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Wastewater Management Publications -
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View publications by topic area
A
Additives for On-site Sewage System Rules, Chapter 246-273 WAC
Additives, List of Approved On-site Sewage Disposal System
(PDF 91 kb) - Updated September 22, 2009
Additives, Septic Tanks (Question & Answer)
(PDF 121 kb) - from The Small Flows Quarterly, Winter 2002,
reprinted with permission from the National Small Flows Clearinghouse, West Virginia University
Affidavit for Proprietary Product Registration Renewal
(Word 149 kb) - Revised October 2008
Alternating Drainfields (RS&G)
(PDF 136 kb) - Effective July 1, 2007
Annual Maintenance Log and Report Form
(PDF 136 kb) - A maintenance log form that also serves as the annual reporting form for Large On-site Sewage Systems.
Application of Treatment Standards 1 and 2
(PDF 534 kb) - March 29, 2002. Technical Issue Report DRAFT
Application to Register Proprietary On-site Distribution Products
(Word 166 kb) - Revised October 2009
Application to Register Proprietary On-site Treatment Products
(Word 170 kb) - Revised October 2009
Approved On-site Sewage Disposal System Additives, List of
(PDF 91 kb) - Updated September 22, 2009
Approved On-site Sewage Tanks, List of
(PDF 139 kb) - Updated October 26, 2009
As it Flows Newsletter - See Newsletter
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Large Large On-site Sewage System (LOSS) Annual Operating Permit Application
(Word 371 kb) for systems from 14,500 to 100,000 gallons per day - Revised November 2009
Large On-site Sewage System (LOSS) Construction Report
(PDF 48 kb) - Revised November 2006
Large On-site Sewage System (LOSS) Design Standards (RS&G)
(PDF 451 kb) - Effective December 1993; amended July 1994. For Design Flows Greater Than 3,500 Gallons Per Day.
Large On-site Sewage System (LOSS) Flowchart
(PDF 91 kb) - Revised May 2002
Large On-site Sewage System (LOSS) Glossary of Terms
(PDF 29 kb) - Revised April 22, 2003
Large On-site Sewage System (LOSS) Maintenance Log / Annual Reporting Form
(PDF 193 kb) - A maintenance log form that also serves as the annual reporting form.
Large On-site Sewage System (LOSS) Management Agreement: Municipal Management / Oversight
(PDF 224 kb) - February 5, 2003. Sample document of a management agreement for a LOSS owned by a municipality.
Large On-site Sewage System (LOSS) Management Agreement: Single Ownership
(PDF 136 kb) - February 5, 2003. Sample document of a management agreement for a LOSS with a single owner.
Large On-site Sewage System (LOSS) Management and Maintenance
(PDF 133 kb) - Revised June 2004. Guidelines that set forth the minimum information to be included in any LOSS Management Plan.
Large On-site Sewage System (LOSS) Nitrate Balance Requirements
(PDF 36 kb) - September 2009. Requirements and parameters to be used for nitrate balance in LOSS projects.
Large On-site Sewage System (LOSS) Program - Explains the application process for creating a large
on-site sewage system in Washington state, and contains links to useful and required forms or documents used in the LOSS application process.
Large On-site Sewage System (LOSS) Project Pre-Design Document
(PDF 39 kb) - Revised November 27, 2006. Assists in determining conceptual feasibility of the project and initiates the
DOH LOSS project review and approval process.
Large On-site Sewage System (LOSS) Project Review Checklist
(PDF 1 MB) - Revised June 18, 2006. Checklist for information to be documented for LOSS projects.
Large On-site Sewage System (LOSS) Regulatory Authority fact sheet
(PDF 52 kb) - Revised January 2008. LOSS regulation is covered by several agencies. This fact sheet helps unravel the mystery.
Large On-site Sewage System (LOSS) Rules, Chapter 246-272B WAC
Linear Loading Rates
(PDF 127 kb) - January 2003. Technical Issue Report DRAFT
List of Registered On-site Treatment and Distribution Products
(PDF 209 kb) - Updated October 2009
List of Approved On-site Sewage Disposal System Additives
(PDF 91 kb) - Updated September 22, 2009
List of Approved On-site Sewage Tanks
(PDF 139 kb) - Updated October 26, 2009
Local On-site Management Plan Guidance document
(PDF 1.2 MB) - June 2006
Local On-site Management Plan Guidance - web page
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O & M, The Good, the Bad, and the Ugly
(PDF 104 kb) - September 2003. Presented by Jerry Deeter (Kitsap County Environmental Health Director)
at the 2003 On-site Wastewater Treatment Short Course sponsored by University of Washington
Onsite Wastewater Treatment and Disposal Design Manual, (U.S. EPA)
(PDF 15.4 MB) - October 1980. Referenced in WAC 246-272B, which governs large on-site wastewater treatment systems.
Onsite Wastewater Treatment Systems Manual (U.S. EPA)
- February 2002. Referenced in WAC 246-272A, which governs on-site wastewater treatment systems.
On-Site Sewage - Basic Principles
(PDF 5.4 MB) - November 1992. This document was prepared prior to the adoption of the 1995 on-site sewage rules.
For items specific to Washington State rules see Chapter 246-272A WAC.
