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Sunnyside Farms Mutual Water Company

EPA monitoring tested this supplier for 68 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
7
detected
436
people served
2
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.

2
health-based violations
17
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-10-01 → 2025-12-31
Other Monitoring Resolved 2026-01-03
Other Monitoring Resolved 2026-01-03
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-04-01 → 2025-06-30
MR Monitoring Resolved 2025-04-01 → 2025-06-30
MR Monitoring Resolved 2018-01-01
MR Monitoring Resolved 2018-01-01

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 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
9000 µg/L 90%
of the EPA limit 10000 µg/L
 208/210 SYR4 2012–2019
Lead
0.0070 mg/L 47%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2026
Fluoride
270 µg/L 6.8%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2017
Arsenic
23 µg/L 230%
of the EPA limit, in the worst sample — 10 µg/L
 1/5 SYR4 2014–2018
Combined Uranium
2.831 µg/L 9.4%
of the EPA limit 30 µg/L
 1/3 SYR4 2014
Nitrate-Nitrite
7000 µg/L 70%
of the EPA limit 10000 µg/L
 1/1 SYR4 2017
Selenium
107 µg/L 214%
of the EPA limit, in the worst sample — 50 µg/L
 1/5 SYR4 2014–2018
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MILLER, JEANNE
Phone
661-947-3437
Email
SSFMWC@GMAIL.COM

Frequently asked questions about Sunnyside Farms Mutual Water Company

Is Sunnyside Farms Mutual Water Company tap water safe to drink?

EPA monitoring detected 7 contaminants in Sunnyside Farms 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 Sunnyside Farms Mutual Water Company's water?

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

How many people does Sunnyside Farms Mutual Water Company serve?

Sunnyside Farms Mutual Water Company reports serving 436 people in California, per its EPA record.

Has Sunnyside Farms Mutual Water Company had any water quality violations?

The EPA has 17 violations on file for Sunnyside Farms Mutual Water Company, of which 2 are health-based (a contaminant limit or required treatment was breached) and 1 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.