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Guidance

Agency guidance documents include written documents intended to guide agency actions affecting the rights or interested of people or groups outside the agency (Idaho Code §67-5250(2)).  

Other policy documents are intended to guide internal matters within the agency and are not posted online. 

A Memorandum of Understanding (MOU) is a legally nonbinding agreement between two or more parties that outlines terms and details of a mutual understanding or agreement, noting each party’s requirements and responsibilities. 

Program Type Title
IPDES Guidance IPDES User’s Guide to Permitting and Compliance Volume 1—General Information
IPDES Guidance Idaho Pollutant Discharge Elimination System User’s Guide to Permitting and Compliance Volume 4—General Permits Excluding Storm Water
IPDES Guidance Idaho Pollutant Discharge Elimination System User’s Guide to Permitting and Compliance Volume 3—Non-POTW
IPDES Guidance Idaho Pollutant Discharge Elimination System User’s Guide to Permitting and Compliance Volume 2—Publicly Owned Treatment Works
WM&R Policy DEQ Bunker Hill Land Transfer Policy 2020
Storm Water Guidance Idaho Catalog of Storm Water Best Management Practices
Solid Waste Guidance Guidance for Siting, Design, and Operation of Nonhazardous Solid Waste Impoundments in Idaho
IPDES Guidance Idaho Pollutant Discharge Elimination System DRAFT User’s Guide to Permitting and Compliance Volume 5—Storm Water
IPDES Guidance Idaho Pollutant Discharge Elimination System DRAFT User’s Guide to Permitting and Compliance Volume 6—Sewage Sludge (Biosolids)
Wastewater Guidance Guidance for the Land Application of Domestic Septage WW
Solid Waste Guidance Guidance for Siting, Design, and Operations of Non-Municipal Solid Waste Landfills in Idaho
Air Quality Guidance Interpreting the Word “Addressed” in Subsection 210.20.
WM&R Letter EPA and DEQ Resource Conservation and Recovery Act Memorandum Of Agreement
WM&r Letter EPA and DEQ RCRA MOA
Surface Water Guidance Concepts and Recommendations for Using the “Natural Conditions” Provisions of the Idaho Water Quality Standards
Air Quality Guidance AQ guidance modeling State of Idaho Guideline for Performing Air Quality Impact Analyses AQ-011 September-2013 0913
Air Quality Guidance Air Quality in Idaho: Supplemental Fugitive Dust Control Information
Air Quality Guidance A Guide to Visible Emissions Evaluations
Surface Water Guidance Guidance for Interpreting Antidegradation Policy for Unassessed, Ephemeral and Intermittent Streams
Surface Water Policy 401 Certification – ACOE 60 Day Deadline Policy Directive
IPDES Guidance Idaho Pollutant Discharge Elimination System Compliance Monitoring Strategy
IPDES Guidance Idaho Pollutant Discharge Elimination System Application Program Description 2016
IPDES Letter Idaho Pollutant Discharge Elimination System Application, Governor’s Letter
IPDES Letter Idaho Pollutant Discharge Elimination System Application, Attorney General’s Signed Certification
IPDES Letter Idaho Pollutant Discharge Elimination System Application, 2017 Cover Letter
Drinking Water Guidance After the Flood: Protecting Your Drinking Water
Surface Water Memorandum Application of Water Quality Standards to Non-Perennial Waters
Wastewater MOU Between the Idaho State Department of Agriculture and IDEQ regarding regulations of composting facilities
Wastewater Guidance Biosolids Beneficial Use and Disposal Flowchart
Drinking Water Guidance Choosing an Environmental Consultant
Surface Water Memorandum Continuous Temperature Monitoring Requirements in NPDES Permits
Air Quality Guidance Crop Residue Burning Operating Guide
Wastewater Memorandum Delegation of Authority for Issuing Waivers for the sections of the Idaho Rules for Public Drinking Water Systems, Wastewater Rules, and Recycled Water Rules
Wastewater Memorandum DEQ to Health Districts – Engineering Design Review for Subsurface Sewage Disposal Systems
Drinking Water Fact Sheet Drinking Water Cross-Connection Control Programs
Drinking Water Guidance Drinking Water Monitoring Waiver Guidance
Drinking Water Policy Drinking Water Penalty Policy
Ground Water Guidance Implementation Guidance for the Drinking Water Program – Ground Water Rule
Drinking Water Guidance Drinking water, submersible pumps, and mercury seals: A potential problem
