Microbial · 2024

Total Coliform in Tacoma, WA tap water

Detected — no federal limit

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

The measurement

StatisticValue
Running annual avg
Our
0.04 %
Range
Of Level Detected
1

Verbatim from Tacoma, WA'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 Tacoma, WA compares

Nearby systems also reporting Total Coliform:

People also ask

+Is there Total Coliform in Tacoma, WA tap water?

Yes — Tacoma, WA's 2024 Consumer Confidence Report lists Total Coliform at 0.04 %. Tacoma, WA'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 MCLG 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.

+Where does this Total Coliform measurement come from?

This page reproduces the Total Coliform entry from the 2024 Consumer Confidence Report published by the Tacoma, WA 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/wa/tacoma/2024/source.

Full report
All Tacoma, WA water-quality data →
Every contaminant measured in the 2024 report.
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Every public water system measuring Total Coliform, ranked.