NC0000272_Worksheets_20240628

Blue Ridge Paper Outfall 001
NC0000272 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 4.9 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) =
4.9000
WWTP/WTP Class: IV
1 Q l OS (cfs) =
42.64
IWC% @ 1 Q l OS =
15.11894098
7Q 1 OS (cfs) =
52.00
IWC% @ 7Q 1 OS =
12.74435775
7Q 1 OW (cfs) =
63.00
IWC% @ 7Q 1 OW =
10.75855231
30Q2 (cfs) =
89.90
IWC% @ 30Q2 =
7.790143084
Avg. Stream Flow, QA (cfs) =
325.00
IW%C @ QA =
2.283558081
Receiving Stream: Pigeon River
Stream Class: C
COMBINED HARDNESS (mg/L)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
H
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
CY
a
n
Chronic Applied
Acute
n 9 Det. Max Pred Cw Allowable Cw
Standard
Acute (FW): 2,248.8
Arsenic
C
150 FW(7Q10s) 340
ug/L
no limit
1 0
31.0
Chronic (FW): 1,177.0
no monitoring
C.V. (default)
Max MDL
Arsenic
C
10 HH/WS(Qavg)
ug/L
Note: n < 9
NO DETECTS
_=10
Chronic (HH): 437.9
Limited data set
Max MDL = 10
Acute: 429.92
no limit
Beryllium
NC
6.5 FW(7Q10s) 65
ug/L
1 0
3.10
__ _
Note: n < 9
C.V. (default)
_
Chronic: 51.00
no monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: 12.840
no limit
Cadmium
NC
1.0015 TR(7QIOs) 1.9412
ug/L
1 0
3.100
Note: n < 9
C.V. (default)
Chronic: 7.858
no monitoring
Limited data set
NO DETECTS
Max MDL = 1
Acute: NO WQS
Chlorides
NC
230 FW(7Q10s)
mg/L
0 0
N/A
no limit
Chronic:-----1,804.7 -----------------------------
no monitoring
Acute: NO WQS
Chlorinated Phenolic Compounds
NC
1 A(30Q2)
ug/L
0 0
N/A
no limit
Chronic:----- 12.8
no monitoring
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
1 0
7.8
__ _ _____ _ _ _____________________________
no limit
Note: n < 9
C.V. (default)
Chronic: 3,851.0
no monitoring
Limited data set
NO DETECTS
Max MDL = 2.5
Acute: 5,986.4
Chromium III
NC
117.7325 FW(7Q10s) 905.0818
µg/L
0 0
N/A
no limit
Chronic:----- 923.8
no monitoring
Acute: 105.8
no limit
Chromium VI
NC
11 FW(7Q10s) 16
µg/L
0 0
N/A
Chronic:----- 86.3 ------------------------------
no monitoring
Chromium, Total
NC
µg/L
1 0
15.5
Max reported value = 2.5
Note: n < 9
C.V. (default)
Limited data set
I NO DETECTS
Max MDL = 5
NC0000272_Worksheets_20240628, rpa
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Blue Ridge Paper Outfall 001
NC0000272 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 4.9 MGD
Acute: 69.26
no limit
Copper
NC
7.8806 FW(7Q10s) 10.4720
ug/L
3 2
15.00_
Note: n < 9
C.V. (default)
Chronic: 61.84
no monitoring
Limited data set
No value > Allowable Cw
Acute: 145.5
no limit
Cyanide
NC
5 FW(7Q10s) 22
10
ug/L
1 0
31.0
Note: n < 9
C.V. (default)
Chronic: 39.2
no monitoring
Limited data set
NO DETECTS
Max MDL = 10
Acute: NO WQS
Fluoride
NC
1800 FW(7Q10s)
ug/L
1 0
1,550.0
no limit
Note: n < 9
C.V. (default)
_ _____ _ _ _____________________________
Chronic: 14,123.9
no monitoring
Limited data set
NO DETECTS
Max MDL = 500
Acute: 499.288
no limit
Lead
NC
2.9416 FW(7Q10s) 75.4871
ug/L
1 0
15.500
Note: n < 9
C.V. (default)
Chronic: 23.082
no monitoring
Limited data set
NO DETECTS
Max MDL = 5
Acute: NO WQS
Mercury
NC
12 FW(7Q10s)
0.5
ng/L
1 0
6.2
no limit
Note: n < 9
C.V. (default)
Chronic: 94.2
no monitoring
Limited data set
NO DETECTS
Max MDL = 2
Acute: NO WQS
Molybdenum
NC
2000 HH(7Q10s)
ug/L
1 1
587.8
_ _____ _ _ _____________________________
no limit
Note: n < 9
C.V. (default)
Chronic: 15,693.2
no monitoring
Limited data set
No value > Allowable Cw
Acute (FW): 2,217.1
Nickel
NC
37.2313 FW(7Q10s) 335.2087
µg/L
no limit
1 0
15.5
Chronic (FW): 292.1
no monitoring
Note: n < 9
C.V. (default)
Max MDL _=5
Nickel
NC
25.0000 WS(7Q10s)
µg/L
Limited data set
NO DETECTS
Chronic (WS): 196.2
Max MDL=5
Acute: 370.4
no limit
Selenium
NC
3.1 FW(7Q10s) 56
ug/L
1 0
31.0
Note: n < 9
C.V. (default)
Chronic: 24.3
no monitoring
Limited data set
NO DETECTS
Max MDL = 10
Acute: 1.960
no limit
Silver
NC
0.06 FW(7Q10s) 0.2964
ug/L
1 0
15.500
Note: n < 9
C.V. (default)
Chronic: 0.471
no monitoring
Limited data set
NO DETECTS
Max MDL = 5
Acute: 831.4
no limit
Zinc
NC
126.7335 FW(7Q10s) 125.7052
ug/L
2 1
261.5
Note: n < 9
C.V. (default)
__ _ _______ _______________________________
Chronic: 994.4
no monitoring
Limited data set
No value > Allowable Cw
Acute-
0 0
N/A
Acute-
0 0
N/A
Acute:
NC0000272_Worksheets_20240628, rpa
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Blue Ridge Paper Outfall 001
NC0000272 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 4.9 MGD
0 0
N/A
Acute-
0 0
N/A
Chronic:--------------------------------------
NC0000272_Worksheets_20240628, rpa
Page 3 of 3 11 /4/2024