Is La Jolla Eastern Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Native American

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
MCL	Health-based	Resolved	2004-12-01 → 2004-12-31
MCL	Health-based	Resolved	2003-05-01 → 2003-05-31
MCL	Health-based	Resolved	2001-07-01 → 2001-07-31
MCL	Health-based	Resolved	2000-07-01 → 2000-07-31
MCL	Health-based	Resolved	1997-10-01 → 1997-10-31
MON	Monitoring	Resolved	2022-06-01 → 2022-06-30
MR	Monitoring	Resolved	2022-04-01 → 2022-06-30
MR	Monitoring	Resolved	2017-01-01 → 2022-12-31
MR	Monitoring	Resolved	2009-12-01 → 2009-12-31
MR	Monitoring	Resolved	2006-09-01 → 2006-09-30

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
Lead	0.0050 mg/L 33% of the EPA limit 0.0150 mg/L	6/6	LCR	2025
Total Haloacetic Acids (HAA5)	12.9375 µg/L 22% of the EPA limit 60 µg/L worst single sample: 14.45 µg/L	6/7	SYR4	2012–2019
TTHM	16.416 µg/L 21% of the EPA limit 80 µg/L worst single sample: 17 µg/L	5/5	SYR4	2012–2019
Barium	29 µg/L 1.5% of the EPA limit 2000 µg/L	1/1	SYR4	2017
Fluoride	260 µg/L 6.5% of the EPA limit 4000 µg/L	1/1	SYR4	2017

51 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrateNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: Wesley Ruise
Phone: 7607423771
Email: wesley.ruisejr@lajolla-nsn.gov

Frequently asked questions about La Jolla Eastern

Is La Jolla Eastern tap water safe to drink?

EPA monitoring detected 5 contaminants in La Jolla Eastern'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 La Jolla Eastern's water?

EPA monitoring detected Lead, Total Haloacetic Acids (HAA5), TTHM, Barium, Fluoride. The full list with the level and data source for each is above.

How many people does La Jolla Eastern serve?

La Jolla Eastern reports serving 1,076 people in California, per its EPA record.

Has La Jolla Eastern had any water quality violations?

The EPA has 25 violations on file for La Jolla Eastern, of which 5 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.