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Tap water quality report

Thermal Park

EPA monitoring tested this supplier for 51 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

51
contaminants tested
5
detected
73
people served
8
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Riverside

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

8
health-based violations
96
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Addressed 2024-10-17
MCL Health-based Resolved 2001-09-01 → 2001-10-31
MCL Health-based Resolved 2001-07-01 → 2001-07-31
MCL Health-based Resolved 2001-07-01 → 2001-07-31
MCL Health-based Resolved 2001-07-01 → 2001-07-31
MCL Health-based Resolved 2001-07-01 → 2001-07-31
MCL Health-based Resolved 2001-07-01 → 2001-07-31
MCL Health-based Resolved 2000-05-01 → 2000-05-31
MON Monitoring Archived 2025-04-01 → 2025-04-30
RPT Monitoring Addressed 2024-10-17

Other contaminants detected

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2024
Arsenic
5.7 µg/L 57%
of the EPA limit 10 µg/L
 2/2 SYR4 2018
Barium
22 µg/L 1.1%
of the EPA limit 2000 µg/L
 2/2 SYR4 2018
Combined Uranium
6.7646 µg/L 23%
of the EPA limit 30 µg/L
 2/2 SYR4 2012–2013
Fluoride
560 µg/L 14%
of the EPA limit 4000 µg/L
 2/2 SYR4 2018
46 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAsbestosBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneGlyphosateLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitrateNitriteSeleniumStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JARA, JAMIE
Phone
760-578-4687
Email
JJARA@IWPUSA.COM

Frequently asked questions about Thermal Park

Is Thermal Park tap water safe to drink?

EPA monitoring detected 5 contaminants in Thermal Park's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Thermal Park's water?

EPA monitoring detected Lead, Arsenic, Barium, Combined Uranium, Fluoride. The full list with the level and data source for each is above.

How many people does Thermal Park serve?

Thermal Park reports serving 73 people in California, per its EPA record.

Has Thermal Park had any water quality violations?

The EPA has 96 violations on file for Thermal Park, of which 8 are health-based (a contaminant limit or required treatment was breached) and 2 remain open. The rest are monitoring or reporting failures.

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.