Community Water System · PWSID MO4010456

Leadwood Pws

Serves 1,192 peopleGroundwaterOwner: Local GovernmentLeadwood, Missouri
Nothing open right now.

On record since 2002: 37 violations. 30 over the limit · 4 missed or late tests · 3 notices or reports. Most recent began 2025-07-01.

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

30Over the limit
0Treatment lapse
4Missed or late test
3Notice or report

More violations on record than 94% of active water systems in Missouri. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2002 · Notice or report: 12004 · Missed or late test: 1200520102013 · Notice or report: 22013 · Notice or report: 220152016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82016 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82017 · Over the limit: 82018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 420202023 · Missed or late test: 12024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Missed or late test: 12025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
81% over the limit · 3011% missed or late test · 48% notice or report · 3

Across Missouri, 54% of violations are missed or late tests and 8% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Combined Radium (-226 and...Gross Alpha, Excl. Radon and U2024-10-01 · Combined Radium (-226 and -228): measured 6.65 PCI/L vs limit 5.00 PCI/L (1.3×)2024-07-01 · Combined Radium (-226 and -228): measured 8.50 PCI/L vs limit 5.00 PCI/L (1.7×)2024-04-01 · Combined Radium (-226 and -228): measured 9.43 PCI/L vs limit 5.00 PCI/L (1.9×)2024-01-01 · Combined Radium (-226 and -228): measured 7.28 PCI/L vs limit 5.00 PCI/L (1.5×)2019-10-01 · Combined Radium (-226 and -228): measured 5.83 PCI/L vs limit 5.00 PCI/L (1.2×)2019-07-01 · Combined Radium (-226 and -228): measured 7.20 PCI/L vs limit 5.00 PCI/L (1.4×)2019-04-01 · Combined Radium (-226 and -228): measured 8.65 PCI/L vs limit 5.00 PCI/L (1.7×)2019-01-01 · Combined Radium (-226 and -228): measured 9.53 PCI/L vs limit 5.00 PCI/L (1.9×)2018-10-01 · Combined Radium (-226 and -228): measured 10.38 PCI/L vs limit 5.00 PCI/L (2.1×)2018-07-01 · Combined Radium (-226 and -228): measured 10.53 PCI/L vs limit 5.00 PCI/L (2.1×)2018-04-01 · Combined Radium (-226 and -228): measured 10.95 PCI/L vs limit 5.00 PCI/L (2.2×)2018-04-01 · Gross Alpha, Excl. Radon and U: measured 18.55 PCI/L vs limit 15.00 PCI/L (1.2×)2018-01-01 · Combined Radium (-226 and -228): measured 11.28 PCI/L vs limit 5.00 PCI/L (2.3×)2018-01-01 · Gross Alpha, Excl. Radon and U: measured 20.90 PCI/L vs limit 15.00 PCI/L (1.4×)2017-10-01 · Combined Radium (-226 and -228): measured 11.20 PCI/L vs limit 5.00 PCI/L (2.2×)2017-10-01 · Gross Alpha, Excl. Radon and U: measured 20.81 PCI/L vs limit 15.00 PCI/L (1.4×)2017-07-01 · Combined Radium (-226 and -228): measured 10.18 PCI/L vs limit 5.00 PCI/L (2.0×)2017-07-01 · Gross Alpha, Excl. Radon and U: measured 19.44 PCI/L vs limit 15.00 PCI/L (1.3×)2017-04-01 · Combined Radium (-226 and -228): measured 10.05 PCI/L vs limit 5.00 PCI/L (2.0×)2017-04-01 · Gross Alpha, Excl. Radon and U: measured 18.13 PCI/L vs limit 15.00 PCI/L (1.2×)2017-01-01 · Combined Radium (-226 and -228): measured 9.60 PCI/L vs limit 5.00 PCI/L (1.9×)2017-01-01 · Gross Alpha, Excl. Radon and U: measured 17.27 PCI/L vs limit 15.00 PCI/L (1.2×)2016-10-01 · Combined Radium (-226 and -228): measured 10.03 PCI/L vs limit 5.00 PCI/L (2.0×)2016-10-01 · Gross Alpha, Excl. Radon and U: measured 15.68 PCI/L vs limit 15.00 PCI/L (1.0×)2016-07-01 · Combined Radium (-226 and -228): measured 11.03 PCI/L vs limit 5.00 PCI/L (2.2×)2016-07-01 · Gross Alpha, Excl. Radon and U: measured 16.71 PCI/L vs limit 15.00 PCI/L (1.1×)2016-04-01 · Combined Radium (-226 and -228): measured 11.18 PCI/L vs limit 5.00 PCI/L (2.2×)2016-04-01 · Gross Alpha, Excl. Radon and U: measured 16.06 PCI/L vs limit 15.00 PCI/L (1.1×)2016-01-01 · Combined Radium (-226 and -228): measured 11.73 PCI/L vs limit 5.00 PCI/L (2.3×)2016-01-01 · Gross Alpha, Excl. Radon and U: measured 17.36 PCI/L vs limit 15.00 PCI/L (1.2×)
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 6 results on file · action level 15 ppb

