Publications Home

Publication Summary

Our Ecology website has changed, which can cause broken links.
To report these, please contact us with the publication and broken link.


Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen

Publication number Date Published
04-10-081November 2004
VIEW NOW: Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen (Number of pages: 5) (Publication Size: 46KB)

Trouble viewing? Try these free options.
Author(s) Water Quality Program Hydrogeology Workgroup
Description This document provides guidance on land treatment of nutrients in wastewater, with emphasis on nitrogen. In Washington State, wastewater from some municipalities and industries is applied to cropland to obtain biological treatment. Ecology’s Water Quality Program permits the land treatment of wastewater provided all known, available, and reasonable methods of prevention, control, and treatment (AKART) is described and approved in an engineering report. For nutrients, a viable crop must be established and maintained to achieve the level of treatment necessary to protect ground water. A well-managed land treatment system limits wastewater application to rates that do not exceed the treatment capacity of the crop or soil, and minimizes adverse impacts to ground water quality by all contaminants.
REQUEST A COPY The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

Accessibility Options
Persons with hearing loss can call 711 for Washington Relay Service
Persons with a speech disability can call 877-833-6341
Contact Water Quality Program at 360-407-6600
Keywords guidance, nitrogen, treatment, quality, nutrient
WEB PAGE Permit Guidance and Data