Agenda packet — City Council and Concurrent Authorities, October 17, 2023 (part 3 of 4)

EXHIBIT D

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ATTACHMENT B
PHASE1
585
ID Task Name Duration Start Finish
1 Project Management 102 days Tue 8/8/23 Wed 12/27/23
2 Notice to Proceed 0 days Tue 8/8/23 Tue 8/8/23
3 Kick Off Meeting 1 day Wed 8/9/23 Wed 8/9/23
4 Subconsultant Coordination 20 wks Thu 8/10/23 Wed 12/27/23 5 Public Outreach 25 days Thu 8/10/23 Wed 9/13/23
6 Obtain City Encroachment Permit for Surveys 5 days Thu 8/10/23 Wed 8/16/23 7 Prepare & Submit Public Notices & Right of Entry Letters to Property Owners 10 days Thu 8/10/23 Wed 8/23/23 8 Complete & Submit UPRR ROE Temporary Use Permit for Survey 5 days Thu 8/10/23 Wed 8/16/23 9 Coordinate with UPRR & Obatin ROE Temporary Use Permit for Survey 4 wks Thu 8/17/23 Wed 9/13/23 10 Background Research 180 days Thu 8/10/23 Wed 4/17/24 11 Data Collection 6 days Thu 8/10/23 Thu 8/17/23
12 Collect and Review Record Files & CCTV 1 wk Thu 8/10/23 Wed 8/16/23 13 Site Reconnaisance 1 day Thu 8/17/23 Thu 8/17/23
14 Topographic Surveys / Right of Way Mapping 10 days Thu 9/14/23 Wed 9/27/23 15 Field Survey & Right of Way Mapping 2 wks Thu 9/14/23 Wed 9/27/23 16 Utility Research and Coordination 180 days Thu 8/10/23 Wed 4/17/24 17 Utility Map Requests and Review 2 wks Thu 8/10/23 Wed 8/23/23 18 Utility Coordination 36 wks Thu 8/10/23 Wed 4/17/24
19 Prepare & Submit Utility Letters A & Preliminary Design to Utility Companies 1 wk Fri 9/15/23 Thu 9/21/23 20 Prepare & Submit Utility Letters B & 65% Plans to Utility Companies 5 days Thu 11/30/23 Wed 12/6/23 21 Prepare & Submit Utility Letters C & 100% Plans to Utility Companies 5 days Thu 3/14/24 Wed 3/20/24 22 Prepare and Submit Utility Relocation Exhibits 5 days Fri 9/29/23 Thu 10/5/23 23 Utility Companies Perform Relocation Design & Submit to UPRR & City 16 wks Fri 10/6/23 Thu 1/25/24 24 Utility Companies Obtain Approval from UPRR 10 wks Fri 1/26/24 Thu 4/4/24 25 Utility Potholing 11 days Thu 11/30/23 Thu 12/14/23
26 Prepare Utility Pothole Exhibits 3 days Thu 11/30/23 Mon 12/4/23 27 Perform Utility Potholing 1 day Tue 12/5/23 Tue 12/5/23 28 Prepare Data Report 5 days Wed 12/6/23 Tue 12/12/23
29 Review Pothole Data Report 2 days Wed 12/13/23 Thu 12/14/23 30 Geotechnical Investigation (if needed) 10 days Fri 10/6/23 Thu 10/19/23 31 Environmental Services 60 days Thu 9/14/23 Wed 12/6/23 32 Visit Project Site 1 day Thu 9/14/23 Thu 9/14/23
33 Prepare Initial Study/Mitigated Negative Declaration 4 wks Thu 9/14/23 Wed 10/11/23 34 Obtain CEQA Approval 8 wks Thu 10/12/23 Wed 12/6/23
35 Coordination & Meetings 180 days Thu 8/10/23 Wed 4/17/24 36 City Coordination 180 days Thu 8/10/23 Wed 4/17/24
37 Coordinate with City on Project Status Updates 36 wks Thu 8/10/23 Wed 4/17/24 38 Meetings 180 days Thu 8/10/23 Wed 4/17/24
39 Attend Quarterly Project Team Meetings During Design Phase 36 wks Thu 8/10/23 Wed 4/17/24 40 PS&E Design 178 days Fri 8/18/23 Tue 4/23/24
41 Prepare Draft Design Report 4 wks Fri 8/18/23 Thu 9/14/23 42 Submit Draft Design Report to City 0 days Thu 9/14/23 Thu 9/14/23 43 City Review 5 days Fri 9/15/23 Thu 9/21/23
44 Prepare Final Design Report 5 days Fri 9/22/23 Thu 9/28/23 45 Submit Final Design Report to City 0 days Thu 9/28/23 Thu 9/28/23 46 City Review 1 wk Fri 9/29/23 Thu 10/5/23
47 Design Team Meeting #1 0 days Thu 10/5/23 Thu 10/5/23 48 Prepare Base Map 5 days Thu 9/28/23 Wed 10/4/23
49 Prepare 65% PS&E 8 wks Thu 10/5/23 Wed 11/29/23
50 Submit 65% PS&E to City 0 days Wed 11/29/23 Wed 11/29/23 51 City Review 3 wks Thu 11/30/23 Wed 12/20/23
52 Design Team Meeting #2 0 days Wed 12/20/23 Wed 12/20/23 53 Prepare 90% PS&E 6 wks Thu 12/21/23 Wed 1/31/24
54 Submit 90% PS&E to City 0 wks Wed 1/31/24 Wed 1/31/24 55 City Review 2 wks Thu 2/1/24 Wed 2/14/24
56 Design Team Meeting #3 0 days Wed 2/14/24 Wed 2/14/24 57 Prepare 100% PS&E 4 wks Thu 2/15/24 Wed 3/13/24
58 Submit 100% PS&E to City 0 days Wed 3/13/24 Wed 3/13/24 59 City Review 2 wks Thu 3/14/24 Wed 3/27/24
60 Design Team Meeting #4 0 days Wed 3/27/24 Wed 3/27/24 61 Prepare Final PS&E Package to City 5 days Thu 3/28/24 Wed 4/3/24 62 Submit Final PS&E Package to City 0 days Wed 4/3/24 Wed 4/3/24 63 City Council Approval of Final PS&E Package 0 days Tue 4/23/24 Tue 4/23/24 64 Right of Entry 171 days Thu 8/10/23 Thu 4/4/24
65 Prepare Letters with Right of Entry Form to Affected Property Owners 5 days Thu 3/14/24 Wed 3/20/24 66 Obtain Right of Entry for Construction from Affected Property Owners 2 wks Thu 3/21/24 Wed 4/3/24 67 UPRR Coordination 171 days Thu 8/10/23 Thu 4/4/24
68 Contact UPRR Public Project Contact Center 1 day Thu 8/10/23 Thu 8/10/23 69 Complete & Submit Encased Non-Flammable Pipeline Crossing Exhibit A 10 days Fri 8/11/23 Thu 8/24/23 70 Field Walk with UPRR, City & Utility Company Representatives 1 day Fri 8/25/23 Fri 8/25/23 71 Coordinate with UPRR for Sewer Design 14 wks Thu 11/30/23 Wed 3/6/24 72 Assist City to Secure Construction & Maintenance Agreement with UPRR 4 wks Thu 3/7/24 Wed 4/3/24 73 Obtain Encroachment Permit for Construction from UPRR 1 day Thu 4/4/24 Thu 4/4/24 74 Bid Phase Support 45 days Wed 5/8/24 Tue 7/9/24
75 Advertise for Bid 21 days Wed 5/15/24 Wed 6/12/24
76 Prepare Resident Engineer Files 5 days Wed 5/8/24 Tue 5/14/24 77 Open Bids 0 days Wed 6/12/24 Wed 6/12/24
78 Negotiate Contract 5 days Thu 6/13/24 Wed 6/19/24
79 City Council Approval of Contract 0 days Tue 7/9/24 Tue 7/9/24 80 Construction Support 113 days Wed 7/24/24 Fri 12/27/24 81 Pre-Construction Meeting 1 day Wed 7/24/24 Wed 7/24/24 82 Construction 18 wks Thu 8/8/24 Wed 12/11/24
83 Post Construction Meeting 1 day Thu 12/12/24 Thu 12/12/24 84 Prepare As-Built Drawings 10 days Fri 12/13/24 Thu 12/26/24 85 Close-out 1 day Fri 12/27/24 Fri 12/27/24
86 Monument Preservation 6 days Fri 12/13/24 Fri 12/20/24 87 Prepare & Submit Corner Record to County if needed 5 days Fri 12/13/24 Thu 12/19/24 88 Prepare & Submit Monument Preservation Form to City 1 day Fri 12/20/24 Fri 12/20/24 8/8 Notice to Proceed
8/9 Kick Off Meeting
12/27 Subconsultant Coordination
8/16 Obtain City Encroachment Permit for Surveys
8/23 Prepare & Submit Public Notices & Right of Entry Letters to Property Owners 8/16 Complete & Submit UPRR ROE Temporary Use Permit for Survey 9/13 Coordinate with UPRR & Obatin ROE Temporary Use Permit for Survey 8/16 Collect and Review Record Files & CCTV
8/17 Site Reconnaisance
9/27 Field Survey & Right of Way Mapping
8/23 Utility Map Requests and Review
4/17 Utility Coordination
9/21 Prepare & Submit Utility Letters A & Preliminary Design to Utility Companies 12/6 Prepare & Submit Utility Letters B & 65% Plans to Utility Companies 3/20 Prepare & Submit Utility Letters C & 100% Plans to Utility Companies 10/5 Prepare and Submit Utility Relocation Exhibits
1/25 Utility Companies Perform Relocation Design & Submit to UPRR & City 4/4 Utility Companies Obtain Approval from UPRR
12/4 Prepare Utility Pothole Exhibits
12/5 Perform Utility Potholing
12/12 Prepare Data Report 12/14 Review Pothole Data Report 10/19 Geotechnical Investigation (if needed) 9/14 Visit Project Site 10/11 Prepare Initial Study/Mitigated Negative Declaration 12/6 Obtain CEQA Approval 4/17 Coordinate with City on Project Status Updates 4/17 Attend Quarterly Project Team Meetings During Design Phase 9/14 Prepare Draft Design Report 9/14 Submit Draft Design Report to City 9/21 City Review
9/28 Prepare Final Design Report 9/28 Submit Final Design Report to City 10/5 City Review
10/5 Design Team Meeting #1
10/4 Prepare Base Map
11/29 Prepare 65% PS&E
11/29 Submit 65% PS&E to City
12/20 City Review
12/20 Design Team Meeting #2
1/31 Prepare 90% PS&E
1/31 Submit 90% PS&E to City
2/14 City Review
2/14 Design Team Meeting #3
3/13 Prepare 100% PS&E
3/13 Submit 100% PS&E to City
3/27 City Review
3/27 Design Team Meeting #4
4/3 Prepare Final PS&E Package to City
4/3 Submit Final PS&E Package to City
4/23 City Council Approval of Final PS&E Package
3/20 Prepare Letters with Right of Entry Form to Affected Property Owners 4/3 Obtain Right of Entry for Construction from Affected Property Owners 8/10 Contact UPRR Public Project Contact Center 8/24 Complete & Submit Encased Non-Flammable Pipeline Crossing Exhibit A 8/25 Field Walk with UPRR, City & Utility Company Representatives 3/6 Coordinate with UPRR for Sewer Design
4/3 Assist City to Secure Construction & Maintenance Agreement with UPRR 4/4 Obtain Encroachment Permit for Construction from UPRR 6/12 Advertise for Bid
5/14 Prepare Resident Engineer Files
6/12 Open Bids
6/19 Negotiate Contract 7/9 City Council Approval of Contract 7/24 Pre-Construction Meeting 12/11 Construction
12/12 Post Construction Meeting
12/26 Prepare As-Built Drawings
12/27 Close-out 12/19 Prepare & Submit Corner Record to County if needed 12/20 Prepare & Submit Monument Preservation Form to City

E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M E B M August September October November December January February March April May June July August September October November December January February March City of Stockton Sewer Large Diameter Lines Rehabilitation Project - UPRR Property No. UW20020
Project Schedule Prepared by CSG Consultants (6/09/2023)

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EXHIBIT D

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PHASE2
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City of Stockton
Legislation Text
File #: 23-0771, Version: 1

ADOPT RESOLUTION TO AUTHORIZE THE MORMON SLOUGH SANITARY SEWER LINE

REHABILITATION PROJECT

RECOMMENDATION
It is recommended that the City Council adopt a resolution to:

1. Adopt the Final Initial Study/Mitigated Negative Declaration and Mitigation Monitoring Reporting Program and authorizing the filing of a Notice of Determination under the California Environmental Quality Act for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030.

2. Authorize the preparation of the final design plans and specifications for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030.

It is also recommended that the City Manager be authorized to take appropriate and necessary actions to carry out the purpose and intent of this resolution.

Summary
The Mormon Slough Sanitary Sewer Line Rehabilitation project requires a higher level of environmental analysis because the project is partially located in Mormon Slough. The project will rehabilitate approximately 2,600 feet of existing 24-inch pipe along Mormon Slough between Sierra Nevada Street and Bieghle Avenue (Attachment A - Vicinity Map). The project was included in the 2018-23 Five-Year Capital Improvement Plan (CIP).

The City must achieve State environmental clearance and compliance under the California Environmental Quality Act (CEQA) guidelines. The final CEQA Initial Study/Mitigated Negative Declaration has been prepared incorporating the comments received from the public and agencies (Exhibit 1 to Resolution). The project is in conformance with the City’s General Plan, pursuant to California Government Code, section 65402, and the final CEQA Initial Study/Mitigated Negative Declaration was prepared following requirements as specified under Title 14, Division 6, Chapter 3, Article 6, of the California Code of Regulations (CCR).

To finalize the environmental process for this project, staff recommends that Council adopt a resolution approving the Final Initial Study/Mitigated Negative Declaration and Mitigation Monitoring Reporting Program and authorizing the filing of a Notice of Determination under the CEQA for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030. It is anticipated that the final design phase will begin in fall of 2023.

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DISCUSSION
Background
The Municipal Utilities Department identified a 24-inch sewer trunk line along Mormon Slough for rehabilitation. The project will rehabilitate approximately 2,600 feet of existing 24-inch pipe along Mormon Slough between Sierra Nevada Street and Bieghle Avenue (Attachment A - Vicinity Map).

The project was included in the 2018-23 Five-Year CIP.

On April 2, 2019, by Motion No. 2019-04-02-1111, Council awarded a Professional Services Contract to KSN, Inc. for professional design services of the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030. The project was then paused for a time until sufficient work to update the Wastewater Master Plan was completed, as this work could possibly affect the scope of work for the project.

Initial master plan update work coordinated with a preliminary design report for the Mormon Slough project determined that the 24-inch sewer trunk line within Mormon Slough should be upsized to a 30 -inch line. This would accommodate future sewer flows anticipated as part of the City’s Wastewater Master Plan. Upsizing the existing pipe would require open cut trenching within Mormon Slough, which would result in additional geotechnical investigation, permitting, and environmental documentation to develop the design plans for the project.

Present Situation
To achieve State environmental clearance and compliance under the CEQA guidelines, a Final Initial Study/Mitigated Negative Declaration and Mitigation Monitoring Reporting Program was prepared.

The Final Initial Study/Mitigated Negative Declaration identified mitigation measures that would reduce the environmental effects of the project to a “less than significant” level. A Notice of Intent (NOI) to adopt the Initial Study/Mitigated Negative Declaration was published in The Record on January 12, 2023. The NOI provides notice of a 30-day public review/comment period on the draft Initial Study/Mitigated Negative Declaration document. Members of the public and other public agencies were allowed to review the draft Initial Study/Mitigated Negative Declaration document. The review/comment period ended on February 10, 2023. The CEQA Final Initial Study/Mitigated Negative Declaration has been prepared incorporating the comments received from the public and agencies (Exhibit 1 to Resolution).

To finalize the environmental process for this project, staff recommends that Council adopt a resolution approving the Final Initial Study/Mitigated Negative Declaration and Mitigation Monitoring Reporting Program and authorizing the filing of a Notice of Determination under the CEQA for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030. Completing the environmental process would also facilitate obtaining permits for the project.

The project preliminary design and CEQA environmental documentation are complete. The project is in conformance with the City’s General Plan, pursuant to California Government Code, section 65402, and the CEQA Initial Study/Mitigated Negative Declaration was prepared following requirements as specified under Title 14, Division 6, Chapter 3, Article 6, of the CCR. It is anticipated that the final design phase will begin in fall of 2023.

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FINANCIAL SUMMARY
There is no impact to the City’s General Fund or any other unrestricted fund as a result of taking the recommended actions.

Attachment A - Vicinity Map
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ATTACHMENT A
604
Resolution No.

STOCKTON CITY COUNCIL

RESOLUTION ADOPTING THE FINAL INITIAL STUDY/MITIGATED NEGATIVE

DECLARATION AND MITIGATION MONITORING REPORTING PROGRAM, AND

AUTHORIZING PREPARATION OF THE FINAL DESIGN FOR THE MORMON SLOUGH SANITARY SEWER LINE REHABILITATION, PROJECT NO. UW18030 The Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030, will rehabilitate approximately 2,600 feet of existing 24-inch pipe along Mormon Slough between Sierra Nevada Street and Bieghle Avenue; and
Initial master plan update work coordinated with a preliminary design report for the Mormon Slough project determined that the 24-inch sewer trunk line within Mormon Slough should be upsized to a 30-inch line to accommodate future sewer flows anticipated as part of the City’s Wastewater Master Plan; and On April 2, 2019, by Motion No. 2019-04-02-1111, the City Council awarded a Professional Services Contract to KSN, Inc. for professional design services of the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030; and The project is in conformance with the City’s General Plan, pursuant to California Government Code, section 65402, and the California Environmental Quality Act (CEQA) Final Initial Study/Mitigated Negative Declaration was prepared following requirements as specified under Title 14, Division 6, Chapter 3, Article 6, of the California Code of Regulations; now, therefore,

BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF STOCKTON, AS FOLLOWS:

1. The City Council adopts the Final Initial Study/Mitigated Negative Declaration and Mitigation Monitoring Reporting Program and authorizes the filing of a Notice of Determination under the CEQA for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No. UW18030 (formerly M18030), a copy of which is attached as Exhibit 1 and Exhibit 2 and incorporated by this reference.

2. The City Council authorizes the preparation of the final design plans and specifications for the Mormon Slough Sanitary Sewer Line Rehabilitation, Project No.

UW18030 (formerly M18030).
//
//
//
605

3. The City Manager is hereby authorized to take whatever actions are necessary and appropriate to carry out the purpose and intent of this Resolution.

PASSED, APPROVED, and ADOPTED October 17, 2023 .

KEVIN J. LINCOLN II
Mayor of the City of Stockton
ATTEST:

ELIZA R. GARZA, CMC
City Clerk of the City of Stockton
606
FINAL

INITIAL STUDY/

MITIGATED NEGATIVE DECLARATION

FOR THE

MORMON SLOUGH SANITARY SEWER

LINE REPLACEMENT PROJECT
Project ID: UW18030
Stockton, CA
Ba Camp Enviro1unentali Inc.

May 18, 2023
Prepared for:

City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Prepared by:

BaseCamp Environmental, Inc.
802 W. Lodi Avenue
Lodi, CA 95240
EXHIBIT 1 607
FINAL

INITIAL STUDY/

MITIGATED NEGATIVE DECLARATION

FOR THE

MORMON SLOUGH SANITARY SEWER

LINE REPLACEMENT PROJECT
Project ID: UW18030
Stockton, CA
May 18, 2023
Prepared for:

City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Prepared by:

BaseCamp Environmental, Inc.
802 W. Lodi Avenue
Lodi, CA 95240
209-224-8213
basecampenv.com
EXHIBIT 1 608

TABLE OF CONTENTS
Page

NEGATIVE DECLARATION V
A. General Project Information V
B. Environmental Factors Potentially Affected Vl
C. Lead Agency Determination Vll
Chapter 1.0 INTRODUCTION 1-1

1.1 Project Brief 1-1

1.2 Purpose of Initial Study 1-1

1.3 Project Background 1-2

1.4 Environmental Evaluation Checklist Terminology 1-2

1.5 Summary of Environmental Effects and Mitigation Measures 1-2 Chapter 2.0 PROJECT DESCRIPTION 2-1

2.1 Project Location 2-1

2.2 Project Details 2-1

2.3 Permits and Approvals 2-2
Chapter 3.0 ENVIRONMENTAL CHECKLIST FORM 3-1

3.1 Aesthetics 3-1

3.2 Agriculture and Forestry Resources 3-3

3.3 Air Quality 3-5

3.4 Biological Resources 3-9

3.5 Cultural Resources 3-17

3.6 Energy 3-20

3.7 Geology and Soils 3-21

3.8 Greenhouse Gas Emissions 3-25

3.9 Hazards and Hazardous Materials 3-27
EXHIBIT 1 609

3.10 3.11

3.12 3.13

3.14 3.15

3.16 3.17

3.18 3.19

3.20 3.21
Chapter 4.0

4.1 4.2
Hydrology and Water Quality
Land Use and Planning
Mineral Resources
Noise
Population and Housing
Public Services
Recreation
Transportation
Tribal Cultural Resources
Utilities and Service Systems
Wildfire
Mandatory Findings of Significance

REFERENCES
Document Preparers
References Cited
3-31
3-35
3-36
3-37
3-42
3-43
3-44
3-45
3-47
3-49
3-51
3-53
4-1
4-1
4-1
Chapter 5.0 NOTES RELATED TO EVALUATION OF ENVIRONMENTAL IMPACTS 5-1

APPENDICES
A. RCEM Results
B. Biological Resources Report
C. Cultural Resource Report
ii
EXHIBIT 1 610

LIST OF TABLES
1-1 Summary of Environmental Impacts and Mitigation Measures 1-7 2-1 Project Details 2-1
3-1 San Joaquin Valley Air Basin Attainment Status 3-6
3-2 SN APCD Significance Thresholds and Project Construction Emissions 3-7 3-3 City of Stockton Land Use Noise Standards 3-38
3-4 Groundbome Vibration Thresholds 3-39
3-5 Construction Equipment Noise 3-40
3-6 Vibration Source Levels for Construction Equipment 3-41

LIST OF FIGURES
1-1 Regional Project Location 1-3
1-2 Street Map 1-4
1-3 USGSMap 1-5
1-4 Aerial Photo 1-6
2-1 Site Plan 2-4
2-2 Alignment Plan 2-5
iii
EXHIBIT 1 611

LIST OF ACRONYMS AND ABBREVIATIONS USED IN THIS DOCUMENT AB
APN
BMP
Cal Fire
Caltrans
Cal Water
CAP
CEQA
co
CO2e
dB
EIR
FEMA
GHG
IS/MND
Leg
LOS
NOx
PM10
PM2.s
RCEM
ROG
SB
SJCOG
SJMSCP
SNAPCD
SWPPP
SWRCB
TAC
USA
VMT
Assembly Bill
Assessor's Parcel Number
Best Management Practice
California Department of Forestry and Fire Protection
California Department of Transportation
California Water Service
Climate Action Plan
California Environmental Quality Act
carbon monoxide
carbon dioxide equivalent
decibel
Environmental Impact Report
Federal Emergency Management Agency
greenhouse gas
Initial Study/Mitigated Negative Declaration
equivalent sound level
Level of Service
nitrogen oxides
particulate matter 10 microns or less in diameter
particulate matter 2.5 microns or less in diameter
Road Construction Emissions Model
reactive organic gases
Senate Bill
San Joaquin Council of Governments
San Joaquin County Multi-Species Open Space and Habitat Conservation Plan
San Joaquin Valley Air Pollution Control District
Storm Water Pollution Prevention Plan
State Water Resources Control Board
toxic air contaminant
Underground Service Alert
vehicle miles traveled
iv
EXHIBIT 1 612

VMITIGATED NEGATIVE DECLARATION
A. General Project Information
Project Title: Mormon Slough Sanitary Sewer Line
Replacement
Lead Agency Name and Address: City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Contact Person and Phone Number: Seng Lo, (209) 937-8389 Project Location: Along Mormon Slough approximately between South Airport Way and Beighle Alley in eastcentral Stockton and along Sierra Nevada Street.

Project Sponsor Name and Address: City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
General Plan Designation: Open Space/ Agricultural, Industrial Zoning: Public Facilities, Industrial, Limited Industrial, General
Project Description: The project proposes the replacement of approximately 2,600 feet of existing 24-inch
diameter, reinforced concrete sanitary sewer
pipeline with 30 to 36 inch pipeline to be installed
by trenching or jacked casing. Approximately 700
feet of existing pipeline along Sierra Nevada Street
would be replaced; the remaining lineal footage of
replacement would be for existing pipeline along
Mormon Slough.

Surrounding Land Uses and Setting: The existing pipeline is located within and along the alignment of Mormon Slough, an intermittent
flood control channel that flows through Stockton.

The project alignment is largely unvegetated but
include scattered trees, shrubs, grasses, and ruderal
vegetation. Mormon Slough is adjacent to
intensive urban development consisting mainly of
V
EXHIBIT 1 613
Other Public Agencies Whose
Approval is Required:

Have California Native American
tribes traditionally and culturally
affiliated with the project area
requested consultation pursuant to
Public Resources Code Section
21080.3 .1? If so, has consultation
begun?
industrial, commercial, and residential land uses. A
number of homeless encampments are located
along the alignment.

U.S. Army Corps of Engineers (Section 404
permit), California Department of Fish and
Wildlife (Streambed Alteration Agreement),
Regional Water Quality Control Board (Section
401 Water Quality Certification), Central Valley
Flood Protection Board (encroachment permit)
No tribes have requested consultation.

B. Environmental Factors Potentially Affected
The environmental factors checked below may be significantly affected by this project, involving at least one impact that is a "Potentially Significant Impact" prior to mitigation.

Mitigation measures that would avoid potential effects or reduce them to a less than significant level have been prescribed for each of these effects, as described in the checklist and narrative on the following pages, and in the Summary Table at the end of Chapter 1.0.

Aesthetics Agriculture/Forestry Air Quality
Resources
v' Biological Resources ../ Cultural Resources Energy
v' Geology/Soils Greenhouse Gas Emissions v' Hazards/Hazardous Materials
../ Hydrology/Water Quality Land Use Mineral Resources
../ Noise ../ Population/Housing Public Services
Recreation Transportation v' Tribal Cultural Resources
v' Utilities/Service Systems Wildfire v' Mandatory Findings of Significance
vi
EXHIBIT 1 614
C. Lead Agency Determination
On the basis of this initial evaluation:
□ I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared.

V I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project and/or mitigation measures that would reduce potential effects to a less than significant level have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared.
□ I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required.
□ I find that the proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated" impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMP ACT REPORT is required, but it must analyze only the effects that remain to be addressed. □ I find that although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required.

CITY OF STOCKTON

PUBLIC WORKS DEPARTMENT
Jodi Almassy, Director Date
vii
EXHIBIT 1 615

PUBLIC REVIEW DRAFT

INITIAL STUDY/

MITIGATED NEGATIVE DECLARATION

FOR THE

MORMON SLOUGH SANITARY SEWER

LINE REPLACEMENT PROJECT
Project ID: UW18030
Stockton, CA
Ba eCamp Envirorunental, Inc.

January 12, 2023
Prepared for:

City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Prepared by:

BaseCamp Environmental, Inc.
802 W. Lodi Avenue
Lodi, CA 95240
EXHIBIT 1 616

PUBLIC REVIEW DRAFT

INITIAL STUDY/

MITIGATED NEGATIVE DECLARATION

FOR THE

MORMON SLOUGH SANITARY SEWER

LINE REPLACEMENT PROJECT
Project ID: UW18030
Stockton, CA
January 12, 2023
Prepared for:

City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Prepared by:

BaseCamp Environmental, Inc.
802 W. Lodi Avenue
Lodi, CA 95240
209-224-8213
basecampenv.com
EXHIBIT 1 617

TABLE OF CONTENTS
Page

NEGATIVE DECLARATION V
A. General Project Information V
B. Environmental Factors Potentially Affected VI
C. Lead Agency Determination Vll
Chapter 1.0 INTRODUCTION 1-1

1.1 Project Brief 1-1

1.2 Purpose of Initial Study 1-1

1.3 Project Background 1-2

1.4 Environmental Evaluation Checklist Terminology 1-2

1.5 Summary of Environmental Effects and Mitigation Measures 1-2 Chapter 2.0 PROJECT DESCRIPTION 2-1

2.1 Project Location 2-1

2.2 Project Details 2-1

2.3 Permits and Approvals 2-2
Chapter 3.0 ENVIRONMENTAL CHECKLIST FORM 3-1

3.1 Aesthetics 3-1

3.2 Agriculture and Forestry Resources 3-3

3.3 Air Quality 3-5

3.4 Biological Resources 3-9

3.5 Cultural Resources 3-17

3.6 Energy 3-20

3.7 Geology and Soils 3-21

3.8 Greenhouse Gas Emissions 3-25

3.9 Hazards and Hazardous Materials 3-27
EXHIBIT 1 618

3.10 3.11

3.12 3.13

3.14 3.15

3.16 3.17

3.18 3.19

3.20 3.21
Chapter 4.0

REFERENCES
Document Preparers
References Cited
3-31
3-35
3-36
3-37
3-42
3-43
3-44
3-45
3-47
3-49
3-51
3-53
4-1
4-1
4-1
Chapter 5.0 NOTES RELATED TO EVALUATION OF ENVIRONMENTAL IMPACTS 5-1

APPENDICES
A. RCEM Results
B. Biological Resources Report
C. Cultural Resource Report
ii
EXHIBIT 1 619

LIST OF FIGURES
1-1 Regional Project Location 1-3
1-2 Street Map 1-4
1-3 USGSMap 1-5
1-4 Aerial Photo 1-6
2-1 Site Plan 2-4
2-2 Alignment Plan 2-5
iii
EXHIBIT 1 620

Project Sponsor Name and Address: City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
General Plan Designation: Open Space/ Agricultural, Industrial Zoning: Public Facilities, Industrial, Limited Industrial, General
Project Description: The project proposes the replacement of approximately 2,600 feet of existing 24-inch
diameter, reinforced concrete sanitary sewer
pipeline with 30 to 36 inch pipeline to be installed
by trenching or jacked casing. Approximately 700
feet of existing pipeline along Sierra Nevada
Street would be replaced; the remaining lineal
footage of replacement would be for existing
pipeline along Mormon Slough.

Surrounding Land Uses and Setting: The existing pipeline is located within and along the alignment of Mormon Slough, an intermittent
flood control channel that flows through Stockton.

The project alignment is largely unvegetated but
include scattered trees, shrubs, grasses, and
ruderal vegetation. Mormon Slough is adjacent to
intensive urban development consisting mainly of
V
EXHIBIT 1 622
Other Public Agencies Whose
Approval is Required:

A number of homeless encampments are located
along the alignment.

Aesthetics Agriculture/Forestry Air Quality
Resources
v' Biological Resources v' Cultural Resources Energy
v' Geology/Soils Greenhouse Gas Emissions v' Hazards/Hazardous Materials
v' Hydrology/Water Quality Land Use Mineral Resources
v' Noise v' Population/Housing Public Services
Recreation Transportation v' Tribal Cultural Resources
v' Utilities/Service Systems Wildfire v' Mandatory Findings of Significance
vi
EXHIBIT 1 623
C. Lead Agency Determination
On the basis of this initial evaluation:
□ I find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared.

V I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project and/or mitigation measures that would reduce potential effects to a less than significant level have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared.
□ I find that the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required.
□ I find that the proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated" impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed.
□ I find that although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required.

CITY OF STOCKTON

PUBLIC WORKS DEPARTMENT
Jodi Almassy, Director Date
vii
EXHIBIT 1 624

1.0 INTRODUCTION

1.1 Project Brief
This document is an Initial Study/Mitigated Negative Declaration (IS/MND) for the Mormon Slough Sanitary Sewer Line Replacement Project (project). The project site is a largely new pipeline alignment that follows the existing sewer line to be replaced over a distance of approximately 2,600 feet. The existing line to be replaced extends south along Sierra Nevada Street, then east along Mormon Slough from Sierra Nevada Street to the vicinity of Bieghle Alley in the City of Stockton, San Joaquin County, California (Figures 1-1 through 1-4 and 2-1). The City of Stockton (City) is the project proponent is the Lead Agency for the purposes of CEQA. The project would require approval by the Stockton City Council and approvals from agencies with jurisdiction over the Slough portions of the alignment. This IS/MND has been prepared in compliance with the requirements of the California Environmental Quality Act (CEQA).

1.2 Purpose of Initial Study
CEQA requires that public agencies document and consider the potential environmental effects of the agency's actions that meet CEQA's definition of a project. Briefly summarized, a "project" is an action that may cause direct or indirect physical changes in the environment. A project includes the agency's direct activities and activities that involve public agency approvals or funding. The CEQA Guidelines (California Code of Regulations Title 14, Division 6, Chapter 3) provides guidance for an agency's implementation of CEQA.

Provided that a project is not exempt from CEQA, the first step in the agency's consideration of its potential environmental effects is the preparation of an Initial Study.

The purpose of an Initial Study is to determine whether the project would involve "significant" environmental effects, as defined by CEQA, and to describe feasible mitigation measures that would avoid identified significant effects or reduce them to a level that is less than significant. If the Initial Study does not identify significant effects, then the agency ordinarily prepares a Negative Declaration. If the Initial Study concludes that significant effects would occur but also identifies mitigation measures that would reduce these significant effects to a level that is less than significant, then the agency may prepare a Mitigated Negative Declaration. If a project would involve significant effects that cannot be feasibly mitigated, then the agency must prepare an Environmental Impact Report (EIR). The agency may also decide to proceed directly with the preparation of an EIR without first preparing an Initial Study.

The proposed project is a "project" as defined by CEQA and is not exempt from CEQA consideration. The City has determined that the project may have potentially significant environmental effects and therefore requires preparation of an Initial Study. This Initial Study describes the proposed project and its environmental setting, discusses the potential Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 1-1 January 2023 EXHIBIT 1 625
environmental effects of the project, and identifies feasible mitigation measures that would eliminate any potentially significant environmental effects of the project or reduce them to a level that would be less than significant. The Initial Study considers the project's potential for significant environmental effects in the following subject areas:
• Aesthetics
• Agricultural Resources
• Air Quality
• Biological Resources
• Cultural Resources
• Energy
• Geology and Soils
• Greenhouse Gas Emissions
• Hazards and Hazardous
Materials
• Hydrology and Water Quality
• Land Use and Planning
• Mineral Resources
• Noise
• Population and Housing
• Public Services
• Recreation
• Transportation/Traffic
• Tribal Cultural Resources
• Utilities and Service Systems
• Wildfire
• Mandatory Findings of
Significance (including
Cumulative Impacts)
This Initial Study concludes that the project would have potentially significant environmental effects but that all these effects would be avoided or reduced to a level that would be less than significant with identified mitigation measures. The project applicant (City) has accepted the obligation to implement all the mitigation measures. As a result, the City has prepared a Mitigated Negative Declaration and has issued a Notice of Intent to adopt the IS/MND for the project. The Notice of Intent, inside the cover of this document, shows the time available for public comment on the IS/MND.

1.3 Project Background
The subject sewer line is an existing 24-inch reinforced concrete trunk line transporting wastewater collected from the eastern portions of Sanitary Sewer Collection System #6 and portions of System #4 to other successively larger trunk lines leading to the City Regional Wastewater Control Facility on Navy Drive.

