No health-based violations on EPA record since 2016.
Serves about 4,739 people (1,795 connections) with groundwater from its own wells.
From EPA's record for MS0580004. PurityMap is independent of Oak Hill Water Assn.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from June 2024 to December 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 99 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-17 to 2024-12-17 | UCMR5 Analytical Results: OAK HILL WATER ASSN (MS0580004) |
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 →Oak Hill Water Assn's phone number on EPA record is 662-489-3692. Its mailing address is 189 REEDER HILL RD, PONTOTOC, MS 38863.
According to EPA's record, Oak Hill Water Assn uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Oak Hill Water Assn's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for Oak Hill Water Assn. Its phone number on EPA record is 662-489-3692. Its mailing address on EPA record is 189 REEDER HILL RD, PONTOTOC, MS 38863. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.