Attachment 6I- CPC Report and Exhibits — Riverside City Council, September 5, 2023

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX F

Specific Water Quality Management Plan
(PSOMAS, December 2022)

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 1 -
Project Specific Water Quality Management Plan
A Template for Projects located within the Santa Ana Watershed Region of Riverside County Project Title: Madison Residential
Development No:

De
sign Review/Case No:

Ori
ginal Date Prepared: December 8, 2022
Revision Date(s):

Prepared for Compliance with
Reg
ional Board Order No. R8-2010-0033
C
ontact Information:

Prepared for: Gilbane Development
Com
pany
1100 N. Glebe Road, Suite 100
Arlington, VA 22201
Tel: (
Attn: Blaise Rastello
Prep
ared by: PSOMAS
165
0 Spruce Street, Suite 400
Riverside, CA 92507
Tel: (951) 300-2805
Attn: David I. Brotchie
Preliminary
Final
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 2 -

OWNER’S CERTIFICATION

Th
is Project-Specific Water Quality Management Plan (WQMP) has been prepared for Gilbane Development Company by PSOMAS for the Madison Residential project.

This WQMP is intended to comply with the requirements of City of Riverside for Design Review which includes the requirement for the preparation and implementation of a Project-Specific WQMP.

The undersigned, while owning the property/project described in the preceding paragraph, shall be responsible for the implementation and funding of this WQMP and will ensure that this WQMP is amended as appropriate to reflect up- to-date conditions on the site. In addition, the property owner accepts responsibility for interim operation and maintenance of Stormwater BMPs until such time as this responsibility is formally transferred to a subsequent owner.

This WQMP will be reviewed with the facility operator, facility supervisors, employees, tenants, maintenance and service contractors, or any other party (or parties) having responsibility for implementing portions of this WQMP. At least one copy of this WQMP will be maintained at the project site or project office in perpetuity. The undersigned is authorized to certify and to approve implementation of this WQMP. The undersigned is aware that implementation of this WQMP is enforceable under the City of Riverside Water Quality Ordinance (Municipal Code Section 14 .12.315).
"I, the undersigned, certify under penalty of law that the provisions of this WQMP have been reviewed and accepted and that the WQMP will be transferred to future successors in interest."

Owner’s Signature Date

Gilabane Development Comapny
Owner’s Printed Name Owner’s Title/Position

PR
EPARER’S CERTIFICATION

“T
he selection, sizing and design of stormwater treatment and other stormwater quality and quantity control measures in this plan meet the requirements of Regional Water Quality Control Board Order No. R8-2010-0033 and any subsequent amendments thereto.”

Preparer’s Signature Date

Psomas- David I. Brotchie Senior Project Manager, PE C62005 Preparer’s Printed Name Preparer’s Title/Position

Preparer’s Licensure:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 3 -

Table of Contents
Section A: Project and Site Information........................................................................................................ 6 A.
1 Maps and Site Plans ............................................................................................................................ 6 A.2 Identify Receiving Waters ................................................................................................................... 6 A.3 Additional Permits/Approvals required for the Project: .................................................................... 7 Section B: Optimize Site Utilization (LID Principles) ..................................................................................... 8 Section C: Delineate Drainage Management Areas (DMAs) ......................................................................... 9 Section D: Implement LID BMPs ................................................................................................................. 10 D.1 Infiltration Applicability .................................................................................................................... 10 D.2 Harvest and Use Assessment ............................................................................................................ 12 D.3 Bioretention and Biotreatment Assessment .................................................................................... 14 D.4 Feasibility Assessment Summaries ................................................................................................... 15 D.5 LID BMP Sizing .................................................................................................................................. 15 Section E: Alternative Compliance (LID Waiver Program) .......................................................................... 17 Section F: Hydromodification ..................................................................................................................... 18 F.1 Hydrologic Conditions of Concern (HCOC) Analysis .......................................................................... 18 F.2 HCOC Mitigation ................................................................................................................................ 19 Section G: Source Control BMPs ................................................................................................................. 19 Section H: Construction Plan Checklist ....................................................................................................... 22 Section I: Operation, Maintenance and Funding ........................................................................................ 23

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 4 -

List of Tables
Table A.1 Identification of Receiving Waters ................................................................................................ 7 Tab
le A.2 Other Applicable Permits .............................................................................................................. 7 Table C.1 DMA Classifications ....................................................................................................................... 9 Table C.2 Type ‘A’, Self-Treating Areas ......................................................................................................... 9 Table C.3 Type ‘B’, Self-Retaining Areas ....................................................................................................... 9 Table C.4 Type ‘C’, Areas that Drain to Self-Retaining Areas ...................................................................... 10 Table C.5 Type ‘D’, Areas Draining to BMPs ............................................................................................... 10 Table D.1 Infiltration Feasibility .................................................................................................................. 10 Table D.2 LID Prioritization Summary Matrix ............................................................................................. 15 Table D.3 DCV Calculations for LID BMPs ................................................................................................... 15 Table F.1 Hydrologic Conditions of Concern Summary .............................................................................. 18 Table G.1 Permanent and Operational Source Control Measures ............................................................. 20 Table H.1 Construction Plan Cross-reference ............................................................................................. 22

List of Appendices
Appendix 1: Maps and Site Plans ................................................................................................................ 24 Ap
pendix 2: Construction Plans .................................................................................................................. 25 Appendix 3: Soils Information ..................................................................................................................... 26 Appendix 4: Historical Site Conditions ........................................................................................................ 27 Appendix 5: LID Infeasibility ........................................................................................................................ 28 Appendix 6: BMP Design Details ................................................................................................................. 29 Appendix 7: Hydromodification .................................................................................................................. 30 Appendix 8: Source Control ........................................................................................................................ 31 Appendix 9: O&M ....................................................................................................................................... 32 Appendix 10: Educational Materials ......................................................................................................... - 6 -

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 6 -

Section A: Project and Site Information

PROJECT INFORMATION
Type of Project: Multi Family Residential
Planning Area: Ward 4, City of Riverside, County of Riverside Community Name: Casa Blanca
Development Name: Madison Residential

PROJECT LOCATION
Latitude & Longitude (DMS): 33°55’55”W , 117°24’20”
Project Watershed and Sub-Watershed: Santa Ana Reach 3
Gross Acres: 3.72 acres
APN(s): 230-245-015, 230-233-013, 230-245-013, & 230-253-010 Map Book and Page No.: BK 230 / 23

PROJECT CHARACTERISTICS
Proposed or Potential Land Use(s) Multi Family Residential Proposed or Potential SIC Code(s) N/A
Area of Impervious Project Footprint (SF) 123,424 S.F
Total Area of proposed Impervious Surfaces within the Project Footprint (SF)/or Replacement 123,424 S.F Does the project consist of offsite road improvements? Y N Does the project propose to construct unpaved roads? Y N Is the project part of a larger common plan of development (phased project)? Y N

EXISTING SITE CHARACTERISTICS
Total area of existing Impervious Surfaces within the Project limits Footprint (SF) 0 S.F Is the project located within any MSHCP Criteria Cell? Y N If so, identify the Cell number:

Are there any natural hydrologic features on the project site? Y N Is a Geotechnical Report attached? Y N
If no Geotech. Report, list the NRCS soils type(s) present on the site (A, B, C and/or D) B and C What is the Water Quality Design Storm Depth for the project? 0.54 in.

A.1 Maps and Site Plans
When completing your Project-Specific WQMP, include a map of the local vicinity and existing site. In add
ition, include all grading, drainage, landscape/plant palette and other pertinent construction plans in Appendix 2. At a minimum, your WQMP Site Plan should include the following:

• Drainage Management Areas
• Proposed Structural BMPs
• Drainage Path
• Drainage Infrastructure, Inlets, Overflows
• Source Control BMPs
• Buildings, Roof Lines, Downspouts
• Impervious Surfaces
• Standard Labeling
• BMP Locations (Lat/Long)
A.2 Identify Receiving Waters
Using Table A.1 below, list in order of upstream to downstream, the receiving waters that the project site is
tributary to. Continue to fill each row with the Receiving Water’s 303(d) listed impairments (if any), PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 7 -

designated beneficial uses, and proximity, if any, to a RARE beneficial use. Include a map of the receiving waters in Appendix 1.

Table A.1 Identification of Receiving Waters
Receiving Waters EPA Approved 303(d) List
Impairments
Designated
Beneficial Uses
Proximity to RARE
Beneficial Use
Santa Ana River, Reach 3 Copper, Indicator Bacteria, Lead AGR, GWR, REC1, REC2, WARM, WILD, RARE Santa Ana River, Reach 2 AGR, GWR, REC1, REC2, WARM, WILD, RARE, SPWN
Santa Ana River, Reach 1 REC1, REC2

A.3 Additional Permits/Approvals required for the Project:

T
able A.2 Other Applicable Permits
Agency Permit Required
State Department of Fish and Game, 1602 Streambed Alteration Agreement Y N State Water Resources Control Board, Clean Water Act (CWA) Section 401 Water Quality Cert. Y N US Army Corps of Engineers, CWA Section 404 Permit Y N US Fish and Wildlife, Endangered Species Act Section 7 Biological Opinion Y N Statewide Construction General Permit Coverage Y N
Statewide Industrial General Permit Coverage Y N
Western Riverside MSHCP Consistency Approval (e.g., JPR, DBESP) Y N Other (please list in the space below as required)
City of Riverside Conditional Use Permit
City of Riverside Design Review
City of Riverside Building Permit
City of Riverside Grading Permit
City of Riverside Construction Permit
Y
Y
Y
Y
Y
N
N
N
N
N

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 8 -

Section B: Op timize Site Utilization (LID Principles)
Review of the information collected in Section ‘A’ will aid in identifying the principal constraints on
site design and selection of LID BMPs as well as opportunities to reduce imperviousness and incorporate LID Principles into the site and landscape design. For example, constraints might in
clude impermeable soils, high groundwater, groundwater pollution or contaminated soils, steep slopes, geotechnical instability, high-intensity land use, heavy pedestrian or vehicular traffic, utility locations or safety concerns. Opportunities might include existing natural areas, low areas, od
dly configured or otherwise unbuildable parcels, easements and landscape amenities including open space and buffers (which can double as locations for bioretention BMPs), and differences in elevation (which can provide hydraulic head). Prepare a brief narrative for each of the site optimization strategies described below. This narrative will help you as you proceed with your LID design and explain your design decisions to others.

The 2010 Santa Ana MS4 Permit further requires that LID Retention BMPs (Infiltration Only or Harvest and Use) be used unless it can be shown that those BMPs are infeasible. Therefore, it is important that your narrative identify and justify if there are any constraints that would prevent the use of those categories of LID BMPs. Similarly, you should also note opportunities that exist which will be utilized during project design. Upon completion of identifying Constraints and Opportunities, include these on your WQMP Site plan in Appendix 1.

Consideration of “highest and best use” of the discharge should also be considered. For example, Lake Elsinore is evaporating faster than runoff from natural precipitation can recharge it.

Requiring infiltration of 85% of runoff events for projects tributary to Lake Elsinore would only exacerbate current water quality problems associated with Pollutant concentration due to lake water evaporation. In cases where rainfall events have low potential to recharge Lake Elsinore (i.e. no hydraulic connection between groundwater to Lake Elsinore, or other factors), requiring infiltration of Urban Runoff from projects is counterproductive to the overall watershed goals.

Project proponents, in these cases, would be allowed to discharge Urban Runoff, provided they used equally effective filtration-based BMPs.

Site Optimization
The following questions are based upon Section 3.2 of the WQMP Guidance Document. Review of
the WQMP Guidance Document will help you determine how best to optimize your site and subsequently identify opportunities and/or constraints, and document compliance.

Did you identify and preserve existing drainage patterns? If so, how? If not, why? Yes, the site keeps the drainage with half proceeding northeast and the other half proceeding southwest. The northeast does not connect to any City storm drain system. It currently sits and infiltrates. The southwest discharges to Railroad Avenue and into the City storm drain system.

Did you identify and protect existing vegetation? If so, how? If not, why? Vegetation has been identified; however, the existing vegetation is proposed for demolition to fit within the new site plan. The existing vegetation does not meet current development standards and will need to be removed. New drought tolerant landscaping is proposed throughout the site.

Did you identify and preserve natural infiltration capacity? If so, how? If not, why? A preliminary Geotechnical study is currently being prepared. However, based on discussions with Torrent, there are various drywells since there infiltration rates are adequate.

Did you identify and minimize impervious area? If so, how? If not, why? PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 9 -

The current site is undeveloped. Therefore, the proposed impervious area is greater than the ex
isting.

Did you identify and disperse runoff to adjacent pervious areas? If so, how? If not, why? Yes, the drainage from the building roods and interior roadways will be collected and sent to an underground 48” storm drain system and into injection drywells.

Section C: Delin
eate Drainage Management Areas
(DMAs)
Utilizing the procedure in Section 3.3 of the WQMP Guidance Document which discusses the me
thods of delineating and mapping your project site into individual DMAs, complete Table C.1 below to appropriately categorize the types of classification (e.g., Type A, Type B, etc.) per DMA for your project site. Upon completion of this table, this information will then be used to populate and tabulate the corresponding tables for their respective DMA classifications.

Table C.1 DMA
Classifications
DMA Name or ID Surface Type(s)12 Area (Sq. Ft.) DMA Type M1A Concrete or
Asphalt/Roofs
31,955 D
M1A Ornamental Landscape 12,427 A
M2A Concrete or
Asphalt/Roofs
41,933 D
M2A Ornamental Landscape 16,307 A
M3A Concrete or
Asphalt/Roofs
42,021 D
M3A Ornamental Landscape 16,342 A
1Reference Table 2-1 in the WQMP Guidance Document to populate this column 2If multi-surface provide back-up

Table C.2 Type ‘A’, Self-Treating Areas
DMA Name or ID Area (Sq. Ft.) Stabilization Type Irrigation Type (if any) M1A 12,427 Landscape Per Landscape Architect’s Approved Plans M2A 16,307 Landscape Per Landscape Architect’s Approved Plans M3A 16,342 Landscape Per Landscape Architect’s Approved Plans

Table C.3 Type ‘B’, Self-Retaining Areas
Self-Retaining Area
Type ‘C’ DMAs that are draining to the Self- Retaining
Area
DMA
Name/ ID
Post-project
surface type
Area
(square
feet)
Storm
Depth
(inches) DMA Name /
ID
[C] from Table C.4
=
Required Retention Depth
(inches)
[A] [B] [C] [D]
N/A
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 10 -

Table C.4 Type ‘C’, Areas that Drain to Self-Retaining Areas DMA Receiving Self-Retaining DMA
DMA Name/ ID
Area
(square feet)
Post-project
surface type
Impervious
fraction
Product
DMA name /ID
Area (square
feet) Ratio
[A] [B] [C] = [A] x [B] [D] [C]/[D]
N/A

Table C.5 Type ‘D’, Areas Draining to BMPs
DMA Name or ID BMP Name or ID
M1A M1A
M2A M2A
M3A M3A
Note: More than one drainage management area can drain to a single LID BMP, however, one drainage management area may not drain to more than one BMP.

Section D: Imp lement LID BMPs
D.1 Infiltration Applicability
Is there an approved downstream ‘Highest and Best Use’ for stormwater runoff (see discussion in Chapter

2. 4.4 of the WQMP Guidance Document for further details)? Y N

Geotechnical Report
A
Geotechnical Report is required by the City of Riverside to confirm present and past site characteristics that may affect the use of Infiltration BMPs. A Geotechnical report is currently being prepared.

Is this project classified as a small project consistent with the requirements of Chapter 2 of the WQMP Guidance Document?
Y N
Infiltration Feasibility
Table D.1 below is meant to provide a simple means of assessing which DMAs on your site support Infiltration BMPs and is discussed in the WQMP Guidance Document in Chapter 2.4.5. Check the appropriate box for each question and then list affected DMAs as applicable. If additional space is needed, add a row below the corresponding answer.

Table D.1 Infiltration Feasibility
Does the project site… YES NO
…have any DMAs with a seasonal high groundwater mark shallower than 10 feet? X If Yes, list affected DMAs:
…have any DMAs located within 100 feet of a water supply well? X If Yes, list affected DMAs:
…have any areas identified by the geotechnical report as posing a public safety risk where infiltration of stormwater could have a negative impact?
X
If Yes, list affected DMAs:
…have measured in-situ infiltration rates of less than 1.6 inches / hour? X PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 11 -

If Yes, list affected DMAs:
…have significant cut and/or fill conditions that would preclude in-situ testing of infiltration rates at the final infiltration surface?
X
If Yes, list affected DMAs:
…geotechnical report identify other site-specific factors that would preclude effective and safe infiltration? X Describe here:

A Geotechnical Report is currently being prepared.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 12 -

D.2 Harvest and Use Assessment
Please check what applies:

☐ Reclaimed water will be used for the non-potable water demands for the project. ☐Downstream water rights may be impacted by Harvest and Use as approved by the Regional Board (verify with the Copermittee).
☐The Design Capture Volume will be addressed using Infiltration Only BMPs. In such a case, Harvest and Use BMPs are still encouraged, but it would not be required if the Design Capture Volume will be infiltrated or evapotranspired.

If any of the above boxes have been checked, Harvest and Use BMPs need not be assessed for the site. If none of the above criteria applies, follow the steps below to assess the feasibility of irrigation use, toilet use and other non-potable uses (e.g., industrial use).

Irrigation Use Feasibility
Co
mplete the following steps to determine the feasibility of harvesting stormwater runoff for Irrigation Use BMPs on your site:

Step 1: Identify the total area of irrigated landscape on the site, and the type of landscaping used.

Total Area of Irrigated Landscape : 1.1 acres
Type of Landscaping (Conservation Design or Active Turf) : Conservation Design Step 2: Identify the planned total of all impervious areas on the proposed project from which runoff might be feasibly captured and stored for irrigation use. Depending on the configuration of buildings and other impervious areas on the site, you may consider the site as a whole, or parts of the site, to evaluate reasonable scenarios for capturing and storing runoff and directing the stored runoff to the potential use(s) identified in Step 1 above.

Total Area of Impervious Surfaces: 2.83 acres
Step 3: Cross reference the Design Storm depth for the project site (see Exhibit A of the WQMP Guidance Document) with the left column of Table 2-3 in Chapter 2 to determine the minimum area of Effective Irrigated Area per Tributary Impervious Area (EIATIA).

Enter your EIATIA factor : 0.52
Step 4: Multiply the unit value obtained from Step 3 by the total of impervious areas from Step 2 to develop the minimum irrigated area that would be required.

Minimum required irrigated area : 1.47 acres
Step 5: Determine if harvesting stormwater runoff for irrigation use is feasible for the project by comparing the total area of irrigated landscape (Step 1) to the minimum required irrigated area (Step 4).

Minimum required irrigated area (Step 4) Available Irrigated Landscape (Step 1)

1.47 acres 1.1 acres

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 13 -

Toilet Use Feasibility
Complete the following steps to determine the feasibility of harvesting stormwater runoff for toilet flus
hing uses on your site:

Step 1: Identify the projected total number of daily toilet users during the wet season, and account for any periodic shut downs or other lapses in occupancy:

Projected Number of Daily Toilet Users: Approximately 1000 Project Type: Approx 75% Residential
Step 2: Identify the planned total of all impervious areas on the proposed project from which runoff might be feasibly captured and stored for toilet use. Depending on the configuration of buildings and other impervious areas on the site, you may consider the site as a whole, or parts of the site, to evaluate reasonable scenarios for capturing and storing runoff and directing the stored runoff to the potential use(s) identified in Step 1 above.

Total Area of Impervious Surfaces: 2.83 acres
Step 3: Enter the Design Storm depth for the project site (see Exhibit A) into the left column of Table 2- 2 in Chapter 2 to determine the minimum number or toilet users per tributary impervious acre (TUTIA).

Enter your TUTIA factor: 93
Step 4: Multiply the unit value obtained from Step 3 by the total of impervious areas from Step 2 to develop the minimum number of toilet users that would be required.

Minimum number of toilet users: 272
Step 5: Determine if harvesting stormwater runoff for toilet flushing use is feasible for the project by comparing the Number of Daily Toilet Users (Step 1) to the minimum required number of toilet users (Step 4).

Minimum required Toilet Users (Step 4) Projected number of toilet users (Step 1) 272 1000

Other Non-Potable Use Feasibility
Ar
e there other non-potable uses for stormwater runoff on the site (e.g. industrial use)? See Chapter 2 of the Guidance for further information. If yes, describe below. If no, write N/A.

N/A

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 14 -

D.3 Bioretention and Biotreatment Assessment
Other LID Bioretention and Biotreatment BMPs as described in Chapter 2.4.7 of the WQMP Guidance Do
cument are feasible on nearly all development sites with sufficient advance planning.

Select one of the following:
☐ LID Bioretention/Biotreatment BMPs will be used for some or all DMAs of the project as noted below in Section D.4 (note the requirements of Section 3.4.2 in the WQMP Guidance Document). ☐ A site-specific analysis demonstrating the technical infeasibility of all LID BMPs has been performed and is included in Appendix 5. If you plan to submit an analysis demonstrating the technical infeasibility of LID BMPs, request a pre-submittal meeting with the Copermittee to discuss this option. Proceed to Section E to document your alternative compliance measures. ☒ None of the above

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 15 -

D.4 Feasibility Assessment Summaries
From the Infiltration, Harvest and Use, Bioretention and Biotreatment Sections above, complete Table D.2 be
low to summarize which LID BMPs are technically feasible, and which are not, based upon the established hierarchy.

Table D.2 LID Prioritization Summary Matrix
DMA
Name/ID
LID BMP Hierarchy No LID
(Alternative
Compliance) 1. Infiltration 2. Harvest and use 3. Bioretention

4. Biotreatment
M1A
M2A
M3A
D.5 LID BMP Sizing
Each LID BMP must be designed to ensure that the Design Capture Volume will be addressed by the se
lected BMPs. First, calculate the Design Capture Volume for each LID BMP using the V BMP worksheet in Ap
pendix F of the LID BMP Design Handbook. Second, design the LID BMP to meet the required VBMP using a m
ethod approved by the Copermittee. Utilize the worksheets found in the LID BMP Design Handbook or consult with your Copermittee to assist you in correctly sizing your LID BMPs. Complete Table D.3 below to document the Design Capture Volume and the Proposed Volume for each LID BMP. Provide the completed design procedure sheets for each LID BMP in Appendix 6. You may add additional rows to the table below as needed.

Table D.3 DCV
Calculations for LID BMPs
DMA
Type/ID
DMA
Area
(square
feet)
Post-Project
Surface Type
Effective
Impervio
us
Fraction,
If
DMA
Run
off
Fact
or
DMA
Areas x
Runoff
Factor Enter BMP Name / Identifier Here
[A] [B] [C] [A] x
[C]
M1A 31,955 Concrete or
As
phalt/ Roofs

1.00 0.89 28,503
Design
Storm
Depth
(in)
Design
Capture
Volume, VBMP
(cubic feet)
Proposed
Volume
on Plans
(cubic
feet)
M1A 12,427 Ornamental
Landscape

0.10 0.11 1372
44,382 29,877 0.54 1,344 1,583

DMA
Type/ID
DMA
Area
(square
feet)
Post-Project
Surface Type
Effective
Impervio
us
Fraction,
If
DMA
Run
off
Fact
or
DMA
Areas x
Runoff
Factor Enter BMP Name / Identifier Here

[A] [B] [C] [A] x
[C]
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 16 -

M2A 41,933 Concrete or
As
phalt/ Roofs

1.00 0.89 37,404
Design
Storm
Depth
(in)
Design
Capture
Volume, VBMP
(cubic feet)
Proposed
Volume
on Plans
(cubic
feet)
M2A 16,307 Ornamental
Landscape

0.10 0.11 1801
64,264 39205 0.54 1,764 1,960

DMA
Type/ID
DMA
Area
(square
feet)
Post-Project
Surface Type
Effective
Impervio
us
Fraction,
If
DMA
Run
off
Fact
or
DMA
Areas x
Runoff
Factor Enter BMP Name / Identifier Here
[A] [B] [C] [A] x
[C]
M3A 42,021 Concrete or
As
phalt/ Roofs

1.00 0.89 37,483
Design
Storm
Depth
(in)
Design
Capture
Volume, VBMP
(cubic feet)
Proposed
Volume
on Plans
(cubic
feet)
M3A 16,342 Ornamental
Landscape

0.10 0.11 1805
56,049 39,288 0.54 1,768 1,847
[B], [C] is obtained as described in Section 2.3.1 of the WQMP Guidance Document [E] is obtained from Exhibit A in the WQMP Guidance Document [G] is obtained from a design procedure sheet, such as in LID BMP Design Handbook and placed in Appendix 6.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 17 -

Section E: Alte rnative Compliance (LID Waiver Program) LID BMPs are expected to be feasible on virtually all projects. Where LID BMPs have been demonstrated to
be infeasible as documented in Section D, other Treatment Control BMPs must be used (subject to LID waiver approval by the Copermittee). Check one of the following Boxes:
☒ LID Principles and LID BMPs have been incorporated into the site design to fully address all Drainage Management Areas. No alternative compliance measures are required for this project and thus this Section is not required to be completed.
- Or -
☐ The following Drainage Management Areas are unable to be addressed using LID BMPs. A site- specific analysis demonstrating technical infeasibility of LID BMPs has been approved by the Co- Permittee and included in Appendix 5. Additionally, no downstream regional and/or sub-regional LID BMPs exist or are available for use by the project. The following alternative compliance measures on the following pages are being implemented to ensure that any pollutant loads expected to be discharged by not incorporating LID BMPs, are fully mitigated.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 18 -

Section F: Hydromodification
F
.1 Hydrologic Conditions of Concern (HCOC) Analysis
On
ce you have determined that the LID design is adequate to address water quality requirements, you will need to assess if the proposed LID Design may still create a HCOC. Review Chapters 2 and 3 (including Figure 3-7) of the WQMP Guidance Document to determine if your project must mitigate for Hydromodification impacts. If your project meets one of the following criteria which will be indicated by the check boxes below, you do not need to address Hydromodification at this time. However, if the project does not qualify for Exemptions 1, 2 or 3, then additional measures must be added to the design to comply with HCOC criteria. This is discussed in further detail below in Section F.2.

