Serving roughly 24,285 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for PHELAN PINON HILLS CSD
1 water provider directly on file, serving roughly 24,285 people in San Bernardino County, California.
Quick answer: PHELAN PINON HILLS CSD has no violations on file. One reading is worth knowing about: Chromium, Hex was measured at 21UG/L, among the highest of the 669 providers on file in this area. It's the most notable figure in this system's record among its 669 local peers.
Lead Summary
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Sulfate
Chloride
Fluoride
Nitrate
Nitrate-Nitrite
Turbidity
Radium-228
Combined Uranium
Combined Radium (-226 & -228)
pH
Odor
Vanadium, Total
Chromium, Hex
Chromium
Arsenic
Selenium
Conductivity (at 25°C)
Utility PHELAN PINON HILLS CSDPopulation served 24,285Owner 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)
12/31/2024
Combined Uranium
Detected: 1.4 PCI/L
8/6/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Vanadium, Total
Detected: 26 UG/L (ppb)
9/4/2025
Chromium, Hex
Detected: 21 UG/L (ppb)
10/1/2025
Chromium
Detected: 20 UG/L (ppb)
9/4/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Arsenic
Detected: 3.1 UG/L (ppb)
9/4/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Selenium
Detected: 5.4 UG/L (ppb)
7/1/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 81 MG/L (ppm)
9/4/2025
Chloride
Detected: 2.9 MG/L (ppm)
9/4/2025
Fluoride
Detected: 0.4 MG/L (ppm)
9/4/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.46 MG/L (ppm)
7/2/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrate-Nitrite
Detected: 0.6 MG/L (ppm)
7/1/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 1.8 MG/L (ppm)
9/4/2025
Potassium
Detected: 2.7 MG/L (ppm)
9/4/2025
Sodium
Detected: 70 MG/L (ppm)
9/4/2025
Calcium
Detected: 11 MG/L (ppm)
9/4/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 35 MG/L (ppm)
9/4/2025
pH
Detected: 8.5 PH
9/4/2025
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: 120 MG/L (ppm)
9/4/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 100 MG/L (ppm)
9/4/2025
TDS
Detected: 270 MG/L (ppm)
9/4/2025
Turbidity
Detected: 0.19 NTU
9/4/2025
A measure of water cloudiness from suspended particles.
Radium-228
Detected: 0.199 PCI/L
8/6/2025
Combined Radium (-226 & -228)
Detected: 0.937 PCI/L
8/6/2025
A naturally occurring radioactive element found in some groundwater.
Odor
Detected: 1 TON
9/4/2025
Conductivity (at 25°C)
Detected: 390 UMHO/CM
9/4/2025
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.