Original
TPC
Table
Footnotes
a/
Canned
&
Preserved
Seafood.
One
outlying
value
was
dropped
in
calculating
mean
values.
Development
document
categories
were
consolidated
into
shellfish
plants,
finfish
plants,
and
plants
processing
both
shellfish
and
finfish
to
better
reflect
actual
plants.

b/
Inorganic
chemicals.
Iron
is
only
found
in
the
subcategories
and
was
dropped
to
prevent
skewing
of
results.
Explosives
are
covered
under
inorganic
chemical
values
due
to
difficulties
in
deriving
realistic
values.

c/
Organic
Chemicals.
Paint
and
ink
plants
covered
by
organic
chemical
values
due
to
difficulties
in
deriving
realistic
values
from
the
limited
numbers
of
plants
sampled
and
reported
in
the
source
documents.

d/
Adhesives
&
Sealants.
Not
currently
regulated
but
permitted
in
some
states;
values
based
on
Discharge
Monitoring
Reports
for
10
plants.

e/
Concrete.
Not
currently
regulated
but
permitted
in
some
states,
values
based
on
Discharge
Monitoring
Reports
for
seven
plants.

f/
Feedlots.
FCB
is
assumed
to
be
equal
to
the
best
practicable
technology
regulated
level.
The
only
feedlots
that
are
direct
discharges
are
wet
duck
farming,
and
values
represent
this
activity.

g/
Fish
Hatcheries.
Includes
cleaning
waste
stream
and
normal
daily
operations.

h/
Iron
&
Steel.
Ferroalloys
are
covered
under
this
category.

i/
Metal
Finishing.
This
category
is
defined
by
EPA
for
66
individual
SIC
categories:
2515,
2515,
2522,
2542,
3398,
3399,
3412,
3421,
3423,
3425,
3429,
3433,
3441,
3442,
3443,
3444,
3446,
3448,
3449,
3451,
3452,
3462,
3465,
3466,
3471,
3482,
3483,
3484,
3489,
3493,
3494,
3496,
3498,
3499,
3613,
3621,
3622,
3623,
3629,
3634­
3636,
3643­
48,
3651,
3662,
3673,
3675,
3678,
3693,
3694,
7531,
7692­
7699.

