Community Water System · PWSID OK3006108

Pittsburg Co. Rwd #7 (Arpelar)

Serves 2,040 peopleSurface Water PurchasedOwner: Local GovernmentMcalester, Oklahoma
Nothing open right now.

On record since 1979: 62 violations. 44 over the limit · 1 treatment lapse · 14 missed or late tests · 3 notices or reports. Most recent began 2024-10-17.

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

44Over the limit
1Treatment lapse
14Missed or late test
3Notice or report

More violations on record than 74% of active water systems in Oklahoma. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1979 · Missed or late test: 31979 · Missed or late test: 31979 · Missed or late test: 319801983 · Missed or late test: 119851989 · Missed or late test: 119901991 · Missed or late test: 119951996 · Over the limit: 11996 · Missed or late test: 12000200520102012 · Notice or report: 12013 · Over the limit: 12014 · Over the limit: 32014 · Over the limit: 32014 · Over the limit: 32014 · Notice or report: 12015 · Over the limit: 32015 · Over the limit: 32015 · Over the limit: 320152016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42018 · Over the limit: 12019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Missed or late test: 12020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Missed or late test: 22020 · Missed or late test: 220202021 · Over the limit: 32021 · Over the limit: 32021 · Over the limit: 32021 · Missed or late test: 12022 · Over the limit: 72022 · Over the limit: 72022 · Over the limit: 72022 · Over the limit: 72022 · Over the limit: 72022 · Over the limit: 72022 · Over the limit: 72022 · Missed or late test: 22022 · Missed or late test: 22023 · Over the limit: 22023 · Over the limit: 22023 · Missed or late test: 12024 · Treatment lapse: 12024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
71% over the limit · 442% treatment lapse · 123% missed or late test · 145% notice or report · 3

Across Oklahoma, 73% of violations are missed or late tests and 19% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)Total Haloacetic Acids (HAA5)2023-01-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2023-01-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2022-10-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2022-10-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2022-07-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2022-07-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2022-04-01 · Trihalomethanes (TTHM): measured 0.0920 MG/L vs limit 0.0800 MG/L (1.1×)2022-04-01 · Trihalomethanes (TTHM): measured 0.0930 MG/L vs limit 0.0800 MG/L (1.2×)2022-01-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2021-10-01 · Trihalomethanes (TTHM): measured 0.1100 MG/L vs limit 0.0800 MG/L (1.4×)2021-07-01 · Trihalomethanes (TTHM): measured 0.1400 MG/L vs limit 0.0800 MG/L (1.8×)2021-01-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)2020-10-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2020-10-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2020-07-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2020-07-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2020-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2020-04-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2020-01-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2020-01-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2019-10-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)2019-10-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2019-07-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2019-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2019-04-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2019-04-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2018-01-01 · Total Haloacetic Acids (HAA5): measured 0.0630 MG/L vs limit 0.0600 MG/L (1.1×)2017-04-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2017-04-01 · Total Haloacetic Acids (HAA5): measured 0.0630 MG/L vs limit 0.0600 MG/L (1.1×)2017-01-01 · Trihalomethanes (TTHM): measured 0.1000 MG/L vs limit 0.0800 MG/L (1.2×)2017-01-01 · Total Haloacetic Acids (HAA5): measured 0.0610 MG/L vs limit 0.0600 MG/L (1.0×)2016-10-01 · Trihalomethanes (TTHM): measured 0.0980 MG/L vs limit 0.0800 MG/L (1.2×)2016-07-01 · Trihalomethanes (TTHM): measured 0.1080 MG/L vs limit 0.0800 MG/L (1.3×)2016-04-01 · Trihalomethanes (TTHM): measured 0.0990 MG/L vs limit 0.0800 MG/L (1.2×)2016-04-01 · Total Haloacetic Acids (HAA5): measured 0.0660 MG/L vs limit 0.0600 MG/L (1.1×)2016-01-01 · Trihalomethanes (TTHM): measured 0.0960 MG/L vs limit 0.0800 MG/L (1.2×)2015-10-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2015-07-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2015-01-01 · Trihalomethanes (TTHM): measured 0.0970 MG/L vs limit 0.0800 MG/L (1.2×)2014-10-01 · Trihalomethanes (TTHM): measured 0.1090 MG/L vs limit 0.0800 MG/L (1.4×)2014-07-01 · Trihalomethanes (TTHM): measured 0.1300 MG/L vs limit 0.0800 MG/L (1.6×)2014-04-01 · Trihalomethanes (TTHM): measured 0.1310 MG/L vs limit 0.0800 MG/L (1.6×)2013-10-01 · Trihalomethanes (TTHM): measured 0.1210 MG/L vs limit 0.0800 MG/L (1.5×)
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

4.4 ppb
2.3 ppb
0 ppb

Every violation on record

  1. 2024-10-17Lead service line inventoryRPTBack in compliance
  2. 2024-10-17Lead service line inventoryTTBack in compliance
  3. 2023-04-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  4. 2023-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0850 MG/L · limit 0.0800 MG/LBack in compliance
  5. 2022-12-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  6. 2022-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  7. 2022-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0810 MG/L · limit 0.0800 MG/LBack in compliance
  8. 2022-09-29Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  9. 2022-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  10. 2022-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0920 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  11. 2022-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  12. 2021-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1100 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  13. 2021-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1400 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  14. 2021-04-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  15. 2021-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  16. 2020-12-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  17. 2020-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  18. 2020-09-29Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  19. 2020-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  20. 2020-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  21. 2020-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  22. 2019-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0870 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  23. 2019-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0910 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  24. 2019-06-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  25. 2019-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
Show the other 27 entries
  1. 2018-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0630 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  2. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0910 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  3. 2017-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0630 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  4. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1000 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  5. 2017-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0610 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  6. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0980 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  7. 2016-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1080 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  8. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0990 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  9. 2016-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0660 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  10. 2016-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0960 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  11. 2015-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
  12. 2015-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LBack in compliance
  13. 2015-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0970 MG/L · limit 0.0800 MG/LBack in compliance
  14. 2014-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1090 MG/L · limit 0.0800 MG/LBack in compliance
  15. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2014-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1300 MG/L · limit 0.0800 MG/LBack in compliance
  17. 2014-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1310 MG/L · limit 0.0800 MG/LBack in compliance
  18. 2013-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1210 MG/L · limit 0.0800 MG/LBack in compliance
  19. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 1996-06-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  21. 1996-05-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  22. 1991-08-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  23. 1989-03-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  24. 1983-10-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  25. 1979-12-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  26. 1979-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  27. 1979-10-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance

System details

Population served2,040
Service connections1,053
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityMcalester
EPA ZIP on file74501

Areas served

  • Pittsburg County

Reading this record

Pittsburg Co. Rwd #7 (Arpelar) is a community water system that draws from surface water purchased and serves about 2,040 people in Mcalester, Oklahoma. 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.