December 1998 Criteria for Sewage Works Design Gl-1 Agreements with Other Agencies and Applicable Permitting Requirements Gl-lI Objective The objective of this section is to provide information on the most common permitting requirements and any agreements with other federal, state, or local agencies and Indian tribes that may relate to the construction of wastewater collection, treatment, and disposal facilities. The appropriate federal, state, or local agencies that have jurisdiction should be contacted for detailed requirements on specific projects Gl-1.2 General Information on Application and Permitting activities Ecology Publication No. 90-29, Permit Handbook--Commonly Required Environmental Permits for Washington State, contains a list of, and general information about, the various permits that might be required for construction activities in Washington. The permits discussed in this publication will normally be applicable to construction of sewers, pump stations, and wastewater treatment facilities Ecology provides permit application service at the Washington State Permit Assistance Center. This center, located in Ecology's headquarters office in Lacey, is staffed by agency employees who can provide answers on permitting questions about various federal, state, and local requirements 1-1.3 Federal agencies This section provides information related to federal agencies that is applicable for planning, design, and construction of a domestic wastewater collection and treatment facility G1-1.3.1 Environmental Protection agency Responsibility for review and approval of facility plans was delegated from the Environmental Protection Agency(EPA)to Ecology in 1980. Delegation of the review and approval authority for plans and specifications occurred in 1975 Gl-1.3.2 Federal Emergency Management Agency The Federal Emergency Management Agency( FEMA)is responsible for administering the National Flood Insurance Program(NFIP). The NFIP is a voluntary program for local governments that allows property owners to purchase flood insurance if the local government adopts an ordinance containing certain minimum requirements for development in the identified one-hundred-year-frequency flood plain Local governments participating in the NFIP are also required to administer a permit program for all proposed development in the FEMA-mapped flood plains within their jurisdiction. Any entity that plans for construction of wastewater collection, treatment, or disposal facilities that are within the mapped flood plain will be required to obtain a permit prior to construction from the responsible local government subject to any conditions required under the local governments ordinance See G1-15 for additional information about the local permitting requirements
G1-4 December 1998 Criteria for Sewage Works Design G1-1 Agreements with Other Agencies and Applicable Permitting Requirements G1-1.1 Objective The objective of this section is to provide information on the most common permitting requirements and any agreements with other federal, state, or local agencies and Indian tribes that may relate to the construction of wastewater collection, treatment, and disposal facilities. The appropriate federal, state, or local agencies that have jurisdiction should be contacted for detailed requirements on specific projects. G1-1.2 General Information on Application and Permitting Activities Ecology Publication No. 90-29, “Permit Handbook—Commonly Required Environmental Permits for Washington State,” contains a list of, and general information about, the various permits that might be required for construction activities in Washington. The permits discussed in this publication will normally be applicable to construction of sewers, pump stations, and wastewater treatment facilities. Ecology provides permit application service at the Washington State Permit Assistance Center. This center, located in Ecology’s headquarters office in Lacey, is staffed by agency employees who can provide answers on permitting questions about various federal, state, and local requirements. G1-1.3 Federal Agencies This section provides information related to federal agencies that is applicable for planning, design, and construction of a domestic wastewater collection and treatment facility. G1-1.3.1 Environmental Protection Agency Responsibility for review and approval of facility plans was delegated from the Environmental Protection Agency (EPA) to Ecology in 1980. Delegation of the review and approval authority for plans and specifications occurred in 1975. G1-1.3.2 Federal Emergency Management Agency The Federal Emergency Management Agency (FEMA) is responsible for administering the National Flood Insurance Program (NFIP). The NFIP is a voluntary program for local governments that allows property owners to purchase flood insurance if the local government adopts an ordinance containing certain minimum requirements for development in the identified one-hundred-year-frequency flood plain. Local governments participating in the NFIP are also required to administer a permit program for all proposed development in the FEMA-mapped flood plains within their jurisdiction. Any entity that plans for construction of wastewater collection, treatment, or disposal facilities that are within the mapped flood plain will be required to obtain a permit prior to construction from the responsible local government subject to any conditions required under the local government’s ordinance. See G1-1.5 for additional information about the local permitting requirements
