Document ID: EPA-HQ-OW-2005-0007-0011
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-11-09T05:00Z

Pollutant
2000
MGSP
Benchmark
Proposed
2005
MSGP
Benchmark
Total
Sectors
Affected
(

Activities
in
Sector
Affected/

Total
Activities
in
Sector)
Estimated
Number
of
Facilities
Affected**

Ammonia
19
mg/
L
19
mg/
L
K
31
Biochemical
Oxygen
Demand
(
5
day)
30
mg/
L
30
mg/
L
S,
U
(
1/
10)
467
Chemical
Oxygen
Demand
120
mg/
L
120
mg/
L
A
(
8/
11),
B
(
1/
5),
G
(
1/
2),
K,
N,
S,
U
(
1/
10)
398
Total
Suspended
Solids
100
mg/
L
100
mg/
L
ALL
3656
Turbidity
5
NTU
above
background
50
NTU
G
(
1/
2)
42
Nitrate
+
Nitrite
Nitrogen
0.68
mg/
L
0.68
mg/
L
C
(
3/
10),
G
(
1/
2),
J
(
1/
7),
U
(
1/
10),
AA
197
Total
Phosphorus
2.0
mg/
L
2.0
mg/
L
C
(
1/
10)
11
pH
6.0
­
9.0
s.
u.
6.0
­
9.0
s.
u.
G
(
1/
2),
S
442
Aluminum,
Total
(
pH
6.5
­
9)
0.75
mg/
L
0.75
mg/
L
C
(
1/
10),
E
(
2/
8),
F
(
2/
7),
H,
M,
N,
Q,

AA
(
1/
2)
663
Antimony,
Total
Recoverable
.636
mg/
L
0.64
mg/
L
G
(
1/
2)
42
Arsenic
0.16854
mg/
L
0.15
mg/
L
A
(
1/
11),
G(
1/
2),
K
53
Beryllium,
Total
Recoverable
0.13
mg/
L
0.13
mg/
L
G
(
1/
2)
42
Cadmium,
Total
Recoverable
0.0159
mg/
L
0.0021
mg/
L
G(
1/
2),
K
73
Chromium
N/
A
(
Effluent
Guideline
Only)
1.8
mg/
L
A
(
1/
11)
12
Copper,
Total
Recoverable
0.0636
mg/
L
0.014
mg/
L
A
(
1/
11),
F(
3/
7),
G
(
1/
2)
87
Cyanide
0.0636
mg/
L
0.022
mg/
L
K
31
Iron,
Total
Recoverable
1.0
mg/
L
1.0
mg/
L
C
(
2/
10),
E(
1/
8),
F(
1/
7),
G(
1/
2),
H,
L,

M,
N,
O,
Q,
AA(
1/
2)
806
Lead,
Total
Recoverable
0.0816
mg/
L
0.082
mg/
L
C(
1/
10),
G(
1/
2),
K,
M,
N,
Q
587
Magnesium,
Total
Recoverable
0.0636
mg/
L
0.064
mg/
L
K
31
Manganese
1.0
mg/
L
0.050
mg/
L
G
(
1/
2)
42
Mercury,
Total
Recoverable
0.0024
mg/
L
0.0014
mg/
L
G
(
1/
2),
K
73
Nickel,
Total
Recoverable
1.417
mg/
L
0.47
mg/
L
G
(
1/
2)
42
Phenols,
Total
N/
A
(
Effluent
Guideline
Only)
0.016
mg/
L
A
(
1/
11)
12
Selenium,
Total
Recoverable
.2385
mg/
L
0.005
mg/
L
G
(
1/
2),
K
73
Silver,
Total
Recoverable
0.0318
mg/
L
0.0038
mg/
L
G
(
1/
2),
K
73
Zinc,
Total
Recoverable
0.117
mg/
L
0.12
mg/
L
A
(
1/
11),
C
(
4/
10),
F
(
4/
7),
G
(
1/
2),
N,

Q,
Y
(
4/
10),
AA
531
**
Methodology
is
the
same
as
that
for
estimating
in
Cost
Analysis
Draft
9/
26/
05
Sector
Active
Permits*

Total
Activities
A
130
11
B
95
5
C
106
10
D
146
3
E
232
9
F
78
7
G
83
2
H
11
1
I
196
4
J
268
7
K
31
1
L
123
1
M
262
1
N
205
1
O
68
1
P
470
5
Q
37
1
R
49
1
S
400
1
T
96
1
U
67
10
V
37
3
W
9
2
X
25
1
Y
111
10
Z
4
1
AA
104
2
AB
91
2
AC
110
3
AD
12
1