Is Myoma Dunes Mutual Water Company Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Riverside

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
MR	Monitoring	Resolved	1993-06-30 → 2000-03-01

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
Nitrate	1017 µg/L 10% of the EPA limit 10000 µg/L worst single sample: 1100 µg/L	92/94	SYR4	2012–2019
Chromium	15 µg/L 15% of the EPA limit 100 µg/L worst single sample: 17 µg/L	83/83	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	40/40	LCR	2024
Fluoride	1235 µg/L 31% of the EPA limit 4000 µg/L worst single sample: 1300 µg/L	14/14	SYR4	2012–2019
Combined Uranium	9.70139 µg/L 32% of the EPA limit 30 µg/L worst single sample: 9.983 µg/L	10/10	SYR4	2013–2018
Barium	34.75 µg/L 1.7% of the EPA limit 2000 µg/L worst single sample: 35 µg/L	6/14	SYR4	2012–2019
Monochloroacetic Acid	4.91 µg/L No EPA limit set worst single sample: 5 µg/L	4/44	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	4.97 µg/L 8.3% of the EPA limit 60 µg/L worst single sample: 5 µg/L	4/44	SYR4	2014–2019

102 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: DONZE, MICHELE
Phone: 760-772-1967
Email: [email protected]

Frequently asked questions about Myoma Dunes Mutual Water Company

Is Myoma Dunes Mutual Water Company tap water safe to drink?

EPA monitoring detected 8 contaminants in Myoma Dunes Mutual Water Company'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 Myoma Dunes Mutual Water Company's water?

EPA monitoring detected Nitrate, Chromium, Lead, Fluoride, Combined Uranium, and others. The full list with the level and data source for each is above.

How many people does Myoma Dunes Mutual Water Company serve?

Myoma Dunes Mutual Water Company reports serving 9,445 people in California, per its EPA record.

Has Myoma Dunes Mutual Water Company had any water quality violations?

The EPA has 1 violation on file for Myoma Dunes Mutual Water Company, 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.