No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2022.
Serves about 7,227 people (2,386 connections) with surface water from its own intake.
From EPA's record for CA0310002. PurityMap is independent of Water system CA0310002.
The mailing address and phone number are not shown for this system.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2017 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to November 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| 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 | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-05 to 2024-11-05 | UCMR5 Analytical Results: Water system CA0310002 (CA0310002) |
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 →According to EPA's record, Water system CA0310002 uses surface water from its own intake.
EPA's record shows 2 health-based violations for Water system CA0310002 in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2022. 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 Water system CA0310002'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 Water system CA0310002. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.