No open EPA violations as of 2026-10-15.
EPA record checked 2026-10-06
From EPA's record for CA3610041. PurityMap is independent of Fontana Water Company.
Every community water system publishes one each year.
Read the report ↗As listed in EPA's records. Your water bill names your supplier.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.
Are you this utility? Correct this listing →
32 results are on record. These 5 come first: results above a listed reference.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Water hardness | 8.3 gpg | Aesthetic, no federal health limit | Above a secondary/aesthetic reference | 2025 | Fontana Water Company (FWC) 2025 Consumer Confidence Report (CCR) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2022–2024 monitoring period | Lead & Copper Rule 90th-percentile: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| 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 | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-05 to 2024-03-01 | UCMR5 Analytical Results: SAN GABRIEL VALLEY WC - FONTANA (CA3610041) |
0health-based violations in the last 10 years · none open as of 2026-10-15
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit. Meeting a federal limit is a compliance fact, not a health clearance.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
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.
Tested your own tap? Read your results →
Local help
A local plumber can look at your home and install a water softener or whole-home system.
One email when a new sampling round is published or a result moves across its reference.
Follow this water →Its official website is fontanawater.com, its phone number on EPA record is 909-201-7330 and its mailing address is P.O. Box 987, FONTANA, CA 92334. These details come from the system's EPA record and a check of its website.
Bills, starting service and stopping service are handled by Fontana Water Company on its official website, fontanawater.com. PurityMap does not take payments.
EPA's records list Fontana Water Company as serving Fontana, California. Your water bill names your supplier.
PurityMap's record for Fontana Water Company holds results for 29 PFAS substances. None was detected, and none is above a federal legal limit. Each result links to its source in the city report.
No open EPA violations as of 2026-10-15: that is what EPA's record shows for Fontana Water Company. The record comes from EPA's SDWIS compliance database.
Fontana Water Company is on EPA record as drawing from surface water.
Start with the hot-or-cold tap check. Where Fontana Water Company reported something related, it's shown below.
Lead at Fontana Water Company: not detected (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.