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Land Use Review and Onsite Wastewater (septic) Programs

Water Protection, Land Use & Onsite Systems

Programs to help protect water quality, public health and the environment through review, permitting, inspection and technical guidance. These services support safe development, oversight of septic systems and responsible land-use decisions for property owners, businesses and communities.

Water Protection and Land Use

Information on septic systems, water wells, groundwater protection and land use permitting to ensure safe water and wastewater management in San Mateo County.

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Land Use, Septic & Wells

Guidance on permitting and inspection for septic systems, water wells and land use in unincorporated areas of San Mateo County.

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Onsite Wastewater Treatment Systems (OWTS)

If you live in an area of San Mateo County that does not have a municipal sewer system, you must dispose of sewage and wastewater on your own property.

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Septic Pumper Business & Trucks

Septic pumper businesses and vehicles must meet Environmental Health Services certification, inspection and permitting requirements.

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Planning & Building Application Review

Adequate and appropriate sewage disposal and/or potable water supply is required.

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Soil Percolation Testers, Certified Septic Installers & Pumpers, Well Service, Well Drillers and Consultants

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