Conway Excavating

Septic in Lakeville is governed by Title 5 (310 CMR 15.00), with added scrutiny in the Assawompset Pond drinking-water watershed. The Lakeville 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 ponds or wetlands draw Conservation Commission review under the Wetlands Protection Act. A Title 5 inspection is required before most property transfers.

Septic costs in Lakeville run at southeastern-Massachusetts rates, below Cape and Boston-metro pricing but lifted by the high water table and watershed scrutiny. A conventional gravity replacement typically runs roughly $20,000–$30,000, but where groundwater sits close to the surface near the ponds, raising the system on fill or pressure dosing often pushes the job to $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. The high water table near Assawompset Pond is the main cost driver 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 Lakeville page.