City of Buellton
62 regulatory standards and procedures. (Note: the well is still and will continue to be in use, thus mitigation is not applicable at this time. Source: City Manager.) c. Hazardous Materials Near Schools: The project site is not located within one-quarter mile of an existing or proposed school. The nearest schools are Jonata Middle School, which is about
0.5 miles northeast of the project site; Oak Valley Elementary School is about 0.5 miles north of the project site; and Zaca Pre-School and After School is about 0.5 miles east of the site. No impacts are anticipated.
d. Hazardous Materials Sites: The project site is not on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5. No impacts would occur. e. Public Airport Safety Hazards: No public airports are in the vicinity of the project site. No impacts would occur.
f. Emergency Response/Evacuation: The project site is not subject to an emergency response or evacuation plan, and would not interfere with any emergency response efforts on nearby streets.
No impacts would occur.
g. Wildland Fire Hazards: The site is not in a wildland fire hazard area as identified in the Safety Element of the Buellton General Plan. Impacts would be less than significant.
Findings and Mitigation: The following mitigation measures are required to reduce project impacts related to hazardous materials to a less than significant level:
Mitigation Measures
HAZ-1: Phase I Environmental Site Assessment. Prior to issuance of land use permits, building permits, or the commencement of any grading, site preparation or ground disturbance activities, a limited subsurface investigation shall be conducted at the subject property in order to determine the presence or absence of soil and/or groundwater contamination due to the former dairy farm operation and agricultural use, including the location of the former retention basin..
Monitoring. The Planning Department will verify that the subsurface investigation has been completed and, if necessary, shall monitor any consequent mitigation activities.
HAZ-2: Phase I Environmental Site Assessment. Prior to issuance of grading and/or building permits, a limited subsurface investigation should be conducted in the area of oil-stained soil and gravel within the maintenance shop building Monitoring. The Planning Department will verify that the subsurface investigation has been completed and, if necessary, shall monitor any consequent mitigation activities.
HAZ-3: Phase I Environmental Site Assessment. If on-site USTs are identified during redevelopment activities of the subject property, the USTs should be properly closed and removed following current regulatory procedures and guidelines.
City of Buellton
63 Monitoring: Upon notification of discovery of a potential find, the Planning Department will verify that the UST has been properly closed and removed in accordance with regulatory procedures in place at the time.
HAZ-4: Phase I Environmental Site Assessment. If historical on-site septic systems are identified during redevelopment activities of the subject property, the historical on-site septic systems should be properly closed and removed following current regulatory procedures and guidelines.
Monitoring: Upon notification of discovery of a potential find, the Planning Department will verify that the septic systems have been properly closed and removed in accordance with regulatory procedures in place at the time.
___________________________________________________________ ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
X. HYDROLOGY AND WATER QUALITY -
Would the project:
a) Violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or groundwater quality?
X
b) Substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the basin? X
c) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river or through the addition of impervious surfaces, in a manner which would:
X
i. result in substantial erosion or siltation on- or off-site? X ii. substantially increase the rate or amount of surface runoff in a manner that would result in flooding on- or off-site?
X
iii. create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of
polluted runoff?
X
iv. impede or redirect flood flows? X
d) In flood hazard, tsunami or seiche zones, risk release of pollutants due to project inundation?
X
e) Conflict with or obstruct implementation of a water quality control plan or sustainable groundwater management plan? X
a. and e. RWQCB Standards. The proposed project would discharge wastewater into to the public sewer system via a private on-site sewer lift station for ultimate treatment at the City’s wastewater treatment plant. The Public Works Department will verify that all discharge requirements established by the Regional Water Quality Control Board are satisfied. An industrial discharge permit will be required for any processing or manufacturing uses that may occupy any of the space in the future. In addition, the project is required to, and does incorporate stormwater controls which provides water quality treatment of generated site runoff. Therefore, the impact is considered less than significant.
City of Buellton
64 b. Groundwater Supply. Water is supplied to the City of Buellton from the Buellton Uplands Groundwater Basin, the Santa Ynez River Riparian Basin, and State Water Project (SWP). Water allocation from the SWP varies based on local demand and availability. Therefore, the City’s SWP supplies may fluctuate based on the quantity of water the City needs to meet demand and whether or not it is available from the State. Neither groundwater basin is in a state of overdraft, as the natural recharge rates either exceed the capacity of the basin or exceed the rate of pumping from the basin. Furthermore, previous studies indicate that the Buellton Uplands Groundwater Basin has a net surplus of 800 AFY. The project would create an incrementally increased demand for water, but the City has an adequate supply to accommodate the proposed project, and development at this location is already anticipated under the General Plan. Impacts would be less than significant.
c. Runoff/Erosion and Siltation. Erosion and sedimentation to drainages could occur with grading activities, which could impact water quality. By law, all grading of the site must conform to the erosion control requirements of the National Pollutant Discharge Elimination System (NPDES) regulations. As such, erosion and siltation during the construction period would be minimized and would result in less than significant impacts. The project will also be required to comply with the City’s 2013 Stormwater Ordinance. d. Flood Hazards. Based on National Flood Insurance Rate Maps (FIRM) and General Plan Floodplain maps, the lower portion of the project site is located within the 100-year flood zone.
The Land Use Element of the General Plan designates this area as Open Space (which includes areas subject to flooding), to be used for public open space, parkland and recreation. Proposed uses consist of outdoor sports play fields, multi-use courts, play areas, supplemental parking and an accessory restroom facility (low profile, modular building); these uses are consistent with the Open Space designation. Potential impacts related to project construction and operation would be less than significant. The Public Works Department will review project plans to confirm that proposed grading and project implementation would not adversely affect the flood plain. The site is not located in the vicinity of any body of water that could result in a seiche or tsunami.
The project site is located in a dam failure inundation hazard area as identified in the City’s Safety Element of the General Plan. However, the number of persons using the site would not be significant, and adequate warning would be given to evacuate the site in the event of a possible dam failure.
Findings and Mitigation: Since no significant impacts were identified, no mitigation is required.
ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XI. LAND USE AND PLANNING - Would the
project:
a) Physically divide an established community? X
b) Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project adopted for the purpose of avoiding or mitigating an
environmental effect?
X
City of Buellton
65 a. Physical Division of Established Communities. The proposed project is on the edge of existing development adjacent to an industrial and residential portion of the City. As such, it would not divide an established community. No impacts would occur. b. Policy Consistency. The proposed project is consistent with the applicable policies of the Buellton General Plan and meets the development standards of the Buellton Municipal Code. No habitat or conservation plans exist within the City of Buellton. A policy consistency analysis is provided below.
GENERAL PLAN POLICY CONSISTENCY
The consistency of the proposed project with the applicable General Plan policies is described in the paragraphs below.
Land Use Element
Policy L-5: New development shall not be allowed unless adequate public services are available to serve such new development.
Consistent: Adequate infrastructure exists in the area to serve the proposed project.
Policy L-11: New development shall incorporate a balanced circulation network that provides safe, multi-route access for vehicles, bicycles and pedestrians to neighborhood centers, greenbelts, other parts of the neighborhood and adjacent circulation routes.
Consistent: The project will include bike racks in the parking area to encourage bicycle use, and will maintain access to an existing easement along the Santa Ynez River, which is planned to accommodate a future multi-purpose trail under the City’s 2012 Bicycle and Pedestrian Master Plan.
Policy L-12: All exterior lighting in new development shall be located and designed so as to avoid creating substantial off-site glare, light spillover onto adjacent properties, or upward into the sky. The style, location, and height of the lighting fixtures shall be submitted with building plans and shall be subject to approval by the City prior to issuance of building or grading permits, as appropriate.
Consistent: Sports fields will not be lighted, and any required security lighting will be consistent with this policy and the Community Design Guidelines.
Circulation Element
Policy C-2: Facilities that promote the use of alternate modes of transportation, including bicycle lanes and connections, pedestrian and hiking trails, park-and-ride lots and facilities for public transit shall be incorporated where feasible into new development, and shall be encouraged in existing development.
Consistent: The project will include bike racks to encourage bicycle use, and will maintain access to an existing easement along the Santa Ynez River, which is planned to accommodate a future multi-purpose trail under the City’s 2012 Bicycle and Pedestrian Master Plan.
City of Buellton
66 Policy C-16: The City shall require the provision of adequate off-street parking in conjunction with all new development. Parking shall be located convenient to new development and shall be easily accessible from the street.
Consistent: The proposed on-site parking meets Municipal Code requirements.
Policy C-20: In the process of considering development proposals the City shall use the full amount of discretion authorized in the municipal code and CEQA for setting conditions of approval to require new development to provide bicycle storage and parking facilities on-site as well as reserve an offer of dedication of right-of-way necessary for bikeway improvements.
Consistent: The project will include bike racks to encourage bicycle use, and will maintain access to an existing easement along the Santa Ynez River, which is planned to accommodate a future multi-purpose trail under the City’s 2012 Bicycle and Pedestrian Master Plan.
Conservation and Open Space Element
Policy C/OS-2: Encourage implementation of Best Management Practices to eliminate/minimize the impacts of urban runoff and improve water quality.
Consistent: Development must follow all applicable regulations set forth by the Regional Water Quality Control Board and City of Buellton standards.
Noise Element
Policy N-7: Noise generated by construction activities should be limited to daytime hours to reduce nuisances at nearby noise receptors in accordance with the hours and days set in the adopted Standard Conditions of Approval.
Consistent: The project is subject to the construction restrictions outlined in the Standard Conditions of Approval.
Public Facilities and Services Element
Policy PF-6: All new development shall connect to City water and sewer systems.
Consistent: The project proposes to connect to the City’s water and sewer systems.
Policy PF-9: Engineered drainage plans may be required for development projects which: (a) involve greater than one acre, (b) incorporate construction or industrial activities or have paved surfaces which may affect the quality of stormwater runoff, (c) affect the existing drainage pattern, and/or (d) has an existing drainage problem which requires correction. Engineered drainage plans shall incorporate a collection and treatment system for stormwater runoff consistent with applicable federal and State laws.
Consistent: A portion of the project site is within the 100-year floodplain of the Santa Ynez River, but no structures will be built within that area. Improvements will be constructed under
City of Buellton
67 the direction of the Public Works Department, and will be required to comply with all applicable regulations of the Regional Water Quality Control Board.
Safety Element
Policy S-1: New development (habitable structures including commercial and industrial buildings) shall be set back at least 200 feet from the bank of the Santa Ynez River. A lesser setback may be allowed if a hydro-geologic study by a qualified professional can certify that a lesser setback will provide an adequate margin of safety from erosion and flooding due to the composition of the underlying geologic unit, to the satisfaction of the County Flood Control District, and a lesser setback will not adversely impact sensitive riparian corridors or associated plant and animal habitats, as determined by a qualified biologist, or planned trail corridors.
Passive use trails may be allowed within setback areas.
Consistent: Proposed buildings within the project area will be setback at least 200 feet from the river bank.
Policy S-4: As a condition of approval, continue to require any new development to minimize flooding problems identified by the National Flood Insurance Rate Program.
Consistent: Onsite grading and fill will ensure that any building will be located at least 2 feet above the elevation of the 100-year flood zone.
Policy S-7: All new development shall satisfy the requirements of the California Building Code regarding seismic safety.
Policy S-9: Geologic studies shall be required as a condition of project approval for new development on sites with slopes greater than 10%, and in areas mapped by the Natural Resource Conservation Service (NRCS) as having moderate or high risk of liquefaction, subsidence and/or expansive soils.
Policy S-10: Require that adequate soils, geologic and structural evaluation reports be prepared by registered soils engineers, engineering geologists, and/or structural engineers, as appropriate, for all new development proposals for subdivisions or structures for human occupancy.
Consistent: A soils investigation has been prepared for the project and the project is subject to the California Building Code. The Public Works department will evaluate the project plans and follow the recommendations of any soils investigation they may require for the project.
Policy S-12: New development should minimize erosion hazards by incorporating features into site drainage plans that would reduce impermeable surface area, increase surface water infiltration, and/or minimize surface water runoff during storm events. Such features may include:
Additional landscape areas,
Parking lots with bio-infiltration systems,
Permeable paving designs, and
Storm water detention basins.
City of Buellton
68 Consistent: The Public Works Department will evaluate the proposed project design and require the features described in the policy to the extent feasible and consistent with the proposed use.
Project Consistency with RS-6 and OS Zoning District Standards Development
Standard
Ordinance Requirement Proposed
Project/Consistency
Land Use: Allowed Uses:
See code sections 19.02.110 and 310
Consistent; Proposed
uses would conform to
allowed uses in the RS
and OS zone, per the
Buellton Municipal
Code.
Minimum Lot
Size
RS-6: 6,500 SF minimum for new subdivisions;
OS: no minimum.
n/a
Setbacks:
Front, Side, Rear
BMC 19.04.160.B.4 – Odd-Shaped Lots. The director shall determine the required setbacks, which widths and depths shall approximate as closely as possible the required widths and depths of corresponding setbacks on rectangular lots in the applicable zone districts.
Consistent
Interior Setback 5 ft. minimum between a habitable building and any other building, or as required by the Uniform Building Code (UBC);
n/a
Site Coverage RS: No maximum
OS: None Required
n/a
Open Space RS: None required
OS: n/a
n/a
Height Limit RS: 35 ft. maximum
OS: 25 ft. maximum
Consistent
Parking
(BMC
19.04.142.C)
4-acre Upper Portion
Library/Community rooms (converted residence)
o 3,200 sf @ 1 per 300 SF = 11 spaces
o 4 employees @ 1 per 2 employees = 2 spaces
Wedding/Event facility (existing Barn (7,000 sf,)
o 7,000 sf @ 1/ 300 sf of assembly area = 24 spaces
Outdoor Children’s museum (1,600 sf covered area)
o 1,600 sf @ 1 per 300 sf = 6 spaces
o 2 employees @ 1 per 2 employees = 1 space
Upper Portion Parking Req’t = 44 spaces*
20-acre Lower Portion
Sports Facilities/Playfield
o No Comparable Standard in Code
o Supplemental parking proposed = 40 spaces
Existing Use - SYV Horseback Ride
o Allocation per CUP = 12 spaces
Lower Portion Parking Proposed = 52 spaces*
Est’d Minimum (*) Parking Demand = 96 spaces*
(for Upper and Lower Portion Uses)
Parking Provided in new Lower Lot = 112 spaces
(*) Additional parking required for larger events would use overflow parking area in adjacent field and/or paved parking lots in main River View Park Complex.
n/a
Landscaping BMC 19.02.330 and 19.04.120
not specified for proposed uses.
Source: City of Buellton Municipal Code, Title 19, Zoning n/a
City of Buellton
69 ISSUES: Potentially
Significant
Impact
Less Than
Significant With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XII. MINERAL RESOURCES - Would the
project:
a) Result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state?
X
b) Result in the loss of availability of a locally-important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan?
X
a, b. Mineral Resources: The site does not support significant mineral resources, nor have any been identified in local plans or resource inventories. The proposed project would not result in impacts to mineral resources.
Findings and Mitigation: No impacts would occur, therefore, no mitigation is required.
ISSUES: Potentially
Significant
Impact
Less Than
Significant With
Mitigation
Incorporation
Less Than
Significant
Impact
No
Impact
XIII. NOISE - Would the project result in:
a) 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 ordinance, or applicable standards of other agencies?
X
b) Generation of excessive groundborne vibration or
groundborne noise levels? X
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?
X
The noise section has been prepared by Ambient under contract to the City of Buellton. All data used in the creation of this section is on file at the Buellton Planning Department and is hereby incorporated by reference into this Initial Study. Table numbers, figure numbers and appendix numbers shown in this section correspond to the May 2023 Noise and Groundborne Vibration Assessment prepared by Ambient, and included in in Appendix D to this Initial Study.
Setting
Extensive setting information, including the technical characteristics of noise and the regulatory framework for addressing noise issues, is included in the noise report attached as Appendix D. A brief summary of nearly noise-sensitive receptors and ambient noise levels is included below, and described more fully in Appendix D.
Noise-Sensitive Receptors
Noise-sensitive land uses are generally considered to include those uses where noise exposure could result in health-related risks to individuals, as well as places where quiet is an essential element of their intended purpose. Residential dwellings are of primary concern because of the potential for increased and prolonged exposure of individuals to both interior and exterior noise
City of Buellton
70 levels. Additional land uses such as parks, historic sites, cemeteries, and recreation areas are also considered sensitive to increases in exterior noise levels. Schools, churches, hotels, libraries, and other places where low interior noise levels are essential are also considered noise-sensitive land uses. Noise-sensitive receptors in the project area consist predominantly of residential dwellings generally located north and east of the project site, River View Park is located adjacent to and west of the project site.
Ambient Noise Levels
To document existing ambient noise levels at the project site, short-term ambient noise measurements were conducted on April 20, 2023. Noise measurements were conducted using a SoftdB Piccolo Type II sound-level meter positioned at a height of approximately 5 feet above ground level. Noise measurement equipment was calibrated prior to and upon completion of the noise measurement survey. Measured ambient noise levels ranged from 41.2 to 44.6 dBA Leq.
Based on the ambient noise measurements conducted, the noise environment in the proposed project area is defined primarily by vehicular traffic on area roadways. To a lesser extent, activities at nearby park and residential land uses (e.g., landscape maintenance) also contributes to ambient noise levels in the project area.
Groundborne Vibration
Vibration is like noise in that it involves a source, a transmission path, and a receiver. While vibration is related to noise, it differs in that noise is generally considered to be pressure waves transmitted through air, whereas vibration usually consists of the excitation of a structure or surface. As with noise, vibration consists of amplitude and frequency. A person’s perception of the vibration will depend on their individual sensitivity to vibration, as well as the amplitude and frequency of the source and the response of the system which is vibrating. Vibration can be measured in terms of acceleration, velocity, or displacement. Measurements in terms of velocity are expressed as peak particle velocity (ppv) with units of inches per second (in/sec).
There are no federal, state, or local regulatory standards for groundborne vibration. However, the California Department of Transportation (Caltrans) has developed vibration criteria based on potential structural damage risks and human annoyance, which are summarized in Table 5 of Appendix D.
Significance Thresholds
The CEQA Guidelines do not define the levels at which temporary and permanent increases in ambient noise are considered “substantial.” As discussed previously in this section, a noise level increase of 3 dBA is barely perceptible to most people, an increase of 5 dBA is readily noticeable, and a difference of 10 dBA would be perceived as a doubling of loudness. In accordance with the City of Buellton General Plan noise standards, a significant increase in ambient noise levels would be defined as an increase of 5 dBA or greater for an ambient noise level of less than 60 dB; a 3 dB, or greater, increase in an ambient noise level of 60-65 dB; or a
1.5 dB greater, increase in an ambient noise level above 65 dB (Refer to Table 2). In order for a receptor to have a significant impact there would need to be a substantial increase that would also exceed the City’s applicable noise standards, as summarized in Table 3 of Appendix D.
The CEQA Guidelines also do not define the levels at which groundborne vibration levels would be considered excessive. For this reason, Caltrans recommended groundborne vibration thresholds were used for the evaluation of impacts based on increased potential for structural
City of Buellton
71 damage and human annoyance, as identified in Table 5 of Appendix D. For purposes of this analysis, risks of architectural damage (i.e., minor cracking of plaster walls and ceilings) and significant increases in human annoyance would be considered potentially significant if ground vibration levels at nearby structures would exceed 0.5 in/sec ppv.
Methodology
Construction Impacts
Short-term noise impacts associated with construction activities were analyzed based on typical construction equipment noise levels and distances to the nearest noise-sensitive land usage.
Noise levels were predicted based on representative off-road equipment noise levels derived from the Federal Highway Administration’s (FHWA) Roadway Construction Noise Model based on average equipment usage rates and assuming a noise-attenuation rate of 6 dB per doubling of distance from the source.
Operational Impacts
Noise levels generated by other on-site noise sources, including paly areas, sports fields, and event center activities were assessed based on representative noise levels obtained from similar sources. Noise levels associated with vehicle parking areas were calculated in accordance with FTA’s Transit Noise and Vibration Impact Assessment Guidelines (2018) assuming a reference noise level of 92 dBA SEL. Average-hourly noise levels associated with vehicle parking-related activities were calculated based on the conservative assumption that all parking spaces would be accessed over a one-hour period. Increases in traffic noise levels were qualitatively assessed based, in part, on data derived from the traffic analysis prepared for this project and the City of Buellton General Plan Noise Element (ATE 2023, City of Buellton 2005).
Impact Analysis
a. The analysis that follows is a summarized version of what is included in the noise report included as Appendix D.
Construction-Related Noise Levels
Construction noise typically occurs intermittently and varies depending upon the nature or phase (e.g., land clearing, grading, excavation, and erection) of the activity. Noise generated by construction equipment, including earthmovers, material handlers, and portable generators, can reach high levels. Noise levels commonly associated with off-road equipment anticipated to be used during project construction are summarized in Table 6 of Appendix D. As shown in that table, instantaneous noise levels generated by individual pieces of off-road equipment typically range from approximately 77 to 90 dBA Lmax at 50 feet. Typical operating cycles may involve 2 minutes of full power, followed by 3 or 4 minutes at lower settings. Based on typical off-road equipment usage rates, average-hourly noise levels for individual equipment would be approximately 83 dBA Leq, or less, at 50 feet. Assuming that multiple pieces of equipment could be operating simultaneously, predicted average-hourly noise levels could reach levels of approximately 85 dBA Leq at 50 feet.
The nearest noise-sensitive receivers to the project site include existing residences generally located to the north and east of the project site. Assuming an average-hourly construction noise level of 85 dBA Leq at 50 feet and that construction activities were to occur at the nearest property boundary, predicted noise levels could potentially exceed the City’s noise standard of
City of Buellton
72 75 dBA Leq at nearby residential land uses. With regard to residential land uses, activities occurring during the more noise-sensitive nighttime hours are of particular concern given the potential for sleep disruption and increased levels of annoyance for building occupants. For these reasons, this impact would be considered potentially significant.
Mitigation Measures
Mitigation Measure Noise-1. The following measures shall be implemented to reduce construction-generated noise levels:
a) Construction activity shall be limited to the hours between 7:00 a.m. and 6:00 p.m. on weekdays, and between 9:00 a.m. and 5:00 p.m. on Saturdays (with City approval).
Noise-generating construction activities shall be prohibited on Sundays and state or federal holidays. Construction equipment maintenance shall be limited to the same hours. b) Control noise at all construction sites through the provision of mufflers and the physical separation of machinery maintenance and equipment staging areas from adjacent residential land uses.
c) Construction activities shall comply with the City of Buellton’s noise-control ordinance requirements, including obtaining a permit if deemed necessary.
Significance After Mitigation
Implementation of the above mitigation measures would limit construction activities to less noise-sensitive periods of the day. The use of mufflers would reduce construction equipment noise levels by approximately 10 dBA. With the implementation of the above mitigation measures and given that construction activities would be short-term and intermittent, this impact would be considered less than significant.
Operational Noise Levels
Long-term, permanent increases in ambient noise levels would be primarily associated with potential increases in vehicle traffic on nearby roadways, as well as on-site activities. Noise levels commonly associated with these sources and potential impacts to nearby land uses are discussed as follows:
Vehicular Roadway Traffic. Typically, several thousand vehicles per day would be required before traffic noise levels along roadways would begin to exceed applicable noise standards at nearby noise-sensitive land uses. In addition, a double of vehicle traffic is typically required before a noticeable increase (i.e., 3 dB, or greater) in traffic noise levels would occur.
Implementation of the proposed project would not result in a doubling of vehicle traffic along nearby major roadways. As a result, implementation of the proposed project would not result in a significant increase in traffic noise levels that would exceed applicable noise standards at nearby land uses. Other nearby local roadways in the project vicinity do not have sufficient volumes.
This impact would be considered less than significant.
Compatibility of Proposed Land Uses with Predicted Future Traffic Noise Levels. As previously discussed, ambient noise levels at the project site are primarily influenced by vehicle traffic on area roadways. The nearest major roadway in the project vicinity is State Highway 246. The project site is not located within the predicted noise contours of major roadways (City of Buellton 2008). In addition, based on the ambient noise measurement surveys conducted,
City of Buellton
73 ambient noise levels in the project area would not exceed the City’s “normally acceptable” noise standards for land use compatibility of 65 dBA CNEL/Ldn. This impact would be considered less than significant.
Non-Transportation Noise Sources. Non-transportation noise sources associated with the proposed project having the greatest potential to adversely impact nearby residential land uses would be primarily associated with sports fields, special events, play areas, and vehicle parking lots. Predicted noise levels at the nearest residential land uses associated with these noise sources are summarized in Table 5. As depicted, predicted noise levels associated with these major onsite noise sources would not exceed the City’s daytime noise standard of 65 dBA Leq at the property line of the nearest residential land uses. It is important to note that River View Park operational hours are typically limited to between the daytime hours of 8:00 a.m. and 9:00 p.m. However, in the event that special events were to extend beyond normal operational hours, predicted noise levels at nearby residential land uses could potentially exceed the City’s nighttime noise standard of 45 dBA Leq. To be conservative, this impact is considered potentially significant.
