Guidance, Policies and Reports

All publications are in Adobe PDF, unless otherwise noted.

[Air Quality]  [Land Quality]  [Water Quality]



Air Quality

General

• 2010 Oregon Annual Ambient Air Monitoring Network Plan
• Air Monitoring Reports
• Air Quality Annual Report and Data Summaries
• Asbestos System Projects Report
• Ash Grove Mercury Reduction Advisory Committee's Report, December 21, 2007
• Columbia River Gorge Air Study and Strategy
• Governors Vehicle Emissions Workgroup Report, November 2005
• Oregon Dairy Air Quality Task Force
• Oregon Low Carbon Fuel Standards: Advisory Committee Process and Program Design
• Source Testing Guidance and Documents

Air Toxics

• Air Toxics Advisory Committee Final Report
• Portland Air Toxics Solutions Report and Recommendations 2012
• Portland Air Toxics 2005 Modeling Improvements Documentation
• Portland Air Toxics Solutions 2005 Emissions Inventory Summary for Area Sources
• Portland Air Toxics Solutions 2005 Emissions Inventory Summary for Nonroad and On-road
• Portland Air Toxics Solutions 2005 Emissions Inventory Summary for Permitted Industrial Sources

Land Quality

[Cleanup]  [Composting]  [Hazardous Waste]  [HazWaste.net]
[Household Hazardous Waste]  [Public Review]  [Solid Waste]  [Tanks]

General

• Mercury Reduction Strategy
• Oregon Integrated Contingency Plan
  • Template DOCX
• Protect Yourself From Mercury!

Electronics

• Don't Toss That TV! What to Do With Your Old TV Set
• Oregon E-Cycles Biennial Report
  • Executive Summary
• Questions and Answers: Disposal Ban for Computers, Monitors and Televisions

Environmental Cleanup

Reports and Other Documents

General Publications

• Annual Environmental Cleanup Report
• Oil Spill Planning Annual Report
• Invoicing for Cleanup Program Costs
• Development of Oregon Background Metals Concentrations in Soil

Guidance Documents and Policy Statements

Guidance documents provide technical information to assist with specific aspects of stages of environmental cleanup activities. Policy statements clarify provisions of Oregon's environmental cleanup statute and rules. These documents are advisory only and are intended to assist DEQ staff, responsible parties, consultants and others implementing cleanup projects.

Site Investigation

• Cleanup Program Quality Assurance Policy
• Groundwater Monitoring Well Drilling, Construction and Decommissioning
• Guidance for Assessing and Remediating Vapor Intrusion in Buildings
• Guidance for Conducting Beneficial Water Use Determinations at Cleanup Sites
• Guidance for Conducting Feasibility Studies
• Guidance for Evaluating Residual Pesticides on Lands Formerly Used for Agricultural Production
• Guidance for Evaluating the Stormwater Pathway at Upland Sites HTM
• Guidance for Identification of Hot Spots
• Guidance for Protecting Cultural Resources during Cleanup Work
• Listing and Delisting Criteria
• Quality Assurance Project Plan for EPA PA/SI Investigations
• Quality Assurance Project Plan for Brownfield Investigations
• Quality Assurance Project Plan for Underground Storage Tanks
• Risk-Based Decision Making for the Remediation of Petroleum-Contaminated Sites HTM

Risk Assessment

• Guidance for Assessing Bioaccumulative Chemicals of Concern in Sediment
• Guidance for Conducting Human Health Risk Assessments (Deterministic and Probabilistic) HTM
• Guidance for Ecological Risk Assessment HTM
• Toxicity Equivalency Factors Policy Statement

Cleanup Remedies

• Alternative Water Supply Policy Statement
• Description of "Permit Waiver" Provisions
• Dry Cleaner Application Guidance
• Generic Remedies for Soils Contaminated with PCBs HTM
• Guidance for Consideration of Land Use in Environmental Remedial Actions
• Guidance for Managing Hazardous Substance Air Discharges From Remedial Systems
• Guidance for Use of Institutional Controls
• Risk-Based Decision Making for the Remediation of Petroleum-Contaminated Sites HTM

Liability and Defenses to Liability

• Off-Site Contaminant Migration Policy
• Prospective Purchaser Program Guidance

Public Review Draft Guidance and Policy Documents

Nothing to review at this time.

