CH Septic and Sons

Septic in Maynard is governed by Title 5 (310 CMR 15.00), though it applies only to the minority of lots not on municipal sewer. The Maynard Board of Health issues the disposal works construction permit, and a witnessed deep-hole and percolation test must establish soil and groundwater conditions before design. A registered sanitarian or professional engineer stamps the plan, and a licensed installer builds it. Lots near the Assabet River and its wetlands may also need Conservation Commission review under the Wetlands Protection Act. A Title 5 inspection is required before most property transfers for septic-served homes.

Septic costs in Maynard, on the few lots that need a system, run at eastern-Massachusetts suburban rates. A conventional gravity replacement typically runs roughly $20,000–$32,000, though high groundwater near the Assabet can push a pressure-dosed or mounded design to $30,000 or more. Where a sewer main is in the street, a betterment-funded connection is often cheaper than a new septic system and is the common path. A Title 5 inspection runs a few hundred to about $1,000, and tank pumping a few hundred. Sewer availability, not soil, is the main cost question here.

Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential septic installation & service work; ask for the registration number and check it before paying a deposit.

More on permits, costs, rebates and common questions, plus every other septic installation & service contractor serving the town, on the Septic Services in Maynard page.