2025-01260 Initial StudyMitigated Negative Declaration and 90% Design Approval for the 24th Street Wet Weather Improvements Project

City of Sacramento
City Council - 2PM Report
915 I Street Sacramento, CA 95814
www.cityofsacramento.org
File ID: 2025-01260 7/1/2025
Initial Study/Mitigated Negative Declaration and 90% Design Approval for the 24th Street Wet Weather Improvements Project
File ID: 2025-01260
Location: District 4
Recommendation: Adopt a Resolution approving the Initial Study/Mitigated Negative Declaration (IS/MND) and adopting the Mitigation Monitoring and Reporting Program (MMRP); and pass a Motion approving the 90% design plans for the 24th Street Wet Weather Storage Improvements Project (X14170100).

Contact: Tim Moresco, Project Manager, (916) 808-1432, [email protected]; Roxanne Dilley, Supervising Engineer, (916) 808-1458, [email protected]; Sherill Huun, Interim Director, (916) 808-1455, [email protected]; Department of Utilities Presenter: None
Attachments:
1-Description/Analysis
2-Resolution
3-Exhibit A - Mitigation Monitoring and Reporting Program (MMRP) for the 24 th Street Wet Weather
Storage Improvements Project
4-Exhibit B - Responses to Comments Received on the Initial Study/Mitigated Negative Declaration 5-Exhibit C - 90% Design Plans
Description/Analysis
Issue Detail: Staff recommends Council adopt the Initial Study/Mitigated Negative Declaration (IS/MND), adopt the Mitigation Monitoring and Reporting Program (MMRP), and approve the preliminary design plans for the 24
th Street Wet Weather Storage Improvements Project.

Policy Considerations: The California Environmental Quality Act (CEQA) Guidelines are administrative regulations governing implementation of the CEQA (Public Resources Code section 21000 and following). The CEQA Guidelines apply to public agencies throughout the state, including local governments, special districts, and state agencies and require that certain CEQA compliance documents be adopted by the City’s elected decision-making body.

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File ID: 2025-01260 7/1/2025
Economic Impacts: None.

Environmental Considerations: The City prepared a draft Mitigated Negative Declaration (MND) for the 24th Street Storage Pipe Project in accordance with the requirements of CEQA. The IS/MND evaluates potential environmental effects resulting from the proposed project, which involves the construction and operation of a replacement sanitary sewer pump station, and other necessary facilities. The draft IS/MND was circulated for a 30-day public review period from March 24, 2025, to April 24, 2025. The comment period was also advertised in a newspaper of general circulation. A notice of availability / notice of intent to adopt an MND was posted in the County Clerk’s Office and was sent to applicable regulatory agencies, neighborhood associations, and stakeholders in the project area. The draft IS/MND was also circulated through the CA Governor’s Office of Land Use and Climate Innovation’s State Clearinghouse (SCH#: 2025031000).

The City received five (5) comment letters on the draft IS/MND. A memo containing responses to the comment letter is included as Exhibit B. None of the comments received identified new significant effects, an increase in severity of an impact described, or significant new information, and therefore, no changes have been made to the IS/MND. The comments and responses do not create any circumstances identified in CEQA Guidelines Section 15073.5 that would require recirculation.

Adoption of the IS/MND and MMRP by the City Council are appropriate actions for compliance with CEQA. The IS/MND for the project along with the MMRP and the Response to Comments memo are available at the Community Development Department’s EIR webpage located at the following:
https://www.cityofsacramento.gov/community-development/planning/environmental/impact-reports Sustainability: The proposed project is consistent with the 2040 General Plan under policy PFS-3.6 as it is keeping with the Combined Sewer System (CSS) Long Term Control Plan (LTCP) by improving the CSS to decrease flooding, CSS outflows, and combined system overflows.

Commission/Committee Action: Not applicable.

Rationale for Recommendation: CEQA guidelines state that the certification of the IS/MND is required to file the Notice of Determination (NOD) with the County of Sacramento. The NOD is a brief notice that is filed stating that the project is subject to the requirements of CEQA. The City will benefit from the improvements identified in the 90% design plans, which include 1.7 million gallons of additional underground storage for the combined sewer system that will decrease localized flooding and outflows in the combined sewer system in the Midtown area during large storm events.

Financial Considerations: The recommendations in this report do not result in any financial impact to the City.

Local Business Enterprise (LBE): The City’s LBE participation requirements will apply to the construction contract.

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File ID: 2025-01260 7/1/2025
Background: On March 9, 2021, City Council passed a motion to authorize the City Manager or City Manager’s designee to execute a Professional Services Agreement with West Yost & Associates to provide engineering services for the project previously known as the 24th Street In-Line CSS Storage Pipe project.

As part of the National Pollution Discharge Elimination System (NPDES) Permit, the City is required to implement and maintain a CSS Long-Term Control Plan (LTCP) which identifies priority projects that would provide the most benefit in reaching the ultimate goals of reducing outflows and flooding in the CSS area during a 10- year storm and prevent structure flooding during a 100-year storm event.

This project was ranked within the top 20 percent of all priority projects included in the LTCP.

On March 15, 2022, President Biden signed into law the FY 2022 Consolidated Appropriations Act (P.L. 117-103). In this law, Congress renewed the practice of funding specifically named community infrastructure projects, referred to the Senate as Congressionally Directed Spending (CDS) and in the House of Representatives as Community Project Funding (CPF). Identified were 483 projects, these projects are collectively funded at a level of $443,639,051 from the Clean Water State Revolving Fund (CWSRF) and $397,766,044 from the Drinking Water State Revolving Fund (DWSRF). The Environmental Protection Agency (EPA) was identified as the section of the Consolidated Appropriations Act 2022 to award and administer the CPF Grants. Out of the 483 Congress identified projects, three were City named projects, the 24th Street Combined Sewer System Storage Pipe Project for $1.5 million, Combined Sewer System Improvement Project $2 million, and the Fairbairn Groundwater Well Project $1.7 million.

Since then, the City has requested that the $2 million for the Combined Sewer System Improvement Project be allocated to the 24
th Street Combined Sewer System Storage Pipe Project, now known as the 24th Street Wet Weather Storage Improvements Project, bringing the total federal funding associated with this project to $3.5 million.

To receive this federal funding, the environmental impact review and analysis must be completed in accordance with the National Environmental Policy Act (NEPA). A key step in this process is obtaining Council approval of the ISMND and adopting the MMRP. The City will continue working with the necessary consultants to complete the NEPA requirements by Fall 2025.

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DRAFT
RESOLUTION NO. 2025-
Adopted by the Sacramento City Council
July 1, 2025

ADOPTING THE MITIGATED NEGATIVE DECLARATION AND MITIGATION MONITORING PLAN FOR THE 24th STREET WET WEATHER STORAGE IMPROVEMENTS PROJECT (X14170100)

BACKGROUND
On July 1, 2025, the City Council conducted a public hearing, for which notice was given pursuant Sacramento City Code, and received and considered evidence concerning the 24th Street Wet Weather Storage Improvements Project (X14170106) (Project).

BASED ON THE FACTS SET FORTH IN THE BACKGROUND, THE CITY COUNCIL RESOLVES AS FOLLOWS:

Section 1. The City Council finds the following:

A. The City’s Environmental Planning Services Division has prepared an Initial Study to determine if the Project may have a significant effect on the environment.

B. An initial study identified potentially significant effects of the Project.

Revisions to the P roject made by or agreed to by the Project applicant before the proposed mitigated negative declaration and initial study were released for public review were determined by City’s Environmental Planning Services to avoid or reduce the potentially significa nt effects to a less than significant level, and, therefore, there was no substantial evidence that the Project as revised and conditioned may have a significant effect on the environment.

