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Permit Guidance, Data, and Forms

Guidance | Tools | Permit Application Forms | Data

This page contains links to information on the Wastewater Discharge Permit program, guidance documents, permit applications, and tools used by Ecology permit writers and permittees.

Guidance

• Criteria for Sewage Works Design ("Orange Book") (Revised August 2008)
• Cruise Ship Lines Memorandum of Understanding (MOU)
• EPA Method 1669
• Guidance Criteria for Municipal Wastewater Land Treatment Systems for Public Health Protection
• Guidance for Conducting a Mixing Zone Analysis
• Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen
• Guidelines for Preparation of Engineering Reports for Industrial Wastewater Land Application Systems
• Implementation Guidance for the Ground Water Quality Standards
• Infiltration/Inflow Guidance
• Information Manual for Wastewater Treatment Plant Operators ("Red Book")
• Irrigation Management Practices to Protect Ground Water and Surface Water Quality, State of Washington State
• Laboratory Guidance and Whole Effluent Toxicity Test Review Criteria
• Municipal Land Treatment Design
• NPDES Permit Application Forms for Discharges to Surface Waters
• Permit Writer’s Manual - Revised July 2008
• Quality Assurance Project Plan (Template) for Temperature Study - Municipal
• Quality Assurance Project Plan (Template) for Temperature Study - Industrial
• State Permit Application Forms for Discharge to a POTW or to Ground
• State Requirements for Submission of Engineering Reports and Plans for Industrial Wastewater Treatment Facilities
• Technical Resources for Engineering Efficiency (TREE)
• Vehicle and Equipment Washwater Discharges
• Wastewater Discharge Permits in Washington State
• Wastewater Permits 101 - An Introduction to Wastewater Permits (Presentation slides)

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Tools

• Spreadsheets for Water Quality-Based NPDES Permit Calculations
  Spreadsheets used by Ecology permit writers for calculating water quality criteria, determining reasonable potential and developing effluent limits.

Data

• eDMR Data Entry
• The "Water Quality Life Cycle System" (WPLCS) Database
  Wastewater and Stormwater Permit data availability.

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Wastewater Permits 101 - An Introduction to Wastewater Permits (Presentation Slides)

• Stormwater and the Clean Water Act
• Overview of Laws and Regulations
• What is a Wastewater Discharge Permit?
• Types of Pollutants
• Technology-Based Limitations
• Whole Effluent Toxicity
• Water Quality Based Limitations
• Monitoring Requirements
• Post-Issuance Processes -- Enforcement and Appeals

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Guidelines for Preparation of Engineering Reports for Industrial Wastewater Land Application Systems

Guidance on the form and content of an engineering report for land application of industrial wastewater.

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Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen

Fact Sheet - Guidance on Land Treatment of Nutrients

Provides background for the "Guidance on Land Treatment of Nutrients in Wastewater, with Emphasis on Nitrogen".

Quality Assurance Project Plan (Template) for Temperature Study - Municipal

Template of a Quality Assurance Project Plan (QAPP) for use by those facilities whose NPDES permit requires them to conduct an effluent/receiving water temperature study.

Quality Assurance Project Plan (Template) for Temperature Study - Industrial

Template of a Quality Assurance Project Plan (QAPP) for use by those facilities whose NPDES permit requires them to conduct an effluent/receiving water temperature study.

Water Reclamation and Reuse Standards

Design standards for the use of adequately and reliably treated wastewater in place of drinking water for non-potable uses.

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Guidance for Conducting a Mixing Zone Analysis

Ecology’s requirements for determining dilution factors for wastewater discharges. 

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Municipal Land Treatment Design

The goal of this document is to protect the public health and prevent any unnecessary exposure to the public from land-applied wastewater. The criteria reflect a managed plan that is incorporated into engineering documents submitted for approval to Ecology and the Department of Health.

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