NC0024406_Selenium_19961001

Page 1
Note for Farrell Keough
From: Dianne Reid
Date: Oct 1, 1996 9:18 AM
Subject: RE: selenium
To: Farrell Keough
Regulation. 15A NCAC 2B .0206.. I don't have copies of your SOP prior to 1992.
From: Farrell Keough on Tue, Oct 1, 1996 9:10 AM
Subject: RE: selenium
To: Dianne Reid
was this just our SOP or was it a reg ?
From: Dianne Reid on Oct 1, 1996 8:55 AM
Subject: RE: selenium
To: Farrell Keough
Prior to 1984, 30Q2 was the flow used to determine limits for toxic substances. So that
would appear to be why it was used in 1982 for the permit limit.
From: Farrell Keough on Tue, Oct 1, 1996 7:52 AM
Subject: RE: selenium
To: Dianne Reid
did you ever find out anything?
From: Greg Thorpe on Sep 19, 1996 4:43 PM
Subject: RE: selenium
To: Farrell Keough
Cc: Beth McGee; Dianne Reid; Steve Zoufaly
I haven't a clue. I'll ask Dianne, by way of copy of this message, to look into the selenium
file and see if she can come up with anything.
From: Farrell Keough on Thu, Sep 19, 1996 2:03 PM
Subject: selenium
To: Greg Thorpe
I've got the Duke - Belews Creek, (Roanoke Basin) permit and in 1982 a 30Q2 was used to
determine the selenium limit, (for both the lake and the later discharge to the Dan River).
Generally we use this flow statistic for aesthestics, (i.e. phenols, etc). Would you know off
the top of your head why this flow statistic was used to determine the limit?