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Tap water quality report

Calico Lake Homeowners

EPA monitoring tested this supplier for 70 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
6
detected
150
people served
1
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Bernardino

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.

1
health-based violations
8
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
RPT Monitoring Unaddressed 2024-10-17
Other Monitoring Resolved 2022-07-01
Other Monitoring Resolved 2022-07-01
MR Monitoring Archived 2021-01-01 → 2023-12-31
Other Monitoring Resolved 2020-07-01
Other Monitoring Resolved 2020-07-01
MR Monitoring Resolved 1993-07-01

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Combined Uranium
28.906 µg/L 96%
of the EPA limit 30 µg/L
worst single sample: 29.8 µg/L
13/13 SYR4 2013–2017
Nitrate
3800 µg/L 38%
of the EPA limit 10000 µg/L
 10/26 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2025
Fluoride
670 µg/L 17%
of the EPA limit 4000 µg/L
worst single sample: 700 µg/L
4/4 SYR4 2013–2019
Chromium
4.63 µg/L 4.6%
of the EPA limit 100 µg/L
worst single sample: 4.7 µg/L
2/4 SYR4 2013–2019
Cadmium
4.7 µg/L 94%
of the EPA limit 5 µg/L
 1/4 SYR4 2013–2019
64 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, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
_SIOSS, GEORGE
Phone
760-254-3199
Email
sioss8@gmail.com

Frequently asked questions about Calico Lake Homeowners

Is Calico Lake Homeowners tap water safe to drink?

EPA monitoring detected 6 contaminants in Calico Lake Homeowners'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 Calico Lake Homeowners's water?

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

How many people does Calico Lake Homeowners serve?

Calico Lake Homeowners reports serving 150 people in California, per its EPA record.

Has Calico Lake Homeowners had any water quality violations?

The EPA has 8 violations on file for Calico Lake Homeowners, of which 1 is 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.