Environmental Rules in Milpitas, CA (2026)
4 verified environmental rules for Milpitas, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
In the City of Milpitas, it is unlawful to discharge nonstormwater or contaminated stormwater into any City storm drain or watercourse under Chapter XI-16, which lists prohibited pollutants and requires Low Impact Development measures for regulated development projects. The City Manager administers the program under the City's MS4 permit.
Milpitas Stormwater and Storm Drain Discharge Rules
Significant RestrictionsMilpitas Municipal Code § XI-16-5
It shall be unlawful to discharge nonstormwater or contaminated stormwater into any City storm drain or watercourse. Prohibited discharges include, but are not limited to refuse, solid waste, sewage, commercial and industrial wastes, petroleum products, chemicals, soaps and detergents, solvents, paints, contaminated or chlorinated water from pools, spas and fountains (including those treated wi...
Erosion Control
Any grading, excavation or clearing permit issued in the City of Milpitas must come with an erosion control plan that follows the citywide Engineering Design Guidelines' Stormwater chapter, signed by a registered Civil Engineer, and slope protection such as planting must go in before final inspection under Milpitas Municipal Code Section II-13-10.
Milpitas Grading Erosion & Sediment Control
Some RestrictionsMilpitas Municipal Code § II-13-10
All aspects of Stormwater Quality protection shall be adhered to, and erosion control plans shall be prepared to be consistent with Section XIII, Stormwater of the Engineering Design Guidelines per Ordinance 66.3 and this section. In case of conflict between this section and Engineering Design Guidelines, the stricter requirement shall be followed. .01Erosion Control Plan. The plan shall be sig...
Flood Zones
In the City of Milpitas, any construction or development within a FEMA-mapped area of special flood hazard requires a development permit from the Floodplain Administrator before work begins. Chapter XI-15 sets the application requirements, elevation data, and certifications needed, and the City Manager administers the program.
Milpitas Floodplain Development Permit Rules
Some RestrictionsMilpitas Municipal Code § XI-15-4.1
A development permit shall be obtained before any construction or other development begins within any area of special flood hazard established in Section XI-15-3.2. Application for a development permit shall be made on forms furnished by the Floodplain Administrator and may include, but not be limited to: plans in duplicate drawn to scale showing the nature, location, dimensions, and elevation ...
Flood Elevation Requirements
In the City of Milpitas, new residential construction in a mapped flood hazard area must have its lowest floor, including any basement, elevated at least one foot above the base flood elevation, or higher in Zone AO, under Chapter XI-15's flood hazard reduction standards. Nonresidential buildings may floodproof instead of elevating.
Milpitas Base Flood Elevation Requirements
Some RestrictionsMilpitas Municipal Code § XI-15-5.1(c)(1)
(1)Residential construction, new or substantial improvement, including manufactured homes, shall have the lowest floor, including basement:(i)In an AO Zone, elevated above the highest adjacent grade to a height exceeding the depth number specified in feet on the FIRM by at least one (1) foot, or elevated at least three (3) feet above the highest adjacent grade if no depth number is specified.(i...
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