No health-based violations on EPA record since 2016.
Serves about 4,426 people (1,975 connections) with groundwater from its own wells, and buys water from College of the Ozarks.
From EPA's record for MO5010374. PurityMap is independent of Hollister PWS.
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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 January 2023 to July 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| 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 | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-16 to 2023-07-17 | UCMR5 Analytical Results: HOLLISTER PWS (MO5010374) |
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 →Hollister PWS's phone number on EPA record is 417-334-3262. Its mailing address is 312 ESPLANADE ST, PO BOX 638, HOLLISTER, MO 65673-0000.
According to EPA's record, Hollister PWS uses groundwater from its own wells, and buys water from College of the Ozarks.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Hollister PWS's latest lead and copper round, which ended in December 2025, was 1.04 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Hollister PWS. Its phone number on EPA record is 417-334-3262. Its mailing address on EPA record is 312 ESPLANADE ST, PO BOX 638, HOLLISTER, MO 65673-0000. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.