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Public water system record

Nowata County RWD # 3

Serves an area of Nowata County, OK that includes Nowata · 225 people served

Federal records show 17 health-based violations and 2 monitoring/reporting issues for Nowata County RWD # 3 in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • OK3005302
  • NOWATA
  • OK
  • 225 served

System profile

Source water Purchased surface water
ZIP 74048
EPA system ID OK3005302

Verify this system on EPA ECHO →

Health-based violations, last 10 years
17
Resolved
17
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Nowata County RWD # 3 buys its water from Nowata Municipal Authority.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2023.
  • Most recent formal enforcement: compliance order with a penalty by Oklahoma, August 2022.
  • Record on file since 1991, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 48 unknown out of 102 service lines.

Check whether Nowata County RWD # 3 serves your address

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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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jul 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.112 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Apr 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2023 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Oct 1, 2022 Resolved 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 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Apr 1, 2022 Resolved 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, 2021 Resolved 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, 2021 Resolved 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 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Jan 1, 2021 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Oct 1, 2020 Resolved 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, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Jul 1, 2018 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jul 1, 2018 Resolved 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 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Dec 30, 2016 Resolved

Full record since 1991

EPA's records for Nowata County RWD # 3 go back to 1991. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1990s 2 0
2010 to October 18, 2016 4 1
October 19, 2016 to 2019 2 1
2020s 14 1

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2016 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Apr 1, 2015 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Jul 1, 1998 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Jul 1, 1991 Resolved

Enforcement actions

Oklahoma regulators took 9 formal enforcement actions against Nowata County RWD # 3 between 2015 and 2022. The most recent was a compliance order with a penalty in August 2022.

Date By Action Violations covered
Aug 19, 2022 Oklahoma Compliance order with a penalty 14 violations (14 health-based): Total Trihalomethanes (TTHMs)
Jan 10, 2022 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Nov 5, 2021 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Apr 9, 2021 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Nov 20, 2020 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
Oct 5, 2018 Oklahoma Compliance order (no penalty) 2 violations (2 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Mar 6, 2017 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jan 12, 2017 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Sep 3, 2015 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

16 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

1 incident

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Nowata County RWD # 3 buys its water from Nowata Municipal Authority. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Nowata County RWD # 3 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.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Nowata County RWD # 3 for a copy.

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.

Certified drinking water labs by state EPA guidance for private wells