C. Mitigated Negative Declaration (MND) for the Project was then completed, noticed and circulated in accordance with the requirements of the California Environmental Quality Act (CEQA), the State CEQA Guidelines and the Sacramento Local Environmental Procedures as follows:
i. On March 24, 2025, a Notice of Intent (NOI) to Adopt the MND dated April 24, 2025, was circulated for public comments for 30 days. The NOI was sent to those public agencies that have jurisdiction by law with respect to the proposed Project and to other interested parties and agencies, including property owners within 500 feet of the boundaries of the proposed Project and occupants within and adjacent to the project site. The comments of such persons and agencies were sought.

ii. On March 24, 2025, the NOI was published in the Sacramento Bulletin, a newspaper of general circulation, and was posted in the office of the Sacramento County Clerk.

iii. Based upon the comments received there are no significant modifications required to the MND and. and do es not require recirculation, pursuant to CEQA Guidelines Section 15073.5.

SECTION 2.

The City Council has reviewed and considered the information contained in the MND, including the initial study, revisions, and conditions incorporated into the Project, the comments received during the public review process and the hearing on the Project, and all oral and documentary evidence received during the hearing on the Current Project.

The City Council has determined that the MND constitute s an adequate, accurate, objective, and complete review of the proposed project.

SECTION 3.

Pursuant to CEQA section 21081.6 and CEQA Guidelines section 15074, and in support of its approval of the Project, the City Council adopts the Mitigation Monitoring and Reporting Plan (MMRP) to require all reasonably feasible mitigation measures, including mitigation measures from the Master Environmental Impact Report (EIR) as appropriate, be implemented by means of Project conditions, agreements, or other measures, as set forth in the MMRP.

SECTION 4.

Upon approval of the Project, the City Manager shall file or cause to be filed a Notice of Determination with the Sacramento County Clerk and with the State Office of Planning and Research, pursuant to section 21152(a) of the Public Resources Code and the State EIR Guidelines adopted pursuant thereto.

SECTION 5.

Pursuant to Guidelines section 15091(e), the documents and other materials that constitute the record of proceedings upon which the City Council has based its decision are located in and may be obtained from, the Office of the City Clerk at 915 I Street, Sacramento, California. The City Clerk is the custodian of records for all matters before the City Council.

(May we please have the Exhibits listed here with a “Table of Contents” header?

1-Exhibit A – Mitigation Monitoring and Reporting Program (MMRP) for the 24th Street Wet Weather Storage Improvements Project
2-Exhibit B – Responses to Comments Received on the Initial Study/Mitigated Negative Declaration

Adopted by the City of Sacramento City Council on July 1, 2025 by the following vote:

Ayes:

Noes:

Abstain:

Absent:

Attest:

City of Sacramento 1
24th Street CSS In-Line Storage Pipe Project

MITIGATION MONITORING AND REPORTING PROGRAM
for the 24th Street Combined Sewer System In-Line Storage Pipe Project

INTRODUCTION
The California Environmental Quality Act (CEQA) and the State CEQA Guidelines (PRC Section 21081.6 and State CEQA Guidelines Sections 15091[d] and 15097) require public agencies "to adopt a reporting and monitoring program for changes to the project which it has adopted or made a condition of project approval to mitigate or avoid significant effects on the environment." A Mitigation Monitoring and Reporting Program (MMRP) is required for the proposed project because the Initial Study (IS) identifies potential significant adverse impacts related to project implementation, and mitigation measure have been identified to reduce those impacts. Adoption of the MMRP would occur along with approval of the proposed project.

PURPOSE OF MITIGATION MONITORING AND REPORTING PROGRAM
This MMRP has been prepared to ensure that all required mitigation measures are implemented and completed in a satisfactory manner prior to implementation of the proposed project. The attached table has been prepared to assist the responsible parties in implementing the mitigation measures . The table identifies the impact, mitigation measures, monitoring responsibility, mitigat ion timing, and provides space to confirm implementation of the mitigation measures . The numbering of mitigation measures follows the numbering sequence found in the IS. Mitigation measures that are referenced more than once in the IS are not duplicated in the MMRP table .

ROLES AND RESPONSIBILITIES
Unless otherwise specified herein, the City of Sacramento (City) is responsible for taking all actions necessary to implement the mitigation measures under its jurisdiction according to the specifications provided for each measure and for demonstrating that the action has been successfully completed.

Tim Moresco, P.E.

Department of Utilities
City of Sacramento
1395 35th Avenue
Sacramento, CA 95822
Email: [email protected]
Phone: (916) 808-1432
The City is responsible for overall administration of the MMRP and for verifying that City staff members have completed the necessary actions for each measure.

City of Sacramento 2
24th Street CSS In-Line Storage Pipe Project

REPORTING
The City shall document and describe the compliance of the activity with the required mitigation measures either within the attached table or a separate monitoring documentation as part of implementing the proposed project.

MITIGATION MONITORING AND REPORTING PROGRAM TABLE
The categories identified in the attached MMRP table are described below. ► Mitigation Measure - This column provides the verbatim text of the adopted mitigation measure.
► Implementing Party - This column identifies the party responsible for implementing the mitigation measure.
► Timing - This column identifies the time frame in which the mitigation will be implemented.
► Monitoring Party - This column identifies the party responsible for monitoring compliance with the requirements of the mitigation measure. ► Verification - This column is to be dated and signed by the person (either project manager or his/her designee) responsible for verifying compliance with the requirements of the mitigation measure.

City of Sacramento 3
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
Mitigation Measure CUL-1: In the Event that
Cultural Resources or Tribal Cultural Resources
are Discovered During Construction, Implement
Avoidance and Minimization Measures to Avoid
Significant Impacts and Procedures to Evaluate
Resources
• Planning construction to avoid tribal cultural
resources, archaeological sites and/or other
cultural resources; incorporating cultural
resources within parks, green-space or other
open space; covering archaeological resources;
deeding a cultural resource to a permanent
conservation easement; or other preservation
and protection methods agreeable to consulting
parties and regulatory authorities with jurisdiction
over the activity.
• Recommendations for avoidance of cultural
resources and tribal cultural resources will be
reviewed by the City representative, interested
culturally affiliated Native American tribes and
other appropriate agencies, in light of factors
such as costs, logistics, feasibility, design,
technology and social, cultural, and
environmental considerations and the extent to
which avoidance is consistent with project
objectives. Avoidance and design alternatives
may include realignment within the project area
to avoid cultural resources or tribal cultural
Construction
contractor
During
construction,
as applicable
City
City of Sacramento 4
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
resources, modification of the design to eliminate
or reduce impacts to cultural resources or tribal
cultural resources or modification or realignment
to avoid highly significant features within a
cultural resource or tribal cultural resource.
• Native American representatives from interested
culturally affiliated Native American tribes will be
invited to review and comment on these analyses
and shall have the opportunity to meet with the
City representative and its representatives who
have technical expertise to identify and
recommend feasible avoidance and design
alternatives, so that appropriate and feasible
avoidance and design alternatives can be
identified.
• If the discovered cultural resource or tribal
cultural resource can be avoided, the
construction contractor(s), will install protective
fencing outside the site boundary, including a
100-foot buffer area, before construction restarts.

The boundary of a cultural resource or a tribal
cultural resource will be determined in
consultation with interested culturally affiliated
Native American tribes and tribes will be invited
to monitor the installation of fencing. Use of
temporary and permanent forms of protective
fencing will be determined in consultation with
Native American representatives from interested
culturally affiliated Native American tribes.

City of Sacramento 5
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
• The construction contract or(s) will maintain the
protective fencing throughout construction to
avoid the site during all remaining phases of
construction. The area will be demarcated as an
“Environmentally Sensitive Area.”
If a cultural resource or a tribal cultural resource
cannot be avoided, the following performance
standard shall be met prior to continuance of
construction and associated activities that may result
in damage to or destruction of cultural resources or
tribal cultural resources:
• Each resource will be evaluated for California
Register of Historical Resources (CRHR)
eligibility through application of established
eligibility criteria (California Code of Regulations
15064.636), in consultation with consulting Native
American Tribes, as applicable.

