Public water system record

Barnsdall

Serves an area of Osage County, OK · 1,243 people served

Federal records show 170 health-based violations and 72 monitoring/reporting issues for Barnsdall in the last ten years. The most serious issue in this window was a CARBON, TOTAL violation that EPA lists as archived, not resolved.

  • OK1021304
  • BARNSDALL
  • OK
  • 1,243 served

System profile

Source water Surface water
ZIP 74002
EPA system ID OK1021304

Verify this system on EPA ECHO →

Health-based violations, last 10 years
170
Resolved
2
Unresolved
0
Archived by EPA
168
Any acute record
Yes
Monitoring issues, last 10 years
72

Key facts

  • Barnsdall draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.19 mg/L, federal limit 0.06 mg/L (3.2 times the limit), 2020.
  • Most recent formal enforcement: compliance order with a penalty by Oklahoma, June 2021.
  • Record on file since 1991, with 164 health-based violations before October 19, 2016.
  • Lead pipe inventory: 1 lead and 1 unknown out of 502 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Resolved No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.114 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
220 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.119 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
220 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.132 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
220 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.13 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
220 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
220 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
220 Apr 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.124 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
220 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.127 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
220 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
220 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2021 Resolved Yes
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.113 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
220 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
220 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.114 mg/L, federal limit 0.06 mg/L (1.9 times the limit)
220 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.146 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.06 mg/L (2.6 times the limit)
220 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.148 mg/L, federal limit 0.06 mg/L (2.5 times the limit)
220 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.146 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.149 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
220 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.158 mg/L, federal limit 0.06 mg/L (2.6 times the limit)
220 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.164 mg/L, federal limit 0.06 mg/L (2.7 times the limit)
220 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.163 mg/L, federal limit 0.08 mg/L (2 times the limit)
220 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.167 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
220 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.19 mg/L, federal limit 0.06 mg/L (3.2 times the limit)
220 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.189 mg/L, federal limit 0.06 mg/L (3.2 times the limit)
220 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.141 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.158 mg/L, federal limit 0.06 mg/L (2.6 times the limit)
220 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.16 mg/L, federal limit 0.06 mg/L (2.7 times the limit)
220 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.117 mg/L, federal limit 0.06 mg/L (2 times the limit)
220 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.06 mg/L (2 times the limit)
220 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.06 mg/L (1.8 times the limit)
220 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.06 mg/L (1.8 times the limit)
220 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.071 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
220 Apr 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.079 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
220 Jul 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.078 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
220 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.129 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
220 Apr 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
220 Jan 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.14 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
220 Jan 1, 2018 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.138 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
220 Oct 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Oct 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
220 Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.101 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
220 Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Apr 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.158 mg/L, federal limit 0.08 mg/L (2 times the limit)
220 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
220 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
CARBON, TOTAL
Treatment technique failure
210 Oct 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.172 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
220 Oct 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
220 Oct 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 29, 2025 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 29, 2025 Active
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jun 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Mar 31, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Feb 29, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Feb 29, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 30, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Dec 30, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2023 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 29, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 29, 2023 Resolved
CARBON, TOTAL
Monitoring and reporting
Jul 1, 2023 Resolved
CARBON, TOTAL
Monitoring and reporting
Jul 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2022 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2022 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Apr 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2019 Resolved
CARBON, TOTAL
Monitoring and reporting
Apr 1, 2019 Resolved
CARBON, TOTAL
Monitoring and reporting
Apr 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2019 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Dec 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2018 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Apr 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2018 Resolved
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Dec 30, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Dec 30, 2017 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2017 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
CARBON, TOTAL
Monitoring and reporting
Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
Apr 1, 2017 Active
Enforcement action in place
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2017 Active
Enforcement action in place
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
Mar 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Mar 1, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jun 30, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jun 30, 2016 Resolved
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2016 Resolved

Full record since 1991

EPA's records for Barnsdall go back to 1991. Before October 19, 2016 they list 164 health-based violations (86 resolved, 78 archived by EPA without a recorded fix) and 41 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 34 1
2000s 62 10
2010 to October 18, 2016 68 30
October 19, 2016 to 2019 55 43
2020s 112 26

Most recent health-based violation before October 19, 2016: CARBON, TOTAL, began October 2016, Archived.

Show all 164 health-based violations before October 19, 2016
Contaminant Start date Status
CARBON, TOTAL
Treatment technique failure
Oct 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.172 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
Oct 1, 2016 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
Oct 1, 2016 Archived
CARBON, TOTAL
Treatment technique failure
Jul 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.22 mg/L, federal limit 0.08 mg/L (2.8 times the limit)
Jul 1, 2016 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
Jul 1, 2016 Archived
CARBON, TOTAL
Treatment technique failure
Apr 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.195 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
Apr 1, 2016 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
Apr 1, 2016 Archived
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2016 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.192 mg/L, federal limit 0.08 mg/L (2.4 times the limit)
Jan 1, 2016 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
Jan 1, 2016 Archived
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2015 Resolved
CARBON, TOTAL
Treatment technique failure
Oct 1, 2015 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.174 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
Oct 1, 2015 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.169 mg/L, federal limit 0.06 mg/L (2.8 times the limit)
Oct 1, 2015 Archived
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2015 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2015 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.167 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
Jul 1, 2015 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
Jul 1, 2015 Archived
CARBON, TOTAL
Treatment technique failure
Apr 1, 2015 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.11 mg/L, federal limit 0.06 mg/L (1.8 times the limit)
Apr 1, 2015 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Apr 1, 2015 Archived
CARBON, TOTAL
Treatment technique failure
Jan 1, 2015 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
Jan 1, 2015 Archived
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
Jan 1, 2015 Archived
CARBON, TOTAL
Treatment technique failure
Oct 1, 2014 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
Oct 1, 2014 Archived
CARBON, TOTAL
Treatment technique failure
Jul 1, 2014 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
Jul 1, 2014 Archived
CARBON, TOTAL
Treatment technique failure
Apr 1, 2014 Archived
CARBON, TOTAL
Treatment technique failure
Jan 1, 2014 Archived
CARBON, TOTAL
Treatment technique failure
Oct 1, 2013 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.146 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
Jul 1, 2013 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2013 Archived
CARBON, TOTAL
Treatment technique failure
Apr 1, 2013 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
Apr 1, 2013 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2013 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
Jan 1, 2013 Resolved
CARBON, TOTAL
Treatment technique failure
Oct 1, 2012 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.132 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
Oct 1, 2012 Resolved
CARBON, TOTAL
Treatment technique failure
Jul 1, 2012 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.11 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
Jul 1, 2012 Resolved
CARBON, TOTAL
Treatment technique failure
Apr 1, 2012 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
Apr 1, 2012 Resolved
CARBON, TOTAL
Treatment technique failure
Jan 1, 2012 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.132 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
Jan 1, 2012 Resolved
CARBON, TOTAL
Treatment technique failure
Oct 1, 2011 Archived