GeneralEngineering Requirements december 1998 G15 Gl-1.3.3 Corps of Engineers The US Army Corps of Engineers( Corps )is responsible for the issuance of Corps Section 404 of the Clean Water Act Permits for the Discharge of Dredge and Fill Material, and Corps Section 10 of the River and Harbor Act Permits for Work in Navigable Waters. A Corps Permit is required when locating a structure, excavating or discharging dredged or fill material in US waters,or transporting dredged material for the purpose of dumping it into ocean waters US waters include all salt water bodies wetlands. and rivers classified as navigable waters. Construction of wastewater treatment plants generally would not take place in areas subject to the Corps Permit requirements. However, construction of collection systems involving river crossings and effluent discharge lines into navigable rivers or salt water bodies will be subject to the Corps Permit requirements GI-1.3.4 Federal executive orders The President has the authority to issue Federal Executive Orders at any time that may contain certain requirements for federal agencies that are not included in current federal statutes or regulations These Executive Orders remain in effect until they are specifically repealed An example of a Federal Executive Order that may apply to construction of wastewater collection, treatment, and disposal facilities in certain locations is Executive Order 1 1298, issued in 1977. This Executive Order requires federal agencies to take action to reduce the risk of flood damages by evaluating alternatives to the construction of federal facilities or federal expenditures within an identified 100-year-frequency flood plain. If there are no practical alternatives, agencies are required to modify designs to minimize potential flood damages G1-14 State Agencies This section provides information related to state agencies that is applicable for planning, design, and construction of a domestic wastewater collection and treatment facili Gl-1.4.1 Department of Health Ecology and the Department of Health(doh) have responsibilities for water quality and public health and share responsibilities for review and approval of documents related to water quality and public health. The agencies have developed agreements to clarify these working relationships as described be A. Review of Proposals for Wastewater Facilities In 1972, the Department of Social and Health Services(now DOH)and Ecology signed a Memorandum of Agreement(MOA)concerning review and approval procedures for domestic wastewater collection, treatment, and disposal facilities. Under the MOA, Doh concluded its independent review of plans and specifications, and continued its review of preliminary plans and engineering reports with comments forwarded to Ecology
General Engineering Requirements December 1998 G1-5 G1-1.3.3 Corps of Engineers The US Army Corps of Engineers (Corps) is responsible for the issuance of Corps Section 404 of the Clean Water Act Permits for the Discharge of Dredge and Fill Material, and Corps Section 10 of the River and Harbor Act Permits for Work in Navigable Waters. A Corps Permit is required when locating a structure, excavating or discharging dredged or fill material in US waters, or transporting dredged material for the purpose of dumping it into ocean waters. US waters include all salt water bodies, wetlands, and rivers classified as navigable waters. Construction of wastewater treatment plants generally would not take place in areas subject to the Corps Permit requirements. However, construction of collection systems involving river crossings and effluent discharge lines into navigable rivers or salt water bodies will be subject to the Corps Permit requirements. G1-1.3.4 Federal Executive Orders The President has the authority to issue Federal Executive Orders at any time that may contain certain requirements for federal agencies that are not included in current federal statutes or regulations. These Executive Orders remain in effect until they are specifically repealed. An example of a Federal Executive Order that may apply to construction of wastewater collection, treatment, and disposal facilities in certain locations is Executive Order 11298, issued in 1977. This Executive Order requires federal agencies to take action to reduce the risk of flood damages by evaluating alternatives to the construction of federal facilities or federal expenditures within an identified 100-year-frequency flood plain. If there are no practical alternatives, agencies are required to modify designs to minimize potential flood damages. G1-1.4 State Agencies This section provides information related to state agencies that is applicable for planning, design, and construction of a domestic wastewater collection and treatment facility. G1-1.4.1 Department of Health Ecology and the Department of Health (DOH) have responsibilities for water quality and public health and share responsibilities for review and approval of documents related to water quality and public health. The agencies have developed agreements to clarify these working relationships as described below. A. Review of Proposals for Wastewater Facilities In 1972, the Department of Social and Health Services (now DOH) and Ecology signed a Memorandum of Agreement (MOA) concerning review and approval procedures for domestic wastewater collection, treatment, and disposal facilities. Under the MOA, DOH concluded its independent review of plans and specifications, and continued its review of preliminary plans and engineering reports with comments forwarded to Ecology