If a cultural resource or a tribal cultural resource is determined to be eligible for listing in the CRHR, the
City will avoid damaging effects to the resource in
accordance with California PRC Section 21084.3, if
feasible. The City will coordinate the investigation of the find with a qualified archaeologist (meeting the
Secretary of the Interior’s Professional Qualifications Standards for Archeology) approved by the City and
with interested culturally affiliated Native American
tribes that respond to the City’s invitation. As part of the site investigation and resource assessment, the
City of Sacramento 6
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
City and the archaeologist shall consult with
interested culturally affiliated Native American tribes to assess the significance of the find, make
recommendations for further evaluation and
treatment as necessary and provide proper
management recommendations should potentially
impacts to the resources be determined by the City to
be significant. A written report detailing the site
assessment, coordination activities, and management
recommendations will be provided to the City
representative by the qualified archaeologist. These
recommendations will be documented in the project
record. For any recommendations made by interested
culturally affiliated Native American tribes that are not implemented, a justification for why the
recommendation was not followed will be provided in
the project record.

Native American representatives from interested
culturally affiliated Native American Tribes and the
City representative will also consult to develop
measures for long-term management of any
discovered tribal cultural resources. Consultation will be limited to actions consistent with the jurisdiction of the City and taking into account ownership of the
subject property. To the extent that the City has
jurisdiction, routine operation and maintenance within
tribal cultural resources retaining tribal cultural
integrity shall be consistent with the avoidance and
minimization standards identified in this mitigation
measure.

City of Sacramento 7
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
If the City determines that the project may cause a
significant impact to a tribal cultural resource, and
measures are not otherwise identified in the
consultation process, the following are examples of
mitigation capable of avoiding or substantially
lessening potential significant impacts to a tribal
cultural resource or alternatives that would avoid
significant impacts to the resource. These measures
may be considered to avoid or minimize significant
adverse impacts and constitute the standard by which
an impact conclusion of less than significant may be
reached:
• Avoid and preserve resources in place, including,
but not limited to, planning construction to avoid
the resources and protect the cultural and natural
context to incorporate the resources with
culturally appropriate protection and
management criteria.
• Treat the resource with culturally appropriate
dignity taking into account the Tribal cultural
values and meaning of the resource, including,
but not limited to, the following:
• Protect the cultural character and integrity of the
resource.
• Protect the traditional use of the resource.
• Protect the confidentia lity of the resource.

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24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
• Establish permanent conservation easements or
other interests in real property, with culturally
appropriate management criteria for the purposes
of preserving or using the resources or places.
• Protect the resource.

Mitigation Measure CUL-2: Implement Protection
Procedures in the Event of Inadvertent Discovery
of Human Remains
If an inadvertent discovery of human remains is made
at any time during project-related construction
activities, the following performance standards shall
be met prior to implementing or continuing actions
such as construction, which may result in damage to,
or destruction of human remains. In accordance with
the California Health and Safety Code (HSC), if
human remains are encountered during ground-
disturbing activities, the City shall immediately halt
potentially damaging excavation in the area of the
remains and notify the Sacramento County Coroner
and a professional archaeologist to determine the
nature of the remains. The Coroner is required to
examine all discoveries of human remains within 48
hours of receiving notice of a discovery on private or
State lands (HSC Section 7050.5[b]).

If the human remains are of historic age and are
determined to be not of Native American origin, the
City will follow the provisions of the HSC Section
Construction
contractor
During
construction, as
applicable

City
City of Sacramento 9
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
7000 (et seq.) regarding the disinterment and
removal of non-Native American human remains.

If the Coroner determines that the remains are those
of a Native American, he or she must contact the
Native American Heritage Commission (NAHC) by
phone within 24 hours of making that determination
(HSC Section 7050[c]). After the Coroner’s findings
have been made, the archaeologist and the NAHC-
designated Most Likely Descendant (MLD), in
consultation with the landowner, shall determine the
ultimate treatment and disposition of the remains.

The responsibilities of the City for acting upon
notification of a discovery of Native American human
remains are identified in California PRC Section
5097.9 et seq.

Implementation of Mitigation Measure CUL-2 would
reduce potential impacts related to human remains to
a less-than-significant level by requiring work to stop if suspected human remains are found,
communication with the county coroner, and the
proper identification and treatment of the remains
consistent with the California Health and Safety Code
and the California Native American Historical,
Cultural, and Sacred Sites Act.

Mitigation Measure HAZ-1: Prepare and
Implement a Health and Safety Plan
The contractor shall prepare a Health and Safety
Plan, which shall be reviewed and approved by the
City/construction
contractor
Prior to and
during
construction

City
City of Sacramento 10
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
City before initiating any demolition, grading, or other earthmoving activities. This plan shall require
measures that will be employed during all demolition
and construction activities to protect construction
workers and the public from exposure to hazardous
materials. These measures could include, but would
not be limited to, posting notices, limiting access to
the site, air monitoring, and watering. Contractors will be required to comply with state health and safety
standards for all demolition work. If necessary, this
shall include compliance with the federal OSHA and
Cal/OSHA requirements. In addition, the plan shall
include procedures to follow in the event that
contaminated soil and/or groundwater or other
hazardous materials are generated or encountered
during construction. Such procedures could include,
but would not be limited to, the following:
• all work shall be halted in the affected area and
the type and extent of the contamination shall be
determined;
• the project contractor shall notify the City if
evidence of previously undiscovered soil or
groundwater contamination (e.g., stained soil,
odorous groundwater) is encountered during
excavation;
• any contaminated areas shall be remediated in
accordance with recommendations made by
RWQCB and DTSC; and
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Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
• remediation activities could include but would not
be limited to the excavation of contaminated soil
areas and hauling of contaminated soil materials
to an appropriate offsite disposal facility, mixing
of onsite soils, and capping (i.e., paving or
sealing) of contaminated areas.

Mitigation Measure TRA-1: Traffic Control Plan
The City will require the contractor(s) to prepare a
Traffic Control Plan in accordance with City
requirements and professional engineering standards
prior to construction. The Traffic Control Plan could
include the following requirements:
• Emergency services access to local land uses
shall be maintained at all times for the duration of
construction activities. Local emergency service
providers shall be informed of proposed
construction activities and identified haul routes.
• Access to driveways during construction activities
shall be maintained.
• Limit traffic delays to no more than 20 minutes.
• Roadside safety protocols shall be complied with
to reduce the risk of accident.
• Use flaggers to direct traffic as necessary.

