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Tap water quality report

South Coast Water District

EPA monitoring tested this supplier for 55 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

55
contaminants tested
17
detected
41,118
people served
2
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.

2
health-based violations
2
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2000-01-01 → 2000-01-31
MCL Health-based Resolved 2000-01-01 → 2000-01-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0058 µg/L 1/8 2023

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
Bromodichloromethane
28.4 µg/L
No EPA limit set
 112/112 SYR4 2012–2019
Chloroform
31.9 µg/L
No EPA limit set
 112/112 SYR4 2012–2019
Dibromochloromethane
31.8 µg/L
No EPA limit set
 112/112 SYR4 2012–2019
TTHM
85 µg/L 106%
of the EPA limit, in the worst sample — 80 µg/L
 112/112 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
64.1 µg/L 107%
of the EPA limit, in the worst sample — 60 µg/L
 112/112 SYR4 2012–2019
Bromoform
77 µg/L
No EPA limit set
 111/112 SYR4 2012–2019
Dichloroacetic Acid
42.5 µg/L
No EPA limit set
 111/112 SYR4 2012–2019
Trichloroacetic Acid
29 µg/L
No EPA limit set
 110/112 SYR4 2012–2019
Dibromoacetic Acid
13.8 µg/L
No EPA limit set
 101/112 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2023
Lithium
48 µg/L
No EPA limit set
 6/8 UCMR-5 2023
Nitrate
2800 µg/L 28%
of the EPA limit 10000 µg/L
 4/4 SYR4 2019
Barium
74 µg/L 3.7%
of the EPA limit 2000 µg/L
 2/2 SYR4 2019
Fluoride
810 µg/L 20%
of the EPA limit 4000 µg/L
 2/2 SYR4 2019
Lead
6.8 µg/L 45%
of the EPA limit 15 µg/L
 1/1 SYR4 2019
Nitrite
0.0230 µg/L 0%
of the EPA limit 1000 µg/L
 1/2 SYR4 2019
38 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBeryllium, TotalCadmiumChromiumHfpo-DaMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumThallium, Total

Utility contact

Contact
SHINTAKU, RICK
Phone
949-342-1152
Email
rshintaku@scwd.org

Frequently asked questions about South Coast Water District

Is South Coast Water District tap water safe to drink?

EPA monitoring detected 17 contaminants in South Coast Water District'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 South Coast Water District's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does South Coast Water District serve?

South Coast Water District reports serving 41,118 people in California, per its EPA record.

Has South Coast Water District had any water quality violations?

The EPA has 2 violations on file for South Coast Water District, of which 2 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.