Serving roughly 3,819 people in Inyo County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for BISHOP, CITY OF
1 water provider directly on file, serving roughly 3,819 people in Inyo County, California.
Quick answer: BISHOP, CITY OF has no violations on file and no single reading stands out against its peers (175 other providers in this area). It serves roughly 3,819 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Aggressive Index
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
Foamingagents (SURFACTANTS)
TDS
Chloride
Sulfate
Fluoride
Nitrate-Nitrite
Nitrate
Gross Alpha Particle Activity
pH
Conductivity (at 25°C)
Utility BISHOP, CITY OFPopulation served 3,819Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 1.3 MG/L (ppm)
6/11/2025
Sulfate
Detected: 6.2 MG/L (ppm)
6/11/2025
Fluoride
Detected: 0.16 MG/L (ppm)
6/11/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 0.27 MG/L (ppm)
6/11/2025
Nitrate
Detected: 0.27 MG/L (ppm)
6/11/2025
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)
6/11/2025
Potassium
Detected: 3.1 MG/L (ppm)
6/11/2025
Sodium
Detected: 10 MG/L (ppm)
6/11/2025
Calcium
Detected: 27 MG/L (ppm)
6/11/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: -0.55 LANG
6/11/2025
Hardness, Total (ASCACO3)
Detected: 84 MG/L (ppm)
6/11/2025
Gross Alpha Particle Activity
Detected: 3.32 PCI/L
6/11/2025
pH
Detected: 7.6 PH
6/11/2025
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: 98 MG/L (ppm)
6/11/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 11.4 AGGR
6/11/2025
Alkalinity, Total
Detected: 98 MG/L (ppm)
6/11/2025
Foamingagents (SURFACTANTS)
Detected: 0.061 MG/L (ppm)
6/11/2025
TDS
Detected: 140 MG/L (ppm)
6/11/2025
Conductivity (at 25°C)
Detected: 210 UMHO/CM
6/11/2025
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.