No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2025.
Serves about 350 people (131 connections) with surface water bought from Copan PWA.
From EPA's record for OK1021410. PurityMap is independent of Osage Co RWD #20 (Hulah).
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85 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.133 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2025 | Haloacetic acids (HAA5) | 0.13 mg/L | 0.060 mg/L | Archived |
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.118 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2025 | Haloacetic acids (HAA5) | 0.116 mg/L | 0.060 mg/L | Archived |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 0.122 mg/L | 0.080 mg/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jan–Mar 2025 | Haloacetic acids (HAA5) | 0.118 mg/L | 0.060 mg/L | Archived |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.109 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2024 | Haloacetic acids (HAA5) | 0.094 mg/L | 0.060 mg/L | Archived |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.107 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.107 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.107 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.096 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.118 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2023 | Total trihalomethanes (TTHM) | 0.179 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2023 | Haloacetic acids (HAA5) | 0.129 mg/L | 0.060 mg/L | Archived |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.188 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2022 | Haloacetic acids (HAA5) | 0.156 mg/L | 0.060 mg/L | Archived |
| From October 2022 | Carbon, total | 0.06 RATIO | TT | Resolved |
| From July 2022 | Interim Enhanced Surface Water Treatment Rule | – | – | Resolved |
| Jul–Sep 2022 | Total trihalomethanes (TTHM) | 0.224 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2022 | Haloacetic acids (HAA5) | 0.207 mg/L | 0.060 mg/L | Archived |
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.224 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2022 | Haloacetic acids (HAA5) | 0.21 mg/L | 0.060 mg/L | Archived |
| Jan–Mar 2022 | Total trihalomethanes (TTHM) | 0.221 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.
Get PurityMap updates about this water system.
Follow this water →Osage Co RWD #20 (Hulah)'s phone number on EPA record is 918-336-0008. Its mailing address is Laura Teague, Chairperson, 302 South Osage, BARTLESVILLE, OK 74003.
According to EPA's record, Osage Co RWD #20 (Hulah) uses surface water bought from Copan PWA.
EPA's record shows 85 health-based violations for Osage Co RWD #20 (Hulah) 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 July 2025. EPA also lists 14 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Osage Co RWD #20 (Hulah)'s latest lead and copper round, which ended in December 2025, was 3.7 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Osage Co RWD #20 (Hulah). Its phone number on EPA record is 918-336-0008. Its mailing address on EPA record is Laura Teague, Chairperson, 302 South Osage, BARTLESVILLE, OK 74003. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.