Serving roughly 89,544 people in Placer County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for PLACER CWA - FOOTHILL
1 water provider directly on file, serving roughly 89,544 people in Placer County, California.
Quick answer: PLACER CWA - FOOTHILL has no violations on file. One reading is worth knowing about: Chromium, Hex was measured at 3.2UG/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
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Aggressive Index
Magnesium
Hardness, Total (ASCACO3)
Calcium
Sodium
Alkalinity, Total
Alkalinity, Bicarbonate
Alkalinity, Carbonate
Carbon, Total
TDS
Chloride
Sulfate
Radium-228
Gross Alpha Particle Activity
pH
Chromium, Hex
Conductivity (at 25°C)
Color
Perfluorobutanesulfonicacid (PFBS)
Perfluoroheptanoicacid (PFHPA)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Combined Radium (-226 & -228)
Odor
Utility PLACER CWA - FOOTHILLPopulation served 89,544Owner 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)
12/31/2025
Chromium, Hex
Detected: 3.2 UG/L (ppb)
8/14/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 20.2 UG/L (ppb)
8/12/2025
TTHM
Detected: 50.4 UG/L (ppb)
8/12/2025
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: 47.9 UG/L (ppb)
8/12/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 2.5 UG/L (ppb)
8/12/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 5.05 MG/L (ppm)
8/12/2025
Sulfate
Detected: 8.24 MG/L (ppm)
8/12/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 1.88 MG/L (ppm)
8/12/2025
Calcium
Detected: 4.36 MG/L (ppm)
8/12/2025
Sodium
Detected: 7.78 MG/L (ppm)
8/12/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 18.6 MG/L (ppm)
8/12/2025
Gross Alpha Particle Activity
Detected: 1.2 PCI/L
8/14/2025
pH
Detected: 8.92 PH
8/12/2025
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: 17.3 MG/L (ppm)
8/12/2025
Alkalinity, Carbonate
Detected: 4.02 MG/L (ppm)
8/12/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 7.4 UG/L (ppb)
8/12/2025
Trichloroaceticacid
Detected: 12.8 UG/L (ppb)
8/12/2025
Aggressive Index
Detected: 10.6 AGGR
8/12/2025
Alkalinity, Total
Detected: 21.3 MG/L (ppm)
8/12/2025
Carbon, Total
Detected: 0.51 MG/L (ppm)
8/14/2025
TDS
Detected: 28 MG/L (ppm)
8/12/2025
Radium-228
Detected: 0.837 PCI/L
8/14/2025
Conductivity (at 25°C)
Detected: 75.5 UMHO/CM
8/12/2025
Color
Detected: 7 UNITS
8/12/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 3 NG/L (ppt)
8/14/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 2.1 NG/L (ppt)
8/14/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 2.1 NG/L (ppt)
8/14/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 1.8 NG/L (ppt)
8/14/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 5.5 NG/L (ppt)
8/14/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 4.9 NG/L (ppt)
8/14/2025
Perfluorobutanoicacid (PFBA)
Detected: 3.2 NG/L (ppt)
8/14/2025
Perfluoropentanoicacid (PFPEA)
Detected: 4.3 NG/L (ppt)
8/14/2025
Combined Radium (-226 & -228)
Detected: 0.862 PCI/L
8/14/2025
A naturally occurring radioactive element found in some groundwater.
Odor
Detected: 1.5 TON
8/12/2025
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.