City/construction
contractor
Prior to and
during
construction

City
Mitigation Measure TCR-1a: In the Event that
Tribal Cultural Resources are Discovered During
Construction
contractor
During
construction, as
City
City of Sacramento 12
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
Construction, Implement Avoidance and
Minimization Measures to Avoid Significant
Impacts and Procedures to Evaluate Resources
If tribal cultural resources (such as structural features, unusual amounts of bone or shell, artifacts, or human
remains) are encountered at the project site during
construction, work shall be suspended within 100 feet
of the find (based on the apparent distribution of
cultural materials), and the construction contractor
shall immediately notify the project’s City
representative. Avoidance and preservation in place
is the preferred manner of mitigating impacts to tribal cultural resources. This will be accomplished, if
feasible, by several alternative means, including:
• Planning construction to avoid tribal cultural
resources, archaeological sites and/or other
cultural resources; incorporating cultural
resources within parks, green-space or other
open space; covering archaeological resources;
deeding a cultural resource to a permanent
conservation easement; or other preservation
and protection methods agreeable to consulting
parties and regulatory authorities with jurisdiction
over the activity.
• Recommendations for avoidance of tribal cultural
resources will be reviewed by the City
representative, interested culturally affiliated
Native American tribes and other appropriate
applicable
City of Sacramento 13
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
agencies, in light of factors such as costs,
logistics, feasibility, design, technology and
social, cultural and environmental considerations,
and the extent to which avoidance is consistent
with project objectives. Avoidance and design
alternatives may include realignment within the
project site to avoid tribal cultural resources,
modification of the design to eliminate or reduce
impacts to tribal cultural resources or modification
or realignment to avoid highly significant features
within a cultural resource or tribal cultural
resource.
• Native American representatives from interested
culturally affiliated Native American tribes will be
notified to review and comment on these
analyses and shall have the opportunity to meet
with the City representative and its
representatives who have technical expertise to
identify and recommend feasible avoidance and
design alternatives, so that appropriate and
feasible avoidance and design alternatives can
be identified.
• If the discovered tribal cultural resource can be
avoided, the construction contractor(s), will install
protective fencing outside the site boundary,
including a 100-foot buffer area, before
construction restarts. The boundary of a tribal
cultural resource will be determined in
consultation with interested culturally affiliated
City of Sacramento 14
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
Native American tribes and tribes will be notified
to monitor the installation of fencing. Use of
temporary and permanent forms of protective
fencing will be determined in consultation with
Native American representatives from interested
culturally affiliated Native American tribes.
• The construction contract or(s) will maintain the
protective fencing throughout construction to
avoid the site during all remaining phases of
construction. The area will be demarcated as an
“Environmentally Sensitive Area”.

If a tribal cultural resource cannot be avoided, the
following performance standard shall be met prior to
continuance of construction and associated activities
that may result in damage to or destruction of tribal
cultural resources:
• Each resource will be evaluated for California
Register of Historical Resources (CRHR)
eligibility through application of established
eligibility criteria (California Code of Regulations
15064.636), in consultation with consulting Native
American Tribes, as applicable.

If a tribal cultural resource is determined to be eligible for listing in the CRHR, the City will avoid damaging
effects to the resource in accordance with California
PRC Section 21084.3, if feasible. The City shall
coordinate the investigation of the find with a qualified archaeologist (meeting the Secretary of the Interior’s
City of Sacramento 15
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
Professional Qualifications Standards for Archeology)
approved by the City and with interested culturally
affiliated Native American tribes that respond to the
City’s notification. As part of the site investigation and resource assessment, the City and the archaeologist
shall consult with interested culturally affiliated Native American tribes to assess the significance of the find, make recommendations for further evaluation and
treatment as necessary and provide proper
management recommendations should potential
impacts to the resources be determined by the City to
be significant. A written report detailing the site
assessment, coordination activities, and management
recommendations shall be provided to the City
representative by the qualified archaeologist. These
recommendations will be documented in the project
record. For any recommendations made by interested
culturally affiliated Native American tribes that are not implemented, a justification for why the
recommendation was not followed will be provided in
the project record.

City of Sacramento 16
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
To the extent that the City has jurisdiction, routine
operation and maintenance within tribal cultural
resources retaining tribal cultural integrity shall be
consistent with the avoidance and minimization
standards identified in this mitigation measure.

If the City determines that the project may cause a
significant impact to a tribal cultural resource, and
measures are not otherwise identified in the
consultation process, the following are examples of
mitigation capable of avoiding or substantially
lessening potential significant impacts to a tribal
cultural resource or alternatives that would avoid
significant impacts to the resource. These measures
may be considered to avoid or minimize significant
adverse impacts and constitute the standard by which
an impact conclusion of less-than significant may be
reached:
• Avoid and preserve resources in place, including,
but not limited to, planning construction to avoid
the resources and protect the cultural and natural
context, or planning greenspace, parks, or other
open space, to incorporate the resources with
culturally appropriate protection and
management criteria.
• Treat the resource with culturally appropriate
dignity taking into account the tribal cultural
values and meaning of the resource, including,
but not limited to, the following:

City of Sacramento 17
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
• Protect the cultural character and integrity of the
resource.
• Protect the traditional use of the resource.
• Protect the confidentia lity of the resource.
• Establish permanent conservation easements or
other interests in real property, with culturally
appropriate management criteria for the purposes
of preserving or using the resources or places.
• Protect the resource.

Mitigation Measure TCR-1b: Implement Protection
Procedures in the Event of Inadvertent Discovery
of Human Remains
If an inadvertent discovery of human remains is made
at any time during project-related construction
activities or project planning, the following
performance standards shall be met prior to
implementing or continuing actions such as
construction, which may result in damage to or
destruction of human remains. In accordance with the
California Health and Safety Code (HSC), if human
remains are encountered during ground-disturbing
activities, the City shall immediately halt potentially damaging excavation in the area of the remains and
notify the Sacramento County Coroner and a
professional archaeologist to determine the nature of
the remains. The Coroner is required to examine all
Construction
contractor
During
construction, as
applicable
City
City of Sacramento 18
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
discoveries of human remains within 48 hours of
receiving notice of a discovery on private or State
lands (HSC Section 7050.5[b]).

If the human remains are of historic age and are
determined to be not of Native American origin, the
City will follow the provisions of the HSC Section
7000 (et seq.) regarding the disinterment and
removal of non-Native American human remains.

The responsibilities of the City for acting upon
notification of a discovery of Native American human
remains are identified in California PRC Section
5097.9 et seq.

Mitigation Measure TCR-1c: Tribal Monitoring
The applicant shall contract for a Native American
Tribal Monitor (monitor) at the project site. The
monitor shall possess the knowledge, skills, abilities, and experience established by the NAHC’s
Guidelines for Native American Monitors.

Native
American Tribal
Monitor

Prior to and
during
construction
City

City of Sacramento 19
24th Street CSS In-Line Storage Pipe Project
Mitigation Measures
Implementing
Party Timing
Monitoring
Party Verification
The applicant shall provide 48-hour advance notice to
the monitor prior to initial site excavation. Reasonable access to the project site shall be provided to the
monitor during initial ground-disturbing activities and may be extended should the area be determined to
require monitoring of deeper sediments. During the
course of the monitoring, the applicant and monitor
may adjust the frequency—from continuous to
intermittent—based on the conditions and
professional judgment regarding the potential to
impact cultural and tribal cultural resources.

The monitor will be compensated for his/her time.

The mechanism for reimbursing the tribal monitor will
be at the discretion of the applicant/developer and
may include: individual monitor being hired by the
applicant’s contractor as a temporary/on-call worker;
or the monitor being temporarily employed through a
staffing agency.

24th Street Storage Pipe Project (X14170106) Responses to Comments Received on the Initial Study/Mitigated Negative Declaration
The Initial Study/Mitigated Negative Declaration (IS/MND) for the 24 th Street Storage Pipe Project between H Street and N Street, and on K Street, between 24th Street and 25th Street (X14170106) (proposed project) was circulated for public comment from March 24, 2025 to April 24, 2025. Written comments were received as follows:

Date Commenter
March 26, 2025 Morgan Gross, Caltrans District 3
April 15, 2025 Plan Review Team Land Management, Pacific Gas and Electric Company
April 21, 2025 PG&E Plan Review Team, Pacific Gas and Electric Company April 22, 2025 Peter G. Minkel, Central Valley Regional Water Quality Control Board April 24, 2025 Molly Wright, Sacramento Metropolitan Air Quality Management District

The written comment letters are attached. The comments are acknowledged by the City and have been considered as part of the project planning and its implementation. The comments received did not identify any new significant effect, an increase in severity of an impact identified in the IS/MND, or any significant new information. Recirculation of the IS/MND is not required.

The responses below include responses to each comment letter submitted regarding the proposed project.

Response to Morgan Gross, Caltrans District 3, 3/26/25. Thank you for participating in the public review process of the IS/MND . The email from Morgan Gross says that Caltrans has no comments at this time but asks that his office be provided with copies of any further actions regarding this project as they would appreciate the opportunity to review and comment on any changes related to this project.