December 1998 Criteria for Sewage Works Design In reviewing plans and specifications, Ecology agreed to use the most recent editions of the following DOH design criteria for public health Public Health Concerns in the Review of plans for New sewage Works Construction Special Sewage Works Design Considerations for Protection of Waters Used for Shellfish Harvest, Water Supplies, or Other Areas of Special Health Concern Approved Cross-Connection Control Devices B. Wastewater reclamation and reuse In May 1995, DOH and Ecology signed a Memorandum of Understanding (MOU)relating to wastewater reclamation and reuse that implements Chapter 90.46 RCw, the Reclaimed Water Act. The intent of the MOU is to clarify the roles of dOh and Ecology in the development of standards for water reclamation and in the processing of permits for land application of reclaimed water. commercial and industrial reclaimed water. existing permitted land application systems, and new land treatment systems See Chapter El for details on the water reclamation and reuse program C. On-Site Sewage Systems Review and approval authority for domestic wastewater on-site sewage ystems is divided among DOH, Ecology, and local health jurisdictions based on the design flow capacities of these systems and the method of On-site sewage systems as defined and discussed in Gl-5.3 are not subject to the provisions of this manual. Review and approval authority for these /stems is described below Review and approval authority for systems with design flows at any common point of less than 3, 500 gpd is the responsibility of local health jurisdictions. Review and approval of systems with flows between 3, 500 and 14, 500 gpd at any common point, excluding mechanical treatment systems, is the responsibility of DOH. Mechanical treatment systems or lagoons followed by subsurface disposal exceeding 3, 500 gpd at any common point, and systems exceeding 14,500 gpd at any common point, are considered domestic wastewater facilities according to Wac 173-240- 020(5 )and are the responsibility of Ecology An exception to this approval authority exists for the Hanford Reservation based on a 1992 MOU between DOH and Ecology. All on-site systems on the Hanford Reservation with design flows up to 14, 500 gpd at any common point are reviewed and approved by doh D. Separation Between Water lines and sanitary Sewer lines Basic separation requirements apply to sanitary sewer lines of 24-inch- diameter or less. Larger sewer lines may create special hazards because of flow volumes and joint types. The minimum separation requirements on a general basis are 10 feet of horizontal separation and 18 inches of vertical separation
G1-6 December 1998 Criteria for Sewage Works Design In reviewing plans and specifications, Ecology agreed to use the most recent editions of the following DOH design criteria for public health concerns: • Public Health Concerns in the Review of Plans for New Sewage Works Construction. • Special Sewage Works Design Considerations for Protection of Waters Used for Shellfish Harvest, Water Supplies, or Other Areas of Special Health Concern. • Approved Cross-Connection Control Devices. B. Wastewater Reclamation and Reuse In May 1995, DOH and Ecology signed a Memorandum of Understanding (MOU) relating to wastewater reclamation and reuse that implements Chapter 90.46 RCW, the Reclaimed Water Act. The intent of the MOU is to clarify the roles of DOH and Ecology in the development of standards for water reclamation and in the processing of permits for land application of reclaimed water, commercial and industrial reclaimed water, existing permitted land application systems, and new land treatment systems. See Chapter E1 for details on the water reclamation and reuse program. C. On-Site Sewage Systems Review and approval authority for domestic wastewater on-site sewage systems is divided among DOH, Ecology, and local health jurisdictions, based on the design flow capacities of these systems and the method of treatment. On-site sewage systems as defined and discussed in G1-5.3 are not subject to the provisions of this manual. Review and approval authority for these systems is described below. Review and approval authority for systems with design flows at any common point of less than 3,500 gpd is the responsibility of local health jurisdictions. Review and approval of systems with flows between 3,500 and 14,500 gpd at any common point, excluding mechanical treatment systems, is the responsibility of DOH. Mechanical treatment systems or lagoons followed by subsurface disposal exceeding 3,500 gpd at any common point, and systems exceeding 14,500 gpd at any common point, are considered domestic wastewater facilities according to WAC 173-240- 020 (5) and are the responsibility of Ecology. An exception to this approval authority exists for the Hanford Reservation, based on a 1992 MOU between DOH and Ecology. All on-site systems on the Hanford Reservation with design flows up to 14,500 gpd at any common point are reviewed and approved by DOH. D. Separation Between Water Lines and Sanitary Sewer Lines Basic separation requirements apply to sanitary sewer lines of 24-inchdiameter or less. Larger sewer lines may create special hazards because of flow volumes and joint types. The minimum separation requirements on a general basis are 10 feet of horizontal separation and 18 inches of vertical separation
