The definitions in this section apply throughout this chapter unless the context clearly requires otherwise.

(1) "Clean water act" means 33 U.S.C. Sec. 1251 through 1388, as it existed on June 9, 2016.

(2) "Debt service" means the total of all principal, interest, and administration charges associated with a water pollution control revolving fund loan that must be repaid to the department by the public body.

(3) "Department" means the department of ecology.

(4) "Eligible cost" means the cost of that portion of a water pollution control facility or activity that can be financed under this chapter.

(5) "Federal capitalization grants" means grants from the federal government provided by the clean water act.

(6) "Fund" means the water pollution control revolving fund in the custody of the state treasurer.

(7) "Nonpoint source water pollution" means pollution that enters any waters of the state from any dispersed water-based or land-use activities, including, but not limited to, atmospheric deposition, surface water runoff from agricultural lands, urban areas, and forestlands, subsurface or underground sources, and discharges from boats or other marine vessels.

(8) "Public body" means the state of Washington or any agency, county, city or town, other political subdivision, municipal corporation or quasi-municipal corporation, and those Indian tribes now or hereafter recognized as such by the federal government.

(9) "Water pollution" means such contamination, or other alteration of the physical, chemical, or biological properties of any waters of the state, including change in temperature, taste, color, turbidity, or odor of the waters, or such discharge of any liquid, gaseous, solid, radioactive, or other substance into any waters of the state as will or is likely to create a nuisance or render such waters harmful, detrimental, or injurious to the public health, safety, or welfare, or to domestic, commercial, industrial, agricultural, recreational, or other legitimate beneficial uses, or to livestock, wild animals, birds, fish, or other aquatic life.

(10) "Water pollution control activities" means actions taken by a public body for the following purposes: (a) To control nonpoint sources of water pollution; (b) to develop and implement a comprehensive management plan for estuaries; and (c) to maintain or improve water quality through the use of water pollution control facilities or other means.

(11) "Water pollution control facility" or "water pollution control facilities" means any facilities or systems owned or operated by a public body for the control, collection, storage, treatment, disposal, or recycling of wastewater, including but not limited to sanitary sewage, stormwater, combined sewer overflows, residential, commercial, industrial, and agricultural wastes, which are causing water quality degradation due to concentrations of conventional, nonconventional, or toxic pollutants. Water pollution control facilities include all equipment, utilities, structures, real property, and interests in and improvements on real property necessary for or incidental to such purpose. Water pollution control facilities also include such facilities, equipment, and collection systems as are necessary to protect federally designated sole source aquifers.

Reviser's note: The definitions in this section have been alphabetized pursuant to RCW 1.08.015(2)(k).