SAN FERNANDO-CITY, WATER DEPT. Water Quality Report
Serving roughly 23,946 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for SAN FERNANDO-CITY, WATER DEPT.
1 water provider directly on file, serving roughly 23,946 people in Los Angeles County, California.
Quick answer: SAN FERNANDO-CITY, WATER DEPT. has no violations on file and no single reading stands out against its peers (601 other providers in this area). It serves roughly 23,946 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
TTHM
Bromoform
Bromodichloromethane
Dibromochloromethane
Chloroform
Dibromoaceticacid
Nitrate
Alkalinity, Total
Alkalinity, Bicarbonate
Sulfate
Chloride
Perchlorate
Conductivity (at 25°C)
Utility SAN FERNANDO-CITY, WATER DEPT.Population served 23,946Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 10 UG/L (ppb)
10/29/2025
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.
Bromoform
Detected: 3.5 UG/L (ppb)
10/29/2025
Bromodichloromethane
Detected: 1.6 UG/L (ppb)
10/29/2025
Dibromochloromethane
Detected: 3.9 UG/L (ppb)
10/29/2025
Chloroform
Detected: 1.2 UG/L (ppb)
10/29/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 4.3 MG/L (ppm)
10/29/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 62 MG/L (ppm)
10/22/2025
Chloride
Detected: 36 MG/L (ppm)
10/22/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 200 MG/L (ppm)
10/22/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dibromoaceticacid
Detected: 1.5 UG/L (ppb)
7/16/2025
Alkalinity, Total
Detected: 200 MG/L (ppm)
9/25/2025
Perchlorate
Detected: 1.4 UG/L (ppb)
10/29/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 720 UMHO/CM
10/22/2025
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.