Is El Dorado Id - Main Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: El Dorado

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2003-07-22
TT	Health-based	Resolved	2003-07-22
TT	Health-based	Resolved	2001-06-08
TT	Health-based	Resolved	2001-06-08
TT	Health-based	Resolved	1998-01-01
TT	Health-based	Resolved	1998-01-01
TT	Health-based	Resolved	1998-01-01
TT	Health-based	Resolved	1998-01-01
TT	Health-based	Resolved	1998-01-01
TT	Health-based	Resolved	1998-01-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfpea	0.0032 µg/L	1/12	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 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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Chloroform	78.1 µg/L No EPA limit set worst single sample: 92 µg/L	259/259	SYR4	2013–2019
TTHM	81.1 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 96 µg/L	259/259	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	69 µg/L 115% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 99 µg/L	259/259	SYR4	2013–2019
Trichloroacetic Acid	50.1 µg/L No EPA limit set worst single sample: 62 µg/L	259/259	SYR4	2013–2019
Bromodichloromethane	4.02 µg/L No EPA limit set worst single sample: 5.7 µg/L	257/259	SYR4	2013–2019
Dichloroacetic Acid	23 µg/L No EPA limit set worst single sample: 33 µg/L	251/259	SYR4	2013–2019
Monochloroacetic Acid	7.86 µg/L No EPA limit set worst single sample: 11 µg/L	135/259	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	19/19	LCR	2023
Nitrate	81.36 µg/L 0.8% of the EPA limit 10000 µg/L	2/44	SYR4	2012–2019
Monobromoacetic Acid	1.5 µg/L No EPA limit set	1/259	SYR4	2013–2019
Nitrate-Nitrite	82000 µg/L 820% of the EPA limit, at the 95th percentile of samples — 10000 µg/L	1/19	SYR4	2013–2019

98 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, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: VANDEYAR, PRAVANI
Phone: 530-642-4041
Email: [email protected]

Frequently asked questions about El Dorado Id - Main

Is El Dorado Id - Main tap water safe to drink?

EPA monitoring detected 12 contaminants in El Dorado Id - Main'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 Id - Main's water?

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

How many people does El Dorado Id - Main serve?

El Dorado Id - Main reports serving 132,171 people in California, per its EPA record.

Has El Dorado Id - Main had any water quality violations?

The EPA has 15 violations on file for El Dorado Id - Main, of which 13 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.