1.4 Environmental Evaluation Checklist Terminology
The project's potential environmental effects are evaluated in the Environmental Evaluation Checklist presented in Chapter 3.0 of this IS/MND. The checklist includes a list of environmental considerations against which the project is evaluated. For each question, the City determines whether the project would involve 1) a Potentially Significant Impact, 2) a Less Than Significant Impact with Mitigation Incorporated, 3) a Less Than Significant Impact, or 4) No Impact.
• A Potentially Significant Impact occurs when there is substantial evidence that the project would involve a substantial adverse change to the physical environment, i.e., the environmental effect may be significant, and feasible mitigation measures have not been defined that would reduce the impact to a Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 1-2 January 2023 EXHIBIT 1 626
level that would be less than significant. If there is a Potentially Significant Impact entry in the Initial Study, then an EIR is required. No Potentially Significant Impacts have been identified in this IS/MND. • An environmental effect of the project that is Less Than Significant with Mitigation Incorporated is a Potentially Significant Impact that can be avoided or reduced to a level that is less than significant with the application of defined mitigation measures. This IS/MND identifies several impacts that are Less than Significant with Mitigation Incorporated.
• A Less Than Significant Impact occurs when the project would involve an environmental impact, but the impact would not cause a substantial adverse change to the physical environment that would require mitigation. This IS/MND identifies several impacts that are considered Less than Significant. • A determination of No Impact is self-explanatory. This IS/MND identifies several areas of environmental concern in which the project would have No Impact on the physical environment.

This IS/MND identifies certain potentially significant environmental effects that would be mitigated by implementation of existing provisions of law and standards of practice related to land use planning and environmental protection. Where appropriate, such provisions are identified and considered in the environmental impact analysis, and the degree to which they would reduce potential environmental effects is discussed. These protections are considered part of the existing regulatory environment and are assumed to avoid or minimize the potential environmental effects of the project. Additional mitigation measures are identified in this Initial Study, as necessary, when existing provisions of law and standards of practice are not adequate to avoid potentially significant environmental effects or to reduce them to a level that is less than significant.

1.5 Summary of Environmental Effects and Mitigation Measures Table 1-1, which follows Figures 1-1 through 1-4, summarizes the results of the Environmental Evaluation Checklist and associated narrative discussion in Chapter 3.0 of this IS/MND. The potential environmental impacts of the proposed project are listed in the left-most column of this table. The level of significance of each impact is indicated in the second column. Feasible mitigation measures that avoid or minimize the impacts, if necessary, are shown in the third column, and the significance of the impact after the mitigation measures are applied is shown in the fourth column.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 1-2 January 2023 EXHIBIT 1 627
Stockton
V
Figure 1-1

REGIONAL PROJECT LOCATION
EXHIBIT 1 628
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Figure 1-2

STREET MAP
EXHIBIT 1 629
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SOURCE: USGS Quadrangle Map, Stockton West 1968
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Figure 1-3

USGSMAP
EXHIBIT 1 630
SOURCE: Google Earth
Figure 1-4

AERIAL PHOTO
EXHIBIT 1 631
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Significance
Before Mitigation
Potential ImQact Measures

3.1 AESTHETICS
a) Scenic Vistas NI
b) Scenic Resources and Highways NI
c) Visual Character and Quality LS
d) Light and Glare LS

3.2 AGRICULTURE AND FORESTRY RESOURCES
a) Agricultural Land Conversion NI
b) Conflict with Agricultural Zoning or Williamson NI
Act Contract
c) Conflict with Forest Land Zoning NI
d) Forest Land Conversion NI
e) Conversion or loss of Farmland, Forestland, and NI
Timberland

3.3 AIR QUALITY
a) Consistency with Air Quality Plans LS
b) Cumulative Emissions LS
d) Exposure of Sensitive Receptors LS
e) Odors and Other Emissions LS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
1-8
Significance
After Mitigation
Measures
January 2023
EXHIBIT 1 632
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential lm_2act

3.4 BIOLOGICAL RESOURCES
a) Special-Status Species
b) Riparian and Sensitive Habitats,
c) Waters of the U.S. and Wetlands
d) Fish and Wildlife Movement
e) Local Biological Requirements
f) Habitat Conservation Plans
Significance
Before Mitigation
Measures
PS
LS
PS
PS
NI
PS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Significance
After Mitigation
Mitigation Measures Measures
BI0-1: The City shall apply to the San Joaquin Council of LS Governments (SJCOG) for coverage under the San Joaquin
County Multi-Species Open Space and Habitat Conservation Plan (SJMSCP). The project site shall be inspected by the SJMSCP biologist, who will recommend which Incidental
Take Minimization Measures (ITMMs) set forth in the
SJMSCP shall be implemented. The project applicant shall pay the required SJMSCP fee, if any, and be responsible for the implementation of the specified ITMMs.

None required
BI0-2: Prior to the start of construction work, the City shall obtain an appropriate permit from the U.S. Army
Corps of Engineers (Corps). As part of the permit process, the Corps shall verify delineations identifying jurisdictional Waters of the U.S. and wetlands. The delineations shall be used to determine if any project work will encroach upon any jurisdictional water, thereby necessitating an
appropriate permit. Depending on the Corps permit issued, the City shall also apply for a Section 401 Water Quality Certification from the Central Valley Regional Water
Quality Control Board.

BI0-3: Prior to the start of construction work, the City shall obtain any necessary permits from the California
Department of Fish and Wildlife and the Central Valley
Flood Protection Board. The City shall comply with all
conditions attached to any required permit.

Mitigation Measure BI0-1.

None required
Mitigation Measure BI0-1.
1-9
LS
LS
LS
January 2023
EXHIBIT 1 633
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential lm_2act

3.5 CULTURAL RESOURCES
a) Historic Resources
b) Archaeological Resources
c) Human Burials

3.6 ENERGY
a) Consumption of Energy Resources
b) Conflict with Energy Plans

3.7 GEOLOGY AND SOILS
a-i) Fault Rupture Hazards
a-ii) Seismic Ground Shaking
a-iii) Seismic-Related Ground Failure
Significance
Before Mitigation
Measures Mitigation Measures
NI
PS
LS
LS
NI
NI
LS
LS
None required
CULT-1: If any subsurface archaeological resources are
encountered during construction, all construction
activities within a SO-foot radius of the encounter shall be immediately halted until a qualified archaeologist can
examine these materials, initially evaluate their
significance and, if potentially significant, recommend measures on the disposition of the resource.

Recommended measures could include, but are not limited to, 1) preservation in place, or 2) excavation, recovery, and curation by qualified professionals. The Public Works
Department shall be notified, and the contractor shall be responsible for retaining qualified professionals,
implementing recommended mitigation measures, and
documenting mitigation efforts in a written report to the Public Works Department, consistent with the
requirements of the CEQA guidelines.

None required
None required
None required
None required
None required
None required
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 1-10 Significance
After Mitigation
Measures
LS
January 2023
EXHIBIT 1 634
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
a-iv) Landslides
b) Soil Erosion
c) Geologic Instability
d) Expansive Soils
e) Adequacy of Soils for Sewage Disposal
f) Paleontological Resources

3.8 GREENHOUSE GAS EMISSIONS
a, b) Project GHG Emissions and Consistency with
GHG Reduction Plans

3.9 HAZARDS AND HAZARDOUS MATERIALS
a) Hazardous Materials Transport, Use and Disposal
b) Upset and Accident Conditions
Significance
Before Mitigation
Measures
NI
LS
LS
LS
NI
PS
LS
NI
PS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
None required
None required
None required
None required
None required
GE0-1: If any paleontological resources are encountered during project construction, all activities shall be halted within 50 feet of the discovery until a qualified
paleontologist can examine these materials, determine
their significance and, if significant, recommend mitigation measures that would reduce potential effects to a level that is less than significant Such measures could include 1) preservation in place or 2) excavation, recovery, and
curation by qualified professionals. The project applicant shall be responsible for retaining qualified professionals, implementing recommended mitigation measures, and
documenting mitigation efforts in a written report to the Municipal Utilities Department, consistent with the
requirements of the CEQA Guidelines.

None required
None required
HAZ-1: Construction activity in the vicinity of the Mormon Slough channel shall at all times be isolated from any
wetted portion of the channel, so as to prevent any
potential contamination from surface runoff or liquid
1-11
Significance
After Mitigation
Measures
LS
LS
January 2023
EXHIBIT 1 635
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im.Qact
c) Release of Hazardous Materials near Schools
d) Hazardous Materials Sites
e) Public Airports
f) Emergency Response and Evacuations
Significance
Before Mitigation
Measures
NI
PS
NI
PS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
materials spilled within the construction area. The project shall comply with applicable requirements of all State and federal agency permits related to construction of the
project.

None required
HAZ-2: Prior to the start of construction on the Mormon Slough portion of the project alignment within 400 feet of Wilson Way, a Phase I Environmental Site Assessment shall be conducted to determine whether and where potential
soil contamination may exist within the project alignment.

Where the assessment indicates the potential presence of soil contamination, additional investigation and testing shall be conducted to identify areas of contamination that could pose a risk to human health. Any such contaminated area identified shall be remediated in accordance with
applicable State and local regulations pertaining to the contaminant.

None required
HAZ-3: Prior to the start of work in Sierra Nevada Street, the contractor shall prepare and implement a Traffic
Control Plan in coordination with the Stockton Public
Works, Police, and Fire Departments. The Traffic Control Plan shall address the routing of emergency vehicles, truck routing, and handling of pre-project daily traffic volumes as required during the construction period. It also shall
address access to adjacent properties, pedestrian and
bicycle safety provisions, and notification in advance of any street and driveway closures. The contractor shall specify dates and times of road closures or restrictions, if any, and shall ensure that adequate access will be provided for
emergency vehicles.
1-12
Significance
After Mitigation
Measures
LS
LS
January 2023
EXHIBIT 1 636
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
g) Wildland Fire Hazards

3.10 HYDROLOGY AND WATER QUALITY
a) Water Quality
b) Groundwater Supplies and Recharge
c-i, ii) Drainage Patterns
c-iii) Runoff
c-iv) Flooding Hazards
d) Release of Pollutants in Flood, Tsunami, or Seiche
Zones
e) Conflicts with Water Quality or Groundwater
Management Plans

3.11 LAND USE AND PLANNING
Significance
Before Mitigation
Measures
LS
PS
NI
NI
NI
NI
NI
LS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
None required
HYDRO-1: A Water Quality Control Plan shall be prepared for the project which shall identify project-specific water quality control measures that will minimize potential for erosion and sedimentation of the Mormon Slough waterway. The Plan shall include identification of construction units that can be hydrologically isolated from the waterway by grading or placement of soil; and the placement, maintenance and periodic inspection of erosion control devices.

The requirements of the Water Quality Control Plan shall be integrated with Construction General Permit requirements and applicable requirements of the US Army Corps of Engineers Section 404 permit, the Section 401 Water Quality
Certification from RWQCB, and the CDFW Lake and
Streambed Alteration Agreement.

None required
None required
None required
None required
None required
None required
1-13
Significance
After Mitigation
Measures
LS
January 2023
EXHIBIT 1 637
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
a) Division of Established Community
b) Conflicts with Land Use Plans, Policies and
Regulations

3.12 MINERAL RESOURCES
a, b) Availability of Mineral Resources

3.13 NOISE
a) Generation of Noise Exceeding Local Standards
Significance
Before Mitigation
Measures
NI
LS
NI
PS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
None required
None required
None required
NOISE-1: The following measures shall be implemented to minimize noise impacts at sensitive receptors (i.e.,
residences) during construction:
• Construction activities shall be limited to the hours from 7:00 a.m. to 6:00 p.m. on all working days.

Construction work shall not occur on Sundays and
federal holidays.
• Use newer equipment with improved muffling and
ensure that all equipment items have the
manufacturers' recommended noise abatement
measures, such as mufflers, engine enclosures, and
engine vibration isolators intact and operational. All
construction equipment shall be inspected at periodic
intervals to ensure proper maintenance and presence
of noise control devices ( e.g., mufflers and shrouding, etc.).
• Turn off idling equipment when not in use for more
than 5 minutes, in accordance with State regulation.
• Conduct noisier construction operations during times
of least sensitivity to receptors.
1-14
Significance
After Mitigation
Measures
LS
January 2023
EXHIBIT 1 638
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
b) Exposure to Groundborne Vibrations
c) Public Airport and Private Airstrip Noise

3.14 POPULATION AND HOUSING
a) Unplanned Population Growth
b) Displacement of Housing or People

3.15 PUBLIC SERVICES
a-i) Fire Protection
a-ii) Police Protection
a-iii) Schools
a-iv) Parks
a-v) Other Public Facilities

3.16 RECREATION
a, b) Recreational Facilities

3.17 TRANSPORTATION
a) Conflicts with Transportation Programs and
Plans
b) Conflict with CEQA Guidelines Section
15064.3(b)
Significance
Before Mitigation
Measures
LS
NI
NI
NI
NI
NI
NI
NI
NI
NI
NI
NI
-
-
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
• Provide frequent activity update of all construction
activities to affected residences.

None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
None required
1-15
Significance
After Mitigation
Measures
January 2023
EXHIBIT 1 639
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
c) Traffic Hazards
d) Emergency Access

3.18 TRIBAL CULTURAL RESOURCES
a, b) Tribal Cultural Resources

3.19 UTILITIES AND SERVICE SYSTEMS
a) Relocation or Construction of Utility Facilities
Significance
Before Mitigation
Measures
NI
PS
PS
PS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
None required
Mitigation Measure HAZ-3.

TCR-1: If tribal cultural resources, including human
remains and associated funerary objects, are encountered, the City shall be immediately notified of the find, and the City shall notify the appropriate tribal representatives. The qualified archaeologist and tribal representatives shall examine the materials and determine their significance as tribal cultural resources and shall recommend mitigation measures needed to reduce potential cultural resource
effects to a level that is less than significant in a written report to the City, with a copy to the tribal representatives.

The City will be responsible for implementing the report recommendations. Avoidance is the preferred means of
disposition of tribal cultural resources.

UTIL-1: Existing utility lines and facilities shall be
identified on project plans. Project design shall enable construction of the planned improvements to occur
without damage to existing utilities. Should utility conflicts be unavoidable, project plans and specifications shall
provide for relocation or reconstruction of existing utilities as required.

UTIL-2: The project contractor shall consult with
Underground Service Alert (USA) prior to construction to verify the location of any underground utilities in the construction area. Should USA identify an underground
utility facility not accounted for in the project plans, the City shall contact the company or agency responsible for the facility in question to verify its existence. If the 1-16
Significance
After Mitigation
Measures
LS
LS
LS
January 2023
EXHIBIT 1 640
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Potential Im,2act
b) Water Supplies
c) Wastewater Treatment Capacity
d, e) Solid Waste Services

3.20 WILDFIRE
a) Emergency Response Plans and Emergency
Evacuation Plans
b) Exposure of Project Occupants to Wildfire
Hazards
c) Installation and Maintenance of Infrastructure
d) Risks from Runoff, Post-Fire Slope Instability, or
Drainage Changes

3.21 MANDATORY FINDINGS OF SIGNIFICANCE
a) Findings on Biological and Cultural Resources
b) Findings on Cumulatively Considerable Impacts
c) Findings on Adverse Effects on Human Beings
Significance
Before Mitigation
Measures
NI
NI
NI
NI
LS
LS
NI
PS
LS
LS
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Mitigation Measures
existence of this facility is confirmed, then no construction shall proceed in the vicinity of this facility until project plans and specifications are modified such that this facility would be avoided, relocated, or reconstructed when
construction work resumes.

None required
None required
None required
None required
None required
None required
None required
Mitigation measures in Sections 3.4 and 3.5 above.

None required
None required
1-17
Significance
After Mitigation
Measures
LS
January 2023
EXHIBIT 1 641
TABLE 1-1

SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES Notes: NI= No Impact; LS= Less Than Significant; PS= Potentially Significant Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 1-18 January 2023 EXHIBIT 1 642

2.0 PROJECT DESCRIPTION

2.1 Project Location
The project site is adjacent to and follows the existing sewer line south along Sierra Nevada Street from Worth Street approximately 700 linear feet to the Mormon Slough alignment, then east within the Mormon Slough channel area approximately 1,900 linear feet to near Jefferson Street at Bieghle Alley in the City of Stockton, San Joaquin County, California (Figures 1-1 through 1-4, and 2-1). Additionally, the project would involve possible replacement of an existing maintenance hole east of the proposed alignment.

The project site is shown on the U.S. Geological Survey's Stockton West 7.5-minute quadrangle maps within an unsectioned area of the Campo de los Franceses land grant within the area defined as Township 1 North, Range 6 East, Mt. Diablo Base and Meridian.

The latitude of the project site is approximately 37° 56' 40" North, and the longitude is approximately 121 ° 16' 03" West.

2.2 Project Details
The project proposes the replacement of approximately 2,600 linear feet of existing 24- inch diameter, reinforced concrete sanitary sewer pipeline. The location of specific segments of the project are described in Table 2-1 and shown in Figure 2-2.

Station
1+00 to 8+40
8+40 to 12+00
12+00 to 13+00
13+00 to 19+00
TABLE 2-1

PROJECT DETAILS
Description
Sierra Nevada Street
Parallels Mormon Slough
well outside Slough
channel area
Wilson Way Bridge
Undercrossing
In and near Slough channel
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 2-1 Placement Notes
Trenching through existing
paved public street and
private parking area
Trenching through unpaved
area adjacent to existing
unpaved road
Jacked casing to
accommodate replacement
pipeline
Trenching through unpaved
area, confined at stream
crossmg
January 2023
EXHIBIT 1 643
19+00 to 25+00 Dry slope adjacent to Trenching through unpaved Slough area
25+00 to 27+00 In and near Slough channel Trenching through unpaved area, confined disturbance
area
The project would consist ofreplacement of the existing 24-inch pipeline with a 30- or 36- inch pipeline. The replacement would be located primarily within existing easements or right-of-way. Where construction is located on property not owned by the City, construction will be within existing easements, or an appropriate right to construct will be obtained prior to construction
Construction activity would involve conventional open cut excavation, shoring where needed, removal of the existing pipeline in certain sections of the project, and placement of pipeline bedding, the pipeline and backfill material. Existing ground cover along the alignment would be restored to existing conditions following construction. Depth and grade of the replacement line would vary along the project alignment, ranging from 13.5 feet within Mormon Slough to a maximum of approximately 20 feet at the intersection of Sierra Nevada and Worth Streets.

Existing pipe would be removed in sections where the replacement pipe and existing pipeline alignments are the same or close. Pipeline removal would be required, because the invert elevation of the new pipeline would be below that of the existing pipeline. As currently understood, the existing pipeline would need to be removed along the Sierra Nevada section (Stations 1 +00 to 8+40), from Stations 12+00 to 15+90, and at the Station 16+30 crossing of the existing pipeline alignment.

From Stations approximately 12+00 to 13+00, the replacement pipeline would be located in a casing of diameter 54 to 72 inches, which will be pushed from a jacking pit at Station 12+00 to a receiving pit at Station 13+00; the direction could potentially be reversed. The casing would be placed using the "swallowing" method, where the casing is advanced, and the existing pipe, earth, and other material is removed from inside the casing, after which the replacement pipe would be installed and stabilized within the casing with flowable grout or sand backfill.

Project construction would involve heavy equipment movement within and along the project corridor. The disturbance area is estimated at approximately 40 feet along the majority of the corridor, with narrower corridors in the vicinity of Mormon Slough stream crossings and in the area east of Bieghle Alley. A potential contractor staging area is designated south of the corridor between Stations 16+00 and 19+00.

2.3 Permits, Entitlements, and Approvals
The principal discretionary approval associated with the project would be granted by the City of Stockton City Council as the project proponent. The project would require Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 2-2 January 2023 EXHIBIT 1 644
compliance with City of Stockton storm water requirements, including compliance with the State Water Resources Control Board (SWRCB) Construction General Permit.

The project involves work in and adjacent to Mormon Slough, which requires permits from federal and State agencies with jurisdiction. Required permits would include a Section 404 permit from the U.S. Army Corps of Engineers (Corps), a Section 401 Water Quality Certification from the Regional Water Quality Control Board (RWQCB), and a Lake and Streambed Alteration Agreement from the California Department of Fish and Wildlife (CDFW). Applications for these permits will be filed and processed during and after the public review of the IS/MND.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 2-3 January 2023 EXHIBIT 1 645

PROPOSED AUGMENT

PARCELS
SOURCE: Kjeldsen, Sinnock and Neudeck Figure 2-1

SITE PLAN
EXHIBIT 1 646
onmenta SOURCE: Kjeldsen, Sinnock and Neudeck Figure 2-2

ALIGNMENT PLAN
EXHIBIT 1 647

3.0 ENVIRONMENTAL CHECKLIST FORM

3.1 AESTHETICS
Except as provided in Public Resources Code Section 21099, would the project:
a) Have a substantial adverse effect on a scenic vista? b) Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway?
c) In non-urbanized areas, substantially degrade the existing visual character or quality of public views of the site and its surroundings? (Public views are those that are experienced from publicly accessible vantage points.) If the project is in an urbanized area, would the project conflict with applicable zoning and other regulations governing scenic quality?
d) Create a new source of substantial light or glare which would adversely affect daytime or nighttime views in the area?

NARRATIVE DISCUSSION
Environmental Setting
Less Than
Significant
Potentially with Less Than
Significant Mitigation Significant
Impact Incorporated Impact No Impact
v
v
v
v
The project site is located primarily along an existing storm drainage channel that passes through within an urbanized area of south-central Stockton. Lands immediately along and adjacent to the project alignment are largely vacant of buildings or other improvements.

These are flat to sloping channel bank areas that are intermittently vegetated with trees, shrubs, grasses and ruderal vegetation. The project alignment is located along and crosses portions of the Slough channel that support discontinuous areas of wetland vegetation.

Vegetation along the project alignment is discussed in more detail in Section 3.4 Biological Resources.

Lands paralleling the project alignment outside the channel banks consist primarily of the rear areas of both light and heavy industrial uses that front on nearby streets north and south of the channel. These industrial areas include parking areas and outdoor storage of products, shipping containers and waste materials. These areas do not contain any notable elements of urban design or landscaping or aesthetic value. In the easternmost portion of the project area, there are single-family residences located north of the project along Bieghle Alley, East Jefferson Street, S. Sierra Nevada Street and E. Anderson Street.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-1 January 2023 EXHIBIT 1 648
The open space along Mormon Slough is the most significant visual feature in the project vicinity, due to lack of buildings and the difference in elevation between the channel floor and the adjacent street grade. Although conditions vary, the channel area is occupied by tents and temporary structures and improvements used by the unhoused population of the downtown area. At most times, the channel area is extensively littered with discarded containers and personal belongings.

Lighting at the project site is limited to street lighting along the cross-streets and other streets near the site, together with safety and security lighting associated with adjacent land uses.

California Public Resources Code Section 21099 states that the aesthetic and parking impacts of residential, mixed-use residential, or employment center projects on an infill site within a transit priority area shall not be considered significant. The project is not a residential, mixed-use residential, or employment center project; therefore, it does not meet the criteria of Section 21099.

Environmental Impacts and Mitigation Measures
a) Scenic Vistas.

Scenic vistas have been defined as vantage points with a broad and expansive view of a significant landscape feature, such as a mountain range or coastline. The Stockton General Plan does not designate scenic vistas. However, distant views of the Sierra Nevada mountains, Mt. Diablo and the Coast Range are sometimes available in the Stockton area, but they are usually limited by the built environment. The project would not modify the surrounding built environment and therefore have no effect on distance views. The project would have no impact on scenic vistas. b) Scenic Resources.

The Stockton General Plan identifies open space, agricultural fields, and riparian areas, particularly along the San Joaquin River and the Calaveras River, as significant visual features (City of Stockton 2018a). There are no such features in the project area.

Although the project will require substantial construction disturbance along the proposed alignment, it will not affect any scenic resources as identified in the Stockton General Plan. Upon completion, the project site would be restored to its pre-project condition and result in no net long-term change in appearance of the site.

The California Department of Transportation (Caltrans) list of designated scenic highways under the California Scenic Highway Program has only two officially designated state scenic highways within San Joaquin County: Interstate 5 from the Stanislaus County Line to Interstate 580, and Interstate 580 from Interstate 5 to the Alameda County Line (Caltrans 2017). The project site is not on or near either of the designated Scenic Highways. The Stockton General Plan has not designated any local roadways as scenic. The project would have no impact on scenic resources.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-2 January 2023 EXHIBIT 1 649
c) Visual Character and Quality.

Neither the project alignment nor the predominantly industrial and commercial uses that adjoin the Mormon Slough channel are aesthetically sensitive. The construction contractor would be required to restore the project site to pre-project conditions after work is completed. As a result, the potential aesthetic effects of the project would be temporary, and less than significant. As a result of restoration, the project would not result in any long-term aesthetic change.

Residences at both ends of the project site might be more sensitive to aesthetic change and be subject to some aesthetic impact during construction activities. Construction disturbance would not encroach on the streets adjacent to these homes but would be located entirely within the public right-of-way or easement and of a relatively short duration in this area. Project impacts on visual character and quality would be less than significant.
d) Light and Glare.

The project would not involve the installation of lighting facilities. During the construction phase of the project, some temporary construction lighting may be required in the work area if construction must extend after dark. Short-term impacts on adjacent properties could occur from spillover light and associated glare, but as such lighting would be temporary and work time after dark would be limited (see Section 3.13, Noise).

Potential impacts on adjoining uses would be limited to the vicinity of the existing residential area near the eastern end of the project. The project would replace existing underground facilities and would not include any known features that could produce glare. Project impacts related to light or glare would be less than significant.

3.2 AGRICULTURAL RESOURCES
Would the project:
a) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance, as shown on the maps prepared
pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? b) Conflict with existing zoning for agricultural use, or a Williamson Act contract?
c) Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code Section 12220(g)), timberland (as defined by Public Resources Code Section 4526), or timberland zoned Timberland Production (as defined by Government Code Section 51104(g))?
d) Result in the loss of forest land or conversion of forest land to non-forest use?
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-3
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact No Impact
v'
v'
v'
v'
January 2023
EXHIBIT 1 650
d) Involve other changes in the existing environment that, due to their location or nature, could result in conversion of Farmland to non-agricultural use?

NARRATIVE DISCUSSION
Environmental Setting
The project site is a managed flood control channel within a developed urban area. Land adjacent to the project site is not used for agricultural activities.

The Important Farmland Maps, prepared by the California Department of Conservation as part of the Farmland Mapping and Monitoring Program, designate the viability of lands for farmland use, based on the physical and chemical properties of the soils. The maps categorize farmland, in decreasing order of soil quality, as "Prime Farmland," "Farmland of Statewide Importance," "Unique Farmland," and "Farmland of Local Importance." The 2018 Important Farmland Map of San Joaquin County designates the project site and vicinity as Urban and Built-Up Land (FMMP 2018).

Environmental Impacts and Mitigation Measures
a) Agricultural Land Conversion.

There is no agricultural land or agricultural use in the vicinity of the project site. As noted, the project site vicinity is classified as Urban and Built-Up Land. There is no Farmland as defined in CEQA Guidelines Appendix Gin the vicinity. The project would not convert Farmland and would have no impact on this issue. b) Agricultural Zoning and Williamson Act.

The project site vicinity is zoned for urban uses and not for any agricultural use. The Williamson Act preserves agricultural land by means of a contract between the landowner and local government that keeps the contracted land in agricultural use in exchange for a lower property tax assessment. As there is no agricultural land in the vicinity, there are no lands under a Williamson Act contract. The project would have no impact on agricultural zoning or Williamson Act contracts. c, d) Forest Lands.

The project is in a developed urban area; there are no forest lands on the project site or in the vicinity. No land in the project vicinity is zoned as forest land or timberland. The project would have no impact on forest lands.
e) Indirect Conversion of Farmland or Forest Land.

The project site is surrounded by urban development that is fully served with existing street and utility infrastructure. There is no agricultural land in the vicinity. Given the urbanized nature of the project site and vicinity, the project would not add infrastructure Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-4 January 2023 EXHIBIT 1 651
or undertake any other activity that would facilitate the conversion of agricultural land to non-agricultural uses. The project would have no impact on indirect conversion of agricultural lands. As there are no forest lands in the vicinity, the project also would have no impact on indirect conversion of forest lands.

3.3 AIR QUALITY
Where available, the significance criteria established by the applicable air quality management district or air pollutant control district may be relied upon to make the following determinations. Would the project:
a) Conflict with or obstruct implementation of the applicable Air Quality Attainment Plan?
b) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is nonattainment under an applicable federal or state ambient air quality standard?
c) Expose sensitive receptors to substantial pollutant
concentrations?
d) Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact
V
V
V
V
No Impact
The project site is within the San Joaquin Valley Air Basin. The San Joaquin Valley Air Pollution Control District (SN APCD), which includes San Joaquin County, has jurisdiction over most air quality matters in the Air Basin; vehicle emissions are the responsibility of the California Air Resources Board (ARB). The SN APCD is tasked with developing and implementing plans, programs and regulations that would enable the Air Basin to attain ambient air quality standards set under both the federal and California Clean Air Acts. Under their respective Clean Air Acts, both the State of California and the federal government have established ambient air quality standards for six criteria air pollutants: ozone, particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, and lead. California has four additional criteria pollutants under its Clean Air Act; none of these would be generated in the project area.

Table 3-1 shows the current attainment status of the Air Basin relative to the federal and State ambient air quality standards for criteria pollutants. Except for ozone and particulate matter, the Air Basin is in attainment of, or unclassified for, all federal and State ambient air quality standards. Ozone is not emitted directly into the air but is formed when reactive organic gases (ROG) and nitrogen oxides (NOx) react in the Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-5 January 2023 EXHIBIT 1 652
atmosphere in the presence of sunlight. The SN APCD currently has a 2007 Ozone Plan and a 2013 Plan for the Revoked 1-Hour Ozone Standard for the Air Basin to attain federal ambient air quality standards for ozone.

TABLE3-1

SAN JOAQUIN VALLEY AIR BASIN ATTAINMENT STATUS
Criteria Pollutant
Ozone - One hour
Designation/Classification
Federal Primary Standards State Standards
No Federal Standard Nonattainment/Severe
Ozone - Eight hour Nonattainment/Extreme Nonattainment
PM10 Attainment Nonattainment
PM2.s Nonattainment Nonattainment
Carbon Monoxide (CO) Attainment/Unclassified Attainment/Unclassified Nitrogen Dioxide (NOx) Attainment/Unclassified Attainment Sulfur Dioxide (SOx) Attainment/Unclassified Attainment Lead No Designation/Classification Attainment
Hydrogen Sulfide No Federal Standard Unclassified
Sulfates No Federal Standard Attainment
Visibility Reducing Particles No Federal Standard Unclassified Vinyl Chloride No Federal Standard Attainment
Source: SN APCD 2020.

Particulate matter is a mixture of solid and liquid particles suspended in air, including dust, pollen, soot, smoke, and liquid droplets. In San Joaquin County, particulate matter is generated by a mix of rural and urban sources, including agricultural operations, industrial emissions, dust suspended by vehicle traffic, and secondary aerosols formed by reactions in the atmosphere. Two types of particulate matter are of concern: particulate matter 10 micrometers or less in diameter (PM10), and particulate matter 2.5 micrometers or less in diameter (PM2.s). The SN APCD currently has a 2015 PM2.s Plan for the 1997 federal PM2.s standard, a 2012 PM2.s Plan for the 2006 federal PM2.s standard, a 2016 Moderate Area Plan for the 2012 federal PM2.s standard, and a 2007 PM10 Maintenance Plan to maintain the Air Basin's attainment status of the federal PM10 standard.

In addition to the criteria pollutants, the California Air Resources Board has identified other air pollutants as toxic air contaminants (TACs) - pollutants that are carcinogenic Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-6 January 2023 EXHIBIT 1 653
(i.e., cause cancer) or that may cause other adverse short-term or long-term health effects.

Diesel particulate matter, considered a carcinogen, is the most common TAC, as it is a product of combustion in diesel engines. Other TACs are less common and are typically associated with industrial operations.

As noted, the SN APCD is tasked with implementing regulations designed to attain ambient air quality standards. SJV APCD regulations that are potentially applicable to the project are summarized below.

Regulation VIII (Fugitive Dust P M10 Prohibitions)
Rules 8011-8081 are designed to reduce PM10 emissions (predominantly dust/dirt) generated by human activity, including construction and demolition activities, road construction, bulk materials storage, paved and unpaved roads, carryout and track out, landfill operations, etc.

Rule 4101 (Visible Emissions)
This rule prohibits emissions of visible air contaminants to the atmosphere and applies to any source operation that emits or may emit air contaminants.

Environmental Impacts and Mitigation Measures
In 2015, the SN APCD adopted a revised Guide for Assessing and Mitigating Air Quality Impacts. The Guide defines an analysis methodology, thresholds of significance, and mitigation measures for the assessment of air quality impacts for projects within SN APCD's jurisdiction (SN APCD 2015). Table 3-2 shows the CEQA thresholds for significance for pollutant emissions within the SJV APCD. The significance thresholds apply to both construction emissions and operational emissions.

Pollutant
ROG
co
SOx
PM10
TABLE 3-2

SN APCD SIGNIFICANCE THRESHOLDS

AND PROJECT CONSTRUCTION EMISSIONS
SJV APCD Significance Total Construction
Threshold Emissions (tons)
10 0.02
10 0.21
100 0.19
27 0.00
15 0.01
15 0.01
Sources: Road Construction Emissions Model ver. 9.0.0, SN APCD 2015.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-7 January 2023 EXHIBIT 1 654
a) Air Quality Plan Consistency.

The project's construction emissions were estimated usmg the Road Construction Emissions Model (RCEM), assuming a three-month continuous construction period.

Originally developed to estimate emissions generated by road construction projects, the RCEM has been subsequently modified to be applicable to all projects that are linear in character. The RCEM results for the project are available in Appendix A of this IS/MND, and a summary of the results is provided in Table 3-2.

As indicated by Table 3-2, none of the project construction em1ss10ns exceed the SN APCD significance thresholds. As the significance thresholds were established in part to ensure consistency with the objectives of the air quality plans adopted by the SN APCD, project construction emissions would therefore be consistent with these plans.

The project would not generate any pollutant emissions once construction work is completed.

While project construction emissions would not be significant, the project would still be required to comply with applicable SJV APCD rules and regulations, which would further reduce potential air quality impacts. As noted, SN APCD Regulation VIII contains measures to reduce fugitive dust emissions during construction. Dust control provisions are routinely included in site improvement plans and specifications, along with construction contracts. Implementation of these actions would further reduce project emission impacts already considered less than significant. b) Cumulative Emissions.

As noted in a) above, project em1ss10ns would not exceed SJV APCD significance thresholds. Future attainment of federal and State ambient air quality standards is a function of successful implementation of the SN APCD's attainment plans.

Consequently, the application of significance thresholds for criteria pollutants is relevant to the determination of whether a project's individual emissions would have a cumulatively significant impact on air quality. Pursuant to the SN APCD's guidance, if project-specific emissions would be less than the thresholds of significance for criteria pollutants, the project would not be expected to result in a cumulatively considerable net increase of any criteria pollutant for which the SJV APCD is in nonattainment under applicable federal or State ambient air quality standards. As project emissions would not exceed SN APCD significance thresholds, the cumulative impacts of these emissions would be less than significant.
c) Exposure of Sensitive Receptors.
"Sensitive receptors" refer to those segments of the population most susceptible to poor air quality (i.e., children, the elderly, and those with pre-existing serious health problems affected by air quality). Land uses where sensitive individuals are most likely to spend time also may be called sensitive receptors; these include schools and schoolyards, parks and playgrounds, daycare centers, nursing homes, hospitals, and residential communities (SN APCD 2015). Prolonged exposure to pollutants in sufficient concentrations could have adverse health impacts on nearby sensitive receptors.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-8 January 2023 EXHIBIT 1 655
There are a few residences close to the eastern and western ends of the project site.

Project emissions in these areas would be temporary, being generated only by construction activities in the immediate vicinity of the residences. There would be no emissions generated by project operations. Therefore, nearby residences would not be subject to prolonged exposure to pollutants. Project impacts on sensitive receptors would be less than significant.
d) Odors and Other Emissions.

The project is not expected to generate significant odors, other than from construction activities. Other emissions may include diesel particulate matter emissions from diesel engines and equipment. Diesel particulate matter is considered a TAC. However, such emissions would be localized and would dissipate rapidly outside the project site. As noted above, the nearest sensitive receptors would be adjacent residences, which would be exposed temporarily to construction emissions. Project impacts related to odors and other emissions would be less than significant.

