No health-based violations on EPA record since 2016.
Serves about 6,208 people (1,956 connections) with groundwater from its own wells, and buys water from Liberty Utilities (Av Ranchos) Corp..
From EPA's record for CA3610107. PurityMap is independent of Golden State Water Co.
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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 May 2025 to November 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 21.6 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| 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 | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-20 to 2025-11-10 | UCMR5 Analytical Results: GOLDEN STATE WATER CO - APPLE VLY SOUTH (CA3610107) |
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 →Golden State Water Co's phone number on EPA record is 310-848-5505. Its mailing address is 13608 HITT ROAD, APPLE VALLEY, CA 92308.
According to EPA's record, Golden State Water Co uses groundwater from its own wells, and buys water from Liberty Utilities (Av Ranchos) Corp..
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 Golden State Water Co'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 Golden State Water Co. Its phone number on EPA record is 310-848-5505. Its mailing address on EPA record is 13608 HITT ROAD, APPLE VALLEY, CA 92308. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.