Serving roughly 12,540 people in Solano County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for CITY OF DIXON
1 water provider directly on file, serving roughly 12,540 people in Solano County, California.
Quick answer: CITY OF DIXON has no violations on file. One reading is worth knowing about: Copper Summary was measured at 310mg/L, among the highest of the 186 providers on file in this area. It's the most notable figure in this system's record among its 186 local peers.
Lead Summary
Copper Summary
Lithium
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Nitrate
Turbidity
pH, Field
Boron, Total
Vanadium, Total
Chromium, Hex
Chromium
Barium
Conductivity (at 25°C)
Utility CITY OF DIXONPopulation served 12,540Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Copper Summary
Detected: 310 mg/L (ppm)
12/31/1997
Vanadium, Total
Detected: 7.2 UG/L (ppb)
5/20/2025
Chromium, Hex
Detected: 25 UG/L (ppb)
10/9/2025
Chromium
Detected: 11 UG/L (ppb)
5/20/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 200 UG/L (ppb)
5/20/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 21 MG/L (ppm)
5/20/2025
Sulfate
Detected: 41 MG/L (ppm)
5/20/2025
Nitrate
Detected: 4.4 MG/L (ppm)
10/9/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Boron, Total
Detected: 520 UG/L (ppb)
5/20/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 35 MG/L (ppm)
5/20/2025
Potassium
Detected: 3.1 MG/L (ppm)
5/20/2025
Sodium
Detected: 61 MG/L (ppm)
5/20/2025
Calcium
Detected: 34 MG/L (ppm)
5/20/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 230 MG/L (ppm)
5/20/2025
pH, Field
Detected: 7.85 PH
5/20/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 40 µg/L (ppb)
5/14/2025
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: 329 MG/L (ppm)
5/20/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 270 MG/L (ppm)
5/20/2025
TDS
Detected: 400 MG/L (ppm)
5/20/2025
Turbidity
Detected: 0.55 NTU
5/20/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 640 UMHO/CM
5/20/2025
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.