TPC
Table
Abbreviation
Codes
Abbreviations:
SIC,
Standard
Industrial
Classification;
P­
factor,
Process
pipe
factor;
Al,
Aluminum;
Sb,
Antimony;
CN,
Cyanide;
CACO3,
Hardness;
Mn,
Manganese;
Ni,
Nickel;
DO,
Dissolved
Oxygen;
Se,
Selenium;
Ag,
Silver;
BOD,
Biochemical
Oxygen
Demand;
TSS,
Total
Suspended
Solids;
TN,
Total
Nitrogen;
TKN,
Total
Kjeldahl
Nitrogen;
TP,
Total
Phosphorous;
FCB,
Fecal
Coliform
Bacteria;
As,
Arsenic;
Cd,
Cadmium;
Cr,
Chromium;
Cu,
Copper;
Fe,
Iron;
Pb,
Lead;
Hg,
Mercury;
Zn,
Zinc;
O&
G,
Oil
and
Grease;
PCB,
Polychlorinated
Biphenyls;
CHP,
Chlorinated
Hydrocarbon
Pesticides.

Special
Discharge
Activity
Codes
(
SDAC):
FP,
highly
seasonal
operation;
FQ,
year­
round
operation
with
some
seasonal
variation;
FT,
year­
round
operation
with
some
minor
variation;
CV,
plants
processing
finfish
and
shellfish;
CF,
species
processed
unknown;
CW,
plants
processing
a
diversity
of
shellfish;
CY,
plants
processing
a
limited
number
of
shellfish;
CX,
plants
processing
a
diversity
of
finfish;
CZ,
plants
processing
a
limited
number
of
finfish.
SE,
base
load
plant;
SP,
peak
load
plant;
WN,
nuclear
steam
electric
power
plant;
WR,
residential
code
assigned
based
on
SIC
(
SIC
=
6513­
6515,
7011­
7041,
8811);
WA,
indicates
that
alum
coagulation
is
the
main
treatment
process;
WF,
indicates
that
iron
treatment
is
the
major
treatment
process;
TU,
untreated
wastewater;
TP,
primary
wastewater
treatment;
TS,
secondary
wastewater
treatment;
TT,
tertiary
wastewater
treatment.
