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Tap water quality report

City of San Clemente

EPA monitoring tested this supplier for 110 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
16
detected
51,545
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Local government
Counties served
Orange

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.

0
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2004-12-01 → 2004-12-31
MR Monitoring Resolved 2004-10-01 → 2004-12-31
MR Monitoring Resolved 2004-10-01 → 2004-12-31
Other Monitoring Archived 1988-11-01 → 1988-11-30

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
16.3 µg/L
No EPA limit set
worst single sample: 21.2 µg/L
107/107 SYR4 2012–2019
Bromoform
8.034 µg/L
No EPA limit set
worst single sample: 9.62 µg/L
107/107 SYR4 2012–2019
Chloroform
19.25 µg/L
No EPA limit set
worst single sample: 27.4 µg/L
107/107 SYR4 2012–2019
Dibromochloromethane
20.64 µg/L
No EPA limit set
worst single sample: 26.3 µg/L
107/107 SYR4 2012–2019
TTHM
55.92 µg/L 70%
of the EPA limit 80 µg/L
worst single sample: 68.6 µg/L
107/107 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
25.73 µg/L 43%
of the EPA limit 60 µg/L
worst single sample: 42.6 µg/L
107/107 SYR4 2012–2019
Dichloroacetic Acid
15.285 µg/L
No EPA limit set
worst single sample: 17.7 µg/L
104/107 SYR4 2012–2019
Trichloroacetic Acid
10.47 µg/L
No EPA limit set
worst single sample: 22.1 µg/L
103/107 SYR4 2012–2019
Dibromoacetic Acid
7.118 µg/L
No EPA limit set
worst single sample: 11.5 µg/L
99/107 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2025
Nitrate
2111.8 µg/L 21%
of the EPA limit 10000 µg/L
worst single sample: 2111.97 µg/L
24/26 SYR4 2012–2019
Lithium
60 µg/L
No EPA limit set
 8/8 UCMR-5 2024
Barium
71.8 µg/L 3.6%
of the EPA limit 2000 µg/L
worst single sample: 73 µg/L
4/5 SYR4 2012–2018
Fluoride
547.5 µg/L 14%
of the EPA limit 4000 µg/L
worst single sample: 570 µg/L
4/4 SYR4 2012–2018
Combined Uranium
1.49 µg/L 5%
of the EPA limit 30 µg/L
 1/2 SYR4 2016–2017
Monobromoacetic Acid
4.84 µg/L
No EPA limit set
 1/107 SYR4 2012–2019
94 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BURNSIDE, DUSTIN
Phone
949-361-8355
Email
burnsided@san-clemente.org

Frequently asked questions about City of San Clemente

Is City of San Clemente tap water safe to drink?

EPA monitoring detected 16 contaminants in City of San Clemente'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 City of San Clemente's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does City of San Clemente serve?

City of San Clemente reports serving 51,545 people in California, per its EPA record.

Has City of San Clemente had any water quality violations?

The EPA has 4 violations on file for City of San Clemente, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.