Document Templates

Document templates outline appropriate content/format for specific document types such as preliminary assessments and feasibility studies.

• Expanded Preliminary Assessment Sampling Plan HTM
• Expanded Preliminary Assessment Report HTM
• Independent Cleanup Pathway Final Report Outline DOC
• Recommended format and content for a Remedial Investigation and Feasibility Study Scope of Work
  When a party conducts a Remedial Investigation and Feasibility Study under a Consent Order with the Department of Environmental Quality, the Consent Order will include an RI/FS Scope of Work. The SOW describes the elements and work that must be included in the RI/FS. The Consent Order and the SOW are tailored to the specific site for which they are to be used, through discussions with the performing party. However, there are two "boilerplate" versions (short and long) that DEQ staff may use as a starting point for developing a site-specific document. DEQ staff determines which boilerplate SOW is appropriate for use at a particular site based on the complexity or history of the site or other circumstances.

Note: The site-specific document as finally developed may be different than either of the "boilerplate" versions. Also, the requirements for an RI/FS are specified in DEQ's rules and guidance and will apply to the RI/FS regardless of which version of the SOW is used.

• Boilerplate Short Form
• Boilerplate Long Form

• Screening and Preliminary Assessment HTM

Hazardous Waste

Hazardous Waste Policies and Other Guidance Documents

Policies

Hazardous waste policies and internal management directives are intended as guidance for Oregon DEQ employees. The policies do not constitute rulemaking by the Oregon Environmental Quality Commission and may not be interpreted to create a right or benefit, substantive or procedural, enforceable by law or in equity, by any person. Oregon DEQ may take action at variance with these policy statements.

Title	Policy Number	Date
Aerosol Spray Can Management (Supersedes Policy 1994-PO-001)	2005-PO-001	6/24/05
Guidance on Performing a Hazardous Waste Determination on an Oily Waste	2004-PO-001	6/17/04
Counting Recycled Hazardous Waste	2001-PO-006	6/19/01
Internal Management Directive: HW Management, Criteria for Applying Factors to Determine Significant Non-Complier Status (Supersedes Policy Number 2000-PO-002)	IMD: 140.001.2012	12/01/2011
Used Oil Transfer Facility Equivalent Secondary Containment Policy	2001-PO-003	2/8/01
Used Oil Space Heater Policy Document	2001-PO-002	2/8/01
Applicability of the RCRA Household Waste Exclusion to Wastes and Debris Containing Lead-Based Paint (Revised -- Supersedes Policy Number 1996-PO-001)	2001-PO-001	2/8/01
Hazardous Waste Fees for Remediation Wastes -- Interim Policy (Supersedes Policies 2000-PO-001, 1999-PO-003, and 1997-PO-001)	2000-PO-003	11/2/00
Spent Photo Processing Wastes that are Recycled	1999-LM-001	5/14/99
Aggregation of Conditionally Exempt Generator Waste	1999-PO-002	4/30/99
Management of Diesel Fuel and Asphalt Tack/Emulsion	1999-PO-001	4/30/99
Used Antifreeze Management	1997-PO-004	11/21/97
Requirement for Owners or Operators of Wastewater Treatment Units	1997-PO-003	11/21/97
Management of Building Demolition Waste	1997-PO-002A	11/21/97
Petroleum Contaminated Waste Waters	1996-PO-002	11/4/96
Contaminated Rags Destined for Laundering	1996-LM-001	5/3/96
CEGs Treating Hazardous Waste On-Site	1995-PO-001	12/20/95