On-site Sewage Disposal System Additives, List of Approved
(PDF 91 kb) - Updated September 22, 2009
On-site Sewage System Additives Regulation, Chapter 246-273 WAC
On-site Sewage System Management Plan Guidance for Local Health
On-site Sewage System Management Plan Guidance for Local Health document
(PDF 1.2 MB) - June 2006
On-Site Sewage System Management Plan Guidance Supplemental, Marine Recovery Area (MRA) Guidance document
(PDF 607 kb) - October 2006
On-site Sewage Systems Rules, Chapter 246-272A WAC
On-site Sewage System Tanks (RS&G)
(PDF 89 kb) - Effective July 1, 2007
On-site Sewage Tanks, List of Approved
(PDF 139 kb) - Updated October 26, 2009
On-site Treatment and Distribution Products, List of Registered
(PDF 209 kb) - Updated October 2009
On-site Wastewater Advisory Committee - Summary Report
(PDF 103 kb) - September 30, 2001 by the On-site Wastewater Advisory Committee (October 2000 - June 2001)
On-site Wastewater Treatment Systems, Water Conserving
(PDF 357 kb) - Effective July 1, 2007
On-sites Online
(PDF 151 kb) - September 2006. Online educational resources about on-site sewage
(septic) systems for homeowners, property managers, local health staff, on-site designers, and O&M professionals
Organic Loading Rates
(PDF 404 kb) - April 17, 2002. Technical Issue Report DRAFT
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Sand Filter System, Understanding and Caring for Your
(Brochure) - Revised December 2004
Sand Filter Treatment Systems, Stratified (RS&G)
(PDF 143 kb) - Effective July 1, 2007
Sand Lined Trench Systems (RS&G)
(PDF 311 kb) - Effective July 2009
Sand / Media Specifications
(PDF 105 kb) - November 26, 2002. Technical Issue Report DRAFT
Septic System Additives, List of Approved
(PDF 91 kb) - Updated September 22, 2009
Septic Systems - What to Do After the Flood
- EPA web site
Septic Tank Additives (Question & Answer)
(PDF 121 kb) - from The Small Flows Quarterly, Winter 2002, reprinted withpermission from the
National Small Flows Clearinghouse, West Virginia University
Septic Tank Effluent Values
(PDF 121 kb) - February 1, 2004. Technical Issue Report DRAFT
Septic Tank, Understanding and Caring for Your
(Brochure) - Revised December 2004
Service Contracts, Homeowner's Guide to Evaluating
(PDF 177 kb) - August 2006. A guide to help homeowners decide what type maintenance contract
they might need for their septic systems. Developed and published by the
Consortium of Institutes for Decentralized Wastewater Treatment
Sewage Disposal System Additives, List of Approved On-site
(PDF 91 kb) - Updated September 22, 2009
Sewage Spill, Cleaning Up a
Sewage System Additives Regulations Chapter 246-273 WAC
Sewage System Tanks, On-site (RS&G)
(PDF 89 kb) - Effective July 1, 2007
Sewage Tanks, List of Approved On-site
(PDF 139 kb) - Updated October 26, 2009
Stratified Sand Filter Treatment Systems (RS&G)
(PDF 143 kb) - Effective July 1, 2007
Subsurface Drip Systems (RS&G)
(PDF 659 kb) - Effective July 1, 2007
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Tanks, List of Approved On-site Sewage
(PDF 139 kb) - Updated October 26, 2009
Tanks, On-site Sewage System (RS&G)
(PDF 89 kb) - Effective July 1, 2007
Technical Issue (DRAFT) Reports -
These reports summarize the available literature about on-site wastewater topics of special interest during the rule
development process of the current on-site sewage system rules and regulations (WAC 246-272A).
Please note that these reports are drafts and may undergo modification.
Application of Treatment Standards 1 and 2
(PDF 534 kb) - March 29, 2002
Disposal Component Reductions -
Special Features and Applications of Drainfield Products
(PDF 104 kb ) - April 17, 2002
Disposal Treatment Options - Highly Pretreated Effluent
(PDF 90 kb) - January 31, 2002
Failing Systems
(PDF 80 kb) - June 2002
Hydraulic Loading Rates
(PDF 504 kb) - January 1, 2002
Linear Loading Rates
(PDF 127 kb) - January 2003
Minimum Lot Size
(PDF 86 kb) - August 2002
Organic Loading Rates
(PDF 404 kb) - April 17, 2002
Residential Flow Rates
(PDF 558 kb) - May 31, 2002
Sand / Media Specifications
(PDF 105 kb) - November 26, 2002
Septic Tank Effluent Values
(PDF 121 kb) - February 1, 2004
Type 1A Soil Issues
(PDF 684 kb) - July 31, 2002
Wastewater Quality / Strength / and Content
(PDF 314 kb) - February 1, 2002
Treatment and Distribution Products, List of Registered On-site
(PDF 209 kb) - Updated October 2009
Treatment Products, Application to Register On-site
(PDF 170 KB) - Revised October 2009
Type 1A Soil Issues
(PDF 684 kb) - July 31, 2002. Technical Issue Report DRAFT
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This page contains links to documents that may be in one of the following formats:
If your computer is not able to read these formats, you may visit the DOH Viewer Page
to locate the appropriate free viewer or converter to download to your computer.
For copies of the above Wastewater Management Section publications, or to request document in other formats, please contact the
Wastewater Management Section at (360) 236-3062 or email wastewatermgmt@doh.wa.gov.
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