No health-based violations on EPA record since 2016.
Serves about 6,158 people (1,860 connections) with groundwater from its own wells, and buys water from San Gabriel Valley Water Co.-El Monte and La Puente Valley CWD.
From EPA's record for CA1910029. PurityMap is independent of City of Industry Waterworks Systems.
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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 June 2023 to December 2023.
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-06-22 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-22 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-22 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| 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 | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-22 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-06-22 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-12 to 2023-12-07 | UCMR5 Analytical Results: CITY OF INDUSTRY WATERWORKS SYSTEMS (CA1910029) |
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 →City of Industry Waterworks Systems's phone number on EPA record is 626-330-2126. Its mailing address is 112 N. FIRST STREET, LA PUENTE, CA 91744.
According to EPA's record, City of Industry Waterworks Systems uses groundwater from its own wells, and buys water from San Gabriel Valley Water Co.-El Monte and La Puente Valley CWD.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in City of Industry Waterworks Systems'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 City of Industry Waterworks Systems. Its phone number on EPA record is 626-330-2126. Its mailing address on EPA record is 112 N. FIRST STREET, LA PUENTE, CA 91744. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.