation of 4.5 dB per doubling of distance for a line source and 7.5 dB per doubling of distance for a point source.

Research has demonstrated that atmospheric conditions can have a significant effect on noise levels when noise receivers are located 200 feet from a noise source. Wind, temperature, air humidity, and turbulence can further impact have far sound can travel. 9 Date Palm Mixed Use Project
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City of Cathedral City, CA Ground-Borne Vibration Fundamentals

3.0 Ground-Borne Vibration Fundamentals

3.1 Vibration Descriptors
Ground-borne vibrations consist of rapidly fluctuating motions within the ground that have an average motion of zero. The effects of ground-borne vibrations typically only cause a nuisance to people, but at extreme vibration levels, damage to buildings may occur. Although ground-borne vibration can be felt outdoors, it is typically only an annoyance to people indoors where the associated effects of the shaking of a building can be notable. Ground-borne noise is an effect of ground-borne vibration and only exists indoors since it is produced from noise radiated from the motion of the walls and floors of a room and may also consist of the rattling of windows or dishes on shelves.

Several different methods are used to quantify vibration amplitude.

PPV – Known as the peak particle velocity (PPV) which is the maximum instantaneous peak in vibration velocity, typically given in inches per second.

RMS – Known as root mean squared (RMS) can be used to denote vibration amplitude.

VdB – A commonly used abbreviation to describe the vibration level (VdB) for a vibration source.

3.2 Vibration Perception
Typically, developed areas are continuously affected by vibration velocities of 50 VdB or lower. These continuous vibrations are not noticeable to humans whose threshold of perception is around 65 VdB.

Outdoor sources that may produce perceptible vibrations are usually caused by construction equipment, steel-wheeled trains, and traffic on rough roads, while smooth roads rarely produce perceptible groundborne noise or vibration. To counter the effects of ground-borne vibration, the Federal Transit Administration (FTA) has published guidance relative to vibration impacts. According to the FTA, fragile buildings can be exposed to ground-borne vibration levels of 0.3 inches per second without experiencing structural damage. Although ground borne vibration is sometimes noticeable in outdoor environments, it is almost never annoying to people who are outdoors; therefore, the vibration level threshold is assessed at occupied structures. Therefore, all vibration impacts are assessed at the structure of an affected property.

There are three main types of vibration propagation: surface, compression, and shear waves. Surface waves, or Rayleigh waves, travel along the ground’s surface. These waves carry most of their energy along an expanding circular wavefront, similar to ripples produced by throwing a rock into a pool of water. P-waves, or compression waves, are body waves that carry their energy along an expanding spherical wavefront. The particle motion in these waves is longitudinal (i.e., in a “push-pull” fashion). Pwaves are analogous to airborne sound waves. S-waves, or shear waves, are also body waves that carry energy along an expanding spherical wavefront. However, unlike P-waves, the particle motion is transverse, or side-to-side and perpendicular to the direction of propagation. As vibration waves propagate from a source, the vibration energy decreases in a logarithmic nature and the vibration levels typically decrease by 6 VdB per doubling of the distance from the vibration source. As stated above, this 10 Date Palm Mixed Use Project
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City of Cathedral City, CA Ground-Borne Vibration Fundamentals drop-off rate can vary greatly depending on the soil but has been shown to be effective enough for screening purposes to identify potential vibration impacts that may need to be studied through actual field tests.
11 Date Palm Mixed Use Project
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4.0 Regulatory Setting
The proposed project is located in the City of Cathedral City, California, and noise regulations are addressed through the efforts of various federal, state, and local government agencies. The agencies responsible for regulating noise are discussed below.

4.1 Federal Regulations
The adverse impact of noise was officially recognized by the federal government in the Noise Control Act of 1972, which serves three purposes:
•
•
•
Publicize noise emission standards for interstate commerce Assist state and local abatement efforts
Promote noise education and research
The Federal Office of Noise Abatement and Control (ONAC) originally was tasked with implementing the Noise Control Act. However, it was eventually eliminated leaving other federal agencies and committees to develop noise policies and programs. Some examples of these agencies are as follows: The Department of Transportation (DOT) assumed a significant role in noise control through its various agencies. The Federal Aviation Agency (FAA) is responsible for regulating noise from aircraft and airports.

The Federal Highway Administration (FHWA) is responsible for regulating noise from the interstate highway system. The Occupational Safety and Health Administration (OSHA) is responsible for the prohibition of excessive noise exposure to workers. The United States Housing and Urban Development (HUD) is responsible for establishing noise regulations as it relates to exterior/interior noise levels for new HUD-assisted housing developments near high noise areas.

The federal government advocates that local jurisdictions use their land use regulatory authority to arrange new developments in such a way that “noise sensitive” uses are either prohibited from being constructed adjacent to a highway or that the developments are planned and constructed in such a manner that potential noise impacts are minimized.

Since the federal government has preempted the setting of standards for noise levels that can be emitted by the transportation source, the City is restricted to regulating the noise generated by the transportation system through nuisance abatement ordinances and land use planning.

4.2 State Regulations
Established in 1973, the California Department of Health Services Office of Noise Control (ONC) was instrumental in developing regularity tools to control and abate noise for use by local agencies. One significant model is the “Land Use Compatibility for Community Noise Environments Matrix.” The matrix allows the local jurisdiction to delineate the compatibility of sensitive uses with various incremental levels of noise.

The State of California has established noise insulation standards as outlined in Title 24 and the Uniform Building Code (UBC) which in some cases requires acoustical analyses to outline exterior noise levels and to ensure interior noise levels do not exceed the interior threshold. The State mandates that the legislative body of each county and city adopt a noise element as part of its comprehensive general plan. 12 Date Palm Mixed Use Project
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The local noise element must recognize the land use compatibility guidelines published by the State Department of Health Services. The guidelines rank noise land use compatibility in terms of normally acceptable, conditionally acceptable, normally unacceptable, and clearly unacceptable as illustrated in Exhibit D (City of Cathedral City Noise Element, Land Use Compatibility Matrix, Table V-2).

Exhibit E: Land Use Compatibility Guidelines

4.3 City of Cathedral City Noise Regulations
The City of Cathedral City outlines their noise regulations and standards within the City Safety and The City of Cathedral City outlines their noise regulations and standards within the Municipal Code and the Noise Element of the City of Cathedral City General Plan Chapter V Section C. 13 Date Palm Mixed Use Project
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City of Cathedral City General Plan
The Noise Element outlined in Chapter V Environmental Hazards coordinates the community’s land uses with the existing and future noise environment and designs measures intended to minimize or avoid community exposure to excessive noise levels. The implementation of the policies and programs contained in the Noise Element is meant to reduce or avoid current and future noise impacts.

The Noise Element identifies the major source of continuous, excessive noise in the city. Those sources are traffic noise propagating from main roadways and also freight rail service along the Southern Pacific Railroad, parallel to the I-10 highway. Airport noise can impact occasionally the noise environment.

Sensitive receptors are identified as schools, libraries, and medical facilities. The City of Cathedral City has adopted their ordinance to address the State requirement outlined by the California Government Code Section 65032, subsection (f) and section 21083.1 of the California Environmental Quality Act (CEQA). Applicable noise ordinance for the City of Cathedral City is in place through Chapter 11.96 of the City Municipal Code.

The Noise Element also describes the noise contours projected for major roadways, and the data is presented in Table V-3.

In addition to the noise standards, the City has outlined goals, policies, and programs to reduce potential noise impacts and are presented below:

Goals, Policies, and Programs
Policies, goals, and programs measures from the Noise Element that would mitigate potential impacts on noise include the following.

Goal: A noise environment that complements the City’s low density residential character and its various land uses.

Policy 1: Protect noise sensitive land uses, including residential neighborhoods, schools, hospitals, libraries, churches, resorts, and community open space, as well as land uses proposed in the vicinity of the railway, Interstate 10, the Mid-Valley Parkway, and Da Vall Drive from high noise levels generated by existing and future noise sources.

Program 1.A: Develop and maintain an inventory of existing noise sources and areas of incompatibility and establish procedures to reduce the noise levels in these areas, where economically and aesthetically feasible.

Program 1.B: Require building setbacks, the installation of wall and window insulation, soundwalls, earthen berms, and/or other mitigation measures in areas exceeding the City’s noise limit standards for private development projects as they occur.

Program 1.C: Maintain and enforce a Noise Control ordinance that establishes community-wide noise standards and identifies measures designed to resolve noise complaints. 14 Date Palm Mixed Use Project
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Program 1.D: Use Specific Plans and the development review process to encourage the use of buffers between noise sensitive land uses and incompatible land uses.

Program 1.E: Parking lots, loading zones, and large trash bins shall be located at a sufficient distance from adjacent residential properties to reduce associated noise impacts.

Policy 2: The relationship between land use designations in the Land Use Element and changes in the circulation pattern of the City, as well as individual developments shall be monitored and mitigated.

Program 2.A: The City zoning ordinance and development review standards shall be used to limit land use patterns and project designs to those that are noise compatible.

Program 2.B: Develop guidelines and minimal criteria requirements for noise analyses for future development projects. Studies shall evaluate project impacts and the effectiveness of proposed mitigation measures.

Program 2.C: Periodically review and amend the Land Use map as appropriate to assure reasonable land use/noise level compatibility.

Policy 3: Private sector project proposals shall include measures that assure that noise exposures levels comply with State of California noise insulation standards as defined in Title 25 (California Noise Insulation Standards).

Policy 4: Maintain a circulation map which maintains low levels of traffic within neighborhoods and assigns truck routes to major roadways only.

Program 4.A: Designate primary truck routes and ensure that they are clearly marked throughout the community. Except for traffic providing location-specific services and deliveries, construction trucks and delivery trucks shall be limited to East Palm Canyon Drive, Interstate-10, Date Palm Drive, Palm Drive, Varner Road, Edom Hill Road, Dinah Shore Drive, Ramon Road, and Vista Chino.

Program 4.B: Development projects which result in through-traffic in residential neighborhoods shall be discouraged through the development review process.

Policy 5: Maintain an ongoing contact with the Palm Springs Airport to ensure that flight paths and airport improvements do not impact or extend noise contours into the City.

Policy 6: Coordinate with adjoining municipalities to assure noise-compatible land uses across jurisdictional boundaries.

Policy 7: The City shall restrict grading and construction activities that may impact residential neighborhoods to specified days of the week and times of day. 15 Date Palm Mixed Use Project
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City of Cathedral City – Noise Ordinance
Section 11.96.030 “Prohibited acts” from the noise ordinance outlines the City’s exterior noise limits as it relates to stationary noise sources.
(A) It is unlawful for any person to engage in the following activities:
(6) To produce, suffer or allow to be produced noise or sounds that exceeds the dB(A) levels in the table below. Exterior noise shall be measured at the lot line of the lot where the noise or sounds are emanating. If the measurement location is on the boundary between two different noise zones, the lower noise level standard applicable to the noise zone shall apply. Interior noise shall be measured at least four feet from the wall, floor, or ceiling nearest to the noise source and with all windows, doors, and other openings to the exterior closed.

Noises caused by motor vehicles or trains are exempt from these standards.

In the event the ambient noise level exceeds these levels, no person shall produce, suffer or allow to be produced noise or sounds in excess of the ambient noise level.

Table 2: Allowable Exterior Noise Level
Zone Time dB(A) Level
Residential – Exterior Noise 7 a.m. – 10 p.m.
10 p.m. - 7 a.m.
7 a.m. – 10 p.m.
10 p.m. - 7 a.m.
65 50
50 40
Residential – Interior Noise
Commercial Industrial – Exterior Noise 7 a.m. – 10 p.m. 10 p.m. – 7 a.m.
85 55
Section 11.96.060(L) of the Municipal Code enlist the exceptions from Chapter 11.96 as follows:
(L) Construction, repair or excavation work performed pursuant to a valid written agreement with the city or any of its political subdivisions which agreement provides for noise mitigation measures;
In addition, Chapter 9.86 of the Municipal Code outlines the performance standards for commercial and industrial zones. This section classifies the performance standards in A, B, and C, referring all three to Chapter 11.96 for noise limits.

Also, Chapter 9.96 “Special Provisions Applying to Miscellaneous Problem Uses” outlines the noise attenuation requirements for carwashes on Section 9.96.140. 16 Date Palm Mixed Use Project
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Vibration Regulations
Chapter 9.86 states vibration standards as follows: All uses shall be so operated as not to generate vibration discernible without instruments by the average person while on or beyond the lot upon which the source is located or within an adjoining enclosed space if more than one establishment occupies a structure. Vibration caused by motor vehicles, trains, and temporary construction or demolition work is exempt from this standard.

Construction Regulations
Chapter 11.96 outlines the permitted hours for construction work in Section 11.96.070 limiting the time for construction work as stated in Subsection B of this Section.

1. October 1st through April 30th.

Monday – Friday: 7:00 a.m. to 5:30 p.m.

Saturday:

Sunday:

State holidays:
8:00 a.m. to 5:00 p.m.

No permissible hours
No permissible hours

2. May 1st through September 30th.

Monday – Friday: 6:00 a.m. to 7:00 p.m.

Saturday:

Sunday:

State holidays:
8:00 a.m. to 5:00 p.m.

No permissible hours
No permissible hours
17 Date Palm Mixed Use Project
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5.0 Study Method and Procedure
The following section describes the noise modeling procedures and assumptions used for this assessment.

5.1 Noise Measurement Procedure and Criteria
Noise measurements are taken to determine the existing noise levels. A noise receiver or receptor is any location in the noise analysis in which noise might produce an impact. The following criteria are used to select measurement locations and receptors:
•
•
•
•
Locations expected to receive the highest noise impacts, such as the first row of houses Locations that are acoustically representative and equivalent of the area of concern Human land usage
Sites clear of major obstruction and contamination
All measurements equipment meets American National Standards Institute (ANSI) specifications for sound level meters (S1.4-1983 identified in Chapter 19.68.020.AA). MD noise measurement procedures are presented below:
•
•
•
•
•
The sound level meter was calibrated (Piccolo-II) before and after the measurement Following the calibration of equipment, a windscreen was placed over the microphone Frequency weighting was set on “A” and slow response
Results of the noise measurements were recorded on field data sheets Temperature and sky conditions were observed and documented

5.2 Noise Measurement Locations
The noise monitoring location was selected to obtain a baseline of the existing noise environment. One long-term noise measurement was conducted at the Project site. Appendix A includes photos, the field sheet, and measured noise data. Exhibit E illustrates the location of the measurement.

5.3 SoundPLAN Noise Model (Operational Noise)
SoundPLAN acoustical modeling software was utilized to model project operational noise at nearby sensitive receptors. The SoundPLAN software utilizes algorithms (based on the inverse square law) to calculate noise level projections. It allows the user to input specific noise sources, spectral content, sound barriers, building placement, topography, and sensitive receptor locations. It also calculates noise level increases due to the reflection of noise from hard surfaces.

The future worst-case noise level projections were modeled using referenced sound level data for the various stationary on-site sources (parking spaces, loading areas, and HVAC units). The Alternative 1 model assumes that the building facility has twenty-eight (28) exterior storage loading, three (3) rooftop HVAC units, and parking. Alternative 2 model assumes that the building facility has twenty-eight (28) exterior storage loading, five (5) rooftop HVAC units, one (1) truck loading dock and parking. 18 Date Palm Mixed Use Project
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Trucks idling at the loading and unloading area were modeled as point sources with a reference noise level of 74 dBA at 10 feet.

Cars idling at the exterior storage loading a were modeled as point sources with a reference noise level of 63 dBA sound power level.

Rooftop HVAC units were modeled as point sources with a reference noise level per manufacturer cut sheets. The model does not include parapets, which are anticipated and will further reduce the noise levels.

Parking was modeled as 1 car movement per parking space per hour.

The SoundPlan model assumes that all noise sources are operating simultaneously (worst-case scenario) when in actuality the noise will be intermittent and lower in noise level.

Finally, the model is able to evaluate the noise attenuating effects of any existing or proposed property line walls. Modeling assumptions are summarized in Table 3. Input and output calculations are provided in Appendix B.

Table 3: SoundPLAN Modeling Assumptions
Reference Sound Level
(dBA, Leq)
Distance to Reference
Source (ft) Noise Source Source Type
Parking Parking Lot Tool
Point Source
Point Source
Point Source
1 movement per hour --
Idling Car 63
74 Sound Power
Idling Heavy Truck 10 ft
Rooftop HVAC Unit 79-83 Sound Power
Source: SoundPLAN library
Noise levels to sensitive receptors were modeled to the nearest single family and multifamily residential uses adjacent to the project site to the east. The approximate distance from the project site to the receptors ranges from 10 to 30 feet.

5.4 Traffic Noise Prediction Modeling
The FHWA Traffic Noise Prediction Model (FHWA-RD-77-108) was utilized to model future traffic noise levels on the project site and existing and existing plus project traffic noise volumes along roadways affected by project generated vehicle traffic. The FHWA model arrives at the predicted noise level through a series of adjustments to the Reference Energy Mean Emission Level (REMEL).

Project-generated vehicle traffic will result in an incremental increase in ambient noise levels. To determine the project’s noise impact to the surrounding land uses, MD generated noise contours for existing ADT, and existing plus project conditions. Table 4 indicates the roadway parameters and vehicle 19 Date Palm Mixed Use Project
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distribution utilized for the modeling. Noise contours are used to provide a characterization of sound levels experienced at a set distance from the centerline of a subject roadway. They are intended to represent a worst-case scenario and do not take into account structures, sound walls, topography, and/or other sound attenuating features that may further reduce the actual noise level. Noise contours are developed for comparative purposes and are used to demonstrate potential increases/decreases along subject roadways as a result of a project. The referenced traffic data and traffic noise calculation worksheets outputs are located in Appendix C.
•
•
Roadway classification – (e.g., freeway, major arterial, arterial, secondary, collector, etc.), Roadway Active Width – (distance between the center of the outermost travel lanes on each side of the roadway)
• Average Daily Traffic Volumes (ADT), Speeds, Percentages of autos, medium and heavy trucks
Roadway grade and angle of view
Site Conditions (e.g., soft vs. hard)
Percentage of total ADT which flows each hour throughout a 24-hour period •
•
•
Table 4: Roadway Parameters and Vehicle Distribution
Existing Plus
Project ADT
(Alternative 1)
Existing Plus
Project ADT
(Alternative 2)
Site
Conditions Roadway Segment Existing ADT Speed (MPH)
McCallum
Date Palm Dr Way to 21,246 24,903 24,522 45 Soft
30th Ave
Major Arterial Vehicle Distribution (Truck Mix)2
Total % of
Traffic Daytime %
(7AM to 7 PM)
Evening %
(7 PM to 10 PM)
Night %
(10 PM to 7 AM) Motor-Vehicle Type
Flow
Automobiles
Medium Trucks
Heavy Trucks

75.5 48.0

48.0 14.0

2.0 10.4

50.0 50.0

92.00 3.00

2.0 5.00
Secondary and Collector Vehicle Distribution (Truck Mix)2 Total % of
Traffic
Flow
Daytime %
(7AM to 7 PM)
Evening %
(7 PM to 10 PM)
Night %
(10 PM to 7 AM) Motor-Vehicle Type
Automobiles
Medium Trucks
Heavy Trucks

75.5 48.9

47.3 14.0

2.2 10.5

48.9 47.3

97.42 1.84

5.4 0.74
Notes:
1 Existing ADT from Coachella Valley Traffic counts, Project ADT provided by GIE Transportation Planning and Engineering. 2 Vehicle distribution data is based on Cathedral City traffic counts 20 Date Palm Mixed Use Project
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City of Cathedral City, CA Study Method and Procedure

5.5 Construction Noise Modeling
Construction noise associated with the proposed project was calculated utilizing methodology presented in the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (2018) together with several key construction parameters including distance to each sensitive receiver, equipment usage, percent usage factor, and baseline parameters for the project site. Construction activities are anticipated to include four phases site preparation, grading, building construction, and paving.

Construction noise levels were calculated for each phase based on the CalEEMod Air Quality Model assumptions. All equipment was assumed to be situated at the center of the project site. Construction worksheets are provided in Appendix D.
21 Date Palm Mixed Use Project
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City of Cathedral City, CA Existing Noise Environment

6.0 Existing Noise Environment
One (1) 24-hour noise measurement was conducted at the project site to document the existing noise environment. The measurements include the 1-hour Leq, Lmin, Lmax, and other statistical data (e.g. L2, L8). The results of the noise measurement are presented in Table 5. Noise measurement field sheets are provided in Appendix A.

Table 5: Long-Term Noise Measurement Data for (LT1) (dBA)1 1-Hour dB(A)
Date Time L

EQ LMAX

78.0 81.5

69.4 65.4

70.4 69.8

69.7 72.5

76.0 76.2

80.1 77.6

71.4 68.2

69.2 66.0

76.0 76.0

71.6 81.9

85.2 83.5

81.5 82.5
LMIN

45.3 43.8

41.0 41.5

41.3 41.5

42.0 43.0

48.2 48.9

42.2 42.5

40.6 41.3

42.0 41.6

39.9 39.8

42.0 41.9

43.7 41.1

44.6 43.9
L2 L8 L25 L50 L90
3/8/2023 10PM-11PM
3/8/2023 11PM-12AM

58.3 57.2

54.7 53.7

52.4 53.0

54.8 56.7

60.7 61.0

60.0 57.5

56.3 54.4

53.7 53.8

54.9 56.2

57.0 59.6

60.0 59.4

60.0 57.7

65.6 52.7

58.7 57.0

56.6 57.6

59.7 61.5

64.5 64.5

63.7 62.2

60.8 59.1

57.4 57.5

59.5 62.8

61.8 63.4

64.8 64.2

67.5 61.1

60.5 58.9

58.4 55.8

55.3 56.1

58.0 60.0

62.4 63.8

62.0 60.2

59.8 57.2

56.2 56.4

57.2 59.1

59.8 61.5

62.6 59.8

64.4 59.7

58.1 56.7

55.5 54.5

52.9 53.4

56.2 58.1

61.4 61.8

60.7 58.3

57.2 55.1

54.1 55.0

55.1 56.4

58.2 59.4

60.0 58.4

59.7 58.3

56.1 55.2

53.6 53.5

51.4 51.5

53.4 55.6

60.3 60.5

59.5 56.7

55.5 53.5

52.6 53.2

53.2 54.5

56.3 57.3

56.6 56.5

57.5 57.0

53.0 52.2

51.1 51.1

48.1 48.0

50.1 51.5

57.4 57.7

54.8 53.3

51.6 50.7

50.4 50.0

50.4 50.5

52.8 54.3

53.6 53.6

54.6 54.1
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
12AM-1AM
1AM-2AM
2AM-3AM
3AM-4AM
4AM-5AM
5AM-6AM
6AM-7AM
7AM-8AM
8AM-9AM
9AM-10AM
3/9/2023 10AM-11AM
3/9/2023 11AM-12PM
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
3/9/2023
12PM-1PM
1PM-2PM
2PM-3PM
3PM-4PM
4PM-5PM
5PM-6PM
6PM-7PM
7PM-8PM
8PM-9PM
9PM-10PM
CNEL 62.7
Notes:

1.Long-term noise monitoring location (LT1) is illustrated in Exhibit E.

2.Quietest ambient noise level during operational hours highlighted in orange.

The data presented in Table 5 and the field notes provided in Appendix A, indicate that ambient noise levels in the project vicinity range between 54 and 61 dBA Leq during operational hours. The overall CNEL was 62.7 dBA CNEL. The field data indicates that Date Palm Road is the dominant noise source.

The quietest ambient noise level during operational hours is highlighted in orange. 22 Date Palm Mixed Use Project
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City of Cathedral City, CA
Exhibit F
Measurement Locations
X = Measurement location
Site
1 22
Date Palm Mixed Use Project
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City of Cathedral City, CA Future Noise Environment Impacts and Mitigation

7.0 Future Noise Environment Impacts and Mitigation
This assessment analyzes future noise impacts to sensitive receptors and the project and compares the results to the City’s Noise Standards. The analysis details the estimated exterior noise levels associated with traffic from adjacent roadway sources. The City has established different significance thresholds for different types of noise impacts.

7.1 Off-Site Traffic Noise Impact
The potential off-site noise impacts caused by the increase in vehicular traffic as a result of the project were calculated at a distance of 50 feet from affected road segments. The noise levels at 50 feet both with and without project-generated vehicle traffic were compared and the increase was calculated. The distance to the 70, 65, 60, and 55 dBA CNEL noise contours are also provided for reference (Appendix C). Noise contours were calculated for the following scenarios and conditions:
• Existing Condition: This scenario refers to the existing year traffic noise condition and is demonstrated in Table 6 and Table 7.
• Existing + Project Condition: This scenario refers to the existing year plus project traffic noise condition and is demonstrated in Table 6: Alternative 1 and Table 7: Alternative 2.

As shown in Table 6, the addition of project-generated vehicle traffic to Date Palm Road due to Alternative 1would result in negligible increases in ambient noise levels and would not be significant.

Table 6: Alternative 1 Existing Scenario - Noise Levels Along Roadways (dBA CNEL) Existing Without Project Exterior Noise Levels
CNEL
at 50 Ft
(dBA)
Distance to Contour (Ft)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
55 dBA
CNEL Roadway Segment
Date Palm Dr McCallum Way to 30th Ave 72.1 69 149 321 691 Existing With Project Exterior Noise Levels
CNEL
at 50 Ft
(dBA)
Distance to Contour (Ft)
70 dBA
CNEL
77 65 dBA
CNEL
165
60 dBA
CNEL
356
55 dBA
CNEL
768
Roadway Segment
Date Palm Dr McCallum Way to 30th Ave 72.8
Change in Existing Noise Levels as a Result of Project
CNEL at 50 Feet dBA2
Existing
Without
Project

72.1 Existing Potential
Significant
Impact
No
Change in
Noise Level
Roadway1
Segment With
Project
Date Palm Dr McCallum Way to 30th Ave 72.8 0.7
Notes:
1 Exterior noise levels calculated at 5 feet above ground level. 2 Noise levels calculated from centerline of subject roadway. 24 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Future Noise Environment Impacts and Mitigation As shown in Table 7, the addition of project-generated vehicle traffic to Date Palm Road due to Alternative 2 would result in negligible increases in ambient noise levels and would not be significant.

Table 7: Alternative 2 Existing Scenario - Noise Levels Along Roadways (dBA CNEL) Existing Without Project Exterior Noise Levels
CNEL
at 50 Ft
(dBA)
Distance to Contour (Ft)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
55 dBA
CNEL Roadway Segment
Date Palm Dr McCallum Way to 30th Ave 72.1 69 149 321 691 Existing With Project Exterior Noise Levels
CNEL
at 50 Ft
(dBA)
Distance to Contour (Ft)
70 dBA
CNEL
76 65 dBA
CNEL
164
60 dBA
CNEL
353
55 dBA
CNEL
760
Roadway Segment
Date Palm Dr McCallum Way to 30th Ave 72.7
Change in Existing Noise Levels as a Result of Project
CNEL at 50 Feet dBA2
Existing
Without
Project

72.1 Existing Potential
Significant
Impact
No
Change in
Noise Level
Roadway1
Segment With
Project
Date Palm Dr McCallum Way to 30th Ave 72.7 0.6
Notes:
1 Exterior noise levels calculated at 5 feet above ground level. 2 Noise levels calculated from centerline of subject roadway.

7.2 On-Site Traffic Noise Impact
Future noise levels associated with traffic were modeled using the FHWA Traffic Noise Model calculations in order to evaluate the project in light of the City’s exterior standards presented in Table 3 of this report as they apply to future traffic noise impacts to the proposed project. The Project is currently within the conditionally acceptable range at 74 dBA CNEL. It will not change due to the increase in traffic levels due to the project. There are no outdoor uses for this Project.

7.3 Noise Impacts to Off-Site Receptors Due to Stationary Noise Sources The existing residential land use located east of the project site are a sensitive receptors that may be affected by project operational noise. Worst-case operational noise was modeled using SoundPLAN acoustical modeling software. Eight (8) receptors representative of the residential adjacent sites were modeled using the SoundPLAN noise model to evaluate the proposed project’s operational impact. A receptor is denoted by a yellow dot. All yellow dots represent a property line. The results are in Table 7.

Alternative 1 Project Operational Noise Levels
Worst-case “project only” exterior operational noise is presented in Exhibit G. Operational noise levels are expected to reach 43 to 50 dBA Leq at the residential receptors. 25 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Future Noise Environment Impacts and Mitigation Alternative 1 Project Plus Ambient Operational Noise Levels Existing plus project noise level projections are anticipated to reach up to 55 dBA Leq at the nearest residential receptors. The project-generated operational noise is expected to result in a maximum of 2 dB increase at the adjacent residential sites. This does not exceed the noise ordinance and therefore the impact is less than significant.

Table 8: Alternative 1 Operational Noise Levels (dBA, Leq) Existing
Ambient Noise
Level
Total
Combined
Noise Level
(dBA, Leq)
Daytime Project
Noise Level
(dBA, Leq)3
Change in Noise
Level as Result of
Project
(7AM - 10PM)
Stationary Noise
Limit (dBA, Leq)
Receptor1 Floor
(dBA, Leq)2
1 2
3 4
5 6
7 8
1 1
1 1
1 1
1 1
46 46
47 48
48 50
45 42
54 54
55 55
55 55
54 54
1 1
1 1
1 2
1 0

53.7 65.0
Notes:

1.Receptor1- 8 represent residential uses.

2.Appendix A measured ambient noise data.

3.See Exhibit G for the operational noise level projections at said receptors.

4.Daytime noise ordinance Section 11.96.030 of the Cathedral City Municipal code.

Alternative 2 Project Operational Noise Levels
Worst-case “project only” exterior operational noise is presented in Exhibit H. Operational noise levels are expected to reach 43 to 50 dBA Leq at the residential receptors.

Alternative 2 Project Plus Ambient Operational Noise Levels Existing plus project noise level projections are anticipated to reach up to 55 dBA Leq at the nearest residential receptors. The project-generated operational noise is expected to result in a maximum of 2 dB increase at the adjacent residential sites. This does not exceed the noise ordinance and therefore the impact is less than significant.
<Table 9 Next Page>
26 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Future Noise Environment Impacts and Mitigation Table 9: Alternative 2 Operational Noise Levels (dBA, Leq) Existing
Ambient Noise
Level
Total
Combined
Noise Level
(dBA, Leq)
Daytime Project
Noise Level
(dBA, Leq)3
Change in Noise
Level as Result of
Project
(7AM - 10PM)
Stationary Noise
Limit (dBA, Leq)
Receptor1 Floor
(dBA, Leq)2
1 2
3 4
5 6
7 8
1 1
1 1
1 1
1 1
47 48
49 50
50 50
45 43
55 55
55 55
55 55
54 54
1 1
1 2
2 2
1 0

53.7 65.0
Notes:

1.Receptor1- 8 represent residential uses.

2.Appendix A measured ambient noise data.

3.See Exhibit H for the operational noise level projections at said receptors.

4.Daytime noise ordinance Section 11.96.030 of the Cathedral City Municipal code. 27 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Exhibit G
Operational Noise Levels Alternative 1
27 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA
Exhibit H
Operational Noise Levels Alternative 2
28 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Construction Noise and Vibration Impacts

8.0 Construction Noise and Vibration Impacts
The degree of construction noise may vary for different areas of the project site and also vary depending on the construction activities. Project construction will occur in four phases, site preparation, grading, building construction, and paving. This section summarizes and discusses noise and ground-borne vibration modeling efforts, impact analysis, and mitigation, if necessary.

8.1 Construction Noise
Typical construction equipment noise levels are presented in Table 10.

Table 10: Typical Construction Equipment Noise Levels1

EQUIPMENT POWERED BY INTERNAL COMBUSTION ENGINES
Type Noise Levels (dBA) at 50 Feet
Earth Moving
Compactors (Ground)
Front Loaders
Backhoes
80 80
80 84
85 85
84 Tractors
Scrapers, Graders
Pavers
Trucks
Materials Handling
Stationary
Concrete Mixers
Concrete Pumps
Cranes
85 82
85 Pumps 77
82 80
Generators
Compressors

IMPACT EQUIPMENT
Type Noise Levels (dBA) at 50 Feet
Concrete Saws 90
Vibratory Pile Driver 95
Notes:
1 Referenced Noise Levels from the FHWA Construction Noise Handbook Construction noise associated with each phase of the project was calculated at nearby sensitive receptors utilizing methodology presented in the Federal Highway Administration (FHWA) Construction Noise Model together with several key construction parameters including distance to each sensitive 30 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Construction Noise and Vibration Impacts receiver, equipment usage, percent usage factor, and baseline parameters for the project site.

Construction was modeled from the edge of the site to the nearest adjacent properties in use.

Construction activities are anticipated to include five phases: site preparation, grading, building construction, paving, and architectural coating. Noise levels associated with each phase are shown in Table 11. The construction noise calculation output worksheet is located in Appendix D.

Table 11: Construction Noise Level by Phase (dBA, Leq)
Noise Levels at Nearest Sensitive Receptor
Activity
Leq
73 70
72 68
59 Lmax
Site Preparation 79
Grading 80
Building Construction
Paving
79 78
Architectural Coating 73
Notes:

Construction Modeling Worksheets are provided in Appendix D.

As shown in Table 11, project construction noise will range between 59 to 73 dBA Leq at the nearest sensitive receptors, which are the residential uses at the eastern property line.

The Project will be required to adhere to Section 11.96.070 of the City of Cathedral City Municipal Code which outlines the allowed times for construction. Therefore, the impact is less than significant.

In addition to complying with Section 11.96.070 of the City of Cathedral City Municipal Code, the following best practices are recommended to reduce construction noise:

1. During construction, the contractor shall ensure that all construction equipment is equipped with appropriate noise attenuating devices.

2. The contractor should locate equipment staging areas that will create the greatest distance between construction-related noise/vibration sources and sensitive receptors nearest the project site during all project construction.

3. Idling equipment should be turned off when not in use.

4. Equipment shall be maintained so that vehicles and their loads are secured from rattling and banging.

8.2 Construction Vibration
Construction activities can produce vibration that may be felt by adjacent land uses. The construction of the proposed project would not require the use of equipment such as pile drivers, which are known to 31 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Construction Noise and Vibration Impacts generate substantial construction vibration levels. The primary vibration source during construction may be from a bulldozer. A large bulldozer has a vibration impact of 0.089 inches per second peak particle velocity (PPV) at 25 feet which is perceptible but below any risk to architectural damage.

The fundamental equation used to calculate vibration propagation through average soil conditions and distance is as follows:

PPVequipment = PPVref (100/Drec)
n
Where: PPVref = reference PPV at 100ft.

Drec = distance from equipment to receiver in ft.
n = 1.5 (the value related to the attenuation rate through the ground) The thresholds from the Caltrans Transportation and Construction Induced Vibration Guidance Manual in Table 12 (below) provides general thresholds and guidelines as to the vibration damage potential from vibratory impacts.

Table 12: Guideline Vibration Damage Potential Threshold Criteria Maximum PPV (in/sec)
Structure and Condition Continuous/Frequent Transient Sources Intermittent Sources
Extremely fragile historic buildings, ruins, ancient monuments Fragile buildings

0.12 0.2

0.5 0.5

1.0 2.0

0.08 0.1
Historic and some old buildings
Older residential structures

0.25 0.3
New residential structures 0.5
Modern industrial/commercial buildings 0.5
Source: Table 19, Transportation and Construction Vibration Guidance Manual, Caltrans, Sept. 2013.

Note: Transient sources create a single isolated vibration event, such as blasting or drop balls. Continuous/frequent intermittent sources include impact pile drivers, pogo-stick compactors, crack-and-seat equipment, vibratory pile drivers, and vibratory compaction equipment.

Table 13 gives approximate vibration levels for particular construction activities. This data provides a reasonable estimate for a wide range of soil conditions. <Table 13, next page>
32 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA Construction Noise and Vibration Impacts Table 13: Vibration Source Levels for Construction Equipment Peak Particle Velocity Approximate Vibration Level
Equipment (inches/second) at 25 feet LV (dVB) at 25 feet

1.518 (upper range)

0.644 (typical)

0.734 upper range

0.170 typical

0.202
112
104
105
93 Pile driver (impact)
Pile driver (sonic)
Clam shovel drop (slurry wall)
Hydromill
94 0.008 in soil

0.017 in rock

0.21 66
(slurry wall) 75
Vibratory Roller
Hoe Ram
94 0.089 87
Large bulldozer
Caisson drill

0.089 87

0.089 87
Loaded trucks
Jackhammer

0.076 86

0.035 79
Small bulldozer
Source: Transit Noise and Vibration Impact Assessment, Federal Transit Administration, May 2018.

0.003 58
The nearest existing building is 50 feet east of the project site. At this distance, a large bulldozer would yield a worst-case 0.042 PPV (in/sec) which is not perceptible and will not result in architectural damage.

The impact is not significant. The ground-borne vibration worksheet is provided in Appendix E. 33 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA CEQA Analysis

9.0 CEQA Analysis
The California Environmental Quality Act Guidelines (Appendix D) establishes thresholds for noise impact analysis as presented below:
(a) Would the project result in the generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise Code, or applicable standards of other agencies? Transportation Noise Impacts
Transportation noise impacts would be considered significant if the existing plus project levels are expected to increase by more than 3 dB. Compared to existing traffic noise levels, future traffic volumes for Alternative 1 are expected to increase 0.7 dBA CNEL at existing land uses. Future traffic volumes for Alternative 2 are expected to increase 0.6 dBA CNEL at the existing land uses. The impact is therefore less than significant for Alternative 1 and Alternative 2.

Stationary Noise Sources
Stationary noise impacts would be considered significant if they result in exceedances of Section

11.96.030 of the Municipal Code. Implementation of the proposed project may result in stationary noise related to parking, idling cars, idling heavy trucks, and rooftop HVAC units. All equipment is required to meet the stationary noise limits of 65 dBA at the adjacent sensitive receptors.

Operational noise levels for Alternative 1 are expected to reach 42 to 50 dBA Leq at the residential receptors. Operational noise levels for Alternative 2 are expected to reach 43 to 50 dBA Leq. These noise levels for Alternative 1 and Alternative 2 do not exceed the City’s daytime noise standard of 65 dBA.

Therefore, the impact would be less than significant.

Construction Noise and Vibration
Construction noise will be significant if construction activities occur outside of the permitted construction hours specified in Section 11.96.070 of the City of Cathedral City Municipal Code.

Noise due to construction will result in short-term noise impacts associated with construction activities.

The site preparation and building phases of on-site construction activities will generate the highest temporary noise levels. The loudest construction equipment on the site will be tractors, graders, scrapers, and dozers. Typical operating cycles for these types of construction equipment may involve 1 or 2 minutes of full power operation followed by 3 or 4 minutes at lower power settings. The maximum Leq level for the loudest phase of construction is expected to be 73.1 dBA Leq and 78.6 dBA Lmax at the nearest existing adjacent residential building.
b) Generate excessive ground-borne vibration or ground-borne noise levels? 34 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA CEQA Analysis
Construction vibration will be significant if vibration exceeds levels that would result in structural damage to existing buildings. Construction activity is not anticipated to occur within 50 feet of sensitive receptors. At a distance of 50 feet, the nearest residential building to the project property line, a large bulldozer would yield a worst-case 0.042 PPV (in/sec) which is below the threshold of any risk of damage.

The project may result in temporary daytime residential annoyance. Construction activity is not expected to fall within the limits of structural damage, and therefore, the impact is less than significant. c) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? The nearest airport to the project site is the Palm Springs International Airport. The Palm Springs International Airport is approximately 2.38 miles to the west of the project. The project would be located outside the noise contours of the Palm Springs International Airport. Therefore, no substantial noise exposure from airport noise would occur and it would have no impact. 35 Date Palm Mixed Use Project
Noise Impact Study
City of Cathedral City, CA References

10.0 References
Cathedral City
2021 2040 General Plan
2021 Municipal Code
California Department of Transportation (Caltrans)
2013 Transportation and Construction Induced Vibration Guidance Manual. 2018 Technical Noise Supplement to the Traffic Noise Analysis Protocol. Sept.

Federal Highway Administration (FHWA)
2006 Construction Noise Handbook
Federal Transit Administration (FTA)
2018 Transit Noise and Vibration Impact Assessment Manual Governor’s Office of Planning and Research
State of California General Plan Guidelines, 1998
Integrated Engineering Group
Scoping Agreement for Date Palm Dr Mixed Use Project (March 2023) SoundPLAN International, LLC
2019 SoundPLAN Essential 8.1 Manual.
36 Appendix A:

Field Measurement Data

Appendix B:

SoundPLAN Noise Modeling Data
Capacity ratings

AHRI RATINGS

COOLING MODE
NOM. CAPACITY NET COOLING CAPACITY
(Btuh)

TOTAL POWER
(kW) 50GCQ SEER EER (tons)
M04
M05
M06
3 4
5 35,000
47,500
60,000

2.8 3.9

4.9 16.2

16.2 16.2

12.5 12.2

12.2 HEATING MODE

HIGH HEATING
CAPACITY (Btuh)

HIGH HEAT
COP

LOW HEATING
CAPACITY (Btuh)

LOW HEAT
COP 50GCQ HSPF
M04
M05
M06

8.3 8.3

8.3 34,000 3.8

3.7 3.9
17,600 2.4

2.3 2.4
45,500 24,400
55,500 30,000
LEGEND
AHRI — Air Conditioning, Heating and Refrigeration Institute ASHRAE — American Society of Heating, Refrigerating and Air Conditioning Engineers
COP
EER
HSPF
SEER
—
—
—
—
Coefficient of Performance
Energy Efficiency Ratio
Heating Seasonal Performance Factor
Seasonal Energy Efficiency Ratio
NOTES:

1. Rated and certified under AHRI Standard 210/240.

2. Ratings are based on:

Cooling Standard:80 °F (27°C ) db,67 °F (19°C ) w b indoor air temperature and 95°F (35°C )db outdoorairtemperature.

High Tem perature H eating R atings:47 °F (8°C )db,43°F (6°C )wb outdoorairtem perature and 70°F (21°C )enteringindoorcoilair.

Low Tem perature H eating R atings:17 °F (–8°C ) db,15 °F (–9°C ) wb outdoorairtem perature and 70°F (21°C )enteringindoorcoilair.

