Unincorporated Solano County operates under a Phase II NPDES Small MS4 stormwater permit from the State Water Resources Control Board. Any construction or grading project that creates 2,500 square feet or more of impervious surface in the unincorporated county must obtain a grading permit under Solano County Code Chapter 31, which incorporates NPDES stormwater requirements including a Storm Water Pollution Prevention Plan (SWPPP) for larger sites.
Solano County's stormwater program is implemented by Resource Management — Public Works to comply with the federal Clean Water Act, the California Porter-Cologne Water Quality Control Act, and the State Water Board's Phase II Small MS4 General Permit (Order No. 2013-0001-DWQ as amended). Solano County Code Chapter 31 (Grading, Drainage, Land Leveling, and Erosion Control) is the implementing local ordinance: any grading permit with one acre or more of land disturbance must comply with NPDES Construction General Permit requirements, and any project creating 2,500+ square feet of impervious surface must obtain coverage under the County's Municipal NPDES Permit through the grading-permit process. SWPPPs must identify best management practices (BMPs) — desilting basins, fiber rolls, silt fences, stabilized construction entrances, hydroseeding — to control sediment and other construction-related pollutants. Post-construction, certain new and redevelopment projects must include Low Impact Development (LID) features such as bioretention, infiltration trenches, or pervious pavement to manage runoff onsite. The MS4 permit also prohibits non-stormwater discharges to the County storm-drain system: car-washing soap, paint, motor oil, pet waste, pool drainage, and similar contaminants may not enter gutters, catch basins, or roadside ditches.
Discharging pollutants to the storm-drain system, or failing to install and maintain required BMPs at a construction site, can result in a stop-work order from Solano County Public Works, additional inspection fees, and referral to the San Francisco Bay or Central Valley Regional Water Quality Control Board for civil penalties — which under the Clean Water Act can reach $10,000 per day per violation or more. Continuing violations may also be cited as misdemeanors under the general penalty provision of Solano County Code Chapter 1.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Solano County, CA
Solano County allows standard fence materials for residential lots without a general material ban. Section 28.94.I requires a solid wall or fence approved by...
Solano County, CA
Beyond height, Solano County's Zoning Code requires screening fences in certain situations. Section 28.94.I requires a minimum six-foot-high solid wall or fe...
Solano County, CA
In unincorporated Solano County, retaining walls not over 4 feet in height, measured from the bottom of the footing to the top of the wall, are exempt from a...
Solano County, CA
Solano County's Zoning Code (Chapter 28) sets fence height and placement, but cost-sharing and disputes over boundary fences are governed by California Civil...
Solano County, CA
Solano County Code Chapter 4 has no provision using the term 'hoarding,' but it addresses the underlying conditions: it bars keeping animals in numbers or co...
Solano County, CA
Solano County Code Chapter 4 contains no general ordinance prohibiting the feeding of wild animals such as deer, coyotes, or raccoons in unincorporated areas...
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