New London and Groton sewage backup cleanup

When storms and high tides coincide, sewer lines near the water can fill and push sewage back into basements. A backwater valve can help ^[2].

Saturated leach fields and full tanks cause septic backups. A septic contractor pumps and inspects; the restorer cleans.

Sewage is the most contaminated category ^[1]. Keep people out and let the crew clean and disinfect before drying ^[3].

Anyone who touched sewage should wash thoroughly with soap and clean water and cover any cuts. Keep children, older adults and anyone with a weak immune system away from the area. Throw out food, medicine and cosmetics the backup touched, and seek medical advice for stomach illness or an infected wound after exposure. Wash clothing that was only splashed in hot water separately, and discard soft items that were soaked.

Keep pets out until the crew confirms cleaning is finished.

Outlying homes in these towns may use septic. Full tanks, clogged baffles and leach fields saturated by rain or high groundwater near the shore cause backups. Pump and inspect the system, limit water use while it recovers and keep roof runoff away from the leach field.

Say where the sewage came up, how far it spread, whether you are on sewer or septic, whether it was raining or a storm tide and whether the cause has been cleared.

A camera inspection of the lateral shows roots, cracks and sags. A backwater valve on the main line closes when water flows the wrong way and can protect low-lying basements during storms and high tides. Ask a plumber whether one suits your house and whether a permit is required. Basement bathrooms below the sewer line need an ejector pump with an alarm. On septic, regular pumping and keeping runoff away from the leach field matter most.

Never flush wipes or pour grease down drains, even in a house that has never backed up.

During cleanup, plastic sheeting and negative air machines keep contaminated air in the work area. Keep doors closed and avoid the area in household shoes until cleaning is finished.

Removal usually takes a day, cleaning and disinfection follow, then several days of drying. Expect the area to be out of use for about a week.

In low parts of New London, Groton and Norwich near the water, the worst backups come when heavy rain coincides with a high tide or storm surge. Sewer lines that normally drain toward the shore cannot discharge, and water backs up into the lowest connected basements. If your backups line up with storms and tides, a backwater valve is the most direct protection, and keeping valuables off the basement floor during storm season limits losses. Report repeated backups to the local sewer authority as well.

Treat any water that came up a drain during a storm as sewage.

Photograph the drain, the water level and every affected item before cleanup, and note the date, rainfall and tide if a storm was involved. Many policies cover backups only with a water backup endorsement.

Pour water into rarely used floor drains every few weeks so the trap stays full and blocks sewer gas.

Once the area is clean, disinfected and dry, rebuild with materials that clean easily and tolerate water, such as tile or vinyl floors and moisture-resistant wall panels. Keep the floor drain clear of storage, add an alarm to any ejector pit and, if storms and tides caused the backup, install a backwater valve before finishing the walls. Keep the plumber's report and cleanup records together.

A short written summary from the crew of what was removed and disinfected helps with the claim and any future sale.

Resume water use only after the line is cleared or the storm and tide have passed and drains flow normally. Start small and watch the lowest drain.

If a lower-level bathroom overflows inside living space, move anyone sleeping there upstairs and keep the room closed until it has been cleaned, disinfected and dried.

Slow drains throughout the house, gurgling toilets when a washer drains, a sewer smell in the basement and, on septic, soggy ground over the leach field are early warnings. Call a plumber or septic contractor before the line or system fails. Near the shore, pay particular attention during storm season, when high water makes a struggling line more likely to back up into the house.

Keep children and pets out of the area until cleaning and disinfection are confirmed. Wash any toys or pet bedding that were nearby in hot water and discard soft toys that were soaked.

A smell after cleanup usually means a dry drain trap or a missed porous item. Pour water into floor drains and ask the crew to recheck any area that still smells.

The crew contains the area, extracts liquid and solids, removes soaked porous materials, cleans hard surfaces with detergent, disinfects and only then dries. Doing it in that order matters: disinfectants work poorly on dirty surfaces, and drying contaminated material in place spreads the problem. Contaminated debris is bagged and removed quickly so it does not sit in the house or garage.

When the water came from both the street sewer and a storm surge at once, everything it touched is treated as sewage.

Older homes in New London and Norwich connect to the street through laterals that may be decades old, cracked and full of roots. A plumber's camera inspection shows whether cleaning, lining or replacement is needed.

Hard, non-porous items can usually be cleaned and disinfected. Soaked carpet, mattresses, upholstered furniture, paper and cardboard are generally discarded. Photograph everything for the claim.