Summary Page for 1980 EPA Design Manual Onsite Wastewater Treatment Systems

Please Note: The Department of Health last revised its rules relating to on-site wastewater treatment systems in 1995. Those rules included references to documents in existence at that time, such as the 1980 EPA Design Manual: Onsite Wastewater Treatment. As the 1995 Washington on-site wastewater rules are still in effect, and available on the Web, we believe it is helpful to make the documents that are referenced in the rules available on the Web. Realize that the contact information contained in this official document may have changed over time. For the most current contact information, please visit the Wastewater Management Program Web pages.

This EPA Design Manual, Onsite Wastewater Treatment Systems, October 1980, is available in an Adobe "PDF" format to view on the Web or to download. The file is quite large, 414 pages and 15.4 MB, and may take a while to open and/or to download.

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Click here to look at the Table of Contents before opening the whole document.

Caution: Document may be slow to load. 15.4 MB and 414 pages.

Click here to open the whole EPA Onsite Design Manual 1980.

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Wastewater Management Program
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Last Update : 09/07/2006 06:20 PM