No health-based violations on EPA record since 2016.
Serves about 12,255 people (4,357 connections) with groundwater from its own wells.
From EPA's record for NV0000270. PurityMap is independent of Great Basin Water Company.
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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 January 2024.
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2024-01-08 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2024-01-08 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| 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 | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2024-01-08 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2024-01-08 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-04 to 2023-10-02 | UCMR5 Analytical Results: GREAT BASIN WATER COMPANY (NV0000270) |
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 →Great Basin Water Company's phone number on EPA record is 775-727-5575. Its mailing address is 1240 EAST STATE STREET STE 115, PAHRUMP, NV 89048.
According to EPA's record, Great Basin Water Company uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Great Basin Water Company's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Great Basin Water Company. Its phone number on EPA record is 775-727-5575. Its mailing address on EPA record is 1240 EAST STATE STREET STE 115, PAHRUMP, NV 89048. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.