3. All 50GCQ units comply with ASHRAE 90.1 Energy Standard for minimum SEER and EER requirements.

SOUND RATINGS TABLE
COOLING OUTDOOR SOUND (dB) AT 60 Hz
STAGES 50GCQ UNIT
M04
A-WEIGHTED 63 125 250 500 1000 2000 4000

59.3 8000
2 75.4 81.8 81.8 77.0 72.6 69.9 64.6 55.6
LEGEND
dB — Decibel
NOTES:

1. Outdoor sound data is measured in accordance with AHRI. 3. A-weighted sound ratings filter out very high and very low frequencies,to beterapproxim atethe response of“average”hum an ear.

A-weighted measurements for Carrier units are taken in accordance with AHRI.

2. Measurements are expressed in terms of sound power. Do not compare these values to sound pressure values because sound pressure depends on specific environmental factors which normally do not match individual applications. Sound power values are independent of the environment and therefore more accurate.

MINIMUM - MAXIMUM AIRFLOW RATINGS (CFM) — COOLING UNITS AND ACCESSORY ELECTRIC HEAT

COOLING

MINIMUM
ELECTRIC HEAT*

UNIT MINIMUM MINIMUM

AIRFLOW CFM

MAXIMUM

AIRFLOW CFM

MINIMUM MAXIMUM
ARIFLOW CFM 2-SPEED AIRFLOW 2-SPEED AIRFLOW AIRFLOW CFM (LOW SPEED) (HIGH SPEED) 50GCQM04
50GCQM05
50GCQM06
900 675
900
900 1500
2000
2500
900 1500
2000
2500
1200
1500
1200 1200
1125 1500 1500
* Electric heat modules are available as both factory-installed options or field-installed accessories for 50GCQ units. 5 MINIMUM - MAXIMUM AIRFLOWS (CFM) COOLING AND ELECTRIC HEAT

COOLING ELECTRIC HEATERS
Minimum CFM
900
UNIT Minimum CFM Minimum
CFM
Minimum CFM 2-Speed
Fan Motor (at High Speed)
Maximum
CFM 2-Speed Fan Motor (at Low Maximum CFM
Speed)
50HCQA04
50HCQA05
50HCQA06
50HCQA07
50HCQD07
50HCQD08
50HCQD09
50HCQD12
900 N/A
N/A
N/A
N/A
1500
2000
2500
3000
3000
3750
4250
5000
1500
2000
2500
3000
3000
3750
4250
5000
1200
1500
1800
1800
2250
2550
3000
1200
1500
1800
1800
2250*
2252*
3000*

N/A N/A

N/A N/A
1800
2250
2873
3380
1200
1500
1915
2253
* Minimum electric heat CFM exceptions:

UNIT UNIT VOLTAGE HEATER kW

17.0 UNIT CONFIGURATION REQUIRED MINIMUM CFM
2800
2350
3550
3420
3040
3150
3520
3420
3610
50HCQD08
50HCQD09 575 Horizontal or Vertical 34.0

50.0 Vertical
Horizontal
Horizontal or Vertical
Vertical
230 50.0

43.5 50HCQD12 50.0

33.5 Vertical 575 33.5 Horizontal

26.5 Vertical

SOUND PERFORMANCE
50HCQ OUTDOOR SOUND (dB) AT 60 Hz
UNIT A-Weighted 63 125

69.0 69.6

66.6 82.7

82.7 250

64.6 68.7

68.7 79.1

79.1 500

67.8 72.5

72.9 78.4

78.4 1000

70.7 72.8

74.5 75.4

75.4 2000

63.8 68.9

71.1 71.2

71.2 4000

60.9 65.0

67.6 67.8

67.8 8000

59.0 61.2

62.6 62.9

62.9 A04
A05
A06
A07
D07
76 79
79 81
81 51.8

56.1 57.7

86.7 86.7
D09
D12
87 83

61.7 61.0

74.7 67.3

77.4 75.1

82.6 77.7

84.9 78.1

81.9 75.5

78.8 71.2

75.9 66.7
LEGEND NOTES:
dB —Decibel 1. Outdoor sound data is measure in accordance with AHRI standard 270.

3. A-weighted sound ratings filter out very high and very low frequencies, to better approximate the response of “average” human ear.

A-weighted measurements for Carrier units are taken in accordance with AHRI standard 270. 5 Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Receiver R1 Fl G Lr,lim dB(A) Leq,d 45.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

45.8 18.4

32.1 9.2

41.4 14.9

32.9 6.0

37.3 9.4

37.7 8.9

38.3 9.1

33.9 -1.1

23.3 -28.8
-50.1
-36.9
-23.6
-13.4
-7.2

1.8 -97.1

0.2 -41.8 -36.2 -32.7 -17.7 -13.4 -20.0

12.1 -37.5 -31.4 -27.5 -14.5 -9.5 -15.5

10.4 -36.8 -31.2 -27.7 -15.3 -10.9 -17.6
-12.7
-7.7
-11.5
-5.8
-13.4
-6.9
-12.2
-4.9
-13.1
-4.9
-12.1
-3.1
-12.0
-2.2
-12.0
-1.3
-9.1

2.5 -8.3

4.2 -13.5
-0.1
-12.8

1.5 -11.9

4.4 -14.7

1.5 -14.8

1.2 -19.7
-4.0
-21.6
-6.2
-28.0
-13.1
-5.4
-34.9
-20.7
-10.7
-3.3
-70.0 -92.9
-58.2 -82.9
-40.2 -58.2 -83.6
-25.8 -37.8 -54.7 -76.5
-16.4 -23.9 -35.0 -49.6
-81.3
-10.3

0.3 -9.1 -11.0

1.1 -9.8 -10.7

2.9 -9.6 -9.6 -9.5 -6.6 -5.8 1.1 2.8 3.8 1.2 1.3 -3.2 -4.5

20.7 -29.6 -23.6 -19.6

24.0 -23.5 -17.6 -13.7
-6.6
-0.8
-1.7

4.0 -7.7
-2.1

2.2 3.0 4.8 5.6 6.5 10.2 13.6 9.4 11.0

13.6 -24.2
-24.1
-23.4
-23.9
-23.8
-24.3

8.3 11.9 9.3 9.5 5.4 4.7 0.3

6.0 7.8 6.6 8.3 8.1 9.9 10.7 11.4 15.0 16.6 12.1 14.2 11.4 -24.2
-24.0
-23.9
-24.2
-24.1
-25.3

10.1 -26.4
-25.7
-25.6
-25.5
-23.9
-11.3
-11.4
-17.2
-18.5
-9.5

11.5 -24.4
-24.2
-24.1
-24.4
-24.2
-25.6

10.8 -26.7
-26.0
-25.8
-25.7
-24.1
-11.6
-11.7
-18.0
-19.2
-9.8

7.4 7.0 3.3 0.9
-10.4 -23.7 -41.2 -35.7 -21.4 -21.1 -19.8
-10.2 -23.6 -41.1 -35.7 -21.3 -21.0 -19.7
-10.1 -23.5 -41.0 -35.6 -21.2 -20.9 -19.7
-10.1 -23.4 -40.9 -35.5 -21.1 -20.8 -19.6
-9.9 -23.3 -40.8 -35.4 -21.0 -20.7 -19.5
-10.6 -23.7 -41.2 -35.8 -21.5 -21.2 -19.9
-27.3
-27.1
-27.0
-26.9
-26.8
-27.4
-5.0
-24.1
-24.0
-23.9
-23.8
-23.7
-24.3
-1.0
-28.1
-28.0
-27.9
-27.7
-27.6
-28.2
-2.5
-23.9
-23.8
-23.7
-23.6
-23.5
-24.0

3.2 -29.8
-29.7
-29.6
-29.5
-29.4
-29.9
-1.8
-26.5
-26.4
-26.3
-24.9
-24.8
-26.6

0.2 -22.3
-22.2
-22.1
-22.0
-21.9
-22.4

4.4 -23.5
-23.4
-23.3
-23.2
-21.9
-23.6

4.4 -19.8
-19.7
-19.6
-19.5
-19.3
-19.9

8.4 -21.8
-21.7
-21.6
-21.5
-21.4
-21.9

6.5 -23.5
-23.4
-23.3
-23.2
-23.1
-23.6

6.4 -25.8
-25.6
-25.5
-25.9
-25.7
-26.9

7.4 -29.3
-29.1
-28.9
-29.2
-29.0
-30.5

7.2 -34.2
-33.9
-33.7
-34.0
-33.8
-35.4

4.3 -41.6
-41.3
-41.1
-41.2
-41.0
-42.9

0.1 -51.4
-51.0
-50.7
-50.8
-50.4
-52.7
-4.9
-63.5
-63.1
-62.6
-62.6
-62.1
-64.9
-9.7
-80.6
-80.0
-79.8
-79.1
-82.8

18.6 -9.9 -26.9 -20.9 -3.6 -2.7 -0.7 -16.8 -24.4 -33.9 -44.0 -11.2 -24.1 -41.6 -36.2 -21.8 -21.5 -20.2 -85.8
-11.1 -24.0 -41.5 -36.1 -21.7 -21.4 -20.2
-11.0 -23.9 -41.4 -36.0 -21.6 -21.4 -20.1
-10.7 -23.8 -41.3 -35.9 -21.6 -21.3 -20.0
-9.7 -23.2 -40.7 -35.3 -20.9 -20.7 -19.4
-3.3 -21.6 -39.1 -33.7 -19.4 -19.1 -17.8
-3.1 -21.7 -39.2 -33.8 -19.5 -19.2 -18.0
-6.5 -21.8 -39.4 -34.0 -19.6 -19.3 -18.1
-7.0 -21.9 -39.5 -34.1 -19.7 -19.4 -18.2
-1.8 -21.1 -38.6 -33.2 -18.9 -18.6 -17.4
-1.6 -21.2 -38.7 -33.3 -19.0 -18.7 -17.5
-1.2 -21.4 -38.9 -33.5 -19.2 -18.9 -17.6
-3.0 -21.5 -39.0 -33.6 -19.3 -19.0 -17.7
-9.0 -22.5 -40.0 -34.6 -20.2 -20.0 -18.7
-9.6 -22.9 -40.4 -35.0 -20.7 -20.4 -19.1
-9.7 -23.0 -40.5 -35.1 -20.8 -20.5 -19.2
-9.6 -23.1 -40.6 -35.2 -20.8 -20.6 -19.3
-8.8 -22.4 -39.9 -34.5 -20.1 -19.9 -18.6
-8.6 -22.2 -39.7 -34.3 -19.9 -19.7 -18.4
-7.3 -22.1 -39.6 -34.2 -19.8 -19.6 -18.3
-8.7 -22.3 -39.8 -34.4 -20.0 -19.8 -18.5
-27.8
-27.7
-27.6
-27.5
-26.7
-24.7
-24.8
-25.0
-25.1
-24.1
-24.2
-24.4
-24.6
-25.8
-26.3
-26.4
-26.6
-25.7
-25.4
-25.3
-25.5
-24.7
-24.6
-24.5
-24.4
-23.6
-21.6
-21.7
-21.9
-22.0
-21.0
-21.1
-21.3
-21.4
-22.7
-23.2
-23.3
-23.4
-22.5
-22.3
-22.1
-22.4
-28.6
-28.5
-28.4
-28.3
-27.5
-25.5
-25.7
-25.8
-25.9
-24.9
-25.1
-25.2
-25.4
-26.6
-27.1
-27.3
-27.4
-26.5
-26.2
-26.1
-26.3
-24.4
-24.3
-24.2
-24.1
-23.4
-21.6
-21.8
-21.9
-22.0
-18.7
-21.2
-21.4
-21.5
-22.6
-23.1
-23.2
-23.3
-22.5
-22.3
-22.1
-22.4
-30.3
-30.2
-30.1
-30.0
-29.3
-25.1
-24.0
-24.1
-24.2
-24.6
-24.7
-24.9
-25.0
-24.9
-29.0
-29.1
-29.2
-24.7
-24.5
-24.4
-24.6
-27.0
-26.9
-26.8
-26.7
-24.7
-24.2
-21.9
-22.0
-22.1
-23.7
-23.8
-23.9
-24.1
-23.9
-24.4
-24.5
-24.6
-23.8
-22.4
-22.2
-23.7
-24.0
-23.9
-23.8
-22.5
-21.8
-21.3
-18.9
-19.1
-19.2
-20.7
-20.9
-21.0
-21.1
-19.8
-21.5
-21.6
-21.7
-19.7
-19.5
-19.3
-19.6
-24.0
-23.9
-23.8
-23.7
-21.8
-22.5
-20.2
-20.3
-20.4
-21.9
-22.1
-22.2
-22.3
-21.1
-21.5
-21.6
-21.7
-20.9
-20.7
-20.6
-20.8
-21.4
-21.3
-21.2
-20.0
-19.2
-19.9
-17.6
-17.7
-17.8
-19.3
-19.4
-19.6
-19.7
-18.5
-18.9
-19.0
-19.1
-18.3
-18.1
-18.0
-18.2
-22.3
-22.2
-22.1
-22.0
-21.3
-21.9
-19.7
-19.9
-20.0
-21.3
-21.4
-21.6
-21.7
-20.6
-21.0
-21.1
-21.2
-20.5
-20.2
-20.1
-20.3
-24.0
-23.9
-23.8
-23.7
-23.0
-11.5
-11.6
-16.1
-16.9
-10.1
-10.0
-9.4
-24.7
-24.6
-24.5
-24.4
-22.5
-11.3
-11.4
-16.3
-17.3
-9.7
-27.9
-27.2
-27.1
-27.0
-25.6
-13.2
-13.3
-18.7
-20.0
-11.6
-11.4
-10.8
-12.9
-26.0
-26.5
-26.6
-25.5
-25.8
-25.6
-20.5
-25.7
-31.7
-31.0
-30.8
-30.7
-28.9
-16.6
-16.6
-23.4
-24.4
-14.7
-14.2
-13.9
-16.6
-28.8
-29.5
-29.7
-28.7
-28.6
-28.2
-24.7
-28.4
-36.7
-36.0
-35.8
-35.6
-33.6
-21.2
-21.2
-28.5
-29.2
-19.2
-18.8
-18.5
-21.4
-33.3
-34.1
-34.3
-33.4
-33.0
-32.6
-29.5
-32.8
-44.4
-43.6
-43.3
-43.1
-40.7
-28.2
-28.2
-35.7
-36.3
-26.0
-25.6
-25.4
-28.3
-40.0
-41.1
-41.4
-40.5
-39.7
-39.2
-36.6
-39.5
-54.5
-53.7
-53.4
-53.1
-50.1
-37.0
-37.1
-44.6
-45.1
-34.7
-34.2
-34.1
-37.2
-48.8
-50.2
-50.6
-49.8
-48.4
-47.7
-45.5
-48.1
-67.2
-66.3
-65.8
-65.4
-61.6
-47.5
-47.6
-55.0
-55.5
-44.7
-44.4
-44.4
-47.6
-59.5
-61.3
-61.8
-61.2
-58.9
-58.0
-56.0
-58.4
-84.7
-84.1
-83.5
-78.5 -99.8
-62.6 -81.3
-62.8 -81.6
-69.9 -88.3
-70.5 -89.1
-59.3 -77.0 -99.8
-59.0 -77.0
-59.3 -77.6
-62.6 -81.0
-75.0 -94.6
-77.6 -98.1
-78.3 -99.0
-77.8 -98.9
-74.3 -93.5
-73.0 -91.7
-71.2 -90.0
-73.6 -92.6
-9.5 -9.2 -9.4
-8.9 -8.7 -9.0
-11.0
-22.2
-22.6
-22.8
-22.9
-22.1
-21.9
-17.4
-22.0
-10.9
-22.9
-23.4
-23.5
-22.3
-22.8
-22.5
-17.9
-22.7
-11.1
-24.1
-24.7
-24.8
-23.8
-23.9
-23.6
-19.0
-23.8
-11.6
-24.2
-24.8
-24.9
-23.9
-24.0
-23.6
-19.6
-23.8
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A)
-0.5
dB(A) dB(A) dB(A)
-3.5
dB(A) dB(A) dB(A)
-8.7
dB(A) dB(A)
Leq,d 4.6 -14.3 -11.0 -4.2 -0.4 -29.4
Receiver R2 Fl G Lr,lim dB(A) Leq,d 46.2 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

46.1 19.4

32.0 8.4

41.5 14.7

33.2 7.5

37.7 12.3
-0.3

0.6 38.2

11.5 1.1

38.7 10.8

1.0 34.6

1.1 24.3
-24.7
-33.1
-34.4
-15.5
-10.5
-5.2

2.2 -83.0

12.6 -39.0 -32.9 -29.0 -16.0 -11.0 -17.0

13.2 -39.5 -33.5 -29.5 -16.5 -11.5 -17.6
-9.0
-9.5
-7.1 -8.2
-8.7
-6.2
-6.8
-4.1 -2.1
-2.3
-1.2
-0.3

1.9 3.6

4.5 5.3

6.2 2.8 3.7 0.9 -3.9
-3.5

7.5 -5.6 -11.9
-12.0

1.4 -18.4
-19.0
-3.4
-52.1 -73.6
-7.6 -4.2 1.9 3.6

10.9 12.0

15.3 -6.1
-6.0
-5.9
-5.8
-5.6
-6.2

1.0 4.4

12.7 13.0

16.1 -7.8
-7.7
-7.0
-6.9
-6.8
-7.9

0.0 1.6 1.4

11.8 11.2

13.6 -5.1
-4.9
-4.3
-3.8
-3.7
-5.2

2.8 -5.5 -54.4 -77.2

20.2 -36.2 -30.2 -26.2 -13.2 -8.2 -14.2 -6.1 -4.1 -5.2 -3.1 -1.1 0.9 3.0 8.9 10.9

13.9 18.2
-6.6
-6.5
-6.4
-6.3
-6.2
-6.7

0.7 7.8 11.4

10.8 13.4
-5.0
-4.8
-4.2
-3.7
-3.6
-5.1

2.5 6.5 -30.8 -47.1 -70.0 -99.5
-21.4 -31.4 -45.9 -64.8
-14.4 -21.8 -32.4 -46.3
-59.7 -80.9

21.9 -30.6 -24.6 -20.6

25.4 -23.3 -17.3 -13.3
-7.6
-0.4
-0.1

4.6 -6.2
-1.5

1.9 3.8 2.7 4.6 4.6 6.5 7.4 8.4 12.2

15.8 -5.7
-5.6
-5.5
-5.4
-5.2
-5.8

0.2 10.3

13.7 -6.9
-6.7
-6.6
-6.5
-6.4
-7.0

0.3 7.2 6.5 2.1 -1.1

6.7 8.5 7.4 9.0 8.9 10.7 11.4
-9.5
-9.4
-9.3
-9.2
-9.1
-9.6
-4.9
-10.1
-10.0
-9.9
-9.8
-8.9
-7.3
-6.8
-6.9
-7.1
-8.3
-8.5
-8.6
-8.8
-8.0
-8.6
-8.7
-8.8
-7.9
-7.4
-7.2

12.1 -9.6
-9.5
-9.4
-9.2
-9.1
-9.7
-5.6
-10.1
-10.0
-9.9
-9.8
-9.0
-7.4
-6.8
-7.0
-7.1
-8.4
-8.6
-8.7
-8.9
-8.1
-8.6
-8.7
-8.9
-7.9
-7.4
-7.3

9.6 9.2 5.5 3.0

3.6 -22.0 -39.0 -33.0 -18.0 -17.1 -15.1

3.7 -21.9 -38.9 -32.9 -17.9 -17.0 -15.0

4.0 -21.8 -38.8 -32.8 -17.8 -16.9 -14.9

4.3 -21.7 -38.7 -32.7 -17.7 -16.8 -14.8

4.4 -21.6 -38.6 -32.6 -17.6 -16.7 -14.7

3.5 -22.1 -39.1 -33.1 -18.1 -17.2 -15.2
-21.5
-21.4
-21.3
-21.2
-21.0
-21.7
-6.2
-17.6
-17.5
-17.4
-17.2
-17.1
-17.7
-2.7
-20.7
-20.6
-20.4
-20.3
-20.2
-20.8
-6.2
-16.7
-16.6
-16.4
-16.3
-16.2
-16.8
-3.5
-17.8
-17.7
-17.6
-16.6
-16.5
-17.9
-9.3
-15.1
-15.0
-14.8
-14.7
-14.6
-15.2
-8.2
-9.9
-9.7
-9.1
-8.6
-8.4
-10.0
-1.1
-10.6
-10.5
-10.3
-10.2
-8.2
-6.0
-5.7
-5.9
-6.6
-5.6
-5.8
-5.3
-5.5
-7.4
-8.1
-8.3
-8.1
-7.2
-7.0
-6.8
-14.6
-14.4
-13.7
-13.2
-13.0
-14.8
-4.4
-21.8
-21.5
-20.9
-20.3
-20.1
-22.0
-6.5
-31.3
-30.9
-30.2
-29.7
-29.3
-31.6
-12.1
-32.8
-32.5
-32.2
-31.9
-29.0
-23.9
-23.8
-24.2
-25.2
-21.3
-21.9
-21.8
-22.6
-26.9
-28.3
-28.6
-28.6
-26.5
-25.9
-25.6
-42.9
-42.4
-41.6
-41.0
-40.6
-43.3
-17.7
-45.0
-44.6
-44.2
-43.8
-40.1
-32.2
-32.5
-33.7
-34.7
-30.0
-30.5
-30.0
-31.0
-37.1
-39.0
-39.5
-39.6
-36.5
-35.7
-35.2
-59.1 -80.0
-58.2 -79.0
-57.5 -78.1
-56.8 -77.2
-60.3 -81.7

11.7 -8.8 -25.9 -20.1 -3.9 -3.2 -1.5 -25.9 -34.7 -45.2 -56.2

3.0 -22.5 -39.5 -33.5 -18.5 -17.5 -15.5 -62.7 -85.1

3.1 -22.4 -39.4 -33.4 -18.4 -17.4 -15.5

3.2 -22.3 -39.3 -33.3 -18.3 -17.4 -15.4

3.3 -22.2 -39.2 -33.2 -18.2 -17.3 -15.3

4.6 -21.5 -38.5 -32.5 -17.5 -16.5 -14.5

6.7 -16.9 -33.9 -28.0 -13.0 -12.1 -10.2

7.0 -17.0 -34.0 -28.1 -13.2 -12.3 -10.4

6.9 -17.2 -34.2 -28.2 -13.3 -12.4 -10.5

6.4 -17.3 -34.3 -28.3 -13.4 -12.5 -10.6
-22.2
-22.0
-21.9
-21.8
-20.9
-16.2
-16.3
-16.5
-16.7
-15.5
-15.7
-15.8
-16.0
-19.9
-20.5
-20.6
-20.7
-19.7
-17.0
-16.8
-18.2
-18.1
-18.0
-17.9
-16.9
-12.4
-12.5
-12.7
-12.8
-11.7
-11.9
-12.0
-12.2
-16.0
-16.5
-16.7
-16.8
-15.8
-13.2
-13.0
-21.3
-21.2
-21.1
-21.0
-20.0
-15.6
-15.7
-15.9
-16.1
-14.9
-15.1
-15.2
-15.4
-19.0
-19.6
-19.8
-19.9
-18.9
-16.4
-16.2
-17.2
-17.1
-17.0
-16.9
-16.1
-11.4
-11.6
-11.8
-11.9
-13.3
-13.4
-13.6
-13.8
-15.2
-15.7
-15.8
-15.9
-15.0
-14.7
-12.1
-18.3
-18.2
-18.1
-18.0
-16.4
-15.2
-14.6
-14.7
-14.9
-16.3
-16.4
-16.6
-16.7
-15.6
-16.0
-16.2
-16.3
-15.4
-15.1
-15.0
-15.6
-15.5
-15.4
-15.3
-14.5
-13.2
-12.6
-12.8
-12.9
-14.3
-14.5
-14.7
-14.8
-13.6
-14.1
-14.2
-14.4
-13.5
-13.2
-13.1
-6.3
-6.2
-6.1
-5.9
-5.1
-3.6
-3.0
-3.1
-3.3
-4.6
-4.7
-4.9
-5.0
-4.2
-4.7
-4.9
-5.0
-4.0
-3.6
-3.4
-7.2
-7.1
-7.0
-6.9
-6.0
-3.7
-3.8
-4.0
-4.1
-3.4
-3.5
-3.1
-3.2
-5.2
-5.7
-5.8
-5.9
-5.1
-4.4
-4.3
-7.4
-7.3
-7.2
-7.1
-6.2
-4.0
-3.5
-3.7
-4.4
-3.6
-3.8
-3.3
-3.5
-5.4
-5.9
-6.0
-6.1
-5.2
-4.6
-4.5
-6.7
-6.6
-6.5
-6.4
-5.0
-3.2
-2.8
-2.9
-3.6
-2.9
-3.0
-2.6
-2.7
-4.6
-5.1
-5.3
-4.9
-4.5
-3.9
-3.8
-8.4
-8.3
-8.2
-8.1
-6.6
-4.8
-4.3
-4.5
-5.2
-4.5
-4.6
-4.1
-4.3
-6.2
-6.8
-6.9
-6.5
-6.1
-5.5
-5.4
-5.6
-5.5
-5.3
-5.2
-3.5
-1.8
-1.4
-1.6
-2.3
-1.5
-1.6
-1.2
-1.4
-2.9
-3.5
-3.6
-3.3
-2.7
-2.6
-2.5
-5.7
-5.6
-5.5
-5.3
-3.5
-1.7
-1.3
-1.5
-2.2
-1.3
-1.4
-1.0
-1.2
-2.8
-3.5
-3.6
-3.4
-2.6
-2.5
-2.4
-15.5
-15.3
-15.1
-15.0
-12.8
-10.0
-9.7
-23.0
-22.8
-22.5
-22.3
-19.8
-16.1
-15.9
-16.2
-17.1
-15.4
-15.7
-15.4
-15.6
-18.3
-19.4
-19.7
-19.6
-18.0
-17.7
-17.4
-62.2 -84.3
-61.5 -83.4
-61.0 -82.6
-56.2 -76.2
-45.4 -60.8 -81.5
-46.0 -61.6 -82.6
-47.3 -63.1 -84.5
-48.5 -64.3 -85.9
-42.7 -58.1 -77.8
-43.3 -58.9 -78.9
-42.4 -58.2 -78.5
-43.4 -59.5 -80.0
-51.9 -69.3 -92.6
-54.5 -73.7 -97.5
-55.2 -74.7 -98.8
-55.6 -75.4
-10.0
-10.8

6.8 -16.4 -33.4 -27.5 -12.5 -11.6 -9.5

6.6 -16.5 -33.5 -27.6 -12.6 -11.8
-9.7
-9.8 -9.7

6.9 -16.6 -33.7 -27.7 -12.8 -11.9 -10.0

6.8 -16.8 -33.8 -27.8 -12.9 -12.0 -10.1

5.3 -20.7 -37.7 -31.7 -16.7 -15.8 -13.8

4.8 -21.2 -38.2 -32.2 -17.2 -16.2 -14.2

4.6 -21.3 -38.3 -32.3 -17.3 -16.3 -14.3

4.8 -21.4 -38.4 -32.4 -17.4 -16.4 -14.4

5.5 -20.6 -37.6 -31.6 -16.6 -15.6 -13.6

6.0 -17.5 -34.5 -28.6 -13.7 -12.8 -10.9

6.2 -17.4 -34.4 -28.5 -13.5 -12.7 -10.7
-9.3
-9.5
-11.7
-12.6
-12.8
-12.6
-11.5
-11.2
-11.0
-51.2 -68.3 -91.2
-49.0 -66.4 -87.8
-48.4 -65.5 -86.6
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz 8kHz 10kHz 12.5kHz 16kHz 20kHz dB(A) dB(A)
-4.1
dB(A)
-5.7
dB(A) dB(A)
-2.7
dB(A)
-7.2
dB(A) dB(A)
-17.9
dB(A)
-26.3
dB(A) dB(A) dB(A) dB(A) dB(A)
Leq,d -50.5 -67.3 -89.0
Leq,d

5.9 -17.6 -34.7 -28.7 -13.8 -12.9 -11.0

21.5 -10.1
-17.1 -13.3
-4.3
-16.5 -14.9 -15.3

5.1 -13.3 -7.5 -7.6 -3.7 -4.5 -4.8 -2.8 -11.5

12.8 -36.1

12.6 16.3 17.7 -6.7
Receiver R3 Fl G Lr,lim dB(A) Leq,d 46.5 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

46.4 21.1

32.4 10.7

42.0 17.1

33.7 7.9

38.0 11.0

1.2 38.4

13.0 2.7

39.0 13.7

2.8 34.5

4.9 23.9
-18.7
-27.6
-31.1
-10.9
-7.5

2.1 -72.7

14.1 -37.9 -31.9 -27.9 -14.9 -10.0 -16.0 -7.9
-6.1
-6.0 -7.1
-5.3
-5.1
-3.4
-5.1 -3.2
-1.6

0.3 -0.7

5.1 4.0

6.9 5.6

4.4 5.0

5.4 6.6

2.8 3.4
-1.7
-1.5
-3.0 -8.6
-9.9
-14.2
-16.5

0.0 -44.7 -63.7 -90.3

14.1 -38.5 -32.5 -28.5 -15.6 -50.0 -71.2

20.9 -34.8 -28.7 -24.7 -11.7
-8.1 -14.1
-6.7 -12.7
-4.2 -3.4 0.2 1.2 3.7 -3.5
-4.7 -0.2 -1.2 0.8 0.9 2.9 3.9 5.0 9.1 12.8

16.9 16.2
-7.7
-7.5
-7.4
-7.3
-7.1
-7.8
-15.3
-8.3
-8.2
-8.0
-7.9
-7.0
-3.4
-4.4
-4.6
-4.8
-3.5
-3.5
-5.1
-5.0
-6.0
-6.6
-6.7
-6.8
-5.8
-5.0

8.9 11.0

14.2 13.0
-7.1
-6.9
-6.8
-6.7
-6.5
-7.2
-15.2
-7.7
-7.6
-7.5
-7.4
-6.4
-2.9
-3.9
-4.1
-4.2
-2.9
-3.0
-4.5
-4.6
-5.3
-5.9
-6.1
-6.2
-5.2
-4.5

12.5 15.0

13.5 -8.7
-8.6
-8.4
-8.3
-8.1
-8.8
-16.2
-9.4
-9.2
-9.1
-9.0
-8.0
-4.4
-5.4
-5.6
-5.7
-4.5
-4.5
-6.0
-6.1
-6.9
-7.5
-7.7
-7.8
-6.7
-6.1

10.7 12.4

10.6 -6.3
-6.2
-6.0
-5.9
-5.7
-6.5
-13.5
-7.0
-6.9
-6.8
-6.6
-5.5
-1.9
-3.0
-3.1
-3.3
-2.0
-2.0
-3.6
-3.6
-4.4
-5.1
-5.2
-5.4
-4.2
-3.6

12.0 12.7

10.6 -6.2
-6.1
-5.9
-5.7
-5.5
-6.4
-12.8
-7.0
-6.9
-6.7
-6.6
-5.4
-1.6
-2.7
-2.8
-3.0
-1.7
-1.6
-3.3
-3.3
-4.1
-4.9
-5.0
-5.2
-3.9
-3.4

9.0 8.7 4.1 -24.6 -38.7 -58.7 -84.5
-17.8 -26.8 -39.6 -56.0
-17.1 -24.3 -34.8 -48.7
-55.0 -73.5 -97.6
-54.3 -72.6 -96.3
-53.6 -71.7 -95.0
-53.0 -70.8 -92.8
-52.3 -69.9 -92.6
-55.6 -74.4 -98.7
-41.0 -48.8 -58.6 -69.2
-58.1 -77.9

24.1 -28.1 -22.1 -15.7

23.6 -25.8 -17.4 -13.5
-2.7
-0.6

2.2 4.3
-3.9
-1.8

4.1 6.0 4.8 6.7 6.6 8.4 9.2 10.7

11.2 -10.6
-10.4
-10.3
-10.2
-10.0
-10.7
-16.3
-11.2
-11.1
-11.0
-10.8
-9.9

14.9 14.7
-6.7
-6.6
-6.4
-6.3
-6.1
-6.8
-12.6
-7.3
-7.2
-7.1
-7.0
-6.0
-3.3
-3.5
-3.7
-3.8
-2.3
-2.4
-4.0
-4.1
-4.9
-5.5
-5.7
-5.8
-4.7
-4.1

12.6 11.5
-7.8
-7.7
-7.6
-7.4
-7.3
-8.0
-16.0
-8.5
-8.4
-8.2
-8.1
-7.1
-3.7
-4.7
-4.8
-4.9
-3.6
-3.7
-5.3
-5.3
-6.2
-6.7
-6.9
-7.0
-6.0
-5.2

8.6 8.2 4.3 1.4

6.4 8.2 6.9 8.5 8.3 10.0 10.6
-10.5
-10.4
-10.3
-10.1
-10.0
-10.7
-15.3
-11.2
-11.1
-10.9
-10.8
-9.8

6.4 6.0 2.2 -0.2 -8.2

2.7 -16.3 -33.3 -27.3 -17.1 -16.1 -14.1

2.9 -16.2 -33.2 -27.2 -17.0 -16.0 -14.0

3.0 -16.1 -33.1 -27.1 -16.8 -15.9 -13.9

3.2 -16.0 -33.0 -27.0 -16.7 -15.8 -13.8

3.3 -15.9 -32.8 -26.8 -16.6 -15.7 -13.7

2.7 -16.4 -33.4 -27.4 -12.4 -16.2 -14.2
-0.9 -16.7 -32.0 -26.9 -10.6 -10.9 -10.1

2.1 -16.8 -33.8 -27.8 -12.8 -16.6 -14.6

2.3 -16.7 -33.7 -27.7 -12.7 -16.5 -14.6

2.4 -16.6 -33.6 -27.6 -12.6 -16.4 -14.4

2.5 -16.5 -33.5 -27.5 -12.5 -16.3 -14.3

3.5 -15.8 -32.7 -26.7 -16.5 -15.5 -13.5
-20.3
-20.2
-20.0
-19.9
-19.8
-20.5
-15.8
-21.0
-20.9
-20.7
-20.6
-19.6
-14.7
-14.8
-14.8
-14.9
-15.1
-14.5
-14.6
-14.6
-18.5
-19.2
-19.3
-19.5
-18.3
-15.1
-16.4
-16.3
-16.1
-16.0
-15.8
-16.5
-13.1
-17.1
-17.0
-16.8
-16.7
-15.7
-11.0
-11.1
-11.2
-11.2
-11.4
-10.8
-10.9
-10.9
-14.6
-15.2
-15.4
-15.5
-14.4
-11.4
-19.5
-19.3
-19.2
-19.1
-18.9
-19.6
-17.3
-20.2
-20.0
-19.9
-19.8
-18.8
-14.3
-14.4
-14.5
-14.6
-14.6
-14.1
-14.2
-14.3
-17.6
-18.3
-18.5
-18.6
-17.5
-14.7
-15.6
-15.4
-15.3
-15.2
-15.0
-15.7
-13.1
-16.2
-16.1
-15.9
-15.8
-14.9
-9.8
-18.0
-17.9
-17.7
-17.6
-17.5
-18.1
-19.1
-18.6
-18.5
-18.4
-18.3
-17.3
-14.8
-15.0
-15.2
-15.4
-16.4
-16.7
-16.9
-17.1
-16.3
-16.9
-17.0
-17.2
-16.1
-15.7
-16.1
-16.0
-15.8
-15.7
-15.5
-16.2
-18.2
-16.7
-16.6
-16.5
-16.4
-15.4
-12.8
-13.0
-13.3
-13.4
-14.5
-14.7
-14.9
-15.1
-14.3
-14.9
-15.1
-15.2
-14.1
-13.8
-10.7
-10.5
-10.3
-10.2
-10.0
-10.9
-16.4
-11.6
-11.4
-11.3
-11.1
-9.8
-15.0
-14.8
-14.5
-14.3
-14.1
-15.2
-19.3
-16.0
-15.8
-15.6
-15.4
-13.8
-9.4
-21.5
-21.2
-21.0
-20.7
-20.4
-21.8
-23.6
-22.8
-22.6
-22.3
-22.1
-20.1
-14.0
-16.1
-16.3
-16.6
-12.6
-13.7
-16.7
-15.3
-18.1
-19.3
-19.6
-19.8
-17.8
-17.1
-30.0
-29.6
-29.2
-28.9
-28.5
-30.3
-28.7
-31.7
-31.4
-31.0
-30.7
-28.2
-20.3
-22.0
-22.3
-22.6
-19.3
-18.8
-20.8
-20.2
-25.6
-27.1
-27.5
-27.8
-25.2
-23.4
-40.1
-39.6
-39.1
-38.7
-38.2
-40.6
-33.7
-42.4
-42.0
-41.5
-41.1
-37.7
-27.3
-28.8
-30.3
-30.7
-26.9
-26.4
-28.5
-27.9
-34.3
-36.3
-36.8
-37.2
-32.8
-31.7
-57.5 -77.1
-56.9 -76.2
-56.3 -75.3
-51.7 -69.0 -91.3
-38.8 -52.6 -70.3 -90.9
-40.3 -54.2 -72.1 -92.9
-42.1 -56.3 -74.5 -95.7
-42.7 -57.0 -75.5 -97.1
-37.8 -50.9 -67.5 -86.6
-37.6 -50.9 -67.9 -87.5
-39.7 -53.1 -70.3 -90.1
-39.3 -52.9 -70.3 -90.5
-47.1 -62.7 -82.8
-49.7 -66.3 -87.7
-50.4 -67.2 -89.0
-51.0 -68.1 -90.1
-45.3 -60.7 -80.5
-44.0 -58.8 -78.0

7.0 -13.8 -31.9 -26.1 -11.4 -10.6

6.3 -13.9 -32.0 -26.2 -11.4 -10.7

6.1 -14.1 -31.0 -26.3 -11.5 -10.7

6.0 -14.2 -31.2 -26.3 -11.5 -10.8

6.9 -13.2 -32.9 -27.1 -12.2 -11.4

6.9 -13.3 -31.7 -26.0 -11.2 -10.6

5.6 -13.5 -31.8 -26.0 -11.3 -10.6

5.6 -13.6 -31.8 -26.1 -11.3 -10.6
-8.9
-8.9
-9.0
-9.0
-9.6
-8.8
-8.8
-8.9
-7.1 -7.2 -5.7
-10.0
-10.2
-10.4
-11.5
-11.7
-11.9
-12.1
-11.3
-14.4
-14.6
-14.7
-11.1
-10.8
-7.3 -7.3 -6.8 -10.5
-10.7
-10.9
-9.5
-7.4 -7.5 -7.0
-7.6 -7.7 -7.2
-9.0 -9.0 -5.9
-9.0 -9.1 -5.8 -9.4
-9.2 -9.3 -7.4 -11.1
-11.1
-12.2
-13.2
-13.4
-13.6
-12.0
-11.4
-9.3 -9.4 -7.5

4.6 -14.9 -31.8 -30.6 -15.6 -14.7 -12.7

3.9 -15.4 -32.4 -26.4 -16.1 -15.2 -13.2

3.8 -15.5 -32.5 -26.5 -16.3 -15.3 -13.3

3.6 -15.6 -32.6 -26.6 -16.4 -15.4 -13.4

4.8 -14.7 -31.7 -30.5 -15.5 -14.5 -12.5
-8.8 -8.8 -8.4
-9.4 -9.4 -9.2
-9.6 -9.6 -9.4
-9.7 -9.7 -9.6
-8.6 -8.6 -8.1

5.7 -14.5 -31.4 -26.5 -11.7 -10.9 -9.1 -7.9 -8.0 -7.6
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 3 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d

5.8 -14.3 -31.3 -26.4 -11.6 -10.9

5.4 -14.6 -31.6 -27.7 -12.8 -12.0 -10.1

20.5 -9.0
-9.1 -15.0
-16.0
-11.3
-12.2
-3.0
-14.6
-15.4
-10.6
-10.9
-15.6
-15.9

4.3 -13.6
-14.0
-7.7
-8.1
-7.8
-8.2

11.8 -4.0
-4.3
-4.9
-5.2
-5.1
-5.4

15.5 -4.3
-4.7
-5.9
-6.3
-3.4
-3.8

16.2 -3.2
-3.6
-7.4
-7.8
-11.1
-11.6

12.2 -16.8
-17.4
-23.0
-24.8
-31.2
-32.2
-4.3
-43.3 -58.0 -76.8 -98.7
-44.6 -59.7 -79.2
Receiver R4 Fl G Lr,lim dB(A) Leq,d 47.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

47.7 33.5 43.0

20.0 -4.8

34.8 10.7

39.2 15.4

2.5 39.8

16.6 3.9

40.2 16.5

4.2 36.2

9.2 26.3
-9.2

6.0 24.3 13.1 -56.4

15.4 -36.7 -30.7 -26.7 -13.7

15.6 -37.5 -31.4 -27.5 -14.5

22.0 -33.0 -27.0 -23.0 -10.0
-8.8 -14.8
-7.0 -13.0
-5.0 -11.0
-6.7
-5.0
-5.9
-4.1
-3.9
-2.2
-3.9 -2.0
-0.2

1.5 0.7

6.4 5.6

8.1 7.3

5.7 6.0

6.8 7.7

4.4 5.0

0.0 0.5
-1.0 -6.1
-6.5
-11.0
-12.1

2.3 -23.3
-25.2
-7.0
-39.0 -55.8 -79.5
-3.0 -2.1 1.7 4.3 5.0 -0.9 -41.9 -60.3 -85.9
-0.5 1.5 0.4 2.4 2.5 4.5 5.5 6.5 12.2

15.0 15.2
-5.4
-5.2
-5.1
-4.9
-4.7
-5.5
-14.6
-6.1
-6.0
-5.8
-5.7
-4.6
-0.3
-1.8
-1.6
-1.8
-3.1
-3.4
-3.6

0.0 14.1

17.0 16.8
-6.4
-6.2
-6.1
-6.0
-5.8
-6.5
-17.0
-7.1
-6.9
-6.8
-6.7
-5.6
-1.6
-3.1
-1.8
-1.8
-4.5
-4.7
-4.9
-1.4
-4.5
-5.1
-5.3
-5.5
-4.3

10.1 12.4

12.7 -6.5
-6.4
-6.2
-6.1
-5.9
-6.7
-17.3
-7.2
-7.1
-7.0
-6.8
-5.8
-1.7
-3.2
-2.0
-2.0
-4.6
-4.8
-5.0
-1.5
-4.6
-5.3
-5.5
-5.6
-4.4

12.1 13.8

14.3 -5.7
-5.6
-5.4
-5.3
-5.1
-5.9
-16.5
-6.4
-6.3
-6.2
-6.0
-5.0
-0.9
-2.3
-1.2
-1.2
-3.7
-3.9
-4.2
-0.6
-3.8
-4.5
-4.6
-4.8
-3.6

