Serving roughly 10,398 people in Sonoma County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for CLOVERDALE, CITY OF
1 water provider directly on file, serving roughly 10,398 people in Sonoma County, California.
Quick answer: CLOVERDALE, CITY OF has no violations on file and no single reading stands out against its peers (756 other providers in this area). It serves roughly 10,398 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Copper Summary
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Copper, Free
Aluminum
Aggressive Index
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Nitrate
Turbidity
pH
Boron, Total
Chromium, Hex
Barium
Iron
Conductivity (at 25°C)
Color
Utility CLOVERDALE, CITY OFPopulation served 10,398Owner Private
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Copper Summary
Detected: 2.17 mg/L (ppm)
12/31/1993
Copper, Free
Detected: 130 UG/L (ppb)
9/25/2025
Aluminum
Detected: 86 UG/L (ppb)
8/6/2025
Chromium, Hex
Detected: 0.588 UG/L (ppb)
10/1/2025
Barium
Detected: 130 UG/L (ppb)
8/6/2025
Iron
Detected: 110 UG/L (ppb)
9/3/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 10.1 UG/L (ppb)
1/15/2025
TTHM
Detected: 20.52 UG/L (ppb)
1/15/2025
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: 7.37 UG/L (ppb)
1/15/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 1.14 UG/L (ppb)
1/15/2025
Bromodichloromethane
Detected: 6.86 UG/L (ppb)
1/15/2025
Dibromochloromethane
Detected: 5.15 UG/L (ppb)
1/15/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 5.2 MG/L (ppm)
8/6/2025
Sulfate
Detected: 15 MG/L (ppm)
8/6/2025
Nitrate
Detected: 0.44 MG/L (ppm)
3/5/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Boron, Total
Detected: 260 UG/L (ppb)
8/6/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 19 MG/L (ppm)
8/6/2025
Sodium
Detected: 8.3 MG/L (ppm)
8/6/2025
Calcium
Detected: 27 MG/L (ppm)
8/6/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 148 MG/L (ppm)
8/6/2025
pH
Detected: 7.2 PH
8/6/2025
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: 120 MG/L (ppm)
8/6/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 4.2 UG/L (ppb)
1/15/2025
Trichloroaceticacid
Detected: 3.3 UG/L (ppb)
1/15/2025
Dibromoaceticacid
Detected: 2.6 UG/L (ppb)
1/15/2025
Aggressive Index
Detected: 11.11 AGGR
8/6/2025
Alkalinity, Total
Detected: 120 MG/L (ppm)
8/6/2025
TDS
Detected: 180 MG/L (ppm)
8/6/2025
Turbidity
Detected: 0.5 NTU
8/6/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 340 UMHO/CM
8/6/2025
Color
Detected: 6 UNITS
8/6/2025
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.