Document ID: EPA-HQ-OW-2004-0032-0952
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-08-25T04:00Z

WQBEL­
based
Limits
for
Ash
Ponds
FacilityKey
Ash
Pond
Pollutant
Limit
18
Arsenic
58.6
ppd
22
Zinc
4.74
ppd
26
Copper
(
Outfall
005)
100
ppb
28
Acute
WET
Testing
Ceriodaphnia
1
Tua
30
Oil
&
Grease
15.0
mg/
l
monthly
max;
10.0
mg/
l
monthly
avg.

30
Total
Suspended
Solids
100.0
mg/
l
monthly
max;
30.0
mg/
l
monthly
avg.

38
SD004
Oil
&
Grease
15.0
mg/
l
monthly
max;
10.0
mg/
l
monthly
avg.

38
SD004
Total
Suspended
Solids
100.0
mg/
l
monthly
max;
30.0
mg/
l
monthly
avg.

38
SD004
Copper
0.39
mg/
l
monthly
max.

38
SD004
Sulfates
(
combined
standard
w/
SD006)
41,515.0
kg/
day
monthly
max.

38
SD006
Oil
&
Grease
15.0
mg/
l
monthly
max;
10.0
mg/
l
monthly
avg.

38
SD006
Total
Suspended
Solids
100.0
mg/
l
monthly
max;
30.0
mg/
l
monthly
avg.

38
SD006
Copper
0.037
mg/
l
monthly
max.

38
SD006
Sulfates
(
combined
standard
w/
SD004)
41,515.0
kg/
day
monthly
max.

40
Whole
Effluent
Toxicity
Toxicity
42
Boron
1.8
mg/
L
42
Manganese
1.0
mg/
L
(
monthly
ave),
1.3
mg/
L
(
daily
max)

42
Iron
2.0
mg/
L
(
monthly
ave),
4.0
mg/
L
(
daily
max)

42
Total
Dissolved
Solids
1300
mg/
L
46
Boron
10
mg/
L
(
daily
maximum)

47
Whole
Effluent
Toxicity
Toxicity
49
Whole
Effluent
Toxicity
Toxicity
52
Whole
Effluent
Toxicity
Toxicity
57
Copper
72
ug/
L
59
Copper
38
ug/
L
67
Total
Suspended
Solids
monthly
avg.
30
mg/
L;
daily
max.
75
mg/
L
67
Oil
&
Grease
monthly
avg.
10
mg/
L;
daily
max.
10
mg/
L
67
Toxicity
daily
max.
1.0
TU
67
pH
6.0
min.
9.0
max.

73
Total
Copper
0.20
mg/
l
daily
max.

103
Boron
9.9
mg/
l
103
Total
Dissolved
Solids
1382
mg/
l
104
Copper
(
tot)
0.67
mg/
L
(
WQ)

104
Mercury
0.0008
mg/
L
(
WQ)

106
Boron
1.0
mg/
L
106
Total
Dissolved
Solids
1000
mg/
L
106
Sulfate
500
mg/
L
109
Oil
&
Grease
5.0
mg/
l
daily
max.

109
Solids,
Total
Suspended
30.0
mg/
l
daily
avg.;
100.0
MG/
L
daily
max.

OW­
2004­
0032­
0952(
1)
Page
1
WQBEL­
based
Limits
for
Ash
Ponds
FacilityKey
Ash
Pond
Pollutant
Limit
109
Arsenic,
Total
Recoverable
50.0
ug/
l
daily
max.

109
Chromium,
Total
Recoverable
50.0
ug/
l
daily
max.

109
Copper,
Total
Recoverable
2.9
ug/
l
daily
max.

109
Lead,
Total
Recoverable
5.6
ug/
l
daily
max.

109
Iron,
Total
Recoverable
300.0
mg/
l
daily
max.

109
Mercury,
Total
Recoverable
0.025
ug/
l
daily
max.

109
Nickel,
Total
Recoverable
100.0
ug/
l
daily
max.

109
pH
Standard
Units
(
Background)
8.5
daily
max.;
6.5
daily
min.

109
pH
Standard
Units
8.5
daily
max.;
6.5
daily
min.