Table 5. Predicted Non-Transportation Noise Levels at Nearest Residential Land Use Source Distance
(feet)1
Noise Level
dBA Leq
without
mitigation 2
Exceeds Noise Standard?
Daytime 3
(65 dBA Leq)
Nighttime 4
(45 dBA Leq)
Sports Fields 400 42 No No
Special Events 190 58 No Yes
Outdoor Park/Children’s Play Area 65 39 No No
Parking Lot (112 spaces) 325 27 No No
1. Based on distance from source center to the nearest residential property line.
2. Predicted noise levels were calculated based on noise measurement surveys at similar land uses. Parking lot noise levels were calculated assuming a maximum of 112 parking spaces at one location with all spaces accessed over a one-hour period.
Parking noise levels were calculated using the FTA Noise Impact Assessment Spreadsheet (2018). Predicted noise levels exceeding applicable noise standard depicted in bold.
3. Daytime is between the hours of 7:00 a.m. and 10:00 p.m.
4. Nighttime is between the hours of 10:00 p.m. and 7:00 a.m.
Mitigation Measures
Mitigation Measure Noise-2. Special events shall be prohibited between the hours of 10:00 p.m. and 7:00 a.m.
Significance after Mitigation
With the implementation of Mitigation Measure Noise-2, this impact would be considered less than significant.
b. Increases in groundborne vibration levels attributable to the proposed project would be primarily associated with short-term construction activities. Groundborne vibration levels associated with representative construction equipment likely to be required during project construction are summarized in Table 8 of Appendix D. As depicted, construction-generated vibration levels would range from approximately 0.003 to 0.21 in/sec ppv at 25 feet. The highest vibration levels would be associated with the use of vibratory rollers.
Implementation of the proposed project would not involve the demolition of existing structures.
Offroad equipment used in the general vicinity of existing onsite and offsite structures, such as
City of Buellton
74 development of the children’s play area, would consist of smaller tractors and equipment. The use of larger heavy-duty equipment and vibratory rollers would not be largely associated with construction activities occurring in the southern portion of the project site associated with construction of the sports fields, as well as, parking areas. The use of larger off-road equipment and vibratory rollers would not be anticipated to occur within 25 feet of existing structures As a result, predicted construction vibration levels at existing structures would not exceed the minimum recommended criteria for structural damage or human annoyance (0.5 and 0.4 in/sec ppv, respectively). This impact would be considered less than significant. c. The project site is not located within 2 miles of a public airport or private airstrip or within an airport land use planning area. The nearest airport is the Santa Ynez Airport, which is located approximately 7 miles east of the project site. The proposed project would not result in exposure of individuals to aircraft noise levels that would exceed applicable noise standards. As a result, this impact would be considered less than significant.
Findings and Mitigation: With proposed mitigation related to construction and operational impacts, all impacts would be less than significant.
ISSUES: Potentially
Significant
Impact
Less Than
Significant With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XIV. POPULATION AND HOUSING --
Would the project:
a) Induce substantial unplanned population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through
extension of roads or other infrastructure)?
X
b) Displace substantial numbers of existing people or
housing, necessitating the construction of replacement
housing elsewhere?
X
a. Population Growth: The site is planned for recreational development, and would not introduce new homes nor facilitate population growth. No impacts would occur. b. Displacement: The site is vacant and as such would not displace any residents. No impacts would occur.
Findings and Mitigation: No impacts would occur, therefore, no mitigation is required.
ISSUES: Potentially
Significant
Impact
Less Than
Significant With
Mitigation
Incorporation
Less Than
Significant
Impact
No Impact
XV. PUBLIC SERVICES - Would the project result
in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services:
a) Fire protection? X
b) Police protection? X
c) Schools? X
d) Parks? X
e) Other public facilities? X
City of Buellton
75 a. Fire Services. The project area is served by Station 31 of the Santa Barbara County Fire Department located at 168 West Highway 246. The station is located within 0.6 miles of the project site and is within the 5-minute response time of the station. Fire protection impacts are considered less than significant.
b. Police Services. The project area is served by the City of Buellton Police Department which is contracted through the Santa Barbara County Sheriff’s Department. One patrol officer is on duty at all times. No significant impacts have been identified with respect to police protection services.
c. School Services. The proposed project is recreational in nature and would not generate students, so no impacts to school would occur.
d. Parks. The project is recreational in nature, and would be generally beneficial with respect to providing facilities that support the function of nearby River View Park. No impacts would occur.
e. Other Public Facilities. No impacts to other public services or facilities have been identified.
Findings and Mitigation: Impacts are considered less than significant, therefore, no mitigation is required.
ISSUES: Potentially
Significant
Impact
Less Than
Significant With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XVI. RECREATION -
a) Would the project increase the use of existing
neighborhood and regional parks or other recreational
facilities such that substantial physical deterioration of the facility would occur or be accelerated?
X
b) Does the project include recreational facilities or require the construction or expansion of recreational facilities that might have an adverse physical effect on the environment? X
a. Demand for Parks and Recreation. The project is recreational in nature, and would be generally beneficial with respect to providing facilities that support the function of nearby River View Park. No impacts would occur.
b. Construction of Recreational Facilities. The project is recreational in nature, and would be generally beneficial with respect to providing facilities that support the function of nearby River View Park. Potential physical impacts on the environment are discussed elsewhere within this Initial Study. No additional adverse impacts would occur.
Findings and Mitigation: No significant impacts would occur, so no mitigation is required.
City of Buellton
76 ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XVII. TRANSPORTATION/TRAFFIC -
Would the project:
a) Conflict with a program, plan, ordinance or policy
addressing the circulation system, including transit,
roadway, bicycle and pedestrian facilities?
X
b) Conflict or be inconsistent with CEQA Guidelines §
15064.3, subdivision (b)? X
c) Substantially increase hazards to a design feature
(e.g., sharp curves or dangerous intersections) or
incompatible uses (e.g., farm equipment)?
X
d) Result in inadequate emergency access? X
a. and b. A trip generation study (March 10, 2023) has been prepared by Associated Transportation Engineers (ATE) for the project, and is included as Appendix E to this Initial Study. The findings of that study are summarized below and incorporated by reference.
Background information in this analysis is also based on previous recent traffic reports prepared for other projects in Buellton. All relevant traffic studies are available for review at the Buellton Planning Department, 107 West Highway 246, Buellton and on the City of Buellton website.
Regional access to the project site is provided by US 101 via the SR 246 interchange. Vehicular access to the upper portion of the project site is proposed via a connection to Valley Dairy Drive.
Vehicular access to the lower portion is proposed through River View Park via Sycamore Drive.
Existing Conditions
Existing Street Network
The circulation system is comprised of regional highways, arterials and collector streets, which are illustrated on Figure 1 of the Transportation Analysis dated July 18, 2017. The following text discusses the major roadways serving the site.
US Highway 101, located east of the Project, is a multi-lane highway serving the California coast between Los Angeles and San Francisco. US Highway 101 is 4-lanes wide in the City of Buellton and provides regional access to the Project.
SR 246, located north of the Project site, is an east-west state highway which extends from the Pacific Ocean west of Lompoc through Buellton, Solvang and Santa Ynez, to SR 154 on the east.
SR 246 is a 4-lane arterial from the western Buellton city limit to Freear Drive near the Eastern city limit.
Avenue of Flags is a north-south arterial roadway which parallels the west side of US Highway 101. Avenue of Flags serves the business area of Buellton between the US 101 SB off-ramp and the Flying Flags RV Resort.
Industrial Way, located just east of the Project site is a north-south collector street which terminates approximately ¼ mile south of SR 246. Access to the Project is proposed via 2 driveways on Industrial Way that will serve the Project and the Terravant Wine building.
City of Buellton
77 Sycamore Drive, located near the Project site, is a north-south collector street which terminates approximately a quarter-mile north and south of SR 246.
Project Trip Generation
The Willemsen Addition is an expansion of River View Park and is intended primarily for use by Buellton area residents. The traffic will generally be local in nature and not intended to be a regional destination and draw for the general public from other areas. Much of the activity and usage will be on weekends, with the possibility that some soccer related activities would occur on weekday afternoons. The AM and PM peak hour traffic will be minimal and will not affect the roadway or intersection operations in the Buellton area.
The proposed library and meeting room in the converted single-family residence will be a relocation of the existing library located in the existing Post Office complex, thus no increase in local traffic volumes.
Average daily trips for each of the activities are based on the probable numbers expected to attend events. A summary of the trips is shown in Table 6.
Table 6. Project Trip Generation
Activity/Use Attendance/Size ADT
Rate Trips
Library N/A N/A N/A
Large Events 150 1 per 2.5 40
Outdoor Activity 40 0.5 20
Horseback 12 2 24
Children’s Museum 40 0.5 20
Soccer 150 1 per 2.5 60
Children’s Museum Addition 20 0.5 10
Total Trips 174
As shown in Table 6, the proposed project is forecast to generate a daily equivalent of 174 average daily trips.
Vehicle Miles Traveled (VMT) Analysis
The Willemsen Addition is considered a “Small Project” under the City of Buellton CEQA Guidelines, thus the VMT impact would be considered less than significant.
Summary
The Willemsen Addition to River View Park Project is forecast to generate a daily equivalent ADT of 174 trips. Recent State law has adopted Vehicle Miles Traveled (VMT) as the new CEQA metric to determine transportation impacts. The Project is considered a “Small Project“ and therefore would have a less than significant VMT impact based on the City of Buellton CEQA guidelines.
City of Buellton
78 Pedestrian and Bicycle Facilities
There are existing pedestrian sidewalks along both sides of Industrial Way from SR 246 and its terminus. Pedestrian sidewalks are also provided on both sides of State Route 246 between Avenue of Flags and Sycamore Drive. The City of Buellton’s bicycle and pedestrian master plan proposes Class II bicycle routes for State Route 246 and Class III bicycle routes for Industrial Way. These facilities will be able to accommodate pedestrian and bicycle traffic generated by the Project.
c. Traffic Hazards. The project would not introduce any traffic hazards, since no new roadways would be built. No impacts would occur.
d. Emergency Access. The proposed project would not block or impair any identified emergency access routes, nor would it generate traffic that could impair such routes. Impacts would be less than significant.
Findings and Mitigation: Project impacts would be less than significant, and no mitigation is required.
ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XVIII. TRIBAL CULTURAL RESOURCES -
Would the project:
a) Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in Public Resources Code section 21074 as either a site,
feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:
i) Listed or eligible for listing in the California Register of Historical Resources, or in a local register of
historical resources as defined in Public Resources
Code section 5020.1(k), or
X
ii) A resource determined by the lead agency, in its
discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Section 5024.1. In
applying the criteria set forth in subdivision (c) of
Public Resource Code Section 5024.1, the lead agency
shall consider the significance of the resource to a
California Native American tribe.
X
a. Tribal Cultural Resources. The property consists of an existing residence, barn and accessory structures as well as a large, predominantly open space area with disturbed land, formerly used as a dairy farm, which is currently vacant and occasionally used as overflow parking for larger events at River View Park. The site is highly disturbed as a result of past flooding events.
Therefore, if any tribal cultural resources were present on the site in the past, it is highly unlikely that they would be present today. Additionally, Mitigation Measure CR-1 in the Cultural Resources section includes a Halt Work Order requirement in the unlikely event that any cultural resources are discovered. The procedures laid out in this mitigation measure would be followed in the event any cultural resources are discovered. The City will follow the required AB52
City of Buellton
79 consultation procedure that addresses this issue, which is a separate process from CEQA. No impacts to tribal cultural resources have been identified.
ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XIX. UTILITIES AND SERVICE SYSTEMS
Would the project:
a) Require or result in the relocation or construction of new or expanded water, wastewater treatment or storm water
drainage, electric power, natural gas, or telecommunications facilities, the construction or relocation of which could cause significant environmental effects?
X
b) Have sufficient water supplies available to serve the project and reasonably foreseeable future development during normal, dry and multiple dry years?
X
c) Result in a determination by the wastewater treatment provider, which serves or may serve the project that it has adequate capacity to serve the project's projected demand in addition to the provider's existing commitments?
X
d) Generate solid waste in excess of state or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals?
X
e) Comply with federal, state, and local statutes and
regulations related to solid waste? X
a. and c. Water and Wastewater Facility and Other Utility Infrastructure. The General Plan already accounts for development of the intensity proposed as part of the project. Therefore, its water consumption and wastewater generation characteristics are already accounted for in the General Plan and associated Environmental Impact Report. There would be no residents at the site. The City has adequate water supply with its three sources of water. The City’s wastewater treatment plant has a total capacity of 650,000 gallons per day, and has a current average daily flow of approximately 450,000 gallons per day. The existing wastewater treatment plant and sewer mains have sufficient capacity to accommodate the project’s flows. Impacts would be less than significant.
The project would not significantly impact nor require the construction of any other utility infrastructure, including power supply and telecommunications. b. Water Supplies. This project would increase the demand for domestic water from the City’s supplies; however, the City has adequate supply to service the project without obtaining new or expanded water entitlements. The City has an estimated water supply capacity of 1,563 acre-feet per year. The estimated water demand for the project is 5.4 acre-feet per year. Impacts would be less than significant.
d. and e. Solid Waste. No significant solid waste impacts have been identified with respect to the proposed project. The project would be required to comply with all applicable state and local regulations with respect to solid waste disposal.
Findings and Mitigation: No significant impacts would occur, so no mitigation is required.
City of Buellton
80 ISSUES: Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
XX. WILDFIRE - Would the project:
a) Substantially impair an adopted emergency response plan or emergency evacuation plan? X
b) Due to slope, prevailing winds, and other factors,
exacerbate wildfire risks, and thereby expose project
occupants to pollutant concentrations from a wildfire or the uncontrolled spread of a wildfire?
X
c) Require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment?
X
d) Expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes? X
a. Emergency Response/Evacuation. The proposed project would not block or impair any identified emergency access routes, nor would it generate traffic that could impair such routes.
The project would not impair any emergency response or evacuation plan, and would not interfere with any emergency response efforts on nearby streets. No impacts would occur. b., c. and d. Wildland Fire Hazards. The site is not in a wildland fire hazard area as identified in the Safety Element of the Buellton General Plan. The site is flat, and vegetation on the site would be well-maintained as part of the project, minimizing wildland fire risk. No fuel breaks or emergency water infrastructure are proposed or necessary to address potential risks. The site is not subject to landslides, and development would occur outside the floodplain, so secondary risks related to slope instability from fires is minimal. If the Fire Department determines the need, the project would be subject to conditions of approval related to reducing fire risk outside of the CEQA process. Impacts would be less than significant.
Findings and Mitigation: No significant impacts would occur, so no mitigation is required.
City of Buellton
81 XXI. MANDATORY FINDINGS OF
SIGNIFICANCE
Potentially
Significant
Impact
Less Than
Significant
With
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact
a) Does the project have the potential to degrade the
quality of the environment, substantially reduce the
habitat of a fish or wildlife species, cause a fish or
wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community,
reduce the number or restrict the range of a rare or
endangered plant or animal or eliminate important
examples of the major periods of California history or
prehistory?
X
b) Does the project have impacts that are individually
limited, but cumulatively considerable? ("Cumulatively
considerable" means that the incremental effects of a
project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? X
c) Does the project have environmental effects that will cause substantial adverse effects on human beings, either directly or indirectly?
X
a. Impacts related to drainage and water quality were determined to be less than significant.
Compliance with stormwater and other water quality regulations ensures that the project’s impacts are not cumulatively considerable. Potential impacts related to biological resources and cultural resources were identified, however the appropriate mitigation measures have been included to mitigate these impacts to a less than significant level and ensure that there are no cumulatively considerable impacts. The project is also required to comply with federal, state and local laws that address these resources. Standard conditions of approval would also apply. There are no important examples of major period of California history or prehistory that will be impacted by this project.
b. No potential cumulative impacts were identified for the project. c. The incorporation of required mitigation measures and adherence to General Plan policies would reduce all impacts that have the potential to affect human beings to a less than significant level.
City of Buellton
82 Appendix A
Project Vicinity Map
City of Buellton
83
City of Buellton
84 Appendix B
Project Site Plans
Existing Site Conditions
Phase 1 – Proposed Uses
Phase 2 – Proposed Uses
Phases 1 and 2 Combined
> > > > HORSE STABLES (EXISTING) MEADOW VIEW DRIVE RIVER VIEW PARK DAIRYLAND RD VALLEY DAIRY RD MARK DATE DESCRIPTION BY PROJ: www.tetratech.com CHKD: DRWN: DESN:
1/24/2024 10:03:46 PM - O:\PROJECTS\SAN LUIS OBISPO\155059\200-155059-20003\CAD\SHEETFILES\WILLEMSEN-HORSE STABLES\EXHTS\WILLEMSEN PROPERTY PROP LAND USE.DWG - LARASH, NICK 1 A 2 3 4 5 6 7 BCDEF Bar Measures 1 inch, otherwise drawing not to scale Copyright: Tetra Tech SHEET OF 14 CITY OF BUELLTON PLANS PREPARED UNDER THE SUPERVISON OF BRIDGET ELLIOTT RCE 84723 EXP 03/31/24 PROJECT No. XXX-XXX-XXX XXX-XXXX-XXXX UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA BEFORE YOU DIG DIAL TOLL FREE AT LEAST TWO DAYS 811 290 Valley Station Dr, Suite 102 Buellton, CA 93427 TEL 805.542.9052 N EH-01 WILLEMSEN PROJECT EXISTING SITE CONDITIONS OF OFBE 6 1992 SHEET 1 OF 4 EXISTING TREES SHED EXISTING TREES BARN (HISTORIC) RESIDENCE 0SCALE:35' 70' 140' 1" = 70' 1. EXISTING ACCESS ROAD 2. HORSE STABLES 3. HIKING TRAIL 4. BUILDING FOOTPRINT ACCESS ROAD 14 4 4 2 1 1 1 1 1 3 1324 LEGEND: DRAINAGE SWALE APN 099-670-005 APN 099-670-004 APN 099-660-035 APN 099-68 CULVERT OUTLET
> > > > HORSE STABLES (EXISTING) MEADOW VIEW DRIVE RIVER VIEW PARK DAIRYLAND RD VALLEY DAIRY RD x x x x x x T2 T10 T3 T4 T5 T9 T6 T11 T12 T1 T7 T8 PL > > SD PL APN 099-66-035 1.43 ACRES UTILIZED DRAINAGE BASINAPN 990-670-005 3.10 ACRES UTILIZED 0.17 ACRES 0.158 ACRES 0.056 ACRES MARK DATE DESCRIPTION BY PROJ: www.tetratech.com CHKD: DRWN: DESN:
1/24/2024 10:05:51 PM - O:\PROJECTS\SAN LUIS OBISPO\155059\200-155059-20003\CAD\SHEETFILES\WILLEMSEN-HORSE STABLES\EXHTS\WILLEMSEN PROPERTY PROP LAND USE.DWG - LARASH, NICK 1 A 2 3 4 5 6 7 BCDEF Bar Measures 1 inch, otherwise drawing not to scale Copyright: Tetra Tech SHEET OF 14 CITY OF BUELLTON PLANS PREPARED UNDER THE SUPERVISON OF BRIDGET ELLIOTT RCE 84723 EXP 03/31/24 PROJECT No. XXX-XXX-XXX XXX-XXXX-XXXX UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA BEFORE YOU DIG DIAL TOLL FREE AT LEAST TWO DAYS 811 290 Valley Station Dr, Suite 102 Buellton, CA 93427 TEL 805.542.9052 0SCALE:35' 70' 140' 1" = 70' N EH-02 WILLEMSEN PROJECT PHASE 1 202 DAIRYLAND ROAD OF OFBE 6 1992 SHEET 2 OF 4 PHASE 1: · PROPOSED PARKING LIBRARY/COMMUNITY BUILDING · EVENT FACILITY · CHILDREN MUSEUM NOTE (TENANT AND STRUCTURAL IMPROVEMENTS, NO FOOTPRINT CHANGE) EXISTING TREES CHILDREN'S MUSEUM PHASE 1 0.8 ACRES UTILIZED PROPOSED PARKING 2 3 4 5 76 1 8 9 10 11 12 13 LEGEND: 1 CHILDREN'S MUSEUM BUILDING 2 MUD KITCHEN 9 DINO DIG 3 DIRT ZONE 4 OUTDOOR CLASSROOM 5 POTTING TABLES 6 GREEN HOUSE 7 PLAY HOUSE 11 CHECK IN KIOSK OFFICE 12 HAND WASHING STATION 13 SOUND CAVE 14 RAIN GAZEBO & WATER RILL 10 5 CAR PARKING SPACES 1415 TEMPORARY ACCESS ROAD TO PARKING 8 FAIRY TEA HOUSE 15 ACCESS ROAD 15 NEW SEWER LATERAL 16 EVENT FACILITY TOTAL 4.71 ACRES 16 17 17 LIBRARY/COMMUNITY BUILDING 18 18 TEMPORARY ACCESS ROAD # TREE TRUNCK DIAMETER(ft) CANOPY DIAMETER (ft) T1 OAK 3' 15' T2 COTTONWOOD 6' 15' T3 EUCALYPTUS 4' 12' T4 EUCALYPTUS 2' 6' T5 OAK 8' 6' T6 PEPPER 1' 5' T7 OAK 3' 15' T8 PINE 1' 11' T9 PEPPER 1' 15' T10 PEPPER 1' 15' T11 PEPPER 2' 20' T12 PEPPER 3' 30' APN 990-670-004 0.23 ACRES UTILIZED
> > > > HORSE STABLES (EXISTING) MEADOW VIEW DRIVE RIVER VIEW PARK DAIRYLAND RD VALLEY DAIRY RD GB GB PL PL PL PL PL PL 50' SMALL SIZE 7 vs 7 FULL SIZE 11 vs 11 FULL SIZE 11 vs 11 SMALL SIZE 7 vs 7 50' MARK DATE DESCRIPTION BY PROJ: www.tetratech.com CHKD: DRWN: DESN:
1/24/2024 10:12:29 PM - O:\PROJECTS\SAN LUIS OBISPO\155059\200-155059-20003\CAD\SHEETFILES\WILLEMSEN-HORSE STABLES\EXHTS\WILLEMSEN PROPERTY PROP LAND USE.DWG - LARASH, NICK 1 A 2 3 4 5 6 7 BCDEF Bar Measures 1 inch, otherwise drawing not to scale Copyright: Tetra Tech SHEET OF 14 CITY OF BUELLTON PLANS PREPARED UNDER THE SUPERVISON OF BRIDGET ELLIOTT RCE 84723 EXP 03/31/24 PROJECT No. XXX-XXX-XXX XXX-XXXX-XXXX UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA BEFORE YOU DIG DIAL TOLL FREE AT LEAST TWO DAYS 811 290 Valley Station Dr, Suite 102 Buellton, CA 93427 TEL 805.542.9052 N EH-03 WILLEMSEN PROJECT PHASE 2 202 DAIRYLAND ROAD OF OFBE 6 1992 SHEET 3 OF 4 PHASE 2 · SPORTS FIELDS · PAVED ACCESS · SUPPLEMENTAL PARKING · ACCESS ROAD EXISTING TREES PAVED ACCESS AREA 1.43 ACRES CHILDREN'S MUSEUM (PHASE 2) 0.2 ACRES UTILIZED SUPPLEMENTAL PARKING 0SCALE:35' 70' 140' 1" = 70' LEGEND: TOTAL 9.11 ACRES APN 990-067-005 8.55 ACRES UTILIZED APN 990-067-004 0.96 ACRES UTILIZED APN 990-068 0.47 ACRES UTILIZED ACCESS ROAD CULVERT OUTLET WITH SEASONAL VEGETATION SPORTS FILEDS AREA 8.03 ACRES
> > > > HORSE STABLES (EXISTING) MEADOW VIEW DRIVE RIVER VIEW PARK DAIRYLAND RD VALLEY DAIRY RD GB GB x x x x x x T2 T10 T3 T4 T5 T9 T6 T11 T12 T1 T7 T8 PL GB GB GB GB GB GB
GB
GB
GB
SD PL APN 099-66-035 1.43 ACRES UTILIZED DRAINAGE BASIN PL PL PL APN 990-670-005 3.10 ACRES UTILIZED PL PL PL 0.17 ACRES 0.158 ACRES 0.056 ACRES 50' SMALL SIZE 7 vs 7 FULL SIZE 11 vs 11 FULL SIZE 11 vs 11 SMALL SIZE 7 vs 7 50' MARK DATE DESCRIPTION BY PROJ: www.tetratech.com CHKD: DRWN: DESN:
1/24/2024 10:14:59 PM - O:\PROJECTS\SAN LUIS OBISPO\155059\200-155059-20003\CAD\SHEETFILES\WILLEMSEN-HORSE STABLES\EXHTS\WILLEMSEN PROPERTY PROP LAND USE.DWG - LARASH, NICK 1 A 2 3 4 5 6 7 BCDEF Bar Measures 1 inch, otherwise drawing not to scale Copyright: Tetra Tech SHEET OF 14 CITY OF BUELLTON PLANS PREPARED UNDER THE SUPERVISON OF BRIDGET ELLIOTT RCE 84723 EXP 03/31/24 PROJECT No. XXX-XXX-XXX XXX-XXXX-XXXX UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA BEFORE YOU DIG DIAL TOLL FREE AT LEAST TWO DAYS 811 290 Valley Station Dr, Suite 102 Buellton, CA 93427 TEL 805.542.9052 N EH-04 WILLEMSEN PROJECT PHASE 1 & PHASE 2 OF OFBE 6 1992 SHEET 4 OF 4 SUPPLEMENTAL PARKING 0SCALE:35' 70' 140' 1" = 70' CHILDREN'S MUSEUM PHASE 1 0.8 ACRES UTILIZED PHASE 1: · PROPOSED PARKING LIBRARY/COMMUNITY BUILDING · EVENT FACILITY · CHILDREN MUSEUM NOTE (TENANT AND STRUCTURAL IMPROVEMENTS, NO FOOTPRINT CHANGE) EXISTING TREES 23 4 5 76 1 8 9 10 11 12 13 LEGEND: 1 CHILDREN'S MUSEUM BUILDING 2 MUD KITCHEN 9 DINO DIG 3 DIRT ZONE 4 OUTDOOR CLASSROOM 5 POTTING TABLES 6 GREEN HOUSE 7 PLAY HOUSE 11 CHECK IN KIOSK OFFICE 12 HAND WASHING STATION 13 SOUND CAVE 14 RAIN GAZEBO & WATER RILL 10 5 CAR PARKING SPACES 1415 TEMPORARY ACCESS ROAD TO PARKING 8 FAIRY TEA HOUSE 15 ACCESS ROAD 15 16 EVENT FACILITY TOTAL 4.71 ACRES 16 17 LIBRARY/COMMUNITY BUILDING 18 TEMPORARY ACCESS ROAD PHASE 2 · SPORTS FIELDS · PAVED ACCESS · SUPPLEMENTAL PARKING · ACCESS ROAD TOTAL 9.11 ACRES SPORTS FILEDS AREA 8.03 ACRES CHILDREN MUSEUM PHASE 2 0.2 ACRES UTILIZED 0.96 ACRES APN 990-068 0.47 ACRES UTILIZED ACCESS ROAD 17 18 PROPOSED PARKING # TREE TRUNCK DIAMETER(ft) CANOPY DIAMETER (ft) T1 OAK 3' 15' T2 COTTONWOOD 6' 15' T3 EUCALYPTUS 4' 12' T4 EUCALYPTUS 2' 6' T5 OAK 8' 6' T6 PEPPER 1' 5' T7 OAK 3' 15' T8 PINE 1' 11' T9 PEPPER 1' 15' T10 PEPPER 1' 15' T11 PEPPER 2' 20' T12 PEPPER 3' 30' CULVERT OUTLET WITH SEASONAL DRAINAGE
City of Buellton
85 Appendix C
