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File #: 465-2025    Version: 1
Type: Consent Calendar Status: Agenda Ready
File created: 10/31/2025 In control: CITY COUNCIL OF THE CITY OF NAPA
On agenda: 11/18/2025 Final action:
Title: Storm Drain Infrastructure Condition Assessment
Attachments: 1. ATCH 1 – Amendment No. 6 to Agreement C2020-116
Date Ver.Action ByActionResultAction DetailsMeeting DetailsVideo
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To:                     Honorable Mayor and Members of City Council

 

From:                     Julie Lucido, Public Works Director

 

Prepared By:                     Tim Wood, Senior Civil Engineer

                                          

TITLE:

Title

Storm Drain Infrastructure Condition Assessment

 

LABEL

RECOMMENDED ACTION:
Recommendation

 

Approve and authorize the Public Works Director to execute on behalf of the City an amendment to Agreement No. C2020-116 with National Plant Services, Inc., for the Storm Drain Infrastructure Condition Assessment in the increased amount of $500,000 for a total contract amount not to exceed $2,075,000.

Body

 

DISCUSSION:

The City entered into a contract with National Plant Services (NPS) to conduct a Storm Drain Infrastructure Condition Assessment.  NPS was selected through a competitive proposal process.  The agreement has been amended five times as funding became available to extend the services to assess additional sections of the City’s storm drain system.  To date, NPS has inspected, video documented and provided condition ratings for 168,000 feet of pipe (almost 32 miles) and 1265 manholes, catch basins, and inlets.  This represents approximately 35% and 48% of the City’s pipe and structures respectively.  Additionally, NPS has removed debris and cleaned over 115,000 feet of pipe. The results are being used to develop prioritized projects to clear obstructions, rehabilitate and replace the storm drain infrastructure.  The City recently completed a project that rehabilitated 5,375 feet of the worst rated pipes and this storm drain condition assessment was critical for identifying the specific pipe segments.

 

Proceeding with the condition assessments for the storm drain system is necessary to identify deficiencies so that additional plans can be developed to address damage prior to major system failures.  The proposed amendment will bring total system evaluation to approximately 50-55%.

 

FINANCIAL IMPACTS:

Funding is available for this phase of the project from Measure G.  $250,000 was budgeted in the Development Engineering’s operating budget in both Fiscal Year 2025/2026 and Fiscal Year 2026/2027 ($500,000 total) to complete additional assessments.  There is no General Fund impact beyond what has been budgeted for Measure G funds under project 19MEASG003 - Stormdrain Cleaning and Assessments.

 

CEQA:

The Public Works Director has determined that the Recommended Action described in this Agenda Report is not in-and-of-itself a “project” (pursuant to CEQA Guidelines Section 15378) since it does not result in a physical change in the environment.  It is also exempt pursuant to CEQA Guideline 15301 as the maintenance of existing facilities which is specifically defined in the CEQA Guidelines to include the maintenance of existing utility lines.  Finally, it is also exempt pursuant to CEQA Guideline 15306 as information collection regarding the existing condition of the City’s storm drain system that will eventually lead to a future repair project

 

However, the Recommended Action is part of larger repair “projects” that will be subject to environmental review in accordance with CEQA at the “earliest feasible time” prior to “approval” consistent with CEQA Guidelines Sections 15004 and 15352.  The larger “projects” are repair/replacement of storm drains, and staff plans to bring back a CEQA analysis of those projects to Council prior to award of construction contracts.

 

 

DOCUMENTS ATTACHED:

ATCH 1 - Amendment No. 6 to Agreement C2020-116

 

NOTIFICATION:

None.