3.4 BIOLOGICAL RESOURCES
Would the project:
a) Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special-status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service?
b) Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service?
c) Have a substantial adverse effect on state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means?
d) Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with
established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites?
e) Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance?
f) Conflict with the provisions of an adopted Habitat
Conservation Plan, Natural Conservation Community Plan, or other approved local, regional, or state habitat
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-9
Less Than
Significant
with
Mitigation
Incorporated
v'
v'
v'
v'
Less Than
Significant
Impact
v'
No Impact
v'
January 2023
EXHIBIT 1 656
conservation plan?

NARRATIVE DISCUSSION
Information for this section is provided by a Biological Resources Assessment prepared by Moore Biological Consultants, unless otherwise cited. Appendix B contains a copy of this report. The preparation of the report involved reviewing the California Natural Diversity Database (CNDDB), managed by the California Department of Fish and Wildlife (CDFW), and the IPaC database, managed by the U.S. Fish and Wildlife Service (USFWS). It also involved a field survey of the project site conducted on April 9, 2021 to document vegetation communities, potential jurisdictional Waters of the U.S., and potentially suitable habitat for special-status species.

Environmental Setting
The project site is primarily a swath of land within the Mormon Slough channel, extending generally east to west through urbanized Stockton. Mormon Slough flows east to west through the east part of the project site in a relatively narrow well defined lowflow channel. The inlet to a large box culvert is located approximately 320 feet east of the Wilson Way bridge. West of the culvert inlet, Mormon Slough flows are conveyed underground for several miles through downtown Stockton. To the west of the Wilson Way bridge, there is no defined low-flow channel and no evidence of recent surface flows. The project site contains heaps of trash and debris from dumping and homeless encampments, several of which are located within the footprint of construction.

Surrounding land uses are primarily residential commercial, and industrial. This portion of Stockton is heavily developed and lands to the north of the site are primarily residential and the lands to the south are primarily industrial.

Existing Vegetation
Portions of Mormon Slough were completely dry during project site visits in 2021, while other areas contained small pockets of water supporting patches of emergent wetland vegetation and other hydrophytes. Adjacent areas are sparsely vegetated with highly disturbed ruderal grasses and weeds, consisting almost entirely of non-native species.

Oats, soft chess brome, rip gut brome, foxtail barley, and perennial rye grass are some of the most common grasses in the ruderal grassland vegetation found within the site. Other grassland species, such as yellow starthistle, bull thistle, morning glory, common sunflower, prickly lettuce, Canadian horseweed, and filaree (Erodium spp.) are intermixed with the grasses. There are patches of giant reed and tree-of-heaven within the project site, primarily located along the north fence line in the east part of the site.

Immediately upstream of the box culvert inlet is a low area where water is ponded and is vegetated with common tule and lesser amounts of cattails. Some Mormon Slough flows trickle around the north edge of the box culvert inlet and flow west into a low area between the box culvert inlet and the Wilson Way bridge. This low area supports a dense stand of emergent wetland vegetation, with common tule being the dominant species. To Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-10 January 2023 EXHIBIT 1 657
the east of the emergent wetlands, Mormon Slough is best described as an ephemeral creek, conveying winter rains and summer nuisance water from agricultural lands to the east. Vegetation within and along the low-flow channel includes tall flat sedge and curly dock.

There are also some small seedlings and saplings such as willows, black walnut, and small cottonwoods along the edges of the creek. There are only a few mature trees on the site, including a valley oak and a relatively large gum tree in the east part of the project site. Other trees near the site are primarily ornamental species associated with residences nearby. No blue elderberry shrubs were observed within or adjacent to the project site.

Existing Wildlife
A variety of common bird species were observed in the site. American crow, black phoebe, mourning dove, Brewer's blackbird, and house finch are representative bird species observed on and near the site. All of these are species commonly found in urban areas in the greater project vicinity. There are a few individual trees in and adjacent to or near the project site that are suitable for nesting raptors, including Swainson's hawks.

A variety of mammals are likely to occur in the project site. While no mammals were observed in the site during the recent survey; several California ground squirrel burrows were observed. Species such as raccoon, coyote, black-tailed hare, striped skunk, and Virginia opossum are expected to occur in the greater project vicinity and may wander through the site on occasion. A number of species of small rodents, including mice and voles, also likely occur. Based on habitat types present, only a few amphibian and reptile species are expected to use habitats in the site. Although none were observed, common species such as western fence lizard, Pacific chorus frog, gopher snake, common king snake, and common garter snake are expected to occur at the site.

Wetlands and Waters of the U.S.

Waters of the U.S., including wetlands, are broadly defined under 33 Code of Federal Regulations (CFR) 328 to include navigable waterways, their tributaries, and adjacent wetlands. State and federal agencies regulate these habitats, and Section 404 of the Clean Water Act requires that a permit be secured prior to the discharge of dredged or fill materials into any waters of the U.S., including wetlands. Some jurisdictional waters of the U.S. also fall under the jurisdiction of CDFW and/or the California Regional Water Quality Control Board (RWQCB). Jurisdictional wetlands and Waters of the U.S. include, but are not limited to, perennial and intermittent creeks and drainages, lakes, seeps, and springs; emergent marshes; riparian wetlands; and seasonal wetlands.

There are approximately 0.280 acres of intermittent creek and 0.165 acres of emergent wetlands on the site that are potential jurisdictional wetlands or Waters of the U.S. These features are associated with Mormon Slough. Mormon Slough flows into the site from the east and continues west in a relatively narrow channel to the inlet to a large box culvert.

This section of Mormon Slough is best described as an ephemeral creek. The emergent wetlands are near the culvert inlet and in a low area between the box culvert inlet and the Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-11 January 2023 EXHIBIT 1 658
Wilson Way bridge. No other areas meeting the technical and regulatory criteria of jurisdictional Waters of the U.S. or wetlands were observed on the site.

Habitat Conservation Plans
The City participates in the San Joaquin County Multi-Species Open Space and Habitat Conservation Plan (SJMSCP). The SJMSCP, managed by the San Joaquin Council of Governments (SJCOG), is a comprehensive program for assessing and mitigating the biological impacts of converting open space or biologically sensitive lands to urban development in San Joaquin County. It provides three compensation methods:
preservation of existing sensitive lands, creation of new comparable habitat on the project site, or payment of fees that would be used to secure preserve lands outside the project site. It also identifies and requires covered projects to abide by Incidental Take Minimization Measures, which are protection measures that avoid direct impacts of development on special-status species (SJCOG 2000). Mormon Slough is in the SJMSCP Category D, Natural Lands Habitat Pay Zone B. Lands beyond Mormon Slough are in the Category A Zone, which is exempt from fee payments.

Environmental Impacts and Mitigation Measures
a) Effects on Special-Status Species.

Special-status species include plant and/or wildlife species that are legally protected under the federal Endangered Species Act, the California Endangered Species Act, or other laws and regulations, or are considered rare enough by the scientific community and trustee agencies to warrant special consideration. These include plant species identified on Lists lA, 1B and 2 in the Inventory of Rare and Endangered Vascular Plants of California, maintained by the California Native Plant Society.

Table 3 of the biological resource report (Appendix B) provides a summary of the listing status and habitat requirements of special-status plant and wildlife species that have been documented in the greater project vicinity or for which there is potentially suitable habitat in the project area. Table 3 indicates 12 special-status plant species and 17 special-status wildlife species could potentially occur on the project site. Mormon Slough is not considered to provide suitable habitat for all the special-status plant species listed in Table 3.

The project site and surrounding areas may have provided habitat for the special-status wildlife species listed in Table 3 at some time in the past. However, development, and construction and maintenance of roads and utilities, have substantially modified natural habitats within the greater project vicinity, including the project site. Of the special-status wildlife species identified, Swainson's hawk, burrowing owl, tricolored blackbird, and western pond turtle are the only species with potential to occur in the project site on more than a transitory or very occasional basis.
• Swainson 's Hawk. Swainson's hawk is listed as a threatened species under the California Endangered Species Act. A migratory bird, Swainson's hawks prefer nesting sites that provide sweeping views of nearby foraging grounds consisting Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-12 January 2023 EXHIBIT 1 659
of grasslands, irrigated pasture, hay, and wheat crops. The Migratory Bird Treaty Act and the California Fish and Game Code protect Swainson's hawks yearround, as well as their nests during the nesting season (March 1 through September 15). No Swainson's hawks were observed in the site during the recent survey, which was conducted near the beginning of the nesting season of this species. The CNDDB contains several records of nesting Swainson's hawk in the greater project vicinity, including several within a mile of the project site. There are a few suitable nest trees in the site and several large trees in close proximity to the site.
• Burrowing Owl. Burrowing owls have been designated a State Species of Concern. They are year-long residents that inhabit a variety of grasslands as well as scrub lands that have a low density of trees and shrubs with low growing vegetation; burrowing owls that nest in the Central Valley may winter elsewhere.

The primary habitat requirement of the burrowing owl is small mammal burrows for nesting, usually in abandoned ground squirrel burrows. The Migratory Bird Treaty Act and California Fish and Game Code protect burrowing owls yearround, as well as their nests during the nesting season (February 1 through August 31). No burrowing owls were observed on the project site during the recent survey. Only a few ground squirrel burrows were observed, none of which had evidence of past or current burrowing owl occupancy. This species may utilize habitats in the site for nesting in the future if burrow habitat is available • Tricolored blackbird. Tricolored blackbird is listed as a threatened species under the California Endangered Species Act. Tricolored blackbirds are colonial nesters requiring very dense stands of emergent wetland vegetation and/or dense thickets of wild rose or blackberries for nesting. Preferred nesting substrates are expansive stands of cattails and tules adjacent to open water. Tricolored blackbirds were not observed on the site during the field survey. Although the patch of tules and cattails identified on the project site is small and surrounded by development, tricolored blackbirds could potentially nest in that area. • Western Pond Turtle. The western pond turtle has been designated a State Species of Concern. Western pond turtles are associated with permanent or nearly permanent bodies of water with adequate basking sites such as logs, rocks, or open mud banks. Pond turtles construct nests in sandy banks along slow-moving streams and ponds in the spring and the young usually hatch in two to three months. There are no records of western pond turtle in the CNDDB search area, and Mormon Slough is ephemeral and is dry much of the year. However, western pond turtles are known to occur in similar drainages in the general region and could potentially swim and bask within Mormon Slough if adequate aquatic conditions are met. Also, although the grasslands surrounding the slough are highly disturbed, this species could potentially nest in upland habitats near the creek.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-13 January 2023 EXHIBIT 1 660
The special-status birds could be disturbed by noise if they nested in or near the project site during construction. Western pond turtle could be disturbed if it is present within Mormon Slough or nested adjacent to the slough during project construction. These would be potentially significant impacts.

As noted, the project site is subject to the SJMSCP. Standard take avoidance measures outlined in the SJMSCP for nesting Swainson's hawks and burrowing owl would be required. These would include pre-construction surveys for nesting Swainson' s hawks within 0.5 miles of the site for construction activities between March 1 and September 15 and pre-construction surveys for nesting burrowing owls within 250 feet of the site for construction activities between February 1 through August 31. If active nests are found, temporal restrictions on construction that are specified in the SJMSCP will be required.

Standard take avoidance measures outlined in the SJMSCP for nesting tricolored blackbirds may be required. These would include pre-construction surveys for construction activities during the nesting season. If active nests are found, a 500-foot construction setback from the nests would be required until nesting is complete. Although there is a lack of suitable habitat for western pond turtle, standard Take Avoidance measures for this species as outlined in the SJMSCP, primarily consisting of preconstruction surveys, may be required.

For CEQA purposes, a project that complies with the SJMSCP can be deemed to result in biological resource impacts that are less than significant. Implementation of the mitigation measure below would reduce potential impacts on special-status species to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

B10-1: The City shall apply to the San Joaquin Council of Governments (SJCOG) for coverage under the San Joaquin County Multi-Species Open Space and Habitat Conservation Plan (SJMSCP). The project site shall be inspected by the SJMSCP biologist, who will recommend which Incidental Take Minimization Measures (ITMMs) set forth in the SJMSCP shall be implemented. The project applicant shall pay the required SJMSCP fee, if any, and be responsible for the implementation of the specified ITMMs.

Significance After Mitigation: Less than significant
b) Riparian and Other Sensitive Habitats.

The project site is adjacent to Mormon Slough, a natural stream which could potentially support a well-developed riparian area. However, as noted, the biological resource assessment indicated that the project site is within an area covered mainly by grasses and weeds. There are few mature trees on the project site. No other sensitive habitats, such as vernal pools and blue elderberry shrubs, were identified. The biological resource assessment stated that on-site habitats are highly disturbed and biologically Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-14 January 2023 EXHIBIT 1 661
unremarkable. Project impacts on riparian and other sensitive habitats would be less than significant.
c) State and Federally Protected Wetlands.

As noted, the biological resources assessment identified approximately 0.280 acres of intermittent creek and 0.165 acres of emergent wetlands on the project site that are potential jurisdictional wetlands or Waters of the U.S. Construction of the project is anticipated to involve 0.11 acres of temporary impacts to jurisdictional Waters of the U.S. and wetlands.

A Section 404 permit, issued by the U.S. Army Corps of Engineers, would be required prior to the placement of any fill material ( e.g., culverts, fill dirt, rock) in Mormon Slough. As the estimated fill in Waters of the U.S. is expected to be 0.11 acres, the work would likely be authorized under a Nationwide Permit rather than a regular Section 404 permit. Permits would also be required from CDFW (Section 1600 Streambed Alteration Agreement), the RWQCB (Clean Water Act Section 401 Water Quality Certification), and the Central Valley Flood Protection Board (encroachment permit). These requirements are specified in the mitigation presented below. Implementation of this mitigation measure would reduce project impacts on wetlands or Waters of the United States to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

BIO-2: Prior to the start of construction work, the City shall obtain an appropriate permit from the U.S. Army Corps of Engineers (Corps). As part of the permit process, the Corps shall verify delineations identifying jurisdictional Waters of the U.S. and wetlands. The delineations shall be used to determine if any project work will encroach upon any jurisdictional water, thereby necessitating an appropriate permit.

Depending on the Corps permit issued, the City shall also apply for a Section 401 Water Quality Certification from the Central Valley Regional Water Quality Control Board.

BIO-3: Prior to the start of construction work, the City shall obtain any necessary permits from the California Department of Fish and Wildlife and the Central Valley Flood Protection Board. The City shall comply with all conditions attached to any required permit.

Significance After Mitigation: Less than significant
d) Fish and Wildlife Movement.

The biological resources assessment identified most of Mormon Slough along the project site as an ephemeral stream, containing water only from winter rains and summer water from agricultural lands to the east. Because of this, Mormon Slough does not provide suitable aquatic habitat for fish and therefore would not be considered a fish migratory Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-15 January 2023 EXHIBIT 1 662
corridor. However, the biological resources assessment stated that trees, shrubs, and grasslands in and near the project site could be used by birds protected by the Migratory Bird Treaty Act and/or Fish and Game Code of California, such as white-tailed kite, loggerhead shrike, and red-winged blackbird. While none of these species were found on the project site, The biological assessment noted that there are several trees in the project vicinity that are suitable for nesting raptors and other protected bird species.

Participation in the SJMSCP, as required by Mitigation Measure BIO-1, would require implementation of standard take measures for nesting birds within 14 days of the start of construction. If active nests are found, then restrictions on construction specified in the SJMSCP would be required. Implementation of Mitigation Measure BIO-1 would reduce impacts on migratory birds and their nests to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures: Implementation of Mitigation Measure BIO-1.

Significance After Mitigation: Less than significant
e) Local Biological Resource Requirements.

Stockton Municipal Code Chapter 16.130 addresses Heritage Trees, which are any valley oak, coast live oak, and interior live oak tree with a trunk diameter of 16 inches or more, measured at 24 inches above actual grade. Except for an emergency, removal of any Heritage Tree requires a City permit, regardless of location on a property or condition of the tree(s). While the biological resources assessment identified a valley oak at the east part of the project site, it did not indicate that the project would affect this oak. Therefore, Stockton Municipal Code Chapter 16.130 would not apply to this project. No other biological resource requirements would apply to this project. The project would have no impact related to local biological resource requirements. f) Conflict with Habitat Conservation Plans.

As noted, the City would participate in the SJMSCP, as required by Mitigation Measure BIO-1. The project would comply with applicable provisions and measures of the SJMSCP. No other habitat conservation plans apply to the project site. Project impacts related to habitat conservation plans would be less than significant with mitigation.

Level of Significance: Potentially significant
Mitigation Measures: Implementation of Mitigation Measure BIO-1.

Significance After Mitigation: Less than significant
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-16 January 2023 EXHIBIT 1 663

3.5 CULTURAL RESOURCES
Would the project:
a) Cause a substantial adverse change in the significance of a historical resource pursuant to Section 15064.5?
b) Cause a substantial adverse change in the significance of a unique archaeological resource pursuant to Section 15064.5? c) Disturb any human remains, including those interred
outside of formal cemeteries?

NARRATIVE DISCUSSION
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
V
Less Than
Significant
Impact
V
No Impact
V
Information for this section is provided by a Cultural Resources Inventory and Evaluation Report prepared by Solano Archaeological Services, unless otherwise cited. Appendix C contains a copy of this report. The report was based on background research conducted through the Central California Information Center of the California Historical Resources Information System, additional archival research by Solano Archaeological Services, and a field survey of the project site on April 9, 2021.

Environmental Setting
Stockton has more than 1,900 recorded cultural resources, ranging from prehistoric habitation sites to mid-20th century developments (City of Stockton 2018b). The project site is generally considered to be in Northern Valley Yokuts territory. Section 3.18, Tribal Cultural Resources, discusses the Y okuts in more detail.

Euro-American contact began with infrequent excursions by Spanish explorers traveling through the Sacramento-San Joaquin Valleys in the late 1700s to early 1800s. The Spanish, and later Mexican, governments of California tried to encourage settlement by awarding large plots of land, called ranchos, to prominent men. The project site was part of one such grant, Charles M. Weber's El Campo de los Franceses. Weber founded the City of Stockton in 1850, and the City incorporated that same year. With the Gold Rush, the town grew rapidly. As the Gold Rush boom eventually receded, further growth was spurred with the establishment of the railroads. The San Francisco & San Joaquin Valley Railroad Company began construction from Stockton to Bakersfield in 1895. Its tracks are located just to the north and east of the project site and are presently operated by the Burlington Northern Santa Fe Railroad. Stockton's growth continued throughout the 20th century with the city becoming a rail, water, and highway transportation hub linking the Central Valley's agricultural fields and other industries to national and world markets.

The Stockton General Plan EIR identified City-designated cultural resources but none on the project site. The records search by the Central California Information Center indicated that no cultural resources have been documented within the project site, Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-17 January 2023 EXHIBIT 1 664
although it did find the presence of 14 known historic-era sites and features within a halfmile search area. The field survey found no historic-era archaeological sites, features, or artifacts within or adjacent to the project site.

Stockton Municipal Code Section 16.36.050 states that if a historical or archaeological resource or human remains may be impacted by a development project requiring a discretionary land use permit, the Secretary of the Cultural Heritage Board shall be notified, any survey needed to determine the significance of the resource shall be conducted, and the proper environmental documents shall be prepared. In addition:

A. Historical Resources. Resources that have been identified as a landmark or part of a historic district in compliance with Chapter 16.220 (Cultural Resources) shall require a certificate of appropriateness (Section 16.220.060) if any exterior changes to the resource are proposed.

B. Archaeological Resources. In the event that archaeological resources are discovered during any construction, construction activities shall cease, and the Community Development Department (Department) shall be notified so that the extent and location of discovered materials may be recorded by a qualified archaeologist, and disposition of artifacts may occur in compliance with State and federal law.

C. Human Remains. In the event human remains are discovered during any construction, construction activities shall cease, and the County Coroner and Director shall be notified immediately in compliance with CEQA Guidelines 15064.5 ( d). A qualified archaeologist shall be contacted to evaluate the situation. If the human remains are of Native American origin, the Coroner shall notify the NAHC [Native American Heritage Commission] within 24 hours of this identification. The NAHC will identify the most likely descendent of the Native American to inspect the site and provide recommendations for the proper treatment of the remains and associated grave goods.

Environmental Impacts and Mitigation Measures
a) Historical Resources.

As noted above, the records search by the Central California Information Center indicated that no cultural resources have been documented within the project site. The field survey found no historic-era archaeological sites, features, or artifacts within or adjacent to the project site. Based on these results, the project would have no impact on historical resources.
b) Archaeological Resources.

The Central California Information Center search found no record of any archaeological resources on the project site. The field survey likewise found no prehistoric-era archaeological sites, features, or artifacts within or adjacent to the project site. Given these results, the Solano Archaeological Services report concluded that the project site Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-18 January 2023 EXHIBIT 1 665
has only a low-moderate level of sensitivity for encountering traces of early Native American habitation, activities, and human interments.

However, it is possible that project construction could encounter archaeological materials that not been previously discovered. Procedures to address archaeological discoveries if they should occur during construction are set forth in the mitigation measure below, consistent with Stockton Municipal Code Section 16.36.050. Implementation of this mitigation measure would reduce cultural resource impacts to a level that would be less than significant. Refer to Section 3.18, Tribal Cultural Resources, for an analysis of potential project impacts on tribal cultural resources.

Level of Significance: Potentially significant
Mitigation Measures:

CUL T-1 : If any subsurface archaeological resources are encountered during construction, all construction activities within a 50-foot radius of the encounter shall be immediately halted until a qualified archaeologist can examine these materials, initially evaluate their significance and, if potentially significant, recommend measures on the disposition of the resource. Recommended measures could include, but are not limited to, 1) preservation in place, or 2) excavation, recovery, and curation by qualified professionals. The Public Works Department shall be notified, and the contractor shall be responsible for retaining qualified professionals, implementing recommended mitigation measures, and documenting mitigation efforts in a written report to the Public Works Department, consistent with the requirements of the CEQA Guidelines.

Significance After Mitigation: Less than significant
c) Human Burials.

As noted in b) above, the project site has only a low-moderate level of sensitivity for exhibiting traces of early Native American human interments. However, it is possible that human remains, specifically those of Native American origin, could be encountered during project construction.

CEQA Guidelines Section 15064( e) sets forth procedures to be followed should any human remains be uncovered, with special requirements for burials determined to be Native American. Also, Stockton Municipal Code Section 16.36.050 has provisions related to the discovery and disposition of human remains. Compliance with these regulations would reduce impacts related to human burials to a level that would be less than significant. Refer to Section 3 .18, Tribal Cultural Resources, for further discussion of potential impacts on tribal cultural resources, including Native American burials.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-19 January 2023 EXHIBIT 1 666

3.6 ENERGY
Would the project:
a) Result in potentially significant environmental impacts due to wasteful, inefficient, or unnecessary consumption of energy resources during project construction or operation? b) Conflict with or obstruct a state or local plan for
renewable energy or energy efficiency?

NARRATIVE DISCUSSION
Environmental Setting
Less Than
Significant
Potentially with Less Than
Significant Mitigation Significant
Impact Incorporated Impact No Impact
../
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Electricity is a major energy source for residences and businesses in California. In San Joaquin County, based upon the most recent information available, electricity consumption in 2019 totaled approximately 5,583 million kilowatt-hours, of which approximately 1,893 million kilowatt-hours were consumed by residential uses and the remainder by non-residential uses (CEC 2021a). In 2019, natural gas consumption in San Joaquin County totaled approximately 259 million therms, of which approximately 89 million therms were consumed by residential uses and the remainder by non-residential uses (CEC 2021 b ). Motor vehicle use also accounts for substantial energy usage. The SJCOG estimated countywide daily VMT was 17,868,785 miles in 2015, which led to the consumption of approximately 511 million gallons of gasoline and diesel fuel (SJCOG 2018).

Environmental Impacts and Mitigation Measures
a) Project Energy Consumption.

Project construction would involve fuel consumption and use of other non-renewable resources. Construction equipment for such improvements typically consumes diesel fuel or gasoline. The same fuels typically are used for vehicles that transport equipment and workers to and from a construction site. Construction-related fuel consumption would, however, be finite, short-term, and consistent with construction activities of a similar character. This energy use would not be considered wasteful, inefficient or unnecessary.

Electricity may be used for equipment operation during construction activities. It is also expected that more electrical construction equipment would be used in the future, as it would generate fewer air pollutant emissions. This electrical consumption would be consistent with construction activities of a similar character; therefore, the use of electricity in construction activities would not be considered wasteful, inefficient, or unnecessary, especially since fossil fuel consumption would be reduced.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-20 January 2023 EXHIBIT 1 667
Project operations are expected to use little to no energy, mostly limited to fuels consumed by vehicles used to infrequently inspect the site. Overall, the project is not expected to consume energy in a manner considered wasteful, inefficient, or unnecessary.

Project impacts related to energy consumption would be less than significant. b) Consistency with Energy Plans.

The City does not have adopted plans specifically for renewable energy or energy efficiency. As discussed in a) above, the project is not expected to lead to wasteful, inefficient, or unnecessary consumption of energy. The project would have no impact related to energy plans.

3. 7 GEOLOGY AND SOILS
Would the project:
a) Directly or indirectly cause potential substantial adverse effects, including the risk ofloss, injury, or death involving:
i) Rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning
Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? (Refer to Division of Mines and Geology Special Publication 42.)
ii) Strong seismic ground shaking?
iii) Seismic-related ground failure, including
liquefaction?
iv) Landslides?
b) Result in substantial soil erosion or the loss of topsoil? c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse?
d) Be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial direct or indirect risks to life or property?
e) Have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of
wastewater?
f) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature?
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
v
3-21
Less Than
Significant
Impact
v
v
v
v
v
No Impact
v
v
v
January 2023
EXHIBIT 1 668

NARRATIVE DISCUSSION
Environmental Setting
The project site in the San Joaquin Valley in central California near the Sacramento-San Joaquin River Delta. The San Joaquin Valley is filled with thick sedimentary rock sequences that were deposited as much as 130 million years ago. The sediments that form the Valley floor were derived largely from erosion of the Sierra Nevada. The Geologic Map of the San Francisco-San Jose Quadrangle designates the underlying geology of the project site as the Modesto Formation (Wagner et al. 1991). The Modesto Formation consists primarily of sand, silt, and clay seams deposited by rivers, and it ranges in depth from 10 to 200 feet (DWR 2014).

The general topography of the project vicinity is essentially flat. The project site itself includes steeper banks that transition from the higher elevation lands down to the Mormon Slough channel. Custom soil surveys downloaded from the Natural Resources Conservation Service website indicates there are two soil types underlying the project site (SCS 1992; NRCS 2020):
• 181, Jacktone-Urban land complex, 0 to 2 percent slopes. This nearly level unit, approximately 50 percent Jacktone clay and 35 percent Urban land, is in basins.

Jacktone clay is moderately deep to a hardpan and is poorly drained. Permeability and runoff of Jacktone clay are slow, and the water erosion hazard is slight. The shrink-swell potential is high. The soil material under Urban land is similar to that of Jacktone clay.
• 280, Yellowlark gravelly loam, 2 to 5 percent slopes. This moderately welldrained, nearly level soil is on stream terraces. The soil is deep to a hardpan.

Permeability is moderately slow in the upper part and very slow near the hardpan.

Runoff is very slow, and the water erosion hazard is slight. The shrink-swell potential ranges from low to high, depending on soil depth.

There are no active or potentially active faults in the Stockton vicinity. The Stockton Fault is a south-dipping reverse fault that trends east-west across the Stockton area, but it has not been classified as an active fault by the California Geological Survey. The nearest active fault is the Greenville Fault, approximately 22 miles west-southwest of Stockton (City of Stockton 2018b). Portions of the Concord-Green Valley and Hayward fault zones, 35 and 50 miles west of Stockton, and the Calaveras fault zone, approximately 40 miles southwest of Stockton, have also been rated as active within the last 200 years. The project site, along with the rest of San Joaquin County, is subject to seismic shaking from these fault zones, as well as the San Andreas Fault farther to the west (San Joaquin County 2016).

Paleontological resources are fossils or groups of fossils that are unique, unusual, rare, uncommon, or important, and those that add to an existing body of knowledge in specific areas. Only a handful of specimens are within the Stockton General Plan Planning Area, and those are identified as relatively recent (City of Stockton 2018b). However, records Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-22 January 2023 EXHIBIT 1 669
of vertebrate fossils have been related to the Modesto Formation, which underlies the project site.

Environmental Impacts and Mitigation Measures
a-i) Fault Rupture Hazards.

As noted, there are no active or potentially active faults within or near the project site.

The project site is not within or near a designated Alquist-Priolo Earthquake Fault Zone (California Geological Survey 2015). The project would have no impact related to fault rupture.
a-ii) Seismic Ground Shaking.

The project site is potentially subject to seismic shaking from active faults outside San Joaquin County. The City of Stockton has Standard Specifications for the installation of sanitary sewer lines. Implementation of these Standard Specifications would minimize the effects of seismic shaking on the sanitary sewer line. Seismic ground shaking impacts would be less than significant.
a-iii) Seismic-Related Ground Failure.

Geologic hazards include such phenomena as liquefaction and subsidence. Liquefaction generally occurs in areas where moist, fine-grained, cohesionless sediment or fill materials are subjected to strong seismic ground shaking. Under certain circumstances, seismic ground shaking can temporarily transform an otherwise solid, granular material to a fluid state. Neither the California Geological Survey nor the U.S. Geological Survey has mapped any liquefaction hazard zones in the Stockton area (City of Stockton 2018b).

Subsidence is the sinking of a large area of ground surface in which the material is displaced vertically downward, with little or no horizontal movement. Subsidence is not anticipated in the project vicinity.

As noted in a-ii) above, the City of Stockton has Standard Specifications, the implementation of which would minimize the effects of potential ground failure on the sanitary sewer line. Impacts related to ground failure would be less than significant. a-iv) Landslides.

The project site is in a topographically flat area. In addition, the project would be installed underground and therefore would not be affected by any landslides or other surface earth movement that may occur. The project would have no impact related to landslides.
b) Soil Erosion.

The construction and grading associated with site preparation and construction of the project would temporarily increase the exposure of soils on the project site to water and wind erosion. Since construction activities would disturb more than an acre of land area, the project would need to obtain a Construction General Permit from the SWRCB. The Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-23 January 2023 EXHIBIT 1 670
Construction General Permit would require preparation of a Storm Water Pollution Prevention Plan (SWPPP) by a Qualified SWPPP Developer. The SWPPP would include implementation of Best Management Practices (BMPs) to avoid or minimize adverse water quality impacts from erosion and sedimentation. BMPs fall within the categories of Temporary Soil Stabilization, Temporary Sediment Control, Wind Erosion Control, Tracking Control, Non-Storm Water Management, and Waste Management and Materials Pollution Control.

Also, as discussed in Section 3.4, Biological Resources, work in and adjacent to Mormon Slough would be required to obtain several permits, including a Corps of Engineers Section 404 permit, a Section 401 Water Quality Certification from the Regional Water Quality Control Board, and a Lake and Streambed Alteration Agreement from the California Department of Fish and Wildlife. These permits typically have conditions attached that are designed to avoid or minimize impacts on the water quality of the streams in which work would be conducted, including measures to reduce ground disturbance. Project impacts related to soil erosion would be less than significant. c) Geological Instability.

Existing soil and geological conditions are similar to those throughout most of Stockton.

The project site is topographically flat, so no on- or off-site landslides or lateral spreading would occur. As noted in a-iii) above, subsidence and liquefaction are unlikely to occur.

As noted in a-ii) above, the City of Stockton has Standard Specifications, the implementation of which would minimize the effects of potential geologic instability on the sanitary sewer line. Project impacts related to geological instability would be less than significant.
d) Expansive Soils.

Project construction work would occur in soils with high expansive (shrink-swell) potential. Project work would follow City of Stockton Standard Specifications, which would minimize the potential for expansive soils to affect street construction. Project impacts related to expansive soils would be less than significant. e) Adequacy of Soils for Sewage Disposal.

The project is the replacement of a sanitary sewer line. The project would not generate wastewater; therefore, no onsite sewage disposal systems would be required. The project would have no impact related to soil adequacy for sewage disposal. f) Paleontological Resources.

The Modesto Formation underlying the project site has been a source of paleontological resources. Given project vicinity development and the lack of resources identified in the Stockton area, it is unlikely that intact paleontological resources would be encountered.

However, it is conceivable that currently unknown paleontological resources could be uncovered during project construction. Mitigation described below would require work to be stopped when paleontological resources are uncovered until these resources can be evaluated by a qualified paleontologist and recommendations made for their proper Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-24 January 2023 EXHIBIT 1 671
disposition. Implementation of this mitigation measure would reduce paleontological resource impacts to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

GEO-1: If any paleontological resources are encountered during project construction, all activities shall be halted within 50 feet of the discovery until a qualified paleontologist can examine these materials, determine their significance and, if significant, recommend mitigation measures that would reduce potential effects to a level that is less than significant. Such measures could include 1) preservation in place or 2) excavation, recovery, and curation by qualified professionals. The project applicant shall be responsible for retaining qualified professionals, implementing recommended mitigation measures, and documenting mitigation efforts in a written report to the Public Works Department, consistent with the requirements of the CEQA Guidelines.

Significance After Mitigation: Less than significant

3.8 GREENHOUSE GAS EMISSIONS
Would the project:
a) Generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the
environment?
b) Conflict with an applicable plan, policy, or regulation adopted for the purpose of reducing the emissions of
greenhouse gases?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact
v'
v'
No Impact
A GHG is a gas that absorbs and emits radiation within the thermal infrared range, trapping heat in the earth's atmosphere. There are several types of GHGs, which are both naturally occurring and generated by human activity. Increased atmospheric concentrations of GHGs are considered a primary contributor to global climate change, which is a subject of concern for the State of California. Potential climate change impacts occurring in the San Joaquin Valley include more intense and frequent heat waves, higher Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-25 January 2023 EXHIBIT 1 672
frequency of catastrophic floods, more intense and frequent drought, and more severe and frequent wildfires (Westerling et al. 2018).

GHG emissions in California in 2018, the most recent year for which data are available, were estimated at approximately 425 million metric tons CO2e - a decrease of approximately 13% from the peak level in 2004. Transportation was the largest contributor to GHG emissions in California, with approximately 40% of total emissions.

Other significant sources include industrial activities, with approximately 21 % of total emissions, and electric power generation, both in-state and imported, with approximately 15% of total emissions (ARB 2020). Total GHG emissions from Stockton in 2005 were an estimated 2,360,932 metric tons CO2e. Of the total emissions, approximately 48% percent came from on-road transportation and 33% came from building energy use (City of Stockton 2014).

Unlike the criteria air pollutants described in Section 3.3, Air Quality, GHGs have no "attainment" standards established by the federal or State government. In fact, GHGs are not generally thought of as traditional air pollutants because their impacts are global in nature, while air pollutants mainly affect the general region of their release to the atmosphere. Nevertheless, the U.S. Environmental Protection Agency has found that GHG emissions endanger both the public health and public welfare under Section 202(a) of the Clean Air Act due to their impacts associated with climate change (EPA 2009).

The State of California has implemented GHG emission reduction strategies through AB 32, the Global Warming Solutions Act of 2006, which requires total statewide GHG emissions to reach 1990 levels by 2020, or an approximately 29% reduction from 2004 levels. In 2016, Senate Bill (SB) 32 became law. SB 32 extends the GHG reduction objectives of AB 32 by mandating statewide reductions in GHG emissions to levels that are 40% below 1990 levels by the year 2030. The State has adopted an updated Scoping Plan that sets forth strategies for achieving the SB 32 target, which is 260 million metric tons CO2e. The updated Scoping Plan continues many of the programs that were part of the previous Scoping Plans, including the cap-and-trade program, low-carbon fuel standards, renewable energy, and methane reduction strategies, along with a proposed 20% reduction in GHG emissions from refineries. It also addresses for the frrst time GHG emissions from the natural and working lands of California, including the agriculture and forestry sectors (ARB 2017).

