Septic systems, sewer lines and excavation across Rhode IslandSeptic and excavation across Rhode Island
Call or text (401) 474-8926 Contractor Reg: 2681 · DEM: L1362
South County Septic & Excavation Services
Septic system installation in Coventry, RI
Service Area

Septic System Installation in Coventry, RI

Serving Coventry · Kent County

Septic, Sewer and Excavation Services in Coventry

Most homes in Coventry rely on a septic system or a cesspool. The town sewer serves properties along Tiogue Avenue, Sandy Bottom Road, Washington Street and Main Street in the east. The town's 2023 Wastewater Facility Plan counted 715 addresses on it. In the plan's survey of eastern neighborhoods, nearly 12 percent of reported systems were cesspools.

South County Septic and Excavation Services handles septic system installation in Coventry, part of our service area. We design each system for its lot through our septic system design work, for new homes and replacements. The Rhode Island Department of Environmental Management (RIDEM) approves the plans, and then we install the system. Call or text (401) 474-8926, and we look at the job and put the quote in writing.

What We Do in Coventry

Request a Quote in Coventry

Tell us about the septic, sewer, drainage or excavation job and where the property is. We look at the job and put the quote in writing.

Which Coventry homes are on septic?

Coventry runs about 14 miles from West Warwick to the Connecticut line, the town's 2026 plan update says. The mill villages of Anthony, Washington, Quidnick and Harris grew up in the east, along the Flat and Pawtuxet Rivers. Central and western Coventry stay rural, with large lots and open land.

Coventry's sewer lines carry wastewater to West Warwick's treatment plant. The 2023 sewer plan proposes no sewers for western Coventry, where it says large lots are well served by septic. Census estimates date about 45 percent of Coventry homes to before 1970. RIDEM notes that most home systems installed after 1970 are not cesspools.

Coventry's sewer ordinance requires homes on a sewered street to connect within a year of the town's official notice. A home with a working septic system that meets RIDEM standards can keep it until the system fails. Then the owner must connect, unless the Town Council grants a waiver. The owner pays for the building sewer, and that pipe is sewer line repair and installation work we do.

Ledge and wet till under Coventry lots

About half of Coventry sits on glacial till, a mix of sand and cobbles with scattered boulders. USDA soil maps show more Canton soil in town than any other kind, and Canton drains well. The harder limit is shallow bedrock, which the town's sewer plan calls a restrictive factor. A 2017 town memo cited a high concentration of ledge in the Quidnick area.

The state's onsite wastewater treatment system (OWTS) Rules set how much soil a leach field needs. Bedrock or a hard, packed layer that holds water back must sit at least 4 feet below the natural ground. The stone under the field must sit at least 5 feet above that layer. Test holes dug for the soil evaluation show where it is.

Wet till is the other limit, and NOAA's Coventry station logs about 52 inches of precipitation in a normal year. Ridgebury and Woodbridge soils hold a high water table, and the sewer plan maps Woodbridge northwest of Johnson's Pond. The stone under a leach field must stay at least 3 feet above the seasonal high water table. Where a lot falls short, fill can raise the field, often with a pump to lift the wastewater.

Septic systems by Tiogue Lake and Johnson's Pond

Tiogue Lake and Johnson's Pond, the Flat River Reservoir, began as mill ponds that powered Coventry's mills. Homes and subdivisions grew up along both, mostly on the town's eastern side. The sewer plan links septic trouble there to small parcels and dense neighborhoods.

Tiogue Lake has a history of blue-green algae blooms and high bacteria counts. A town study named septic systems and cesspools among the likely sources, along with stormwater and animal waste. A review of permit records found 60 septic systems added near the lake from 2012 on, and 41 were repairs.

The plan ranks the area south of Tiogue Avenue, beside Tiogue Lake, first for new sewers. It also proposes sewers by Johnson's Pond and the South Branch of the Pawtuxet River within 20 years. Until a sewer reaches those streets, the homes stay on septic. When an older system backs up, septic system repair starts with finding the cause.

New homes on private wells in western Coventry

West of Johnson's Pond, most parcels hold single-family homes, with forest on about half the land. Past Victory Highway (Route 102), forest dominates and farms appear toward the western edge. Rural lots rely on private wells, while the Kent County Water Authority generally serves the developed east. Rural residential zoning calls for large lots, sized for both a well and a septic system.

The state rules keep a home's leach field at least 100 feet from a private drinking water well. The septic tank must sit 75 feet away, and the building sewer 50 feet. On a new lot, those distances decide where the house and the well can go.

The town plan cites a state projection of 39,172 residents by 2040, roughly 10 percent growth. Water and wetlands cover about a fifth of the town, the sewer plan says. A leach field cannot go inside a freshwater wetland's regulated area without approval from RIDEM's wetlands program. We clear and grade a new lot around the approved layout as part of our site work.

Communities and areas we serve around Coventry: Anthony, Washington Village, Quidnick, Harris, Arkwright, Coventry Center, Summit Village, Greene, Tiogue Lake, Briar Point, Johnson's Pond, Tiogue Avenue (Route 3).

Coventry ZIP codes served: 02816, 02827.

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Serving Coventry and nearby

Coventry is part of our service area. We look at the job first, then put the quote in writing.

