As used in this chapter, the terms defined in this section shall have the meanings indicated unless the context clearly indicates otherwise.

(1) "Nonwater-carried sewage disposal devices" means any device that stores and treats nonwater-carried human urine and feces.

(2) "Alternative methods of effluent disposal" means systems approved by the department of health, including at least, mound systems, alternating drainfields, anaerobic filters, evapotranspiration systems, and aerobic systems.

(3) "Failure" means: (a) Effluent has been discharged on the surface of the ground prior to approved treatment; or (b) effluent has percolated to the surface of the ground; or (c) effluent has contaminated or threatens to contaminate a groundwater supply.

(4) "Additive" means any commercial product intended to affect the performance or aesthetics of an on-site sewage disposal system.

(5) "Department" means the department of health.

(6) "On-site sewage disposal system" means any system of piping, treatment devices, or other facilities that convey, store, treat, or dispose of sewage on the property where it originates or on nearby property under the control of the user where the system is not connected to a public sewer system. For purposes of this chapter, an on-site sewage disposal system does not include indoor plumbing and associated fixtures.

(7) "Chemical additive" means those additives containing acids, bases, or other chemicals deemed unsafe by the department for use in an on-site sewage disposal system.

(8) "Additive manufacturer" means any person who manufactures, formulates, blends, packages, or repackages an additive product for sale, use, or distribution within the state.

Finding—Purpose—1994 c 281: "The legislature finds that chemical additives do, and that other types of additives may, contribute to septic system failure and groundwater contamination. In order to determine which ingredients of nonchemically based additive products have adverse effects on public health or the environment, it is necessary to submit such products to a review procedure.

The purpose of this act is: (1) To establish a timely and orderly procedure for review and approval of on-site sewage disposal system additives; (2) to prohibit the use, sale, or distribution of additives having an adverse effect on public health or the water quality of the state; (3) to require the disclosure of the contents of additives that are advertised, sold, or distributed in the state; and (4) to provide for consumer protection." [ 1994 c 281 s 1.]

Effective date—1994 c 281: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and shall take effect immediately [April 1, 1994]." [ 1994 c 281 s 7.]

Intent—1993 c 321: See note following RCW 70A.105.060.