NC0021849_Wasteload Allocation_19921113

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0021849
PERMITTEE NAME: Town of Hertford
FACILITY NAME: Hertford Wastewater Treatment Plant
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 0.400 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
POTW
STREAM INDEX: 30-6411
RECEIVING STREAM: the Perquimans River
Class: C-Swamp
Sub -Basin: 03-01-52
Reference USGS Quad: C33NW, Hertford (please attach)
County: Perquimans
Regional Office: Washington Regional Office
Previous Exp. Date: 2/28/93 Treatment Plant Class: II
Classification changes within three miles:
Ca. 1 mi. to N-S Railway Br. -> SC.
Requested b,
Prepared by:
Reviewed b}
-i"Ot>"
wkt el
C
Modeler
#
-
ivEt
11�zI
Drainage Area (mil ) 9g Avg. Streamflow (cfs): *45
7Q10 (cfs) -<<oAL Winter 7Q10 (cfs) -nogL_ 30Q2 (cfs) mcAL_
Toxicity Limits: IWC N(A % Acute/Chronic
Instream Monitoring:
Parameters
Upstream ur- Location
Downstream N2. Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
30
30
NH3-N (mg/1)
D.O. (mg/1)
TSS (mg/1)
30
30
F. Col. (/100 ml)
Zpo
Zoo
PH (SU)
6 S
6-9
Rr'310UAL CJ%be►NE
MONrto2
moN�-t02
-�mfx tnZURE °G�
hyt V02
mcpm T+OL
-T"I%L P "Fp %WM's
rV%QMT102
mON 6fl—
'S DIAL A �6CN
("Wh) lioq
MVA rl*r

�.R
7— .2
7
1007 %J
A.WaIerk
Trailer -T-a-n k-.-I
Park
-2
n
,
j
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r — i i \'� - - _ _ /� Bear Garden
P po, - nt oint 3
_
M.
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f
D06
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2
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Jl�
ROAD CLASSIFICATION
PRIMARY HIGH%VAY LIGHT -DUTY ROAD. HARD OR
HARD SURFACE 111001110111ow IMPROVED SURFACE
E-ECONDARY HIGHWAY
HARD SURFACE UNIMPROV'D ROAD
Latitude 36'12'07" Longitude 76128'48"
Map # C33NW Sub -basin 30152
Stream Class C-Swam
Discharge Codes 01
Receiving Stream Perquimans River
Design-C-Q-A,,-LrLY-QQ-Permit-p-xpi-resLO2-/28./­03--
SCALE 1:24 000
0 1 MILE
0 7000 FEET
0 1 KILOMETER
CONTOUR INTERVAL 2 METERS
QUAD LOCATION
Town of Hertford WWTP
NCO021849
Perquimans County

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Request #
Town of Hertford WWTP
NCO021849
100% Domestic
Existing
Renewal
Perquimans River
C - Swamp
03-01-52
Perquimans
Washington
Shanklin
10/6/92
C 33 NW
RECEIVED
WASHINGTON OFFICE
NOV 0 2 1992
7127 D. E M.
Stream Characteristic:
Tidal
USGS #
02.0438.9200
Date:
1986
Drainage Area (mi2):
94
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
75
30Q2 (cfs):
IWC M:
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Chlorine letter
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: -<-'
Farrell Keough
Date: c zb
Reviewed by
Instream Assessment: Date:
Regional Supervisor: J' Date:
Permits & Engineerin < Date:
NOV 2 7 1992
RETURN TO TECHNICAL SERVICES BY:

2
Existing limits:
Wasteflow (M[GD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/l):
Temperature (°C):
TP (mg/1):
TN (mg/1):
Recommended Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Temperature (°C):
TP (mg/1):
TN (mg/1):
Limits Changes Due To:
PARAMETERS
Monthly Average
Summer Winter
0.40
30
nr
nr
30
200
6-9
monitor
monitor
monitor
monitor
Monft Averagg
S /W WQorEL
0.40
30 EL
30 EL
200 EL
6-9 EL
monitor
monitor
monitor
monitor
Change in 7Q10 data
New regulations/standards
New procedures
New facility information
Change in stream classification
Other
Parameter(s) Affected
x Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality,based
effluent limitations for additional dischargers. within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: nr
Downstream Location: nr ,
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adr4uacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan) -
Additional Information attached? (Y or N) If yes, explain with attachments.

