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Re: Lead source

How many measurements show elevated lead each year?  Is it consistent over a period or do you get one
measurement. Could it be lab error?

Look to see if any of the manufacturing facilities shuts down during these times.  See if the timing is
related to shut down maintenance or start-up.

Dr. Henry Boyter, Jr.
Ph.D. Chemist

The opinions of Dr. Boyter are provided for informational
purposes only and should not be used as advice.  No
warranty or expression of professionalism is implied.


-----Original Message-----
From: Tim Tuominen <Tim.Tuominen@wlssd.duluth.mn.us>
To: 'p2tech@great-lakes.net' <p2tech@great-lakes.net>
Date: Tuesday, July 14, 1998 12:29 PM
Subject: Lead source

Once per year between July and September we receive a
slug load of lead to our wastewater plant. It does
not seem to be our permitted industries. We have no
battery rebuilding, no electronics mftrs, or eyeglass
mfctrs. We've checked radiator repair shops,
industrial laundries, and furniture strippers. So what
do you think the source is. I wish I could offer you
a reward for the info leading to the Id of the
source. Thanks for any ideas.
Tim Tuominen
Pollution Prevention Chemist
Western Lake Superior Sanitary District
2626 Courtland Street
Duluth, MN 55806
Ph. (218) 722-3336 ext 324
Fax (218) 727-7471
Email tim.tuominen@wlssd.duluth.mn.us