For City Council Meeting September 8, 2026
TO: Honorable Mayor and City Council
APPROVAL: Tanya Williams, City Manager
FROM: Yazdan Emrani, P.E., Director of Public Works
Title
Request City Council to: (1) Approve the National Pollutant Elimination System Stormwater Permit Implementation Agreement, Santa Ana Region Between the City of Rialto and the San Bernardino County Flood Control District.
Body
RECOMMENDATION
Staff recommends that the City Council:
Approve the National Pollutant Elimination System Stormwater Permit Implementation Agreement, Santa Ana Region between the City of Rialto and the San Bernardino County Flood Control District
BACKGROUND
On October 19, 1990, the City of Rialto entered, as a co-permittee, into the area-wide National Pollutant Discharge Elimination System (NPDES) Permit with the County Flood Control District of San Bernardino. The NPDES Permit is referred to as the Municipal Separate Storm Sewer System (MS4) and is administered by the California Regional Water Quality Control Board. The current Municipal Separate Storm Sewer System (“MS4”) Permit is issued jointly to the County of San Bernardino, the San Bernardino County Flood Control District (collectively hereinafter referred to as “County”), and the sixteen incorporated cities (“co-permittees”) in the Santa Ana River Watershed portion of San Bernardino County. The San Bernardino County Flood Control District is the Principal Permittee, and its primary responsibilities are to administer the overall stormwater program in conjunction with the cities, lead in the development of programs, act as the liaison with water board staff, and prepare the consolidated required reports.
One of the requirements of the MS4 Permit is that the District and the Co-Permittees enter into an Agreement for the purpose of delegating program responsibilities and establishing a formulated cost-sharing program. This program is designed to comply with Environmental Protection Agency regulations and ...
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