Air Quality Guidance Dust, Fugitive: Prevention and Control Plan
Air Quality Guidance Emissions Data Hierarchy Guidance
WM&R Manual Enforcement Procedures Manual
WM&R MOA EPA and DEQ Resource Conservation and Recovery Act MOA
Wastewater Guidance EPA Biosolids Guidance
IPDES Letter EPA Letter of Idaho Pollutant Discharge Elimination System Program Authorization and CROMERR Approval, E. Scott Pruitt, June 5, 2018
IPDES Letter EPA Letter to DEQ Finding Idaho Pollutant Discharge Elimination System Program Application Submission Complete, Dennis J. McLerran, September 3, 2016
Drinking Water Guidance Guidance for Actions to be Taken Following Drinking Water System Depressurization
Drinking Water Guidance Guidance for Determining Equalization Water Storage for Public Water Systems
Ground Water Guidance Guidance for Developing a Ground Water Quality Monitoring Program for Managed Recharge Projects by Land Application
Wastewater Guidance Guidance for Evaluating Wastewater Lagoon Seepage Rates
Drinking Water Guidance Guidance for Handling Waste Residuals Resulting from Drinking Water Treatment
Surface Water Guidance Guidance for Interpreting Antidegradation Policy for Unassessed, Ephemeral and Intermittent Streams
Wastewater Guidance Guidance for Land Application of Municipal Biosolids
Drinking Water Guidance Guidance for New Source Water Testing Procedures for Public Drinking Water Systems
Drinking Water Guidance Guidance for Public Water System Disposal of Water from Construction, Maintenance, and Operations
Wastewater Guidance Guidance for Reclamation and Reuse of Municipal and Industrial Wastewater
Air Quality Guidance Guidance for the Remediation of Petroleum-Contaminated Media
Surface Water Guidance Guidance for the Use of Wood Preservatives
Drinking Water Guidance Guidance to Determine Continual Operational Problems Necessitating Submittal of an Operation and Maintenance Manual
Surface Water Guidance Guide to Selection of Sediment Targets for Use in Idaho TMDLs
Drinking Water Guidance How to Demonstrate Financial, Technical, and Managerial Capacity in New Public Water Systems
Drinking Water Guidance How to Hire an Engineer for Public Water System and Wastewater System Design or Modification
Surface Water Guidance Idaho Antidegradation Implementation Procedures
Surface Water Guidance Idaho Mixing Zone Implementation Guidance
Surface Water Guidance Idaho Waste Management Guidelines for Aquaculture Operations
Drinking Water Guidance Implementation Guidance for the Filter Backwash Recycling Rule
Surface Water Guidance Implementation Guidance for the Idaho Copper Criteria for Aquatic Life: Using the Biotic Ligand Model (BLM)
Surface Water Guidance Implementation Guidance for the Idaho Mercury Water Quality Criteria
Drinking Water Guidance Implementation Guidance for the Interim Enhanced Surface Water Treatment Rule
Drinking Water Guidance Implementation Guidance for the Long-Term 2 Enhanced Surface Water Treatment Rule
Drinking Water Guidance Implementation Guidance for the Long-Term One Enhanced Surface Water Treatment Rule
Drinking Water Guidance Implementation Guidance for the Stage 1 Disinfectants and Disinfection By-Products Rule
Drinking Water Guidance Implementation Guidance for the Stage 2 Disinfectants and Disinfection By-Products Rule
Drinking Water Guidance Implementation Guidance for the Use of Non-Centralized Drinking Water Treatment Devices: Point of Use
Surface Water Guidance Implementation of The 2016 Idaho Mixing Zone Guidance
Wastewater MOA Interagency agreement between DEQ and the Idaho Division of Building Safety – Plumbing Burerau
IPDES Letter Idaho Pollutant Discharge Elimination System Application, 2017 Cover Letter
IPDES MOA Idaho Pollutant Discharge Elimination System Application, Memorandum of Agreement (MOA) with EPA, 2018
IPDES Letter Idaho Pollutant Discharge Elimination System Application, Program Description
IPDES Guidance Idaho Pollutant Discharge Elimination System Compliance Monitoring Strategy
IPDES Guidance Idaho Pollutant Discharge Elimination System Designation Criteria and Selection Process for Small MS4s
IPDES Guidance Idaho Pollutant Discharge Elimination System Effluent Limit Development Guidance
IPDES Guidance Idaho Pollutant Discharge Elimination System Enforcement Response Guide
IPDES Guidance Idaho Pollutant Discharge Elimination System Industrial User Survey Guidance
