No health-based violations on EPA record since 2016.
Serves about 168,843 people (40,299 connections) with surface water bought from City of Pomona, Walnut Valley Water District, Valley County Water Dist. and 4 more.
From EPA's record for CA1910205. PurityMap is independent of Suburban Water Systems-San Jose.
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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 July 2024 to April 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 54 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorobutanesulfonic acid (PFBS) | 3.6 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorohexanoic acid (PFHxA) | 3.3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorobutanoic acid (PFBA) | 6.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoropentanoic acid (PFPeA) | 3.5 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| 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 | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-18 to 2025-04-10 | UCMR5 Analytical Results: SUBURBAN WATER SYSTEMS-SAN JOSE (CA1910205) |
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 →Suburban Water Systems-San Jose's phone number on EPA record is 626-543-2532. Its mailing address is 1325 N. GRAND AVENUE SUITE 100, COVINA, CA 91724.
According to EPA's record, Suburban Water Systems-San Jose uses surface water bought from City of Pomona, Walnut Valley Water District, Valley County Water Dist. and 4 more.
No health-based violations on EPA record since 2016. 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 Suburban Water Systems-San Jose'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 Suburban Water Systems-San Jose. Its phone number on EPA record is 626-543-2532. Its mailing address on EPA record is 1325 N. GRAND AVENUE SUITE 100, COVINA, CA 91724. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.