Community Water System · PWSID KY0540936

Madisonville Light & Water

Serves 28,102 peopleSurface WaterOwner: Local GovernmentSedalia, Kentucky
Nothing open right now.

On record since 2001: 12 violations. 5 over the limit · 3 missed or late tests · 4 notices or reports. Most recent began 2021-09-01.

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

5Over the limit
0Treatment lapse
3Missed or late test
4Notice or report

More violations on record than 64% of active water systems in Kentucky. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2001 · Notice or report: 12004 · Notice or report: 12005201020152016 · Over the limit: 22016 · Over the limit: 22016 · Missed or late test: 22016 · Missed or late test: 22016 · Notice or report: 12017 · Over the limit: 22017 · Over the limit: 22017 · Missed or late test: 12018 · Notice or report: 120202021 · Over the limit: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
42% over the limit · 525% missed or late test · 333% notice or report · 4

Across Kentucky, 52% of violations are missed or late tests and 13% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2017-04-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2017-01-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2016-10-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2016-07-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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

0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2021-09-01Revised Total Coliform RuleMCLBack in compliance
  2. 2018-07-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2017-04-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  4. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0850 MG/L · limit 0.0800 MG/LBack in compliance
  5. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2016-10-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  7. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0880 MG/L · limit 0.0800 MG/LBack in compliance
  8. 2016-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  9. 2016-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LBack in compliance
  10. 2016-01-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  11. 2004-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  12. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served28,102
Service connections10,413
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CitySedalia
EPA ZIP on file42508

Areas served

  • Hopkins County

Reading this record

Madisonville Light & Water is a community water system that draws from surface water and serves about 28,102 people in Sedalia, Kentucky. 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.