Septic systems in Falmouth, Maine.
Falmouth is split between two kinds of wastewater. The town's collection system — about 58 miles of pipe and 33 pump stations, according to the 2024 Comprehensive Plan — runs the full length of Route 1 and Route 88 and reaches west to Route 100, Winn Road and Falmouth on the Green. Much of the rural residential land beyond it, including large parts of West and North Falmouth, Blackstrap and the Highland Lake shore, relies on private septic. We install new and replacement systems there: excavation, tank, distribution and leach field, coordinated with the homeowner's site evaluator, and finished with the yard graded and seeded.
How the soils steer the design
Maine regulates septic systems under the state Subsurface Wastewater Disposal Rules, with site evaluators licensed by the state and permits issued through the municipal plumbing inspector. The evaluator's test pits decide what the design must be, and Falmouth's soils give them plenty to find.
The NRCS survey maps Lyman soils over bedrock at around 18 inches and Tunbridge at around 28, which leaves little native soil for treatment and often calls for a raised or mounded field. Woodbridge and Paxton till carry a dense layer that perches water; Scantic and Lamoine silt near the estuary are poorly or somewhat poorly drained. Hinckley and Windsor sands drain quickly — the challenge there is effluent moving too fast toward groundwater, including the sand and gravel aquifer the plan maps north of the Presumpscot along I-95.
Shoreland lots and protecting the well
The Comprehensive Plan notes that holding tanks are not allowed for a first-time residential use in the shoreland zone and must be at least 100 feet from a perennial water body. Around Highland Lake — 623 acres shared with Westbrook and Windham, and under a 2020 watershed management plan after repeated picocyanobacteria blooms — a failing system is a water-quality problem as well as a household one.
On lots with a private well, the field's placement relative to the well and the property line is part of the evaluator's design, and it is the first thing checked when a replacement goes in.
The Falmouth Wastewater Treatment Facility accepts septage from Falmouth residents for a fee. Once the new system passes inspection, the finished yard is graded, loamed and seeded so the field is covered, stable and ready to mow.
Septic Installs · Excavation
How we handle septic systems
We install new and replacement septic systems for homes and camps across the Cumberland area. From site work and excavation through tank, distribution and leach field install, we coordinate with your site evaluator and leave the yard graded, seeded and clean.
See the full septic systems service page or everything we do in Falmouth, Maine.
Septic Systems in nearby towns
- Septic Systems in Cumberland
- Septic Systems in Portland
- Septic Systems in Yarmouth
- Septic Systems in South Portland
- Septic Systems in Westbrook
More services in Falmouth
- Hardscaping in Falmouth
- Retaining Walls in Falmouth
- Landscaping in Falmouth
- Landscape Design in Falmouth
- Planting & Garden Beds in Falmouth
- Hydroseeding, Sod & Turf in Falmouth
- Lawn Aeration & Overseeding in Falmouth
- Fall Cleanup & Leaf Removal in Falmouth
- Commercial Mowing & Cleanups in Falmouth
- Excavation & Land Clearing in Falmouth
- Tree & Shrub Services in Falmouth
- Tree Removal in Falmouth
Sources for the local facts on this page
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