Rural Home CompassME homeowner guide
Maine: private well + septic
Maine gives private-well owners an unusually specific testing calendar: bacteria and nitrogen compounds every year, a broader chemical and radiological group every three to five years, and additional testing after household, treatment, or well changes.
Maine-specific value comes from its statutory uniform-recommendation framework, fifteen-item initial-use package, annual plus three-to-five-year schedule, radiological emphasis, and mapped-versus-unlocated well-record workflow.
Private wells are owner-managed; Maine CDC recommends annual coliform, E. coli, nitrate, and nitrite testing plus a defined three-to-five-year chemical and radiological group.
Maine homeowner guidance uses a two-to-five-year tank-check window, with pumping based on inspection, use, and system conditions rather than the calendar alone.
Maine CDC publishes the testing recommendation and laboratory path, the Maine Geological Survey holds submitted construction records, and municipalities administer most property-specific septic files.
Search both mapped and table-based Maine Geological Survey well records, then request well documents and the HHE-200 septic design from the municipality and seller.
Private well testing overview
Maine uses different testing paths for different moments.
New-well completion, routine ownership, a home purchase, and a flood or repair are not the same testing decision. Use the dedicated guide for the exact timing, required parameters, laboratory route, and county records to request.
Open the Maine private-well testing guide →Septic facts that change your next step
- Maine homeowner guidance says septic tanks should be checked every two to five years and pumped when inspection shows it is necessary.
- Garbage disposals, treatment discharge, high occupancy, excessive water use, and harsh cleaning products can increase maintenance needs.
- The municipality is the first place to request the HHE-200 design; the state permit search does not guarantee that every design is available.
- Put the annual and three-to-five-year well testing groups on separate household dates.
- Search both mapped and unlocated Maine well records and request the municipal septic design.
- Use accredited-analyte scope and the laboratory’s current sampling instructions before collecting.
Official state sources
- Maine Center for Disease Control and Prevention: Private Well WaterReviewed 2026-09-13
- Maine Legislature: Title 22 §2660-T: Uniform testing recommendationReviewed 2026-09-13
- Maine Health and Environmental Testing Laboratory: Maine HETL New Well TestReviewed 2026-09-13
- Maine Center for Disease Control and Prevention: Laboratory Accreditation and current listingsReviewed 2026-09-13
- Maine Health and Environmental Testing Laboratory: Private-well sampling and HETL submissionReviewed 2026-09-13
- Maine Center for Disease Control and Prevention: Well Water Information Request and test-kit assistanceReviewed 2026-09-13
- Maine Center for Disease Control and Prevention: PFAS and Well WaterReviewed 2026-09-13
- Maine Center for Disease Control and Prevention: Hydrogeology and WellsReviewed 2026-09-13
- Maine Health and Environmental Testing Laboratory: Environmental Organics and MetalsReviewed 2026-09-13
- Maine Geological Survey: Maine Water Well Database and coverage notesReviewed 2026-09-13
- Maine Legislature: Title 12 §550-B: Water well informationReviewed 2026-09-13
- Maine Legislature: Title 22 §2660-Y: Landlord arsenic testingReviewed 2026-09-13
- U.S. Environmental Protection Agency: What to Do With Your Private Well After a FloodReviewed 2026-09-13
- Maine Center for Disease Control and Prevention: Maine CDC Resources and Septic Maintenance TipsReviewed 2026-10-05
- Maine Center for Disease Control and Prevention: Septic permit search and homeowner resourcesReviewed 2026-09-13