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Maine Subsurface Wastewater Disposal Policies
Policies
- Minimum Lot Size Waiver Request Review Protocol (PDF)
- Engineered Subsurface Wastewater Disposal System Review Procedure Revised December 2023. (PDF)
- Replacement System Variances in Close Proximity to Waterbodies/Courses and/or Wells Subject to Shoreland Zoning requirements
- Review of Variance Requests – Advanced Treatment or Advanced Tertiary Treatment on Marginal or Failing Sites (DOCX)
Guidance
- Guidance on 2023 Rule Revisions Addressing Temporary Portable Toilets (Chapter 241 – Section 5(I)(6))
In the 2023 amended rules, the Department added a definition for temporary portable toilets, as well as restrictions concerning temporary portable toilets being used as permanent wastewater disposal solutions. Click here to view or download the guidance information. (PDF) - Replacement Subsurface Wastewater Disposal Systems on Offshore Islands
This guidance document addresses designing replacement subsurface wastewater disposal systems on offshore islands. In particular, those situations in which an existing overboard discharge, licensed by the Maine DEP, is being replaced by a subsurface system designed pursuant to the Subsurface Wastewater Disposal Rules, CMR 241. Learn more. (PDF)
Updated 12/5/2023
