Community Water System · PWSID MI0004600

Nahma Township

Serves 95 peopleGroundwaterOwner: Local GovernmentNahma, Michigan
Nothing open right now.

On record since 2001: 46 violations. 13 over the limit · 1 treatment lapse · 21 missed or late tests · 11 notices or reports. Most recent began 2023-07-01.

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

13Over the limit
1Treatment lapse
21Missed or late test
11Notice or report

More violations on record than 98% of active water systems in Michigan. 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: 1200520102013 · Treatment lapse: 12013 · Missed or late test: 22013 · Missed or late test: 22015 · Missed or late test: 22015 · Missed or late test: 220152016 · Missed or late test: 42016 · Missed or late test: 42016 · Missed or late test: 42016 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Notice or report: 12018 · Missed or late test: 32018 · Missed or late test: 32018 · Missed or late test: 32018 · Notice or report: 22018 · Notice or report: 22019 · Missed or late test: 52019 · Missed or late test: 52019 · Missed or late test: 52019 · Missed or late test: 52019 · Missed or late test: 52020 · Over the limit: 22020 · Over the limit: 220202021 · Over the limit: 62021 · Over the limit: 62021 · Over the limit: 62021 · Over the limit: 62021 · Over the limit: 62021 · Over the limit: 62022 · Over the limit: 52022 · Over the limit: 52022 · Over the limit: 52022 · Over the limit: 52022 · Over the limit: 52022 · Notice or report: 62022 · Notice or report: 62022 · Notice or report: 62022 · Notice or report: 62022 · Notice or report: 62022 · Notice or report: 62023 · Missed or late test: 12023 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
28% over the limit · 132% treatment lapse · 146% missed or late test · 2124% notice or report · 11

Across Michigan, 91% of violations are missed or late tests and 3% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2022-07-01 · Total Haloacetic Acids (HAA5): measured 0.0660 MG/L vs limit 0.0600 MG/L (1.1×)2022-04-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2022-04-01 · Total Haloacetic Acids (HAA5): measured 0.0800 MG/L vs limit 0.0600 MG/L (1.3×)2022-01-01 · Total Haloacetic Acids (HAA5): measured 0.0940 MG/L vs limit 0.0600 MG/L (1.6×)2022-01-01 · Trihalomethanes (TTHM): measured 0.0920 MG/L vs limit 0.0800 MG/L (1.1×)2021-10-01 · Total Haloacetic Acids (HAA5): measured 0.1130 MG/L vs limit 0.0600 MG/L (1.9×)2021-10-01 · Trihalomethanes (TTHM): measured 0.1000 MG/L vs limit 0.0800 MG/L (1.2×)2021-07-01 · Total Haloacetic Acids (HAA5): measured 0.0990 MG/L vs limit 0.0600 MG/L (1.7×)2021-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2021-04-01 · Total Haloacetic Acids (HAA5): measured 0.0860 MG/L vs limit 0.0600 MG/L (1.4×)2021-01-01 · Total Haloacetic Acids (HAA5): measured 0.0790 MG/L vs limit 0.0600 MG/L (1.3×)2020-07-01 · Total Haloacetic Acids (HAA5): measured 0.0680 MG/L vs limit 0.0600 MG/L (1.1×)2020-04-01 · Total Haloacetic Acids (HAA5): measured 0.0800 MG/L vs limit 0.0600 MG/L (1.3×)
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.

Every violation on record

  1. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2023-04-01Revised Total Coliform RuleMONBack in compliance
  3. 2022-07-04Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  4. 2022-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0660 MG/L · limit 0.0600 MG/LBack in compliance
  5. 2022-04-03Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  6. 2022-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LBack in compliance
  7. 2022-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0800 MG/L · limit 0.0600 MG/LBack in compliance
  8. 2022-01-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  9. 2022-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0940 MG/L · limit 0.0600 MG/LBack in compliance
  10. 2022-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0920 MG/L · limit 0.0800 MG/LBack in compliance
  11. 2021-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1130 MG/L · limit 0.0600 MG/LBack in compliance
  12. 2021-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1000 MG/L · limit 0.0800 MG/LBack in compliance
  13. 2021-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0990 MG/L · limit 0.0600 MG/LBack in compliance
  14. 2021-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0880 MG/L · limit 0.0800 MG/LBack in compliance
  15. 2021-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0860 MG/L · limit 0.0600 MG/LBack in compliance
  16. 2021-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0790 MG/L · limit 0.0600 MG/LBack in compliance
  17. 2020-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0680 MG/L · limit 0.0600 MG/LBack in compliance
  18. 2020-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0800 MG/L · limit 0.0600 MG/LBack in compliance
  19. 2019-11-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2019-11-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2019-11-01Revised Total Coliform RuleMONBack in compliance
  22. 2019-02-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  23. 2019-02-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  24. 2018-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2018-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
Show the other 18 entries
  1. 2018-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  2. 2018-09-01Revised Total Coliform RuleRPTBack in compliance
  3. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  4. 2017-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  5. 2017-09-02Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  6. 2017-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  7. 2017-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  8. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  10. 2016-10-11Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  11. 2016-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  12. 2016-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  13. 2015-08-02Lead and Copper RuleLead Consumer NoticeBack in compliance
  14. 2015-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  15. 2013-03-13DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  16. 2013-01-01LeadMonitoring, RegularBack in compliance
  17. 2013-01-01Copper, FreeMonitoring, RegularBack in compliance
  18. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served95
Service connections62
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityNahma
EPA ZIP on file49864

Areas served

  • Nahma, Delta County

Reading this record

Nahma Township is a community water system that draws from groundwater and serves about 95 people in Nahma, Michigan. 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.