Hazardous Waste Guides and Other Documents

• Oregon Integrated Contingency Plan
  • Template DOCX
• Radiator Shop Handbook
• Small Quantity Hazardous Waste Generator Handbook
• Technical Assistance Brochure

Hazardous Waste Reporting (HazWaste.net)

• Annual Hazardous Waste Report Source Code Group
• Frequently Asked Hazardous Waste Reporting Questions
• General Instructions for DEQ's Hazardous Waste Reporting System
• Generation and Management
  • Generation and Management Form File Formats
  • Instructions for filling out the Waste Generation and Management Form
• Hazardous Waste Annual Reporting Form Codes
• Hazardous Waste Definitions
• Hazardous Waste Management Codes
• HazWaste.net Training Manual
• Oregon Hazardous Waste Codes

Toxics Use/Waste Reduction Assistance Program

General Toxics Use/Waste Reduction Documents

• Toxics Use and Hazardous Waste Reduction Act Questions and Answers
• Comparison of Old and New Toxics Use and Hazardous Waste Reduction Program

Toxics Use and Hazardous Waste Reduction Plans

• Toxics Use Reduction and Hazardous Waste Reduction Plan Template DOC
• Notice of Plan Completion
• Top 10 Elements in an Environmental Management System
• Notice of EMS Completion

Toxics Use Reduction and Hazardous Waste Implementation Summaries

• Toxics Use and Hazardous Waste Reduction Reporting: Implementation Summary Questions and Answers
• TUHWR Reporting: Implementation Summary Examples
• Implementation Summary Guide Sheet

Toxics Use/Waste Reduction Reports

• Oregon Toxic Use and Hazardous Waste Reduction Law Implementation: 2002 Status Report
• Evaluation of the Toxic Use and Hazardous Waste Reduction Act (March 2004)
• Measuring TUWRAP's Influence: Final Report  (May 2004)

Solid Waste

Reports and Guidance Documents

General

• Coloring Books
  • Reduce
  • Reuse
  • Recycle
• Conversion Technology Rulemaking HTM
• Governor's Advisory Group on Global Warming HTM
• Reports to the Legislature HTM
• Rethinking Recycling: An Oregon Waste Reduction Curriculum HTM

Compost

• A User's Guide to Compost (1.86MB)
• Basic Composting Brochure (English)
• Basic Composting Brochure (Spanish)
• Commercial Food Waste Composting Food Study Project Report HTM
• Clopyralid Study: Laboratory Results Phase I, Phase II and Follow-up Testing
• Clopyralid Study Final Report 1MB
• DOW Sensitive and Non-sensitive Plant List
• Notice of Clopyralid Restriction Postcard
• Pesticide Products Registered for Lawn Care in 2002
  Oregon Department of Agriculture
• Rulemaking (Compost Facility) Information HTM
• Survey of Home Compost Bins Recipients in LaGrande HTM

Disposal

• 2009/10 Waste Composition Study HTM
• 2005/06 Waste Composition Study HTM
• 2002 Waste Characterization and Composition HTM
• Animal Mortality HTM
• Developing Concentration Limits at Permitted Solid Waste Facilities
  • Attachment 1: Tables
  • Groundwater Monitoring Statistics (US EPA Web site)
    Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance
• Disposal Status Report, 2011/2012
• Disposal Status Report, 2009/2010
• Questions and Answers: Disposal Ban for Computers, Monitors and Televisions
• Solid Waste Landfill Guidance Document HTM

Green Building

A Life Cycle Approach to Prioritizing Methods of Preventing Waste from the Residential Construction Sector in the State of Oregon

Final Report (Phase 2)

• Executive Summary only PDF
• Report only PDF (5.4MB)
• Appendices (3-14) XLS
• Appendix 17 PDF
• Key findings from the Phase 2 study

Phase 1 Report

• Report only  PDF (1.8MB)
• Appendix 2: Report Cards only PDF (3.4MB)
• Appendices (7-16) only XLS