Air Quality and Greenhouse Gas Assessment, May 2023
AI R QU AL IT Y &
GR E E N H O U S E GAS
I M P A C T AS S ES SM E N T
F O R
CITY OF BUELLTON’S
WILLEMSEN ADDITION TO
RIVER VIEW PARK
MAY 2023
PREPARED BY:
75 SOUTH HIGUERA ST. SUITE 105
SAN LUIS OBISPO, CA 93401
TEL: 805.226.2727
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
TABLE OF CONTENTS
Introduction ..................................................................................................................................................................................... 1 Project Description .......................................................................................................................................................................... 1 Air Quality......................................................................................................................................................................................... 3 Existing Setting............................................................................................................................................................................. 3 Criteria Air Pollutants .................................................................................................................................................................. 4 Odors........................................................................................................................................................................................... 4 Toxic Air Contaminants .............................................................................................................................................................. 6 Regulatory Framework............................................................................................................................................................... 7 Greenhouse Gases and Climate Change.................................................................................................................................. 16 Existing Setting........................................................................................................................................................................... 16 Regulatory Framework............................................................................................................................................................. 19 Impact Analysis......................................................................................................................................................................... 24 References..................................................................................................................................................................................... 27
LIST OF TABLES
Table AQ-1. State and Federal Criteria Air Pollutant Effects and Sources.................................................................................. 5 Table AQ-2. Santa Barbara County Attainment/Nonattainment Classification Summary........................................................ 8 Table AQ-3. Annual Construction Emissions without Mitigation................................................................................................. 11 Table AQ-4. Daily Operational Emissions Without Mitigation ..................................................................................................... 13 Table GHG-1. Global Warming Potential for Greenhouse Gases ............................................................................................. 17 Table GHG-2. Construction-Generated GHG Emissions without Mitigation ............................................................................. 25 Table GHG-3. Operational GHG Emissions without Mitigation................................................................................................... 26
LIST OF FIGURES
Figure GHG-1. California GHG Emissions Inventory by Sector (2020) ........................................................................................ 18 Figure GHG-2. California Black Carbon Emissions Inventory (Year 2013).................................................................................. 18
APPENDICES
Appendix A: Emissions Modeling
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
LIST OF COMMON TERMS & ACRONYMS
AAQS Ambient Air Quality Standards
AB Assembly Bill
ACM Asbestos-Containing Material
APS Alternative Planning Strategy
AQAP Air Quality Attainment Plan
ARB California Air Resources Board
BSC Building Standards Commission
C2F6 Perfluoroethane
C3F8 Perfluoropropane
C4F10 Perfluorobutane
C4F8 Perfluorocyclobutane
C5F12 Perfluoropentane
C6F14 Perfluorohexane
CAA Clean Air Act
CAAQS California Ambient Air Quality Standards
CalEEMod California Emissions Estimator Model
CalEPA California Environmental Protection Agency
CBC California Building Code
CCAA California Clean Air Act
CCR California Code of Regulations
CEQA California Environmental Quality Act
CF4 Perfluoromethane
CH4 Methane
CNG Compressed Natural Gas
CO Carbon Monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent
DPM Diesel-Exhaust Particulate Matter or Diesel-Exhaust PM EIR Environmental Impact Report
EV Electric Vehicle
FCAA Federal Clean Air Act
GHG Greenhouse Gases
GWP Global Warming Potential
HAP Hazardous Air Pollutant
HFC Hydrofluorocarbons
ITE Institute of Transportation Engineers
LNG Liquefied Natural Gas
LOS Level of Service
MMT Million Metric Tons
MPO Metropolitan Planning Organization
MTCO2e Million Metric Tons of Carbon Dioxide
N2O Nitrous Oxide
NAAQS National Ambient Air Quality Standards
NESHAPs National Emission Standards for HAPs
NF3 Nitrogen Trifluoride
NHTSA National Highway Traffic Safety Administration
NO2 Nitrogen Dioxide
NOA Naturally-Occurring Asbestos
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
NOx Oxides of Nitrogen
O3 Ozone
Pb Lead
PFC Perfluorocarbons
PM Particulate Matter
PM10 Particulate Matter (less than 10 μm)
PM2.5 Particulate Matter (less than 2.5 μm)
ppb Parts per Billion
ppm Parts per Million
PV Photovoltaic
ROC Reactive Organic Compounds
ROG Reactive Organic Gases
RTP Regional Transportation Plan
SAFE Safer Affordable Fuel-Efficient
SB Senate Bill
SBCAG Santa Barbara County Association of Governments
SBCAPCD Santa Barbara County Air Pollution Control District SCCAB South Central Coast Air Basin
SCS Sustainable Communities Strategy
SF6 Sulfur Hexafluoride
SLCP Short-lived Climate Pollutant
SO2 Sulfur Dioxide
SP Service Population
TAC Toxic Air Contaminant
U.S. EPA United State Environmental Protection Agency
VMT Vehicle Miles Traveled
μg/m3 Micrograms per cubic meter
μm Micrometer
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
1 INTRODUCTION
This report provides an analysis of noise impacts associated with the City of Buellton’s Willemsen Addition to River View Park. This report also provides a summary of existing conditions in the project area and the applicable regulatory framework pertaining to air quality and climate change.
PROJECT DESCRIPTION
The Project consists of a Final Development Plan (22-FDP-XX) to construct a multi-purpose recreational and event facility on a 24+/- acre site (APNs 099-660-032, -033, -034, -035, & 099-670-005). The site is divided into a 4-acre upper portion and a 20-acre lower portion. Figure 1 illustrates the Project site plan.
The upper portion (about 4 acres) contains an existing residence (3,200 square feet), an existing dairy barn (designated as a historic structure by the City of Buellton), and an existing 1,600 square foot open storage shed. The lower portion (about 20 acres) is vacant (except for the 1.25-acre horseback riding facility already operating). Was formerly used for hay farming (at least 8-10 years ago).
Proposed uses for the upper portion consist of:
• Library (approximately 2,430 square feet) and Community rooms (1,565 square feet) in converted existing residence - Given library facilities in Solvang, Goleta, Lompoc, and Los Alamos, library patrons are expected to primarily be residents of Buellton and nearby rural residents. • Wedding/Event facility in Barn (about 7,000 square feet) includes warming kitchen and 2nd floor apartment space (up to 150 persons per event). These events are expected to occur about 1 per month;
• Outdoor active play area “Children’s Museum” - about 30,00 square feet of area, including 1,600 square feet of covered space (current open storage shed). Restroom facilities and play equipment to be installed. This use is intended to serve the general Santa Ynez Valley population.
Proposed uses for the lower portion consist of:
• 1.25-acre horseback riding center (horse corrals and small office structure w/ storage. Approximately 24 trips per day maximum anticipated;
• Paved parking lot (about 1.5 acres) with about 112 parking spaces to serve upper and lower portion uses. Future restroom facility. Parking area to be reached by new access road across (nonjurisdictional) drainage channel from River View Park east parking lot; • Possible 10,000 square feet expansion of Children’s Museum play area • Sport facilities/play fields (about 15 acres) with parking and restroom facilities: 2 full sized soccer fields, of which 1 will not be available for open play, but only used for infrequent club events, 1 midsized field, and 1 small sized soccer field, baseball/softball field, 2 pickleball/multi-use courts, some supplemental parking (40 spaces) and restroom facility - non-club fields and courts will primarily serve local valley recreational needs. Soccer fields could accommodate small tournaments (4 per year max anticipated). Approximately 2,150 trips generated per tournament over the course of an 8 to 10-hour day. Tournaments held in this location are expected to relocate here from other less desirable sites in the Santa Ynez Valley that are currently used for soccer tournaments; • Assume about 2.5 acres to remain undeveloped (berm along south boundary of property/well area).
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
2 Figure 1. Proposed Project Site Plan
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
3 AIR QUALITY
Existing Setting
Nearby Land Uses
Land uses located near the project site include a mix of commercial, medical, and residential land uses. The nearest commercial land uses are located approximately 50 feet to the north and approximately 100 feet to the east (Home Motors). The nearest medical land uses are located approximately 600 feet to the south. The nearest residential land uses include multi-family residences located approximately 400 feet to the north.
Meteorological Conditions
The City of Buellton is located in the South Central Coast Air Basin (SCCAB), which includes all of San Luis Obispo, Santa Barbara, and Ventura counties and is within the jurisdiction of the SBCAPCD.
The air quality in the SCCAB is influenced by both local topography and meteorological conditions. Surface and upper-level wind flow vary both seasonally and geographically in the SCCAB and inversion conditions common to the area can affect the vertical mixing and dispersion of pollutants. The prevailing wind flow patterns in the SCCAB are not necessarily those that cause high ozone values. High ozone values are often associated with atypical wind flow patterns. Meteorological and topographical influences are important to air quality in Santa Barbara County and throughout the SCCAB. Semi-permanent high pressure that lies off the Pacific Coast generally leads to limited rainfall, with warm, dry summers and relatively damp winters.
Maximum summer temperatures average about 70 degrees Fahrenheit near the coast and in the high 80s to 90s inland. During winter, average minimum temperatures range from the 40s along the coast to the 30s inland. Additionally, cool, humid, marine air causes frequent fog and low clouds along the coast, generally during the night and morning hours in the late spring and early summer. The fog and low clouds can persist for several days until broken up by a change in the weather pattern (SBCAPCD 2001).
In the northern portion of the county (north of the ridgeline of the Santa Ynez Mountains), the sea breeze (from sea to land) is typically northwesterly throughout the year while the prevailing sea breeze in the southern portion of the county is from the southwest. During summer, these winds are stronger and persist later into the night. At night, the sea breeze weakens and is replaced by light land breezes (from land to sea). The alternation of the land-sea breeze cycle can sometimes produce a "sloshing" effect, where pollutants are swept offshore at night and subsequently carried back onshore during the day. This effect is exacerbated during periods when wind speeds are low (SBCAPCD 2001).
The terrain around Point Conception, combined with the change in orientation of the coastline from northsouth to east-west can cause counterclockwise circulation (eddies) to form east of the Point. These eddies fluctuate temporally and spatially, often leading to highly variable winds along the southern coastal strip.
Point Conception also marks the change in the prevailing surface winds from northwesterly to southwesterly (SBCAPCD 2001).
Santa Ana winds are northeasterly winds that occur primarily during fall and winter, but occasionally in spring.
These are warm, dry winds blown from the high inland desert that descend down the slopes of a mountain range. Wind speeds associated with Santa Ana’s are generally 15-20 mph, though they can sometimes reach speeds in excess of 60 mph. During Santa Ana conditions, pollutants emitted in Santa Barbara, Ventura County, and the South Coast Air Basin (the Los Angeles region) are moved out to sea. These pollutants can then be moved back onshore into Santa Barbara County in what is called a "post-Santa Ana condition." The effects of the post-Santa Ana condition can be experienced throughout the county. Not all post-Santa Ana conditions, however, lead to high pollutant concentrations in Santa Barbara County (SBCAPCD 2001).
Upper-level winds (measured at Vandenberg Air Force Base once each morning and afternoon) are generally from the north or northwest throughout the year, but occurrences of southerly and easterly winds do occur in winter, especially during the morning. Upper-level winds from the south and east are infrequent during the summer. When they do occur during summer, they are usually associated with periods of high ozone levels. Surface and upper-level winds can move pollutants that originate in other areas into the county (SBCAPCD 2001).
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
4 Surface temperature inversions (0-500 ft) are most frequent during the winter, and subsidence inversions (1000-2000 ft) are most frequent during the summer. Inversions are an increase in temperature with height and are directly related to the stability of the atmosphere. Inversions act as a cap to the pollutants that are emitted below or within them and ozone concentrations are often higher directly below the base of elevated inversions than they are at the earth’s surface. For this reason, elevated monitoring sites will occasionally record higher ozone concentrations than sites at lower elevations. Generally, the lower the inversion base height and the greater the rate of temperature increase from the base to the top, the more pronounced effect the inversion will have on inhibiting vertical dispersion. The subsidence inversion is very common during summer along the California coast and is one of the principal causes of air stagnation (SBCAPCD 2001).
Poor air quality is usually associated with "air stagnation" (high stability/restricted air movement). Therefore, it is reasonable to expect a higher frequency of pollution events in the southern portion of the county where light winds are frequently observed, as opposed to the northern part of the county where the prevailing winds are usually strong and persistent (SBCAPCD 2001).
Criteria Air Pollutants
For the protection of public health and welfare, the Clean Air Act (CAA) required that the United States Environmental Protection Agency (U.S. EPA) establish National Ambient Air Quality Standards (NAAQS) for various pollutants. These pollutants are referred to as "criteria" pollutants because the U.S. EPA publishes criteria documents to justify the choice of standards. These standards define the maximum amount of an air pollutant that can be present in ambient air without harm to the public’s health. An ambient air quality standard is generally specified as a concentration averaged over a specific time period, such as one hour, eight hours, 24 hours, or one year. The different averaging times and concentrations are meant to protect against different exposure effects. The CAA allows states to adopt additional or more health-protective standards. The air quality regulatory framework and ambient air quality standards are discussed in greater detail later in this report.
Human Health & Welfare Effects
Common air pollutants and associated adverse health and welfare effects are summarized in Table AQ-1.
Within the SCCAB, the air pollutants of primary concern, with regard to human health, include ozone (O3), particulate matter (PM), and carbon monoxide (CO). As depicted in Table AQ-1, exposure to increased pollutant concentrations of O3, PM, and CO can result in various heart and lung ailments, cardiovascular and nervous system impairment, and death.
Odors
Typically, odors are generally regarded as an annoyance rather than a health hazard. However, manifestations of a person’s reaction to foul odors can range from psychological (i.e., irritation, anger, or anxiety) to the physiological, including circulatory and respiratory effects, nausea, vomiting, and headache.
Neither the state nor the federal governments have adopted rules or regulations for the control of odor sources. The SBCAPCD does not have an individual rule or regulation that specifically addresses odors; however, odors would be applicable to SBCAPCD Rule 303, Nuisance. Any actions related to odors would be based on citizen complaints to local governments and the SBCAPCD. The SBCAPCD recommends that odor impacts be addressed in a qualitative manner. Such analysis shall determine if the project results in excessive nuisance odors, as defined under the California Code of Regulations, Health & Safety Code Section 41700, air quality public nuisance.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
5 Table AQ-1. State and Federal Criteria Air Pollutant Effects and Sources Pollutant Principal Health and Atmospheric Effects Typical Sources Ozone (O3) High concentrations irritate lungs. Long-term exposure may cause lung tissue damage and
cancer. Long-term exposure damages plant
materials and reduces crop productivity.
Precursor organic compounds include many
known toxic air contaminants. Biogenic VOC
may also contribute.
Low-altitude ozone is almost entirely formed from
reactive organic gases/volatile organic compounds
(ROG or VOC) and nitrogen oxides (NOx) in the
presence of sunlight and heat. Common precursor
emitters include motor vehicles and other internal
combustion engines, solvent evaporation, boilers,
furnaces, and industrial processes.
Respirable
Particulate
Matter (PM10)
Irritates eyes and respiratory tract. Decreases
lung capacity. Associated with increased
cancer and mortality. Contributes to haze and
reduced visibility. Includes some toxic air
contaminants. Many toxic and other aerosol
and solid compounds are part of PM10.
Dust- and fume-producing industrial and agricultural
operations; combustion smoke & vehicle exhaust;
atmospheric chemical reactions; construction and
other dust-producing activities; unpaved road dust
and re-entrained paved road dust; natural sources.
Fine
Particulate
Matter
(PM2.5)
Increases respiratory disease, lung damage,
cancer, and premature death. Reduces
visibility and produces surface soiling. Most
diesel exhaust particulate matter – a toxic air
contaminant – is in the PM2.5 size range. Many
toxic and other aerosol and solid compounds
are part of PM2.5.
Combustion including motor vehicles, other mobile
sources, and industrial activities; residential and
agricultural burning; also formed through
atmospheric chemical and photochemical
reactions involving other pollutants including NOx,
sulfur oxides (SOx), ammonia, and ROG.
Carbon
Monoxide
(CO)
CO interferes with the transfer of oxygen to the
blood and deprives sensitive tissues of oxygen.
CO also is a minor precursor for photochemical
ozone. Colorless, odorless.
Combustion sources, especially gasoline-powered
engines and motor vehicles. CO is the traditional
signature pollutant for on-road mobile sources at the
local and neighborhood scale.
Nitrogen
Dioxide (NO2)
Irritating to eyes and respiratory tract. Colors
atmosphere reddish-brown. Contributes to
acid rain & nitrate contamination of
stormwater. Part of the “NOx” group of ozone
precursors.
Motor vehicles and other mobile or portable
engines, especially diesel; refineries; industrial
operations.
Sulfur Dioxide
(SO2)
Irritates respiratory tract; injures lung tissue. Can
yellow plant leaves. Destructive to marble, iron,
steel. Contributes to acid rain. Limit’s visibility.
Fuel combustion (especially coal and high-sulfur oil),
chemical plants, sulfur recovery plants, metal
processing; some natural sources like active
volcanoes. Limited contribution possible from heavyduty diesel vehicles if ultra-low sulfur fuel not used.
Lead (Pb) Disturbs gastrointestinal system. Causes
anemia, kidney disease, and neuromuscular
and neurological dysfunction. Also, a toxic air
contaminant and water pollutant.
Lead-based industrial processes like battery
production and smelters. Lead paint, leaded
gasoline. Aerially deposited lead from older gasoline
use may exist in soils along major roads.
VisibilityReducing
Particles
(VRP)
Reduces visibility. Produces haze.
NOTE: not directly related to the Regional Haze
program under the Federal Clean Air Act,
which is oriented primarily toward visibility issues
in National Parks and other “Class I” areas.
However, some issues and measurement
methods are similar.
See particulate matter above.
May be related more to aerosols than to solid
particles.
Sulfate Premature mortality and respiratory effects.
Contributes to acid rain. Some toxic air
contaminants attach to sulfate aerosol
particles.
Industrial processes, refineries and oil fields, mines, natural sources like volcanic areas, salt-covered dry
lakes, and large sulfide rock areas.
Hydrogen
Sulfide (H2S)
Colorless, flammable, poisonous. Respiratory
irritant. Neurological damage and premature
death. Headache, nausea. Strong odor.
Industrial processes such as: refineries and oil fields, asphalt plants, livestock operations, sewage
treatment plants, and mines. Some natural sources
like volcanic areas and hot springs.
Vinyl
Chloride
Neurological effects, liver damage, cancer.
Also considered a toxic air contaminant.
Industrial processes.
Source: CAPCOA 2021
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
6 Toxic Air Contaminants
Toxic air contaminants (TACs) are air pollutants that may cause or contribute to an increase in mortality or serious illness, or which may pose a hazard to human health. TACs are usually present in minute quantities in the ambient air, but due to their high toxicity, they may pose a threat to public health even at very low concentrations. Because there is no threshold level below which adverse health impacts are not expected to occur, TACs differ from criteria pollutants for which acceptable levels of exposure can be determined and for which state and federal governments have set ambient air quality standards. TACs, therefore, are not considered “criteria pollutants” under either the Federal Clean Air Act (FCAA) or the California Clean Air Act (CCAA) and are thus not subject to National or State Ambient Air Quality Standards (AAQS). TACs are not considered criteria pollutants in that the FCAA and CCAA do not address them specifically through the setting of National or State AAQS. Instead, the U.S. EPA and California Air Resources Board (ARB) regulate Hazardous Air Pollutants (HAPs) and TACs, respectively, through statutes and regulations that generally require the use of the maximum or best available control technology to limit emissions. In conjunction with District rules, these federal and state statutes and regulations establish the regulatory framework for TACs. At the national level, the U.S. EPA has established National Emission Standards for HAPs (NESHAPs), in accordance with the requirements of the FCAA and subsequent amendments. These are technology-based source-specific regulations that limit allowable emissions of HAPs.
Within California, TACs are regulated primarily through the Tanner Air Toxics Act (Assembly Bill [AB] 1807) and the Air Toxics Hot Spots Information and Assessment Act of 1987 (AB 2588). The Tanner Act sets forth a formal procedure for ARB to designate substances as TACs. This includes research, public participation, and scientific peer review before ARB designates a substance as a TAC. Existing sources of TACs that are subject to the Air Toxics Hot Spots Information and Assessment Act are required to: (1) prepare a toxic emissions inventory; (2) prepare a risk assessment if emissions are significant; (3) notify the public of significant risk levels; and (4) prepare and implement risk reduction measures.
At the state level, the ARB has authority for the regulation of emissions from motor vehicles, fuels, and consumer products. More recently, diesel-exhaust particulate matter (DPM) was added to the ARB list of TACs. DPM is the primary TACs of concern for mobile sources. Of all controlled TACs, emissions of DPM are estimated to be responsible for about 70 percent of the total ambient TAC risk. The ARB has made the reduction of the public’s exposure to DPM one of its highest priorities, with an aggressive plan to require cleaner diesel fuel and cleaner diesel engines and vehicles (ARB 2005).
At the local level, air districts have authority over stationary or industrial sources. For SBCAPCD, if a project may emit TACs, or if toxic contaminants may already be present at the project site, and there are sensitive receptors nearby, a screening health risk assessment using worst-case scenario assumptions may be warranted.
Asbestos
Asbestos is the common name for a group of naturally-occurring fibrous silicate minerals that can separate into thin but strong and durable fibers. Naturally-occurring asbestos (NOA), which was identified as a TAC in 1986 by ARB, is located in many parts of California and is commonly associated with ultramafic rock.
Asbestos-containing material (ACM) may be present in existing structures. The demolition of existing structures may be subject to regulatory requirements for the control of ACM.
SBCAPCD states that if a residential building with more than four units or a commercial building is to be demolished or renovated, or the structure is considered a “regulated structure” (e.g., bridges, caissons, etc.), the project proponent must complete SBCAPCD Form ENF-28: Notification for Renovation and Demolition or APCD Form ENF-28e: EXEMPTION from Notification for Renovation and Demolition and the SBCAPCD must be notified even if the building does not contain any asbestos. However, if the project is only a renovation, no notification is required unless the renovation involves disturbing a threshold amount of regulated asbestos materials (SBCAPCD 2021b).
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
7 Regulatory Framework
Air quality within the SCCAB is regulated by several jurisdictions including the U.S. EPA, ARB, and the SBCAPCD.
Each of these jurisdictions develops rules, regulations, and policies to attain the goals or directives imposed upon them through legislation.
