Community Water System · PWSID CT0570011

Aquarion-Greenwich

Serves 53,297 peopleSurface WaterOwner: PrivateShelton, Connecticut
Nothing open right now.

On record since 2006: 56 violations. 1 treatment lapse · 53 missed or late tests · 2 notices or reports. Most recent began 2024-06-01.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
1Treatment lapse
53Missed or late test
2Notice or report

More violations on record than 92% of active water systems in Connecticut. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052006 · Notice or report: 1201020152018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Missed or late test: 512018 · Notice or report: 12019 · Missed or late test: 120202023 · Treatment lapse: 12024 · Missed or late test: 12025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
2% treatment lapse · 195% missed or late test · 534% notice or report · 2

Across Connecticut, 76% of violations are missed or late tests and 1% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 24 results on file · action level 15 ppb

2.2 ppb
2 ppb
2 ppb
1 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2024-06-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  2. 2023-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2019-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  4. 2018-10-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
  5. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2018-01-01n-PropylbenzeneMonitoring, RegularBack in compliance
  7. 2018-01-01o-XyleneMonitoring, RegularBack in compliance
  8. 2018-01-01StyreneMonitoring, RegularBack in compliance
  9. 2018-01-01m-XyleneMonitoring, RegularBack in compliance
  10. 2018-01-01BromobenzeneMonitoring, RegularBack in compliance
  11. 2018-01-01EthylbenzeneMonitoring, RegularBack in compliance
  12. 2018-01-01TolueneMonitoring, RegularBack in compliance
  13. 2018-01-01BenzeneMonitoring, RegularBack in compliance
  14. 2018-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  15. 2018-01-011,1,2,2-TetrachloroethaneMonitoring, RegularBack in compliance
  16. 2018-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  17. 2018-01-011,1,1,2-TetrachloroethaneMonitoring, RegularBack in compliance
  18. 2018-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  19. 2018-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  20. 2018-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  21. 2018-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  22. 2018-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  23. 2018-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  24. 2018-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  25. 2018-01-011,1-DichloroethaneMonitoring, RegularBack in compliance
Show the other 30 entries
  1. 2018-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  2. 2018-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  3. 2018-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  4. 2018-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  5. 2018-01-01m-DichlorobenzeneMonitoring, RegularBack in compliance
  6. 2018-01-01p-ChlorotolueneMonitoring, RegularBack in compliance
  7. 2018-01-01o-ChlorotolueneMonitoring, RegularBack in compliance
  8. 2018-01-01DichloromethaneMonitoring, RegularBack in compliance
  9. 2018-01-01p-XyleneMonitoring, RegularBack in compliance
  10. 2018-01-01DibromochloromethaneMonitoring, RegularBack in compliance
  11. 2018-01-01BromodichloromethaneMonitoring, RegularBack in compliance
  12. 2018-01-01BromoformMonitoring, RegularBack in compliance
  13. 2018-01-01ChloroformMonitoring, RegularBack in compliance
  14. 2018-01-011,3,5-TrimethylbenzeneMonitoring, RegularBack in compliance
  15. 2018-01-01n-ButylbenzeneMonitoring, RegularBack in compliance
  16. 2018-01-011,2,4-TrimethylbenzeneMonitoring, RegularBack in compliance
  17. 2018-01-012,2-DichloropropaneMonitoring, RegularBack in compliance
  18. 2018-01-011,2,3-TrichloropropaneMonitoring, RegularBack in compliance
  19. 2018-01-011, 3-DichloropropeneMonitoring, RegularBack in compliance
  20. 2018-01-011,3-DichloropropaneMonitoring, RegularBack in compliance
  21. 2018-01-011,1-DichloropropeneMonitoring, RegularBack in compliance
  22. 2018-01-01DibromomethaneMonitoring, RegularBack in compliance
  23. 2018-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  24. 2018-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  25. 2018-01-01Methyl Tert-Butyl EtherMonitoring, RegularBack in compliance
  26. 2018-01-01NaphthaleneMonitoring, RegularBack in compliance
  27. 2018-01-01ChloroethaneMonitoring, RegularBack in compliance
  28. 2018-01-01BromomethaneMonitoring, RegularBack in compliance
  29. 2018-01-01ChloromethaneMonitoring, RegularBack in compliance
  30. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served53,297
Service connections17,060
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityShelton
EPA ZIP on file06484

Areas served

  • Fairfield County

Reading this record

Aquarion-Greenwich is a community water system that draws from surface water and serves about 53,297 people in Shelton, Connecticut. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.