Response to Plan Review Team Land Management, Pacific Gas and Electric Company, 4/15/25. Thank you for participating in the public review process of the IS/MND. The comment is a standard comment letter that provides an attachment for gas facilities and an attachment for electric facilities and additional information for the city’s review.

Response to PG&E Plan Review Team, Pacific Gas and Electric Company, 4/21/25. Thank you for participating in the public review process of the IS/MND . The comment letter says that PG&Es review indicates that the proposed improvements do not appear to directly interfere with existing PG&E facilities or impact their easement rights. The letter also provides contact information if the project requires PG&E to relocate gas lines, requires gas or electric service, or if there are any project modifications. The comment does not address the adequacy of the IS/MND, has been noted for the record, and will be forwarded to the decisionmakers as part of their consideration of the proposed project.

Response to Peter G. Minkel, Central Valley Regional Water Quality Control Board, 4/22/25. Thank you for participating in the public review process of the IS/MND. The comment letter is a standard comment letter that provides background information regarding applicable regulations and required permits. The comment does not address the adequacy of the IS/MND, has been noted for the record, and will be forwarded to the decisionmakers as part of their consideration of the proposed project.

Response to Molly Wright, Sacramento Metropolitan Air Quality Management District, 4/24/25. Thank you for participating in the public review process of the IS/MND . The commenter recommends that the IS/MND include the District’s Basic Construction Emission Control Practices (BCECP). The BCECPs are described in the IS/MND on page 1- 5 under the Construction section and are included under Air Quality Impacts b and c, and Greenhouse Gas Emissions Impact b. No additional response is necessary.

From: Gross, Morgan@DOT on behalf of D3 Local Development@DOT To: Ron Bess
Subject: RE: Notice of Availability/Intent to Adopt the 24th Street Storage Pipe Project (X14170106) Date: Wednesday, March 26, 2025 10:37:05 AM
Good morning,
Thank you for including the California Department of Transportation (Caltrans) in the review process of the proposed 24th Street Storage Pipe Project. We wanted to reach out and let you know we have no comments at this time.

Please provide our office with copies of any further actions regarding this project as we would appreciate the opportunity to review and comment on any changes related to this project.

Should you have questions regarding these comments or require additional information, please contact me by phone (530) 720-2778 or via email at [email protected]
.

Thank you!

Morgan Gross
Transportation Planner | Local Development Review and Complete Streets Division of Planning, Local Assistance, and Sustainability Caltrans, District 3
Phone: (530) 720-2778
Email: [email protected]

From: Ron Bess <[email protected]>
Sent: Monday, March 24, 2025 1:14 PM
To: Tim Moresco <[email protected]>; Angelo R Vasquez <[email protected]>
Cc: Scott Johnson <[email protected]>; Ron Bess <[email protected]> Subject: Notice of Availability/Intent to Adopt the 24th Street Storage Pipe Project (X14170106)

EXTERNAL EMAIL. Links/attachments may not be safe.

Good Morning,

This email is to inform you that the City of Sacramento, Community Development Department, as Lead Agency, has issued the attached Notice of Availability/Intent to Adopt the 24
th Street Storage Pipe Project (X14170106)

The Comment Period is from March 24, 2025, to April 24, 2025.

The document is now available for public review and comment. The NOA/NOI is available, along with the Mitigated Negative Declaration and Appendices at the City’s Community Development Department webpage at:

https://www.cityofsacramento.gov/community-
development/planning/environmental/impact-reports

Comments are invited from all interested parties. Written comments on the Mitigated Negative Declaration should be submitted to the following address NO LATER THAN 4:00 pm on Thursday, April 24, 2025. All comments should be submitted via email or mailed to:

Ron Bess, Associate Planner
City of Sacramento
Community Development Department
Environmental Planning Services
300 Richards Blvd. 3
rd Floor
Sacramento, CA 95811
(916) 808-8272
[email protected]

Thank You.

Plan Review Team
Land Management
[email protected]

PG&E Gas and Electric Facilities Page 1
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April 15, 2025

Ref: Gas and Electric Transmission and Distribution

Dear Ron Bess,

Thank you for submitting project plans for our review. PG&E will review the submitted plans in relationship to any existing Gas and Electric facilities within the project area. If the proposed project is adjacent/or within PG&E owned property and/or easements, we will be working with you to ensure compatible uses and activities near our facilities.

Attached you will find information and requirements as it relates to Gas facilities (Attachment 1) and Electric facilities (Attachment 2). Please review these in detail, as it is critical to ensure your safety and to protect PG&E’s facilities and its existing rights.

Below is additional information for your review:

1. This plan review process does not replace the application process for PG&E gas or electric service your project may require. For these requests, please continue to work with PG&E Service Planning: https://www.pge.com/en/account/service- requests/building-and-renovation.html.

2. If the project being submitted is part of a larger project, please include the entire scope of your project, and not just a portion of it. PG&E’s facilities are to be incorporated within any CEQA document. PG&E needs to verify that the CEQA document will identify any required future PG&E services.

3. An engineering deposit may be required to review plans for a project depending on the size, scope, and location of the project and as it relates to any rearrangement or new installation of PG&E facilities.

Any proposed uses within the PG&E fee strip and/or easement, may include a California Public Utility Commission (CPUC) Section 851 filing. This requires the CPUC to render approval for a conveyance of rights for specific uses on PG&E’s fee strip or easement. PG&E will advise if the necessity to incorporate a CPUC Section 851filing is required.

This letter does not constitute PG&E’s consent to use any portion of its easement for any purpose not previously conveyed. PG&E will provide a project specific response as required.

Sincerely,

Plan Review Team
Land Management

PG&E Gas and Electric Facilities Page 2
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Attachment 1 – Gas Facilities

There could be gas transmission pipelines in this area which would be considered critical facilities for PG&E and a high priority subsurface installation under California law. Care must be taken to ensure safety and accessibility. So, please ensure that if PG&E approves work near gas transmission pipelines it is done in adherence with the below stipulations. Additionally, the following link provides additional information regarding legal requirements under California excavation laws: https://www.usanorth811.org/images/pdfs/CA-LAW-2018.pdf

1. Standby Inspection: A PG&E Gas Transmission Standby Inspector must be present during any demolition or construction activity that comes within 10 feet of the gas pipeline. This includes all grading, trenching, substructure depth verifications (potholes), asphalt or concrete demolition/removal, removal of trees, signs, light poles, etc. This inspection can be coordinated through the Underground Service Alert (USA) service at 811. A minimum notice of 48 hours is required. Ensure the USA markings and notifications are maintained throughout the duration of your work.

2. Access: At any time, PG&E may need to access, excavate, and perform work on the gas pipeline. Any construction equipment, materials, or spoils may need to be removed upon notice.

Any temporary construction fencing installed within PG&E’s easement would also need to be capable of being removed at any time upon notice. Any plans to cut temporary slopes exceeding a 1:4 grade within 10 feet of a gas transmission pipeline need to be approved by PG&E Pipeline Services in writing PRIOR to performing the work.

3. Wheel Loads: To prevent damage to the buried gas pipeline, there are weight limits that must be enforced whenever any equipment gets within 10 feet of traversing the pipe.

Ensure a list of the axle weights of all equipment being used is available for PG&E’s Standby Inspector. To confirm the depth of cover, the pipeline may need to be potholed by hand in a few areas.

Due to the complex variability of tracked equipment, vibratory compaction equipment, and cranes, PG&E must evaluate those items on a case-by-case basis prior to use over the gas pipeline (provide a list of any proposed equipment of this type noting model numbers and specific attachments).

No equipment may be set up over the gas pipeline while operating. Ensure crane outriggers are at least 10 feet from the centerline of the gas pipeline. Transport trucks must not be parked over the gas pipeline while being loaded or unloaded.

4. Grading: PG&E requires a minimum of 36 inches of cover over gas pipelines (or existing grade if less) and a maximum of 7 feet of cover at all locations. The graded surface cannot exceed a cross slope of 1:4.

