December 1998 Criteria ewage Works Design Purpose of Manual Acknowledgements This manual. often referred to as the "Orange This manual was developed for the Washington Book, serves as a guide for the design of State Department of Ecology with the generous sewage collection, treatment, and reclamation assistance of many government agencies, sewer systems. The goals of the manual are and water districts, consulting engineering firms, and wastewater treatment professionals To ensure that the design of sewage collection and treatment systems is Editorial Coordination board members consistent with public health and water quality objectives of the State of Louthain, Jerry(Project Manager) Washington 2. To establish a basis for the design and Cole. Mark review of plans and specifications for Foulk. Jamie sewage treatment works and sewerage Lowe. Susan systems Meriwether Cam 3. To establish the minimum requirements and Olson, Karen limiting factors utilized by the Washington Perry, Don State Department of Ecology and the Washington State Department of Health for Vivolo, Tony review of sewage treatment works and sewerage system plans and specifications Chapter coordinators, leaders, and 4. To assist the owner or their authorized contributing authors engineer in the preparation of plans, specifications, reports, and other data Chapter gl, General Engineering Requirements in, Jerry( Coordinator) 5. To guide departments in their determination Parry, Dave(Leader) of whether an approval, permit, and/or a Anderson Darrel certificate for a sewage treatment works or a sewerage system should be issued Messman Stew Moore. Bill Raysby. Lisa Strehler. Jennifer Vaughn, Johi Nitz, Bill( Coordinator) Bolinger, Al B Roger Faccone. Jim Finger. Dick Houck. Doug Kerker, Gary Morrice. rob Serres. billiv December 1998 Criteria for Sewage Works Design Purpose of Manual This manual, often referred to as the “Orange Book,” serves as a guide for the design of sewage collection, treatment, and 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 and water quality objectives of the State of Washington. 2. To establish a basis for the design and review of plans and specifications for sewage treatment works and sewerage systems. 3. To establish the minimum requirements and limiting factors utilized by the Washington State 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 their 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 a sewerage system should be issued. Acknowledgements 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) Bolinger, Al Bower, Bob Browne, Roger Faccone, Jim Finger, Dick Houck, Doug Kerker, Gary Morrice, Rob Serres, Bill