HC
OC EXEMPTION 1: The Priority Development Project disturbs less than one acre. The Copermittee has the discretion to require a Project-Specific WQMP to address HCOCs on projects less than one acre on a case by case basis. The disturbed area calculation should include all disturbances associated with larger common plans of development.

Does the project qualify for this HCOC Exemption?
Y N
If Yes, HCOC criteria do not apply.

HCOC EXEMPTION 2 : The volume and time of concentration 1 of storm water runoff for the post- de
velopment condition is not significantly different from the pre-development condition for a 2-year return frequency storm (a difference of 5% or less is considered insignificant) using one of the following methods to calculate:
• Riverside County Hydrology Manual
• Technical Release 55 (TR-55): Urban Hydrology for Small Watersheds (NRCS 1986), or derivatives thereof, such as the Santa Barbara Urban Hydrograph Method • Other methods acceptable to the Co-Permittee

Does the project qualify for this HCOC Exemption?
Y N
If Yes, report results in Table F.1 below and provide your substantiated hydrologic analysis in Appendix 7.

Table F.1 Hydrologic Conditions of Concern Summary
2 year – 24 hour
Pre-condition Post-condition % Difference
Time of
Concentration

Volume (Cubic Feet)
1 Time of concentration is defined as the time after the beginning of the rainfall when all portions of the drainage basin are contributing to flow at the outlet.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 19 -

HCOC EXEMPTION 3: All downstream conveyance channels to an adequate sump (for example, Prado Dam, Lake Elsinore, Canyon Lake, Santa Ana River, or other lake, reservoir or naturally erosion resistant feature) that will receive runoff from the project are engineered and regularly maintained to ensure design flow capacity; no sensitive stream habitat areas will be adversely affected; or are not identified on the Co-Permittees Hydromodification Susceptibility Maps.

Does the project qualify for this HCOC Exemption?
Y N

F.
2 HCOC Mitigation
If none of the above HCOC Exemption Criteria are applicable, HCOC criteria is considered mitigated if they meet one of the following conditions:
a. Additional LID BMPS are implemented o nsite or offsite to mitigate potential erosion or habitat impacts as a result of HCOCs. This can be conducted by an evaluation of site-specific conditions utilizing accepted professional methodologies published by entities such as the California Stormwater Quality Association (CASQA), the Southern California Coastal Water Research Project (SCCRWP), or other Co-Permittee approved methodologies for site-specific HCOC analysis.

b. The project is developed consistent with an approved Watershed Action Plan that addresses HCOC in Receiving Waters.

c. Mimicking the pre-development hydrograph with the post-development hydrograph, for a 2-year return frequency storm. Generally, the hydrologic conditions of concern are not significant, if the post-development hydrograph is no more than 10% greater than pre-development hydrograph.

In cases where excess volume cannot be infiltrated or captured and reused, discharge from the site must be limited to a flow rate no greater than 110% of the pre-development 2-year peak flow.

Section G: Source Control BMPs
S
ource control BMPs include permanent, structural features that may be required in your project plans — su
ch as roofs over and berms around trash and recycling areas — and Operational BMPs, such as regular sweeping and “housekeeping”, that must be implemented by the site’s occupant or user. The MEP standard typically requires both types of BMPs. In general, Operational BMPs cannot be substituted for a feasible and effective permanent BMP. Using the Pollutant Sources/Source Control Checklist in Appendix 8, review the following procedure to specify Source Control BMPs for your site:

1. Identify Pollutant Sources: Review Column 1 in the Pollutant Sources/Source Control Checklist. Check off the potential sources of Pollutants that apply to your site.

2. Note Locations on Project-Specific WQMP Exhibit : Note the corresponding requirements listed in Column 2 of the Pollutant Sources/Source Control Checklist. Show the location of each Pollutant source and each permanent Source Control BMP in your Project-Specific WQMP Exhibit located in Appendix 1.

3. Prepare a Table and Narrative : Check off the corresponding requirements listed in Column 3 in the Pollutant Sources/Source Control Checklist. In the left column of Table G.1 below, list each potential source of runoff Pollutants on your site (from those that you checked in the Pollutant Sources/Source PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 20 -

Control Checklist). In the middle column, list the corresponding permanent, Structural Source Control BMPs (from Columns 2 and 3 of the Pollutant Sources/Source Control Checklist) used to prevent Pollutants from entering runoff. Add additional narrative in this column that explains any special features, materials or methods of construction that will be used to implement these permanent, Structural Source Control BMPs.

4. Identify Operational Source Control BMPs: To complete your table, refer once again to the Pollutant Sources/Source Control Checklist. List in the right column of your table the Operational BMPs that should be implemented as long as the anticipated activities continue at the site. Copermittee stormwater ordinances require that applicable Source Control BMPs be implemented; the same BMPs may also be required as a condition of a use permit or other revocable Discretionary Approval for use of the site.

Table G.1 Permanent and Operational Source Control Measures Potential Sources of Runoff
pollutants
Permanent Structural Source
Control BMPs
Operational Source Control BMPs
A. On-site storm drain inlets -Mark all inlets with the words “O
nly Rain Down the Storm
Drain” or similar. Catch Basin
Markers may be available from
the Riverside County Flood
Control and Water
Conservation District, call
951.955.1200 to verify.
- Maintain and periodically repaint or replace
inle
t markings.
- Provide stormwater pollution prevention
information to new site owners, lessees, or
operators.
- See applicable operational BMPs in Fact Sheet
SC-44, “Drainage System Maintenance,” in the
CASQA Stormwater Quality Handbooks at
www.cabmphandbooks.com
- Include the following in lease agreements:
“T
enant shall not allow anyone to discharge
anything to storm drains or to store or deposit
materials so as to create a potential discharge
to storm drains.”

D2. Landscape/
Outdoor Pesticide Use
-Final landscape plans will
acco
mplish all of the following:
-Design landscaping to
minimize
irrigation and runoff, to
promote
surface infiltration where
appropriate, and to minimize
the use of fertilizers and
pesticides that can contribute
to stormwater pollution.
-Where landscaped areas are
used to retain or detain
stormwater, specify plants that
are tolerant of saturated soil
conditions.
-Consider using pest-resistant
plants, especially adjacent to
hardscape.
-Maintain landscaping using minimum or no
pesticides.
- See applicable operational BMPs in “What you
should know for…..Landscape and Gardening”
at
https://www.rcwatershed.org/about/materials-
library/ - Provide IPM information to new
owners, lessees and operators.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 21 -

-To ensure successful
es
tablishment, select plants
appropriate to site soils, slopes,
climate, sun, wind, rain, land
use, air movement, ecological
consistency, and plant
interactions.

O. Miscellaneous Drain or
Wash Water or Other
Sources:

Rooftop Equipment
Roofing, gutters, and trim

Rooftop equipment with
po
tential to produce pollutants
shall be roofed and/or have
secondary containment.

Provide possible roof drain filters and allow
car
port runoff to filter thru landscape areas.

P. Plazas, sidewalks, and
parking lots.

N/A Sweep plazas, sidewalks, and parking lots
re
gularly to prevent accumulation of litter and
debris. Collect debris from pressure washing to
prevent entry into the storm drain system.

Collect washwater containing any cleaning
agent or degreaser and discharge to the sanitary
sewer not to a storm drain.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 22 -

Section H: Construction Plan Checklist
P
opulate Table H.1 below to assist the plan checker in an expeditious review of your project. The fi
rst two columns will contain information that was prepared in previous steps, while the last column will be populated with the corresponding plan sheets. This table is to be completed with the submittal of your final Project-Specific WQMP.

Table H.1 Construction Plan Cross-reference
BMP No. or
ID
BMP Identifier and
Description
Corresponding Plan Sheet(s) BMP Location (Lat/Long)
M1A Infiltration System WQMP Exhibit
M2A Infiltration System WQMP Exhibit
M3A Infiltration System WQMP Exhibit

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 23 -

Section I: Operation, Maintenance and Funding
T
he Copermittee will periodically verify that Stormwater BMPs on your site are maintained and continue to
operate as designed. To make this possible, your Copermittee will require that you include in Appendix 9 of this Project-Specific WQMP:

1. A means to finance and implement facility maintenance in perpetuity, including replacement cost.

2. Acceptance of responsibility for maintenance from the time the BMPs are constructed until responsibility for operation and maintenance is legally transferred. A warranty covering a period following construction may also be required.

3. An outline of general maintenance requirements for the Stormwater BMPs you have selected.

4. Figures delineating and designating pervious and impervious areas, location, and type of Stormwater BMP, and tables of pervious and impervious areas served by each facility. Geo- locating the BMPs using a coordinate system of latitude and longitude is recommended to help facilitate a future statewide database system.

5. A separate list and location of self-retaining areas or areas addressed by LID Principles that do not require specialized O&M or inspections but will require typical landscape maintenance as noted in Chapter 5, pages 85-86, in the WQMP Guidance. Include a brief description of typical landscape maintenance for these areas.

Your local Co-Permittee will also require that you prepare and submit a detailed Stormwater BMP Operation and Maintenance Plan that sets forth a maintenance schedule for each of the Stormwater BMPs built on your site. An agreement assigning responsibility for maintenance and providing for inspections and certification may also be required.

Details of these requirements and instructions for preparing a Stormwater BMP Operation and Maintenance Plan are in Chapter 5 of the WQMP Guidance Document.

Maintenance Mechanism: WQMP Covenant & Agreement
Will the proposed BMPs be maintained by a Home Owners’ Association (HOA) or Property Owners Association (POA)?
Y N

In
clude your Operation and Maintenance Plan and Maintenance Mechanism in Appendix 9.

Additionally, include all pertinent forms of educational materials for those personnel that will be maintaining the proposed BMPs within this Project-Specific WQMP in Appendix 10.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 24 -

Appendix 1: Maps and Site Plans
Location Map, WQMP Site Plan and Receiving Waters Map

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

PROJECT SITE

PROJECT LOCATION MAP
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Temescal Creek, Reach 1
Santa Ana River, Reach 3
Anza Park Drain
Lake Evans
Arlington Channel
La Sierra Channel
Mockingbird Reservoir
Lake Matthews
Sycamore Creek
Lake Evans to Santa Ana River, Reach 3
Tequesquite Arroyo (Sycamore Creek) to Santa Ana River, Reach 3 Anza Park Drain to Santa Ana River, Reach 3
Santa Ana River, Reach 3
Mockingbird Reservoir to Temescal Creek, Reach 1 to Santa Ana River, Reach 3 - via Arlington Channel
Temescal Creek, Reach 1 to Santa Ana River, Reach 3 - via Arlington Channel
Temescal Creek, Reach 1 to Santa Ana River, Reach 3 - via La Sierra Channel to Arlington Channel
Outside City Limits
San Jacinto Watershed

RECEIVING WATERS MAP
LEGEND
© 2009. All Rights Reserved. City of Riverside, California.

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 25 -

Appendix 2: Construction Plans
Grading and Drainage Plans

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 107'-4"
58'-3"
49'-1"
281'-0"
9'-1"
9'-9"
225'-5"
6'-1"
30'-9"
58'-2"
58'-2"
358'-4"
14'-11"
258'-10"
13'-3" 5'-8" 65'-7"
193'-1"
41'-10"
6'-3" 42'-2"
71'-4"
9'-5"16'-1"
5'-11"
- 26 -

Appendix 3: Soils Information
Geotechnical Study and Other Infiltration Testing Data

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 27 -

Appendix 4: Historical Site Conditions
Phase I Environmental Site Assessment or Other Information on Past Site Use

N/A
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 28 -

Appendix 5: LID Infeasibility
LID Technical Infeasibility Analysis

N/A
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 29 -

Appendix 6: BMP Design Details
BMP Sizing, Design Details and other Supporting Documentation

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Date
D85= 0.54 inches
DMA
Type/ID
DMA Area
(square feet)
Post-Project Surface
Type
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Storm
Depth (in)
Design Capture
Volume, VBMP
(cubic feet)
Proposed
Volume on
Plans (cubic
feet)
M1A 31,955 Concrete or Asphalt 1 0.89 28503.9
M1A 12,427 Ornamental
Landscaping 0.1 0.11 1372.7
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 44382 29876.6 0.54 1344.4 1583
Notes:

Total
85th Percentile, 24-hour Rainfall Depth,
from the Isohyetal Map in Handbook Appendix E
Insert additional rows if needed to accommodate all DMAs draining to the BMP Santa Ana Watershed - BMP Design Volume, VBMP
(Rev. 10-2011)
Legend:

Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook ) Company Name Psomas 12/8/2022
Designed by NT Case No
Company Project Number/Name 4GIL010100
BMP Identification
Drainage Management Area Tabulation
Design Rainfall Depth
BMP NAME / ID M1A
Must match Name/ID used on BMP Design Calculation Sheet PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Date
D85= 0.54 inches
DMA
Type/ID
DMA Area
(square feet)
Post-Project Surface
Type
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Storm
Depth (in)
Design Capture
Volume, VBMP
(cubic feet)
Proposed
Volume on
Plans (cubic
feet)
M2A 41,933 Concrete or Asphalt 1 0.89 37404.2
M2A 16,307 Ornamental
Landscaping 0.1 0.11 1801.2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 58240 39205.4 0.54 1764.2 1960
Notes:

Santa Ana Watershed - BMP Design Volume, VBMP
(Rev. 10-2011)
Legend:

Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook ) Company Name Psomas 12/8/2022
Designed by NT Case No
Company Project Number/Name 4GIL010100
BMP Identification
BMP NAME / ID M2A
Must match Name/ID used on BMP Design Calculation Sheet Design Rainfall Depth
85th Percentile, 24-hour Rainfall Depth,
from the Isohyetal Map in Handbook Appendix E
Total
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Date
D85= 0.54 inches
DMA
Type/ID
DMA Area
(square feet)
Post-Project Surface
Type
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Storm
Depth (in)
Design Capture
Volume, VBMP
(cubic feet)
Proposed
Volume on
Plans (cubic
feet)
M3A 42,021 Concrete or Asphalt 1 0.89 37482.7
M3A 16,342 Ornamental
Landscaping 0.1 0.11 1805.1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 58363 39287.8 0.54 1768 1847
Notes:

Santa Ana Watershed - BMP Design Volume, VBMP
(Rev. 10-2011)
Legend:

15'

30 30
20'
10 10'

10'
20'
50'
10'

10'

6 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 30 -

Appendix 7: Hydromodification
Supporting Detail Relating to Hydrologic Conditions of Concern

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

PRADO DAM

MYSTIC LAKE

PRADO DAM

BEAUMONT

WILDOMAR

MURRIETA
CANYON
LAKE
CORONA
NORCO

CALIMESA

LAKE ELSINORE

BANNING

RIVERSIDE
PERRIS

JURUPA VALLEY
HEMET

EASTVALE

MENIFEE

SAN JACINTO
MORENO
VALLEY

DIAMOND VALLEY
LAKE
LAKE

SKINNER
LAKE

MATHEWS
CANYON
LAKE
LAKE

ELSINORE
LAKE
PERRIS
ZONE 1
ZONE 5
ZONE 3
ZONE 7
ZONE 4
ZONE 2
°
01234
Miles
HCOC Applicability MapHCOC Applicability Map
Map Document: (M:\Mdata\10108202\RCFCWCD_Hydromodification_Large_5500.mxd.mxd - IRV) - 1/9/2012 Legend
Stream Type
Not Susceptible Stream Channels
Potentially Susceptible Stream Channels
Large River (Not Susceptible)
Santa Ana River
Adequate Sump
Watershed Areas
Not Applicable Area
Applicable Area
Applicable Area Watershed Boundaries
Flood Control and Water
Conservation District Boundary
Study Area
County Boundary
Hydromodification Susceptibility Documentation Report and Mapping Riverside County Flood Control and Water Conservation District Map 2
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Project
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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices &,7<2)5,9(56,'(
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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 31 -

Appendix 8: Source Control
Pollutant Sources/Source Control Checklist

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ A. On-site storm drain
inlets
❑ Locations of inlets. ❑ Mark all inlets with the words “Only Rain Down the Storm
Drain” or similar. Catch Basin
Markers may be available from the
Riverside County Flood Control
and Water Conservation District,
call 951.955.1200 to verify.
❑ Maintain and periodically repaint or
replace inlet markings.
❑ Provide stormwater pollution
prevention information to new site
owners, lessees, or operators.
❑ See applicable operational BMPs in
Fact Sheet SC-44, “Drainage System
Maintenance,” in the CASQA
Stormwater Quality Handbooks at
www.cabmphandbooks.com
❑ Include the following in lease
agreements: “Tenant shall not allow
anyone to discharge anything to storm
drains or to store or deposit materials
so as to create a potential discharge to
storm drains.”
❑ B. Interior floor drains
and elevator shaft sump
pumps
❑ State that interior floor drains and
elevator shaft sump pumps will be
plumbed to sanitary sewer.
❑ Inspect and maintain drains to prevent
blockages and overflow.
❑ C. Interior parking
garages
❑ State that parking garage floor
drains will be plumbed to the
sanitary sewer.
❑ Inspect and maintain drains to prevent
blockages and overflow.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ D1. Need for future
indoor & structural pest
control
❑ Note building design features that
discourage entry of pests.
❑ Provide Integrated Pest Management
information to owners, lessees, and
operators.
❑ D2. Landscape/
Outdoor Pesticide Use
❑ Show locations of native trees or
areas of shrubs and ground cover to
be undisturbed and retained.
❑ Show self-retaining landscape
areas, if any.
❑ Show stormwater treatment and
hydrograph modification
management BMPs. (See
instructions in Chapter 3, Step 5
and guidance in Chapter 5.)
❑ State that final landscape plans
will accomplish all of the
following.
❑ Preserve existing native trees,
shrubs, and ground cover to the
maximum extent possible.
❑ Design landscaping to minimize
irrigation and runoff, to promote
surface infiltration where
appropriate, and to minimize the
use of fertilizers and pesticides that
can contribute to stormwater
pollution.
❑ Where landscaped areas are used to
retain or detain stormwater, specify
plants that are tolerant of saturated
soil conditions.
❑ Consider using pest-resistant
plants, especially adjacent to
hardscape.
❑ To insure successful establishment,
select plants appropriate to site
soils, slopes, climate, sun, wind,
rain, land use, air movement,
ecological consistency, and plant
interactions.
❑ Maintain landscaping using minimum
or no pesticides.
❑ See applicable operational BMPs in
“What you should know
for…..Landscape and Gardening” at
http://rcflood.org/stormwater/Error!
Hyperlink reference not valid.

Provide IPM information to new
❑ owners, lessees and operators.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ E. Pools, spas, ponds,
decorative fountains,
and other water
features.
❑ Show location of water feature and
a sanitary sewer cleanout in an
accessible area within 10 feet.
(Exception: Public pools must be
plumbed according to County
Department of Environmental
Health Guidelines.)
If the Co-Permittee requires pools
to be plumbed to the sanitary
sewer, place a note on the plans
and state in the narrative that this
connection will be made according
to local requirements.
❑ See applicable operational BMPs in
“Guidelines for Maintaining Your
Swimming Pool, Jacuzzi and Garden
Fountain” at
http://rcflood.org/stormwater/
❑ F. Food service ❑ For restaurants, grocery stores, and other food service operations, show
location (indoors or in a covered
area outdoors) of a floor sink or
other area for cleaning floor mats,
containers, and equipment.
❑ On the drawing, show a note that
this drain will be connected to a
grease interceptor before
discharging to the sanitary sewer.
❑ Describe the location and features
of the designated cleaning area.
❑ Describe the items to be cleaned in
this facility and how it has been
sized to insure that the largest
items can be accommodated.
❑ See the brochure, “The Food Service
Industry Best Management Practices for:

Restaurants, Grocery Stores,
Delicatessens and Bakeries” at
http://rcflood.org/stormwater/
Provide this brochure to new site
owners, lessees, and operators.
❑ G. Refuse areas ❑ Show where site refuse and
recycled materials will be handled
and stored for pickup. See local
municipal requirements for sizes
and other details of refuse areas.
❑ If dumpsters or other receptacles
are outdoors, show how the
designated area will be covered,
graded, and paved to prevent run-
on and show locations of berms to
prevent runoff from the area.
❑ Any drains from dumpsters,
compactors, and tallow bin areas
shall be connected to a grease
removal device before discharge to
sanitary sewer.
❑ State how site refuse will be
handled and provide supporting
detail to what is shown on plans.
❑ State that signs will be posted on or
near dumpsters with the words “Do
not dump hazardous materials
here” or similar.
❑ State how the following will be
implemented:

Provide adequate number of
receptacles. Inspect receptacles
regularly; repair or replace leaky
receptacles. Keep receptacles covered.

Prohibit/prevent dumping of liquid or
hazardous wastes. Post “no hazardous
materials” signs. Inspect and pick up
litter daily and clean up spills
immediately. Keep spill control
materials available on-site. See Fact
Sheet SC-34, “Waste Handling and
Disposal” in the CASQA Stormwater
Quality Handbooks at
www.cabmphandbooks.com
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

No processes to drain to exterior or
to storm drain system.”
❑ See Fact Sheet SC-10, “Non-
Stormwater Discharges” in the
CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
See the brochure “Industrial &
Commercial Facilities Best Management
Practices for: Industrial, Commercial
Facilities” at
http://rcflood.org/stormwater/
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD

INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE
1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ I. Outdoor storage of
equipment or materials.
(See rows J and K for
source control
measures for vehicle
cleaning, repair, and
maintenance.)
❑ Show any outdoor storage areas,
including how materials will be
covered. Show how areas will be
graded and bermed to prevent run-
on or run-off from area.
❑ Storage of non-hazardous liquids
shall be covered by a roof and/or
drain to the sanitary sewer system,
and be contained by berms, dikes,
liners, or vaults.
❑ Storage of hazardous materials and
wastes must be in compliance with
the local hazardous materials
ordinance and a Hazardous
Materials Management Plan for the
site.

Include a detailed description of
materials to be stored, storage
areas, and structural features to
prevent pollutants from entering
storm drains.

Where appropriate, reference
documentation of compliance with
the requirements of Hazardous
Materials Programs for:
▪ Hazardous Waste Generation
▪ Hazardous Materials Release
Response and Inventory
▪ California Accidental Release
(CalARP)
▪ Aboveground Storage Tank
❑ See the Fact Sheets SC-31, “Outdoor
Liquid Container Storage” and SC-33,
“Outdoor Storage of Raw Materials ”
in the CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
▪ Uniform Fire Code Article 80
Section 103(b) & (c) 1991
▪ Underground Storage Tank
www.cchealth.org/groups/hazmat
/
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ J. Vehicle and
Equipment Cleaning
❑ Show on drawings as appropriate:
(1) Commercial/industrial facilities
having vehicle/equipment cleaning
needs shall either provide a
covered, bermed area for washing
activities or discourage
vehicle/equipment washing by
removing hose bibs and installing
signs prohibiting such uses.
(2) Multi-dwelling complexes shall
have a paved, bermed, and covered
car wash area (unless car washing
is prohibited on-site and hoses are
provided with an automatic shut-
off to discourage such use).
(3) Washing areas for cars, vehicles,
and equipment shall be paved,
designed to prevent run-on to or
runoff from the area, and plumbed
to drain to the sanitary sewer.
(4) Commercial car wash facilities
shall be designed such that no
runoff from the facility is
discharged to the storm drain
system. Wastewater from the
facility shall discharge to the
sanitary sewer, or a wastewater
reclamation system shall be
installed.
❑ If a car wash area is not provided,
describe any measures taken to
discourage on-site car washing and
explain how these will be enforced.

Describe operational measures to
implement the following (if
applicable):
❑ Washwater from vehicle and
equipment washing operations shall
not be discharged to the storm drain
system. Refer to “Outdoor Cleaning
Activities and Professional Mobile Service
Providers” for many of the Potential
Sources of Runoff Pollutants categories
below. Brochure can be found at
http://rcflood.org/stormwater/
❑ Car dealerships and similar may
rinse cars with water only.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ K. Vehicle/Equipment
Repair and
Maintenance
❑ Accommodate all vehicle
equipment repair and maintenance
indoors. Or designate an outdoor
work area and design the area to
prevent run-on and runoff of
stormwater.
❑ Show secondary containment for
exterior work areas where motor
oil, brake fluid, gasoline, diesel
fuel, radiator fluid, acid-containing
batteries or other hazardous
materials or hazardous wastes are
used or stored. Drains shall not be
installed within the secondary
containment areas.
❑ Add a note on the plans that states
either (1) there are no floor drains,
or (2) floor drains are connected to
wastewater pretreatment systems
prior to discharge to the sanitary
sewer and an industrial waste
discharge permit will be obtained.
❑ State that no vehicle repair or
maintenance will be done outdoors,
or else describe the required
features of the outdoor work area.
❑ State that there are no floor drains
or if there are floor drains, note the
agency from which an industrial
waste discharge permit will be
obtained and that the design meets
that agency’s requirements.
❑ State that there are no tanks,
containers or sinks to be used for
parts cleaning or rinsing or, if there
are, note the agency from which an
industrial waste discharge permit
will be obtained and that the
design meets that agency’s
requirements.

In the Stormwater Control Plan, note
that all of the following restrictions
apply to use the site:
❑ No person shall dispose of, nor permit
the disposal, directly or indirectly of
vehicle fluids, hazardous materials, or
rinsewater from parts cleaning into
storm drains.
❑ No vehicle fluid removal shall be
performed outside a building, nor on
asphalt or ground surfaces, whether
inside or outside a building, except in
such a manner as to ensure that any
spilled fluid will be in an area of
secondary containment. Leaking
vehicle fluids shall be contained or
drained from the vehicle immediately.

No person shall leave unattended drip
❑ parts or other open containers
containing vehicle fluid, unless such
containers are in use or in an area of
secondary containment.

Refer to “Automotive Maintenance & Car
Care Best Management Practices for Auto
Body Shops, Auto Repair Shops, Car
Dealerships, Gas Stations and Fleet
Service Operations”. Brochure can be
found at http://rcflood.org/stormwater/
Refer to Outdoor Cleaning Activities and
Professional Mobile Service Providers for
many of the Potential Sources of
Runoff Pollutants categories below.

