No health-based violations on EPA record since 2016.
Serves about 6,997 people (2,529 connections) with surface water bought from City of Orange and East Orange County WD.
From EPA's record for CA3010047. PurityMap is independent of Golden State WC.
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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 2025 to October 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 58.9 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorobutanoic acid (PFBA) | 6.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoropentanoic acid (PFPeA) | 7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| 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 | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-14 to 2025-10-27 | UCMR5 Analytical Results: GOLDEN STATE WC - COWAN HEIGHTS (CA3010047) |
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 WC's phone number on EPA record is 310-890-2804. Its mailing address is 2281 E. Via Burton, ANAHEIM, CA 92806.
According to EPA's record, Golden State WC uses surface water bought from City of Orange and East Orange County WD.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Golden State WC's latest lead and copper round, which ended in December 2025, was 8.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Golden State WC. Its phone number on EPA record is 310-890-2804. Its mailing address on EPA record is 2281 E. Via Burton, ANAHEIM, CA 92806. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.