j/
Miscellaneous
Industrial
Commercial.
Assumed
to
represent
small
package
treatment
plants
with
discharge
characteristics
similar
to
secondary
treatment:
111,
112,
115,
116,
119,
131,
132,
133,
134,
139,
161,
171,
172,
173,
174,
175,
179,
181,
182,
191,
273,
711,
721,
722,
723,
724,
741,
742,
751,
752,
761,
762,
781,
782,
783,
811,
831,
851,
912,
913,
919,
971,
1099,
1221,
1222,
1231,
1241,
1311,
1321,
1381,
1382,
1389,
1521,
1522,
1531,
1541,
1542,
1611,
1622,
1623,
1629,
1711,
1721,
1731,
1741,
1742,
1743,
1751,
1752,
1761,
1771,
1781,
1791,
1793,
1794,
1795,
1796,
1799,
2015,
2053,
2064,
2068,
2096,
2111,
2121,
2131,
2141,
2273,
2281,
2282,
2284,
2519,
2656,
2657,
2671,
2672,
2673,
2674,
2675,
2676,
2677,
2678,
2769,
2796,
2835,
2836,
3052,
3053,
3061,
3081,
3082,
3083,
3084,
3085,
3086,
3087,
3088,
3089,
3291,
3364,
3365,
3366,
3463,
3491,
3492,
3495,
3625,
3663,
3669,
3695,
3911,
3942,
3965,
3991,
2111,
4119,
4121,
4141,
4142,
4215,
4225,
4226,
4311,
4412,
4424,
4432,
4449,
4481,
4482,
4489,
4491,
4492,
4493,
4449,
4512,
4513,
4522,
4581,
4612,
4613,
4619,
4724,
4725,
4729,
4731,
4741,
4783,
4785,
4789,
4812,
4813,
4822,
4832,
4833,
4841,
4899,
4922,
4923,
4924,
4925,
4931,
4932,
4939,
4953,
4959,
4961,
4971
5011,
5012,
5013,
5014,
5015,
5021,
5023,
5031,
5032,
5033,
5039,
5043,
5044,
5045,
5046,
5047,
5048,
5049,
5051,
5052,
5063,
5064,
5065,
6074,
5075,
5078,
5082,
5083,
5084,
5085,
5087,
5088,
5091,
5092,
5093,
5094,
5099,
5111,
5112,
5113,
5122,
5131,
5136,
5137,
5139,
5141,
5143,
5145,
5147,
5149,
5153,
5162,
5169,
5171,
5172,
5181,
5182,
5191,
5192,
5193,
5194,
5198,
5199,
5211,
5231,
5251,
5261,
5271,
5311,
5399,
5411,
5421,
5431,
5441,
5451,
5461,
5499,
5511,
5521,
5531,
5541,
5551,
5561,
5571,
5599,
5611,
5621,
5632,
5641,
5651,
5661,
5699,
5712,
5713,
5714,
5719,
5722,
5731,
5734,
5735,
5736,
5812,
5813,
5912,
5921,
5932,
5941,
5942,
5943,
5944,
5945,
5946,
5947,
5948,
5949,
5961,
5962,
5963,
5983,
5984,
5989,
5992,
5993,
5994,
5995,
5999,
6011,
6019,
6021,
6022,
6029,
6035,
6036,
6061,
6062,
6081,
6082,
6091,
6099,
6111,
6112,
6141,
6153,
6159,
6162,
6163,
6211,
6221,
6231,
6282,
6289,
6311,
6324,
6331,
6351,
6361,
6371,
6399,
6411,
6512,
6517,
6519,
6531,
6541,
6552,
6553,
6712,
6719,
6722,
6726,
6732,
6733,
6792,
6794,
6798,
6799,
7221,
7231,
7241,
7251,
7261,
7291,
7299,
7311,
7312,
7313,
7319,
7322,
7323,
7331,
7334,
7335,
7336,
7338,
7342,
7349,
7352,
7353,
7359,
7361,
7363,
7371,
7372,
7373,
7374,
7375,
7376,
7377,
7378,
7378,
7381,
7382,
7383,
7384,
7389,
7513,
7514,
7515,
7519,
7521,
7532,
7533,
7536,
7537,
7538,
7539,
7549,
7622,
7623,
7629,
7631,
7641,
7812,
7819,
7822,
7829,
7832,
7833,
7841,
7911,
7922,
7929,
7933,
7941,
7948,
7991,
7992,
7993,
7996,
7997,
7999,
8011,
8021,
8031,
8041,
8042,
8043,
8049,
8051,
8052,
8059,
8071,
8072,
8082,
8092,
8093,
8099,
8111,
8211,
8221,
8222,
8231,
8243,
8244,
8249,
8299,
8322,
8331,
8351,
8361,
8399,
8412,
8422,
8611,
8621,
8631,
8641,
8651,
8661,
8699,
8711,
8712,
8713,
8721,
8731,
8732,
8733,
8734,
8742,
8743,
8744,
8748,
8999,
9111,
9121,
9131,
9199,
9211,
9221,
9222,
9223,
9224,
9229,
9311,
9411,
9431,
9441,
9451,
9511,
9512,
9531,
9532,
9611,
9621,
9631,
9641,
9651,
9661,
9711,
9721,
9999.

k/
Nonferrous
Primary
and
Secondary.
Subcategories
are
consolidated
under
primary
and
secondary
category;
based
on
flow
weighted
averages
for
current
concentration
levels
from
reference
1.
A
nitrogen
value
is
not
given
for
secondary
nonferrous
due
to
the
wide
range
of
concentration
values
given
(
3­
3000
mg/
l)
in
the
source
document.

l/
Primary
Zinc.
Not
regulated
until
1984;
values
represent
pretreatment
levels
as
currently
regulated.

m/
Meat
Processing
and
Rendering.
FCB
was
derived
from
the
EPA
Development
Document.
Note
that
there
is
no
value
for
oil
and
grease
because
it
is
defined
as
petroleum
hydrocarbons
and
not
animal
fats
and
oils.

n/
Steam
Electric.
Once­
through
cooling
concentrations
represent
values
for
saline
waters
and
not
freshwater.

New
TPC
Table
Footnotes
*
Typical
Facility
Concentration
from
PCS.

^
Parameter
Concentration
from
Industry
Summary
Sheet
or
other
studies.
