For purposes of this article, the following words and terms have the following meanings:
"Alteration"means expansion and/or modification of an existing system, or any part thereof.
"Alternative system"means any on-site sewage system consisting of treatment and/or disposal components other than a standard system for which the division may determine meets the requirements of this article for a renewable operating permit as specified in the On-Site Sewage Manual.
"Appeal"means the administrative process that allows a person to request a reconsideration of a division determination or decision regarding a provision or requirement of the On-Site Sewage Manual.
"Applicant"means a property owner or the property owner's authorized representative.
"Authorization notice"means a written document issued by the division which establishes that an existing on-site sewage disposal system appears adequate to serve the purpose for which a particular application is made.
"Authorized representative"means a person or persons legally authorized by the real property owner to act on the real property owner's behalf on matters pertaining to application for permits and services for the real property.
"Bedroom"means any room designated as such by the county's chief building official having jurisdiction.
"Building permit"means a permit issued pursuant to Chapter 15, Article 15.04 by the county building services division.
"Certificate of satisfactory completion"means the document, issued by the division that indicates the system was installed in compliance with this article and the conditions of approval on the system permit.
"Cesspool"means an excavation in the ground receiving sewage, designed to retain the organic matter and solids, while allowing the liquids to seep into the soil.
"Consultant"means one of the following persons (exclusive of division personnel) retained to provide services under this article:
1. California certified engineering geologist;
2. California certified professional soil scientist;
3. California registered civil engineer;
4. California registered environmental health specialist; or
5. California registered geologist.
"Director"means the director of the Placer County division of environmental health services, or designee.
"Disposal area"means the entire area used for underground dispersion of the liquid portion of sewage.
"Disposal trench"means a ditch or trench with vertical sides and substantially level bottom designed to receive sewage effluent.
"Distribution box"means a structure that receives septic tank or other treatment facility effluent and distributes it to the disposal area.
"Division"means the Placer County department of health and human services, division of environmental health services, its director and designated employees.
"Effective soil"means permeable, unsaturated, undisturbed native soil providing sufficient aeration and retention for optimal treatment of sewage effluent. Effective soil excludes soil layers that meet the criteria for "conditions associated with saturation"; "limiting layers"; soils containing more than 50% rock fragments greater than two millimeters in diameter; soils with stones, cobbles, gravel, and rock fragments with too little soil material to fill interstices larger than one millimeter in diameter; or soil texture classes of sand, unless otherwise specified in Chapter 21 Seepage Pit Requirements of the Manual.
"Effective soil depth"means the depth of effective soil from the bottom of the dispersal trench or drip tubing to a restrictive layer of groundwater.
"Effluent"means sewage, water, or other liquid, partially or completely treated or in its natural state, flowing out of a septic tank, supplemental treatment unit, disposal area or other system component.
"Existing system"means any installed system constructed in conformance with the rules, laws and local ordinances in effect at the time of construction.
"Failing on-site system"means any system which discharges untreated or inadequately treated sewage or septic tank effluent directly or indirectly onto the ground surface, into protected waters, or into a dwelling. Also, any system not operated in compliance with permit conditions including, but not limited to, operation, maintenance and monitoring requirements, use of unapproved components, unapproved modifications to the originally permitted design, or an alternative system with monitoring sample results which do not meet parameters as required by this article and the On-Site Sewage Manual. A failure also includes either wastewater exfiltration to groundwater from, or groundwater infiltration into, a septic tank.
"Graywater disposal system"means an on-site sewage disposal system designed for the collection, treatment and disposal of graywater only.
"Land use project"means any entitlement or application process, initiated through the county pursuant to Chapters 16 and 17 of the Placer County Code including, but not limited to, a general plan amendment, rezoning, use permit, variance, zoning clearance, design review, tentative map, parcel map, certificate of compliance, and minor boundary adjustment.
"Minimum useable sewage disposal area (MUSDA)"means the amount of ground surface expressed in square feet, that is required for sewage disposal when creating new lots or parcels in the tentative or parcel map process. The amount of land area is based on the percolation rate and the type of leach field distribution method.
"Occupant"means the person occupying or otherwise in real or apparent charge and control of the dwelling and/or real property.
"On-site sewage manual"or "Manual" means the document containing implementing standards and requirements of this article, including specific detail on acceptable on-site sewage treatment and disposal systems and processes, developed by the division and the wastewater advisory committee and adopted by resolution of the board of supervisors.
"Owner"means the person or persons, trust, firm, corporation, limited liability company or partnership that is the owner of record of the real property, or premises or facility as identified on the last County equalized assessment roll.