5. Excavating: Any digging within 2 feet of a gas pipeline must be dug by hand. Note that while the minimum clearance is only 24 inches, any excavation work within 24 inches of the edge of a pipeline must be done with hand tools. So to avoid having to dig a trench entirely with hand tools, the edge of the trench must be over 24 inches away. (Doing the math for a 24 inch

PG&E Gas and Electric Facilities Page 3
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wide trench being dug along a 36 inch pipeline, the centerline of the trench would need to be at least 54 inches [24/2 + 24 + 36/2 = 54] away, or be entirely dug by hand.)

Water jetting to assist vacuum excavating must be limited to 1000 psig and directed at a 40° angle to the pipe. All pile driving must be kept a minimum of 3 feet away.

Any plans to expose and support a PG&E gas transmission pipeline across an open excavation need to be approved by PG&E Pipeline Services in writing PRIOR to performing the work.

6. Boring/Trenchless Installations: PG&E Pipeline Services must review and approve all plans to bore across or parallel to (within 10 feet) a gas transmission pipeline. There are stringent criteria to pothole the gas transmission facility at regular intervals for all parallel bore installations.

For bore paths that cross gas transmission pipelines perpendicularly, the pipeline must be potholed a minimum of 2 feet in the horizontal direction of the bore path and a minimum of 24 inches in the vertical direction from the bottom of the pipe with minimum clearances measured from the edge of the pipe in both directions. Standby personnel must watch the locator trace (and every ream pass) the path of the bore as it approaches the pipeline and visually monitor the pothole (with the exposed transmission pipe) as the bore traverses the pipeline to ensure adequate clearance with the pipeline. The pothole width must account for the inaccuracy of the locating equipment.

7. Substructures: All utility crossings of a gas pipeline should be made as close to perpendicular as feasible (90° +/- 15°). All utility lines crossing the gas pipeline must have a minimum of 24 inches of separation from the gas pipeline. Parallel utilities, pole bases, water line ‘kicker blocks’, storm drain inlets, water meters, valves, back pressure devices or other utility substructures are not allowed in the PG&E gas pipeline easement.

If previously retired PG&E facilities are in conflict with proposed substructures, PG&E must verify they are safe prior to removal. This includes verification testing of the contents of the facilities, as well as environmental testing of the coating and internal surfaces. Timelines for PG&E completion of this verification will vary depending on the type and location of facilities in conflict.

8. Structures: No structures are to be built within the PG&E gas pipeline easement. This includes buildings, retaining walls, fences, decks, patios, carports, septic tanks, storage sheds, tanks, loading ramps, or any structure that could limit PG&E’s ability to access its facilities.

9. Fencing: Permanent fencing is not allowed within PG&E easements except for perpendicular crossings which must include a 16 foot wide gate for vehicular access. Gates will be secured with PG&E corporation locks.

10. Landscaping: Landscaping must be designed to allow PG&E to access the pipeline for maintenance and not interfere with pipeline coatings or other cathodic protection systems. No trees, shrubs, brush, vines, and other vegetation may be planted within the easement area.

Only those plants, ground covers, grasses, flowers, and low-growing plants that grow unsupported to a maximum of four feet (4’) in height at maturity may be planted within the easement area.

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11. Cathodic Protection: PG&E pipelines are protected from corrosion with an “Impressed Current” cathodic protection system. Any proposed facilities, such as metal conduit, pipes, service lines, ground rods, anodes, wires, etc. that might affect the pipeline cathodic protection system must be reviewed and approved by PG&E Corrosion Engineering.

12. Pipeline Marker Signs: PG&E needs to maintain pipeline marker signs for gas transmission pipelines in order to ensure public awareness of the presence of the pipelines.

With prior written approval from PG&E Pipeline Services, an existing PG&E pipeline marker sign that is in direct conflict with proposed developments may be temporarily relocated to accommodate construction work. The pipeline marker must be moved back once construction is complete.

13. PG&E is also the provider of distribution facilities throughout many of the areas within the state of California. Therefore, any plans that impact PG&E’s facilities must be reviewed and approved by PG&E to ensure that no impact occurs which may endanger the safe operation of its facilities.

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Attachment 2 – Electric Facilities

It is PG&E’s policy to permit certain uses on a case by case basis within its electric transmission fee strip(s) and/or easement(s) provided such uses and manner in which they are exercised, will not interfere with PG&E’s rights or endanger its facilities. Some examples/restrictions are as follows:

1. Buildings and Other Structures: No buildings or other structures including the foot print and eave of any buildings, swimming pools, wells or similar structures will be permitted within fee strip(s) and/or easement(s) areas. PG&E’s transmission easement shall be designated on subdivision/parcel maps as “RESTRICTED USE AREA – NO BUILDING.”

2. Grading: Cuts, trenches or excavations may not be made within 25 feet of our towers.

Developers must submit grading plans and site development plans (including geotechnical reports if applicable), signed and dated, for PG&E’s review. PG&E engineers must review grade changes in the vicinity of our towers. No fills will be allowed which would impair ground-to- conductor clearances. Towers shall not be left on mounds without adequate road access to base of tower or structure.

3. Fences: Walls, fences, and other structures must be installed at locations that do not affect the safe operation of PG&’s facilities. Heavy equipment access to our facilities must be maintained at all times. Metal fences are to be grounded to PG&E specifications. No wall, fence or other like structure is to be installed within 10 feet of tower footings and unrestricted access must be maintained from a tower structure to the nearest street. Walls, fences and other structures proposed along or within the fee strip(s) and/or easement(s) will require PG&E review; submit plans to PG&E Centralized Review Team for review and comment.

4. Landscaping: Vegetation may be allowed; subject to review of plans. On overhead electric transmission fee strip(s) and/or easement(s), plant only low-growing shrubs under the wire zone and only grasses within the area directly below the tower. Along the border of the transmission line right-of-way, plant only small trees no taller than 10 feet in height at maturity. PG&E must have access to its facilities at all times, including access by heavy equipment. No planting is to occur within the footprint of the tower legs. Greenbelts are encouraged.

5. Reservoirs, Sumps, Drainage Basins, and Ponds: Prohibited within PG&E’s fee strip(s) and/or easement(s) for electric transmission lines.

6. Automobile Parking: Short term parking of movable passenger vehicles and light trucks (pickups, vans, etc.) is allowed. The lighting within these parking areas will need to be reviewed by PG&E; approval will be on a case by case basis. Heavy equipment access to PG&E facilities is to be maintained at all times. Parking is to clear PG&E structures by at least 10 feet.

Protection of PG&E facilities from vehicular traffic is to be provided at developer’s expense AND to PG&E specifications. Blocked-up vehicles are not allowed. Carports, canopies, or awnings are not allowed.

7. Storage of Flammable, Explosive or Corrosive Materials: There shall be no storage of fuel or combustibles and no fueling of vehicles within PG&E’s easement. No trash bins or incinerators are allowed.

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8. Streets and Roads: Access to facilities must be maintained at all times. Street lights may be allowed in the fee strip(s) and/or easement(s) but in all cases must be reviewed by PG&E for proper clearance. Roads and utilities should cross the transmission easement as nearly at right angles as possible. Road intersections will not be allowed within the transmission easement.

9. Pipelines: Pipelines may be allowed provided crossings are held to a minimum and to be as nearly perpendicular as possible. Pipelines within 25 feet of PG&E structures require review by PG&E. Sprinklers systems may be allowed; subject to review. Leach fields and septic tanks are not allowed. Construction plans must be submitted to PG&E for review and approval prior to the commencement of any construction.

10. Signs: Signs are not allowed except in rare cases subject to individual review by PG&E.

11. Recreation Areas: Playgrounds, parks, tennis courts, basketball courts, barbecue and light trucks (pickups, vans, etc.) may be allowed; subject to review of plans. Heavy equipment access to PG&E facilities is to be maintained at all times. Parking is to clear PG&E structures by at least 10 feet. Protection of PG&E facilities from vehicular traffic is to be provided at developer’s expense AND to PG&E specifications.

