Serving roughly 11,316 people in Kern County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for EDWARDS AFB - MAIN BASE
1 water provider directly on file, serving roughly 11,316 people in Kern County, California.
Quick answer: EDWARDS AFB - MAIN BASE has no violations on file. One reading is worth knowing about: Zinc was measured at 220UG/L, among the highest of the 682 providers on file in this area. It's the most notable figure in this system's record among its 682 local peers.
Lead Summary
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Bromoform
Bromodichloromethane
Dibromochloromethane
Chloroform
Dibromoaceticacid
Dichloroaceticacid
Arsenic
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Fluoride
Nitrate
Turbidity
Combined Uranium
Gross Alpha Particle Activity
pH
Lead
Iron
Manganese
Chromium, Hex
Chromium
Barium
Zinc
Conductivity (at 25°C)
Utility EDWARDS AFB - MAIN BASEPopulation served 11,316Owner Federal government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0017 mg/L (ppm)
12/31/2024
Arsenic
Detected: 8.7 UG/L (ppb)
9/30/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Combined Uranium
Detected: 3.46 PCI/L
4/1/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Lead
Detected: 7.3 UG/L (ppb)
4/1/2025
A metal that can leach from old pipes, solder, and fixtures. Current medical guidance holds there is no truly safe level of lead exposure, especially for children and pregnant women.
Iron
Detected: 140 UG/L (ppb)
4/1/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 82 UG/L (ppb)
4/1/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 2.8 UG/L (ppb)
4/1/2025
Chromium
Detected: 3.4 UG/L (ppb)
4/1/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 27 UG/L (ppb)
4/1/2025
Zinc
Detected: 220 UG/L (ppb)
4/1/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 7.7 UG/L (ppb)
8/22/2025
TTHM
Detected: 15 UG/L (ppb)
8/22/2025
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: 8.4 UG/L (ppb)
8/22/2025
Bromodichloromethane
Detected: 1.4 UG/L (ppb)
8/22/2025
Dibromochloromethane
Detected: 5.1 UG/L (ppb)
8/22/2025
Chloroform
Detected: 1.3 UG/L (ppb)
8/22/2025
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
Chloride
Detected: 48 MG/L (ppm)
4/1/2025
Sulfate
Detected: 75 MG/L (ppm)
4/1/2025
Fluoride
Detected: 0.42 MG/L (ppm)
4/1/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.34 MG/L (ppm)
4/1/2025
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: 2.2 MG/L (ppm)
4/1/2025
Sodium
Detected: 93 MG/L (ppm)
4/1/2025
Calcium
Detected: 20 MG/L (ppm)
4/1/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 60 MG/L (ppm)
4/1/2025
Gross Alpha Particle Activity
Detected: 5.86 PCI/L
4/1/2025
pH
Detected: 8.1 PH
4/1/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 17.7 µg/L (ppb)
12/12/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 110 MG/L (ppm)
4/1/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dibromoaceticacid
Detected: 2.6 UG/L (ppb)
8/22/2025
Dichloroaceticacid
Detected: 1.2 UG/L (ppb)
8/22/2025
Alkalinity, Total
Detected: 110 MG/L (ppm)
4/1/2025
TDS
Detected: 320 MG/L (ppm)
4/1/2025
Turbidity
Detected: 0.5 NTU
4/1/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 530 UMHO/CM
4/1/2025
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.