Nitrate + Nitrite above the legal limit in the period starting January 2026.
Serves about 375 people (254 connections) with surface water bought from Frederick.
From EPA's record for OK2007104. PurityMap is independent of Davidson.
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14 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2026 | Nitrate + Nitrite | 12 mg/L | – | Archived |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.131 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
| From July 2022 | Nitrate + Nitrite | 17 mg/L | – | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From April 2022 | Nitrate + Nitrite | 11 mg/L | – | Resolved |
| From July 2021 | Nitrate + Nitrite | 19 mg/L | – | Resolved |
| From January 2020 | Nitrate + Nitrite | 13 mg/L | – | Resolved |
| From July 2019 | Nitrate + Nitrite | 18 mg/L | – | Resolved |
| Oct–Dec 2018 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2018 | Total trihalomethanes (TTHM) | 0.089 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2018 | Total trihalomethanes (TTHM) | 0.09 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2018 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2017 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 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 →Davidson's phone number on EPA record is 580-568-2600. Its mailing address is The Honorable Craig Gaines, Mayor, P.O. BOX 308, DAVIDSON, OK 73530-0308.
According to EPA's record, Davidson uses surface water bought from Frederick.
EPA's record shows 14 health-based violations for Davidson in the 10 years to July 9, 2026. Nitrate + Nitrite was above the legal limit in the period starting January 2026. EPA also lists 32 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Davidson's latest lead and copper round, which ended in December 2025, was 6.44 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Davidson. Its phone number on EPA record is 580-568-2600. Its mailing address on EPA record is The Honorable Craig Gaines, Mayor, P.O. BOX 308, DAVIDSON, OK 73530-0308. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.