The City of Stockton adopted a Climate Action Plan (CAP) in 2014. The CAP sets a GHG emission reduction target of 10% below 2005 GHG emission levels by 2020, or approximately 20.6% below 2020 "business as usual" GHG emissions (i.e., 2020 GHG emissions that are unmitigated), which is the level by which the State has set its emission reduction goal. Approximately 83% of the reductions needed to achieve the City's GHG reduction goal are achieved through state-level programs, and 17% are achieved through City-level programs. The largest GHG reductions identified are in building energy (both energy efficiency and renewable energy), transportation, and waste (City of Stockton 2014). At this time, the City has no CAP for beyond 2020, although it does plan to update the community GHG inventory.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-26 January 2023 EXHIBIT 1 673
Environmental Impacts and Mitigation Measures
a, b) Project GHG Emissions and Consistency with GHG Reduction Plans.

GHG emissions from project construction were estimated using the RCEM in conjunction with the analysis of air quality impacts; modeling results are displayed in Appendix A of this IS/MND.

Construction GHG emissions were estimated at approximately 41.2 metric tons C02e, assuming a three-month continuous construction period (see Section 3.3, Air Quality).

Construction emissions are temporary and would cease when project work is completed.

Project operations would not generate any GHG emissions; therefore, the project would not conflict with the objectives of adopted State and City GHG reduction plans. Project impacts related to GHG emissions and GHG reduction plans would be less than significant.

3.9 HAZARDS AND HAZARDOUS MATERIALS
Would the project:
a) Create a significant hazard to the public or the
environment through the routine transport, use, or disposal of hazardous materials?
b) Create a significant hazard to the public or the
environment through reasonably foreseeable upset and
accident conditions involving the release of hazardous
materials into the environment?
c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school?
d) Be located on a site which is included on a list of
hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment?
e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard or excessive noise for people residing or working in the project area?
f) Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan?
g) Expose people or structures, either directly or indirectly, to a significant risk ofloss, injury or death involving wildland fires?
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-27
Less Than
Significant
with
Mitigation
Incorporated
V
V
V
Less Than
Significant
Impact
V
No Impact
V
V
V
January 2023
EXHIBIT 1 674

NARRATIVE DISCUSSION
Environmental Setting
Hazardous material sites of all statuses are recorded in the GeoTracker database, maintained by the SWRCB, and the EnviroStor database, maintained by the Department of Toxic Substances Control (SWRCB 2020, DTSC 2020). A search of both databases showed no active hazardous materials sites have been recorded in the vicinity, except for one denoted as "needing evaluation." Many previously recorded sites in the project vicinity have been cleaned up and their cases now closed.

The one site designated as "needing evaluation" is the Martin Metal Finishing site, on 1250 South Wilson Way. The Martin Metal Finishing site, operations on which had ceased in 1989, had been designated by EnviroStor as a site that is inactive but needs evaluation. The site was entered as a potential Superfund site due to a report of an illegal discharge of wastewater into the storm drain leading to Mormon Slough. Storm drain and slough soil samples indicated elevated levels of chromium, lead, and zinc. An investigation of the Martin Metal Finishing in 1999, conducted by the Department of Toxic Substances Control at EPA, concluded that the site did not qualify for further remedial site assessment under Superfund. The reason for this was a lack of a threat to human health (EPA 1999). Notably, the GeoTracker database has no record of this site, even though the Central Valley RWQCB had been actively participating in the investigation of the Martin Metal Finishing site.

Various federal and State laws and regulations cover the transportation, storage, and disposal of hazardous materials. The Unified Hazardous Waste and Hazardous Management Regulatory Program, enacted in 1993, is a state and local effort to consolidate, coordinate, and make consistent existing programs regulating hazardous waste and hazardous materials management. The Unified Program is implemented at the local level by a Certified Unified Program Agency. The San Joaquin County Environmental Health Department was approved by the State as the Certified Unified Program Agency for the County and its incorporated cities. The County Environmental Health Department has the primary responsibility to enforce most regulations regarding hazardous materials in the area, while the Stockton Fire Department Hazardous Materials Team acts as first responder to hazardous material incidents.

Environmental Impacts and Mitigation Measures
a) Hazardous Material Transportation, Use, and Storage.

The project proposes improvements to an existing street. Once the improvements are completed, the project would not require the use or storage of any materials considered hazardous on the project site. Transportation of hazardous materials may occur on Wilson Way and other local streets; however, this transport is part of existing conditions, and the hazardous materials transported are in relatively small amounts for adjacent commercial and light industrial uses. The project would not generate an increase in the transport of Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-28 January 2023 EXHIBIT 1 675
these materials. The project would have no impact on the transportation, use, or storage of hazardous materials.
b) Upset and Accident Conditions.

Construction activities on the project site may involve the use of hazardous materials typical for such activities, such as fuels and solvents, and thus create a potential for hazardous material spills. Construction and maintenance vehicles would transport and use fuels in ordinary quantities. Fuel spills, if any occur, would be minimal and would not typically have significant adverse effects. In accordance with SWPPP requirements (see Section 3. 7, Geology and Soils), contractors have absorbent materials at construction sites to clean up minor spills. Work in the vicinity of the Mormon Slough channel has the potential for fuel or other hazardous material spills into this surface water. Work areas and drainage from these areas need to be isolated from the channel at all times as provided in the mitigation described below.

Level of Significance: Potentially significant
Mitigation Measures:

HAZ-1 : Construction activity in the vicinity of the Mormon Slough channel shall at all times be isolated from any wetted portion of the channel, so as to prevent any potential contamination from surface runoff or liquid materials spilled within the construction area. The project shall comply with applicable requirements of all State and federal agency permits related to construction of the project.

Significance After Mitigation: Less than significant
c) Release of Hazardous Materials near Schools.

There are no schools within one-quarter mile of the project site. The nearest school is Spanos Elementary School, approximately one-half mile northwest of the western terminus of the project site. As noted in a) above, the project would not use or store hazardous materials when completed. The project would have no impact related to releases of hazardous materials near schools.
d) Hazardous Material Sites.

As noted, the Martin Metal Finishing site was recorded as inactive but needing evaluation. An investigation had been conducted, and the EPA concluded that it needed to take no further action, as the site does not qualify as a Superfund site. However, there is no indication that previously identified contamination has been remediated. Therefore, construction work in the vicinity of this site could potentially encounter soil contamination, which may cause adverse health effects on workers and potentially nearby land uses. Mitigation presented below would require an assessment of potential soil contamination near the hazardous material site and further action if contamination is encountered. Implementation of this measure would reduce impacts related to hazardous material sites to a level that would be less than significant.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-29 January 2023 EXHIBIT 1 676
Level of Significance: Potentially significant
Mitigation Measures:

HAZ-2: Prior to the start of construction on the Mormon Slough portion of the project alignment within 400 feet of Wilson Way, a Phase I Environmental Site Assessment shall be conducted to determine whether and where potential soil contamination may exist within the project alignment. Where the assessment indicates the potential presence of soil contamination, additional investigation and testing shall be conducted to identify areas of contamination that could pose a risk to human health. Any such contaminated area identified shall be remediated in accordance with applicable State and local regulations pertaining to the contaminant.

Significance After Mitigation: Less than significant
e) Public Airports.

The nearest public airport, Stockton Metropolitan Airport, is approximately three miles to the south. The project site is not within any of the airport's safety zones, and it is outside the Airport Influence Area, as indicated in the airport's Land Use Compatibility Plan (Coffman Associates 2016). The project would not place residents or businesses in an area potentially subject to hazards from airport operations. The project would have no impact related to public airports.
f) Emergency Response and Evacuations.

Construction of the proposed project will require vehicle and construction equipment access between local roads and the project site. It is anticipated that most of this activity would occur outside the public street system and would be managed from a centrallylocated contractor staging area (Figure 2-1 ). As a result, the project could involve very short-term impacts on traffic and circulation on streets in the immediate vicinity of the site. Project construction would not be expected to substantially inhibit access for emergency vehicles to surrounding land uses in the project vicinity.

In the event the project would involve substantial effects on public street circulation, the contractor will need to prepare and implement a Traffic Control Plan, as required by the mitigation measure below, reducing potential impacts to less than significant. Following completion, the project would have no effect on traffic circulation in the project vicinity.

Level of Significance: Potentially significant
Mitigation Measures:

HAZ-3: Prior to the start of work in Sierra Nevada Street, the contractor shall prepare and implement a Traffic Control Plan in coordination with the Stockton Public Works, Police, and Fire Departments. The Traffic Control Plan shall address the routing of emergency vehicles, truck Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-30 January 2023 EXHIBIT 1 677
routing, and handling of pre-project daily traffic volumes as required during the construction period. It also shall address access to adjacent properties, pedestrian and bicycle safety provisions, and notification in advance of any street and driveway closures. The contractor shall specify dates and times of road closures or restrictions, if any, and shall ensure that adequate access will be provided for emergency vehicles.

Significance After Mitigation: Less than significant
g) Wildland Fire Hazards.

The project site is within a developed urban area; the Mormon Slough channel is within an open space area that could be prone to wildfire but is infrequently maintained to minimize wildfire risk. Project construction activities, including operation of construction equipment, storage of combustible materials and waste, or disposal of cigarettes would involve some fire risk. Construction plans and specifications would include provisions to reduce fire hazards, such as disposal of combustible waste, use of spark arrestors, storage of combustible materials away from sites, and prohibitions on smoking. With these provisions, project impacts related to wildland fire hazards would be less than significant.

Section 3.20, Wildfire, discusses wildfire impacts in more detail.

3.10 HYDROLOGY AND WATER QUALITY
Would the project:
a) Violate any water quality standards or waste discharge requirements or otherwise substantially degrade surface or ground water quality?
b) Substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the
basin?
c) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river runoff or through the addition of impervious surfaces, in a manner which would:
i) Result in substantial erosion or siltation on- or off-site? ii) Substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or off-site?
iii) Create or contribute runoff water which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-31
Less Than
Significant
with
Mitigation
Incorporated
V
Less Than
Significant
Impact No Impact
V
V
V
V
January 2023
EXHIBIT 1 678
polluted runoff?
iv) Impede or redirect flood flows?
d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to project inundation?
e) Conflict with or obstruct implementation of a water
quality control plan or sustainable groundwater management plan?

NARRATIVE DISCUSSION
Environmental Setting
v'
v'
v'
The proposed project is located along Mormon Slough. Most of historical Mormon Slough, originating near Bellota, has been incorporated into the Stockton Diverting Canal, which diverts most of the flow of the Calaveras River at Bellota. The remaining section of Mormon Slough, from the Stockton Diverting Canal to its confluence with the San Joaquin River, is an intermittent stream that has been improved as a flood control channel, including the segment adjacent to the project site. Mormon Slough is the southern and main distributary branch of the Calaveras River and carries most of the river's usual flow, and the slough is the terminal drainage for east-central Stockton and the adjoining agricultural areas to the east. Mormon Slough discharges into the Stockton Deep Water Channel, which in turn discharges into the San Joaquin River.

In the project vicinity, Mormon Slough is contained in a floodplain channel approximately 50 to 100 feet wide, which is bounded on the north and south by elevated banks and depressed below the existing grade of surrounding developed lands by the same amount. When not in high flow condition, surface flow in Mormon Slough is conducted to and through a concrete box culvert which begins just east of the Wilson Way bridge and extends west to a point well outside the project area. Both upstream and downstream of the box culvert, the slough channel and vicinity in the project vicinity has been substantially altered by past construction and maintenance activities as well as homeless occupation. There are no other streams or other surface waters in the vicinity of the site.

The project site is within the Eastern San Joaquin County Groundwater Subbasin of the San Joaquin Valley Groundwater Basin. According to the most recent information available, groundwater in the project area is approximately 40-50 feet below ground surface (San Joaquin County FCD 2016). Recharge to the groundwater system in the Stockton area primarily is from percolation of irrigation return water, precipitation, seepage from reservoirs and rivers, and urban runoff.

Potential flooding hazards are designated on maps prepared by the Federal Emergency Management Agency (FEMA). FEMA maps focus on areas potentially subject to inundation by a 100-year flood (i.e., a flood of such magnitude that occurs on average once every 100 years). According to FEMA Map Panel 06077C0460F, the area within Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-32 January 2023 EXHIBIT 1 679
the banks of Mormon Slough is in Zone A, which designates the 100-year flood area and is determined to be a Special Flood Hazard Area. The portion of the project site outside Mormon Slough and its banks is in Zone X, which indicates the project site is at reduced risk from a 100-year flood due to a levee (FEMA 2009)
SB 5 and related State legislation requires future development to consider the 200-year flood event (i.e., a flood of such magnitude that occurs on average once every 200 years) within certain Central Valley geographies, with a focus on areas subject to a 200-year flood of three feet or more in depth. Based on information in the Stockton General Plan, the project site would not be subject to a 200-year flood at a depth of three feet or greater ( City of Stockton 2018a ).

Environmental Impacts and Mitigation Measures
a) Water Quality.

The project site is mostly within the Mormon Slough flood channel and parallels and crosses the waterway, which flows intermittently. Project construction would involve deep excavation, spoil storage, and other earth moving activity within an estimated 40- foot-wide disturbance corridor paralleling, and at certain locations crossing, the Mormon Slough waterway. The project would involve substantial exposure ofuncompacted soil to rainfall erosion and unless confined to the construction area losses of sidecast soil to the nearby waterway.

Project construction would need to be carefully planned, designed, and constructed to minimize potential risk of soil erosion and sediment deposition in Mormon Slough. This can be accomplished by preparation of a project-specific Water Quality Control Plan which identifies specific water quality control measures such as grading away from the watercourse along the construction pathway, placement of sidecast and soil storage areas, installation of erosion control devices such as straw wattles and silt fences. The Water Quality Control Plan would be integrated with Construction General Permit requirements and applicable requirements of the U.S. Army Corps of Engineers Section 404 permit, the Section 401 Water Quality Certification from RWQCB, and the CDFW Lake and Streambed Alteration Agreement (See Section 3.4, Biological Resources). These permits typically include conditions that are designed to avoid or minimize impacts on water quality of the streams. These actions would reduce potential water quality impacts in Mormon Slough to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

HYDRO-1: A Water Quality Control Plan shall be prepared for the project which shall identify project-specific water quality control measures that will minimize potential for erosion and sedimentation of the Mormon Slough waterway. The Plan shall include identification of construction units that can be hydrologically isolated from the Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-33 January 2023 EXHIBIT 1 680
waterway by grading or placement of soil; and the placement, maintenance and periodic inspection of erosion control devices.

The requirements of the Water Quality Control Plan shall be integrated with Construction General Permit requirements and applicable requirements of the US Anny Corps of Engineers Section 404 permit, the Section 401 Water Quality Certification from RWQCB, and the CDFW Lake and Streambed Alteration
Agreement.

Significance After Mitigation: Less than significant
b) Groundwater Supplies and Recharge.

The project would not require the use of water; therefore, it would not place demands on groundwater supplies used by the City or other agencies. The project would not increase or substantially modify existing development and paved surfaces in the vicinity, so the project would not change existing recharge conditions, which are minimal. The project would have no impact on groundwater supplies or recharge. c-i, ii) Drainage Patterns.

The project would involve substantial grading and excavation within the Mormon Slough channel during project construction. Construction would occur outside of the typical rainy season, during which Mormon Slough could have substantial flow. After construction is completed, the ground surface would be restored to its existing condition.

Therefore, the project would result in no impact on existing drainage patterns. c-iii) Runoff.

As noted in b) above, existing development and pavement areas on and in the vicinity of the project site would not be modified by the project. Therefore, the project would not result in any substantial changes in runoff volumes. The project would have no impact on runoff.
c-iv) Flood Flows.

As noted, the FEMA map for the project site designates the site within Zone X, which indicates the project site is at reduced risk from a 100-year flood due to a levee. FEMA generally designates areas at risk from a 100-year flood within Zone A, or a variant thereof. Since the project site is not within Zone A, it is not considered by FEMA standards to be within a special flood hazard area. Also as noted, the project site is not within a designated 200-year floodplain that would flood at least three feet in depth. The project would not change existing flood risks, especially since there would be no change in runoff volumes, as noted in c-iii) above. The project would have no impact related to flooding hazards.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-34 January 2023 EXHIBIT 1 681
d) Release of Pollutants in Flood, Tsunami, or Seiche Zones.

As described in c-iv) above, the project site is not within a 100-year floodplain or a 200- year floodplain that would flood to a depth of at least three feet. The project is not near any large bodies of water, so it would not be subject to seiches or tsunamis. The project would not introduce any hazardous materials that could be released in quantities that would contaminate any flood flows (see Section 3.9, Hazards and Hazardous Materials).

The project would have no impact related to release of pollutants in flood, tsunami, or seiche zones.
e) Conflicts with Water Quality or Groundwater Management Plans.

As noted in a) above, the project would be subject to the City's MS4 permit program, which is designed to minimize impacts on water quality. In 2014, the California Legislature passed the Sustainable Groundwater Management Act, part of which requires groundwater sustainability plans for critically overdrafted basins to be adopted by January 31, 2020. The Eastern San Joaquin County Groundwater Subbasin is designated a critically overdrafted basin, and a groundwater sustainability plan for the Subbasin was submitted to the California Department of Water Resources on January 29, 2020. As noted in a) and b) above, the project would not affect groundwater resources or supplies.

Project impacts related to water quality or groundwater management plans would be less than significant.

3.11 LAND USE AND PLANNING
Would the project:
a) Physically divide an established community?
b) Cause a significant environmental impact due to a conflict with any land use plan, policy, or regulation adopted for the purpose of avoiding or mitigating an environmental effect?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact
v'
No Impact
v'
The project site is within a developed urban area of southern Stockton, with Mormon Slough crossing the area. The immediate project vicinity contains predominantly light industrial land uses on both sides of Mormon Slough, with some commercial uses set further back. Along Sierra Nevada Street and near the eastern terminus of the project site are residential areas contain mainly single-family residences. As discussed in Section 3 .1, Aesthetics, the Mormon Slough channel area is occupied by tents and temporary structures and improvements used by the unhoused population of the downtown area.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-35 January 2023 EXHIBIT 1 682
The project site is within the Stockton city limits. The Stockton General Plan 2040 designates most lands adjacent to the project site as Industrial and Commercial. Parcels along Sierra Nevada Street and near the eastern terminus of the project site are designated Medium Density Residential. The City of Stockton has designated zones on adjacent properties in accordance with its Zoning Ordinance. Zoning includes IG - Industrial, General; IL - Industrial, Limited; RM - Residential, Medium Density; and CG - Commercial, General.

Environmental Impacts and Mitigation Measures
a) Division of Established Community.

The project is the replacement of an underground sanitary sewer line. As the project would be under ground, it would not divide any established community. The project would have no impact on this issue.
b) Conflicts with Land Use Plans, Policies, and Regulations.

As the project is the replacement of an existing sanitary sewer line, it would not conflict with existing Stockton General Plan land use designations or zoning. It also would not be expected to conflict with Stockton plans, policies, and ordinances adopted for the purpose of avoiding or mitigating an environmental effect. The only potential conflict that may occur would be with Stockton General Plan Policy LU-5.2, which seeks to protect natural resource areas, fish and wildlife habitat, scenic areas, open space areas, agricultural lands, parks, and other cultural/historic resources from encroachment or destruction by incompatible development. Potential impacts related to this policy are analyzed in Section 3.4, Biological Resources. The conclusion reached was that the project would have no significant impact on Mormon Slough with implementation of mitigation measures. Project impacts related to conflicts with land use plans, policies, and regulations would be less than significant.

3.12 MINERAL RESOURCES
Would the project:
a) Result in the loss of availability of a known mineral resource that would be of value to the region and the
residents of the state?
b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan, or other land use plan?
Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-36
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact No Impact
v'
v'
January 2023
EXHIBIT 1 683

NARRATIVE DISCUSSION
Environmental Setting
Mineral resources within San Joaquin County are primarily sand, gravel, and other construction material deposits in the alluvial portion of the valley floor. Sand and gravel deposits have been identified along the Stanislaus River in San Joaquin and Stanislaus Counties from Ripon to the Stanislaus/Tuolumne County line (DMG 1977). Portland cement concrete aggregate deposits also have been identified within San Joaquin County; however, none are located on the project site (DMG 1988).

Oil and natural gas deposits have been identified throughout the Central Valley. Most of the deposits in the Stockton area are of natural gas. The project site does not contain oil or natural gas fields. The nearest such field is the Stockton natural gas field, which has been abandoned. The nearest active field is the French Camp natural gas field south of Stockton (DOGGR 2001).

Environmental Impacts and Mitigation Measures
a, b) Availability of Mineral Resources.

As described above, there are no identified mineral resources areas on or near the project site. There are no active mining operations on or near the project site. Therefore, the project would not affect the availability of, or access to, any known or locally designated mineral resources. The project would have no impact on mineral resources.

3.13 NOISE
Would the project result in:
a) Generation of a substantial temporary or permanent
increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? b) Generation of excessive groundbome vibration or
groundbome noise levels?
c) For a project located within the vicinity ofa private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
Significant
Impact
3-37
Less Than
Significant
with
Mitigation
Incorporated
V
Less Than
Significant
Impact
V
No Impact
V
January 2023
EXHIBIT 1 684

NARRATIVE DISCUSSION
Environmental Setting
The main source of noise in the project vicinity is motor vehicle traffic on local streets, mainly truck traffic associated with adjacent commercial and industrial land uses along Wilson way. Some of these land uses also generate noise during their hours of operation.

The main concern regarding noise generators are their impacts on noise-sensitive land uses. Noise-sensitive land uses are defined in Stockton Municipal Code Section

16.60.040 as residences, childcare and educational facilities, libraries and museums, lodging, and medical services. As noted, there are residences along Sierra Nevada Street and near the eastern terminus of the project site. No other noise-sensitive land uses are in the project vicinity.

Stockton Municipal Code Section 16.60.040 establishes the City's standards concerning acceptable noise levels for both noise-sensitive land uses and for noise-generating land uses and transportation-related sources. Noise standards for land uses are presented in Table 3-3 below. Standards are presented in decibels (dB) per the hourly equivalent sound level (Leg) and the maximum sound level. The Leq corresponds to a steady-state sound level containing the same total energy as a time varying signal over a given time period - usually one hour. The Leq shows very good correlation with community response to noise.

TABLE 3-3

CITY OF STOCKTON LAND USE NOISE STANDARDS
Outdoor Activity Areas
Day Night
(7:00 a.m. to 10:00 (10:00 p.m. to 7:00
Noise Level Descriptor p.m.) a.m.)
Hourly equivalent sound level (Lea), dB 55 45
Maximum sound level, dB 75 65
Source: Stockton Municipal Code Section 16.60.040.

Groundborne vibration is not a common environmental problem. It is typically associated with transportation facilities, although it is unusual for vibration from sources such as buses and trucks to be perceptible, even in locations close to major roads. Construction equipment is another potential source. Caltrans has prescribed a methodology for evaluating groundborne vibration impacts from construction related to potential damage to structures, based on transient sources (e.g., blasting, drop balls) or continuous/frequent intermittent sources such as impact and vibratory pile drivers, vibratory compaction equipment (Caltrans 2013). Measurements of groundborne vibrations are presented in peak particle velocity, with the unit of measure being inches per second. Table 3-4 presents thresholds for impacts related to groundborne vibration, based on the Caltrans methodology.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-38 January 2023 EXHIBIT 1 685
TABLE 3-4

GROUNDBORNE VIBRATION THRESHOLDS
Maximum Peak Particle Velocity (in/sec)
Guidelines for: Transient Sources
Structure and Condition
Older residential structures 0.5
New residential structures 1.0
Modem industrial/commercial buildings 2.0
Human Response
Barely perceptible 0.04
Distinctly perceptible 0.25
Strongly perceptible 0.9
Severe 2.0
Source: Caltrans 2013.

Environmental Impacts and Mitigation Measures
a) Generation of Noise Exceeding Local Standards.

Continuous/Frequent
Intermittent Sources

0.3 0.5

0.5 0.01

0.04 0.1

0.4 Temporary noise impacts would occur with project construction, mainly from construction equipment and from worker vehicle traffic. Most land uses adjacent to the project site are not sensitive to noise. However, as noted, residential areas are located along Sierra Nevada Street and near the eastern terminus of the project site. Construction activities near residences could generate noise at levels that exceed City noise standards for these land uses. Table 3-5 shows noise levels that could be generated by construction equipment. Construction activities would be temporary and would cease once construction work is completed on the segments near the residential areas. Nevertheless, construction noise is a potentially significant impact. Mitigation described below would limit construction hours and require the use of mufflers, thereby reducing construction noise impacts to a level that would be less than significant.

After construction is completed, the project would not generate noise, as the replacement sanitary sewer line would be underground. No additional facilities that could generate noise, such as pumps, would be installed. Project operation would have no impact on ambient noise in the project vicinity.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-39 January 2023 EXHIBIT 1 686
TABLE 3-5

CONSTRUCTION EQUIPMENT NOISE
Type of Equipment Maximum Level, dB at 50 feet
Backhoe 78
Compactor 83
Compressor (air) 78
Concrete Saw 90
Dozer 82
Dump Truck 76
Excavator
Generator
Jackhammer
Pneumatic Tools
Source: FHWA 2006.

Level of Significance: Potentially significant
Mitigation Measures:
81 81
89 85
NOISE-I: The following measures shall be implemented to minimize noise impacts at sensitive receptors (i.e., residences) during construction:
• Construction activities shall be limited to the hours from 7:00 a.m. to 6:00 p.m. on all working days. Construction work shall not occur on Sundays and federal holidays.
• Use newer equipment with improved muffling and ensure that all equipment items have the manufacturers' recommended noise abatement measures, such as mufflers, engine enclosures, and engine vibration isolators intact and operational. All construction equipment shall be inspected at periodic intervals to ensure proper maintenance and presence of noise control devices ( e.g., mufflers and shrouding, etc.).
• Turn off idling equipment when not in use for more than five minutes, in accordance with State regulations.
• Plan noisier operations during times of least sensitivity to receptors. • Provide frequent activity update of all construction activities to affected residences.

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Significance After Mitigation: Less than significant
b) Exposure to Groundbome Vibrations.

The project may generate groundbome vibrations from construction equipment use. As noted, land uses sensitive to noise are located near the project site. These land uses would also be sensitive to groundbome vibrations. Groundbome vibrations from project construction would cease once work is completed; nevertheless, groundbome vibrations could significantly affect sensitive land uses. Vibration levels from various types of construction equipment are shown in Table 3-6.

TABLE 3-6

VIBRATION SOURCE LEVELS FOR CONSTRUCTION EQUIPMENT
Equipment Peak Particle Velocity at 25 feet (in/sec)
Large bulldozer 0.089
Caisson drilling 0.089
Loaded trucks 0.076
Jackhammer 0.035
Small bulldozer 0.003
Source: City of Stockton 2017b.

Based on Caltrans standards provided in Table 3-4 above, the construction equipment likely to have an impact would generate groundbome vibrations that are less than the Caltrans thresholds for structural damage or human perception. After construction work is completed, no groundbome vibrations would be generated by the project. Project impacts related to groundbome vibration would be less than significant. c) Public Airport and Private Airstrip Noise.

As noted in Section 3.9, Hazards and Hazardous Materials, the nearest public airport is Stockton Metropolitan Airport, approximately three miles to the south. The project site is outside the noise exposure contours delineated in the Airport Land Use Compatibility Plan for the airport (Coffman Associates 2016). There are no private airstrips in the project vicinity. The project would not lead to the placement of residents or employees who could potentially be exposed to noise from any source. The project would have no impact related to airport or airstrip noise.

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3.14 POPULATION AND HOUSING
Would the project:
a) Induce substantial unplanned population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension ofroads or other infrastructure)?
b) Displace substantial numbers of existing people or
housing, necessitating the construction ofreplacement
housing elsewhere?

NARRATIVE DISCUSSION
Environmental Setting
Less Than
Significant
Potentially with Less Than
Significant Mitigation Significant
Impact Incorporated Impact No Impact
V
V
The 2020 U.S. Census indicates that the population of Stockton is 312,682, an increase of approximately 7.2% from its 2010 U.S. Census population of 291,707. As of the 2020 U.S. Census, Stockton had an estimated 104,720 housing units (U.S. Census Bureau 2020). Based on estimates from the California Department of Finance, single-family detached units (typical houses) accounted for approximately 64.5% of total housing units in Stockton (California Department of Finance 2021).

Environmental Impacts and Mitigation Measures
a) Unplanned Population Growth.

The project would not directly lead to the development of additional housing or businesses that may encourage population growth beyond that anticipated in the Stockton General Plan. The project vicinity is already substantially developed, and any future development would occur in accordance with the Stockton General Plan, as set forth in Section 3.11, Land Use. The project would have no impact related to unplanned population growth.
b) Displacement of Housing or People.

The project would be constructed within existing rights-of-way and along a stream. No existing residential units would be removed, and no residents would be displaced. The project would have no impact related to displacement.

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3.15 PUBLIC SERVICES
Would the project:
a) Result in substantial adverse physical impacts associated with the provision of, or the need for, new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times, or other performance objectives for any of the public services:
i) Fire protection?
ii) Police protection?
iii) Schools?
iv) Parks?
v) Other public facilities?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact No Impact
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Fire protection services are provided to the project site and vicinity by the Stockton Fire Department, and police protection services are provided by the Stockton Police Department. Parks within the City of Stockton are managed by the City's Community Services Department.

The project site is within the boundaries of the Stockton Unified School District. The Stockton-San Joaquin County Public Library system provides library services to the City.

The Superior Court of California, County of San Joaquin, has a courthouse in Stockton on 180 East Weber A venue.

Environmental Impacts and Mitigation Measures
a-i) Fire Protection Services.

The project is the replacement of a sanitary sewer line. As noted in Section 3.14, Population and Housing, the project would not construct residences or other development that would encourage population growth in the area. Because of this, it would not create additional demand for fire protection services. No new or expanded fire protection facilities that could have environmental impacts would be required. The project would have no impact on this issue.

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a-ii) Police Protection Services.

The project would not create additional demand for police protection services. No new or expanded police protection facilities that could have environmental impacts would be required. The project would have no impact on this issue. a-iii) Schools.

The project would not create additional demand for school services. No new or expanded school facilities that could have environmental impacts would be required. The project would have no impact on this issue.
a-iv) Parks.

The project would not create additional demand for parks. No new or expanded facilities that could have environmental impacts would be required. The project would have no impact on this issue.
a-v) Other Public Facilities.

The project would not create additional demand for other public facilities. No new or expanded facilities that could have environmental impacts would be required. The project would have no impact on this issue.

3.16 RECREATION
Would the project:
a) Increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facilities would occur or be accelerated?
b) Include recreational facilities or require the construction or expansion of recreational facilities that might have an adverse physical effect on the environment?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
Less Than
Significant
Impact No Impact
v'
v'
As noted in Section 3.15, Public Services, the City of Stockton provides park and recreational services within its City limits, managed by its Community Services Department. The City owns and operates 66 parks, along with accessible open space, special purpose facilities, and trails. The nearest City park is Liberty Square, at the comer of Jefferson and Grant Streets just north of the western terminus of the project site.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-44 January 2023 EXHIBIT 1 691
Environmental Impacts and Mitigation Measures
a, b) Recreational Facilities.

The project is the replacement of a sanitary sewer line. As noted in Section 3.14, Population and Housing, the project would not construct residences or other development that would encourage population growth in the area. Because of this, it would not create additional demand for recreational facilities, nor would it increase the use of existing facilities. No new or expanded facilities that could have environmental impacts would be required. The project would have no impact related to recreation.

3.17 TRANSPORTATION
Would the project:
a) Conflict with a program, plan, ordinance, or policy
addressing the circulation system, including transit,
roadway, bicycle, and pedestrian facilities?
b) Conflict with or be inconsistent with CEQA Guidelines Section 15064.3, subdivision (b)?
c) Substantially increase hazards to a geometric design feature (e g., sharp curves or dangerous intersections) or incompatible uses (e g, farm equipment)?
d) Result in inadequate emergency access?

NARRATIVE DISCUSSION
Environmental Setting
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
v
Less Than
Significant
Impact No Impact
v
v
v
The project site crosses or runs parallel to City of Stockton streets. In its western portion, the project site crosses Grant Street and Aurora Street. The central portion of the site crosses beneath Airport Way and Wilson Way. The eastern portion parallels the segment of Jefferson Street east ofBieghle Alley. Airport Way and Wilson Way are designated by the Stockton General Plan as arterials; all other named streets are local streets serving adjacent residences and businesses.

The San Joaquin Regional Transit District is the primary provider of public transportation service in the Stockton metropolitan area, offering fixed-route and flexible fixed-route services in the Stockton metropolitan area. It also provides curb-to-curb paratransit ("dial-a-ride") bus service for passengers who, due to their disability or age, are unable to access fixed route services. In the project vicinity, bus routes are on Stanislaus Street, Airport Way, and Wilson Way. There are no designated bike routes in the project Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-45 January 2023 EXHIBIT 1 692
vicinity. Sidewalks with varying widths and conditions have been installed m the residential areas and along Wilson Way.

Traffic conditions are frequently analyzed based on Level of Service (LOS). LOS measures the quality of traffic movement on roadways and through intersections. LOS is represented by letter designations from A to F, with A representing the best movement conditions and F representing the worst. However, the State of California has recently added Section 15064.3 to the CEQA Guidelines, which is meant to incorporate SB 743 into CEQA analysis. SB 743 was enacted in 2013 with the intent to balance congestion management needs and the mitigation of the environmental impacts of traffic with statewide GHG emission reduction goals. To advance this intent, Section 15064.3(b) states that VMT is the preferred method for evaluating transportation impacts. The VMT metric measures the total miles traveled by vehicles associated with a project. VMT accounts for the total environmental impact of transportation associated with a project, including use of non-vehicle travel modes. As noted in Section 3.6, Energy, estimated countywide daily VMT was 17,868,785 miles in 2015.

Environmental Impacts and Mitigation Measures
a) Conflicts with Transportation Programs and Plans.

The project is the replacement of a sanitary sewer line. As such, it would not involve any new long-term traffic generation, other than occasional trips by vehicles for maintenance and repair work. As noted in Section 3.14, Population and Housing, the project would not lead to development that would increase population. Therefore, the project would not indirectly increase traffic or generate additional demand on public transit or on facilities such as bikeways. The project would not conflict with any transportation programs or plans; therefore, the project would have no impact on this issue. b) Conflict with CEQA Guidelines Section 15064.3(b).

As noted in a) above, the project would not generate any long-term traffic. Because of this, the project would not generate any VMT; therefore, it would not conflict with CEQA Guidelines Section 15064.3(b). The project would have no impact on this issue. c) Traffic Hazards.

While the project would likely require some work within streets, the project would not alter streets in a manner considered hazardous to users. After construction work is completed, streets would be restored to their existing conditions. As noted in a) above, no additional traffic would be generated, and traffic composition on the affected streets would not changes. The project would have no impact related to traffic hazards. d) Emergency Access.

As discussed in Section 3.9, Hazards and Hazardous Materials, access for emergency vehicles to adjacent land uses would be maintained after project construction work is completed. Project construction may temporarily increase the response time for such vehicles on Sierra Nevada Street, plus access to adjacent land uses may be restricted.

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Implementation of Mitigation Measure HAZ-3 would reduce impacts related to emergency access during construction to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures: Implementation of Mitigation Measure HAZ-3.

Significance After Mitigation: Less than significant

3.18 TRIBAL CULTURAL RESOURCES
Would the project cause a substantial adverse change in the significance of a tribal cultural resource, defined in Public Resources Code Section 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:
a) Listed or eligible for listing in the California Register of Historical Resources, or in a local register of historical resources as defined in Public Resources Code Section
5020.l(k), or
b) A resource determined by the lead agency, in its
discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision ( c) of Public Resources Code Section 5024.1? In applying the
criteria set forth in subdivision (c) of Public Resources Code Section 5024.1, the lead agency shall consider the
significance of the resource to a California Native American tribe.