IPDES MOU Idaho Pollutant Discharge Elimination System MOU with Idaho State Department of Agriculture (ISDA)
IPDES Guidance Idaho Pollutant Discharge Elimination System Public Participation in the Permitting Process
IPDES Guidance Idaho Pollutant Discharge Elimination System Technical Support Document Reasonable Potential Analysis Workbook
IPDES Guidance Idaho Pollutant Discharge Elimination System Tribal Participation Process
Wastewater Memorandum Large Soil Absorption System Ground Water Constituent Monitoring
Drinking Water Guidance Minimum Separation Distances
Air Quality Guidance Modeling Guidance
WM&R MOU Mountain Home Airforce Base and DEQ MOU
Wastewater Guidance Nutrient-Pathogen Evaluation Program for On-Site Wastewater Treatment Systems
Wastewater Guidance Pile Sampling White Paper
Ground Water Policy Policy for Addressing Degraded Ground Water Quality Areas
Air Quality Policy Policy on Reviewing a Request for Institution with Sensitive Population Status for the CRB Program
Drinking Water Guidance Potable and Non-Potable Line Crossings: Vertical Separation Requirements
Drinking Water Guidance Potable and Non-Potable Line Separations: Horizontal Separation Requirements
Ground Water Guidance Procedure for Determining Ground Water Under the Direct Influence of Surface Water (GWUDI)
Drinking Water Guidance Protecting Drinking Water Sources in Idaho
WM&R Policy PS20-12 Hazardous Waste Management Act Civil Penalties
Drinking Water Guidance Recommendations for Hiring a Contract Operator: For Idaho Public Drinking Water and Public Wastewater Systems
Drinking Water Guidance Recommended Horizontal Separation Distances Between the Outside Wall of Drinking Water Line and the Edge of Storm Water Facilities
Wastewater MOU Regarding Regulation of Byproducts and Wastewater from Beef Cattle Animal Feeding Operations
Wastewater MOU Regarding Regulation of Byproducts and Wastewater from Cultured Dairy Production
Wastewater MOU Relative to Oil and Gas Conservation, Water Quality, Waste Facility Plans, and Air Quality
Wastewater SOP Reuse Permit Handoff Standard Operating Procedure
Drinking Water Fact Sheet Revised Total Coliform Rule: Level 1 & Level 2 Assessments and Corrective Actions
Drinking Water Fact Sheet Revised Total Coliform Rule: Repeat Monitoring Requirements for Small Systems
Drinking Water Fact Sheet Revised Total Coliform Rule: Requirements for Seasonal Systems
Drinking Water Fact Sheet Revised Total Coliform Rule: Requirements for Small Systems on Monthly Monitoring
Drinking Water Fact Sheet Revised Total Coliform Rule: Requirements for Small Systems on Quarterly Monitoring
Drinking Water Guidance Revised Total Coliform Rule: Sample Instructions
Drinking Water Guidance Revised Total Coliform Rule: Seasonal Start-Up Procedures
Wastewater Memorandum Memorandum of Understanding Between DEQ and Idaho’s Public Health Districts
Wastewater Guidance Rule Interpretation for Land Application of Bagged Biosolids that Meet Class A Exceptional Quality Requirements
Surface Water Guidance Section 401 Water Quality Certification Guidance
Wastewater Guidance Seepage Test Spreadsheet for Electronic Method
Wastewater Guidance Seepage Test Spreadsheet for Manual Method or Hook Gauge
Drinking Water Guidance Setbacks from Drinking Water Wells to Features of Concern
Air Quality Manual Source Test Guidance Manual
Surface Water Guidance State of Idaho Guidance for Development of Total Maximum Daily Loads
Ground Water Guidance Statistical Guidance for Determining Background Ground Water Quality and Degradation
WM&R Policy Supplemental Environmental Projects Policy
Drinking Water Guidance Surface Water Treatment Rule Compliance Guidance
Surface Water Memorandum Synching TMDLs with the Integrated Report
Wastewater Guidance Technical Guidance Manual
Surface Water Guidance Use Attainability Analysis Guidance 2019
Air Quality Guidance Visible Emissions, Guide to Evaluating
Wastewater Guidance Visual Sample Plan (VSP) software
Wastewater Guidance Wastewater Lagoon Seepage Test Statistical Review
Wastewater Manual Wastewater Land Application Operators Study and Reference Manual
Surface Water Guidance Water Body Assessment Guidance 3rd Edition
IPDES Policy Water Quality Administrative Penalty Guidance
Surface Water Guidance Water Quality Trading Guidance

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