Is Blue Lake Springs Mut Wtr Tap Water Safe? Quality Report

Water source: SWP
Ownership: Private
Counties served: Calaveras

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
Other	Monitoring	Resolved	2019-07-01
Other	Monitoring	Resolved	2019-07-01
MR	Monitoring	Resolved	1993-04-01 → 1993-04-30
MR	Monitoring	Resolved	1993-04-01 → 1993-04-30

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
Chloroform	59.219 µg/L No EPA limit set worst single sample: 75.65 µg/L	74/76	SYR4	2012–2019
TTHM	63.36 µg/L 79% of the EPA limit 80 µg/L worst single sample: 78.81 µg/L	74/77	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	56.83 µg/L 95% of the EPA limit 60 µg/L worst single sample: 70.6 µg/L	74/74	SYR4	2013–2019
Trichloroacetic Acid	37.455 µg/L No EPA limit set worst single sample: 40.8 µg/L	74/74	SYR4	2013–2019
Dichloroacetic Acid	20.285 µg/L No EPA limit set worst single sample: 28.2 µg/L	72/74	SYR4	2013–2019
Bromodichloromethane	12.08 µg/L No EPA limit set worst single sample: 15.8 µg/L	66/76	SYR4	2012–2019
Dibromochloromethane	3.006 µg/L No EPA limit set worst single sample: 3.17 µg/L	45/76	SYR4	2012–2019
Lead	0.0160 mg/L 107% above the EPA limit of 0.0150 mg/L	33/33	LCR	2024
Monochloroacetic Acid	4.94 µg/L No EPA limit set worst single sample: 5 µg/L	7/74	SYR4	2013–2019
Arsenic	4.59 µg/L 46% of the EPA limit 10 µg/L worst single sample: 4.8 µg/L	4/14	SYR4	2013–2019
Fluoride	128.5 µg/L 3.2% of the EPA limit 4000 µg/L worst single sample: 130 µg/L	4/10	SYR4	2013–2019
Toluene	12.51 µg/L 1.3% of the EPA limit 1000 µg/L worst single sample: 13 µg/L	3/12	SYR4	2012–2019
Lithium	20 µg/L No EPA limit set	3/6	UCMR-5	2024
Dibromoacetic Acid	1.765 µg/L No EPA limit set worst single sample: 1.8 µg/L	2/74	SYR4	2013–2019

96 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MAYO, TYLER
Phone: 209-795-7030
Email: [email protected]

Frequently asked questions about Blue Lake Springs Mut Wtr

Is Blue Lake Springs Mut Wtr tap water safe to drink?

EPA monitoring detected 14 contaminants in Blue Lake Springs Mut Wtr'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 Blue Lake Springs Mut Wtr's water?

EPA monitoring detected Chloroform, TTHM, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Blue Lake Springs Mut Wtr serve?

Blue Lake Springs Mut Wtr reports serving 4,841 people in California, per its EPA record.

Has Blue Lake Springs Mut Wtr had any water quality violations?

The EPA has 4 violations on file for Blue Lake Springs Mut Wtr, of which 0 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.