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Tap water quality report

El Dorado Mutual Water Co.

EPA monitoring tested this supplier for 52 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

52
contaminants tested
15
detected
660
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
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.

0
health-based violations
12
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 1993-07-01
Other Monitoring Archived 1984-09-01 → 1984-09-30
Other Monitoring Archived 1984-08-01 → 1984-08-31
Other Monitoring Archived 1984-07-01 → 1984-07-31

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
TTHM
42 µg/L 53%
of the EPA limit 80 µg/L
 48/48 SYR4 2013–2019
Bromoform
14 µg/L
No EPA limit set
 47/48 SYR4 2013–2019
Dibromoacetic Acid
6.9 µg/L
No EPA limit set
 35/48 SYR4 2013–2019
Nitrate
1898.4 µg/L 19%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Dibromochloromethane
21 µg/L
No EPA limit set
 17/48 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Total Haloacetic Acids (HAA5)
11 µg/L 18%
of the EPA limit 60 µg/L
 4/48 SYR4 2013–2019
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Bromodichloromethane
9.7 µg/L
No EPA limit set
 3/48 SYR4 2013–2019
Chloroform
41 µg/L
No EPA limit set
 3/48 SYR4 2013–2019
Fluoride
290 µg/L 7.2%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Dichloroacetic Acid
2.7 µg/L
No EPA limit set
 2/48 SYR4 2013–2019
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
 2/48 SYR4 2013–2019
Combined Uranium
11.324 µg/L 38%
of the EPA limit 30 µg/L
 1/1 SYR4 2014
Nitrate-Nitrite
1300 µg/L 13%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
37 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAsbestosBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDi(2-ethylhexyl) PhthalateEthylbenzeneLeadMercuryMonochloroacetic AcidNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLER, JEANNIE
Phone
661-947-3255
Email
eldmwc@gmail.com

Frequently asked questions about El Dorado Mutual Water Co.

Is El Dorado Mutual Water Co. tap water safe to drink?

EPA monitoring detected 15 contaminants in El Dorado Mutual Water Co.'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 El Dorado Mutual Water Co.'s water?

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

How many people does El Dorado Mutual Water Co. serve?

El Dorado Mutual Water Co. reports serving 660 people in California, per its EPA record.

Has El Dorado Mutual Water Co. had any water quality violations?

The EPA has 12 violations on file for El Dorado Mutual Water Co., 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.