12. Construction Activity: Since construction activity will take place near PG&E’s overhead electric lines, please be advised it is the contractor’s responsibility to be aware of, and observe the minimum clearances for both workers and equipment operating near high voltage electric lines set out in the High-Voltage Electrical Safety Orders of the California Division of Industrial Safety (https://www.dir.ca.gov/Title8/sb5g2.html), as well as any other safety regulations.

Contractors shall comply with California Public Utilities Commission General Order 95 (http://www.cpuc.ca.gov/gos/GO95/go_95_startup_page.html) and all other safety rules. No construction may occur within 25 feet of PG&E’s towers. All excavation activities may only commence after 811 protocols has been followed.

Contractor shall ensure the protection of PG&E’s towers and poles from vehicular damage by (installing protective barriers) Plans for protection barriers must be approved by PG&E prior to construction.

13. PG&E is also the owner of distribution facilities throughout many of the areas within the state of California. Therefore, any plans that impact PG&E’s facilities must be reviewed and approved by PG&E to ensure that no impact occurs that may endanger the safe and reliable operation of its facilities.

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Central Valley Regional Water Quality Control Board
22 April 2025

Tim Moresco
City of Sacramento, Department of Utilities
1395 35th Street

Sacramento, CA 95822
[email protected]

COMMENTS TO REQUEST FOR REVIEW FOR THE MITIGATED NEGATIVE DECLARATION, CITY OF SACRAMENTO 24TH STREET COMBINED SEWER SYSTEM IN-LINE STORAGE PIPE PROJECT, SCH#2025031000, SACRAMENTO COUNTY
Pursuant to the State Clearinghouse’s 24 March 2025 request, the Central Valley Regional Water Quality Control Board (Central Valley Water Board) has reviewed the Request for Review for the Mitigated Negative Declaration for the City of Sacramento 24th Street Combined Sewer System In-Line Storage Pipe Project, located in Sacramento County.

Our agency is delegated with the responsibility of protecting the quality of surface and groundwaters of the state; therefore our comments will address concerns surrounding those issues.

I. Regulatory Setting
Basin Plan
The Central Valley Water Board is required to formulate and adopt Basin Plans for all areas within the Central Valley region under Section 13240 of the Porter-Cologne Water Quality Control Act. Each Basin Plan must contain water quality objectives to ensure the reasonable protection of beneficial uses, as well as a program of implementation for achieving water quality objectives with the Basin Plans. Federal regulations require each state to adopt water quality standards to protect the public health or welfare, enhance the quality of water and serve the purposes of the Clean Water Act. In California, the beneficial uses, water quality objectives, and the Antidegradation Policy are the State’s water quality standards. Water quality standards are also contained in the National Toxics Rule, 40 CFR Section 131.36, and the California Toxics Rule, 40 CFR Section 131.38.

The Basin Plan is subject to modification as necessary, considering applicable laws, policies, technologies, water quality conditions and priorities. The original Basin Plans were adopted in 1975, and have been updated and revised periodically as

City of Sacramento 24th Street - 2 - 22 April 2025
Combined Sewer System In-Line
Storage Pipe Project
Sacramento County

required, using Basin Plan amendments. Once the Central Valley Water Board has adopted a Basin Plan amendment in noticed public hearings, it must be approved by the State Water Resources Control Board (State Water Board), Office of Administrative Law (OAL) and in some cases, the United States Environmental Protection Agency (USEPA). Basin Plan amendments only become effective after they have been approved by the OAL and in some cases, the USEPA. Every three (3) years, a review of the Basin Plan is completed that assesses the appropriateness of existing standards and evaluates and prioritizes Basin Planning issues. For more information on the Water Quality Control Plan for the Sacramento and San Joaquin River Basins, please visit our website:
http://www.waterboards.ca.gov/centralvalley/water_issues/basin_plans/ Antidegradation Considerations
All wastewater discharges must comply with the Antidegradation Policy (State Water Board Resolution 68-16) and the Antidegradation Implementation Policy contained in the Basin Plan. The Antidegradation Implementation Policy is available on page 74 at:
https://www.waterboards.ca.gov/centralvalley/water_issues/basin_plans/sacsjr_2018

05.pdf
In part it states:

Any discharge of waste to high quality waters must apply best practicable treatment or control not only to prevent a condition of pollution or nuisance from occurring, but also to maintain the highest water quality possible consistent with the maximum benefit to the people of the State.

This information must be presented as an analysis of the impacts and potential impacts of the discharge on water quality, as measured by background concentrations and applicable water quality objectives.

The antidegradation analysis is a mandatory element in the National Pollutant Discharge Elimination System and land discharge Waste Discharge Requirements (WDRs) permitting processes. The environmental review document should evaluate potential impacts to both surface and groundwater quality.

II. Permitting Requirements
Clean Water Act Section 404 Permit
If the project will involve the discharge of dredged or fill material in navigable waters or wetlands, a permit pursuant to Section 404 of the Clean Water Act may be needed from the United States Army Corps of Engineers (USACE). If a Section 404 permit is required by the USACE, the Central Valley Water Board will review the permit application to ensure that discharge will not violate water quality standards. If the project requires surface water drainage realignment, the applicant is advised to contact the Department of Fish and Game for information on Streambed Alteration Permit requirements. If you have any questions regarding the Clean Water Act City of Sacramento 24th Street - 3 - 22 April 2025
Combined Sewer System In-Line
Storage Pipe Project
Sacramento County

Section 404 permits, please contact the Regulatory Division of the Sacramento District of USACE at (916) 557-5250.

Clean Water Act Section 401 Permit – Water Quality Certification If an USACE permit (e.g., Non-Reporting Nationwide Permit, Nationwide Permit, Letter of Permission, Individual Permit, Regional General Permit, Programmatic General Permit), or any other federal permit (e.g., Section 10 of the Rivers and Harbors Act or Section 9 from the United States Coast Guard), is required for this project due to the disturbance of waters of the United States (such as streams and wetlands), then a Water Quality Certification must be obtained from the Central Valley Water Board prior to initiation of project activities. There are no waivers for 401 Water Quality Certifications. For more information on the Water Quality Certification, visit the Central Valley Water Board website at:
https://www.waterboards.ca.gov/centralvalley/water_issues/water_quality_certificatio n/
Waste Discharge Requirements – Discharges to Waters of the State If USACE determines that only non-jurisdictional waters of the State (i.e., “non- federal” waters of the State) are present in the proposed project area, the proposed project may require a Waste Discharge Requirement (WDR) permit to be issued by Central Valley Water Board. Under the California Porter-Cologne Water Quality Control Act, discharges to all waters of the State, including all wetlands and other waters of the State including, but not limited to, isolated wetlands, are subject to State regulation. For more information on the Waste Discharges to Surface Water NPDES Program and WDR processes, visit the Central Valley Water Board website at:https://www.waterboards.ca.gov/centralvalley/water_issues/waste_to_surface_wat er/
Projects involving excavation or fill activities impacting less than 0.2 acre or 400 linear feet of non-jurisdictional waters of the state and projects involving dredging activities impacting less than 50 cubic yards of non-jurisdictional waters of the state may be eligible for coverage under the State Water Resources Control Board Water Quality Order No. 2004-0004-DWQ (General Order 2004-0004). For more information on the General Order 2004-0004, visit the State Water Resources Control Board website at:
https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/200 4/wqo/wqo2004-0004.pdf
Dewatering Permit
If the proposed project includes construction or groundwater dewatering to be discharged to land, the proponent may apply for coverage under State Water Board General Water Quality Order (Low Threat General Order) 2003-0003 or the Central Valley Water Board’s Waiver of Report of Waste Discharge and Waste Discharge Requirements (Low Threat Waiver) R5-2018-0085. Small temporary construction dewatering projects are projects that discharge groundwater to land from excavation activities or dewatering of underground utility vaults. Dischargers seeking coverage City of Sacramento 24th Street - 4 - 22 April 2025
Combined Sewer System In-Line
Storage Pipe Project
Sacramento County

under the General Order or Waiver must file a Notice of Intent with the Central Valley Water Board prior to beginning discharge.

