AB885 was introduced to the California State Assembly in February 1999 and approved in September 2000. On June 19, 2012, the State Water Resources Control Board adopted the Water Quality Control Policy for Siting, Design, Operation, and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy), which subsequently became effective on May 13, 2013. For a copy of OWTS Policy, click here. For a copy of Fact Sheet for the OWTS Policy, click here.
The policy requires that local agencies adopt the Tier 1 Standards or create a Tier 2 Local Agency Management Program (LAMP). The LAMP provides an alternate method from Tier 1 programs to achieve the same policy purpose which is to protect water quality and public health. The LAMP must be submitted to Central Valley Regional Water Quality Control Board for review and approval by May 13, 2016.
Yolo County Environmental Health Division is developing a Tier 2 LAMP which consists of two parts, an updated local ordinance and a new technical manual. These are currently drafted and can be accessed at the following links.
Part 1: DRAFT Ordinance Chapter 18, Yolo County Onsite Wastewater Treatment System. For a copy of the updated Chapter, click here.
Part 2: Yolo County Onsite Wastewater Treatment Systems Manual. For a copy of the DRAFT manual, click here. For a copy of the Appendices for the Manual, click here.
Both Chapter 18 and the manual are DRAFT and a work in progress. Please review the documents and we are interested in your input. You may send your comments to Environmental.Health@yolocounty.org. Thank you.
Improper human sewage disposal can cause ground water contamination, pollute streams and rivers, create breeding of nuisance insects, create noxious odors, and contribute to the spread of disease.
Environmental Health specialist issues permits for the installation, repair, and abandonment of domestic sewage disposal systems in order to prevent these problems.
Environmental Health specialist also investigates improper sewage disposal practices as reported by the public. The main enforcement code used by Environmental Health is ordinance 765 the Water Quality Law of the County of Yolo.
A permit to construct is required from Environmental Health whenever a septic tank is replaced or abandoned, or if leach lines are replaced or repaired.
Permits can be obtained at Yolo County Environmental Health.
To process the permit, the Environmental Health Specialist will need to know several items regarding the project:The assessor’s parcel number, the location of the house on the parcel, and site soils information (to help determine the leach field size and suitability for septic system installation).
Contractors with either a general engineering (A), or plumbing contractor (C-36), or sanitation system (C-42) license are qualified to repair or install septic systems under the regulations of the contractor’s licensing board. The Health Department cannot endorse contractors, however, a list of septic system installers that regularly do business in Yolo County is available by contacting our office.
What Can I Do To Properly Maintain The Septic System?
Use minimal amounts of water to avoid overloading the leach field.
Don’t dispose of pesticides, solvents, waste oil, anti-freeze or other hazardous chemical into the septic system. Improper disposal of these items can result in fines and expensive clean-up measures.
Limit the amounts of grease, food scraps, garbage, and non-biodegradable items going into the septic system.
Keep record of the location of the septic tank for future service pumping and have the septic tank pumped routinely by a licensed septage hauler.