Federal
U.S. Environmental Protection Agency
At the federal level, the U.S. EPA has been charged with implementing national air quality programs. The U.S.
EPA’s air quality mandates are drawn primarily from the FCAA, which was signed into law in 1970. Congress substantially amended the FCAA in 1977 and again in 1990.
Federal Clean Air Act
The FCAA required the U.S. EPA to establish NAAQS, and also set deadlines for their attainment. Two types of NAAQS have been established: primary standards, which protect public health, and secondary standards, which protect public welfare from non-health-related adverse effects, such as visibility restrictions. NAAQS are summarized in Table AQ-2.
State
California Air Resources Board
The ARB is the agency responsible for coordination and oversight of state and local air pollution control programs in California and for implementing the CCAA of 1988. Other ARB duties include monitoring air quality (in conjunction with air monitoring networks maintained by air pollution control districts and air quality management districts, establishing California Ambient Air Quality Standards (CAAQS), which in many cases are more stringent than the NAAQS, and setting emissions standards for new motor vehicles. The CAAQS are summarized in Table AQ-2. The emission standards established for motor vehicles differ depending on various factors including the model year, and the type of vehicle, fuel, and engine used.
California Clean Air Act
The CCAA requires that all air districts in the state endeavor to achieve and maintain CAAQS for O3, CO, sulfur dioxide (SO2), and NO2 by the earliest practicable date. The CCAA specifies that districts focus particular attention on reducing the emissions from transportation and area-wide emission sources, and the act provides districts with authority to regulate indirect sources. Each district plan is required to either (1) achieve a five percent annual reduction, averaged over consecutive 3-year periods, in district-wide emissions of each non-attainment pollutant or its precursors, or (2) to provide for the implementation of all feasible measures to reduce emissions. Any planning effort for air quality attainment would thus need to consider both state and federal planning requirements.
Assembly Bills 1807 & 2588 - Toxic Air Contaminants
Within California, TACs are regulated primarily through AB 1807 (Tanner Air Toxics Act) and AB 2588 (Air Toxics Hot Spots Information and Assessment Act of 1987). The Tanner Air Toxics Act sets forth a formal procedure for ARB to designate substances as TACs. This includes research, public participation, and scientific peer review before ARB designates a substance as a TAC. Existing sources of TACs that are subject to the Air Toxics Hot Spots Information and Assessment Act are required to: (1) prepare a toxic emissions inventory; (2) prepare a risk assessment if emissions are significant; (3) notify the public of significant risk levels; and (4) prepare and implement risk reduction measures.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
8 Table AQ-2. Santa Barbara County Attainment/Nonattainment Classification Summary Pollutant Averaging Time
California Standards National Standards
Concentration Attainment
Status Concentration Attainment Status
Ozone
8 hour 0.070 ppm A 0.070 ppm U/A
1 hour 0.09 ppm A — — (180 µg/m3)
Carbon Monoxide
8 hour 9.0 ppm A
9.0 ppm A
(10 mg/m3) (10 µg/m3)
1 hour 20.0 ppm A
35.0 ppm A
(23 mg/m3) (40 µg/m3)
Nitrogen Dioxide
annual average 0.030 ppm A 53 ppb U/A (56 µg/m3)
1 hour 0.18 ppm A 100 ppb U/A (338 µg/m3)
Sulfur Dioxide
annual average — — Revoked —
24 hour 0.04 ppm A Revoked — (105 µg/m3)
1 hour 0.25 ppm A 75 ppb *
(655 µg/m3)
Particulate Matter (PM10)
annual arithmetic
mean
20 µg/m3 N Revoked A
24 hour 50 µg/m3 N 150 µg/m3 A
Particulate Matter – Fine
(PM2.5)
annual arithmetic
mean
12µg/m3 U 12.0 µg/m3 U/A
24 hour — — 35 µg/m3 U/A
Sulfates 24 hour 25 µg/m3 A — —
Lead
calendar quarter — — 1.5 µg/m3 A
30 day average 1.5 µg/m3 A — —
Rolling 3-month
Average — — 0.15 µg/m3 U
Hydrogen Sulfide 1 hour 0.03 ppm A — — (42 µg/m3)
Vinyl Chloride
(chloroethene) 24 hour 0.010 ppm — — (26 µg/m3)
Visibility Reducing
Particles
8 hour A — — (1000 to 1800 PST)
A = Attainment; N = Nonattainment; U = Unclassified; U/A = Unclassifiable/Attainment; — = No Standard; mg/m3 = milligrams per cubic meter; µg/m3 = micrograms per cubic meter; ppm = parts per million; ppb = parts per billion; * = EPA has not yet made final designations on attainment status Source: SBCAPCD 2023
In-Use Off-Road Diesel Vehicle Regulation
On July 26, 2007, the ARB adopted a regulation to reduce DPM and oxides of nitrogen (NOx) emissions from in-use (existing) off-road heavy-duty diesel vehicles in California. The regulation applies to self-propelled diesel-fueled vehicles that cannot be registered and licensed to drive on-road, as well as two-engine vehicles that drive on road, with the limited exception of two-engine sweepers. Examples include loaders, crawler tractors, skid steers, backhoes, forklifts, airport ground support equipment, water well drilling rigs, and twoengine cranes. Such vehicles are used in construction, mining, and industrial operations. The regulation does not apply to stationary equipment or portable equipment such as generators. The off-road vehicle regulation establishes emissions performance requirements, reporting, disclosure, and labeling requirements for off-road vehicles, and limits unnecessary idling.
California Building Code
The California Building Code (CBC) contains standards that regulate the method of use, properties, performance, or types of materials used in the construction, alteration, improvement, repair, or rehabilitation
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
9 of a building or other improvement to real property. The CBC is adopted every three years by the Building Standards Commission (BSC). In the interim, the BSC also adopts annual updates to make necessary midterm corrections. The CBC standards apply statewide; however, a local jurisdiction may amend a CBC standard if it makes a finding that the amendment is reasonably necessary due to local climatic, geological, or topographical conditions.
Green Building Standards
In essence, green buildings standards are indistinguishable from any other building standards. Both standards are contained in the CBC and regulate the construction of new buildings and improvements. The only practical distinction between the two is that whereas the focus of traditional building standards has been protecting public health and safety, the focus of green building standards is to improve environmental performance.
Local
Santa Barbara County Air Pollution Control District
The SBCAPCD is the agency primarily responsible for ensuring that NAAQS and CAAQS are not exceeded and that air quality conditions within the region are maintained. Responsibilities of the SBCAPCD include, but are not limited to, preparing plans for the attainment of ambient air quality standards, adopting and enforcing rules and regulations concerning sources of air pollution, issuing permits for stationary sources of air pollution, inspecting stationary sources of air pollution and responding to citizen complaints, monitoring ambient air quality and meteorological conditions, and implementing programs and regulations required by the FCAA and the CCAA.
Impact Analysis
Thresholds of Significance
In accordance with Appendix G of the CEQA Guidelines, air quality impacts associated with the proposed project would be considered significant if it would:
a) Conflict with or obstruct implementation of the applicable air quality plan. b) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard. c) Expose sensitive receptors to substantial pollutant concentrations. d) Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people.
To assist in the evaluation of air quality impacts, the SBCAPCD has developed recommended significance thresholds, which are contained in the SBCAPCD Scope and Content of Air Quality Sections in Environmental Documents (SBCAPCD 2017). For the purposes of this analysis, project emissions are considered potentially significant impacts if any of the following SBCAPCD recommended thresholds are exceeded:
Construction Impacts
The SBCAPCD recommends 25 tons per year for reactive organic compounds (ROC) or NOX as a guideline for determining the significance of construction impacts. In addition, the SBCAPCD recommends incorporation of standard mitigation measures to minimize localized air quality impacts commonly associated with construction activities and to ensure consistency with air quality attainment and maintenance efforts.
Operational Impacts
A proposed project will have a significant impact on air quality, either individually or cumulatively, if operational emissions would:
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
10 • exceed the daily trigger for offsets or Air Quality Impact Analysis set in the SBCAPCD New Source Review Rule, for any pollutant (i.e., 240 pounds/day for ROC or NOx; and 80 lbs/day for PM10). There is no daily operational threshold for CO (it is an attainment pollutant) • exceed 25 pounds/day of NOx or ROC from motor vehicle trips only • would cause or contribute to a violation of any CAAQS or NAAQS (except O3) • would exceed the SBCAPCD health risk public notification thresholds adopted by the SBCAPCD Board (10 excess cancer cases in a million for cancer risk and a Hazard Index of more than one (1.0) for non-cancer risk)
• would be inconsistent with the latest adopted federal and state air quality plans for Santa Barbara County.
Methodology
Short-term emissions associated with the construction of the proposed project were calculated using the California Emissions Estimator Model (CalEEMod), version 2020.4.0, computer program. Construction emissions were calculated assuming an estimated overall construction period of nine months, based on construction information provided. Project-specific construction information, such as activity schedules, equipment use, worker vehicle trips, and equipment load factors were not available and, therefore, were based on model defaults for Santa Barbara County. Demolition of existing structures is not anticipated to be required, however, some minor demolition may be required during renovation of the existing structures. Modeling assumptions and output files are included in Appendix A of this report.
Long-term operational increases in emissions of criteria air pollutants were calculated using the CalEEMod, version 2020.4.0. Emissions modeling included quantification of emissions associated with area sources, energy use, and mobile sources. Area sources included the use of architectural coatings and landscape maintenance activities. Energy use included emissions associated with natural gas and electricity use. Tripgeneration rates were obtained from the traffic analysis prepared for the proposed project (ATE 2023).
Specific fleet-mix data for the project was not available and, therefore, were based on the default fleet mix identified in CalEEMod for Santa Barbara County.
Project Impacts and Mitigation Measures
Impact AQ-A. Conflict with or obstruct implementation of the applicable air quality plan.
SBCAPCD 2019 Ozone Plan
As part of the CCAA, the SBCAPCD is required to develop a plan to achieve and maintain the state ozone standard by the earliest practicable date. The SBCAPCD 2019 Ozone Plan (Plan) addresses the attainment and maintenance of state and federal ambient air quality standards. The Plan was adopted by SBCAPCD on December 19, 2019 (SBCAPCD 2019).
The Plan outlines the SBCAPCD strategies to reduce ozone-precursor pollutants (i.e., ROC and NOX) from a wide variety of sources. The Plan includes a stationary-source control program, which includes control measures for permitted stationary sources; as well as, transportation and land use management strategies to reduce motor vehicle emissions. The stationary-source control program is administered by SBCAPCD.
Transportation and land use control measures are implemented at the local or regional level, by promoting and facilitating the use of alternative transportation options, increased pedestrian access and accessibility to community services and local destinations, reductions in vehicle miles traveled, and promotion of congestion management efforts. In addition, local jurisdictions also prepare population forecasts, which are used by SBCAPCD to forecast population-related emissions and air quality attainment, including those contained in the Plan.
Consistency with land use and population forecasts in local and regional plans, including the Plan, is required for projects subject to CEQA. Proposed projects subject to the most recent Plan consistency determinations include but are not limited to commercial, industrial, residential, and transportation projects. The Plan relies primarily on the land use and population projections provided by the Santa Barbara County Association of Governments (SBCAG) and ARB on-road emissions forecast as a basis for vehicle emission forecasting. The
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
11 Plan uses SBCAG’s countywide regional transportation demand model for on-road mobile source emissions estimates and SBCAG’s socio-economic projections to form the basis for some stationary and area source growth forecasts.
To be consistent with the standard dust mitigation measures in Section 6.1 of the SBCAPCD Scope and Content of Air Quality Sections in Environmental Documents (based on policies adopted in the 1979 Air Quality Attainment Plan [AQAP]), all projects involving earthmoving activities must implement the standard dust control measures. implementation of standard dust control measures would be required as stated in Impact AQ-B and detailed in Mitigation Measure AQ-1.
The proposed project would not result in an increase in population or employment that would affect regional emissions analyses. In addition, based on the traffic analysis prepared for this project, the project would have a less than significant impact on vehicle miles traveled. As a result, the proposed project would not be anticipated to adversely impact regional emissions forecasts nor interfere with regional air quality attainment and maintenance efforts. This impact is considered less than significant.
Impact AQ-B. Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard.
Short-term Construction Emissions
Construction-generated emissions are of temporary duration, lasting only as long as construction activities occur, but have the potential to represent a significant air quality impact. Construction of the proposed project would result in the temporary generation of emissions associated with paving, architectural coating application, motor vehicle exhaust associated with construction equipment and worker trips, as well as the movement of construction equipment on unpaved surfaces. Short-term construction emissions would result in increased emissions of ozone-precursor pollutants (i.e., reactive organic gases (ROG) and NOX) and emissions of PM.
Estimated maximum annual emissions associated with construction of the proposed project are presented in Table AQ-3. As depicted in Table AQ-3, the maximum annual construction-generated emissions would total approximately 0.02 tons/year of ROG and 1.5 tons/year of NOx. Maximum annual construction emissions would not exceed the threshold of 25 tons/year. However, since Santa Barbara County violates the state standard for PM10, dust control measures are required for all projects involved in earthmoving activities regardless of the significance of the fugitive dust impacts. In addition, as discussed in Impact AQ-C, emissions of PM10 can result in nuisance impacts, including irritation of eyes and respiratory tract (refer to Table AQ-1).
For these reasons, construction-generated emissions would be considered to have a potentially significant impact.
Table AQ-3. Annual Construction Emissions without Mitigation Emissions (tons per year)
ROG NOx CO SO2 PM10 PM2.5
Construction-Generated Emissions 0.2 1.5 1.4 <0.1 0.1 0.1 SBCAPCD Significance Thresholds 25 25 - - - -
Exceeds Significance Thresholds? No No - - - -
FUG = Fugitive; EXH = Exhaust; TOT = Total
Refer to Appendix A for modeling assumptions and results.
Mitigation Measures
AQ-1: If a grading permit is issued for the project, the following construction mitigation measures shall be implemented to minimize short-term construction emissions. These measures shall be identified on grading site plans.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
12 Dust Control Measures
a. During construction, use water trucks or sprinkler systems to keep all areas of vehicle movement damp enough to prevent dust from leaving the site. At a minimum, this should include wetting down such areas in the late morning and after work is completed for the day. Increased watering frequency should be required whenever the wind speed exceeds 15 miles per hour. Reclaimed water should be used whenever feasible. However, reclaimed water should not be used in or around crops for human consumption.
b. Minimize amount of disturbed area and reduce on site vehicle speeds to 15 miles per hour or less. c. If importation, exportation and stockpiling of fill material is involved, soil stockpiled for more than two days shall be covered, kept moist, or treated with soil binders to prevent dust generation.
Trucks transporting fill material to and from the site shall be tarped from the point of origin. d. Gravel pads shall be installed at all access points to prevent tracking of mud onto public roads. e. After clearing, grading, earth moving or excavation is completed, treat the disturbed area by watering, or revegetating, or by spreading soil binders until the area is paved or otherwise developed so that dust generation will not occur.
f. The contractor or builder shall designate a person or persons to monitor the dust control program and to order increased watering, as necessary, to prevent transport of dust offsite. Their duties shall include holiday and weekend periods when work may not be in progress. The name and telephone number of such persons shall be provided to the SBCAPCD prior to grading/building permit issuance and/or map clearance.
Equipment Emissions Control Measures
g. All portable diesel-powered construction equipment shall be registered with the state’s portable equipment registration program or shall obtain an SBCAPCD permit. h. Fleet owners of mobile construction equipment are subject to the ARB Regulation for In-Use OffRoad Diesel Vehicles (Title 13, California Code of Regulations (CCR), §2449), the purpose of which is to reduce NOx, DPM, and other criteria pollutant emissions from in-use off-road diesel-fueled vehicles. Off-road heavy-duty trucks shall comply with the State Off-Road Regulation. i. Fleet owners of mobile construction equipment are subject to the ARB Regulation for In-Use (OnRoad) Heavy-Duty Diesel-Fueled Vehicles (Title 13, CCR, §2025), the purpose of which is to reduce DPM, NOx and other criteria pollutants from in-use (on-road) diesel-fueled vehicles. On-road heavy-duty trucks shall comply with the State On-Road Regulation. j. All commercial off-road and on-road diesel vehicles are subject, respectively, to Title 13, CCR, §2449(d)(3) and §2485, limiting engine idling time. Idling of heavy-duty diesel construction equipment and trucks during loading and unloading shall be limited to five minutes when not in use; electric auxiliary power units should be used whenever feasible. k. Diesel equipment meeting the ARB Tier 3, or higher, emission standards for off-road heavy-duty diesel engines shall be used to the extent locally available. l. On-road heavy-duty equipment with model year 2010 engines or newer shall be used to the extent locally available.
m. Diesel powered equipment shall be replaced by electric equipment whenever feasible. n. Equipment/vehicles using alternative fuels, such as compressed natural gas (CNG), liquefied natural gas (LNG), propane or biodiesel, shall be used on-site to the extent locally available. o. All construction equipment shall be maintained in tune per the manufacturer’s specifications. p. The engine size of construction equipment shall be the minimum practical size. q. The number of construction equipment operating simultaneously shall be minimized through efficient management practices to ensure that the smallest practical number is operating at any one time.
r. Construction worker trips should be minimized by requiring carpooling and by providing for lunch onsite.
Significance After Mitigation
Mitigation Measure AQ-1 would require implementation of dust-control measures for ground-disturbing activities, as well as, measures for the control of construction equipment emissions, including emissions of diesel particulate matter. Implementation of PM emission measures would reduce emissions of fugitive dust by approximately 50 percent, or more. In addition, the project would be required to comply with SBCAPCD’s
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
13 Rule 345 for the control of fugitive dust associated with construction and demolition activities. Asphalt paving activities would also be required to comply with SBCAPCD’s Rule 329 for the use of cutback and emulsified asphalt paving materials, which would help to further reduce emissions of ROG. With mitigation and compliance with applicable regulatory requirements, this impact would be considered less than significant.
Long-term Operational Emissions
Long-term operational emissions associated with the proposed project would be predominantly associated with mobile sources. To a lesser extent, emissions associated with area sources, such as landscape maintenance activities, as well as, use of electricity and natural gas would also contribute to increased operational emissions.
Operational emissions are depicted in Table AQ-4. As depicted in Table AQ-4, daily operational emissions would total approximately 1.1 pounds/day of ROG, 0.8 pounds/day of NOx, and 0.3 pounds/day of PM10.
Estimated daily operational emissions from all sources of ROG, NOX, and PM10 would not exceed the SBCAPCD operational thresholds of 240 pounds/day for ROC or NOx; and 80 pounds/day for PM10. As a result, this impact would be considered less than significant.
Table AQ-4. Daily Operational Emissions Without Mitigation Source
Emissions (pounds per day)
ROG NOx CO SO2 PM10 PM2.5
Area 0.3 <0.1 0.3 <0.1 <0.1 <0.1
Energy <0.1 <0.1 0.3 <0.1 <0.1 <0.1
Mobile 0.8 0.6 4.5 <0.1 0.3 0.1
Total 1.1 0.8 5.0 <0.1 0.3 0.1
SBCAPCD Significance Thresholds (All Sources) 240 240 - - 80 - Exceeds Significance Thresholds? No No - - No -
SBCAPCD Significance Thresholds (Mobile Sources) 25 25 - - - - Exceeds Significance Thresholds? No No - - - -
FUG = Fugitive; EXH = Exhaust; TOT = Total; N/A = Not applicable Emissions were quantified using the CalEEMod program based on data derived from the traffic analysis prepared for this project. Refer to Appendix A for emissions modeling assumptions and results.
Impact AQ-C. Expose sensitive receptors to substantial pollutant concentrations.
As previously noted in Impact AQ-B, the proposed project is not anticipated to result in substantial ground disturbance, such as grading or site preparation activities. However, in the event that ground-disturbance were to occur, SBCAPCD-recommended mitigation measures would be required for the control of fugitive dust. In addition, the project would be required to comply with SBCAPCD’s Rule 345 for the control of fugitive dust associated with construction and demolition activities. Other potential sources of localized pollutants are discussed in greater detail, as follows:
Naturally-Occurring Asbestos
The ARB identifies naturally-occurring asbestos (NOA) as a toxic air contaminant (TAC). In accordance with ARB Air Toxics Control Measure, prior to any grading activities, a geologic evaluation should be conducted to determine if NOA is present within the area that will be disturbed. If NOA is not present, an exemption request form, along with a copy of the geologic report, must be filed with the local air district. If NOA is found at the site, the applicant must comply with all requirements outlined in the Asbestos Air Toxics Control Measure. The project site is not located within an area identified as having a potential for naturally-occurring ultramafic rock and serpentine soils. As a result, this impact would be considered less than significant.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
14 Asbestos-Containing Materials
Demolition activities can have potential negative air quality impacts, including issues surrounding the proper handling, demolition, and disposal of asbestos-containing materials (ACM). ACM could be encountered during the renovation of existing buildings, particularly older structures constructed prior to 1970. Asbestos can also be found in various building products, including (but not limited to) utility pipes/pipelines (transit pipes or insulation on pipes). The proposed project would require the renovation of existing structures, which could result in the disturbance of ACM. As a result, this impact would be considered potentially significant.
Lead-Coated Materials
The renovation/demolition of structures with materials coated with lead-based paint can have potential negative air quality impacts and may adversely affect the health of nearby individuals. Improper handling of lead-containing materials can result in the release of lead-containing particles from the site. The proposed project would require the renovation of existing structures, which could result in the disturbance of leadcontaining materials. As a result, this impact would be considered potentially significant.
Localized PM Concentrations
Fugitive dust emissions would be primarily associated with building demolition, site preparation, grading, and vehicle travel on unpaved and paved surfaces. On-site off-road equipment and trucks would also result in short-term emissions of diesel-exhaust PM, which could contribute to elevated localized concentration at nearby receptors. Uncontrolled emissions of fugitive dust may also contribute to potential increases in nuisance impacts to nearby receptors. For these reasons, localized uncontrolled concentrations of construction-generated PM would be considered to have a potentially significant impact.
Localized Carbon Monoxide Concentrations
Localized concentrations of CO are of primary concern in areas located near congested roadway intersections. Of particular concern are signalized intersections that are projected to operate at unacceptable levels of service (LOS) (LOS E or LOS F). The proposed project is considered a “small project” and would not have an adverse local or regional traffic impact (ATE 2023). For this reason and given the low ambient concentrations in the project area and that the area is current designated attainment for CO, implementation of the proposed project is not anticipated to contribute to localized mobile-source CO concentrations that would exceed applicable ambient air quality standards. This impact is considered less than significant.
Toxic Air Contaminants
If a project has the potential to emit toxic air contaminants (TACs) or is located in close proximity to sensitive receptors, long-term impacts may be considered significant due to increased cancer risk for the affected population. The proposed project is not expected to include the installation of stationary sources of TACs. As a result, this impact would be considered less than significant.
Mitigation Measures
AQ-2: To reduce potential exposure to localized pollutant concentrations associated with construction activities, Mitigation Measure AQ-1 and the following additional measure shall be implemented:
• Demolition of on-site structures shall comply with the National Emission Standards for Hazardous Air Emissions requirements (NESHAP, 40 CFR, Part 61, Subpart M) for the demolition of existing structures. The SBCAPCD is delegated authority by the Environmental Protection Agency (EPA) to implement the Federal NESHAP requirements, including requirements pertaining to the handling of asbestos-containing material and lead-based paint. Prior to demolition of on-site structures, the SBCAPCD shall be notified, per NESHAP requirements. Additional information may be obtained at SBCAPCD’s website, URL: https://www.ourair.org/asbestos/.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
15 Significance After Mitigation
Mitigation Measure AQ-1 would require implementation of dust-control measures for ground-disturbing activities, as well as, measures for the control of construction equipment emissions, including emissions of diesel particulate matter. Implementation of PM emission measures would reduce emissions of fugitive dust by approximately 50 percent, or more. In addition, demolition activities would be required to comply with applicable regulatory requirements for the handling of hazardous materials, including federal NESHAP requirements. With mitigation and compliance with applicable regulatory requirements, this impact would be considered less than significant.
Impact AQ-D. Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people.
The occurrence and severity of odor impacts depend on numerous factors, including the nature, frequency, and intensity of the source; wind speed and direction; and the sensitivity of the receptors. While offensive odors rarely cause any physical harm, they still can be very unpleasant, leading to considerable distress among the public and often generating citizen complaints to local governments and regulatory agencies.
Projects with the potential to frequently expose members of the public to objectionable odors would be deemed to have a significant impact.
The proposed project would not result in the installation of any equipment or processes that would be considered major odor-emission sources. However, construction of the proposed project would involve the use of a variety of gasoline or diesel-powered equipment that would emit exhaust fumes. Exhaust fumes, particularly diesel-exhaust, may be considered objectionable by some people. In addition, pavement coatings and architectural coatings used during project construction would also emit temporary odors.
However, construction-generated emissions would occur intermittently throughout the workday and would dissipate rapidly with increasing distance from the source. In addition, the project would be required to comply with SBCAPCD Rule 303 that prohibits the discharge of air contaminants or other material that would cause injury, detriment, nuisance, or annoyance to any considerable number of persons. As a result, shortterm construction activities would not expose a substantial number of people to frequent odorous emissions.