For more information regarding the Low Threat General Order and the application process, visit the Central Valley Water Board website at:
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2003/ wqo/wqo2003-0003.pdf
For more information regarding the Low Threat Waiver and the application process, visit the Central Valley Water Board website at:
https://www.waterboards.ca.gov/centralvalley/board_decisions/adopted_orders/waiv ers/r5-2018-0085.pdf
Limited Threat General NPDES Permit
If the proposed project includes construction dewatering and it is necessary to discharge the groundwater to waters of the United States, the proposed project will require coverage under a National Pollutant Discharge Elimination System (NPDES) permit. Dewatering discharges are typically considered a low or limited threat to water quality and may be covered under the General Order for Limited Threat Discharges to Surface Water (Limited Threat General Order). A complete Notice of Intent must be submitted to the Central Valley Water Board to obtain coverage under the Limited Threat General Order. For more information regarding the Limited Threat General Order and the application process, visit the Central Valley Water Board website at:
https://www.waterboards.ca.gov/centralvalley/board_decisions/adopted_orders/gene ral_orders/r5-2016-0076-01.pdf
NPDES Permit
If the proposed project discharges waste that could affect the quality of surface waters of the State, other than into a community sewer system, the proposed project will require coverage under a National Pollutant Discharge Elimination System (NPDES) permit. A complete Report of Waste Discharge must be submitted with the Central Valley Water Board to obtain a NPDES Permit. For more information regarding the NPDES Permit and the application process, visit the Central Valley Water Board website at: https://www.waterboards.ca.gov/centralvalley/help/permit/

City of Sacramento 24th Street - 5 - 22 April 2025
Combined Sewer System In-Line
Storage Pipe Project
Sacramento County

If you have questions regarding these comments, please contact me at (916) 464-4684 or [email protected].

Peter G. Minkel
Engineering Geologist
cc: State Clearinghouse unit, Governor’s Office of Planning and Research, Sacramento

James Alcorn
ICF
[email protected]

From: Molly Wright
To: Ron Bess
Cc: Scott Johnson; Richard Muzzy
Subject: RE: Notice of Availability/Intent to Adopt the 24th Street Storage Pipe Project (X14170106) Date: Thursday, April 24, 2025 1:38:11 PM
Attachments: image003.png
image004.png
image005.png
image006.png
Good Afternoon Ron,

Thank you for providing Sac Metro Air District with the Mitigated Negative Declaration (MND), environmental review pursuant to the California Environmental Quality Act (CEQA) for the 24 th Street
Combined Sewer System In-Line Storage Pipe Project.

The MND uses Sac Metro Air District’s non-zero thresholds of significance for particulate matter emissions, and use of the non-zero thresholds requires implementation of our Basic Construction Emission Control Practices (BCECP), available on our website. We recommend that the MND explicitly include Sac Metro Air District BCECP as a mitigation measure.

Further, while we understand and accept the MND’s finding of less than significant construction- related air quality impacts to sensitive receptors, we do ask that you consider an added project measure to ensure cleaner construction equipment due to the Midtown Sacramento population density in close proximity to project construction. Specifically, we recommend that EPA-rated Tier 4 final diesel engines be used for all construction equipment, and that the project construction contractor provide a list of construction equipment with Tier 4 final engines as part of construction contract specifications.

Please let me know if you have questions.

Best Regards,

Molly Wright
Air Quality Planner/Analyst
Desk: (279) 207-1157
[email protected]
www.AirQuality.org

*** THIS EMAIL ORIGINATED OUTSIDE
AIRQUALITY.ORG ***
Good Morning,

The Comment Period is from March 24, 2025, to April 24, 2025.

https://www.cityofsacramento.gov/community-
development/planning/environmental/impact-reports

Ron Bess, Associate Planner
City of Sacramento
Community Development Department
Environmental Planning Services
300 Richards Blvd. 3
rd Floor
Sacramento, CA 95811
(916) 808-8272
[email protected]

Thank You.

COMBINED SEWER SYSTEM (CSS) IMPROVEMENTS24TH AND K STORAGE FACILITYCITY OF SACRAMENTOIMPROVEMENT PLANS FOR N N
NOT FORCONSTRUCTIONNo. C49624
90% SUBMITTALJULY 2024
#xxPIPING SYSTEM ABBREVIATIONS
NOT FORCONSTRUCTIONNo. C49624
“”
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GENERAL NOTESGENERAL NOTES (CONT'D)
NOT FORCONSTRUCTIONNo. C49624

GENERAL NOTES (CONT'D)

GENERAL NOTES (CONT'D)
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NOT FORCONSTRUCTIONNo. C49624

GENERAL NOTES (CONT'D)
C103C105
C100
C106C104C102C101
C105

KEY MAP
#106#133#176
#107#118#125
#175
#134
NOT FORCONSTRUCTIONNo. C49624
N ST
PH-1PH-2PH-7PH-11PH-8PH-9PH-10PH-4PH-3PH-6
NOT FORCONSTRUCTIONNo. C49624

MATSUI ALLEY

CAPITOL AVE

CAPITOL AVE
PH-12PH-13
NOT FORCONSTRUCTIONNo. C49624

LIESTAL ALLEY

LIESTAL ALLEY
L ST
L ST
PH-18PH-19
PH-14
PH-15PH-16
PH-17
NOT FORCONSTRUCTIONNo. C49624

KAYAK ALLEY

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K ST
PH-20
PH-21PH-22PH-23PH-24PH-25
NOT FORCONSTRUCTIONNo. C49624

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PH-26PH-27
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NOT FORCONSTRUCTIONNo. C49624

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PH-29
NOT FORCONSTRUCTIONNo. C49624

HISTORIC ALLEY

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H ST
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24TH ST23RD ST
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PH-30
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PH-34
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NOT FORCONSTRUCTIONNo. C49624
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25TH ST

N STMATSUI ALLEY

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CAPITOL AVE

CAPITOL AVE
NOT FORCONSTRUCTIONNo. C49624
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L ST

LIESTAL ALLEY

KAYAK ALLEY

KAYAK ALLEY
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K ST

JAZZ ALLEY

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J ST
NOT FORCONSTRUCTIONNo. C49624

IMPROV ALLEY

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NOT FORCONSTRUCTIONNo. C49624
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NOT FORCONSTRUCTIONNo. C49624
NOT FORCONSTRUCTIONNo. C49624
NOT FORCONSTRUCTIONNo. C49624
NOT FORCONSTRUCTIONNo. C49624
DETAIL
DETAIL
NOT FORCONSTRUCTIONNo. C49624
PLAN
NOT FORCONSTRUCTIONNo. C49624SECTIONSECTION
NOT FORCONSTRUCTIONNo. C49624SECTIONSECTION
NOT FORCONSTRUCTIONNo. C49624
179 2261518
18 14
131565641010614101313138 10
3 19
1 210
79 151710126136414516610813
19 NOT FORCONSTRUCTIONNo. C49624
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PLANSECTION
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DETAIL A
NOT FORCONSTRUCTIONNo. C49624
2405 K ST24TH ST
K ST
NOT FORCONSTRUCTIONNo. C49624
NOT FORCONSTRUCTIONNo. C49624

BYPASSING TRENCH PLATE TABLE
24TH STREET25TH STREET

J STREET

H STREET

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PLAN

I STREET

K STREETCAPITOL AVEM STREET
23RD STREET

Sacramento City CouncilJuly 1, 2025

Sacramento City Council
July 1, 2025