Brochure can be found at
http://rcflood.org/stormwater/
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

6 The fueling area shall be defined as the area extending a minimum of 6.5 feet from the corner of each fuel dispenser or the length at which the hose and nozzle assembly may be operated plus a minimum of one foot, whichever is greater.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

… THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE 1 Potential Sources of
Runoff Pollutants
2 Permanent Controls—Show on
WQMP Drawings
3 Permanent Controls—List in WQMP
Table and Narrative
4 Operational BMPs—Include in WQMP
Table and Narrative
❑ M. Loading Docks ❑ Show a preliminary design for the
loading dock area, including
roofing and drainage. Loading
docks shall be covered and/or
graded to minimize run-on to and
runoff from the loading area. Roof
downspouts shall be positioned to
direct stormwater away from the
loading area. Water from loading
dock areas shall be drained to the
sanitary sewer, or diverted and
collected for ultimate discharge to
the sanitary sewer.
❑ Loading dock areas draining
directly to the sanitary sewer shall
be equipped with a spill control
valve or equivalent device, which
shall be kept closed during periods
of operation.
❑ Provide a roof overhang over the
loading area or install door skirts
(cowling) at each bay that enclose
the end of the trailer.
❑ Move loaded and unloaded items
indoors as soon as possible.
❑ See Fact Sheet SC-30, “Outdoor
Loading and Unloading,” in the
CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

Condensate drain lines may
discharge to landscaped areas if the
flow is small enough that runoff
will not occur. Condensate drain
❑ lines may not discharge to the
storm drain system.

Rooftop equipment with potential
to produce pollutants shall be
❑ roofed and/or have secondary
containment.

Any drainage sumps on-site shall
❑ feature a sediment sump to reduce
the quantity of sediment in
pumped water.
❑ Avoid roofing, gutters, and trim
made of copper or other
unprotected metals that may leach
into runoff.

Include controls for other sources
as specified by local reviewer.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

S T O R M W A T E R P O L L U T A N T S O U R C E S / S O U R C E C O N T R O L C H E C K L I S T

IF THESE SOURCES WILL BE
ON THE PROJECT SITE …

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 32 -

Appendix 9: O&M
Operation and Maintenance Plan and Documentation of Finance, Maintenance and Recording Mechanisms

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices - 6 -

Appendix 10: Educational Materials
BMP Fact Sheets, Maintenance Guidelines and Other End-User BMP Information PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices After the Storm
EPA 833-B-03-002
January 2003
For more information contact:
or visit
www.epa.gov/npdes/stormwater
www.epa.gov/nps
A Citizen’s Guide to
Understanding Stormwater

WHEN IT RAINS

IT DRAINS

WHEN IT RAINS

IT DRAINS
Internet Address (URL) HTTP://www.epa.gov
Recycled/Recyclable Printed With Vegetable
Oil Based Inks on 100% Postconsumer,
Process Chlorine Free Recycled Paper
●
●
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices What is stormwater runoff?
Why is stormwater runoff
a problem?
The effects of pollution
Stormwater runoff occurs when precipitation
from rain or snowmelt flows over the ground.

Impervious surfaces like driveways, sidewalks,
and streets prevent stormwater from
naturally soaking into the ground.

Stormwater can pick up debris, chemicals, dirt, and other pollutants and flow into a storm sewer system or directly to a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer system is discharged untreated into the waterbodies we use for swimming, fishing, and providing drinking water.

Polluted stormwater runoff can have
many adverse effects on plants, fish,
animals, and people.

Sediment can cloud the water
and make it difficult or
impossible for aquatic plants to
grow . Sediment also can
.
/c183
destroy aquatic habitats
Excess nutrients can cause
algae blooms. When algae die,
they sink to the bottom and decompose
in a process that removes oxygen from
the water. Fish and other aquatic
organisms can’t exist in water with low
dissolved oxygen levels.

Bacteria and other pathogens can wash
into swimming areas and create health
hazards, often making beach closures
necessary .

Debris—plastic bags, six-pack rings, bottles, and
cigarette butts—washed into waterbodies can choke, suffocate, or disable aquatic life like ducks, fish, turtles, and birds.

Household hazardous wastes like insecticides, pesticides, paint, solvents, used motor oil, and other auto fluids can poison aquatic life.

Land animals and people can become sick or die from eating diseased fish and shellfish or ingesting polluted water.

Polluted stormwater often
affects drinking water
sources. This, in turn, can
affect human health and
increase drinking water
treatment costs.
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PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Auto care
Washing your car and
degreasing auto parts at home
can send detergents and other
contaminants through the
storm sewer system. Dumping
automotive fluids into storm
drains has the same result as
dumping the materials directly
into a waterbody .

Pet waste
Pet waste can be
a major source of
bacteria and
excess nutrients
in local waters.
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When walking
your pet,
remember to pick up the
waste and dispose of it
properly . Flushing pet
waste is the best disposal
method. Leaving pet waste
on the ground increases
public health risks by
allowing harmful bacteria
and nutrients to wash into
the storm drain and
eventually into local
waterbodies.

Septic
systems
Leaking and
poorly
maintained
septic
systems release nutrients and
pathogens (bacteria and
viruses) that can be picked up
by stormwater and discharged
into nearby waterbodies.

Pathogens can cause public
health problems and
environmental concerns.

Lawn care
Excess fertilizers
and pesticides
applied to lawns
and gardens wash
off and pollute
streams. In
addition, yard
clippings and
leaves can wash
into storm drains and contribute
nutrients and organic matter to streams.

Education is essential to changing people's behavior.

Signs and markers near storm drains warn residents
that pollutants entering the drains will be carried
untreated into a local waterbody.

Recycle or properly dispose of household products that
contain chemicals, such as insecticides, pesticides, paint, solvents, and used motor oil and other auto fluids.

Don’t pour them onto the ground or into storm drains.
/c183
/c183
Use a commercial car wash that treats or
recycles its wastewater, or wash your car on
your yard so the water infiltrates into the
ground.

Repair leaks and dispose of used auto fluids
and batteries at designated drop-off or
recycling locations.
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/c183
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Don’t overwater your lawn. Consider
using a soaker hose instead of a
sprinkler.

Use pesticides and fertilizers
sparingly . When use is necessary , use
these chemicals in the recommended
amounts. Use organic mulch or safer
pest control methods whenever
possible.

Compost or mulch yard waste. Don’t
leave it in the street or sweep it into
storm drains or streams.

Cover piles of dirt or mulch being
used in landscaping projects.
/c183
/c183
Inspect your system every
3 years and pump your
tank as necessary (every 3
to 5 years).

Don't dispose of
household hazardous
waste in sinks or toilets.

Permeable Pavement
Rain Barrels
Rain Gardens and
Grassy Swales
Vegetated Filter Strips
—Traditional concrete and
asphalt don’t allow water to soak into the ground.

Instead these surfaces rely on storm drains to
divert unwanted water. Permeable pavement
systems allow rain and snowmelt to soak through,
decreasing stormwater runoff.
—You can
collect rainwater from
rooftops in mosquito-
proof containers. The
water can be used later on
lawn or garden areas.
—Specially
designed areas planted
with native plants can provide natural places for
rainwater to collect
and soak into the
ground. Rain from
rooftop areas or paved
areas can be diverted
into these areas rather
than into storm drains.
—Filter strips are areas of
native grass or plants created along roadways or
streams. They trap the pollutants stormwater
picks up as it flows across driveways and streets.

Residential landscaping
Stormwater Pollution Solutions
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Dirt, oil, and debris that collect in
parking lots and paved areas can be
washed into the storm sewer system
and eventually enter local
waterbodies.
/c183
/c183
/c183
Sweep up litter and debris from
sidewalks, driveways and parking lots,
especially around storm drains.

Cover grease storage and dumpsters
and keep them clean to avoid leaks.

Report any chemical spill to the local
hazardous waste cleanup team.

They’ll know the best way to keep
spills from harming the environment.

Erosion controls that aren’t maintained can cause
excessive amounts of sediment and debris to be
carried into the stormwater system. Construction
vehicles can leak fuel, oil, and other harmful fluids
that can be picked up by stormwater and
deposited into local waterbodies.
/c183
/c183
/c183
Divert stormwater away from disturbed or
exposed areas of the construction site.

Install silt fences, vehicle mud removal areas,
vegetative cover, and other sediment and
erosion controls and properly maintain them,
especially after rainstorms.

Prevent soil erosion by minimizing disturbed
areas during construction projects, and seed
and mulch bare areas as soon as possible.

Uncovered fueling stations allow spills to be
washed into storm drains. Cars waiting to be
repaired can leak fuel, oil, and other harmful
fluids that can be picked up by stormwater.
/c183
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Clean up spills immediately and properly
dispose of cleanup materials.

Provide cover over fueling stations and
design or retrofit facilities for spill
containment.

Properly maintain fleet vehicles to prevent
oil, gas, and other discharges from being
washed into local waterbodies.

Install and maintain oil/water separators.

Lack of vegetation on streambanks can lead to erosion. Overgrazed pastures can also contribute excessive amounts of sediment to local waterbodies. Excess fertilizers and pesticides can poison aquatic animals and lead to destructive algae blooms. Livestock in streams can contaminate waterways with bacteria, making them unsafe for human contact. /c183
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Keep livestock away from streambanks and provide
them a water source away from waterbodies.

Store and apply manure away from waterbodies and in
accordance with a nutrient management plan.

Vegetate riparian areas along waterways.

Rotate animal grazing to prevent soil erosion in fields.

Apply fertilizers and pesticides according to label
instructions to save money and minimize pollution.

Improperly managed logging operations can result in erosion and sedimentation.
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Conduct preharvest planning to prevent erosion and lower costs.

Use logging methods and equipment that minimize soil disturbance.

Plan and design skid trails, yard areas, and truck access roads to minimize stream crossings and avoid disturbing the forest floor.

Construct stream crossings so that they minimize erosion and physical changes to streams.

Expedite revegetation of cleared areas.

Commercial
Construction
Agriculture
Automotive
Facilities
Forestry
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices For more information about how
you can protect our watershed,
please visit:
www.rcwatershed.org
Food Service Industry
Best Practices
We our Watershed!
A clean and healthy watershed is
important to all of us.

Trash, debris, chemicals and other
contaminants from business activities
often make their way into the Riverside
County storm drain system. This pollutes
our drinking water and contaminates
waterways, making them unsafe for
people and wildlife.

Did you know?
There is a difference between storm
drains
and sewers.

Storm drains capture rainwater and flow
directly to our rivers, lakes and streams –
untreated.

Sewers capture and collect water from
sinks, toilets and floor drains, and thenit
is processed and treated before it is
released into the environment.

Watershed
Protection
Restaurants
Mobile Food Trucks
Grocery Stores
Bakeries
Delicatessens
Questions?
If you have questions about Best
Management Practices, or if you have
questions about illicit dumpin g and
stormwater pollution visit the Pollution
Prevention website : rcwatershed.org.

For more information on requirements
for all retail food facilities go to Riverside
County Environmental Health’s website:
rivcoeh.org
Riverside County Watershed Protection Program
is managed by Riverside County Flood Control &
Water Conservation District in partnershipwith
27 Cities, the County of Riverside and the
Coachella Valley Water District.

OUR MISSION
“To protect, preserve and enhance the quality
of Riverside County watersheds by fostering a
community-wide commitment to clean water.”
g
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Best Kitchen Practices
Dumpster Areas
Keep dumpster lids closed and the areas
around them clean.
Do not fill with liquid waste or hose them
out.
Call your trash hauler to replace any
dumpsters that are damaged or leaking.

Mobile Food Trucks
The potential for generating
stormwater pollution as part of a
mobile food business requires
special attention. Cleaning activities
are required to be conducted at an
approved fixed location with a
connection to a sanitary sewer. For
more information contact Riverside
County Environmental Health at
(888) 722-4234.
Do not discharge wash water into
storm drains.
Clean on a properly equipped wash
pad and drain wastewater to a
sanitary sewer system.

Cleaning & Maintenance
Clean equipment, floor mats, filters and
garbage cans in a mop sink, wash rack or
floor drain connected to a sanitary sewer.
Sweep outside areas and put the debris in
trash containers DO NOT hose down or
sweep into the parking lot or street.
Outside eating areas and sidewalks may
not be hosed down or pressure washed
UNLESS
the following standards are met:
9 Use dry cleanup methods prior to any
pressure washing – absorbing with
kitty litter, sweeping, vacuuming,
scraping off dried debris.
9 Wash waters must be captured for
proper disposal: collected waters
should be discharged to a sanitary
drain.
9 DO NOT use any chemicals or
detergents.
9 DO NOT wash or pour water in a
parking lot, alley, sidewalk or street.

Food Waste Disposal
Scrape food waste off of plates,
pots and food prep areas and
dispose of in the trash.
Food scraps often contain grease,
which can clog sewer pipes and
result in costly sewer backups and
overflows.
Never put food waste down the
drain.

Recycle Oil & Grease
Never put oil or grease down the drain.

Contain grease and oil by using covered
grease storage containers or installing a
grease interceptor.
Never overfill your grease storage
container or transport it without a cover.
Grease control devices must be emptied
and cleaned by permitted companies and
according to manufacturer’sspecifications.
Keep maintenance records on site.
For a list of oil/grease recycling
companies, contact CalRecycle
www.calrecycle.ca.gov
or contact your
local sanitation district.

Managing Spills
Clean food spills in loading and trash
areas by using absorbent materials and
sweeping then mopping.
Discharge mop water into the sewer
through a grease interceptor.
Have spill containment and cleanup kits
available.
To report serious toxic spills, call 911.

Handling Toxic Chemicals
Dispose of all unwanted toxics materials
like cleaners, solvents and detergents
through a hazardous waste hauler. These
items are not trash!
Use non-toxic cleaning products whenever
possible.
For information on hazardous waste
transporters, call (888) 722-4234.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Environmental Initial Study/Mitigated Negative Declaration # PR-2021-001197

APPENDIX G

Noise and Vibration Impact Analysis, Madison Flats Project (Noise and Vibration Impact Analysis)
(LSA, May 2023)

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices May 2023

NOISE AND VIBRATION IMPACT ANALYSIS

MADISON FLATS PROJECT

RIVERSIDE , CALIFORNIA

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

May 2023

NOISE AND VIBRATION IMPACT ANALYSIS

MADISON FLATS PROJECT

RIVERSIDE , CALIFORNIA

Prepared for:

Blaise Rastello
Gilbane Development Company
1100 North Glebe Road, Suite 1000
Arlington, Virginia 22201

Prepared by:

LSA
3210 El Camino Real, Suite 100
Irvine, California 92602
(949) 553-0666

Project No. GBC2201
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
M AY 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» i

TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................................... i LIST OF ABBREVIATIONS AND ACRONYMS ............................................................................................ iii INTRODUCTION .......................................................................................................... 1 PROJECT LOCATION .................................................................................................... 1 PROJECT DESCRIPTION ................................................................................................ 1 CHARACTERISTICS OF SOUND ..................................................................................... 1 Measurement of Sound................................................................................................................. 4 Physiological Effects of Noise ........................................................................................................ 5 FUNDAMENTALS OF VIBRATION ................................................................................. 5 REGULATORY SETTING ................................................................................................ 7 Federal Guidelines ......................................................................................................................... 7 Federal Transit Administration ........................................................................................................... 7 State Regulations........................................................................................................................... 8 Title 24 ................................................................................................................................................ 8 Local Regulations ........................................................................................................................... 9 City of Riverside .................................................................................................................................. 9 EXISTING SETTING ..................................................................................................... 11 Overview of the Existing Noise Environment .............................................................................. 11 Land Uses in the Project Vicinity ................................................................................................. 12 Ambient Noise Measurements ................................................................................................... 12 Existing Train Noise ..................................................................................................................... 12 Existing Train Vibration Measurements ...................................................................................... 12 Existing Aircraft Noise ................................................................................................................. 14 Existing Traffic Noise ................................................................................................................... 14 IMPACTS ................................................................................................................... 15 Short-Term Construction Noise Impacts ..................................................................................... 15 Short-Term Construction Vibration Impacts ............................................................................... 17 Long-Term Traffic Noise Impacts ................................................................................................ 20 Long-Term Stationary Source Noise Impacts .............................................................................. 23 HVAC Equipment .............................................................................................................................. 23 Long-Term Ground-Borne Noise and Vibration from Vehicular Traffic ...................................... 23 Land Use Compatibility Assessment ........................................................................................... 24 Exterior Vibration Assessment ......................................................................................................... 24 Exterior Noise Assessment ............................................................................................................... 24 Interior Noise Assessment ................................................................................................................ 24 REGULATORY COMPLIANCE MEASURES .................................................................... 26 REDUCTION MEASURES ............................................................................................ 26 Short-Term Construction Noise Impacts ..................................................................................... 26 Short-Term Construction Vibration Impacts ............................................................................... 26 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
M AY 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA
P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» ii Long-Term Aircraft Noise Impacts ............................................................................................... 26 Long-Term Traffic Noise Impacts ................................................................................................ 26 Long-Term Stationary Noise Impacts .......................................................................................... 26 Long-Term Vibration Impacts ...................................................................................................... 27 REFERENCES ............................................................................................................. 27

FIGURES
Figure 1: Project Location and Vicinity ................................................................................................... 2 Figure 2: Site Plan ................................................................................................................................... 3 Figure 3: Noise and Vibration Monitoring Locations ........................................................................... 13 Figure
4: Noise Barrier Locations ......................................................................................................... 25 TABLES
Table A: Definitions of Acoustical Terms ................................................................................................ 6 Table B: Common Sound Levels and Their Noise Sources...................................................................... 6 Table C: Interpretation of Vibration Criteria for Detailed Analysis ........................................................ 8 Table D: Construction Vibration Damage Criteria .................................................................................. 8 Table E: City of Riverside Noise/Land Use Noise Compatibility Criteria .............................................. 10 Table F: City of Riverside Maximum Noise Level Standards................................................................. 11 Table G: Long-Term Ambient Noise Monitoring Results ...................................................................... 14 Table H: Existing Traffic Noise Levels ................................................................................................... 15 Table I: Typical Construction Equipment Noise Levels ......................................................................... 16 Table J: Summary of Construction Phase, Equipment, and Noise Levels ............................................. 17 Table K: Vibration Source Amplitudes for Construction Equipment .................................................... 18 Table L: Potential Construction Vibration Annoyance ......................................................................... 19 Table M: Potential Construction Vibration Damage ............................................................................ 19 Table N: Existing (2022) Traffic Noise Levels Without and With Project ............................................. 21 Table O: Opening Year (2025) Traffic Noise Levels Without and With Project .................................... 21 Table P: Cumulative (2045) Traffic Noise Levels Without and With Project ........................................ 22 Table Q: HVAC Noise Levels ................................................................................................................. 23

APPENDICES
A: NOISE AND VIBRATION MONITORING SURVEY SHEETS
B: FHWA HIGHWAY TRAFFIC NOISE MODEL PRINTOUTS
C: HVA

C EQUIPMENT SPECIFICATIONS
D: HVAC NOISE CALCULATIONS
E: SAMPLE INTERIOR NOISE CALCULATIONS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
M AY 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» iii

LIST OF ABBREVIATIONS AND ACRONYMS
ADT average daily traffic
ALUC Airport Land Use Commission
APN Assessor's Parcel Number
CalEEMod California Emissions Estimator Model
BNSF Burlington Northern Santa Fe
CBC California Building Code
CCR California Code of Regulations
City City of Riverside
CNEL Community Noise Equivalent Level
cy cubic yards
dB decibels
dBA A-weighted decibels
EPA United States Environmental Protection Agency
FAR Final Acoustical Report
FHWA Federal Highway Administration
ft foot/feet
FTA Federal Transit Administration
HVAC heating, ventilation, and air conditioning
in/sec inches per second
Ldn day-night average noise level
Leq equivalent continuous sound level
Lmax maximum instantaneous noise level
Ln noise levels that cannot be exceeded for certain percentages of time PPV peak particle velocity
project Madison Flats Project
RAL Riverside Municipal Airport
RMS root-mean-square (velocity)
sf square foot/feet
SPL sound power level
SR-91 State Route 91
STC sound transmission class
VdB vibration velocity decibels

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 1

NOISE AND VIBRATION IMPACT ANALYSIS

INTRODUCTION
This noise and vibration impact analysis has been prepared to evaluate the potential noise and vibration impacts and reduction measures associated with the Madison Flats Project (project) in Riverside, Riverside County, California. This report is intended to satisfy City of Riverside (City) requirements for a project-specific noise and vibration impact analysis by examining the short-term and long-term noise and vibration impacts on sensitive uses adjacent to the project site and evaluating reduction measures required by the proposed project.

PROJECT LOCATION
The project area consists of Assessor’s Parcel Numbers (APNs) 230-253-010, 230-245-013, 230-233- 013, and 230-245-015 and is located at the southwest corner of Madison Street and Railroad Avenue in Riverside, California. The project area is approximately 3.94 acres. The project site has the Burlington Northern Santa Fe (BNSF)/Inland Empire-Orange County Railroad Line along the southeastern boundary. The project proposes to develop the entire area of the parcels. Figure 1 shows the project location and vicinity.

PROJECT DESCRIPTION
The proposed project would develop a residential complex of three buildings comprising 76 senior residences and 45 family residences, 63 parking spaces, and 43,600 square feet (sf) of open space on an existing vacant site. The site is currently zoned as R-1-7000, Single Family Residential Zone, and is proposed to change to R-3-1500, Multifamily Residential Zone. Construction of the proposed project would start in mid-January 2024 and would be complete in 2025. During construction, approximately 20 cubic yards (cy) of soil would be cut and 12,700 cy would be filled, for a net 12,680 cy of soil to be imported. Figure 2 shows the site plan.

CHARACTERISTICS OF SOUND
Sound is increasing in the environment and can affect quality of life. Noise is usually defined as unwanted sound. Noise consists of any sound that may produce physiological or psychological damage and/or interfere with communication, work, rest, recreation, and sleep.

To the human ear, sound has two significant characteristics: pitch and loudness. Pitch is generally an annoyance, while loudness can affect the ability to hear. Pitch is the number of complete vibrations (or cycles per second) of a wave, resulting in the tone’s range from high to low. Loudness is the strength of a sound and describes a noisy or quiet environment; it is measured by the amplitude of the sound wave. Loudness is determined by the intensity of the sound waves combined with the reception characteristics of the human ear. Sound intensity is the average rate of sound energy transmitted through a unit area perpendicular to the direction in which the sound waves are traveling. This characteristic of sound can be precisely measured with instruments. The analysis of a project defines the noise environment of the project area in terms of sound intensity and its effect on adjacent sensitive land uses.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: USGS The National Map
I:\GBC2201.02\GIS\Pr
o\Madison Flats\Madison Flats.aprx (11/8/2022)
FIGURE 1
Madison Flats Project

S A N B E R N A R D I N O

C O U N T Y

R I V E R S I D E

C O U N T Y
ÃÃ38
ÃÃ71
ÃÃ74
ÃÃ210
ÃÃ60
ÃÃ91
§¨¦215
§¨¦215
§¨¦10
§¨¦15
Project Vicinity
0 1000 2000
FEET
Project Location
Regional and Project Location
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices SOURCE: Studioneleven
FIGURE 2
I:\GBC2201\G\Site_Plan.ai (11/2/2022)
Site Plan
Madison Flats Project
FEET
2401200

1. STREET FACING PRIVATE PATIOS

2. OPEN STAIR VERTICAL CIRCULATION

3. RESIDENTIAL COURTYARDS FACING STREET

4. CENTRALIZED SENIOR PARKING

5. FAMILY PARKING

6. CORRIDOR SOUND BUFFER

7. INTERGENERATIONAL ZONE

KEYNOTES
2/3 STORY SENIOR RESIDENTIAL BUILDINGS
2/3 STORY FAMILY RESIDENTIAL BUILDINGS

AMENITIES AT GROUND FLOOR
10 MINUTE WALK

LANDSCAPE / COURTYARDS
LEGEND
SCALE 1” = 60’0 60 1203015
DESIGN Site Plan
1 222
4 22 33333 3 32
7 2222
5 6 6 6
September 2022 | Madison Residential City Submittal | The Gilbane Company A05 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 4 Measurement of Sound
Sound intensity is measured through the A-weighted scale to correct for the relative frequency response of the human ear. That is, an A-weighted noise level de-emphasizes low and very high frequencies of sound similar to the human ear’s de-emphasis of these frequencies. Decibels (dB), unlike the linear scale (e.g., inches or pounds), is a scale based on powers of 10.

For example, 10 dB is 10 times more intense than 0 dB, 20 dB is 100 times more intense than 0 dB, and 30 dB is 1,000 times more intense than 0 dB. Thirty decibels (30 dB) represent 1,000 times as much acoustic energy as 0 dB. The decibel scale increases as the square of the change, representing the sound pressure energy. A sound as soft as human breathing is about 10 times greater than 0 dB.

The decibel system of measuring sound gives a rough connection between the physical intensity of sound and its perceived loudness to the human ear. A 10 dB increase in sound level is perceived by the human ear as only a doubling of the loudness of the sound. Ambient sounds generally range from 30 A-weighted decibels (dBA) (very quiet) to 100 dBA (very loud).

Sound levels are generated from a source, and their decibel level decreases as the distance from that source increases. Sound dissipates exponentially with distance from the noise source. For a single point source, sound levels decrease approximately 6 dB for each doubling of distance from the source. This drop-off rate is appropriate for noise generated by stationary equipment. If noise is produced by a line source, such as highway traffic or railroad operations, the sound decreases 3 dB for each doubling of distance in a hard site environment. Line source noise in a relatively flat environment with absorptive vegetation decreases 4.5 dB for each doubling of distance.

There are many ways to rate noise for various time periods, but an appropriate rating of ambient noise affecting humans also accounts for the annoying effects of sound. The equivalent continuous sound level (L
eq) is the total sound energy of time-weighted average noise over a sample period.

However, the predominant rating scales for human communities in California are Leq and the Community Noise Equivalent Level (CNEL) or the day-night average noise level (Ldn) based on dBA.