13.4 14.4

15.1 -7.3
-7.1
-7.0
-6.8
-6.7
-7.4
-17.3
-8.0
-7.9
-7.7
-7.6
-6.5
-2.3
-3.8
-2.7
-2.7
-5.2
-5.4
-5.7
-2.1
-5.3
-6.0
-6.2
-6.3
-5.1

11.2 11.6

12.5 -4.8
-4.7
-4.5
-4.3
-4.2
-5.0
-14.6
-5.5
-5.4
-5.3
-5.1
-4.0

0.4 12.0

11.7 12.7
-4.6
-4.4
-4.2
-4.1
-3.9
-4.7
-14.1
-5.3
-5.2
-5.0
-4.9
-3.7

0.9 8.6 9.1 5.2 -18.5 -30.3 -47.5 -69.7
-16.5 -23.5 -34.0 -47.7
-17.3 -25.9 -38.3 -54.2
-48.6 -63.1 -83.6

24.3 -25.6 -17.2 -13.3

24.3 -27.7 -21.7 -15.3
-0.3
-2.3

4.6 2.6
-1.5
-3.5

6.6 8.4 7.2 8.8 8.6 10.3 10.9

9.5 11.5

11.5 -9.3
-9.1
-9.0
-8.8
-8.6
-9.4
-18.8
-10.0
-9.9
-9.7
-9.6
-8.5
-5.5
-5.7
-5.5
-5.7
-7.0
-7.3
-7.5
-5.3
-7.2
-8.0
-8.1
-8.3
-7.0

7.5 7.1 3.3 0.7 -7.5

4.6 6.4 5.3 7.1 7.0 8.8 8.6 8.3 4.4 1.6 -7.1

4.1 -20.1 -37.0 -31.0 -16.0 -15.1 -13.1

4.3 -19.9 -36.9 -30.9 -15.9 -15.0 -13.0

4.4 -19.8 -36.8 -30.8 -15.8 -14.8 -12.8

4.6 -19.7 -36.7 -30.7 -15.7 -14.7 -12.7

4.8 -19.6 -36.5 -30.5 -15.5 -14.6 -12.6

4.0 -20.2 -37.1 -31.2 -16.2 -15.2 -13.2
-3.3 -17.6 -35.5 -28.5 -14.7 -15.0 -14.2

3.4 -20.6 -37.6 -31.6 -16.6 -15.7 -13.7

3.5 -20.5 -37.5 -31.5 -16.5 -15.6 -13.6

3.7 -20.4 -37.4 -31.4 -16.4 -15.4 -13.4

3.8 -20.3 -37.3 -31.3 -16.3 -15.3 -13.3

4.9 -19.4 -36.4 -30.4 -15.4 -14.4 -12.4

9.1 -12.4 -29.3 -28.1 -13.1 -12.2 -10.2

7.8 -12.5 -29.5 -28.3 -13.3 -12.3 -10.3
-19.0
-18.9
-18.7
-18.5
-18.4
-19.2
-18.0
-19.8
-19.6
-19.5
-19.3
-18.2
-15.3
-15.5
-12.8
-13.0
-14.4
-14.6
-14.8
-15.1
-16.9
-17.7
-17.9
-18.0
-16.7
-15.1
-14.9
-14.8
-14.6
-14.4
-15.2
-15.2
-15.8
-15.7
-15.5
-15.4
-14.3
-11.3
-11.6
-8.9
-18.2
-18.0
-17.8
-17.7
-17.5
-18.3
-19.4
-18.9
-18.8
-18.6
-18.5
-17.3
-11.9
-14.6
-12.0
-12.1
-13.5
-13.7
-14.0
-11.6
-16.1
-16.8
-17.0
-17.2
-15.9
-14.3
-14.1
-14.0
-13.8
-13.6
-14.4
-15.6
-15.0
-14.9
-14.7
-14.6
-13.4
-7.8
-16.7
-16.6
-16.4
-16.3
-16.1
-16.9
-21.7
-17.5
-17.3
-17.2
-17.0
-15.9
-12.8
-13.0
-13.3
-13.5
-14.2
-14.5
-14.7
-12.5
-14.6
-15.4
-15.6
-15.7
-14.4
-14.8
-14.6
-14.5
-14.3
-14.1
-15.0
-20.7
-15.5
-15.4
-15.3
-15.1
-14.0
-10.8
-11.1
-11.3
-11.6
-12.2
-12.5
-12.8
-10.6
-12.7
-13.4
-13.6
-13.8
-12.4
-9.2
-9.1
-8.9
-8.8
-8.6
-9.4
-17.8
-10.0
-9.8
-9.7
-9.5
-8.4
-5.5
-5.7
-5.5
-5.7
-7.0
-7.3
-7.5
-5.2
-7.2
-7.9
-8.1
-8.3
-7.0
-8.8
-8.7
-8.5
-8.3
-8.1
-9.0
-17.9
-9.7
-9.5
-9.4
-9.2
-7.9
-3.0
-4.6
-3.9
-3.9
-5.8
-6.0
-6.3
-2.8
-6.4
-7.3
-7.5
-7.7
-6.1
-12.8
-12.6
-12.3
-12.1
-11.9
-13.0
-20.9
-13.8
-13.6
-13.4
-13.2
-11.7
-6.3
-18.8
-18.5
-18.3
-18.0
-17.7
-19.0
-25.6
-20.0
-19.8
-19.5
-19.3
-17.4
-10.5
-11.9
-12.5
-12.6
-12.0
-12.3
-12.7
-10.2
-15.3
-16.6
-16.9
-17.1
-15.0
-26.4
-26.1
-25.8
-25.5
-25.1
-26.7
-31.0
-28.0
-27.7
-27.4
-27.1
-24.7
-16.6
-18.1
-18.0
-17.3
-17.8
-18.2
-18.6
-16.2
-22.1
-23.6
-24.0
-24.4
-21.6
-35.4
-35.0
-34.5
-34.1
-33.6
-35.8
-36.7
-37.5
-37.1
-36.7
-36.2
-33.2
-23.2
-24.8
-25.0
-24.4
-24.0
-24.5
-25.0
-22.7
-28.4
-30.7
-31.2
-31.7
-27.8
-48.0 -62.6 -83.1
-46.2 -61.9 -82.2
-45.7 -61.2 -78.9
-45.1 -58.0 -77.7
-49.1 -63.3 -84.7
-44.9 -53.9 -65.3 -77.9
-51.5 -68.8 -91.1
-50.9 -68.0 -90.1
-50.3 -67.2 -88.9
-49.7 -66.4 -87.9
-44.5 -57.3 -76.5 -99.3
-33.0 -44.4 -58.9 -75.6
-34.7 -46.4 -61.2 -78.2
-35.1 -47.1 -62.4 -79.9
-34.7 -46.9 -62.5 -80.3
-33.1 -43.5 -56.8 -71.8
-33.7 -44.4 -58.0 -73.4
-34.4 -45.3 -59.2 -75.0
-32.3 -43.5 -57.7 -73.9
-39.6 -53.0 -70.2 -90.1
-41.4 -55.8 -74.2 -95.7
-43.3 -56.5 -75.2 -97.0
-43.9 -57.1 -75.9 -97.7
-38.8 -51.9 -68.8 -88.2
-8.0 -1.2
-0.2
-0.2
-2.5
-2.8
-3.0

0.6 -0.7

0.2 -7.9

8.8 -12.7 -29.7 -23.7

8.7 -12.9 -29.8 -23.8
-8.7
-8.9
-7.7
-7.9
-7.6
-7.7
-9.5
-9.7
-9.8
-8.3 -7.3
-9.0 -8.5 0.2 -7.4

6.7 -11.7 -28.7 -27.4 -12.4 -11.5

6.5 -11.9 -28.8 -27.6 -12.6 -11.7

6.2 -12.0 -29.0 -27.8 -12.8 -11.8
-10.4
-10.7
-10.9
-11.1
-13.0
-13.8
-13.9
-14.1
-12.8
-9.2 -2.0
-2.2
-2.5

1.1 -8.9
-9.5 -9.2
-9.8 -9.5

9.4 -12.2 -29.2 -27.9 -13.0 -12.0 -10.0

6.2 -18.4 -35.4 -29.4 -14.4 -13.5 -11.5

5.5 -19.0 -36.0 -30.0 -15.0 -14.0 -12.0

5.3 -19.2 -36.1 -30.1 -15.1 -14.2 -12.2

5.1 -19.3 -36.3 -30.3 -15.3 -14.3 -12.3

6.5 -18.3 -35.2 -29.2 -14.3 -13.3 -11.3
-7.5 -6.0
-9.7 -3.3
-4.1
-4.2
-4.4
-3.1
-2.7
-3.5
-3.7
-3.8
-2.5
-2.3
-3.1
-3.3
-3.5
-2.1
-9.9
-10.4
-10.6
-13.3
-9.4
-10.9
-11.2
-11.4
-9.6
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 4 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A)

0.1 dB(A) dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d

8.6 -13.2 -30.2 -24.2

8.7 -13.0 -30.0 -24.0

8.4 -13.3 -30.3 -24.3
-9.2
-9.0
-9.3
-8.2
-8.1
-8.4
-7.8
-6.2
-6.1
-6.4
-13.3
-13.2
-13.5
-9.4
-9.2
-9.6
-1.5
-12.5
-12.3
-12.7
-9.0
-8.8
-9.2
-14.0
-13.7
-14.2

5.9 -12.0
-11.8
-12.2
-6.1
-5.9
-6.3
-6.1
-5.9
-6.3

13.3 -2.2
-2.0
-2.4
-2.0
-1.9
-2.2
-2.2
-2.1
-2.3

17.0 -1.3
-1.3
-1.5
-2.9
-2.8
-3.0
-0.3
-0.2
-0.4

17.8 -3.9
-3.9
-4.0
-7.4
-7.4
-7.5

14.5 -12.7
-12.7
-12.8
-18.4
-18.2
-19.4
-25.7
-25.4
-25.9

1.3 -36.3 -49.0 -65.3 -84.0
-35.9 -48.4 -64.3 -82.6
-36.8 -49.7 -66.2 -85.3

0.1 0.0

22.2 Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

49.5 35.5

13.8 -5.0

44.9 21.4

1.0 36.2

12.7 1.6

41.5 19.4

5.0 42.1

20.7 5.9

5.8 14.7

14.3 5.9

2.2 2.4

2.6 2.9

2.2 2.0
-25.1
-0.1

0.1 1.6

1.8 2.4

7.0 7.0

6.0 5.7

6.6 7.6

7.9 7.5

3.8 3.1

2.9 2.7

41.7 20.6

5.3 5.0

15.6 14.1

4.9 4.2

4.4 4.7

4.9 4.4

4.0 -22.2

1.9 2.1

3.6 3.8

4.6 9.3

9.2 8.1

7.9 9.5

9.8 10.1

9.7 6.0

5.3 5.0

4.8 36.7

14.6 -0.2
-1.1

13.0 10.1
-0.7
-2.4
-2.2
-1.9
-1.6
-1.5
-2.7
-29.3
-5.0
-4.8
-3.2
-3.0
-1.3

4.1 25.7
-1.2

5.1 27.2 -37.4

17.6 -32.4 -26.5 -22.7

17.0 -34.8 -28.8 -24.8

26.7 -27.6 -21.6 -15.1

26.0 -26.8 -18.3 -14.3

17.7 -32.6 -26.6 -22.7
-9.8
-9.4
-2.1
-1.4
-9.7
-8.8 -0.8
-2.5
-0.2
-1.8

1.7 0.1

3.4 1.8

4.2 2.5

8.7 8.2

16.9 17.0

8.9 1.3

1.5 1.8

2.0 2.2

1.1 -23.0

0.0 0.2

0.6 0.8

2.4 7.2

7.2 6.7

6.4 6.7

7.4 8.1

7.7 4.6

3.2 2.9

2.7 10.3

9.7 18.8

18.7 10.4

2.3 2.5

2.8 3.0

2.3 2.1
-24.9

0.0 0.2

1.7 1.9

2.5 6.4

6.0 5.6

5.3 6.7

7.7 7.3

6.8 3.9

3.2 3.0

2.8 7.4

7.3 16.6

15.9 7.3

3.1 3.3

3.5 3.7

3.1 2.9
-24.2

0.8 1.0

2.5 2.7

3.4 8.0

7.9 6.9

6.6 7.5

8.5 8.9

8.4 4.7

4.1 3.8

3.6 8.1

8.0 17.8

16.7 7.9

1.6 1.8

2.0 2.2

1.7 1.4
-24.8
-0.7
-0.5

1.0 1.2

1.9 6.5

6.4 5.4

5.1 6.7

7.0 7.3

6.9 3.3

2.6 2.3

2.1 5.2

4.9 0.8

0.2 12.7

10.4 0.3

0.8 1.1

1.4 1.6

1.4 0.6
-25.8
-1.6
-1.4

0.1 0.3

1.6 6.7

6.5 5.3

5.1 6.9

7.2 7.4

7.0 3.2

2.3 2.0

1.8 -5.0
-6.5

9.9 -9.1
-11.3

8.1 -19.8
-23.1

0.4 -32.8 -45.7 -64.0 -87.6
-37.7 -52.6 -73.3 -99.9
-8.5 -15.8 -26.9 -41.8
-13.7 -21.4 -32.6 -47.5
-32.1 -44.2 -61.3 -83.5
-29.6 -41.1 -55.9 -72.7
-28.9 -40.2 -54.6 -71.1
-28.2 -39.3 -53.3 -69.4
-27.7 -38.5 -52.3 -67.9
-27.0 -37.6 -51.0 -66.2
-30.0 -41.8 -56.8 -74.0
-59.2 -72.0 -88.3
-4.4 -10.5 -0.6

7.1 0.0 3.3

2.8 3.6
-3.2
-2.5
-8.3

5.2 6.1 7.7 7.8 9.7 10.7

12.1 4.6

12.9 13.2

5.3 16.3

14.4 4.8

5.6 7.5 6.4 8.2 8.2 10.0

3.8 6.4 3.9 -4.3
-2.3 -0.4 1.5 0.3 2.2 2.1 -5.4
-7.2
-6.5
-6.2
-6.1
-5.8
-7.8
-34.6
-10.2
-10.0
-8.4
-8.1
-5.4

0.2 -9.3 -19.6
-19.7
-19.2
-18.6
-18.4
-17.8
-20.0
-48.5
-22.8
-22.4
-20.9
-20.5
-17.3
-8.5

12.5 -17.3 -34.2 -28.3 -13.3 -12.3 -10.3

12.7 -17.1 -34.1 -28.1 -13.1 -12.1 -10.1

12.9 -16.9 -33.9 -27.9 -12.9 -12.0 -10.0
-15.4
-15.2
-15.0
-14.8
-14.5
-15.6
-25.8
-16.4
-16.3
-16.1
-15.9
-14.3
-4.0
-11.5
-11.3
-11.0
-10.8
-10.6
-11.7
-22.9
-12.5
-12.3
-12.1
-11.9
-10.3

0.0 -14.6
-14.3
-14.1
-13.9
-11.1
-14.8
-27.0
-15.6
-15.4
-15.2
-15.0
-9.6
-7.9
-7.6
-7.4
-5.8
-5.5
-8.1
-22.9
-9.0
-8.8
-8.6
-8.4
-5.2

2.3 -11.6
-11.3
-11.1
-10.8
-10.5
-13.1
-28.9
-14.0
-13.8
-13.6
-13.4
-10.2
-2.6
-9.6
-9.4
-9.1
-7.6
-7.3
-9.9
-28.0
-12.1
-11.9
-10.3
-10.1
-7.0
-0.7
-1.1
-1.7
-2.2
-1.2
-0.5

0.2 -2.6
-2.4
-2.2
-1.9
-1.8
-4.3
-25.0
-5.1
-4.9
-4.7
-4.5
-1.5

3.3 -2.7
-2.4
-2.2
-1.9
-1.8
-2.9
-26.0
-5.1
-4.9
-3.3
-3.1
-1.5

3.3 4.7 -13.0
-12.6
-12.2
-12.1
-11.6
-13.1
-41.1
-15.6
-15.3
-13.9
-13.6
-11.1
-4.3

5.0 5.2

13.2 -16.8 -33.7 -27.8 -12.8 -11.8

12.8 -16.6 -33.6 -27.6 -12.6 -11.6
-9.8
-9.6

5.4 5.0

12.2 -17.4 -34.4 -28.4 -13.4 -12.5 -10.5
-10.4 -23.0 -41.1 -36.3 -22.5 -20.1 -19.3

10.2 -18.1 -35.0 -29.0 -14.0 -13.1 -11.1

10.4 -17.9 -34.9 -28.9 -13.9 -12.9 -10.9

11.8 -17.8 -34.7 -28.7 -13.7 -12.8 -10.8

12.0 -17.6 -34.6 -28.6 -13.6 -12.6 -10.6

4.5 -21.8

2.4 -33.4 -46.0 -61.9 -80.6
-32.9 -45.3 -61.1 -79.1
-31.3 -43.5 -59.1 -76.9
-30.7 -42.7 -58.1 -75.6
-26.2 -36.6 -49.6 -64.4
-14.5 -21.0 -29.2 -37.9
-14.9 -21.8 -30.2 -39.1
-17.1 -24.0 -32.8 -42.3
-17.4 -24.7 -33.8 -43.5
-13.5 -19.3 -26.3 -33.5
-13.6 -19.6 -26.9 -34.6
-13.7 -20.0 -27.6 -35.5
-14.3 -20.6 -28.1 -36.3
-21.1 -29.6 -40.1 -52.1
-24.3 -33.8 -45.9 -59.5
-25.0 -34.9 -47.3 -61.3
-25.8 -35.8 -48.5 -62.9

2.5 4.1

4.3 13.1 -16.4 -33.4 -27.4 -12.4 -11.4 -9.4
-2.1
-2.2
-2.7
-3.0
-0.1

0.6 5.2

18.0 -11.5 -28.5 -22.5 -7.5
-5.1
-5.6
-5.9
-5.5
-6.1
-6.6
-7.1
-7.7
-6.6
-4.2
-4.6
-5.0
-4.6
-5.1
-5.6
-6.1
-6.7
-3.1 10.1

10.0 8.8

17.9 17.0

16.8 18.0

18.6 18.9
-9.1 -26.1 -20.1
-9.5 -26.5 -20.5
-9.9 -26.9 -20.9
-4.8 -21.7 -15.7
-5.3 -22.3 -16.3
-5.8 -22.8 -16.8
-3.4 0.6 -2.5 1.9 -3.0 3.3 3.3 3.9 0.0 -4.4 -8.4
-3.8 0.1 -3.0 1.3 -3.7 2.9 2.8 2.6 -1.5
-1.7

0.5 -6.2 -10.6
-10.8
-7.7
-5.1 -0.2
-0.4

0.3 -3.3 0.8 -4.1 2.5 2.5 8.6 2.4 -6.4
-4.4 -3.5 1.8 -3.1 2.8 2.8 10.3

10.6 10.9

10.5 6.8

4.3 -3.8
-3.7 -2.8 2.5 -2.4 3.5 3.5 4.6 0.7 -3.6 -7.7

0.1 -3.0 1.0 -2.1 3.2 -1.7 4.2 4.2 4.8 0.9 -3.5 -7.7

18.4 -11.1 -28.0 -22.1

14.9 -10.0 -28.7 -22.7
-0.4
-4.7
-8.9
-9.1
-9.3
-3.5 0.5 -2.6 2.8 -2.2 -0.2
-4.6
-6.1
-6.4
-6.7

3.7 3.7 4.4 0.5 -4.0 -8.2
-9.3 -3.0
-7.5
-9.9
-10.1
-5.2 -1.6
-3.1
-4.7
-4.9
-6.6 0.6 0.6 0.5 -3.7
-5.2
-5.4
-5.6
-8.4 -13.5
-15.8
-16.4
-17.0

13.8 -15.9 -32.8 -26.9 -11.9 -10.9

13.5 -16.1 -33.0 -27.0 -12.0 -11.1

13.3 -16.2 -33.2 -27.2 -12.2 -11.3
-13.5
-13.8
-14.0
-8.8 -8.1 -0.7
-1.0
-1.3
-0.7
-1.0
-1.3

5.9 -0.7
-0.9
-1.1
-10.5
-10.7
-11.0
-9.1 -8.4 5.7
-9.3 -8.7 5.5
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 5 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A)

4.1 dB(A)

5.1 dB(A)

3.6 dB(A) dB(A)

7.0 dB(A)

3.5 dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

15.2 16.2

16.5 15.5

31.1 -9.6 -28.3 -22.3
-8.9 -27.6 -21.6
-8.5 -27.3 -21.3
-9.2 -28.0 -22.0
-7.3
-6.6
-6.3
-7.0
-6.4
-5.7
-5.3
-6.0
-1.4
-4.4
-3.7
-3.3
-4.0
-8.9
-5.8
-5.5
-8.5
-1.7
-1.0
-0.6
-1.4

8.3 -4.8
-4.1
-3.7
-4.4
-1.1
-0.2

0.3 -6.1
-5.2
-4.7
-5.6

13.6 -4.1
-3.2
-2.7
-3.7

1.0 1.8

2.2 1.4

1.0 1.8

5.0 5.7

6.1 5.4

4.2 4.8

5.0 4.5

6.3 0.8

2.0 -3.4
-1.9
-1.9
-3.3
-8.2
-6.7
-6.4
-8.1
-12.8
-11.4
-11.1
-12.8

16.5 -20.4 -28.6 -38.9 -50.1
-18.4 -25.8 -35.6 -46.3
-18.0 -25.4 -34.6 -44.7
-19.7 -27.7 -37.8 -48.8

5.2 5.5

6.1 6.3

5.3 4.6

4.9 3.8

7.4 7.6

8.2 8.3

7.2 4.7

4.8 3.7

2.1 2.2
-0.7 1.4 4.4 6.6 0.9

21.0 25.2 26.4 24.9
Receiver R5 Fl G Lr,lim dB(A) Leq,d 48.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

48.3 34.5 43.9

21.7 -3.5

35.4 12.3

0.0 39.7

17.8 3.8

40.4 19.7

5.2 40.6

20.2 5.5

35.9 14.1

0.6 25.0
-3.0

3.4 26.8 14.3 -43.8

16.8 -35.4 -29.3 -25.4 -12.4

16.3 -36.3 -30.3 -26.3 -10.8
-7.4 -13.4
-5.8 -11.9
-5.4
-3.8
-4.6
-3.0
-2.6
-1.0

4.5 1.9

0.9 2.8

1.9 7.7

6.7 9.4

8.5 7.0

6.0 8.0

8.0 5.7

5.7 1.5

1.3 -4.3
-5.1
-8.6
-10.2

4.8 -20.1
-22.6
-2.5
-34.4 -49.4 -70.7 -98.1
-1.9 -1.0 2.8 4.3 5.5 0.3 -38.0 -54.4 -77.5

22.7 -31.0 -24.9 -20.9

26.0 -21.8 -15.9 -12.1

22.3 -30.0 -24.0 -20.1
-7.9

0.8 -0.5

5.6 0.3
-6.4
-0.6
-5.7

1.7 3.7 2.6 4.6 6.5 7.5 8.6 12.6

16.9 13.5
-3.8
-3.7
-3.5
-3.3
-3.1
-4.0
-17.2
-4.7
-4.5
-4.4
-4.2
-2.9

3.3 14.5

18.7 15.2
-4.9
-4.8
-4.6
-4.4
-4.2
-5.1
-19.6
-5.7
-5.6
-5.4
-5.3
-4.0

1.8 10.5

14.2 10.8
-5.0
-4.9
-4.7
-4.5
-4.3
-5.2
-19.4
-5.6
-5.5
-5.5
-5.4
-4.1

1.7 12.5

15.8 12.4
-4.2
-4.0
-3.8
-3.6
-3.4
-4.3
-18.6
-4.8
-4.7
-4.6
-4.5
-3.2

2.6 13.7

16.5 13.2
-5.7
-5.5
-5.3
-5.1
-4.9
-5.8
-19.2
-6.4
-6.3
-6.1
-6.0
-4.7

1.2 11.6

13.9 10.5
-3.1
-2.9
-2.7
-2.5
-2.3
-3.2
-16.5
-3.9
-3.7
-3.6
-3.4
-2.1

3.9 12.4

14.2 10.7
-2.7
-2.5
-2.3
-2.1
-1.8
-2.9
-16.1
-3.5
-3.4
-3.2
-3.1
-1.6

4.6 9.0 9.4 6.4 -12.9 -22.5 -36.7 -55.4
-13.9 -21.3 -31.6 -44.2
-22.0 -32.2 -46.6 -65.1
-41.6 -55.3 -72.7 -93.2
-41.0 -54.4 -71.5 -91.5
-40.3 -53.5 -70.3 -89.8
-39.6 -52.6 -69.2 -88.1
-38.9 -51.7 -67.9 -86.4
-42.2 -56.1 -73.8 -94.8
-49.8 -60.5 -74.0 -89.2
-44.9 -59.7 -78.7

7.5 9.3 8.0 9.4 9.1 10.7

6.6 11.3

7.4 13.1

8.2 10.3

6.5 10.2

5.9 6.6 4.1 -4.4
-4.6 2.3 4.1 3.0 4.9 4.8 1.7 -1.4 -10.9
-30.3
-29.8
-29.2
-28.8
-28.2
-30.7
-40.5
-32.7
-32.2
-31.7
-31.2
-27.7
-17.3
-17.9
-18.5
-20.0
-17.4
-18.0
-17.4
-16.8
-22.9
-26.2
-26.8

5.8 -18.9 -35.9 -29.9 -14.9 -13.9 -11.9

6.0 -18.8 -35.7 -29.8 -14.8 -13.8 -11.8

6.2 -18.6 -35.6 -29.6 -14.6 -13.7 -11.7

6.4 -18.5 -35.5 -29.5 -14.5 -13.5 -11.5

6.6 -18.3 -35.3 -29.3 -14.3 -13.4 -11.4

5.6 -19.1 -36.0 -30.0 -15.0 -14.1 -12.1
-6.0 -20.7 -38.7 -31.3 -17.6 -17.9 -17.1

5.0 -19.6 -36.5 -30.6 -15.6 -14.6 -12.6

5.1 -19.5 -36.4 -30.4 -15.4 -14.5 -12.5

5.3 -19.3 -36.3 -30.3 -15.3 -14.3 -12.3

5.4 -19.2 -36.2 -30.2 -15.2 -14.2 -12.2

6.8 -18.2 -35.2 -29.2 -14.2 -13.2 -11.2
-17.6
-17.4
-17.2
-17.0
-16.8
-17.7
-23.3
-18.4
-18.2
-18.1
-17.9
-16.6
-13.1
-13.4
-13.7
-13.9
-11.8
-12.2
-12.5
-12.8
-15.2
-16.0
-16.2
-13.6
-13.4
-13.3
-13.1
-12.9
-13.8
-20.5
-14.5
-14.3
-14.1
-14.0
-12.7
-9.2
-16.7
-16.5
-16.3
-16.1
-15.9
-16.9
-24.6
-17.5
-17.4
-17.2
-17.0
-15.7
-9.7
-12.8
-10.1
-9.9
-9.7
-9.5
-13.0
-18.0
-13.7
-13.5
-13.3
-13.2
-9.2
-5.2
-5.5
-5.9
-6.2
-6.0
-6.5
-6.9
-4.8
-7.6
-8.6
-8.8
-15.2
-15.0
-14.8
-14.6
-14.4
-15.4
-24.0
-16.1
-16.0
-15.8
-15.6
-14.2
-10.2
-10.5
-10.9
-11.2
-11.0
-11.4
-9.8
-13.3
-13.1
-12.9
-12.7
-12.5
-13.5
-23.1
-14.2
-14.0
-13.8
-13.7
-12.3
-6.9
-7.8
-7.6
-7.4
-7.2
-7.0
-7.9
-20.1
-8.6
-8.4
-8.3
-8.1
-6.8
-1.9
-2.1
-2.5
-2.7
-1.9
-2.2
-3.0
-1.6
-5.3
-6.2
-6.4
-7.8
-7.6
-7.4
-7.2
-7.0
-7.9
-21.1
-8.6
-8.5
-8.3
-8.1
-6.8
-1.9
-2.1
-2.5
-2.7
-1.9
-2.2
-1.3
-0.3
-5.3
-6.2
-6.4
-6.7
-6.5
-6.2
-6.0
-5.8
-6.9
-19.9
-7.7
-7.5
-7.3
-7.1
-5.5

0.9 -10.2
-10.0
-9.7
-9.5
-9.2
-10.5
-23.2
-11.4
-11.2
-11.0
-10.7
-8.9
-2.0
-2.3
-2.7
-4.1
-3.0
-3.4
-2.5
-1.7
-5.7
-8.2
-8.4
-15.7
-15.4
-15.1
-14.8
-14.4
-16.0
-28.1
-17.1
-16.9
-16.5
-16.3
-14.1
-6.5
-22.5
-22.1
-21.7
-21.4
-21.0
-22.9
-34.1
-24.4
-24.0
-23.6
-23.3
-20.6
-11.8
-12.3
-12.7
-14.2
-12.3
-12.8
-12.1
-11.4
-16.5
-19.4
-19.8
-44.3 -58.9 -77.5 -99.8
-43.6 -57.9 -76.2 -98.1
-43.0 -57.1 -75.1 -96.6
-38.3 -50.8 -66.7 -84.8
-25.4 -34.5 -46.0 -58.7
-26.1 -35.4 -47.1 -60.2
-26.9 -36.4 -48.5 -61.9
-28.5 -38.2 -50.4 -63.9
-24.9 -33.0 -43.3 -54.6
-25.6 -34.0 -44.5 -56.1
-25.2 -33.8 -44.7 -56.7
-24.7 -33.6 -44.7 -57.1
-32.3 -43.1 -56.9 -72.4
-36.3 -48.1 -63.2 -80.3
-37.0 -49.0 -64.4 -81.9

12.6 -15.5 -32.5 -26.5 -11.5 -10.6

12.3 -15.8 -32.7 -26.7 -11.7 -10.8

12.0 -16.0 -32.9 -27.0 -12.0 -11.0

10.8 -16.1 -33.1 -27.1 -12.1 -11.2
-8.6
-8.8
-9.0
-9.2
-7.3
-7.6
-8.0
-8.3
-9.5 -10.0
-10.3
-10.5
-10.9
-11.3
-11.6
-9.4
-8.5 3.0 1.5 1.4 2.3 0.9 3.7 4.3 0.6 -6.9
-9.8 -8.9 2.7 1.2 1.2 2.1 0.6 3.4 4.0 0.3 -7.3
-10.0
-7.9
-9.2 1.2 -0.2

0.6 -0.3

0.5 0.6 -0.8
-0.1
-0.4

0.6 2.0 2.6 -1.1
-0.2
-0.5

0.4 -8.7

11.6 -14.3 -31.3 -25.3 -10.3

11.3 -14.6 -31.6 -25.6 -10.6
-9.3
-9.6
-9.0 2.0 1.4 2.7 3.4 -7.3
-8.2 -9.5 1.7 0.3 0.2 1.1 2.4 3.1 -7.7

12.1 -14.9 -31.9 -25.9 -10.9 -10.0

13.0 -15.2 -32.2 -26.2 -11.2 -10.3
-8.5 -7.9 2.7 1.2 1.1 2.0 3.3 4.0 -6.9
-8.9 -9.8 -6.6 3.6 2.1 2.0 2.9 1.5 4.2 4.9 1.3 -6.1

9.4 -17.1 -34.0 -28.0 -13.0 -12.1 -10.1

7.4 -17.7 -34.7 -28.7 -13.7 -12.8 -10.8

7.2 -17.9 -34.9 -28.9 -13.9 -12.9 -10.9
-11.2
-12.1
-12.3
-14.3
-15.2
-15.4
-12.6
-13.6
-13.8
-10.7
-11.6
-11.8
-0.1
-2.3
-2.5
-1.4
-3.5
-3.7
-1.5
-3.6
-3.8
-0.6
-2.7
-2.9
-2.0
-4.2
-4.4

0.7 1.2 -2.6
-4.9
-5.1
-10.6
-13.2
-13.5
-1.5
-1.7
-1.0
-1.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 6 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

7.0 -18.0 -35.0 -29.0 -14.0 -13.1 -11.1 -16.4
-14.9
-14.4
-14.2
-14.7
-12.5
-11.0
-10.5
-10.2
-10.7

0.3 -15.6
-11.5
-11.0
-10.8
-11.2
-9.0
-7.3
-6.8
-6.5
-7.1
-14.0
-12.3
-11.8
-11.5
-12.0

7.8 -12.1
-10.4
-9.8
-6.6
-5.0
-4.5
-4.3
-4.8
-6.6
-5.0
-3.2
-3.0
-4.8

15.2 -2.7

0.2 0.7

1.0 0.5
-3.8
-1.1
-0.7
-0.5
-0.9
-3.9
-1.2
-0.8
-0.5
-1.0

18.8 -3.1
-0.3

0.1 -4.5
-1.7
-1.3
-1.0
-1.5
-1.9

1.0 -1.4

1.5 2.1

2.3 1.8
-5.3
-2.2
-1.7
-1.4
-1.9
-8.7
-5.3
-4.7
-4.4
-5.0

17.4 -13.8
-10.1
-9.4
-20.2
-15.9
-15.1
-14.6
-15.5
-27.2
-22.2
-21.0
-20.5
-21.6

5.8 -37.6 -49.9 -65.5 -83.3
-31.3 -41.9 -55.2 -70.2
-29.9 -40.0 -52.7 -66.8
-29.2 -39.0 -51.5 -65.3
-30.6 -40.9 -53.9 -68.4

9.7 -16.9 -33.8 -27.8 -12.9 -11.9

10.2 -16.5 -33.5 -27.5 -12.5 -11.5

10.5 -16.3 -33.3 -27.3 -12.3 -11.4

9.9 -16.7 -33.7 -27.7 -12.7 -11.7
-9.9
-9.5
-9.4
-9.7

1.5 -9.5 0.4 1.7 -9.0
-10.1 -0.1 1.2 -9.8

24.3 -6.5 19.9
Receiver R6 Fl G Lr,lim dB(A) Leq,d 45.0 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

41.4 27.2

14.0 1.9

35.6 19.8

5.4 26.6

9.0 32.3

12.7 8.3

34.4 16.8

8.3 35.5

16.5 7.6

30.5 9.6

17.5 -7.7
-13.6
-23.4
-4.8
-8.5
-23.2
-10.6
-10.0
-9.5
-9.0
-8.0
-11.0
-57.6
-14.1
-13.1
-12.5
-12.1
-7.5

0.9 -11.2

24.0 -39.0

20.6 -27.8 -22.0 -15.8

15.4 -29.6 -23.7 -19.9

26.0 -20.2 -14.4 -10.6

21.8 -32.1 -26.0 -22.0
-3.0
-7.1

2.2 -4.3
-8.7

0.7 3.6
-0.9

9.0 4.1
-0.9

9.2 5.8

0.6 5.5 7.1

1.5 7.7

1.8 11.7

5.2 13.0

6.3 10.1

5.8 10.6

6.5 7.6

3.3 3.1
-1.4

9.3 2.4 -1.9
-8.4

5.3 -4.8
-13.1

3.0 -23.6 -32.2 -44.7 -60.5
-34.7 -45.0 -59.9 -79.6
-12.9 -18.5 -26.9 -37.9
-19.7 -30.4 -46.0 -66.3
-38.5 -54.7 -77.4
-2.4

7.0 0.6 0.1 2.1 4.4 3.5 -2.9

10.6 9.0

2.4 10.1

3.3 9.7 11.9

5.3 13.0

6.3 13.5

7.3 16.9

11.2 6.8

18.7 14.3

8.6 14.1

10.2 4.3

15.4 12.1

6.1 16.0

13.2 7.0

13.2 10.9

4.4 13.4

11.4 4.5
-6.5 -1.6 -7.6 0.5 1.3 3.4 7.6 7.5 3.6 0.8

16.0 -36.1 -30.0 -26.0 -13.1 -8.1 -11.6 -3.6
-4.4
-4.0
-3.5
-3.0
-2.4
-4.8
-28.6
-7.6
-7.3
-5.7
-5.3
-1.9

8.0 -1.7
-0.5

0.0 -2.7
-3.6
-3.1
-2.6
-2.1
-1.6
-4.0
-29.8
-5.5
-5.2
-4.8
-4.4
-1.0

8.7 -0.8

1.9 -0.8
-3.1
-2.7
-2.2
-1.7
-1.2
-3.5
-31.8
-5.5
-5.0
-4.5
-4.0
-0.7

8.8 1.1 2.1 3.0 0.0 -1.1

3.4 -6.3
-0.8
-0.4

0.0 -11.1
-5.8
-5.3
-4.9
-4.4
-3.6
-6.1
-48.1
-8.7
-7.9
-7.4
-7.1
-3.1

4.4 17.2 -12.0 -29.0 -23.0

17.6 -11.5 -28.5 -22.5

18.1 -11.1 -28.0 -22.0

18.6 -10.6 -27.5 -21.6

19.4 -10.0 -27.0 -21.0

17.0 -12.4 -29.4 -23.4
-8.0
-7.5
-7.0
-6.6
-6.0
-8.4
-7.0
-6.6
-6.1
-3.1
-2.6
-7.4
-2.5
-0.8
-0.3

1.4 -1.2
-0.7
-0.3

0.2 2.8 2.8 6.7 5.3 5.7 7.3 5.7 8.4 9.0 6.1 -17.5 -24.9 -33.9 -43.6 -16.8 -24.0 -32.7 -42.0
-16.1 -23.1 -31.6 -40.5
-15.5 -22.3 -30.5 -39.1
-14.4 -21.0 -28.9 -37.1
-18.1 -25.6 -34.9 -44.9
-71.5 -88.8

2.3 3.2 3.2 7.1 5.7 6.2 7.7 6.1 8.8 9.4 6.7 3.8

0.5 2.8 3.7 3.7 7.6 6.2 7.3 8.2 6.5 9.2 9.8 7.1 4.2

1.0 3.2 4.2 4.1 8.0 6.6 7.7 8.6 6.9 9.6 10.2

11.7 8.8

7.4 4.6 0.4

1.9 1.5 3.8 0.7 4.7 4.6 8.5 7.7 8.2 9.1 7.8 10.5

8.2 8.2 5.4 1.2
-2.9 -0.9
-25.7
-2.5
-2.1
-1.7
-1.4

2.1 1.5 -1.2
-30.9
-3.5
-2.5
-1.7
-1.2

1.3 2.8 2.8 6.7 5.2 5.7 7.2 5.5 5.9 3.2 -1.1
-40.1
-3.4
-2.6
-2.2
-2.0

1.6 -13.2 -25.1 -43.3 -38.4 -24.6 -22.4 -21.5 -25.8
-0.5
-0.1

0.4 -27.9

2.2 -28.9

2.1 -26.0

6.0 -27.8

4.5 -28.0

4.4 -27.3

5.2 -27.9

3.5 -25.5

6.2 -25.4

6.7 -29.8

3.0 -33.8

15.4 -13.9 -30.9 -24.9 1.1

15.9 -13.6 -30.5 -24.6

16.3 -13.2 -30.2 -24.2

16.5 -12.8 -29.8 -23.8
-9.9
-9.6
-9.2
-8.8
-5.5
-8.9
-8.6
-8.2
-7.9
-0.8
-6.9
-6.6
-6.2
-3.4

2.4 -21.8 -30.3 -40.8 -52.3
-20.6 -28.9 -39.1 -50.3
-20.0 -28.0 -37.9 -48.7
-19.4 -27.2 -36.9 -47.3
-13.7 -20.1 -27.7 -35.6

2.5 2.4 6.3 4.8 4.7 6.0 4.3 7.0 7.5 3.8 1.8

2.8 2.8 6.6 5.2 5.0 6.3 4.7 7.3 7.9 4.5 2.2

0.9 2.8 2.8 6.7 5.2 5.0 6.4 4.8 7.4 8.0 5.1 2.4

19.9 28.4

28.7 28.6

28.3 25.8

26.6 27.3

28.0 24.6

21.6 -9.5 -26.4 -20.4 4.3 5.2 5.2 9.0 8.2 8.7 9.6 8.3 10.9

18.7 18.9

18.8 18.6

16.5 17.1

17.7 18.3

15.3 12.3

12.1 19.1

19.3 19.3

19.0 17.0

17.6 18.2

18.7 16.0

13.5 8.6 5.8

3.3 -11.9

4.8 -11.6

4.7 -11.7

3.0 -12.1
-2.6 -17.3

0.7 -16.3

1.7 -13.3

2.6 -12.5
-5.9
-5.6
-5.7
-6.1
-9.2
-8.3
-7.4
-6.6

9.1 10.0 12.0

9.4 10.3 12.3

9.3 10.2 12.2

11.9 12.2

12.1 11.6

8.6 13.8

14.1 14.0

13.6 10.8

11.6 12.4

13.2 9.4

11.4 11.7

11.6 10.4

7.7 15.3

15.6 15.5

15.1 12.0

13.3 14.1

14.8 10.2

6.9 15.1

15.4 15.3

14.9 12.4

13.2 13.9

14.6 11.1

6.8 19.1

19.4 19.3

19.0 16.2

16.9 17.7

18.6 14.9

11.3 17.8

18.0 17.9

17.6 15.2

15.9 16.7

17.3 13.6

10.6 17.4

17.7 17.6

17.3 14.9

15.6 16.3

17.0 13.7

10.4 18.1

18.3 18.2

17.9 15.6

16.3 17.0

17.6 14.4

11.6 16.1

16.4 16.3

16.0 13.6

14.2 15.2

15.7 12.4

9.7 15.4

15.6 15.5

15.3 13.3

13.9 14.5

15.0 12.3

9.9 12.6

12.8 12.7

12.5 10.5

11.1 11.7

12.2 9.5

8.6 -3.9
-3.6
-3.7
-4.0
-8.0 -12.6 -16.6
-7.7 -12.3 -16.2
-7.8 -12.4 -16.3
-8.2 -12.8 -16.9

