Serving roughly 123,679 people in Monterey County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for CWSC SALINAS
1 water provider directly on file, serving roughly 123,679 people in Monterey County, California.
Quick answer: CWSC SALINAS has no violations on file. One reading is worth knowing about: Potassium was measured at 5.5MG/L, among the highest of the 672 providers on file in this area. It's the most notable figure in this system's record among its 672 local peers.
Lead Summary
Lithium
Aggressive Index
Temperature (CENTIGRADE)
Langelier Index (pH(s))
Magnesium
Calcium
Sodium
Potassium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
Foamingagents (SURFACTANTS)
TDS
Chloride
Sulfate
Fluoride
Nitrate-Nitrite
Nitrate
Utility CWSC SALINASPopulation served 123,679Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0012 mg/L (ppm)
12/31/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 81 MG/L (ppm)
10/20/2025
Sulfate
Detected: 280 MG/L (ppm)
10/20/2025
Fluoride
Detected: 0.18 MG/L (ppm)
10/20/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 4.7 MG/L (ppm)
10/20/2025
Nitrate
Detected: 4.7 MG/L (ppm)
10/20/2025
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
Magnesium
Detected: 40 MG/L (ppm)
10/20/2025
Calcium
Detected: 160 MG/L (ppm)
10/20/2025
Sodium
Detected: 67 MG/L (ppm)
10/20/2025
Potassium
Detected: 5.5 MG/L (ppm)
10/20/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: 0.28 LANG
10/20/2025
Hardness, Total (ASCACO3)
Detected: 550 MG/L (ppm)
10/20/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 11 µg/L (ppb)
2/25/2025
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: 270 MG/L (ppm)
10/20/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12.4 AGGR
10/20/2025
Temperature (CENTIGRADE)
Detected: 21.9 C
7/7/2025
Alkalinity, Total
Detected: 270 MG/L (ppm)
10/20/2025
Foamingagents (SURFACTANTS)
Detected: 0.076 MG/L (ppm)
1/9/2025
TDS
Detected: 910 MG/L (ppm)
10/20/2025
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.