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Criteria for Sewage Works Design

General Collection Treatment Effluent Solids Criteria for Sewage Works Design Water Quality Program August 2008 Publication # 98-37 WQ Please recycle Criteria for Sewage Works Design Water Quality Program Revised August 2008 Publication No. 98-37 WQ State of Washington Department of Ecology Olympia, Washington 98504 ii Criteria for Sewage Works Design Contact Information You can print or download this document from our Web site at: For more information contact: Department of Ecology Water Quality Program Box 47600] Olympia, WA 98504-7600 Telephone: 360-407-6401 (Refer to Publication No.)

Hammond Collier Wade-Livingston Associates HDR Engineering, Inc. Island County KCM International Kennedy/Jenks Consultants King County Wastewater Treatment Division Kitsap County Lakehaven Utility District Montgomery Watson Northshore Utility District Oregon DEQ Parametrix, Inc. Phillips Driscopipe Pierce County Reid Middleton

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Transcription of Criteria for Sewage Works Design

1 General Collection Treatment Effluent Solids Criteria for Sewage Works Design Water Quality Program August 2008 Publication # 98-37 WQ Please recycle Criteria for Sewage Works Design Water Quality Program Revised August 2008 Publication No. 98-37 WQ State of Washington Department of Ecology Olympia, Washington 98504 ii Criteria for Sewage Works Design Contact Information You can print or download this document from our Web site at: For more information contact: Department of Ecology Water Quality Program Box 47600] Olympia, WA 98504-7600 Telephone: 360-407-6401 (Refer to Publication No.)

2 98-37 WQ) If you need this publication in an alternate format, please call the Water Quality Program at 360-407-6401. Persons with hearing loss can call 711 for Washington Relay Service. Persons with a speech disability can call 877-833-6341. Publication History Originally published 1978 (Pub. No. 78-5) Revised October 1985 Reprinted 1992 Revised December 1998 Revised October 2006 Revised November 2007 Revised August 2008 Dedicated in fond memory to James D. Krull June 3, 1941 to October 15, 1997 for over two decades of service and friendship to the Department of Ecology Water Quality Program The Department of Ecology is an equal opportunity agency and does not discriminate on the basis of race, creed, color, disability, age, religion, national origin, sex, marital status, disabled veteran's status, Vietnam era veteran s status, or sexual orientation.

3 Criteria for Sewage Works Design iii Contents Contact Information .. iiPublication History .. ii Contents .. iiiPurpose of Manual .. ivAcknowledgements (1998) .. vHow to Use This Manual .. ixAbbreviations and Acronyms .. x General Chapter G1 General Engineering Requirements Chapter G2 General Considerations Chapter G3 Special Considerations for Small Community Systems Collection Chapter C1 Sewers Chapter C2 Sewage Pump Stations Chapter C3 Combined Sewer Overflows Treatment Chapter T1 Preliminary Treatment/ Septage and Other Liquid Hauled Wastes Chapter T2 Primary Treatment Chapter T3 Biological Treatment Chapter T4 Chemical/Physical Treatment Chapter T5 Disinfection Chapter T6 Membrane Bioreactor Treatment Systems Effluent Chapter E1 Water Reclamation and Reuse Chapter E2 Effluent Disposal to

4 Surface Water Chapter E3 Effluent Disposal to Ground Water Solids Chapter S Residual Solids Management iv Criteria for Sewage Works Design Purpose of Manual This manual, formally called the Criteria for Sewage Works Design (CSWD) and often referred to as the Orange Book, serves as a guide for the Design of Sewage collection, treatment, and water reclamation systems. The goals of the manual are: 1. To ensure that the Design of Sewage collection and treatment systems is consistent with public health, water quality, and biosolids management objectives of Washington State. 2. To establish a basis for the Design and review of plans and specifications for Sewage treatment Works and sewerage systems.

5 3. To establish the minimum requirements and limiting factors utilized by the Washington Department of Ecology and the Washington State Department of Health for review of Sewage treatment Works and sewerage system plans and specifications. 4. To assist the owner or the authorized engineer in the preparation of plans, specifications, reports, and other data. 5. To guide departments in their determination of whether an approval, permit, and/or a certificate for a Sewage treatment Works or sewerage system should be issued. The CSWD provides guidance, prepared by Ecology, for the benefit of agency staff and the designers, owners, and operators of Sewage treatment Works and sewerage systems.