Household Hazardous Waste

• HHW Report, 2008 - 2009
  This document provides an overview of activities related to HHW in Oregon during 2008 and 2009, including collections, product stewardship, and waste prevention. The report focuses on the accomplishments of DEQ, while also including information about programs operated by local governments and industry. An appendix includes data on cost, participation, and quantities of wastes collected at DEQ-sponsored collection events and through DEQ's free mercury collection program.
• Hazardless Home Handbook (on Metro's Web site)
• HHW Collection Facility Design and Operation Guidance Document
• HHW Management Plan 1.6MB
  • Report Only (Without Appendices) 1.1MB
  • Appendix A
  • Appendix B
  • Appendix C
  • Appendix D
• HHW Priority Assessment Report
• HHW Survey
  This document is a complete report of a telephone survey of Oregon households conducted by the Portland State University Survey Research Lab in January 2008. It is available to download as a complete report (minus Appendix E) or downloadable in sections. Appendix E of the report is available by contacting David Allaway (503-229-5479).
  • Complete Report (minus Appendix E) 1.9MB
  • Report Only (without Appendices) 80 pages
  • Appendix A 6 pages
  • Appendix B 58 pages
  • Appendix C 63 pages
  • Appendix D 24 pages
• Natural Gardening - A Guide to Alternatives to Pesticides (located on Portland's Metro Web site)
• Protect Yourself from Mercury!
• What is Household Hazardous Waste?

Product Stewardship

• Recommendations for Product Stewardship in Oregon
  This report recommends that Oregon pursue product stewardship as one strategy to reduce the environmental and public health impacts of products. It also recommends eight key elements for product stewardship programs and policy in Oregon.
  • Appendix A. Oregon Product Stewardship Stakeholder Group Summary of Meetings. By Oregon DEQ, 2010.
  • Appendix B. Review of Product Stewardship Programs. By Kelly Panciera, Oregon DEQ, April 2010.
  • Appendix C. Product Stewardship and Producer Financing Approaches. By Scott Klag, Oregon Metro, April 2010.
  • Appendix D. Convenience Standards in Product Stewardship Programs, By Jan Whitworth, Oregon DEQ, April 2010.
  • Appendix E. Disposal Bans and Product Stewardship. By Jan Whitworth, Oregon DEQ, April 2010.
  • Appendix F. Swimming Upstream: Product Stewardship and Promise of Green Design. By David Stitzhal, MRP, Full Circle Environmental, Inc.; funded by Oregon Metro Resource and Recycling, May 2010.
  • Appendix G. Performance Measures in Product Stewardship Programs. By Jan Whitworth, Oregon DEQ, July 2010.
  • Appendix H. Selecting Products and/or Materials for Product Stewardship Programs. By Abby Boudouris, Oregon DEQ, July 2010

Rigid Plastic Containers

• Current Report:
  • Rigid Plastic Container 2007/2009 Recycling Report
    This report, issued December 30, 2008, offers the most recent data on rigid plastic container recycling in Oregon, and presents the determination that the aggregate recycling rate for rigid plastic containers for compliance purposes will be above 25% in 2009.
• Past reports and presentation:
  • Rigid Plastic Container 2006/2008 Recycling Report
    This report was issued December 31, 2007 and offered the most recent data on rigid plastic container recycling in Oregon, and presented the determination that the aggregate recycling rate for rigid plastic containers for compliance purposes would be above 25% in 2008.
  • Presentation January 8, 2008: Oregon Rigid Plastic Container Recycling 2006/2008
    This presentation included information on the 2008 recycling rate, recycling rate trends since the law became effective, disposal, and factors affecting future recycling rates for plastic containers.
  • Supplemental Report: Rigid Plastic Container 2005/2007 Recycling Report Supplement
    This supplement to the 2005/07 report, issued June 20, 2007, revises the determination made in the original Rigid Plastic Container 2005/2007 report based on new data and finds that rigid plastic containers will be recycled at above 25% in 2007.

