Is San Simeon Csd Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: San Luis Obispo

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	Resolved	2024-02-01 → 2024-02-29
TT	Health-based	Resolved	2024-02-01 → 2024-02-29
TT	Health-based	Resolved	2023-06-01 → 2023-06-30
TT	Health-based	Resolved	2023-06-01 → 2023-06-30
TT	Health-based	Resolved	2018-12-01 → 2018-12-31
TT	Health-based	Resolved	2018-12-01 → 2018-12-31
MR	Monitoring	Archived	1981-10-01 → 1982-09-30
MR	Monitoring	Archived	1980-10-30 → 1981-10-29

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	2115 µg/L 21% of the EPA limit 10000 µg/L worst single sample: 2400 µg/L	40/50	SYR4	2012–2019
Lead	0.0450 mg/L 300% above the EPA limit of 0.0150 mg/L	9/9	LCR	2025
Barium	179 µg/L 9% of the EPA limit 2000 µg/L worst single sample: 200 µg/L	8/9	SYR4	2013–2017
Fluoride	146.5 µg/L 3.7% of the EPA limit 4000 µg/L worst single sample: 150 µg/L	8/9	SYR4	2013–2017
Bromoform	18.6 µg/L No EPA limit set worst single sample: 21 µg/L	5/5	SYR4	2013–2017
Dibromoacetic Acid	6.72 µg/L No EPA limit set worst single sample: 7.1 µg/L	5/5	SYR4	2013–2017
Dibromochloromethane	8.06 µg/L No EPA limit set worst single sample: 9.2 µg/L	5/5	SYR4	2013–2017
TTHM	22 µg/L 28% of the EPA limit 80 µg/L	5/5	SYR4	2013–2017
Nitrate-Nitrite	2025 µg/L 20% of the EPA limit 10000 µg/L worst single sample: 2100 µg/L	4/6	SYR4	2017
Total Haloacetic Acids (HAA5)	6.875 µg/L 11% of the EPA limit 60 µg/L worst single sample: 7.1 µg/L	4/5	SYR4	2013–2017
Bromodichloromethane	4.63 µg/L No EPA limit set worst single sample: 4.8 µg/L	2/5	SYR4	2013–2017
Chloroform	1.6 µg/L No EPA limit set	1/5	SYR4	2013–2017
Dichloroacetic Acid	1 µg/L No EPA limit set	1/5	SYR4	2013–2017
Selenium	6 µg/L 12% of the EPA limit 50 µg/L	1/9	SYR4	2013–2017

41 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAsbestosAtrazineBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylene DibromideEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MONTGOMERY, RUTH
Phone: 805-927-4778
Email: [email protected]

Frequently asked questions about San Simeon Csd

Is San Simeon Csd tap water safe to drink?

EPA monitoring detected 14 contaminants in San Simeon Csd'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 San Simeon Csd's water?

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

How many people does San Simeon Csd serve?

San Simeon Csd reports serving 462 people in California, per its EPA record.

Has San Simeon Csd had any water quality violations?

The EPA has 8 violations on file for San Simeon Csd, 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.