Microbial · 2024

Total Coliform in San Lorenzo, CA tap water

Detected — no federal limit

San Lorenzo, CA's 2024 report shows Total Coliform detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Reported level
Walnut Creek
0.3 %
Average
EBMUD Results WATER TREATMENT PLANTS Individual Sample Results* Walnut Creek Lafayette Orinda Sobrante USL
0.3
Reported level
Orinda
0.3 %
Reported level
Sobrante
0.3 %
Reported level
USL
0.3 %
Reported level
Lafayette
0.3 %

Verbatim from San Lorenzo, CA's 2024 Consumer Confidence Report — source document ↗

About Total Coliform

A group of bacteria used as an indicator of overall water-system sanitation.

Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.

How San Lorenzo, CA compares

1 of the 178 systems measuring Total Coliform on The Water Map have it at or above the federal limit:

Nearby systems also reporting Total Coliform:

People also ask

+Is there Total Coliform in San Lorenzo, CA tap water?

Yes — San Lorenzo, CA's 2024 Consumer Confidence Report lists Total Coliform at 0.3. San Lorenzo, CA's 2024 report shows Total Coliform detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Total Coliform in drinking water?

The federal Public health goal for Total Coliform is 0 %. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.

+What is Total Coliform?

A group of bacteria used as an indicator of overall water-system sanitation. Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.

+Which other U.S. cities have Total Coliform over the federal limit?

1 of the 178 systems on The Water Map measuring Total Coliform report it at or above the federal limit. Examples include Thornton, CO.

+Where does this Total Coliform measurement come from?

This page reproduces the Total Coliform entry from the 2024 Consumer Confidence Report published by the San Lorenzo, CA water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/ca/san-lorenzo/2024/source.

Full report
All San Lorenzo, CA water-quality data →
Every contaminant measured in the 2024 report.
Contaminant pillar
Total Coliform across the U.S. →
Every public water system measuring Total Coliform, ranked.