Waste Prevention

• Life Cycle Assessment of Drinking Water Systems HTM
• Life Cycle Inventory of Packaging Options for Shipment and Retail Mail-Order Soft Goods HTM
• NW Materialsmart Evaluation Report [This link will take you outside the DEQ Web site.]
  In 2002, a coalition of governments and business associations undertook a promotion campaign to increase the use of material exchange services in Oregon.
• Packaging HTM
  Case studies, best practices, and other materials are available for assistance in saving money through changes that reduce packaging waste and the environmental burdens of packaging.
• Packaging Waste Prevention Project Evaluation Report HTM
  Evaluation of DEQ's and Metro's packaging waste prevention project for business users of packaging.
• Resource Efficiency Tool Kit
  • Community Tools (63 pages)
  • Participant Tools (109 pages)
• Waste Prevention Brochure DOC
• Waste Prevention Brochure
• Waste Prevention Strategy HTM

Waste Recovery

• Composition of Commingled Recyclables Before and After Processing
• Reduce, Reuse, Recycle Brochure (English)
• Reduce, Reuse, Recycle Brochure (Spanish)

Oregon Material Recovery and Waste Generation Rates Report

• 2011 Report
  • Tables 1-9 only
• 2010 Report
  •  Tables 1-9 only
• 2009 Report: Tables 1-9 only
• 2008 Report: Tables 1-9 only

Oregon Material Recovery Survey Attachments

• Attachment A: Recovered Materials Definitions
• Attachment B: Measurement Standards and Reporting Guidelines
• Forms

Tanks

Heating Oil Tanks Program

• Contractor (Service Provider) Bulletins
  • February 2010
  • July 2009
  • May 2009
  • April 2009
  • February 2009
  • December 2008
  • March 2008
  • March 2007
  • November 2006
  • May 2006
  • December 2005
  • June 2005
  • March 2005
  • December 2004
• Developing Risk-Based Standards for Residential Heating Oil Tanks
• Generic Remedy Guidance Document
• Guidance for HOT Site Assessment and Cleanup
• HOT Decommissioning and Cleanup Guidance for Homeowners HTM
• Licensed Service Providers
• Preparing a HOT Decommissioning Report or a HOT Soil Matrix Cleanup Report HTM
• Quality Assurance Project Plan
• Realtor Bulletins
  • March 2007
  • November 2006
  • May 2006
• Requirements for Heating Oil Tanks No Longer In Use

Underground Storage Tanks Program

Compliance

• Assessing Underground Storage Tanks for Earthquake Damage HTM
• Guidance Pertaining to Replacement of Underground Piping
• How to Prepare for an UST Compliance Inspection
• Notification Requirements Summary for UST Decommissioning and Change in Service HTM
• Overfill Protection - Loose Fill Metered Deliveries into USTs
• Service Provider Updates
  • June 2005
  • March 2007
  • December 2009
• Service Provider UST Compliance Seminar Followup - June 2007
• Tank Calculator [This link will take you to a non-DEQ Web site.]
  Calculate product volume by inputting tank dimensions and product level. Also, generate charts of volume vs. product depth for any tank.
• Tankline Bulletin
  • August 2012
  • December 2011
  • March 2011
  • December 2010
  • October 2010
  • June 2009
  • October 2008
  • March 2008
  • October 2007
• Testing Secondary Containment and Piping During UST Installation
• UST Program Updates
  • February 2007
• UST Public Record
  • General Program Information for FFY 2012

