Drinking water quality · 2026
· Verified
What's in San Jacinto, City of, CA tap water
33 contaminants were measured in the San Jacinto, City of, CA water system's 2026 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2026
- Contaminants measured
- 33
- Over federal limit
- 2
- Approaching the limit
- 0
- Worst contaminant
- Manganese
- Service area
- CA
Where your water comes from · EPA SDWIS
San Jacinto, City of, CA's drinking water comes from ground water, drawn from 3 sources.
Source
- WELL 10 BATH STREET
- ARTESIA WELL
- LAKE PARK WELL
Treatment
- BATH TREATMENT PLANT EFFLUENT - TREATED
- BATH RESERVOIR - TREATED
- ARTESIA WELL - CL XCLD
- + 2 more
Distribution
Also buys water from EASTERN MUNICIPAL WD.
Historical readings · EPA Six-Year Review (2012–2019)
2 contaminants historically over EPA limits in San Jacinto, City of, CA
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
HAA5 worst: 2014 | 0.071 mg/L 1.2× | 0.06 mg/L | '14'15'18'19 |
TTHM worst: 2014 | 0.091 mg/L 1.1× | 0.08 mg/L | '14'15'16'18'19 |
FLUORIDE worst: 2013 | 0.6 mg/L within | 4 mg/L | '13'16'19 |
BARIUM worst: 2013 | 0.19 mg/L within near national p90 | 2 mg/L | '13'16'19 |
URANIUM worst: 2013 | 0.00168 ug/L within below national p90 | 30 ug/L | '13 |
TCAA worst: 2014 | 0.039 mg/L | — | '14'15'18'19 |
DBAA worst: 2014 | 0.0034 mg/L | — | '14'15'16'18'19 |
DCAA worst: 2014 | 0.023 mg/L | — | '14'15'16'18'19 |
MBAA worst: 2014 | 0.0041 mg/L | — | '14'15'19 |
MCAA worst: 2014 | 0.023 mg/L | — | '14'15 |
BROMODICHLOROMETHANE worst: 2014 | 0.025 mg/L | — | '14'15'16'18'19 |
BROMOFORM worst: 2014 | 0.0061 mg/L | — | '14'15'16'18'19 |
CHLOROFORM worst: 2014 | 0.053 mg/L | — | '14'15'16'18'19 |
DIBROMOCHLOROMETHANE worst: 2014 | 0.011 mg/L | — | '14'15'16'18'19 |
Metals
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid, a chlorinated PFAS compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)ADONA, a newer-generation PFAS replacement compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 4:2 Fluorotelomer sulfonic acid (4:2 FTS)4:2 fluorotelomer sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 6:2 Fluorotelomer sulfonic acid (6:2 FTS)6:2 fluorotelomer sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 8:2 Fluorotelomer sulfonic acid (8:2 FTS)8:2 fluorotelomer sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid, a chlorinated PFAS compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Hexafluoropropylene oxide dimer acidHFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoro-3-methoxypropanoic acid (PFMPA)Perfluoro-3-methoxypropanoic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoro-4-methoxybutanoic acid (PFMBA)Perfluoro-4-methoxybutanoic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)Perfluoro(2-ethoxyethane)sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluorodecanoic acid (PFDA)Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluorododecanoic acid (PFDoA)Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoroheptanesulfonic acid (PFHpS)Perfluoroheptanesulfonic acid, a PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoropentanesulfonic acid (PFPeS)Perfluoropentanesulfonic acid, a PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoropentanoic acidPerfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoroundecanoic acid (PFUnA)Perfluoroundecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
People also ask about San Jacinto, City of, CA's water
+Is San Jacinto, City of, CA tap water safe to drink in 2026?
The 2026 Consumer Confidence Report for the San Jacinto, City of, CA water utility lists 2 contaminants at or above the federal limit: Manganese and Iron. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in San Jacinto, City of, CA tap water?
33 contaminants were measured in San Jacinto, City of, CA's 2026 Consumer Confidence Report, spanning pfas ("forever chemicals"), disinfection byproducts, and other. 4 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in San Jacinto, City of, CA tap water?
2 contaminants in San Jacinto, City of, CA's 2026 report sit at or above the federal limit: Manganese (3.0× the limit); Iron (1.7× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in San Jacinto, City of, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2026 report is Manganese, at 3.0× the federal threshold. It belongs to the metals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from San Jacinto, City of, CA's 2026 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is San Jacinto, City of, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2026 report; a new report will replace it once the utility publishes its next annual update.