CNEL is the time-varying noise over a 24-hour period, with a 5 dBA weighting factor applied to the hourly Leq for noises occurring from 7:00 p.m. to 10:00 p.m. (defined as relaxation hours) and a 10 dBA weighting factor applied to noise occurring from 10:00 p.m. to 7:00 a.m. (defined as sleeping hours). Ldn is similar to the CNEL scale but without the adjustment for events occurring during the relaxation hours. CNEL and Ldn are within 1 dBA of each other and are normally interchangeable. The noise adjustments are added to the noise events occurring during the more sensitive hours.

Other noise rating scales of importance, when assessing the annoyance factor, include the maximum instantaneous noise level (L
max), which is the highest exponential time-averaged sound level that occurs during a stated time period. The noise environments discussed in this analysis are specified in terms of Lmax for short-term noise impacts. Lmax reflects peak operating conditions and addresses the annoying aspects of intermittent noise. Another noise scale often used together with Lmax in noise ordinances for enforcement purposes is noise standards in terms of percentile noise levels. For example, the L10 noise level represents the noise level exceeded 10 percent of the time during a stated period. The L50 noise level represents the median noise level. Half of the time the noise level exceeds this level, and half of the time it is less than this level. The L90 noise level represents the noise level exceeded 90 percent of the time and is considered the background noise PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 5 level during a monitoring period. For a relatively constant noise source, Leq and L50 are approximately the same.

Noise impacts can be described in three categories. The first is audible impacts, which refer to increases in noise levels noticeable to humans. Audible increases in noise levels generally refer to a change of 3 dB or greater since this level has been found to be barely perceptible in exterior environments. The second category, potentially audible, refers to a change in the noise level between 1 and 3 dB. This range of noise levels has been found to be noticeable only in laboratory environments. The last category is changes in noise level of less than 1 dB, which are inaudible to the human ear. Only audible changes in existing ambient or background noise levels are considered potentially significant.

Physiological Effects of Noise
Physical damage to human hearing begins at prolonged exposure to noise levels higher than 85 dBA.

Exposure to high noise levels affects the entire system, with prolonged noise exposure in excess of 75 dBA increasing body tensions and thereby affecting blood pressure and functions of the heart and the nervous system. In comparison, extended periods of noise exposure above 90 dBA would result in permanent cell damage. When the noise level reaches 120 dBA, a tickling sensation occurs in the human ear, even with short-term exposure. This level of noise is called the threshold of feeling. As the sound reaches 140 dBA, the tickling sensation is replaced by the feeling of pain in the ear. This is called the threshold of pain. A sound level of 160 to 165 dBA will potentially result in dizziness or loss of equilibrium. The ambient or background noise problem is widespread and generally more concentrated in urban areas than in outlying, less-developed areas.

Table A lists definitions of acoustical terms, and Table B shows common sound levels and their noise sources.

FUNDAMENTALS OF VIBRATION
Vibration refers to ground-borne noise and perceptible motion. Ground-borne vibration is almost exclusively a concern inside buildings and is rarely perceived as a problem outdoors, where the motion may be discernible, but without the effects associated with the shaking of a building there is less adverse reaction. Vibration energy propagates from a source through intervening soil and rock layers to the foundations of nearby buildings. The vibration then propagates from the foundation throughout the remainder of the structure. Building vibration may be perceived by occupants as the motion of building surfaces, the rattling of items sitting on shelves or hanging on walls, or a low- frequency rumbling noise. The rumbling noise is caused by the vibration of walls, floors, and ceilings that radiate sound waves. Although the perceptibility threshold is approximately 65 vibration velocity decibels (VdB), human response to vibration is not usually substantial unless the vibration exceeds 70 VdB. A vibration level that causes annoyance is well below the damage risk threshold for typical buildings.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 6 Table A: Definitions of Acoustical Terms
Term Definition
Decibel, dB A unit of noise level that denotes the ratio between two quantities that are proportional to power; the number of decibels is 10 times the logarithm (to the base 10) of this ratio.

Frequency, Hz Of a function periodic in time, the number of times that the quantity repeats itself in 1 second (i.e., number of cycles per second).

A-Weighted Sound
Level, dBA
The sound level obtained by use of A-weighting. The A-weighting filter de-emphasizes the very-low- frequency and very-high-frequency components of the sound in a manner similar to the frequency response of the human ear and correlates well with subjective reactions to noise. (All sound levels in this report are A-weighted unless reported otherwise.)
L2, L8, L50, L90 The fast A-weighted noise levels that are equaled or exceeded by a fluctuating sound level 2 percent, 8 percent, 50 percent, and 90 percent of a stated time period.

Equivalent Continuous
Sound Level, Leq
The level of a steady sound that, in a stated time period and at a stated location, has the same A-weighted sound energy as the time-varying sound.

Community Noise
Equivalent Level, CNEL
The 24-hour A-weighted average sound level from midnight to midnight, obtained after the addition of 5 dB to sound levels occurring in the evening from 7:00 p.m. to 10:00 p.m. and after the addition of 10 dB to sound levels occurring in the night between 10:00 p.m. and 7:00 a.m.

Day/Night Average
Noise Level, Ldn
The 24-hour A-weighted average sound level from midnight to midnight, obtained after the addition of 10 dB to sound levels occurring in the night between 10:00 p.m. and 7:00 a.m.

Lmax, Lmin The maximum and minimum A-weighted sound levels measured on a sound level meter during a designated time interval using fast time averaging.

Ambient Noise Level The all-encompassing noise associated with a given environment at a specified time; usually a composite of sound from many sources from many directions, near and far; no particular sound is dominant.

Intrusive The noise that intrudes over and above the existing ambient noise at a given location. The relative intrusiveness of a sound depends on its amplitude, duration, frequency, time of occurrence, and tonal or informational content, as well as the prevailing ambient noise level.

Source: Handbook of Acoustical Measurement and Noise Control (Harris 1991).

Table B: Common Sound Levels and Their Noise Sources
Noise Source A-Weighted Sound
Level in Decibels Noise Environments Subjective Evaluations Near Jet Engine 140 Deafening 128 times as loud
Civil Defense Siren 130 Threshold of Pain 64 times as loud Hard Rock Band 120 Threshold of Feeling 32 times as loud Accelerating Motorcycle a Few Feet Away 110 Very Loud 16 times as loud Pile Driver; Noisy Urban Street/Heavy City Traffic 100 Very Loud 8 times as loud Ambulance Siren; Food Blender 95 Very Loud —
Garbage Disposal 90 Very Loud 4 times as loud
Freight Cars; Living Room Music 85 Loud —
Pneumatic Drill; Vacuum Cleaner 80 Loud 2 times as loud Busy Restaurant 75 Moderately Loud —
Near-Freeway Auto Traffic 70 Moderately Loud Reference Level Average Office 60 Quiet ½ as loud
Suburban Street 55 Quiet —
Light Traffic; Soft Radio Music in Apartment 50 Quiet ¼ as loud Large Transformer 45 Quiet —
Average Residence without Stereo Playing 40 Faint ⅛ as loud Soft Whisper 30 Faint —
Rustling Leaves 20 Very Faint —
Human Breathing 10 Very Faint Threshold of Hearing
— 0 Very Faint —
Source: Compiled by LSA (2004).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 7 Typical sources of ground-borne vibration are construction activities (e.g., blasting, pile driving, and operating heavy-duty earthmoving equipment), steel-wheeled trains, and occasional traffic on rough roads. Problems with both ground-borne vibration and noise from these sources are usually localized to areas within approximately 100 feet (ft) from the vibration source, although there are examples of ground-borne vibration causing interference out to distances greater than 200 ft (Transit Noise and Vibration Impact Assessment Manual [FTA 2018]). When roadways are smooth, vibration from traffic, even heavy trucks, is rarely perceptible. It is assumed for most projects that the roadway surface will be smooth enough that ground-borne vibration from street traffic will not exceed the impact criteria; however, both construction of the project and freight train operations could result in ground-borne vibration that may be perceptible and annoying.

Ground-borne noise is not likely to be a problem because noise arriving via the normal airborne path will usually be greater than ground-borne noise. Ground-borne vibration has the potential to disturb people and damage buildings. Although it is very rare for train-induced ground-borne vibration to cause even cosmetic building damage, it is not uncommon for construction processes (e.g., blasting and pile driving) to cause vibration of sufficient amplitudes to damage nearby buildings (FTA 2018).

Ground-borne vibration is usually measured in terms of vibration velocity, either the root-mean- square (RMS) velocity or peak particle velocity (PPV). The RMS velocity is best for characterizing human response to building vibration, and PPV is used to characterize potential for damage. Decibel notation acts to compress the range of numbers required to describe vibration. The vibration velocity level in decibels is defined as the following:

L
v = 20 log10 [V/Vref]
where Lv is the vibration velocity in decibels (VdB), V is the RMS velocity amplitude, and Vref is the reference velocity amplitude, or 1 x 10-6 inches/second (in/sec) used in the United States.

REGULATORY SETTING
Federal Guidelines
Federal Transit Administration
Vibration standards included in the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (FTA 2018) were used in this analysis because the City of Riverside does not have vibration standards. Table C provides the criteria for assessing the potential for interference or annoyance from vibration levels in a building while Table D lists the potential vibration building damage criteria associated with construction activities.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 8 Table C: Interpretation of Vibration Criteria for Detailed Analysis Land Use Max Lv (VdB)1 Description of Use
Workshop 90 Vibration that is distinctly felt. Appropriate for workshops and similar areas not as sensitive to vibration.

Office 84 Vibration that can be felt. Appropriate for offices and similar areas not as sensitive to vibration.

Residential Day 78 Vibration that is barely felt. Adequate for computer equipment and low- power optical microscopes (up to 20X).

Residential Night and
Operating Rooms 72
Vibration is not felt, but ground-borne noise may be audible inside quiet rooms. Suitable for medium-power microscopes (100X) and other equipment of low sensitivity.

Source: Transit Noise and Vibration Impact Assessment Manual (FTA 2018). 1 As measured in 1/3-octave bands of frequency over the frequency range 8 to 80 Hz.

FTA = United States Federal Transit Administration
Hz = hertz
LV = velocity in decibels
Max = maximum
VdB = vibration velocity decibels

Table D: Construction Vibration Damage Criteria
Building Category PPV (in/sec) Approximate LV (VdB)1
Reinforced concrete, steel, or timber (no plaster) 0.50 102 Engineered concrete and masonry (no plaster) 0.30 98
Nonengineered-timber and masonry buildings 0.20 94
Buildings extremely susceptible to vibration
damage

0.12 90
Source: Transit Noise and Vibration Impact Assessment Manual (FTA 2018). 1 RMS vibration velocity in decibels (VdB) is 1 µin/sec. µin/sec = microinches per second
FTA = Federal Transit Administration
in/sec = inches per second
LV = velocity in decibels
PPV = peak particle velocity
RMS = root-mean-square
VdB = vibration velocity decibels

State Regulations
Title 24
The State’s Noise Insulation Standards (California Building Code [CBC]/California Code of Regulations [CCR] Title 24, Part 2) establishes standards for interior noise attributable to outside noise sources and requires the preparation of acoustical studies wherever a residential building is proposed within the 60 dBA CNEL noise contour created by a freeway, expressway, parkway, major street, thoroughfare, rail line, rail transit line, or industrial noise source. The acoustical study must show that the building has been designed to limit the intrusion of exterior noise such that interior noise levels do not exceed 45 dBA CNEL.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 9 Local Regulations
City of Riverside
Noise Element of the General Plan. The City addresses noise in the Noise Element of its General Plan and lists policies required to meet the City’s noise-related objectives. The applicable objectives and policies for the proposed project are listed below.

Objective N-1: Minimize noise levels from point sources throughout the community and, wherever possible, mitigate the effects of noise to provide a safe and healthful environment.

Policy N-1.1: Continue to enforce noise abatement and control measures parti cularly within residential neighborhoods.

Policy N-1.2: Require the inclusion of noise-reducing design features in development consistent with standards in Table E (City of Riverside Noise/Land Use Compatibility Criteria), Title 24 of the California Code of Regulations, and Title 7 of the Municipal Code.

Policy N-1.3: Enforce the City Noise Control Code to ensure that stationary noise and noise emanating from construction activities, private developments/residences , and special events are minimized.

Policy N–1-5: Avoid locating noise-sensitive land uses in existing and anticipated noise - impacted areas.

Objective N-2: Minimize the adverse effects of airport-related noise through proper land use planning.

Policy N-2.1: Ensure that new development can be made compatible with the noise environment by using noise/land use compatibility standards (Table E) and the airport noise contour maps (found in the Riverside County Airport Land Use Compatibility Plan) as guides to future planning and development decisions.

Policy N-2.2: Avoid placing noise-sensitive land uses (e.g., residential uses, hospitals, assisted-living facilities, group homes, schools, and day care centers) within the high noise impact areas (over 60 dB CNEL) for Riverside Municipal Airport and Flabob Airport in accordance with the Riverside County Airport Land Use Compatibility Plan.

Objective N-3: Ensure the viability of March Air Reserve Base/March Inland Port.

Policy N-3.1: Avoid placing noise-sensitive land uses (e.g., residential uses, hospitals, assisted-living facilities, group homes, schools, and day care centers) within the high noise impact areas (over 65 dB CNEL) for March Air Reserve Base/March Inland Port in accordance with the Riverside County Airport Land Use Compatibili ty Plan.

Objective N-4: Minimize ground transportation–related noise impacts.

Policy N-4.1: Ensure that noise impacts generated by vehicular sources are minimized through the use of noise reduction features (e.g., earthen berms, landscaped walls, lowered streets, and improved technology).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 10 To achieve Objective N-1, the proposed residential project is an infill residential project and was assessed using the Noise/Land Use Noise Compatibility Criteria shown in Table E. As shown in this table, a noise level of up to 65 dBA CNEL is the upper limit of what is considered a “normally acceptable” noise environment, and noise levels between 65 and 75 dBA CNEL are considered a “conditionally acceptable” noise environment for infill single-family residential uses. New development should generally be discouraged within the “unacceptable” category. However, if new development does proceed, a detailed analysis of the noise reduction requirements must be made, and the necessary noise insulation features must be included in the design.

Table E: City of Riverside Noise/Land Use Noise Compatibility Criteria

Source: Figure N-10, Noise Element, General Plan 2025 (City of Riverside 2007).

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 11 Municipal Code. Sections 7.25.010 and 7.30.015 of the City’s Municipal Code establish the maximum permissible noise level that may intrude into a neighbor’s property. Table F provides the City’s maximum noise standards based on the type of land use, the location of the noise (exterior/ interior), and the time period. The noise metric used for stationary sources is defined as noise levels that cannot be exceeded for certain percentages of time, or Ln.

Table F: City of Riverside Maximum Noise Level Standards Type of Land Use Exterior/
Interior Time Period L50
(30 min)1
L25
(15 min)2
L8
(5 min)3
L2
(1 min)4
Lmax
(Anytime) 5
Residential
Exterior 7:00 AM to 10:00 PM 55–60 60 65 70 75
10:00 PM to 7:00 AM 45–50 50 55 60 65
Interior 7:00 AM to 10:00 PM — — 45–50 50 55
10:00 PM to 7:00 AM — — 35–40 40 45
School Interior 7:00 AM to 10:00 PM
(while school is in session) — — 45–50 50 55
Hospital Interior Anytime — — 45–50 50 55
Office/Commercial Exterior Anytime 65–70 70 75 80 85
Industrial Exterior Anytime 70–75 75 80 85 90
Community Support Exterior Anytime 60–65 65 70 75 80
Public Recreation
Facility Exterior Anytime 65–70 70 75 80 85
Nonurban Exterior Anytime 70–75 75 80 85 90
Source: City of Riverside Municipal Code (2022).
1 L50 (exterior) = The exterior noise standard plus up to 5 dBA for a cumulative period of more than 30 minutes in any hour. 2 L 25 (exterior) = The exterior noise standard plus 5 dBA for a cumulative period of more than 15 minutes in any hour. 3 L 8 (exterior) = The exterior noise standard plus 10 dBA for a cumulative period of more than 5 minutes in any hour.

L8 (interior) = The interior noise standard plus up to 5 dBA for a cumulative period of more than 5 minutes in any hour. 4 L 2 (exterior) = The exterior noise standard plus 15 dBA for a cumulative period of more than 1 minute in any hour.

L2 (interior) = The interior noise standard plus 5 dBA for a cumulative period of more than 1 minute in any hour. 5 L max (exterior) = The exterior noise standard plus 20 dBA or the maximum measured ambient noise level for any period of time.

Lmax (interior) = The interior noise standard plus 10 dBA or the maximum measured ambient noise level for any period of time. dBA = A-weighted decibel
Lmax = maximum instantaneous noise level
min = minutes

Section 7.35.020(G) of the City’s Municipal Code exempts noise sources associated with construction, repair, remodeling, or grading of any real property from the noise limits specified in Sections 7.25.010 and 7.30.015 of the City’s Municipal Code, provided the following requirements are met:
a. A permit has been obtained from the City as required; and b. Activities do not take place between the hours of 7:00 p.m. and 7:00 a.m. on weekdays, between the hours of 5:00 p.m. and 8:00 a.m. on Saturdays, or at any time on Sunday or a federal holiday.

EXISTING SETTING
Overview of the Existing Noise Environment
The primary existing noise sources in the project area are transportation facilities. Traffic on State Route 91 (SR-91), Railroad Avenue, Madison Street, and other local streets contribute to the PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 12 ambient noise levels in the project vicinity. The BNSF/Inland Empire-Orange County Railroad Line, which also carries Amtrak trains, is immediately south of the project. Both freight and passenger train operations contribute to the existing noise environment. Other sources of noise in the project area include commercial and industrial activity.

Land Uses in the Project Vicinity
Land uses in the vicinity of the project area include single-family residences, commercial, and industrial uses. Single-family residences and a neighborhood services non-profit organization are located north of the project site. Single-family residences and industrial uses are located to the south of the project site across the existing rail line (BNSF/Inland Empire-Orange County Railroad Line). Commercial uses are located to the east of the project site across Madison Street. Single- family residences are located to the west of the project site.

Ambient Noise Measurements
Six long-term (24-hour) noise level measurements were conducted from December 20 to December 21, 2022, using six Larson Davis Spark 703+, 705+ and 706RC dosimeters. Table G summarizes the results of the long-term noise level measurements along with a description of the measurement locations and noise sources that occurred during the measurements. As shown in Table G, the daytime noise levels ranged from 50.7 to 74.9 dBA Leq, and the nighttime noise levels ranged from 57.8 to 72.9 dBA Leq. The daytime maximum instantaneous noise levels ranged from

63.2 to 95.5 dBA and the nighttime instantaneous noise level ranged from 65.5 to 89.8 dBA. Also, the calculated CNEL levels from the long-term noise level measurements at monitors LT-1 through LT-6 range from 69.4 to 75.7 dBA. The long-term noise level measurement survey sheets are provided in Appendix A. Figure 3 shows the long-term noise monitoring locations.

Existing Train Noise
The BNSF/Inland Empire-Orange County Railroad Line is immediately south of the project site. The train crossing data from the Federal Railroad Administration Office of Safety Analysis show there are approximately 60 freight and passenger trains per day. Based on a review of the noise monitoring gathered, noise generated from train operations was captured during the long-term noise level measurements.

Existing Train Vibration Measurements
To assess the vibration levels generated by train pass-bys, vibration measurements were gathered on March 31, 2023 at the location of the closest proposed building façade to the existing train tracks. A measurement of a freight train pass-by lasting approximately 2 minutes and a measurement of a passenger train pass-by lasting approximately 15 seconds were gathered consistent with the methodologies presented in the FTA Manual. The 1/3 octave band data of each pass-by is presented in Appendix A. Figure 3 shows the location of the vibration measurements.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices LT-1LT-1LT-1
SOURCE: Google Earth (2022)
FEET
3501750
FIGURE 3
Noise and Vibration Monitoring Locations
I:\GBC2201\G\Noise_Monitor_Locs.ai (4/13/2023)
Madison Flats Project
- Project Site Boundary
- Long-term Noise Monitoring Location
LEGEND
LT-2LT-2LT-2
LT-3LT-3LT-3
LT-4LT-4LT-4
LT-5LT-5LT-5 LT-6LT-6LT-6
LT-1LT-1LT-1
- Vibration Monitoring Location
Indiana AveIndiana Ave
Casa Blanca StCasa Blanca St
Railroad AveRailroad Ave
Evans StEvans St
Peters StPeters St
Pliny StPliny St
Grace StGrace St
Cary StCary St
Winstrom StWinstrom St
Samuel StSamuel St
Madison StMadison St
Depot StDepot St
Indiana Ave
Casa Blanca St
Railroad Ave
Evans St
Peters St
Pliny St
Grace St
Cary St
Winstrom St
Samuel St
Madison St
Depot St
91 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 14 Table G: Long-Term Ambient Noise Monitoring Results
Monitor
No. Location
Noise Level (dBA)
Noise Sources Daytime Nighttime CNEL Leq Lmax Leq Lmax
LT-1 3303 Madison Street. On a utility
pole at the southern property
boundary of the Farmer Boys
Restaurant near the BNSF/Inland
Empire-Orange County Railroad
Line, approximately 65 ft from
Madison Street centerline.

65.7-74.8 82.9-95.4 62.0-71.0 73.0-89.8 74.1 Train noise and traffic noise on Madison Street.

LT-2 7555 Evans Street. Industrial
property south of the project site
and south of the BNSF/Inland
Empire-Orange County Railroad
Line near the chain-linked fence.

57.0-70.4 70.7-92.4 59.6-68.2 65.5-87.2 70.9 Train noise and traffic noise on Evans Street.

LT-3 On a palm tree on the project site.

Near Winstrom Street and
Railroad Avenue, approximately
130 ft from Railroad Avenue
centerline.

56.5-68.9 72.0-84.2 62.2-69.0 73.5-85.2 72.3 Train noise and traffic noise on Railroad Avenue.

LT-4 7695 Evans Street. Attached to a
bush in the backyard of the
residence.

50.7-64.9 63.2-80.6 57.8-67.4 68.0-77.0 69.4 Train noise and traffic noise on Evans Street.

LT-5 7760 Casa Blanca Street. On a
utility pole near the backyard,
approximately 20 ft from Railroad
Avenue centerline.

61.3-74.9 76.6-95.5 63.9-72.9 74.0-82.2 75.7 Train noise and traffic noise on Railroad Avenue.

LT-6 7552 Casa Blanca Street. On a
utility pole near the backyard,
approximately 20 ft from Railroad
Avenue centerline.

58.8-71.7 78.8-93.4 61.1-68.5 72.3-85.6 72.0 Train noise and traffic noise on Railroad Avenue.

Source: Compiled by LSA (2023).

Note: Long-term (24-hour) noise level measurements were conducted from December 20, 2022, to December 21, 2022.

CNEL = Community Noise Equivalent Level
dBA = A-weighted decibels
ft = foot/feet
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level

Existing Aircraft Noise
The closest airports to the project site are the Riverside Municipal Airport (RAL) and Flabob Airport, which are respectively located 2.1 miles northwest and 3.8 miles north of the project site. Based on the Riverside County Airport Land Use Compatibility Plan (Riverside County ALUC 2004), the project site is outside the 55 dBA CNEL noise contours of Riverside Municipal Airport and Flabob Airport.

There are no private airstrips located within the vicinity of the project site. Therefore, the proposed project would not expose people residing or working in the project area to excessive noise levels, and this topic is not discussed further.

Existing Traffic Noise
The Federal Highway Administration (FHWA) Highway Traffic Noise Prediction Model (FHWA RD-77- 108) was used to evaluate traffic-related noise conditions along roadway segments in the project vicinity. This model requires various parameters (including traffic volumes, vehicle mix, vehicle speed, and roadway geometry) to compute typical equivalent noise levels during daytime, evening, PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 15 and nighttime hours. The resulting noise levels are weighted and summed over 24-hour periods to determine the CNEL values. The existing average daily traffic (ADT) volumes were obtained from the Traffic Operations Analysis for the Madison Flats Project (LSA 2023b). The standard vehicle mix for Southern California roadways was used for roadways in the project vicinity. Table H lists the existing traffic noise levels on roadways in the project vicinity. These noise levels represent the worst-case scenario, which assumes that no shielding is provided between traffic and the location where the noise contours are drawn. The specific assumptions used in developing these noise levels and the model printouts are provided in Appendix B.

Table H: Existing Traffic Noise Levels
Roadway Segment ADT Centerline to
70 CNEL (ft)
Centerline to
65 CNEL (ft)
Centerline to
60 CNEL (ft)
CNEL (dBA) 50 ft
from Centerline of
Outermost Lane
Railroad Avenue West of Winstrom Street 385 < 50 < 50 < 50 46.6 Railroad Avenue Between Winstrom Street
and Madison Street 460 < 50 < 50 < 50 47.4
Madison Street between Indiana Avenue
and Railroad Avenue 12,186 < 50 61 123 63.5
Madison Street Between Railroad Avenue
and Evan Street 12,221 < 50 61 123 63.6
Source: Compiled by LSA (2023).

Note: Traffic noise within 50 ft of the roadway centerline should be evaluated with site-specific information.

ADT = average daily traffic
CNEL = Community Noise Equivalent Level
dBA = A-weighted decibels
ft = foot/feet

IMPACTS
Short-Term Construction Noise Impacts
Two types of short-term noise impacts could occur during construction on the project site. The first type would be from construction crew commutes and the transport of construction equipment and materials to the project site and would incrementally raise noise levels on roadways leading to the site. The pieces of construction equipment for construction activities would move on site, would remain for the duration of each construction phase, and would not add to the daily traffic volume in the project vicinity. Although there would be a relatively high single-event noise exposure potential causing intermittent noise nuisance (passing trucks at 50 ft would generate up to a maximum of 84 dBA), the effect on longer-term ambient noise levels would be small because the number of daily construction-related vehicle trips is small compared to existing daily traffic volume on Madison Street and Railroad Avenue. Project construction would generate a maximum of 240 trips per day based on the California Emissions Estimator Model (CalEEMod) (Version 2020.4.0) results contained in Attachment B of the Madison Flats Project Air Quality, Greenhouse Gas Emissions, and Energy Impact Analysis Memorandum (LSA 2023a). Roadways that would be used to access the project site are Madison Street and Railroad Avenue. Based on Table H, Railroad Avenue and Madison Street have estimated existing daily traffic volumes of 12,186 and 385, respectively, near the project site.

