Is Delft Colony Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Tulare

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	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2004-03-01 → 2004-03-31
MCL	Health-based	Resolved	2003-07-01 → 2003-07-31
MCL	Health-based	Resolved	2003-03-01 → 2003-03-31
MCL	Health-based	Resolved	2003-02-01 → 2003-02-28
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MON	Monitoring	Resolved	2016-07-01 → 2016-07-31
MON	Monitoring	Resolved	2016-07-01 → 2016-07-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	5115 µg/L 51% of the EPA limit 10000 µg/L worst single sample: 5200 µg/L	38/38	SYR4	2012–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	14/14	LCR	2025
Arsenic	3.45 µg/L 35% of the EPA limit 10 µg/L worst single sample: 3.6 µg/L	7/7	SYR4	2012–2018
Barium	79.1 µg/L 4% of the EPA limit 2000 µg/L worst single sample: 83 µg/L	7/7	SYR4	2012–2018
Chromium	3.43 µg/L 3.4% of the EPA limit 100 µg/L worst single sample: 3.7 µg/L	7/7	SYR4	2012–2018
Fluoride	164 µg/L 4.1% of the EPA limit 4000 µg/L worst single sample: 170 µg/L	3/6	SYR4	2012–2018

58 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, TotalAtrazineBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndothallEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: PEREZ, ANDRES
Phone: 559-624-7191
Email: [email protected]

Frequently asked questions about Delft Colony Water

Is Delft Colony Water tap water safe to drink?

EPA monitoring detected 6 contaminants in Delft Colony 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 Delft Colony Water's water?

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

How many people does Delft Colony Water serve?

Delft Colony Water reports serving 412 people in California, per its EPA record.

Has Delft Colony Water had any water quality violations?

The EPA has 17 violations on file for Delft Colony Water, of which 6 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.