No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2024.
Serves about 326 people (190 connections) with groundwater from its own wells, and buys water from Enid.
From EPA's record for OK2004402. PurityMap is independent of Cleo Springs.
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12 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2024 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
| From October 2023 | Nitrate + Nitrite | 13 mg/L | – | Resolved |
| From July 2023 | Nitrate + Nitrite | 13 mg/L | – | Resolved |
| From April 2023 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
| From January 2023 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2022 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
| From July 2022 | Nitrate + Nitrite | 13 mg/L | – | Resolved |
| From April 2022 | Nitrate + Nitrite | 11 mg/L | – | Resolved |
| From January 2022 | Nitrate + Nitrite | 11 mg/L | – | Resolved |
| From October 2021 | Nitrate + Nitrite | 11 mg/L | – | Resolved |
| From October 2020 | Nitrate + Nitrite | 15 mg/L | – | Resolved |
| From January 2019 | Nitrate + Nitrite | 12 mg/L | – | Resolved |
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 →Cleo Springs's phone number on EPA record is 580-438-2243. Its mailing address is David Matsko, Mayor, P.O. Box 297, CLEO SPRINGS, OK 73729.
According to EPA's record, Cleo Springs uses groundwater from its own wells, and buys water from Enid.
EPA's record shows 12 health-based violations for Cleo Springs in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting January 2024. EPA also lists 6 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Cleo Springs's latest lead and copper round, which ended in December 2025, was 2.6 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Cleo Springs. Its phone number on EPA record is 580-438-2243. Its mailing address on EPA record is David Matsko, Mayor, P.O. Box 297, CLEO SPRINGS, OK 73729. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.