Home > 14 > 12

Title: 14 - Buildings and Constructions

Chapter: 12 - On-Site Sewage Disposal Systems

Section: 60 - General standard prohibitions requirements

A.  Approved Disposal Required. All sewage shall be treated and disposed of in an approved manner.

B.  Discharge of Sewage Prohibited. Discharge of untreated or partially treated sewage or septic tank effluent directly or indirectly onto the ground surface or into public waters constitutes a public health hazard and is prohibited.

C.  Discharges Prohibited. No cooling water, air conditioning water, water softener brine, oil, hazardous materials or roof drainage shall be discharged into any system.

D.  System Capacity. Each system shall have adequate capacity to properly treat and dispose of the maximum projected daily sewage flow. The quantity of sewage shall be determined from Table B in Section 14.12.130, or other information the county determines to be valid that may show different flows. Such other information may include but not be limited to water meter readings, historical flow, etc.

E.  Material Standards. All materials used in on-site systems shall comply with standards set forth in these rules.

F.  Future Connection to Sewage System. In areas where a district has been formed to provide sewerage facilities, placement of house plumbing to facilitate connection to the sewerage system shall be encouraged.

G.  Plumbing Fixtures Shall Be Connected. All plumbing fixtures in dwellings and commercial facilities from which sewage is or may be discharged, shall be connected to, and shall discharge into an approved on-site system.

H.  Replacement Area. The replacement area shall not be disturbed to the extent that it is no longer suitable for wastewater disposal. The replacement area shall not be used for the construction of buildings, parking, driveways, swimming pools, or any other use that may adversely affect the replacement area.

I.  Operation and Maintenance. All systems shall be operated and maintained so as not to create a public health hazard or cause water pollution.

J.  Cesspools. The use of cesspools and seepage pits for on-site treatment and disposal shall be prohibited.

K.  Holding Tanks. The use of holding tanks shall be prohibited except where the regional board or county health officer determines that:

1.      It is necessary to abate an existing nuisance or health hazard or

2.      The proposed use is within a sewer service area, sewers are under construction or contracts have been awarded and completion is expected within two years, there is capacity at the wastewater treatment plant and the sewering agency will assume responsibility for maintenance of the tanks or

3.      It is for use at a campground or similar temporary public facility where a permanent sewage disposal system is not necessary or feasible and maintenance is performed by a public agency.

L.  Lot/Parcel Size. It is the general policy of the county that all new parcels proposed for on-site sewage systems shall have a minimum of twenty thousand square feet of usable area, unless it is demonstrated that a smaller lot size will conform with the provisions of this chapter and any potential cumulative effects on groundwater or surface water have been evaluated and considered. In all cases the minimum lot size/parcel size must conform with other county ordinances and the adopted general plan.

M.  Property Lines Crossed. An on-site sewage treatment and disposal system shall be installed or proposed to be installed on the same parcel of land upon which the waste is being generated, and such land shall be the land of the owner of the system. When the property owner can demonstrate to the satisfaction of the health officer that the project parcel cannot support an on-site system and land immediately adjacent to the source of the wastewater can support the on-site system but is on another parcel of land and is the only viable method of wastewater disposal, an on-site sewage system may cross property lines. The county may impose conditions of approval which may include but not be limited to the following:

        1.  A recorded permanent utility easement and covenant against conflicting uses, in a form approved by the county, is required whenever a system crosses a property line. The easement must accommodate that part of the system, including setbacks, which lies beyond the property line, and must allow entry to install, maintain and repair the system and agreeing not to put that portion of the other lot or parcel to a conflicting use and

        2.  Whenever an on-site system is located on one lot or parcel and the facility it serves is on another lot or parcel, the owner shall execute and record in the county land title records, on a form approved by the county, an easement and a covenant in favor of the county, and allowing its officers, agents, employees and representatives to enter and inspect, including by excavation, that portion of the system, including setbacks, on the other lot or parcel.

N.  Temporary/Portable Toilets. Chemical or other acceptable portable toilets may be used for temporary or limited use such as recreational events, farm labor, construction sites, or public gatherings/ events provided, the pumping or cleaning of the portable toilet is the contractual responsibility of the sewage disposal service providing the portable toilet. Each portable toilet shall display the name of the business that is responsible for servicing the unit.


(Ord. 2005-25B §§5, 6 Ord. 88-34 § 2 (part), 1988.)