NC0040011_Wasteload Allocation_19910401

NPDES DOCIMENT SCANNINO COVER SHEET
NPDES Permit:
NC0040011
Yanceyville WWTP
Document Type:
Permit Issuance
Wasteload Allocation '-?
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 1, 1991
This document is; printed oa reuse paper - ignore aiwy
content on the re'eriae aide

'A p
REQUESTDESWASThLOAD
PERMIT NO.: NC00400 11
PERMITTEE NAME: Town of Yanceyville / Yanceyville WWTP
Facility Status: Existing
Permit Status: Modification
Major Minor
Pipe No.: 001
Design Capacity: 0.25 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
expand from 0.2 MGD to 0,25 MGD
RECEIVING STREAM:
Class: WS-III
Sub -Basin: 03-02-04
Country Line Creek
Reference USGS Quad: B 21 NE (please attach)
County: Caswell
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 3/31/94 Treatment Plant Class: Class 2
Classification changes within three miles:
Requested by:
Prepared by:
Reviewed by:
U3Q.1 eu - -
Rosanne Barona
C„J„q,LQ,D., _ Date:
t35 LS/v.)
245/4t!,
Date: 9/24/90
�r1sEo
Date:
Modeler
Date Rec.
#
al Z4ic)o
s86,6
Drainage Area (mil ) 4%4 Avg. Streamflow (cfs): 44-
7Q10 (cfs) (. Z Winter 7Q10 (cfs) 4. 9 30Q2 (cfs) 6.4
Toxicity Limits: IWC Z4 % Acut
Instream Monitoring: Q P/F M0r11To2 1 s� tZ f.ious
c c. LIMIT RFre-►2 4 2 Me MS
Parameters Do, Tc v►?, coev. .
Upstream )L Location Ar ts-r l oa uP
Downstream V Location Ar }ivof (v Z
Effluent
Characteristics
Summer
Winter
B0D5 (mg/1)
3 ©
30
NH3-N (mg/1)
:_ .
D.O. (mg/1)
TSS (mg/1)
9 0
q o
F. Col. (/100 ml)
240
Z 0
pH (SU)
67 _ c3
6. _ 1
1 3.1'''-'r
PLOTTED
0
;�r N Rtc-tr.tty SHOULD PertFo2-Nt e ppLuENT
Mbn rrog lhtrf N 3 —/J DuCT t Vi TY.
s wtvG ‘'tArt (� t. • c 5.,:-cc Z we _ wt o O ccc .

WASTELOAD ALLOCATION APPROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Fecal
Yanceyville WWTP
NC0040011
100% Domestic
exist/modif
Country Line Creek
WS-III
030204
Caswell
WSRO
R. Barona
9/24/90
B21NE
Drainage
Summer
Winter
Average
RECOMMENDED EFFLUENT LIMITS
Wasteflow (mgd) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1) :
TSS (mg/1) :
coliform (#/100m1):
pH (su) :
EXISTING
sum/win
0.20
30
Upstream (Y/N) : N
Downstream (Y/N): N
90
1000
6-9
Request No.: 5866
RECEIVED
area:
7Q10:
7Q10:
flow:
30Q2:
R�. LL,,L. NRCD
DEC 0 4 1990
Winston -Salim
Regional Moe
1990
49.400 sq mi
1.20 cfs
4.90 cfs
44.00 cfs
6.40 cfs
PROPOSED
sum/win
0.25
30
g�
�ai a; - 3.4/21.8
AMV el.
DEC'1 1930
PFRMITS R r-n!�!NrF?!{kir,
MONITORING
Location:
Location:
COMMENTS
90
200
6-9
Yanceyville operates a lagoon treatment system currently at 0.20 MGD.
The facility wishes to reach its total design capacity of 0.25 MGD.
(i.e. this is not exactly a plant expansion)
If there is a modification to the plant, then the facility should be
required to meet a chlorine limit of 28 ug/1 (chlor/dechlor or3UV d'E
fection should be implemented) . Efilfl-i' oucf- L. Ok l2,74c6"
Yanceyville is currently meeting their limits.
Recommended by: - I.,,k.k- /, %�i,�t— Date: ! i/Z J/go
Reviewed by
Tech Support Supervisor:
4AmRegional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL
Date:
1116
ZcLAit Date: (1/7ft
l i �aslti�
SUPPORT BY:
Date: 5 .c�i0
DEC 2 8 1990