NARRATIVE DISCUSSION
Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Incorporated
V
V
Less Than
Significant
Impact No Impact
Information for this section is provided by a Cultural Resources Inventory and Evaluation Report prepared by Solano Archaeological Services, available in Appendix C. Section

3.5, Cultural Resources, describes the preparation of the report.

Environmental Setting
The project site is generally considered to be in Northern Valley Yokuts territory. The Northern Valley Yokuts occupied the land on either side of the San Joaquin River from the Delta to south of Mendota. The Diablo range probably marked the western boundary of Yokuts territory; the eastern boundary would have lain along the Sierra Nevada foothills. The Northern Valley Yokuts were organized into at least 11 small political units or tribes. Each tribe had a population of approximately 300 people, most of who lived within one principal settlement. Within the villages, structures included sweathouses, ceremonial chambers, and oval single-family dwellings made of tule. Northern Valley Y okuts material culture included a wide range of implements, including acorn mortars Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-47 January 2023 EXHIBIT 1 694
and pestles; snares, bows and spears used in hunting; tule boats; and a wide variety of basketry.

Early in the historic period, the Y okuts were severely impacted by the effects of EuroAmerican settlement. The Y okuts were particularly decimated by disease and warfare; as a result, they were generally not well documented in the ethnographic record. Many Y okuts were lured or captured by missionaries and taken to Mission San Jose or Mission Santa Clara. A probable malaria epidemic in 1833 decimated the indigenous population, killing thousands. The influx of Europeans during the Gold Rush era further reduced the population because of disease and violent encounters with the miners Presently, the Nototomne/North Valley Yokut Tribe, Inc., represents the Northern Valley Yokuts in the Stockton region.

In 2014, the California Legislature enacted AB 52. AB 52 modifies CEQA procedures regarding consultation with Native American tribes on cultural resource issues. AB 52 established a category called "tribal cultural resources," which not only includes physical resources but also site features, places, cultural landscapes, and sacred places and objects of value to a tribe, and which are on or eligible for a State or local historic register. AB 52 establishes notification requirements and consultation procedures between a CEQA lead agency and a tribe when a tribal cultural resource is involved. Matters which may be subjects of AB 52 consultation include the type of CEQA environmental review necessary, the significance of tribal cultural resources, and project alternatives or appropriate measures for preservation or mitigation of the tribal cultural resource that the tribe may recommend to the lead agency.

The consultation process ends when either (1) the resource in question is not considered significant, (2) the parties agree to mitigate or avoid a significant effect on a tribal cultural resource, or (3) a party, acting in good faith and after reasonable effort, concludes that mutual agreement cannot be reached. Regardless of the outcome, a lead agency is still obligated under CEQA to mitigate for any significant environmental effects, as explicitly noted in AB 52
Environmental Impacts and Mitigation Measures
a, b) Tribal Cultural Resources.

As part of the preparation of its report, Solano Archaeological Services requested the Native American Heritage Commission conduct a search of its Sacred Lands File for any record of the project site. The results of the search were negative. The Native American Heritage Commission provided a list of regional Native American community contacts consisting of 11 representatives of six tribes. Solano Archaeological Services made letter and telephone contact with all 11 representatives. One representative, Katherine Perez of the North Valley Yokuts Tribe, responded by expressing general concerns regarding the overall sensitivity of the project site and the potential for unanticipated discoveries since Mormon Slough is a natural watercourse. No concerns about specific tribal cultural resources on the project site were expressed. To date, the City has not received any requests for AB 52 consultation from a tribe.

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As noted in Section 3.5, Cultural Resources, a records search found no record of any archaeological resources on the project site, and a field survey found no prehistoric-era archaeological sites, features, or artifacts within or adjacent to the project site. However, as indicated in the comment from Katherine Perez, there is a potential for project construction to encounter currently unknown tribal cultural resources. As described in Section 3.5, the City has procedures to be followed should any human remains be uncovered, with special requirements for burials determined to be Native American.

Implementation of Mitigation Measure CULT-1, described in Section 3.5, sets forth procedures for the treatment and disposition of uncovered resources. In addition, mitigation described below that is specific to tribal cultural resources shall be implemented. With implementation of these mitigation measures, impacts on tribal cultural resources would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

TCR-1: If tribal cultural resources, including human remains and associated funerary objects, are encountered, the City shall be immediately notified of the find, and the City shall notify the appropriate tribal representatives. The qualified archaeologist and tribal representatives shall examine the materials and determine their significance as tribal cultural resources and shall recommend mitigation measures needed to reduce potential cultural resource effects to a level that is less than significant in a written report to the City, with a copy to the tribal representatives. The City will be responsible for implementing the report recommendations. Avoidance is the preferred means of disposition of tribal cultural resources.

Significance After Mitigation: Less than significant

3.19 UTILITIES AND SERVICE SYSTEMS
Would the project:
a) Require or result in the relocation or construction of new or expanded water, wastewater treatment, or storm water drainage, electric power, natural gas, or telecommunications facilities, the construction or relocation of which could cause significant environmental effects?
b) Have sufficient water supplies available to serve the project and reasonably foreseeable future development
during normal, dry, and multiple dry years?
c) Result in a determination by the wastewater treatment provider that would serve the project that it has adequate capacity to serve the project's projected demand in addition Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
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Impact
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EXHIBIT 1 696
to the provider's existing commitments?
d) Generate solid waste in excess of State or local standards, or in excess of the capacity of local infrastructure, or otherwise impair the attainment of solid waste reduction goals?
e) Comply with federal, state, and local management and reduction statutes and regulations related to solid waste?

NARRATIVE DISCUSSION
Environmental Setting
v'
v'
The City of Stockton provides wastewater and storm drainage services and facilities to the project vicinity. Water service in the area is provided by California Water Service (Cal Water), a private company. Solid waste collection service to residences and businesses is provided by Waste Management. Energy services, including electricity and natural gas, are provided by Pacific Gas and Electric Company. Telephone service is provided by AT&T, while cellular telephone service is provided by several companies.

Environmental Impacts and Mitigation Measures
a) Relocation or Construction of Utility Facilities.

The project is the replacement of an existing sanitary sewer line. No additional sewer or other utility lines would be installed. No relocation of existing lines is anticipated.

However, project construction would involve excavation within existing public right-ofway, portions of which contain existing underground water, storm drainage, energy, and communication lines. Excavation may involve the potential for damage to existing underground utilities.

Concerns about other underground utility lines are typically addressed by locating these facilities on plans during project engineering and by consulting with Underground Service Alert (USA), a nationwide utility location service, prior to construction.

Mitigation presented below would ensure that project design and construction take into consideration existing underground utility facilities and avoid damage to these facilities.

Planned improvements would not likely result in conflicts with any existing overhead electric, telephone, cable, or other utilities, although these facilities would also be identified through project engineering and consulting with USA. Implementation of mitigation measures would reduce potential impacts on other utility lines to a level that would be less than significant.

Level of Significance: Potentially significant
Mitigation Measures:

UTIL-1 : Existing utility lines and facilities shall be identified on project plans.

Project design shall enable construction of the planned improvements to Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 3-50 January 2023 EXHIBIT 1 697
occur without damage to existing utilities. Should utility conflicts be unavoidable, project plans and specifications shall provide for relocation or reconstruction of existing utilities as required.

UTIL-2: The project contractor shall consult with Underground Service Alert (USA) prior to construction to verify the location of any underground utilities in the construction area. Should USA identify an underground utility facility not accounted for in the project plans, the City shall contact the company or agency responsible for the facility in question to verify its existence. If the existence of this facility is confirmed, then no construction shall proceed in the vicinity of this facility until project plans and specifications are modified such that this facility would be avoided, relocated, or reconstructed when construction work resumes.

Significance After Mitigation: Less than significant
b) Water Supplies.

The project would not place demands on the water supplies of Cal Water; therefore, no new supplies would need to be obtained. The project would have no impact on water supplies.
c) Wastewater Treatment Capacity.

The project would lead to more efficient collection of wastewater in the area, with less leakage. However, the project by itself would not generate wastewater; therefore, it would not create a demand for additional wastewater treatment capacity. As noted in this IS/MND, the project is not expected to encourage development such that additional wastewater capacity would be needed. The project would have no impact on wastewater treatment capacity.
d, e) Solid Waste Services.

The project would generate a moderate amount of construction debris, including broken pavement and waste soil in the paved portions of the project site. Waste material would likely be recycled or used for waste disposal cover material. The project would not generate a long-term demand for solid waste collection or disposal. The project would not place substantial demands on the capacity of landfills where the City's solid waste is disposed. The project would have no impact on solid waste services or regulations pertaining to solid waste.

3.20 WILDFIRE
If located in or near State Responsibility Areas or lands classified as Very High Fire Hazard Severity Zones, would the project:
a) Substantially impair an adopted emergency response plan Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
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Impact
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EXHIBIT 1 698
or emergency evacuation plan?
b) Due to slope, prevailing winds, and other factors,
exacerbate wildfire risks, and thereby expose project
occupants to pollutant concentrations from a wildfire or the uncontrolled spread of a wildfire?
c) Require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment?
d) Expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes?

NARRATIVE DISCUSSION
Environmental Setting
v'
v'
v'
Wildland fires are an annual hazard in San Joaquin County. Wildland fires burn natural vegetation on undeveloped lands and include rangeland, brush, and grass fires. Long, hot, and dry summers with temperatures often exceeding 100°F add to the County's fire hazard. Human activities are the major causes of wildland fires, while lightning causes the remaining wildland fires. High hazard areas for wildland fires are the grass-covered areas in the east and the southwest foothills of the County (San Joaquin County 2016).

The California Department of Forestry and Fire Protection (Cal Fire) has a Fire and Resource Assessment Program that identifies fire threat based on a combination of two factors: 1) fire frequency, or the likelihood of a given area burning, and 2) potential fire behavior (hazard). These two factors are combined in determining the following Fire Hazard Severity Zones: Moderate, High, Very High, Extreme. These zones apply to areas designated as State Responsibility Areas - areas in which the State has primary firefighting responsibility. The project site is not within a State Responsibility Area and therefore has not been placed in a Fire Hazard Severity Zone. The area surrounding the project site is likewise not in any designated fire hazard zone (Cal Fire 2007a, 2007b ).

Environmental Impacts and Mitigation Measures
a) Emergency Response Plans and Emergency Evacuation Plans.

The project site is not part of a State Responsibility Area, and Cal Fire maps indicate the site is not designated within a Very High Fire Hazard Severity Zone or a zone of higher severity. The project is in a developed urban area with no significant open spaces. The project would have no impact related to wildfire emergency response plans or emergency evacuation plans.

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b) Exposure of Project Occupants to Wildfire Hazards.

The project site is the replacement of a sanitary sewer line. The project would not lead to the placement of occupants who could be potentially exposed to pollutants from a wildfire. Cal Fire maps indicate that the project site is in a low-risk wildfire area. As noted in Section 3.9, Hazards and Hazardous Materials, there is open space area along Mormon Slough that could be prone to wildfire during project construction activities.

Construction plans and specifications would include provisions to reduce fire hazards.

With these provisions, project impacts related to exposure of project occupants to wildfire hazards would be less than significant.
c) Installation and Maintenance of Infrastructure.

As noted, the project site is in an urban area with no heightened risk of wildfire. The replacement of the existing sanitary sewer line would not exacerbate the wildfire risk on the project site, other than during construction activities as noted in b) above. Project related to infrastructural exacerbation of wildfire hazards would be less than significant. d) Risks from Runoff, Post-Fire Slope Instability, or Drainage Changes.

The project site is in a topographically flat area in the San Joaquin Valley. As such, it is not expected that people or structures would be exposed to significant risks from changes resulting from fires in steeper areas farther upstream, including downslope or downstream flooding or landslides. The project would have no impact related to risks from runoff, post-fire slope instability, or drainage changes.

3.21 MANDATORY FINDINGS OF SIGNIFICANCE
a) Does the project have the potential to substantially degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community,
substantially reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important
examples of the major periods of California history or
prehistory?
b) Does the project have impacts that are individually
limited, but cumulatively considerable? "Cumulatively
considerable" means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)?
c) Does the project have environmental effects which would cause substantial adverse effects on human beings, either Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND Potentially
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Impact
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Significant
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Incorporated
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Less Than
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Impact
V
V
No Impact
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directly or indirectly?

NARRATIVE DISCUSSION
a) Findings on Biological and Cultural Resources.

The potential biological resource and cultural resource impacts of the revised project were described in Sections 3.4 and 3.5 of this IS/MND. Potentially significant environmental effects on biological and cultural resources were identified, but implementation of mitigation measures described in Sections 3.4 and 3.5 would reduce these effects to a level that would be less than significant. b) Findings on Cumulatively Considerable Impacts.

A cumulative impact is an environmental impact that may result from the combination of two or more environmental impacts associated with the proposed project with each other, or the combination of one or more project impacts with related environmental impacts caused by other projects.

In general, the project would have no impact on environmental issues, or would have impacts that are less than significant. For project-specific effects identified as potentially significant, mitigation measures would reduce these effects to a level that would be less than significant. The project is an improvement to an existing sewer pipeline; as such, it is not expected to have cumulative effects. The project would not make a considerable contribution to potential cumulative impacts.
c) Findings on Adverse Effects on Human Beings.

Potential adverse project effects on human beings were discussed in Section 3.3, Air Quality; Section 3.7, Geology and Soils (seismic hazards); Section 3.9, Hazards and Hazardous Materials; Section 3.10, Hydrology and Water Quality (flooding); Section

3.17, Transportation (traffic hazards); and Section 3.20, Wildfire. The project would have no impact or a less-than-significant impact on most of these issues. Potential adverse effects that were identified in those sections would be reduced to levels considered less than significant through compliance with applicable laws, regulations, and City ordinances and standards, along with mitigation measures where necessary.

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4.0 REFERENCES

4.1 DOCUMENT PREPARERS
This IS/MND was prepared by BaseCamp Environmental, Inc. for use by and under the supervision of the City of Stockton Public Works Department. The following persons were involved in preparation of the IS/MND:

City of Stockton Public Works Department
Seng Lo, Associate Engineer
KSN, Inc.

Bill Worrall, P .E., Associate Engineer
BaseCamp Environmental, Inc.

Charlie Simpson, Principal
Terry Farmer, AICP, Senior Environmental Planner
Krista Simpson, Associate Environmental Planner
BaseCamp Subcontractors
Jason Coleman, Principal, Solano Archaeological Services Diane S. Moore, Moore Biological Consultants

4.2 REFERENCES CITED
California Air Resources Board (ARB). 2017. California's 2017 Climate Change Scoping Plan. November 2017 .
---. 2020. California Greenhouse Gas Emissions for 2000 to 2018.

California Department of Conservation, Division of Land Resources Protection, Farmland Mapping and Monitoring Program (FMMP). 2018. San Joaquin County Important Farmland 2018 (map).

California Department of Conservation, Division of Mines and Geology (DMG). 1977.

Mineral Land Classification Study of the Stanislaus River Area, San Joaquin and Stanislaus Counties, California. DMG Open File Report 77-16. ___ . 1988. Mineral Land Classification of Portland Cement Concrete Aggregate in the Stockton-Lodi Production-Consumption Region. Special Report 160.

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California Department of Conservation, Division of Oil, Gas and Geothermal Resources (DOGGR). 2001. Oil, Gas, and Geothermal Fields in California 2001. Map S-1.

California Department of Finance. 2021. Report E-5, Population and Housing Estimates for Cities, Counties, and the State, January 1, 2011-2021, with 2010 Benchmark.

Released May 1, 2021.

California Department of Forestry and Fire Protection (Cal Fire). 2007a. Draft Fire Hazard Severity Zones in LRA, San Joaquin County (map). October 2, 2007. ___ . 2007b. Draft Fire Hazard Severity Zones in SRA, San Joaquin County (map).

Adopted on November 7, 2007.

California Department of Toxic Substances Control (DTSC). 2020. EnviroStor database, www.envirostor.dtsc.ca.gov. Accessed May 22, 2020.

California Department of Transportation (Caltrans). 2013. Transportation and Construction Vibration Guidance Manual. September 2013. ___ . 2017. Designated and Eligible California Scenic Highways. Available online at www.dot.ca.gov/design/lap/livability/scenic-highways/index.html. March 2017.

California Department of Water Resources (DWR). 2014. Geology of the Northern Sacramento Valley, California. June 2014 (updated September 22, 2014).

California Energy Commission (CEC). 2021a. Electricity Consumption by County-San Joaquin County 2019. Available online at ecdms.energy.ca.gov/ elecbycounty.aspx. Accessed August 20, 2021.
___ . 2021b. Gas Consumption by County-San Joaquin County 2019. Available online at ecdms.energy.ca.gov/gasbycounty.aspx. Accessed August 20, 2021.

California Geological Survey. 2015. CGS Information Warehouse: Regulatory Maps.

Available online at http://maps.conservation.ca.gov/cgs/ informationwarehouse/index.html?map=regulatorymaps.

City of Stockton. 2014. City of Stockton Climate Action Plan. Prepared by ICF International. Adopted December 2014.
___ . 2018a. Envision Stockton 2040 General Plan. Adopted December 2018. ___ . 2018b. Envision Stockton 2040 General Plan Update and Utility Master Plan Supplements Draft EIR. Prepared by Place Works. June 2018.

Coffman Associates, Inc. 2016. Airport Land Use Compatibility Plan Update for Stockton Metropolitan Airport. May 2016.

Federal Emergency Management Agency (FEMA). 2009. Flood Insurance Rate Map #06077C0460F, San Joaquin County, California. Effective date October 16, 2009.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 4-2 January 2023 EXHIBIT 1 703
Federal Highway Administration (FHWA). 2006. Roadway Construction Noise Model User's Guide. FHWA-HEP-05-054. January 2006.

Moore Biological Consultants. 2022. Mormon Slough Sewer Rehabilitation Project, Stockton, San Joaquin County, California: Biological Assessment. August 5, 2022.

San Joaquin Council of Governments. (SJCOG). 2000. San Joaquin County MultiSpecies Open Space and Habitat Conservation Plan (SJMSCP). November 14, 2000.
___ . 2018. 2018 Regional Transportation Plan/Sustainable Communities Strategy Draft Programmatic Environmental Impact Report. March 2018.

San Joaquin County. 2016. San Joaquin County General Plan Background Report.

Prepared by Mintier Harnish. December 2016.

San Joaquin County Flood Control and Water Conservation District (San Joaquin County FCD). 2016. Groundwater Report, Fall 2016.

San Joaquin Valley Air Pollution Control District (SN APCD). 2015. Guide for Assessing and Mitigating Air Quality Impacts. Adopted March 19, 2015. ___ . 2020. Ambient Air Quality Standards and Valley Attainment Status. Available online at valleyair.org/aqinfo/attainment.htm. Accessed April 3, 2020.

Solano Archaeological Services, LLC. 2021. Cultural Resources Inventory and Evaluation Report, Mormon Slough Sanitary Sewer Rehabilitation Project, City of Stockton, San Joaquin County, California. August 2022.

State Water Resources Control Board (SWRCB). 2020. GeoTracker website, www.geotracker.swrcb.ca.gov. Accessed May 22, 2020.

U.S. Census Bureau. 2020. Stockton city, California. Available online at https://data.census.gov/cedsci/profile?g=1600000US0675000. Accessed August 27, 2021.

U.S. Department of Agriculture, Natural Resources Conservation Service (NRCS). 2020.

Custom Soil Resource Report for San Joaquin County, California. May 22, 2020.

U.S. Department of Agriculture, Soil Conservation Service (SCS). 1992. Soil Survey of San Joaquin County, California.

U.S. Environmental Protection Agency (EPA). 1999. Remedial Site Assessment Decision -EPA Region IX: Martin Metal Finishing. March 25, 1999. ___ . 2009. Endangerment and Cause of Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act. Federal Register Vol. 74, No. 239, pp. 66496-66546. December 15, 2009.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 4-3 January 2023 EXHIBIT 1 704
Wagner, D. L., E. J. Bortugno, and R. D. McJunkin. 1991. Geologic Map of the San Francisco-San Jose Quadrangle, California, 1 :250,000. California Division of Mines and Geology, Regional Geologic Map Series.

Westerling, Leroy, Josue Medellin-Azuara, Joshua Viers. 2018. San Joaquin Valley Summary Report. California's Fourth Climate Change Assessment. Publication number: SUM-CCCA4-2018-003.

Mormon Slough Sanitary Sewer Line Rehabilitation IS/MND 4-4 January 2023 EXHIBIT 1 705

5.0 NOTES RELATED TO EVALUATION OF

ENVIRONMENTAL IMPACTS
1) A brief explanation is required for all answers except "No Impact" answers that are adequately supported by the information sources a lead agency cites in the parentheses following each question. A "No Impact" answer is adequately supported if the referenced information sources show that the impact simply does not apply to projects like the one involved ( e.g., the project falls outside a fault rupture zone). A "No Impact" answer should be explained where it is based on project-specific factors as well as general standards (e.g., the project will not expose sensitive receptors to pollutants, based on a project-specific screening analysis). 2) All answers must take account of the whole action involved, including off-site as well as on-site, cumulative as well as project-level, indirect as well as direct, and construction as well as operational impacts.
3) Once the lead agency has determined that a particular physical impact may occur, then the checklist answers must indicate whether the impact is potentially significant, less than significant with mitigation, or less than significant. "Potentially Significant Impact" is appropriate if there is substantial evidence that an effect may be significant. If there are one or more "Potentially Significant Impact" entries when the determination is made, an EIR is required. 4) "Negative Declaration: Less Than Significant with Mitigation Incorporated" applies where the incorporation of mitigation measures has reduced an effect from "Potentially Significant Impact" to a "Less Than Significant Impact." The lead agency must describe the mitigation measures, and briefly explain how they reduce the effect to a less than significant level (mitigation measures from "Earlier Analyses," as described in (5) below, may be cross-referenced). 5) Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR or negative declaration (CEQA Guidelines Section 15063(c)(3)(D)). In this case, a brief discussion should identify the following:
a) Earlier Analysis Used: Identify and state where they are available for review. b) Impacts Adequately Addressed: Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on the earlier analysis. c) Mitigation Measures: For effects that are "Less than Significant with Mitigation Measures Incorporated," describe the mitigation measures, which were incorporated or refined from the earlier document and the extent to Mormon Slough Sanitary Sewer Line Replacement IS/MND 5-1 January 2023 EXHIBIT 1 706
which they address site-specific conditions for the project. 6) Lead agencies are encouraged to incorporate into the checklist references to information sources for potential impacts (e.g., general plans, zoning ordinances).

Reference to a previously prepared or outside document should, where appropriate, include a reference to the page or pages where the statement is substantiated. 7) Supporting Information Sources: A source list should be attached, and other sources used or individuals contacted should be cited in the discussion. 8) This is only a suggested form, and lead agencies are free to use different formats; however, lead agencies should normally address the questions from this checklist that are relevant to a project's environmental effects in whatever format is selected. 9) The explanation of each issue should identify:
a) the significance criteria or threshold, if any, used to evaluate each question; and
b) the mitigation measure identified, if any, to reduce the impact to less than significance.

Mormon Slough Sanitary Sewer Line Replacement IS/MND 5-2 January 2023 EXHIBIT 1 707

APPENDIX A

RCEM RESULTS
EXHIBIT 1 708
Road Construction Emissions Model, Version 8.1.0
Road Construction Emissions Model Version 9.0.0
Data Entry Worksheet
Nom: �equired del8. iJJpul sections have a yellow baGk.ground. yrilow or blur. background can b& modified. Program dBfaults. 11allt'l a white background I Optional data ir1 put sections have a blue badqjrooncl. Only ar9s with a The user I& required tu enter Information In oell& 010 through 024, E28 lhrough G35, and D38through [),4.1 for all projectt,,pe&.

Please use •aear Data Input & User Overrides" OOtton fnt before i:hangiflg the Project Type or begin II new projec:L Input Type
P,o)ectName
Ccnslrud:ioR Start Yur
Mo,mo11 Slough $ewer
2023 Enter:, Year be-twee-11 2014 and 2040
(inciu!live)
To begin a nEIW prOjoot, Cliek thi& button to
dear data previously entered. This button
will only work if you opted not to disable
macros wMn IO�ing this �Ms�t
$i\CRAMUll0 METQOf>OUIAN
AIR
MANAGEMHll
-

QUALITY
-DISTRICT
I
PmjillciTypa 1) New Ro� Co11Struction: Pro_iectt.0 btlild a n)(ldwi:iy from b11re ground, which generally reQui,� more Me preparation thi:m wide11in<J an exi-sting ro11dway For 4: other lifl861� Project Type, pl8c1M �de project 1,pecific o!J.road (IQU lpm&nl popu alion and Vlilhlcl• trip (I.al.I
Project Cooslruction Time
Working Dey& p8f Monlh
Pradomlnant Soll/SIie Type: Enter 1, 2, or g
(for pl'Oj4JCI withiri ·Sacramento Courity", ,ollaw soil tyile selection instructiOns In calls E11!1 lo E20 ottW!lrwisa SIi& inllructiMS provided iri Clll�S J1!1 toJ22) I P"'jeci L,ngth
TatalProjeclArea
M.altimum Al'Q.ll DisbJIOOd.ll)ay
Water Trucb U�?
Material Hauling Quantity Input
Ma18rlal ,Ype
Soi
IA.sphall
2) Rood Widening : F'roject tct add a new lane to an &.11.isting roadway 3) BridgeJOverpess Construction: Projec:t to build an elevated roadway, which ge11erally ret1ui1es M>me d fferent equipment than II new roadway, such es 11. crane I---------,◄) Other Linea, Project Type: Non-roadway project s.ud1 as a pipeline, lran1m nkln line. or levee oons.trudion I 300 I
momh,
2200 days (a66Ume 22 If 111kootlln)
1) Sand Gravel: U&& for quatemarydepo$1ts (De talW&6tCcunty) 21 Wealtiered Rock-Eartt.: Use for L<1gu11a form<llion (J.tekson Highway area) or the lone. formation (Soott R08d, Rartcho Murieta) I 1
3 } Blasted Rock: Use for Salt Springs: Sis.le l'.lf'Copper Hil Volcanics {Folsom South ofHighw.ilySO, Raocho Muriel&)

0.49 miM

2.69 I L. ----'------'· o... I"'� !: ��&
Ph.,. Hlilul Truck Capacity (yd3) lassume 20 ii
unkllown} I Import Volume {yd3Jdti)') Export Volume (yd3/day) Gr ubbi!:!'.!:;aOO ClaarinS
i3Uldlng/E)(CAVA11<:,n
Orainage/UtililielllSu b--Gnide 20.0D I
,.oo 10.00
Paving
IGn.Jbbin :ind Clearin
°''' Excavation
Drainage/Utliliei/Sub--Gnide 20.00 1.00 1.00
P.!_ving
Pleaset'IOtethllllhesoll�IMtrueltons �dedlnool]$ E1SIOC0aro ,peclffc to Secramemo County. Maps eYellabl$ from the CaHf'ornls Oeol ogle survey (see webllnk below) can be U66d to determine sol type outside Sacramento County.
�5o£;1;£!°!1:!1c mapt1109/Pam(goog1emaDf.

Mitigation Options
On-road Fleet Em'8&ions Mitigation I Select "2Cl 10 and Newar On-road Varncles Fl ear option when tha on-road heavy-d11ty trud( fleet for the project will be limited ta IIElhid ss m model year 2010 ar newer Off-road Equipment Emis�klns Mitigation I =ii�: !��m
�:g
�t
�
:;'1:�:U� {:;��:�� 1 i
�:,Ju�n':i�-=��f!��:1=d conslruchoo fleeL The SMAQ"1l COJiSTilction Mitigatml Calclialor can be usad to confitm �-----------------�Select "Tier4 EQuipmenr optio11 if:iomeor all off'-road equipment used for the project meet! CARB Tier4 Standard L
The rvnalnlng ••c1lon1. of thl1 1.'1Nt cont.In anu that require modlflcaUon whlln 'Olh1r ProJut Type' Is Hlectad.

Nole: The programs nlimates Oll"corit.tl'lldion period pha&e length can be overridden in oell& 050 through D53, and F50 through F53.

UGer Ovemde of
Con11truciion Pariods Conslruction Monlhs
Gn.il>t>in(11Lanc O•s.ring
Grad ng/Ex.cavatlon
Drt1 n8gefUt�ilies/Sub-G,ade
Paving
Tot;ila 1Manth81
Note: So� Ha�ing emiHitln defaultvnlue11 can be 011erricklen in cell1 061 lhrough 064, 1111d f61 through f64.

Soll Haullng Emissions
UHtlni>ut
M lesfround bip: Grubbing/Land Clearing
M lMlround bip: Gradir,g/Excavalian
M leGftound lrlp: Dralnage/Ul.lltee/Sub-Grbdu
M lal'round lrip: Pamg
Emission Raus
Gn.it,bing)l..and Ch1aring (gramslmil1,1)
Grad ng/Excavat1on (gram&JmUe)
Drt1 ninliJ".JtJlities/Sub-Grade (gram,lmile)
Data Entry Worksheet
'-"er Override of
Mile�ndTri[
,.oo
ROO

0.03 0-03

0.03 I I
,
Progu.m
C;,lc1.bt«1
Months

0.30 1.20

1.05 0.45
Program �tlmate of
Ml�undTfq
co

0.40 0.40

0.40 UH>rOvelTldeof
Phll:te Startinn Dale
User OYerrtde d Tn.Jd<
R<>und TriP9I0�1
NOx

2.98 2.98

2.96 I I
PMgram
1Je,l,111Jt
Phaiie Slartinn DAie
11112023
1/11/2023
2117/2023
3/21t2023
DefauH\Jalues
Round Tfip,s/DaJ
PM18
a.11
0 11
a.11
Caloolated
OailyVMT
000

0.00 500

0.00 PM2.!I
o.os
...

0.05 SOx

0.02 0.02

0.02 CO2
1,714.99
1,11,_99

1.714.99
CH4

0.00 0-00

0.00 N20

0.27 0_27

0.27 C02o
1,795.36
1,795-36
1,795.38
Grubbin1
Grad,n9'
Onlll�•
PaYirig
oo�ad
Program
start dBi
EXHIBIT 1 709
Road Construction Emissions Model, Version 8.1.0
Paving(arams/mile} 0.03 0.40 2.98 0,11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Grubbing/Land Clearing (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grading/EXcavation (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Draining/Utilities/Sub-Grade (grams/trip) o.oo o.oo 4.43 o.oo o.oo o.oo o.oo o.oo o.oo o.oo Paving (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Hauling EmiHions ROG co NOx PM10 PM2.5 SOX CO2 CH4 N2O C02e Pounds per day- Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per canst. Period - Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Pounds per day- Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per canst. Period - Grading/Excavation o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo 0.00 Pounds per day- Dralnage/Utlltles/Sub-Grade 0.00 0.00 0.04 0.00 0.00 0.00 18.90 0.00 0.00 19.79 Tons per const. Period - Drainage/Utilities/Sub-Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.22 0.00 0.00 0.23 Pounds per day- Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per con st. Period - Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total tons per construction project 0.00 0.00 0.00 0.00 0.00 0.00 0.22 0.00 0.00 0.23 Note: Asphalt Hauling emission default values can be overridden in cells D91 through D94, and F91 through F94.

Asphalt Haullng Emissions User override of Program Estimate of User OVerrlde of Truck Default Values cala.ilated User Input Miles/Round Tri Miles/Round Tri Round Tri . Round Tri D Dai VMT Miles/round trip: Grubbingit.and Clearing 0 0.00
MIies/round trip: Grading/Excavation 0 0.00
Miles/round trip: Drainage/Utilities/Sub-Grade 5.00 1 5.00 MIies/round trip: Paving 0 0.00
Emission Rates ROG co NOx PM10 PM2.5 SOX CO2 CH4 N2O CO2e Grubbing/Land aearing (grams/mile) 0.03 0.40 2.98 0,11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Grading/Excavation (grams/mile) 0.03 0.40 2.98 0.11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Draining/Ulilllies/Sub-Grade (grams/mile) O.o3 0.40 2.98 0,11 0.05 0.02 1,714.99 0.00 0,27 1,795.36 Pavine(erams/mile} 0.03 0.40 2.98 0.11 0.05 0.02 1,714.99 o.oo 0.27 1,795.36 Grubbing/Land aearing (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grading/Excavation (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Draining/Ulilllies/Sub-Grade (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Paving (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 EmlHlona ROG co NOx PM10 PM2.5 SOX CO2 CH4 N2O CO2e
Pounds per day- GrubbingJ\..and Clearing o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo 0.00 Tons per con st. Period - Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Pounds per day- Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per const. Period - Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Pounds per day - Drainage/Utilities/Sub-Grade 0.00 0.00 0.04 0.00 0.00 0.00 18.90 0.00 0.00 19.79 Tons per cons!. Period - Drainage/Utilities/Sub-Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.22 0.00 0.00 0.23 Pounds per day- Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per const. Period - Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total tons per construction project o.oo o.oo o.oo o.oo o.oo o.oo 0.22 o.oo o.oo 0.23 Data Entry Worksheet
EXHIBIT 1 710
Road Construction Emissions Model, Version 8.1.0
Note: Worker commute default vah.ies can be overridden in cells D121 through D126.

Wort<er Commute Emissions UserOvemdeofWorker
User Input Commute Default values Default Values
Miles/ one-way trip 5 Calculated Calculated
One-way trips/day 1 DailvTrios DeilvVMT
No. of employees: GrubbingA..and Clearing 3 3 15.00
No. of employees: Grading/Excavation 3 3 15.00
No. of employees: Drainage/Utilities/Sub-Grade 5 5 25.00 No. of employees: Paving 3 3 15.00
EmlHlon Rates ROG co NOx PM10 PM2.5 SOX CO2 CH4 N2O C02e Grubbing/Land aearing (grams/mile) 0.02 0.91 0.07 0.05 0.02 0.00 317.66 0.00 0.01 319.68 Grading/Excavation (grams/mile) 0.02 0.91 0.07 0.05 0.02 0.00 317.66 0.00 0.01 319.68 Draining/Utillties/Sub-Grade (grams/mile) 0.02 0.91 0.07 0.05 0.02 0.00 317.66 0.00 0.01 319.68 Pavine(erams/mile} 0.02 0.91 0.07 0.05 0.02 0.00 317.66 0.00 0.01 319,68 Grubbing/Land Clearing (grams/trip) 1.04 2.75 029 0.00 0.00 0.00 6826 0.07 0.03 79.50 Grading/Excavation (grams/trip) 1.04 2.75 029 0.00 0.00 0.00 68.26 0.07 0.03 79.50 Draining/Utilities/Sub-Grade (gramsltrip) 1.04 2,75 029 0.00 0.00 0.00 6826 0.07 0.03 79.50 Paving (grams/trip) 1.04 2.75 029 0.00 0.00 0.00 68.26 0.07 0.03 79.50 EmlHion• ROG co NOx PM10 PM2.5 SOX CO2 CH4 N2O CO2e
Pounds per day- Grubbing/Land Clearing 0.01 a.as o.oo o.oo o.oo o.oo 10.96 o.oo o.oo 11.10 Tons per con st. Period - Grubbing/Land Clearing 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 Pounds per day- Grading/Excavation 0.01 0.05 0.00 0.00 0.00 0.00 10.96 0.00 0.00 11.10 Tons per const. Period - Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.15 Pounds per day- Drainage/Utilities/Sub-Grade 0.01 0.08 0.01 0.00 0.00 0.00 18.26 0.00 0.00 18.50 Tons per const. Period - DralnageAJtilities/Sub-Grade 0.00 0.00 0.00 0.00 0.00 0.00 021 0.00 0.00 021 Pounds per day- Paving 0.01 0.05 0.00 0.00 0.00 0.00 10.96 0.00 0.00 11.10 Tons per con st. Period - Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.05 Total tons E!er construction E!roject o.oo o.oo o.oo o.oo o.oo o.oo 0.45 o.oo o.oo 0.45 Note: Water Truck default values can be overridden in cells D153 through D156, 1153 through 1156, and F153 through F156.

