Total trihalomethanes (TTHM) above the legal limit in the period starting October 2025.
Serves about 3,262 people (1,624 connections) with surface water from its own intake, and buys water from Lone Chimney Water Association.
From EPA's record for OK1021210. PurityMap is independent of Cleveland Municipal Authority.
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119 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2025 | Total trihalomethanes (TTHM) | 0.132 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2025 | Total trihalomethanes (TTHM) | 0.147 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.14 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.155 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.167 mg/L | 0.080 mg/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.189 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2025 | Haloacetic acids (HAA5) | 0.068 mg/L | 0.060 mg/L | Archived |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 0.165 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 0.19 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2025 | Haloacetic acids (HAA5) | 0.076 mg/L | 0.060 mg/L | Archived |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.199 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.171 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2024 | Haloacetic acids (HAA5) | 0.071 mg/L | 0.060 mg/L | Archived |
| From July 2024 | Carbon, total | 0.91 RATIO | TT | Archived |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.2 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.171 mg/L | 0.080 mg/L | Archived |
| From April 2024 | Carbon, total | 0.95 RATIO | TT | Archived |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.193 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.171 mg/L | 0.080 mg/L | Archived |
| From January 2024 | Carbon, total | 0.93 RATIO | TT | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.199 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.179 mg/L | 0.080 mg/L | Archived |
| From October 2023 | Carbon, total | 0.91 RATIO | TT | Archived |
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.204 mg/L | 0.080 mg/L | Archived |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →Cleveland Municipal Authority's phone number on EPA record is 918-645-4292. Its mailing address is Chris Gabriel, Mayor, P.O. BOX 190, CLEVELAND, OK 74020-0190.
According to EPA's record, Cleveland Municipal Authority uses surface water from its own intake, and buys water from Lone Chimney Water Association.
EPA's record shows 119 health-based violations for Cleveland Municipal Authority in the 10 years to July 9, 2026. Total trihalomethanes (TTHM) were above the legal limit in the period starting October 2025. EPA also lists 20 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Cleveland Municipal Authority's latest lead and copper round, which ended in December 2025, was 4.6 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Cleveland Municipal Authority. Its phone number on EPA record is 918-645-4292. Its mailing address on EPA record is Chris Gabriel, Mayor, P.O. BOX 190, CLEVELAND, OK 74020-0190. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.