Based on the information above, construction
-rel
ated traffic would increase noise by up to 2.1 dBA.

A noise level increase of less than 3 dBA would not be perceptible to the human ear in an outdoor environment. Therefore, no short-term, construction-related impacts associated with worker PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 16 commutes and transport of construction equipment and material to the project site would occur, and no noise reduction measures would be required.

The second type of short-term noise impact is related to noise generated from construction activities. Construction is performed in discrete steps, each of which has its own mix of equipment and, consequently, its own noise characteristics. The proposed project anticipates site preparation, grading, building construction, paving, and architectural coating phases of construction. These various sequential phases change the character of the noise generated on a project site. Therefore, the noise levels vary as construction progresses. Despite the variety in the type and size of construction equipment, similarities in the dominant noise sources and patterns of operation allow construction-related noise ranges to be categorized by work phase. Table I lists the L max
recommended for noise impact assessments for typical construction equipment included in the FHWA Highway Construction Noise Handbook (2006), based on a distance of 50 ft between the equipment and a noise receptor.

Table I: Typical Construction Equipment Noise Levels
Equipment Description Acoustical Usage Factor1 Maximum Noise Level (Lmax) at 50 ft2
Backhoe 40 80
Compactor (ground) 20 80
Compressor 40 80
Crane 16 85
Dozer 40 85
Dump Truck 40 84
Excavator 40 85
Flatbed Truck 40 84
Forklift 20 85
Front-End Loader 40 80
Grader 40 85
Impact Pile Driver 20 95
Jackhammer 20 85
Pickup Truck 40 55
Pneumatic Tools 50 85
Pump 50 77
Rock Drill 20 85
Roller 20 85
Scraper 40 85
Tractor 40 84
Welder 40 73
Source: Table 9.1, FHWA Highway Construction Noise Handbook (FHWA 2006).

Note: The noise levels reported in this table are rounded to the nearest whole number. 1 Usage factor is the percentage of time during a construction noise operation that a piece of construction equipment is operating at full power.
2 Maximum noise levels were developed based on Spec 721.560 from the CA/T program to be consistent with the City of Boston, Massachusetts, Noise Code for the “Big Dig” project.

CA/T = Central Artery/Tunnel
FHWA = Federal Highway Administration
ft = foot/feet
Lmax = maximum instantaneous noise level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 17 Table J lists the anticipated construction equipment for each construction phase based on the CalEEMod (Version 2020.4.0) results contained in Attachment B of the Madison Flats Project Air Quality, Greenhouse Gas Emissions, and Energy Impact Analysis Memorandum (LSA 2023a). Table J shows the combined noise level at 50 ft from all of the equipment in each phase as well as the L eq
noise level for each equipment at 50 ft based on the quantity, reference instantaneous maximum (Lmax) noise level at 50 ft, and the acoustical usage factor. As shown in Table J, construction noise levels would reach up to 89.8 dBA Lmax (87.3 Leq) at a distance of 50 ft.

Table J: Summary of Construction Phase, Equipment, and Noise Levels Construction
Phase
Construction
Equipment Quantity Reference Noise Level
at 50 ft (dBA Lmax)
Acoustical Usage
Factor1 (%)
Noise Level at 50 ft (dBA)
Lmax Leq Combined (Leq)
Site Preparation Bulldozers 3 85 40 89.8 85.8 87.3 Front-End Loaders 4 80 40 86.0 82.0 Grading
Excavator 1 85 40 85.0 81.0

87.0 Grader 1 85 40 85.0 81.0
Bulldozer 1 85 40 85.0 81.0
Front-End Loaders 3 80 40 84.8 80.8
Building
Construction
Crane 1 85 16 85.0 77.0

86.5 Forklifts 3 85 20 89.8 82.8
Generator 1 82 50 82.0 79.0
Front-End Loaders 3 80 40 84.8 80.8
Welders 1 73 40 73.0 69.0
Paving
Pavers 2 80 20 83.0 76.0

86.9 Paving Equipment 1 85 50 85.0 82.0
Pavement Scarafier 2 85 20 88.0 81.0
Rollers 2 85 20 88.0 81.0
Front-End Loaders 1 80 40 80.0 76.0
Architectural
Coating Air Compressors 1 80 40 80.0 76.0 76.0
Source: Compiled by LSA (2023).
1 The acoustical usage factor is the percentage of time during a construction noise operation that a piece of construction equipment operates at full power.
dBA = A-weighted decibels
ft = foot/feet
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level

The closest residential property line is located approximately 85 ft from the center of the project site and may be subject to short-term construction noise reaching 88.1 dBA Lmax (82.7 dBA Leq) generated by construction activities in the project area. Construction noise is temporary and would stop once project construction is completed. Compliance with the City’s permitted hours of construction pursuant to Section 7.35.010 of the City’s Municipal Code would minimize construction-related noise and ensure construction noise would not be generated during the more sensitive nighttime hours. Therefore, no construction noise impacts would occur, and no noise reduction measures are required.

Short-Term Construction Vibration Impacts
This construction vibration impact analysis discusses the level of human annoyance using vibration levels in VdB and assesses the potential for building damage using vibration levels in PPV (in/sec).

Vibration levels calculated in RMS velocity are best for characterizing human response to building vibration, whereas vibration levels in PPV are best for characterizing damage potential.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 18 Table K shows the reference vibration levels at a distance of 25 ft for each type of standard construction equipment from the Transit Noise and Vibration Impact Assessment Manual (FTA 2018). Outdoor site preparation for the proposed project is expected to require the use of a large bulldozer and loaded trucks, which would generate ground-borne vibration of up to 87 VdB (0.089 PPV [in/sec]) and 86 VdB (0.076 PPV [in/sec] when measured at 25 ft, respectively.

Table K: Vibration Source Amplitudes for Construction Equipment Equipment Reference PPV/LV at 25 ft
PPV (in/sec) LV (VdB)1
Pile Driver (Impact), Typical 0.644 104
Pile Driver (Sonic), Typical 0.170 93
Vibratory Roller 0.210 94
Hoe Ram 0.089 87
Large Bulldozer2 0.089 87
Caisson Drilling 0.089 87
Loaded Trucks2 0.076 86
Jackhammer 0.035 79
Small Bulldozer 0.003 58
Sources: Transit Noise and Vibration Impact Assessment Manual (FTA 2018). 1 RMS vibration velocity in decibels (VdB) is 1 µin/sec. 2 Equipment shown in bold is expected to be used on site. µin/sec = microinches per second
ft = foot/feet
FTA = Federal Transit Administration
in/sec = inches per second
LV = velocity in decibels
PPV = peak particle velocity
RMS = root-mean-square
VdB = vibration velocity decibels

The greatest vibration levels are anticipated to occur during the site preparation and grading phase.

All other phases are expected to result in lower vibration levels. The distance to the nearest buildings for vibration impact analysis is measured between the nearest off-site buildings and the project boundary (assuming the construction equipment would be used at or near the project boundary) because vibration impacts normally occur within the buildings.

The formula for vibration transmission is provided below:

L
vdB (D) = LvdB (25 ft) - 30 Log (D/25)
PPVequip = PPVref x (25/D)1.5
Table L lists the projected vibration levels from various construction equipment expected to be used on the project site in the active construction area to the nearest buildings in the project vicinity. As shown in Table L, the closest residential, commercial, and industrial buildings are approximately 85 ft, 195 ft, and 115 ft, respectively, from the active project construction area near the center of the project site would experience vibration levels of up to 71 VdB, 60 VdB, and 67 VdB, respectively.

These vibration levels would not result in community annoyance because they would not exceed the FTA community annoyance threshold of 84 VdB for commercial and industrial uses because they are not as sensitive to vibration and 78 VdB for daytime residences. Other building structures that surround the project site would experience lower vibration levels because they are farther away.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 19 Similarly, Table M lists the projected vibration levels from various construction equipment expected to be used on the project site at the project construction boundary to the nearest buildings in the project vicinity. As shown in Table M, the closest residential, commercial, and industrial buildings are approximately 65 ft, 90 ft, and 85 ft, respectively, from the project construction boundary and would experience vibration levels of up to 0.021 PPV (in/sec), 0.013 PPV (in/sec), and 0.014 PPV (in/sec), respectively. Vibration levels at the closest residential building would not result in building Table L: Potential Construction Vibration Annoyance
Land Use Direction Equipment/Activity Reference Vibration Level (VdB) at 25 ft
Distance to
Structure (ft)1
Vibration
Level (VdB)
Residential North Large bulldozers 87 85 71
Loaded trucks 86 85 70
Commercial East Large bulldozers 87 195 60
Loaded trucks 86 195 59
Residential South Large bulldozers 87 105 68
Loaded trucks 86 105 67
Industrial South Large bulldozers 87 115 67
Loaded trucks 86 115 66
Source: Compiled by LSA (2023).

Note: The FTA-recommended annoyance threshold of 84 VdB for offices (and other similar areas not as sensitive to vibration), and 78 VdB for daytime residences was used to assess potential construction vibration annoyance. 1 Distance from the active construction area near the center of the project site to the building structure. ft = foot/feet
FTA = Federal Transit Administration
VdB = vibration velocity decibels

Table M: Potential Construction Vibration Damage
Land Use Direction Equipment/
Activity
Reference Vibration Level
(PPV [in/sec]) at 25 ft
Distance to
Structure (ft)1
Vibration Level
(PPV [in/sec])
Residential North Large bulldozers 0.089 65 0.021
Loaded trucks 0.076 65 0.018
Commercial East Large bulldozers 0.089 90 0.013
Loaded trucks 0.076 90 0.011
Residential South Large bulldozers 0.089 80 0.016
Loaded trucks 0.076 80 0.013
Industrial South Large bulldozers 0.089 85 0.014
Loaded trucks 0.076 85 0.012
Source: Compiled by LSA (2023).

Note: The FTA-recommended building damage threshold is 0.20 PPV [in/sec]) at the receiving non-engineered timber and masonry building.
1 Distance from the project construction boundary to the building structure. ft = foot/feet
FTA = Federal Transit Administration
in/sec = inches per second
PPV = peak particle velocity
VdB = vibration velocity decibels

damage because the residential, commercial, and industrial buildings would be constructed equivalent to or better than non-engineered timber and masonry and vibration levels would not exceed the FTA vibration damage threshold of 0.20 PPV (in/sec). Other building structures that surround the project site would experience lower vibration levels because they are farther away and PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 20 would be constructed equivalent to or better than non-engineered timber and masonry. Therefore, no construction vibration impacts would occur during project construction.

Long-Term Traffic Noise Impacts
The FHWA Highway Traffic Noise Prediction Model (FHWA RD-77-108) was used to evaluate traffic- related noise conditions along street segments in the project vicinity. This model requires various parameters, including traffic volumes, vehicle mix, vehicle speed, and roadway geometry, to compute typical equivalent noise levels during daytime, evening, and nighttime hours. The resulting noise levels are weighted and summed over 24-hour periods to determine the CNEL values. The Existing (2022), Opening Year (2025), and Cumulative (2045) ADT volumes were obtained from the Traffic Operations Analysis for the Madison Flats Project (LSA 2023b). The standard vehicle mix for Southern California roadways was used for roadways in the project vicinity. Tables N, O, and P list the traffic noise levels for the Existing (2022), Opening Year (2025), and Cumulative (2045) Without and With Project scenarios, respectively. These noise levels represent the worst-case scenario, which assumes that no shielding is provided between the traffic and the location where the noise contours are drawn. The specific assumptions used in developing these noise levels and the model printouts are provided in Appendix B.

Tables N, O, and P show that the proposed project would result in a project-related traffic noise increase of up to 1.4 dBA, except for Railroad Avenue between Winstrom Street and Madison Street, which would result in a project-related traffic noise increase of up to 3.4 dBA. Residences along Railroad Avenue between Winstrom Street and Madison Street are approximately 25 ft from the Railroad Avenue centerline and would be exposed to traffic noise levels up to 58.1 dBA CNEL.

The overall project-related traffic noise increase would be 0.2 dBA when factoring the ambient noise level of 72 dBA CNEL at LT-6 because rail noise from the BNSF/Inland Empire-Orange County Railroad Line and traffic noise on Madison Street and other roadways dominate the existing noise environment in this area. This noise level increase is below 3 dBA and would not be perceptible to the human ear in an outdoor environment. Therefore, no off-site traffic noise impacts would occur, and no noise reduction measures are required.
.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 21 Table N: Existing (2022) Traffic Noise Levels Without and With Project Roadway Segment
Without Project Traffic Conditions With Project Traffic Conditions ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
Increase
from
Baseline
Conditions
Railroad Avenue west of Winstrom Street 385 < 50 < 50 < 50 46.6 537 < 50 < 50 < 50 48.0 1.4 Railroad Avenue between Winstrom Street
and Madison Street
460 < 50 < 50 < 50 47.4 1,010 < 50 < 50 < 50 50.8 3.4
Madison Street between Indiana Avenue and
Railroad Avenue
12,186 < 50 61 123 63.5 12,614 < 50 62 126 63.7 0.2
Madison Street between Railroad Avenue
and Evan Street
12,221 < 50 61 123 63.6 12,343 < 50 61 124 63.6 0.0
Source: Compiled by LSA (2023).

Note: Traffic noise within 50 ft of the roadway centerline should be evaluated with site-specific information.

ADT = average daily traffic
CNEL = Community Noise Equivalent Level
dBA = A-weighted decibels
ft = foot/feet

Table O: Opening Year (2025) Traffic Noise Levels Without and With Project Roadway Segment
Without Project Traffic Conditions With Project Traffic Conditions ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
Increase
from
Baseline
Conditions
Railroad Avenue west of Winstrom Street 408 < 50 < 50 < 50 46.8 560 < 50 < 50 < 50 48.2 1.4 Railroad Avenue between Winstrom Street
and Madison Street
488 < 50 < 50 < 50 47.6 1,038 < 50 < 50 < 50 50.9 3.3
Madison Street between Indiana Avenue and
Railroad Avenue
12,977 < 50 63 128 63.8 13,405 < 50 64 131 64.0 0.2
Madison Street between Railroad Avenue
and Evan Street
13,014 < 50 63 128 63.8 13,136 < 50 64 129 63.9 0.1
Source: Compiled by LSA (2023).

Note: Traffic noise within 50 ft of the roadway centerline should be evaluated with site-specific information.

ADT = average daily traffic
CNEL = Community Noise Equivalent Level
dBA = A-weighted decibels
ft = foot/feet

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 22 Table P: Cumulative (2045) Traffic Noise Levels Without and With Project Roadway Segment
Without Project Traffic Conditions With Project Traffic Conditions ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
ADT
Centerline
to 70 dBA
CNEL (ft)
Centerline
to 65 dBA
CNEL (ft)
Centerline
to 60 dBA
CNEL (ft)
CNEL (dBA)
50 ft from
Centerline of
Outermost
Lane
Increase
from
Baseline
Conditions
Railroad Avenue west of Winstrom Street 445 < 50 < 50 < 50 47.2 597 < 50 < 50 < 50 48.5 1.3 Railroad Avenue between Winstrom Street
and Madison Street
532 < 50 < 50 < 50 48.0 1,082 < 50 < 50 < 50 51.1 3.1
Madison Street between Indiana Avenue and
Railroad Avenue
14,115 < 50 66 135 64.2 14,543 < 50 67 138 64.3 0.1
Madison Street between Railroad Avenue
and Evan Street
14,150 < 50 66 135 64.2 14,272 < 50 67 136 64.2 0.0
Source: Compiled by LSA (2023).

Note: Traffic noise within 50 ft of the roadway centerline should be evaluated with site-specific information.

ADT = average daily traffic
CNEL = Community Noise Equivalent Level
dBA = A-weighted decibels
ft = foot/feet

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 23 Long-Term Stationary Source Noise Impacts
HVAC Equipment
The proposed project includes on-site rooftop heating, ventilation, and air conditioning (HVAC) units for the 121 residential units and amenity buildings. It is estimated that the proposed project would have a total of 129 HVAC units on site and could potentially operate 24 hours per day. The HVAC equipment would generate a sound power level (SPL) of 76 dBA, which would be equivalent to

44.4 dBA Leq at 50 ft. The specifications of typical HVAC equipment are provided in Appendix C. The parapet and roofline would provide a minimum noise reduction of 5 dBA.

Table Q shows the noise levels generated by HVAC equipment at the property line of the closest off- site land use along with the total number of HVAC units, range of distances from the equipment to the property line, range of distance attenuation, and shielding from the roofline and parapet. As shown in Table Q, noise levels generated from on-site HVAC units would not exceed the City’s exterior daytime (7:00 a.m. to 10:00 p.m.) and nighttime (10:00 p.m. to 7:00 a.m.) 30-minute (L50) noise standards of 60 dBA and 50 dBA, respectively, for residential uses. Also, noise levels generated from on-site HVAC units would not exceed the City’s exterior 30-minute (L50) noise standards of 70 dBA and 75 dBA for commercial and industrial uses, respectively. The detailed HVAC noise analysis is provided in Appendix D. Therefore, no off-site noise impacts from on-site HVAC equipment would occur. No noise reduction measures are required.

Table Q: HVAC Noise Levels
Land Use Direction HVAC
Unit Total
Distance1
(ft)
Distance Attenuation
(dBA)
Shielding2
(dBA)
Noise Level3
(dBA Leq)
Residential (3245 Depot Street) North 129 88-1,300 4.9-28.3 5 47.4 Commercial (3303 Madison Street) East 129 166-1,613 10.4-30.2 5 41.6 Residential (7715 Evans Street) South 129 129-1,314 8.2-28.4 5 46.0 Industrial (7555 Evans Street) South 129 127-919 8.1-25.3 5 45.7 Source: Compiled by LSA (2023).
1 Distance from the equipment to the property line.
2 Noise reduction from roofline and parapet.
3 The composite noise level at the property line.
dBA = A-weighted decibels
ft = foot/feet
HVAC = heating, ventilation, and air conditioning
Leq = equivalent continuous sound level

Long-Term Ground-Borne Noise and Vibration from Vehicular Traffic Once operational, the proposed project would not generate vibration. In addition, vibration levels generated from project-related traffic on the adjacent roadways (i.e., Madison Street and Railroad Avenue) would be unusual for on-road vehicles because the rubber tires and suspension systems of on-road vehicles provide vibration isolation. Therefore, no vibration impacts from project-related traffic on the adjacent roadways would occur, and no vibration reduction measures are required.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

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M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 24 Land Use Compatibility Assessment
Exterior Vibration Assessment
As presented above, reference vibration measurements of train pass-bys were gathered on the project site. The distance of the vibration measurements from the train tracks is consistent with the distance of the nearest building façade to the tracks. The vibration data, presented in Appendix A, shows that vibration levels between 8 and 80 Hz range from 50.6 to 67.0 VdB during a freight train pass-by are less than the maximum Lv level of 72 VdB which represents the criterion curve for residential uses during nighttime hours. Vibration levels during passenger train pass-bys are lower and would also not exceed the nighttime vibration criterion.

Exterior Noise Assessment
To assess exterior noise levels at the proposed amenity areas and residential uses of the project site, as shown in Table G, long-term noise level measurements were gathered. The daily noise levels, presented in Table G adjusted for distance, show that noise levels at the amenity areas and residences close to the rail line will approach 76 dBA CNEL. Similarly, noise levels at residential units closest to Madison Street would approach 71 dBA CNEL. As presented above in Table E and as identified in the Noise Element of the General Plan (City of Riverside 2007), for exterior areas of in-fill developments, noise levels up to 75 dBA CNEL are considered conditionally acceptable. With the proposed 6 ft high sound barrier along the southern property line adjacent to the outdoor common recreational area and the 5 ft high sound barriers at the 3 rd floor amenity spaces as
identified in Figure 4, the reduction provided in Appendix E (a minimum 5 dBA) would be enough to reduce levels to below 75 dBA CNEL. The barriers should be solid with no gaps or spaces including at the base of barrier on the eastern and southern side. The material of the barriers is flexible as long as they either have a minimum density of 4.0 pounds per square foot (lb/ft2) or be sound rated with test data supporting a reduction of 5 dBA or more. Also, the other proposed walls within the residential development would further reduce exterior noise levels at the residential uses to the extent feasible.

Interior Noise Assessment
As discussed above, consistent with CCR Title 24, Part 2, the City requires an interior noise level standard of 45 dBA CNEL or less for all noise-sensitive rooms within residential uses. Based on the measured exterior noise levels, noise levels at second floor receptors and above would approach 76 dBA CNEL, and noise levels on the eastern side would approach 71 dBA CNEL, requiring reductions of 31 dBA CNEL and 26 dBA CNEL, respectively.

Based on the United States Environmental Protection Agency (EPA) Protective Noise Levels (1978), with a combination of exterior walls, doors, and windows, standard construction for Southern California (warm climate) commercial or residential buildings would provide more than 24 dBA in exterior-to-interior noise reduction with windows closed and 12 dBA or more with windows open.

Because the project would include a form of mechanical ventilation, windows and doors could remain closed.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 5(48,5('
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I:\GBC2201\G\Sound_Barrier.ai (5/19/2023)
SOURCE: Studioneleven
Sound Barrier Locations
152 Utah Avenue
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 26 Sample interior noise calculations were completed, as presented in Appendix F, that assume standard building construction and upgraded window assemblies. Based on reference information from transmission loss test reports for various Milgard windows (Milgard Windows 2008), the homes along the southern property line would require upgraded windows with sound transmission class (STC) ratings of approximately 35, depending on the wall details at the façades with a view of the rail line to the south. For the homes along the northern, eastern, and western property lines, noise levels would approach 71 dBA CNEL, requiring a reduction of 26 dBA. This can be typically be achieved with standard building construction and upgraded windows with STC ratings of 29, depending on the wall construction details. For all other units, standard building construction along with standard windows, typically in the STC 25-28 range, interior noise levels of 45 dBA CNEL or less would be achieved.

Once final plans are available and a window manufacturer has been chosen, a Final Acoustical Report (FAR) would be required to confirm the reduction capability of the exterior façades and to identify any specific upgrades necessary to achieve an interior noise level of 45 dBA CNEL or below.

REGULATORY COMPLIANCE MEASURES
The following regulatory compliance measure would ensure construction noise is limited to the less- sensitive daytime hours:
• The construction contractor shall limit construction activities to between the hours of 7:00 a.m. and 7:00 p.m. on weekdays and between the hours of 8:00 a.m. and 5:00 p.m. on Saturdays pursuant to Section 7.35.010 of the City’s Municipal Code. Construction is prohibited outside these hours or at any time on Sundays and federal holidays.

REDUCTION MEASURES
Short-Term Construction Noise Impacts
No noise reduction measures are required.

Short-Term Construction Vibration Impacts
No vibration reduction measures are required.

Long-Term Aircraft Noise Impacts
No noise reduction measures are required.

Long-Term Traffic Noise Impacts
No noise reduction measures are required.

Long-Term Stationary Noise Impacts
No noise reduction measures are required.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23» 27 Long-Term Vibration Impacts
No vibration reduction measures are required.

REFERENCES
City of Riverside. 2007. General Plan 2025, Noise Element. November. Website: https://river sideca. gov/cedd/sites/riversideca.gov.cedd/files/pdf/planning/general-plan/10_Noise_Element_ with%20maps.pdf (accessed April 2023).
_____. 2022. Municipal Code. Title 7—Noise Control. October 25. Website:
https://library.municode.com/ca/riverside/codes/code_of_ordinances?nodeId=PTIICOOR_TI T7NOCO (accessed April 2023).

Federal Highway Administration (FHWA). 1977. Highway Traffic Noise Prediction Model, FHWA RD-77-108.
_____. 2006. FHWA Highway Construction Noise Handbook. Roadway Construction Noise Model, FHWA-HEP-06-015. DOT-VNTSC-FHWA-06-02. NTIS No. PB2006-109012. August.

Federal Railroad Administration (FRA). Office of Safety Analysis. Crossing Inventory and Accident Reports. Website: https://safetydata.fra.dot.gov/OfficeofSafety/PublicSite/Crossing/ Crossing.aspx (accessed April 2023).

Federal Transit Administration (FTA). 2018. Transit Noise and Vibration Impact Assessment Manual.

FTA Report No. 0123. September. Website: https://www.transit.dot.gov/sites/fta.dot.gov/ files/docs/research-innovation/118131/transit-noise-and-vibration-impact-assessment- manual-fta-report-no-0123_0.pdf (accessed April 2023).

Harris, Cyril M., ed. 1991. Handbook of Acoustical Measurements and Noise Control. 3 rd Edition.

McGraw-Hill, Inc.

LSA Associates, Inc. 2023a. Madison Flats Project Air Quality, Greenhouse Gas Emissions, and Energy Impact Analysis Memorandum. February.
_____. 2023b. Traffic Operations Analysis for the Madison Flats Project. February.

Milgard Windows. 2008. Sound Transmission Loss Tests. Various Reports.

Riverside County Airport Land Use Commission (ALUC). 2004. Riverside County Airport Land Use Compatibility Plan. October 14. Website: http://www.rcaluc.org/Plans/New-Compatibility- Plan (accessed April 2023).

United States Environmental Protection Agency (EPA). 1978. Protective Noise Levels: Condensed Version of EPA Levels Document. EPA 550/9-79-100. November.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX A

NOISE MONITORING SURVEY SHEETS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 706RC (SN:905)

Site Number: LT-1 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: 3303 Madison Street. At the southern property boundary of Farmer Boys Restaurant near the BNSF rail line on a utility pole.

Primary Noise Sources: Train noise a nd traffic noise on Madison Street.

