LONG
TERM
2
ENHANCED
SURFACE
WATER
TREATMENT
RULE
TOOLBOX
GUIDANCE
MANUAL
United
States
Environmental
Protection
Agency
Office
of
Water
(
4601)
EPA
[
No.
TBD]
June
2003
Draft
Note
on
the
Long
Term
2
Enhanced
Surface
Water
Treatment
Rule
Toolbox
Guidance
Manual,
June
2003
Draft
Purpose:
The
purpose
of
this
guidance
manual,
when
finalized,
is
solely
to
provide
technical
information
on
applying
the
"
Toolbox"
of
Cryptosporidium
treatment
and
management
strategies
that
are
part
of
the
upcoming
Long
Term
2
Enhanced
Surface
Water
Treatment
Rule
(
LT2ESWTR).
EPA
is
developing
the
LT2ESWTR
to
reduce
the
risk
of
Cryptosporidium
and
other
microbial
pathogens
in
drinking
water.
This
regulation
would
require
certain
public
water
systems
to
provide
additional
treatment
for
Cryptosporidium
by
implementing
one
or
more
options
from
the
Toolbox.
Chapter
1
of
this
manual
contains
additional
information
about
this
regulation.

This
guidance
is
not
a
substitute
for
applicable
legal
requirements,
nor
is
it
a
regulation
itself.
Thus,
it
does
not
impose
legally­
binding
requirements
on
any
party,
including
EPA,
states,
or
the
regulated
community.
Interested
parties
are
free
to
raise
questions
and
objections
to
the
guidance
and
the
appropriateness
of
using
it
in
a
particular
situation.
Although
this
manual
covers
many
aspects
of
implementing
Toolbox
options,
the
guidance
presented
here
may
not
be
appropriate
for
all
situations,
and
alternative
approaches
may
provide
satisfactory
performance.
The
mention
of
trade
names
or
commercial
products
does
not
constitute
endorsement
or
recommendation
for
use.

Authorship:
This
manual
was
developed
under
the
direction
of
EPA's
Office
of
Water,
and
was
prepared
by
The
Cadmus
Group,
Inc
and
Carollo
Engineers.
Questions
concerning
this
document
should
be
addressed
to:

Mike
Finn
U.
S.
Environmental
Protection
Agency
Mail
Code
4607M
1200
Pennsylvania
Avenue
NW
Washington,
DC
20460­
0001
Tel:
(
202)
564­
5261
Fax:
(
202)
564­
3767
Email:
finn.
michael@
epa.
gov
Request
for
comments:
EPA
is
releasing
this
manual
in
draft
form
in
order
to
solicit
public
review
and
comment.
The
Agency
would
appreciate
comments
on
the
content
and
organization
of
technical
information
presented
in
this
manual.
Please
submit
any
comments
no
later
than
90
days
after
publication
of
the
Long
Term
2
Enhanced
Surface
Water
Treatment
Rule
proposal
in
the
Federal
Register.
Detailed
procedures
for
submitting
comments
are
stated
below.

Acknowledgements:

Procedures
for
submitting
comments:
Comments
on
this
draft
guidance
manual
should
be
submitted
to
EPA's
Water
Docket.
You
may
submit
comments
electronically,
by
mail,
or
through
hand
delivery/
courier.
 
To
submit
comments
using
EPA's
electronic
public
docket,
go
directly
to
EPA
Dockets
at
http://
www.
epa.
gov/
edocket,
and
follow
the
online
instructions
for
submitting
comments.
Once
in
the
system,
select
"
search,"
and
then
key
in
Docket
ID
No.
OW­
2002­
0039.

 
To
submit
comments
by
e­
mail,
send
comments
to
OW_
Docket@
epa.
gov,
Attention
Docket
ID
No.
OW­
2002­
0039.
If
you
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mail
comment
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EPA's
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EPA's
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placed
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To
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or
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ROM,
mail
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to
the
address
identified
below.
These
electronic
submissions
will
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in
WordPerfect
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Avoid
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use
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form
of
encryption.

 
To
submit
comments
by
mail,
send
three
copies
of
your
comments
and
any
enclosures
to:
Water
Docket,
Environmental
Protection
Agency,
Mail
Code
4101T,
1200
Pennsylvania
Ave.,
NW,
Washington,
DC,
20460,
Attention
Docket
ID
No.
OW­
2002­
0039.

 
To
submit
comments
by
hand
delivery
or
courier,
deliver
your
comments
to:
Water
Docket,
EPA
Docket
Center,
Environmental
Protection
Agency,
Room
B102,
1301
Constitution
Ave.,
NW,
Washington,
DC,
Attention
Docket
ID
No.
OW­
2002­
0039.

Please
identify
the
appropriate
docket
identification
number
in
the
subject
line
on
the
first
page
of
your
comment.
If
you
submit
an
electronic
comment,
please
include
your
name,
mailing
address,
and
an
e­
mail
address
or
other
contact
information
in
the
body
of
your
comment.
Also
include
this
contact
information
on
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outside
of
any
disk
or
CD
ROM
you
submit,
and
in
any
cover
letter
accompanying
the
disk
or
CD
ROM.

For
public
commenters,
please
note
that
EPA's
policy
is
that
public
comments,
whether
submitted
electronically
or
in
paper,
will
be
made
available
for
public
viewing
in
EPA's
electronic
public
docket
as
EPA
receives
them
and
without
change,
unless
the
comment
contains
copyrighted
material,
confidential
business
information,
or
other
information
whose
disclosure
is
restricted
by
statute.
