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Tap water quality report

San Jacinto, CA

EPA monitoring detected 22 contaminants across the 3 water suppliers serving San Jacinto. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

3
water suppliers
22,450
people served
22
contaminants found
California rankings Lead in California PFAS in California

What was found in San Jacinto's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
500 µg/L 13%
of the EPA limit 4000 µg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
Highest in the city: 4700 µg/L — GOLDEN ERA PRODUCTIONS · 500 people · 2019
3/3 SYR4
Nitrate
2100 µg/L 21%
of the EPA limit 10000 µg/L
Highest in the city: Soboba · 3,000 people · 2019
2/3 SYR4
Barium
181 µg/L 9%
of the EPA limit 2000 µg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
3/3 SYR4
TTHM
66.5 µg/L 83%
of the EPA limit 80 µg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
40.35 µg/L 67%
of the EPA limit 60 µg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
3/3 SYR4
Selenium
36 µg/L 72%
of the EPA limit 50 µg/L
Highest in the city: GOLDEN ERA PRODUCTIONS · 500 people · 2019
1/3 SYR4
Chloroform
32.8 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
2/3 SYR4
Trichloroacetic Acid
32.4 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
2/3 SYR4
Bromodichloromethane
21 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Dichloroacetic Acid
17 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
2/3 SYR4
Monochloroacetic Acid
14.55 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Dibromochloromethane
12 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Bromoform
6.48 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Gross Alpha, Excl. Radon And U
5.4043 pCi/L 36%
of the EPA limit 15 pCi/L
Highest in the city: Soboba · 3,000 people · 2019
1/3 SYR4
Combined Uranium
1.6837 µg/L 5.6%
of the EPA limit 30 µg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2013
Highest in the city: 4.4619 µg/L — Soboba · 3,000 people · 2019
2/3 SYR4
Dibromoacetic Acid
4.13 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Monobromoacetic Acid
3.33 µg/L
No EPA limit set
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2019
1/3 SYR4
Combined Radium (-226 And -228)
2.83005 pCi/L 57%
of the EPA limit 5 pCi/L
Highest in the city: Soboba · 3,000 people · 2019
1/3 SYR4
Chromium
2.7 µg/L 2.7%
of the EPA limit 100 µg/L
Highest in the city: Soboba · 3,000 people · 2018
1/3 SYR4
Dichloromethane
0.5900 µg/L 12%
of the EPA limit 5 µg/L
Highest in the city: Soboba · 3,000 people · 2019
1/3 SYR4
Benzo(A)Pyrene
0.1000 µg/L 50%
of the EPA limit 0.2000 µg/L
Highest in the city: Soboba · 3,000 people · 2018
1/3 SYR4
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
Main supplier: SAN JACINTO, CITY OF · 18,950 people · 2023
Highest in the city: 0.0053 mg/L — Soboba · 3,000 people · 2025
3/3 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving San Jacinto

SupplierPopulation served
SAN JACINTO, CITY OF 18,950
Soboba 3,000
GOLDEN ERA PRODUCTIONS 500

Frequently asked questions about San Jacinto tap water

Is San Jacinto tap water safe to drink?

EPA testing detected 22 contaminants in the water serving San Jacinto. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve San Jacinto?

3 public water suppliers report drinking-water monitoring for San Jacinto, California to the EPA. Each is listed above with its population served.

What contaminants are in San Jacinto's water?

The contaminants EPA monitoring detected in San Jacinto include Fluoride, Nitrate, Barium, TTHM, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.