NC0026913_Speculative Limits_19940602

NPDES DOCUMENT :MCANNINO COVER SHEET
NC0026913
Sparta WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Meeting Notes
Instream Assessment (67b)
t«_Speculative
Limits
Environmental Assessment (EA)
Document Date:
June 2, 1994
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MODEL RESULTS
Discharger : TOWN OF SPARTA
Receiving Stream : LITTLE RIVER
Ell.f;_
The End NROD
• 7_
SUMMER
MODEL W/ SPARTA @ 0.95 MGD
WLA WLA WLA
DO Min CBOD NBOD DO Waste F1
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 6.72 0.00 1
Reach 1
45.00 28.10
0.00 0.9500(

*** MODEL SUMMARY DATA ***
Discharger : TOWN OF SPARTA Subbasin : 050"
Receiving Stream : LITTLE RIVER Stream Class: C
Summer 7Q10 : 9.9
Design Temperature: 23.0
Winter 7Q10 : 14.8
'LENGTH' SLOPEI VELOCITY DEPTH' Kd I Kd I Ka I Ka I KH KN I KNR I KNR.
I mile 1 ft/ail fps ft 'design' CO, Idesigal @200 (design 820° (design( N0°
I I I I I I 1( 1 1 1 I
Segtent 1 I 2.701 19,501 0.431 1 1,33 10,36 10,311 111.65 110,921 0.33 ( 0.30 10.38 10,00
ReacII 1 1 I ( 1 1 ( 1 1 1 f I
I Flow 1 CBOD 1 NBOD 1 D.O. 1
I cfs 1 mg/1 I mg/1 1 mg/1 I
Segment 1 Reach 1
Waste I 1.472 1 45.000 1 28.100 1 0.000
xeadwatersl 9.900 ( 2.000 1 1.000 1 7.720
Tributary I 0.000 I 2.000 1 1.000 1 7.720
* Runoff I 0.000 1 2.000 1 1.000 1 7.720
* Runoff flow is in cfs/mile

Seg #
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Seg #
Reach 4 I Seg Mi
1 0.00
1 0.10
1 0.20
1 0.30
1 0.40
1 0.50
1 0.60
1 0.70
1 0.80
1 0.90
1 1.00
1 1.10
1 1.20
1 1.30
1 1.40
1 1.50
1 1.60
1 1.70
1 1.80
1 1.90
1 2.00
1 2.10
1 2.20
1 2.30
1 2.40
1 2.50
1 2.60
1 2.70
Reach # I Seg Mi
1
D.O. I CBOD
6.72 7.57
6.95 7.53
7.14 7.49
7.30 7.45
7.44 7.42
7.56 7.38
7.66 7.34
7.74 7.30
7.81 7.27
7.88 7.23
7.93 7.19
7.97 7.16
8.01 7.12
8.04 7.09
8.07 7.05
8.10 7.01
8.12 6.98
8.13 6.94
8.15 6.91
8.16 6.87
8.17 6.84
8.18 6.80
8.19 6.77
8.20 6.74
8.21 6.70
8.21 6.67
8.22 6.63
8.22 6.60
D.O. I CBOD
SUMMER
MODEL W/ SPARTA @ 0.95 MGD
I NBOD I Flow I
4.51 11.37
4.48 11.37
4.46 11.37
4.44 11.37
4.41 11.37
4.39 11.37
4.37 11.37
4.34 11.37
4.32 11.37
4.30 11.37
4.27 11.37
4.25 11.37
4.23 11.37
4.21 11.37
4.18 11.37
4.16 11.37
4.14 11.37
4.12 11.37
4.09 11.37
4.07 11.37
4.05 11.37
4.03 11.37
4.01 11.37
3.99 11.37
3.96 11.37
3.94 11.37
3.92 11.37
3.90 11.37
I NBOD I Flow

MODEL RESULTS
Discharger : TOWN OF SPARTA
Receiving Stream : LITTLE RIVER
WINTER
MODEL W/ SPARTA @ 0.95 MGD
The End D.O. is 10.51 mg/l.
The End CBOD is 5.50 mg/1.
The End NBOD is 7.74 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste F1<
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 8.82 0.00 1
Reach 1 45.00 79.65 0.00 0.9500(

*** MODEL SUMMARY DATA ***
Discharger : TOWN OF SPARTA Subbasin 050"
Receiving Stream LITTLE RIVER Stream Class: C
Summer 7Q10 . 9.9
Design Temperature: 12.0
Winter 7Q10 : 14.8
11ENGTHI SLO?EI VELOCITY 1 DEPTH' Kd I Kd I Ka I Ka 1 KN I KN ; KNR I KNR
mile I ft/mil fps ' ft 'design' 020° 'design' ?200 ;design' @20° 'design' C20°
1 1 I 1 I I 1 1 1
Segnent 1 ' 2,701 19,501 0,563 1 1.39 10,23 1 0.34 112,00 114.281 0.1E 10,30 1 0,16 10,00
Reach 1 1 I I 1 I 1 1 1 1 I
1 Flow 1 CBOD 1 NBOD 1 D.O. 1
1 cfs 1 mg/1 1 mg/1 1 mg/1 1
Segment 1 Reach 1
Waste 1 1.472 1 45.000 1 79.650 I 0.000
Headwaters) 14.800 1 2.000 1 1.000 1 9.700
Tributary 1 0.000 1 2.000 1 1.000 1 9.700
* Runoff I 0.000 1 2.000 1 1.000 1 9.700
* Runoff flow is in cfs/mile