8.3 9.1 9.1 8.8 4.6 1.2

8.2 8.9 9.0 8.8 4.6 1.1

8.8 5.8

6.7 7.6

8.4 4.3
-1.1

9.8 11.7 7.7 8.5 8.6 8.5 4.3 0.8

6.7 7.6

8.7 9.6

4.6 5.5 5.8 6.5 2.2 -1.5
-0.7
-0.1

0.5 -6.6 -11.3 -16.6 -21.4

5.6 9.5 6.4 6.6 8.5 7.1 2.9 -5.8 -10.3 -15.4 -20.0

8.5 10.5

9.4 11.3

6.5 10.4

11.2 7.0

7.3 7.5 9.3 7.7 3.5 -5.0
-4.4
-9.4 -14.3 -18.6

7.3 8.1 8.2 10.1 -8.6 -13.3 -17.5

6.3 8.2 4.0
-4.4 -18.9 -11.9
-7.6 -24.6 -18.6

5.2 2.2

7.2 4.2

3.1 3.9 4.5 5.5 1.1 -2.7
-5.8
-8.1 -13.0 -18.8 -24.2

0.0 3.9 0.8 6.1 1.1 3.0 7.0 2.9 -1.7 -11.7 -17.4 -24.3 -31.1 MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 7 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A)

9.8 dB(A) dB(A)

9.2 dB(A) dB(A) dB(A)

9.4 dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

20.9 20.4

25.5 27.0

27.6 26.3

39.7 -8.3 -25.3 -19.3
-8.9 -25.8 -19.9
-1.8
-4.9

5.3 7.2

8.0 6.3

1.6 -0.2

6.2 3.6

3.0 8.2
-0.7
-1.3

4.1 6.1

6.9 5.1

3.2 2.7

0.2 -0.4

5.0 6.9

7.7 5.9

5.4 4.9

0.4 -0.1

5.4 2.4

1.8 7.3

8.9 9.7

8.1 6.3

5.7 6.2

5.7 10.1

9.6 10.0

9.4 10.6

10.1 15.3

16.7 17.3

16.0 11.8

11.4 16.3

17.5 18.1

16.9 34.9

13.1 12.5

16.8 18.0

18.5 17.4

6.6 6.2

2.4 2.0

6.3 7.5

8.1 7.0
-2.2
-2.6

2.0 3.3

3.8 2.7
-6.4
-6.9
-1.7
-0.3

0.3 -12.4 -18.4 -25.5 -32.7
-13.1 -19.2 -26.6 -34.1
-6.9 -11.6 -17.1 -22.1

9.3 14.6

16.0 16.6

15.3 34.1

8.7 13.3

14.7 15.5

14.0 9.0

13.1 14.3

14.8 13.7
-3.2 -17.9

1.2 -13.8

2.1 -12.9

0.2 -16.8
-9.7
-7.8
-6.9
-8.7

8.1 10.3

12.1 12.9

11.2 11.1

13.7 14.4

12.4 12.0

13.6 14.3

12.8 29.3

15.8 17.3

18.0 16.6

14.5 16.3

17.0 15.6

10.3 11.5

12.0 11.0

33.1 8.1 10.1

9.0 11.0

10.0 10.8

9.0 7.1 -5.3
-4.6
-9.7 -14.7 -19.1

7.9 -8.9 -13.7 -17.9

7.2 9.8

9.2 6.3 -0.9

26.5 -6.0 -10.6 -15.8 -20.5

17.5 23.6
Receiver R7 Fl G Lr,lim dB(A) Leq,d 42.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

33.5 21.7

12.8 6.7

28.9 18.7

10.3 1.8

18.3 7.7

23.8 10.8

13.2 5.1

26.3 9.5

26.7 9.9

20.5 2.8

4.0 -11.9
-5.2
-39.3

21.2 -44.5

25.4 -20.6 -14.7 -10.8

16.8 -27.9 -22.0 -18.3

20.1 -28.4 -22.6 -18.8

2.0 -5.6
-3.6

0.5 -7.3
-4.9

8.7 0.3

8.8 0.2

9.9 1.6

9.4 12.2

2.3 12.7

3.5 16.5

8.4 17.9

9.6 13.2

4.7 14.6

5.9 15.1

6.6 12.3

3.5 12.4

3.2 8.3
-1.4

2.8 8.0 4.3
-6.5
-2.5
-5.3
-11.6

9.1 2.2
-9.4
-5.7
-10.1
-17.9

4.9 -13.1 -18.6 -26.9 -37.8
-28.5 -37.3 -50.2 -67.0
-25.3 -34.3 -47.1 -63.6
-37.3 -53.4 -76.1
-50.6 -71.2
-0.9

1.2 1.0 -2.3

2.0 -18.3
-14.9
-22.1
-32.2

1.5 3.2 4.9 3.6 5.1 4.8 6.4 7.0 7.5 11.0

6.4 12.3

7.9 8.4 9.8 10.3

8.3 7.4 7.3

16.6 -33.2 -27.3 -23.4 -10.6 -5.8 -12.0 -2.5
-8.4

7.8 -0.7
-4.1

11.7 11.3

10.6 9.8
-1.9
-5.2

8.6 -0.4
-3.4

13.8 13.4

12.8 12.0

11.2 13.8
-28.4

11.5 12.2

13.0 13.5

10.2 0.9
-0.6
-3.4

8.7 1.2 2.0 2.7 5.9 7.5 5.6 5.6 1.0 -0.1
-5.5

13.0 12.7

12.3 11.9

11.3 13.0
-38.0

11.5 12.0

12.5 12.8

10.7 2.6

13.1 -37.6 -31.7 -27.9 -15.0 -10.2 -16.3 -1.5

10.6 10.2

9.6 -0.6

15.2 14.9

14.3 13.6

12.3 15.3
-30.5

12.6 13.8

14.5 15.0

11.1 2.3

0.3 4.1 5.8 1.5 3.2 4.0 1.2 1.0 -3.8

15.7 15.5

15.1 14.6

14.0 15.7
-33.2

14.2 14.7

15.2 15.5

13.4 5.3

28.5 28.2

27.7 27.1

26.3 28.6

5.0 -12.0

4.6 -12.4
-0.2 -13.1
-1.1 -13.9
-2.2 -14.8

5.0 -11.9
-6.0
-6.4
-7.1
-7.9
-8.8
-6.0

9.0 8.5

7.9 7.1

6.2 9.0

9.9 11.9

9.5 11.5

8.8 10.8

8.0 10.0

15.1 14.7

14.2 13.5

12.8 15.1
-31.5

13.1 13.7

14.4 14.8

12.0 2.3

18.8 18.5

18.0 17.3

16.6 18.9
-28.6

16.9 17.5

18.2 18.6

15.8 6.2

17.9 17.6

17.0 16.1

15.3 17.9
-30.2

15.6 16.2

17.2 17.6

14.6 4.7

17.6 17.3

16.7 16.1

15.4 17.6
-30.5

15.7 16.3

16.9 17.3

14.7 5.1

18.2 18.0

17.5 16.9

16.2 18.3
-29.8

16.4 17.0

17.6 18.0

15.4 6.5

16.2 15.9

15.5 14.8

14.1 16.2
-30.5

14.4 15.0

15.5 16.0

13.5 5.0

18.9 18.6

18.2 17.7

17.1 18.9
-28.3

17.3 17.8

18.3 18.7

16.4 7.7

19.4 19.1

18.7 18.2

17.6 19.4
-28.4

17.8 18.3

18.9 19.2

17.0 8.3
-3.3
-3.6
-4.1
-4.7
-7.4 -12.1 -16.1
-7.8 -12.5 -16.6
-8.4 -13.2 -17.6
-9.1 -14.2 -18.7

7.4 8.2 8.4 8.8 4.7 1.2

6.7 7.5 7.7 8.4 4.2 0.8

5.9 6.7 7.0 8.9 7.9 3.7 0.2

7.1 9.1 5.0 8.9 5.8 6.2 8.1 7.4 3.1 -0.5 -5.5 -10.0 -15.3 -20.0

9.9 11.9 7.9 11.8
-28.6

9.3 8.7 8.8 10.6
-33.4

8.4 9.1 4.9 1.5 -3.3
-83.8
-5.2
-7.4 -12.0 -16.1
-16.4 -28.1 -46.2 -41.2 -27.3 -27.3 -26.3 -31.5

5.4 -32.7

6.2 -34.3

6.5 -45.2

7.6 -54.8

3.3 -66.6

26.6 -0.2

27.2 27.9

28.3 25.6
-1.8 -14.5
-0.9 -13.7

4.1 -12.9

4.7 -12.3
-3.2 -20.2
-8.5
-7.7
-6.9
-6.3
-9.7

6.5 7.3

7.4 9.4 -9.7 -14.8 -19.5
-8.9 -13.9 -18.4
-8.2 -13.0 -17.3
-7.7 -12.4 -16.5

8.2 10.2

9.0 11.0

9.6 11.6

6.2 10.1

10.9 11.4

8.0 7.0 7.2 9.1 8.1 3.9 0.4 -4.6

8.1 7.0 7.8 7.9 9.8 8.6 4.4 0.9 -3.9

8.7 7.5 8.3 8.5 10.3

7.2 8.9 4.7 1.3 -3.5

5.3 6.2
-7.8
-7.4
-6.9
-6.5
-9.3
-8.9
-8.6
-8.2
-0.1

8.2 -5.8
-5.4
-4.9
-2.5
-7.3
-6.9
-6.6
-6.2

3.1 4.1 4.9 5.4 6.7 2.5 -1.2 -6.3 -11.0 -16.5 -21.5
-19.1 -26.9 -36.5 -46.9
-18.3 -25.9 -35.2 -45.3
-17.4 -24.7 -33.7 -43.3
-16.6 -23.7 -32.5 -41.7
-22.5 -31.2 -42.1 -54.1
-21.8 -30.2 -40.8 -52.4
-21.0 -29.3 -39.5 -50.7
-19.8 -27.8 -37.8 -48.6
-12.1 -18.1 -25.3 -32.7

16.5 -12.8 -29.8 -23.8

16.7 -12.4 -29.4 -23.4

17.2 -11.9 -28.9 -22.9

17.7 -11.5 -28.5 -22.5
-8.8
-8.4
-7.9
-7.5
-6.5
-4.8
-4.3
-3.9
-11.8
-11.4
-11.1
-6.9
-1.1
-1.3
-0.9
-0.4

0.0 -4.4
-4.0
-3.5
-3.1
-5.9
-5.5
-5.2
-4.8
-0.3
-4.1
-3.6
-3.0
-2.6
-6.0
-5.5
-5.1
-4.6

0.0 -1.8
-1.6
-1.1
-0.7
-4.0
-3.6
-3.1
-2.6

2.0 -1.7
-1.3
-0.8
-0.3
-3.8
-3.4
-3.0
-2.1

2.6 -6.8
-6.3
-5.7
-5.2
-9.2
-8.7
-8.2
-7.3
-1.9
-11.8
-11.2
-10.5
-9.9

1.4 2.4 2.4 6.3 4.8 5.3 6.8 5.3 8.0 8.6 5.7 3.0

1.9 2.9 2.9 6.8 5.3 5.8 7.3 5.7 8.4 9.1 6.1 3.5

2.3 3.3 3.3 7.2 5.7 6.8 7.7 6.1 8.8 9.5 6.7 3.9

14.9 -14.2 -31.2 -25.2 -10.2 -2.8
-2.5
-2.1
-1.7

2.8 -1.0
-0.6
-0.1

0.4 1.3 1.5 5.3 3.7 3.5 4.8 3.3 5.9 6.4 2.7 0.7 -14.6
-14.0
-13.4
-12.4
-6.1

15.2 -13.9 -30.9 -24.9

15.4 -13.5 -30.5 -24.5

16.2 -13.2 -30.1 -24.2
-9.9
-9.5
-9.2
-4.7

1.9 1.8 5.6 4.1 3.9 5.2 3.6 6.2 6.8 3.0 1.1

2.0 1.9 5.7 4.2 4.0 5.4 3.8 6.5 7.0 3.8 1.4

2.3 2.2 6.1 4.5 4.4 6.3 4.8 7.4 8.0 5.0 2.3

20.7 -8.7 -25.7 -19.7 5.0 5.9 5.9 9.8 9.7 9.5 10.4 9.1 11.8 12.9 9.5 6.7 MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 8 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 001 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

23.4 24.2

24.9 20.2
-5.9 -22.8 -16.9
-5.0 -22.0 -14.2
-4.2 -21.1 -10.6
-9.4 -26.4 -20.4

2.8 3.6

3.8 4.6

5.8 6.6

7.4 2.5

1.4 -0.3

1.9 1.6

2.4 5.5

6.4 2.5

3.3 7.9

8.6 9.4

4.4 3.3

2.8 3.8

3.0 3.9

4.9 5.8

6.5 1.3

0.3 -0.2

0.8 8.8

9.7 8.7

10.0 11.3

5.3 13.6

14.4 15.1

9.2 12.3

13.2 13.8

9.1 12.1

12.9 14.0

8.9 13.3

14.1 14.7

9.8 11.4

12.2 12.8

8.5 14.4

15.1 15.7

11.2 10.2

9.3 15.2

15.8 16.4

12.4 11.4

10.0 11.9

11.5 12.2

12.8 9.0

8.8 9.5

4.8 5.5

6.1 2.1

1.0 0.2

1.6 0.4

1.1 -3.4
-2.6
-1.9
-6.7
-8.2
-9.2
-7.5

25.6 -9.0 -14.2 -20.4 -26.3
-8.0 -13.1 -19.0 -24.6
-7.2 -12.0 -17.7 -23.1
-12.9 -19.1 -26.6 -34.4
-14.6 -21.3 -29.4 -37.9
-15.8 -22.6 -31.0 -39.9
-13.8 -20.3 -28.1 -36.2

4.4 5.4 3.2 7.2 4.1 4.6 10.4

5.3 10.1

6.2 1.8
-5.4
-6.5
-7.0
-6.0
-2.4
-5.5
-6.0
-5.0

8.0 -1.8
-2.9
-3.4
-2.4

2.1 -0.9
-2.1
-2.5
-1.5
-0.6
-1.7
-2.1
-1.2

21.9 -2.5
-3.7
-4.6
-3.1

19.0 -10.5 -27.5 -21.5

18.2 -11.0 -28.0 -22.0

19.5 -10.0 -26.9 -21.0

38.3 1.0 4.2 4.2 8.1 7.3 7.8 8.7 7.1 8.0 5.2

0.5 3.8 3.7 7.7 6.2 7.3 8.2 6.6 7.2 4.4

1.5 4.7 4.7 8.6 7.8 8.4 9.2 7.5 10.7

33.4 8.5 5.7

15.7 27.7 32.3 32.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 9 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Receiver R1 Fl G Lr,lim dB(A) Leq,d 45.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
-1.8
-1.6
-1.2
-3.0
-3.3
-3.1
-6.5
-7.0
-7.3
-8.6
-8.7
-8.8
-9.0
-9.6
-9.7
-9.6
-9.7

0.0 0.0

0.0 0.0
-9.9
-10.1
-10.1
-10.2
-10.4
-10.6
-10.7
-11.0
-11.1
-11.2

4.6 10.4

12.1 0.2

18.4 18.6

24.0 20.7

45.8 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R2 Fl G Lr,lim dB(A) Leq,d 46.2 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point

6.8 6.6

6.9 6.8

6.7 7.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

6.9 6.4

6.2 6.0

5.9 5.5

5.3 4.8

4.6 4.8

4.6 4.4

4.3 4.0

3.7 3.6

3.5 3.3

3.2 3.1

3.0 21.5

20.2 13.2

12.6 19.4

11.7 25.4

21.9 46.1

0.0 0.0

0.0 0.0
Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R3 Fl G Lr,lim dB(A) Leq,d 46.5 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

6.9 6.9

5.6 5.6

7.0 6.3

6.1 6.0

5.8 5.7

5.4 4.8

4.6 3.9

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

3.8 3.6

3.5 3.3

3.2 3.0

2.9 2.7

2.7 2.5

2.4 2.3

2.1 20.5

20.9 14.1

14.1 21.1
-0.9

23.6 24.1

46.4 0.0

0.0 0.0

0.0 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R4 Fl G Lr,lim dB(A) Leq,d 47.8 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

6.7 6.5

6.2 9.4

9.1 7.8

8.8 8.7

8.7 8.6

8.4 6.5

6.2 5.5

5.3 5.1

4.9 4.8

4.6 4.4

4.3 4.1

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 3 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point

4.0 3.8

3.7 3.5

3.4 22.2

22.0 15.6

15.4 24.3
-3.3

24.3 24.3

47.7 0.0

0.0 0.0

0.0 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

18.0 18.6

18.9 18.4

18.0 17.9

17.0 16.8

16.5 16.2

15.5 15.2

14.9 13.8

13.5 13.3

13.1 12.8

13.2 12.9

12.7 12.5

12.2 12.0

11.8 10.4

10.2 31.1

26.7 17.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 4 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane
Point
Leq,d
dB(A)
A
dB
Default industrial noise
Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise

17.6 27.2
-10.4

17.7 26.0

49.5 0.0

0.0 0.0

0.0 Point
Point
Point
Default parking lot noise PLot
Receiver R5 Fl G Lr,lim dB(A) Leq,d 48.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

11.6 11.3

12.1 13.0

12.6 12.3

12.0 10.8

10.5 10.2

9.9 9.7

9.4 7.4

7.2 7.0

6.8 6.6

6.4 6.2

6.0 5.8

5.6 5.4

5.3 5.1

5.0 24.3

22.7 16.3

16.8 26.8
-6.0

22.3 26.0

48.3 0.0

0.0 0.0

0.0 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R6 Fl G Lr,lim dB(A) Leq,d 45.0 dB(A) Sigma(Leq,d) 0.0 dB(A) MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 5 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

25.8 26.6

27.3 28.0

28.4 28.7

28.6 28.3

27.6 27.0

26.3 25.5

24.6 21.6

20.9 20.4

19.9 19.4

18.6 18.1

17.6 17.2

17.0 16.5

16.3 15.9

15.4 39.7

26.0 15.4

20.6 24.0
-13.2

16.0 21.8

41.4 0.0

0.0 0.0

0.0 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
Receiver R7 Fl G Lr,lim dB(A) Leq,d 42.4 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point

14.9 15.2

15.4 16.2

16.5 16.7

17.2 17.7

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 6 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 001 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

18.2 19.0

19.5 20.2

20.7 23.4

24.2 24.9

25.6 26.3

27.1 27.7

28.2 28.5

28.6 28.3

27.9 27.2

26.6 38.3

20.1 16.8

25.4 21.2
-16.4

13.1 16.6

33.5 0.0

0.0 0.0

0.0 Default parking lot noise PLot
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Default parking lot noise PLot
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 7 SoundPLAN 9.0
Cathedral City Storage Noise
Octave spectra of the sources in dB(A) - 001 - Cathedral City Storage: Outdoor SP 3 Name Source type l or A
m,m²
Li R'w L'w Lw KI KT LwMax DO-Wall Time histogram Emission spectrum 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz dB(A) dB dB(A) dB(A) dB dB dB(A)

55.5 94.3 0.0 0.0
dB
0 dB(A)

77.6 dB(A)

89.2 dB(A)

81.7 dB(A)

86.2 dB(A)

86.3 dB(A)

86.7 dB(A)

84.0 dB(A)

77.8 dB(A)
PLot 65.0
PLot
7524.30
1682.55
100%/24h
100%/24h
Typical spectrum
Auto Parking Typical spectrum
HVAC

51.7 84.0 0.0 0.0 0 67.3 78.9 71.4 75.9 76.0 76.4 73.7 67.5 54.7 HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

74.9 74.9 0.0 0.0

62.8 62.8 0.0 0.0

62.8 62.8 0.0 0.0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h

52.0 52.0

52.0 46.8

46.8 46.8

46.8 60.5

60.5 60.5

48.3 48.3

62.9 62.9

62.9 51.8

51.8 51.8

51.8 67.2

67.2 67.2

55.5 55.5

69.5 69.5

69.5 56.4

56.4 56.4

56.4 69.1

69.1 69.1

57.6 57.6

66.1 66.1

66.1 54.0

54.0 54.0

54.0 61.2

61.2 61.2

45.9 45.9

48.9 48.9

48.9 39.5

39.5 39.5

39.5 HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
Drive-Thru - Idiling Car @
6ft Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Octave spectra of the sources in dB(A) - 001 - Cathedral City Storage: Outdoor SP 3 Name Source type l or A Li R'w L'w Lw KI KT LwMax DO-Wall Time histogram Emission spectrum 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz m,m² dB(A) dB dB(A) dB(A) dB dB dB(A)

62.8 62.8 0.0 0.0
dB
0 dB(A)

46.8 dB(A)

48.3 dB(A)

51.8 dB(A)

55.5 dB(A)

56.4 dB(A)

57.6 dB(A)

54.0 dB(A)

45.9 dB(A)

39.5 Drive-Thru - Idiling Car @
6ft Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Point 100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
Drive-Thru - Idiling Car @
6ft Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

62.8 62.8 0.0 0.0

62.8 62.8 0.0 0.0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 46.8

46.8 46.8

48.3 48.3

48.3 51.8

51.8 51.8

55.5 55.5

55.5 56.4

56.4 56.4

57.6 57.6

57.6 54.0

54.0 54.0

45.9 45.9

45.9 39.5

39.5 39.5

39.5 39.5
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Cathedral City Storage Noise
Octave spectra of the sources in dB(A) - 001 - Cathedral City Storage: Outdoor SP 3 Name Source type l or A Li R'w L'w Lw KI KT LwMax DO-Wall Time histogram Emission spectrum 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz m,m² dB(A) dB dB(A) dB(A) dB dB dB(A)

62.8 62.8 0.0 0.0
dB
0 dB(A)

46.8 dB(A)

48.3 dB(A)

51.8 dB(A)

55.5 dB(A)

56.4 dB(A)

57.6 dB(A)

54.0 dB(A)

45.9 dB(A)

39.5 Drive-Thru - Idiling Car @
6ft Idiling Cars
Idiling Cars
Point 100%/24h
100%/24h
100%/24h
Drive-Thru - Idiling Car @
6ft Point 62.8 62.8 0.0 0.0

80.0 80.0 0.0 0.0
0 0

46.8 47.0

48.3 57.0

51.8 64.1

55.5 70.1

56.4 73.0

57.6 74.0

54.0 74.1

45.9 72.0

39.5 Truck: loading general
cargo
Truck: loading general cargo Point
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 3 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Receiver R1 Fl G Lr,lim dB(A) Leq,d 46.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

46.7 33.0 42.1

16.5 33.6

7.5 38.1

14.0 38.7

15.1 39.4

15.1 34.9

8.0 23.8
-16.8
-23.1
-35.6
-50.1
-63.7
-64.1
-64.6
-61.5
-62.0
-63.2
-66.4
-66.1
-66.5
-65.0
-65.5
-65.9
-45.9
-49.3
-48.7
-57.5
-56.0
-56.5
-57.0
-56.8
-58.8
-60.6
-61.1
-58.3
-54.8
-58.0
-57.8
-28.7

1.8 21.9 9.9 -81.3

14.2 -34.1 -28.4 -24.7 -12.0

11.8 -37.5 -31.4 -27.4 -14.5
-7.4 -13.7
-9.5 -15.5
-6.2
-7.6
-4.7 -6.3
-6.8
-6.4
-4.8
-7.0 -5.7
-2.9
-4.5
-2.0
-4.2 -1.0

2.8 7.2

4.5 2.8 6.0 6.9 4.1 4.1 -0.6
-5.1
-2.0 -4.5
-13.8
-28.0
-42.4
-42.6
-42.9
-40.6
-40.9
-42.1
-43.9
-42.6
-42.8
-43.2
-43.4
-43.7
-25.7
-29.1
-27.7
-39.9
-39.0
-39.3
-39.6
-38.3
-39.1
-40.1
-40.4
-38.8
-33.8
-39.2
-38.5
-10.0
-19.8
-34.8
-51.9
-52.3
-52.6
-50.0
-50.3
-51.6
-53.9
-53.1
-53.4
-52.9
-53.2
-53.6
-34.8
-38.2
-37.2
-48.0
-46.9
-47.2
-47.6
-46.8
-48.0
-49.4
-49.7
-47.6
-43.4
-47.7
-47.3
-39.9 -58.1 -83.6
-56.4 -80.4
-70.0 -92.8
-80.8
-5.7 -4.9 -1.1 0.3 2.0
-12.7
-23.9
-24.0
-24.1
-22.8
-22.9
-23.8
-24.5
-24.6
-24.7
-24.2
-24.3
-24.4
-24.1
-22.0
-12.7
-23.9
-23.5
-23.6
-23.8
-22.3
-22.1
-22.6
-22.7
-22.0
-15.6
-22.5
-21.9

2.9 -11.9
-27.0
-27.1
-27.3
-25.6
-25.7
-26.9
-27.7
-23.8
-23.8
-27.4
-27.5
-27.6
-27.0
-25.0
-14.9
-26.9
-26.4
-26.6
-26.8
-25.3
-24.9
-25.4
-25.5
-24.8
-17.4
-25.6
-24.6

0.0 -0.2
-14.8
-25.5
-25.7
-25.8
-23.9
-24.1
-25.4
-26.4
-23.3
-23.4
-26.0
-26.1
-26.3
-24.5
-22.6
-13.7
-24.9
-24.3
-24.5
-24.7
-22.9
-23.0
-23.6
-23.8
-22.8
-16.0
-23.6
-22.7
-7.1

0.3 -41.5 -36.0 -32.5 -17.6 -13.3 -19.9
-10.2 -23.4 -40.9 -35.5 -21.1 -20.8 -19.6
-10.3 -23.5 -41.0 -35.6 -21.2 -20.9 -19.7
-10.4 -23.6 -41.1 -35.7 -21.3 -21.0 -19.7
-9.6 -23.1 -40.6 -35.2 -20.8 -20.6 -19.3
-9.7 -23.2 -40.7 -35.3 -20.9 -20.7 -19.4
-10.0 -23.3 -40.8 -35.4 -21.0 -20.7 -19.5
-11.0 -23.9 -41.4 -36.0 -21.6 -21.4 -20.1
-10.6 -24.0 -41.5 -36.1 -21.7 -21.4 -20.2
-10.7 -24.1 -41.6 -36.2 -21.8 -21.5 -20.2
-10.5 -23.7 -41.2 -35.7 -21.4 -21.1 -19.8
-10.6 -23.7 -41.2 -35.8 -21.5 -21.2 -19.9
-10.7 -23.8 -41.3 -35.9 -21.6 -21.3 -20.0
-8.6 -21.6 -39.1 -33.7 -19.4 -19.1 -17.8
-8.0 -21.7 -39.2 -33.8 -19.5 -19.2 -18.0
-4.9 -21.8 -39.4 -34.0 -19.6 -19.3 -18.1
-9.0 -21.5 -39.0 -33.6 -19.3 -19.0 -17.7
-8.4 -21.1 -38.6 -33.2 -18.9 -18.6 -17.4
-8.7 -21.2 -38.7 -33.3 -19.0 -18.7 -17.5
-8.8 -21.4 -38.9 -33.5 -19.2 -18.9 -17.6
-8.3 -21.9 -39.5 -34.1 -19.7 -19.4 -18.2
-8.8 -22.5 -40.0 -34.6 -20.2 -20.0 -18.7
-9.4 -22.9 -40.4 -35.0 -20.7 -20.4 -19.1
-9.5 -23.0 -40.5 -35.1 -20.8 -20.5 -19.2
-8.7 -22.4 -39.9 -34.5 -20.1 -19.9 -18.6
-6.3 -22.1 -39.6 -34.2 -19.8 -19.6 -18.3
-8.6 -22.2 -39.7 -34.3 -19.9 -19.7 -18.4
-8.6 -22.3 -39.8 -34.4 -20.0 -19.8 -18.5
-12.6
-26.9
-27.0
-27.1
-26.6
-26.7
-26.8
-27.6
-27.7
-27.8
-27.3
-27.4
-27.5
-24.7
-24.8
-25.0
-24.6
-24.1
-24.2
-24.4
-25.1
-25.8
-26.3
-26.4
-25.7
-25.3
-25.4
-25.5
-11.4
-23.8
-23.9
-24.0
-23.4
-23.6
-23.7
-24.5
-24.6
-24.7
-24.1
-24.3
-24.4
-21.6
-21.7
-21.9
-21.4
-21.0
-21.1
-21.3
-22.0
-22.7
-23.2
-23.3
-22.5
-22.1
-22.3
-22.4
-11.0
-13.3
-27.7
-27.9
-28.0
-27.4
-27.5
-27.6
-28.4
-28.5
-28.6
-28.1
-28.2
-28.3
-25.5
-25.7
-25.8
-25.4
-24.9
-25.1
-25.2
-25.9
-26.6
-27.1
-27.3
-26.5
-26.1
-26.2
-26.3
-12.2
-23.6
-23.7
-23.8
-23.3
-23.4
-23.5
-24.2
-24.3
-24.4
-23.9
-24.0
-24.1
-21.6
-21.8
-21.9
-21.5
-18.7
-21.2
-21.4
-22.0
-22.6
-23.1
-23.2
-22.5
-22.1
-22.3
-22.4
-13.1
-29.5
-29.6
-29.7
-29.2
-29.3
-29.4
-30.1
-30.2
-30.3
-29.8
-29.9
-30.0
-25.1
-24.0
-24.1
-25.0
-24.6
-24.7
-24.9
-24.2
-24.9
-29.0
-29.1
-24.7
-24.4
-24.5
-24.6
-4.2
-12.0
-24.9
-26.3
-26.4
-24.6
-24.7
-24.8
-26.8
-26.9
-27.0
-26.5
-26.6
-26.7
-24.2
-21.9
-22.0
-24.1
-23.7
-23.8
-23.9
-22.1
-23.9
-24.4
-24.5
-23.8
-22.2
-22.4
-23.7
-12.0
-22.0
-22.1
-22.2
-21.7
-21.8
-21.9
-23.8
-23.9
-24.0
-22.3
-22.4
-22.5
-21.3
-18.9
-19.1
-21.1
-20.7
-20.9
-21.0
-19.2
-19.8
-21.5
-21.6
-19.7
-19.3
-19.5
-19.6
-12.0
-23.2
-23.3
-23.4
-21.7
-21.8
-21.9
-23.8
-23.9
-24.0
-23.5
-23.6
-23.7
-22.5
-20.2
-20.3
-22.3
-21.9
-22.1
-22.2
-20.4
-21.1
-21.5
-21.6
-20.9
-20.6
-20.7
-20.8
-0.4
-9.0 -8.3 -13.4
-23.2
-23.3
-23.4
-22.9
-23.0
-23.1
-23.8
-23.9
-24.0
-23.5
-23.6
-23.7
-23.4
-21.4
-21.5
-23.3
-22.9
-23.0
-23.2
-21.6
-22.2
-22.6
-22.8
-22.1
-21.7
-21.9
-22.0
-0.5
-14.6
-25.4
-25.5
-25.6
-23.8
-23.9
-25.2
-26.1
-22.5
-22.5
-25.8
-25.9
-26.0
-25.1
-23.0
-13.1
-24.9
-24.4
-24.5
-24.7
-23.3
-23.0
-23.5
-23.6
-22.8
-15.5
-23.6
-22.6
-2.3
-19.7
-30.4
-30.5
-30.7
-28.7
-28.9
-30.2
-31.4
-28.9
-29.0
-30.9
-31.0
-31.2
-29.0
-27.1
-19.0
-29.4
-28.8
-29.0
-29.2
-27.5
-27.7
-28.4
-28.6
-27.5
-21.2
-28.2
-27.3
-21.5
-35.1
-35.3
-35.5
-33.4
-33.6
-34.9
-36.3
-34.4
-34.5
-35.8
-35.9
-36.2
-18.7
-31.3
-24.1
-33.6
-32.9
-33.1
-33.3
-31.8
-32.2
-33.0
-33.2
-32.0
-26.3
-32.6
-31.8
-7.7
-19.5
-19.6
-19.7
-19.1
-19.2
-19.3
-21.2
-21.3
-21.4
-19.8
-19.9
-20.0
-19.9
-17.6
-17.7
-19.7
-19.3
-19.4
-19.6
-17.8
-18.5
-18.9
-19.0
-18.3
-18.0
-18.1
-18.2
-21.5
-21.6
-21.7
-21.2
-21.3
-21.4
-22.1
-22.2
-22.3
-21.8
-21.9
-22.0
-21.9
-19.7
-19.9
-21.7
-21.3
-21.4
-21.6
-20.0
-20.6
-21.0
-21.1
-20.5
-20.1
-20.2
-20.3
-81.4
-82.1
-78.3 -99.5
-79.0
-80.1
-84.6
-84.8
-85.4
-82.7
-83.3
-84.0
-62.2 -82.4
-65.3 -85.0
-65.2 -85.5
-71.4 -88.7
-69.5 -86.0
-70.1 -86.9
-70.8 -87.8
-71.5 -89.8
-74.6 -94.3
-77.1 -97.8
-77.7 -98.7
-73.8 -93.3
-70.9 -90.2
-73.0 -91.7
-73.2 -92.3

4.9 -14.3
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R2 Fl G Lr,lim dB(A) Leq,d 47.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d

47.6 33.6 42.8

17.2 -4.1
-5.1

34.4 9.0

39.2 16.1

3.2 40.0

16.9 7.4

40.4 16.9

11.3 2.9

36.2 9.4

25.4 -14.1
-15.7
-32.1

3.0 23.4 10.2 -73.8

20.2 -36.2 -30.2 -26.2 -13.2

14.5 -36.5 -30.5 -26.5 -13.6
-8.2 -14.2
-8.6 -14.6
-6.1
-7.0
-5.2
-6.2
-3.1
-5.2
-1.0
-3.3

1.0 2.1

0.7 9.1

5.4 11.2

7.4 10.6

4.8 12.6

5.7 11.7

2.8 7.4
-2.0

6.4 1.3 -3.5 -31.0 -47.3 -70.2 -99.6
-1.4 1.6 3.2 -3.7 -9.7 -16.7 -52.1 -74.9
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A)

3.5 dB(A)

5.2 dB(A)

6.1 dB(A) dB(A)

3.3 dB(A) dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

13.9 -39.0 -32.9 -29.0 -16.0 -11.0 -17.0

4.1 -21.7 -38.7 -32.7 -17.7 -16.8 -14.8

3.8 -21.8 -38.8 -32.8 -17.8 -16.9 -14.9

3.7 -21.9 -38.9 -32.9 -17.9 -17.0 -15.0

4.5 -21.4 -38.4 -32.4 -17.4 -16.4 -14.4

4.4 -21.5 -38.5 -32.5 -17.5 -16.5 -14.5

4.2 -21.6 -38.6 -32.6 -17.6 -16.7 -14.7

3.3 -22.3 -39.3 -33.3 -18.3 -17.4 -15.4

3.2 -22.4 -39.4 -33.4 -18.4 -17.4 -15.5

3.1 -22.5 -39.5 -33.5 -18.5 -17.5 -15.5

3.6 -22.0 -39.0 -33.0 -18.0 -17.1 -15.1

3.5 -22.1 -39.1 -33.1 -18.1 -17.2 -15.2

3.3 -22.2 -39.2 -33.2 -18.2 -17.3 -15.3

6.2 -16.9 -33.9 -28.0 -13.0 -12.1 -10.2

6.7 -17.0 -34.0 -28.1 -13.2 -12.3 -10.4

6.5 -17.2 -34.2 -28.2 -13.3 -12.4 -10.5

5.0 -16.8 -33.8 -27.8 -12.9 -12.0 -10.1
-9.0
-21.2
-21.3
-21.4
-20.7
-20.9
-21.0
-21.9
-22.0
-22.2
-21.5
-21.7
-21.8
-16.2
-16.3
-16.5
-16.0
-15.5
-15.7
-15.8
-16.7
-19.9
-20.5
-20.6
-19.7
-16.8
-17.0
-17.1
-7.1
-17.2
-17.4
-17.5
-16.8
-16.9
-17.1
-18.0
-18.1
-18.2
-17.6
-17.7
-17.9
-12.4
-12.5
-12.7
-12.2
-11.7
-11.9
-12.0
-12.8
-16.0
-16.5
-16.7
-15.8
-13.0
-13.2
-13.3
-4.3
-8.2
-20.3
-20.4
-20.6
-19.9
-20.0
-20.2
-21.1
-21.2
-21.3
-20.7
-20.8
-21.0
-15.6
-15.7
-15.9
-15.4
-14.9
-15.1
-15.2
-16.1
-19.0
-19.6
-19.8
-18.9
-16.2
-16.4
-16.5
-6.2
-16.3
-16.4
-16.6
-15.9
-16.1
-16.2
-17.0
-17.1
-17.2
-16.7
-16.8
-16.9
-11.4
-11.6
-11.8
-13.8
-13.3
-13.4
-13.6
-11.9
-15.2
-15.7
-15.8
-15.0
-12.1
-14.7
-14.9
-4.1
-16.6
-17.6
-17.7
-16.3
-16.4
-16.5
-18.1
-18.2
-18.3
-17.8
-17.9
-18.0
-15.2
-14.6
-14.7
-16.7
-16.3
-16.4
-16.6
-14.9
-15.6
-16.0
-16.2
-15.4
-15.0
-15.1
-15.3

5.1 -2.1
-14.7
-14.8
-15.0
-14.4
-14.5
-14.6
-15.4
-15.5
-15.6
-15.1
-15.2
-15.3
-13.2
-12.6
-12.8
-14.8
-14.3
-14.5
-14.7
-12.9
-13.6
-14.1
-14.2
-13.5
-13.1
-13.2
-13.3
-1.2
-9.2
-9.3
-9.4
-8.8
-8.9
-9.1
-9.9
-10.0
-10.1
-9.5
-9.6
-9.8
-7.3
-6.8
-6.9
-8.8
-8.3
-8.5
-8.6
-7.1
-8.0
-8.6
-8.7
-7.9
-7.2
-7.4
-7.5
-0.3
-9.2
-9.4
-9.5
-8.9
-9.0
-9.1
-9.9
-10.0
-10.1
-9.6
-9.7
-9.8
-7.4
-6.8
-7.0
-8.9
-8.4
-8.6
-8.7
-7.1
-8.1
-8.6
-8.7
-7.9
-7.3
-7.4
-7.6

12.6 3.6
-5.4
-5.5
-5.6
-5.0
-5.1
-5.2
-6.1
-6.2
-6.3
-5.7
-5.8
-5.9
-3.6
-3.0
-3.1
-5.0
-4.6
-4.7
-4.9
-3.3
-4.2
-4.7
-4.9
-4.0
-3.4
-3.6
-3.7

5.3 -6.3
-6.4
-6.5
-5.9
-6.0
-6.2
-7.0
-7.1
-7.2
-6.6
-6.7
-6.9
-4.4
-3.8
-4.0
-5.7
-5.3
-5.4
-5.6
-4.1
-5.2
-5.7
-5.8
-5.1
-4.3
-4.4
-4.5

3.4 -1.5
-9.0
-9.5
-9.7
-8.4
-8.6
-8.8
-10.2
-10.4
-10.5
-9.9
-10.0
-10.2
-6.6
-6.2
-6.4
-7.9
-6.8
-7.5
-7.7
-6.6
-7.4
-8.1
-8.3
-7.2
-6.8
-7.0
-7.2
-3.3
-13.6
-14.2
-14.4
-13.0
-13.2
-13.4
-15.1
-15.2
-15.4
-14.6
-14.8
-15.0
-10.7
-10.3
-10.5
-12.0
-10.8
-11.5
-11.8
-10.8
-11.7
-12.6
-12.8
-11.4
-11.0
-11.2
-11.4

12.8 -9.5
-20.7
-21.3
-21.5
-19.9
-20.2
-20.4
-22.5
-22.7
-22.9
-21.8
-22.0
-22.3
-16.8
-16.5
-16.8
-18.1
-16.8
-17.6
-17.9
-17.1
-18.3
-19.4
-19.7
-18.0
-17.4
-17.6
-17.9
-16.2
-30.0
-30.6
-30.9
-29.0
-29.3
-29.6
-32.2
-32.5
-32.8
-31.3
-31.6
-31.9
-24.6
-24.4
-24.8
-26.0
-24.5
-25.2
-25.6
-25.2
-26.9
-28.3
-28.6
-26.5
-25.5
-25.9
-26.3
-31.0
-41.3
-41.9
-42.4
-39.9
-40.3
-40.8
-44.2
-44.6
-45.0
-42.9
-43.3
-43.8
-33.7
-33.7
-34.2
-35.1
-33.3
-34.1
-34.6
-34.7
-37.1
-39.0
-39.5
-36.5
-35.2
-35.7
-36.1
-7.0
-50.3 -72.2
-6.5
-6.6
-6.7
-6.1
-6.2
-6.4
-7.2
-7.3
-7.4
-6.9
-7.0
-7.1
-4.6
-4.0
-4.2
-6.0
-5.5
-5.7
-5.8
-4.3
-5.4
-5.9
-6.0
-5.2
-4.5
-4.6
-4.8

16.3 -5.8
-5.9
-6.0
-5.4
-5.5
-5.6
-6.2
-6.2
-6.4
-6.1
-6.2
-6.4
-3.9
-3.3
-3.5
-5.3
-4.8
-5.0
-5.1
-3.6
-4.6
-5.1
-5.3
-4.5
-3.8
-3.9
-4.0
-7.4
-7.6
-7.7
-7.0
-7.2
-7.3
-8.0
-8.0
-8.2
-7.8
-7.9
-8.1
-5.5
-4.9
-5.1
-6.9
-6.4
-6.6
-6.8
-5.2
-6.2
-6.7
-6.9
-6.0
-5.4
-5.5
-5.6
-4.2
-4.7
-4.8
-3.7
-3.9
-4.0
-5.2
-5.3
-5.4
-5.0
-5.1
-5.2
-2.4
-2.0
-2.1
-3.7
-3.2
-3.4
-3.5
-2.3
-2.9
-3.4
-3.6
-2.7
-2.5
-2.6
-2.8

17.7 -4.2
-4.8
-4.9
-3.8
-3.9
-4.1
-5.4
-5.5
-5.6
-5.1
-5.2
-5.3
-2.3
-1.8
-2.0
-3.6
-3.0
-3.2
-3.4
-2.2
-2.8
-3.4
-3.6
-2.6
-2.4
-2.5
-2.7
-57.7 -78.2
-58.4 -79.1
-59.1 -80.0
-55.8 -75.5
-56.4 -76.4
-57.0 -77.3
-61.5 -83.4
-62.2 -84.3
-62.7 -85.1
-59.7 -80.9
-60.3 -81.7
-61.0 -82.6
-46.9 -61.8 -82.3
-47.2 -62.5 -83.4
-47.9 -63.5 -84.8
-46.6 -62.5 -82.8
-46.1 -61.5 -81.0
-46.9 -62.5 -82.2
-45.9 -61.6 -81.5
-48.5 -64.3 -85.9
-51.9 -69.3 -92.6
-54.5 -73.7 -97.5
-55.2 -74.7 -98.8
-51.1 -68.3 -91.2
-48.4 -65.5 -86.5
-49.0 -66.4 -87.8
-50.5 -67.3 -89.0

