YUBA CITY is served by 2 water providers on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
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Results for YUBA CITY, CA
2 water providers on file serving this city.
Quick answer: YUBA CITY's water has no violations on file and no single reading stands out against its peers (2 other providers in this area). It serves roughly 70,256 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Carbon, Total
TDS
Fluoride
pH
Odor
Chromium, Hex
Conductivity (at 25°C)
Arsenic
Lead
Copper, Free
Violations on file
Arsenic
Older/archived health-based violation
Found at 1 of 2 providers
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.01333 mg/L (ppm)
Found at 2 providers
Chromium, Hex
Detected: 0.17 UG/L (ppb)
4/17/2025
Arsenic
Detected: 12.9 UG/L (ppb)
10/7/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Lead
Detected: 0.6 UG/L (ppb)
7/17/2025
A metal that can leach from old pipes, solder, and fixtures. Current medical guidance holds there is no truly safe level of lead exposure, especially for children and pregnant women.
Copper, Free
Detected: 12.4 UG/L (ppb)
7/17/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 16 UG/L (ppb)
8/6/2025
TTHM
Detected: 35 UG/L (ppb)
10/1/2025
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: 34 UG/L (ppb)
10/1/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 1.6 UG/L (ppb)
10/1/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.709 MG/L (ppm)
10/2/2025
Often added deliberately for dental health; can also occur naturally.
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
pH
Detected: 8.8 PH
10/7/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 5.1 UG/L (ppb)
8/6/2025
Trichloroaceticacid
Detected: 10 UG/L (ppb)
8/6/2025
Carbon, Total
Detected: 0.96 MG/L (ppm)
10/2/2025
TDS
Detected: 171 MG/L (ppm)
10/7/2025
Odor
Detected: 1 TON
10/2/2025
Conductivity (at 25°C)
Detected: 122 UMHO/CM
10/2/2025
Filtration considerations: General system types, not a specific product recommendation.