109
Zinc,
Total
Recoverable
8.5
ug/
l
daily
max;
6.5
ug/
l
daily
min.

109
Cadmium,
Total
Recoverable
5.0
ug/
l
daily
max.

116
Total
Suspended
Residue
30
mg/
l
116
pH
6­
9
standard
units
117
pH
6.0­
9.0
Standard
Units
119
pH
6.0­
8.5
standard
units
119
Iron
1.0
mg/
l
119
Fecal
Coliform
200/
100ml
174
Arsenic
182
ug/
l
175
TSS
100
mg/
l
daily
max.

175
Oil
&
Grease
20
mg/
l
daily
max.

175
pH
6.0
­
9.0
176
TSS
100
mg/
l
daily
max.

176
Oil
&
Grease
20
mg/
l
daily
max.

176
pH
6.0
­
9.0
177
pH
6.0
to
9.0
s.
u.

177
Total
Selenium
Daily
Max
31.0
ug/
L
177
Chronic
Toxicity
Pass
or
Fail
178
pH
6.0
to
9.0
s.
u.

178
Chronic
Toxicity
Pass
or
Fail
180
Chronic
Toxicity
Pass
or
Fail
180
pH
6.0
to
9.0
s.
u.

180
Total
Selenium
Daily
max.
26.0
ug/
L
182
pH
6.0
to
9.0
s.
u.

182
Chronic
Toxicity
Pass
or
Fail
186
Copper
0.049
mo.
Avg.
and
0.105
daily
max.
mg/
l
186
Selenium
0.062
daily
max.
mg/
l
186
ammonia
4.34
mo.
Av.
And
8.71
daily
max.
mg/
l
186
zinc
0.13
daily
max.
mg/
l
186
Arsenic
0.1
daily
max.
mg/
l
OW­
2004­
0032­
0952(
1)
Page
2
WQBEL­
based
Limits
for
Ash
Ponds
FacilityKey
Ash
Pond
Pollutant
Limit
192
Selenium,
Total
Recoverable
­
ug/
l
(
Outfall
001)
5.6
ug/
l
monthly,
5.59
kg/
day
monthly
195
Copper
50
ug/
l
203
Free
Available
Chlorine
(
clearwater
pond/
bottom
ash
pond)
Avg.
Monthly
25
ug/
L;
Max.
Daily
62
ug/
L
203
Total
Iron
(
fly
ash
pond)
Avg.
Monthly
3.5
mg/
L;
Max.
Daily
7.0
mg/
L
203
Total
Cadmium
(
fly
ash
pond)
Max.
Daily
0.062
mg/
L
203
Total
Selenium
(
fly
ash
pond)
Avg.
Monthly
3.5
mg/
L;
Max.
Daily
7.0
mg/
L
203
Total
Recoverable
Copper
(
fly
ash
pond)
Avg.
Monthly
31.0
ug/
L;
Max.
Daily
46.3
ug/
L
206
Chlorine,
Total
Residual
­
mg/
l
(
outfall
002)
0.038
mg/
l
daily
max.

206
Chlorine,
Total
Residual
­
mg/
l
(
outfall
003)
0.038
mg/
l
daily
max.

212
Selenium
daily
ave.
0.017
mg/
L;
daily
max
0.036
mg/
L
215
Copper
0.02
mo.
avg.;
0.04
daily
max.
mg/
l
215
Selenium
28.7
mo.
avg.;
57.5
daily
max.
ug/
l
215
Lead
8.4
mo.
avg.;
16.8
daily
max.
ug/
l
215
Chromium
367.9
mo.
avg.;
738.2
daily
max.
ug/
l
215
Fluoride
1.6
mo.
avg.;
3.3
daily
max.
mg/
l
215
Sulfate
204.7
mo.
avg.;
410.7
daily
max.
mg/
l
219
Copper
0.016
mo.
avg.;
0.037
daily
max.
mg/
l
219
Aluminum
0.99
mo.
avg.;
1.98
daily
max.
mg/
l
219
Iron
2.73
mo.
avg.;
5.49
daily
max.
mg/
l
219
Selenium
0.0017
mo.
avg.;
0.0039
daily
max.
mg/
l
219
Cyanide
0.0189
mo.
avg.;
0.0439
daily
max.
mg/
l
221
Selenium
daily
avg.
0.013
mg/
L;
daily
max.
0.027
mg/
L
223
Chronic
Toxicity
(
Outfall
001)
1.0
Tuc
(
quarterly
monitoring)

