No health-based violations on EPA record since 2016.
Serves about 4,345 people (1,612 connections) with groundwater from its own wells.
From EPA's record for NV0000920. PurityMap is independent of Mountain Falls Water System GBWC.
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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 February 2023 to November 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-08-15 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-10-23 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-10-23 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| 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 | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-10-23 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-10-23 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-15 to 2023-11-20 | UCMR5 Analytical Results: MOUNTAIN FALLS WATER SYSTEM GBWC (NV0000920) |
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 →Mountain Falls Water System GBWC'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, Mountain Falls Water System GBWC 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 Mountain Falls Water System GBWC'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 Mountain Falls Water System GBWC. 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.