5.5 -16.4 -33.4 -27.5 -12.5 -11.6

5.3 -16.5 -33.5 -27.6 -12.6 -11.8
-9.7
-9.8

5.1 -16.6 -33.7 -27.7 -12.8 -11.9 -10.0

6.4 -17.3 -34.3 -28.3 -13.4 -12.5 -10.6

5.3 -20.7 -37.7 -31.7 -16.7 -15.8 -13.8

4.8 -21.2 -38.2 -32.2 -17.2 -16.2 -14.2

4.6 -21.3 -38.3 -32.3 -17.3 -16.3 -14.3

5.5 -20.6 -37.6 -31.6 -16.6 -15.6 -13.6

6.2 -17.4 -34.4 -28.5 -13.5 -12.7 -10.7

6.0 -17.5 -34.5 -28.6 -13.7 -12.8 -10.9

5.9 -17.6 -34.7 -28.7 -13.8 -12.9 -11.0

21.5 -10.1
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 3 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R3 Fl G Lr,lim dB(A) Leq,d 48.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

48.6 34.5 43.8

19.5 -0.2

35.4 10.1

0.9 40.0

16.1 5.0

40.7 17.3

7.2 41.5

17.3 9.1

37.1 10.2

7.0 26.4
-10.9
-12.3
-26.7
-26.2
-38.7
-39.1
-39.6
-37.2

5.0 24.4 12.5 -63.7

19.6 -34.8 -28.7 -24.7 -11.7

15.1 -35.7 -29.7 -25.8 -12.9
-6.7 -12.7
-6.4 -12.5
-4.7
-4.7
-1.2
-4.1

0.8 -2.6

2.9 -0.8

3.9 0.2

9.1 4.9

11.0 6.7

9.3 10.9

7.0 10.5

4.4 7.6 2.5
-7.4
-1.4
-13.1
-12.6
-28.9
-29.2
-29.6
-27.8
-25.7 -39.6 -59.3 -84.9
-45.3 -66.0 -94.9
-43.7 -63.0 -89.9
-53.0 -70.8 -92.8
-53.6 -71.7 -95.0
-54.3 -72.6 -96.3
-51.0 -68.1 -90.1
-2.9 -2.7 1.1 4.3 6.0

6.5 4.3 -0.2

0.3 -1.6

15.3 -37.9 -31.9 -27.9 -14.9 -10.0 -16.0

3.2 -16.0 -33.0 -27.0 -16.7 -15.8 -13.8

3.0 -16.1 -33.1 -27.1 -16.8 -15.9 -13.9

2.9 -16.2 -33.2 -27.2 -17.0 -16.0 -14.0

3.6 -15.6 -32.6 -26.6 -16.4 -15.4 -13.4
-7.9 -6.0 -7.1 -5.1 -5.1 -3.2 0.3 1.2 5.1 6.9 4.8 7.5 4.9 4.9 -1.1 -6.8 -19.9
-20.0
-20.2
-19.5
-16.0
-16.1
-16.3
-15.5
-19.1
-19.2
-19.3
-18.6
-15.2
-15.3
-15.4
-14.7
-17.6
-17.7
-17.9
-17.2
-15.7
-15.8
-16.0
-15.2
-10.1
-10.3
-10.4
-9.7
-10.2
-10.3
-10.4
-9.7
-6.3
-6.4
-6.6
-5.8
-7.3
-7.4
-7.5
-6.8
-7.4
-7.6
-7.7
-7.0
-6.7
-6.8
-6.9
-6.2
-8.3
-8.4
-8.6
-7.8
-5.9
-6.0
-6.2
-5.4
-5.7
-5.9
-6.1
-5.2
-10.2
-10.3
-10.5
-9.6
-14.3
-14.5
-14.8
-13.6
-20.7
-21.0
-21.2
-19.8
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 4 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

3.5 -15.8 -32.7 -26.7 -16.5 -15.5 -13.5

3.3 -15.9 -32.8 -26.8 -16.6 -15.7 -13.7

2.4 -16.6 -33.6 -27.6 -12.6 -16.4 -14.4

2.3 -16.7 -33.7 -27.7 -12.7 -16.5 -14.6

2.1 -16.8 -33.8 -27.8 -12.8 -16.6 -14.6

2.7 -16.3 -33.3 -27.3 -17.1 -16.1 -14.1

2.7 -16.4 -33.4 -27.4 -12.4 -16.2 -14.2

2.5 -16.5 -33.5 -27.5 -12.5 -16.3 -14.3
-19.6
-19.8
-20.7
-20.9
-21.0
-20.3
-20.5
-20.6
-14.7
-14.8
-14.8
-14.6
-15.1
-14.5
-14.6
-14.9
-18.5
-19.2
-19.3
-18.3
-15.0
-15.1
-16.0
-15.7
-15.8
-16.8
-17.0
-17.1
-16.4
-16.5
-16.7
-11.0
-11.1
-11.2
-10.9
-11.4
-10.8
-10.9
-11.2
-14.6
-15.2
-15.4
-14.4
-11.3
-11.4
-12.2
-3.0
-18.8
-18.9
-19.9
-20.0
-20.2
-19.5
-19.6
-19.8
-14.3
-14.4
-14.5
-14.3
-14.6
-14.1
-14.2
-14.6
-17.6
-18.3
-18.5
-17.5
-14.6
-14.7
-15.4
-14.9
-15.0
-15.9
-16.1
-16.2
-15.6
-15.7
-15.8
-9.8
-17.3
-17.5
-18.4
-18.5
-18.6
-18.0
-18.1
-18.3
-14.8
-15.0
-15.2
-17.1
-16.4
-16.7
-16.9
-15.4
-16.3
-16.9
-17.0
-16.1
-15.6
-15.7
-15.9

4.3 -15.4
-15.5
-16.5
-16.6
-16.7
-16.1
-16.2
-16.4
-12.8
-13.0
-13.3
-15.1
-14.5
-14.7
-14.9
-13.4
-14.3
-14.9
-15.1
-14.1
-13.6
-13.8
-14.0
-9.8
-10.0
-10.9
-11.1
-11.2
-10.5
-10.7
-10.8
-7.1
-9.9
-10.0
-11.0
-11.1
-11.2
-10.6
-10.7
-10.8
-7.2
-6.0
-6.1
-7.1
-7.2
-7.3
-6.7
-6.8
-7.0
-3.3
-3.5
-3.7
-5.6
-5.2
-5.3
-5.4
-3.8
-4.9
-5.5
-5.7
-4.7
-4.0
-4.1
-4.3
-7.0
-7.1
-8.0
-8.2
-8.3
-7.7
-7.8
-7.9
-4.3
-4.4
-4.6
-6.3
-3.7
-6.2
-6.4
-4.7
-6.0
-6.6
-6.7
-5.8
-4.9
-5.0
-5.2
-7.2
-7.3
-8.2
-8.4
-8.5
-7.9
-8.0
-8.1
-4.5
-4.6
-4.8
-6.6
-3.8
-6.5
-6.6
-4.4
-5.8
-6.6
-6.9
-5.1
-3.9
-3.7
-4.1

15.7 -6.4
-6.5
-7.5
-7.6
-7.7
-7.1
-7.2
-7.4
-3.7
-3.9
-4.0
-5.9
-3.1
-5.7
-5.9
-3.6
-5.1
-5.8
-6.1
-4.4
-3.2
-2.9
-3.4
-8.0
-8.1
-9.1
-9.3
-9.4
-8.7
-8.8
-9.0
-5.3
-5.4
-5.6
-7.5
-4.6
-7.3
-7.5
-5.2
-6.7
-7.5
-7.7
-6.0
-4.8
-4.5
-5.0
-5.5
-5.7
-6.8
-6.9
-7.0
-6.3
-6.5
-6.6
-2.8
-2.9
-3.1
-5.1
-2.1
-4.8
-5.0
-2.8
-4.2
-5.0
-5.2
-3.5
-2.3
-2.1
-2.6

16.3 -5.4
-5.6
-6.7
-6.9
-7.0
-6.2
-6.4
-6.6
-2.5
-2.6
-2.8
-4.8
-1.9
-4.5
-4.7
-2.5
-4.0
-4.8
-5.0
-3.3
-2.1
-1.9
-2.4
-9.8
-10.0
-11.3
-11.5
-11.6
-10.7
-10.9
-11.1
-6.6
-13.9
-14.1
-15.6
-15.9
-16.0
-15.0
-15.2
-15.4
-10.3
-10.0
-9.7
-20.1
-20.4
-22.3
-22.6
-22.8
-21.5
-21.8
-22.1
-14.7
-15.7
-15.5
-16.3
-13.8
-17.7
-17.9
-15.5
-18.1
-19.3
-19.6
-17.4
-15.2
-15.8
-16.7
-28.2
-28.5
-31.0
-31.4
-31.7
-30.0
-30.3
-30.7
-21.6
-21.7
-21.8
-21.5
-20.7
-22.1
-22.4
-22.0
-25.6
-27.1
-27.5
-24.9
-22.0
-22.6
-24.2
-37.7
-38.2
-41.5
-42.0
-42.4
-40.1
-40.6
-41.1
-28.3
-28.6
-30.0
-29.2
-28.3
-29.6
-30.0
-30.3
-34.3
-36.3
-36.8
-32.6
-30.6
-31.2
-31.9
-4.2
-51.7 -69.0 -91.3
-52.3 -69.9 -92.6
-56.9 -76.2
-57.5 -77.1
-58.1 -77.9
-55.0 -73.5 -97.6
-55.6 -74.4 -98.7
-56.3 -75.3

6.4 -13.8 -31.9 -26.1 -11.4 -10.6

6.3 -13.9 -32.0 -26.2 -11.4 -10.7

6.2 -14.1 -31.0 -26.3 -11.5 -10.7

4.6 -13.6 -31.8 -26.1 -11.3 -10.6

6.5 -13.2 -32.9 -27.1 -12.2 -11.4

4.8 -13.3 -31.7 -26.0 -11.2 -10.6

4.6 -13.5 -31.8 -26.0 -11.3 -10.6

6.4 -14.2 -31.2 -26.3 -11.5 -10.8
-8.9
-8.9
-9.0
-8.9
-9.6
-8.8
-8.8
-9.0
-39.7 -53.4 -71.0 -91.4
-40.3 -54.2 -72.1 -92.9
-41.9 -56.2 -74.5 -95.7
-40.4 -53.9 -71.1 -91.1
-39.4 -52.4 -68.9 -87.9
-40.5 -53.5 -70.2 -89.4
-41.1 -54.3 -71.3 -90.9
-42.4 -57.0 -75.5 -97.1
-47.1 -62.7 -82.8
-49.7 -66.3 -87.7
-50.4 -67.2 -89.0
-45.3 -60.7 -80.5
-43.0 -57.8 -76.7 -98.7
-43.7 -58.7 -77.9
-44.5 -59.7 -79.1
-10.0
-10.2
-12.1
-11.5
-11.7
-11.9
-10.4
-11.3
-14.4
-14.6
-11.1
-10.6
-10.8
-10.9
-7.3 -7.3 -6.3
-7.4 -7.5 -5.9
-9.3 -9.4 -8.9 -12.6
-9.0 -9.0 -6.0 -9.7
-9.0 -9.1 -8.6 -12.2
-12.4
-9.6
-9.2 -9.3 -8.8
-7.6 -7.7 -5.7

4.7 -14.9 -31.8 -30.6 -15.6 -14.7 -12.7

4.0 -15.4 -32.4 -26.4 -16.1 -15.2 -13.2

3.8 -15.5 -32.5 -26.5 -16.3 -15.3 -13.3

5.2 -14.7 -31.7 -30.5 -15.5 -14.5 -12.5
-8.8 -8.8 -8.3 -12.2
-13.2
-13.4
-11.5
-9.1
-9.4 -9.4 -9.2
-9.6 -9.6 -9.4
-8.6 -8.6 -7.6

6.6 -14.3 -31.3 -26.4 -11.6 -10.9

6.6 -14.5 -31.4 -26.5 -11.7 -10.9
-9.1
-9.1
-7.7 -7.8 -5.5
-7.9 -8.0 -6.2 -9.8

6.1 -14.6 -31.6 -27.7 -12.8 -12.0 -10.1

20.7 -9.0
-8.1 -8.2 -6.7 -10.7

11.8 12.3
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 5 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R4 Fl G Lr,lim dB(A) Leq,d 49.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

49.6 35.4 44.8

20.7 1.5

36.3 11.2

2.5 41.1

16.8 6.5

42.0 18.2

8.4 42.5

18.1 9.7

38.6 11.6

8.0 29.1
-7.2

10.2 25.4 13.6 -53.7

20.7 -33.0 -27.0 -23.0 -10.0

16.2 -37.5 -31.4 -27.5 -14.5

15.4 -36.7 -30.7 -26.7 -13.7
-5.0 -11.0
-7.0 -13.0
-8.8 -14.8
-0.5
-5.0

0.4 -4.1

2.4 -2.2

4.5 -0.2

5.5 0.7

10.5 5.6

12.4 7.3

10.4 7.6

11.8 8.6

10.6 6.0

7.3 4.2
-5.5

1.2 -11.1
-11.0
-25.5
-25.8
-26.1
-24.4
-24.7
-25.1
-27.4
-27.7
-28.0
-8.0 -19.4 -31.1 -48.0 -70.1
-41.2 -59.6 -85.4
-39.0 -55.8 -79.5
-45.7 -61.2 -78.9
-46.2 -61.9 -82.2
-48.0 -62.6 -83.1
-43.9 -57.1 -75.9 -97.7
-44.5 -57.3 -76.5 -99.3
-45.1 -58.0 -77.7
-50.3 -67.2 -88.9
-50.9 -68.0 -90.1
-51.5 -68.8 -91.1
-3.0 -2.1 1.7 5.0 5.9 1.4

0.0 0.1 -24.3
-23.3
-34.1
-34.5
-35.0
-31.7
-33.2
-33.6
-36.6
-37.1
-37.5
-6.7 -4.8 -5.9 -3.9 -3.9 -2.0 1.5 2.5 6.4 8.1 3.9 5.7 6.8 4.2 4.4 -1.0 -6.1

4.6 -19.7 -36.7 -30.7 -15.7 -14.7 -12.7

4.4 -19.8 -36.8 -30.8 -15.8 -14.8 -12.8

4.3 -19.9 -36.9 -30.9 -15.9 -15.0 -13.0

5.1 -19.3 -36.3 -30.3 -15.3 -14.3 -12.3

4.9 -19.4 -36.4 -30.4 -15.4 -14.4 -12.4

4.8 -19.6 -36.5 -30.5 -15.5 -14.6 -12.6

3.7 -20.4 -37.4 -31.4 -16.4 -15.4 -13.4

3.5 -20.5 -37.5 -31.5 -16.5 -15.6 -13.6

3.4 -20.6 -37.6 -31.6 -16.6 -15.7 -13.7
-18.5
-18.7
-18.9
-18.0
-18.2
-18.4
-19.5
-19.6
-19.8
-14.6
-14.8
-14.9
-14.1
-14.3
-14.4
-15.5
-15.7
-15.8
-17.7
-17.8
-18.0
-17.2
-17.3
-17.5
-18.6
-18.8
-18.9
-13.8
-14.0
-14.1
-13.3
-13.4
-13.6
-14.7
-14.9
-15.0
-16.3
-16.4
-16.6
-15.7
-15.9
-16.1
-17.2
-17.3
-17.5
-14.3
-14.5
-14.6
-13.8
-14.0
-14.1
-15.3
-15.4
-15.5
-8.8
-8.9
-9.1
-8.3
-8.4
-8.6
-9.7
-9.8
-10.0
-8.8
-9.0
-9.1
-8.3
-8.5
-8.6
-9.7
-9.9
-10.0
-4.9
-5.1
-5.2
-4.4
-4.6
-4.7
-5.8
-6.0
-6.1
-6.0
-6.1
-6.2
-5.5
-5.6
-5.8
-6.8
-6.9
-7.1
-6.1
-6.2
-6.4
-5.6
-5.8
-5.9
-6.9
-7.1
-7.2
-5.3
-5.4
-5.6
-4.8
-5.0
-5.1
-6.1
-6.3
-6.4
-6.8
-7.0
-7.1
-6.3
-6.5
-6.7
-7.7
-7.8
-8.0
-4.3
-4.5
-4.7
-3.8
-4.0
-4.2
-5.2
-5.4
-5.5
-4.1
-4.2
-4.4
-3.5
-3.7
-3.9
-5.0
-5.2
-5.3
-8.3
-8.5
-8.7
-7.7
-7.9
-8.1
-9.3
-9.5
-9.7
-12.1
-12.3
-12.6
-11.4
-11.7
-11.9
-13.3
-13.6
-13.7
-18.0
-18.3
-18.5
-17.1
-17.4
-17.7
-19.5
-19.7
-20.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 6 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

4.1 -20.1 -37.0 -31.0 -16.0 -15.1 -13.1

4.0 -20.2 -37.1 -31.2 -16.2 -15.2 -13.2

3.8 -20.3 -37.3 -31.3 -16.3 -15.3 -13.3

9.6 -12.4 -29.3 -28.1 -13.1 -12.2 -10.2

8.7 -12.5 -29.5 -28.3 -13.3 -12.3 -10.3
-19.0
-19.2
-19.3
-15.3
-15.5
-12.8
-15.1
-14.4
-14.6
-14.8
-13.0
-16.9
-17.7
-17.9
-16.7
-13.2
-13.3
-13.5
-15.1
-15.2
-15.4
-11.3
-11.6
-8.9
-18.2
-18.3
-18.5
-11.9
-14.6
-12.0
-11.6
-13.5
-13.7
-14.0
-12.1
-16.1
-16.8
-17.0
-15.9
-12.3
-12.5
-12.7
-14.3
-14.4
-14.6
-7.8
-8.0
-8.3
-7.5
-9.2
-9.5
-9.8
-8.5
-9.7
-10.4
-10.6
-9.4
-8.8
-9.0
-9.2
-16.7
-16.9
-17.0
-12.8
-13.0
-13.3
-12.5
-14.2
-14.5
-14.7
-13.5
-14.6
-15.4
-15.6
-14.4
-13.7
-14.0
-14.2

5.9 -14.8
-15.0
-15.1
-10.8
-11.1
-11.3
-10.6
-12.2
-12.5
-12.8
-11.6
-12.7
-13.4
-13.6
-12.4
-11.8
-12.0
-12.2
-9.2
-9.4
-9.5
-5.5
-5.7
-5.5
-5.2
-7.0
-7.3
-7.5
-5.7
-7.2
-7.9
-8.1
-7.0
-5.9
-6.1
-6.3
-9.3
-9.4
-9.6
-5.5
-5.7
-5.5
-5.3
-7.0
-7.3
-7.5
-5.7
-7.2
-8.0
-8.1
-7.0
-5.9
-6.1
-6.3

13.3 -5.4
-5.5
-5.7
-0.3
-1.8
-1.6

0.0 -6.4
-6.5
-6.7
-1.0
-1.9
-0.9
-1.4
-2.2
-4.7
-4.9
-0.9
-4.5
-5.1
-5.3
-4.3
-1.5
-2.0
-2.2
-6.5
-6.7
-6.8
-1.1
-2.0
-1.1
-1.5
-2.3
-4.8
-5.0
-1.1
-4.6
-5.3
-5.5
-4.4
-1.3
-1.8
-2.3

17.0 -5.7
-5.9
-6.0
-0.3
-1.2
-0.3
-0.6
-1.5
-3.9
-4.2
-0.4
-3.8
-4.5
-4.6
-3.6
-0.5
-1.0
-1.4
-7.3
-7.4
-7.6
-1.7
-2.7
-1.8
-2.1
-3.0
-5.4
-5.7
-1.9
-5.3
-6.0
-6.2
-5.1
-2.0
-2.5
-2.9
-4.8
-4.9
-5.1

0.8 -4.6
-4.7
-4.9

1.3 -8.8
-9.0
-9.2
-2.0
-3.0
-2.5
-2.1
-3.8
-4.7
-4.9
-3.2
-6.4
-7.3
-7.5
-6.1
-3.3
-3.6
-4.0
-12.8
-12.9
-13.1
-5.2
-6.2
-5.9
-5.2
-7.1
-8.0
-7.9
-6.5
-9.9
-10.9
-11.2
-9.6
-6.9
-7.2
-7.5

14.5 -18.8
-19.0
-19.2
-9.8
-26.4
-26.7
-27.0
-16.1
-17.3
-17.3
-15.8
-17.0
-17.7
-18.0
-17.0
-22.1
-23.6
-24.0
-21.6
-18.0
-18.2
-19.4
-35.4
-35.8
-36.2
-23.0
-24.4
-24.5
-22.5
-23.4
-24.2
-24.6
-24.2
-28.4
-30.7
-31.2
-27.8
-25.3
-25.6
-25.9

1.3 -48.6 -63.1 -83.6
-49.1 -63.3 -84.7
-49.7 -66.4 -87.9
-32.9 -44.4 -58.9 -75.5
-34.5 -46.3 -61.2 -78.2
-34.9 -47.0 -62.4 -79.9
-32.2 -43.5 -57.7 -73.9
-32.8 -43.4 -56.8 -71.8
-33.6 -44.4 -58.0 -73.4
-34.2 -45.3 -59.2 -75.0
-34.6 -46.9 -62.5 -80.3
-39.6 -53.0 -70.2 -90.1
-41.4 -55.8 -74.2 -95.7
-43.3 -56.5 -75.2 -97.0
-38.8 -51.9 -68.8 -88.2
-35.9 -48.4 -64.3 -82.6
-36.3 -49.0 -65.3 -84.0
-36.8 -49.7 -66.2 -85.3
-0.1

0.6 0.3 -10.8
-11.4
-9.6

9.5 -12.7 -29.7 -23.7 -8.7 -7.7 -7.6 0.9

9.4 -12.2 -29.2 -27.9 -13.0 -12.0 -10.0 -11.1
-10.4
-10.7
-10.9
-9.0

0.6 1.1

8.2 -11.7 -28.7 -27.4 -12.4 -11.5

6.8 -11.9 -28.8 -27.6 -12.6 -11.7

6.5 -12.0 -29.0 -27.8 -12.8 -11.8
-9.5
-9.7
-9.8
-7.7
-3.1
-3.4
-3.6
-1.8
-3.3
-4.1
-4.2
-3.1
-2.0
-2.2
-2.4
-0.4
-2.8
-3.0

0.6 0.1 -10.9
-11.7
-11.7
-11.9
-15.3
-16.6
-16.9
-15.0
-12.3
-12.5
-12.8
-0.8
-1.8

9.3 -12.9 -29.8 -23.8 -8.9 -7.9 0.9

6.2 -18.4 -35.4 -29.4 -14.4 -13.5 -11.5

5.5 -19.0 -36.0 -30.0 -15.0 -14.0 -12.0

5.3 -19.2 -36.1 -30.1 -15.1 -14.2 -12.2

6.5 -18.3 -35.2 -29.2 -14.3 -13.3 -11.3
-13.0
-13.8
-13.9
-12.8
-9.2
-2.7
-3.5
-3.7
-2.5

0.5 -2.3
-3.1
-3.3
-2.1

9.2 -13.0 -30.0 -24.0 0.8

8.8 -13.2 -30.2 -24.2

8.5 -13.3 -30.3 -24.3
-9.0
-9.2
-9.3
-8.1
-8.2
-8.4
-7.8
-6.1
-6.2
-6.4
-9.4 0.1 0.4
-9.6 -0.4

17.8 0.0

22.2 -1.5
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 7 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

49.8 35.6

13.8 2.8

45.0 21.4

7.1 36.4

12.7 7.8

41.6 19.0

12.9 3.3

42.6 20.1

14.7 5.2

5.9 2.9

2.6 2.4

2.7 2.4

2.2 1.6

0.1 -0.1

2.2 2.0

1.8 7.0

7.0 42.4

20.1 15.6

4.2 5.3

4.9 4.7

4.4 4.8

4.6 4.4

3.6 2.1

1.9 4.2

4.0 3.8

9.3 9.2

37.5 14.2

13.0 -2.0
-0.2
-1.6
-1.9
-2.2
-1.1
-1.3
-1.5
-3.2
-4.8
-5.0
-2.4
-2.7
-3.0

4.1 26.7
-1.3

6.1 26.9 -37.4

26.7 -27.6 -21.6 -15.1

16.6 -34.8 -28.8 -24.8

17.6 -32.4 -26.5 -22.7
-2.1
-9.4
-9.8
-3.2 5.2
-2.5

6.1 -1.8

7.7 0.1

9.7 1.8

10.7 2.5

16.9 8.2

8.7 2.0

1.8 1.5

2.7 2.4

2.2 0.6

0.2 0.0

1.3 1.1

0.8 7.2

7.2 18.8

9.7 10.3

3.0 2.8

2.5 2.8

2.5 2.3

1.7 0.2

0.0 2.3

2.1 1.9

6.4 6.0

16.6 6.6

7.4 3.7

3.5 3.3

3.6 3.4

3.1 2.5

1.0 0.8

3.1 2.9

2.7 8.0

7.9 17.8

7.2 8.1

2.2 2.0

1.8 2.1

1.9 1.7

1.0 -0.5
-0.7

1.6 1.4

1.2 6.5

6.4 16.3

4.0 5.2

5.4 5.2

5.0 5.5

5.2 5.0

4.0 2.5

2.4 4.7

4.5 4.3

10.1 10.0

12.7 -0.7

0.8 1.6

1.4 1.1

1.8 1.6

1.4 0.1
-1.4
-1.6

0.8 0.6

0.3 6.7

6.5 9.9
-7.3
-5.0
-6.1
-6.2
-6.5
-5.6
-5.4
-5.8
-8.4
-10.0
-10.2
-7.2
-7.8
-8.1

0.2 8.1
-12.0
-9.1

0.4 -8.5 -15.8 -26.9 -41.8
-38.0 -52.7 -73.3 -99.9
-32.8 -45.7 -64.0 -87.6
-27.7 -38.5 -52.3 -67.9
-28.2 -39.3 -53.3 -69.4
-28.9 -40.2 -54.6 -71.1
-25.8 -35.8 -48.5 -62.9
-26.2 -36.6 -49.6 -64.4
-27.0 -37.6 -51.0 -66.2
-31.3 -43.5 -59.1 -76.9
-32.9 -45.3 -61.1 -79.1
-33.4 -46.0 -61.9 -80.6
-29.6 -41.1 -55.9 -72.7
-30.0 -41.8 -56.8 -74.0
-30.7 -42.7 -58.1 -75.6
-14.5 -21.0 -29.2 -37.9
-14.9 -21.8 -30.2 -39.1
-4.4 -10.5 -0.6 0.0 -23.6
-19.8
-18.4
-18.6
-19.2
-17.0
-17.3
-17.8
-20.9
-22.4
-22.8
-19.7
-20.0
-20.5
-8.5
-5.0 -8.8
-9.8
-0.8 1.0 -0.2 1.7 1.6 3.4 4.2 5.0

13.2 -16.8 -33.7 -27.8 -12.8 -11.8 -14.8
-15.0
-15.2
-14.0
-14.3
-14.5
-16.1
-16.3
-16.4
-15.4
-15.6
-15.9
-4.0
-10.8
-11.0
-11.3
-10.1
-10.3
-10.6
-12.1
-12.3
-12.5
-11.5
-11.7
-11.9

0.0 -13.9
-14.1
-14.3
-9.3
-5.8
-7.4
-7.6
-4.9
-5.2
-5.5
-8.6
-8.8
-9.0
-7.9
-8.1
-8.4

2.3 -10.8
-11.1
-11.3
-8.7
-7.6
-9.1
-9.4
-6.7
-7.0
-7.3
-10.3
-11.9
-12.1
-9.6
-9.9
-10.1
-0.7
-1.1
-1.9
-2.2
-2.4
-1.3
-1.5
-1.8
-4.7
-4.9
-5.1
-2.6
-4.3
-4.5

3.3 -1.9
-2.2
-2.4
-1.3
-1.5
-1.8
-3.3
-4.9
-5.1
-2.7
-2.9
-3.1

3.3 -12.1
-12.2
-12.6
-11.0
-11.1
-11.6
-13.9
-15.3
-15.6
-13.0
-13.1
-13.6
-4.3

12.9 -16.9 -33.9 -27.9 -12.9 -12.0 -10.0

12.7 -17.1 -34.1 -28.1 -13.1 -12.1 -10.1

13.3 -16.2 -33.2 -27.2 -12.2 -11.3

13.1 -16.4 -33.4 -27.4 -12.4 -11.4

12.8 -16.6 -33.6 -27.6 -12.6 -11.6
-9.3
-9.4
-9.6
-9.6 -10.2
-10.5
-13.6
-13.8
-14.0
-11.6
-13.1
-13.4
-2.6
-11.1
-15.2
-15.4
-15.6
-14.6
-14.8
-15.0
-3.1

11.8 -17.8 -34.7 -28.7 -13.7 -12.8 -10.8

10.4 -17.9 -34.9 -28.9 -13.9 -12.9 -10.9

10.2 -18.1 -35.0 -29.0 -14.0 -13.1 -11.1

12.5 -17.3 -34.2 -28.3 -13.3 -12.3 -10.3

12.2 -17.4 -34.4 -28.4 -13.4 -12.5 -10.5

12.0 -17.6 -34.6 -28.6 -13.6 -12.6 -10.6

18.0 -11.5 -28.5 -22.5

17.9 -9.1 -26.1 -20.1
-7.5
-5.1
-6.6
-4.2
-2.1
-2.2 -3.4 0.6 -2.5 1.9 -3.0 3.3 3.3 3.9 0.0 -4.4 -8.4
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 8 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A)

6.0 dB(A)

6.9 dB(A)

5.4 dB(A) dB(A)

8.8 dB(A)

5.3 dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

17.0 -9.5 -26.5 -20.5 -5.6
-7.1
-5.5
-6.1
-6.6
-5.9
-7.7
-4.6
-6.1
-4.6
-5.1
-5.6
-5.0
-6.7
-2.7
-0.4
-0.1

0.6 -3.8
-3.5
-4.4
-3.7
-3.0
-5.1
-9.3
-13.5
-13.8
-8.9
-5.5
-5.8
-8.5

0.1 0.5
-3.0
-2.6
-3.5
-2.8
-2.1
-3.3
-5.2
-8.8
-9.1
-4.8
-3.7
-4.1
-4.4

1.3 2.8
-3.7
-2.2
-3.1
-2.4
-1.7
-4.1
-6.6
-8.1
-8.4
-6.1
-4.7
-5.2
-5.6

13.6 -1.7
-0.2
-1.2
-0.5

0.2 2.9

3.7 2.8

3.5 4.2

2.5 0.6
-0.7
-1.0

1.0 2.2

1.8 1.4

2.8 3.7

2.8 3.5

4.2 2.5

0.6 -0.7
-1.0

1.0 2.1

1.8 1.4

21.0 6.7

7.7 6.7

7.4 8.1

6.4 4.6

3.2 2.9

5.0 6.1

5.7 5.4

5.6 6.8

6.7 7.7

7.3 5.3

3.9 3.2

3.0 4.2

5.0 4.8

4.5 8.1 2.6

4.4 4.3

4.6 4.8

2.4 0.5
-0.7
-0.9

0.8 2.2

2.0 0.9

24.9 -1.5

0.5 -6.2
-4.0
-3.8
-3.6
-3.5
-6.4
-8.4
-10.5
-10.7
-8.2
-6.4
-6.7
-8.1
-10.6
-8.2
-17.1 -24.0 -32.8 -42.3
-14.3 -20.6 -28.1 -36.3
-13.5 -19.3 -26.3 -33.5
-13.6 -19.6 -26.9 -34.6
-13.7 -20.0 -27.6 -35.5
-17.4 -24.7 -33.8 -43.5
-21.1 -29.6 -40.1 -52.1
-24.3 -33.8 -45.9 -59.5
-25.0 -34.9 -47.3 -61.3
-20.4 -28.6 -38.9 -50.1
-18.0 -25.4 -34.6 -44.7
-18.4 -25.8 -35.6 -46.3
-19.7 -27.7 -37.8 -48.8

18.4 -11.1 -28.0 -22.1 7.5

6.6 7.6

7.9 5.7

3.8 3.1

2.9 4.1

5.5 5.2

4.4 25.2

8.4 7.5

8.5 8.9

6.6 4.7

4.1 3.8

5.1 6.3

6.1 5.3

6.9 6.7

7.0 7.3

5.1 3.3

2.6 2.3

3.6 4.9

4.6 3.8

9.7 9.5

9.8 10.1

7.9 6.0

5.3 5.0

6.4 7.6

7.4 6.6

26.4 10.5

10.3 10.6

10.9 8.6

7.0 6.9

7.2 7.4

5.1 3.2

2.3 2.0

3.5 4.8

4.7 3.7

18.0 18.6

18.9 16.8
-4.8 -21.7 -15.7
-5.3 -22.3 -16.3
-5.8 -22.8 -16.8
-9.9 -26.9 -20.9
-0.4

0.3 1.8 0.5 -7.7

2.5 0.7 -7.7

0.1 1.0 3.2 0.9 -7.7
-3.0
-4.7
-8.9
-9.1
-4.4
-3.3
-3.7
-4.0
-0.2
-3.0
-7.5
-9.9
-1.7
-0.6
-1.0
-1.4

8.3 0.8 -2.2
-4.6
-6.1
-6.4
-4.1
-2.7
-3.2
-3.7
-1.7
-3.7
-5.2
-5.4
-3.4
-1.9
-1.9
-3.3
-10.8
-13.5
-15.8
-16.4
-12.8
-11.1
-11.4
-12.8

16.5 14.9 -10.0 -28.7 -22.7 -1.6
-3.1
-4.7
-1.1

0.3 6.8

13.8 -15.9 -32.8 -26.9 -11.9 -10.9

13.5 -16.1 -33.0 -27.0 -12.0 -11.1

5.9 5.7

15.2 16.5

16.2 15.5

31.1 -9.6 -28.3 -22.3
-8.5 -27.3 -21.3
-8.9 -27.6 -21.6
-9.2 -28.0 -22.0
-7.3
-6.3
-6.6
-7.0
-6.4
-5.3
-5.7
-6.0
-1.4

7.1 8.3
-0.2
-0.7

8.2 7.3
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 9 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

49.9 35.7

14.3 -0.5

45.0 21.7

3.7 36.6

12.3 4.6

41.2 17.8

8.6 42.6

19.5 10.5

4.3 42.7

19.6 11.6

4.5 38.0

13.7 9.4

27.3 -3.0

6.5 26.6 -43.8

22.7 -31.0 -24.9 -20.9 -7.9 -6.4 1.7
-3.8

2.6 -3.0

4.5 -1.0

6.5 0.9

7.5 1.9

12.6 6.7

14.5 8.5

12.5 6.0

13.7 7.1

12.4 4.7

9.0 6.4
-5.8

4.8 -10.6
-8.6
-2.5 -12.9 -22.5 -36.7 -55.4

16.0 -36.3 -30.3 -26.3 -10.8 -38.0 -54.4 -77.5

16.8 -35.4 -29.3 -25.4 -12.4
-5.8 -11.9
-7.4 -13.4
-1.9 -1.0 2.8 0.3

1.5 -0.7

0.6 -22.7
-20.1
-28.8
-29.2
-29.8
-27.2
-27.7
-28.2
-31.7
-32.2
-32.7
-30.3
-30.7
-31.2
-17.3
-17.9
-18.5
-16.8
-17.4
-18.0
-17.4
-5.4 -3.5 -4.6 -2.6 0.0 1.9 2.8 3.8 7.7 9.4 5.2 7.0 8.0 5.5 5.7 -4.3 -34.4 -49.4 -70.7 -98.1 -39.6 -52.6 -69.2 -88.1
-40.3 -53.5 -70.3 -89.8
-41.0 -54.4 -71.5 -91.5
-37.6 -49.9 -65.5 -83.3
-38.3 -50.8 -66.7 -84.8
-38.9 -51.7 -67.9 -86.4
-43.6 -57.9 -76.2 -98.1
-44.3 -58.9 -77.5 -99.8
-44.9 -59.7 -78.7

6.4 -18.5 -35.5 -29.5 -14.5 -13.5 -11.5

6.2 -18.6 -35.6 -29.6 -14.6 -13.7 -11.7

6.0 -18.8 -35.7 -29.8 -14.8 -13.8 -11.8

7.0 -18.0 -35.0 -29.0 -14.0 -13.1 -11.1

6.8 -18.2 -35.2 -29.2 -14.2 -13.2 -11.2

6.6 -18.3 -35.3 -29.3 -14.3 -13.4 -11.4

5.3 -19.3 -36.3 -30.3 -15.3 -14.3 -12.3

5.1 -19.5 -36.4 -30.4 -15.4 -14.5 -12.5

5.0 -19.6 -36.5 -30.6 -15.6 -14.6 -12.6

5.8 -18.9 -35.9 -29.9 -14.9 -13.9 -11.9

5.6 -19.1 -36.0 -30.0 -15.0 -14.1 -12.1

5.4 -19.2 -36.2 -30.2 -15.2 -14.2 -12.2
-17.0
-17.2
-17.4
-16.4
-16.6
-16.8
-18.1
-18.2
-18.4
-17.6
-17.7
-17.9
-13.1
-13.4
-13.7
-12.8
-11.8
-12.2
-12.5
-13.1
-13.3
-13.4
-12.5
-12.7
-12.9
-14.1
-14.3
-14.5
-13.6
-13.8
-14.0
-9.2
-16.1
-16.3
-16.5
-15.6
-15.7
-15.9
-17.2
-17.4
-17.5
-16.7
-16.9
-17.0
-9.7
-9.7 -14.6
-14.8
-15.0
-14.0
-14.2
-14.4
-15.8
-16.0
-16.1
-15.2
-15.4
-15.6
-10.2
-10.5
-10.9
-9.8
-12.7
-12.9
-13.1
-12.1
-12.3
-12.5
-13.8
-14.0
-14.2
-13.3
-13.5
-13.7
-6.9
-7.2
-7.4
-7.6
-6.6
-6.8
-7.0
-8.3
-8.4
-8.6
-7.8
-7.9
-8.1
-1.9
-2.1
-2.5
-1.6
-1.9
-2.2
-3.0
-7.2
-7.4
-7.6
-6.6
-6.8
-7.0
-8.3
-8.5
-8.6
-7.8
-7.9
-8.1
-1.9
-2.1
-2.5
-0.3
-1.9
-2.2
-1.3
-3.3
-3.5
-3.7
-2.7
-2.9
-3.1
-4.4
-4.5
-4.7
-3.8
-4.0
-4.2

3.3 -4.4
-4.6
-4.8
-3.8
-4.0
-4.2
-5.4
-5.6
-5.7
-4.9
-5.1
-5.3

1.8 -4.5
-4.7
-4.9
-3.9
-4.1
-4.3
-5.5
-5.5
-5.6
-5.0
-5.2
-5.4

1.7 -3.6
-3.8
-4.0
-3.1
-3.2
-3.4
-4.6
-4.7
-4.8
-4.2
-4.3
-4.5

2.6 -5.1
-5.3
-5.5
-4.5
-4.7
-4.9
-6.1
-6.3
-6.4
-5.7
-5.8
-6.0

1.2 -2.5
-2.7
-2.9
-1.9
-2.1
-2.3
-3.6
-3.7
-3.9
-3.1
-3.2
-3.4

3.9 -2.1
-2.3
-2.5
-1.4
-1.6
-1.8
-3.2
-3.4
-3.5
-2.7
-2.9
-3.1

4.6 -6.0
-6.2
-6.5
-5.3
-5.5
-5.8
-7.3
-7.5
-7.7
-6.7
-6.9
-7.1

0.9 -9.5
-9.7
-10.0
-8.7
-8.9
-9.2
-11.0
-11.2
-11.4
-10.2
-10.5
-10.7
-2.0
-2.3
-2.7
-1.7
-3.0
-3.4
-2.5
-14.8
-15.1
-15.4
-13.8
-14.1
-14.4
-16.5
-16.9
-17.1
-15.7
-16.0
-16.3
-6.5
-21.4
-21.7
-22.1
-20.2
-20.6
-21.0
-23.6
-24.0
-24.4
-22.5
-22.9
-23.3
-11.8
-12.3
-12.7
-11.4
-12.3
-12.8
-12.1
-9.9
-10.1
-9.0
-9.2
-9.5
-13.3
-13.5
-13.7
-12.8
-13.0
-13.2
-5.2
-41.6 -55.3 -72.7 -93.2
-42.2 -56.1 -73.8 -94.8
-43.0 -57.1 -75.1 -96.6
-25.4 -34.5 -46.0 -58.7
-26.1 -35.4 -47.1 -60.2
-26.9 -36.4 -48.5 -61.9
-24.7 -33.6 -44.7 -57.1
-24.9 -33.0 -43.3 -54.6
-25.6 -34.0 -44.5 -56.1
-25.2 -33.8 -44.7 -56.7

12.6 -15.5 -32.5 -26.5 -11.5 -10.6

12.3 -15.8 -32.7 -26.7 -11.7 -10.8

12.0 -16.0 -32.9 -27.0 -12.0 -11.0

13.0 -15.2 -32.2 -26.2 -11.2 -10.3
-8.6
-8.8
-9.0
-8.3
-7.3
-7.6
-8.0
-9.5 -10.0
-10.3
-9.4
-5.5 -8.5 3.0 1.5 1.4 2.3 0.9 3.7 4.3 0.6 -6.8
-9.8 -5.9 -8.9 2.7 1.2 1.2 2.1 0.6 3.4 4.0 0.3 -7.2
-8.9 -4.8 -6.6 3.6 2.1 2.0 2.9 1.5 4.2 4.9 1.3 -6.1

11.6 -14.3 -31.3 -25.3 -10.3

11.3 -14.6 -31.6 -25.6 -10.6
-9.3
-9.6
-7.9 -10.9
-11.3
-11.6
-6.0 -11.0
-11.4
-9.8
-9.0 2.0 0.6 0.5 1.4 -0.1
-0.4

0.6 2.7 3.4 -0.2
-0.5

0.4 -7.3
-8.2 -6.5 -9.5 1.7 0.3 0.2 1.1 2.4 3.1 -7.7

12.1 -14.9 -31.9 -25.9 -10.9 -10.0 -8.5 -6.9 -7.9 2.7 1.2 1.1 2.0 3.3 4.0 -6.9 MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 10 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A)

0.6 dB(A) dB(A) dB(A)

