Serving roughly 25,252 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for SUNNY SLOPE WATER CO.
1 water provider directly on file, serving roughly 25,252 people in Los Angeles County, California.
Quick answer: SUNNY SLOPE WATER CO. has no violations on file. One reading is worth knowing about: 1, 2, 3-Trichloropropane was measured at 0.16UG/L, among the highest of the 601 providers on file in this area. It's the most notable figure in this system's record among its 601 local peers.
Lead Summary
TTHM
Bromodichloromethane
Dibromochloromethane
Chloroform
Trichloroaceticacid
Dibromoaceticacid
Nitrate
Chromium, Hex
Carbontetrachloride
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Alkalinity, Total
Alkalinity, Bicarbonate
Foamingagents (SURFACTANTS)
TDS
Sulfate
Chloride
Fluoride
Turbidity
Gross Alpha Particle Activity
pH
Odor
Boron, Total
1, 2, 3-Trichloropropane
Trichloroethylene
Tetrachloroethylene
Perchlorate
Conductivity (at 25°C)
Utility SUNNY SLOPE WATER CO.Population served 25,252Owner Private
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)
12/31/2022
Chromium, Hex
Detected: 8.8 UG/L (ppb)
10/6/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 4.5 UG/L (ppb)
7/29/2025
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.
Bromodichloromethane
Detected: 1.3 UG/L (ppb)
7/29/2025
Dibromochloromethane
Detected: 1.5 UG/L (ppb)
7/29/2025
Chloroform
Detected: 1.2 UG/L (ppb)
7/29/2025
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: 2 MG/L (ppm)
10/20/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 24 MG/L (ppm)
3/3/2025
Chloride
Detected: 8.2 MG/L (ppm)
3/3/2025
Fluoride
Detected: 0.81 MG/L (ppm)
3/3/2025
Often added deliberately for dental health; can also occur naturally.
Boron, Total
Detected: 130 UG/L (ppb)
3/3/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 9.1 MG/L (ppm)
3/3/2025
Potassium
Detected: 1.3 MG/L (ppm)
3/3/2025
Sodium
Detected: 28 MG/L (ppm)
3/3/2025
Calcium
Detected: 38 MG/L (ppm)
3/3/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 130 MG/L (ppm)
3/3/2025
Gross Alpha Particle Activity
Detected: 7.98 PCI/L
9/18/2025
pH
Detected: 8.1 PH
3/3/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Carbontetrachloride
Detected: 0.81 UG/L (ppb)
10/6/2025
1, 2, 3-Trichloropropane
Detected: 0.16 UG/L (ppb)
9/8/2025
Trichloroethylene
Detected: 0.79 UG/L (ppb)
10/6/2025
Tetrachloroethylene
Detected: 0.78 UG/L (ppb)
10/6/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 170 MG/L (ppm)
3/3/2025
Other
Additional substances tested that don't fit neatly into the categories above
Trichloroaceticacid
Detected: 1.1 UG/L (ppb)
4/28/2025
Dibromoaceticacid
Detected: 1.2 UG/L (ppb)
4/28/2025
Alkalinity, Total
Detected: 140 MG/L (ppm)
3/3/2025
Foamingagents (SURFACTANTS)
Detected: 0.14 MG/L (ppm)
3/3/2025
TDS
Detected: 200 MG/L (ppm)
9/18/2025
Turbidity
Detected: 3.1 NTU
9/8/2025
A measure of water cloudiness from suspended particles.
Odor
Detected: 1 TON
10/6/2025
Perchlorate
Detected: 1 UG/L (ppb)
9/18/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 360 UMHO/CM
3/3/2025
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.