"Permit"means the written document, issued and signed by the division, which authorizes specific system work.
"Person"means any individual (owner or authorized representative), corporation, association, firm, organization, partnership, or company.
"Pressure distribution system"means any system designed to uniformly distribute septic tank or other treatment unit effluent under pressure in an absorption facility or other treatment/disposal unit.
"Pressure transport piping"means piping which conveys septic tank or other treatment unit effluent to a pressure distribution manifold by use of a pump.
"Public sewer system"means any sewer system constructed, installed, maintained, operated and owned by or for a municipality or public entity established for sewage disposal purposes.
"Renewable operating permit"means that administrative document issued by the division authorizing the initial and/or continued use of certain alternative systems, as specified in the On-Site Sewage Manual.
"Repair"means installation, replacement and or connection of the portion(s) of a system necessary to eliminate a public health hazard or pollution of public waters created by a failing system.
"Replacement area"means a separate, designated area that is sized to accommodate 100% of the daily design flow of the project.
"Septic tank"means a watertight receptacle which receives sewage from a building or structure, is designed to separate solids from liquids, retains and digests organic matter and discharges the resulting effluent to a second treatment unit or to a soil absorption facility.
"Sewage"means wastewater that is designated as either "blackwater" and/or "graywater" and/or "blackwaste."
1. "Blackwater" means wastewater contaminated with human or kitchen wastes, generally originating from toilets and kitchen sinks. It includes, but is not limited to, wastewater discharges from kitchen sinks, garbage grinders, water closets, toilets, urinals or similar fixtures alone or in combination with other wastewater.
2. "Graywater" means wastewater, exclusive of blackwater or industrial waste, deposited into plumbing drain systems or exiting directly from wastewater generating appliances. It includes, but is not limited to, wastewater discharges from washing machines, bathtubs, showers, bathroom washbasins, and laundry tubs.
3. "Blackwaste" means human body wastes including feces, urine, other extraneous substances of body origin and toilet paper.
"Site"means an area of a lot or parcel designated for a specific purpose including an approved area for sewage disposal, building, etc.
"Site evaluation"means the first step in obtaining an on-site sewage system construction permit or for determining feasibility for a future system during the entitlement process. The evaluation consists of specific soils testing, including soil profile testing and percolation rate; or soil boring for seepage pit systems.
"Slope"means the rise or fall in feet per 100 feet of horizontal distance. Slope is expressed as a percent of grade. For example: a land surface at a 45 degree angle has a slope of 100%.
"Soil"means the unconsolidated mineral or organic matter on the surface of the earth that has been subjected to and influenced by geologic and environmental factors of: parent material, climate, macro-and micro-organisms, and topography, all acting over a period of time and producing a product—soil—that differs from the material from which it is derived in many physical, chemical, biological, and morphological properties and characteristics.
"Soil profile"means an excavation of sufficient size and depth to allow thorough examination of the soil to evaluate its suitability for sewage disposal.
"Standard system"means an on-site sewage system, which meets the requirements of the On-Site Manual, and is comprised of a two-compartment septic tank for primary treatment and gravel or gravelless disposal trenches. Effluent will flow to the trenches by gravity, or may be pumped to the first distribution box of the trenches.
"Supplemental treatment"means any approved on-site sewage system or component of an on-site sewage system, except a septic tank, dosing tank or pump tank, that performs additional wastewater treatment so that the effluent meets the following criteria prior to discharge of effluent into the disposal field:
CBOD5 | Shall not exceed 25 mg/L - 30-day average* |
TSS | Shall not exceed 30mg/L - 30-day average* |
Sources: |
* | EPA secondary treatment guidelines for Class I effluent. |
"System"means an individual on-site sewage disposal facility, including replacement area, designed for the collection, treatment and disposal of sewage, or sewage storage only. The individual on-site sewage disposal facility shall serve only one source on the same lot or parcel, except for a primary and secondary dwelling which may share facilities on the same lot or parcel.
"Variance"means the administrative process which allows deviation from the provision or requirement of the On-Site Sewage Manual for a specific case where strict interpretation and enforcement of a standard may result in excessive hardship or deprivation of property privileges enjoyed by other property in the vicinity, but where the protection of the public health can still be maintained.
"Vertical separation"means the depth of effective soil that exists beneath the bottom of a subsurface soil absorption system to a restrictive or limiting layer or feature such as a perched or seasonal water table, bedrock, hardpan, fractured or fissured rock, unacceptable fine textured soils, or excessively permeable material.
(Ord. 5819-B § 2, 2016; Ord. 5857-B § 1, 2017)