GLENDALE 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 GLENDALE, CA
1 water provider on file serving this city.
Quick answer: GLENDALE'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 188,784 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
PFBA
PFBS
PFHPA
PFHXS
PFOS
PFOA
PFHXA
PFPEA
Lithium
Nitrate
Aggressive Index
Langelier Index (pH(s))
Langelier Index (Source Temp.)
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
Foamingagents (SURFACTANTS)
TDS
Sulfate
Chloride
Fluoride
Turbidity
Combined Uranium
Gross Alpha Particle Activity
pH
TTHM
Carbondioxide
Iron
Manganese
Chromium, Hex
Tetrachloroethylene
Chloroform
Perchlorate
Simazine
Nickel
Chromium
Barium
Copper, Free
Zinc
Conductivity (at 25°C)
Color
Totalhaloaceticacids (HAA5)
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Carbontetrachloride
Trichloroethylene
Perfluorobutanesulfonicacid (PFBS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorohexanesulfonicacid (PFHxS)
Perfluorohexanoicacid (PFHXA)
N-Nitrosomorpholine (NMOR)
Boron, Total
Vanadium, Total
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Combined Uranium
Detected: 12 PCI/L
4/17/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Iron
Detected: 640 UG/L (ppb)
1/23/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 34 UG/L (ppb)
1/23/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 5.2 UG/L (ppb)
3/19/2025
Nickel
Detected: 2.2 UG/L (ppb)
1/23/2025
Chromium
Detected: 1 UG/L (ppb)
1/23/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 140 UG/L (ppb)
1/23/2025
Copper, Free
Detected: 2.8 UG/L (ppb)
1/23/2025
Zinc
Detected: 28 UG/L (ppb)
1/23/2025
Vanadium, Total
Detected: 4.8 UG/L (ppb)
8/12/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 9.7 UG/L (ppb)
8/14/2025
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: 0.74 UG/L (ppb)
8/14/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Totalhaloaceticacids (HAA5)
Detected: 4.2 UG/L (ppb)
8/14/2025
Bromoform
Detected: 3.2 UG/L (ppb)
8/14/2025
Bromodichloromethane
Detected: 2 UG/L (ppb)
8/14/2025
Dibromochloromethane
Detected: 3.8 UG/L (ppb)
8/14/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 0.62 MG/L (ppm)
10/20/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 180 MG/L (ppm)
4/14/2025
Chloride
Detected: 62 MG/L (ppm)
4/14/2025
Fluoride
Detected: 0.67 MG/L (ppm)
7/10/2025
Often added deliberately for dental health; can also occur naturally.
Boron, Total
Detected: 160 UG/L (ppb)
10/13/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 30 MG/L (ppm)
4/14/2025
Potassium
Detected: 3.7 MG/L (ppm)
1/23/2025
Sodium
Detected: 68 MG/L (ppm)
1/23/2025
Calcium
Detected: 120 MG/L (ppm)
4/14/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: 0.45 LANG
1/23/2025
Hardness, Total (ASCACO3)
Detected: 420 MG/L (ppm)
4/14/2025
Gross Alpha Particle Activity
Detected: 8.9 PCI/L
4/17/2025
pH
Detected: 7.9 PH
10/13/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
N-Nitrosomorpholine (NMOR)
Detected: 0.0065 UG/L (ppb)
10/13/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFBA
Detected: 0.0069 µg/L (ppb)
4/17/2025
PFBS
Detected: 0.0118 µg/L (ppb)
4/17/2025
PFHPA
Detected: 0.0046 µg/L (ppb)
4/17/2025
PFHXS
Detected: 0.0055 µg/L (ppb)
4/17/2025
PFOS
Detected: 0.0095 µg/L (ppb)
4/17/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOA
Detected: 0.01 µg/L (ppb)
4/17/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXA
Detected: 0.011 µg/L (ppb)
4/17/2025
PFPEA
Detected: 0.0109 µg/L (ppb)
4/17/2025
Lithium
Detected: 28.5 µg/L (ppb)
7/9/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Tetrachloroethylene
Detected: 59 UG/L (ppb)
3/10/2025
Carbontetrachloride
Detected: 0.76 UG/L (ppb)
3/10/2025
Trichloroethylene
Detected: 84 UG/L (ppb)
3/10/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 220 MG/L (ppm)
10/13/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12 AGGR
1/23/2025
Langelier Index (Source Temp.)
Detected: -0.087 LANG
1/23/2025
Alkalinity, Total
Detected: 220 MG/L (ppm)
10/13/2025
Foamingagents (SURFACTANTS)
Detected: 0.1 MG/L (ppm)
4/14/2025
TDS
Detected: 650 MG/L (ppm)
4/14/2025
Turbidity
Detected: 0.15 NTU
4/14/2025
A measure of water cloudiness from suspended particles.
Carbondioxide
Detected: 38000 UG/L (ppb)
1/23/2025
Perchlorate
Detected: 1.9 UG/L (ppb)
1/23/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Simazine
Detected: 0.049 UG/L (ppb)
7/17/2025
Conductivity (at 25°C)
Detected: 1300 UMHO/CM
1/23/2025
Color
Detected: 5 UNITS
1/23/2025
Dichloroaceticacid
Detected: 1.7 UG/L (ppb)
8/14/2025
Trichloroaceticacid
Detected: 2.6 UG/L (ppb)
2/13/2025
Dibromoaceticacid
Detected: 2.5 UG/L (ppb)
8/14/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 2.5 NG/L (ppt)
9/25/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 4.4 NG/L (ppt)
9/25/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 2.1 NG/L (ppt)
9/25/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanesulfonicacid (PFHxS)
Detected: 2.4 NG/L (ppt)
9/25/2025
Perfluorohexanoicacid (PFHXA)
Detected: 3.7 NG/L (ppt)
9/25/2025
Filtration considerations: General system types, not a specific product recommendation.