Drinking water quality · 1992
· Verified
What's in City of Cupertino, CA tap water
1 contaminants were measured in the City of Cupertino, CA water system's 1992 annual report. Each is shown below against its federal limit.
- Reporting year
- 1992
- Contaminants measured
- 1
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- CA
Where your water comes from · EPA SDWIS
City of Cupertino, CA's drinking water comes from ground water, drawn from 2 sources.
Source
- FLOWERING PEAR COURT
- FRANCO COURT
Treatment
- MANN STATION CHLORINATION STATION
Distribution
Also buys water from SANTA CLARA VALLEY WATER DISTRICT, SAN JOSE WATER, and 1 more.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based3 violations on record · most recent Feb 1993resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.014 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Approaching the limit |
People also ask about City of Cupertino, CA's water
+Is City of Cupertino, CA tap water safe to drink in 1992?
Every one of the 1 contaminants measured in City of Cupertino, CA's 1992 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in City of Cupertino, CA tap water?
1 contaminants were measured in City of Cupertino, CA's 1992 Consumer Confidence Report, spanning metals. 1 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in City of Cupertino, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Lead. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from City of Cupertino, CA's 1992 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is City of Cupertino, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 1992 report; a new report will replace it once the utility publishes its next annual update.