NC0000175_Permit Limits_19961016

MINING FACILITIES ON THE NORTH TOE RIVER
Permit Limits and Monitoring Requiremem
Facility
Unimin Schoolhouse Qtz.
Feldspar
9.1
Unimin Qtz (processing - new)
NPDES No
NC0000361
2480
NCO085839
NC0000353
172
Mon. avg.
Mon. avg.
Dail. max.
Frcq.
Mon. avg.
Dail. max.
Freq.
PF (MOD)
2.16
daily
0.682
3.5
Quay
TF (# /day)
TF (# /day)
109
218
daily
174
348
daily
TF (mg/l)
6.1
12.1
35
6
12
TSS ( # /da)
TSS ( #Ida )
450
721
daily
1568 '
3137
daily
TSS (mg/l�
25
40
25
54
I08
SS
SS
monitor
monitor
daily
monitor
monitor
daily
pH (SU)
6-10
610
daily
6-10
6-10
daily
Turb(NTU)
10
10
daily
10
10 •
daily
Tox
P/F 11%
P/F 10%
Qtdv
P/F 1.15%
P/F 11%
Qtdy
U,D
TF,'r'urb
7 F,Turb
TF,Turb,
pH
(daily)
pH
(fly --
(daily)
Facility
Unimin Qtz
weekly
9.1
Unimin Qtz (processing - new)
NPDES No
NCO(OX)175
2480
NCO085839
86
172
Mon. avg.
Dail. max.
Frcq.
Mon. avg.
Dail. max.
Frcq.
PF (MOD)
3.6
10
daily
0.682
P/F 6%
Quay
TF (# /day)
218
436
daily
2W
400
weekly
TF (in
7.3
14.5
3 /week)
35
'lU
TSS ( # /da)
1320
2640
daily
142
284
wcckly
fSS (IZI
44
88
25
50
SS
monitor
daily
monitor
daily
pH (SU)
6-10
daily
6-10
daily
Turb(NTU)
10
daily
10
weekly
Tox
P/F 11%
Qtrly
P/F 1.15%
Qtriv
U,D
TF,'r'urb
TF,Turb
pH
(weekly)
(fly --
3/week)
Unimin Crystal
NCO084620
Mon. avg. Dail. n)ax. Frcq.
50 1005 /Yg weekly
35 70
86.6 173.2 weekly
60 120
monitor daily
6-10 daily
10 daily
LC50>65 %QWy
TF (wkly)
Turb.
pH (daily)
4
THIS IS THE CURRENT MONITORING AND LIMIT SCHEME FOR THE MINING FACILITIES AS OF 10196.
October 16. 1996
K -T Feldspar
NC0000400
Mon. avq. Dail. max. Freq.
1.73
132
264
weekly
9.1
18.2
1240
2480
weekly
86
172
monitor
daily
6-10
daily
10
daily
P/F 6%
Quay
TF,Turb.
PH
(daily --
3 /week)

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