PARLIER is served by 2 water providers on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for PARLIER, CA
2 water providers on file serving this city.
Quick answer: PARLIER's water 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
Aggressive Index
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Foamingagents (SURFACTANTS)
TDS
Chloride
Sulfate
Fluoride
Nitrate-Nitrite
Nitrate
Turbidity
Combined Uranium
Gross Alpha Particle Activity
pH
1, 2, 3-Trichloropropane
Iron
1, 2-Dibromo-3-Chloropropane
Chromium, Hex
Trichlorotrifluoroethane
Conductivity (at 25°C)
TTHM
Bromoform
Dibromochloromethane
Violations on file
Lead And Copper Rule Revisions
Currently open health violation
Found at 1 of 2 providers
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Combined Uranium
Detected: 2.3 PCI/L
6/4/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Iron
Detected: 58 UG/L (ppb)
7/18/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Chromium, Hex
Detected: 1.8 UG/L (ppb)
1/22/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 2 UG/L (ppb)
1/3/2025
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: 1.3 UG/L (ppb)
1/3/2025
Dibromochloromethane
Detected: 0.74 UG/L (ppb)
1/3/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 5.1 MG/L (ppm)
7/18/2025
Sulfate
Detected: 16 MG/L (ppm)
7/18/2025
Fluoride
Detected: 0.16 MG/L (ppm)
7/18/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 3.4 MG/L (ppm)
7/18/2025
Nitrate
Detected: 4.9 MG/L (ppm)
10/2/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 4.2 MG/L (ppm)
7/18/2025
Potassium
Detected: 2.2 MG/L (ppm)
7/18/2025
Sodium
Detected: 17 MG/L (ppm)
7/18/2025
Calcium
Detected: 25 MG/L (ppm)
7/18/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: -5.7 LANG
7/18/2025
Hardness, Total (ASCACO3)
Detected: 80 MG/L (ppm)
7/18/2025
Gross Alpha Particle Activity
Detected: 4.75 PCI/L
7/18/2025
pH
Detected: 4.6 PH
7/18/2025
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
1, 2, 3-Trichloropropane
Detected: 0.056 UG/L (ppb)
10/22/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 6.35 AGGR
7/18/2025
Foamingagents (SURFACTANTS)
Detected: 0.069 MG/L (ppm)
7/18/2025
TDS
Detected: 170 MG/L (ppm)
7/18/2025
Turbidity
Detected: 0.39 NTU
7/18/2025
A measure of water cloudiness from suspended particles.
1, 2-Dibromo-3-Chloropropane
Detected: 0.05 UG/L (ppb)
7/18/2025
Trichlorotrifluoroethane
Detected: 9.9 UG/L (ppb)
7/18/2025
Conductivity (at 25°C)
Detected: 660 UMHO/CM
7/18/2025
Filtration considerations: General system types, not a specific product recommendation.