Table
1.
Toxic­
Weighted
Pound
Equivalents
Discharges
by
Industries
Regulated
by
Existing
Effluent
Guidelines
40
CFR
Part
Point
Source
Category
TRI
TWPE
TRI
Rank
PCS
TWPE
PCS
Rank
405
Dairy
products
processing
5,829
30
4
39
406
Grain
mills
manufacturing
8,898
28
479
35
407
Fruits
and
vegetable
processing
38,338
17
28,779
16
408
Canned
and
preserved
seafood
20
42
18,961
20
409
Sugar
processing
284
37
15,501
21
410
Textile
mills
84,754
14
296,601
7
411
Cement
manufacturing
10,827
26
15,113
22
413
Electroplating
41,380
N/
C
15,967
N/
C
414
Organic
chemicals,
plastics
and
synthetic
fibers
7,303,782
1
1,805,928
2
415
Inorganic
chemicals
624,250
4
853,568
4
417
Soaps
and
Detergents
Manufacturing
362
36
164
37
418
Fertilizer
manufacturing
22,566
20
116,464
10
419
Petroleum
refining
385,347
7
198,251
8
420
Iron
and
steel
manufacturing
1,685,493
N/
C
2,051,270
N/
C
421
Nonferrous
metals
manufacturing
978,450
3
434,925
5
422
Phosphate
manufacturing
33
41
1,095,321
3
423
Steam
electric
power
generation
1,856,645
2
2,933,209
1
424
Ferroalloy
manufacturing
22,131
22
8,830
24
425
Leather
tanning
and
finishing
28,670
18
5,486
29
426
Glass
manufacturing
1,875
31
0
42
427
Asbestos
manufacturing
6
44
N/
A
N/
C
428
Rubber
manufacturing
166,343
9
8,748
25
429
Timber
products
processing
404,926
6
960
33
430
Pulp,
paper
and
paperboard
(
Phase
I)
3,595,676
N/
C
5,120,869
N/
C
430
Pulp,
paper
and
paperboard
(
Phase
II)
608,875
5
4,217,679
N/
C
430
Pulp,
paper
and
paperboard
(
Phase
III)
319,244
N/
C
67,796
12
432
Meat
and
Poultry
Products
17,004
24
19,412
19
433
Metal
Finishing
842,890
N/
C
445,785
N/
C
434
Coal
mining
22,472
21
1,385
32
435
Oil
&
Gas
Extraction
8
43
267
36
436
Mineral
Mining
and
Processing
1,137
33
29,402
15
437
Centralized
Waste
Treatment
1,359
32
4,133
30
438
Metal
Products
and
Machinery
45
N/
C
197,082
N/
C
439
Pharmaceutical
manufacturing
105,685
11
19,825
18
440
Ore
mining
and
dressing
52,627
15
383,560
6
442
Transportation
Equipment
Cleaning
N/
A
N/
C
N/
A
43
443
Paving
and
roofing
materials
(
tars
and
asphalt)
35
40
710
34
444
Waste
combustors
(
commercial
incinerators
combusting
hazardous
waste)
874,852
N/
C
201,429
N/
C
445
Landfills
874,852
N/
C
201,429
N/
C
446
Paint
formulating
916
34
N/
A
44
447
Ink
formulating
51
38
N/
A
N/
C
451
Aquatic
Animal
Production
Industry
N/
A
N/
C
16
38
454
Gum
and
wood
chemicals
50
39
42,455
14
455
Pesticide
chemicals
manufacturing,
formulation
and
324,393
8
178,977
9
457
Explosives
381
35
5,550
28
458
Carbon
black
manufacturing
0
45
N/
A
N/
C
459
Photographic
N/
A
N/
C
0
41
460
Hospital
724
N/
C
5
N/
C
461
Battery
manufacturing
8,047
29
0
40
463
Plastic
molding
and
forming
106,189
10
3,698
31
464
Metal
molding
and
casting
(
foundries)
45,182
16
5,833
26
465
Coil
coating
11,764
25
N/
A
N/
C
466
Porcelain
Enameling
92,174
13
54,077
13
467
Aluminum
forming
25,035
19
103,624
11
468
Copper
forming
22,071
23
5,556
27
469
Electrical
and
electronic
components
9,800
27
23,714
17
471
Nonferrous
metals
forming
and
metal
powders
101,691
12
15,095
23
Note:
"
N/
A"
means
not
available
and
"
N/
C"
means
not
calculated.
EPA
may
not
have
calculated
a
rank
due
to
lack
of
PCS
or
TRI
data
(
e.
g.,
coil
coating).
EPA
may
also
have
been
unable
to
identify
the
pollutant
loadings
for
the
various
subcategories
within
a
point
source
category.

Note:
The
TWPE
estimates
for
both
Waste
Combustors
(
Part
444)
and
Landfills
(
Part
445)
are
the
same
as
EPA
used
the
same
SIC
code
(
Refuse
Systems
(
4953))
to
estimate
loadings
for
both
categories.
Table
2.
Toxic­
Weighted
Pound
Equivalents
Discharges
by
Industries
Not
Regulated
by
Existing
Effluent
Guidelines
SIC
Code
Grouping
Name
of
Category
TRI
TWPE
PCS
TWPE
9
Fishing,
Hunting,
&
Trapping
N/
A
266
16
Heavy
Construction,
Except
Building
N/
A
0
20
Food
&
Kindred
Products
2,736
N/
A
21
Tobacco
Products
6,131
N/
A
23
Apparel
&
Other
Textile
Products
53
N/
A
24
Lumber
&
Wood
Products
14,656
2,885
25
Furniture
&
Fixtures
2
N/
A
26
Paper
&
Allied
Products
1,622
990
27
Printing
&
Publishing
280
2,247
28
Chemical
&
Allied
Products
3,663
240
29
Petroleum
&
Coal
Products
27,982
397
30
Rubber
and
miscellaneous
plastics
products
0.2
N/
A
32
Stone,
Clay,
&
Glass
Products
4,424
5,683
34
Fabricated
metal
products
0.004
N/
A
39
Misc.
Manuf.
Industries
0.02
N/
A
40
Railroad
Transportation
N/
A
11,701
42
Trucking
&
Warehousing
N/
A
5,212
45
Transportation
by
Air
N/
A
466
46
Pipelines,
Except
Natural
Gas
N/
A
347
47
Transportation
Services
N/
A
7
49
Electric,
Gas,
&
Sanitary
Services
15,516
15,949
50
Wholesale
Trade­
Durable
Goods
287
0
51
Wholesale
Trade­
Nondurable
Goods
275
945
65
Real
Estate
N/
A
109
67
Holding
&
Other
Investment
Offices
0
N/
A
73
Business
Services
88,810
N/
A
82
Educational
Services
N/
A
6,892
87
Engineering
&
Management
Services
124,724
1,265
89
Services,
Not
Elsewhere
Classified
566
N/
A
91
Executive,
Legislative,
&
General
36,734
3
92
Justice,
Public
Order,
&
Safety
N/
A
546
95
Environmental
Quality
&
Housing
18,458
1,307
96
Administration
of
Economic
Programs
N/
A
4,163
97
National
Security
&
International
Affairs
3,647
109,122
99
Unclassifiable
1
29,591
4941
Water
Supply
7
516,402
Note:
"
N/
A"
means
not
available.
