Is Spanish Flat Water District Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Napa

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
TT	Health-based	Unaddressed	2024-10-17
RPT	Monitoring	Unaddressed	2024-10-17
MR	Monitoring	Resolved	2024-10-01
MR	Monitoring	Resolved	2024-10-01
MR	Monitoring	Resolved	2022-07-01
MR	Monitoring	Resolved	2022-07-01
MR	Monitoring	Resolved	2021-10-01
MR	Monitoring	Resolved	2021-10-01
Other	Monitoring	Resolved	2020-07-01
Other	Monitoring	Resolved	2020-07-01

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	13.6 µg/L No EPA limit set worst single sample: 15 µg/L	29/29	SYR4	2012–2019
Chloroform	73 µg/L No EPA limit set worst single sample: 77 µg/L	29/29	SYR4	2012–2019
TTHM	85.8 µg/L 107% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 92 µg/L	29/29	SYR4	2012–2019
Trichloroacetic Acid	23.25 µg/L No EPA limit set worst single sample: 30 µg/L	28/28	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	27/27	LCR	2025
Total Haloacetic Acids (HAA5)	24.25 µg/L 40% of the EPA limit 60 µg/L worst single sample: 30 µg/L	26/28	SYR4	2012–2019
Dibromochloromethane	3 µg/L No EPA limit set	24/29	SYR4	2012–2019
Dichloroacetic Acid	8.83 µg/L No EPA limit set worst single sample: 11 µg/L	8/28	SYR4	2012–2019
Arsenic	2.92 µg/L 29% of the EPA limit 10 µg/L worst single sample: 3 µg/L	3/7	SYR4	2012–2019
Barium	52.6 µg/L 2.6% of the EPA limit 2000 µg/L worst single sample: 53 µg/L	2/7	SYR4	2012–2019
Chromium	0.9535 µg/L 1% of the EPA limit 100 µg/L worst single sample: 0.9700 µg/L	2/7	SYR4	2012–2019
Nitrate	190 µg/L 1.9% of the EPA limit 10000 µg/L	2/14	SYR4	2012–2019

59 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, TotalAsbestosAtrazineBhc-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideHeptachlorHeptachlor EpoxideLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: QUARNERI, PAUL
Phone: 707-966-1607
Email: PDQ9251@GMAIL.COM

Frequently asked questions about Spanish Flat Water District

Is Spanish Flat Water District tap water safe to drink?

EPA monitoring detected 12 contaminants in Spanish Flat Water District'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 Spanish Flat Water District's water?

EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Trichloroacetic Acid, Lead, and others. The full list with the level and data source for each is above.

How many people does Spanish Flat Water District serve?

Spanish Flat Water District reports serving 230 people in California, per its EPA record.

Has Spanish Flat Water District had any water quality violations?

The EPA has 21 violations on file for Spanish Flat Water District, 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.