Washington Revised Code Title 70A. Environmental Health and Safety § 70A.226.005. Findings--Municipal sewage sludge as a beneficial commodity

(a) Municipal sewage sludge is an unavoidable by-product of the wastewater treatment process;

(b) Population increases and technological improvements in wastewater treatment processes will double the amount of sludge generated within the next ten years;

(c) Sludge management is often a financial burden to municipalities and to ratepayers;

(d) Properly managed municipal sewage sludge is a valuable commodity and can be beneficially used in agriculture, silviculture, and in landscapes as a soil conditioner; and

(e) Municipal sewage sludge can contain metals and microorganisms that, under certain circumstances, may pose a risk to public health.