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Tap water quality report

Butterfield Ranch

EPA monitoring tested this supplier for 37 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

37
contaminants tested
6
detected
353
people served
11
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Diego

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.

11
health-based violations
54
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
MCL Health-based Resolved 2022-07-01 → 2022-07-31
MCL Health-based Resolved 2022-07-01 → 2022-07-31
MCL Health-based Resolved 2022-06-01 → 2022-06-30
MCL Health-based Resolved 2022-06-01 → 2022-06-30
MCL Health-based Resolved 2022-05-01 → 2022-05-31
MCL Health-based Resolved 2022-05-01 → 2022-05-31
MCL Health-based Resolved 2005-07-01 → 2005-07-31
MCL Health-based Resolved 2005-07-01 → 2005-07-31
MCL Health-based Archived 1988-06-24 → 1989-06-23

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
1143.56 µg/L 11%
of the EPA limit 10000 µg/L
 12/12 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2026
Barium
22 µg/L 1.1%
of the EPA limit 2000 µg/L
 1/1 SYR4 2014
Combined Uranium
19.37 µg/L 65%
of the EPA limit 30 µg/L
 1/1 SYR4 2016
Fluoride
1960 µg/L 49%
of the EPA limit 4000 µg/L
 1/1 SYR4 2014
Selenium
8 µg/L 16%
of the EPA limit 50 µg/L
 1/1 SYR4 2014
31 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneMercuryNitriteStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PHILBIN, MATT
Phone
619-694-9253
Email
mphilbin@anthemrev.com

Frequently asked questions about Butterfield Ranch

Is Butterfield Ranch tap water safe to drink?

EPA monitoring detected 6 contaminants in Butterfield Ranch'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 Butterfield Ranch's water?

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

How many people does Butterfield Ranch serve?

Butterfield Ranch reports serving 353 people in California, per its EPA record.

Has Butterfield Ranch had any water quality violations?

The EPA has 54 violations on file for Butterfield Ranch, of which 11 are health-based (a contaminant limit or required treatment was breached) and 2 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.