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Tap water quality report

Twin Lakes Resort

EPA monitoring tested this supplier for 52 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

52
contaminants tested
7
detected
400
people served
36
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.

36
health-based violations
68
violations on file
5
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2025-04-01 → 2025-06-30
MCL Health-based Archived 2025-01-01 → 2025-03-31
MCL Health-based Archived 2024-10-01 → 2024-12-31
MCL Health-based Archived 2024-07-01 → 2024-09-30
MCL Health-based Archived 2024-04-01 → 2024-06-30
MCL Health-based Archived 2024-01-01 → 2024-03-31
MCL Health-based Archived 2023-10-01 → 2023-12-31
MCL Health-based Archived 2023-07-01 → 2023-09-30
MCL Health-based Archived 2023-01-01 → 2023-03-31
MCL Health-based Archived 2022-10-01 → 2022-12-31

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
Arsenic
12 µg/L 120%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
 12/13 SYR4 2016–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2024
Nitrate
1400 µg/L 14%
of the EPA limit 10000 µg/L
 4/4 SYR4 2018–2019
Combined Uranium
34.7617 µg/L 116%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 35.164 µg/L
3/3 SYR4 2016–2018
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 1/1 SYR4 2018
Nitrite
0.1600 µg/L 0%
of the EPA limit 1000 µg/L
 1/1 SYR4 2018
Selenium
7.2 µg/L 14%
of the EPA limit 50 µg/L
 1/3 SYR4 2018–2019
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEthylbenzeneLassoMercuryPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GONZALEZ, GEORGINA
Phone
619-283-6432
Email
[email protected]

Frequently asked questions about Twin Lakes Resort

Is Twin Lakes Resort tap water safe to drink?

EPA monitoring detected 7 contaminants in Twin Lakes Resort'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 Twin Lakes Resort's water?

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

How many people does Twin Lakes Resort serve?

Twin Lakes Resort reports serving 400 people in California, per its EPA record.

Has Twin Lakes Resort had any water quality violations?

The EPA has 68 violations on file for Twin Lakes Resort, of which 36 are health-based (a contaminant limit or required treatment was breached) and 5 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.