Community Water System · PWSID 084690029

North Martin Water System

Serves 78 peopleGroundwater PurchasedOwner: Native AmericanPine Ridge, South Dakota
Nothing open right now.

On record since 2013: 21 violations. 6 over the limit · 1 treatment lapse · 13 missed or late tests · 1 notice or report. Most recent began 2022-10-07.

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

6Over the limit
1Treatment lapse
13Missed or late test
1Notice or report

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

The record, year by year

200520102013 · Notice or report: 12014 · Missed or late test: 32014 · Missed or late test: 32014 · Missed or late test: 320152017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42019 · Missed or late test: 12020 · Over the limit: 12020 · Missed or late test: 22020 · Missed or late test: 220202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Missed or late test: 22021 · Missed or late test: 22022 · Over the limit: 12022 · Treatment lapse: 12022 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
29% over the limit · 65% treatment lapse · 162% missed or late test · 135% notice or report · 1

Across South Dakota, 52% of violations are missed or late tests and 10% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Arsenic2022-01-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2021-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2021-07-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2021-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2020-10-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 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.

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

1 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2022-10-07Groundwater RuleFailure To Address DeficiencyBack in compliance
  2. 2022-01-01ArsenicMonitoring, RegularBack in compliance
  3. 2022-01-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  4. 2021-10-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  5. 2021-07-01ArsenicMonitoring, RegularBack in compliance
  6. 2021-07-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2021-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2021-01-01ArsenicMCL, Averagemeasured 0.0130 MG/LBack in compliance
  9. 2021-01-01ArsenicMonitoring, RegularBack in compliance
  10. 2020-10-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2020-04-01ArsenicMonitoring, RegularBack in compliance
  12. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  13. 2019-03-01Revised Total Coliform RuleMONBack in compliance
  14. 2017-01-01SodiumMonitoring, RegularBack in compliance
  15. 2017-01-01CyanideMonitoring, RegularBack in compliance
  16. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  17. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  18. 2014-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2014-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2014-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served78
Service connections13
Water sourceGroundwater Purchased
System typeCommunity Water System
OwnerNative American
StatusActive
CityPine Ridge
EPA ZIP on file57770

Areas served

    Reading this record

    North Martin Water System is a community water system that draws from groundwater purchased and serves about 78 people in Pine Ridge, South Dakota. 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.