Community Water System · PWSID WI1330077

South Wayne Waterworks

Serves 478 peopleGroundwaterOwner: Local GovernmentSouth Wayne, Wisconsin
Nothing open right now.

On record since 1993: 24 violations. 23 missed or late tests · 1 notice or report. Most recent began 2025-04-01.

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
0Treatment lapse
23Missed or late test
1Notice or report

More violations on record than 98% of active water systems in Wisconsin. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1993 · Missed or late test: 119952000200520102012 · Missed or late test: 1201520202021 · Notice or report: 12025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
96% missed or late test · 234% notice or report · 1

Across Wisconsin, 54% of violations are missed or late tests and 5% 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 3 results on file · action level 15 ppb

1.3 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-04-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2025-04-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2025-04-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-04-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-04-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-04-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-04-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-04-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2025-04-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-04-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-04-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-04-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2025-04-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2025-04-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2025-04-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2025-04-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2025-04-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2025-04-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2025-04-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2025-04-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2025-04-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2021-09-11Groundwater RuleNotification, StateBack in compliance
  23. 2012-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  24. 1993-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served478
Service connections177
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CitySouth Wayne
EPA ZIP on file53587

Areas served

  • South Wayne, Lafayette County

Reading this record

South Wayne Waterworks is a community water system that draws from groundwater and serves about 478 people in South Wayne, Wisconsin. 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.