6 The intent of the CSWD manual is to address requirements that will lead to approvable plans and specifications for Sewage treatment Works and sewerage systems. Although this manual is not regulation, state regulation (WAC 173-240-040) requires reasonable consistency with the CSWD requirements. Ecology intends to revise sections of this manual as updated information becomes available. Ecology will make the revisions available electronically. A list of the revisions with dates is provided below. Ecology may approve other designs as long as they are justified as standard engineering practices. Additional Design references may include, but are not limited to, the manuals of engineering practice from the US Environmental Protection Agency, the Water Environment Association, the American Society of Civil Engineers, Recommended Standards for Wastewater Facilities (the 2004 Ten State Standards, ) and other recognized professional organizations.

7 Ecology is willing to discuss the alternative methods of complying with applicable statutes, regulations, or requirements. Ecology also strongly encourages discussion and subsequent approval of proposed alternative methods prior to implementing them to avoid unnecessary or wasteful expenditures of resources. List of recent revisions Ecology has made the following revisions to the 1998 publication: 2006 Updates and Revisions - Purpose of Manual (Introduction) - State Agencies ( ) - Environmental Review; SEPA, NEPA, SERP ( ) - Operation and Maintenance Manual ( ) - Design loading, treatment plants ( ) - Ponds and Aerated Lagoons ( ) - Sewer System Rehabilitation/Replacement Techniques (C1-8) - Special Requirements (C1-9) - MBR (New section in Treatment Chapter) - Residual Solids Management (Chapter S) - Treatment Technologies (E1-4) - Distribution and Storage (E1-5) Ecology appreciates contributions and reviews from the following firms and local government agencies: King county Enviroquip.

8 Kennedy Jenks Zenon Lakehaven Utility District Gray & Osborne Brown & Caldwell HDR Criteria for Sewage Works Design v 2007 Updates and Revisions - General Engineering Requirements (Table G1-2 Explanation of Engineering Report Requirements) - General Engineering Requirements (Chapter G1 Section Facility Rerating Procedures - Sewers (Chapter C1-7 Assessment of Structural Conditions and Infiltrations/Inflow - Biological Treatment (Chapter T3 Section Batch Treatment [Sequencing Batch Reactor]) - Disinfection (Chapter T5 Section T5-2 Ultraviolet Light [Sub-sections , , , , and ]) 2008 Updates and Revisions - General Considerations (Chapter G2 Sections 2 and 5) - Sewers (Chapter C1 Sections 5 and 10) - Sewage Pump Stations (Chapter C2 Section 3) - Preliminary Treatment/Septage and Other Liquid Hauled Wastes (Chapter T1 Section 1) - Water Reclamation and Reuse (Chapter E1 Added Section ) - Residual Solids Management (Chapter S Sections 1 and 2) vi Criteria for Sewage Works Design Acknowledgements (1998)))

9 This manual was developed for the Washington State Department of Ecology with the generous assistance of many government agencies, sewer and water districts, consulting engineering firms, and wastewater treatment professionals. Editorial/Coordination Board members Louthain, Jerry (Project Manager) Berschauer, Doug Cole, Mark Foulk, Jamie Lowe, Susan Meriwether, Cam Nitz, Bill Olson, Karen Perry, Don Skillings, Tom Vivolo, Tony Chapter coordinators, leaders, and contributing authors Chapter G1, General Engineering Requirements Louthain, Jerry (Coordinator) Parry, Dave (Leader) Anderson, Darrel Cole, Mark Messman, Stew Moore, Bill Raysby, Lisa Strehler, Jennifer Vaughn, John Chapter G2, General Considerations Nitz, Bill (Coordinator)

10 Bolinger, Al Bower, Bob Browne, Roger Faccone, Jim Finger, Dick Houck, Doug Kerker, Gary Morrice, Rob Serres, Bill Chapter G3, Special Considerations for Small Community Systems Meriwether, Cam (Coordinator) Milton, Jim (Leader) Alexander, Ken Arts, Chris Bergstrom, Eric Berschauer, Doug Johnstone, Charles Nichols, Don Nunnallee, David Riegert, Larry Riley, Dick Sherwood, Kim Skillings, Tom Tom, Andy Chapter C1, Sewers Chapter C2, Sewage Pump Stations Vivolo, Tony (Coordinator) Thetford, Tom (Leader) Bickel, Scott Brown, Lisa Browne, Roger Cardwell, Bruce Carlsen, Jim Chambers, Craig Davison, Eric Eliasson, John Gagnon, Richard Hammond, Bob Holland, Jon Houck, Doug Knott, Graham Koch, John Nickel, Ray Ollivant, Mike Ordonez, Robin Postma, Loren Rawls, Bruce Slifer, Scott Stiltz, Mark Sylvester, Bob VanDerAa, Bud Vigilia, Rudy Criteria for Sewage Works Design vii Chapter C3, Combined Sewer Overflows Nitz, Bill (Coordinator) Fricke, Laura (Leader) Labib, Foroozan (Leader)