Water Truck Emissions User 0Ven1de of Program Estimate of User 0Ven1de of Truck Default Values calculated User 0Ven1de of Default Values calculated UMrlnput Default# Waler Trucks Number of Water Trucks Round Tri ehicle/Da Round Tri sNehicle/Da Tri da Miles/Round Tri Miles/Round Tri Dai VMT Grubbing/Land aearing - Exhaust 1 1.00 5.00 5.00
Grading/Excavation - Exhaust o.oo
Drainage/Utilities/Subgrade 0.00
Paving 0.00
Emission Rates ROG co NOx PM10 PM2.5 SOX CO2 CH4 NZO CO2e Grubbing/Land Clearing (grams/mile) 0.03 0.40 2.98 0.11 a.as 0.02 1,714.99 o.oo 0.27 1,795.36 Grading/Excavation (grams/mile) 0.03 0.40 2.98 0,11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Draining/Utilities/Sub-Grade (grams/mile) 0.03 0.40 2.98 0.11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Pavlng{arams/mle} O.o3 0.40 2.98 0.11 0.05 0.02 1,714.99 0.00 0.27 1,795.36 Grubbing/Land Clearing (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grading/Excavation (grams/trip) o.oo 0,00 4.43 o.oo o.oo o.oo o.oo o.oo 0,00 o.oo Draining/Utilities/Sub-Grade (grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Pavlng(grams/trip) 0.00 0.00 4.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Emissions ROG co NOx PM10 PM2.5 SOx CO2 CH4 N2O CO2e
Pounds per day- Grubbing/Land Clearing 0.00 0.00 0.04 0.00 0.00 0.00 18.90 0.00 0.00 19.79 Tons per const. Period - Grubbing/Land Clearing o.oo o.oo o.oo o.oo o.oo o.oo 0.06 o.oo o.oo 0.07 Pounds per day- Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per const. Period - Grading/Excavation 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo Pounds per day- Drainage/Utilities/Sub-Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per con st. Period - DrainageAJtilities/Sub-Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Pounds per day- Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tons per const. Period - Paving 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total tons E!er construction E!ro!ect 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.07 Note: Fugitive dust default values can be overridden In cells D183 through D185, Fugltl11eDuat User Override of Max Default PM10 PM10 PM2.5 PM2.5 Acree e Disturbed/De Maximum Acree e/Da unds/da tons/ oriod unds/da to, er riod Fugitive Dust - Grubbing/Land Clearing 0.40 0.00 0.08 0.00 Fugitive Dust - Grading/Excavation 0.40 0.01 0.08 0.00
Fu itive Dust - Draine e/Utilities/SUb rade 0.40 0.00 0.08 0.00 Data Entry Worksheet
EXHIBIT 1 711
Road Construction Emissions Model, Version 8.1.0
Values in cells D195 through D228, D246 through D279, D297 through D330, and 0348 through D381 are required when 'Other Project Type' is selected.

Off.ftoad Equipment Emlulons
Default Mitigation Option
Grubbing/Land Clearing Number of Vehicles Override of Default ROG co NO, PM10 PM2.5 so, CO2 CH4 Default Equipment Tler (applicable only 'Mien
Override of Default Number of Vehicles Prooram-estimate "Tier 4 Miti ation� Ootion Selected\ EauiomentTier T= oounds/da oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav DOUnds/dav oounds/dav Model Default lier AerialLifls 0,00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 ModelDefaultller Air Compressors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Bore/Drill Rigs 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Cement and Mortar Mixers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Concrete/Industrial Saws o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Cranes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Crawler Tractors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Crushing/Proc. Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Excavators 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier FCNidifts 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0,00 Model Default lier Generator Sets 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Graders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Off-Highway Tractors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.00 I I I Model Default lier Off-Highway Trucks 0.50 3.29 3.57 0.13 0.12 0.01 1,279.89 0.41 Model Default lier Other Construction Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Other General lndusbial Equipmen1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Other Material Handling Equipment o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Pavers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Paving Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Plate Compactors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Pressure Washers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Pumps 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rollers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rough Ten-ain Forklifts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rubber lired Dozers o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Rubber Tired Loaders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.00 ' l l Model Default lier Scrapers 0.79 6.14 8.28 0.32 0.30 0.02 1,470.13 0.48 Model Default lier Signal Boards 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Skid Steer Loaders o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Surfacing Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier SWeepers/Scrubbers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Tractors/Loaders/Backhoes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Trenchers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Welders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Uaer-Oeflned Off-road Equipment tf non-default vehicles are used, please provide lnfonnatlon In 'Non-default Off-road Equipment' tab ROG co NO, PM10 PM2.5 so, CO2 CH4 Number of Vehicles Eauioment Tter T,oe oounds/da oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0,00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
I Grubbing/Land Clearing pounds per day 1.29 9.43 11.85 0.45 0.42 0.03 2,750.02 0.89 Grubbina/Land Clearina tons oerchase 0.00 0.03 0.04 0.00 0.00 0.00 9.08 0.00 Data Entry Worksheet
EXHIBIT 1 712
Road Construction Emissions Model, Version 8.1.0
Default Mitigation Option
Grading/Excavation Number of Vehicles Ovenideof Default ROG co NO, PM10 PM2.5 so, CO2 CH4 Default Equipment Tier (applicable only -.tien
Override of Default Number of Vehicles Proarsm-estimsta "Tier4 Mi ti ation"OolionSelectedl Eauioment Tier T,oe oounds/da oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav Model Default Tier AerialLifls 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Air Compressors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Bore/Drill Rigs 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Cement and Mortar Mixers 0,00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 Model Default lier Concrete/Industrial Saws 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Cranes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Crawler Tractors 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Crushing!Proc. Equipment o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Excavators 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Forklifts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Generator Sets 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Graders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Off-Highway Tractors 0.00 0.00 0.00 0,00 0,00 0.00 0.00 0,00 Model Default lier Off-Highway Trucks 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier other Construction Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier other General Industrial Equipmen1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier other Material Handling Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Pavers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Paving Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Plate Compactors o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Pressure Washers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Pumps 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rollers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rough Te1T0in Forklifts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier RubberTired DozeB 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Rubber Tired loaders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Saapers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Signal Boards o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo Model Default lier Skid Steer Loaders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Surfacing Equipment 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Model Default lier Sweepers/Scrubbers 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.00 ' l l Model Default lier Tractors/loaders/Backhoes 0.15 2.23 1.54 0.08 0.07 o.oo 301.58 0.10

1.00 I I I Model Default lier Trenchers 0.35 2.59 3.23 0.22 0.21 0.00 327.20 0.11 Model Default lier Welders 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Use,-Oeflned Off.road Equipment ff non-default vehicles are used, please provide infonnation in 'Non-default Off-road Equipment' tab ROG co NO, PM10 PM2.5 so, CO2 CH4 Number of Vehicles EnulnmentTier T= nnunds/da nnunds/dav nnunds/dav nounds/dav nnunds/dav nnunds/dav nni nds/dav nounds/dav NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NIA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Grading/Excavation pounds per day 0.50 4.82 4.77 0.30 0.28 0.01 628.78 0.20 Grading/Excavation tonsi:i,eri;,hase 0.01 0.06 0.06 0.00 0.00 0.00 8.30 0.00 Data Entry Worksheet
EXHIBIT 1 713
Road Construction Emissions Model, Version 8.1.0
Default Mitigation Option
DralnageMIHtleslSubgrade Number of Vehicles Ovenideof Default Default Equipment Tier (applicable only -.tien
Override of Default Number of Vehicles Proarsm-estimsta "Tier4 Miti ation"OolionSelectedl Eauioment Tier Model Default Tier
Model Default lier
1,00 ' l l Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
1,00 I I I Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Model Default lier
Use,-Oeflned Off.road Equipment ff non-default vehicles are used, please provide infonnation in 'Non-default Off-road Equipment' tab Number of Vehicles EnulnmentTier
NIA
NIA
NIA
NIA
NIA
NIA
NIA
Drainage/Utilitles/Sub--Grade
Drainage/Utilities/Sub--Grade
Data Entry Worksheet
ROG
oounds/da
AerialLifls 0.00
Air Compressors 0.00
Bore/Drill Rigs 0.22
Cement and Mortar Mixers 0,00
Concrete/Industrial Saws 0.00
Cranes 0.00
Crawler Tractors 0.00
Crushing!Proc. Equipment o.oo
Excavators 0.00
FOlidifts 0.00
Generator Sets 0.00
Graders 0.00
Off-Highway Tractors 0.00
Off-Highway Trucks 0.00
other Construction Equipment 0.35
other General Industrial Equipmenl 0.00
other Material Handling Equipment 0.00
Pavers 0.00
Paving Equipment 0.00
Plate Compactors o.oo
Pressure Washers 0.00
Pumps 0.00
Rollers 0.00
Rough Te1T0in Forklifts 0.00
RubberTiredDozeB 0.00
Rubber Tired loaders 0.00
Sa-spars 0.00
Signal Boards o.oo
Skid Steer Loaders 0.00
Surfacing Equipment 0.00
Sweepers/Scrubbers 0.00
Tractora/Loaders/Backhoes o.oo
Trenchers 0.00
Welders 0.00
ROG
T= nnunds/da

0.00 0.00
o.oo

0.00 0.00

0.00 0.00
pounds per day 0.56
tonsi:i,eri:i,hase 0.01
co NO,
oounds/dav oounds/dav

0.00 0.00

2.03 2,04

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

4.00 3.44

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
co NO,
nnunds/dav nnunds/dav

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

6.04 5.48
O.o7 0.06
PM10 PM2.5 so, CO2 CH4
oounds/dav oounds/dav oounds/dav oounds/dav oounds/dav

0.00 0.00

0.07 0.06

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
0,00 0,00

0.00 0.00

0.18 0.16

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.00 0.00
PM10 PM2.5
nounds/dav nnunds/da

0.00 0.00

0.00 0.00
o.oo o.oo

0.00 0.00

0.25 0.23

0.00 0.00

0.00 0.00 0.00

0.01 915A0 0.30
0,00 0.00 0.00

0.00 0.00 0.00

0.00 0.00 0.00
o.oo o.oo o.oo

0.00 0.00 0.00

0.00 0.00 0.00
o.oo 0.00 0,00

0.00 0.00 0.00

0.01 598.26 0.19

0.00 0.00 0.00

0.00 0.00 0.00
o.oo o.oo o.oo

0.00 0.00 0.00

0.00 0.00 0.00
o.oo o.oo o.oo

0.00 0.00 0.00

0.00 0.00 0.00
o.oo o.oo o.oo

0.00 0.00 0.00

0.00 0.00 0.00
so, CO2 CH4
nnunds/dav nni nds/dav nounds/dav

0.00 0.00 0.00

0.00 0.00 0.00
o.oo o.oo o.oo

0.00 0.00 0.00

0.02 1,513.67 0.49

0.00 17.48 0.01
EXHIBIT 1 714
Road Construction Emissions Model, Version 8.1.0
Paving
Default
Number of Vehicles
Mitigation Option
Override of Default
.2'!-_erride of Default Number of Vehicles �ram-estimate Default Equipment Tier (applicable only -.tien
"Tier 4 Mitigation"Oplion SelectedJ �mentlier
Use,-Oeflned Off.road Equipment
Model Default Tier Aerial Lifts
Model Default lier Air Compressors
Model Default Tier Bore/Drill Rigs
Model Default lier Cement and Mortar Mixers
Model Default lier Concrete/Industrial Saws
Model Default lier Cranes
Model Default lier Crawler Tractors
Model Default Tier Crushing!Proc. Equipment
Model Default Tier Excavators
Model Default lier FOlidifts
Model Default Tier Generator Sets
Model Default lier Graders
Model Default lier Off-Highway Tractors
Model Default Tier Off-Highway Trucks
Model Default Tier other Construction Equipment
Model Default lier Other General Industrial Equipmen1
Model Default lier Other Material Handling Equipment

1.00 Model Default lier Pavers
Model Default lier Paving Equipment
Model Default Tier Plate Compactors
Model Default lier Pressure Washers
Model Default lier Pumps
Model Default lier Rollers
Model Default lier Rough TelT8in Forklifts

1.00 Model Default lier Rubber Tired DozeB
Number of Vehicles
Model Default lier Rubber Tired loaders
Model Default lier Saapers
Model Default lier Signal Boards
Model Default lier Skid Steer Loaders
Model Default lier Surfacing Equipment
Model Default lier Sweepers/Scrubbers
Model Default lier Tractora/loaders/Backhoes
Model Default lier Trenchers
Model Default lier Welders
ff non-default vehicles are used, please provide infonnation in "Non-default Off-road Equipment' tab EqulpmentTier Type
Paving
P�na
lliA
lliA
N/A
mA
lliA
NIA
lliA
pounds per day
tons per phase
Total EmlHlona all Phaaea (tona per conatruc:tlon period)=> Equipment defauh values for horsepower and hours/day can be overridden in cells 0403 through 0436 and F403 through F436.

Equipment
Aeriallifls
Air Compressors
Bore/Drill Rigs
Cement and Mortar Mixers
Cona-ete/lndustrial Saws
Cranes
Crawle,Tractors
Crushing/Pree. Equipment
Excavators
Forklifts
Generator Sets
Graders
Off-Highway Tractors
Off-Highway Trucks
Othe, Construction Equipment
Othe, General lndustrlal Equipment
Other Material Handling Equipment
"""""
Paving Equipment
Plate Compactors
Data Entry Worksheet
Use, override of
Horsepower
Default Values
Horsepower
N
78 �1
!1
231
m
�
1�
�
M
1�7
ill
402
1n_
�
1M
1�
m
User override of
Hours/day
Default Values
Hours/day
ROG co NOX PM10 PM2.5 SOX CO2 CH4
e2unds/da:z: 1?2!:!nds/da:z: e!;!Unds/da:z: eounds/da:z: e!;!Unds/da;z'. e!;!Unds/da:z: e2unds/da:z: eounds/da:z:

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0,00 0,00 0.00 0.00 0.00 0,00 0,00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0,00 0.00 0.00 0.00 0.00 0.00 0,00 0.00

0.00 o.oo o.oo 0,00 0,00 o.oo 0.00 0,00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0,00 0.00 0.00 0.00 0.00 0.00 0,00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.19 2.88 1.88 0.09 0.08 0.00 455.22 0.15

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.68 3.11 7.13 0.32 0.30 0.01 827.00 0.27

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ROG co NOx PM10 PM2.5 so, CO2 CH4
oounds/da� 1?2!:!nds/da� e!;!Unds/da� eounds/da� e!;!Unds/da� e!;!Unds/da� �nds/da� eounds/da�

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo o.oo o.oo o.oo o.oo o.oo o.oo o.oo

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.88 5.99 9.01 0.41 0.38 0.01 1,282.22 0.41

0.00 0.03 0.04 0.00 0.00 0.00 6.35 0.00

0.02 0.19 0.21 0.01 0.01 0.00 41.20 0.01
EXHIBIT 1 715
Road Construction Emissions Model, Version 8.1.0
Pressure Washers 13 8
Pumps 84 8
Rollers 80 8
Rough Terrain Forklfts 100 8
RubberliredDozers 247 8
Rubber lired Loaders 203 8
Scrapers 367 8
Signal Boards 6 8
Skid Steer Loaders 65 8
Surfacing Equipment 263 8
Sweepers/Saubbers 84 8
Tractors/Loaders/Backhoes 97 8
Trenchers 78 8
Welders 46 8

END OF DATA ENTRY SHEET
Data Entry Worksheet
EXHIBIT 1 716

APPENDIX B

BIOLOGICAL RESOURCES REPORT
EXHIBIT 1 717

MOORE BIOLOGICAL CONSULTANTS
August5,2022
Mr. Charlie Simpson
BaseCamp Environmental
802 West Lodi Avenue
Lodi, CA 95240
Subject: "MORMON SLOUGH SEWER REHABILITATION PROJECT",
STOCKTON, SAN JOAQUIN COUNTY, CALIFORNIA: BIOLOGICAL

ASSESSMENT
Dear Charlie:

Thank you for asking Moore Biological Consultants to assist with the Mormon Slough Sewer Rehabilitation Project in Stockton, San Joaquin County, California (Figures 1 and 2). The purpose of this assessment is to describe existing biological resources in the project site, identify potentially significant impacts to biological resources from the project, and provide recommendations for how to reduce those impacts to a less-than-significant level. The work involved reviewing databases, aerial photographs, and documents, and conducting a field survey to document vegetation communities, potentially jurisdictional Waters of the U.S. and/or wetlands, and potentially suitable habitat for or presence of special-status species. This report details the methodology and results of our investigation.

Project Overview
The City of Stockton proposed to rehabilitate approximately 2,600 feet of existing 24-inch diameter, reinforced concrete sanitary sewer pipeline along the Mormon Slough channel upstream and downstream of Wilson Way, and in adjacent developed lands (see Site Plan in Attachment A). Rehabilitation will consist of replacement of the existing 24-inch pipeline with a 36-inch pipeline. 10330 Twin Cities Road, Suite 30 • Galt, CA 95632
(209) 745--1159 • Fax (209) 745-7513
e-mail: [email protected]
EXHIBIT 1 718
Source: California State
Automobile Association
Moore Biological
Consultants
i
9 FIGURE 1
18 1 Miles

PROJECT VICINITY
EXHIBIT 1 719
. Figure 2 USGS
Mormon Slough Sanitary
Sewer Rehabilitation Project
^_
EXHIBIT 1 720
Construction activity will primarily involve conventional open cut excavation, shoring where needed, removal of the existing pipeline in certain sections of the project, and placement of pipeline bedding, the pipeline and backfill material.

Bore & jack technology will be utilized for approximately 100 lineal feet of pipeline under the Wilson Way bridge. Following construction, the ground surface along the alignment will be restored to existing conditions and vegetation and wildlife habitats in the study area will be comparable to those prior to construction.

Methods
Prior to the field survey, we conducted a search of California Department of Fish and Wildlife's (CDFW) California Natural Diversity Database (CNDDB, 2021 ); an updated search was undertaken in July 2022 (CNDDB, 2022). The CNDDB search included the USGS 7.5-minute Stockton West and Stockton East topographic quadrangles, encompassing approximately 120+/- square miles surrounding the study area (Attachment B). The United States Fish and Wildlife Service (USFWSJ IPaC Trust Resource Report of Federally Threatened and Endangered species that may occur in or be affected by projects in the project vicinity was also reviewed (Attachment B). This information was used to identify special-status wildlife and plant species that have been previously documented in the vicinity or have the potential to occur based on suitable habitat and geographical distribution. Additionally, the CNDDB depicts the locations of sensitive habitats. The USFWS on-line-maps of designated critical habitat in the area were also downloaded.

A field survey was conducted on April 9, 2021. The survey area included the sewer alignment as well as adjacent areas that may be subject to construction disturbance, primarily within the Mormon Slough corridor. The survey consisted of walking throughout the study area making observations of habitat conditions and noting surrounding land uses, habitat types, and plant and wildlife species.

The fieldwork included an assessment of potentially jurisdictional Waters of the Mormon Slough Sewer Rehab: Biology 4 August5,2022
EXHIBIT 1 721
U.S. and wetlands as defined by the U.S. Army Corps of Engineers (ACOE, 1987; 2008) and a search for special-status species and suitable habitat for special-status species (e.g., blue elderberry shrubs, vernal pools). Trees in and near the study area were assessed for the potential use by nesting raptors, especially Swainson's hawk (Buteo swainsom). The grasslands in the study area and adjacent areas visible from the study area were searched for burrowing owls (Athene cunicularia) or ground squirrel burrows with evidence of past occupancy.

Under subcontract to Moore Biological, Salix Consulting, Inc. conducted an Aquatic Resources Delineation of the study area.

Results
GENERAL SETTING: The study area is located in Stockton, in San Joaquin, County California (Figure 1 ). The study area is in an Unnumbered Section within Township 1 North and Range 6 East of the USGS 7.5-minute Stockton West topographic quadrangle (Figure 2). The study area is at an elevation of approximately 20 feet above mean sea level.

The study area is primarily a swath of land within the Mormon Slough channel, extending generally east to west through urbanized Stockton (Figure 3 and photographs in Attachment C). The north west tip of the study area originates on East Worth Street and extends south, through an automotive storage yard, and in to the Mormon Slough channel. The study area then extends to the east, under the Wilson Way bridge for an additional 1,450 feet from the approximate center of the bridge.

Mormon Slough flows east to west through the east part of the study area in a relatively narrow well defined low-flow channel (see photographs in Attachment C). The inlet to a large box culvert is located approximately 320 feet east of the Wilson Way bridge. West of the culvert inlet, Mormon Slough flows are conveyed Mormon Slough Sewer Rehab: Biology 5 August 5,2022
EXHIBIT 1 722
J _ Project Site
/',./' Proposed Sewer Alignment
/'./ Limits of Disturbance
,,1 Figure 3
Moore Biological
Consultants
0 Map Date: 07/21/2022
Aerial Source: Google Earth (08/2019)
250 500
Feet w+,
s
AERIAL
Mormon Slough Sanitary
Sewer Rehabilitation Project
City of Stockton, San Joaquin County, CA
EXHIBIT 1 723
underground for several miles through downtown Stockton. To the west of the Wilson Way bridge, there is no defined low-flow channel and no evidence of recent surface flows.

The study area contains heaps of trash and debris from dumping and homeless encampments, several of which are located within the footprint of construction.

Surrounding land uses are primarily residential commercial, and industrial (Figure 3). This portion of Stockton is heavily developed and lands to the north of the study area are primarily residential and the lands to the south are primarily industrial.

VEGETATION: Portions of Mormon Slough were completely dry during the field survey, while other areas contained small pockets of water supporting patches of emergent wetland vegetation and other hydrophytes. Adjacent areas are sparsely vegetated with highly disturbed ruderal grasses and weeds, consisting almost entirely of non-native species.

Oats (Avena sp.), soft chess brome (Bromus hordeaceus), ripgut brome (B. diandrus), foxtail barley (Hordeum murinum), and perennial ryegrass (Lolium perenne) are some of the most common grasses in the ruderal grassland vegetation found within the study area. Other grassland species such as yellow star-thistle (Centaurea solstitalis), bull thistle (Cirsium vulgare), morning glory (Convolvulus arvensis), common sunflower (Helianthus annuus), prickly lettuce (Lactuca serriola), Canadian horseweed (Erigeron canadensis), and filaree (Erodium spp.) are intermixed with the grasses. There are patches of giant reed (Arundo donax) and tree-of-heaven (Ailanthus altissima) within the study area, primarily located along the north fence line in the east part of the study area.

Table 1 is a list of plant species observed in the study area.

Immediately upstream of the box culvert inlet, a low area ponds water and is vegetated with common tule (Schoenoplectus acutus) and lesser amounts of cattails (Typha sp.) (Figure 4 and photographs in Attachment C). The inlet is in a Mormon Slough Sewer Rehab: Biology 7 AugustS,2022
EXHIBIT 1 724
TABLE 1

PLANT SPECIES OBSERVED IN THE STUDY AREA
Ailanthus altissima
A/nus rhombifolia
Amsinckia menziesii
Arundo donax
Avena sp.

Bromus diandrus
Bromus hordeaceus
Calandrinia menziesii
Capsella bursa var. pastoris
Centaurea solstitialis
Convolulus arvensis
Cirsium vulgare
Cynara cardunculus
Cynodon dactylon
Cyperus eragrostis
Epilobium brachycarpum
Erigeron canadensis
Erodium botrys
Eucalyptus sp.

Galium aparine
Geranium dissectum
Helianthus annuus
Hordeum murinum
Jug/ans californica
Lactuca serriola
Lolium perenne
Malva neglecta
Malvella leprosa
Matricaria discoidea
Medicago polymorpha
Plantago lanceolata
Poa annua
Populus fremontii
Mormon Slough Sewer Rehab: Biology 8
tree-of-heaven
white alder
rancher's fireweed
giant reed
wild oat
ripgut brome
soft chess brome
red maids
shepherds purse
yellow star-thistle
morning glory
bull thistle
artichoke thistle
Bermuda grass
tall flat sedge
annual fireweed
Canadian horseweed
filaree
gum tree
stickyweed
dissected geranium
common sunflower
foxtail barley
California black walnut
prickly lettuce
perennial ryegrass
common mallow
alkali mallow
pineapple weed
California burclover
English plantain
annual blue grass
Fremont cottonwood
AugustS,2022
EXHIBIT 1 725
TABLE 1
PLANT SPECIES OBSERVED IN THE STUDY AREA (continued)
Quercus agrifolia
Quercus lobata
Rumex crispus
Salix sp.

Sa/sofa tragus
Senecio vulgaris
Sonchus asper
Typha sp.

Xanthium strumarium
coast live oak
valley oak
curly dock
willow
Russian thistle
common groundsel
spiny sow thistle
cattail
cocklebur
state of partial disrepair and some Mormon Sough flows trickle around the north edge of the box culvert inlet and flow west in to a low area between the box culvert inlet and the Wilson Way bridge. This low area supports a dense stand of emergent wetland vegetation, with common tule being the dominant species.

To the east of the emergent wetlands, Mormon Slough is best described as an ephemeral creek, conveying winter rains and summer nuisance water from agricultural lands to the east. Vegetation within and along the low-flow channel includes tall flat sedge (Cyperus eragrostis) and curly dock (Rumex crispus).

There are also some small seedlings and saplings such as willows ( Salix sp. ), black walnut (Jug/ans californica), and small cottonwoods (Populus fremontil) along the edges of the creek.

There are only a few trees in the study area. There is a notable valley oak (Quercus lobata) and a relatively large gum tree (Eucalyptus sp.) in the east part of the study area. Other trees near the study area are primarily ornamental species associated with residences nearby. No blue elderberry shrubs (Sambucus nigra ssp. caerulea) were observed within or adjacent to the study area.

Mormon Slough Sewer Rehab: Biology 9 AugustS,2022
EXHIBIT 1 726
Project Site
/',/ Proposed Sewer Alignment
/'.,/ Limits of Disturbance
Box Culvert
Emergent Wetland (0.165 acre)
D Intermittent Creek (0.280 acre)
Figure 4
0 Map Date: 07/29/2022
200
Feet
Moore Biological
Consultants Aerial Source: Google Earth (08/2019)
400 w+,

AQUATIC RESOURCES
Mormon Slough Sanitary
Sewer Rehabilitation Project
City of Stockton, San Joaquin County, CA
EXHIBIT 1 727
WILDLIFE: A variety of common bird species were observed in the study area.

American crow (Corvus brachyrhynchos), black phoebe (Sayornis nigricans), mourning dove (Zenaida macroura), Brewer's blackbird (Euphagus cyanocephalus), and house finch (Carpodacus mexicanus) are representative bird species observed in and near the study area (Table 2). All of these are species commonly found in urban areas in the greater project vicinity.

There are a few individual trees in and near the study area that are suitable for nesting raptors, including Swainson's hawks. Given the presence of trees and shrubs in and near the study area, and emergent wetland vegetation in the study area, it is likely one or more pairs of raptors and a variety of songbirds nest in and/or near the study area during most years. It is possible that ground-nesting songbirds such as killdeer and red-winged blackbird (Agelaius phoeniceus) nest in the grassland habitats in the study area. An American crow was observed nesting in a large tower near the east end of the study area during the survey.

A variety of mammals are likely to occur in the study area. While no mammals were observed in the study area during the recent survey; several California ground squirrel (Otospermophilus beechey1) burrows were observed. Other species such as raccoon (Procyon lotor), coyote ( Canis latrans), black-tailed hare (Lepus californicus), striped skunk (Mephitis mephitis), and Virginia opossum (Didelphis virginiana) are expected to occur in the greater project vicinity and may wander through the study area on occasion. A number of species of small rodents including mice (Mus musculus, Reithrodontomys megalotis, and Peromyscus maniculatus) and voles (Microtus californicus) also likely occur.

Based on habitat types present, only a few amphibian and reptile species are expected to use habitats in the study area. Although none were observed, common species such as western fence lizard (Sceloporus occidentalis), Pacific chorus frog (Pseudacris regilla), gopher snake (Pituophis melanoleucus), common king snake (Lampropeltis getulus), and common garter snake (Thamnophis sirtalis) are expected to occur at the study area.

Mormon Slough Sewer Rehab: Biology 11 AugustS,2022
EXHIBIT 1 728
TABLE 2

WILDLIFE SPECIES OBSERVED IN THE STUDY AREA
Birds
Rock dove
Mourning dove
Black phoebe
American crow
Northern mockingbird
European starling
Yellow-rumped warbler
House sparrow
White-crowned sparrow
Brewer's blackbird
House finch
Mammals
California ground squirrel
Columba livia
Zenaida macroura
Sayornis nigricans
Corvus brachyrhynchos
Mimus polyglottos
Sturnus vulgaris
Setophaga coronata
Passer domesticus
Zonotrichia leucophrys
Euphagus cyanocephalus
Carpodacus mexicanus
Otospermophilus beecheyi
WATERS OF THE U.S. AND WETLANDS: Waters of the U.S., including wetlands, are broadly defined under 33 Code of Federal Regulations (CFR) 328 to include navigable waterways, their tributaries, and adjacent wetlands. State and federal agencies regulate these habitats and Section 404 of the Clean Water Act requires that a permit be secured prior to the discharge of dredged or fill materials into any waters of the U.S., including wetlands. Some jurisdictional waters of the U.S. also fall under the jurisdiction of CDFW and/or the California Regional Water Quality Control Board (RWQCB).
"Waters of the U.S.", as defined in 33 CFR 328.4, encompasses Territorial Seas, Tidal Waters, and Non-Tidal Waters; Non-Tidal Waters includes interstate and intrastate rivers and streams, as well as their tributaries. The limit of federal Mormon Slough Sewer Rehab: Biology 12 AugustS,2022
EXHIBIT 1 729
jurisdiction of Non-Tidal Waters of the U.S. extends to the "ordinary high water mark". The ordinary high water mark is established by physical characteristics such as a natural water line impressed on the bank, presence of shelves, destruction of terrestrial vegetation, or the presence of litter and debris.

Jurisdictional wetlands are vegetated areas that meet specific vegetation, soil, and hydrologic criteria defined by the ACOE Wetlands Delineation Manual and Regional Supplement (ACOE, 1987; 2008). Jurisdictional wetlands are usually adjacent to or hydrologically associated with Waters of the U.S. Isolated wetlands are outside federal jurisdiction, but may be regulated by RWQCB under the State Wetlands Program.

Jurisdictional wetlands and Waters of the U.S. include, but are not limited to, perennial and intermittent creeks and drainages, lakes, seeps, and springs; emergent marshes; riparian wetlands; and seasonal wetlands. Wetlands and Waters of the U.S. provide critical habitat components, such as nest sites and a reliable source of water, for a wide variety of wildlife species.

There are approximately 0.280 acres of intermittent creek and 0.165 acres of emergent wetlands in the study area associated with Mormon Slough (see Aquatic Resources Delineation Map in Attachment D and photographs in Attachment C). No other areas meeting the technical and regulatory criteria of jurisdictional Waters of the U.S. or wetlands were observed in the study area.

As described above, Mormon Slough flows in to the study area from the east and continues west in a relatively narrow channel to the inlet to a large box culvert.

This section of Mormon Slough is best described as an intermittent creek, conveying winter rains and summer nuisance water from lands to the east. The emergent wetlands are in close proximity to the culvert inlet as well as in a low area between the box culvert inlet and the Wilson Way bridge. To the west of the Wilson Way bridge, there is no defined low-flow channel and no evidence of recent surface flows.

Mormon Slough Sewer Rehab: Biology 13 August5,2022
EXHIBIT 1 730
Mormon Slough flows in to the San Joaquin River, a navigable Water of the U.S., several miles west of the study area. Mormon Slough is jurisdictional Water of the U.S. due to its tributary relationship to the San Joaquin River.

SPECIAL-STATUS SPECIES: Special-status species are plants and animals that are legally protected under the state and/or federal Endangered Species Act or other regulations. The Federal Endangered Species Act (FESA) of 1973 declares that all federal departments and agencies shall utilize their authority to conserve endangered and threatened plant and animal species. The California Endangered Species Act (CESA) of 1984 parallels the policies of FESA and pertains to native California species.

Both FESA and CESA prohibit unauthorized "take" (i.e., killing) of listed species, with take broadly defined in both acts to include activities such as harassment, pursuit and possession. The federal Migratory Bird Treaty Act and Fish and Game Code of California protect special-status bird species year-round, as well as their eggs and nests during the nesting season. Fish and Game Code of California also provides protection for mammals and fish.

Special-status wildlife species also includes species that are considered rare enough by the scientific community and trustee agencies to warrant special consideration, particularly with regard to protection of isolated populations, nesting or denning locations, communal roosts, and other essential habitat. The presence of species with legal protection under the Endangered Species Act often represents a constraint to development, particularly when the species are wide-ranging or highly sensitive to habitat disturbance and where proposed development would result in a take of these species.

Special-status plants are those which are designated rare, threatened, or endangered and candidate species for listing by the USFWS. Special-status plants also include species considered rare or endangered under the conditions of Section 15380 of the California Environmental Quality Act Guidelines, such as Mormon Slough Sewer Rehab: Biology 14 AugustS,2022
EXHIBIT 1 731
those plant species identified on Lists 1A, 1 B and 2 in the Inventory of Rare and Endangered Vascular Plants of California (CNPS, 2022). Finally, special-status plants may include other species that are considered sensitive or of special concern due to limited distribution or lack of adequate information to permit listing or rejection for state or federal status, such as those included on CNPS List 3.

Table 3 provides a summary of the listing status and habitat requirements of special-status plant and wildlife species that have been documented in the greater project vicinity or for which there is potentially suitable habitat in the project area. This table also includes an assessment of the likelihood of occurrence of each of these species in the study area. The evaluation of the potential for occurrence of each species is based on the distribution of regional occurrences (if any), habitat suitability, and field observations.

SPECIAL-STATUS PLANTS: Species of special-status plants identified in the CNDDB (2022) search include alkali milk-vetch (Astragalus tener var. tener), heartscale (Atriplex cordulata), big tarplant (Blepharizonia plumosa), watershield (Brasenia schreben), palmate-bracted salty bird's-beak (Chloropyron palmatum), recurved larkspur (Delphinium recurvatum), San Joaquin spearscale (Extriplex joaquinana), woolly rose-mallow (Hibiscus lasiocarpos var. occidentalis), delta tule pea (Lathyrus jepsonii var. jepsonil), Sanford's arrowhead ( Sagittaria sanfordil), Suisun marsh aster (Symphotrichum lentum), and saline clover (Trifolium hydrophilum) (Table 3 and Attachment B). No additional special-status plants are identified in the USFWS IPaC Trust Resource Report (Attachment B).

Special-status plants generally occur in relatively undisturbed areas in vegetation communities such as vernal pools, marshes and swamps, seasonal wetlands, riparian scrub, chenopod scrub, and areas with unusual soils. None of these vegetation communities occur in the study area. The ruderal grasslands adjacent to the slough are highly disturbed and do not provide suitable habitat for any of the plants in Table 3 or any other special-status plants.

Mormon Slough Sewer Rehab: Biology 15 AugustS,2022
EXHIBIT 1 732
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3 Habitat Potential for Occurrence in the Study area PLANTS
Alkali milk- Astraga/us tener None None 1B Alkali vernal pools. Unlikely: there are no vernal pools in the study area. vetch var. tener The nearest occurrence of alkali milk-vetch in the CNDDB (2022) search area is approximately 2.5 miles
northwest of the study area.

Heartscale Atriplex None None 1B Valley and foothill Unlikely: the grassland in the study area is highly cordulata var grassland, chenopod disturbed and does not provide suitable habitat for cordulata scrub. heartscale. The nearest occurrence of this species in the CNDDB (2022) search area is an historical record
(1896) whose location is not known; the record is
mapped non-specifically in downtown Stockton,
approximately 1.5 miles northwest of the study area.