114 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Oklahoma regulators took 53 formal enforcement actions against Barnsdall and issued 2 boil water orders between 1993 and 2021, filed as 60 records in EPA's data. The most recent was a compliance order with a penalty in June 2021.

Date By Action Violations covered
Jun 2, 2021 Oklahoma Compliance order with a penalty 503 violations (448 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5), Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule
May 28, 2021 Oklahoma Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Nov 12, 2020 Oklahoma Compliance order (no penalty) 11 violations (11 health-based): Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule
Dec 5, 2019 Oklahoma Compliance order (no penalty) 5 violations (5 health-based): Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule
Sep 3, 2019 Oklahoma Compliance order (no penalty) 7 violations (7 health-based): Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule
May 15, 2019 Oklahoma Compliance order (no penalty) 3 violations (1 health-based): Interim Enhanced Surface Water Treatment Rule
May 6, 2019 Oklahoma Compliance order (no penalty) 2 violations (1 health-based): Interim Enhanced Surface Water Treatment Rule
May 1, 2019 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Feb 22, 2019 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Oct 19, 2018 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule
May 26, 2016 Oklahoma Compliance order with a penalty 138 violations (138 health-based): Total Trihalomethanes (TTHMs), Surface Water Treatment Rule, Haloacetic Acids (HAA5), CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule
Mar 9, 2016 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL
Feb 11, 2016 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Feb 5, 2016 Oklahoma Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Dec 2, 2015 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Haloacetic Acids (HAA5), CARBON, TOTAL, Total Trihalomethanes (TTHMs)
Oct 26, 2015 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Interim Enhanced Surface Water Treatment Rule
Sep 9, 2015 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5)
Jun 4, 2015 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL
Mar 11, 2015 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL
Oct 29, 2014 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL
Apr 18, 2013 Oklahoma Compliance order with a penalty 2 violations: Lead and Copper Rule
May 20, 2011 Oklahoma Compliance order with a penalty 94 violations (91 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule
Sep 21, 2010 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Sep 25, 2009 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Jul 23, 2009 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Dec 6, 2007 Oklahoma Compliance order with a penalty 4 violations (3 health-based): Haloacetic Acids (HAA5), CARBON, TOTAL, Total Trihalomethanes (TTHMs)
Dec 3, 2007 Oklahoma Compliance order with a penalty 2 violations (2 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs)
Jul 12, 2007 Oklahoma Compliance order with a penalty 1 violation: Nitrate-Nitrite
May 2, 2007 Oklahoma Compliance order with a penalty 5 violations (3 health-based): CARBON, TOTAL, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Feb 15, 2007 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs), CARBON, TOTAL, Haloacetic Acids (HAA5)
Nov 9, 2006 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL
Oct 5, 2006 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), CARBON, TOTAL
Sep 13, 2006 Oklahoma Compliance order with a penalty 3 violations (3 health-based): CARBON, TOTAL, Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
Apr 11, 2006 Oklahoma Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), CARBON, TOTAL
Mar 20, 2006 Oklahoma Compliance order (no penalty) 103 violations (99 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), CARBON, TOTAL, Chlorine
Jan 10, 2006 Oklahoma Compliance order with a penalty 1 violation: Chlorine
Jan 4, 2006 Oklahoma Compliance order with a penalty 6 violations (6 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), CARBON, TOTAL
Dec 8, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Sep 7, 2005 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Mar 21, 2005 Oklahoma Compliance order with a penalty 3 violations (3 health-based): CARBON, TOTAL, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Jan 11, 2005 Oklahoma Compliance order with a penalty 2 violations (2 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
May 20, 1997 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Dec 17, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Jun 17, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
May 20, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Apr 17, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Mar 26, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Feb 20, 1996 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Oct 18, 1995 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Sep 27, 1995 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule

5 older actions are not listed here. EPA ECHO has the complete list.

What the violations mean

Total Trihalomethanes (TTHMs)

47 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

40 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

CARBON, TOTAL

36 incidents

The system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).

The utility had to notify customers about each of these violations.

Interim Enhanced Surface Water Treatment Rule

24 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Surface Water Treatment Rule

22 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Barnsdall draws water from 1 surface water intake. 1 other community water system buys water from Barnsdall.

Community systems that buy water from it

Annual water quality report

Barnsdall must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Oklahoma.