GeneralEngineering Requirements December 1998 G1-7 See Chapter CI for additional and more specific information relating to separation requirements between water mains and sanitary sewer lines GI-1.4.2 Department of Fish and wildlife Any form of work that uses, diverts, obstructs, or changes the natural flow or bed of any fresh water or salt water of the state requires a Hydraulic Project Approval(HPA)from the Department of Fish and Wildlife. Sewer lines that involve stream crossings and outfalls are typical activities related to the construction of wastewater collection, treatment, and disposal facilities that may require an HPa prior to construction G1-1. 4.3 Parks and Recreation Commission The Parks and Recreation Commission has approval authority for sewage pumpout facilities for boats at marinas. See C1-92 for specific information on these requirements GI-1.4.4 Department of Natural Resources The Department of Natural Resources(dnr) has approval authority for the se of state-owned aquatic lands( beds of salt water bodies and beds of navigable rivers). The most typical situations related to construction of wastewater collection, treatment, and disposal facilities where this approval would be required are underwater pipeline crossings and outfalls Gl-1.4.5 Community, Trade, and Economic development The Department of Community, Trade, and Economic Development(CTED) is the lead state agency involved in the development and implementation of the Growth Management Act(GMA). The GMa was established by the State Legislature in 1990 and is codified in Chapter 3670A RCW. It requires all cities and counties to plan for future growth while protecting natural resources All jurisdictions must classify and designate natural resource lands and critical areas and adopt development regulations to protect these areas. In addition, Washington's fastest growing 29 counties and the cities within those counties, as well as those counties and cities that voluntarily agree to comply, must establish Urban Growth Areas, comprehensive plans, and development regulations consistent with these plans Dates have been established by which local jurisdictions must have their development regulations and comprehensive plans adopted. If local jurisdictions fail to meet these deadlines they are considered out of Any local government not in compliance with the gma is prohibited from receiving state grant or loan funding assistance for wastewater facilities. An amendment to the gma was made during the 1997 legislative session that allows funding to be provided for wastewater facilities in noncomplying GMa jurisdictions if a project is intended to address a"public health need and/or substantial environmental degradation. See Chapter 173-95A WAC See G1-2. 3 for additional information on GMA comprehensive planning and its relationship to planning requirements that specifically relate to wastewater facilities
General Engineering Requirements December 1998 G1-7 See Chapter C1 for additional and more specific information relating to separation requirements between water mains and sanitary sewer lines. G1-1.4.2 Department of Fish and Wildlife Any form of work that uses, diverts, obstructs, or changes the natural flow or bed of any fresh water or salt water of the state requires a Hydraulic Project Approval (HPA) from the Department of Fish and Wildlife. Sewer lines that involve stream crossings and outfalls are typical activities related to the construction of wastewater collection, treatment, and disposal facilities that may require an HPA prior to construction. G1-1.4.3 Parks and Recreation Commission The Parks and Recreation Commission has approval authority for sewage pumpout facilities for boats at marinas. See C1-9.2 for specific information on these requirements. G1-1.4.4 Department of Natural Resources The Department of Natural Resources (DNR) has approval authority for the use of state-owned aquatic lands (beds of salt water bodies and beds of navigable rivers). The most typical situations related to construction of wastewater collection, treatment, and disposal facilities where this approval would be required are underwater pipeline crossings and outfalls. G1-1.4.5 Community, Trade, and Economic Development The Department of Community, Trade, and Economic Development (CTED) is the lead state agency involved in the development and implementation of the Growth Management Act (GMA). The GMA was established by the State Legislature in 1990 and is codified in Chapter 36.70A RCW. It requires all cities and counties to plan for future growth while protecting natural resources. All jurisdictions must classify and designate natural resource lands and critical areas and adopt development regulations to protect these areas. In addition, Washington’s fastest growing 29 counties and the cities within those counties, as well as those counties and cities that voluntarily agree to comply, must establish Urban Growth Areas, comprehensive plans, and development regulations consistent with these plans. Dates have been established by which local jurisdictions must have their development regulations and comprehensive plans adopted. If local jurisdictions fail to meet these deadlines they are considered out of compliance. Any local government not in compliance with the GMA is prohibited from receiving state grant or loan funding assistance for wastewater facilities. An amendment to the GMA was made during the 1997 legislative session that allows funding to be provided for wastewater facilities in noncomplying GMA jurisdictions if a project is intended to address a “public health need” and/or “substantial environmental degradation.” See Chapter 173-95A WAC. See G1-2.3 for additional information on GMA comprehensive planning and its relationship to planning requirements that specifically relate to wastewater facilities
