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Public water system record

Cherokee Co. RWD #8 (Briggs)

Serves Briggs, Eldon and Sparrowhawk, Cherokee County, OK · 413 people served

Federal records show 1 health-based violation and 14 monitoring/reporting issues for Cherokee Co. RWD #8 (Briggs) in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • OK3001118
  • TAHLEQUAH
  • OK
  • 413 served

System profile

Source water Purchased surface water
ZIP 74464
EPA system ID OK3001118

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
14

Key facts

  • Cherokee Co. RWD #8 (Briggs) buys its water from Tahlequah PWA.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Oklahoma, June 2022.
  • Record on file since 1993, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 260 unknown out of 515 service lines.

Check whether Cherokee Co. RWD #8 (Briggs) 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 0.083 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Apr 1, 2022 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
 Jul 1, 2025 Resolved
Chlorine
Monitoring and reporting
 Jul 1, 2025 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Active
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Mar 31, 2024 Resolved
Chlorine
Monitoring and reporting
 Apr 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Feb 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Feb 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Dec 30, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Aug 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Aug 1, 2021 Resolved
Chlorine
Monitoring and reporting
 Jul 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
 Nov 1, 2019 Resolved
Chlorine
Monitoring and reporting
 Oct 1, 2019 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2016 Resolved

Full record since 1993

EPA's records for Cherokee Co. RWD #8 (Briggs) go back to 1993. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 23 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 0 4
2010 to October 18, 2016 6 18
October 19, 2016 to 2019 0 2
2020s 1 11

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2015, Resolved.

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2013 Resolved

Enforcement actions

Oklahoma regulators took 10 formal enforcement actions against Cherokee Co. RWD #8 (Briggs) between 1994 and 2022. The most recent was a compliance order (no penalty) in June 2022.

Date By Action Violations covered
Jun 29, 2022 Oklahoma Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Oct 7, 2015 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 19, 2015 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Apr 9, 2015 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Dec 31, 2014 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Sep 8, 2014 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
May 14, 2014 Oklahoma Compliance order with a penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Aug 28, 2012 Oklahoma Compliance order with a penalty 2 violations: Consumer Confidence Rule
Jul 30, 2001 Oklahoma Compliance order with a penalty 4 violations: Lead and Copper Rule
Oct 31, 1994 Oklahoma Compliance order (no penalty) 1 violation: Lead and Copper Rule

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Cherokee Co. RWD #8 (Briggs) buys its water from Tahlequah PWA. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Cherokee Co. RWD #8 (Briggs) 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 Cherokee Co. RWD #8 (Briggs) 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