Serving roughly 84,757 people in Riverside County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for INDIO WATER AUTHORITY
1 water provider directly on file, serving roughly 84,757 people in Riverside County, California.
Quick answer: INDIO WATER AUTHORITY has no violations on file. One reading is worth knowing about: Odor was measured at 2TON, among the highest of the 451 providers on file in this area. It's the most notable figure in this system's record among its 451 local peers.
Lead Summary
Magnesium
Potassium
Sodium
Calcium
Foamingagents (SURFACTANTS)
TDS
Chloride
Sulfate
Fluoride
Nitrate
Turbidity
Combined Uranium
pH
Molybdenum, Total
Vanadium, Total
Chromium, Hex
Perchlorate
Nickel
Chromium
Barium
Selenium
Copper, Free
Conductivity (at 25°C)
TTHM
Totalhaloaceticacids (HAA5)
Bromoform
Chloroform
Bromodichloromethane
Dibromochloromethane
Gross Alpha Particle Activity
Odor
Utility INDIO WATER AUTHORITYPopulation served 84,757Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Combined Uranium
Detected: 5.5 PCI/L
8/26/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Molybdenum, Total
Detected: 14 UG/L (ppb)
8/26/2025
Vanadium, Total
Detected: 12 UG/L (ppb)
8/26/2025
Chromium, Hex
Detected: 8.6 UG/L (ppb)
10/29/2025
Nickel
Detected: 1.6 UG/L (ppb)
4/15/2025
Chromium
Detected: 8.3 UG/L (ppb)
8/26/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 98 UG/L (ppb)
8/26/2025
Selenium
Detected: 2.4 UG/L (ppb)
8/26/2025
Copper, Free
Detected: 38 UG/L (ppb)
9/8/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 0.77 UG/L (ppb)
10/29/2025
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.
Totalhaloaceticacids (HAA5)
Detected: 4.7 UG/L (ppb)
7/22/2025
Bromoform
Detected: 0.77 UG/L (ppb)
10/29/2025
Chloroform
Detected: 0.56 UG/L (ppb)
4/29/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 0.62 UG/L (ppb)
10/29/2025
Dibromochloromethane
Detected: 1 UG/L (ppb)
10/29/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 38 MG/L (ppm)
8/26/2025
Sulfate
Detected: 130 MG/L (ppm)
8/26/2025
Fluoride
Detected: 0.77 MG/L (ppm)
8/26/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.4 MG/L (ppm)
10/21/2025
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: 7.3 MG/L (ppm)
8/26/2025
Potassium
Detected: 6.4 MG/L (ppm)
8/26/2025
Sodium
Detected: 46 MG/L (ppm)
8/26/2025
Calcium
Detected: 59 MG/L (ppm)
8/26/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
pH
Detected: 8.3 PH
9/23/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Gross Alpha Particle Activity
Detected: 3.56 PCI/L
7/29/2025
Other
Additional substances tested that don't fit neatly into the categories above
Foamingagents (SURFACTANTS)
Detected: 0.12 MG/L (ppm)
8/26/2025
TDS
Detected: 360 MG/L (ppm)
8/26/2025
Turbidity
Detected: 0.1 NTU
9/23/2025
A measure of water cloudiness from suspended particles.
Perchlorate
Detected: 0.64 UG/L (ppb)
10/21/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 590 UMHO/CM
8/26/2025
Odor
Detected: 2 TON
8/26/2025
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.