Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Safety Ratings 11,700+ NHTSA crash test ratings Investigations 5,300+ NHTSA defect investigations Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports Brand History Cross-category recall lookup by company
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

CITY OF CUPERTINO

California — Community Water System — PWSID: CA4310018

System Information

PWSIDCA4310018
System NameCITY OF CUPERTINO
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CitySAN JOSE
ZIP Code95128
Address1221A South Bascom Avenue
OrganizationDELORENZO, SUZANNE
Phone408-918-7254

Population & Service

Population Served16,336
Service Connections4,692

Drinking Water Violations (15)

This water system has 15 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Feb 22, 1993 Mar 31, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Mar 31, 1993 Former Total Trihalomethane Rule
Feb 22, 1993 Mar 31, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Mar 31, 1993 Former Total Trihalomethane Rule
Feb 22, 1993 Mar 31, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Mar 31, 1993 Former Total Trihalomethane Rule
Feb 22, 1993 Mar 31, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Mar 31, 1993 Former Total Trihalomethane Rule
Nov 24, 1992 Jan 22, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Jan 22, 1993 Former Total Trihalomethane Rule
Nov 24, 1992 Jan 22, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Jan 22, 1993 Former Total Trihalomethane Rule
Nov 24, 1992 Jan 22, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Jan 22, 1993 Former Total Trihalomethane Rule
Nov 24, 1992 Jan 22, 1993 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Jan 22, 1993 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule
Sep 1, 1992 Nov 24, 1992 TTHM MCL Yes No .11 MG/L 0.080 mg/L .1 Resolved Nov 24, 1992 Former Total Trihalomethane Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

Browse All Water Systems Water Safety Stats Water Safety Home
Browse All Water Systems Water Systems in California