NEVADA CITY is served by 2 water providers on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for NEVADA CITY, CA
2 water providers on file serving this city.
Quick answer: NEVADA 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 3,148 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
Aluminum
Alkalinity, Total
Alkalinity, Bicarbonate
Magnesium
Calcium
Sodium
TDS
Chloride
Sulfate
Turbidity
pH
Arsenic
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.000903 mg/L (ppm)
12/31/2023
Aluminum
Detected: 12.1 UG/L (ppb)
10/1/2025
Arsenic
Detected: 2.3 UG/L (ppb)
6/4/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 24 UG/L (ppb)
10/8/2025
TTHM
Detected: 31 UG/L (ppb)
10/8/2025
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: 29 UG/L (ppb)
10/8/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 1.9 UG/L (ppb)
10/8/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 1.55 MG/L (ppm)
6/4/2025
Sulfate
Detected: 1.51 MG/L (ppm)
6/4/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 1.2 MG/L (ppm)
6/4/2025
Calcium
Detected: 3.34 MG/L (ppm)
6/4/2025
Sodium
Detected: 2.46 MG/L (ppm)
6/4/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
pH
Detected: 7.46 PH
6/4/2025
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: 15 MG/L (ppm)
9/3/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 11 UG/L (ppb)
10/8/2025
Trichloroaceticacid
Detected: 13 UG/L (ppb)
10/8/2025
Carbon, Total
Detected: 2.16 MG/L (ppm)
9/3/2025
Alkalinity, Total
Detected: 15 MG/L (ppm)
9/3/2025
TDS
Detected: 44 MG/L (ppm)
6/4/2025
Turbidity
Detected: 0.771 NTU
6/4/2025
A measure of water cloudiness from suspended particles.
Filtration considerations: General system types, not a specific product recommendation.
Contaminant
Whole-House Carbon
Under-Sink RO
Under-Sink Carbon
Total Trihalomethanes (TTHM)
Yes
Yes
Yes
Haloacetic Acids (HAA5)
Yes
Yes
Yes
Chloroform
Yes
Yes
Yes
Chlorine / Taste
Yes
Yes
Yes
Sediment / Turbidity
Yes
Yes
Yes
Trichloroethylene
Yes
Yes
Yes
Tetrachloroethylene
Yes
Yes
Yes
cis-1,2-Dichloroethylene
Yes
Yes
Yes
1,1-Dichloroethylene
Yes
Yes
Yes
Bromoform
Yes
Yes
Yes
Bromodichloromethane
Yes
Yes
Yes
Dibromochloromethane
Yes
Yes
Yes
1,1,2-Trichloroethane
Yes
Yes
Yes
Vinyl Chloride
Yes
Yes
Yes
Carbon Tetrachloride
Yes
Yes
Yes
Benzene
Yes
Yes
Yes
Toluene
Yes
Yes
Yes
Xylene
Yes
Yes
Yes
Totalhaloaceticacids (HAA5)
Yes
Yes
Yes
Lead
Partial
Yes
Partial
Arsenic
Partial
Yes
Partial
Chromium-6 (Hexavalent)
Partial
Yes
Partial
Copper
Partial
Yes
Partial
Combined Uranium
Partial
Yes
Partial
PFOA
Partial
Yes*
Partial
PFOS
Partial
Yes*
Partial
Nitrate
Partial
Yes
Partial
Combined Radium
Partial
Yes
Partial
Dichloroaceticacid
Partial
Yes
Partial
Trichloroaceticacid
Partial
Yes
Partial
Carbon, Total
Partial
Yes
Partial
Aluminum
Partial
Yes
Partial
Alkalinity, Total
Partial
Yes
Partial
TDS
Partial
Yes
Partial
Chloride
Partial
Yes
Partial
Sulfate
Partial
Yes
Partial
Coliform Bacteria (indicator)
No
Yes
No
Alkalinity, Bicarbonate
No
No
No
Magnesium
No
Partial
No
Calcium
No
Partial
No
Sodium
No
Partial
No
pH
No
No
No
Individual water providers
CITY OF NEVADA CITYNo violations on file — pop. 3,148
MOTHER TRUCKERS WATER SYSTEMNo violations on file — pop. 450