Community Water System · PWSID OK3005721

Osage Co Rwd # 5

Serves 561 peopleSurface Water PurchasedOwner: Local GovernmentBarnsdall, Oklahoma
1 open treatment violation.

Open for: Lead service line inventory. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 1981: 125 violations. 95 over the limit · 1 treatment lapse · 28 missed or late tests · 1 notice or report. Most recent began 2025-04-01.

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

95Over the limit
1Treatment lapse1 open
28Missed or late test2 open
1Notice or report1 open

More violations on record than 89% 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

1981 · Missed or late test: 31981 · Missed or late test: 31982 · Missed or late test: 2198519901994 · Missed or late test: 119951999 · Missed or late test: 120002005201020152016 · 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: 82018 · Over the limit: 72018 · Over the limit: 72018 · Over the limit: 72018 · Over the limit: 72019 · Over the limit: 132019 · Over the limit: 132019 · Over the limit: 132019 · Over the limit: 132019 · Over the limit: 132019 · Over the limit: 132019 · Over the limit: 132020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Over the limit: 162020 · Missed or late test: 220202021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162021 · Over the limit: 162022 · Over the limit: 102022 · Over the limit: 102022 · Over the limit: 102022 · Over the limit: 102022 · Over the limit: 102023 · Over the limit: 72023 · Over the limit: 72023 · Over the limit: 72023 · Over the limit: 72023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62024 · Over the limit: 52024 · Over the limit: 52024 · Over the limit: 52024 · Treatment lapse: 12024 · Missed or late test: 112024 · Missed or late test: 112024 · Missed or late test: 112024 · Missed or late test: 112024 · Missed or late test: 112024 · Missed or late test: 112024 · Notice or report: 12025 · Over the limit: 52025 · Over the limit: 52025 · Over the limit: 52025 · Missed or late test: 22025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
76% over the limit · 95<1% treatment lapse · 122% missed or late test · 28<1% notice or report · 1

