PURISSIMA HILLS WATER DISTRICT Water Quality Report
Serving roughly 6,245 people in Santa Clara County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for PURISSIMA HILLS WATER DISTRICT
1 water provider directly on file, serving roughly 6,245 people in Santa Clara County, California.
Quick answer: PURISSIMA HILLS WATER DISTRICT has no violations on file. One reading is worth knowing about: Chloroform was measured at 55.31UG/L, among the highest of the 320 providers on file in this area. It's the most notable figure in this system's record among its 320 local peers.
Lead Summary
Carbon, Total
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Utility PURISSIMA HILLS WATER DISTRICTPopulation served 6,245Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.006 mg/L (ppm)
12/31/2023
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 36.5 UG/L (ppb)
9/2/2025
TTHM
Detected: 56.57 UG/L (ppb)
9/2/2025
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: 55.31 UG/L (ppb)
9/2/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 1.26 UG/L (ppb)
9/2/2025
Other
Additional substances tested that don't fit neatly into the categories above
Carbon, Total
Detected: 1.81 MG/L (ppm)
9/2/2025
Dichloroaceticacid
Detected: 22.8 UG/L (ppb)
9/2/2025
Trichloroaceticacid
Detected: 13.7 UG/L (ppb)
9/2/2025
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.