Big tarplant Blepharizonia None None 1B Valley and foothill Unlikely: the grasslands in the study area are highly plumosa grassland. disturbed and does not provide suitable habitat for big tarplant. The nearest occurrence of this species in the CNDDB (2022) search area is an historical record
(1874) whose location is not known; the record is
mapped non-specifically in downtown Stockton,
approximately 1.5 miles northwest of the study area.

Watershield Brasenia None None 2 Marshes and swamps. Unlikely: the wetted portion of Mormon Slough provides schreberi low quality potential habitat for this species, however, watershield is almost entirely restricted to restricted to tidal delta waterways several miles west and northwest
of the study area. The only occurrence of water shield in the CNDDB (2022) search area is an historical record is mapped non-specifically in downtown Stockton,
approximately 1.5 miles northwest of the study area.

Palmate- Chloropyron E E 1B Chenopod scrub, valley Unlikely: the study area does not provide suitable bracted salty palmatum and foothill grassland. habitat for this species. The nearest occurrence of bird's-beak palmate-bracted salty bird's-beak in the CNDDB (2022) search area is a historical record mapped nonspecifically in downtown Stockton, approximately 1.5 miles northwest of the study area.

Mormon Slough Sewer Rehab: Biology 16 AugustS,2022
EXHIBIT 1 733
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3 Habitat Potential for Occurrence in the Study area Recurved Delphinium None None 1B Chenopod scrub in Unlikely: the study area does not contain suitable habitat larkspur recurvatum alkaline soils. for this species. The CNDDB (2022) search area contains only one historical (1937) sighting of recurved larkspur, approximately 5.5 miles southeast of the study area.

San Joaquin Extriplex None None 1B Chenopod scrub, alkali Unlikely: the study area does not provide suitable spearscale joaquinana meadow, valley and habitat for this species. The nearest occurrence of San foothill grassland. Joaquin spearscale in the CNDDB (2022) search area is a historical record mapped non-specifically in downtown Stockton, approximately 1.5 miles northwest of the study area.

Woolly rose Hibiscus None None 2 Freshwater marshes and Unlikely: the wetted portion of Mormon Slough provides mallow Jasiocarpos var. swamps. low quality potential habitat for this species, however, occidentalis woolly rose mallow is almost entirely restricted to tidal delta waterways several miles west and northwest of the study area. The nearest occurrence of this species in
the CNDDB (2022) search area is approximately 5 miles
northwest of the study area.

Delta tule pea Lathyrus None None 1B Marshes and swamps. Unlikely: the wetted portion of Mormon Slough provides jepsonii var. low quality potential habitat for this species, however, jepsonii delta tule pea is almost entirely restricted to tidal delta waterways several miles west and northwest of the
study area. The nearest occurrence of delta tule pea in the CNDDB (2022) search area is an historical
population on Rough and Ready Island, approximately

4.5 miles west of the study area.

Sanford's Sagittaria None None 1B Standing or slow-moving Unlikely: the wetted portion of Mormon Slough provides arrowhead sanfordii freshwater ponds, low quality potential habitat for this species. The marshes, and ditches. nearest occurrence of Sanford's arrowhead in the CNDDB (2022) search area is an historical population
whose location is not known; the record is mapped
non-specifically in downtown Stockton, approximately

1.5 miles northwest of the study area.

Mormon Slough Sewer Rehab: Biology 17 AugustS,2022
EXHIBIT 1 734
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3 Habitat Potential for Occurrence in the Study area Suisun marsh Symphotrichum None None 1B Marshes and swamps. Unlikely: the wetted portion of Mormon Slough could aster /entum potentially support this species, however, Suisun marsh aster is almost entirely restricted to tidal delta waterways several miles west and northwest of the study area. The nearest occurrence of Suisun marsh aster in the
CNDDB (2022) search area is in the Calaveras River,
approximately 4 miles northwest of the study area.

Saline clover Trifolium None None 1B Marshes and swamps, Unlikely: the study area does not provide suitable hydrophilum mesic (wet) areas in valley habitat for this species. The nearest occurrence of and foothill grassland, saline clover in the CNDDB (2022) search area is an vernal pools. historical population mapped non-specifically in downtown Stockton, approximately 2.5 miles northwest
of the study area.

WILDLIFE
Birds
Least Bell's Vireo be/Iii E E N/A Nests in willow thickets Unlikely: there is no suitable habitat for least Bell's vireo vireo pusil/us and other shrubs, primarily in or near the study area and this species is not known in southern California from the area. The nearest occurrence of least Bell's riparian forests. vireo in the CNDDB (2022) search area is an historical (1878) population whose location is not known; the
record is mapped non-specifically in downtown
Stockton, approximately 1.5 miles northwest of the study area.

Swainson's Buteo swainsoni None T N/A Breeds in stands of tall Low: the grassland in the study area provides low hawk trees in open areas. quality, but potentially suitable foraging habitat for Requires adjacent suitable Swainson's hawk. This species may also nest in foraging habitats such as relatively large trees in and near the study area. There grasslands or alfalfa fields are numerous records of Swainson's hawks in the supporting rodents. CNDDB (2022) search area, including several records within a mile of the study area.

Mormon Slough Sewer Rehab: Biology 18 AugustS,2022
EXHIBIT 1 735
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3 Habitat Potential for Occurrence in the Study area Tricolored Agelaius tricolor None T N/A Requires open water and Unlikely: the emergent wetland vegetation (i.e., tules) blackbird protected nesting just east of the Wilson Way bridge provide potentially substrate, usually cattails suitable nesting habitat for tricolored blackbird. and riparian scrub with However, this species primarily nests in emergent surrounding foraging wetlands near large open water environments and habitat. agricultural lands. The nearest occurrence of this species in the CNDDB (2022) search area is a large
nonspecific record around the City of Stockton.

White-tailed Elanus Jeucurus None FP N/A Herbaceous lowlands with Unlikely: the grasslands in the study area provide low kite variable tree growth and quality, but potentially suitable foraging habitat for whitedense population of voles. tailed kite and this species may nest in large trees in and near the study area. The nearest occurrence of whitetailed kite in the CNDDB (2022) search area is approximately 1 mile southeast of the study area.

Burrowing owl Athene None SC N/A Open, dry annual or Unlikely: the on-study area grasslands are highly cunicularia perennial grasslands, disturbed and provide poor quality habitat for burrowing deserts and scrublands owl; only a few ground squirrel burrows were observed. characterized by low- No burrowing owls were observed in or adjacent to the growing vegetation. study area during the field survey and none of the burrows had evidence of past or current burrowing owl
occupancy. The nearest occurrence of this species in
the CNDDB (2022) is an older record (1993)
approximately 0.5 miles south of the study area and was found within a parking lot at the San Joaquin County
fairgrounds.

Mammals
Riparian brush Sylvilagus E E N/A Riparian thickets in None: the study area and adjacent areas do not provide rabbit bachmani Stanislaus and southern suitable habitat for riparian brush rabbit. There are no riparius San Joaquin Counties. riparian thickets in the study area to support this species. There are no occurrences of riparian brush
rabbit recorded in the CNDDB (2022) in the search area.

Mormon Slough Sewer Rehab: Biology 19 AugustS,2022
EXHIBIT 1 736
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3
Reptiles & Amphibians
California tiger Ambystoma T T N/A
salamander californiense
Giant garter Thamnophis T T N/A
snake gigas
Western pond Emys None SC N/A
turtle marmorata
Western Spea None SC N/A
spadefoot hammondii
Fish
Delta smelt Hypomesus T E N/A
transpacificus
Mormon Slough Sewer Rehab: Biology
Habitat Potential for Occurrence in the Study area
Seasonal water bodies Unlikely: there is no suitable habitat within or near the without fish (i.e., vernal study area for California tiger salamander. This species pools and stock ponds) occurs in the transitional bands between the valley floor and grassland/ woodland and foothills. The nearest occurrence of California tiger habitats with summer salamander in the CNDDB (2022) search area is a refugia (i.e., burrows). historical record (1923) in downtown Stockton, approximately 2.5 miles northwest of the study area.

The study area is not within designated critical habitat for California tiger salamander (USFWS, 2005a).

Freshwater marsh and low Unlikely: this section of Mormon Sough does not provide gradient streams; also suitable aquatic habitat for giant garter snake, primarily adapted to drainage due to its ephemeral flow regime. The nearest canals and irrigation occurrence of this species in the CNDDB (2022) search ditches, primarily for area is approximately 3 miles northeast of the study dispersal or migration. area.

Ponds, marshes, streams, Unlikely: this section of Mormon Sough does not provide and ditches with emergent suitable aquatic habitat for western pond turtle, primarily aquatic vegetation and due to its ephemeral flow regime. There are no basking areas. occurrences of this species in the CNDDB (2022) search area.

Breeds and lays eggs in Unlikely: there is no suitable aquatic habitat for western seasonal water bodies spadefoot in or near the study area. The nearest such as deep vernal pools occurrence of this species in the CNDDB (2022) search or stock ponds. area is approximately 3 miles southwest of the study area.

Shallow lower delta Unlikely: there is no suitable aquatic habitat in the study waterways with area for delta smelt. The nearest occurrence of this submersed aquatic plants species in the CNDDB (2022) approximately 5.5 miles and other suitable refugia. northwest of the study area. The study area is not in designated critical habitat for delta smelt (USFWS,
1994).
20 AugustS,2022
EXHIBIT 1 737
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal State CNPS
Name Scientific Name Status 1 Status2 List3 Habitat Potential for Occurrence in the Study area Longtin smelt Spirinchus C T N/A Brackish estuarine Unlikely: there is no suitable aquatic habitat in the study thaleichthys habitats. area to support this species. The nearest occurrence of longfin smelt in the CNDDB (2022) approximately 6
miles northwest of the study area.

Steelhead- Oncorhynchus T None N/A Riffle and pool complexes Unlikely: Central Valley steelhead may have historically Central Valley mykiss irideus with adequate spawning utilized this section of Mormon Slough, but the slough is DPS pop. 11 substrates within Central now piped underground through downtown Stockton.

Valley drainages. Central Valley steelhead could potentially migrate up and down this slough during flood flows. The CNDDB
(2022) contains records of steelhead within Mormon
Slough.

Green Acipenser T None N/A Spawns in the Unlikely: Mormon Slough does not provide suitable sturgeon medirostris Sacramento, Feather and aquatic habitat to support green sturgeon. The nearest Yuba Rivers and possibly occurrence of this species in the CNDDB (2022) search in Upper Stanislaus and area is approximately 3.5 miles west of the study area.

San Joaquin River. Delta
important for rearing.

Invertebrates
Valley elderberry Desmocerus T None N/A Elderberry shrubs, usually Unlikely: there are no blue elderberry shrubs in or near longhorn beetle californicus in Central Valley riparian the study area. There are no occurrences of valley di morph us habitats. elderberry longhorn beetle recorded in the CNDDB (2022) in the search area.

Vernal pool Branchinecta T None N/A Vernal pools Unlikely: there are no vernal pools in the study area. fairy shrimp lynchi There are no occurrences of vernal pool fairy shrimp recorded in the CNDDB (2022) in the search area. The
study area is not within designated critical habitat for vernal pool fairy shrimp (USFWS, 2005b ).

Mormon Slough Sewer Rehab: Biology 21 AugustS,2022
EXHIBIT 1 738
TABLE 3

SPECIAL-STATUS PLANT AND WILDLIFE SPECIES DOCUMENTED OR POTENTIALLY-OCCURRING IN THE PROJECT VICINITY Common Federal
Name Scientific Name Status 1
Vernal pool Lepidurus E
tadpole shrimp packardi
Monarch
butterfly
Danaus
plexippus
C
State
Status2
None
None
1 T= Threatened; E = Endangered; C = Candidate.

CNPS
List3
N/A
N/A
Habitat
Vernal pools
Variety of habitats in
California; larvae
dependent on milkweed.

Overwinters primarily
along the coast.

Potential for Occurrence in the Study area
Unlikely: there are no vernal pools in the study area.

There are no occurrences of vernal pool tadpole shrimp
recorded in the CNDDB (2022) in the search area. The
study area is not within designated critical habitat for vernal pool tadpole shrimp (USFWS, 2005b).

Unlikely: monarch butterfly may fly over the study area during its migration, but would not be expected to occur in the study area due to a lack of suitable habitat; no milkweed plants were observed. There are no
occurrences of this species in the CNDDB (2022)
search area.
2 T = Threatened; E = Endangered; SC=State of California Species of Special Concern; FP = Fully Protected Species. 3 CNPS List 1 B includes species that are rare, threatened, or endangered in California and elsewhere; List 2 includes plants that are rare, threatened or endangered in California but are more common elsewhere.

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EXHIBIT 1 739
Sanford's arrowhead could potentially occur within Mormon Slough, although the habitat suitability is very low. This species is known to occur in standing or slowmoving freshwater ponds, marshes, and ditches. Sanford's arrowhead is primarily found in delta waterways several miles west of the study area and there is only one occurrence of this in the 120+/- square mile CNDDB (2022) search area. Due to being so far east and well outside lands with tidal influence, Mormon Slough does not provide suitable habitat for any of the other specialstatus plants in Table 3 that are associated with aquatic habitats.

SPECIAL-STATUS WILDLIFE: The potential for intensive use of habitats within the study area by special-status wildlife species is generally low. Special-status wildlife species that have been recorded in greater project vicinity in the CNDDB (2022) include least Bell's vireo (Vireo be/Iii pusillus), Swainson's hawk, tricolored blackbird (Agelaius tricolor), white-tailed kite (Elanus leucurus), burrowing owl, California tiger salamander (Ambystoma californiense), giant garter snake (Thamnophis gigas), western spadefoot (Spea hammondil), delta smelt (Hypomesus transpacificus), longfin smelt ( Spirinchus thaleichthys), and Central Valley steel head ( Oncorhynchus mykiss).

Although not included in the CNDDB within the search area, riparian brush rabbit (Sylvilagus bachmani riparius), green sturgeon (Acipenser medirostris), valley elderberry longhorn beetle (Desmocerus californicus dimorphus), vernal pool fairy shrimp (Branchinecta lynch,), vernal pool tadpole shrimp (Lepidurus packard1), and monarch butterfly (Danaus plexippus) were added to Table 3 because they are included in the USFWS IPaC Trust Resource Report (Attachment B). Western pond turtle (Emys marmorata) was added to Table 3 because this turtle is known to occur in similar drainages in the general project vicinity.

The study area and surrounding areas may have provided habitat for the specialstatus wildlife species listed in Table 3 at some time in the past. However, development, and construction and maintenance of roads and utilities, have Mormon Slough Sewer Rehab: Biology 23 AugustS,2022
EXHIBIT 1 740
substantially modified natural habitats within the greater project vicinity, including within the study area. Of the wildlife species identified in the CNDDB, Swainson's hawk, burrowing owl, tricolored blackbird, and western pond turtle are the only species with potential to occur in the study area on more than a transitory or very occasional basis. The birds could be disturbed by noise if they nested in or near the study area during construction and western pond turtle could be disturbed if it is present within Mormon Slough or nested adjacent to the slough during project construction.

SWAINS0N'S HAWK: The Swainson's hawk is a migratory hawk listed by the State of California as a Threatened species. The Migratory Bird Treaty Act and Fish and Game Code of California protect Swainson's hawks year-round, as well as their nests during the nesting season (March 1 through September 15).

Swainson's hawks occur in the Central Valley primarily during their breeding season, a population is known to winter in the San Joaquin Valley.

Swainson's hawks prefer nesting sites that provide sweeping views of nearby foraging grounds consisting of grasslands, irrigated pasture, hay, and wheat crops. Most Swainson's hawks are migratory, wintering in Mexico and breeding in California and elsewhere in the western United States. This raptor generally arrives in the Central Valley in mid-March, and begins courtship and nest construction immediately upon arrival at the breeding sites. The young fledge in early July, and most Swainson's hawks leave their breeding territories by late August.

The CNDDB (2022) contains several records of nesting Swainson's hawk in the greater project vicinity, including several within a mile of the study area. There are a few suitable nest trees in the study area and several large trees in close proximity to the study area. Although the study area is within a heavily developed portion of Stockton, annual cropland and grasslands in the region provide suitable foraging habitat for this species. No Swainson's hawks were observed in Mormon Slough Sewer Rehab: Biology 24 August5,2022
EXHIBIT 1 741
the study area during the 2021 survey, which was conducted near the beginning of the nesting season of this species.

The project will participate in the San Joaquin County Multi-Species Habitat Conservation and Open Space Plan (HCP) (SJCOG, 2000). Standard Incidental Take Minimization Measures (ITMMs) under the HCP outline protective measures for Swainson's hawk. In the event that construction commences during the nesting season (i.e., if construction starts between March 1 and August 31) and Swainson's hawks are nesting in or adjacent to the study area, a construction setback from the nest tree would be required until nesting is complete. The setback is calculated as twice the diameter of the dripline of the nest tree as measured from under the nest, and is usually less than 100 feet.

BURROWING OWL: The Migratory Bird Treaty Act and Fish and Game Code of California protect burrowing owls year-round, as well as their nests during the nesting season (February 1 through August 31 ). Burrowing owls are a year-long resident in a variety of grasslands as well as scrub lands that have a low density of trees and shrubs with low growing vegetation; burrowing owls that nest in the Central Valley may winter elsewhere.

The primary habitat requirement of the burrowing owl is small mammal burrows for nesting. The owl usually nests in abandoned ground squirrel burrows, although they have been known to dig their own burrows in softer soils. In urban areas, burrowing owls often utilize artificial burrows including pipes, culverts, and piles of concrete pieces. This semi-colonial owl breeds from March through August, and is most active while hunting during dawn and dusk. The nearest record of this species in the CNDDB (2022) search area is approximately 0.5 miles south of the study area.

The intensity of development surrounding the study area reduces the likelihood of burrowing owls using the study area for nesting. No burrowing owls were observed in the study area during the recent survey. Only a few ground squirrel Mormon Slough Sewer Rehab: Biology 25 August 5,2022
EXHIBIT 1 742
burrows were observed, none of which had evidence of past or current burrowing owl occupancy. This species may utilize habitats in the study area for nesting in the future If burrow habitat is available.

Standard ITMMs under the HCP outline protective measures for burrowing owl.

If construction is scheduled to commence outside the nesting season (i.e., if construction starts between September 1 and January 31) and burrowing owls are present in the study area, they can be passively relocated. In the event that construction commences during the nesting season and burrowing owls are present in the study area, a 250-foot construction setback from the natal burrow would be required until nesting is complete.

TRICOLORED BLACKBIRD: The tricolored blackbird is a State of California Species threatened species and is also protected by the federal MBTA and Fish and Game Code of California. Tricolored blackbirds are colonial nesters requiring very dense stands of emergent wetland vegetation and/or dense thickets of wild rose or blackberries for nesting. Preferred nesting substrates are expansive stands of cattails and tules adjacent to open water. There is a large, nonspecific record of nesting tricolored blackbird in the CNDDB (2022) encompassing the city of Stockton, including the study area.

Tricolored blackbirds were not observed in the study area during the field survey. Within the study area, nesting habitat is limited and fragmented with the most suitable habitat being the large patch of tules and cattails between the inlet to the box culvert and the Wilson Way bridge. However, this species primarily nests in emergent wetlands near large open water environments and agricultural lands, neither of which are present in the study area. Although the patch of tules and cattails is small and surrounded by development, tricolored blackbirds could potentially nest in this area in future years.

Pursuant to the HCP, if construction is scheduled to commence during the tricolored blackbird nesting season (i.e., if construction starts between March 1 Mormon Slough Sewer Rehab: Biology 26 AugustS,2022
EXHIBIT 1 743
and June 30) and tricolored blackbirds are present in the study area, a 500-foot construction setback from the nests would be required until nesting is complete.

WESTERN POND TURTLE: The western pond turtle is a state species of concern, but is not a listed species at the state or federal level. Western pond turtles are associated with permanent or nearly permanent bodies of water with adequate basking sites such as logs, rocks or open mud banks. Pond turtles construct nests in sandy banks along slow-moving streams and ponds in the spring and the young usually hatch in 2 to 3 months. There are no records of western pond turtle in the CNDDB (2022) search area.

Mormon Slough is ephemeral and is dry much of the year. Western pond turtles are known to occur in similar drainages in the general region and could potentially swim and bask within Mormon Slough if adequate aquatic conditions are met. Although the grasslands surrounding the slough are highly disturbed, this species could potentially nest in upland habitats near the creek.

Pursuant to the HCP, Mormon Slough is considered "potential habitat" for western pond turtle, triggering an automatic "no construction" buffer extending 300 feet from the centerline of the creek, unless a buffer reduction is granted by SJCOG. Buffer reductions are common for parcels along drainages and will be needed for this project. Standard ITMMs related to preconstruction surveys for western pond turtle will still be required, and temporary construction setbacks from nests will be implemented in the event active nests are located.

OTHER SPECIAL-STATUS SPECIES: A few other special-status birds may fly over or forage in the area on occasion, but would not be expected to nest in the study area. The study area lacks riparian habitat vegetation to support nesting least Bell's vireo. There is no suitable riparian scrub habitat to support riparian brush rabbit. The study area does not provide suitable aquatic habitat for any specialstatus fish, or California tiger salamander. There are no blue elderberry shrubs in the study area, precluding the potential occurrence of valley elderberry Mormon Slough Sewer Rehab: Biology 27 August5,2022
EXHIBIT 1 744
longhorn beetle. There are no vernal pools or seasonal wetlands in the study area for vernal pool branchiopods (i.e., fairy and tadpole shrimp). Finally, monarch butterfly could conceivably fly over the study area during its migration, but is unlikely to utilize the study area in a meaningful capacity; no areas of milkweed were observed and this species primarily overwinters much closer to the coast of California.

While Mormon Slough is considered "potential habitat" for giant garter snake pursuant to the HCP, this section of the slough is entirely unsuitable for this species. The section of Mormon Slough in the study area is separated from delta waterways by the box culvert, precluding movement of giant garter snakes in to the study area from the delta. Due to its flow regime, the section of Mormon Slough in the study area also does not contain the requisite habitat components of this species.

SAN JOAQUIN COUNTY MUL Tl-SPECIES HABITAT CONSERVATION AND OPEN SPACE PLAN (HCP): The project will participate in the San Joaquin County Multi-Species Habitat Conservation and Open Space Plan (HCP) (SJCOG, 2000). The HCP involves the payment of fees and implementation of ITMMs to avoid impacts on nesting birds and other special-status species. The Mormon Slough corridor is mapped as "Natural Lands" in the HCP, while adjacent developed areas are mapped as "Fee Exempt" (Attachment E). The HCP per-acre fee for Natural Lands is currently $19,561.00 per acre.

Due to the need for permits from ACOE and CDFW for work in Mormon Slough, the project had be approved for participation in the plan by SJCOG. Seeking approval for participation is routine for projects that also require permits from regulatory agencies for work in jurisdictional aquatic habitats. In January 2022, the project was approved to participate in the HCP by Habitat Technical Advisory Committee (HTAC) and SJOCG Board.

Mormon Slough Sewer Rehab: Biology 28 August5, 2022
EXHIBIT 1 745
CRITICAL HABITAT: The study area is not within designated critical habitat of California red-legged frog (USFWS, 2006), California tiger salamander (USFWS, 2005a), federally listed vernal pool shrimp or plants (USFWS, 2005b ), delta smelt (USFWS, 1994), valley elderberry longhorn beetle (USFWS, 1980), Central Valley steelhead (NOAA, 2005), green sturgeon (NOAA, 2005) or any other federally listed species (Attachment E).

Conclusions and Recommendations
• The study area is in in downtown Stockton and consists of the Mormon Slough channel and adjacent industrial land. The area has been overtaken by the homeless, with trash and encampments throughout much of the project footprint. No sensitive natural communities were observed in the study area; the habitats are highly disturbed and biologically unremarkable. • There are approximately 0.280 acres of intermittent stream and 0.165 acres of emergent wetlands in the study area associated with Mormon Slough. • Avoidance of jurisdictional Waters of the U.S. and wetlands and wetlands is recommended, to the maximum extent practicable. With the exception of three areas where the sewer line must cross the creek, the active channel of Mormon Slough will be avoided. Construction of the project is anticipated to involve 0.11 acres of temporary impacts to jurisdictional Waters of the U.S. and wetlands.
• Permits from ACOE, CDFW, RWQCB, and the Central Valley Flood Protection Board (CVFPB) will be needed prior to the placement of any fill material (e.g., culverts, fill dirt, rock) in Mormon Slough. As the estimated fill (i.e., temporary disturbance) in Waters of the U.S. is expected to be only

0.11 acres, the work would be authorized by ACOE under a Nationwide Permit (NWP).

Mormon Slough Sewer Rehab: Biology 29 August 5,2022
EXHIBIT 1 746
• Due to a lack of suitable habitat, it is unlikely that special-status plants occur in the study area.
• With the exception of Swainson's hawk, burrowing owl, tricolored blackbird, and western pond turtle, no special-status wildlife species are expected to occur in or near the study area on more than a very occasional or transitory basis.
• Standard Take Avoidance measures outlined in the HCP for nesting Swainson's hawks and burrowing owl will be required. These will include pre-construction surveys for nesting Swainson's hawks within 0.5 miles of the study area for construction activities between March 1 and September 15 and pre-construction surveys for nesting burrowing owls within 250 feet of the study area for construction activities between February 1 through August 31 . If active nests are found, temporal restrictions on construction that are specified in the HCP will be required.
• Standard Take Avoidance measures outlined in the HCP for nesting tricolored blackbirds may be required. These would include pre-construction surveys for construction activities during the nesting season. If active nests are found, a 500-foot construction setback from the nests would be required until nesting is complete.
• Due to a lack of suitable habitat, giant garter snake and western pond turtle are not expected to occur in the study area. Nevertheless, standard Take Avoidance measures for these species outlined in the HCP, primarily consisting of pre-construction surveys, are expected to be included in the ITMMs.
• Trees, shrubs, and grasslands in and near the study area could be used by birds protected by the MBTA and/or Fish and Game Code of California, such as white-tailed kite, loggerhead shrike, and red-winged blackbird.

Mormon Slough Sewer Rehab: Biology 30 August5,2 02 2
EXHIBIT 1 747
Standard Take Avoidance measures outlined in the HCP for nesting birds will be required within 14 days of the start of construction. If active nests are found, restrictions on construction that are specified in the HCP will be required. These setbacks vary by species.
• The study area is not within areas that are designated as critical habitat for federally listed species.

Thank you, again, for asking Moore Biological Consultants to assist with the project. Please call me at (209) 745-1159 with any questions.

Sincerely,
Diane S. Moore, M.S.

Principal Biologist
References and Literature Consulted
ACOE (U.S. Army Corps of Engineers). 1987. Technical Report Y87-1. U.S.

Army Corps of Engineers Waterways Experiment Station, Vicksburg, Ml.

ACOE. 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region. U.S. Army Engineer Research and Development Center, Vicksburg, MS. September.

CDFG (California Department of Fish and Game). 1994. Staff Report regarding Mitigation for Impacts to Swainson's Hawks (Buteo Swainsom) in the Central Valley of California. November.

CDFG. 2012. Staff Report on Burrowing Owl Mitigation. State of California, Natural Resource Agency, Department of Fish and Game. March 7.

Mormon Slough Sewer Rehab: Biology 31 August 5,2022
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CNDDB (California Natural Diversity Database). 2021. California Department of Fish and Wildlife's Natural Heritage Program, Sacramento, California.

CNDDB. 2022. California Department of Fish and Wildlife's Natural Heritage Program, Sacramento, California.

California Native Plant Society, Rare Plant Program. 2022. Inventory of Rare and Endangered Plants of California (online edition, v9-01 1.0). Website http://www.rareplants.cnps.org
National Oceanic and Atmospheric Administration (NOAA). 2005. Endangered and Threatened Species; Designation of Critical Habitat for Seven Evolutionarily Significant Units of Pacific Salmon and Steelhead in California; Final Rule.

Federal Register 70 (170): 52488-52585. September 2, 2005.

NMFS 2009. Endangered and Threatened Wildlife and Plants: Final Rulemaking to Designate Critical Habitat for the Threatened Southern Distinct Population Segment of North American Green Sturgeon, Final Rule. Federal Register 74 (195): 52300-52351.

Salix Consulting, Inc. 2022. Aquatic Resources Delineation for the +/- 10-acre Mormon Slough Sewer Rehabilitation Project Study Area. Prepared for the City of Stockton. July.

Sawyer & Keeler-Wolf. 1995. A Manual of California Vegetation. California Native Plant Society, Sacramento. California.

SJCOG (San Joaquin Council of Governments). 2000. San Joaquin County Multi-Species Habitat Conservation and Open Space Plan (SJMSCP). Stockton, California. November 15.

USFWS (United States Fish and Wildlife Service). 1980. Part 11, Department of the Interior, Fish and Wildlife Service. 50 CFR Part 17. Listing the Valley Elderberry Longhorn Beetle as a Threatened Species with Critical Habitat.

Federal Register 45 No. 155, pp. 52803-52807, August 8.

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USFWS. 1994. Final Critical Habitat for the Delta Smelt (Hypomesus transpacificus). Federal Register Vol. 59, No. 242, December 19, 1994, pp. 65256 - 65279.

USFWS. 2005a. Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the California Tiger Salamander, Central Population; Final Rule. Federal Register Vol. 70, No. 162, August 23, 2005, pp. 49390 - 49458.

USFWS. 2005b. Part II, Department of the Interior, Fish and Wildlife Service. 50 CFR Part 17: Endangered and Threatened Wildlife and Plants; Final Designation of Critical Habitat for Four Vernal Pool Crustaceans and Eleven Vernal Pool Plants in California and Southern Oregon; Evaluation and Economic Exclusions from August 2003 Final Designation, Final Rule. Federal Register Vol. 70,No. 154,August 11.

USFWS. 2006. Part II, Department of the Interior, Fish and Wildlife Service. 50 CFR Part 17: Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for California Red-Legged Frog, and Special Rule Exemption Associated with Final Listing for Existing Routine Ranching Activities, Final Rule.

Federal Register Vol. 71, No. 71, April 13.

USFWS. 2017. Framework for Assessing Impacts to the Valley Elderberry Longhorn Beetle (Desmocerus californicus dimorphus). U.S. Fish and Wildlife Service; Sacramento, California. 28pp.

Mormon Slough Sewer Rehab: Biology 33 August 5,2022
EXHIBIT 1 750
Attachment A
Site Plan
EXHIBIT 1 751

JEF ERSON ST
EXHIBIT 1 752
Attachment B
CNDDB Summary Report and Exhibits & USFWS
IPaC Trust Report
EXHIBIT 1 753
Wildlife
EXHIBIT 1 754
Wildlife
EXHIBIT 1 755

CNDDB PLANT
Mormon Slough Sanitary Sewer Rehabilitation Project
City of Stockton, San Joaquin County, CA
Map Date: 07121/2022; Source: CDFW
0 0.75
1 .
5 Miles
EXHIBIT 1 756
Mormon Slough Sanitary Sewer Rehabilitation Project
City of Stockton, San Joaquin County, CA
Map Date: 07121/2022; Source: CDFW
0 2-1

0.75 1
.
5 Miles
EXHIBIT 1 757
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IPaC U.S. Fish & Wildlife Service
IPaC resource list
This report is an automatically generated list of species and other resources such as critical habitat (collectively referred to astrust resource� under the U.S. Fish and WildlifeService's (USFWS) jurisdiction that are known or expected to be on or near the project areEeferenced below. The list may also include trust resources that occur outside of the project are�ut that could potentially be directly or indirectly affected by activities in the project area.

However, determining the likelihood and extent of effects a project may have on trust resources typically requires gathering additional site-specific (e.g., vegetation/species surveys) and project-specific (e.g., magnitude and timing of proposed activities) information.

Below is a summary of the project information you provided and contact information for the USFWS office(s)with jurisdiction in the defined project areaPlease read the introduction to each section thatfollows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additionalinformation applicable to the trust resources addressed in that section.

Location
San Joaquin County, California
Local office
Sacramento Fish And Wildlife Office
\. (916) 414-6600
ID (916) 414-6713
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 1/14 EXHIBIT 1 758
7/20/22, 10:21 AM
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
IPaC: Explore Location resources
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Endangered species
This resource list is for informational purposes only and does not constitute an analysis of project level impacts.

The primary information used to generate this list is the known or expected range of each species. Additional areas of influence (AOI) for species are also considerecAn AOI includes areas outside of the species range if the species could be indirectly affected by activities in that area (e.g., placing a dam upstream of a fish population even if that fish does not occur at the dam site, may indirectly impact the species by reducing or eliminating water flow downstream). Because species can move, and site conditions can change, the species on this list are not guaranteed to be found on or near the project areaTo fully determine any potential effects to species, additional site-specific and project-specific information is often required.

Section 7 of the Endangered Species Actrequires Federal agencies to "request of the Secretary information whether any species which is listed or Rroposed to be listed may be present in the area of such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal agency. A letter from the local office and a species list which fulfills this requirement canonly be obtained by requesting an official species list from either the Regulatory Review section in IPaC (see directions below) or from the local field office directly.

For project evaluations that require USFWS concurrence/review, please return to the IPaC website and request an official species list by doing the following:

1. Draw the project location and click CONTINUE.

2. Click DEFINE PROJECT.

3. Log in (if directed to do so).

4. Provide a name and description for your project.

5. Click REQUEST SPECIES LIST.

Listed speciesl and their critical habitats are managed by thEEcological Services Program of the U.S. Fish and Wildlife Service (USFWS) and the fisheries division of the National Oceanic and Atmospheric Administration (NOAA Fisheries).

Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown on this list. Please contactNOAA Fisheries for�P-ecies under their jurisdiction.

1. Species listed under theEndangered Species Actare threatened or endangered; IPaC also shows species that are candidates, or proposed, for listingSee the listing status �gg for more information. IPaC only showsspecies that are regulated by USFWS (see FAQ). https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 3/14 EXHIBIT 1 760
7/20/22, 10:21 AM IPaC: Explore Location resources

2. NOAA Fisheries also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.

The following species are potentially affected by activities in this location:

Mammals
NAME
Riparian Brush Rabbit Sylvilagus bachmani riparius
Wherever found
No critical habitat has been designated for this species. httgs:/ /ecos.fws.gov/ecQ.L_species/6189
Reptiles
NAME
Giant Garter Snake Thamnophis gigas
Wherever found
No critical habitat has been designated for this species. httgs:/ I ecos. fws.gov I ecQ.L_speci es/ 4482
Amphibians
NAME
California Tiger Salamander Ambystoma californiense
There is final critical habitat for this species The location of the critical habitat is not available.
httgs:/ /ecos.fws.gov/ecQ.L_species/2076
Fishes
NAME
Delta Smelt Hypomesus transpacificus
Wherever found
There is final critical habitat for this species The location of the critical habitat is not available.
httgs:/ /ecos.fws.gov/ecQ.L_species/321
Insects
NAME
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources STATUS
Endangered
STATUS
Threatened
STATUS
Threatened
STATUS
Threatened
STATUS
4/14
EXHIBIT 1 761
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Monarch Butterfly Danaus plexippus
Wherever found
No critical habitat has been designated for this species. httgs://ecos.fws.gov/ecQ.L.species/9743
Valley Elderberry Longhorn Beetle Desmocerus californicus dimorphus
Wherever found
There is final critical habitat for this species The location of the critical habitat is not available.
httgs:/ / ecos. fws.gov / ecQ.L.speci es/7 850
Crustaceans
NAME
Vernal Pool Fairy Shrimp Branchinecta lynchi
Wherever found
There is final critical habitat for this species The location of the critical habitat is not available.
httgs:/ / ecos. fws.gov / ecQ.L.speci es/ 498
Vernal Pool Tadpole Shrimp Lepidurus packardi
Wherever found
There is final critical habitat for this species The location of the critical habitat is not available.
httgs:/ / ecos. fws.gov / ecQ.L.species/2246
Flowering Plants
NAME
Palmate-bracted Bird's Beak Cordylanthus palmatus
Wherever found
No critical habitat has been designated for this species. httgs:/ /ecos.fws.gov/ecQ.L.species/1616
Critical habitats
Candidate
Threatened
STATUS
Threatened
Endangered
STATUS
Endangered
Potential effects to critical habitat(s) in this location must be analyzed along with the endangered species themselves.