For these reasons, potential exposure of sensitive receptors to odorous emissions would be considered less than significant.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
16 GREENHOUSE GASES AND CLIMATE CHANGE
Existing Setting
To fully understand global climate change, it is important to recognize the naturally occurring “greenhouse effect” and to define the greenhouse gases (GHGs) that contribute to this phenomenon. Various gases in the earth’s atmosphere, classified as atmospheric GHGs, play a critical role in determining the earth’s surface temperature. Solar radiation enters the earth’s atmosphere from space and a portion of the radiation is absorbed by the earth’s surface. The earth emits this radiation back toward space, but the properties of the radiation change from high-frequency solar radiation to lower-frequency infrared radiation. Greenhouse gases, which are transparent to solar radiation, are effective in absorbing infrared radiation. As a result, this radiation that otherwise would have escaped back into space is now retained, resulting in a warming of the atmosphere. This phenomenon is known as the greenhouse effect. Among the prominent GHGs contributing to the greenhouse effect are carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. Primary GHGs attributed to global climate change, are discussed, as follows:
• Carbon Dioxide. Carbon dioxide (CO2) is a colorless, odorless gas. CO2 is emitted in a number of ways, both naturally and through human activities. The largest source of CO2 emissions globally is the combustion of fossil fuels such as coal, oil, and gas in power plants, automobiles, industrial facilities, and other sources. A number of specialized industrial production processes and product uses such as mineral production, metal production, and the use of petroleum-based products can also lead to CO2 emissions. The atmospheric lifetime of CO2 is variable because it is so readily exchanged in the atmosphere (U.S. EPA 2018).
• Methane. Methane (CH4) is a colorless, odorless gas that is not flammable under most circumstances.
CH4 is the major component of natural gas, about 87 percent by volume. It is also formed and released to the atmosphere by biological processes occurring in anaerobic environments. Methane is emitted from a variety of both human-related and natural sources. Human-related sources include fossil fuel production, animal husbandry (enteric fermentation in livestock and manure management), rice cultivation, biomass burning, and waste management. These activities release significant quantities of methane to the atmosphere. Natural sources of methane include wetlands, gas hydrates, permafrost, termites, oceans, freshwater bodies, non-wetland soils, and other sources such as wildfires. Methane’s atmospheric lifetime is about 12 years (U.S. EPA 2018). • Nitrous Oxide. Nitrous oxide (N2O) is a clear, colorless gas with a slightly sweet odor. N2O is produced by both natural and human-related sources. Primary human-related sources of N2O are agricultural soil management, animal manure management, sewage treatment, mobile and stationary combustion of fossil fuels, acid production, and nitric acid production. N2O is also produced naturally from a wide variety of biological sources in soil and water, particularly microbial action in wet tropical forests. The atmospheric lifetime of N2O is approximately 114 years (U.S. EPA 2018). • Hydrofluorocarbons. Hydrofluorocarbons (HFCs) are man-made chemicals, many of which have been developed as alternatives to ozone-depleting substances for industrial, commercial, and consumer products. The only significant emissions of HFCs before 1990 were of the chemical HFC-23, which is generated as a byproduct of the production of HCFC-22 (or Freon 22, used in air conditioning applications). The atmospheric lifetime for HFCs varies from just over a year for HFC152a to 270 years for HFC-23. Most of the commercially used HFCs have atmospheric lifetimes of less than 15 years (e.g., HFC-134a, which is used in automobile air conditioning and refrigeration, has an atmospheric life of 14 years) (U.S. EPA 2018).
• Perfluorocarbons. Perfluorocarbons (PFCs) are colorless, highly dense, chemically inert, and nontoxic. There are seven PFC gases: perfluoromethane (CF4), perfluoroethane (C2F6), perfluoropropane (C3F8), perfluorobutane (C4F10), perfluorocyclobutane (C4F8), perfluoropentane (C5F12), and perfluorohexane (C6F14). Natural geological emissions have been responsible for the PFCs that have accumulated in the atmosphere in the past; however, the largest current source is aluminum production, which releases CF4 and C2F6 as byproducts. The estimated atmospheric lifetimes for PFCs ranges from 2,600 to 50,000 years (U.S. EPA 2018).
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
17 • Nitrogen Trifluoride. Nitrogen trifluoride (NF3) is an inorganic, colorless, odorless, toxic, nonflammable gas used as an etchant in microelectronics. NF3 is predominantly employed in the cleaning of the plasma-enhanced chemical vapor deposition chambers in the production of liquid crystal displays and silicon-based thin-film solar cells. It has a global warming potential of 16,100 carbon dioxide equivalents (CO2e). While NF3 may have a lower global warming potential than other chemical etchants, it is still a potent GHG. In 2009, NF3 was listed by California as a high global warming potential GHG to be listed and regulated under AB 32 (Section 38505 Health and Safety Code). • Sulfur Hexafluoride. Sulfur hexafluoride (SF6) is an inorganic compound that is colorless, odorless, nontoxic, and generally non-flammable. SF6 is primarily used as an electrical insulator in high voltage equipment. The electric power industry uses roughly 80 percent of all SF6 produced worldwide. Leaks of SF6 occur from aging equipment and during equipment maintenance and servicing. SF6 has an atmospheric life of 3,200 years (U.S. EPA 2018).
• Black Carbon. Black carbon is the strongest light-absorbing component of PM emitted from burning fuels such as coal, diesel, and biomass. Black carbon contributes to climate change both directly by absorbing sunlight and indirectly by depositing on snow and by interacting with clouds and affecting cloud formation. Black carbon is considered a short-lived species, which can vary spatially and, consequently, it is very difficult to quantify associated global-warming potentials. The main sources of black carbon in California are wildfires, off-road vehicles (locomotives, marine vessels, tractors, excavators, dozers, etc.), on-road vehicles (cars, trucks, and buses), fireplaces, agricultural waste burning, and prescribed burning (planned burns of forest or wildlands) (CCAC 2018, U.S. EPA 2018).
Each GHG differs in its ability to absorb heat in the atmosphere based on the lifetime, or persistence, of the gas molecule in the atmosphere. Often, estimates of GHG emissions are presented in CO2e, which weight each gas by its global warming potential (GWP). Expressing GHG emissions in CO2e takes the contribution of all GHG emissions to the greenhouse effect and converts them to a single unit equivalent to the effect that would occur if only CO2 were being emitted. Table GHG-1 provides a summary of the GWP for GHG emissions of typical concern with regard to community development projects, based on a 100-year time horizon. As indicated, CH4 traps over 25 times more heat per molecule than CO2, and N2O absorbs roughly 298 times more heat per molecule than CO2. Additional GHG with high GWP includes NF3, SF6, PFCs, and black carbon.
Table GHG-1. Global Warming Potential for Greenhouse Gases Greenhouse Gas Global Warming Potential (100-year)
Carbon Dioxide (CO2) 1
Methane (CH4) 25
Nitrous Dioxide (N2O) 298
Based on IPCC GWP values for 100-year time horizon.
Source: IPCC 2007
Statewide GHG Emissions
In 2020, GHG emissions within California totaled 369.2 million metric tons (MMT) of CO2e. GHG emissions, by sector, are summarized in Figure GHG-1. Within California, the transportation sector is the largest contributor, accounting for approximately 38 percent of the total state-wide GHG emissions. Emissions associated with industrial uses are the second-largest contributor, totaling roughly 23 percent. Electricity generation totaled roughly 16 percent. Other major emission sources included commercial uses, residential uses, agriculture, recycling, and waste (ARB 2023).
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
18 Figure GHG-1. California GHG Emissions Inventory by Sector (2020)
Source: ARB 2023
Short-Lived Climate Pollutants
Short-lived climate pollutants (SLCPs), such as black carbon, fluorinated gases, and CH4 also have a dramatic effect on climate change. Though short-lived, these pollutants create a warming influence on the climate that is many times more potent than that of carbon dioxide.
As part of the ARB’s efforts to address SLCPs, the ARB has developed a statewide emission inventory for black carbon. The black carbon inventory will help support the implementation of the SLCP Strategy, but it is not part of the State’s GHG Inventory that tracks progress towards the State’s climate targets. The most recent inventory for year 2013 conditions is depicted in Figure GHG-2. As depicted, off-road mobile sources account for a majority of black carbon emissions totaling roughly 36 percent of the inventory. Other major anthropogenic sources of black carbon include on-road transportation, residential wood burning, fuel combustion, and industrial processes (ARB 2022).
Figure GHG-2. California Black Carbon Emissions Inventory (Year 2013) Source: ARB 2022
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
19 Effects of Global Climate Change
There are uncertainties as to exactly what the climate changes will be in various local areas of the earth.
There are also uncertainties associated with the magnitude and timing of other consequences of a warmer planet: sea-level rise, spread of certain diseases out of their usual geographic range, the effect on agricultural production, water supply, sustainability of ecosystems, increased strength and frequency of storms, extreme heat events, increased air pollution episodes, and the consequence of these effects on the economy.
Within California, climate changes would likely alter the ecological characteristics of many ecosystems throughout the state. Such alterations would likely include increases in surface temperatures and changes in the form, timing, and intensity of the precipitation. For instance, historical records are depicting an increasing trend toward earlier snowmelt in the Sierra Nevada. This snowpack is a principal supply of water for the state, providing roughly 50 percent of the state’s annual runoff. If this trend continues, some areas of the state may experience an increased danger of floods during the winter months and possible exhaustion of the snowpack during spring and summer months. Earlier snowmelt would also impact the State’s energy resources.
Currently, approximately 20 percent of California's electricity comes from hydropower. Early exhaustion of the Sierra snowpack may force electricity producers to switch to more costly or non-renewable forms of electricity generation during the spring and summer months. A changing climate may also impact agricultural crop yields, coastal structures, and biodiversity. As a result, resultant changes in climate will likely have detrimental effects on some of California’s largest industries, including agriculture, wine, tourism, skiing, recreational and commercial fishing, and forestry.
Regulatory Framework
Federal
Executive Order 13514
Executive Order 13514 is focused on reducing GHGs internally in federal agency missions, programs, and operations. In addition, the executive order directs federal agencies to participate in the Interagency Climate Change Adaptation Task Force, which is engaged in developing a national strategy for adaptation to climate change.
On April 2, 2007, in Massachusetts v. U.S. EPA, 549 U.S. 497, the Supreme Court found that GHGs are air pollutants covered by the FCAA and that the U.S. EPA has the authority to regulate GHG. The Court held that the U.S. EPA Administrator must determine whether or not emissions of GHGs from new motor vehicles cause or contribute to air pollution which may reasonably be anticipated to endanger public health or welfare, or whether the science is too uncertain to make a reasoned decision.
On December 7, 2009, the U.S. EPA Administrator signed two distinct findings regarding GHGs under section 202(a) of the Clean Air Act:
• Endangerment Finding: The Administrator found that the current and projected concentrations of the six key well-mixed GHGs (CO2, CH4, N2O, HFCs, PFCs, and SF6) in the atmosphere threaten public health and welfare of current and future generations.
• Cause or Contribute Finding: The Administrator found that the combined emissions of these wellmixed GHGs from new motor vehicles and new motor vehicle engines contribute to the GHG pollution which threatens public health and welfare.
Although these findings did not themselves impose any requirements on industry or other entities, this action was a prerequisite to finalizing the U.S. EPA’s Proposed Greenhouse Gas Emission Standards for Light-Duty Vehicles, which was published on September 15, 2009. On May 7, 2010, the final Light-Duty Vehicle Greenhouse Gas Emissions Standards and Corporate Average Fuel Economy Standards were published in the Federal Register.
The U.S. EPA and the National Highway Traffic Safety Administration (NHTSA) are taking coordinated steps to enable the production of a new generation of clean vehicles with reduced GHG emissions and improved
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
20 fuel efficiency from on-road vehicles and engines. These next steps include developing the first-ever GHG regulations for heavy-duty engines and vehicles, as well as additional light-duty vehicle GHG regulations.
These steps were outlined by President Obama in a Presidential Memorandum on May 21, 2010.
The final combined U.S. EPA and NHTSA standards that make up the first phase of this national program apply to passenger cars, light-duty trucks, and medium-duty passenger vehicles, covering model years 2012 through 2016. The standards require these vehicles to meet an estimated combined average emissions level of 250 grams of CO2 per mile (the equivalent to 35.5 miles per gallon if the automobile industry were to meet this CO2 level solely through fuel economy improvements). Together, these standards will cut GHG emissions by an estimated 960 MMT and 1.8 billion barrels of oil over the lifetime of the vehicles sold under the program (model years 2012-2016). On August 28, 2012, U.S. EPA and NHTSA issued their joint rule to extend this national program of coordinated GHG and fuel economy standards to model years 2017 through 2025 passenger vehicles.
State
Assembly Bill 1493
AB 1493 (Pavley) of 2002 (Health and Safety Code Sections 42823 and 43018.5) requires the ARB to develop and adopt the nation’s first GHG emission standards for automobiles. These standards are also known as Pavley I. The California Legislature declared in AB 1493 that global warming is a matter of increasing concern for public health and the environment. It cites several risks that California faces from climate change, including a reduction in the state’s water supply; an increase in air pollution caused by higher temperatures; harm to agriculture; an increase in wildfires; damage to the coastline; and economic losses caused by higher food, water, energy, and insurance prices. The bill also states that technological solutions to reduce GHG emissions would stimulate California’s economy and provide jobs. In 2004, the State of California submitted a request for a waiver from federal clean air regulations, as the State is authorized to do under the FCAA, to allow the State to require reduced tailpipe emissions of CO2. In late 2007, the U.S. EPA denied California’s waiver request and declined to promulgate adequate federal regulations limiting GHG emissions. In early 2008, the State brought suit against the U.S. EPA related to this denial.
In January 2009, President Obama instructed the U.S. EPA to reconsider the Bush Administration’s denial of California’s and 13 other states’ requests to implement global warming pollution standards for cars and trucks. In June 2009, the U.S. EPA granted California’s waiver request, enabling the State to enforce its GHG emissions standards for new motor vehicles beginning with the current model year.
In 2009, President Obama announced a national policy aimed at both increasing fuel economy and reducing GHG pollution for all new cars and trucks sold in the US. The new standards would cover model years 2012 to 2016 and would raise passenger vehicle fuel economy to a fleet average of 35.5 miles per gallon by 2016. When the national program takes effect, California has committed to allowing automakers who show compliance with the national program to also be deemed in compliance with state requirements.
California is committed to further strengthening these standards beginning in 2017 to obtain a 45 percent GHG reduction from the 2020 model year vehicles.
Executive Order S-3-05
Executive Order S-3-05 (State of California) proclaims that California is vulnerable to the impacts of climate change. It declares that increased temperatures could reduce the Sierra’s snowpack, further exacerbate California’s air quality problems, and potentially cause a rise in sea levels. To combat those concerns, the Executive Order established total GHG emission targets. Specifically, emissions are to be reduced to the 2000 level by 2010, to the 1990 level by 2020, and to 80 percent below the 1990 level by 2050.
The Executive Order directed the secretary of the California Environmental Protection Agency (CalEPA) to coordinate a multi-agency effort to reduce GHG emissions to the target levels. The secretary will also submit biannual reports to the governor and state legislature describing (1) progress made toward reaching the emission targets, (2) impacts of global warming on California’s resources, and (3) mitigation and adaptation plans to combat these impacts. To comply with the Executive Order, the secretary of CalEPA created a Climate Action Team made up of members from various state agencies and commissions. The Climate Action Team released its first report in March 2006 and continues to release periodic reports on progress. The
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
21 report proposed to achieve the targets by building on voluntary actions of California businesses, local government, and community actions, as well as through state incentive and regulatory programs.
Executive Order B-30-15
In 2015, Governor Brown signed Executive Order B-30-15, which establishes a California GHG reduction target of 40 percent below 1990 levels by 2030.
Executive Order B-55-18
In 2018, Governor Brown signed Executive Order B-55-18, which set a target of statewide carbon neutrality by 2045.
Executive Order N-79-20
In 2020, Governor Newsom signed Executive Order N-79-20, which calls for elimination of new internal combustion passenger vehicles by 2035. It would end sales of internal combustion passenger vehicles by 2035. It is important to note that the Executive Order focuses on new vehicle sales for automakers, and therefore does not require Californians to give up the existing cars and trucks they already own.
Climate Change Scoping Plan
In October 2008, ARB published its Climate Change Proposed Scoping Plan, which is the State’s plan to achieve GHG reductions in California required by AB 32. This initial Scoping Plan contained the main strategies to be implemented in order to achieve the target emission levels identified in AB 32. The Scoping Plan included ARB-recommended GHG reductions for each emissions sector of the state’s GHG inventory.
The largest proposed GHG reduction recommendations were associated with improving emissions standards for light-duty vehicles, implementing the Low Carbon Fuel Standard program, implementation of energy efficiency measures in buildings and appliances, and the widespread development of combined heat and power systems, and developing a renewable portfolio standard for electricity production.
The Scoping Plan states that land use planning and urban growth decisions will play important roles in the state’s GHG reductions because local governments have primary authority to plan, zone, approve, and permit how land is developed to accommodate population growth and the changing needs of their jurisdictions. ARB further acknowledges that decisions on how land is used will have large impacts on the GHG emissions that will result from the transportation, housing, industry, forestry, water, agriculture, electricity, and natural gas emissions sectors. With regard to land use planning, the Scoping Plan expects approximately
5.0 MMT CO2e will be achieved associated with the implementation of Senate Bill (SB) 375, which is discussed further below.
The initial Scoping Plan was first approved by ARB on December 11, 2008, and is updated every five years.
The first update of the Scoping Plan was approved by the ARB on May 22, 2014, which looked past 2020 to set mid-term goals (2030-2035) on the road to reaching the 2050 goals., The most recent update released by ARB is the 2022 Climate Change Scoping Plan. The 2022 Climate Change Scoping Plan lays out a path to achieve targets for carbon neutrality and reduce anthropogenic GHG emissions by 85 percent below 1990 levels no later than 2045. The actions and outcomes in the plan will achieve significant reductions in fossil fuel combustion by deploying clean technologies and fuels, further reductions in short-lived climate pollutants, support for sustainable development, increased action on natural and working lands to reduce emissions and sequester carbon, and the capture and storage of carbon (ARB 2023).
Mandatory Reporting of GHG Emissions
The California Global Warming Solutions Act (AB 32, 2006) requires the reporting of GHGs by major sources to the ARB. Major sources required to report GHG emissions include industrial facilities, suppliers of transportation fuels, natural gas, natural gas liquids, liquefied petroleum gas, and carbon dioxide, operators of petroleum and natural gas systems, and electricity retail providers and marketers.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
22 Cap-and-Trade Regulation
The cap-and-trade regulation is a key element in California’s climate plan. It sets a statewide limit on sources responsible for 85 percent of California’s GHG emissions and establishes a price signal needed to drive longterm investment in cleaner fuels and more efficient use of energy. The cap-and-trade rules came into effect on January 1, 2013, and apply to large electric power plants and large industrial plants. In 2015, fuel distributors, including distributors of heating and transportation fuels, also became subject to the cap-andtrade rules. At that stage, the program will encompass around 360 businesses throughout California and nearly 85 percent of the state’s total GHG emissions.
Under the cap-and-trade regulation, companies must hold enough emission allowances to cover their emissions and are free to buy and sell allowances on the open market. California held its first auction of GHG allowances on November 14, 2012. California’s GHG cap-and-trade system is projected to reduce GHG emissions to 1990 levels by the year 2020 and would achieve an approximate 80 percent reduction from 1990 levels by 2050.
Senate Bill 32
SB 32 was signed by Governor Brown on September 8, 2016. SB 32 effectively extends California’s GHG emission-reduction goals from year 2020 to year 2030. This new emission-reduction target of 40 percent below 1990 levels by 2030 is intended to promote further GHG-reductions in support of the State’s ultimate goal of reducing GHG emissions by 80 percent below 1990 levels by 2050. SB 32 also directs the ARB to update the Climate Change Scoping Plan to address this interim 2030 emission-reduction target.
Senate Bill 97
SB 97 was enacted in 2007. SB 97 required the Office of Planning and Research to develop, and the Natural Resources Agency to adopt, amendments to the CEQA Guidelines addressing the analysis and mitigation of GHG emissions. Those CEQA Guidelines amendments clarified several points, including the following:
• Lead agencies must analyze the GHG emissions of proposed projects and must reach a conclusion regarding the significance of those emissions.
• When a project’s GHG emissions may be significant, lead agencies must consider a range of potential mitigation measures to reduce those emissions. • Lead agencies must analyze potentially significant impacts associated with placing projects in hazardous locations, including locations potentially affected by climate change. • Lead agencies may significantly streamline the analysis of GHGs on a project level by using a programmatic GHG emissions reduction plan meeting certain criteria. • CEQA mandates analysis of a proposed project’s potential energy use (including transportationrelated energy), sources of energy supply and ways to reduce energy demand, including through the use of efficient transportation alternatives.
As part of the administrative rulemaking process, the California Natural Resources Agency developed a Final Statement of Reasons explaining the legal and factual bases, intent, and purpose of the CEQA Guidelines amendments. The amendments to the CEQA Guidelines implementing SB 97 became effective on March 18, 2010.
Senate Bill 100
SB 100 was signed by Governor Jerry Brown on September 10, 2018. SB 100 sets a goal of phasing out all fossil fuels from the state’s electricity sector by 2045. SB 100 increases to 60 percent, from 50 percent, how much of California’s electricity portfolio must come from renewables by 2030. It establishes a further goal to have an electric grid that is entirely powered by clean energy by 2045, which could include other carbon-free sources, like nuclear power, that are not renewable.
Senate Bill 375
SB 375 requires Metropolitan Planning Organizations (MPOs) to adopt a sustainable communities strategy (SCS) or alternative planning strategy (APS) that will address land-use allocation in that MPOs regional
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
23 transportation plan. ARB, in consultation with MPOs, establishes regional reduction targets for GHGs emitted by passenger cars and light trucks for the years 2020 and 2035. These reduction targets will be updated every eight years but can be updated every four years if advancements in emissions technologies affect the reduction strategies to achieve the targets. ARB is also charged with reviewing each MPO’s SCS or APS for consistency with its assigned targets. If MPOs do not meet the GHG reduction targets, funding for transportation projects may be withheld. In 2018, ARB adopted updated SB 375 targets.
California Building Code
The CBC contains standards that regulate the method of use, properties, performance, or types of materials used in the construction, alteration, improvement, repair, or rehabilitation of a building or other improvement to real property. The CBC is adopted every three years by the BSC. In the interim, the BSC also adopts annual updates to make necessary mid-term corrections. The CBC standards apply statewide; however, a local jurisdiction may amend a CBC standard if it makes a finding that the amendment is reasonably necessary due to local climatic, geological, or topographical conditions.
Green Building Standards
In essence, green buildings standards are indistinguishable from any other building standards. Both standards are contained in the CBC and regulate the construction of new buildings and improvements. The only practical distinction between the two is that whereas the focus of traditional building standards has been protecting public health and safety, the focus of green building standards is to improve environmental performance.
Short-Lived Climate Pollutant Reduction Strategy
In March 2017, the ARB adopted the Short-Lived Climate Pollutant Reduction Strategy (SLCP Strategy) establishing a path to decrease GHG emissions and displace fossil-based natural gas use. Strategies include avoiding landfill methane emissions by reducing the disposal of organics through edible food recovery, composting, in-vessel digestion, and other processes; and recovering methane from wastewater treatment facilities, and manure methane at dairies, and using the methane as a renewable source of natural gas to fuel vehicles or generate electricity. The SLCP Strategy also identifies steps to reduce natural gas leaks from oil and gas wells, pipelines, valves, and pumps to improve safety, avoid energy losses, and reduce methane emissions associated with natural gas use. Lastly, the SLCP Strategy also identifies measures that can reduce HFC emissions at national and international levels, in addition to State-level action that includes an incentive program to encourage the use of low-GWP refrigerants, and limitations on the use of high-GWP refrigerants in new refrigeration and air-conditioning equipment (ARB 2022).
Local
Santa Barbara County Air Pollution Control District
The SBCAPCD is a local public agency with the primary mission of realizing and preserving clean air for all county residents and businesses. Responsibilities of the SBCAPCD include, but are not limited to, preparing plans for the attainment of ambient air quality standards, adopting and enforcing rules and regulations concerning sources of air pollution, issuing permits for stationary sources of air pollution, inspecting stationary sources of air pollution and responding to citizen complaints, monitoring ambient air quality and meteorological conditions, and implementing programs and regulations required by federal and state regulatory requirements.
City of Buellton
The City of Buellton has not adopted a qualified greenhouse gas reduction plan pursuant to CEQA Guidelines Section 15183.5(b)(1). Therefore, this analysis does not utilize the tiering and streamlining provisions of CEQA Guidelines Section 15183.5(b)(2) in evaluating the significance of the project’s impacts related to GHG emissions.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
24 Impact Analysis
In accordance with Appendix G of the State CEQA Guidelines, increased GHG emissions associated with the implementation of the project would be considered significant if may:
a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment.
b) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases.