Comments:

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-1 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 66.5 85.5 55.8
2:00 PM 12/20/22 67.2 90.7 56.3
3:00 PM 12/20/22 66.2 85.0 56.5
4:00 PM 12/20/22 68.0 89.6 56.3
5:00 PM 12/20/22 68.8 88.6 61.2
6:00 PM 12/20/22 69.6 88.0 61.6
7:00 PM 12/20/22 68.7 87.4 62.4
8:00 PM 12/20/22 67.6 86.9 60.0
9:00 PM 12/20/22 70.2 88.9 59.8
10:00 PM 12/20/22 65.0 81.8 58.9
11:00 PM 12/20/22 63.1 74.7 57.7
12:00 AM 12/21/22 63.1 73.0 57.3
1:00 AM 12/21/22 62.0 74.1 54.9
2:00 AM 12/21/22 63.5 83.5 55.3
3:00 AM 12/21/22 64.5 83.2 57.8
4:00 AM 12/21/22 67.6 87.7 61.5
5:00 AM 12/21/22 70.1 89.7 63.7
6:00 AM 12/21/22 71.0 89.8 65.0
7:00 AM 12/21/22 74.8 95.4 64.2
8:00 AM 12/21/22 71.8 94.1 60.8
9:00 AM 12/21/22 72.7 93.3 55.0
10:00 AM 12/21/22 67.0 87.8 55.0
11:00 AM 12/21/22 65.7 82.9 56.6
12:00 PM 12/21/22 66.5 89.0 55.2
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 706RC (SN:119)

Site Number: LT-2 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: 7555 Evans Street. I ndustrial property south of the project site and south of the BNSF rail line near the chain linked fence.

Primary Noise Sources: Train noise and traffic noise on Evans Street.

Comments:

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-2 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 57.0 72.9 53.1
2:00 PM 12/20/22 57.7 74.5 52.3
3:00 PM 12/20/22 57.0 75.4 52.9
4:00 PM 12/20/22 61.1 86.5 52.9
5:00 PM 12/20/22 61.0 72.7 57.1
6:00 PM 12/20/22 65.2 89.6 59.6
7:00 PM 12/20/22 64.5 70.7 59.9
8:00 PM 12/20/22 68.5 87.2 57.3
9:00 PM 12/20/22 68.2 89.8 55.8
10:00 PM 12/20/22 61.2 81.8 56.7
11:00 PM 12/20/22 60.4 73.9 53.6
12:00 AM 12/21/22 61.2 71.5 54.6
1:00 AM 12/21/22 59.6 65.5 53.9
2:00 AM 12/21/22 61.1 67.2 53.3
3:00 AM 12/21/22 60.9 77.5 55.7
4:00 AM 12/21/22 64.1 71.4 59.5
5:00 AM 12/21/22 66.5 72.6 60.5
6:00 AM 12/21/22 68.2 87.2 63.4
7:00 AM 12/21/22 70.4 91.7 60.8
8:00 AM 12/21/22 67.8 91.6 57.5
9:00 AM 12/21/22 68.4 90.8 49.2
10:00 AM 12/21/22 62.9 92.4 51.3
11:00 AM 12/21/22 58.8 77.2 52.6
12:00 PM 12/21/22 58.4 82.5 50.3
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 706RC (SN:906)

Site Number: LT-3 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: On the project site and on a pa lm tree. Near Winstrom Street and Railroad Avenue.

Primary Noise Sources: Train noise a nd traffic noise on Railroad Avenue.

Comments:

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-3 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 57.8 79.2 50.4
2:00 PM 12/20/22 56.5 73.7 49.7
3:00 PM 12/20/22 59.1 78.7 51.0
4:00 PM 12/20/22 58.8 77.8 50.8
5:00 PM 12/20/22 63.5 84.2 55.9
6:00 PM 12/20/22 66.2 83.0 59.4
7:00 PM 12/20/22 66.7 83.3 61.6
8:00 PM 12/20/22 66.4 78.9 59.1
9:00 PM 12/20/22 65.3 72.0 59.2
10:00 PM 12/20/22 65.6 79.2 59.0
11:00 PM 12/20/22 63.6 80.0 57.3
12:00 AM 12/21/22 63.7 73.5 56.4
1:00 AM 12/21/22 62.2 75.4 55.7
2:00 AM 12/21/22 62.8 77.6 56.4
3:00 AM 12/21/22 64.8 85.2 56.6
4:00 AM 12/21/22 66.5 79.5 61.4
5:00 AM 12/21/22 69.0 82.1 64.6
6:00 AM 12/21/22 68.6 80.4 64.7
7:00 AM 12/21/22 68.9 80.7 64.9
8:00 AM 12/21/22 66.9 73.8 61.9
9:00 AM 12/21/22 62.2 79.9 52.1
10:00 AM 12/21/22 60.8 75.5 53.8
11:00 AM 12/21/22 61.9 75.4 56.5
12:00 PM 12/21/22 60.9 76.1 52.0
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 706RC (SN:908)

Site Number: LT-4 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: 7695 Evans Street. In the backyard of the residence. Attached to a bush.

Primary Noise Sources: Train noise and traffic noise on Evans Street.

Comments: Approximately 6.6 ft (80 inches) high property wall surrounding the backyard.

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-4 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 53.8 74.6 47.9
2:00 PM 12/20/22 54.0 63.2 47.5
3:00 PM 12/20/22 52.8 63.6 48.5
4:00 PM 12/20/22 56.2 76.5 49.0
5:00 PM 12/20/22 60.6 80.6 55.3
6:00 PM 12/20/22 61.8 76.4 57.6
7:00 PM 12/20/22 64.9 71.0 58.0
8:00 PM 12/20/22 62.8 76.9 53.8
9:00 PM 12/20/22 58.6 64.6 53.5
10:00 PM 12/20/22 58.0 68.0 52.1
11:00 PM 12/20/22 58.9 68.1 49.8
12:00 AM 12/21/22 57.8 69.9 49.9
1:00 AM 12/21/22 58.4 69.5 51.0
2:00 AM 12/21/22 60.7 76.7 50.4
3:00 AM 12/21/22 59.9 69.8 52.7
4:00 AM 12/21/22 64.5 76.8 57.1
5:00 AM 12/21/22 67.2 74.5 61.3
6:00 AM 12/21/22 67.4 77.0 62.4
7:00 AM 12/21/22 64.7 79.8 57.2
8:00 AM 12/21/22 57.4 63.6 53.6
9:00 AM 12/21/22 55.1 74.5 44.6
10:00 AM 12/21/22 52.7 77.2 45.7
11:00 AM 12/21/22 51.7 65.9 47.2
12:00 PM 12/21/22 50.7 66.5 44.5
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 703+ (SN:224)

Site Number: LT-5 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: 7760 Casa Blanca Street. On a utility pole near the backyard.

Primary Noise Sources: Train noise a nd traffic noise on Railroad Avenue.

Comments:

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-5 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 61.3 80.2 54.3
2:00 PM 12/20/22 61.7 79.3 54.1
3:00 PM 12/20/22 65.1 84.1 55.6
4:00 PM 12/20/22 63.6 82.0 56.1
5:00 PM 12/20/22 65.5 85.5 60.4
6:00 PM 12/20/22 74.9 95.5 62.1
7:00 PM 12/20/22 69.6 83.7 62.7
8:00 PM 12/20/22 69.3 84.0 61.5
9:00 PM 12/20/22 71.7 90.9 61.4
10:00 PM 12/20/22 65.5 77.2 60.2
11:00 PM 12/20/22 66.2 81.4 57.7
12:00 AM 12/21/22 63.9 75.6 57.8
1:00 AM 12/21/22 64.6 74.0 58.0
2:00 AM 12/21/22 67.0 76.5 57.2
3:00 AM 12/21/22 66.2 75.9 59.3
4:00 AM 12/21/22 70.1 77.2 63.5
5:00 AM 12/21/22 72.9 80.4 67.2
6:00 AM 12/21/22 72.9 82.2 67.9
7:00 AM 12/21/22 70.2 82.8 65.5
8:00 AM 12/21/22 66.0 79.5 61.2
9:00 AM 12/21/22 66.5 88.7 52.3
10:00 AM 12/21/22 68.2 91.7 55.2
11:00 AM 12/21/22 62.5 76.6 55.4
12:00 PM 12/21/22 62.5 76.6 53.5
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Noise Measurement Survey – 24 HR

Project Number: GBC2201 Test Personnel: Kevin Nguyendo Project Name: Madison Flats E quipment: Spark 705+ (SN:632)

Site Number: LT-6 Date: 12/20/22 T ime: From 1:00 p.m. To 1:00 p.m.

Site Location: 7552 Casa Blanca Street. On a utility pole near the backyard.

Primary Noise Sources: Train noise a nd traffic noise on Railroad Avenue.

Comments:

Photo:

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Long-Term (24-Hour) Noise Level Measurement Results at LT-6 Start Time Date Noise Level (dBA)
Leq L max L min
1:00 PM 12/20/22 60.9 81.3 50.0
2:00 PM 12/20/22 58.8 78.8 49.4
3:00 PM 12/20/22 67.4 89.7 50.6
4:00 PM 12/20/22 63.8 85.4 50.7
5:00 PM 12/20/22 64.3 87.3 56.1
6:00 PM 12/20/22 65.6 84.2 58.7
7:00 PM 12/20/22 66.2 80.1 61.1
8:00 PM 12/20/22 68.0 85.7 56.8
9:00 PM 12/20/22 65.0 83.9 56.8
10:00 PM 12/20/22 63.0 77.6 57.1
11:00 PM 12/20/22 61.9 79.9 55.2
12:00 AM 12/21/22 62.8 72.3 55.2
1:00 AM 12/21/22 61.1 79.2 54.9
2:00 AM 12/21/22 62.1 76.1 55.8
3:00 AM 12/21/22 62.9 84.0 55.9
4:00 AM 12/21/22 65.1 78.4 59.7
5:00 AM 12/21/22 68.5 85.6 62.5
6:00 AM 12/21/22 68.4 84.7 64.1
7:00 AM 12/21/22 70.2 87.9 63.5
8:00 AM 12/21/22 67.2 86.6 58.6
9:00 AM 12/21/22 71.7 93.4 49.6
10:00 AM 12/21/22 64.9 83.4 51.6
11:00 AM 12/21/22 62.3 81.6 54.4
12:00 PM 12/21/22 67.4 87.7 50.5
Source: Compiled by LSA Associates, Inc. (2022).
dBA = A-weighted decibel
Leq = equivalent continuous sound level
Lmax = maximum instantaneous noise level
Lmin = minimum measured sound level

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Vibration Measurement Survey

Project Number: GBC2201 Test Personnel: Corey Knips
Project Name: Madison Flats Equipment: LD 831 SLM

Site Number: V-1 Date: 3/31/2023 Time: From 10:34 a.m. To 1:28 p.m.

Site Location: Approximately 50 feet from the nearest rail line. Across from 7645 Evans Street.

Primary Sources: Trains passing by (V-1a: freight, V-1b: passenger – Metrolink), very light traffic on nearby streets – not a significant source of vibration.

V-1a

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 6.3

8.0 10.0

12.5 16.0

20.0 25.0

31.5 40.0

50.0 63.0

80.0 100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Vibration Level (VdB)
Frequency (Hz)
Freight Train Vibrations
Freight Train Vibration Residential Nighttime Standard
Vibration Measurement List
V-1a Located at V-1, measuring Z-axis for a period of 2 minutes. Freight train passing by.

V-1b Located at V-1, measuring Z-axis for a period of 13 seconds. Metrolink passenger train passing by.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

80.0 6.3

8.0 10.0

12.5 16.0

20.0 25.0

31.5 40.0

50.0 63.0

80.0 100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Vibration Level (VdB)
Frequency (Hz)
Passenger Train Vibrations
Passenger Train Residential Nighttime Standard
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX B

FHWA HIGHWAY TRAFFIC NOISE MODEL PRINTOUTS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Existing
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 385 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 46.58

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Existing
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 460 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 47.35

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Existing
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 12186 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.55

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 60.9 123.0 260.9

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Existing
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 12221 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.56

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 61.0 123.2 261.4

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing With Project-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Existing With Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 537 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 48.03

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing With Project-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Existing With Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 1010 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 50.77

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing With Project-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Existing With Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 12614 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.70

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 62.1 125.7 267.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Existing With Project-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Existing With Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 12343 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.60

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 61.4 124.0 263.2

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year without Project-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Opening (2025) Year without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 408 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 46.83

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year without Project-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Opening (2025) Year without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 488 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 47.61

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year without Project-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Opening (2025) Year without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 12977 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.82

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 63.1 128.1 272.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year without Project-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Opening (2025) Year without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 13014 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.83

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 63.2 128.3 272.5

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year with Project-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Opening (2025) Year with Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 560 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 48.21

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year with Project-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Opening (2025) Year with Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 1038 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 50.89

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year with Project-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Opening (2025) Year with Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 13405 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.96

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 64.3 130.8 277.9

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Opening (2025) Year with Project-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Opening (2025) Year with Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 13136 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 63.87

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 63.6 129.1 274.2

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) without Project-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Cumulative (2045) without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 445 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 47.21

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) without Project-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Cumulative (2045) without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 532 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 47.98

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) without Project-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Cumulative (2045) without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 14115 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 64.19

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 66.3 135.2 287.6

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) without Project-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Cumulative (2045) without Project ______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 14150 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 64.20

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 66.4 135.4 288.1

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) with Project-01

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue West of Winstrom Street NOTES: Madison Flats - Cumulative (2045) with Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 597 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 48.49

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) with Project-02

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Railroad Avenue Between Winstrom Street and Madison Street
NOTES: Madison Flats - Cumulative (2045) with Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 1082 SPEED (MPH): 25 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 6 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 51.07

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 0.0 0.0 0.0

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) with Project-03

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street between Indiana Avenue and Railroad Avenue
NOTES: Madison Flats - Cumulative (2045) with Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 14543 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 64.32

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 67.4 137.8 293.3

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices TABLE Cumulative (2045) with Project-04

FHWA ROADWAY NOISE LEVEL ANALYSIS

RUN DATE: 01/24/2023
ROADWAY SEGMENT: Madison Street Between Railroad Avenue and Evan Street NOTES: Madison Flats - Cumulative (2045) with Project
______________________________________________________________________

* * ASSUMPTIONS * *

AVERAGE DAILY TRAFFIC: 14272 SPEED (MPH): 35 GRADE: .5

TRAFFIC DISTRIBUTION PERCENTAGES

DAY EVENING NIGHT
--- ------- -----
AUTOS

75.51 12.57 9.34

M-TRUCKS

1.56 0.09 0.19

H-TRUCKS

0.64 0.02 0.08

ACTIVE HALF-WIDTH (FT): 24 SITE CHARACTERISTICS: SOFT

______________________________________________________________________

* * CALCULATED NOISE LEVELS * *

CNEL AT 50 FT FROM NEAR TRAVEL LANE CENTERLINE (dB) = 64.23

DISTANCE (FEET) FROM ROADWAY CENTERLINE TO CNEL
70 CNEL 65 CNEL 60 CNEL 55 CNEL
------- ------- ------- -------

0.0 66.7 136.2 289.7

______________________________________________________________________

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX C

HVAC EQUIPMENT SPECIFICATIONS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

16.0 Rheem Classic® Series
Air Conditioners
FORM NO. A11-220 REV. 9
Composite base pan – dampens sound, captures louver
panels, eliminates corrosion and reduces number of fasteners needed
Powder coat paint system – for a long lasting professional finish Scroll compressor – uses 70% fewer moving parts for higher efficiency and increased reliability
Modern cabinet aesthetics – increased curb appeal with visu- ally appealing design
Curved louver panels – provide ultimate coil protection, enhance cabinet strength, and increased cabinet rigidity Optimized fan orifice – optimizes airflow and reduces unit sound
Rust resistant screws – confirmed through 1500-hour salt spray testing
PlusOne™ Expanded Valve Space – 3"-4"-5" service valve space – provides a minimum working area of 27-square
inches for easier access
PlusOne™ Triple Service Access – 15" wide, industry lead- ing corner service access – makes repairs easier and faster.

The two fastener removable corner allows optimal access to internal unit components. Individual louver panels come out once fastener is removed, for faster coil cleaning and easier cabinet reassembly
Diagnostic service window with two-fastener opening – provides access to the high and low pressure.
External gauge port access – allows easy connection of “low-loss” gauge ports
Single-row condenser coil – makes unit lighter and allows thorough coil cleaning to maintain “out of the box”
performance
35% fewer cabinet fasteners and fastener-free base – allow for faster access to internal components and hassle-free panel removal
Service trays – hold fasteners or caps during service calls QR code – provides technical information on demand for faster service calls
Fan motor harness with extra long wires allows unit top to be removed without disconnecting fan wire.

Air Air Conditioners
RA14 Series
“Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps must be matched with appropriate coil components to meet Energy Star.

Ask your Contractor for details or visit www.energystar.gov.” RA14 Series
Efficiencies up to 14 SEER/11.5 EER
Nominal Sizes 11/2 to 5 Ton [5.28 to 17.6 kW]
Cooling Capacities 17.3 to 60.5 kBTU
[5.7 to 17.7 kW]
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Table of Contents
RA14 Series
2 TABLE OF CONTENTS
Standard Feature......................................................................................................3 Available SKUs ........................................................................................................3 Features & Benefits ..............................................................................................4-5 Model Number Identification ................................................................................6-7 General Data/Electrical Data ....................................................................................8 Accessories ............................................................................................................9 Weighted Sound Power............................................................................................9 Unit Dimensions......................................................................................................10 Clearances..............................................................................................................11 Wiring Diagrams ....................................................................................................12 Application Guidelines............................................................................................12 Refrigerant Line Size Information ......................................................................13-16 Performance Data ..................................................................................................17 Guide Specifications ..............................................................................................18 Limited Warranty ....................................................................................................19 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Standard Feature/Available SKUs
RA14 Series
3 STANDARD FEATURES
Feature 18 24 30 36 42 48 60
R-410a Refrigerant √ √ √ √ √ √ √
Maximum SEER 15.5 15 15.5 15.5 15 15 14
Maximum EER 13 13 13 13 13 13 12
Scroll Compressor √ √ √ √ √ √ √
Field Installed Filter Drier √ √ √ √ √ √ √
Front Seating Service Valves √ √ √ √ √ √ √
Internal Pressure Relief Valve √ √ √ √ √ √ √
Internal Thermal Overload √ √ √ √ √ √ √
Long Line capability √ √ √ √ √ √ √
Low Ambient capability with Kit √ √ √ √ √ √ √
3-4-5 Expanded Valve Space √ √ √ √ √ √ √
Composite Basepan √ √ √ √ √ √ √
2 Screw Control Box Access √ √ √ √ √ √ √
15" Access to Internal Components √ √ √ √ √ √ √
Quick release louver panel design √ √ √ √ √ √ √
No fasteners to remove along bottom √ √ √ √ √ √ √
Optimized Venturi Airflow √ √ √ √ √ √ √
Single row condenser coil √ √ √ √ √ √ √
Powder coated paint √ √ √ √ √ √ √
Rust resistant screws √ √ √ √ √ √ √
QR code √ √ √ √ √ √ √
External gauge ports √ √ √ √ √ √ √
Service trays √ √ √ √ √ √ √
√ = Standard
Standard Feature Table
Available Models Description
RA1418AJ1NA Classic® Series 1 1/2 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1418AJ1NB Classic® Series 1 1/2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1424BJ1NA Classic® Series 2 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1424BJ1NB Classic® Series 2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1430AJ1NA Classic® Series 2 1/2 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1430AJ1NB Classic® Series 2 1/2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1436AC1NB Classic® Series 3 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1436AD1NB Classic® Series 3 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-460/3/60 RA1436AJ1NA Classic® Series 3 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1436AJ1NB Classic® Series 3 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1442AD1NB Classic® Series 3 1/2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-460/3/60 RA1442CC1NB Classic® Series 3 1/2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1442CJ1NA Classic® Series 3 1/2 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1442CJ1NB Classic® Series 3 1/2 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1448AC1NB Classic® Series 4 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1448AD1NB Classic® Series 4 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-460/3/60 RA1448AJ1NA Classic® Series 4 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1448AJ1NB Classic® Series 4 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1460AD1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-460/3/60 RA1460BC1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1460BJ1NA Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1460BJ1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1460CC1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 RA1460CD1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-460/3/60 RA1460CJ1NA Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner-208/230/1/60 RA1460CJ1NB Classic® Series 5 ton 14 SEER Single-Stage Air Conditioner w/ High/Low Pressure-208/230/1/60 Available SKUs
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices The RA14 is our 14 SEER air conditioner and is part of the Rheem air conditioner product line that extends from 13 to 20 SEER. This highly featured and reliable air conditioner is designed for years of reliable, efficient operation when matched with Rheem indoor aluminum evaporator coils and furnaces or air handler units with aluminum evaporators.

Our unique composite base ( ) reduces sound emission, elimi- nates rattles, significantly reduces fasteners, eliminates corro- sion and has integrated brass compressor attachment inserts ( ). Furthermore it has incorporated into the design, water management features, means for hand placement ( ) for unit maneuvering, screw trays ( ) and inserts for lifting off unit pad. ( )
Service Valves ( ) are rigidly mounted in the composite base with 3" between suction and discharge valves, 4" clearance below service valves and a minimum of 5" above the service valves, creating industry leading installation ease. The minimum 27 square-inches around the service valves allows ample room to remove service valve schrader prior to brazing, plenty of clear- ance for easy brazing of the suction and discharge lines to ser- vice valve outlets, easy access and hookup of low loss refriger- ant gauges ( ), and access to the service valve caps for opening. For applications with long-line lengths up to 250 feet total equivalent length, up to 200 feet condenser above evapora- tor, or up to 80 feet evaporator above condenser, the long-line instructions in the installation manual should be followed.

Controls are accessed from the corner of the unit by removing only two fasteners from the control access cover, revealing the industry’s largest 15" wide and 14" tall control area ( ). With all this room in the control area the high voltage electrical whip ( ) can easily be inserted through the right size opening in the bot- tom of the control area. Routing it leads directly to contractor lugs for connection. The low voltage control wires ( ) are easily connected to units low voltage wiring. If contactor or capacitor ( ) needs to be replaced there is more than adequate space to make the repair. Furthermore, if high pressure and low pressure model was not purchased but is desired to be installed in the field, the service window ( ) can be removed by removing two screws, to access the high and low side schrader fittings for easy field installation. The entire corner can be removed providing ultimate access to install the high and low pressure switch. ( ) If in the rare event, greater access is needed to internal compo- nents, such as the compressor, the entire corner of the unit can be removed along with the top cover assembly to have unprece- dented access to interior of the unit ( ). Extra wire length is incorporated into each outdoor fan and compressor so top cover and control panel can be positioned next to the unit. With minimal effort the plug can be removed from the compressor and the outdoor fan wires can be removed from the capacitor to allow even more uncluttered access to the interior of the unit ( ).

Outdoor coil heights range from as short as 22" to 32", aiding access to the compressor. Disassembly to this degree and com- plete reassembly only takes a first time service technician less than 10 minutes. ( )
All units utilize strong formed louver panels which provide indus- try leading coil protection. Louver removal for coil cleaning is accomplished by removing one screw and lifting the panel out of the composite base pan. ( ) All RA14 units utilize single row coils ( ) making cleaning easy and complete, restoring the performance of the air conditioner back to out of the box perfor- mance levels year after year.

The outdoor fan motor has sleeve bearings and is inherently protected. The motor is totally enclosed for maximum protection from weather, dust and corrosion. Access to the outdoor fan is made by removing four fasteners from the fan grille. The outdoor fan can be removed from the fan grille by removing 4 fasteners in the rare case outdoor fan motor fails.

Each cabinet has optimized composite ( ) fan orifice assuring efficient and quiet airflow.
1 2
3 4
7 8
9 10
12 13
6 11
5 14
15 15
17 16
19 Air Features & Benefits
RA14 Series
4 Introduction to RA14 Air Conditioner
1 4
64 3 5
2 8 11
910
13 12
19 7 17
16 14
18 15
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Features & Benefits
RA14 Series
5 The entire cabinet has powder post paint ( ) achieving 1000 hour salt spray rating, allowing the cabinet to retain its aesthetics throughout its life.

Scroll compressors with standard internal pressure relief and internal thermal overload are used on all capacities assuring longevity of high efficient and quiet operation for the life of the product.

Each unit is shipped with filter drier for field installation and will trap any moisture or dirt that could contaminate the refrigerant system.

All cabinets have industry leading structural strength due to the composite base pan ( ), interlocking corner post ( ), formed curved louver panels ( ) and drawn top cover ( ) making it the most durable cabinet on the market today.

Each RA14 capacity has undergone rigorous psychometric test- ing to assure performance ratings of capacity, SEER and EER per AHRI Standard 210/240 rating conditions. Also
each unit bears the UL mark and each unit is certified
to UL 1995 safety standards.

Each unit has undergone specific strain and modal testing to assure tubing ( ) is outside the units natural frequency and that the suction and discharge lines connected to the compressor withstand any starting, steady state operation or shut down forces imposed by the compressor.

All units have been sound tested in sound chamber to AHRI 270 rating conditions, and A-weighted Sound Power Level tables produced, assuring units have acceptable noise qualities (see page 9). Each unit has been ran in cooling operation at 95°F and 82°F and sound ratings for the RA14 range from as low as 74 dBA to 77 dBA.

All units have been ship tested to assure units meet stringent “over the road” shipping conditions.

As manufactured all units in the RA14 family have cooling capa- bility to 55 °F . Addition of low ambient control will allow the unit to operate down to 0°F . Factory testing is performed on each unit. All component parts meet well defined specification and continually go through receiving inspections. Each component installed on a unit is scanned, assuring correct component uti- lization for a given unit capacity and voltage. All condenser coils are leak tested with pressurization test to 550#’s and once installed and assembled, each units’ complete refrigerant system is helium leak tested. All units are fully charged from the factory for up to 15 feet of piping. All units are factory run tested.

The RA14 has a 10-year conditional compressor and parts war- ranty (registration required).

Optional Accessories
(Refer to accessory chart for model #)
Compressor Crankcase Heater
Protects against refrigerant migration that can occur during low ambient operation
Compressor Sound Cover
Reinforced vinyl compressor cover containing a 1½ inch thick batt of fiberglass insulation
Open edges are sealed with a one-inch wide hook and loop fastening tape
Compressor Hard Start Kit
Single-phase units are equipped with a PSC compressor motor, this type of motor normally does not need a potential relay and start capacitor
Kit may be required to increase the compressor starting torque, in conditions such as low voltage
Low Ambient Kit
Air conditioners operate satisfactorily in the cooling mode down to 55°F outdoor air temperature without any additional controls
This Kit can be added in the field enabling unit to operate properly down to 0° in the cooling mode
Crankcase heater and freezestat should be installed on com- pressors equipped with a low ambient kit
3"/6"/12"
Gray high density polyethylene feet are available to raise unit off of mounting surface away from moisture
Low Pressure
Can be added in field enabling the unit to shut off compressor on loss of charge
NOTE: Unit can be purchased with high and low pressure
installed at factory. (Refer to SKU list)
High Pressure
Can be added in field enabling unit to shut off compressor if unit loses outdoor fan operation.

