Serving roughly 4,841 people in Calaveras County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for BLUE LAKE SPRINGS MUT WTR
1 water provider directly on file, serving roughly 4,841 people in Calaveras County, California.
Quick answer: BLUE LAKE SPRINGS MUT WTR has no violations on file. One reading is worth knowing about: Bromodichloromethane was measured at 10.2UG/L, among the highest of the 97 providers on file in this area. It's the most notable figure in this system's record among its 97 local peers.
Lead Summary
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Monochloroaceticacid
Copper, Free
Iron
Manganese
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Turbidity
Gross Alpha Particle Activity
pH, Field
pH
Odor
Zinc
Conductivity (at 25°C)
Color
Utility BLUE LAKE SPRINGS MUT WTRPopulation served 4,841Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.016 mg/L (ppm)
12/31/2024
Copper, Free
Detected: 260 UG/L (ppb)
1/19/2025
Iron
Detected: 460 UG/L (ppb)
10/8/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 330 UG/L (ppb)
10/8/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Zinc
Detected: 120 UG/L (ppb)
10/8/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 39.9 UG/L (ppb)
10/8/2025
TTHM
Detected: 60.8 UG/L (ppb)
10/8/2025
A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.
Chloroform
Detected: 48.9 UG/L (ppb)
10/8/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 10.2 UG/L (ppb)
10/8/2025
Dibromochloromethane
Detected: 1.7 UG/L (ppb)
10/8/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 1.9 MG/L (ppm)
2/5/2025
Sulfate
Detected: 2.1 MG/L (ppm)
2/5/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 6.8 MG/L (ppm)
2/5/2025
Potassium
Detected: 1.7 MG/L (ppm)
2/5/2025
Sodium
Detected: 12 MG/L (ppm)
2/5/2025
Calcium
Detected: 43 MG/L (ppm)
2/5/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 130 MG/L (ppm)
2/5/2025
Gross Alpha Particle Activity
Detected: 1.75 PCI/L
5/7/2025
pH, Field
Detected: 7.29 PH
10/8/2025
pH
Detected: 7.44 PH
2/5/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 20 µg/L (ppb)
10/2/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 207 MG/L (ppm)
2/5/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 16.5 UG/L (ppb)
10/8/2025
Trichloroaceticacid
Detected: 23.4 UG/L (ppb)
10/8/2025
Monochloroaceticacid
Detected: 3.9 UG/L (ppb)
8/6/2025
Alkalinity, Total
Detected: 170 MG/L (ppm)
2/5/2025
TDS
Detected: 190 MG/L (ppm)
2/5/2025
Turbidity
Detected: 7.8 NTU
2/5/2025
A measure of water cloudiness from suspended particles.
Odor
Detected: 1 TON
2/5/2025
Conductivity (at 25°C)
Detected: 280 UMHO/CM
2/5/2025
Color
Detected: 94 UNITS
2/5/2025
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.