(401) 474-8926
Our Services in Coventry

Every Service We Bring to Coventry

Septic system repair with an opened concrete tank showing the green outlet pipe and filter

Septic System Repair

We find out why a septic system is failing and repair the part that failed. That covers septic tanks, distribution boxes, pipes and leach fields across Rhode Island.

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Septic system design soil evaluation with a test pit measured by tape and logged on a clipboard

Septic System Design

We dig the test holes and lay out a septic system that fits your lot's soil. The design package then goes to RIDEM for approval.

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Sewer line repair pit with new green PVC pipe and fittings joined to the old line

Sewer Line Repair

We dig up and replace broken and root-filled sewer lines, from the house to the street or the septic tank. We also lay new sewer lines for homes that tie into town sewer.

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Water line repair with a backhoe digging at the curb and new blue pipe laid out

Water Line Repair

We find and fix leaking or broken water lines between the street or the well and your house. We also lay new water lines for new homes.

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Drain cleaning camera inspection fed through a cleanout with the monitor beside it

Drain Cleaning

We clear clogged drains and main lines, and we cut tree roots out of the pipe. A camera inspection then shows what caused the clog.

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Excavation for a home addition with a new poured foundation standing in the open dig

Excavation

Excavation for foundations, additions, utility trenches and pads across Rhode Island. The Dig Safe notice goes in first, and the hole is dug to the plan.

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Site work with a dozer clearing and grading a lot behind a silt fence

Site Work

We take a raw lot to a cleared, graded site that is ready to build on. Land clearing, grading, erosion control and gravel access roads are all part of the work.

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Drainage systems work setting a corrugated culvert pipe across a gravel driveway

Drainage Systems

We build French drains, curtain drains, footing drains and dry wells for wet yards and basements across Rhode Island. Every job starts with where the water will go.

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Retaining walls of stacked block along a driveway with a mini excavator behind

Retaining Walls

Retaining walls in block and natural stone, plus walkways and outdoor stairs. We set each wall on a compacted base, with drainage stone behind it.

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Google Reviews

Rated 5.0 on Google Around North Kingstown

Real reviews of our septic and excavation work, 8 reviews on Google.

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South County Septic did an excellent job replacing our old septic system and leach-field. Michael surveyed the property, designed a new system, installed and worked with the RI DEM with no issues. I highly recommend this business.

Conner Marleya year ago · Google review

Michael was great! Picked up right away and was able to come within the hour to evaluate. Immediately got into motion additional resources we might need to come that day and solved the problem. Very informative and great to work with. Highly recommend.

Andrea McGregora year ago · Google review

Was referred out to Michael after an emergency waterline break that flooded our basement. He was there every step of the way and answered all the questions we had. Michael let us know what was happening during the process and could not have been happier with the outcome. Great price and great customer service! Highly recommend if anyone is in need of their services

Samantha Bomzera year ago · Google review

Michael was excellent. He replaced a main water mine to my rental property. Prompt, on time and does great work. I am someone who is extremely picky when hiring contractors for anything. He checked a lot of boxes when we first met answering questions and demonstrating his knowledge. Highly recommend!

Matt Reddya year ago · Google review

Great professionalism! Kept to expected deadlines

Erin Leonea year ago · Google review

Excellent service! Did very good and highly recommended!

Coventry FAQ

Questions We Hear Around Coventry

A few of the questions we hear most around Coventry. If yours is not here, call or text and ask.

Call (401) 474-8926

Is my Coventry home on the town sewer or a septic system?
If you pay a Coventry sewer use bill, your home is on the town sewer. The town bases that bill on water use and collects it through the Tax Collector. Without that bill, you most likely have a septic system or a cesspool. RIDEM's online permit search holds records for most septic systems from 1968 on.
Who approves a new septic system in Coventry?
RIDEM approves the plans before any septic system goes in, in Coventry or anywhere in Rhode Island. Coventry's sewer ordinance requires that approval before construction starts, with proof filed with the town. The Building Official issues building permits, and applications are filed online only. A building permit cannot be issued until RIDEM's written approvals are in hand.
What does septic system installation cost in Coventry?
In Coventry, much of the price comes from what the test holes find. The town's sewer plan names the depth to bedrock or groundwater as a price factor, along with lot size. Shallow ledge or wet till can mean a raised field with a pump. We look at the job and put the quote in writing.
I'm buying a Coventry home with a cesspool. What happens next?
Rhode Island's Cesspool Act requires replacing the cesspool, or tying into a sewer, within 12 months of the sale. The law does not say whether the buyer or the seller does it, so the two sides negotiate. On a sewered street, the town's ordinance bars a new septic system, so the home connects. Elsewhere, our cesspool replacement work runs from the test holes to RIDEM's Certificate of Conformance.
Does Coventry help homeowners pay for septic repairs?
Coventry takes part in the state's Community Septic System Loan Program, run through Rhode Island Housing. In 2024, Coventry's planning department announced 1 percent loans for owner-occupied homes with a failed system or cesspool. Sewer tie-ins qualify only where town sewer lines already run. Some restrictions apply, so the department has the current terms.
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Tell us what the job is and which town the property is in. Call or text (401) 474-8926 or use the form, and photos by text help.

  • Call or text (401) 474-8926
  • Serving North Kingstown, RI and the rest of Rhode Island
  • Written quotes · septic, sewer, excavation and drainage work

Request a Quote

Tell us about the septic, sewer, drainage or excavation job and where the property is. We look at the job and put the quote in writing.

Call (401) 474-8926