MOUNT SHASTA is served by 1 water provider on file with the EPA.
Data current as of July 2026
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Results for MOUNT SHASTA, CA
1 water provider on file serving this city.
Quick answer: MOUNT SHASTA's water currently has an open health-based violation on file: Lead And Copper Rule Revisions, a compliance issue since 10/17/2024. This is active, not historical — see the violation detail below for what EPA's enforcement record shows.
Lead Summary
Copper Summary
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Sulfate
pH
Barium
Conductivity (at 25°C)
Nitrate
Violations on file
Lead And Copper Rule Revisions
Currently open health violation
Found at 1 of 1 provider
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.00136 mg/L (ppm)
12/31/2024
Copper Summary
Detected: 1.51 mg/L (ppm)
12/31/2015
Barium
Detected: 0.9 UG/L (ppb)
5/27/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 0.53 MG/L (ppm)
5/27/2025
Nitrate
Detected: 0.15 MG/L (ppm)
6/30/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Minerals
Everyday minerals that mainly affect taste and water hardness
Sodium
Detected: 3.1 MG/L (ppm)
5/27/2025
Calcium
Detected: 5.7 MG/L (ppm)
5/27/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 17 MG/L (ppm)
5/27/2025
pH
Detected: 6.63 PH
5/27/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 27 MG/L (ppm)
5/27/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 27 MG/L (ppm)
5/27/2025
TDS
Detected: 60 MG/L (ppm)
5/27/2025
Conductivity (at 25°C)
Detected: 54 UMHO/CM
5/27/2025
Filtration considerations: General system types, not a specific product recommendation.