Threshold of Significance
Neither the SBCAPCD nor the City of Buellton have adopted GHG thresholds of significance for development projects that are subject to CEQA. However, the County of Santa Barbara has recently developed an interim GHG emissions threshold of significance of 300 MTCO2e per year (Santa Barbara County 2020). Projects that exceed this screening threshold can also be evaluated based on an efficiency GHG emissions threshold based on the project’s estimated service population, if applicable. The County’s interim thresholds are based on SB 32 year 2030 GHG-reduction goals, which take into consideration the emission reduction strategies outlined in ARB’s Scoping Plan. Projects that do not exceed the County’s interim thresholds would be considered to have a less than significant increase in GHG emissions and would not be expected to interfere with GHG-reduction planning efforts (Santa Barbara County 2020). Given that development within both the County and the City would be subject to compliance with the State’s building standards, land use development projects and associated GHG emissions occurring within the City would be similar to that which would occur within the County. For this reason and for purposes of this analysis, project generated emissions were evaluated solely in comparison to a significance threshold of 300 MTCO2e per year. Project-generated GHG emissions that would exceed 300 MTCO2e/year would be considered to have a potentially significant impact on the environment that could conflict with GHG-reduction planning efforts.
Methodology
Short-term Construction Impacts
Short-term emissions were quantified using the CalEEMod, version 2020.4.0, based on estimated acreages and building square footage for the proposed project. Other modeling assumptions, including construction equipment requirements, hours of use, worker, and vendor vehicle trips, trip distances, and fleet mix were based on model defaults for the County. Construction-generated GHG emissions were amortized over a 30- year period and included with estimated long-term operational GHG emissions for impact assessment purposes.
Long-term Operational Air Quality Impacts
Long-term operational GHG emissions were calculated using the CalEEMod, version 2020.4.0. Emissions modeling included quantification of emissions associated with area sources, energy use, and mobile sources.
Trip-generation rates for the proposed land uses were derived from the traffic analysis prepared for this project (ATE 2023). Other modeling assumptions, such as vehicle fleet-mix, were not available and, therefore, were based on the default fleet mix identified in CalEEMod for Santa Barbara County. Annual emissions were adjusted based on a total of approximately 12 major events (e.g., weddings) per year (ATE 2023). Emission modeling files are provided in Appendix A.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
25 Project Impacts and Mitigation Measures
Impact GHG-A. Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment; and,
Impact GHG-B. Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases.
Estimated GHG emissions attributable to future development would be primarily associated with increases of CO2 from mobile sources. To a lesser extent, other GHG pollutants, such as CH4 and N2O, would also be generated. Short-term and long-term GHG emissions associated with the development of the proposed project are discussed in greater detail, as follows:
Short-term Construction GHG Emissions
Estimated increases in GHG emissions associated with the construction of the proposed project are summarized in Table GHG-2. Based on the modeling conducted, construction-related GHG emissions would total approximately 222 MTCO2e. Amortized GHG emissions, when averaged over the conservative assumption of 30-year life of the project, would total approximately 7.4 MTCO2e/year. Actual emissions may vary, depending on the final construction schedules, equipment required, and activities conducted.
Amortized construction-generated GHG emissions are included in the operational GHG emissions impact discussion provided below.
Table GHG-2. Construction-Generated GHG Emissions without Mitigation Construction Year GHG Emissions
(MTCO2e/Year)
2023-2024 222
Amortized Construction Emissions: 7.4
MTCO2e = Metric tons of carbon dioxide equivalent
Amortized emissions are quantified based on a 30-year project life.
Long-term Operational GHG Emissions
Estimated long-term increases in GHG emissions associated with the proposed project are summarized in Table GHG-3. As depicted, operational GHG emissions for the proposed project, with the inclusion of amortized construction GHGs, would total approximately 221.5 MTCO2e/year. A majority of the operational GHG emissions would be associated with energy use and the operation of motor vehicles. To a lesser extent, GHG emissions would also be associated with solid waste generation and water use. Project-generated GHG emissions are projected to decrease in future years due largely to improvements in energy-efficiency and vehicle fleet emission rates. Project-generated operational emissions would not exceed the significance threshold of 300 MTCO2e per year. As a result, the proposed project would not result in increased GHG emissions that would have a significant impact on the environment or conflict with GHG-reduction planning efforts. This impact would be considered less than significant.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
26 Table GHG-3. Operational GHG Emissions without Mitigation Emission Source Emissions (MTCO2e/Year)
Mobile1 124.0
Area2 0.1
Energy3 65.8
Waste4 22.3
Water5 1.9
Total Operational Emissions: 214.1
Amortized Construction Emissions: 7.4
Total with Amortized Construction Emissions: 221.5
GHG Significance Threshold: 300
Exceeds Significance Threshold? No
GHG = Greenhouse gas; SP = Service population; MTCO2e = Metric tons of carbon dioxide equivalent
1. Based on vehicle trip-generation rates derived from the traffic impact analysis prepared for this project. Mobile-source emissions for special events were adjusted assuming a total of 12 events annually, based on the conservative assumption that all vehicle trips would originate and end outside of the County. Actual mobile-source emissions, with inclusion of local trips, would be lower.
2. Area source emissions include landscape maintenance activities.
3. Energy use was conservatively calculated based on CalEEMod default energy intensity factors. Does not include adjustments for compliance with Renewable Portfolio Standards, which are anticipated to be lower.
4. Emissions associated with waste generation and water use were based on CalEEMod defaults. Assumes installation of low-flow water fixtures in compliance with current building standard requirements.
Totals may not sum due to rounding. Refer to report appendix for emissions modeling assumptions and results.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
27 REFERENCES
Associated Transportation Engineers (ATE). 2023. Trip Generation for the Willemsen Addition to River View Park – City of Buellton.
California Air Pollution Control Officers Association (CAPCOA). 2021. Health Effects. Website URL:
http://www.capcoa.org/health-effects.
California Air Resources Board (ARB). 2005. Air Quality and Land Use Handbook: A Community Health Perspective.
Website URL: https://ww3.arb.ca.gov/ch/handbook.pdf.
California Air Resources Board (ARB). Accessed: 2023. California’s 2022 Climate Change Scoping Plan. Website URL:
https://ww2.arb.ca.gov/our-work/programs/ab-32-climate-change-scoping-plan/2022-scoping-plan-documents.
California Air Resources Board (ARB). 2021. Air Quality and Emissions. Website URL: https://www.arb.ca.gov/html/ds.htm.
California Air Resources Board (ARB). 2023. California Greenhouse Gas Emissions Inventory. Website URL:
https://ww3.arb.ca.gov/ghg-inventory-data.htm.
California Air Resources Board (ARB). 2022. GHG Short-Lived Climate Pollutant Inventory. Website URL:
https://ww2.arb.ca.gov/ghg-slcp-inventory.
California Department of Finance (DOF). 2020. Demographic Research Unit. Report P-1A: Total Population Projections, California, 2010-2060 (Baseline 2019 Population Projections; Vintage 2019 Release). Website URL:
https://www.dof.ca.gov/forecasting/demographics/projections/.
California Energy Commission (CEC). 2018. 2019 Building Energy Efficiency Standards. Website URL:
https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2019-buildingenergy-efficiency.
Climate & Clean Air Coalition (CCAC). 2018. Black Carbon. Website URL: https://www.ccacoalition.org/en/slcps/blackcarbon.
Intergovernmental Panel on Climate Change (IPCC). 2007. Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Website URL: https://www.ipcc.ch/site/assets/uploads/2018/03/ar4_wg2_full_report.pdf.
Santa Barbara County. October 14, 2020. Santa Barbara County Interim Greenhouse Gas Thresholds Justification.
Available at website url: https://content.civicplus.com/api/assets/28aee9da-38d9-4242-a7fcd29738304d23#:~:text=The%20County%20does%20not%20currently,than%20industrial%20stationary%20source%20pr ojects.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2001. 2001 Clean Air Plan. Website URL:
https://www.ourair.org/download-2001-clean-air-plan/.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2017. Scope and Content of Air Quality Sections in Environmental Documents. Website URL: https://www.ourair.org/wp-content/uploads/ScopeContentJune2017- LimitedUpdate.pdf.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2019. 2019 Ozone Plan. Website URL:
https://www.ourair.org/wp-content/uploads/2019-12-19-Final-Plan.pdf.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2021a. Meeting Air Quality Standards. Website URL:
https://www.ourair.org/air-quality-standards/.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2021b. Asbestos. Website URL:
https://www.ourair.org/asbestos/.
Santa Barbara County Air Pollution Control District (SBCAPCD). 2023. Attainment Status Website URL:
https://www.ourair.org/air-quality-standards/.
Santa Barbara County Planning and Development. 2021. Environmental Thresholds and Guideline Manual. Website URL:
http://www.sblafco.org/asset.c/1375.
United States Environmental Protection Agency (U.S. EPA). 2018. Overview of Greenhouse Gases. Website URL:
https://www.epa.gov/ghgemissions/overview-greenhouse-gasesf.
Air Quality & Greenhouse Gas Impact Assessment AMBIENT Air Quality & Noise Consulting Willemsen Addition to River View Park Project May 2023
28 Appendix A
Emissions Modeling
Buellton Willemsen Park Addition Summary Report, 4/24/2023 1 / 7
Buellton Willemsen Park Addition Summary Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User-Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.4. Operations Emissions Compared Against Thresholds
6. Climate Risk Detailed Report
6.2. Initial Climate Risk Scores
6.3. Adjusted Climate Risk Scores
7. Health and Equity Details
7.3. Overall Health & Equity Scores
7.5. Evaluation Scorecard
Buellton Willemsen Park Addition Summary Report, 4/24/2023 2 / 7
1. Basic Project Information
1.1. Basic Project Information
Data Field Value
Project Name Buellton Willemsen Park Addition
Construction Start Date 7/1/2023
Operational Year 2024
Lead Agency —
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s) 3.10
Precipitation (days) 27.8
Location 34.61341240397998, -120.2054957275572
County Santa Barbara
City Buellton
Air District Santa Barbara County APCD
Air Basin South Central Coast
TAZ 3334
EDFZ 6
Electric Utility Pacific Gas & Electric Company
Gas Utility Southern California Gas
App Version 2022.1.1.11
1.2. Land Use Types
Land Use Subtype Size Unit Lot Acreage Building Area (sq ft) Landscape Area (sq ft)
Special Landscape
Area (sq ft)
Population Description
Buellton Willemsen Park Addition Summary Report, 4/24/2023 3 / 7
City Park 22.5 Acre 22.5 0.00 22.0 22.0 — —
Apartments Low
Rise
1.00 Dwelling Unit 0.06 1,865 0.00 0.00 3.00 Within existing structure
Parking Lot 1.50 Acre 1.50 0.00 0.00 0.00 — —
High Turnover (Sit
Down Restaurant)
5.20 1000sqft 0.12 5,200 1.00 2.00 — Within ex structure Health Club 1.20 1000sqft 0.03 1,200 1.00 0.00 — New Restrooms
1.3. User-Selected Emission Reduction Measures by Emissions Sector Sector # Measure Title
Construction C-2* Limit Heavy-Duty Diesel Vehicle Idling Construction C-5 Use Advanced Engine Tiers
Construction C-10-C Water Unpaved Construction Roads
Construction C-11 Limit Vehicle Speeds on Unpaved Roads Construction C-13 Use Low-VOC Paints for Construction
Water W-4 Require Low-Flow Water Fixtures
Refrigerants R-5 Reduce Service Leak Emissions
* Qualitative or supporting measure. Emission reductions not included in the mitigated emissions results.
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Unmit. 10.6 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754
Buellton Willemsen Park Addition Summary Report, 4/24/2023 4 / 7
Mit. 4.03 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754 %
Reduced
62% — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Unmit. 10.6 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 Mit. 3.82 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 %
Reduced
64% — — — — — — — — — — — — — —
Average
Daily (Max)
— — — — — — — — — — — — — — —
Unmit. 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 Mit. 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 %
Reduced
— — — — — — — — — — — — — — —
Annual
(Max)
— — — — — — — — — — — — — — —
Unmit. 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 Mit. 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 %
Reduced
— — — — — — — — — — — — — — —
2.4. Operations Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Unmit. 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 3.92 1,439 Mit. 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 Page
3.92 258 of 871
1,439
Buellton Willemsen Park Addition Summary Report, 4/24/2023 5 / 7
%
Reduced
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Unmit. 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 Mit. 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 %
Reduced
— — — — — — — — — — — — — — —
Average
Daily (Max)
— — — — — — — — — — — — — — —
Unmit. 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 Mit. 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 %
Reduced
— — — — — — — — — — — — — — —
Annual
(Max)
— — — — — — — — — — — — — — —
Unmit. 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222 Mit. 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222 %
Reduced
— — — — — — — — — — — — — < 0.5% < 0.5%
6. Climate Risk Detailed Report
6.2. Initial Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Buellton Willemsen Park Addition Summary Report, 4/24/2023 6 / 7
Flooding N/A N/A N/A N/A
Drought 0 0 0 N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation N/A N/A N/A N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures.
6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding N/A N/A N/A N/A
Drought 1 1 1 2
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation N/A N/A N/A N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction measures.
7. Health and Equity Details
7.3. Overall Health & Equity Scores
Metric Result for Project Census Tract
Buellton Willemsen Park Addition Summary Report, 4/24/2023 7 / 7
CalEnviroScreen 4.0 Score for Project Location (a) 28.0 Healthy Places Index Score for Project Location (b) 67.0 Project Located in a Designated Disadvantaged Community (Senate Bill 535) No Project Located in a Low-Income Community (Assembly Bill 1550) No Project Located in a Community Air Protection Program Community (Assembly Bill 617) No a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
7.5. Evaluation Scorecard
Health & Equity Evaluation Scorecard not completed.
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 1 / 84
Buellton Willemsen Park Addition Detailed Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User-Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
2.3. Construction Emissions by Year, Mitigated
2.4. Operations Emissions Compared Against Thresholds
2.5. Operations Emissions by Sector, Unmitigated
2.6. Operations Emissions by Sector, Mitigated
3. Construction Emissions Details
3.1. Demolition (2023) - Unmitigated
3.2. Demolition (2023) - Mitigated
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 2 / 84
3.3. Site Preparation (2023) - Unmitigated
3.4. Site Preparation (2023) - Mitigated
3.5. Grading (2023) - Unmitigated
3.6. Grading (2023) - Mitigated
3.7. Building Construction (2023) - Unmitigated
3.8. Building Construction (2023) - Mitigated
3.9. Building Construction (2024) - Unmitigated
3.10. Building Construction (2024) - Mitigated
3.11. Paving (2024) - Unmitigated
3.12. Paving (2024) - Mitigated
3.13. Architectural Coating (2024) - Unmitigated
3.14. Architectural Coating (2024) - Mitigated
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
4.1.2. Mitigated
4.2. Energy
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 3 / 84
4.2.1. Electricity Emissions By Land Use - Unmitigated
4.2.2. Electricity Emissions By Land Use - Mitigated
4.2.3. Natural Gas Emissions By Land Use - Unmitigated
4.2.4. Natural Gas Emissions By Land Use - Mitigated
4.3. Area Emissions by Source
4.3.2. Unmitigated
4.3.1. Mitigated
4.4. Water Emissions by Land Use
4.4.2. Unmitigated
4.4.1. Mitigated
4.5. Waste Emissions by Land Use
4.5.2. Unmitigated
4.5.1. Mitigated
4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
4.6.2. Mitigated
4.7. Offroad Emissions By Equipment Type
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 4 / 84
4.7.1. Unmitigated
4.7.2. Mitigated
4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
4.8.2. Mitigated
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
4.9.2. Mitigated
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
4.10.4. Soil Carbon Accumulation By Vegetation Type - Mitigated
4.10.5. Above and Belowground Carbon Accumulation by Land Use Type - Mitigated
4.10.6. Avoided and Sequestered Emissions by Species - Mitigated
5. Activity Data
5.1. Construction Schedule
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 5 / 84
5.2. Off-Road Equipment
5.2.1. Unmitigated
5.2.2. Mitigated
5.3. Construction Vehicles
5.3.1. Unmitigated
5.3.2. Mitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.9. Operational Mobile Sources
5.9.1. Unmitigated
5.9.2. Mitigated
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 6 / 84
5.10. Operational Area Sources
5.10.1. Hearths
5.10.1.1. Unmitigated
5.10.1.2. Mitigated
5.10.2. Architectural Coatings
5.10.3. Landscape Equipment
5.10.4. Landscape Equipment - Mitigated
5.11. Operational Energy Consumption
5.11.1. Unmitigated
5.11.2. Mitigated
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
5.12.2. Mitigated
5.13. Operational Waste Generation
5.13.1. Unmitigated
5.13.2. Mitigated
5.14. Operational Refrigeration and Air Conditioning Equipment
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 7 / 84
5.14.1. Unmitigated
5.14.2. Mitigated
5.15. Operational Off-Road Equipment
5.15.1. Unmitigated
5.15.2. Mitigated
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
5.16.2. Process Boilers
5.17. User Defined
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1.2. Mitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.1.2. Mitigated
5.18.2. Sequestration
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 8 / 84
5.18.2.1. Unmitigated
5.18.2.2. Mitigated
6. Climate Risk Detailed Report
6.1. Climate Risk Summary
6.2. Initial Climate Risk Scores
6.3. Adjusted Climate Risk Scores
6.4. Climate Risk Reduction Measures
7. Health and Equity Details
7.1. CalEnviroScreen 4.0 Scores
7.2. Healthy Places Index Scores
7.3. Overall Health & Equity Scores
7.4. Health & Equity Measures
7.5. Evaluation Scorecard
7.6. Health & Equity Custom Measures
8. User Changes to Default Data
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 9 / 84
1. Basic Project Information
1.1. Basic Project Information
Data Field Value
Project Name Buellton Willemsen Park Addition
Construction Start Date 7/1/2023
Operational Year 2024
Lead Agency —
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s) 3.10
Precipitation (days) 27.8
Location 34.61341240397998, -120.2054957275572
County Santa Barbara
City Buellton
Air District Santa Barbara County APCD
Air Basin South Central Coast
TAZ 3334
EDFZ 6
Electric Utility Pacific Gas & Electric Company
Gas Utility Southern California Gas
App Version 2022.1.1.11
1.2. Land Use Types
Land Use Subtype Size Unit Lot Acreage Building Area (sq ft) Landscape Area (sq ft)
Special Landscape
Area (sq ft)
Population Description
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 10 / 84
City Park 22.5 Acre 22.5 0.00 22.0 22.0 — —
Apartments Low
Rise
1.00 Dwelling Unit 0.06 1,865 0.00 0.00 3.00 Within existing structure
Parking Lot 1.50 Acre 1.50 0.00 0.00 0.00 — —
High Turnover (Sit
Down Restaurant)
5.20 1000sqft 0.12 5,200 1.00 2.00 — Within ex structure Health Club 1.20 1000sqft 0.03 1,200 1.00 0.00 — New Restrooms
1.3. User-Selected Emission Reduction Measures by Emissions Sector Sector # Measure Title
Construction C-2* Limit Heavy-Duty Diesel Vehicle Idling Construction C-5 Use Advanced Engine Tiers
Construction C-10-C Water Unpaved Construction Roads
Construction C-11 Limit Vehicle Speeds on Unpaved Roads Construction C-13 Use Low-VOC Paints for Construction
Water W-4 Require Low-Flow Water Fixtures
Refrigerants R-5 Reduce Service Leak Emissions
* Qualitative or supporting measure. Emission reductions not included in the mitigated emissions results.
