Serving roughly 27,294 people in Placer County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for PLACER CWA - AUBURN/BOWMAN
1 water provider directly on file, serving roughly 27,294 people in Placer County, California.
Quick answer: PLACER CWA - AUBURN/BOWMAN has no violations on file. One reading is worth knowing about: Turbidity was measured at 4.3NTU, 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
Lead
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Copper, Free
Aggressive Index
Carbon, Total
Magnesium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Alkalinity, Carbonate
TDS
Chloride
Sulfate
Turbidity
Radium-228
Combined Radium (-226 & -228)
Gross Alpha Particle Activity
pH
Manganese
Nickel
Aluminum
Zinc
Conductivity (at 25°C)
Utility PLACER CWA - AUBURN/BOWMANPopulation served 27,294Owner 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
Lead
Detected: 8.05 UG/L (ppb)
7/7/2025
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: 87.1 UG/L (ppb)
7/7/2025
Manganese
Detected: 218 UG/L (ppb)
8/7/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Nickel
Detected: 20.5 UG/L (ppb)
8/7/2025
Aluminum
Detected: 94.4 UG/L (ppb)
8/7/2025
Zinc
Detected: 485 UG/L (ppb)
8/7/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 19.2 UG/L (ppb)
8/7/2025
TTHM
Detected: 43.8 UG/L (ppb)
8/7/2025
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: 41.7 UG/L (ppb)
8/7/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 2.1 UG/L (ppb)
8/7/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 5.94 MG/L (ppm)
8/7/2025
Sulfate
Detected: 2.76 MG/L (ppm)
8/7/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 2.15 MG/L (ppm)
8/7/2025
Sodium
Detected: 7.46 MG/L (ppm)
8/7/2025
Calcium
Detected: 4.92 MG/L (ppm)
8/7/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 21.1 MG/L (ppm)
8/7/2025
Gross Alpha Particle Activity
Detected: 1.74 PCI/L
8/7/2025
pH
Detected: 8.95 PH
8/7/2025
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: 16.3 MG/L (ppm)
8/7/2025
Alkalinity, Carbonate
Detected: 9.75 MG/L (ppm)
8/7/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 8.8 UG/L (ppb)
8/7/2025
Trichloroaceticacid
Detected: 10.4 UG/L (ppb)
8/7/2025
Aggressive Index
Detected: 10.8 AGGR
8/7/2025
Carbon, Total
Detected: 0.7 MG/L (ppm)
8/7/2025
Alkalinity, Total
Detected: 26.1 MG/L (ppm)
8/7/2025
TDS
Detected: 53 MG/L (ppm)
8/7/2025
Turbidity
Detected: 4.3 NTU
8/7/2025
A measure of water cloudiness from suspended particles.
Radium-228
Detected: 0.301 PCI/L
8/7/2025
Combined Radium (-226 & -228)
Detected: 0.426 PCI/L
8/7/2025
A naturally occurring radioactive element found in some groundwater.
Conductivity (at 25°C)
Detected: 80 UMHO/CM
8/7/2025
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.