6.3 ppb
6.3 ppb
5.1 ppb
3 ppb
3 ppb
1.1 ppb

Every violation on record

  1. 2025-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  2. 2024-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.65 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  3. 2024-08-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  4. 2024-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 8.50 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  5. 2024-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 9.43 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  6. 2024-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 7.28 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  7. 2023-08-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  8. 2019-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 5.83 PCI/L · limit 5.00 PCI/LBack in compliance
  9. 2019-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 7.20 PCI/L · limit 5.00 PCI/LBack in compliance
  10. 2019-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 8.65 PCI/L · limit 5.00 PCI/LBack in compliance
  11. 2019-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 9.53 PCI/L · limit 5.00 PCI/LBack in compliance
  12. 2018-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.38 PCI/L · limit 5.00 PCI/LBack in compliance
  13. 2018-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.53 PCI/L · limit 5.00 PCI/LBack in compliance
  14. 2018-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.95 PCI/L · limit 5.00 PCI/LBack in compliance
  15. 2018-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 18.55 PCI/L · limit 15.00 PCI/LBack in compliance
  16. 2018-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 11.28 PCI/L · limit 5.00 PCI/LBack in compliance
  17. 2018-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 20.90 PCI/L · limit 15.00 PCI/LBack in compliance
  18. 2017-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 11.20 PCI/L · limit 5.00 PCI/LBack in compliance
  19. 2017-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 20.81 PCI/L · limit 15.00 PCI/LBack in compliance
  20. 2017-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.18 PCI/L · limit 5.00 PCI/LBack in compliance
  21. 2017-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 19.44 PCI/L · limit 15.00 PCI/LBack in compliance
  22. 2017-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.05 PCI/L · limit 5.00 PCI/LBack in compliance
  23. 2017-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 18.13 PCI/L · limit 15.00 PCI/LBack in compliance
  24. 2017-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 9.60 PCI/L · limit 5.00 PCI/LBack in compliance
  25. 2017-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 17.27 PCI/L · limit 15.00 PCI/LBack in compliance
Show the other 12 entries
  1. 2016-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 10.03 PCI/L · limit 5.00 PCI/LBack in compliance
  2. 2016-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 15.68 PCI/L · limit 15.00 PCI/LBack in compliance
  3. 2016-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 11.03 PCI/L · limit 5.00 PCI/LBack in compliance
  4. 2016-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 16.71 PCI/L · limit 15.00 PCI/LBack in compliance
  5. 2016-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 11.18 PCI/L · limit 5.00 PCI/LBack in compliance
  6. 2016-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 16.06 PCI/L · limit 15.00 PCI/LBack in compliance
  7. 2016-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 11.73 PCI/L · limit 5.00 PCI/LBack in compliance
  8. 2016-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 17.36 PCI/L · limit 15.00 PCI/LBack in compliance
  9. 2013-08-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  11. 2004-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served1,192
Service connections437
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityLeadwood
EPA ZIP on file63653-0000

Areas served

  • Leadwood, St. Francois County

Reading this record

Leadwood Pws is a community water system that draws from groundwater and serves about 1,192 people in Leadwood, Missouri. 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.