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Unmit. 10.6 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 11 / 84
Mit. 4.03 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754 %
Reduced
62% — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Unmit. 10.6 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 Mit. 3.82 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 %
Reduced
64% — — — — — — — — — — — — — —
Average
Daily (Max)
— — — — — — — — — — — — — — —
Unmit. 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 Mit. 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 %
Reduced
— — — — — — — — — — — — — — —
Annual
(Max)
— — — — — — — — — — — — — — —
Unmit. 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 Mit. 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 %
Reduced
— — — — — — — — — — — — — — —
2.2. Construction Emissions by Year, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Year ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily -
Summer
(Max)
— — — — — — — — — — — — — — —
2023 4.03 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754 2024 10.6 0.91 1.17 < 0.005 0.03 < 0.005 0.04 0.03 < 0.005 0.03 138 0.01 < 0.005 Page
0.02 272 of 871
138
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 12 / 84
Daily -
Winter
(Max)
— — — — — — — — — — — — — — —
2023 3.82 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 2024 10.6 11.3 13.3 0.02 0.50 0.09 0.52 0.46 0.02 0.46 2,440 0.10 0.02 0.01 2,449 Average
Daily
— — — — — — — — — — — — — — —
2023 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 2024 0.73 1.28 1.58 < 0.005 0.06 0.01 0.07 0.05 < 0.005 0.06 267 0.01 < 0.005 0.02 269 Annual — — — — — — — — — — — — — — —
2023 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 2024 0.13 0.23 0.29 < 0.005 0.01 < 0.005 0.01 0.01 < 0.005 0.01 44.3 < 0.005 < 0.005 < 0.005 44.5
2.3. Construction Emissions by Year, Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Year ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily -
Summer
(Max)
— — — — — — — — — — — — — — —
2023 4.03 39.8 36.2 0.06 1.81 5.22 7.02 1.66 2.65 4.31 6,729 0.28 0.06 0.64 6,754 2024 3.39 0.91 1.17 < 0.005 0.03 < 0.005 0.04 0.03 < 0.005 0.03 138 0.01 < 0.005 0.02 138 Daily -
Winter
(Max)
— — — — — — — — — — — — — — —
2023 3.82 37.4 32.3 0.06 1.59 2.52 4.11 1.47 0.98 2.45 6,726 0.28 0.06 0.02 6,751 2024 3.39 11.3 13.3 0.02 0.50 0.09 0.52 0.46 0.02 0.46 2,440 0.10 0.02 0.01 2,449 Average
Daily
— — — — — — — — — — — — — — —
2023 0.86 8.27 7.76 0.01 0.37 0.39 0.76 0.34 0.17 0.51 1,417 0.06 0.01 0.06 1,423 2024 0.33 1.28 1.58 < 0.005 0.06 0.01 0.07 0.05 < 0.005 0.06 267 0.01 < 0.005 0.02 269
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 13 / 84
Annual — — — — — — — — — — — — — — —
2023 0.16 1.51 1.42 < 0.005 0.07 0.07 0.14 0.06 0.03 0.09 235 0.01 < 0.005 0.01 236 2024 0.06 0.23 0.29 < 0.005 0.01 < 0.005 0.01 0.01 < 0.005 0.01 44.3 < 0.005 < 0.005 < 0.005 44.5
2.4. Operations Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit. ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Unmit. 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 3.92 1,439 Mit. 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 3.92 1,439 %
Reduced
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Unmit. 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 Mit. 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 %
Reduced
— — — — — — — — — — — — — — —
Average
Daily (Max)
— — — — — — — — — — — — — — —
Unmit. 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 Mit. 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 %
Reduced
— — — — — — — — — — — — — — —
Annual
(Max)
— — — — — — — — — — — — — — —
Unmit. 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 14 / 84
Mit. 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222 %
Reduced
— — — — — — — — — — — — — < 0.5% < 0.5%
2.5. Operations Emissions by Sector, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Sector ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Mobile 0.78 0.57 4.54 0.01 0.01 0.29 0.30 0.01 0.05 0.06 886 0.06 0.05 3.91 905 Area 0.32 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30 Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 3.92 1,439 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Mobile 0.78 0.63 4.82 0.01 0.01 0.29 0.30 0.01 0.05 0.06 873 0.06 0.05 0.10 890 Area 0.26 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 Average
Daily
— — — — — — — — — — — — — — —
Mobile 0.76 0.58 4.37 0.01 0.01 0.26 0.27 0.01 0.05 0.05 793 0.06 0.05 1.53 810 Area 0.29 < 0.005 0.17 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.64 < 0.005 < 0.005 — 0.64
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 15 / 84
Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 Annual — — — — — — — — — — — — — — —
Mobile 0.14 0.11 0.80 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 131 0.01 0.01 0.25 134 Area 0.05 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11 Energy < 0.005 0.04 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 65.4 0.01 < 0.005 — 65.8 Waste — — — — — — — — — — 6.37 0.64 0.00 — 22.3
Refrig. — — — — — — — — — — — — — < 0.005 < 0.005
Total 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222
2.6. Operations Emissions by Sector, Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Sector ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Mobile 0.78 0.57 4.54 0.01 0.01 0.29 0.30 0.01 0.05 0.06 886 0.06 0.05 3.91 905 Area 0.32 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30 Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.11 0.77 5.03 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,321 3.95 0.05 3.92 1,439 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Mobile 0.78 0.63 4.82 0.01 0.01 0.29 0.30 0.01 0.05 0.06 873 0.06 0.05 0.10 890 Area 0.26 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 16 / 84
Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.06 0.82 4.98 0.01 0.02 0.29 0.31 0.02 0.05 0.07 1,307 3.96 0.05 0.11 1,422 Average
Daily
— — — — — — — — — — — — — — —
Mobile 0.76 0.58 4.37 0.01 0.01 0.26 0.27 0.01 0.05 0.05 793 0.06 0.05 1.53 810 Area 0.29 < 0.005 0.17 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.64 < 0.005 < 0.005 — 0.64 Energy 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 395 0.05 < 0.005 — 397 Waste — — — — — — — — — — 38.5 3.85 0.00 — 135
Refrig. — — — — — — — — — — — — — 0.01 0.01
Total 1.06 0.77 4.69 0.01 0.02 0.26 0.29 0.02 0.05 0.07 1,228 3.95 0.05 1.54 1,343 Annual — — — — — — — — — — — — — — —
Mobile 0.14 0.11 0.80 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 131 0.01 0.01 0.25 134 Area 0.05 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11 Energy < 0.005 0.04 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 65.4 0.01 < 0.005 — 65.8 Waste — — — — — — — — — — 6.37 0.64 0.00 — 22.3
Refrig. — — — — — — — — — — — — — < 0.005 < 0.005
Total 0.19 0.14 0.86 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 203 0.65 0.01 0.25 222
3. Construction Emissions Details
3.1. Demolition (2023) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 17 / 84
Daily, — — — — — — — — — — — — — — —
Summer
(Max)
Off-Road
Equipment
2.84 27.3 23.5 0.03 1.20 — 1.20 1.10 — 1.10 3,425 0.14 0.03 — 3,437 Demolition — — — — — 0.02 0.02 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.16 1.50 1.29 < 0.005 0.07 — 0.07 0.06 — 0.06 188 0.01 < 0.005 — 188 Demolition — — — — — < 0.005 < 0.005 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.03 0.27 0.23 < 0.005 0.01 — 0.01 0.01 — 0.01 31.1 < 0.005 < 0.005 — 31.2 Demolition — — — — — < 0.005 < 0.005 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Worker 0.07 0.05 0.65 0.00 0.00 0.09 0.09 0.00 0.02 0.02 98.0 0.01 < 0.005 0.48 99.9 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.03 0.01 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 22.8 < 0.005 < 0.005 0.04 24.0
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 18 / 84
Daily, — — — — — — — — — — — — — — —
Winter
(Max)
Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.04 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 5.26 < 0.005 < 0.005 0.01 5.35 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 1.25 < 0.005 < 0.005 < 0.005 1.31 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.87 < 0.005 < 0.005 < 0.005 0.89 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.21 < 0.005 < 0.005 < 0.005 0.22
3.2. Demolition (2023) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
2.84 27.3 23.5 0.03 1.20 — 1.20 1.10 — 1.10 3,425 0.14 0.03 — 3,437 Demolition — — — — — 0.02 0.02 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 19 / 84
Off-Road 0.16 1.50 1.29 < 0.005 0.07 — 0.07 0.06 — 0.06 188 0.01 < 0.005 — 188 Equipment
Demolition — — — — — < 0.005 < 0.005 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.03 0.27 0.23 < 0.005 0.01 — 0.01 0.01 — 0.01 31.1 < 0.005 < 0.005 — 31.2 Demolition — — — — — < 0.005 < 0.005 — < 0.005 < 0.005 — — — — — Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Worker 0.07 0.05 0.65 0.00 0.00 0.09 0.09 0.00 0.02 0.02 98.0 0.01 < 0.005 0.48 99.9 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.03 0.01 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 22.8 < 0.005 < 0.005 0.04 24.0 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.04 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 5.26 < 0.005 < 0.005 0.01 5.35 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 1.25 < 0.005 < 0.005 < 0.005 1.31 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.87 < 0.005 < 0.005 < 0.005 0.89 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.21 < 0.005 < 0.005 < 0.005 0.22
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 20 / 84
3.3. Site Preparation (2023) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
3.95 39.7 35.5 0.05 1.81 — 1.81 1.66 — 1.66 5,295 0.21 0.04 — 5,314 Dust From
Material
Movement
— — — — — 5.11 5.11 — 2.63 2.63 — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.11 1.09 0.97 < 0.005 0.05 — 0.05 0.05 — 0.05 145 0.01 < 0.005 — 146 Dust From
Material
Movement
— — — — — 0.14 0.14 — 0.07 0.07 — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.02 0.20 0.18 < 0.005 0.01 — 0.01 0.01 — 0.01 24.0 < 0.005 < 0.005 — 24.1 Dust From
Material
Movement
— — — — — 0.03 0.03 — 0.01 0.01 — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 21 / 84
Onsite 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 truck
Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Worker 0.09 0.06 0.75 0.00 0.00 0.11 0.11 0.00 0.03 0.03 114 0.01 < 0.005 0.56 117 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 3.07 < 0.005 < 0.005 0.01 3.12 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.51 < 0.005 < 0.005 < 0.005 0.52 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.4. Site Preparation (2023) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 22 / 84
Off-Road 3.95 39.7 35.5 0.05 1.81— 1.81 1.66— 1.66 5,295 0.21 0.04— 5,314 Equipment
Dust From
Material
Movement
————— 5.11 5.11— 2.63 2.63—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
———————————————
Average
Daily
———————————————
Off-Road
Equipment
0.11 1.09 0.97 < 0.005 0.05— 0.05 0.05— 0.05 145 0.01 < 0.005— 146 Dust From
Material
Movement
————— 0.14 0.14— 0.07 0.07—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual———————————————
Off-Road
Equipment
0.02 0.20 0.18 < 0.005 0.01— 0.01 0.01— 0.01 24.0 < 0.005 < 0.005— 24.1 Dust From
Material
Movement
————— 0.03 0.03— 0.01 0.01—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite———————————————
Daily,
Summer
(Max)
———————————————
Worker 0.09 0.06 0.75 0.00 0.00 0.11 0.11 0.00 0.03 0.03 114 0.01 < 0.005 0.56 117 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Page
0.00 283 of 871
0.00 Buellton Willemsen Park Addition Detailed Report, 4/24/2023 23 / 84
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 3.07 < 0.005 < 0.005 0.01 3.12 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.51 < 0.005 < 0.005 < 0.005 0.52 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.5. Grading (2023) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
3.72 37.3 31.4 0.06 1.59 — 1.59 1.47 — 1.47 6,598 0.27 0.05 — 6,621 Dust From
Material
Movement
— — — — — 2.39 2.39 — 0.95 0.95 — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
3.72 37.3 31.4 0.06 1.59 — 1.59 1.47 — 1.47 6,598 0.27 0.05 — 6,621
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 24 / 84
Dust From
Material
Movement
————— 2.39 2.39— 0.95 0.95—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
———————————————
Off-Road
Equipment
0.36 3.58 3.01 0.01 0.15— 0.15 0.14— 0.14 633 0.03 0.01— 635 Dust From
Material
Movement
————— 0.23 0.23— 0.09 0.09—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual———————————————
Off-Road
Equipment
0.07 0.65 0.55 < 0.005 0.03— 0.03 0.03— 0.03 105 < 0.005 < 0.005— 105 Dust From
Material
Movement
————— 0.04 0.04— 0.02 0.02—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite———————————————
Daily,
Summer
(Max)
———————————————
Worker 0.10 0.07 0.86 0.00 0.00 0.12 0.12 0.00 0.03 0.03 131 0.01 0.01 0.64 133 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
———————————————
Worker 0.10 0.09 0.88 0.00 0.00 0.12 0.12 0.00 0.03 0.03 128 0.01 0.01 0.02 130
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 25 / 84
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker 0.01 0.01 0.08 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 12.3 < 0.005 < 0.005 0.03 12.5 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 2.03 < 0.005 < 0.005 < 0.005 2.07 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.6. Grading (2023) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
3.72 37.3 31.4 0.06 1.59 — 1.59 1.47 — 1.47 6,598 0.27 0.05 — 6,621 Dust From
Material
Movement
— — — — — 2.39 2.39 — 0.95 0.95 — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
3.72 37.3 31.4 0.06 1.59 — 1.59 1.47 — 1.47 6,598 0.27 0.05 — 6,621
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 26 / 84
Dust From
Material
Movement
————— 2.39 2.39— 0.95 0.95—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
———————————————
Off-Road
Equipment
0.36 3.58 3.01 0.01 0.15— 0.15 0.14— 0.14 633 0.03 0.01— 635 Dust From
Material
Movement
————— 0.23 0.23— 0.09 0.09—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual———————————————
Off-Road
Equipment
0.07 0.65 0.55 < 0.005 0.03— 0.03 0.03— 0.03 105 < 0.005 < 0.005— 105 Dust From
Material
Movement
————— 0.04 0.04— 0.02 0.02—————
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite———————————————
Daily,
Summer
(Max)
———————————————
Worker 0.10 0.07 0.86 0.00 0.00 0.12 0.12 0.00 0.03 0.03 131 0.01 0.01 0.64 133 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
———————————————
Worker 0.10 0.09 0.88 0.00 0.00 0.12 0.12 0.00 0.03 0.03 128 0.01 0.01 0.02 130
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 27 / 84
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker 0.01 0.01 0.08 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 12.3 < 0.005 < 0.005 0.03 12.5 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 2.03 < 0.005 < 0.005 < 0.005 2.07 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.7. Building Construction (2023) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
1.26 11.8 13.2 0.02 0.55 — 0.55 0.51 — 0.51 2,397 0.10 0.02 — 2,406 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.22 2.08 2.32 < 0.005 0.10 — 0.10 0.09 — 0.09 422 0.02 < 0.005 — 424
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 28 / 84
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.04 0.38 0.42 < 0.005 0.02 — 0.02 0.02 — 0.02 69.9 < 0.005 < 0.005 — 70.1 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.02 0.01 0.15 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 21.8 < 0.005 < 0.005 < 0.005 22.1 Vendor < 0.005 0.04 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 21.2 < 0.005 < 0.005 < 0.005 22.1 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 3.84 < 0.005 < 0.005 0.01 3.91 Vendor < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 3.73 < 0.005 < 0.005 < 0.005 3.90 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.64 < 0.005 < 0.005 < 0.005 0.65 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.62 < 0.005 < 0.005 < 0.005 0.65 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.8. Building Construction (2023) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 29 / 84
Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
1.26 11.8 13.2 0.02 0.55 — 0.55 0.51 — 0.51 2,397 0.10 0.02 — 2,406 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.22 2.08 2.32 < 0.005 0.10 — 0.10 0.09 — 0.09 422 0.02 < 0.005 — 424 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.04 0.38 0.42 < 0.005 0.02 — 0.02 0.02 — 0.02 69.9 < 0.005 < 0.005 — 70.1 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.02 0.01 0.15 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 21.8 < 0.005 < 0.005 < 0.005 22.1 Vendor < 0.005 0.04 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 21.2 < 0.005 < 0.005 < 0.005 22.1 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 30 / 84
Average — — — — — — — — — — — — — — —
Daily
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 3.84 < 0.005 < 0.005 0.01 3.91 Vendor < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 3.73 < 0.005 < 0.005 < 0.005 3.90 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.64 < 0.005 < 0.005 < 0.005 0.65 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.62 < 0.005 < 0.005 < 0.005 0.65 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.9. Building Construction (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
1.20 11.2 13.1 0.02 0.50 — 0.50 0.46 — 0.46 2,398 0.10 0.02 — 2,406 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.08 0.79 0.92 < 0.005 0.04 — 0.04 0.03 — 0.03 169 0.01 < 0.005 — 169 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — Page —291 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 31 / 84
Off-Road
Equipment
0.02 0.14 0.17 < 0.005 0.01 — 0.01 0.01 — 0.01 28.0 < 0.005 < 0.005 — 28.1 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.02 0.01 0.14 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 21.4 < 0.005 < 0.005 < 0.005 21.7 Vendor < 0.005 0.03 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 20.9 < 0.005 < 0.005 < 0.005 21.8 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 1.51 < 0.005 < 0.005 < 0.005 1.54 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 1.47 < 0.005 < 0.005 < 0.005 1.54 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.25 < 0.005 < 0.005 < 0.005 0.25 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.24 < 0.005 < 0.005 < 0.005 0.25 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.10. Building Construction (2024) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 32 / 84
Daily, — — — — — — — — — — — — — — —
Summer
(Max)
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
1.20 11.2 13.1 0.02 0.50 — 0.50 0.46 — 0.46 2,398 0.10 0.02 — 2,406 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.08 0.79 0.92 < 0.005 0.04 — 0.04 0.03 — 0.03 169 0.01 < 0.005 — 169 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.02 0.14 0.17 < 0.005 0.01 — 0.01 0.01 — 0.01 28.0 < 0.005 < 0.005 — 28.1 Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.02 0.01 0.14 0.00 0.00 0.02 0.02 0.00 < 0.005 < 0.005 21.4 < 0.005 < 0.005 < 0.005 21.7 Vendor < 0.005 0.03 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 20.9 < 0.005 < 0.005 < 0.005 21.8 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 33 / 84
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 1.51 < 0.005 < 0.005 < 0.005 1.54 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 1.47 < 0.005 < 0.005 < 0.005 1.54 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.25 < 0.005 < 0.005 < 0.005 0.25 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.24 < 0.005 < 0.005 < 0.005 0.25 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.11. Paving (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.85 7.81 10.0 0.01 0.39 — 0.39 0.36 — 0.36 1,512 0.06 0.01 — 1,517 Paving 0.20 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.05 0.43 0.55 < 0.005 0.02 — 0.02 0.02 — 0.02 82.8 < 0.005 < 0.005 — 83.1 Paving 0.01 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 34 / 84
Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.01 0.08 0.10 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 13.7 < 0.005 < 0.005 — 13.8 Paving < 0.005 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.07 0.06 0.62 0.00 0.00 0.09 0.09 0.00 0.02 0.02 94.2 0.01 < 0.005 0.01 95.7 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 5.17 < 0.005 < 0.005 0.01 5.26 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.86 < 0.005 < 0.005 < 0.005 0.87 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.12. Paving (2024) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — Page —295 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 35 / 84
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.85 7.81 10.0 0.01 0.39 — 0.39 0.36 — 0.36 1,512 0.06 0.01 — 1,517 Paving 0.20 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.05 0.43 0.55 < 0.005 0.02 — 0.02 0.02 — 0.02 82.8 < 0.005 < 0.005 — 83.1 Paving 0.01 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
0.01 0.08 0.10 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 13.7 < 0.005 < 0.005 — 13.8 Paving < 0.005 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker 0.07 0.06 0.62 0.00 0.00 0.09 0.09 0.00 0.02 0.02 94.2 0.01 < 0.005 0.01 95.7 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 36 / 84
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 5.17 < 0.005 < 0.005 0.01 5.26 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.86 < 0.005 < 0.005 < 0.005 0.87 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.13. Architectural Coating (2024) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.14 0.91 1.15 < 0.005 0.03 — 0.03 0.03 — 0.03 134 0.01 < 0.005 — 134 Architectur
al
Coatings
10.4 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.14 0.91 1.15 < 0.005 0.03 — 0.03 0.03 — 0.03 134 0.01 < 0.005 — 134
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 37 / 84
Architectur 10.4 — — — — — — — — — — — — — —
al
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.01 0.05 0.06 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 7.32 < 0.005 < 0.005 — 7.34 Architectur
al
Coatings
0.57 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.21 < 0.005 < 0.005 — 1.22 Architectur
al
Coatings
0.10 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 4.37 < 0.005 < 0.005 0.02 4.46 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 4.28 < 0.005 < 0.005 < 0.005 4.35 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 38 / 84
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.23 < 0.005 < 0.005 < 0.005 0.24 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.04 < 0.005 < 0.005 < 0.005 0.04 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.14. Architectural Coating (2024) - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Onsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.14 0.91 1.15 < 0.005 0.03 — 0.03 0.03 — 0.03 134 0.01 < 0.005 — 134 Architectur
al
Coatings
3.25 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.14 0.91 1.15 < 0.005 0.03 — 0.03 0.03 — 0.03 134 0.01 < 0.005 — 134
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 39 / 84
Architectur 3.25 — — — — — — — — — — — — — —
al
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Off-Road
Equipment
0.01 0.05 0.06 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 7.32 < 0.005 < 0.005 — 7.34 Architectur
al
Coatings
0.18 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.21 < 0.005 < 0.005 — 1.22 Architectur
al
Coatings
0.03 — — — — — — — — — — — — — —
Onsite
truck
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 4.37 < 0.005 < 0.005 0.02 4.46 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 4.28 < 0.005 < 0.005 < 0.005 4.35 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 40 / 84
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.23 < 0.005 < 0.005 < 0.005 0.24 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 0.04 < 0.005 < 0.005 < 0.005 0.04 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park 0.60 0.44 3.49 0.01 0.01 0.22 0.23 0.01 0.04 0.05 683 0.04 0.04 3.01 697 Apartment
s
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.18 0.13 1.04 < 0.005 < 0.005 0.07 0.07 < 0.005 0.01 0.01 204 0.01 0.01 0.90 208
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 41 / 84
Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.78 0.57 4.54 0.01 0.01 0.29 0.30 0.01 0.05 0.06 886 0.06 0.05 3.91 905 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
City Park 0.60 0.48 3.72 0.01 0.01 0.22 0.23 0.01 0.04 0.05 672 0.05 0.04 0.08 685 Apartment
s
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.18 0.14 1.11 < 0.005 < 0.005 0.07 0.07 < 0.005 0.01 0.01 201 0.01 0.01 0.02 204 Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.78 0.63 4.82 0.01 0.01 0.29 0.30 0.01 0.05 0.06 873 0.06 0.05 0.10 890 Annual — — — — — — — — — — — — — — —
City Park 0.11 0.09 0.65 < 0.005 < 0.005 0.04 0.04 < 0.005 0.01 0.01 111 0.01 0.01 0.22 114 Apartment
s
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.03 0.02 0.14 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 20.0 < 0.005 < 0.005 0.04 20.4 Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.14 0.11 0.80 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 131 0.01 0.01 0.25 134
4.1.2. Mitigated
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 42 / 84
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park 0.60 0.44 3.49 0.01 0.01 0.22 0.23 0.01 0.04 0.05 683 0.04 0.04 3.01 697 Apartment
s
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.18 0.13 1.04 < 0.005 < 0.005 0.07 0.07 < 0.005 0.01 0.01 204 0.01 0.01 0.90 208 Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.78 0.57 4.54 0.01 0.01 0.29 0.30 0.01 0.05 0.06 886 0.06 0.05 3.91 905 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
City Park 0.60 0.48 3.72 0.01 0.01 0.22 0.23 0.01 0.04 0.05 672 0.05 0.04 0.08 685 Apartment
s
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.18 0.14 1.11 < 0.005 < 0.005 0.07 0.07 < 0.005 0.01 0.01 201 0.01 0.01 0.02 204 Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.78 0.63 4.82 0.01 0.01 0.29 0.30 0.01 0.05 0.06 873 0.06 0.05 0.10 890 Annual — — — — — — — — — — — — — — —
City Park 0.11 0.09 0.65 < 0.005 < 0.005 0.04 0.04 < 0.005 0.01 0.01 111 0.01 0.01 0.22 114
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 43 / 84
Apartment
Low Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 High
Turnover
(Sit Down
Restaurant)
0.03 0.02 0.14 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 20.0 < 0.005 < 0.005 0.04 20.4 Health
Club
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total 0.14 0.11 0.80 < 0.005 < 0.005 0.05 0.05 < 0.005 0.01 0.01 131 0.01 0.01 0.25 134
4.2. Energy
4.2.1. Electricity Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — 0.00 0.00 0.00 — 0.00
Apartment
s
Low Rise
— — — — — — — — — — 1.76 < 0.005 < 0.005 — 1.78
Parking Lot — — — — — — — — — — 32.0 0.01 < 0.005 — 32.3 High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 123 0.02 < 0.005 — 125
Health
Club
— — — — — — — — — — 6.76 < 0.005 < 0.005 — 6.83
Total — — — — — — — — — — 164 0.03 < 0.005 — 166
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 44 / 84
Daily, — — — — — — — — — — — — — — —
Winter
(Max)
City Park — — — — — — — — — — 0.00 0.00 0.00 — 0.00
Apartment
s
Low Rise
— — — — — — — — — — 1.76 < 0.005 < 0.005 — 1.78
Parking Lot — — — — — — — — — — 32.0 0.01 < 0.005 — 32.3 High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 123 0.02 < 0.005 — 125
Health
Club
— — — — — — — — — — 6.76 < 0.005 < 0.005 — 6.83
Total — — — — — — — — — — 164 0.03 < 0.005 — 166
Annual — — — — — — — — — — — — — — —
City Park — — — — — — — — — — 0.00 0.00 0.00 — 0.00
Apartment
s
Low Rise
— — — — — — — — — — 0.29 < 0.005 < 0.005 — 0.29
Parking Lot — — — — — — — — — — 5.30 < 0.005 < 0.005 — 5.35 High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 20.4 < 0.005 < 0.005 — 20.6
Health
Club
— — — — — — — — — — 1.12 < 0.005 < 0.005 — 1.13
Total — — — — — — — — — — 27.1 < 0.005 < 0.005 — 27.4
4.2.2. Electricity Emissions By Land Use - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 45 / 84
Daily,
Summer
(Max)
———————————————
City Park—————————— 0.00 0.00 0.00— 0.00
Apartment s
Low Rise
—————————— 1.76 < 0.005 < 0.005— 1.78
Parking Lot—————————— 32.0 0.01 < 0.005— 32.3
High Turnover
(Sit Down
Restaurant)
—————————— 123 0.02 < 0.005— 125
Health
Club
—————————— 6.76 < 0.005 < 0.005— 6.83
Total—————————— 164 0.03 < 0.005— 166
Daily,
Winter
(Max)
———————————————
City Park—————————— 0.00 0.00 0.00— 0.00
Apartment s
Low Rise
—————————— 1.76 < 0.005 < 0.005— 1.78
Parking Lot—————————— 32.0 0.01 < 0.005— 32.3
High Turnover
(Sit Down
Restaurant)
—————————— 123 0.02 < 0.005— 125
Health
Club
—————————— 6.76 < 0.005 < 0.005— 6.83
Total—————————— 164 0.03 < 0.005— 166
Annual———————————————
City Park—————————— 0.00 0.00 0.00— 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 46 / 84
