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City of Rialto·California

Technical Consultant Services to assist with the National Pollution Discharge Elimination System (NPDES) Program

Closes 6/4/2026$150k – $600kRequest for Proposal
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Description

The City of Rialto is seeking a qualified consulting firm to serve as its “one‑shop” technical consultant for the National Pollution Discharge Elimination System (NPDES) Program. The consultant will provide ongoing, as‑needed services that cover design review, regulatory representation, inspection, and training related to storm‑water and wastewater compliance for the city and its constituents. The effort is intended to be continuous, supporting the city’s MS4 (Municipal Separate Storm‑Drain System) obligations, local ordinance updates, and enforcement actions. • Conduct design reviews, BMP selection, and field inspections for construction, industrial, commercial, and residential storm‑water projects. • Act as the City’s representative before the County Permittee, Santa Ana Regional Water Quality Control Board, and other regulatory agencies; prepare reports, annual NPDES filings, and fee‑recovery models. • Perform routine inspections, issue corrective notices, maintain the MS4 database, and provide bilingual (English/Spanish) inspection staff with required certifications (PC‑832, QSP). • Deliver annual in‑house training on NPDES compliance, storm‑water best practices, and related environmental regulations. • Support the City’s policy development, ordinance revisions, and enforcement actions, and coordinate with other municipal programs (water conservation, utilities, engineering).

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Yazdan Emrani(Director of Public Works)

(909) 421-7279

Key dates

Opened
5/13/2026
Questions due
5/20/2026
Closes
6/4/2026

Last updated

Details

Type
Request for Proposal
Industry
Environmental Services
NAICS
541620
Solicitation №
26-028

Budget estimate

$150,000 – $600,000

The RFP does not publish a fixed contract value. Similar municipal NPDES consulting contracts in Southern California typically range from $100,000 for limited‑scope, annual‑retainer work up to $500,000‑$1,000,000 for comprehensive multi‑year programs that include staff, inspections, training, and regulatory representation. Because the City has not disclosed a ceiling and the work is “as‑needed,” a reasonable estimate would be $150,000‑$600,000 over the first year, with potential extensions.

AI estimate from the solicitation

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