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Tierra Bonita Mutual Water

EPA monitoring tested this supplier for 68 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
5
detected
75
people served
4
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
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.

4
health-based violations
9
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-08-01 → 2011-08-31
MCL Health-based Resolved 2011-08-01 → 2011-08-31
MCL Health-based Resolved 2011-07-01 → 2011-07-31
MCL Health-based Resolved 2011-07-01 → 2011-07-31
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2019-10-01
MR Monitoring Resolved 2017-01-01 → 2017-12-31
MR Monitoring Resolved 2017-01-01 → 2017-12-31
MR Monitoring Unaddressed 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 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
2800 µg/L 28%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Combined Uranium
1.8923 µg/L 6.3%
of the EPA limit 30 µg/L
 5/6 SYR4 2014–2016
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2023
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
 1/2 SYR4 2015–2018
Nitrate-Nitrite
2100 µg/L 21%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
63 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, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GAUDI, MELISSA
Phone
805-651-9710
Email
tierrabonitawater@yahoo.com

Frequently asked questions about Tierra Bonita Mutual Water

Is Tierra Bonita Mutual Water tap water safe to drink?

EPA monitoring detected 5 contaminants in Tierra Bonita Mutual Water'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 Tierra Bonita Mutual Water's water?

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

How many people does Tierra Bonita Mutual Water serve?

Tierra Bonita Mutual Water reports serving 75 people in California, per its EPA record.

Has Tierra Bonita Mutual Water had any water quality violations?

The EPA has 9 violations on file for Tierra Bonita Mutual Water, of which 4 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.