DIVISION OF ENVIRONMENTAL MANAGEMENT
April 8, 1991
Memorandum
To: Dale Overcash
From: Susan A. Wilson tt
Through: Ruth Swanek 'QC5
Carla Sanderson
Subject: Town of Yanceyville
Draft Permit Comments
NPDES No. NC0040011
Caswell County
Technical Support has received Mayor Curtis E. Davis' comments (dated March 18, 1991)
in regard to the draft permit for the Town of Yanceyville.
The following items are in response to the contentions of the subject draft permit:
Item 1-- Ammonia Limitation:
The Town of Yanceyville has been informed of the Water Quality Section Chiefs decision
to implement quarterly whole effluent toxicity testing in lieu of an ammonia limit. The
facility will be required to perform whole effluent toxicity monitoring at 24% effluent for
the first twelve months, with a limit to be implemented after the twelve month period. If
the facility is unable to meet the whole effluent toxicity limit, the permit may be reopened
and the ammonia limit may be reinstated. The Town should be aware that upon its
additional 0.2 MGD expansion (in which case major modifications would be made to the
plant) an ammonia limit would have to be met.
Technical Support recommends that the facility continue to conduct effluent NH3-N and
conductivity monitoring. Additionally, the Town of Yanceyville WWTP should begin
instream monitoring for fecal coliform, dissolved oxygen, conductivity, and temperature to
ensure that the dissolved oxygen standard instream will be met. Due to the elimination of
the NH3-N limit, current modeling procedures predict a possible violation in the instream
D.O. standard at design conditions. Instream monitoring data will enable the Water Quality
Section to assess the impact of the discharge to Country Line Creek.
Item 2 -- Receiving Stream Classification Change:
Current classification information does indicate an end boundary of WS-III at Highway
62. DEM is currently investigating all WS boundaries to obtain firm information on WS
intakes. However, the proposed limitations for Yanceyville WWTP are not effected by this
WS-]TI classification (i.e. the same limits would be implemented if the classification were
ttCI.).
cc: Steve Mauney

(FAR I° l2 nwni5. AFfE2 IS3uANCE)
10/89
Facility Name IAtx.e/iiti..t.s WWI?
Pennit # N C 00Qao I 1
CHRONIC TOXICITY MONITORING REQUIREMENT (QRTRLY)
The perrnittee shall conduct chronic toxicity tests using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration defined as treatment two in the North Carolina procedure document is
24 %. The permit holder shall perform quarterly monitoring using this procedure to establish
compliance with the permit condition. The first test will be performed after thirty days from
issuance of this permit during the months of ma, iat-t 0cr, ..1AN . Effluent
sampling for this testing shall be performed at the NPDES permitted final effluent discharge below
all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was perfornied, using the parameter
code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 (.2- cfs
Permited Flow 0.2.5. MGD Recommended by:
IWC% 74-.4
Basin & Sub -basin o7o2-o4
Receiving Stream Ci u,Nray L.tnte LAMA..
County C.sWer..L Date
**Chronic Toxicity (Cerio) Monitoring at 21 %, APR . �u , Oro. SAV
See Part 3 , Condition A .
i

RF'fER l2MwM5. FRom lSSUANGel>
1O/S9
Facility Nanie $4%61%1114.6 WA Permit 1JC00 0
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is Z4 % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform quarter(v monitoring using this procedure to establish
compliance tavith the permit condition. The. first test will be performed after thirty days from
issuance of this permit during the months of APR, Sat. OcX, SAN ' . Effluent
sampling for this testing shill be performed at the NPDES permitted final effluent ells -charge below
all treatment processes.
All
toxicityg results required as part of this permit condition will be entered on the Effluent
Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT-1(original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 2761 1
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in.association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
•
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmenutl controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 1' 2 cfs
Perrnited Flow 0.25 MGD Recommended by:
IWC% 2'44
Basin & Sub -basin 030204
Receiving Stream Cjt2� I -I IV
g eggQ
K-
County CASwet..e,, Date If/4/q i
"-*Chronic Toxicity (Ceriodaphnia) 1'/F at 2
�c111C11i1oi1 .

