MEMORANDUM
TO:
304(
m)
Record
(
EPA
Docket
Number
OW­
2003­
0074)

FROM:
Bob
Southworth,
ERG
Senior
Environmental
Engineer
DATE:
November
24,
2003
SUBJECT:
Subparts
and
SIC
Codes
for
the
Fertilizer
and
Phosphate
Subcategories
This
memorandum
briefly
describes
the
subparts
in
the
effluent
limitations
guidelines
(
ELG)
for
the
fertilizer
and
phosphate
categories,
and
lists
the
products
manufactured
at
facilities
with
the
Standard
Industry
Classification
(
SIC)
codes
for
those
categories.
It
also
lists
ammonia
and
phosphorus
products
manufactured
at
facilities
with
a
SIC
Code
of
2819
(
inorganic
chemicals
manufacturing).
Information
presented
in
this
memorandum
can
be
used
to
determine
the
appropriate
SIC
code
for
facilities
for
which
toxic
weighted
pound
equivalent
loads
(
TWPE)
are
included
in
the
TWPE
loads
for
both
the
fertilizer
and
phosphate
categories,
or
in
the
TWPE
loads
for
both
the
phosphate
and
inorganic
chemicals
manufacturing
categories.
The
TWPE
loads
were
calculated
using
data
in
the
2000
Toxic
Release
Inventory
(
TRI)
database.

Fertilizer
Category
(
40
CFR
418)

The
subparts
in
the
fertilizer
ELG,
along
with
a
brief
description,
are
listed
in
Table
1.
The
SIC
Code
for
the
fertilizer
category
is
2873
­
manufacture
of
nitrogenous
fertilizer
materials
or
mixed
fertilizers
from
nitrogenous
materials
produced
in
the
same
establishment.
Products
manufactured
at
facilities
with
this
SIC
Code
include:

Ammonia
liquor
Fertilizers:
natural
(
organic),
except
compost
Ammonium
nitrate
and
sulfate
Nitric
acid
Anhydrous
ammonia
Nitrogen
solutions
(
fertilizer)

Aqua
ammonia
made
in
ammonia
plants
Plant
foods,
mixed:
made
in
plants
producing
nitrogenous
fertilizer
materials
Fertilizers,
mixed:
made
in
plants
producing
nitrogenous
fertilizer
materials
Urea
MEMORANDUM
24
November
2003
Page
2
TABLE
1
SUBPARTS
IN
THE
FERTILIZER
EFFLUENT
LIMITATIONS
GUIDELINES
Subpart
Title
Description
A
Phosphate
Subcategory
Manufacture
of
sulfuric
acid
by
sulfur
burning,
wet­
process
phosphoric
acid,
normal
superphosphate,
triple
superphosphate,
and
ammonium
phosphate
B
Ammonia
Subcategory
Manufacture
of
ammonia
C
Urea
Subcategory
Manufacture
of
urea
D
Ammonium
Nitrate
Subcategory
Manufacture
of
ammonia
nitrate
E
Nitric
Acid
Subcategory
Production
of
nitric
acid
in
concentrations
up
to
68
percent
F
Ammonium
Sulfate
Production
Subcategory
Production
of
ammonium
sulfate
by
the
synthetic
process
and
by
coke
oven
byproduct
recovery
G
Mixed
Blend
Fertilizer
Production
Subcategory
Production
of
mixed1
and
blend2
fertilizer
1
Mixed
fertilizer
means
"
a
mixture
of
wet
and/
or
dry
straight
fertilizer
material,
mixed
fertilizer
materials,
fillers
and
additives
prepared
through
chemical
reaction
to
a
given
formulation."
2
Blend
means
"
a
mixture
of
dry
straight,
and
mixed
fertilizer
materials."

Phosphate
Category
(
40
CFR
422)

The
subparts
in
the
phosphate
ELG,
along
with
a
brief
description,
are
listed
in
Table
2.
The
SIC
Code
for
the
phosphate
category
is
2874
­
manufacture
of
phosphate
fertilizer
materials
or
mixed
fertilizer
from
phosphatic
materials
produced
in
the
same
establishment.
Products
manufactured
at
facilities
with
this
SIC
Code
include:

Ammonia
phosphates
Fertilizers,
mixed:
made
in
plants
producing
phosphoric
acid
fertilizer
materials
Calcium
meta­
phosphates
Phosphoric
acid
Defluorinated
phosphates
Plant
food,
mixed:
made
in
plants
producing
phosphatic
fertilizer
materials
Diammonia
phosphates
Superphosphate,
ammoniated
and
not
ammoniated
MEMORANDUM
24
November
2003
Page
3
TABLE
2
SUBPARTS
IN
THE
PHOSPHATE
EFFLUENT
LIMITATIONS
GUIDELINES
Subpart
Title
Description
A
Phosphorus
Production
Subcategory
Production
of
phosphorus
and
ferrophosphorus
by
smelting
of
phosphate
ore
B
Phosphorus
Consuming
Subcategory
Manufacture
of
phosphoric
acid,
phosphorus
pentoxide,
phosphorus
pentasulfide,
phosphorus
trichloride,
and
phosphorus
oxychloride
directly
from
elemental
phosphorus
C
Phosphate
Subcategory
Manufacture
of
sodium
tripolyphosphate,
animal
feed
grade
calcium
phosphate,
and
human
food
grade
calcium
phosphate
from
phosphoric
acid
D
Defluorinated
Phosphate
Rock
Subcategory
Defluorination
of
phosphate
rock
by
application
of
high
temperature
treatment
along
with
wet
process
phosphoric
acid,
silica,
and
other
reagents
(
Not
in
manufacturing)

E
Defluorinated
Phosphoric
Acid
Subcategory
Defluorination
of
phosphoric
acid
F
Sodium
Phosphates
Subcategory
Manufacture
of
purified
sodium
phosphates
resulting
from
wet
process
phosphoric
acid
Inorganic
Chemicals
Manufacturing
Category
SIC
Code
2819
Ammonia
and
phosphorus
materials
manufactured
at
facilities
with
a
SIC
Code
of
2819
(
Other
Inorganic
Chemicals)
include:

Ammonia
compounds,
except
for
fertilizers
Phosphorus
and
phosphorus
oxychloride
Phosphates,
except
defluorinated
and
ammoniated
Sulfuric
acid
