THERMALITO WATER & SEWER DIST Water Quality Report
Serving roughly 12,136 people in Butte County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for THERMALITO WATER & SEWER DIST
1 water provider directly on file, serving roughly 12,136 people in Butte County, California.
Quick answer: THERMALITO WATER & SEWER DIST has no violations on file and no single reading stands out against its peers (160 other providers in this area). It serves roughly 12,136 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
PFOS
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Lead
Chloroform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Bromoform
Monochloroaceticacid
Copper, Free
Gross Alpha Particle Activity
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Radium-228
Utility THERMALITO WATER & SEWER DISTPopulation served 12,136Owner 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
Lead
Detected: 7 UG/L (ppb)
9/13/2025
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.
Copper, Free
Detected: 213 UG/L (ppb)
9/30/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 35 UG/L (ppb)
10/14/2025
TTHM
Detected: 28 UG/L (ppb)
10/14/2025
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: 26 UG/L (ppb)
10/14/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 2 UG/L (ppb)
10/14/2025
Dibromochloromethane
Detected: 1 UG/L (ppb)
10/14/2025
Bromoform
Detected: 3 UG/L (ppb)
10/14/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 2.9 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.
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Gross Alpha Particle Activity
Detected: 1.15 PCI/L
4/1/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFOS
Detected: 0.0046 µg/L (ppb)
7/5/2023
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Lithium
Detected: 35 µg/L (ppb)
7/5/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 15 UG/L (ppb)
10/14/2025
Trichloroaceticacid
Detected: 20 UG/L (ppb)
10/14/2025
Monochloroaceticacid
Detected: 2 UG/L (ppb)
6/25/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 1.9 NG/L (ppt)
10/7/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 2.9 NG/L (ppt)
10/7/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 2.3 NG/L (ppt)
10/7/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Radium-228
Detected: 0.07 PCI/L
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.