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Oxnard staff recommend $1.25M stormwater filter contract with Downstream Services
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Summary
City staff told the Public Works & Transportation Committee that the city should authorize a contract with Downstream Services Inc. to inspect, clean and replace cartridge stormwater filters across three community facilities districts, a step officials say is needed to meet MS4 permit obligations; the contract cap is $1.25 million with work starting July 2026.
Patrick Fleming, project manager in Oxnard City's special districts division, told the Public Works & Transportation Committee that staff recommends the City Council approve agreement number 32600348 with Downstream Services Incorporated to provide stormwater filter replacement and maintenance.
Fleming said the agreement would be for an initial one-year term from March 20, 2026, to March 19, 2027, with up to four consecutive one-year extension options and a total not-to-exceed amount of $1,250,000. "The total cost for this agreement shall not exceed $1,250,000 for stormwater filter replacement and maintenance services," Fleming said.
Staff described the work as including initial and annual maintenance of storm vaults, ongoing maintenance and repair of vault components, required traffic control and permits, and furnishing all necessary labor, materials and equipment to inspect and maintain vaults and cartridge filters. The contractor must document vault and filter conditions and identify any structural repairs needed to vaults or hatches.
Fleming told the committee the scope covers 821 filter cartridges in 64 vaults within CFD 2 Westport and CFD 4 Seabridge, and 2,274 filter cartridges in 278 vaults within CFD 5 River Park. He said the work is tentatively scheduled to begin in July 2026 and that staff will coordinate with each district's homeowners associations and neighborhood councils to inform residents of the maintenance schedule.
The presentation noted regulatory drivers for the work: the proposed agreement is intended to help the city comply with the Federal Water Pollution Control Act through California's Municipal Separate Storm Sewer System (MS4) permit, which requires verification of proper maintenance and operation of post-construction best management practices.
Fleming summarized the procurement process: the city published specification PW26-59 on Dec. 10, 2025, with bids due Jan. 14, 2026. The city received five bids; Fleming said Downstream Services Incorporated submitted the lowest responsive bid ($65,781) and procurement staff reviewed documentation and prior work and determined the contractor could satisfactorily complete the services. Fleming also noted the prior one-year agreement (32500236) with Downstream expired on Jan. 21, 2026, and that $665,932 was spent under that prior agreement in 2025.
Funding for the contract would come from assessments in CFD 2 Westport, CFD 4 Seabridge and CFD 5 River Park and from the FY2025-26 adopted budget. Fleming emphasized there is no guaranteed spending amount and the division will only pay for services that are approved and rendered.
The committee recommendation to the City Council was to approve and authorize agreement 32600348; Fleming closed by inviting questions from the committee. The recommendation will move to the City Council for consideration; no formal council action appears in the committee presentation.
