Haloacetic acids (HAA5) above the legal limit in the period starting October 2025.
Serves about 2,400 people (856 connections) with surface water bought from Muskogee Municipal Authority and Wagoner Co. RWD #5.
From EPA's record for OK3007306. PurityMap is independent of Porter PWA.
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36 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2025 | Haloacetic acids (HAA5) | 0.066 mg/L | 0.060 mg/L | Archived |
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.083 mg/L | 0.080 mg/L | Archived |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.082 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.089 mg/L | 0.080 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.097 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2023 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.093 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2022 | Total trihalomethanes (TTHM) | 0.087 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2021 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2020 | Haloacetic acids (HAA5) | 0.083 mg/L | 0.060 mg/L | Resolved |
| Apr–Jun 2020 | Total trihalomethanes (TTHM) | 0.089 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2020 | Total trihalomethanes (TTHM) | 0.094 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2020 | Haloacetic acids (HAA5) | 0.096 mg/L | 0.060 mg/L | Resolved |
| Oct–Dec 2019 | Total trihalomethanes (TTHM) | 0.11 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2019 | Haloacetic acids (HAA5) | 0.119 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2019 | Total trihalomethanes (TTHM) | 0.121 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2019 | Haloacetic acids (HAA5) | 0.095 mg/L | 0.060 mg/L | Resolved |
| Apr–Jun 2019 | Total trihalomethanes (TTHM) | 0.109 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2019 | Haloacetic acids (HAA5) | 0.085 mg/L | 0.060 mg/L | Resolved |
| Jan–Mar 2019 | Total trihalomethanes (TTHM) | 0.101 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2019 | Haloacetic acids (HAA5) | 0.078 mg/L | 0.060 mg/L | Resolved |
| Oct–Dec 2018 | Total trihalomethanes (TTHM) | 0.09 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2018 | Total trihalomethanes (TTHM) | 0.09 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.
Get PurityMap updates about this water system.
Follow this water →Porter PWA's phone number on EPA record is 918-407-1651. Its mailing address is Mr. Steve Dickey, P.O. Box 149, PORTER, OK 74454.
According to EPA's record, Porter PWA uses surface water bought from Muskogee Municipal Authority and Wagoner Co. RWD #5.
EPA's record shows 36 health-based violations for Porter PWA in the 10 years to July 9, 2026. Haloacetic acids (HAA5) were above the legal limit in the period starting October 2025. EPA also lists 12 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Porter PWA's latest lead and copper round, which ended in December 2025, was 1.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Porter PWA. Its phone number on EPA record is 918-407-1651. Its mailing address on EPA record is Mr. Steve Dickey, P.O. Box 149, PORTER, OK 74454. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.