223
Acute
Toxicity
(
Outfall
002)
1.0
tua
(
quarterly
monitoring)

225
Acute
Toxicity
(
Outfall
001)
1.0
tua
(
quarterly)

227
Toxicity
­
48
hr.
acute
toxicity
(
outfall
001)
50%
mortality
228
Toxicity
if
biocides
added
(
Outfall
002)
No
limit
­
report
228
Toxicity
­
(
48
hour
LC
50)
(
Outfall
001)
survival
in
100%
effluent
230
Toxicity
IC25
(
Outfall
001)
Survival,
reproduction
and
growth
in
100%
effluent
­

annually
230
Toxicity
IC25
(
Outfall
002)
Survival,
reproduction
and
growth
in
100%
effluent
­
if
biocides
added
231
Toxicity
­
48
hour
acute
(
Outfall
001)
50%
mortality
232
IC25
(
Outfall
002)
Survival,
reproduction
and
growth
in
100%
effluent
­

annual
234
Toxicity
IC25
(
Outfall
001)
survival,
reproduction
and
growth
in
100%
effluent
­

1/
yr.

234
Toxicity
IC25
(
Outfall
002)
survival,
reproduction
and
growth
in
88.5%
effluent
235
Toxicity
­
48
Hr.
LC50
(
Outfall
001)
Report
­
no
limit
OW­
2004­
0032­
0952(
1)
Page
3
WQBEL­
based
Limits
for
Ash
Ponds
FacilityKey
Ash
Pond
Pollutant
Limit
235
Toxicity
­
96
Hr.
LC50
(
Outfall
003)
Survival
in
79.5%
effluent
­
if
biocides
used
235
Toxicity
NOEC
(
Outfall
003)
Survival,
reproduction
and
growth
in
23.9%
effluent
­
if
biocides
used
236
Toxicity
IC25
(
Outfall
002)
survival,
reproduction
and
growth
in
100%
effluent
245
TSS
Avg
<=
30
ppm,
Max
<=
100
ppm
245
Oil
&
Grease
Avg
<=
15
ppm,
Max
<=
20
ppm
245
pH
>
6.0
su
and
<
9.0
su
246
Total
Residual
Chlorine
.026
mg/
l
246
Total
Phosphorus
2.0
mg/
l
247
Oil
&
grease
Avg
15.0
mg/
l;
Max
20
mg/
l
247
TSS
Avg
30
mg/
l;
Max
100
mg/
l
247
Total
Phosphorus
Avg
2.0
mg/
l
247
Total
Organic
C
Max
110.0
mg/
l
247
pH
Avg
6.0;
Max
9.0
252
TSS
30
mg/
l
mo.
ave;
50
mg/
l
daily
max.

252
Oil
&
Grease
15
mg/
l
mo.
ave;
20
mg/
l
daily
max.

252
Total
Residual
Chlorine
0.0
ug/
l
per
month
252
pH
6.0
­
9.0
standard
units/
month
261
Arsenic
(
Outfall
005)
125
ug/
l
mo.
avg;
404
ug/
l
daily
max.

268
Iron
1.7
mg/
l
average
monthly
291
TSS
30
mg/
l
mo.
ave.;
100
mg/
l
daily
max.

291
Oil
&
Grease
15
mg/
l
mo.
ave.;
20
mg/
l
daily
max.

291
pH
6.0
SU
294
Copper
38
ug/
L
304
Ash
Pond
2:
TSS
Ave.
30
mg/
l;
84
max.

304
Ash
Pond
2:
Oil
&
Grease
Ave.
13.5
mg/
l;
17
max.

304
Ash
Pond
1:
TSS
Ave.
30
mg/
l;
93
max.

304
Ash
Pond
1:
Oil
&
Grease
Ave.
14
mg/
l;
18
max.

OW­
2004­
0032­
0952(
1)
Page
4