Cleanup Guidance

• Approval of Bioremediation Technologies
• Approval of a Combined BTEX+Naphthalene Analytical Method HTM
• Calculating the One-Sided 90% Upper Confidence Limit of the Mean HTM
• Groundwater Monitoring Well Drilling, Construction, and Decommissioning
• Guidance for Applying the Low-Impact Site Rule to UST Cleanup Sites
• Guidance for Assessing and Remediating Vapor Intrusion in Buildings
• Northwest Total Petroleum Hydrocarbon Analytical Methods HTM
• On-Line Petroleum Release Reporting Guidance
• Permit Requirements for UST Cleanup Sites HTM
• Petroleum-Contaminated Soils - Approved Oregon Disposal Sites List HTM
• Petroleum-Contaminated Soils Handling Options
• Petroleum-Contaminated Soils Policy for Reuse
• Petroleum-Contaminated Soils Treatment Options
• Quality Assurance Project Plan
• Recovery Act Final Performance Report 2011
• Risk-Based Decision Making for the Remediation of Petroleum-Contaminated Sites HTM
• TPH References [This link will take you to a non-DEQ Web site.]
  • Volume 1: Analysis of Petroleum Hydrocarbons in Environmental Media
  • Volume 2: Composition of Petroleum Mixtures
  • Volume 3: Selection of Representative TPH Fractions Based on Fate and Transport Considerations
  • Volume 4: Development of Fraction Specific Reference Doses and Reference Concentration for Total Petroleum Hydrocarbons
  • Volume 5: Human Health Risk-Based Evaluation of Petroleum Contaminated Sites: Implementation of the Working Group Approach
• UST Cleanup Manual
• Voluntary Cost Recovery Agreement (INTERACTIVE PDF)

EPA Documents and References (External Web Pages)

Catalog of EPA Publications related to Underground Storage Tanks

Leaking Underground Storage Tank Corrective Action Compendium

Cleanup Documents

• EPA Analytical Methodologies for Fuel Oxygenates
• Expedited Site Assessment Tools For Underground Storage Tank Sites
• How to Effectively Recover Free Product At Leaking Underground Storage Tank Sites
• How to Evaluate Alternative Cleanup Technologies for Underground Storage Tank Site
• Integrated Risk Information System
• Modeling Subsurface Transport of Petroleum Hydrocarbons
• Soil Screening Guidance: User's Guide
• Soil Screening Guidance: Technical Background Document
• Test Methods for Evaluating Solid Waste (SW-846)

Compliance Documents

• Automatic Tank Gauging Systems for Release Detection
• Dollars and Sense
• EPA Regulatory Interpretation: Regulatory Status of E85
• Getting The Most Out Of Your Automatic Tank Gauging System
• Introduction to Statistical Inventory Reconciliation: For Underground Storage Tanks
• List of Known Insurance Providers for Underground Storage Tanks
• List of Leak Detection Evaluations for UST Systems, 19th Edition (January 2012)
• Musts for USTs: A Summary of the Federal Regulations for Underground Storage Tank Systems
• Operating and Maintaining Underground Storage Tank Systems: Practical Help and Checklists
• Straight Talk On Tanks: Leak Detection Methods for Petroleum Underground Storage Tanks and Piping
• Underground Storage Tank Flood Guide

Additional cleanup-related guidance documents that may be of use for UST cleanups can be found within the Land Quality's Environmental Cleanup Guidance section.



Water Quality

Best Management Practices

• The Disposal of Chlorinated Water
• The Disposal of Chlorinated Water From Swimming Pools and Hot Tubs
• Oregon Marinas
• Oregon Shipyards
• Washing Activities
• Washing Activities for Non-Profit Organizations

Groundwater Protection

• Estimation of Nitrogen Sources, Nitrogen Applied, and Nitrogen Leached to Groundwater in the Lower Umatilla Basin Groundwater Management Area - June 2011
• 2006 Groundwater Quality Report for the Deschutes Basin
• 2004 Groundwater Quality Report for the North Coast Basin
• 2004 Groundwater Quality Report for the Willamette Basin
• Southern Willamette Valley Groundwater Management Area Reports
• 1999 Milton-Freewater Groundwater Quality Study

Total Maximum Daily Loads

• Total Maximum Daily Loads: Implementation Plan Guidance

Water Quality Assessment

• Willamette Basin Rivers & Streams Assessment (2009)
• Oregon's 2004 Water Quality Assessment Section 305(b) Report
• Oregon's 2002 Water Quality Assessment Section 305(b) Report
• Oregon's 2000 Water Quality Assessment Section 305(b) Report
• Oregon's 1998 Water Quality Assessment Section 305(b) Report

