No health-based violations on EPA record since 2016.
Serves about 38,233 people (9,377 connections) with surface water bought from Metropolitan Water Dist. of So. Cal..
From EPA's record for CA1910030. PurityMap is independent of GSWC.
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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 November 2023 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 60 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| 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 | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-11-14 to 2024-08-14 | UCMR5 Analytical Results: GSWC - CULVER CITY (CA1910030) |
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 →GSWC's phone number on EPA record is 626-250-1517. Its mailing address is 12035 Burke St, Suite 1, SANTA FE SPRINGS, CA 90670.
According to EPA's record, GSWC uses surface water bought from Metropolitan Water Dist. of So. Cal..
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in GSWC's latest lead and copper round, which ended in December 2025, was 5.6 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for GSWC. Its phone number on EPA record is 626-250-1517. Its mailing address on EPA record is 12035 Burke St, Suite 1, SANTA FE SPRINGS, CA 90670. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.