KELSEYVILLE CO WATERWORKS DISTRICT 3 Water Quality Report
Serving roughly 4,102 people in Lake County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for KELSEYVILLE CO WATERWORKS DISTRICT 3
1 water provider directly on file, serving roughly 4,102 people in Lake County, California.
Quick answer: KELSEYVILLE CO WATERWORKS DISTRICT 3 has no violations on file. One reading is worth knowing about: Gross Beta Particle Activity was measured at 5.94PCI/L, among the highest of the 291 providers on file in this area. It's the most notable figure in this system's record among its 291 local peers.
Lead Summary
Aggressive Index
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Turbidity
Radium-228
Gross Alpha Particle Activity
Gross Beta Particle Activity
pH
Boron, Total
Iron
Conductivity (at 25°C)
Color
Utility KELSEYVILLE CO WATERWORKS DISTRICT 3Population served 4,102Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0052 mg/L (ppm)
12/31/2024
Iron
Detected: 260 UG/L (ppb)
8/4/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 4.2 MG/L (ppm)
8/4/2025
Sulfate
Detected: 4.2 MG/L (ppm)
8/4/2025
Boron, Total
Detected: 150 UG/L (ppb)
8/4/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 27 MG/L (ppm)
8/4/2025
Sodium
Detected: 7.6 MG/L (ppm)
8/4/2025
Calcium
Detected: 16 MG/L (ppm)
8/4/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 151 MG/L (ppm)
8/4/2025
Gross Alpha Particle Activity
Detected: 1.66 PCI/L
8/4/2025
pH
Detected: 7.62 PH
8/4/2025
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: 160 MG/L (ppm)
8/4/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 11.43 AGGR
8/4/2025
Alkalinity, Total
Detected: 160 MG/L (ppm)
8/4/2025
TDS
Detected: 160 MG/L (ppm)
8/4/2025
Turbidity
Detected: 1 NTU
8/4/2025
A measure of water cloudiness from suspended particles.
Radium-228
Detected: 0.284 PCI/L
8/4/2025
Gross Beta Particle Activity
Detected: 5.94 PCI/L
8/4/2025
Conductivity (at 25°C)
Detected: 290 UMHO/CM
8/4/2025
Color
Detected: 10 UNITS
8/4/2025
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.