Water Quality Standards

• 1992-1994 Water Quality Standards Review Issue Papers

WQ Rules: Division 052 - Review of Plans and Specifications



• Plan Review Guidelines

Intergovernmental Agreements



• Memorandum of Understanding between DEQ and the Bureau of Land Management - Meeting Water Quality Rules and Regulations (April 2011)
• Memorandum of Understanding between DEQ and the Oregon Department of Transportation (February 2011)
• Memorandum of Agreement between DEQ and Oregon Water Resources Department - Underground Injection Control Program (November 2010)
• Operating Agreement between DEQ and the Environmental Protection Agency - Clean Water State Revolving Fund (September 2010)
• Memorandum of Agreement between DEQ and the Environmental Protection Agency - NPDES Program (June 2010)
• Memorandum of Understanding between the Environmental Quality Commission and the Oregon Department of Agriculture - Confined Animal Feeding Operations Program (December 2009)

WQ Internal Management Directives

• Antidegradation Policy Implementation IMD - Mar. 2001
• Arsenic Reduction Policy in Surface Water Drinking Water Source Area - May 7, 2013
• Compliance Schedules in NPDES Permits



• Implementation of Methylmercury Criterion in NPDES Permits - Jan. 8
  • Transmittal Memo for Implementation fo Methylmercury Criterion
  
  
  
• Implementing Oregon's Biosolids Program IMD - Dec. 2005
• Indirect Discharge to Surface Water via Groundwater or Hyporheic Water - Sept. 2007
• Interim Procedure for Addressing Naturally Occurring Arsenic in NPDES Permits - Note: This document applies only to permits that reference it.



• Monitoring Background Groundwater Quality IMD for Regulating Permitted Operations under OAR 340-040-0030 - July 2003
• Nonpoint Source Compliance With the Protecting Cold Water Criterion of the Temperature Standard
• Operations, Monitoring and Management (OM&M) Plans for Land Application of Non-Sanitary Wastewater - Nov. 2002
• Oregon Bacterial Rule: Bacterial Criteria for Marine and Estuarine Waters
• Reasonable Potential Analysis for Toxic Pollutants IMD, Revision 3.1 - Feb. 2012
  
  
  • Transmittal Memo for Reasonable Potential Analysis IMD - Aug. 2011
  • RPA Calculation Workbook, Domestic; Revision 3.1 (Feb. 2012) XLSX
  • RPA Calculation Workbook, Industrial; Revision 3.0 (May 2013) XLSX
    
    
• Reasonable Potential Analysis for Toxic Pollutants, Revision 3.0 August 2011: Exceptional Analytic Methods, limits and Implementaion Guidelines
• Recycled Water IMD - June 2009
• Regulatory Mixing Zone IMD - May 2012
  
  
  • Part 1: Allocating Regulatory Mixing Zones
  • Part 2: Reviewing Mixing Zone Studies
• Transmittal Memo
  
  
• Sanitary Sewer Overflows (SSOs) IMD - Nov. 2010
• Site Specific Background Pollutant Criterion IMD (SSBPC) - June, 2012



• SSBPC IMD Transmittal Memo
• Please contact a Surface Water Management representative at 503.229.5415 to obtain the worksheets associated with the implementation of the criterion.
  
  
• Temperature Water Quality Standard Implementation IMD - Apr. 2008
• Use Attainability Analysis and Site Specific Criteria
• Use of Significant Figures and Rounding Conventions in Water Quality Permitting - May 2012
  
  
  • Transmittal Memo
  
  
  
• Variances for NPDES Permit Holders - Feb. 2012
• Water Quality Trading IMD - Dec. 2009

Draft Internal Management Directives

• Substantial and Non-Substantial Pretreatment Program Modifications IMD - Draft Apr. 2005

[print version]