Septic Services in Medway, Massachusetts

Mass Save does not cover septic. The program funds heating, cooling, water heating, and weatherization, never sewage disposal, so an energy-rebate pitch for a Medway septic job is wrong. The town's Eversource electric service has no effect on septic eligibility.

The real incentive is the Massachusetts Title 5 tax credit on MA DOR Schedule SC, a state income-tax credit for upgrading a failed system to Title 5 compliance, worth up to roughly $18,000 spread over years and subject to annual caps per the DOR. Medway homeowners may also qualify for MassDEP Community Septic Management betterment loans where offered, low-interest Title 5 repair loans repaid as a betterment on the property tax bill, which helps when a replacement runs past $25,000.

Septic in Medway runs through Title 5 (310 CMR 15.00). The Medway Board of Health issues the disposal works construction permit, and a witnessed deep-hole and percolation test must establish soil and groundwater conditions before a design is approved. A registered sanitarian or professional engineer stamps the plan, and a licensed installer builds it. Lots near the Charles River, its tributaries, or wetlands may also trigger Conservation Commission review under the Wetlands Protection Act. A Title 5 inspection is required before most property transfers, even where neighboring streets are on sewer.

Septic costs in Medway sit at the eastern-Massachusetts suburban level, above central and western MA but below Cape and Boston-core rates. A conventional gravity replacement typically runs roughly $20,000–$32,000, with high groundwater near the Charles drainage sometimes forcing a pressure-dosed or mounded system at $30,000 or more. A Title 5 inspection runs a few hundred to about $1,000, perc and soil testing a few hundred to over a thousand, and tank pumping a few hundred. Groundwater depth is the main local cost driver where lots back up to wetlands.

Medway is a suburban town of 13,164 in Norfolk County, with about 4,598 housing units and a median home age near 50 years. It sits in the Charles River headwaters region between Franklin and Millis, and its sewer picture is split: parts of Medway are connected to municipal sewer, while many outlying streets and older subdivisions remain on private septic.

That split is the first thing a homeowner has to sort out. Where homes are on septic, the pre-2000 building era means a fair number of leach fields and a few cesspools are now near the end of their life and likely to fail a Title 5 inspection. The local terrain is gravel and till over the Charles drainage, so perc testing and groundwater depth drive most new designs.