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08/29/92
GKEX88/MP
COMPLIANCE
EVALUATION
ANALYSIS REPORT
PAGE
i
'
REPORT
PERIOD, 9i07-9206
LOC---
E2
PERMIT
- -NC002i849
PIPE--0Oi
CLASS--
DESIGN FLOW--
.4000
FACILITY--HERTFORD
WWTP' TOWN
OF
PERQUIMAN%
'LOCATION--HERTFORD
REGION/COUNTy--07
003i0
00530
006iO
3i6i6 50060
000iO
0040O
50O50
COLT CHLORINE
TEMP
PH
MONTH
Q/M�D
BOD
RE%/T%%
+
NH3-
FEC
3O.O0
F 30.0
NOL
F 200.0
NOL
NOL
0
9^6_74
6^
LIMIT
F .4000 F
^O
25 4O
7^
^
9i/O7
Al .9O
17.0
7.2O
.0
.3077
22.0
5.40
20.5
^026
24,40
7 ^7-7
^6
91/08
.3093
6.iO
6.90
.O
.024
24.20
7.5-7.5
9i/09
.2450
13.50
23.0
7.90
i8.O
6.00
25.1
^026
20,40
7. 8 -
7, 7
9100
.285i
14.90
i0.4
6.60
58.5
.025
i5.75
7.6-7.1
9i/ii
.2153
7.20
3.2
.025
14.20
7.6-7.6
002
.2074
i2.00
8.i
2.49
3.2
.026
i2.50
7.3-7.i
92/0i
.2609
5.50
iO.9
3.2
i2.50
7.5-7.3
92/02
.2506
8.05
13.0
6.30
.027
8.i0
ii.4
.O26
i4.00
7.5-7.
5
92/03
.2470
9.8O
i7.5
8.20
ii.O
6.60
10
^025
15.75
7 5-7.5
92/04
.23iO
13.5
9.90
.0
.023
i8.25
7.5-7.4
92/05
.2500
iO.95
iO.50
859.5F
.028
19.60
7.5-7.4
92/06
.2600
8.20
17.0
AVERA(;E
2557
^400O
9.i6
i5.i
6.93
82.0
.059
18.07
_----�--
23.00
25.0
10.50
42000.0
.5OO
26.00
/."oo
MAXIMUM
^^^
3^3
^
2 49
LE%%THAN
^ OiO
ii^00
7^iO0
MINIMUM
^ i40O
i^00
DE� C
%U
UNIT
M�D
M�/L
M�/L
M�/L
�/iOOML
MG/L
--- ^

�KEX88/MP
COMPLIANCE
EVALUATION
ANALY%I% REPORT
PA�E 2
'
REPORT
PERIOD
9iO7-92O6
PERMIT--NC0O2i849
PIPE--0Oi
FLOW_-
400LOC---EA%%__2
��
FACILITY--HERTFORD
WWTP,
TOWN OF
DE%I�N
^
RE ... ION/COUNTY--�/
�
pERQU�MANo
'LOCATION--HERTFORD
,
0O600
0O665
MONTH
TOTAL N PHO%-TOT
LIMIT
9i/07
9i/i2 i2.700 .6000
92/03 i6.840 .5600
92/04
92/05
sm

. ^ ~
�KEX88/MP
EVALUATION
ANALY%I% REPORT
PA�E i
COMPLIANCE
-- NCO�2i849
PIPE--0Oi
REPORT
PERIOD� 9O07-9i06
LOC---EA%%
--2
PERMIT
»
DE%I�N FLOW--
.400O
�L
FACILITY--HERTFORD
WWT�'
TOWN OF
RE�I
ON/COUNTy--07
PERQUIMAN%
'LOCATION--HERT
FORD
50O50
O03iO
0053O
O06iO
3i6i6 5O86O
0OOiO
�O400
NH3+NH4
FEC COLI CHLORINE
TEMP
PH
Milt],
OO
F 3O.O
NOL
F 2OO.0
NOL
9.O 6.0
LIMIT F
4000
^2387
F 3O
i4 2
i0.88
.8
^
25.6�
/.z-/.z
2i^5O
9O/O8
.3096
i5.50
i2.0
7.8O
.O
^
25.25
^
0
23.25
7.5-7.4
9O/09
.2886
i8.50
8.4
^
^
2i.00
7.6-7.5
9O/i0
.2332
i2.95
i3.0
6.90
.O
^
i6.0O
9O/ii
.2466
ii.00
27.i
iO.2O
.O
^
3.2
i5^00
7.5-7.3
90/i2
.2677
i2.0O
i4.5
^
i2.00
7.5-7.i
9i/Oi
.32i6
iO.3O
i5.0
i.83
.O
^
i7.50
i3.5
5.iO
.0
^
i3.00
7.5-7.2
9i/02
.297�
9i/03
.3393
i3.25
i2.7
i.7i
i0.O
^
i4.25
7.4-7.3
9.7
0
i8 40
7 7-7.2
9i/O4
.33O6
iO.00
2O 75
7 6-7 3
i5.4
i3.50
.O
.4
24.75
7.5-7.5
9�/O6
.232O
i6.O0
28i4
�4
75
i4.4
7.49
i.i
�
.4i5
i9.iO
__-�-���
AVERA�E
��
^
^
i3 5O
iOO O
^ 800
27 ^
MAXIMUM
4O8O
^`�``
25
00
62 O
^
^
MINIMUM
i4OO
^
UNIT
M�D