Apartment — — — — — — — — — — 0.29 < 0.005 < 0.005 — 0.29 s
Low Rise
Parking Lot — — — — — — — — — — 5.30 < 0.005 < 0.005 — 5.35 High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 20.4 < 0.005 < 0.005 — 20.6
Health
Club
— — — — — — — — — — 1.12 < 0.005 < 0.005 — 1.13
Total — — — — — — — — — — 27.1 < 0.005 < 0.005 — 27.4
4.2.3. Natural Gas Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 0.01 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 8.59 < 0.005 < 0.005 — 8.61 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 High
Turnover
(Sit Down
Restaurant)
0.01 0.17 0.15 < 0.005 0.01 — 0.01 0.01 — 0.01 206 0.02 < 0.005 — 207 Health
Club
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 16.2 < 0.005 < 0.005 — 16.3 Total 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 231 0.02 < 0.005 — 232 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 47 / 84
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 0.01 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 8.59 < 0.005 < 0.005 — 8.61 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 High
Turnover
(Sit Down
Restaurant)
0.01 0.17 0.15 < 0.005 0.01 — 0.01 0.01 — 0.01 206 0.02 < 0.005 — 207 Health
Club
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 16.2 < 0.005 < 0.005 — 16.3 Total 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 231 0.02 < 0.005 — 232 Annual — — — — — — — — — — — — — — —
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.42 < 0.005 < 0.005 — 1.43 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 High
Turnover
(Sit Down
Restaurant)
< 0.005 0.03 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 34.2 < 0.005 < 0.005 — 34.3 Health
Club
< 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 2.69 < 0.005 < 0.005 — 2.69 Total < 0.005 0.04 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 38.3 < 0.005 < 0.005 — 38.4
4.2.4. Natural Gas Emissions By Land Use - Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 48 / 84
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 0.01 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 8.59 < 0.005 < 0.005 — 8.61 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 High
Turnover
(Sit Down
Restaurant)
0.01 0.17 0.15 < 0.005 0.01 — 0.01 0.01 — 0.01 206 0.02 < 0.005 — 207 Health
Club
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 16.2 < 0.005 < 0.005 — 16.3 Total 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 231 0.02 < 0.005 — 232 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 0.01 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 8.59 < 0.005 < 0.005 — 8.61 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 High
Turnover
(Sit Down
Restaurant)
0.01 0.17 0.15 < 0.005 0.01 — 0.01 0.01 — 0.01 206 0.02 < 0.005 — 207 Health
Club
< 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 16.2 < 0.005 < 0.005 — 16.3 Total 0.01 0.19 0.16 < 0.005 0.01 — 0.01 0.01 — 0.01 231 0.02 < 0.005 — 232 Annual — — — — — — — — — — — — — — —
City Park 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Apartment
s
Low Rise
< 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.42 < 0.005 < 0.005 — 1.43 Parking Lot 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 49 / 84
High
Turnover
(Sit Down
Restaurant)
< 0.005 0.03 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 34.2 < 0.005 < 0.005 — 34.3 Health
Club
< 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 2.69 < 0.005 < 0.005 — 2.69 Total < 0.005 0.04 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 38.3 < 0.005 < 0.005 — 38.4
4.3. Area Emissions by Source
4.3.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Source ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.21 — — — — — — — — — — — — — —
Architectur
al
Coatings
0.06 — — — — — — — — — — — — — —
Landscape
Equipment
0.05 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30 Total 0.32 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30 Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.21 — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 50 / 84
Architectur 0.06 — — — — — — — — — — — — — —
al
Coatings
Total 0.26 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Annual — — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.04 — — — — — — — — — — — — — —
Architectur
al
Coatings
0.01 — — — — — — — — — — — — — —
Landscape
Equipment
< 0.005 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11 Total 0.05 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11
4.3.1. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Source ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.21 — — — — — — — — — — — — — —
Architectur
al
Coatings
0.06 — — — — — — — — — — — — — —
Landscape
Equipment
0.05 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30 Total 0.32 < 0.005 0.33 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 1.30 < 0.005 < 0.005 — 1.30
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 51 / 84
Daily, — — — — — — — — — — — — — — —
Winter
(Max)
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.21 — — — — — — — — — — — — — —
Architectur
al
Coatings
0.06 — — — — — — — — — — — — — —
Total 0.26 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Annual — — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 — 0.00 Consumer
Products
0.04 — — — — — — — — — — — — — —
Architectur
al
Coatings
0.01 — — — — — — — — — — — — — —
Landscape
Equipment
< 0.005 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11 Total 0.05 < 0.005 0.03 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.11 < 0.005 < 0.005 — 0.11
4.4. Water Emissions by Land Use
4.4.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 52 / 84
Daily, — — — — — — — — — — — — — — —
Winter
(Max)
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.4.1. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.5. Waste Emissions by Land Use
4.5.2. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — 1.04 0.10 0.00 — 3.65
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 53 / 84
Apartment
Low Rise
—————————— 0.42 0.04 0.00— 1.46
Parking Lot—————————— 0.00 0.00 0.00— 0.00
High Turnover
(Sit Down
Restaurant)
—————————— 33.3 3.33 0.00— 117
Health
Club
—————————— 3.69 0.37 0.00— 12.9
Total—————————— 38.5 3.85 0.00— 135
Daily,
Winter
(Max)
———————————————
City Park—————————— 1.04 0.10 0.00— 3.65
Apartment s
Low Rise
—————————— 0.42 0.04 0.00— 1.46
Parking Lot—————————— 0.00 0.00 0.00— 0.00
High Turnover
(Sit Down
Restaurant)
—————————— 33.3 3.33 0.00— 117
Health
Club
—————————— 3.69 0.37 0.00— 12.9
Total—————————— 38.5 3.85 0.00— 135
Annual———————————————
City Park—————————— 0.17 0.02 0.00— 0.60
Apartment s
Low Rise
—————————— 0.07 0.01 0.00— 0.24
Parking Lot—————————— 0.00 0.00 0.00— 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 54 / 84
High — — — — — — — — — — 5.52 0.55 0.00 — 19.3
Turnover
(Sit Down
Restaurant)
Health
Club
— — — — — — — — — — 0.61 0.06 0.00 — 2.14
Total — — — — — — — — — — 6.37 0.64 0.00 — 22.3
4.5.1. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — 1.04 0.10 0.00 — 3.65
Apartment
s
Low Rise
— — — — — — — — — — 0.42 0.04 0.00 — 1.46
Parking Lot — — — — — — — — — — 0.00 0.00 0.00 — 0.00
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 33.3 3.33 0.00 — 117
Health
Club
— — — — — — — — — — 3.69 0.37 0.00 — 12.9
Total — — — — — — — — — — 38.5 3.85 0.00 — 135
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — 1.04 0.10 0.00 — 3.65
Apartment
s
Low Rise
— — — — — — — — — — 0.42 0.04 0.00 — 1.46
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 55 / 84
Parking Lot — — — — — — — — — — 0.00 0.00 0.00 — 0.00
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 33.3 3.33 0.00 — 117
Health
Club
— — — — — — — — — — 3.69 0.37 0.00 — 12.9
Total — — — — — — — — — — 38.5 3.85 0.00 — 135
Annual — — — — — — — — — — — — — — —
City Park — — — — — — — — — — 0.17 0.02 0.00 — 0.60
Apartment
s
Low Rise
— — — — — — — — — — 0.07 0.01 0.00 — 0.24
Parking Lot — — — — — — — — — — 0.00 0.00 0.00 — 0.00
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — 5.52 0.55 0.00 — 19.3
Health
Club
— — — — — — — — — — 0.61 0.06 0.00 — 2.14
Total — — — — — — — — — — 6.37 0.64 0.00 — 22.3
4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — — — — 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 56 / 84
Apartment — — — — — — — — — — — — — 0.01 0.01
s
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — — — — 0.00 0.00
Total — — — — — — — — — — — — — 0.01 0.01
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
City Park — — — — — — — — — — — — — 0.00 0.00
Apartment
s
Low Rise
— — — — — — — — — — — — — 0.01 0.01
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — — — — 0.00 0.00
Total — — — — — — — — — — — — — 0.01 0.01
Annual — — — — — — — — — — — — — — —
City Park — — — — — — — — — — — — — 0.00 0.00
Apartment
s
Low Rise
— — — — — — — — — — — — — < 0.005 < 0.005
High
Turnover
(Sit Down
Restaurant)
— — — — — — — — — — — — — 0.00 0.00
Total — — — — — — — — — — — — — < 0.005 < 0.005
4.6.2. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 57 / 84
Daily,
Summer
(Max)
———————————————
City Park————————————— 0.00 0.00
Apartment s
Low Rise
————————————— 0.01 0.01
High Turnover
(Sit Down
Restaurant)
————————————— 0.00 0.00
Total————————————— 0.01 0.01
Daily,
Winter
(Max)
———————————————
City Park————————————— 0.00 0.00
Apartment s
Low Rise
————————————— 0.01 0.01
High Turnover
(Sit Down
Restaurant)
————————————— 0.00 0.00
Total————————————— 0.01 0.01
Annual———————————————
City Park————————————— 0.00 0.00
Apartment s
Low Rise
————————————— < 0.005 < 0.005
High Turnover
(Sit Down
Restaurant)
————————————— 0.00 0.00
Total————————————— < 0.005 < 0.005
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 58 / 84
4.7. Offroad Emissions By Equipment Type
4.7.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.7.2. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — Page —319 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 59 / 84
4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.8.2. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — Page —320 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 60 / 84
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.9.2. Mitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipment
Type
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — Page —321 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 61 / 84
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Vegetation ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 62 / 84
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Species ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 63 / 84
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
4.10.4. Soil Carbon Accumulation By Vegetation Type - Mitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Vegetation ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.10.5. Above and Belowground Carbon Accumulation by Land Use Type - Mitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — Page —324 of 871 —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 64 / 84
Annual — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — —
4.10.6. Avoided and Sequestered Emissions by Species - Mitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Species ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T CO2T CH4 N2O R CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 65 / 84
Avoided — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — —
5. Activity Data
5.1. Construction Schedule
Phase Name Phase Type Start Date End Date Days Per Week Work Days per Phase Phase Description Demolition Demolition 7/1/2023 7/29/2023 5.00 20.0 —
Site Preparation Site Preparation 7/30/2023 8/13/2023 5.00 10.0 — Grading Grading 8/14/2023 10/2/2023 5.00 35.0 —
Building Construction Building Construction 10/3/2023 2/5/2024 5.00 90.0 — Paving Paving 2/6/2024 3/4/2024 5.00 20.0 —
Architectural Coating Architectural Coating 3/5/2024 4/1/2024 5.00 20.0 —
5.2. Off-Road Equipment
5.2.1. Unmitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Demolition Concrete/Industrial
Saws
Diesel Average 1.00 8.00 33.0 0.73
Demolition Excavators Diesel Average 3.00 8.00 36.0 0.38
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 66 / 84
Demolition Rubber Tired Dozers Diesel Average 2.00 8.00 367 0.40 Site Preparation Rubber Tired Dozers Diesel Average 3.00 8.00 367 0.40 Site Preparation Tractors/Loaders/Backh
oes
Diesel Average 4.00 8.00 84.0 0.37
Grading Excavators Diesel Average 2.00 8.00 36.0 0.38
Grading Graders Diesel Average 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Average 1.00 8.00 367 0.40 Grading Scrapers Diesel Average 2.00 8.00 423 0.48
Grading Tractors/Loaders/Backh
oes
Diesel Average 2.00 8.00 84.0 0.37
Building Construction Cranes Diesel Average 1.00 7.00 367 0.29 Building Construction Forklifts Diesel Average 3.00 8.00 82.0 0.20 Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Backh
oes
Diesel Average 3.00 7.00 84.0 0.37
Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45 Paving Pavers Diesel Average 2.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Average 2.00 8.00 89.0 0.36 Paving Rollers Diesel Average 2.00 8.00 36.0 0.38
Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48
5.2.2. Mitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Demolition Concrete/Industrial
Saws
Diesel Average 1.00 8.00 33.0 0.73
Demolition Excavators Diesel Tier 3 3.00 8.00 36.0 0.38 Demolition Rubber Tired Dozers Diesel Tier 3 2.00 8.00 367 0.40 Site Preparation Rubber Tired Dozers Diesel Tier 3 3.00 8.00 367 0.40
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 67 / 84
Site Preparation Tractors/Loaders/Backh Diesel Tier 3 4.00 8.00 84.0 0.37 oes
Grading Excavators Diesel Tier 3 2.00 8.00 36.0 0.38
Grading Graders Diesel Tier 3 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Tier 3 1.00 8.00 367 0.40 Grading Scrapers Diesel Tier 3 2.00 8.00 423 0.48
Grading Tractors/Loaders/Backh
oes
Diesel Tier 3 2.00 8.00 84.0 0.37
Building Construction Cranes Diesel Tier 3 1.00 7.00 367 0.29 Building Construction Forklifts Diesel Tier 3 3.00 8.00 82.0 0.20 Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Backh
oes
Diesel Tier 3 3.00 7.00 84.0 0.37
Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45 Paving Pavers Diesel Tier 3 2.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Tier 3 2.00 8.00 89.0 0.36 Paving Rollers Diesel Tier 3 2.00 8.00 36.0 0.38
Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48
5.3. Construction Vehicles
5.3.1. Unmitigated
Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix Demolition — — — —
Demolition Worker 15.0 8.80 LDA,LDT1,LDT2
Demolition Vendor — 5.30 HHDT,MHDT
Demolition Hauling 0.30 20.0 HHDT
Demolition Onsite truck — — HHDT
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 68 / 84
Site Preparation————
Site Preparation Worker 17.5 8.80 LDA,LDT1,LDT2
Site Preparation Vendor— 5.30 HHDT,MHDT
Site Preparation Hauling 0.00 20.0 HHDT
Site Preparation Onsite truck—— HHDT
Grading————
Grading Worker 20.0 8.80 LDA,LDT1,LDT2
Grading Vendor— 5.30 HHDT,MHDT
Grading Hauling 0.00 20.0 HHDT
Grading Onsite truck—— HHDT
Building Construction————
Building Construction Worker 3.41 8.80 LDA,LDT1,LDT2
Building Construction Vendor 1.16 5.30 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck—— HHDT
Paving————
Paving Worker 15.0 8.80 LDA,LDT1,LDT2
Paving Vendor— 5.30 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck—— HHDT
Architectural Coating————
Architectural Coating Worker 0.68 8.80 LDA,LDT1,LDT2
Architectural Coating Vendor— 5.30 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck—— HHDT
5.3.2. Mitigated
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 69 / 84
Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix Demolition — — — —
Demolition Worker 15.0 8.80 LDA,LDT1,LDT2
Demolition Vendor — 5.30 HHDT,MHDT
Demolition Hauling 0.30 20.0 HHDT
Demolition Onsite truck — — HHDT
Site Preparation — — — —
Site Preparation Worker 17.5 8.80 LDA,LDT1,LDT2
Site Preparation Vendor — 5.30 HHDT,MHDT
Site Preparation Hauling 0.00 20.0 HHDT
Site Preparation Onsite truck — — HHDT
Grading — — — —
Grading Worker 20.0 8.80 LDA,LDT1,LDT2
Grading Vendor — 5.30 HHDT,MHDT
Grading Hauling 0.00 20.0 HHDT
Grading Onsite truck — — HHDT
Building Construction — — — —
Building Construction Worker 3.41 8.80 LDA,LDT1,LDT2
Building Construction Vendor 1.16 5.30 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck — — HHDT
Paving — — — —
Paving Worker 15.0 8.80 LDA,LDT1,LDT2
Paving Vendor — 5.30 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck — — HHDT
Architectural Coating — — — —
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 70 / 84
Architectural Coating Worker 0.68 8.80 LDA,LDT1,LDT2
Architectural Coating Vendor — 5.30 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck — — HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Non-applicable. No control strategies activated by user.
5.5. Architectural Coatings
Phase Name Residential Interior Area Coated
(sq ft)
Residential Exterior Area Coated
(sq ft)
Non-Residential Interior Area
Coated (sq ft)
Non-Residential Exterior Area
Coated (sq ft)
Parking Area Coated (sq ft)
Architectural Coating 3,777 1,259 11,400 3,800 3,920
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Phase Name Material Imported (cy) Material Exported (cy) Acres Graded (acres) Material Demolished (Building Square Footage)
Acres Paved (acres)
Demolition 0.00 0.00 0.00 500 —
Site Preparation — — 15.0 0.00 —
Grading — — 105 0.00 —
Paving 0.00 0.00 0.00 0.00 1.50
5.6.2. Construction Earthmoving Control Strategies
Control Strategies Applied Frequency (per day) PM10 Reduction PM2.5 Reduction Water Exposed Area 3 74% 74%
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 71 / 84
Water Demolished Area 2 36% 36%
5.7. Construction Paving
Land Use Area Paved (acres) % Asphalt
City Park 0.00 0%
Apartments Low Rise — 0%
Parking Lot 1.50 100%
High Turnover (Sit Down Restaurant) 0.00 0%
Health Club 0.00 0%
5.8. Construction Electricity Consumption and Emissions Factors kWh per Year and Emission Factor (lb/MWh)
Year kWh per Year CO2 CH4 N2O
2023 0.00 204 0.03 < 0.005
2024 0.00 204 0.03 < 0.005
5.9. Operational Mobile Sources
5.9.1. Unmitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Year VMT/Weekday VMT/Saturday VMT/Sunday VMT/Year City Park 134 134 134 48,947 810 810 810 295,717
Apartments Low
Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
High Turnover (Sit
Down Restaurant)
40.0 40.0 40.0 14,596 101 242 242 51,580
Health Club 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 72 / 84
5.9.2. Mitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Year VMT/Weekday VMT/Saturday VMT/Sunday VMT/Year City Park 134 134 134 48,947 810 810 810 295,717
Apartments Low
Rise
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
High Turnover (Sit
Down Restaurant)
40.0 40.0 40.0 14,596 101 242 242 51,580
Health Club 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5.10. Operational Area Sources
5.10.1. Hearths
5.10.1.1. Unmitigated
Hearth Type Unmitigated (number)
Apartments Low Rise —
Wood Fireplaces 0
Gas Fireplaces 0
Propane Fireplaces 0
Electric Fireplaces 0
No Fireplaces 1
Conventional Wood Stoves 0
Catalytic Wood Stoves 0
Non-Catalytic Wood Stoves 0
Pellet Wood Stoves 0
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 73 / 84
5.10.1.2. Mitigated
Hearth Type Unmitigated (number)
Apartments Low Rise —
Wood Fireplaces 0
Gas Fireplaces 0
Propane Fireplaces 0
Electric Fireplaces 0
No Fireplaces 1
Conventional Wood Stoves 0
Catalytic Wood Stoves 0
Non-Catalytic Wood Stoves 0
Pellet Wood Stoves 0
5.10.2. Architectural Coatings
Residential Interior Area Coated (sq ft) Residential Exterior Area Coated (sq ft) Non-Residential Interior Area Coated (sq ft)
Non-Residential Exterior Area Coated
(sq ft)
Parking Area Coated (sq ft)
3776.625 1,259 11,400 3,800 3,920
5.10.3. Landscape Equipment
Season Unit Value
Snow Days day/yr 0.00
Summer Days day/yr 180
5.10.4. Landscape Equipment - Mitigated
Season Unit Value
Snow Days day/yr 0.00
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 74 / 84
Summer Days day/yr 180
5.11. Operational Energy Consumption
5.11.1. Unmitigated
Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr) Land Use Electricity (kWh/yr) CO2 CH4 N2O Natural Gas (kBTU/yr) City Park 0.00 204 0.0330 0.0040 0.00
Apartments Low Rise 3,155 204 0.0330 0.0040 26,793
Parking Lot 57,238 204 0.0330 0.0040 0.00
High Turnover (Sit Down
Restaurant)
220,754 204 0.0330 0.0040 644,115
Health Club 12,103 204 0.0330 0.0040 50,633
5.11.2. Mitigated
Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr) Land Use Electricity (kWh/yr) CO2 CH4 N2O Natural Gas (kBTU/yr) City Park 0.00 204 0.0330 0.0040 0.00
Apartments Low Rise 3,155 204 0.0330 0.0040 26,793
Parking Lot 57,238 204 0.0330 0.0040 0.00
High Turnover (Sit Down
Restaurant)
220,754 204 0.0330 0.0040 644,115
Health Club 12,103 204 0.0330 0.0040 50,633
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
Land Use Indoor Water (gal/year) Outdoor Water (gal/year)
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 75 / 84
5.12.2. Mitigated
Land Use Indoor Water (gal/year) Outdoor Water (gal/year)
5.13. Operational Waste Generation
5.13.1. Unmitigated
Land Use Waste (ton/year) Cogeneration (kWh/year)
City Park 1.93 —
Apartments Low Rise 0.78 —
Parking Lot 0.00 —
High Turnover (Sit Down Restaurant) 61.9 —
Health Club 6.84 —
5.13.2. Mitigated
Land Use Waste (ton/year) Cogeneration (kWh/year)
City Park 1.93 —
Apartments Low Rise 0.78 —
Parking Lot 0.00 —
High Turnover (Sit Down Restaurant) 61.9 —
Health Club 6.84 —
5.14. Operational Refrigeration and Air Conditioning Equipment
5.14.1. Unmitigated
Land Use Type Equipment Type Refrigerant GWP Quantity (kg) Operations Leak Rate Service Leak Rate Times Serviced
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 76 / 84
City Park Stand-alone retail R-134a 1,430 0.04 1.00 0.00 1.00 refrigerators and
freezers
Apartments Low Rise Average room A/C &
Other residential A/C
and heat pumps
R-410A 2,088 < 0.005 2.50 2.50 10.0
Apartments Low Rise Household refrigerators
and/or freezers
R-134a 1,430 0.12 0.60 0.00 1.00
High Turnover (Sit
Down Restaurant)
Household refrigerators
and/or freezers
R-134a 1,430 0.00 0.60 0.00 1.00
5.14.2. Mitigated
Land Use Type Equipment Type Refrigerant GWP Quantity (kg) Operations Leak Rate Service Leak Rate Times Serviced City Park Stand-alone retail
refrigerators and
freezers
R-134a 1,430 0.04 1.00 0.00 1.00
Apartments Low Rise Average room A/C &
Other residential A/C
and heat pumps
R-410A 2,088 < 0.005 2.50 2.00 10.0
Apartments Low Rise Household refrigerators
and/or freezers
R-134a 1,430 0.12 0.60 — 1.00
High Turnover (Sit
Down Restaurant)
Household refrigerators
and/or freezers
R-134a 1,430 0.00 0.60 0.00 1.00
5.15. Operational Off-Road Equipment
5.15.1. Unmitigated
Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor
5.15.2. Mitigated
Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 77 / 84
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
Equipment Type Fuel Type Number per Day Hours per Day Hours per Year Horsepower Load Factor
5.16.2. Process Boilers
Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr) Daily Heat Input (MMBtu/day) Annual Heat Input (MMBtu/yr)
5.17. User Defined
Equipment Type Fuel Type
— —
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres
5.18.1.2. Mitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
Biomass Cover Type Initial Acres Final Acres
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 78 / 84
5.18.1.2. Mitigated
Biomass Cover Type Initial Acres Final Acres
5.18.2. Sequestration
5.18.2.1. Unmitigated
Tree Type Number Electricity Saved (kWh/year) Natural Gas Saved (btu/year)
5.18.2.2. Mitigated
Tree Type Number Electricity Saved (kWh/year) Natural Gas Saved (btu/year)
6. Climate Risk Detailed Report
6.1. Climate Risk Summary
Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which assumes GHG emissions will continue to rise strongly through 2050 and then plateau around 2100.
Climate Hazard Result for Project Location Unit
Temperature and Extreme Heat 10.8 annual days of extreme heat Extreme Precipitation 7.20 annual days with precipitation above 20 mm Sea Level Rise 0.00 meters of inundation depth
Wildfire 42.2 annual hectares burned
Temperature and Extreme Heat data are for grid cell in which your project are located. The projection is based on the 98th historical percentile of daily maximum/minimum temperatures from observed historical data (32 climate model ensemble from Cal-Adapt, 2040–2059 average under RCP 8.5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Extreme Precipitation data are for the grid cell in which your project are located. The threshold of 20 mm is equivalent to about ¾ an inch of rain, which would be light to moderate rainfall if received over a full day or heavy rain if received over a period of 2 to 4 hours. Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Sea Level Rise data are for the grid cell in which your project are located. The projections are from Radke et al. (2017), as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider different increments of sea level rise coupled with extreme storm events. Users may select from four model simulations to view the range in potential inundation depth for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 50 meters (m) by 50 m, or about 164 feet (ft) by 164 ft.
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 79 / 84
Wildfire data are for the grid cell in which your project are located. The projections are from UC Davis, as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider historical data of climate, vegetation, population density, and large (> 400 ha) fire history. Users may select from four model simulations to view the range in potential wildfire probabilities for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
6.2. Initial Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Flooding N/A N/A N/A N/A
Drought 0 0 0 N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation N/A N/A N/A N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures.
6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding N/A N/A N/A N/A
Drought 1 1 1 2
Snowpack Reduction N/A N/A N/A N/A
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 80 / 84
Air Quality Degradation N/A N/A N/A N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction measures.
6.4. Climate Risk Reduction Measures
7. Health and Equity Details
7.1. CalEnviroScreen 4.0 Scores
The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state.
Indicator Result for Project Census Tract
Exposure Indicators —
AQ-Ozone 11.6
AQ-PM 5.49
AQ-DPM 4.74
Drinking Water 74.4
Lead Risk Housing 24.6
Pesticides 80.6
Toxic Releases 7.85
Traffic 9.24
Effect Indicators —
CleanUp Sites 27.5
Groundwater 91.8
Haz Waste Facilities/Generators 61.6
Impaired Water Bodies 77.3
Solid Waste 95.0
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 81 / 84
Sensitive Population —
Asthma 21.7
Cardio-vascular 22.9
Low Birth Weights 46.5
Socioeconomic Factor Indicators —
Education 54.8
Housing 16.3
Linguistic 33.3
Poverty 29.2
Unemployment 19.6
7.2. Healthy Places Index Scores
The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
Indicator Result for Project Census Tract
Economic —
Above Poverty 51.81573207
Employed 89.04144745
Median HI 57.39766457
Education —
Bachelor's or higher 52.99627871
High school enrollment 8.995252149
Preschool enrollment 79.78955473
Transportation —
Auto Access 76.73553189
Active commuting 34.12036443
Social —
2-parent households 98.02386757
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 82 / 84
Voting 95.64994226
Neighborhood —
Alcohol availability 42.91030412
Park access 29.57782625
Retail density 4.131913255
Supermarket access 27.678686
Tree canopy 56.03746952
Housing —
Homeownership 70.96111895
Housing habitability 39.17618375
Low-inc homeowner severe housing cost burden 39.58680867 Low-inc renter severe housing cost burden 27.78134223
Uncrowded housing 43.53907353
Health Outcomes —
Insured adults 38.07262928
Arthritis 0.0
Asthma ER Admissions 83.7
High Blood Pressure 0.0
Cancer (excluding skin) 0.0
Asthma 0.0
Coronary Heart Disease 0.0
Chronic Obstructive Pulmonary Disease 0.0
Diagnosed Diabetes 0.0
Life Expectancy at Birth 44.2
Cognitively Disabled 88.7
Physically Disabled 74.5
Heart Attack ER Admissions 64.6
Buellton Willemsen Park Addition Detailed Report, 4/24/2023 83 / 84
Mental Health Not Good 0.0
Chronic Kidney Disease 0.0
Obesity 0.0
Pedestrian Injuries 60.6
Physical Health Not Good 0.0
Stroke 0.0
Health Risk Behaviors—
Binge Drinking 0.0
Current Smoker 0.0
No Leisure Time for Physical Activity 0.0
Climate Change Exposures—
Wildfire Risk 0.2
SLR Inundation Area 0.0
Children 67.0
Elderly 27.8
English Speaking 67.2
Foreign-born 28.6
Outdoor Workers 53.6
Climate Change Adaptive Capacity—
Impervious Surface Cover 87.6
Traffic Density 11.4
Traffic Access 0.0
Other Indices—
Hardship 38.1
Other Decision Support—
2016 Voting 95.7