[
(
Seg # [ Reach
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
Seg # I Reach
Tr
[
#[
Seg Mi
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
Seg Mi
[
[
D.O. [ CBOD
8.82 5.89
9.03 5.88
9.22 5.86
9.38 5.85
9.53 5.83
9.65 5.82
9.76 5.80
9.86 5.79
9.94 5.77
10.02 5.76
10.09 5.74
10.14 5.73
10.19 5.71
10.24 5.70
10.28 5.68
10.31 5.67
10.34 5.66
10.37 5.64
10.39 5.63
10.41 5.61
10.43 5.60
10.45 5.58
10.46 5.57
10.48 5.56
10.49 5.54
10.50 5.53
10.51 5.51
10.51 5.50
D.O. 1 CBOD
WINTER
MODEL W/ SPARTA @ 0.95 MGD
NBOD [ Flow
8.12 16.27
8.10 16.27
8.09 16.27
8.07 16.27
8.06 16.27
8.05 16.27
8.03 16.27
8.02 16.27
8.00 16.27
7.99 16.27
7.98 16.27
7.96 16.27
7.95 16.27
7.93 16.27
7.92 16.27
7.91 16.27
7.89 16.27
7.88 16.27
7.86 16.27
7.85 16.27
7.84 16.27
7.82 16.27
7.81 16.27
7.80 16.27
7.78 16.27
7.77 16.27
7.75 16.27
7.74 16.27
[ NBOD [ Flow [

SPARTA WWTP
Residual Chlorine
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Concentration (ug/I)
Fecal Limit
Ratio of 6.7 :1
Ammonia as NH3
(summer)
9.9 7010 (CFS)
0.95 DESIGN FLOW (MGD)
1.4725 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL (MG/L)
12.95 IWC (%)
131.30 Allowable Concentration (mg/I)
Ammonia as NH3
(winter)
7010 (CFS)
200/lOOm1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (MG/L)
IWC (%)
Allowable Concentration (mg/I)
9.9
0.95
1.4725
1.0
0.22
12.95
6.24
14.8
0.95
1.4725
1.8
0.22
9.05
17.68
NC0026913
6/2/94

PRETREATMENT HEADWORKS REVIEW 06/02/94
Discharger:
Receiving stream:
Stream Class:
7Q10:
Design flow:
Actual flow:
Percent industrial:
IWC:
SPARTA WWTP
LITTLE RIVER
C
cfs
mgd
mgd
9.9
1.0
0.2366
17.0%
12.9
NPDES Permit No.:
Subbasin:
NC0026913
050703
Actual Actual Total Permitted Total Observed
Domestic Industrial Actual Industrial Permitted Effluent
Pollutant Standard Removal Load Load Load Load Load Conc.
(ug/1) Eff. (lbs/day) (lbs/day) (lbs/day) (lbs/day) (lbs/day) (ug/1)
Cadmium 2 S 0.00 0.000
Chromium 50 S 0.00 0.000
Copper 7 AL 0.00 0.000
Nickel 88 S 0.00 0.000
Lead 25 S 0.00 0.000
Zinc 50 AL 0.00 0.000
Cyanide 5 S 0.00 0.000
Mercury 0.012 S 0.00 0.000
Silver 0.06 AL 0.00 0.000
Arsenic 50 S 0.00 0.000
Predicted Predicted Predicted
Allowable Effluent Effluent Instream Based on Based on Based on
Allowable Background Effluent Conc Conc Conc ACTUAL PERMIT OBSERVED
Load Conc Conc ACTUAL PERMIT OBSERVED Influent Influent Effluent
(lbs/day) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data
Cadmium 0.11 0 15.447 0.000 0.000 0.000
Chromium 2.77 0 386.163 0.000 0.000 0.000
Copper 0.39 0 54.063 0.000 0.000 0.000
Nickel 4.87 0 679.647 0.000 0.000 0.000
Lead 1.38 0 193.081 0.000 0.000 0.000
Zinc 2.77 0 386.163 0.000 0.000 0.000
Cyanide 0.28 0 38.616 0.000 0.000 0.000
Mercury 0.00 0 0.093 0.000 0.000 0.000
Silver 0.00 0 0.463 0.000 0.000 0.000
Arsenic 2.77 0 386.163 0.000 0.000 0.000