THERE ARE NO CRITICAL HABITATS AT THIS LOCATION.
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Migratory birds
Certain birds are protected under the Migratory Bird Treaty Aetand the Bald and Golden Eagle Protection Ac�.

Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as describedbelow.

1. The Migratory Birds Treaty Act of 1918.

2. The Bald and Golden Eagle Protection Act of 1940.

Additional information can be found using the following links:
• Birds of Conservation ConcernhttP-s://www.fws.gov/J;2_Logram/migratory-birds/species • Measures for avoiding and minimizing impacts to birds httP-s://www.fws.gov/library/collections/avoiding-and-minimizing-incidenta1-takemigratory-birds • Nationwide conservation measures for birds
httP-s://www.fws.gov/sites/default/files/documents/nationwide-standard-conservationm easu res. p_g_f The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQbelow. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit theE-bird data mapJllilg tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be foundbelow.

For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be present and breeding in your project area.

NAME
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources .BRE.E_DI.NG .. SEASG_N .. (1.F.A

BREEDING SEASON IS
································---

INDICATED FOR A BIRD ON

YOUR LI ST, THE BIRD MAY
6/14
EXHIBIT 1 763
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Lawrence's Goldfinch Carduelis lawrencei
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska.
htq�s:/ / ecos. fws.gov / eci;2.Lspeci es/9464
Long-eared Owl asio otus
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska.
httQs://ecos.fws.gov/eci;2.Lspecies/3631
Nuttall's Woodpecker Picoides nuttallii
This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA httQs:/ /ecos.fws.gov/eci;2.Lspecies/941 O
Oak Titmouse Baeolophus inornatus
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska.
httQs:/ / ecos .fws.gov / eci;2.Lspeci es/9656
Olive-sided Flycatcher Contopus cooperi
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska.
httQs://ecos.fws.gov/eci;2.Lspecies/3914
Yellow-billed Magpie Pica nuttalli
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska.
httQs:/ / ecos. fws.gov / eci;2.Lspeci es/9726
Probability of Presence Summary
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources -�-�EED IN YOY._R PROJEC1: .. �-�-�-
f.\

SOMETIME WITHIN THE

TIMEFRAME SPECIFIED, WHICH

IS A VERY LIBERAL ESTIMATE OF

THE DATES INSIDE WHICH THE
....................................................................................................

BIRD BREEDS ACROSS ITS
..... .

ENTIRE RANGE. "BREEDS
ELSEWHERE" INDICATES THAT
································---··········································

THE BIRD DOES NOT LIKELY
.BREE. _DJN_ YO.U_R .. PROJECT .

AREA)
Breeds Mar 20 to Sep 20
Breeds Mar 1 to Jul 15
Breeds Apr 1 to Jul 20
Breeds Mar 15 to Jul 15
Breeds May 20 to Aug 31
Breeds Apr 1 to Jul 31
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The graphs below provide our best understanding of when birds of concern armost likely to be present in your project area. This information can be used to tailor and schedui,.our project activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ"Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this report.

Probability of Presence(■)
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4- week months.)A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish aevel of confidence in the presence score. One can have higher confidence in the presence score if thErorresponding survey effort is also high.

How is the probability of presence score calculated? The calculation is done in three steps:

1. The probability of presence for each week is calculated as the number of survey eventie the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them,the probability of presence of the Spotted Towhee in week 12 is 0.25.

2. To properly present the pattern of presence across the year, the relative probabilit¢ presence is calculated.This is the probability of presence divided by thEmaximum probability of presence across all weeksFor example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and thathe probability of presence at week 12 (0.25) is the maximum of any week of the year. The relativEprobability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2.

3. The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between O and 10, inclusive. This is the probability of presence score.

To see a bar's probability of presence score, simply hover your mouse cursor over the bar.

Breeding Season ( )
Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across its entire range.If there are no yellow bars shown for a bird, it does not breed in your project area.

Survey Effort(I)
Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed forthat species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a rangefor example, 33 to 64 surveys.

To see a bar's survey effort range, simply hover your mouse cursor over the bar.

No Data(-)
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 8/14 EXHIBIT 1 765
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A week is marked as having no data if there were no survey events for that week.

Survey Timeframe
Surveys from only the last 1 O years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of availabledata, since data in these areas is currently much more sparse.

SPECIES
Lawrence's
Goldfinch
-�_cc Range".'.':'.!.�.�
(CON) (This is a
Bird of
Conservation
Concern (BCC)
throughout _its
-��nge in th�
continental USA ..... . ........... .
and Alaska.)

JAN FEB
Long-eared Owl + + _ ++
BCC __ Rangewi_de
(CON) (This is a
Bird of
Conservation
......................................

Concern (BCC)
throughout _its
-��nge in th�
continental USA ..... . ........... .
and Alaska.)
Nuttall's
Woodpecker
BCC - BCR(This
is a Bird of
Conservation
......................................

Concern (BCC)
.........................................
only_
i
_n
particular _Bird _
Conservation
......................................

Regions_(BCRs)
in the
continental
USA)
■ probability of presence

MAR APR MAY JUN
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources breeding season I survey effort - no data

JUL AUG SEP OCT NOV DEC
+ + +
++ ++++ + + ++ -
9/14
EXHIBIT 1 766
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Oak Titmouse
BCC
..

Rangewide
(CON) (This is a
Bird of
Conservation
Concern (BCC)
.........................................
throughout
_
its
range in the
continental USA
......................
and Alaska.)
Olive-sided
Flycatcher
BCC Rangewide
(CON) (This is a
Bird of
Conservation
-····································
Concern (BCC)
throughout
_
its
range
_
in_the
continental USA
..... . ........... .
and Alaska.)
Yellow-billed
Magpie
-
�_
cc Range�!
.�.�
(CON) (This is a
Bird of
Conservation
......................................

Concern (BCC)
throughout
.
its
-
��nge in th�
continental USA ·····---·············
and Alaska.)
..... ..

IPaC: Explore Location resources
+-
+-.. I + - I I + ++ I +
+ ++ +
+ ++
Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds.

Nationwide Conservation Measuresdescribes measures that can help avoid and minimize impacts to all birds at any location year round. lmplementatiomf these measures is particularly important when birds are most likely to occur in the project area. When birds ma:J>e breeding in the area, identifying the locations of any active nests and avoiding their destruction is a ver!iielpful impact minimization measure.

To see when birds are most likely to occur and be breeding in your projeca:rea, view the Probability of Presence Summary.Additional measuresor P-ermits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site.

What does IPaC use to generate the migratory birds potentially occurring in my specified location? The Migratory Bird Resource List is comprised of USFW53irds of Conservation Concern (BCC)md other species that may warrant special attention in your project location.

The migratory bird list generated for your project is derived from data provided by th.(!vian Knowled� Network (AKN} The AKN data is basedon a growing collection ofsurvey. banding. and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 10/14 EXHIBIT 1 767
7/20/22, 10:21 AM IPaC: Explore Location resources
cell(s) which your project intersects,and that have been identified as warranting special attention because they are a BCC species in that area, aneagle �gle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development.

Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit theAKN Phenology Tool.

What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location?
The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network {AKN.)This data is derived from a growing collection oturvey, banding, and citizen science datasets.

Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probabilityof Presence Summary and then click on the "Tell me about these graphs" link.

How do I know if a bird is breeding, wintering, migrating or present year-round in my project area? To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may refer to the following resourcesThe Cornell Lab of Ornithology All About Birds Bird Guide, or (if you are unsuccessful in locating the bird of interest there), the:ornell Lab of Ornithology Neotropical Birds guide If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified.If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area.

What are the levels of concern for migratory birds?
Migratory birds delivered through IPaC fall into the following distinct categories of concern:

1. "BCC Rangewide" birds areBirds of Conservation Concern(BCC) that are of concern throughout their range anywhere within the USA(including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands);

2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and

3. "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in offshore areas from certain typesof development or activities (e.g. offshore energy development or longline fishing).

Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern.For more information on conservation measures you can implement to help avoid and minimize migratory bird impactsand requirements for eagles, please see the FAQs for these topics.

Details about birds that are potentially affected by offshore projects https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 11/14 EXHIBIT 1 768
7/20/22, 10:21 AM IPaC: Explore Location resources
For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit thl!iortheast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review.Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive M�Hm.ing of Marine Bird Distributions and Abundance on the Atlantic Outer Continental She�roject webpage.

Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration.Models relying on survey data may not include this informatiorfor additional information on marine bird tracking data, see tha>iving Bird Study and the nanotag studiesor contact Caleb S�gg_l orPam Loring.

What if I have eagles on my list?
If your project has the potential to disturb or kill eagles, you may need tobtain a permitto avoid violating the Eagle Act should such impacts occur.

Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring in my specified location". Please be aware this report provides the "probability of presence" of birdswithin the 1 O km grid cell(s) that overlap your project; not your exact project footprint.

On the graphs provided,please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the"no data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high,then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or nCI!ata bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is noperfect; it is simply a starting point for identifying what birds of concern have the potential to be in you project area, when they might be there, and if they might be breeding (which means nests might be present). The lisbelps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservatiomeasures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To leamrnore about conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your migratory bird trust resources page.

Coastal Barrier Resources System
Projects within theJohn H. Chafee Coastal Barrier Resources System (CBRS) may be subject to the restrictions on federal expenditures and financial assistance and the consultation requirements of the Coastal Barrier Resources Act (CBRA) (16 U.S.C. 3501 et seq.). For more information, please contact the localEcological Services Field Officeor visit the CBRA Consultations website The CBRA website provides tools such as a flow chart to help determine whether consultation is required and a template to facilitate the consultation process.
https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 12/14 EXHIBIT 1 769
7/20/22, 10:21 AM IPaC: Explore Location resources
THERE ARE NO KNOWN COASTAL BARRIERS AT THIS LOCATION.

Data limitations
The CBRS boundaries used in IPaC are representations of the controlling boundaries, which are depicted on the official CBRS ma� The boundaries depicted in this layer are not to be considered authoritative for in/out determinations close to a CBRS boundary (i.e., within the "CBRS Buffer Zone" that appears as a hatched area on either side of the boundary). For projects that are very close to a CBRS boundary but do not clearly intersect a unit, you may contact the Service for an official determination by following the instructions here:htq�s://www.fws.gov/service/coastal-barrier-resources-system..:!2[QJ2_g.rty-documentation Data exclusions
CBRS units extend seaward out to either the 20- or 30-foot bathymetric contour (depending on the location of the unit). The true seaward extent of the units is not shown in the CBRS data, therefore projects in the offshore areas of units (e.g., dredging, breakwaters, offshore wind energy or oil and gas projects) may be subject to CBRA even if they do not intersect the CBRS data. For additional information, please contact [email protected]Facilities
National Wildlife Refuge lands
Any activity proposed on lands managed by thENational Wildlife Refu� system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns.

THERE ARE NO REFUGE LANDS AT THIS LOCATION.

Fish hatcheries
THERE ARE NO FISH HATCHERIES AT THIS LOCATION.

Wetlands in the National Wetlands Inventory
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 13/14 EXHIBIT 1 770
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For more information please contact the Regulatory Program of the loca.JI.S. Army Corps of Engineers District.

WETLAND INFORMATION IS NOT AVAILABLE AT THIS TIME
This can happen when the National Wetlands Inventory (NWI) map service is unavailable, or for very large projectsthat intersect many wetland areas. Try again, or visit thENWI ma12 to view wetlands at this location.

Data limitations
The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error is inherent in the use of imagery; thus, detailed on-the-ground inspection of any particular site may result in revision of the wetland boundaries or classification established through image analysis.

The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts, the amount and quality of the collateral data and the amount of ground truth verification work conducted. Meta data should be consulted to determine the date of the source imagery used and any mapping problems.

Wetlands or other mapped features may have changed since the date of the imagery or field work. There may be occasional differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site.

Data exclusions
Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery.

Data precautions
Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies.

Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. https://ipac.ecosphereiws.gov/location/IADHQHGWDSDYNAYCOXBHIGTOXY/resources 14/14 EXHIBIT 1 771
Attachment C
Photographs
EXHIBIT 1 772
Mormon Slough in the east part of the site, looking northwest; 04/09/21.

Upland area adjacent to Mormon Slough in the east part of the site, looking northwest; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 773
Man hole cover within Mormon Slough in the east part of the site, looking west; 04/09/21.

Upland area just south of Mormon Slough, looking west from the east part of the site; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 774
Recently wetted portion of Mormon Slough, looking west from the approximate central part of the site; 04/09/21.

Wetted portion of Mormon Slough, looking west from the approximate central part of the site; 04/09/21. This photo was taken approximately 100 feet further downstream from the photo above.

MOORE BIOLOGICAL
EXHIBIT 1 775
Patch of dense tules at the upstream end of a large box culvert within Mormon Slough; 04/09/21. This is the inlet to a long underground culvert system that conveys flows to the west.

Top of the underground culvert system shown in the photo above, looking west from just downstream of the culvert inlet; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 776
Trash and a patch of tules just downstream of the box culvert inlet area, looking northwest; 04/09/21. Water seeps around the north edge of the culvert inlet and ponds water in a low area upstream of the bridge.

Tule patch downstream of the box culvert inlet, looking west; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 777
Wilson Way bridge, looking northwest from the east side of the bridge; 04/09/21. There was no evidence of nesting swallows under the bridge.

Mormon Slough just upstream of the Wilson Way bridge, looking east; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 778
Mormon Slough channel just downstream of the Wilson Way bridge, looking west; 04/09/21.

Ruderal grassland just downstream of the Wilson Way bridge, looking west; 04/09/21.

This historical portion of the slough has been rerouted through an underground box culvert and this area no longer shows signs of an active channel.

MOORE BIOLOGICAL
EXHIBIT 1 779
Fenced off automobile facility at the west end of the site, looking north from where the alignment bends to the north; 04/09/21.

Automobile facility at the west end of the site, looking south from Anderson Street; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 780
Man hole within Anderson Street, looking south; 04/09/21.

Approximate location of the potential maintenance hole site east of the main work area, looking northwest; 04/09/21.

MOORE BIOLOGICAL
EXHIBIT 1 781
Attachment D
Aquatic Resources Delineation Map
EXHIBIT 1 782
Prepared For:
t
iaS
f!
1 !�
Diane Moore
+ Alignment Markers Moore Biological Consulting
10330 Twin Oties Road, Suite 30 () Wetland Data Point
Galt, CA 95632-9043
Upland Data Point
DELINEATED BY: J. Glazner I D Intermittent Stream
DRAWN BY: H. Gallant 0 75 150 • Seasonal Marsh COORDINATE SYSTEM: NAD83 CA State Plane III USFT Feel IMAGERY: Google Earth 09/2020
Intermittent Stream
IS-1
Subtotal
Aquatic Resources
Acrea_g_e Seasonal Marsh

0.280

0.280
SM-1
Total: 0.445 Acre
Subtotal
Acrea_g_e

0.165

0.165
Figures

AQUATIC RESOURCES

DELINEATION MAP
Mannon Slou
gh
City of Stockton, CA
July 14, 2022
EXHIBIT 1 783
Attachment E
San Joaquin County Multi-Species Habitat
Conservation and Open Space Plan:

Stockton Area Compensation Map
& 2022 Fee Schedule
EXHIBIT 1 784
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   
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   

    
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   
 
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 
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
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
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
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

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
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 
 
EXHIBIT 1 785
SJCOG, Inc.
555 East Weber Avenue tockton, CA 95202 (209) 235- -0438 San Joaquin County Multi-Species Habitat Conservation & Open Space Plan (SJMSCP) Leo Zuber CHAIR Robert Rickman VICE CHAIR Diane Nguyen PRESIDENT Member Agencies CITIES OF ESCALON, LATHROP, LODI, MANTECA, RIPON, STOCKTON, TRACY, AND THE COUNTY OF SAN JOAQUIN EXHIBIT 1 786
Attachment F
Designated Critical Habitat
EXHIBIT 1 787
Mormon Slough Sanitary Sewer Rehabilitation Project
City of Stockton, San Joaquin County, CA
Map Date: 07/21/2022; Source: USFWS; NOAA
N A
"-' Gren Stur eon
µ
0 0.75 1
.
5 iles
EXHIBIT 1 788

APPENDIX C

CULTURAL RESOURCE REPORT
EXHIBIT 1 789

CULTURAL RESOURCES INVENTORY AND EVALUATION REPORT

MORMON SLOUGH SANITARY SEWER REHABILITATION PROJECT

CITY OF STOCKTON, SAN JOAQUIN COUNTY, CALIFORNIA
-♦♦♦-
Prepared for:

Basecamp Environmental, Inc.
115 South School St.

Suite 14
Lodi, CA 95240
Submitted by:

Brian Ludwig, Ph.D., RP.A.

Jason A. Coleman, M.A., RP.A.

Solano Archaeological Services
131 Sunset Avenue, Suite E # 120
Suisun City, CA 94585
707-718-1416
August 2022
Stockton West, California USGS 7. 5' Quadrangle
Township 1 North, Range 6 East
EXHIBIT 1 790

MANAGEMENT SUMMARY
EXHIBIT 1 791

TABLE OF CONTENTS
MANAGEMENT SUMMARY .................................................................................. I

1.0 INTRODUCTION .................................................................................... 1

1.1 Project Description ........................................................................................... 1

1.2 Project Location and Area of Potential Effects........................................................... 1

1.3 Regulatory Context ........................................................................................... 1

2.0 NATURAL AND CULTURAL SETTING............................................................ 7

2.1 Natural Environment ......................................................................................... 7

2.2 Prehistoric Context ........................................................................................... 7

2.3 Ethnographic Context ........................................................................................ 9

2.4 Historic Context..............................................................................................10

3.0 NATIVE AMERICAN CONSULTATION ...........................................................11

4.0 RECORD SEARCH AND LITERATURE REVIEW RESULTS .....................................12

4.1 Information Center Record Search Results ...............................................................12

4.2 Additional Archival Research...............................................................................14

5.0 FIELD METHODS AND SURVEY FINDINGS .....................................................14

7.0 RECOMMENDATIONS .............................................................................15

8.0 REFERENCES ......................................................................................16

FIGURES
Figure 1. Project Vicinity Map............................................................................ 4 Figure 2. Project Location Map........................................................................... 5 Figure 3. Project APE Map ................................................................................ 6 TABLES
Table 1. Previously Documented Cultural Resources Within ½-Mile of the APE................. 13 Table 2. Previously Conducted Cultural Resources Studies in the APE ........................... 13

APPENDICES
Appendix A: Key Personnel Resumes
Appendix B: Project Alignments Map
Appendix C: Native American Community Consultation - Correspondence Appendix D: Central California Information Center Record Search Results EXHIBIT 1 792

1.0 Introduction

1.1 Project Description

1.2 Project Location and Area of Potential Effects

1.3 Regulatory Context

1.3.1 Section 106 of the National Historic Preservation Act EXHIBIT 1 793

1.3.2 National Register of Historic Places

1.3.3 California Environmental Quality Act
EXHIBIT 1 794
Solano Archaeological Services
Au st2022
Mormon Slough Sewer Rehabilitation Project
lead agency as supported by substantial evidence in the record. Generally, a cultural resource shall be considered by the lead agency to be "historically significant" if it meets any of the following criteria for listing on the CRHR:

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

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

3. embodies the distinctive characteristics of a type, period, region, or method of construction, or represents the work of an important creative individual, or

4. possesses high artistic values; has yielded, or may be likely to yield, information important in prehistory or history.

CEQA guidelines also require consideration of unique archaeological resources (Section 15064.5). As used in Public Resource Code (Section 21083.2), a unique archaeological resource means an archaeological artifact, object, or site about which it can be clearly demonstrated that, without merely adding to the current body of knowledge, there is a high probability that it meets any of the following criteria:
• Contains information needed to answer important scientific research questions and that there is a demonstrable public interest in that information.
• Has a special and particular quality such as being the oldest of its type or the best available example of its type.
• Is directly associated with a scientifically recognized important prehistoric or historic event or person.

In addition to meeting one or more of the above criteria, historical resources eligible for listing in the CRHR must retain enough of their historic character or appearance to be recognizable as historical resources and to convey the reasons for their significance. Integrity is evaluated with regard to the retention of location, design, setting, materials, workmanship, feeling and association. 31Page
EXHIBIT 1 795
)
p I r-1
Figure 1. Project Vicinity Map.
-Mormon Slough Sewer Rehab Project APE
Sources: USA Base Map [layer],Data and Maps [CD]. ESRI, 2006. \ --.-�...J_
· _-......c_,· :�:,,k--_.,,,....-�-/_-..,..
�--1------,,,:
� �
0 I
-�
,...,,..,---
--
1:250,000
0 3 Miles
I I
6 Kilometers
EXHIBIT 1 796
Figure 2. Project Location Map.

Mormon Slough Sewer Rehab Project APE
Campos De Los Franceses Land Grant (Presumed TOlN, R06E, Section 12).

Stockton West 7.5' Series Quadrangle, USGS, 1978.
1:24,000

0.5 �--------�Miles
�-----------�Kilometers
EXHIBIT 1 797
Figure 3. Project APE Map.
-Mormon Slough Sewer Rehab Project APE
Total Acres: 2.74
0 I
0 I
1:4,000
200 Feet
I
100 Meters
I
EXHIBIT 1 798

2.0 NATURAL AND CULTURAL SETTING

2.1 Natural Environment

2.2 Prehistoric Context
EXHIBIT 1 799
Windmiller Pattern (4,500 2,500 BP)
Berkeley Pattern (2,500 BP 1,500 BP)
EXHIBIT 1 800
Augustine Pattern (1,500 BP historic contact)

2.3 Ethnographic Context
EXHIBIT 1 801

2.4 Historic Context
EXHIBIT 1 802

3.0 Native American Consultation
EXHIBIT 1 803

4.0 RECORD SEARCH AND LITERATURE REVIEW RESULTS

4.1 Information Center Record Search Results
EXHIBIT 1 804
Table 1. Previously Documented Cultural Resources Within ½-Mile of the APE Resource No.
(P-39-)
Association Type Last Documented
000002 Historic era Southern Pacific Railroad line Wisely - FWARG 2018 000112 Historic era Burlington Northern Santa Fe rail line Stapleton - Parus Consulting 2013 000393 Historic era U.S. Forest Service Stockton Supply Depot Supernowicz - USFS 1982 000469 Historic era WWII internment camp Okamura - Ethnic Minority Cultural Resources 1980
002388 Historic era Burbank School San Joaquin Cty. Superintendent of Public Schools 1991
004266 Historic era Unidentified building Walker & Weitze 1979 004267 Historic era 815 S. Airport Way - building Walker & Weitze 1979 004302 Historic era 947 S. Aurora St. - building Derivi et al. 1979 004349 Historic era 2000/2024 E. Charter Way - building` Marvin & Brejla - LSA Assoc. 2002 004350 Historic era Caltrans D. 10 Maintenance Yard Kuzak - Caltrans D. 10 2009 004351 Historic era Caltrans D. 10 Headquarters Marvin & Brejla - LSA Assoc. 2002 004457 Historic era Central Cal. Traction Railroad Pappas & Westwood -ECORP 2011 005142 Historic era Geiger Manufacturing Inc. Jacquemain - CRM Tech 2012 005377 Historic era Station 19 Pump House Nayyar & Wendt - Michael Brandman Assoc. 2020
Table 2. Previously Conducted Cultural Resources Studies in the APE Study No.
(SJ-)
Author Title
02219 City of Stockton Historic Survey Project Agreement, Final Report; Project Period June 1, 1978, to March 31, 1979.
02246 Hemmenau, H - City of Stockton Completion Report, Historic Survey Project Agreement No. 36-09-006, Stockton, California; Project Period April 1, 1979, to March 31, 1980.
02247 Rapp, L. - City of Stockton Stockton Historic Resource Inventory II: Analysis Report, June 1980.

EXHIBIT 1 805

4.2 Additional Archival Research

5.0 FIELD METHODS and SURVEY FINDINGS

6.0 ARCHAEOLOGICAL SENSITIVITY ASSESSMENT
EXHIBIT 1 806

7.0 RECOMMENDATIONS
EXHIBIT 1 807

8.0 REFERENCES
EXHIBIT 1 808
Solano Archaeological Services
Au st2022
Mormon Slough Sewer Rehabilitation Project
Meyer, J. and Jeffery S. Rosenthal
1998 An Archaeological Investigation of Artifacts and Human Remains from CA-CC0-637, Los Vaqueros Project Area, Contra Costa County, California. Published by the Anthropological Studies Center, Sonoma State University Academic Foundation, Inc., Rohnert Park, CA Milliken, Randall
1997 Contact Period Ethnography of the Calaveras River Region. In: The Taylor's Bar Site (CA-CAL1180/H): Archaeological and Ethnohistorical Investigations in Calaveras County, California, by Randall Milliken et al. Submitted to Calaveras County Water District, San Andreas, CA Moratto, Michael J.
1984 California Archaeology. Academic Press, Orlando, FL.

Nationwide Environmental Title Research
2020 https://www.historicaerials.com/viewer. Site accessed April 26, 2021.

Ornduff, Robert
1974 Introduction to California Plant Life. University of California Press, Berkeley, CA Ragir, S.
1972 The Early Horizon in Central California Prehistory. Contributions of the University of California Archaeological Research Facility 15, Berkeley.

Sanborn Perris Map Company
1895 https://www.loc.gov/resource/g4364sm.g4364sm_g008681895/?sp=2&r=0.217,0.492,0.757,0.365.

Site accessed April 29, 2021.

Storer, T.I., and R. Usinger
1970 Sierra Nevada Natural History. Berkeley: University of California Press.

Thompson & West
1879 History of San Joaquin County. F.T. Gilbert, Oakland, CA Tinkham, George H.
1923 History of San Joaquin County, California: With Biographical Sketches ofleading Men and Women of the County who have been identified with its growth and development from the early days to the present. Historic Record Company, Los Angeles, CA.

Wallace, William J.
1978 Northern Valley Yokuts. In Handbook of North American Indians, Vol. 8. Smithsonian Institution, Washington, D.C.

Western Regional Climate Center
2016 Stockton. Available online at: https://wrcc.dri.edu/. Accessed April 22, 2021. 171Page
EXHIBIT 1 809
EXHIBIT 1 810
Jason A. Coleman, M.A., R.P.A.
j
Highlights:

Education:

Certifications:

Professional Affiliation:

Professional Archaeological Experience:

Projects conducted as SAS Owner:

EXHIBIT 1 811
during the current drought. These water development projects involve a small-scale footprint (typically from three to six well sites on 1-5 acres) located on private grazing lands. Twenty-four cultural resources inventories have already been completed in Plumas, Sierra, Yuba, Yolo, San Benito, Kem, and Siskiyou Counties as part of the ECP in 2015.

Position: Principal Investigator and Field Director
Client: GrassRoots Environmental prime contract holder
Lower Putah Creek Restoration Project Cultural Resources Inventory and Evaluation Report, Yolo County, California (2015). Located within the Yolo Bypass Wildlife Area (YBWA), a 16,800-acre wildlife preserve managed by California Department of Fish and Wildlife (CDFW), the project proposed to restore ecological functions and enhance fish passage in Lower Putah Creek, from the Putah Diversion Dam through the YBW A.

Directed by the Yolo Basin Foundation (YBF) and CDFW, the proposed project would create a new 5.6-mile long Lower Putah Creek channel through the YBW A that would connect through and enhance an existing restored tidal channel on the YBWA, and provide a new connection with the Toe Drain, downstream of the Lisbon Weir. Due to Section 404 permitting with the USA CE, the project involved CEQA and Section I 06 regulatory settings. SAS conducted a records search at the Northwest Information Center, and extensive research of the project area.

Consultation with the Native American community also took place. During survey two historic-era resources were identified, including the grade of the Sacramento Norther Railway and a 220 kilovolt (kv) electrical transmission line.

Both resources were fully recorded, researched, and ultimately recommended ineligible for NRHP listing. SAS also prepared an EIR section for the client.

Position: Principal Investigator, Field Director
Client: Richard Grassetti Consulting
Cameron Hills Project, El Dorado County, California (2015). On behalf of Sycamore Environmental, a NEPAlevel cultural resources study of a 20-acre parcel was conducted near the town of Shingle Springs. MCP Properties, LLC was proposing to construct a 41-unit residential subdivision of single-family homes at this location. The construction was to include the installation of utilities, a storm water detention basin, and a road network. As the project qualified under the USACE as a Nationwide 14 Linear Transportation Project, the project required the submission of a Section 404 permit to the USA CE and compliance with Section 106 of the NHP A. Extensive Native American consultation was conducted, and a reconnaissance survey yielded no cultural resources on the parcel. The report was reviewed and accepted by the USACE and the project was completed successfully on time.

Position: Principal Investigator, Field Director
Client: Sycamore Environmental
Hope Valley Meadow Restoration Project, Alpine County, California (2015). Conducted a NEPA-level cultural study of a 7-acre parcel in Alpine County as part of a wetland restoration effort. American Rivers, a national nonprofit conservation organization dedicated to protecting and restoring the rivers of the U.S., proposed to restore meadowlands along the West Fork of the Carson River in Hope Valley south of South Lake Tahoe. The purpose of the Project was to stabilize 130 feet of high, eroding bank along the stream channel on California Department of Fish and Wildlife land. The project was completed on time with no cultural resources discovered, and the report was successfully reviewed and accepted by the U.S. Army Corps of Engineers (USACE).

Position: Principal Investigator, Field Director
Client: American Rivers
Superior Self Storage Project, City of Vacaville, Solano County, California (2015). Conducted a CEQA-level cultural resources inventory on a 2.5-acre lot for the proposed construction of a 45,701 square foot single-story indoor public storage facility located at the southwest intersection of Piper Drive and E. Monte Vista Avenue. The Native American Heritage Commission Sacred Land review, Northwest Information Center records search, and reconnaissance survey were all negative for cultural resources. At the request of the client, the project was successfully expedited within three weeks to ensure deadlines were met with Solano County and the City of Vacaville planning departments.

Position: Principal Investigator, Field Director
Client: Sycamore Environmental
EXHIBIT 1 812
Brian Ludwig, Ph.D, R.P.A.

EXHIBIT 1 813
of seepage, and erosion remediation on Sacramento River, American River, and Natomas Cross Canal levees.

Pacheco State Park General Plan and EIR - Merced and Santa Clara Counties, California Dr. Ludwig conducted and managed all aspects of the cultural resources investigation for this EIR.

Pacheco State Park is a recent addition to the State Park system, opened to the public in 1997. The Park is characterized by old ranch roads through plant communities of Oak and Blue Oak Woodland, Grassland Chaparral and wetlands. The General Plan was the first comprehensive inventory and analysis of natural, cultural, recreational and operational resources with the goal of setting a vision for future planning and management. It serves as the primary management document for a State Park unit, defining broad use classifications, visitor use opportunities, natural resources management and restoration policies, cultural resources management programs, interpretation themes, and operations and maintenance policies.

Dos Pueblos Ranch CRHR Evaluation Project - Santa Barbara, California Dr. Ludwig completed a historic landscape inventory and California Register of Historical Resources (CRHR) evaluation of the historically diverse Dos Pueblos Ranch property located in Goleta, Santa Barbara County. Numerous sites, features, buildings, and artifacts remain as visible reminders to various occupation periods and historical events that have taken place on the Dos Pueblos Ranch property for more than 200 years. The results of the cultural landscape study showed that the Dos Pueblos Ranch property is a good surviving example of a rural historic landscape that reflects the day-to-day occupational activities of a theme important to the economic development of southern California.

Feather and Bear Rivers Levee Setback Project - Yuba County, California Dr. Ludwig led the cultural resources team in preparing a Land Acquisition and Management Plan (LAMP) addressing options for the treatment of lands within a levee setback area on the Bear River at the confluence with the Feather River and prepared an environmental impact report (EIR) on the levee setback, a key element of the Yuba-Feather Supplemental Flood Control Project. In response to the discovery of prehistoric archaeological remains and artifacts at two sites in the construction footprint, Dr.

Ludwig directed archaeological site testing and reporting, including recovery and preservation of burials; coordinated with the pertinent Native American representatives, local authorities, and USACE archaeologists; used a geomorphic model as a predictor of where there is potential for the presence of subsurface archaeological deposits within the footprint of the setback levee; and facilitated discussions of treatment of the discovery sites.

Feather River Levee Repair Project EIR and EIS - Yuba County, California Dr. Ludwig managed the cultural resources component of this project for a separate EIR and EIS on the Feather River Levee Repair Project, an element of the Yuba-Feather Supplemental Flood Control Project.

The project increased flood protection in the Reclamation District (RD) 784 area of Yuba County. The project also addressed identified deficiencies in the Feather River levee and made related improvements to the Yuba River levee near its confluence with the Feather River. Key issues addressed in the EIR included flood control, impacts to upstream and downstream flood stage elevations, endangered species ( e.g., giant garter snake and valley elderberry longhorn beetle), and potential impacts to known cultural resources sites. Permitting for the project included assisting TRLIA in preparing documentation required for USACE permission for alteration of the federal levee system under Sec. 408 of the Rivers and Harbors Act and preparation of NEPA documentation to support Corps project approvals.

EXHIBIT 1 814

APPENDIXB
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PROJECT ALIGNMENTS MAP
EXHIBIT 1 815
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PAGE NO
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EXHIBIT 1 816

APPENDIXC
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NATIVE AMERICAN COMMUNITY

OUTREACH CORRESPONDENCE
EXHIBIT 1 817
131 Sunset Avenue, Suite E # 120
Suisun, CA 94585-2064
April 16, 2021
Native American Heritage Commission
1550 Harbor Blvd, Suite 100
West Sacramento, CA 95691
707-718-1416. Fax 707-451-4775
www.solanoarchaeology.com
Re: Mormon Slough Sewer Rehabilitation Project - City of Stockton, San Joaquin County, California To Whom It May Concern:

Basecamp Environmental has retained Solano Archaeological Services (SAS) to conduct a cultural resources inventory of an approximately 1.21-acre (0.5-mile corridor) Area of Potential Effect (APE) located in the City of Stockton, San Joaquin County, for the proposed Mormon Slough Sewer Rehabilitation Project (the Project). The Project is subject to the provisions of the California Environmental Quality Act (CEQA), and due to U.S. Army Corps of Engineers permitting requirements, Section 106 of the National Historic Preservation Act (Section 106) is also applicable. The APE is located in Miner Slough at Wilson Way, and Jefferson Street and is situated in the Campos De Los Franceses land grant in projected Township 1 North, Range 6 East, Section 12 as depicted on the attached Stockton West, California USGS 7.5' topographic quadrangle map.

The cultural investigation will include an intensive survey and we would like to request a Sacred Lands File (SLF) review for any known but unrecorded cultural resources or sensitive properties within or near the APE. If you could also please provide a list of appropriate Native American individuals/organizations that may have knowledge of cultural resources in the vicinity, we would greatly appreciate it. Please be aware that this SLF review request and Section 106/CEQA outreach effort to local tribal representatives is for planning purposes only, and is not part of any SB 18 or AB 52 consultation effort.

Please email results back to [email protected].

If you have any questions, feel free to contact me by email or via phone at 530-417-7007.

Regards,
�,
Brian Ludwig,Ph.D. �
Principal Investigator
Enc. USGS topographic map
EXHIBIT 1 818
Project Location Map.

Mormon Slough Sewer Rehab Project APE
Campos De Los Franceses Land Grant (Presumed TOlN, R06E, Section 12).

Stockton West 7.5' Series Quadrangle, USGS, 1978.
1:24,000

0.5 �--------�Miles
�-----------�Kilometers
EXHIBIT 1 819
STATE OF CALIFORNIA Gavin Newsom, Governor

NATIVE AMERICAN HERITAGE COMMISSION

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City Council and Concurrent AuthoritiesOctober 17, 2023

City Council and Concurrent Authorities
October 17, 2023