December 1998 Criteria for Sewage Works Design Gl-1.4.6 Department of ecology Some of the more commonly required permits or approvals by Ecology that relate to construction of sewers, pump stations, or wastewater treatment facilities are described below National Pollutant Discharge Elimination System(NPDES) Permit The discharge of pollutants into the state s surface waters is regulated through NPDES permits, under Chapter 173-220 WAC Ecology issues NPDES permits under authority delegated by EPa to Ecology in 1973 Permits typically place limits on the quantity and concentration of pollutants that may be discharged, and in most cases have a five-year life NPDES permits are required for wastewater discharges to surface waters from a municipal sewage treatment plant B. State Waste Discharge permit State Waste Discharge(SWD) permits are issued according to Chapter 173-216 WAC and regulate the discharge or disposal of Industrial commercial, or municipal waste material into the states ground waters The discharge of industrial or commercial wastes into municipal Permits place limits on the quantity and concentrations of contaminants that may Instances where a SWd permit would be required for wastewater treatment plants are where the effluent is discharged into ground water or the effluent from the treatment plant is reused C. Water Quality Certification(401 Certification) A 401 Certification is required for a federal license or permit to conduct any activity that may result in any discharge into surface waters. The federal agency is provided a certification from Ecology that the discharge complies with the discharge requirements of federal law and the aquatic protection requirements of state law. Certifications are provided in the same time frame and follow the same process as Corps Permits discussed inG1-1.3.3 wastewater facilities include underwater pipeline crossings and outfall Activities typically requiring a 401 Certification related to construction D. Stormwater Discharges from Construction Sites A NPDES and State Waste Discharge Baseline General Permit for Stormwater Discharges is required for construction sites with an area of disturbed soil of five or more acres. Application for the permit is made by completing a form called a Notice of Intent for Construction Activity NOD). Before the permit can be issued for construction sites, the applicant must have prepared a Stormwater Pollution Prevention Plan and verify that the State Environmental Policy Act(SEPA)and public notice equirements have been met
G1-8 December 1998 Criteria for Sewage Works Design G1-1.4.6 Department of Ecology Some of the more commonly required permits or approvals by Ecology that relate to construction of sewers, pump stations, or wastewater treatment facilities are described below. A. National Pollutant Discharge Elimination System (NPDES) Permit The discharge of pollutants into the state’s surface waters is regulated through NPDES permits, under Chapter 173-220 WAC. Ecology issues NPDES permits under authority delegated by EPA to Ecology in 1973. Permits typically place limits on the quantity and concentration of pollutants that may be discharged, and in most cases have a five-year life span. NPDES permits are required for wastewater discharges to surface waters from a municipal sewage treatment plant. B. State Waste Discharge Permit State Waste Discharge (SWD) permits are issued according to Chapter 173-216 WAC and regulate the discharge or disposal of: • Industrial, commercial, or municipal waste material into the state’s ground waters. • The discharge of industrial or commercial wastes into municipal sanitary sewer systems. Permits place limits on the quantity and concentrations of contaminants that may be discharged. Instances where a SWD permit would be required for wastewater treatment plants are where the effluent is discharged into ground water or the effluent from the treatment plant is reused. C. Water Quality Certification (401 Certification) A 401 Certification is required for a federal license or permit to conduct any activity that may result in any discharge into surface waters. The federal agency is provided a certification from Ecology that the discharge complies with the discharge requirements of federal law and the aquatic protection requirements of state law. Certifications are provided in the same time frame and follow the same process as Corps Permits discussed in G1-1.3.3. Activities typically requiring a 401 Certification related to construction or wastewater facilities include underwater pipeline crossings and outfalls. D. Stormwater Discharges from Construction Sites A NPDES and State Waste Discharge Baseline General Permit for Stormwater Discharges is required for construction sites with an area of disturbed soil of five or more acres. Application for the permit is made by completing a form called a Notice of Intent for Construction Activity (NOI). Before the permit can be issued for construction sites, the applicant must have prepared a Stormwater Pollution Prevention Plan and verify that the State Environmental Policy Act (SEPA) and public notice requirements have been met