Document ID: EPA-HQ-OW-2004-0010-0261
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-10-13T04:00Z

1
MEMORANDUM
TO:
File
FROM:
Lauren
Petruzzi
Science
Applications
International
Corporation
SUBJECT:
Administrative
Record
for
Water
Quality
Standards
for
Coastal
and
Great
Lakes
Recreation
Waters,
Documentation
of
Personal
Communication
Citations
in
the
Economic
Analysis
___________________________________________________

°
Environetics
Inc.
2003.
Personal
communication
with
Mark
Pannell,
May
2003.

On
May
2,
2003,
SAIC
contacted
with
Environetics
Inc.
regarding
costs
for
baffles.
Mark
Pannell
of
Environetics
provided
SAIC
costs
for
two
different
baffle
sizes,
as
shown
in
Exhibit
1.

Exhibit
1.
Baffle
Costs
from
Environetics,
Inc.

Baffle
Description
Baffle
Size
Total
Area
Total
Cost
Cost
per
Area
($/
sf)

Director
III
baffle
curtains,
stainless
steel
batten
on
wall
and
floor
3'
long
x
3.5'
deep
Four
baffles
=
42
square
feet
(
sq)
$
1,500
$
35.71
Director
III
baffle
curtains,
stainless
steel
batten
on
wall
and
floor
lengths
=
1'
10",
7'
9.5",
18",
44"
depth
=
3.5'
Four
baffles
=
250.69
sf
$
4,600
$
18.35
°
Harrington
Sewage
Treatment
Plant
(
STP).
2004.
Personal
communication
with
plant
operator,
January
2004.

On
January
6,
2004,
SAIC
contacted
with
the
Harrington
Sewage
Treatment
Plant
in
Delaware
regarding
its
chlorination
process
and
effluent
bacteria
levels.
The
treatment
plant
operator
provided
SAIC
with
information
regarding
the
facility's
ability
to
meet
their
enterococci
limits.
The
Harrington
STP
chlorination
process
is
designed
for
a
residual
chlorine
concentration
of
0.5
mg/
L,
and
an
average
contact
time
of
35
to
40
minutes.
The
operator
informed
SAIC
that
no
adjustments
or
upgrades
were
necessary
for
the
facility
to
comply
with
its
enterococci
effluent
limit
of
33
colonies/
100
mL.

°
Ken
Gladen,
Kent
County
Wastewater
Treatment
Plant
(
WWTP).
2004.
Personal
communication,
January
2004.
2
On
January
6,
2004,
SAIC
contacted
with
the
Kent
County
Wastewater
Treatment
Plant
in
Delaware
regarding
its
chlorination
process
and
effluent
bacteria
levels.
Ken
Glanden,
the
treatment
plant
operator,
provided
SAIC
with
information
regarding
the
facility's
ability
to
meet
their
enterococci
limits.
The
Kent
County
WWTP
chlorination
process
is
designed
for
a
residual
chlorine
concentration
of
1.0
­
2.0
mg/
L,
and
an
average
contact
time
of
20
to
25
minutes.
The
facility
also
conducts
bi­
hourly
sampling
to
ensure
proper
operation
of
the
disinfection
process.
Ken
informed
SAIC
that
no
adjustments
or
upgrades
were
necessary
for
the
facility
to
comply
with
its
enterococci
effluent
limit
of
33
colonies/
100
mL.

°
Ken
Lockland,
Brewer
Water
Pollution
Control
Plant
(
WPCP).
2004.
Personal
communication,
January
2004.

On
January
7,
2004,
SAIC
contacted
with
the
Brewer
Water
Pollution
Control
Facility
in
Maine
regarding
its
chlorination
process
and
effluent
bacteria
levels.
Ken
Lockland,
the
treatment
plant
operator,
provided
SAIC
with
information
regarding
adjustments
made
to
the
plant's
disinfection
processes
in
order
to
comply
with
their
E.
coli
effluent
limits.
The
facility
had
been
violating
its
E.
coli
limits,
as
well
as
a
number
of
other
effluent
limits.
In
1998,
Brewer
WPCF
upgraded
its
chlorination
contact
tanks
under
a
consent
agreement
with
the
Maine
Department
of
Environmental
Protection
to
prevent
further
permit
violations
of
their
E.
coli
criteria.
The
facility
expanded
the
capacity
of
the
chlorine
contact
tank
to
treat
a
greater
storm
water
flow,
and
to
increase
the
contact
time
for
greater
disinfection
efficiency.
The
facility
also
reconstructed
baffles
within
the
tank
to
provide
for
better
mixing
during
disinfection.
Following
the
upgrade,
the
facility
consistently
meets
its
E.
coli
permit
limits
of
64
colonies/
100
mL
as
a
geometric
mean.

°
Kuehne
Chemical
Company.
2002.
Personal
communication,
June
2002.

On
June
26,
2002,
SAIC
contacted
with
Kuehne
Chemical
regarding
costs
for
chlorine
cylinders.
Ken
Cavallo
of
Kuehne
Chemical
provided
SAIC
costs
for
two
different
chlorine
cylinder
sizes,
as
shown
in
Exhibit
2.

Exhibit
2.
Chlorine
Cylinder
Costs
from
Kuehne
Chemical
Cylinder
Size
Unit
Costs
150
pounds
$
225
per
cylinder
for
20
cylinders
2,000
pounds
$
850
per
1­
ton
cylinder
°
Lancaster
Wastewater
Treatment
Plant.
2004.
Personal
communication
with
plant
operator,
January
2004.

On
January
6,
2004,
SAIC
contacted
with
the
Lancaster
Wastewater
Treatment
Plant
in
New
Hampshire
regarding
its
chlorination
process
and
effluent
bacteria
levels.
The
treatment
plant
operator
provided
SAIC
with
information
regarding
the
facility's
ability
to
meet
their
E.
coli
limits.
The
Lancaster
WWTP
is
a
minor
facility
that
operates
a
typical
chlorination
process
designed
for
a
chlorine
residual
of
0.5
mg/
L.
The
operator
informed
SAIC
that
no
adjustments
or
3
upgrades
were
necessary
for
the
facility
to
comply
with
its
E.
coli
effluent
limit
of
126
colonies/
100
mL.

°
Roberts
Oxygen.
2002.
Personal
communication,
June
2002.

On
June
27,
2002,
SAIC
contacted
with
Roberts
Oxygen
regarding
costs
for
chlorine
cylinders.
Paul
Rakow
of
Roberts
Oxygen
provided
SAIC
with
costs
for
a
150­
lb
chlorine
cylinder
with
99.5%
purity
of
$
289
per
cylinder.