SAN JACINTO 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
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Results for SAN JACINTO, CA
1 water provider on file serving this city.
Quick answer: SAN JACINTO'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 18,950 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Copper Summary
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dibromoaceticacid
Dichloroaceticacid
Iron
Manganese
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Sulfate
Chloride
Fluoride
Nitrate
Silica
Carbon, Total
Turbidity
Gross Alpha Particle Activity
pH
Barium
Zinc
Copper, Free
Conductivity (at 25°C)
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0012 mg/L (ppm)
12/31/2023
Copper Summary
Detected: 1.9 mg/L (ppm)
12/31/2005
Iron
Detected: 90 UG/L (ppb)
10/1/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 24 UG/L (ppb)
10/1/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Barium
Detected: 65 UG/L (ppb)
3/19/2025
Zinc
Detected: 4.2 UG/L (ppb)
8/13/2025
Copper, Free
Detected: 0.6 UG/L (ppb)
8/13/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 6 UG/L (ppb)
9/10/2025
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: 0.96 UG/L (ppb)
9/10/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 0.87 UG/L (ppb)
9/10/2025
Bromodichloromethane
Detected: 2 UG/L (ppb)
9/10/2025
Dibromochloromethane
Detected: 2.3 UG/L (ppb)
9/10/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 9.5 MG/L (ppm)
8/13/2025
Chloride
Detected: 11 MG/L (ppm)
8/13/2025
Fluoride
Detected: 0.19 MG/L (ppm)
8/13/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.69 MG/L (ppm)
9/3/2025
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: 3.73 MG/L (ppm)
8/13/2025
Potassium
Detected: 3 MG/L (ppm)
8/13/2025
Sodium
Detected: 21.9 MG/L (ppm)
8/13/2025
Calcium
Detected: 40.5 MG/L (ppm)
8/13/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 117 MG/L (ppm)
8/13/2025
Gross Alpha Particle Activity
Detected: 2.63 PCI/L
3/19/2025
pH
Detected: 8.1 PH
3/19/2025
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: 165 MG/L (ppm)
8/13/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dibromoaceticacid
Detected: 1.9 UG/L (ppb)
9/10/2025
Dichloroaceticacid
Detected: 1.4 UG/L (ppb)
9/10/2025
Alkalinity, Total
Detected: 135 MG/L (ppm)
8/13/2025
TDS
Detected: 209 MG/L (ppm)
8/13/2025
Silica
Detected: 24.8 MG/L (ppm)
8/13/2025
Carbon, Total
Detected: 0.66 MG/L (ppm)
8/13/2025
Turbidity
Detected: 0.15 NTU
3/19/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 329 UMHO/CM
8/13/2025
Filtration considerations: General system types, not a specific product recommendation.