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File #: 123-2022    Version: 1
Type: Consent Calendar Status: Passed
File created: 3/22/2022 In control: CITY COUNCIL OF THE CITY OF NAPA
On agenda: 4/5/2022 Final action: 4/5/2022
Title: Storm Drain Infrastructure Condition Assessment
Attachments: 1. ATCH 1 - Amendment 2 to Agreement C2020-116

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

 

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 a Storm Drain Infrastructure Condition Assessment in the increased amount of $475,000 for a total contract amount not to exceed $875,000.

 

Body

DISCUSSION:

The City is under contract with National Plant Services (NPS) to conduct a Storm Drain Infrastructure Condition Assessment for an amount not to exceed $400,000.  In 2020 and 2021, NPS performed services for the City to inspect, video document, and rate 84,700 feet of pipe (over 16 miles) and 753 manholes/catch basins and inlets.  This represents approximately 10% and 15% of the City’s pipe and structures respectively. 

 

The results of the assessment completed to date determined 22% of the pipe segments had the two poorest conditions ratings (Major Defects/Blockages and Pipe Wall Failure/Blocked).  Another 26% had Structural Defects, Obstructions and/or Deposits.  The results are being used to develop prioritized projects to clear obstructions, rehabilitate and replace the storm drain infrastructure.  

 

The condition assessment work has been phased due to funding constraints.  Proceeding with the condition assessments for the storm drain system is critical to identify deficiencies so that plans can be developed to address damage prior to major system failures.  This proposed amendment will complete the assessment for additional infrastructure.  The combination of the original contract and this amendment will result in approximately 25% of the total system being evaluated. 

 

FINANCIAL IMPACTS:

On March 15, 2022, the City Council assigned $500,000 in American Rescue Plan Act (ARPA) funds to continue work on the Stormwater Assessment and authorized a FY21/22 budget adjustment for $500,000 to Project No. SD22PW01.  The proposed Amendment No. 2 will be funded from the SD22PW01 existing budget.  There is no General Fund impact.

 

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.

 

However, the Recommended Action is part of larger “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. 2 to Agreement C2020-116

 

NOTIFICATION:

None.