�KEX88/MP
EVALUATION
ANALY%I% REPORT
PA�E 2
COMPLIANCE
'
-- NCOO2i849
PIPE--O0i
REPORT PERIOD� 90O7-9iO6 LOC--_EA%%
PERMIT
FLOW-- 4000
2
�L --
FACILITY
-- RD HERTFO
WWTP
'
TOWN OF
DE%I�N ^
'LOCATION--HERTFORD
RE�ION/COUNTY--07 PERQUIMAN%
OO60O
00665
'
MONTH
TOTAL N PHO%-TOT
LIMIT
9O/07
90/O8
LIMIT NOL NOL
90/O9 i5.92O .36OO
90/i2 ii.82O .8O00
9i/O3 5.47O .2000
9i/O6
33.760
.44OO
i6.742
.45OO
AVERA�E
33.76O
MAXIMUM
.8000
5.47O
MINIMUM
.2O00
UNIT
M�/L
M�/L

�KEX88/MP
PA�E
�
COMPLIANCE
EVALUATION
ANALY%I% REPORT
^ PERMIT -NC002i849
-
PIPE--O0i
REPORT
PERIOD�
89O7-9O06
LOC--_EA%%
--2
TOWN
OF
DE%I�N FLOW--
FACILITY --
HERTFORD
WWTP
'
REC'ION/COUNTY--07
PERQU IMAN%
'LOCATION--HERTFORD
O03iO
OO53O
006i0
3i6i6
50O6O
0OOiO
OO400
50050
N
NH3+H4-
FEC COLI
CHLORINE
TEMP
PH
MONTH
�
Q/MD
BOD
RE%/T%%
NOL
F 2OO^O
9^�_6^0
LIMIT F
.4O00 F
3O.O0
F 3O.O
26NOL
8
89/7
.2596
23.50
i3.5
5.4 0
^
26.5O
7.2-7.i
i8.00
i8.O
2.04
.O
89/08
.3i06
25.25
7.5-7.3
iO 4
6.3O
.0
^
89/O9
^ 2693
8 95
^
^
23 4O
^
^
89/i0
.296i
26.5O
i3.0
3.9O
i0.20
ii.5
4.50
.0
^
S.
89/ii
.3393
89/i2
26.6O
i6.5
.294i
3.32,
90/0i
.2629
9.2O
i2.0
A
i4.0O
7.3-7.2
90/02
.2i78
i3.50
14.5
2.55
.0
14.O
4.8O
.0
^
i5.25
2
90/03
.2590
i8.50
9O/04
.2566
ii.90
i3.O2
i7.�
8.7O
^O
.4
2O.5O
7.5-7.3
90/O5
.2580
i6.00
9O/O6
254O
^
9 85
^
i9 O
8.7O
.O
A22.75
N
7.5-7.4
^
0
i.8
w
i9.84
AVERA�E
273i
^4000
i6 05
i4.3
5.O8
8.7O
500.O
.478
i.iO0
27.0O
_--�-���
/^�oo
MAXIMUM
^
46^O0
^
22 O
i3^0O
7^00O
5^O
2 O4
LE%%THAN
20O
MINIMUM
^i5OO
2^7O
UNIT

�KEX88/MP
REPORT
PA�E 2
COMPLIANCE
EVALUATION ANALY%I%
'
LOC--_EA%%
E PIP--O0i
REPORT PERIOD�
8907-9OO6
--
PERMIT NC0O2i849
DE%I�N
FLOW--
.4000 �L --2
FACILITY--HERTFORD
WWTP' TOWN
OF
RE�ION/COUNTy--O7
PERQUIMAN%
^LOCATION--HERTFORD
O06OO
OO665
MONTH
TOTAL N PHO%-TOT
LIMIT
89/07
89/O8
LIMIT NOL NOL
89/O9 .O40 .52O0
89/i2 i0.520 .2800
90/O2
9O/03 i2.670 .52O0
`8/86 2O.73O .040O