LODI is served by 1 water provider on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for LODI, CA
1 water provider on file serving this city.
Quick answer: LODI's water has no violations on file and no single reading stands out against its peers (1 other providers in this area). It serves roughly 68,272 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
PFPEA
PFHPA
PFHXS
PFOA
PFHXA
PFBS
PFOS
Nitrate
Langelier Index (pH(s))
Langelier Index (Source Temp.)
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Sulfate
Chloride
Fluoride
Turbidity
Combined Uranium
pH
1, 2, 3-Trichloropropane
Iron
1, 2-Dibromo-3-Chloropropane
Chromium, Hex
Trichloroethylene
Tetrachloroethylene
Cis-1, 2-Dichloroethylene
1, 1-Dichloroethylene
Chromium
Barium
Arsenic
Conductivity (at 25°C)
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dibromochloromethane
Bromoform
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: 11 PCI/L
8/14/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Iron
Detected: 10 UG/L (ppb)
8/12/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Chromium, Hex
Detected: 1.1 UG/L (ppb)
2/5/2025
Chromium
Detected: 4.6 UG/L (ppb)
8/14/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 210 UG/L (ppb)
8/14/2025
Arsenic
Detected: 2.8 UG/L (ppb)
8/14/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 4.5 UG/L (ppb)
10/1/2025
TTHM
Detected: 9.4 UG/L (ppb)
10/1/2025
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.
Chloroform
Detected: 7.6 UG/L (ppb)
10/1/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 1.3 UG/L (ppb)
10/1/2025
Dibromochloromethane
Detected: 0.52 UG/L (ppb)
10/1/2025
Bromoform
Detected: 5.1 UG/L (ppb)
7/1/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 2.7 MG/L (ppm)
8/14/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 29 MG/L (ppm)
8/14/2025
Chloride
Detected: 36 MG/L (ppm)
8/14/2025
Fluoride
Detected: 0.1 MG/L (ppm)
8/14/2025
Often added deliberately for dental health; can also occur naturally.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 25 MG/L (ppm)
8/14/2025
Potassium
Detected: 7.3 MG/L (ppm)
8/14/2025
Sodium
Detected: 31 MG/L (ppm)
8/14/2025
Calcium
Detected: 61 MG/L (ppm)
8/14/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: 1.4 LANG
8/14/2025
Hardness, Total (ASCACO3)
Detected: 260 MG/L (ppm)
8/14/2025
pH
Detected: 8.1 PH
8/14/2025
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
PFPEA
Detected: 0.003 µg/L (ppb)
8/26/2024
PFHPA
Detected: 0.0033 µg/L (ppb)
2/15/2024
PFHXS
Detected: 0.004 µg/L (ppb)
8/26/2024
PFOA
Detected: 0.0041 µg/L (ppb)
5/23/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXA
Detected: 0.0034 µg/L (ppb)
8/26/2024
PFBS
Detected: 0.0036 µg/L (ppb)
8/26/2024
PFOS
Detected: 0.0056 µg/L (ppb)
5/23/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
1, 2, 3-Trichloropropane
Detected: 0.016 UG/L (ppb)
10/21/2025
Trichloroethylene
Detected: 9 UG/L (ppb)
10/1/2025
Tetrachloroethylene
Detected: 47 UG/L (ppb)
10/1/2025
Cis-1, 2-Dichloroethylene
Detected: 1.3 UG/L (ppb)
8/13/2025
1, 1-Dichloroethylene
Detected: 1.7 UG/L (ppb)
10/1/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 240 MG/L (ppm)
8/14/2025
Other
Additional substances tested that don't fit neatly into the categories above
Langelier Index (Source Temp.)
Detected: 0.82 LANG
8/14/2025
Alkalinity, Total
Detected: 240 MG/L (ppm)
8/14/2025
TDS
Detected: 430 MG/L (ppm)
8/14/2025
Turbidity
Detected: 0.15 NTU
8/14/2025
A measure of water cloudiness from suspended particles.
1, 2-Dibromo-3-Chloropropane
Detected: 0.023 UG/L (ppb)
10/21/2025
Conductivity (at 25°C)
Detected: 660 UMHO/CM
8/14/2025
Filtration considerations: General system types, not a specific product recommendation.