2.6 dB(A) dB(A) dB(A) dB(A)
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

10.8 -16.1 -33.1 -27.1 -12.1 -11.2 -9.2 -13.9
-15.2
-16.0
-16.2
-14.9
-14.2
-14.4
-14.7
-10.0
-11.2
-12.1
-12.3
-11.0
-10.2
-10.5
-10.7

0.3 -10.5
-14.3
-15.2
-15.4
-11.5
-10.8
-11.0
-11.2
-6.2
-7.6
-8.6
-8.8
-7.3
-6.5
-6.8
-7.1
-11.2
-12.6
-13.6
-13.8
-12.3
-11.5
-11.8
-12.0

7.8 -9.2
-10.7
-11.6
-11.8
-10.4
-9.5
-2.7
-5.3
-6.2
-6.4
-5.0
-4.3
-4.5
-4.8
-2.7
-5.3
-6.2
-6.4
-5.0
-3.0
-3.2
-4.8

15.2 1.2
-0.1
-2.3
-2.5

0.2 -0.2
-1.4
-3.5
-3.7
-1.1
-0.5
-0.7
-0.9
-0.3
-1.5
-3.6
-3.8
-1.2
-0.5
-0.8
-1.0

18.8 -0.8
-2.0
-4.2
-4.4
-1.7
-1.0
-1.2
-1.5

2.0 -1.1
-2.6
-4.9
-5.1
-2.2
-1.4
-1.6
-1.9
-4.1
-5.7
-8.2
-8.4
-5.3
-4.4
-4.7
-5.0

17.4 -8.7
-10.6
-13.2
-13.5
-10.1
-9.0
-14.2
-16.5
-19.4
-19.8
-15.9
-14.6
-15.1
-15.5
-20.0
-22.9
-26.2
-26.8
-22.2
-20.5
-21.0
-21.6

5.8 -28.5 -38.2 -50.4 -63.9
-32.3 -43.1 -56.9 -72.4
-36.3 -48.1 -63.2 -80.3
-37.0 -49.0 -64.4 -81.9
-31.3 -41.9 -55.2 -70.2
-29.2 -39.0 -51.5 -65.3
-29.9 -40.0 -52.7 -66.8
-30.6 -40.9 -53.9 -68.4

9.4 -17.1 -34.0 -28.0 -13.0 -12.1 -10.1

7.4 -17.7 -34.7 -28.7 -13.7 -12.8 -10.8

7.2 -17.9 -34.9 -28.9 -13.9 -12.9 -10.9
-0.6
-2.7
-2.9
-0.3

0.4 0.7
-1.5
-1.7

1.0 1.2
-1.0
-1.2

9.7 -16.9 -33.8 -27.8 -12.9 -11.9 1.5

10.5 -16.3 -33.3 -27.3 -12.3 -11.4

10.2 -16.5 -33.5 -27.5 -12.5 -11.5

9.9 -16.7 -33.7 -27.7 -12.7 -11.7
-9.9
-9.4
-9.5
-9.7

1.0 1.7 2.3
-9.8 0.7 0.1 1.5 2.1 -9.4
-10.1 0.5 -0.1 1.2 1.8 -9.8

24.3 -6.5 19.9
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 11 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Receiver R6 Fl G Lr,lim dB(A) Leq,d 45.3 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

42.0 27.8

14.0 7.0

36.5 19.8

10.6 0.6

27.3 9.0

33.0 12.7

13.5 2.1

35.0 10.5

13.6 1.4

36.1 9.1

30.9 3.9

17.4 -8.8
-4.9
-23.9
-13.6
-9.0
-9.5
-10.0
-6.9
-7.5
-8.0
-12.5
-13.1
-14.1
-10.6
-11.0
-12.1

0.9 -11.8

22.3 -39.0

25.7 -20.2 -14.4 -10.6

14.0 -29.6 -23.7 -19.9

20.5 -27.8 -22.0 -15.8

18.6 -10.6 -27.5 -21.6

18.1 -11.1 -28.0 -22.0

17.6 -11.5 -28.5 -22.5

2.2 -7.1
-3.0
-6.6
-7.0
-7.5
-4.9
-5.5
-6.0
-9.2
-9.6
-9.9
-8.0
-8.4
-8.8

0.7 -8.7
-4.3

1.4 9.0
-0.9

3.6 9.2
-0.9

4.1 10.1

0.6 9.7 11.9

1.5 13.0

1.8 16.9

5.2 18.3

6.3 14.9

2.4 15.4

2.7 12.6
-0.6

7.0 12.7
-0.9

6.9 8.7 8.4 4.8
-11.4
-2.1

0.4 2.6
-14.8
-4.9
-4.4
-4.9
-5.3
-2.6
-3.1
-3.6
-7.4
-7.9
-8.7
-5.8
-6.1
-7.1

4.4 -12.9 -18.5 -26.9 -37.9
-34.8 -45.0 -59.9 -79.6
-23.6 -32.2 -44.7 -60.5
-15.5 -22.3 -30.5 -39.1
-16.1 -23.1 -31.6 -40.5
-16.8 -24.0 -32.7 -42.0
-13.1 -19.2 -26.6 -34.1
-13.7 -20.1 -27.7 -35.6
-14.4 -21.0 -28.9 -37.1
-20.0 -28.0 -37.9 -48.7
-20.6 -28.9 -39.1 -50.3
-21.8 -30.3 -40.8 -52.3
-17.5 -24.9 -33.9 -43.6
-18.1 -25.6 -34.9 -44.9
-19.4 -27.2 -36.9 -47.3
-2.4

1.9 0.1 -5.6

2.6 -6.7

5.4 5.8 5.5 7.1 7.7 8.3 11.7 2.0

8.0 13.0

6.6 8.3 9.6 10.0
-3.1 6.9
-6.1
-6.6
-0.2
-0.8
-2.6
-8.2
-8.6
-8.9
-7.0
-7.4
-7.9
-3.0
-3.5
-4.0
-1.3
-1.9
-2.4
-5.7
-7.3
-7.6
-4.4
-4.8
-5.3

8.0 1.0 -2.1
-2.6
-3.1
-0.4
-1.0
-1.6
-4.8
-5.2
-5.5
-3.6
-4.0
-4.4

8.7 3.2 -1.7
-2.2
-2.7
-0.1
-0.7
-1.2
-4.5
-5.0
-5.5
-3.1
-3.5
-4.0

8.8 0.2 4.2 4.1 7.7 8.6 9.6 10.2

9.8 7.4 4.6
-0.3
-0.8

3.0 0.5 2.8 -0.3
-0.7

1.8 3.7 3.7 7.6 6.2 7.3 8.2 6.5 9.2 7.1 4.2 0.0

0.0 2.3 3.2 3.2 7.1 5.7 6.2 7.7 6.1 8.8 9.4 6.7 3.8 -0.4

20.4 2.0

19.9 -8.9 -25.8 -19.9
-9.5 -26.4 -20.4

2.7 4.9 5.7 5.7 9.6 9.4 9.3 10.1

9.6 8.7 11.4

10.9 10.5

7.3 12.5

12.1 11.7

7.9 9.0 6.2

2.4 2.1 4.3 1.3 5.2 5.2 9.0 8.2 8.7 8.3 8.6 5.8 1.6

19.4 -10.0 -27.0 -21.0

16.3 -13.2 -30.2 -24.2

15.9 -13.6 -30.5 -24.6

15.4 -13.9 -30.9 -24.9

17.2 -12.0 -29.0 -23.0

17.0 -12.4 -29.4 -23.4

16.5 -12.8 -29.8 -23.8

1.9 1.5 3.8 0.7 4.7 4.6 8.5 7.7 8.2 9.1 7.8 8.2 5.4 1.2 -6.2
-6.6
-6.9
-2.5
-2.9
-3.4
-1.7
-2.1
-2.5
-0.5
-0.9
-1.4

11.9 12.2

12.1 11.2

8.6 0.4 -1.7
-2.5
-3.5
-1.2
-1.2
-1.2

11.4 11.7

11.6 10.1

7.7 2.8 2.8 6.6 5.2 5.0 6.3 4.7 4.5 2.2 -2.2
-2.6
-3.4
-0.8
-1.1
-2.0

8.6 -0.1
-0.5

1.9 2.5 2.4 6.3 4.8 4.7 6.0 4.3 7.0 7.5 3.8 1.8

2.2 2.1 6.0 4.5 4.4 5.2 3.5 6.2 6.7 3.0 1.1

2.8 2.8 6.7 5.3 5.7 7.3 5.7 8.4 9.0 6.1 3.4

1.5 2.8 2.8 6.7 5.2 5.7 7.2 5.5 8.2 8.8 5.9 3.2

0.9 2.8 2.8 6.7 5.2 5.0 6.4 4.8 7.4 8.0 5.1 2.4

28.4 28.7

28.6 28.0

25.8 26.6

27.3 28.3

24.6 21.6

20.9 25.5

3.3 -11.9

4.8 -11.6

4.7 -11.7

2.6 -12.5
-2.6 -17.3

0.7 -16.3

1.7 -13.3

3.0 -12.1
-5.9
-5.6
-5.7
-6.6
-9.2
-8.3
-7.4
-6.1

9.1 10.0 12.0

9.4 10.3 12.3

9.3 10.2 12.2

13.8 14.1

14.0 13.2

10.8 11.6

12.4 13.6

9.4 15.3

15.6 15.5

14.8 12.0

13.3 14.1

15.1 10.2

6.9 15.1

15.4 15.3

14.6 12.4

13.2 13.9

14.9 11.1

6.8 19.1

19.4 19.3

18.6 16.2

16.9 17.7

19.0 14.9

11.3 10.1

15.8 17.8

18.0 17.9

17.3 15.2

15.9 16.7

17.6 13.6

10.6 10.0

14.5 17.4

17.7 17.6

17.0 14.9

15.6 16.3

17.3 13.7

10.4 9.8

18.1 18.3

18.2 17.6

15.6 16.3

17.0 17.9

14.4 11.6

10.6 15.3

16.1 16.4

16.3 15.7

13.6 14.2

15.2 16.0

12.4 9.7

18.7 18.9

18.8 18.3

16.5 17.1

17.7 18.6

15.3 12.3

11.8 16.3

19.1 19.3

19.3 18.7

17.0 17.6

18.2 19.0

16.0 13.5

13.1 16.8

15.4 15.6

15.5 15.0

13.3 13.9

14.5 15.3

12.3 9.9

12.6 12.8

12.7 12.2

10.5 11.1

11.7 12.5

9.5 -3.9
-3.6
-3.7
-4.4
-8.0 -12.6 -16.6
-7.7 -12.3 -16.2
-7.8 -12.4 -16.3
-8.6 -13.3 -17.5

8.3 9.1 9.1 8.8 4.6 1.2

8.2 8.9 9.0 8.8 4.6 1.1

8.4 5.8

6.7 7.6

8.8 4.3
-1.1
-1.8

5.3 9.4 11.3 7.3 8.1 8.2 8.2 4.0 0.5

6.7 7.6

8.7 9.6

4.6 5.5 5.8 6.5 2.2 -1.5
-0.7
-0.1

0.8 -6.6 -11.3 -16.6 -21.4

5.6 9.5 6.4 6.6 8.5 7.1 2.9 -5.8 -10.3 -15.4 -20.0

8.5 10.5

9.8 11.7

6.5 10.4

11.6 7.0

7.3 7.5 9.3 7.7 3.5 -5.0
-4.0
-9.4 -14.3 -18.6

7.7 8.5 8.6 10.4 -8.2 -12.8 -16.9

6.3 8.5 4.3
-4.4 -18.9 -11.9
-7.6 -24.6 -18.6
-8.3 -25.3 -19.3

5.2 2.2

1.6 6.2

7.2 4.2

3.6 8.2

3.1 3.9 4.5 5.5 1.1 -2.7
-5.8
-6.4
-1.7
-8.1 -13.0 -18.8 -24.2
-11.7 -17.4 -24.3 -31.1
-12.4 -18.4 -25.5 -32.7
-6.9 -11.6 -17.1 -22.1

0.0 3.9 0.8 6.1 1.1 3.0 7.0 2.9 -1.7
-2.2

2.0 -0.7

4.1 3.2 0.2 5.4 0.4 2.4 6.3 6.2 9.2 9.4 6.6 2.4
-3.2 -17.9 -9.7 8.1 5.0 10.3 5.4 7.3 11.1 12.0 14.6 13.3 13.1 10.3 6.3 MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 12 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

27.6 27.0

26.3 39.7

2.1 -12.9

1.2 -13.8

0.2 -16.8
-6.9
-7.8
-8.7

8.0 7.2

6.3 9.0 11.0

8.1 10.1

6.9 6.1

5.1 10.8

10.0 9.0

7.7 6.9

5.9 12.9

12.1 11.2

7.9 7.1

9.7 8.9

8.1 14.4

13.7 12.4

14.3 13.6

12.8 29.3

18.0 17.3

16.6 17.0

16.3 15.6

16.6 16.0

15.3 34.1

17.3 16.7

16.0 15.5

14.7 14.0

18.1 17.5

16.9 34.9

18.5 18.0

17.4 14.8

14.3 13.7

12.0 11.5

11.0 33.1

8.1 7.5

7.0 3.8

3.3 2.7

0.3 -0.3
-0.9

26.5 -4.6
-5.3
-8.9 -13.7 -17.9
-9.7 -14.7 -19.1

7.2 9.8

9.2 6.3 -6.0 -10.6 -15.8 -20.5

17.5 23.6
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 13 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Receiver R7 Fl G Lr,lim dB(A) Leq,d 42.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d

34.7 22.5

12.8 1.2

29.9 18.7

4.9 19.8

7.7 25.4

10.8 7.5

27.7 8.5

27.8 6.9

21.2 1.6

3.8 -12.0
-15.0
-18.3
-5.2

0.2 -40.0

21.0 -44.5

19.7 -28.4 -22.6 -18.8

16.8 -27.9 -22.0 -18.3

25.4 -20.6 -14.7 -10.8
-3.6
-5.6

2.0 7.1

7.9 8.5

4.4 5.3

6.2 8.1

7.3 6.5

9.0 9.0

8.7 -8.8
-8.4
-7.9
-9.2
-4.9
-7.3

0.5 3.2

0.3 3.6

0.2 5.1

1.6 4.8 6.4

2.3 7.0

3.5 11.0

8.4 12.3

9.6 7.6 8.8 9.2 6.2 6.1 1.7 1.0 -3.2
-6.6

4.3 7.9

8.4 8.8

6.1 6.7

7.4 8.6

8.1 7.6

9.1 9.1

8.9 -1.7
-1.3
-0.8
-2.1
-3.8
-3.4
-3.0
-0.3

2.6 4.8

5.5 2.1

0.2 1.0

1.6 -6.1
-9.5

2.2 -25.3 -34.3 -47.1 -63.6
-28.5 -37.3 -50.2 -67.0
-13.1 -18.6 -26.9 -37.8
-0.9

6.7 1.8 1.0 5.1 4.7 5.9

14.5 16.9

17.5 18.0

14.7 15.4

16.2 17.6

17.0 16.4

18.2 18.3

18.0 6.5

6.2 15.0

14.8 15.5

15.9 12.8

13.5 14.1

15.5 15.0

14.4 16.2

16.2 16.0

5.0 3.1 2.9

12.3 18.2

18.7 19.1

16.4 17.0

17.6 18.9

18.3 17.8

19.4 19.4

19.2 8.3
-1.7

8.2 -2.5

8.7 10.3 7.9

9.8 8.8 9.9 9.4 12.2

8.9 12.7

13.6 14.3

14.9 10.4

11.1 12.3

14.5 13.8

12.6 15.2

15.3 15.0

2.3 13.2

13.5 14.2

14.7 11.3

12.0 12.8

14.4 13.7

13.1 15.1

15.1 14.8

2.3 16.5

17.3 18.0

18.5 15.1

15.8 16.6

18.2 17.5

16.9 18.8

18.9 18.6

6.2 17.9

16.1 17.0

17.6 13.8

14.6 15.3

17.2 16.2

15.6 17.9

17.9 17.6

4.7 13.2

16.1 16.7

17.3 14.0

14.7 15.4

16.9 16.3

15.7 17.6

17.6 17.3

5.1 12.2

17.7 18.2

18.6 15.7

16.4 17.1

18.3 17.8

17.3 18.9

18.9 18.7

7.7 27.1

27.7 28.2

24.9 25.6

26.3 27.9

27.2 26.6

28.5 28.6

28.3 -1.1 -13.9
-0.2 -13.1

4.6 -12.4
-7.9
-7.1
-6.4

8.0 10.0

8.8 10.8

9.5 11.5

5.9 6.7 12.0

12.8 13.4

9.4 7.0 14.6

15.1 15.5

12.8 13.4

14.0 15.2

14.7 14.2

15.7 15.7

15.5 5.3

11.9 12.3

12.7 10.1

10.7 11.3

12.5 12.0

11.5 13.0

13.0 12.8

2.6 3.7 -4.7
-4.1
-3.6
-9.1 -14.2 -18.7
-8.4 -13.2 -17.6
-7.8 -12.5 -16.6

6.7 10.6

11.3 7.2

7.5 7.7 9.6 4.2 0.8

7.4 8.2 8.4 10.2

6.5 4.7 1.2
-4.2 -21.1 -10.6 5.4

6.2 7.1

7.4 8.2

9.1 3.2 4.1 4.6 1.8 -1.9
-1.2
-0.5

0.9 -7.2 -12.0 -17.7 -23.1
-6.3 -11.0 -16.5 -21.5
-5.5 -10.0 -15.3 -20.0
-3.2 -20.2
-2.2 -14.8

4.1 -12.9
-0.9 -13.7
-1.8 -14.5

5.0 -12.0

5.0 -11.9

4.7 -12.3
-9.7
-8.8
-6.9
-7.7
-8.5
-6.0
-6.0
-6.3

4.1 8.0 4.9 10.2

11.2 13.0

12.2 11.5

13.8 13.8

13.5 0.9

5.4 7.2 2.5

5.0 8.9 5.8 6.2 8.1 3.1

9.0 11.0

8.2 10.2

7.0 10.9

10.1 9.3

7.8 7.9 9.8 4.4 -3.9
-4.6
-5.2
-3.3
-3.3
-3.5
-8.2 -13.0 -17.3
-8.9 -13.9 -18.4
-9.7 -14.8 -19.5
-7.4 -12.1 -16.1
-7.4 -12.0 -16.1
-7.7 -12.4 -16.5

6.2 7.0 7.2 9.1 3.9 0.4

7.4 9.4 5.4 6.2 6.5 8.4 3.3 -0.2

9.9 11.9 1.5

9.9 11.9

9.6 11.6

7.8 11.7

11.8 11.4
-1.3
-0.9
-0.4
-1.7
-2.8
-2.5
-2.1

0.0 8.6 8.7 10.6

10.6 10.3
-1.8
-1.6
-1.1
-2.6
-4.0
-3.6
-3.1
-0.7

2.0 4.9

7.9 8.7 8.8 4.9 1.5

7.5 8.3 8.5 4.7 1.3

16.5 -12.8 -29.8 -23.8

16.7 -12.4 -29.4 -23.4

17.2 -11.9 -28.9 -22.9

16.2 -13.2 -30.1 -24.2
-7.8
-7.4
-6.9
-8.2
-9.3
-8.9
-8.6
-6.5
-0.1

3.8 -5.8
-5.4
-4.9
-6.2
-7.3
-6.9
-6.6
-2.5

3.1 -6.5
-4.8
-4.3
-6.9
-11.8
-11.4
-11.1
-3.9
-1.1

1.6 -4.4
-4.0
-3.5
-4.8
-5.9
-5.5
-5.2
-3.1
-0.3

2.5 -4.1
-3.6
-3.0
-4.6
-6.0
-5.5
-5.1
-2.6

0.0 -6.8
-6.3
-5.7
-7.3
-9.2
-8.7
-8.2
-5.2
-1.9

0.4 -11.8
-11.2
-10.5
-12.4
-14.6
-14.0
-13.4
-9.9
-6.1
-3.4
-2.6
-6.7
-9.2
-8.2
-7.5

25.6 -19.1 -26.9 -36.5 -46.9
-18.3 -25.9 -35.2 -45.3
-17.4 -24.7 -33.7 -43.3
-19.8 -27.8 -37.8 -48.6
-22.5 -31.2 -42.1 -54.1
-21.8 -30.2 -40.8 -52.4
-21.0 -29.3 -39.5 -50.7
-16.6 -23.7 -32.5 -41.7
-12.1 -18.1 -25.3 -32.7
-9.0 -14.2 -20.4 -26.3
-8.0 -13.1 -19.0 -24.6
-12.9 -19.1 -26.6 -34.4
-15.8 -22.6 -31.0 -39.9
-14.6 -21.3 -29.4 -37.9
-13.8 -20.3 -28.1 -36.2

1.4 2.4 2.4 6.3 4.8 5.3 6.8 5.3 8.0 8.6 5.7 3.0

1.9 2.9 2.9 6.8 5.3 5.8 7.3 5.7 8.4 9.1 6.1 3.5

0.4 2.3 2.2 6.1 4.5 4.4 6.3 4.8 7.4 8.0 5.0 2.3

14.9 -14.2 -31.2 -25.2 -10.2 -1.0
-0.6
-0.1

2.3 1.3 1.5 5.3 3.7 3.5 4.8 3.3 5.9 6.4 2.7 0.7

15.2 -13.9 -30.9 -24.9

15.4 -13.5 -30.5 -24.5

17.7 -11.5 -28.5 -22.5
-9.9
-9.5
-7.5
-4.7

2.8 1.9 1.8 5.6 4.1 3.9 5.2 3.6 6.2 6.8 3.0 1.1

2.0 1.9 5.7 4.2 4.0 5.4 3.8 6.5 7.0 3.8 1.4

3.3 3.3 7.2 5.7 6.8 7.7 6.1 8.8 9.5 6.7 3.9

20.7 23.4

24.2 20.2
-8.7 -25.7 -19.7
-5.9 -22.8 -16.9
-5.0 -22.0 -14.2
-9.4 -26.4 -20.4

2.8 5.0 5.9 5.9 9.8 9.7 9.5 10.4

13.3 14.1

9.8 9.1 11.8

14.4 15.1

11.2 9.3

12.9 15.2

15.8 12.4

10.0 11.4

11.9 9.5 6.7

5.8 5.5 7.9 3.0 4.9 8.8 8.7 13.6

14.4 9.2

12.3 13.2

9.1 12.1

12.9 8.9

11.4 12.2

8.5 11.5

12.2 9.0

8.8 3.6 4.6 6.6 2.4 6.4 3.3 8.6 3.9 5.8 9.7 10.0

5.3 9.5 1.1
-5.4
-7.0
-6.5
-6.0
-2.4
-6.0
-5.5
-5.0

8.0 2.5 -1.8
-3.4
-2.9
-2.4

2.1 -0.9
-2.5
-2.1
-1.5

4.4 -0.6
-2.1
-1.7
-1.2

21.9 1.3 5.3 6.2 -2.5
-4.6
-3.7
-3.1

18.2 -11.0 -28.0 -22.0

19.0 -10.5 -27.5 -21.5

19.5 -10.0 -26.9 -21.0

38.3 -0.3

1.4 0.5 2.8 -0.2

0.3 3.8 3.7 7.7 6.2 7.3 8.2 6.6 7.2 4.4

1.0 3.3 4.2 4.2 8.1 7.3 7.8 8.7 7.1 10.2

10.7 33.4

8.0 5.2

1.9 1.5 3.8 0.8 4.7 4.7 8.6 7.8 8.4 9.2 7.5 8.5 5.7

15.7 27.7 32.3 32.2
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 14 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution spectra - 002 - Cathedral City Storage: Outdoor SP 23 Time
slice
Sum 25Hz 31.5Hz 40Hz 50Hz 63Hz 80Hz 100Hz 125Hz 160Hz 200Hz 250Hz 315Hz 400Hz 500Hz 630Hz 800Hz dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) 1kHz 1.25kHz 1.6kHz 2kHz 2.5kHz 3.15kHz 4kHz 5kHz 6.3kHz dB(A)
8kHz 10kHz 12.5kHz 16kHz 20kHz
dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) dB(A) Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
Leq,d
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 15 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Receiver R1 Fl G Lr,lim dB(A) Leq,d 46.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
-8.4
-8.7
-8.8
-9.0
-8.6
-8.0
-4.9
-8.3
-6.3
-8.6
-8.6
-8.7
-8.8
-9.4
-9.5
-9.6
-9.7
-10.0
-10.2
-10.3
-10.4
-10.5
-10.6
-10.7
-11.0
-10.6
-10.7

4.9 14.2

11.8 0.3

21.9 46.7

0.0 0.0

0.0 Default parking lot noise PLot
Default parking lot noise PLot
Receiver R2 Fl G Lr,lim dB(A) Leq,d 47.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point

5.5 5.3

5.1 5.0

6.2 6.7

6.5 6.4

6.2 0.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

6.0 5.9

5.5 5.3

4.8 4.6

4.5 4.4

4.2 4.1

3.8 3.7

3.6 3.5

3.3 3.3

3.2 0.0

0.0 0.0

0.0 3.1

21.5 20.2

14.5 13.9

23.4 47.6
Default parking lot noise PLot
Default parking lot noise PLot
Receiver R3 Fl G Lr,lim dB(A) Leq,d 48.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

6.5 4.8

4.6 4.6

6.4 6.3

6.2 6.4

6.6 6.6

6.1 5.2

4.7 4.0

3.8 3.6

3.5 3.3

3.2 3.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

2.9 2.7

2.7 2.5

2.4 0.0

0.0 0.0

2.3 2.1

20.7 19.6

15.1 15.3

24.4 48.6
Default parking lot noise PLot
Default parking lot noise PLot
Receiver R4 Fl G Lr,lim dB(A) Leq,d 49.7 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

8.2 6.8

6.5 9.4

9.6 8.7

9.5 9.3

9.2 8.8

8.5 6.5

6.2 5.5

5.3 5.1

4.9 4.8

4.6 4.4

4.3 4.1

4.0 3.8

3.7 3.5

3.4 22.2

20.7 16.2

15.4 0.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 3 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default parking lot noise PLot
Default parking lot noise PLot

25.4 49.6

0.0 0.0
Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

18.0 18.6

18.9 18.4

18.0 17.9

17.0 16.8

16.5 16.2

15.5 15.2

14.9 13.8

13.5 13.3

13.1 12.8

13.2 12.9

12.7 12.5

12.2 12.0

11.8 10.4

10.2 31.1

26.7 16.6

17.6 26.9

49.8 0.0

0.0 0.0

0.0 0.0
Default parking lot noise PLot
Default parking lot noise PLot
Receiver R5 Fl G Lr,lim dB(A) Leq,d 49.9 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point

11.6 11.3

12.1 13.0

12.6 12.3

12.0 0.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 4 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

10.8 10.5

10.2 9.9

9.7 9.4

7.4 7.2

7.0 6.8

6.6 6.4

6.2 6.0

5.8 5.6

5.4 5.3

0.0 0.0

5.1 5.0

24.3 22.7

16.0 16.8

26.6 49.9
Default parking lot noise PLot
Default parking lot noise PLot
Receiver R6 Fl G Lr,lim dB(A) Leq,d 45.3 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

25.8 26.6

27.3 28.0

28.4 28.7

28.6 28.3

27.6 27.0

26.3 25.5

24.6 21.6

20.9 20.4

19.9 19.4

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 5 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

18.6 18.1

17.6 17.2

17.0 16.5

16.3 15.9

15.4 39.7

25.7 14.0

20.5 22.3

42.0 0.0

0.0 0.0

0.0 0.0
Default parking lot noise PLot
Default parking lot noise PLot
Receiver R7 Fl G Lr,lim dB(A) Leq,d 42.6 dB(A) Sigma(Leq,d) 0.0 dB(A) Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Default industrial noise
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

14.9 15.2

15.4 16.2

16.5 16.7

17.2 17.7

18.2 19.0

19.5 20.2

20.7 23.4

24.2 24.9

25.6 26.3

27.1 27.7

28.2 28.5

28.6 28.3

27.9 27.2

26.6 38.3

19.7 0.0

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 6 SoundPLAN 9.0
Cathedral City Storage Noise
Contribution level - 002 - Cathedral City Storage: Outdoor SP 9 Source group Source typTer. lane Leq,d
dB(A)
A
dB
Default industrial noise
Default industrial noise
Default parking lot noise PLot
Default parking lot noise PLot
Point
Point

16.8 25.4

21.0 34.7

0.0 0.0

0.0 0.0
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 7 SoundPLAN 9.0
Cathedral City Storage Noise
Octave spectra of the sources in dB(A) - 002 - Cathedral City Storage: Outdoor SP 3 Name Source type l or A
m,m²
Li R'w L'w Lw KI KT LwMax DO-Wall Time histogram Emission spectrum 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz dB(A) dB dB(A) dB(A) dB dB dB(A)

54.8 95.8 0.0 0.0
dB
0 dB(A)

79.2 dB(A)

90.8 dB(A)

83.3 dB(A)

87.8 dB(A)

87.9 dB(A)

88.3 dB(A)

85.6 dB(A)

79.4 dB(A)
PLot 66.6
PLot
12641.06
1682.55
100%/24h
100%/24h
Typical spectrum
Auto Parking Typical spectrum
HVAC

51.7 84.0 0.0 0.0 0 67.3 78.9 71.4 75.9 76.0 76.4 73.7 67.5 54.7 HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

74.9 74.9 0.0 0.0

62.8 62.8 0.0 0.0

62.8 62.8 0.0 0.0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h

52.0 52.0

52.0 46.8

46.8 46.8

46.8 60.5

60.5 60.5

48.3 48.3

62.9 62.9

62.9 51.8

51.8 51.8

51.8 67.2

67.2 67.2

55.5 55.5

69.5 69.5

69.5 56.4

56.4 56.4

56.4 69.1

69.1 69.1

57.6 57.6

66.1 66.1

66.1 54.0

54.0 54.0

54.0 61.2

61.2 61.2

45.9 45.9

48.9 48.9

48.9 39.5

39.5 39.5

39.5 HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
HVAC: 67.7dB @ 3ft -
Carrier 50TFQ0006 - HVAC
Drive-Thru - Idiling Car @
6ft Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 1 SoundPLAN 9.0
Cathedral City Storage Noise
Octave spectra of the sources in dB(A) - 002 - Cathedral City Storage: Outdoor SP 3 Name Source type l or A Li R'w L'w Lw KI KT LwMax DO-Wall Time histogram Emission spectrum 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz m,m² dB(A) dB dB(A) dB(A) dB dB dB(A)

62.8 62.8 0.0 0.0
dB
0 dB(A)

46.8 dB(A)

48.3 dB(A)

51.8 dB(A)

55.5 dB(A)

56.4 dB(A)

57.6 dB(A)

54.0 dB(A)

45.9 dB(A)

39.5 Drive-Thru - Idiling Car @
6ft Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Idiling Cars
Point 100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
100%/24h
Drive-Thru - Idiling Car @
6ft Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point
Point

62.8 62.8 0.0 0.0

80.0 80.0 0.0 0.0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 46.8

46.8 46.8

46.8 47.0

48.3 48.3

57.0 51.8

51.8 51.8

51.8 64.1

55.5 55.5

70.1 56.4

56.4 56.4

56.4 73.0

57.6 57.6

74.0 54.0

54.0 54.0

54.0 74.1

45.9 45.9

72.0 39.5

39.5 39.5

39.5 Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Drive-Thru - Idiling Car @
6ft
Truck: loading general
cargo
Truck: loading general cargo Point
MD Acoustics 1197 E Los Angeles Ave,Unit C 256 Simi Valley, CA 93065 USA 2 SoundPLAN 9.0
Appendix C:

FHWA Roadway Noise Modeling Worksheets
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL
PROJECT:

ROADWAY:

LOCATION:

Date Palm Rosemount
Date Palm Dr
Date Palm Existing
JOB #:

DATE:

ENGINEER: R. Pearson
0741-22-31
28-Dec-23

NOISE INPUT DATA

ROADWAY CONDITIONS RECEIVER INPUT DATA
ADT =
SPEED =
PK HR % =
21,246
55 RECEIVER DISTANCE =
DIST C/L TO WALL =
RECEIVER HEIGHT =
50 80
10 5.0

NEAR LANE/FAR LANE DIST
ROAD ELEVATION =
GRADE =
0 0.0

1.0 %
WALL DISTANCE FROM RECEIVER =
PAD ELEVATION =
(30)

0.5 -90
90 ROADWAY VIEW: LF ANGLE=
RT ANGLE=
DF ANGLE=
PK HR VOL = 2,125
180

SITE CONDITIONS WALL INFORMATION
AUTOMOBILES =
MEDIUM TRUCKS =
HEAVY TRUCKS =
15 15
15 HTH WALL=
(10 = HARD SITE, 15 = SOFT SITE) AMBIENT=
BARRIER =

0.0 0.0
0 (0 = WALL, 1 = BERM)
VEHICLE MIX DATA MISC. VEHICLE INFO

VEHICLE TYPE DAY EVENING HEIGHT SLE DISTANCE GRADE ADJUSTMENT

0.129

0.049
NIGHT

0.096

0.103

0.108
DAILY

0.9742

0.0184

0.0074

VEHICLE TYPE

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

0.775

0.848

0.865

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

2.0 4.0

8.0 50.12

50.02 50.06
- -
- -

0.027 0.00

NOISE OUTPUT DATA

NOISE IMPACTS (WITHOUT TOPO OR BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

71.4 61.0

61.0 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

71.9 61.8

61.8 70.0

60.3 60.3

68.2 53.9

51.3 62.1

52.3 52.6

70.8 60.8

60.9 NOISE LEVELS (dBA) 72.6 70.8 68.4 63.0 71.6 72.1

NOISE IMPACTS (WITH TOPO AND BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

71.4 61.0

61.0 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

71.9 61.8

61.8 70.0

60.3 60.3

68.2 53.9

51.3 62.1

52.3 52.6

70.8 60.8

60.9 NOISE LEVELS (dBA) 72.6 70.8 68.4 63.0 71.6 72.1

NOISE CONTOUR (FT)

NOISE LEVELS
CNEL
LDN
70 dBA
69 65 dBA
149
137
60 dBA
321
295
55 dBA
691
64 636
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL
PROJECT:

ROADWAY:

LOCATION:

Date Palm Rosemount
Date Palm Dr
Date Palm Alternative 1
JOB #:

DATE:

ENGINEER: R. Pearson
0741-22-31
28-Dec-23

NOISE INPUT DATA

ROADWAY CONDITIONS RECEIVER INPUT DATA
ADT =
SPEED =
PK HR % =
24,903
55 RECEIVER DISTANCE =
DIST C/L TO WALL =
RECEIVER HEIGHT =
50 80
10 5.0

NEAR LANE/FAR LANE DIST
ROAD ELEVATION =
GRADE =
0 0.0

1.0 %
WALL DISTANCE FROM RECEIVER =
PAD ELEVATION =
(30)

0.5 -90
90 ROADWAY VIEW: LF ANGLE=
RT ANGLE=
DF ANGLE=
PK HR VOL = 2,490
180

SITE CONDITIONS WALL INFORMATION
AUTOMOBILES =
MEDIUM TRUCKS =
HEAVY TRUCKS =
15 15
15 HTH WALL=
(10 = HARD SITE, 15 = SOFT SITE) AMBIENT=
BARRIER =

0.0 0.0
0 (0 = WALL, 1 = BERM)
VEHICLE MIX DATA MISC. VEHICLE INFO

VEHICLE TYPE DAY EVENING HEIGHT SLE DISTANCE GRADE ADJUSTMENT

0.129

0.049
NIGHT

0.096

0.103

0.108
DAILY

0.9742

0.0184

0.0074

VEHICLE TYPE

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

0.775

0.848

0.865

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

2.0 4.0

8.0 50.12

50.02 50.06
- -
- -

0.027 0.00

NOISE OUTPUT DATA

NOISE IMPACTS (WITHOUT TOPO OR BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

72.1 61.7

61.7 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

72.5 62.4

62.4 70.6

60.9 61.0

68.9 54.6

52.0 62.8

53.0 53.2

71.4 61.5

61.6 NOISE LEVELS (dBA) 73.3 71.5 69.1 63.7 72.3 72.8

NOISE IMPACTS (WITH TOPO AND BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

72.1 61.7

61.7 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

72.5 62.4

62.4 70.6

60.9 61.0

68.9 54.6

52.0 62.8

53.0 53.2

71.4 61.5

61.6 NOISE LEVELS (dBA) 73.3 71.5 69.1 63.7 72.3 72.8

NOISE CONTOUR (FT)

NOISE LEVELS
CNEL
LDN
70 dBA
77 65 dBA
165
152
60 dBA
356
328
55 dBA
768
71 707
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL
PROJECT:

ROADWAY:

LOCATION:

Date Palm Rosemount
Date Palm Dr
Date Palm Alternative 2
JOB #:

DATE:

ENGINEER: R. Pearson
0741-22-31
28-Dec-23

NOISE INPUT DATA

ROADWAY CONDITIONS RECEIVER INPUT DATA
ADT =
SPEED =
PK HR % =
24,522
55 RECEIVER DISTANCE =
DIST C/L TO WALL =
RECEIVER HEIGHT =
50 80
10 5.0

NEAR LANE/FAR LANE DIST
ROAD ELEVATION =
GRADE =
0 0.0

1.0 %
WALL DISTANCE FROM RECEIVER =
PAD ELEVATION =
(30)

0.5 -90
90 ROADWAY VIEW: LF ANGLE=
RT ANGLE=
DF ANGLE=
PK HR VOL = 2,452
180

SITE CONDITIONS WALL INFORMATION
AUTOMOBILES =
MEDIUM TRUCKS =
HEAVY TRUCKS =
15 15
15 HTH WALL=
(10 = HARD SITE, 15 = SOFT SITE) AMBIENT=
BARRIER =

0.0 0.0
0 (0 = WALL, 1 = BERM)
VEHICLE MIX DATA MISC. VEHICLE INFO

VEHICLE TYPE DAY EVENING HEIGHT SLE DISTANCE GRADE ADJUSTMENT

0.129

0.049
NIGHT

0.096

0.103

0.108
DAILY

0.9742

0.0184

0.0074

VEHICLE TYPE

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

0.775

0.848

0.865

AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

2.0 4.0

8.0 50.12

50.02 50.06
- -
- -

0.027 0.00

NOISE OUTPUT DATA

NOISE IMPACTS (WITHOUT TOPO OR BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

72.0 61.7

61.7 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

72.5 62.4

62.4 70.6

60.9 61.0

68.8 54.5

51.9 62.8

53.0 53.2

71.4 61.4

61.5 NOISE LEVELS (dBA) 73.3 71.4 69.1 63.6 72.2 72.7

NOISE IMPACTS (WITH TOPO AND BARRIER SHIELDING)

VEHICLE TYPE PK HR LEQ DAY LEQ EVEN LEQ NIGHT LEQ LDN CNEL

72.0 61.7

61.7 AUTOMOBILES

MEDIUM TRUCKS

HEAVY TRUCKS

72.5 62.4

62.4 70.6

60.9 61.0

68.8 54.5

51.9 62.8

53.0 53.2

71.4 61.4

61.5 NOISE LEVELS (dBA) 73.3 71.4 69.1 63.6 72.2 72.7

NOISE CONTOUR (FT)

NOISE LEVELS
CNEL
LDN
70 dBA
76 65 dBA
164
151
60 dBA
353
325
55 dBA
760
70 700
Appendix D:

Construction Noise Modeling Output
Receptor - Residences to the East
Construction Phase Equipment
Item
Item Lmax at 50 Edge of Site to Center of Site to Item Usage Percent1
Receptor Item
Lmax, dBA
Recptor. Item
Leq, dBA
Ground Factor2 # of Items Usage Factor feet, dBA1 Receptor, feet Receptor, feet

SITE PREP
Tractor
Dozer
4 3
84 82
80 80
178
178
40 40

0.66 0.66

0.40 0.40

78.6 76.6

65.4 63.4
Log Sum 78.6 73.1
GRADE
Excavator
Grader
Dozer
1 1
1 3
81 85
82 84
80 80
178
178
178
400
40 40
40 40

0.66 0.66

0.40 0.40

75.6 79.6

76.6 71.3

62.4 66.4

63.4 56.0
80 Tractor 150

79.6 69.7
BUILD
Crane 1
3 1
3 1
81 75
81 84
74 80
80 80
80 80
178
178
178
178
178
16 20
50 40
40 0.66

0.66 0.66

0.16 0.20

0.50 0.40

0.40 75.6

69.6 75.6

78.6 68.6

78.6 58.4

53.3 63.3

65.4 55.4

71.5 Man lift
Generator
Tractor
Welder/Torch
PAVE
Paver 2
2 2
77 83
80 80
80 80
178
178
178
50 20
20 0.66

0.66 0.66

0.50 0.20

0.20 71.6

77.6 74.6

59.3 61.3

58.3 Compactor (ground)
Roller

77.6 67.6

ARCH COAT
Compressor (air) 1 78 80 178 40 0.66 0.40 72.6

72.6 59.4

59.4 1FHWA Construction Noise Handbook: Table 9.1 RCNM Default Noise Emission Reference Levels and Usage Factors Appendix E:

Construction Vibration Modeling Output

VIBRATION LEVEL IMPACT
Project:

Source:

Date Palm Rosemount
Large Bulldozer
Date: 4/14/23
Scenario:

Location:

Address:

Unmitigated
Adjacent residences
Date Palm and Rosemount
PPV = PPVref(25/D)^n (in/sec)

DATA INPUT
Equipment = INPUT SECTION IN BLUE 2 Large Bulldozer
Type
PPVref =
D =

0.089

50.00 1.10
Reference PPV (in/sec) at 25 ft.

Distance from Equipment to Receiver (ft)
n = Vibration attenuation rate through the ground
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.

DATA OUT RESULTS
PPV = 0.042 IN/SEC OUTPUT IN RED
Appendix E
Soils Report
Custom Soil Resource
Report for
Riverside County,
Coachella Valley Area,
California
United States
Department of
Agriculture
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
Natural
Resources
Conservation
Service participants
July 10, 2023
Preface
Soil surveys contain information that affects land use planning in survey areas.

They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers.

Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment.

Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions.

The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations.

Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_053951).

Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations.

The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey.

Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information.

The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer.
3 Contents
Preface.................................................................................................................... 2 How Soil Surveys Are Made..................................................................................5 Soil Map.................................................................................................................. 8 Soil Map................................................................................................................9 Legend................................................................................................................10 Map Unit Legend................................................................................................ 12 Map Unit Descriptions........................................................................................ 12 Riverside County, Coachella Valley Area, California.......................................14 MaB—Myoma fine sand, 0 to 5 percent slopes...........................................14 References............................................................................................................16 4 How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity.

Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA.

The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape.

Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries.

Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units).

Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research.

The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas.

Soil scientists make many field observations in the process of producing a soil map.

The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded.

These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape.

Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties.

While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management.

Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil.

Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date.

After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 7 Soil Map
The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Custom Soil Resource Report
Soil Map
550010 550090 550170 550250 550330 550410 550490
33° 49' 46'' N 33° 49' 46'' N
Soil Map may not be valid at this scale.
33° 49' 24'' N 33° 49' 24'' N
550010 550090 550170 550250 550330 550410 550490
Map Scale: 1:3,380 if printed on A portrait (8.5" x 11") sheet.

Meters
N 0 300
0 50
150
100
300
200
Feet
600 900
Map projection: Web Mercator Cornercoordinates:WGS84 Edge tics: UTM Zone 11N WGS84 9 Custom Soil Resource Report

MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Spoil Area The soil surveys that comprise your AOI were mapped at 1:24,000.

Stony Spot
Soils Very Stony Spot
Wet Spot
Warning: Soil Map may not be valid at this scale. Soil Map Unit Polygons Soil Map Unit Lines
Soil Map Unit Points
Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale.

Other
Special Line Features
Special Point Features
Water Features
Streams and Canals
Blowout
Borrow Pit
Transportation Please rely on the bar scale on each map sheet for map measurements. Clay Spot Rails
Closed Depression
Gravel Pit
Interstate Highways
US Routes
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:

Gravelly Spot Coordinate System: Web Mercator (EPSG:3857) Landfill
Major Roads
Local Roads Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required.

Lava Flow Background
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Aerial Photography
This product is generated from the USDA-NRCS certified data as of the version date(s) listed below.

Soil Survey Area: Riverside County, Coachella Valley Area, California
Survey Area Data: Version 14, Sep 1, 2022
Sandy Spot
Soil map units are labeled (as space allows) for map scales 1:50,000 or larger.

Severely Eroded Spot
Sinkhole
Date(s) aerial images were photographed: Mar 15, 2022—May 28, 2022
Slide or Slip
Sodic Spot
The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background 10 Custom Soil Resource Report

MAP LEGEND MAP INFORMATION
imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident.
11 Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI MaB Myoma fine sand, 0 to 5
percent slopes

20.2 100.0%
Totals for Area of Interest 20.2 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit.

A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class.

Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils.

Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape.

The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas.
12 Custom Soil Resource Report
An identifying symbol precedes the map unit name in the map unit descriptions.

Each description includes general facts about the unit and gives important soil properties and qualities.

Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement.

Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.

Some map units are made up of two or more major soils or miscellaneous areas.

These map units are complexes, associations, or undifferentiated groups.

A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps.

The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.

An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.

An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.

Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 13 Custom Soil Resource Report
Riverside County, Coachella Valley Area, California
MaB—Myoma fine sand, 0 to 5 percent slopes
Map Unit Setting
National map unit symbol: hkw3
Elevation: -200 to 1,800 feet
Mean annual precipitation: 2 to 4 inches
Mean annual air temperature: 72 to 75 degrees F
Frost-free period: 270 to 320 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Myoma and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.

Description of Myoma
Setting
Landform: Alluvial fans
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Wind blown sandy alluvium
Typical profile
H1 - 0 to 18 inches: fine sand
H2 - 18 to 60 inches: sand
Properties and qualities
Slope: 0 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Somewhat excessively drained
Runoff class: Negligible
Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.8 inches) Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (nonirrigated): 7e
Hydrologic Soil Group: A
Ecological site: R040XD007CA - Lacustrine Basin and Large RIver Floodplain Hydric soil rating: No
Minor Components
Coachella
Percent of map unit: 4 percent
14 Custom Soil Resource Report
Hydric soil rating: No
Carsitas
Percent of map unit: 4 percent
Hydric soil rating: No
Unnamed, noncalcareous soils
Percent of map unit: 4 percent
Hydric soil rating: No
Riverwash
Percent of map unit: 3 percent
Landform: Channels
Hydric soil rating: Yes
15 References
American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition.

American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00.

Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31.

Federal Register. July 13, 1994. Changes in hydric soils of the United States.

Federal Register. September 18, 2002. Hydric soils of the United States.

Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States.

National Research Council. 1995. Wetlands: Characteristics and boundaries.

Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.

U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section.

United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1.

United States Department of Agriculture, Natural Resources Conservation Service.

National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.

National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 16 Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.

National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242
United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf 17 Appendix F
Traffic Analysis
Date Palm Drive Mixed Use
Transportation Analysis
Prepared for:
44-600 Village Court, Suite 100
Palm Desert CA, 92260
Prepared by:
23905 Clinton Keith Road 114-280
Wildomar, CA 92595
December 2023
Date Palm Drive Mixed Use
Transportation Analysis
Prepared for:
44-600 Village Court, Suite 100
Palm Desert CA, 92260
Prepared by:
23905 Clinton Keith Road 114-280
Wildomar, CA 92595
June 2024
Date Palm Drive Mixed Use TA Executive Summary

EXECUTIVE SUMMARY
Purpose of the Report
The purpose of this transportation analysis (TA) report is to identify and document potential traffic deficiencies related to the proposed Date Palm Drive Mixed Use project (Project) in Cathedral City.

The technical report will be prepared in accordance with the County of Riverside Transportation Analysis Guidelines for Level of Service (LOS) and Vehicle Miles Traveled (VMT), December 2020 (Guidelines). This technical report will also recommend transportation improvements to address potential Project deficiencies at local and regional transportation facilities.

Project Overview
The Project will be developed on a vacant site located on the southeast corner of Date Palm Drive and Rosemount Road. The project is proposing the construction of the following two land use scenarios, each in two phases:

Scenario 1
• Phase 1:
o 115,054 sf of mini warehouse (self-storage facility including office space) • Phase 2:
o
o
11,159 sf of strip retail plaza
7,030 sf of fast-food restaurant with drive-through window Scenario 2
• Phase 1:
o
Phase 2:
o
115,054 sf of mini warehouse (self-storage facility including office space) •
54,725 sf of shopping plaza (including 50,000 sf of supermarket and 4,725 sf of retail) Under existing conditions, Rosemount Road does not extend to Date Palm Drive. The Project will be conditioned to construct half-width roadway improvement along the property frontage on Rosemount Road including curb, gutter, sidewalk and paving. Therefore, this report will take into consideration the following in addressing the proposed Project phases:
• Phase 1 – Rosemount Road extension not constructed prior to opening year 2025. Access would be limited to one proposed driveway along Date Palm Drive and one existing driveway along McCallum Way.
• Phase 2 - Rosemount Road extension is in place prior to opening year 2027. Access to the project site will be provided via one proposed driveway along Date Palm Drive, one proposed driveway along Rosemount Road that is aligned with the main access point to the Wren Residential development located at the northeast corner of Date Palm Drive and Rosemount Road, and one existing driveway along McCallum Way. Additionally, the Project will construct a traffic signal at the new intersection of Rosemount Road and Date Palm Drive.

The Project trip generation was calculated using the ITE Trip Generation Manual (11th Edition). It is estimated that Scenario 1 will generate 1,696 total daily trips, 192 AM peak hour trips and 137 PM peak hour trips and Scenario 2 will generate 3,542 total daily trips, 203 AM peak hour trips and 340 i
Date Palm Drive Mixed Use TA Executive Summary
PM peak hour trips which represents the worst-case scenario. However, since Scenario 1 would result in 13 additional outbound AM peak hour trips, Scenario 2 will still be the governing scenario for analysis and only the intersection AM peak hour will be analyzed for Scenario 1 as supplemental analysis. Please refer to the trip generation tables in Chapter 1 of this report.

Project trip distribution and assignment were developed, in coordination with the Cathedral City staff, based on the land use characteristics of the proposed project and surrounding area, existing travel patterns within the study area, anticipated travel patterns to and from the project site, and approved projects located in the vicinity of the project site. Analysis scenarios and study area were then established in coordination with City staff to determine the potential project deficiencies on the transportation network. Refer to Appendix A for approved scoping agreement.

Analysis Scenarios:
•
•
•
•
Existing Conditions Year 2023
Project Completion Year 2025 (Existing Plus Ambient Plus Project Phase 1) Project Completion Year 2027 (Existing Plus Ambient Plus Project Phases 1 & 2) Cumulative Year 2027 (Existing Plus Ambient Plus Cumulative Plus Project) Study Area Intersections:

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road (Phase 2 only)

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Project Driveway and McCallum Way
Study Roadway Segments:

1. Date Palm Drive, McCallum Way to Project Driveway

2. Date Palm Drive, Project Driveway to Rosemount Road

3. Date Palm Drive, Rosemount Road to 30th Avenue

4. Date Palm Drive, 30th Avenue to Tachevah Drive
Analysis Results and Recommendations
Scenario 2
Existing Year 2023
All study area intersections operate at an acceptable level of service (LOS) under Existing Year 2023 Conditions. All roadway segments have capacity at an acceptable LOS under Existing Year 2023 Conditions. Therefore, no improvements are required by this project.

Project Completion Year 2025
All study area intersections operate at an acceptable LOS under Project Completion Year 2025 Conditions. All roadway segments have capacity at an acceptable LOS under Project Completion Year 2025 Conditions. Therefore, no improvements are required by this project. ii
Date Palm Drive Mixed Use
Vehicle Miles Traveled
Screening Assessment
Prepared for:

The Altum Group
44-600 Village Court Ste 100
Palm Desert, CA 92260
Prepared by:
23905 Clinton Keith 114-280
Wildomar, CA 92595
June 2024
Date Palm Drive Mixed Use

1.0 PROJECT INTRODUCTION
The purpose of this report is to evaluate the project’s Vehicle Miles Traveled (VMT) analysis requirements and compliance with Senate Bill 743 (SB 743) and the California Environmental Quality Act (CEQA).

1.1 PROJECT DESCRIPTION
The project will be developed on a vacant site located on the southeast corner of Date Palm Drive and Rosemount Road in Cathedral City. The project is proposing the construction of the following two land use scenarios, each in two phases:

Scenario 1
 Phase 1:
o 115,054 sf of mini warehouse (self-storage facility including office space)  Phase 2:
o
o
11,159 sf of strip retail plaza
7,030 sf of fast-food restaurant with drive-through window Scenario 2
 Phase 1:
o
Phase 2:
o
115,054 sf of mini warehouse (self-storage facility including office space) 
54,725 sf of shopping plaza (including 50,000 sf of supermarket and 4,725 sf of retail) Additionally, Rosemount Road does not currently extend to Date Palm Drive. It is anticipated that the appropriate dedications and easements will be in place prior to project opening. Therefore, this report will address the following access scenarios:
 Alternative 1: Rosemount Road extension in place prior to opening year. Access to the project site will be provided via two driveways along Date Palm Drive and one driveway along Rosemount Road.
 Alternative 2: Rosemount Road extension not constructed prior to opening year. Access would be limited to two driveways along Date Palm Drive.

Figures 1-1 and 1-2 show Scenario 1 and 2 site plans, respectively.

1.2 SENATE BILL 743
On September 27, 2013, SB 743 was signed into State law and started a process intended to fundamentally change transportation impact analysis as part of the CEQA compliance. The California Natural Resource Agency updated the CEQA transportation analysis guidelines in 2018. In this update automobile delay and LOS metrics are no longer to be used in determining transportation impacts.

Instead VMT metrics will serve as the basis in determining impacts. Furthermore, the guidelines stated that after July 1, 2020, transportation analysis under CEQA must use VMT to determine impacts for land use projects.

Date Palm Drive Mixed Use

1.3 GUIDANCE DOCUMENTS
The project is within Cathedral City and the County of Riverside. The City has not adopted guidance on evaluating VMT for transportation impacts under CEQA. Therefore, the County of Riverside Transportation Analysis Guidelines for Level of Service (LOS) and Vehicle Miles Traveled (VMT), December 2020, hereafter referred to as Guidelines, will be used for this analysis.

NOT A PART

NOT A PART
Date Palm Drive Mixed Use
Project Site Plan (Scenario 1)
Figure 1-1

NOT A PART

NOT A PART
Date Palm Drive Mixed Use
Project Site Plan (Scenario 2)
Figure 1-2
Date Palm Drive Mixed Use

2.0 ANALYSIS METHODOLGY
The Guidelines outline 5 major-steps1 for CEQA assessment and VMT analysis:





Evaluation of land use type
Screening criteria under which projects are not required to submit a detailed VMT analysis Significance thresholds
VMT analysis methodologies
Mitigation measures for significant and unavoidable impacts

2.1 SCREENING CRITERIA
The Guidelines recognize that certain projects based on type, location, size and other contexts could lead to a presumption of less than significance (i.e. the project’s VMT would not cause a transportation impact under CEQA) and would not need additional VMT analysis. The Guidelines provide the following screening criteria2:

1. Small Projects –
a. Single Family Housing projects less than or equal to 110 Dwelling Units; or b. Multi Family (low rise) Housing projects less than or equal to 147 Dwelling Units; or c. Multi Family (mid-rise) Housing projects less than or equal to 194 Dwelling Units; or d. General Office Building with area less than or equal to 165,000 SF; or e. Retail buildings with area less than or equal to 60,000 SF; or f. Warehouse (unrefrigerated) buildings with area less than or equal to 208,000 SF; or g. General Light Industrial buildings with area less than or equal to 179,000 SF Project GHG emissions less than 3,000 Metric Tons of Carbon Dioxide Equivalent (MTCO2e) as determined by a methodology acceptable to the Transportation Department; or h. Unless specified above, project trip generation is less than 110 trips per day per the ITE Manual or other acceptable source determined by Riverside County.

2. Projects near high quality transit – The project is located within half mile of an existing major transit stop and maintains a service interval frequency of 15 minutes or less during the morning and afternoon peak commute periods.

3. Local-serving retail – No single store on-site exceeds 50,000 SF and project is local-serving as determined by the Transportation Department

4. Affordable Housing – A high percentage of affordable housing is provided as determined by the Riverside County Planning and Transportation Departments.

5. Local Essential Services –
a. Project is local-serving as determined by the Transportation Department; and b. Local-serving and Day care center; or
c. Police or Fire facility; or
d. Medical/Dental office building under 50,000 square feet; or e. Government offices (in-person services such as post office, library, and utilities); or f. Local or Community Parks

6. Map-based Screening – Area of development is under threshold as shown on screening map as allowed by the Transportation Department

7. Redevelopment projects – Project replaces an existing VMT-generating land use and does not result in a net overall increase in VMT.
1 Guidelines, Pages 18-24
2 Guidelines, Figure 3, pages 19-21
5 Date Palm Drive Mixed Use

2.2 VMT THRESHOLDS
A land use project should determine the appropriate VMT measure and threshold of significance to apply. The thresholds3 as defined by the Guidelines are as follows:






Residential Projects: Existing county-wide average 15.2 VMT per capita Office: Existing county-wide average 14.2 VMT per employee Retail: No net increase in total regional VMT
Other Employment: Existing county-wide average 14.2 VMT per employee Other Customer: No net increase in total regional VMT
Mixed-Use Projects: Respective VMT threshold for its multiple distinct land uses

2.3 VMT ASSESSMENT
Projects that do not meet any of the screening criteria identified would need to assess its project VMT using one of the following methods per the Guidelines:


Riverside County Sketch Planning Tool; or
RIVTAM/RIVCOM or other approved travel demand forecasting model.

3.0 PROJECT ANALYSIS
The Project proposes the construction of the following two land use scenarios, each in two phases:

3.1 SCREENING CRITERIA ASSESSMENT

1. Small Project
Project Phase 1 proposes 115,054 SF of mini warehouse. This land use component is a warehouse building with area less than or equal to 208,000 SF. Therefore, the mini warehouse component of the Project would be presumed to cause a less than significant impact based on this criterion.

2. Projects Near High Quality Transit
3 Guidelines, Figure 6, page 22
6 Date Palm Drive Mixed Use
The Project is not located within half mile of an existing major transit stop and it’s the nearest transit stop does not maintain a service interval frequency of 15 minutes or less during the morning and afternoon peak commute periods. Therefore, the Project does not qualify for this criterion.

3. Local-serving Retail
Scenario 1 Phase 2 proposes 11,159 SF of strip retail plaza and 7,030 SF of fast-food restaurant with drive-through. Additionally, Scenario 2 Phase 2 proposes 50,000 SF of supermarket and 4,725 SF of retail. Each of these single retail uses in Scenarios 1 and 2 do not exceed 50,000 SF and are local-serving. Therefore, the retail plaza, fast-food restaurant, and supermarket components of the Project would be presumed to cause a less than significant impact based on this criterion.

4. Affordable Housing
Scenarios 1 & 2 are not affordable housing projects and therefore do not qualify for this criterion.

5. Local Essential Service
The Project proposes mini warehouse, strip retail, shopping plaza, and fast-food restaurant land uses. Scenarios 1 and 2 do not include local essential service land use components and therefore, do not qualify for this criterion.

6. Map-Based Screening
The Project proposes mini warehouse, strip retail, shopping plaza, and fast-food restaurant land uses. Scenarios 1 and 2 do not include residential and office land use components and therefore, do not qualify for this criterion.

7. Redevelopment Project
The Project is proposed on a vacant lot and does not replace an existing VMT-generating land use. Therefore, the Project does not qualify for this criterion.

3.2 CONCLUSION
As concluded in Section 3.1 of this report, the proposed project screens out from VMT analysis since the mini warehouse component satisfies the Small Project screening criterion, and the strip retail plaza, shopping plaza, and fast-food restaurant components meet the Local-serving retail screening criterion. Therefore, Scenario 1 and 2 land use components are presumed to cause less than significant VMT impacts. It is our recommendation that the project be approved with no additional project-level VMT analysis.
7 Date Palm Drive Mixed Use TA Executive Summary
Project Completion Year 2027
All study area intersections operate at an acceptable LOS under Project Completion Year 2027 Conditions except for the following:
•
Date Palm Drive and Tachevah Drive - Install a traffic signal All roadway segments have capacity at an acceptable LOS under Project Completion Year 2027 Conditions.

Cumulative Year 2027 Scenario
All study area intersections operate at an acceptable LOS under Cumulative Year 2027 Conditions except for the following:
• Date Palm Drive and Tachevah Drive - Install a traffic signal All roadway segments have capacity at an acceptable LOS under Cumulative Year 2027 Conditions.

Scenario 1 - AM Peak Hour
All study area intersections would operate at an acceptable LOS under Project (Scenario 1) Completion Year 2027 and Cumulative Year 2027 (Scenario 1) AM Peak Hour Conditions except for the following:
• Date Palm Drive and Tachevah Drive – the addition of the project trips at this location would result in a delay lower than Scenario 2. Therefore, no additional improvements are recommended at this location when compared to Scenario 2.

Recommended Improvements
The proposed traffic signal at the new intersection of Date Palm Drive and Rosemount Road will be constructed by whichever project completes their final phase first between Date Palm Drive Mixed Use, the Wren Project, and the Vallarta Shopping Center. However, all three projects will contribute to the funding of this project based on their portion of total ADT generated. It should be noted that through the course of the subject project entitlement process, it has been determined that the potential supermarket discussed under scenario 2 will no longer be constructed on the subject property phase 2 parcel but instead the supermarket will be built on the Vallarta Shopping Center site at the southwest corner of Date Plam and Rosemount Road intersection; therefore, the Project fair share contribution of 16.29% toward the signalization of Date Plam Drive and Rosemount Road intersection is calculated based on the project scenario 1 land use intensity, as shown in Table ES-1.

Table ES-1
Project Feature Contributions
Project ADT
(Scenario 1)
Project ADT
(Scenario 2)
Project Share %
(Scenario 1)
Project Share %
(Scenario2) Project
Date Palm Drive Mixed Use
Wren Project
1,668
1,375
7,199
10,242
3,542
1,375
7,199
12,116

16.29%

13.43%

70.29%
100%

29.23%

11.35%

59.42%
100%
Vallarta Shopping Center
Total
iii
Date Palm Drive Mixed Use TA Executive Summary
Project fair share costs of improvements necessary to mitigate deficient conditions have been calculated and are shown in Table ES-2 below. Fair share cost is determined based on the following equation, which is the ratio of Project traffic to new traffic. New traffic is total future traffic less existing baseline traffic:

Project Fair Share % = Project Traffic / (Cumulative Year 2027 Traffic – Existing Baseline Traffic) Table ES-2
Project Fair Share Contributions
Cumulative Existing
Baseline Traffic
Project
Traffic
Project Fair
Share % # Intersection Year 2027
Traffic
Funding Mechanism
Date Palm Drive and Tachevah Drive
Project fair share
towards
intersection signalization
AM
PM
1,927
1,999
41 68
2,527
2,784

6.8%

8.7%
5 As shown in the above table, Project fair share contribution toward the future signalization of the Date Palm Drive and Tachevah Drive intersection is 8.7%.

VMT Screening Assessment
The proposed project screens out from VMT analysis since the mini warehouse component satisfies the Small Project screening criterion, and the strip retail plaza, shopping plaza and fast-food restaurant components meet the Local-serving retail screening criterion. Therefore, all Scenario 1 and 2 land use components are presumed to cause less than significant VMT impacts. It is our recommendation that the project be approved with no additional project-level VMT analysis. iv
Date Palm Drive Mixed Use TA Table of Content
Table of Contents
EXECUTIVE SUMMARY...............................................................................................................................................I Purpose of the Report.....................................................................................................................................i Project Overview.............................................................................................................................................i Analysis Results and Recommendations........................................................................................................ii

1.0 PROJECT INTRODUCTION .............................................................................................................................. 1 PROJECT DESCRIPTION .............................................................................................................................................1 STUDY AREA ..........................................................................................................................................................1 PROJECT TRIP GENERATION.......................................................................................................................................2 PROJECT TRIP DISTRIBUTION AND ASSIGNMENT.............................................................................................................4 PROJECT ACCESS .....................................................................................................................................................4 PARKING ...............................................................................................................................................................4

2.0 METHODOLOGIES ....................................................................................................................................... 1 ANALYSIS SCENARIOS ...............................................................................................................................................1 STUDY TIME PERIODS...............................................................................................................................................1 ANALYSIS METHODOLOGIES ......................................................................................................................................1 Intersection Capacity Analysis .......................................................................................................................2 Signalized Intersections..........................................................................................................................................2 Side-Street Stop-controlled (SSSC) Intersections ...................................................................................................3 Traffic Signal Warrant Analysis .....................................................................................................................4 City of Cathedral City Comprehensive General Plan Compliance ..................................................................4

3.0 EXISTING YEAR 2023 .................................................................................................................................. 5 ROADWAY NETWORK...............................................................................................................................................5 TRANSIT SYSTEM.....................................................................................................................................................5 ACTIVE TRANSPORTATION SYSTEM ..............................................................................................................................5 TRAFFIC VOLUMES ..................................................................................................................................................5 ANALYSIS RESULTS ..................................................................................................................................................5

4.0 PROJECT COMPLETION YEAR 2025 CONDITIONS................................................................................................10 ANALYSIS RESULTS ................................................................................................................................................10

5.0 PROJECT COMPLETION YEAR 2027 CONDITIONS................................................................................................13 ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS .............................................................................................13

6.0 CUMULATIVE YEAR 2027 CONDITIONS............................................................................................................17 ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS .............................................................................................19

7.0 SCENARIO 1 .............................................................................................................................................23 ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS .............................................................................................23

8.0 RECOMMENDED IMPROVEMENTS ...................................................................................................................27

9.0 VEHICLE MILES TRAVELED............................................................................................................................29 v
Date Palm Drive Mixed Use TA Table of Content
List of Figures
FIGURE 1-1A – PROJECT SITE PLAN (SCENARIO 1) .............................................................................................................5 FIGURE 1-1B – PROJECT SITE PLAN (SCENARIO 2) .............................................................................................................6 FIGURE 1-2A – PROJECT STUDY AREA AND TRIP DISTRIBUTION (PHASE 1) .............................................................................7 FIGURE 1-3B – .........................................................................................................................................................10 SCENARIO 1 PHASES 1 & 2 AM PEAK HOUR INTERSECTION VOLUMES ................................................................................10 FIGURE 1-3C – SCENARIO 2 PHASES 1 & 2 VOLUMES ......................................................................................................11 FIGURE 3-1 – CATHEDRAL CITY COMPREHENSIVE GENERAL PLAN CIRCULATION NETWORK .......................................................7 FIGURE 3-2 – CATHEDRAL CITY COMPREHENSIVE GENERAL PLAN BIKEWAYS AND LSEV ROUTES................................................8 FIGURE 3-3 – EXISTING YEAR 2023 AM/PM PEAK HOUR INTERSECTION VOLUMES................................................................9 FIGURE 4-1 – PROJECT COMPLETION YEAR 2025 CONDITIONS AM/PM PEAK HOUR INTERSECTION VOLUMES..........................12 FIGURE 5-1 – PROJECT COMPLETION YEAR 2027 CONDITIONS AM/PM PEAK HOUR INTERSECTION VOLUMES..........................16 FIGURE 6-1 – CUMULATIVE PROJECT VOLUMES ..............................................................................................................21 FIGURE 6-2 – CUMULATIVE YEAR 2027 CONDITIONS AM/PM PEAK HOUR INTERSECTION VOLUMES ......................................22 FIGURE 7-1 – ..........................................................................................................................................................25 PROJECT (SCENARIO 1) COMPLETION YEAR 2027 CONDITIONS AM PEAK HOUR INTERSECTION VOLUMES.................................25 FIGURE 7-2 – CUMULATIVE YEAR 2027 (SCENARIO 1) CONDITIONS AM PEAK HOUR INTERSECTION VOLUMES..........................26 List of Tables
TABLE ES-1 PROJECT FEATURE CONTRIBUTIONS............................................................................................................... III TABLE ES-2 PROJECT FAIR SHARE CONTRIBUTIONS ...........................................................................................................IV TABLE 1-1 PROJECT TRIP GENERATION RATE ....................................................................................................................2 TABLE 1-2 SCENARIO 1 PROJECT TRIP GENERATION...........................................................................................................3 TABLE 1-3 SCENARIO 2 PROJECT TRIP GENERATION...........................................................................................................3 TABLE 2-1 VEHICULAR LEVEL OF SERVICE DEFINITIONS .......................................................................................................2 TABLE 2-2 SIGNALIZED INTERSECTION LEVEL OF SERVICE HCM OPERATIONAL ANALYSIS METHOD..............................................3 TABLE 2-3 LEVEL OF SERVICE CRITERIA FOR STOP CONTROLLED UNSIGNALIZED INTERSECTIONS..................................................3 TABLE 2-4 CATHEDRAL CITY GENERAL PLAN ROADWAY SEGMENT ADT THRESHOLDS ..............................................................4 TABLE 3-1 EXISTING CONDITIONS 2023 INTERSECTION OPERATION ANALYSIS ........................................................................6 TABLE 3-2 EXISTING YEAR 2023 ROADWAY SEGMENT CAPACITY ANALYSIS............................................................................6 TABLE 4-1 PROJECT COMPLETION YEAR 2025 CONDITIONS INTERSECTION OPERATION ANALYSIS ............................................10 TABLE 4-2 PROJECT COMPLETION YEAR 2025 CONDITIONS ROADWAY SEGMENT CAPACITY ANALYSIS ......................................10 TABLE 5-1 PROJECT COMPLETION YEAR 2027 CONDITIONS INTERSECTION OPERATION ANALYSIS ............................................14 TABLE 5-2 PROJECT COMPLETION YEAR 2027 WITH IMPROVEMENTS INTERSECTION OPERATION ANALYSIS...............................14 TABLE 5-3 PROJECT COMPLETION YEAR 2027 CONDITIONS ROADWAY SEGMENT CAPACITY ANALYSIS ......................................15 TABLE 6-1 CUMULATIVE PROJECTS ...............................................................................................................................17 TABLE 6-2 CUMULATIVE YEAR 2027 CONDITIONS INTERSECTION OPERATION ANALYSIS.........................................................19 TABLE 6-3 CUMULATIVE YEAR 2027 WITH IMPROVEMENTS INTERSECTION OPERATION ANALYSIS ...........................................20 TABLE 6-4 CUMULATIVE YEAR 2027 CONDITIONS ROADWAY SEGMENT CAPACITY ANALYSIS...................................................20 TABLE 7-1 PROJECT COMPLETION YEAR 2027 (SCENARIO 1) CONDITIONS AM PEAK HOUR INTERSECTION OPERATION ANALYSIS..23 TABLE 7-2 CUMULATIVE YEAR 2027 (SCENARIO 1) CONDITIONS AM PEAK HOUR INTERSECTION OPERATION ANALYSIS ..............24 TABLE 8-1 PROJECT FEATURE CONTRIBUTIONS................................................................................................................27 TABLE 8-2 HORIZON YEAR 2045 PLUS PROJECTS INTERSECTION QUEUE ANALYSIS ...............................................................28 TABLE 8-3 PROJECT FAIR SHARE CONTRIBUTIONS............................................................................................................28 vi
Date Palm Drive Mixed Use TA Table of Content
Appendices

APPENDIX A - SCOPING AGREEMENT

APPENDIX B - TRAFFIC VOLUME DATA
APPENDIX C - EXISTING YEAR 2023 CONDITIONS PEAK HOUR INTERSECTION ANALYSIS WORKSHEETS APPENDIX D - PROJECT COMPLETION YEAR 2025 CONDITIONS PEAK HOUR INTERSECTION ANALYSIS

WORKSHEETS
APPENDIX E - PROJECT COMPLETION YEAR 2027 CONDITIONS PEAK HOUR INTERSECTION ANALYSIS

WORKSHEETS

APPENDIX F - CUMULATIVE PROJECT TRIP DISTRIBUTION
APPENDIX G - CUMULATIVE YEAR 2027 CONDITIONS PEAK HOUR INTERSECTION ANALYSIS WORKSHEETS

APPENDIX H - WITH IMPROVEMENT PEAK HOUR INTERSECTION AND SIGNAL WARRANT ANALYSIS WORKSHEETS APPENDIX I - INTERSECTION 2 SIGNAL WARRANT WORKSHEETS
APPENDIX J - SCENARIO 1 AM PEAK HOUR INTERSECTION AND SIGNAL WARRANT ANALYSIS WORKSHEETS APPENDIX K –
HORIZON YEAR 2045 PLUS PROJECT QUEUE ANALYSIS

APPENDIX L - TRANSIT ROUTE INFORMATION
vii
Date Palm Drive Mixed Use TA Project Introduction

1.0 PROJECT INTRODUCTION
This transportation analysis (TA) report has been prepared for Date Palm Drive Mixed Use project (Project) in Cathedral City. The technical report will be prepared in accordance with the County of Riverside Transportation Analysis Guidelines for Level of Service (LOS) and Vehicle Miles Traveled (VMT), December 2020 (Guidelines).

PROJECT DESCRIPTION
The project will be developed on a vacant site located on the southeast corner of Date Palm Drive and Rosemount Road. The project is proposing the construction of the following two land use scenarios, each in two phases:

STUDY AREA
The study area for this project was developed consistent with the Guidelines, including all intersections of “Collector” or higher classification streets with “Collector” or higher classification streets, at which the proposed project will add 50 or more peak hour trips. IEG prepared a project traffic study scoping agreement defining the study area, which was reviewed and approved by Cathedral City staff prior to the preparation of this technical report. Refer to Appendix A for approved scoping agreement.

Figure 1-2 presents the study area that includes the following key locations:

Study Area Intersections:

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road (Phase 2 only)

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Project Driveway and McCallum Way
1 Date Palm Drive Mixed Use TA Project Introduction
Study Roadway Segments:

1. Date Palm Drive, McCallum Way to Project Driveway

2. Date Palm Drive, Project Driveway to Rosemount Road

3. Date Palm Drive, Rosemount Road to 30th Avenue

4. Date Palm Drive, 30th Avenue to Tachevah Drive
Turning movement counts for one weekday during the morning and evening peak hours and average daily traffic (ADT) counts were conducted on Tuesday May 9, 2023. The turning movement and ADT counts are included in Appendix B. These counts will be utilized in Synchro 11 software to determine LOS at all study intersections and for roadway segment capacity analysis. Year 2025 and Year 2027 without Project traffic volumes will be developed by adding a 3% annual growth for two and four years, respectively, to the existing counts.

PROJECT TRIP GENERATION
The trip generation is a measure or forecast of the number of trips that begin or end at the Project site. These trips will result in some traffic increases on the streets where they occur. The rates used in this analysis were determined using Trip Generation, 11th Edition, published by the Institute of Transportation Engineers (ITE) is the method preferred by the Guidelines. Project ITE average trip generation rates are presented in Table 1-1.

Table 1-1
Project Trip Generation Rate
ITE LU
Code
822
AM Peak Hour PM Peak Hour Land Use1 Units2 Daily
In Out

1.11 1.34
Total In Out

3.77 5.12
Total
Strip Retail Plaza (<40k)3
Shopping Plaza (40-150k)4
Fast Food Restaurant w/ Drivethrough Window
TSF
TSF

1.66 2.19

2.77 3.53

3.77 4.72

7.54 9.84

62.78 821 102.78
TSF 934 22.75 21.86 44.61 17.18 15.85 33.03 467.48
Mini-Warehouse TSF 151 0.05 0.04 0.09 0.07 0.08 0.15 1.45 1Trip Generation Source: Institute of Transportation Engineers (ITE), Trip Generation Manual, Eleventh Edition (2021). 2TSF = Thousand Square Feet
3Peak hour and daily trip rates for LU 822 Strip Retail Plaza are based on fitted curve equations for total 11,159 sf of retail proposed for Scenario 1.
4PM peak hour and daily trip rates for LU 821 Shopping Plaza are based on fitted curve equations for total 54,725 sf of shopping plaza (supermarket plus retail) proposed for Scenario 2.

Table 1-2 summarizes the calculated trip generation associated with Scenario 1. As shown in Table 1- 2, Scenario 1 is anticipated to generate approximately 1,696 total daily trips, 192 AM peak hour trips and 137 PM peak hour trips.
2 Date Palm Drive Mixed Use TA Project Introduction
Table 1-2
Scenario 1 Project Trip Generation
AM Peak Hour PM Peak Hour
In Out Total
Land Use1
Intensity Units2 Daily
In Out Total
Phase 1
Mini-Warehouse
Phase 2
115.054

11.159
TSF
TSF
6 4 10 8 9 17 167
Strip Retail Plaza (<40k) 19
2 12
2 31
4 42
21 42
12 84
33 701
273 Internal Capture (11% - AM In, 17% - AM Out, 50% - PM In, 29% - PM Out, & 39% - Daily)3
Pass-by Reduction (40% - PM Peak Hour & Daily)5
Subtotal
0 0 0 8 12 20 171
17 10 27 13 18 31 257
Fast Food Restaurant w/ Drive-through
Window 7.030 TSF 160
2 154
2 314
4 121
12 111
21 232
33 3,286
460 Internal Capture (1% - AM In, 1% - AM Out, 10% - PM In, 19% - PM Out, 14% - Daily)3
Pass-by Reduction (50% - AM Peak Hour, 55% - PM Peak Hour & Daily)4 79 76 155 49 40 89 1,272
Subtotal
Scenario 1 Total
79 102
76 90
155
192
49 70
40 67
89 137
1,272
1,696
1Trip Generation Source: Institute of Transportation Engineers (ITE), Trip Generation Manual, Eleventh Edition (2021). 2 TSF = Thousand Square Feet
3 Internal Capture percentage is based on NCHRP Report 684, as recommended in the ITE Trip Generation Handbook, 3rd Edition, and included in Appendix A.
4 Pass-by reduction percentage is based on the ITE methodology per 2021 Pass-By Tables for ITE Trip Generation Appendices. 5 Used the same Pass-by reduction percentage as LU 821 Shopping Plaza.

Table 1-3 summarizes the calculated trip generation associated with Scenario 2. As shown in Table 1- 3, Scenario 2 would be anticipated to generate approximately 3,542 total daily trips, 243 AM peak hour trips and 340 PM peak hour trips. This results in an increase of 1,846 daily trips, an increase of 11 AM peak hour trips, and an increase of 203 PM peak hour trips when compared to Scenario 1.

However, since Scenario 1 would result in 13 additional outbound AM peak hour trips, Scenario 2 will still be the governing scenario for analysis and only the intersection AM peak hour will be analyzed for Scenario 1 as supplemental analysis. Please refer to the trip generation tables in Chapter 1 of this report.
.

Table 1-3
Scenario 2 Project Trip Generation
AM Peak Hour
In Out Total
PM Peak Hour Land Use1
Intensity Units2 Daily
In Out Total
Phase 1
Mini-Warehouse
Phase 2
115.054

54.725
TSF
TSF
6 4 10 8 9 17 167
Shopping Plaza (40-150k) 120
0 73
0 193
0 258
103
155
163
70 280
112
168
177
67 538
215
323
340
137
5,625
2,250
3,375
3,542
1,696
+1,846
Pass-by Reduction (40% - PM Peak Hour & Daily)3
Subtotal 120
Scenario 2 Total 126
73 77
90 -13
193
203
192
+11
Scenario 1 Total 102
Net Difference (Scenario 2-Scenario 1) +24 +93 +110 +203 1Trip Generation Source: Institute of Transportation Engineers (ITE), Trip Generation Manual, Eleventh Edition (2021). 2 TSF = Thousand Square Feet
3 Pass-by reduction percentage is based on the ITE methodology per 2021 Pass-By Tables for ITE Trip Generation Appendices. 3 Date Palm Drive Mixed Use TA Project Introduction

PROJECT TRIP DISTRIBUTION AND ASSIGNMENT
Trip distribution and assignment is the process of identifying the probable destinations, directions, and traffic routes that Project related traffic will affect. Once the proposed development’s trips have been estimated, they are assigned to the study area network. For this development, the Project trip distribution and assignment were developed, in coordination with City staff, based on the land use characteristics of the proposed project and surrounding area, existing travel patterns within the study area, anticipated travel patterns to and from the project site, and approved projects located in the vicinity of the project site.

Figures 1-1 through 1-3 show Project site plan, study area, trip distribution, and assignment.

PROJECT ACCESS
Rosemount Road does not currently extend to Date Palm Drive. The Project will be conditioned to construct half-width roadway improvement along the property frontage on Rosemount Road including curb, gutter, sidewalk and paving. Therefore, this report will take into consideration the following in addressing the proposed Project phases:
• Phase 1 – Rosemount Road extension not constructed prior to opening year 2025. Access would be limited to one proposed driveway along Date Palm Drive and one existing driveway along McCallum Way.
• Phase 2 - Rosemount Road extension in place prior to opening year 2027. Access to the project site will be provided via one proposed driveway along Date Palm Drive, one proposed driveway along Rosemount Road, and one existing driveway along McCallum Way.

Additionally, the Project will construct a traffic signal at the new intersection of Rosemount Road and Date Palm Drive.

PARKING
The proposed development will provide on-site parking spaces consistent with City of Cathedral City parking requirements.
4 NOT A PART

NOT A PART
Date Palm Drive Mixed Use
Project Site Plan (Scenario 1)
Figure 1-1a

NOT A PART

NOT A PART
Date Palm Drive Mixed Use
Project Site Plan (Scenario 2)
Figure 1-1b
15%
5%
4 20%
5%
25%
15% 20%
3 60%

PROJECT SITE
5 60%
40%
10%
15%
1 6
15%
Date Palm Drive Mixed Use - Study Area and Trip Distribution (Phase 1 Only) LEGEND # Instersecꢀon # Driveway Figure 1-2a
15%
5%
4 20%
5%
25%
15% 5%
3 45%
30%

PROJECT SITE
25% 2
55%
5 30%
15%
15%
10%
15%
1 6
5%
Date Palm Drive Mixed Use - Study Area and Trip Distribution (Phase 1 and 2 Total) LEGEND # Instersecꢀon # Driveway Attachment 2b
Date Palm Drive Mixed Use
Scenarios 1 & 2 Phase 1 Volumes
Figure 1-3a
Date Palm Drive Mixed Use
Scenario 1 Phases 1 & 2
AM Peak Hour Intersection Volumes
Figure 1-3b
Date Palm Drive Mixed Use
Scenario 1 Phases 1 & 2
AM Peak Hour Intersection Volumes
Figure 1-3b
Date Palm Drive Mixed Use TA Methodologies

2.0 METHODOLOGIES
This section documents the methodologies and assumptions used to conduct the circulation impact analysis for the proposed project. This section contains the following background information:
•
•
•
Analysis scenarios
Study time periods
Analysis methodologies
Refer to Appendix A for approved scoping agreement.

ANALYSIS SCENARIOS
This report presents an analysis of the study area intersections and roadway segments for the following anticipated timeframe scenarios:
•
•
•
•
Existing Conditions Year 2023
Project Completion Year 2025 (Existing Plus Ambient Plus Project Phase 1) Project Completion Year 2027 (Existing Plus Ambient Plus Project Phases 1 & 2) Cumulative Year 2027 (Existing Plus Ambient Plus Cumulative Plus Project)

STUDY TIME PERIODS
The Guidelines recommend the following peak hours for analysis:
•
•
Weekday AM (peak hour between 7:00 AM and 9:00 AM)
Weekday PM (peak hour between 4:00 PM and 6:00 PM)

ANALYSIS METHODOLOGIES
Street system operating conditions are typically described in terms of “level of service.” Level of service is a report-card scale used to indicate the quality of traffic flow on roadway segments and at intersections. Level of service (LOS) ranges from LOS A (free flow, little congestion) to LOS F (forced flow, extreme congestion). Table 2-1 describes generalized definitions of auto LOS A through F. 1 Date Palm Drive Mixed Use TA Methodologies
Table 2-1
Vehicular Level of Service Definitions
LOS Characteristics
Primarily free-flow operation. Vehicles are completely unimpeded in their ability to maneuver within the traffic stream. Controlled delay at the boundary intersections is minimal. The travel speed exceeds 85% of the base free-flow speed.

A
B
C
D
E
Reasonably unimpeded operation. The ability to maneuver within the traffic stream is only slightly restricted and control delay at the boundary intersections is not significant. The travel speed is between 67% and 85% of the base free-flow speed.

Stable operation. The ability to maneuver and change lanes at mid-segment locations may be more restricted than at LOS B. Longer queues at the boundary intersections may contribute to lower travel speeds. The travel speed is between 50% and 67% of the base free-flow speed.

