No health-based violations on EPA record since 2016.
Serves about 7,705 people (2,335 connections) with surface water bought from Redlands City MUD-Water Div and Yucaipa Valley Water District.
From EPA's record for CA3610053. PurityMap is independent of Western Heights Water Company.
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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 January 2025 to October 2025.
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| 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 | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-06 to 2025-10-06 | UCMR5 Analytical Results: WESTERN HEIGHTS WATER COMPANY (CA3610053) |
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 →Western Heights Water Company's phone number on EPA record is 909-790-1901. Its mailing address is 32352 AVENUE D, YUCAIPA, CA 92399.
According to EPA's record, Western Heights Water Company uses surface water bought from Redlands City MUD-Water Div and Yucaipa Valley Water District.
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 Western Heights Water Company's latest lead and copper round, which ended in December 2026. The federal action level is 15 µg/L.
PurityMap has no verified website for Western Heights Water Company. Its phone number on EPA record is 909-790-1901. Its mailing address on EPA record is 32352 AVENUE D, YUCAIPA, CA 92399. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.