•
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f
t +
Discharger
Receiving Stream
MODEL RESULTS
: YANCEYVILLE WWTP
: COUNTRY LINE CREEK
WINTER
QEFF=0.25 MGD, BOD5=30 MG/L
NH3-N=21.8 MG/L
The End D.O. is 9.31
The End CBOD is 2.90
The End NBOD is 3.54
mg/1.
mg/1.
mg/1.
Segment 1
Reach 1
Reach 2
Reach 3
Reach 4
DO Min
WLA
CBOD
(mg/1) Milepoint Reach # (mg/1)
8.60
0.00 1
SAV£D VANCCy vi. oltZ
1-BDATA 24,
45.00
0.00
0.00
0.00
WLA WLA
NBOD DO Waste Flow
(mg/1) (mg/1) (mgd)
98.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.25000
0.00000
0.00000
0.00000

*** MODEL SUMMARY DATA ***
•
Discharger : YANCEYVILLE WWTP Subbasin : 030204
.Receiving Stream : COUNTRY LINE CREEK Stream Class: WS-III
Summer 7Q10 : 1.2 Winter 7Q10 : 4.9
Design Temperature: 14.0
'LENGTH' SLOPE' VELOCITY 1 DEPTHI Kd 1 Kd 1 Ka 1 Ka 1 KN I
I mile 1 ft/mil fps 1 ft Idesign i @201/2 Idesign l @2014 Idesign'
Segment 1
Reach 1
1 1 1 1 1 1 1 1 I
0.851 9.091 0.222 11.29 1 0.18 10.24 1 3.19 1 3.641 0.19 I.
1 1 .1 1 1 I 1 1 1
1 1 1
Segment 1 1 0.201 9.091 0.231 1 1.33 1 0.18 10.24 1 3.32 1 3.781 0.19 1.
Reach 2 1 I I I I I I I I
•
1 1 1 1 1 1 1 1 1 1
Segment 1 I 1.401 4.881 0.193 1 1.45 1 0.17 1 0.22 1 1.49 I 1.701 0.19 I.
Reach 3 1 I I I I I I I I I
1 1 1
Segment 1 I 2.701 4.881 0.237 1 1.72 1 0.17 1 0.22 1 1.32 1 1.501 0.19 1
Reach 4 I I I I I I I I I 1
I Flow I CBOD 1 NBOD I D.O. I
I cfs 1 mg/1 1 mg/1 1 mg/1 I
Segment 1 Reach 1
Waste I 0.388 1 45.000 1 98.100 1 0.000
Headwaters) 4.900 I 2.000 I 1.000 1 9.280
Tributary I 0.000 1 2.000 1 1.000 I 9.280
* Runoff I 0.590 1 2.000 I 1.000 l 9.280
Segment 1 Reach 2
Waste I 0.000 I 0.000 1 0.000 1 0.000
Tributary I 0.340 I 2.000 I 1.000 1 9.280
* Runoff I 0.000 1 2.000 I 1.000 1 9.280
Segment 1 Reach 3
Waste I 0.000 I 0.000 I 0.000 1 0.000
Tributary I 0.000 1 2.000 1 1.000 I 9.280
* Runoff I 0.000 1 2.000 1 1.000 I 9.280
Segment 1 Reach 4
Waste I 0.000 I 0.000 1 0.000 I 0.000
Tributary I 4.400 1 2.000 1 1.000 1 9.280
* Runoff I 0.000 1 2.000 1 1.000 1 9.280
•