Less stable condition in which small increases in flow may cause substantial increases in delay and decreases in travel speed. This operation may be due to adverse signal progression, high volume, or inappropriate signal timing at the boundary intersections. The travel speed is between 40% and 50% of the base free-flow speed.

Unstable operation and significant delay. Such operations may be due to some combination of adverse signal progression, high volume, and inappropriate signal timing at the boundary intersections. The travel speed is between 30% and 40% of the base free-flow speed.

Flow at extremely low speed. Congestion is likely occurring at the boundary intersections, as indicated by high delay and extensive queuing. The travel speed is 30% or less of the base free-flow speed. Also, LOS F is assigned to the subject direction of travel if the through movement at one or more boundary intersections have a volume-to-capacity ratio greater than 1.0.

F
Source: Highway Capacity Manual, Transportation Research Board (2016) Intersection Capacity Analysis
The analysis of peak hour intersection performance was conducted using the Synchro 11 software program, which uses methodologies defined in the Highway Capacity Manual (HCM) 6th Edition to calculate LOS. Level of service (LOS) for intersections is determined by control delay. Control delay is defined as the total elapsed time from when a vehicle stops at the end of a queue to the time the vehicle departs from the stop line. The total elapsed time includes the time required for the vehicle to travel from the last-in-queue position to the first-in-queue position, including deceleration of vehicles from free-flow speed to the speed of vehicles in the queue.

Signalized Intersections
The HCM analysis methodology for evaluating signalized intersections is based on the “operational analysis” procedure. This technique uses 1,900 passenger cars per hour of green per lane (pcphpl) as the maximum saturation flow of a single lane at an intersection. Table 2-2 summarizes the level of service criteria for signalized intersections.
2 Date Palm Drive Mixed Use TA Methodologies
Table 2-2
Signalized Intersection Level of Service HCM Operational Analysis Method Average Control
Delay Per Vehicle Level of Service (LOS) Characteristics LOS A occurs when the volume-to-capacity ratio is low and either progression is exceptionally favorable or the cycle length is very short. If it is due to favorable progression, most vehicles arrive during the green indication and travel through the intersection without stopping.
<10.0
LOS B occurs when the volume-to-capacity ratio is low and either progression is highly favorable or the cycle length is short. More vehicles stop than with LOS A.

LOS C occurs when progression is favorable or the cycle length is moderate. The number of vehicles stopping is significant, although many vehicles still pass through the intersection without stopping.

10.1 – 20.0

20.1 – 35.0
LOS D occurs when the volume-to-capacity ratio is high and either progression is ineffective or the cycle length is long. Many vehicles stop and individual cycle failures are noticeable.

35.1 – 55.0
LOS E occurs when the volume-to-capacity ratio is high, progression is unfavorable, and the cycle length is long. Individual cycle failures are frequent. 55.1 – 80.0 >80.0 LOS F occurs when the volume-to-capacity ratio is very high, progression is very poor, and the cycle length is long. Most cycles fail to clear the queue.

Source: Highway Capacity Manual, Transportation Research Board (2016) Side-Street Stop-controlled (SSSC) Intersections
The HCM analysis methodology for evaluating Side-Street Stop-controlled (SSSC) intersections is based on gap acceptance and conflicting traffic for vehicles stopped on the minor-street approaches.

The critical gap (minimum gap that would be acceptable) is defined as the minimum time interval in the major-street traffic stream that allows intersection entry for one minor-street vehicle. Average control delay and LOS for the “worst approach” are reported. Level of service is not defined for the entire intersection.

Table 2-3 summarizes the level of service criteria for unsignalized intersections.

Table 2-3
Level of Service Criteria for Stop Controlled Unsignalized Intersections Average Control Delay (sec/veh)
0-10
Level of Service (LOS)
A
B
C
D
E
> 10 – 15
> 15 – 25
> 25 – 35
> 35 – 50
> 50
Source: Highway Capacity Manual 6th Edition, Transportation Research Board (2016) F
Roadway Capacity Analysis
Roadway capacities are theoretical for planning purposes and are affected by factors such as intersection spacing, configuration, traffic control, access control, roadway grade, design geometrics, sight distance and vehicle mix. Roadway segment level of service is estimated by comparing the ADT on a roadway segment to the roadway ADT capacity. The Draft City of Cathedral City Comprehensive General Plan (July 2019) provides roadway segment volume capacities based on street classifications.

Table 2-4 shows these ADT thresholds.
3 Date Palm Drive Mixed Use TA Methodologies
Table 2-4
Cathedral City General Plan Roadway Segment ADT Thresholds ADT Capacity (Vehicles per day)
Classification Typical Lane Configuration

LOS A LOS B LOS C LOS D LOS E
Arterial Highway 6-Lane Divided 17,000
Source: Draft City of Cathedral City Comprehensive General Plan Table CM-3, July 2019 27,500 38,000 48,500 59,000
Traffic Signal Warrant Analysis
The Federal Highway Administration’s (FHWA) Manual on Uniform Traffic Control Devices (MUTCD), amended with California MUTCD 2014 Edition, presents warrant criteria for justifying the installation of a traffic signal at an unsignalized intersection. The criteria include studying traffic conditions, pedestrian characteristics, and physical characteristics of the intersection location. The MUTCD indicates that satisfaction of one or more of the traffic signal warrants does not in itself require the installation of a traffic control signal.

This study uses MUTCD Section 4C.04 Warrant 3, Peak Hour to assess the need of a traffic signal at the unsignalized intersections of Date Palm Drive and Tachevah Drive, and Date Palm Drive and Rosemount Road. Signal warrant worksheets are included in Appendices H and I.

City of Cathedral City 2040 General Plan Compliance
In coordination with City staff, the transportation analysis will identify LOS deficiencies for compliance with City of Cathedral City Comprehensive General Plan goals. Cathedral City has established LOS “D” as the minimum allowable level of service at intersections and roadway segments. Therefore, any intersection or roadway segment resulting in an LOS worse than this minimum will be considered deficient for the purposes of this analysis.

Project Fair Share Calculation Methodology
New development projects within the City of Cathedral City are required to provide needed infrastructure improvements to meet the demand created by the development and provide off-site improvements designed to ensure construction of the local and regional transportation networks to their ultimate classifications. In cases where this study identifies that the Project would contribute additional traffic volumes to cumulative traffic deficiencies, the Project’s fair share contribution towards needed transportation related improvements will be determined based on the following equation, which is the ratio of Project traffic to new traffic. New traffic is total future traffic less existing baseline traffic:

Project Fair Share % = Project Traffic / (Cumulative Year 2027 Traffic – Existing Year 2023 Traffic) The identified funding mechanisms and Project fair share contribution calculations are presented in Section 8.0 of this study.
4 Date Palm Drive Mixed Use TA Existing Year 2023

3.0 EXISTING YEAR 2023
This section documents the circulation system conditions within the study area of the project under Existing Year 2023 conditions. This section also documents potential operational deficiencies on the existing local and regional circulation networks.

ROADWAY NETWORK
Locally significant roadway located within the study area of the proposed project is discussed below.

Date Palm Drive functions as a divided 6-lane roadway within the study area from McCallum Way to Tachevah Drive. The posted speed limit is 55 miles per hour (mph) north of 30th Avenue and 45 mph south of 30th Avenue. Per the City of Cathedral City Comprehensive General Plan Circulation & Mobility Element, Date Palm Drive is at its buildout roadway classification of an arterial highway.

Figure 3-1 shows the City of Cathedral City Comprehensive General Plan Circulation Network.

TRANSIT SYSTEM
The SunLine Transit Agency (STA) is the main transit agency servicing Cathedral City. Currently, STA operates Route 4 within the vicinity of the project. Route 4 operates seven days a week and connects to Palm Springs west of the site and Palm Desert to the south. Weekday and weekend service frequency is 60 minutes. Bus stops for Route 4 is currently located within 350 ft of the site at the northeast corner of the Date Palm Drive and McCallum Way intersection for northbound service and at the southwest corner for southbound service. Pedestrian accessibility and connectivity from the project site to these bus stops is provided along the frontage (east side of Date Palm Drive) with signalized crossings at the intersection where the bus stops are located. Bus route information is included in Appendix L.

ACTIVE TRANSPORTATION SYSTEM
Pedestrian facilities are provided within the study area of the project. Pedestrian crosswalks are generally provided at signalized intersections along Date Palm Drive with sidewalks on the west side from McCallum Way to Tachevah Drive and on the east side from the Project limits to McCallum Way.

There are no existing bicycle facilities along Date Palm Drive. However, the City of Cathedral City Comprehensive General Plan Circulation & Mobility Element proposes a Class I off-road shared bike and pedestrian trail along Date Palm Drive.

Figure 3-2 shows the City of Cathedral City Comprehensive General Plan Bikeways and LSEV Routes.

TRAFFIC VOLUMES
The Existing Year 2023 peak hour intersection turning movement and ADT counts were counted on Tuesday May 9, 2023. The counts are provided in Appendix B.

ANALYSIS RESULTS
Tables 3-1 and 3-2 show Existing Conditions intersection operation and roadway segment capacity analysis results.

Figure 3-3 shows the peak hour intersection turning movement volumes under Existing Year 2023 Conditions.
5 Date Palm Drive Mixed Use TA Existing Year 2023
Table 3-1
Existing Conditions 2023 Intersection Operation Analysis Existing Conditions
Intersection Intersection Control
Delay (a) LOS (b)
AM/PM Peak

1. Date Palm Drive and McCallum Way

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive
Signalized
Signalized
SSSC

11.9/11.3

23.2/21.6

24.8/20.9
B/B
C/C
C/C
Notes:
(a) Delay refers to the average control delay for the entire intersection and control delay for the worst movement for SSSC intersections, measured in seconds per vehicle.
(b) LOS calculations are based on the methodology outlined in the Highway Capacity Manual 6th Edition and performed using Synchro 11.

Per the analysis results shown in Table 3-1, all analyzed intersections are operating at an acceptable LOS under Existing Year 2023 Conditions.

Existing Year 2023 Conditions peak hour analysis worksheets are provided in Appendix C.

Table 3-2
Existing Year 2023 Roadway Segment Capacity Analysis
Existing Year 2023 LOS E
Capacity Roadway Segment Classification

ADT V/C LOS
Date Palm Drive
McCallum Way to Project Driveway
Project Driveway to 30th Avenue
30th Avenue to Tachevah Drive
6-lane Arterial Highway
6-lane Arterial Highway
6-lane Arterial Highway
59,000
59,000
59,000
21,195
21,246
24,031

0.359

0.360

0.407
B
B
B
Per the analysis results shown in Table 3-2, all analyzed roadway segments are operating at an acceptable LOS under Existing Year 2023 Conditions.
6 Date Palm Drive Mixed Use
Cathedral City General Plan Circulation Network
Figure 3-1
Date Palm Drive Mixed Use
Cathedral City General Plan Bikeways and NSEV Routes
Figure 3-2
Date Palm Drive Mixed Use
Existing Year 2023 AM/PM Peak Hour Intersection Volumes Figure 3-3
Date Palm Drive Mixed Use TA Project Completion Year 2027

4.0 PROJECT COMPLETION YEAR 2025 CONDITIONS
This section documents the circulation system conditions within the study area of the project under Scenario 2 Project Completion Year 2025 (Existing Plus Ambient Plus Project Phase 1) Conditions. Since Phase 1 of the project is expected to be built and operational in 2025, a 3% annual growth factor for two years was applied to the existing counts. Project Phase 1 traffic volumes are then added to these volumes to develop Project Completion Year 2025 Conditions traffic volumes. This section also documents potential operational deficiencies on the existing local and regional circulation network.

ANALYSIS RESULTS
Tables 4-1 and 4-2 show Project Completion Year 2025 Conditions intersection operation and roadway segment capacity analysis results, respectively.

Figure 4-1 shows intersection turning movement volumes under Project Completion Year 2025 Conditions.

Table 4-1
Project Completion Year 2025 Conditions Intersection Operation Analysis Project Completion Year 2025 Intersection
Control Intersection
Delay (a) LOS (b)
AM/PM Peak

1. Date Palm Drive and McCallum Way

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Existing Driveway and McCallum Way
Signalized
Signalized
SSSC

12.6/11.9

23.7/23.7

29.0/23.5

11.1/14.6

12.0/10.9
B/B
C/C
D/C
B/B
B/B
SSSC
SSSC
Notes:
(a) Delay refers to the average control delay for the entire intersection, measured in seconds/vehicle. At unsignalized intersections, delay refers to the worst movement.
(b) LOS calculations are based on the methodology outlined in the Highway Capacity Manual 6th Edition and performed using Synchro 11.

Per the analysis results shown in Table 4-1, all analyzed intersections are operating at an acceptable LOS under Project Completion Year 2025 Conditions. Project Completion Year 2025 Conditions peak hour analysis worksheets are provided in Appendix D.

Table 4-2
Project Completion Year 2025 Conditions Roadway Segment Capacity Analysis LOS E Project Completion Year 2025
Capacity Roadway Segment Classification

ADT V/C LOS
Date Palm Drive
McCallum Way to Project Driveway
Project Driveway to 30th Avenue
30th Avenue to Tachevah Drive
Arterial Highway
Arterial Highway
Arterial Highway
59,000
59,000
59,000
22,561
22,624
25,533

0.382

0.383

0.433
B
B
B
10 Date Palm Drive Mixed Use TA Project Completion Year 2027 Per the analysis results shown in Table 4-2, all analyzed roadway segments are operating at an acceptable LOS under Project Completion Year 2025 Conditions.
11 Date Palm Drive Mixed Use
Project Completion Year 2025
AM/PM Peak Hour Intersection Volumes
Figure 4-1
Date Palm Drive Mixed Use TA Project Completion Year 2027

5.0 PROJECT COMPLETION YEAR 2027 CONDITIONS
This section documents the circulation system conditions within the study area of the project under Scenario 2 Project Completion Year 2027 (Existing Plus Ambient Plus Scenario 2 Phases 1 & 2) Conditions.

The Rosemount Road extension is anticipated to be in place prior to opening year 2027. Therefore, this analysis assumes the construction of a traffic signal at the new intersection of Rosemount Road and Date Palm Drive by the Project. Signal warrant worksheets are provided in Appendix I. IEG understands that existing traffic patterns would change due to these improvements. Existing Year 2023 intersection peak hour traffic volumes for Intersection 2 were developed by redistributing forecast traffic from RIVCOM 3 Traffic Analysis Zone (TAZ) to the intersection of Date Palm Drive and Rosemount Road.

The TAZ adjacent to the west side of Date Palm Drive loads approximately one-third of its base year 2018 daily traffic onto Date Palm Drive. The TAZ that the project is located within also loads approximately onethird of its 2018 daily traffic volume onto the intersection of Santoro Drive and 30th Avenue. Since both TAZs include similar residential and commercial retail components, the unadjusted zone connector volumes applied to the intersection of Santoro Drive and 30th Avenue were also applied at the intersection of Date Palm Drive and Rosemount Road.

An annual growth factor based on the growth from Base Year 2018 to Forecast Year 2045 was applied to 2018 TAZ AM and PM peak hour volumes to calculate the redistributed volumes that would be applied to Existing Year 2023 counts. The turning movement distribution percentages for the westbound approach at the intersection of Date Palm Drive and 30th Avenue was applied to the intersection of Date Palm Drive and Rosemount Road to calculate adjusted Year 2023 turning movement volumes. RIVCOM 3 model plots, annual growth calculation, Date Palm Drive and 30th Avenue distribution, and adjusted Year 2023 volumes are included in Appendix B.

Since Phase 2 of the project is expected to be built and operational in 2027, a 3% annual growth factor for four years was applied to the existing counts. Scenario 2 Phases 1 & 2 traffic volumes were then added to these adjusted Year 2023 volumes to develop Project Completion Year 2027 Conditions traffic volumes, shown in Figure 5-1. This section also documents potential operational deficiencies on the proposed circulation network.

ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS
Tables 5-1 and 5-2 show Project Completion Year 2027 Conditions intersection operation and roadway segment capacity analysis results, respectively.

Figure 5-1 shows intersection turning movement volumes under Project Completion Year 2027 Conditions.
13 Date Palm Drive Mixed Use TA Project Completion Year 2027 Table 5-1
Project Completion Year 2027 Conditions Intersection Operation Analysis Project Completion Year 2027
Intersection Intersection Control
Delay (a) LOS (b)
AM/PM Peak

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Existing Driveway and McCallum Way
Signalized
Signalized
Signalized
SSSC

13.6/13.0

8.4/17.7
B/B
A/B
C/B
E/D
B/C
B/B

25.2/20.0

38.4/29.3

11.6/19.3

11.8/11.9
SSSC
SSSC
Notes:

Per the analysis results shown in Table 5-1, all analyzed intersections are operating at an acceptable LOS under Project Completion Year 2027 Conditions except for the following:
•
Date Palm Drive and Tachevah Drive - Installation of a traffic signal.

It should be noted that Date Palm Drive and Tachevah Drive intersection will experience poor LOS under AM peak hour due to the EBL movement which the project will not contribute to. The Project will only contribute trips to the NBL and EBR vehicular movements at the subject intersection. The delays and degradation in the EBL LOS are due to the increase in background vehicular volumes along Date Palm Drive related to the increase in developments throughout the City that are consistent with the buildout land use intensities anticipated in the Cathedral City General Plan. The increase of northbound and southbound through volumes on Date Palm Drive will reduce the number of gaps available for left turn vehicular movements out of Tachevah Drive.

Table 5-2 demonstrates the effectiveness of signalizing the two locations should the City secure the funds to address the existing operational deficiencies at these intersections.

Table 5-2
Project Completion Year 2027 With Improvements Intersection Operation Analysis Project Completion Year 2027
With Improvements Project Completion Year 2027
Intersection
Delay (a) LOS (b) Delay (a) LOS (b)
AM/PM Peak

4. Date Palm Drive and Tachevah Drive 38.4/29.3 E/D 6.4/5.7 A/A Notes:

Bold indicates deficient LOS E or F
(a) Delay refers to the average control delay for the entire intersection, measured in seconds/vehicle. At unsignalized intersections, delay refers to the worst movement.
(b) LOS calculations are based on the methodology outlined in the Highway Capacity Manual 6th Edition and performed using Synchro 11. 14 Date Palm Drive Mixed Use TA Project Completion Year 2027 Project Completion Year 2027 Conditions peak hour analysis worksheets are provided in Appendix E.

Project Completion Year 2027 With Improvement peak hour analysis worksheets and signal warrant analysis are provided in Appendix H.

Table 5-3
Project Completion Year 2027 Conditions Roadway Segment Capacity Analysis LOS E
Capacity
Project Completion Year 2027 Roadway Segment Classification

ADT V/C LOS
Date Palm Drive
McCallum Way to Project Driveway
Project Driveway to Rosemount Drive
Rosemount Drive to 30th Avenue
30th Avenue to Tachevah Drive
Arterial Highway
Arterial Highway
Arterial Highway
Arterial Highway
59,000
59,000
59,000
59,000
24,391
24,540
25,514
27,758

0.413

0.416

0.432

0.470
B
B
B
C
Per the analysis results shown in Table 5-3, all analyzed roadway segments are operating at an acceptable LOS under Project Completion Year 2027 Conditions.
15 Date Palm Drive Mixed Use
Project Completion Year 2027
AM/PM Peak Hour Intersection Volumes
Figure 5-1
Date Palm Drive Mixed Use TA Cumulative Year 2027

6.0 CUMULATIVE YEAR 2027 CONDITIONS
This section documents the circulation system conditions within the study area of the Project under Scenario 2 Cumulative Year 2027 (Existing Plus Ambient Plus Cumulative Plus Scenario 2 Phases 1 & 2) Conditions. The Cumulative Conditions traffic volumes were developed by adding cumulative project trips to the Project Completion 2027 Conditions traffic volumes. These cumulative projects are listed in Table 6-1 and the cumulative project trip volumes assigned to the study intersections are shown in Figure 6-1.

The locations and trip distribution for these cumulative projects are included in Appendix F.

Table 6-1
Cumulative Projects
ID1
1 Project Land Use
Service Station
Quantity
10 Units2
VFP
DU
Kroger Gas Station
2 Wren Project Residential 204
3 Vallarta Shopping Center
Canyon Springs Villas
Mountain View Estates
Shopping Plaza
Residential
134 TSF
4 58 DU
5 Residential 110 DU
Service Station with Convenience
Market
Residential
6 Tower Market 12 VFP
200

6.65 DU
TSF
TSF
Retail
7 Cathedral Cove Center Fast-Food Restaurant
Service Station with Convenience
Market

14.025
12 VFP
C1
C2
C3
C4
C5
Ecoplex Park Phases 1 & 2
Horizon Gardens
CCBC Restaurant
Quick Quack Carwash
7-Eleven
Cannabis Cultiviation
Senior Living

93.44 80
TSF
OB
Restaurant 2.5

3.5 8
TSF
TSF
VFP
TSF
TSF
DU
Carwash
Gas Station
Cannabis (Cultivation) Facility
Dispensary
486
3 C6 Ramon 19
C7
C8
District East Residential 43
Greenscape Engineering (67587 Canyon Plaza) Cannabis Cultivation Casino
40 TSF
TSF
TSF
40 Shopping Center
High-Turnover Sit-Down
Restaurant
24 14 TSF
C9 Agua Caliente Casino
Quality Restaurant
Fast Casual Restaurant
Coffee Shop w/o Drive-Thru
Residential
14 6
TSF
TSF
2 TSF
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
Nirvana Estates 103
6 DU
Silver Torch Motel Motel Rooms
Cree Gas Station Convenience Store w/ Gas Station VFP
Event Center
8 Cathedral City Events Center (35900 Date Palm Dr)
Amazon Hub Center (35780 Date Palm Dr)
Medicinal Healing (36555 Bankside Dr)
Horizon Hotel (67670 Carey Rd)
MoGenCo (67555/67575 East Palm Canyon Drive)
Desert Lexus (67855 East Palm Canyon Drive)
Cathedral City Community Amphitheater
Canyon View / Summit Project by EHOF Canyon
View, LLC

80.0 94.0

11.0 68
TSF
Warehouse TSF
Cannabis Cultivation Facility
Hotel
TSF
Rooms
Cannabis Cultivation Facility TSF
Automobile Dealership
Amphitheater
111.0

41.0 2,909
TSF
Seats
P1 Residential 80 DU
17 Date Palm Drive Mixed Use TA Cumulative Year 2027
P2 Palm Springs Surf Club
Parker Hotel Expansion
Vibrante
Water Park
Hotel

7.746
32 TSF
Rooms
DU
P3
P4 Condominium
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Medical Office
Residential
Residential
Residential
Residential
Residential
Residential
Residential
Commercial
Medical Office
Bank
41 RM1
RM2
RM 38 JV LLC 82
84 DU
Carefield Senior Living DU
ECHO at Rancho Mirage
Santa Barbara Cove Estates
Pulte Homes/ Del Webb
Veneto
RM3 9 DU
RM4 20 DU
RM5 1,200
34 DU
RM6 DU
RM7 Revelle 32 DU
RM8 Bella Clancy 20 DU
RM9 Mirada Villas 46 DU
RM10
RM11
RM12
RM13
RM14
RM15
RM16
RM17
RM18
RM19
RM20
RM21
RM22
RM23
RM24
RM25
Estilo 39 DU
RM Five-1 LLC/Kilani
Heinrich/Steinberg
4 DU
4 DU
Rancho Mirage LLC 4 DU
La Paloma Homes, Inc.

Monterey Medical Center
38 JV, LLC c/o Meriwether Companies
38 JV, LLC c/o Meriwether Companies
38 JV, LLC c/o Meriwether Companies
GRV Mirage, LLC (ECHO)
Ken Catanzarite
13 DU

75.164
10 TSF
DU
97 DU
10 DU
9 DU
20 DU
Miragedunes Properties
AMS Development Group (Bellavia)
IN-N-OUT Burgers
9 DU
18 DU

3.995

13.80 3.47
400
175.00
1,932

5.565
60 TSF
TSF
TSF
Rooms
TSF
DU
DHO Medical Office Building
Chase Bank
Hotel
RM26 Commercial
Residential
Commercial
Hotel
Section 31 Specific Plan Project
Tower Energy Group
Oasis Ranch LLC
RM27
RM28
TSF
Rooms
Residential DU
Commercial
Hotel
108

20.00 100
35 TSF
Rooms
DU
RM29 Horizon Pacific Rancho Cove MSA Consulting
Residential
Residential
Commercial
Office
106

6.966

6.399
56 DU
RM30
RM31
RM32
Ritz-Carlton Residences
TSF
TSF
Beds
TSF
TSF
Hazelden Betty Ford Center Drug/Alcohol Treatment Ctr.

Auto Sales (New)
Auto Care Center
58 Rancho Mirage Highway 111 Dealerships
56 Notes:
1 Projects with C, P, or RM designation are based on Cathedral Cove Center Traffic Analysis dated April 8, 2022, and prepared by Urban Crossroads.

Volumes distributed north of Intersection 17 Date Palm Drive and Ramon Road were applied to study intersections as northbound and southbound through volumes.
2 DU = Dwelling Units, TSF = Thousand Square Feet, VFP = Vehicle Fueling Positions, and OB = Occupied Beds This section also documents potential Cumulative Conditions operational deficiencies on the circulation network. Rosemount Road does not currently extend to Date Palm Drive. The Rosemount Road extension is anticipated to be in place prior to opening year 2027. Therefore, the following analysis assumes a traffic signal at the new intersection of Date Palm Drive and Rosemount Road. Signal warrant worksheets are provided in Appendix I.
18 Date Palm Drive Mixed Use TA Cumulative Year 2027

ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS
Tables 6-2 through 6-4 show Cumulative Conditions intersection operation and roadway segment analysis results, respectively.

Figure 6-2 shows intersection turning movement under Cumulative Conditions.

Table 6-2
Cumulative Year 2027 Conditions Intersection Operation Analysis Cumulative Conditions
Intersection Intersection Control
Delay (a) LOS (b)
AM/PM Peak

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Existing Driveway and McCallum Way
Signalized
Signalized
Signalized
SSSC

15.3/17.7

22.7/41.0

29.0/25.5

61.0/59.0

13.0/23.5

12.3/12.5
B/B
C/D
C/C
F/F

SSSC B/C

SSSC B/B
Notes:

Per the analysis results shown in Table 6-2, all analyzed intersections are operating at an acceptable LOS under Cumulative Conditions except for the following:
•
Date Palm Drive and Tachevah Drive - Installation of a traffic signal.

It should be noted that Date Palm Drive and Tachevah Drive intersection will experience poor LOS under AM and PM peak hours due to the EBL movement which the project will not contribute to. The Project will only contribute trips to the NBL and EBR vehicular movements at the subject intersection. The delays and degradation in the EBL LOS are due to the increase in background vehicular volumes along Date Palm Drive related to the increase in developments throughout the City that are consistent with the buildout land use intensities anticipated in the Cathedral City General Plan. The increase of northbound and southbound through volumes on Date Palm Drive will reduce the number of gaps available for left turn vehicular movements out of Tachevah Drive.

Table 6-3 demonstrates the effectiveness of signalizing the two locations should the City secure the funds to address the existing operational deficiencies at these intersections. 19 Date Palm Drive Mixed Use TA Cumulative Year 2027
Table 6-3
Cumulative Year 2027 With Improvements Intersection Operation Analysis Cumulative Year 2027
With Improvements Cumulative Year 2027
Intersection
Delay (a) LOS (b) Delay (a) LOS (b)
AM/PM Peak

4. Date Palm Drive and Tachevah Drive 61.0/59.0 F/F 6.4/5.7 A/A Notes:

Cumulative Year 2027 Conditions peak hour analysis worksheets are provided in Appendix G. Cumulative Year 2027 With Improvement peak hour analysis worksheets and signal warrant analysis are provided in Appendix H.

Table 6-4
Cumulative Year 2027 Conditions Roadway Segment Capacity Analysis Cumulative Year 2027 LOS E
Capacity Roadway Segment Classification

ADT V/C LOS
Date Palm Drive
McCallum Way to Project Driveway
Project Driveway to Rosemount Drive
Rosemount Drive to 30th Avenue
Tortuga Road to Tachevah Drive
Arterial Highway
Arterial Highway
Arterial Highway
Arterial Highway
59,000
59,000
59,000
59,000
28,431
28,580
29,054
30,648

0.482

0.484

0.492

0.519
C
C
C
C
Per the analysis results shown in Table 6-3, all analyzed roadway segments are operating at an acceptable LOS under Cumulative Year 2027 Conditions.
20 Date Palm Drive Mixed Use
Cumulative Projects Volumes
Figure 6-1
Date Palm Drive Mixed Use
Cumulative Year 2027
AM/PM Peak Hour Intersection Volumes
Figure 6-2
Date Palm Drive Mixed Use TA Scenario 1

7.0 SCENARIO 1
This section documents the circulation system conditions within the study area of the project during the AM peak hour under Project (Scenario 1) Completion Year 2027 and Cumulative Year 2027 (Scenario 1) Conditions. Rosemount Road does not currently extend to Date Palm Drive. The Rosemount Road extension is anticipated to be in place prior to opening year 2027. Therefore, the following analysis assumes a traffic signal at the new intersection of Date Palm Drive and Rosemount Road. Signal warrant worksheets are provided in Appendix I.

ANALYSIS RESULTS AND RECOMMENDED IMPROVEMENTS
Tables 7-1 through 7-2 show Project (Scenario 1) Completion Year 2027 and Cumulative Year 2027 (Scenario 1) Conditions PM peak hour intersection operation analysis results, respectively.

Figures 7-1 through 7-2 show intersection turning movement volumes under Project (Scenario 1) Completion Year 2027 and Cumulative Year 2027 (Scenario 1) Conditions, respectively.

Table 7-1
Project Completion Year 2027 (Scenario 1) Conditions AM Peak Hour Intersection Operation Analysis Project Completion Year 2027 (Scenario 1) Intersection
Control Intersection
Delay (a)

15.2 LOS (b)

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Existing Driveway and McCallum Way
Signalized
Signalized
Signalized
SSSC
B
A
C
F

24.1 29.0

61.0 SSSC 13.5 B
SSSC 12.6 B
Notes:
(a) Delay refers to the average control delay for the entire intersection, measured in seconds/vehicle. At unsignalized intersections, delay refers to the worst movement.
(b) LOS calculations are based on the methodology outlined in the Highway Capacity Manual 6th Edition and performed using Synchro 11.

Per the analysis results shown in Table 7-1, all analyzed intersections are operating at an acceptable LOS under Project (Scenario 1) Completion Year 2027 Conditions except for the following:
• Date Palm Drive and Tachevah Drive - as shown in Table 7-1, the addition of the project trips at this location would result in the same delay as Scenario 2. Therefore, no additional improvements are recommended at this location when compared to Scenario 2.

Project (Scenario 1) Completion Year 2027 Conditions AM peak hour analysis worksheets are provided in Appendix J.
23 Date Palm Drive Mixed Use TA Scenario 1
Table 7-2
Cumulative Year 2027 (Scenario 1) Conditions AM Peak Hour Intersection Operation Analysis Cumulative Year 2027 (Scenario 1) Intersection
Control Intersection
Delay (a)

15.2 LOS (b)

1. Date Palm Drive and McCallum Way

2. Date Palm Drive and Rosemount Road

3. Date Palm Drive and 30th Avenue

4. Date Palm Drive and Tachevah Drive

5. Date Palm Drive and Project Driveway

6. Existing Driveway and McCallum Way
Signalized
Signalized
Signalized
SSSC
B
C
C
F

24.1 29.0

Per the analysis results shown in Table 7-2, all analyzed intersections are operating at an acceptable LOS under Cumulative Year 2027 (Scenario 1) Conditions except for the following:
• Date Palm Drive and Tachevah Drive - as shown in Table 7-2, the addition of the project trips at this location would result in a delay lower than Scenario 2. Therefore, no additional improvements are recommended at this location when compared to Scenario 2.

Cumulative Year 2027 (Scenario 1) Conditions AM peak hour analysis worksheets are provided in Appendix J.
24 Date Palm Drive Mixed Use
Project (Scenario 1) Completion Year 2027
AM Peak Hour Intersection Volumes
Figure 7-1
Date Palm Drive Mixed Use
Cumulative Year 2027 (Scenario 1)
AM Peak Hour Intersection Volumes
Figure 7-2
Date Palm Drive Mixed Use TA Recommended Improvements

8.0 RECOMMENDED IMPROVEMENTS
New development projects within the City of Cathedral City are required to provide needed infrastructure improvements to meet the demand created by the development and provide off-site improvements designed to ensure construction of the local and regional transportation networks to their ultimate classifications. This section summarizes the project feature improvements and recommended improvements at deficient locations under all analyzed scenarios discussed in this report.

The proposed traffic signal at the new intersection of Date Palm Drive and Rosemount Road will be constructed by whichever project is constructed first between Date Palm Drive Mixed Use, the Wren Project, and the Vallarta Shopping Center. All three projects will contribute to the funding of the transportation improvement based on their portion of total ADT generated. It should be noted that through the course of the subject project entitlement process, it has been determined that Vallarta will no longer be interested in acquiring phase 2 parcel to construct a supermarket but instead the supermarket will be built on the vacant site at the southwest corner of Date Plam and Rosemount Road intersection; therefore, the Project fair share contribution of 16.29% toward the signalization of Date Plam and Rosemount Road intersection is calculated based on the project scenario 1 land use intensity, as shown in Table 8-1. Wren Project and Vallarta Shopping Center project Trip generation is shown in Appendix K.

Table 8-1
Project Feature Contributions
Project ADT
(Scenario 1)
Project ADT
(Scenario 2)
Project Share %
(Scenario 1)
Project Share %
(Scenario2) Project
Date Palm Drive Mixed Use
Wren Project
1,668
1,375
7,199
10,242
3,542
1,375
7,199
12,116

16.29%

13.43%

70.29%
100%

29.23%

11.35%

59.42%
100%
Vallarta Shopping Center
Total
Additionally, the ultimate turn lane lengths were determined by analyzing queues under Horizon Year 2045 Plus Projects Conditions. An annual growth factor based on the growth from RIVCOM 4.01 Base Year 2018 with 3 Projects to Forecast Year 2045 with 3 Projects was applied to Adjusted Existing Year 2023 counts (from Section 5.0) Plus 3 Projects volumes. The calculated growth factors, developed Horizon Year Plus Projects volumes, and queue analysis worksheets are included in Appendix K.

Table 8-2 shows the recommended turn lane lengths to accommodate the anticipated queue demand. 27 Date Palm Drive Mixed Use TA Recommended Improvements Table 8-2
Horizon Year 2045 Plus Projects Intersection Queue Analysis Recommended
Queue (ft) Excess
Demand
Recommended
Turn Lane
Length (ft)
Analyzed Turn
Lane Length (ft)
Minimum
Taper Length
(ft)
Intersection Movement
AM
101
53 PM AM PM
NBL
NBR
SBL
180
100
280
140
140
90 90
90 90
60 185
103
281
75 --
--
--
--
--
--
--
--
--
--
200
120
300
140
160
Date Palm Drive and
Rosemount Road 171
136
74 SBR
WBL 147
In cases where this study identified that the Project would contribute additional traffic volumes to cumulative traffic deficiencies, Project fair share costs of improvements necessary to mitigate deficient conditions have been calculated. The Project’s 8.7% fair share cost of improvements shown in Table 8-3 is determined based on the following equation, which is the ratio of Project traffic to new traffic. New traffic is total future traffic less existing baseline traffic:

Project Fair Share % = Project Traffic / (Cumulative Year 2027 Traffic – Existing Baseline Traffic) Table 8-3
Project Fair Share Contributions
Existing
Baseline Traffic
Project
Traffic
Cumulative Year
2027 Traffic
Project Fair
Share % # Intersection Funding Mechanism
Date Palm Drive and Tachevah Drive
4 AM
PM
1,927
1,999
41 68
2,527
2,784

6.8% Project fair share towards

8.7% intersection signalization
28 Date Palm Drive Mixed Use TA Vehicle Miles Traveled

9.0 VEHICLE MILES TRAVELED
This section documents the results of the Project VMT Screening assessment per the Guidelines.

The Guidelines provide project screening criteria to determine if a detailed VMT analysis is necessary. A presumption can be made that a project land use would not cause a significant transportation related CEQA impact if a project meets any one of project-level assessment screening criteria identified in the Guidelines.

Per the Guidelines screening criteria for development projects, Scenarios 1 and 2 are screened out from VMT analysis since the mini warehouse component satisfies the Small Project screening criterion, and the strip retail plaza, fast-food restaurant, and shopping plaza components meet the Local-serving retail screening criterion. Therefore, all Scenarios 1 and 2 land use components are presumed to cause less than significant VMT impacts. It is our recommendation that the project be approved with no additional projectlevel VMT analysis.

The VMT Screening Assessment is included in a separate document. 29 APPENDIX A -

SCOPING AGREEMENT

SCOPING AGREEMENT FOR TRANSPORTATION LOS ANALYSIS
This letter acknowledges the Riverside County Transportation Department requirements for transportation level of service analysis of the following project. The analysis must follow the Riverside County Transportation Department Transportation Analysis Guidelines, December 2020.

Case No.

Related Cases
Project Name:

Project Address:

Date Palm Drive Mixed Use
SEC of Date Palm Drive and Rosemount Road extension
Project Description: Phase 1 - 115,916 sf self storage. Phase 2 - 2 scenarios; see attached memo Traffic Consultant Applicant/Developer
Stephen Nieto, The Altum Group
44-600 Village Court, Ste 100
Palm Desert, CA 92260
Name: George Ghossain, Integrated Engineering Grp
Address: 23905 Clinton Keith Road 114-280
Wildomar, CA 92595
Telephone:

E-mail:
951-239-1546 760-346-4750
[email protected] [email protected]
Current GP Land Use
Current Zoning
Proposed Land Use General Commercial General Commercial Proposed Zoning Planned Community Comm Planned Community Comm A. Trip Generation Source: ITE Trip Generation Manual, 11th Edition (2021) Current Trip Generation Proposed Trip Generation
In Out Total In Out Total
AM Trips
PM Trips
0 0 0 126 78 243
0 0 0 163 177 340
Internal Trip Allowance
Pass-By Trip Allowance
✔ Yes
Yes
No
No
(
(
% Trip Discount)
% Trip Discount)
See Memo
✔ See Memo
A pass-by trip discount of 25% is allowed for appropriate land uses. The pass-by trips at adjacent study area intersections and project driveways shall be indicated on a report figure.

B. Trip Geographic Distribution: N 15 % S 40 % E 25 % W 0 % (attach exhibit for detailed assignment)
C. Background Traffic
Project Build-out Year:

Phase Year(s)
2027 Annual Ambient Growth Rate: %
Ph1-2025, Ph2-2027
3 Other projects to be analyzed:

Model/Forecast methodology
The Wren & Vallarta Shopping Center
RIVCOM 4 2018 BY & 2045 HY
TAGSA v03092022
D. Study intersections: (NOTE: Subject to revision after other projects, trip generation and distribution are determined, or comments from other agencies.)

1. 2.

3. 4.

5. 6.

7. Date Palm Drive & McCallum Way
Date Palm Drive & Rosemount Road
Date Palm Drive & 30th Avenue
Date Palm Drive & Tachevah Drive
Date Palm Drive & Project Driveway
Existing Driveway & McCallum Way

8. 9.

10. E. Study Roadway Segments: (NOTE: Subject to revision after other projects, trip generation and distribution are determined, or comments from other agencies.)

1. 2.

3. 4.

5. 6.

7. Date Palm Dr, McCallum Wy to Project Dwy
Date Palm Dr, Project Dwy to Rosemount Rd
Date Palm Dr, Rosemount Rd to 30th Ave
Date Palm Dr, 30th Ave to Tachevah Dr

8. 9.

10. F. Other Jurisdictional
Is this project within a City’s Sphere of Influence or one-mile radius of City boundaries? ✔ Yes No If yes, name of jurisdiction(s): Rancho Mirage
G. Site Plan (please attach reduced copy)
H. Specific issues to be addressed in the Study (in addition to the standard analysis described in the Guideline) (To be filled out by Transportation Department) (NOTE: If the traffic study states that “a traffic signal is warranted” (or “a traffic signal appears to be warranted,” or similar statement) at an existing unsignalized intersection under existing conditions, 8-hour approach traffic volume information must be submitted in addition to the peak hourly turning movement counts for that intersection.) Date Palm Dr/Rosemount Rd - traffic signal warrant and queue analysis for exclusive SBL & NBR I. Existing Conditions
Traffic count data must be new or recent. Provide traffic count dates if using other than new counts.

Date of counts_0_5_/_0_9_/_2_0__2_3___________________________________________________________ *NOTE* Traffic Study Submittal Form and appropriate fee must be submitted with this form.

Recommended by: Approved Scoping Agreement
Traffic Consultant Date Riverside County Transportation Department
Date
Scoping Agreement Submitted on
Revised on
TAGSA v03092022
Date:

To:

June 2, 2023
John Corella, P.E., City Engineer/Public Works Director, Cathedral City George Ghossain, Principal Engineer, Integrated Engineering Group Scoping Agreement for Date Palm Drive Mixed Use Project From:

Subject:

Integrated Engineering Group (IEG) is pleased to submit this scoping agreement for the Date Palm Drive Mixed Use project (Project) located at the northeast corner of the Date Palm Drive and McCallum Way intersection within Cathedral City, California. The project is proposing the construction of the following two land use scenarios, each in two phases:

Scenario 1
 Phase 1:
o 115,054 sf of mini warehouse (self-storage facility including office space)  Phase 2:
o
o
11,159 sf of strip retail plaza
7,030 sf of fast-food restaurant with drive-through window Scenario 2
 Phase 1:
o
Phase 2:
o
115,054 sf of mini warehouse (self-storage facility including office space) 
54,725 sf of shopping plaza (including 50,000 sf of supermarket and 4,725 sf of retail) Our goal is to obtain comments from Cathedral City staff, to ensure this scoping agreement addresses the analysis requirements for the project, according to the County of Riverside Transportation Analysis Guidelines for Level of Service (LOS) and Vehicle Miles Traveled (VMT), December 2020 (Guidelines).

The preliminary site plans for the Project scenarios are shown in Attachment 1. Rosemount Road does not currently extend to Date Palm Drive. However, it is anticipated that the appropriate dedications and easements will be in place prior to Project opening. Therefore, this report will address the following access by phase:
 Phase 1 – Rosemount Road extension not constructed prior to opening year 2025. Access would be limited to one proposed driveway along Date Palm Drive and one existing driveway along McCallum Way.

Cathedral City City CouncilSeptember 11, 2024

Cathedral City City Council
September 11, 2024