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In addition to the definitions found in WAC 246-272A-0010 and in any supplemental on-site sewage disposal regulations of SHD, the following shall apply:

“Certified company” means a business entity which employs individuals possessing an installer certification.

Design. An OSS design shall consist of a complete scale drawing of the site plan showing the proposed sewage disposal system installation, including all relevant values and details, and using the format and application forms provided by SHD. The presentation of requisite soil test holes, information and markers at the site of the intended development is considered to be part of the design.

“Installer” means an individual who personally holds an installer certificate of competency and performs the actual work of installing, repairing, and renovating on-site sewage treatment and disposal systems. A homeowner may act in the capacity of the installer and install his/her own system in accordance with the supplemental procedures.

“Installer certificate of competency” means a document issued by SHD indicating an individual’s satisfactory completion of the application and testing procedures relative to OSS.

“Permit” means written approval from SHD to construct or repair an OSS in accordance with an approved design and use.

“Violation” means the construction or omission of any significant element of an on-site sewage disposal system which, if left uncorrected, may result in the malfunction of the wastewater treatment or disposal system, or would allow the use of the system to circumvent required treatment and disposal of wastewater. Also, OSS construction work that is performed without a permit or approval from SHD. This includes but is not limited to: a drainfield installation in violation of the applicable rules and regulations; an installation not fitting the size, shape or topography of the site or its setbacks; use of inadequate construction materials, devices or methods; a sewage disposal system construction flaw that could allow the contamination of groundwater; a sewage disposal system that is installed at an unsafe distance from a water supply or surface water; OSS construction that could malfunction or allow sewage to discharge to the surface.

“Violation notice” means written determination that the named installer has committed a violation of the rules or regulations. [Res. 12-15. Res. 08-10. Revised and reapproved by DOH 12/15/94. Res. 93-32, Eff. 11/09/93. Res. 89-61. Prior code § 8.3(II)].