NOTE: Unit can be purchased with high and low pressure
installed at factory. (Refer to SKU list)
Decorative Top
Can be installed on fan grille
25 20
2221
2423
20 24
23 22
21 25
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices R A 14 24 A J 1 N A *
Brand Product
Category
SEER Capacity
BTU/HR
Major Series* Voltage Type Controls Minor Series** Option Code
Rheem A - Air Conditioners 14 - 14 SEER 18 - 18,000 [5.28 kW] 24 - 24,000 [7.03 kW]
30 - 30,000 [8.79 kW]
36 - 36,000 [10.55 kW]
42 - 42,000 [12.31 kW]
48 - 48,000 [14.07 kW]
60 - 60,000 [17.58 kW]
A - 1st Design
B - 2nd Design
J - 1ph, 208-230/60
C - 3ph, 208-230/60
D - 3ph, 460/60

1 - Single-stage N - Non-Communicating A - 1st Design
B - 2nd Design
N/A
R P 14 24 A J 1 N A *
Brand Product
Category
SEER Capacity
BTU/HR
Major Series* Voltage Type Controls Minor Series** Option Code
Rheem P - Heat Pump 13 - 13 SEER
14 - 14 SEER
16 - 16 SEER
17 - 17 SEER
20 - 20 SEER
18 - 18,000 [5.28 kW]
24 - 24,000 [7.03 kW]
30 - 30,000 [8.79 kW]
36 - 36,000 [10.55 kW]
42 - 42,000 [12.31 kW]
48 - 48,000 [14.07 kW]
60 - 60,000 [17.58 kW]
A - 1st Design J - 1ph, 208-230/60
C - 3ph, 208-230/60
D - 3ph, 460/60
1 - Single-stage
2 - Two-stage
V - Inverter
P - Piston
C - Communicating
N - Non-Communicating
A - 1st Design N/A
R C F 24 17 S T A M C A *
Brand Product
Category
Type Capacity
BTU/HR
Width Efficiency Metering
Device
Major
Series*
Orientation Casing Minor Series** Option
Code
Rheem C - Evap Coil F - Furn Coil
H - Air-Handler
Coil
24 - 24,000 [7.03 kW]
36 - 36,000 [10.55 kW]
48 - 48,000 [14.07 kW]
60 - 60,000 [17.58 kW]
14 - 14"
17 - 17.5"
21 - 21"
24 - 24.5"
S- Standard Eff.

M- Mid Eff.

H- High Eff.

T-TXV
E-EEV
P-Piston
A - 1st Design M - Multipoise
V - Vertical only/
convertible
H - Ded.

Horizontal only
C - Cased
U - Uncased
A - 1st Design N/A
Air Model Number Identification
RA14 Series
6 Heat Pumps (For Reference)**
Furnace Coils (For Reference)**
Air Conditioners*
*See page 3 for available SKU’s.
**Model number ID’s are for reference only. Available SKU’s are listed on the standard features/available SKU page of model spec sheets. [ ] Designates Metric Conversions
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices R 96 V A 70 2 3 17 M S A
Brand Series Motor Major Rev Input
BTU/HR
Stages Air Flow Cabinet
Width
Configuration Nox Minor Rev
Rheem 90 - 90 AFUE
92 - 92 AFUE
95 - 95 AFUE
96 - 96 AFUE
97 - 97 AFUE
V - Variable speed
T - Constant
Torque
(X-13)

P - PSC
A - 1st Design 040 - 42,000 [12.31 kW]
060 - 56,000 [16.41 kW]
070 - 70,000 [20.51 kW]
085 - 84,000 [24.62 kW]
100 - 98,000 [28.72 kW]
115 - 112,000 [32.82 kW]
1 - Single-stage
2 - Two-stage
M - Modulating
3 - up to 3 ton
5 - 3 1/2 up to 5 ton
14 - 14"
17 - 17.5"
21 - 21"
24 - 24.5"
M - Multi X - Low Nox
S - Standard
A - 1st Design
Air Model Number Identification
RA14 Series
7 R 80 2 V A 075 3 17 M S A
Brand Series Stages Motor Major Rev Input
BTU/HR
Air Flow Cabinet
Width
Configuration Nox Minor Rev
Rheem 80 - 80+ AFUE 1 - Single-stage
2 - Two-stage
V - Variable speed
T - Constant Torque (X-13)
P - PSC premium
S - PSC standard
A - 1st Design 050 - 50,000 [15 kW]
075 - 75,000 [22 kW]
100 - 100,000 [29 kW]
125 - 125,000 [37 kW]
150 - 150,000 [44 kW]
3 - up to 3 ton
4 - 2 1/2 to 4 ton
5 - 3 1/2 up to 5 ton
14 - 14"
17 - 17.5"
21 - 21"
24 - 24.5"
M- M u l t i
D- D o w n
Z - Down &
zero clearance
down flow
X - Low Nox
S - Standard
A - 1st Design
R H 1 T 36 17 S T A N A A 000 *
Brand Product
Category
Stages of
Airflow
Motor Type Capacity
BTU/HR
Width Coil Size Metering
Device
Major
Series*
Controls Voltage Minor
Series**
Factory Heat
Cap
Option
Code
Rheem H - Air
Handler
1 - Single-Stage
2 - Two-Stage
M - Modulating
V - Variable
Speed
T - Constant
Torque

P - PSC
24 - 24,000 [7.03 kW]
36 - 36,000 [10.55 kW]
48 - 48,000 [14.07 kW]
60 - 60,000 [17.58 kW]
14 - 14"
17 - 17.5"
21 - 21"
24 - 24.5"
S - Standard
Eff.

M -Mid Eff.

H - High Eff.

T - TEV

E - EEV
P - Piston
A - 1st Design C -Communicating
N -Non-comm
A - 1ph, 115/60
J - 1ph, 208-240/60
D - 3ph, 480/60
A - 1st Design 00 - no
factory heat
with option
code
*TBD
90%+ AFUE Gas Furnaces (For Reference)**
80% AFUE Gas Furnaces (For Reference)**
Air Handlers (For Reference)**
**Model number ID’s are for reference only. Available SKU’s are listed on the standard features/available SKU page of model spec sheets. [ ] Designates Metric Conversions
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air General Data/Electrical Data
RA14 Series
8 Physical Data

PHYSICAL DATA
Model No. RA1418 RA1424 RA1430 RA1436 RA1442 RA1448 RA1460 Nominal Tonnage 1.5 2.0 2.5 3.0 3.5 4.0 5.0
Valve Connections
Liquid Line O.D. – in. 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Suction Line O.D. – in. 3/4 3/4 3/4 3/4 7/8 7/8 7/8
Refrigerant (R410A) furnished oz.¹ 68 80 87 106 134 129 201 Compressor Type Scroll
Outdoor Coil
Net face area – Outer Coil 9.1 11.1 12.1 14.8 17.3 18.9 32.3 Net face area – Inner Coil — — — — — — —
Tube diameter – in. 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Number of rows 1 1 1 1 1 1 1
Fins per inch 22 22 22 22 22 22 22
Outdoor Fan
Diameter – in. 20 20 20 24 24 26 26
Number of blades 2 2 2 3 3 2 3
Motor hp 1/10 1/8 1/8 1/6 1/5 1/5 1/3
CFM 2225 2295 2605 3105 4105 4264 4775
RPM 1075 1121 1075 850 833 820 795
watts 130 138 142 173 236 236 239
Shipping weight – lbs. 143 148 158 178 207 232 247
Operating weight – lbs. 122 141 151 171 200 221 240
Electrical Data
Line Voltage Data (Volts-Phase-Hz) 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 Maximum overcurrent protection (amps)² 20 25 25 30 35 45 50 Minimum circuit ampacity³ 13 15 17 19 23 27 34
Compressor
Rated load amps 9.7 10.9 12.8 14.1 16.7 19.9 23.7
Locked rotor amps 48 62.9 64 77 109 109 152.5
Condenser Fan Motor
Full load amps 0.6 0.8 0.8 0.8 1.2 1.2 3.5
Locked rotor amps 1.1 1.5 1.4 1.5 2.0 2.3 -
Line Voltage Data (Volts-Phase-Hz) — — — 208/230-3-60 208/230-3-61 208/230-3-62 208/230-3-63 Maximum overcurrent protection (amps)² — — — 20 25 30 35 Minimum circuit ampacity³ — — — 13 16 18 24
Compressor
Rated load amps — — — 9 11.2 13.1 15.9
Locked rotor amps — — — 71 84 83.1 110
Condenser Fan Motor
Full load amps — — — 0.8 1.2 1.2 3.5
Locked rotor amps — — — 1.5 3.0 2.3 -
Line Voltage Data (Volts-Phase-Hz) — — — 480-3-60 480-3-60 RA1442AD 480-3-60 480-3-60
RA1460AD
Maximum overcurrent protection (amps)² — — — 15 — 15 15 ³Minimum circuit ampacity — — — 8 — 9 10
Compressor
Rated load amps — — — 5.6 — 6.1 7.1
Locked rotor amps — — — 38 — 41 52
Condenser Fan Motor
Full load amps — — — 0.5 — 0.6 0.5
Locked rotor amps — — — 1.1 — 1.6 1.4
¹Refrigerant charge sufficient for 15 ft. length of refrigerant lines. For longer line set requirements see the installation instructions for information about set length and additional refrigerant charge required.
²HACR type circuit breaker of fuse.
³Refer to National Electrical Code manual to determine wire, fuse and disconnect size requirements.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Accessories/Weighted Sound Power
RA14 Series
9 Accessories
Model No. RA1418 RA1424 RA1430 RA1436 RA1442 RA1448 RA1460 Compressor crankcase heater* 44-17402-44 44-17402-44 44-17402-44 44-17402-44 44-17402-45 44-17402-45 44-17402-45 Low ambient control RXAD-A08 RXAD-A08 RXAD-A08 RXAD-A08 RXAD-A08 RXAD-A08 RXAD-A08 Compressor sound cover 68-23427-26 68-23427-26 68-23427-26 68-23427-26 68-23427-25 68-23427-25 68-23427-25 Compressor hard start kit SK-A1 SK-A1 SK-A1 SK-A1 SK-A1 SK-A1 SK-A1 Compressor time delay RXMD-B01 RXMD-B01 RXMD-B01 RXMD-B01 RXMD-B01 RXMD-B01 RXMD-B01 Low pressure control RXAC-A07 RXAC-A07 RXAC-A07 RXAC-A07 RXAC-A07 RXAC-A07 RXAC-A07 High pressure control RXAB-A07 RXAB-A07 RXAB-A07 RXAB-A07 RXAB-A07 RXAB-A07 RXAB-A07 Liquid Line Solenoid
(24 VAC, 50/60 Hz)
Solenoid Valve 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD3T3TVLC 200RD3T3TVLC Solenoid Coil 61-AMG24V 61-AMG24V 61-AMG24V 61-AMG24V 61-AMG24V 61-AMG24V 61-AMG24V Liquid Line Solenoid
(120/240 VAC, 50/60 Hz)
Solenoid Valve 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD2T3TVLC 200RD3T3TVLC 200RD3T3TVLC Solenoid Coil 61-AMG120/240V 61-AMG120/240V 61-AMG120/240V 61-AMG120/240V 61-AMG120/240V 61-AMG120/240V 61-AMG120/240V Classic Top Cap w/Label 91-101123-21 91-101123-21 91-101123-21 91-101123-21 91-101123-21 91-101123-21 91-101123-21 *Crankcase Heater recommended with Low Ambient Kit.

Weighted Sound Power Level (dBA)
A-WEIGHTED SOUND POWER LEVEL (dBA)
Unit Size - Voltage, Series Standard
Rating (dBA)
TYPICAL OCTAVE BAND SPECTRUM (dBA without tone adjustment) 125 250 500 1000 2000 4000 8000
RA1418 76.0 51.4 59.6 65.2 65.9 64.3 58.5 53.7
RA1424 75.0 50.0 59.5 63.2 64.4 61.4 56.8 52.6
RA1430 74.0 48.8 57.5 63.5 64 61.9 56.1 51
RA1436 76.0 52.2 61.3 65.4 65.3 62.4 57.3 53.1
RA1442 73.0 51.5 54.7 63.5 63.3 59.4 54.9 48.4
RA1448 76.0 52.3 59.1 66.7 65.7 62.4 59.3 55.9
RA1460 74.6 50.1 55.1 65.6 64.8 63.2 57.4 56.4
NOTE: Tested in accordance with AHRI Standard 270-08 (not listed in AHRI) PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Unit Dimensions
MODEL
NO.

OPERATING SHIPPING
H (Height) L (Length) W (Width) H (Height) L (Length) W (Width) INCHES mm INCHES mm INCHES mm INCHES mm INCHES mm INCHES mm RA1418 25 635 29.75 755 29.75 755 26.75 679 32.38 822 32.38 822 RA1424 25 635 29.75 755 29.75 755 26.75 679 32.38 822 32.38 822 RA1430 27 685 29.75 755 29.75 755 28.75 730 32.38 822 32.38 822 RA1436 27 685 33.75 857 33.75 857 28.75 730 36.38 924 36.38 924 RA1442 35 889 33.75 857 33.75 857 36.75 933 36.38 924 36.38 924 RA1448 31 787 35.75 908 35.75 908 32.75 832 38.38 975 38.38 975 RA1460 51 1295 35.75 908 35.75 908 51.38 1305 38.38 975 38.38 975 ST-A1226-02-00
Air Unit Dimensions
RA14 Series
10 [ ] Designates Metric Conversions
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 6/H11033
(152.4)
24/H11033
(609.6)
Service
12/H11033
(304.8)
6/H11033
(152.4)
24/H11033
(609.6)
Service
24/H11033
(609.6)
24/H11033 recommended
12/H11033 minimum
12/H11033
(304.8)
12/H11033
(304.8)
6/H11033
(152.4)
24/H11033
(609.6)
Service
24/H11033
(609.6)
Service
24/H11033
(609.6)
Service
18/H11033
(457.2)
WALL
WALL
WALL
WALL
NOTE: NUMBERS IN () = mm

CLEARANCES
IMPORTANT: When installing multiple units in an alcove, roof well or partially enclosed area, ensure there is adequate ventillation to prevent re-circulation of discharge air.

ST-A1225-01-00
24/H11033
(609.6)
24/H11033 recommended
12/H11033 minimum
Air Clearances
RA14 Series
11 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices FIGURE 2

CONTROL WIRING FOR GAS OR OIL FURNACE

FOR TYPICAL ELECTRIC HEATFOR TYPICAL GAS OR OIL HEAT
C
Y
G
W
R
W/BL
R
W/BK
G/BK
YL
BR
PU
YG W R

TYPICAL THERMOSTAT

SUBBASE

TYPICAL GAS OR

OIL FURNACE

TYPICAL CONDENSING
UNIT
BR – BROWN WIRE
YL – YELLOW WIRE
X – WIRE CONNECTION
BR – BROWN WIRE
R – RED WIRE
YL – YELLOW WIRE
W/BK – WHITE WIRE WITH BLACK STRIPE
G/BK – GREEN WIRE WITH BLACK STRIPE
PU – PURPLE WIRE (NOT USED)
X – WIRE CONNECTION
*IF MAXIMUM OUTLET TEMPERATURE RISE IS DESIRED, IT IS RECOMMENDED THAT W1 (W/BK) AND W2 (W/BL) BE JUMPERED TOGETHER.

YL
BR

TYPICAL CONDENSING
UNIT
YL
BR
X
X
X
X X
X
X
X
X
YG W R

TYPICAL THERMOSTAT

SUBBASE
X

TYPICAL ELECTRIC HEAT

LOW VOLTAGE JUNCTION BOX
*
Application Guidelines

1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01 -in. wc.

2. Minimum outdoor operation air temperature for cooling mode without low-ambient operation accessory is 55°F (12.8°C).

3. Maximum outdoor operating air temperature is 125°F (51.7°C).

4. For reliable operation, unit should be level in all horizontal planes.

5. Use only copper wire for electric connections at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.

6. Do not apply capillary tube indoor coils to these units.

7. Factory – supplied filter drier must be installed.

Air Wiring Diagram/Application Guidelines
RA14 Series
12 Control Wiring
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Refrigerant Line Size Information
RA14 Series
13 13 - 16 SEER Single-Stage Air-Conditioners
Unit Size
Allowable
Liquid Line
Size
Allowable
Suction Line
Size
Apply Long Line Guidelines if
Linear Line Length Exceeds
Those Shown Below (Feet)
Equivalent Length (Feet)
< 25 26-50 51-75 76-100 101-125 126-150 151-175 176-200 201-225 226-250 (-)A13 (-)A14
A/B
(-)A14
W (-)A16 Maximum Vertical Rise (Outdoor Unit Below Indoor Unit) * / Capacity Multiplier

1.5 Ton
**SEE
NOTE 3
1/4" 5/8" N/R N/R N/R N/R 25 / 1.00 50 / 0.99 62 / 0.98 43 / 0.98 24 / 0.97 5 / 0.97 N/R N/R N/R N/R 5/16" 5/8" N/R 223 198 188 25 / 1.00 50 / 0.99 75 / 0.98 98 / 0.98 93 / 0.97 88 / 0.97 83 / 0.96 78 / 0.96 73 / 0.95 68 / 0.94 3/8" 5/8" 178 148 132 125 25 / 1.00 50 / 0.99 75 / 0.98 100 / 0.98 100 / 0.97 100 / 0.97 100 / 0.96 100 / 0.96 100 / 0.95 100 / 0.94 1/4" 3/4"** N/R N/R N/R N/R 25 / 1.00 50 / 1.00 62 / 0.99 43 / 0.99 24 / 0.99 5 / 0.99 N/R N/R N/R N/R 5/16" 3/4"** N/R 223 198 188 25 / 1.00 50 / 1.00 75 / 0.99 98 / 0.99 93 / 0.99 88 / 0.99 83 / 0.99 78 / 0.98 73 / 0.98 68 / 0.98 3/8" 3/4"** 178 148 132 125 25 / 1.00 50 / 1.00 75 / 1.00 100 / 0.99 100 / 0.99 100 / 0.99 100 / 0.99 100 / 0.98 100 / 0.98 100 / 0.98 2 Ton
1/4" 5/8" N/R N/R N/R N/R 25 / 0.99 50 / 0.98 21 / 0.97 N/R N/R N/R N/R N/R N/R N/R 5/16" 5/8" 243 193 175 175 25 / 0.99 50 / 0.98 75 / 0.97 87 / 0.96 77 / 0.95 69 / 0.94 61 / 0.93 53 / 0.92 45 / 0.91 37 / 0.90 3/8" 5/8" 162 128 117 117 25 / 0.99 50 / 0.98 75 / 0.97 100 / 0.96 100 / 0.95 100 / 0.94 98 / 0.93 95 / 0.92 92 / 0.91 89 / 0.90 1/4" 3/4" N/R N/R N/R N/R 25 /1.00 50 / 1.00 21 / 0.99 N/R N/R N/R N/R N/R N/R N/R 5/16" 3/4" 243 193 175 175 25 /1.00 50 / 1.00 75 / 0.99 87 / 0.99 77 / 0.98 69 / 0.98 61 / 0.98 53 / 0.97 45 / 0.97 37 / 0.96 3/8" 3/4" 162 128 117 117 25 / 1.00 50 / 1.00 75 / 0.99 100 / 0.99 100 / 0.98 100 / 0.98 98 / 0.98 95 / 0.97 93 / 0.97 90 / 0.96

2.5 Ton
5/16" 5/8" N/R N/R 110 110 25 / 0.99 50 / 0.98 75 / 0.96 70 / 0.94 59 / 0.93 48 / 0.91 36 / 0.90 N/R N/R N/R 3/8" 5/8" 142 117 73 73 25 / 0.99 50 / 0.98 75 / 0.96 100 / 0.94 98 / 0.93 94 / 0.91 90 / 0.90 N/R N/R N/R 5/16" 3/4" 213 175 110 110 25 / 1.00 50 / 0.99 75 / 0.99 70 / 0.98 59 / 0.98 48 / 0.97 36 / 0.96 25 / 0.96 13 / 0.95 N/R 3/8" 3/4" 142 117 73 73 25 / 1.00 50 / 0.99 75 / 0.99 100 / 0.98 98 / 0.98 94 / 0.97 90 / 0.96 86 / 0.96 82 / 0.95 78 / 0.95 3 Ton
5/16" 5/8" N/R N/R N/R N/R 25 / 0.99 50 / 0.97 66 / 0.94 49 / 0.92 32 / 0.90 N/R N/R N/R N/R N/R 3/8" 5/8" 108 85 90 82 25 / 0.99 50 / 0.97 75 / 0.94 95 / 0.92 89 / 0.90 N/R N/R N/R N/R N/R 5/16" 3/4" N/R 128 135 123 25 / 1.00 50 / 0.99 66 / 0.98 49 / 0.98 32 / 0.97 15 / 0.96 N/R N/R N/R N/R 3/8" 3/4" 108 85 90 82 25 / 1.00 50 / 0.99 75 / 0.98 95 / 0.98 89 / 0.97 84 / 0.96 78 / 0.95 72 / 0.94 67 / 0.93 61 / 0.93 1/2" 3/4" 54 43 45 41 25 / 1.00 50 / 0.99 75 / 0.98 100 / 0.98 100 / 0.97 100 / 0.96 100 / 0.95 100 / 0.94 100 / 0.93 100 / 0.93 5/16" 7/8" N/R 128 135 123 25 / 1.00 50 / 1.00 66 / 1.00 49 / 0.99 32 / 0.99 15 / 0.99 N/R N/R N/R N/R 3/8" 7/8" 108 85 90 82 25 / 1.00 50 / 1.00 75 / 1.00 95 / 0.99 89 / 0.99 84 / 0.99 78 / 0.98 72 / 0.98 67 / 0.98 61 / 0.97 1/2" 7/8" 54 43 45 41 25 / 1.00 50 / 1.00 75 / 1.00 100 / 0.99 100 / 0.99 100 / 0.99 100 / 0.98 100 / 0.98 100 / 0.98 100 / 0.97

3.5 Ton
3/8" 3/4" 150 102 75 75 25 / 0.99 50 / 0.98 75 / 0.97 88 / 0.96 80 / 0.95 72 / 0.94 65 / 0.92 57 / 0.91 49 / 0.90 N/R 1/2" 3/4" 75 51 38 38 25 / 0.99 50 / 0.98 75 / 0.97 100 / 0.96 100 / 0.95 100 / 0.94 100 / 0.92 100 / 0.91 100 / 0.90 N/R 3/8" 7/8" 150 102 75 75 25 / 1.00 50 / 1.00 75 / 0.99 88 / 0.99 80 / 0.99 72 / 0.98 65 / 0.97 57 / 0.97 49 / 0.96 42 / 0.96 1/2" 7/8" 75 51 38 38 25 / 1.00 50 / 1.00 75 / 0.99 100 / 0.99 100 / 0.99 100 / 0.98 100 / 0.97 100 / 0.97 100 / 0.96 100 / 0.96 NOTES:

1. Do not exceed 200 ft linear line length.

2. *Do not exceed 100 ft vertical separation if outdoor unit is above indoor unit.

3. **3/4" suction line should only be used for 1.5 ton systems if outdoor unit is below or at same level as indoor to assure proper oil return.

4. Always use the smallest liquid line allowable to minimize refrigerant charge.

5. Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.

6. Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop.

NOTE: Values based on 105°F liquid temperature and 45°F evaporator temperature in cooling mode depending on size Refrigerant Line Size Information
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Refrigerant Line Size Information
RA14 Series
14 13 - 16 SEER Single-Stage Air-Conditioners
Unit Size
Allowable
Liquid Line
Size
Allowable
Suction Line
Size
Apply Long Line Guidelines if
Linear Line Length Exceeds
Those Shown Below (Feet)
Equivalent Length (Feet)
< 25 26-50 51-75 76-100 101-125 126-150 151-175 176-200 201-225 226-250 (-)A13 (-)A14
A/B
(-)A14
W (-)A16 Maximum Vertical Rise (Outdoor Unit Below Indoor Unit) * / Capacity Multiplier 4 Ton
3/8" 3/4" 148 110 N/R 35 25 / 0.99 50 / 0.98 75 / 0.96 77 / 0.95 67 / 0.93 57 / 0.92 46 / 0.91 N/R N/R N/R 1/2" 3/4" 74 55 N/R 18 25 / 0.99 50 / 0.98 75 / 0.96 100 / 0.95 100 / 0.93 100 / 0.92 100 / 0.91 N/R N/R N/R 3/8" 7/8" 148 110 N/R 35 25 / 1.00 50 / 0.99 75 / 0.99 77 / 0.98 67 / 0.97 57 / 0.97 46 / 0.96 36 / 0.96 26 / 0.95 15 / 0.95 1/2" 7/8" 74 55 N/R 18 25 / 1.00 50 / 0.99 75 / 0.99 100 / 0.98 100 / 0.97 100 / 0.97 100 / 0.96 100 / 0.96 99 / 0.95 97 / 0.95 5 Ton
3/8" 3/4" 78 0 N/R 0 25 / 0.99 50 / 0.97 75 / 0.94 61 / 0.92 46 / 0.90 N/R N/R N/R N/R N/R 1/2" 3/4" 39 0 N/R 0 25 / 0.99 50 / 0.97 75 / 0.94 100 / 0.92 100 / 0.90 N/R N/R N/R N/R N/R 3/8" 7/8" 78 0 N/R 0 25 / 1.00 50 / 0.99 75 / 0.98 61 / 0.97 46 / 0.96 32 / 0.95 18 / 0.94 N/R N/R N/R 1/2" 7/8" 39 0 N/R 0 25 / 1.00 50 / 0.99 75 / 0.98 100 / 0.97 100 /0.96 100 / 0.95 97 / 0.94 95 / 0.94 92 / 0.93 89 / 0.92 3/8" 1-1/8" 78 0 N/R 0 25 / 1.01 50 / 1.01 75 / 1.00 61 / 1.00 46 / 0.99 32 / 0.99 18 / 0.99 N/R N/R N/R 1/2" 1-1/8" 39 0 N/R 0 25 / 1.01 50 / 1.01 75 / 1.00 100 /1.00 100 / 0.99 100 / 0.99 97 / 0.99 95 / 0.99 92 / 0.99 89 / 0.98 Refrigerant Line Size Information (con’t.)
NOTES:

1. Do not exceed 200 ft linear line length.

2. *Do not exceed 100 ft vertical separation if outdoor unit is above indoor unit.