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)2025-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2025-04-01 · Trihalomethanes (TTHM): measured 0.1040 MG/L vs limit 0.0800 MG/L (1.3×)2025-04-01 · Total Haloacetic Acids (HAA5): measured 0.0730 MG/L vs limit 0.0600 MG/L (1.2×)2025-01-01 · Trihalomethanes (TTHM): measured 0.1050 MG/L vs limit 0.0800 MG/L (1.3×)2025-01-01 · Total Haloacetic Acids (HAA5): measured 0.0690 MG/L vs limit 0.0600 MG/L (1.2×)2024-10-01 · Trihalomethanes (TTHM): measured 0.1020 MG/L vs limit 0.0800 MG/L (1.3×)2024-10-01 · Total Haloacetic Acids (HAA5): measured 0.0720 MG/L vs limit 0.0600 MG/L (1.2×)2024-07-01 · Trihalomethanes (TTHM): measured 0.0960 MG/L vs limit 0.0800 MG/L (1.2×)2024-07-01 · Total Haloacetic Acids (HAA5): measured 0.0670 MG/L vs limit 0.0600 MG/L (1.1×)2024-04-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2023-10-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2023-07-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2023-07-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2023-04-01 · Trihalomethanes (TTHM): measured 0.1000 MG/L vs limit 0.0800 MG/L (1.2×)2023-04-01 · Trihalomethanes (TTHM): measured 0.1200 MG/L vs limit 0.0800 MG/L (1.5×)2023-01-01 · Trihalomethanes (TTHM): measured 0.1220 MG/L vs limit 0.0800 MG/L (1.5×)2023-01-01 · Trihalomethanes (TTHM): measured 0.0980 MG/L vs limit 0.0800 MG/L (1.2×)2022-10-01 · Trihalomethanes (TTHM): measured 0.1230 MG/L vs limit 0.0800 MG/L (1.5×)2022-10-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2022-07-01 · Trihalomethanes (TTHM): measured 0.1210 MG/L vs limit 0.0800 MG/L (1.5×)2022-07-01 · Trihalomethanes (TTHM): measured 0.0930 MG/L vs limit 0.0800 MG/L (1.2×)2022-04-01 · Trihalomethanes (TTHM): measured 0.0970 MG/L vs limit 0.0800 MG/L (1.2×)2022-04-01 · Trihalomethanes (TTHM): measured 0.1100 MG/L vs limit 0.0800 MG/L (1.4×)2022-04-01 · Total Haloacetic Acids (HAA5): measured 0.0760 MG/L vs limit 0.0600 MG/L (1.3×)2022-01-01 · Trihalomethanes (TTHM): measured 0.1060 MG/L vs limit 0.0800 MG/L (1.3×)2022-01-01 · Trihalomethanes (TTHM): measured 0.1160 MG/L vs limit 0.0800 MG/L (1.4×)2022-01-01 · Total Haloacetic Acids (HAA5): measured 0.1140 MG/L vs limit 0.0600 MG/L (1.9×)2021-10-01 · Trihalomethanes (TTHM): measured 0.1320 MG/L vs limit 0.0800 MG/L (1.7×)2021-10-01 · Trihalomethanes (TTHM): measured 0.1120 MG/L vs limit 0.0800 MG/L (1.4×)2021-10-01 · Total Haloacetic Acids (HAA5): measured 0.0870 MG/L vs limit 0.0600 MG/L (1.4×)2021-10-01 · Total Haloacetic Acids (HAA5): measured 0.1190 MG/L vs limit 0.0600 MG/L (2.0×)2021-07-01 · Trihalomethanes (TTHM): measured 0.1080 MG/L vs limit 0.0800 MG/L (1.3×)2021-07-01 · Trihalomethanes (TTHM): measured 0.1320 MG/L vs limit 0.0800 MG/L (1.7×)2021-07-01 · Total Haloacetic Acids (HAA5): measured 0.1230 MG/L vs limit 0.0600 MG/L (2.1×)2021-07-01 · Total Haloacetic Acids (HAA5): measured 0.1150 MG/L vs limit 0.0600 MG/L (1.9×)2021-04-01 · Trihalomethanes (TTHM): measured 0.1030 MG/L vs limit 0.0800 MG/L (1.3×)2021-04-01 · Trihalomethanes (TTHM): measured 0.1570 MG/L vs limit 0.0800 MG/L (2.0×)2021-04-01 · Total Haloacetic Acids (HAA5): measured 0.1190 MG/L vs limit 0.0600 MG/L (2.0×)2021-04-01 · Total Haloacetic Acids (HAA5): measured 0.1160 MG/L vs limit 0.0600 MG/L (1.9×)2021-01-01 · Trihalomethanes (TTHM): measured 0.1650 MG/L vs limit 0.0800 MG/L (2.1×)2021-01-01 · Trihalomethanes (TTHM): measured 0.1290 MG/L vs limit 0.0800 MG/L (1.6×)2021-01-01 · Total Haloacetic Acids (HAA5): measured 0.1450 MG/L vs limit 0.0600 MG/L (2.4×)2021-01-01 · Total Haloacetic Acids (HAA5): measured 0.1130 MG/L vs limit 0.0600 MG/L (1.9×)2020-10-01 · Trihalomethanes (TTHM): measured 0.1550 MG/L vs limit 0.0800 MG/L (1.9×)2020-10-01 · Trihalomethanes (TTHM): measured 0.1250 MG/L vs limit 0.0800 MG/L (1.6×)2020-10-01 · Total Haloacetic Acids (HAA5): measured 0.1070 MG/L vs limit 0.0600 MG/L (1.8×)2020-10-01 · Total Haloacetic Acids (HAA5): measured 0.1500 MG/L vs limit 0.0600 MG/L (2.5×)2020-07-01 · Trihalomethanes (TTHM): measured 0.1670 MG/L vs limit 0.0800 MG/L (2.1×)2020-07-01 · Trihalomethanes (TTHM): measured 0.1340 MG/L vs limit 0.0800 MG/L (1.7×)2020-07-01 · Total Haloacetic Acids (HAA5): measured 0.1310 MG/L vs limit 0.0600 MG/L (2.2×)2020-07-01 · Total Haloacetic Acids (HAA5): measured 0.1670 MG/L vs limit 0.0600 MG/L (2.8×)2020-04-01 · Trihalomethanes (TTHM): measured 0.1430 MG/L vs limit 0.0800 MG/L (1.8×)2020-04-01 · Trihalomethanes (TTHM): measured 0.1560 MG/L vs limit 0.0800 MG/L (1.9×)2020-04-01 · Total Haloacetic Acids (HAA5): measured 0.1300 MG/L vs limit 0.0600 MG/L (2.2×)2020-04-01 · Total Haloacetic Acids (HAA5): measured 0.1490 MG/L vs limit 0.0600 MG/L (2.5×)2020-01-01 · Trihalomethanes (TTHM): measured 0.1300 MG/L vs limit 0.0800 MG/L (1.6×)2020-01-01 · Trihalomethanes (TTHM): measured 0.1510 MG/L vs limit 0.0800 MG/L (1.9×)2020-01-01 · Total Haloacetic Acids (HAA5): measured 0.1180 MG/L vs limit 0.0600 MG/L (2.0×)2020-01-01 · Total Haloacetic Acids (HAA5): measured 0.1240 MG/L vs limit 0.0600 MG/L (2.1×)2019-10-01 · Trihalomethanes (TTHM): measured 0.1170 MG/L vs limit 0.0800 MG/L (1.5×)2019-10-01 · Trihalomethanes (TTHM): measured 0.1410 MG/L vs limit 0.0800 MG/L (1.8×)2019-10-01 · Total Haloacetic Acids (HAA5): measured 0.0850 MG/L vs limit 0.0600 MG/L (1.4×)2019-10-01 · Total Haloacetic Acids (HAA5): measured 0.0880 MG/L vs limit 0.0600 MG/L (1.5×)2019-07-01 · Trihalomethanes (TTHM): measured 0.1040 MG/L vs limit 0.0800 MG/L (1.3×)2019-07-01 · Trihalomethanes (TTHM): measured 0.1330 MG/L vs limit 0.0800 MG/L (1.7×)2019-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2019-04-01 · Trihalomethanes (TTHM): measured 0.1060 MG/L vs limit 0.0800 MG/L (1.3×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.0630 MG/L vs limit 0.0600 MG/L (1.1×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2019-01-01 · Trihalomethanes (TTHM): measured 0.1050 MG/L vs limit 0.0800 MG/L (1.3×)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0620 MG/L vs limit 0.0600 MG/L (1.0×)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0610 MG/L vs limit 0.0600 MG/L (1.0×)2018-10-01 · Total Haloacetic Acids (HAA5): measured 0.1010 MG/L vs limit 0.0600 MG/L (1.7×)2018-07-01 · Trihalomethanes (TTHM): measured 0.1260 MG/L vs limit 0.0800 MG/L (1.6×)2018-07-01 · Total Haloacetic Acids (HAA5): measured 0.0830 MG/L vs limit 0.0600 MG/L (1.4×)2018-04-01 · Total Haloacetic Acids (HAA5): measured 0.0760 MG/L vs limit 0.0600 MG/L (1.3×)2018-04-01 · Trihalomethanes (TTHM): measured 0.1410 MG/L vs limit 0.0800 MG/L (1.8×)2018-01-01 · Total Haloacetic Acids (HAA5): measured 0.0800 MG/L vs limit 0.0600 MG/L (1.3×)2018-01-01 · Trihalomethanes (TTHM): measured 0.1610 MG/L vs limit 0.0800 MG/L (2.0×)2017-10-01 · Trihalomethanes (TTHM): measured 0.1890 MG/L vs limit 0.0800 MG/L (2.4×)2017-10-01 · Total Haloacetic Acids (HAA5): measured 0.0970 MG/L vs limit 0.0600 MG/L (1.6×)2017-07-01 · Trihalomethanes (TTHM): measured 0.1570 MG/L vs limit 0.0800 MG/L (2.0×)2017-07-01 · Total Haloacetic Acids (HAA5): measured 0.0640 MG/L vs limit 0.0600 MG/L (1.1×)2017-04-01 · Trihalomethanes (TTHM): measured 0.1830 MG/L vs limit 0.0800 MG/L (2.3×)2017-04-01 · Total Haloacetic Acids (HAA5): measured 0.0620 MG/L vs limit 0.0600 MG/L (1.0×)2017-01-01 · Trihalomethanes (TTHM): measured 0.1580 MG/L vs limit 0.0800 MG/L (2.0×)2017-01-01 · Total Haloacetic Acids (HAA5): measured 0.0680 MG/L vs limit 0.0600 MG/L (1.1×)2016-10-01 · Total Haloacetic Acids (HAA5): measured 0.0960 MG/L vs limit 0.0600 MG/L (1.6×)2016-10-01 · Trihalomethanes (TTHM): measured 0.2460 MG/L vs limit 0.0800 MG/L (3.1×)2016-07-01 · Total Haloacetic Acids (HAA5): measured 0.1180 MG/L vs limit 0.0600 MG/L (2.0×)2016-07-01 · Trihalomethanes (TTHM): measured 0.2130 MG/L vs limit 0.0800 MG/L (2.7×)2016-04-01 · Trihalomethanes (TTHM): measured 0.2200 MG/L vs limit 0.0800 MG/L (2.8×)2016-04-01 · Total Haloacetic Acids (HAA5): measured 0.1470 MG/L vs limit 0.0600 MG/L (2.4×)2016-01-01 · Trihalomethanes (TTHM): measured 0.2030 MG/L vs limit 0.0800 MG/L (2.5×)2016-01-01 · Total Haloacetic Acids (HAA5): measured 0.0910 MG/L vs limit 0.0600 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

