?
Need
to
return
call
by
/
at/
between
and
.
Signature:
Project
No.:
0172.02.005.050
 
DISTRIBUTION
Page
___
of
_

Project
Name:
304(
m)

TELEPHONE
CALL
RECORD
Outgoing
Call
Date:
6/
29/
05
Time:
2:
45
PM
EST
Company
Name:
Engelhard
Corporation
Erie,
PA
Contact
Name:
Richard
Mirth
Phone
No.:
(
814)
870­
3900
Name:
Audrey
Kasenge
Eastern
Research
Group
GENERAL
SUBJECT
:
Sodium
Nitrite
Releases
Reported
to
TRI
TOPICS
DISCUSSED
AND
ACTION
TAKEN
On
Tuesday
June
28,
2005
I
called
Mr.
Mirth
to
ask
how
Engelhard
Corp
in
SC
estimates
their
sodium
nitrite
releases.
Mr.
Mirth
returned
my
call
on
Wednesday
June
29,
2005
and
informed
me
that
the
facility
measures
nitrite
in
the
wastewater
monthly.
Due
to
the
large
excess
of
sodium
in
the
wastewater,
the
remaining
pollutant
is
assumed
to
be
sodium.
The
amount
of
sodium
nitrite
released
is
determined
by
multiplying
the
nitrite
concentration
by
the
annual
flow
rate,
and
then
adding
the
sodium
contribution
based
on
its
molecular
weight.