3. **3/4" suction line should only be used for 1.5 ton systems if outdoor unit is below or at same level as indoor to assure proper oil return.

4. Always use the smallest liquid line allowable to minimize refrigerant charge.

5. Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.

6. Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop.

NOTE: Values based on 105°F liquid temperature and 45°F evaporator temperature in cooling mode depending on size PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 15 13 - 16 SEER Single-Stage Air-Conditioners
Unit Size
Allowable
Liquid Line
Size
mm [in.]
Allowable
Suction Line
Size
mm [in.]
Apply Long Line Guidelines if
Linear Line Length Exceeds
Those Shown Below (Feet)
Equivalent Length (Meters)
< 8 8-15 16-23 24-30 31-38 39-46 47-53 54-61 62-69 70-76 (-)A13 (-)A14
A/B
(-)A14
W (-)A16 Maximum Vertical Rise (Outdoor Unit Below Indoor Unit) * / Capacity Multiplier

5.3 KW
[1.5 Ton]
**SEE
NOTE 3

6.35 [1/4] 15.88 [5/8] N/R N/R N/R N/R 8 / 1.00 15 / 0.99 19 / 0.98 13 / 0.98 7 / 0.97 2 / 0.97 N/R N/R N/R N/R

7.94 [5/16] 15.88 [5/8] N/R 68 60 57 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 28 / 0.97 27 / 0.97 25 / 0.96 24 / 0.96 22 / 0.95 21 / 0.94

9.53 [3/8] 15.88 [5/8] 54 45 40 38 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 30 / 0.97 30 / 0.97 30 / 0.96 30 / 0.96 30 / 0.95 30 / 0.94

6.35 [1/4] **19.05 [3/4]** N/R N/R N/R N/R 8 / 1.00 15 / 1.00 19 / 0.99 13 / 0.99 7 / 0.99 2 / 0.99 N/R N/R N/R N/R

7.94 [5/16] **19.05 [3/4]** N/R 68 60 57 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 28 / 0.99 27 / 0.99 25 / 0.99 24 / 0.98 22 / 0.98 21 / 0.98

9.53 [3/8] **19.05 [3/4]** 54 45 40 38 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98

7.0 KW
[2 Ton]

6.35 [1/4] 15.88 [5/8] N/R N/R N/R N/R 8 / 0.99 15 / 0.98 6 / 0.97 N/R N/R N/R N/R N/R N/R N/R

7.94 [5/16] 15.88 [5/8] 74 59 53 53 8 / 0.99 15 / 0.98 23 / 0.97 27 / 0.96 23 / 0.95 21 / 0.94 19 / 0.93 16 / 0.92 14 / 0.91 11 / 0.90

9.53 [3/8] 15.88 [5/8] 49 39 36 36 8 / 0.99 15 / 0.98 23 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.93 29 / 0.92 28 / 0.91 27 / 0.90

6.35 [1/4] 19.05 [3/4] N/R N/R N/R N/R 8 / 1.00 15 / 1.00 6 / 0.99 N/R N/R N/R N/R N/R N/R N/R

7.94 [5/16] 19.05 [3/4] 74 59 53 53 8 / 1.00 15 / 1.00 23 / 0.99 27 / 0.99 23 / 0.98 21 / 0.98 19 / 0.98 16 / 0.97 14 / 0.97 11 / 0.96

9.53 [3/8] 19.05 [3/4] 49 39 36 36 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98 29 / 0.97 28 / 0.97 27 / 0.96

8.8 KW
[2.5 Ton]

7.94 [5/16] 15.88 [5/8] N/R N/R 34 34 8 / 0.99 15 / 0.98 23 / 0.96 21 / 0.94 18 / 0.93 15 / 0.91 11 / 0.90 N/R N/R N/R

9.53 [3/8] 15.88 [5/8] 43 36 22 22 8 / 0.99 15 / 0.98 23 / 0.96 30 / 0.94 30 / 0.93 29 / 0.91 27 / 0.90 N/R N/R N/R

7.94 [5/16] 19.05 [3/4] 65 53 34 34 8 / 1.00 15 / 0.99 23 / 0.99 21 / 0.98 18 / 0.98 15 / 0.97 11 / 0.96 8 / 0.96 4 / 0.95 N/R

9.53 [3/8] 19.05 [3/4] 43 36 22 22 8 / 1.00 15 / 0.99 23 / 0.99 30 / 0.98 30 / 0.98 29 / 0.97 27 / 0.96 26 / 0.96 25 / 0.95 24 / 0.95

10.6 KW
[3 Ton]

7.94 [5/16] 15.88 [5/8] N/R N/R N/R N/R 8 / 0.99 15 / 0.97 20 / 0.94 15 / 0.92 10 / 0.90 N/R N/R N/R N/R N/R

9.53 [3/8] 15.88 [5/8] 33 26 27 25 8 / 0.99 15 / 0.97 23 / 0.94 29 / 0.92 27 / 0.90 N/R N/R N/R N/R N/R

7.94 [5/16] 19.05 [3/4] N/R 39 41 37 8 / 1.00 15 / 0.99 20 / 0.98 15 / 0.98 10 / 0.97 5 / 0.96 N/R N/R N/R N/R

9.53 [3/8] 19.05 [3/4] 33 26 27 25 8 / 1.00 15 / 0.99 23 / 0.98 29 / 0.98 27 / 0.97 26 / 0.96 24 / 0.95 22 / 0.94 20 / 0.93 19 / 0.93

12.70 [1/2] 19.05 [3/4] 17 13 14 12 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 30 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.93 30 / 0.93

7.94 [5/16] 22.23 [7/8] N/R 39 41 37 8 / 1.00 15 / 1.00 20 / 1.00 15 / 0.99 10 / 0.99 5 / 0.99 N/R N/R N/R N/R

9.53 [3/8] 22.23 [7/8] 33 26 27 25 8 / 1.00 15 / 1.00 23 / 1.00 29 / 0.99 27 / 0.99 26 / 0.99 24 / 0.98 22 / 0.98 20 / 0.98 19 / 0.97

12.70 [1/2] 22.23 [7/8] 17 13 14 12 8 / 1.00 15 / 1.00 23 / 1.00 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98 30 / 0.97

12.3 KW
[3.5 Ton]

9.53 [3/8] 19.05 [3/4] 46 31 23 23 8 / 0.99 15 / 0.98 23 / 0.97 27 / 0.96 24 / 0.95 22 / 0.94 20 / 0.92 17 / 0.91 15 / 0.90 N/R

12.70 [1/2] 19.05 [3/4] 23 15 11 11 8 / 0.99 15 / 0.98 23 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.92 30 / 0.91 30 / 0.90 N/R

9.53 [3/8] 22.23 [7/8] 46 31 23 23 8 / 1.00 15 / 1.00 23 / 0.99 27 / 0.99 24 / 0.99 22 / 0.98 20 / 0.97 17 / 0.97 15 / 0.96 13 / 0.96

12.70 [1/2] 22.23 [7/8] 23 15 11 11 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.97 30 / 0.97 30 / 0.96 30 / 0.96 NOTES:

1. Do not exceed 61 meters linear line length.

2. *Do not exceed 30 meters vertical separation if outdoor unit is above indoor unit.

3. **19.05 mm [3/4 in.] suction line should only be used for 1.5 ton systems if outdoor unit is below or at same level as indoor to assure proper oil return.

4. Always use the smallest liquid line allowable to minimize refrigerant charge.

5. Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.

6. Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop. [ ] Designates Metric Conversions
Air Refrigerant Line Size Information
RA14 Series
Refrigerant Line Size Information (con’t.)
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Refrigerant Line Size Information
RA14 Series
16 Refrigerant Line Size Information (con’t.)
NOTES:

1. Do not exceed 61 meters linear line length.

2. *Do not exceed 30 meters vertical separation if outdoor unit is above indoor unit.

3. **19.05 mm [3/4 in.] suction line should only be used for 1.5 ton systems if outdoor unit is below or at same level as indoor to assure proper oil return.

4. Always use the smallest liquid line allowable to minimize refrigerant charge.

5. Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.

6. Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop. [ ] Designates Metric Conversions
13 - 16 SEER Single-Stage Air-Conditioners
Unit Size
Allowable
Liquid Line
Size
Allowable
Suction Line
Size
Apply Long Line Guidelines if
Linear Line Length Exceeds
Those Shown Below (Feet)
Equivalent Length (Meters)
< 8 8-15 16-23 24-30 31-38 39-46 47-53 54-61 62-69 70-76 (-)A13 (-)A14
A/B
(-)A14
W (-)A16 Maximum Vertical Rise (Outdoor Unit Below Indoor Unit) * / Capacity Multiplier

14.1 KW
[4 Ton]

9.53 [3/8] 19.05 [3/4] 45 34 N/R 11 8 / 0.99 15 / 0.98 23 / 0.96 24 / 0.95 20 / 0.93 17 / 0.92 14 / 0.91 NR NR NR

12.7 [1/2] 19.05 [3/4] 23 17 N/R 5 8 / 0.99 15 / 0.98 23 / 0.96 30 / 0.95 30 / 0.93 30 / 0.92 30 / 0.91 NR NR NR

9.53 [3/8] 22.23 [7/8] 45 34 N/R 11 8 / 1.00 15 / 0.99 23 / 0.99 24 / 0.98 20 / 0.97 17 / 0.97 14 / 0.96 11 / 0.96 8 / 0.95 5 / 0.95

12.7 [1/2] 22.23 [7/8] 23 17 N/R 5 8 / 1.00 15 / 0.99 23 / 0.99 30 / 0.98 30 / 0.97 30 / 0.97 30 / 0.96 30 / 0.96 30 / 0.95 30 / 0.95

17.6 KW
[5 Ton]

9.53 [3/8] 19.05 [3/4] 24 17 N/R 0 8 / 0.99 15 / 0.97 23 / 0.94 19 / 0.92 14 / 0.90 NR NR NR NR NR

12.7 [1/2] 19.05 [3/4] 12 8 N/R 0 8 / 0.99 15 / 0.97 23 / 0.94 30 / 0.92 30 / 0.90 NR NR NR NR NR

9.53 [3/8] 22.23 [7/8] 24 17 N/R 0 8 / 1.00 15 / 0.99 23 / 0.98 19 / 0.97 14 / 0.96 10 / 0.95 5 / 0.94 NR NR NR

12.7 [1/2] 22.23 [7/8] 12 8 N/R 0 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.97 30 /0.96 30 / 0.95 30 / 0.94 29 / 0.94 28 / 0.93 27 / 0.92

9.53 [3/8] 28.58 [1-1/8] 24 17 N/R 0 8 / 1.01 15 / 1.01 23 / 1.00 19 / 1.00 14 / 0.99 10 / 0.99 5 / 0.99 NR NR NR

12.7 [1/2] 28.58 [1-1/8] 12 8 N/R 0 8 / 1.01 15 / 1.01 23 / 1.00 30 / 1.00 30 / 0.99 30 / 0.99 30 / 0.99 29 / 0.99 28 / 0.99 27 / 0.98 PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 17 Air Performance Data
RA14 Series
Tested Combination
Outdoor
Unit Indoor Coil Total Capacity
BTU/H [kW]
Net Sensible
BTU/H [kW]
Net Latent
BTU/H [kW] SEER EER Indoor CFM
[L/s]
RA1418AJ1 RCF2417STA+RXMD-C04 17800 [5.2] 12100 [3.5] 5700 [1.7] 14.00 11.50 600 [283.2] RA1424BJ1 RCF2417STA+RXMD-C04 23200 [6.8] 17500 [5.2] 5700 [1.7] 14.00 11.50 800 [376.0] RA1430AJ1 RCF3617STA+RXMD-C04 28800 [8.4] 19500 [5.7] 9300 [2.7] 14.00 11.50 1000 [471.9] RA1436AJ1 RCF3617STA+RXMD-C04 34200 [10.0] 23200 [6.8] 11000 [3.2] 14.00 11.50 1050 [495.5] RA1436AC1 RCF3617STA+RXMD-C04 34200 [10.0] 23200 [6.8] 11000 [3.2] 14.00 11.50 1050 [495.5] RA1436AD1 RCF3617STA+RXMD-C04 34200 [10.0] 23200 [6.8] 11000 [3.2] 14.00 11.50 1050 [495.5] RA1442CJ1 RCF4821STA+RXMD-C04 39500 [11.6] 28900 [8.5] 10600 [3.1] 14.00 11.50 1350 [634.5] RA1442CC1 RCF4821STA+RXMD-C04 39500 [11.6] 28900 [8.5] 10600 [3.1] 14.00 11.50 1350 [634.5] RA1448AJ1 RCF4821STA+RXMD-C04 46000 [13.5] 31200 [9.1] 14800 [4.3] 14.00 11.70 1450 [684.3] RA1448AC1 RCF4821STA+RXMD-C04 46000 [13.5] 31200 [9.1] 14800 [4.3] 14.00 11.70 1450 [684.3] RA1448AD1 RCF4821STA+RXMD-C04 46000 [13.5] 31200 [9.1] 14800 [4.3] 14.00 11.70 1450 [684.3] RA1460BJ1 RCF6024STA+RXMD-C04 55500 [16.3] 38100 [11.2] 17400 [5.1] 14.00 11.70 1525 [716.8] RA1460AD1 RCF6024STA+RXMD-C04 55500 [16.3] 38100 [11.2] 17400 [5.1] 14.00 11.70 1525 [716.8] RA1460BC1 RCF6024STA+RXMD-C04 55500 [16.3] 38100 [11.2] 17400 [5.1] 14.00 11.70 1525 [716.8] Note: Additional ratings and system match ups can be accessed on MyRheem.com at: https://my.rheem.com/static/private/ahriresidential.html Additional ratings and system match ups and downloadable ratings certificates can be accessed from the AHRI website: www.ahridirectory.org [ ] Designates Metric Conversions
Performance Data @ AHRI Standard Conditions – Cooling
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Air Guide Specifications
RA14 Series
18 GUIDE SPECIFICATIONS
General
System Description
Outdoor-mounted, air-cooled, split-system air conditioner com- posite base pan unit suitable for ground or rooftop installation.

Unit consists of a hermetic compressor, an air-cooled coil, pro - peller-type condenser fan, suction and legend line service valve, and a control box. Unit will discharge supply air upward as shown on contract drawings. Unit will be used in a refrigeration circuit to match up to a coil unit.

Quality Assurance
— Unit will be rated in accordance with the latest edition of AHRI Standard 210.
— Unit will be certified for capacity and efficiency, and listed in the latest AHRI directory.
— Unit construction will comply with latest edition of ANSI/ ASHRAE and with NEC.
— Unit will be constructed in accordance with UL standards and will carry the UL label of approval. Unit will have c-UL-us approval.
— Unit cabinet will be capable of withstanding ASTM B117 1000- hr salt spray test.
— Air-cooled condenser coils will be leak tested at 150 psig and pressure tested at 550 psig.
— Unit constructed in ISO9001 approved facility.

Delivery, Storage, and Handling
— Unit will be shipped as single package only and is stored and handled per unit manufacturer’s recommendations.

Warranty (for inclusion by specifying engineer) — U.S. and Canada only.

Products
Equipment
Factory assembled, single piece, air-cooled air conditioner unit.

Contained within the unit enclosure is all factory wiring, piping, controls, compressor, refrigerant charge R-410A, and special fea- tures required prior to field start-up.

Unit Cabinet
— Unit cabinet will be constructed of galvanized steel, bonder - ized, and coated with a powder coat paint.
— All units constructed with louver coil protection and corner post.

Louver can be removed by removing one fastener per louver panel.

AIR-COOLED, SPLIT-SYSTEM AIR CONDITIONER
RA14
1-1/2 TO 5 NOMINAL TONS
Fans
— Condenser fan will be direct-drive propeller type, discharging air upward.
— Condenser fan motors will be totally enclosed, 1-phase type with class B insulation and permanently lubricated bearings.

Shafts will be corrosion resistant.
— Fan blades will be statically and dynamically balanced. — Condenser fan openings will be equipped with coated steel wire safety guards.

Compressor
— Compressor will be hermetically sealed.
— Compressor will be mounted on rubber vibration isolators.

Condenser Coil
— Condenser coil will be air cooled.
— Coil will be constructed of aluminum fins mechanically bonded to copper tubes.

Refrigeration Components
— Refrigeration circuit components will include liquid-line shutoff valve with sweat connections, vapor-line shutoff valve with sweat connections, system charge of R-410A refrigerant, and compressor oil.
— Unit will be equipped with filter drier for R-410A refrigerant for field installation.

Operating Characteristics
— The capacity of the unit will meet or exceed _____ Btuh at a suction temperature of _____ °F/°C. The power consumption at full load will not exceed _____ kW.
— Combination of the unit and the evaporator or fan coil unit will have a total net cooling capacity of _____ Btuh or greater at conditions of _____ CFM entering air temperature at the evap- orator at _____ °F/°C wet bulb and _____ °F/°C dry bulb, and air entering the unit at _____ °F/°C.
— The system will have a SEER of _____ Btuh/watt or greater at DOE conditions.

Electrical Requirements
— Nominal unit electrical characteristics will be _____ v, single phase, 60 hz. The unit will be capable of satisfactory operation within voltage limits of _____ v to _____ v.
— Nominal unit electrical characteristics will be _____ v, three phase, 60 hz. The unit will be capable of satisfactory operation within voltage limits of _____ v to _____ v.
— Unit electrical power will be single point connection. — Control circuit will be 24v.

Special Features
— Refer to section of this literature identifying accessories and descriptions for specific features and available enhancements.

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices 19 Air Limited Warranty
RA14 Series
GENERAL TERMS OF LIMITED WARRANTY*
Rheem will furnish a replacement for any part of this product which fails in normal use and service within the applicable period stated, in accordance with the terms of the limited warranty.
*For complete details of the Limited and Conditional Warranties, including applicable terms and conditions, contact your local contractor or the Manufacturer for a copy of the product warranty certificate.

Conditional Parts
(Registration Required) ...............................Ten (10) Years PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices The new degree of comfort.™
Rheem Heating, Cooling & Water Heating 5600 Old Greenwood Road Fort Smith, Arkansas 72908 www.rheem.com
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.

PRINTED IN U.S.A. 6/19 QG FORM NO. A11-220 REV. 9
Rheem Canada Ltd./Ltée 125 Edgeware Road, Unit 1
Brampton, Ontario L6Y 0P5
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX D

HVAC NOISE CALCULATIONS

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Land Use Direction No. No. of Units
Reference
Noise Level
(dBA Leq)
Total
Reference
Noise Level
(dBA Leq)
Reference
Distance (ft) Distance (ft)
Distance
Attenuation
Shielding
(dBA)
Noise Level
(dBA Leq)
Composite
Noise Level
(dBA Leq)
1 11 44.4 54.8 50 165 10.4 5 39.4
2 3 44.4 49.2 50 136 8.7 5 35.5
3 3 44.4 49.2 50 99 5.9 5 38.3
4 4 44.4 50.4 50 88 4.9 5 40.5
5 6 44.4 52.2 50 121 7.7 5 39.5
6 7 44.4 52.9 50 140 8.9 5 39.0
7 3 44.4 49.2 50 208 12.4 5 31.8
8 10 44.4 54.4 50 259 14.3 5 35.1
9 2 44.4 47.4 50 388 17.8 5 24.6
10 8 44.4 53.4 50 433 18.8 5 29.6
11 6 44.4 52.2 50 510 20.2 5 27.0
12 5 44.4 51.4 50 573 21.2 5 25.2
13 4 44.4 50.4 50 600 21.6 5 23.8
14 6 44.4 52.2 50 647 22.2 5 25.0
15 11 44.4 54.8 50 738 23.4 5 26.4
16 11 44.4 54.8 50 996 26.0 5 23.8
17 6 44.4 52.2 50 1071 26.6 5 20.6
18 4 44.4 50.4 50 1139 27.2 5 18.2
19 5 44.4 51.4 50 1166 27.4 5 19.0
20 6 44.4 52.2 50 1209 27.7 5 19.5
21 8 44.4 53.4 50 1300 28.3 5 20.1
1 11 44.4 54.8 50 1,613 30.2 5 19.6
2 3 44.4 49.2 50 1,543 29.8 5 14.4
3 3 44.4 49.2 50 1,497 29.5 5 14.7
4 4 44.4 50.4 50 1,474 29.4 5 16.0
5 6 44.4 52.2 50 1,405 29.0 5 18.2
6 7 44.4 52.9 50 1,358 28.7 5 19.2
7 3 44.4 49.2 50 1,264 28.1 5 16.1
8 10 44.4 54.4 50 1,219 27.7 5 21.7
9 2 44.4 47.4 50 1,085 26.7 5 15.7
10 8 44.4 53.4 50 1,037 26.3 5 22.1
11 6 44.4 52.2 50 943 25.5 5 21.7
12 5 44.4 51.4 50 896 25.1 5 21.3
13 4 44.4 50.4 50 871 24.8 5 20.6
14 6 44.4 52.2 50 802 24.1 5 23.1
15 11 44.4 54.8 50 731 23.3 5 26.5
16 11 44.4 54.8 50 469 19.4 5 30.4
17 6 44.4 52.2 50 376 17.5 5 29.7
18 4 44.4 50.4 50 330 16.4 5 29.0
19 5 44.4 51.4 50 300 15.6 5 30.8
20 6 44.4 52.2 50 239 13.6 5 33.6
21 8 44.4 53.4 50 166 10.4 5 38.0
1 11 44.4 54.8 50 1,314 28.4 5 21.4
2 3 44.4 49.2 50 1,242 27.9 5 16.3
3 3 44.4 49.2 50 1,198 27.6 5 16.6
4 4 44.4 50.4 50 1,175 27.4 5 18.0
5 6 44.4 52.2 50 1,105 26.9 5 20.3
6 7 44.4 52.9 50 1,059 26.5 5 21.4
7 3 44.4 49.2 50 965 25.7 5 18.5
8 10 44.4 54.4 50 923 25.3 5 24.1
9 2 44.4 47.4 50 792 24.0 5 18.4
10 8 44.4 53.4 50 744 23.5 5 24.9
11 6 44.4 52.2 50 647 22.2 5 25.0
12 5 44.4 51.4 50 604 21.6 5 24.8
13 4 44.4 50.4 50 579 21.3 5 24.1
14 6 44.4 52.2 50 509 20.2 5 27.0
15 11 44.4 54.8 50 442 18.9 5 30.9
16 11 44.4 54.8 50 203 12.2 5 37.6
17 6 44.4 52.2 50 142 9.1 5 38.1
18 4 44.4 50.4 50 129 8.2 5 37.2
19 5 44.4 51.4 50 134 8.6 5 37.8
20 6 44.4 52.2 50 132 8.4 5 38.8
21 8 44.4 53.4 50 197 11.9 5 36.5

41.6 47.4Residential North (3245
Depot Street)
East (3303
Madison Street)Commercial
South (7715 Evans
Street)
HVAC Noise Calculations
Residential 46.0
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Land Use Direction No. No. of Units
Reference
Noise Level
(dBA Leq)
Total
Reference
Noise Level
(dBA Leq)
Reference
Distance (ft) Distance (ft)
Distance
Attenuation
Shielding
(dBA)
Noise Level
(dBA Leq)
Composite
Noise Level
(dBA Leq)
HVAC Noise Calculations
1 11 44.4 54.8 50 919 25.3 5 24.5
2 3 44.4 49.2 50 847 24.6 5 19.6
3 3 44.4 49.2 50 803 24.1 5 20.1
4 4 44.4 50.4 50 780 23.9 5 21.5
5 6 44.4 52.2 50 710 23.0 5 24.2
6 7 44.4 52.9 50 666 22.5 5 25.4
7 3 44.4 49.2 50 572 21.2 5 23.0
8 10 44.4 54.4 50 531 20.5 5 28.9
9 2 44.4 47.4 50 406 18.2 5 24.2
10 8 44.4 53.4 50 360 17.1 5 31.3
11 6 44.4 52.2 50 268 14.6 5 32.6
12 5 44.4 51.4 50 233 13.4 5 33.0
13 4 44.4 50.4 50 209 12.4 5 33.0
14 6 44.4 52.2 50 158 10.0 5 37.2
15 11 44.4 54.8 50 127 8.1 5 41.7
16 11 44.4 54.8 50 257 14.2 5 35.6
17 6 44.4 52.2 50 325 16.3 5 30.9
18 4 44.4 50.4 50 391 17.9 5 27.5
19 5 44.4 51.4 50 419 18.5 5 27.9
20 6 44.4 52.2 50 457 19.2 5 28.0
21 8 44.4 53.4 50 551 20.8 5 27.6

45.7Industrial South (7555 Evans
Street)
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX E

EXTERIOR BARRIER REDUCTION CALCULATIONS

PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices Wall Calculator
Receiver Name
Wall
Height Wall Elevation Rec. elev.

Rec.

Height
Source
Elevation
Source
Height
Source to
Barrier
Rec. to
Source dist.

Rec. to Barr.
dist. N Noise Reduction
1 5 20 20 5 0 2 70 75 5 0.229257 6.9
2 6 0 0 5 0 2 70 90 20 0.087266 5.8
Sources: FTA Manual (2018)
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

N OISE AND V IBRATION I MPACT A NALYSIS
A PRIL 2023

M ADISON F LATS PROJECT

R IVERSIDE , C ALIFORNIA

P:\GBC2201 Madison Flats\Technical Studies\Noise\Report\Noise_20230519_CLEAN.docx «05/19/23»

APPENDIX F

SAMPLE INTERIOR NOISE CALCULATIONS
PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices PR-2022-001434 (GP, RZ, DR, VC-S) Exhibit 10 - Draft Mitigated Negative Declaration and Appendices

Riverside City CouncilSeptember 5, 2023

Riverside City Council
September 5, 2023