CALIF STATE POLYTECHNICAL UNIV - POMONA Water Quality Report
Serving roughly 29,854 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
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Results for CALIF STATE POLYTECHNICAL UNIV - POMONA
1 water provider directly on file, serving roughly 29,854 people in Los Angeles County, California.
Quick answer: CALIF STATE POLYTECHNICAL UNIV - POMONA currently has an open health-based violation on file: Lead And Copper Rule Revisions, a compliance issue since 10/17/2024. This is active, not historical — see the violation detail below for what EPA's enforcement record shows.
Lead Summary
Copper Summary
Orthophosphate
Totalhaloaceticacids (HAA5)
TTHM
Lead
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Copper, Free
TDS
Nitrate
Turbidity
pH, Field
Perchlorate
Conductivity (at 25°C)
Utility CALIF STATE POLYTECHNICAL UNIV - POMONAPopulation served 29,854Owner State or Territorial Government
Open violation on file
Violations on file
Lead And Copper Rule Revisions
Currently open health violation
Found at 1 of 1 provider
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.00079 mg/L (ppm)
12/31/2025
Copper Summary
Detected: 1.4 mg/L (ppm)
12/31/2005
Lead
Detected: 1.2 UG/L (ppb)
7/16/2025
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: 21 UG/L (ppb)
7/16/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 11 UG/L (ppb)
9/16/2025
TTHM
Detected: 82 UG/L (ppb)
9/16/2025
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: 12 UG/L (ppb)
9/16/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 12 UG/L (ppb)
9/16/2025
Bromodichloromethane
Detected: 28 UG/L (ppb)
9/16/2025
Dibromochloromethane
Detected: 30 UG/L (ppb)
9/16/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 11 MG/L (ppm)
10/21/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Orthophosphate
Detected: 1 MG/L (ppm)
9/9/2025
pH, Field
Detected: 6.9 PH
10/7/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 4.7 UG/L (ppb)
9/16/2025
Trichloroaceticacid
Detected: 2.2 UG/L (ppb)
9/16/2025
Dibromoaceticacid
Detected: 4.4 UG/L (ppb)
9/16/2025
TDS
Detected: 800 MG/L (ppm)
10/7/2025
Turbidity
Detected: 0.11 NTU
4/1/2025
A measure of water cloudiness from suspended particles.
Perchlorate
Detected: 5.6 UG/L (ppb)
10/21/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 1200 UMHO/CM
10/7/2025
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.