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Septic service in Lexington, MA

Homes in Lexington that are not on city sewer depend on a septic tank and drain field that need regular care. Whether you need routine pumping, a repair, an inspection for a home sale or a new system, a local septic company that works in Lexington and across Middlesex County can help.

Lexington has about 33,882 residents across 16.4 square miles. The same crews typically serve Arlington, Waltham, Burlington and other nearby communities.

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Keeping a Lexington septic system healthy

A septic tank in Lexington only needs a few things from you. Pump it on a schedule, keep heavy vehicles off the drain field, and send only water and waste down the drains. Grease, wipes and harsh chemicals shorten the life of the tank and the field. A quick yearly look at the lids and the ground above the field catches small problems early.

Signs your system needs attention

Septic problems tend to show up gradually. Listen for gurgling pipes, watch for slow drains in more than one fixture, and check the yard for standing water or a sewer smell after heavy water use. If an alarm sounds on a pump or aerobic system, cut back on water and call for service rather than silencing it and waiting.

What to ask before you hire

Useful questions include: Are you licensed for septic work where I live? Will you inspect the baffles and filter when you pump? What would you recommend and why? Is a permit needed? Companies that serve Lexington regularly should know the local rules and the systems common in the area.

New construction and septic in Lexington

Building on a lot without sewer near Lexington starts with a soil evaluation and a permit from Middlesex County. The soil test decides what kind of system the lot can support and how large the drain field must be. Some lots need a mound or another engineered system. Get this done before finalizing house plans.

Local conditions in Lexington

Among the mapped soils within about two miles of central Lexington, the USDA soil survey rates 95% as very limited for septic absorption fields, 3% as somewhat limited and 2% as not limited. The most common drainage class is well drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.

Lexington averages about 48 inches of precipitation a year, and October is usually the wettest month. Average temperatures stay below freezing for about 2 months a year, with January averaging 26°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.

Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.

Septic services in Lexington

Common septic questions in Lexington

How often should a septic tank in Lexington be pumped?
Most households pump every three to five years. Tank size, the number of people in the home and whether you use a garbage disposal all change that. A local company can check your tank and set a schedule.
Who handles septic permits for Lexington?
Septic permits and inspection rules are usually set at the county or state level. Check with the Middlesex County health department or permitting office, or ask the septic company to pull permits for you.
What are signs of septic trouble?
Slow drains in several fixtures, gurgling pipes, sewage odors, wet or unusually green grass over the drain field, and backups in the lowest drains are the common warning signs.
Does SepticTank.com do the work?
No. SepticTank.com connects you with an independent local septic company that serves Lexington and nearby communities.
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