Liquid Waste & Onsite Sewage Disposal


The purpose of the Liquid Waste Program is to protect the health of the public and environment from the improper disposal of sewage from on-site sewage systems and greywater systems. This is accomplished through the evaluation and permitting of on-site sewage systems, greywater systems, and septage haulers.


Onsite Sewage Disposal 

A permit and inspection is required to ensure that onsite sewage treatment and disposal systems are properly sited, designed, constructed, operated and destroyed to protect public health and the environment.

Onsite Wastewater Treatment System (OWTS) Requirements 

The Local Agency Management Program (LAMP) authorizes Sierra County Environmental Health to provide local oversight of onsite wastewater treatment systems (septic systems), greywater systems and liquid waste haulers.
2018 Local Agency Management Program (LAMP)

Qualified Professionals

Individuals licensed or certified by a State of California agency to design OWTS and practice as professionals for other associated reports, as allowed under their license or registration.

Qualified Professional List

Liquid Waste Haulers

Environmental Health registers businesses and individuals who perform septic tank and chemical toilet pumping in Sierra County in accordance with California health & Safety Code Section 117400et seq.

Liquid Waste Hauler List


US EPA Homeowner's Guide to Septic Systems