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Tap water quality report

So. Cal. Edison Co.-Santa Catalina

EPA monitoring tested this supplier for 112 contaminants and detected 26. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
26
detected
3,822
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Private
Counties served
Los Angeles

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 1992-03-01 → 1992-03-31
MCL Health-based Resolved 1992-03-01 → 1992-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhpa 0.0070 µg/L 4/19 2024

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
Nitrate
5800 µg/L 58%
of the EPA limit 10000 µg/L
 72/322 SYR4 2012–2019
Bromoform
120 µg/L
No EPA limit set
 67/72 SYR4 2013–2019
TTHM
160 µg/L 200%
of the EPA limit, in the worst sample — 80 µg/L
 67/72 SYR4 2013–2019
Dibromoacetic Acid
41 µg/L
No EPA limit set
 66/66 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
54 µg/L 90%
of the EPA limit 60 µg/L
 66/66 SYR4 2014–2019
Dibromochloromethane
43 µg/L
No EPA limit set
 65/72 SYR4 2013–2019
Fluoride
870 µg/L 22%
of the EPA limit 4000 µg/L
 53/58 SYR4 2012–2019
Dichloroacetic Acid
6.8 µg/L
No EPA limit set
 49/66 SYR4 2014–2019
Bromodichloromethane
14 µg/L
No EPA limit set
 41/72 SYR4 2013–2019
Monobromoacetic Acid
3.8 µg/L
No EPA limit set
 32/66 SYR4 2014–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 27/27 LCR 2023
Barium
230 µg/L 12%
of the EPA limit 2000 µg/L
 19/54 SYR4 2012–2019
Combined Uranium
3.874 µg/L 13%
of the EPA limit 30 µg/L
 15/40 SYR4 2013–2019
Trichloroacetic Acid
2.3 µg/L
No EPA limit set
 13/66 SYR4 2014–2019
Chloroform
2.5 µg/L
No EPA limit set
 12/72 SYR4 2013–2019
Lithium
52.9 µg/L
No EPA limit set
 12/20 UCMR-5 2024
Nitrate-Nitrite
5800 µg/L 58%
of the EPA limit 10000 µg/L
 8/22 SYR4 2012–2019
Arsenic
6 µg/L 60%
of the EPA limit 10 µg/L
 6/55 SYR4 2012–2019
Gross Beta Particle Activity
390 pCi/L
No EPA limit set
 4/4 SYR4 2014–2016
Tetrachloroethylene
4.5 µg/L 90%
of the EPA limit 5 µg/L
 2/104 SYR4 2012–2019
Toluene
1.6 µg/L 0.2%
of the EPA limit 1000 µg/L
 2/104 SYR4 2012–2019
Copper
140 µg/L 11%
of the EPA limit 1300 µg/L
 1/66 SYR4 2012–2019
Chromium
11 µg/L 11%
of the EPA limit 100 µg/L
 1/57 SYR4 2012–2019
Selenium
12 µg/L 24%
of the EPA limit 50 µg/L
 1/57 SYR4 2012–2019
Trichloroethylene
2 µg/L 40%
of the EPA limit 5 µg/L
 1/104 SYR4 2012–2019
86 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SPENCER, DAVID
Phone
909-253-9406
Email
david.spencer@sce.com

Frequently asked questions about So. Cal. Edison Co.-Santa Catalina

Is So. Cal. Edison Co.-Santa Catalina tap water safe to drink?

EPA monitoring detected 26 contaminants in So. Cal. Edison Co.-Santa Catalina'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 So. Cal. Edison Co.-Santa Catalina's water?

EPA monitoring detected Nitrate, Bromoform, TTHM, Dibromoacetic Acid, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does So. Cal. Edison Co.-Santa Catalina serve?

So. Cal. Edison Co.-Santa Catalina reports serving 3,822 people in California, per its EPA record.

Has So. Cal. Edison Co.-Santa Catalina had any water quality violations?

The EPA has 2 violations on file for So. Cal. Edison Co.-Santa Catalina, 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.