4.9 ppb
1.7 ppb
0 ppb

Open now (4)

  1. 2025-04-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptOpen
  2. 2025-04-01Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptOpen
  3. 2024-10-17Lead service line inventoryRPTOpen
  4. 2024-10-17Lead service line inventoryTTOpen

Every violation on record

  1. 2025-04-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptOpen
  2. 2025-04-01Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptOpen
  3. 2025-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  4. 2025-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0730 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  5. 2025-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1050 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  6. 2025-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0690 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  7. 2024-12-30Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  8. 2024-12-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  9. 2024-10-17Lead service line inventoryRPTOpen
  10. 2024-10-17Lead service line inventoryTTOpen
  11. 2024-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  12. 2024-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2024-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1020 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  14. 2024-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0720 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  15. 2024-09-29Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  16. 2024-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  17. 2024-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  18. 2024-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0960 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  19. 2024-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0670 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  20. 2024-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  21. 2024-02-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2024-02-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2024-02-01Revised Total Coliform RuleMONBack in compliance
  24. 2024-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2023-11-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
Show the other 70 entries
  1. 2023-11-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  2. 2023-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  3. 2023-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2023-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2023-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  6. 2023-05-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2023-05-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  8. 2023-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1000 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  9. 2023-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1220 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  10. 2022-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1230 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  11. 2022-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1210 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  12. 2022-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0970 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  13. 2022-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0760 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  14. 2022-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1060 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  15. 2022-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1140 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  16. 2021-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1320 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  17. 2021-10-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0870 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  18. 2021-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1080 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  19. 2021-07-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1230 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  20. 2021-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1030 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  21. 2021-04-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1190 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  22. 2021-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1650 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  23. 2021-01-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1450 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  24. 2020-11-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2020-11-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  26. 2020-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1550 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  27. 2020-10-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1070 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  28. 2020-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1670 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  29. 2020-07-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1310 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  30. 2020-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1430 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  31. 2020-04-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1300 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  32. 2020-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1300 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  33. 2020-01-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.1180 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  34. 2019-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1170 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  35. 2019-10-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0850 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  36. 2019-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.1040 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  37. 2019-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  38. 2019-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0630 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  39. 2019-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  40. 2019-01-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0620 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  41. 2018-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1010 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  42. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1260 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  43. 2018-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0830 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  44. 2018-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0760 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  45. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1410 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  46. 2018-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0800 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  47. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1610 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  48. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1890 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  49. 2017-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0970 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  50. 2017-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1570 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  51. 2017-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0640 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  52. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  53. 2017-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0620 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  54. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1580 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  55. 2017-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0680 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  56. 2016-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0960 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  57. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2460 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  58. 2016-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1180 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  59. 2016-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2130 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  60. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2200 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  61. 2016-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1470 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  62. 2016-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2030 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  63. 2016-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0910 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  64. 1999-03-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  65. 1994-08-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  66. 1982-02-28Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  67. 1982-01-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  68. 1981-12-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  69. 1981-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  70. 1981-10-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance

System details

Population served561
Service connections191
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityBarnsdall
EPA ZIP on file74002

Areas served

  • Osage County

Reading this record

Osage Co Rwd # 5 is a community water system that draws from surface water purchased and serves about 561 people in Barnsdall, 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.