Statement says "Thallium report debunked" ...Not Exactly

Submitted by WhitesCreek on January 7, 2009 - 9:51am.

The report was accurate all along, the results were misinterpreted. Here's what the EPA report stated:

SAMPLING RESULTS
The Tables 2, 3, and 4 contains summary analytical results for all EPA collected data, sorted by date. Each table includes the Federal Maximum Contaminant Levels (MCL) for comparative purposes. The MCLs represent the maximum permissible level of a contaminant in water delivered to any user of a public water system.

On December 23, 2008, the raw water collected from the river at the Kingston plant intake exceeded the MCL for thallium (0.002 mg/L) with a value of 0.00619 mg/L. None of the samples collected on December 29, 2008 exceeded the MCLs for any analyte. Analysis of the SESD data collected December 30, 2008 indicates that no analytes above the MCLs were detected in either finished or raw water at the three public plants. Similarly, no levels above the MCLs were noted in the residential wells.

The processed water sample taken at the same time showed no thallium above the MCL. We need to watch this stuff closely but let's not freak out unnecessarily. We have plenty to work on as it is.

More discussion at KnoxViews


I am curious about the lag

I am curious about the lag time between the point in time that a sample is collected and the point in time that the results are reported by the lab. If for example, if a water sample is collected at 10:00 am on December 23, are the results available in 2 hours, 24 hours or 48 hours? How long does the process take?

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