Publications Home || Browse by topic || Browse by program || Ecology website

Publication Summary

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


Snohomish Wastewater Treatment Plant Class II Inspection - September 20-21, 1992

Publication number Date Published
93-e59March 1993
VIEW NOW Snohomish Wastewater Treatment Plant Class II Inspection - September 20-21, 1992 (Number of pages: 47) (Publication Size: 2MB)

Trouble viewing? Try these free options.
Author(s) Stasch, P.
Description A Class II Inspection was conducted in September 1992 at the city of Snohomish Wastewater Treatment Plant in Snohomish County. The Snohomish facility is a facultative lagoon system which discharges into the Snohomish River. The inspection data found the Snohomish facility was producing a fairly good effluent quality. Effluent concentrations were within the NPDES permit limitations with the exception of the monthly BOD5 average concentration. Flow was well within the design criteria specified in the permit, but BOD5 was approaching criteria.
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.

ADA Accessibility
The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188.
Visit Ecology’s website for more information.
Contact EAP Publications Coordinator at 564-669-3028 or
Keywords silver, priority pollutant, wastewater treatment plant, bioassay, county, Inspection, Snohomish River, toxicity, metals, wastewater, flow, treatment, river, water, toxic, quality, waste, NPDES, effluent, copper
WATERSHED Water Resource Inventory Area 07 Snohomish