No health-based violations on EPA record since 2016.
Serves about 9,900 people (969 connections) with groundwater from its own wells, and buys water from East Dillon WD.
From EPA's record for CO0159105. PurityMap is independent of Snake River WD.
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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 April 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 22 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorooctanoic acid (PFOA) | 5.8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorohexanesulfonic acid (PFHxS) | 13 ng/L | 10 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorobutanesulfonic acid (PFBS) | 6.6 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorohexanoic acid (PFHxA) | 6.3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoroheptanoic acid (PFHpA) | 4.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoropentanoic acid (PFPeA) | 8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| 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 | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-11 | UCMR5 Analytical Results: SNAKE RIVER WD (CO0159105) |
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 →Snake River WD's phone number on EPA record is 970-468-0328. Its mailing address is 0050 ORO GRANDE DR, KEYSTONE, CO 80435.
According to EPA's record, Snake River WD uses groundwater from its own wells, and buys water from East Dillon WD.
No health-based violations on EPA record since 2016. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Snake River WD's latest lead and copper round, which ended in December 2025, was 0.9 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Snake River WD. Its phone number on EPA record is 970-468-0328. Its mailing address on EPA record is 0050 ORO GRANDE DR, KEYSTONE, CO 80435. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.