Serving roughly 54,538 people in Placer County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for CITY OF LINCOLN
1 water provider directly on file, serving roughly 54,538 people in Placer County, California.
Quick answer: CITY OF LINCOLN has no violations on file. One reading is worth knowing about: Nitrate-Nitrite was measured at 3.8MG/L, among the highest of the 246 providers on file in this area. It's the most notable figure in this system's record among its 246 local peers.
Lead Summary
PFHXS
PFOS
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Fluoride
Nitrate-Nitrite
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Chromium, Hex
Barium
Conductivity (at 25°C)
Utility CITY OF LINCOLNPopulation served 54,538Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2027
Chromium, Hex
Detected: 1.7 UG/L (ppb)
1/27/2025
Barium
Detected: 52 UG/L (ppb)
1/27/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 20 UG/L (ppb)
10/16/2025
TTHM
Detected: 39 UG/L (ppb)
10/16/2025
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: 37 UG/L (ppb)
10/16/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 2.1 UG/L (ppb)
10/16/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.24 MG/L (ppm)
1/27/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 3.8 MG/L (ppm)
1/27/2025
Nitrate
Detected: 3.8 MG/L (ppm)
1/27/2025
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
Calcium
Detected: 17 MG/L (ppm)
1/27/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFHXS
Detected: 0.0085 µg/L (ppb)
1/16/2025
PFOS
Detected: 0.0043 µg/L (ppb)
1/16/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 98 MG/L (ppm)
1/27/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 8.4 UG/L (ppb)
10/16/2025
Trichloroaceticacid
Detected: 11 UG/L (ppb)
10/16/2025
Alkalinity, Total
Detected: 98 MG/L (ppm)
1/27/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 2.4 NG/L (ppt)
10/16/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 8 NG/L (ppt)
10/16/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 4.5 NG/L (ppt)
10/16/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 2.2 NG/L (ppt)
10/16/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Conductivity (at 25°C)
Detected: 440 UMHO/CM
1/27/2025
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.