I 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
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Seg #
I Reach #
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
I Reach #
I Seg Mi
0.00
0.09
0.17
0.26
0.34
0.43
0.51
0.59
0.68
0.76
0.85
0.85
0.87
0.89
0.91
0.93
0.95
0.97
0.99
1.01
1.03
1.05
1.05
1.19
1.33
1.47
1.61
1.75
1.89
2.03
2.17
2.31
2.45
2.45
2.72
2.99
3.26
3.53
3.80
4.07
4.34
4.61
4.88
5.15
I Seg Mi
I D.O.
8.60
8.67
8.74
8.81
8.87
8.92
8.97
9.02
9.06
9.10
9.14
9.15
9.16
9.17
9.18
9.19
9.19
9.20
9.21
9.22
9.23
9.23
9.23
9.22
9.20
9.19
9.17
9.16
9.15
9.14
9.14
9.13
9.12
9.19
9.20
9.21
9.22
9.24
9.25
9.26
9.27
9.28
9.29
9.31
I D.O.
I CBOD
5.15
5.10
5.05
5.00
4.95
4.91
4.86
4.81
4.77
4.72
4.68
4.53
4.53
4.52
4.52
4.51
4.51
4.51
4.50
4.50
4.49
4.49
4.49
4.46
4.42
4.39
4.36
4.33
4.29
4.26
4.23
4.20
4.17
3.26
3.22
3.19
3.15
3.11
3.08
3.04
3.01
2.97
2.94
2.90
I CBOD
WINTER
QEFF=0.25 MGD, BOD5=30 MG/L
NH3-N=21.8 MG/L
I NBOD
8.12
8.01
7.91
7.82
7.72
7.62
7.53
7.44
7.35
7.26
7.18
6.83
6.83
6.82
6.81
6.81
6.80
6.79
6.79
6.78
6.77
6.77
6.77
6.71
6.65
6.60
6.54
6.49
6.43
6.38
6.33
6.28
6.22
4.04
3.99
3.94
3.88
3.83
3.78
3.73
3.68
3.64
3.59
3.54
I NBOD
I Flow I
5.29
5.34
5.39
5.44
5.49
5.54
5.59
5.64
5.69
5.74
5.79
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
6.13
10.53
10.53
10.53
10.53
10.53
10.53
10.53
10.53
10.53
10.53
10.53
Flow I

•
MODEL RESULTS
Discharger : YANCEYVILLE WWTP
Receiving Stream : COUNTRY LINE CREEK
SUMMER
QEFF=0.25 MGD, BOD5=30 MG/L
NH3-N=3.4 MG/L
The End D.O. is 6.53 mg/l.
The End CBOD is 3.52 mg/1.
The End NBOD is 0.82 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 5.25 2.45 3
Reach 1
Reach 2
Reach 3
Reach 4
sA� tit Da, otvc o , dt 2
1,6 ei rA Zc,
45.00
0.00
0.00
0.00
15.30
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.25000
0.00000
0.00000
0.00000

*** MODEL SUMMARY DATA ***
•
Discharger : YANCEYVILLE WWTP
Receiving Stream : COUNTRY LINE CREEK
Summer 7Q10 : 1.2
Design Temperature: 25.0
•
Subbasin : 030204
Stream Class: WS-III
Winter 7Q10 : 4.9
!LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd I Kd I Ka 1 Ka 1 KN 1
I mile 1 ft/mil fps I ft Idesignl @2034 Idesign l @20% !design'
Segment 1
Reach 1
1 1
0.851 9.091 0.100 1.05 0.28 0.22 1.82 1.64 0.44
1 1
1 1 1 1 1 1 1 1 I
Segment 1 1 0.201 9.091 0.100 1 1.09 1 0.28 1 0.22 1 1.82 1 1.641 0.44
Reach 2 1 1 1 1 1 1 1 1 I
Segment 1
Reach 3
I I
1.401 4.881
0.100 1 1.09 1 0.27 1 0.21 1 0.98 1' 0.881 0.44
Segment 1
Reach 4
I I
2.701 4.881
I I
0.100 1 1.38 1 0.27 1 0.21 1 0.98 1 0.881 0.44
1 Flow 1 CBOD 1 NBOD
1 cfs 1 mg/1 1 mg/1
Segment 1 Reach 1
Waste 1 0.388 1 45.000 1 15.300
Headwaters) 1.200 I 2.000 1 1.000
Tributary 1 0.000 I 2.000 1 1.000
* Runoff 1 0.120 I 2.000 I 1.000
D.O. I
mg/1 1
0.000
7.440
7.440
7.440
Segment 1 Reach 2
Waste 1 0.000 1 0.000 1 0.000 1 0.000
Tributary 1 0.080 1 2.000 1 1.000 I 7.440
* Runoff 1 0.000 1 2.000 1 1.000 1 7.440
Segment 1 Reach 3
Waste 1 0.000 1 0.000 1 0.000 1 0.000
Tributary 1 0.000 1 2.000 1 1.000 1 7.440
* Runoff 1 0.000 1 2.000 1 1.000 I 7.440
Segment 1 Reach 4
Waste 1 0.000 I 0.000 1 0.000 1 0.000
Tributary 1 1.100 I 2.000 I 1.000 1 7.440
* Runoff 1 0.000 1 2.000 1 1.000 1 7.440

�I Segi # I
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
I Seg # 1
Reach #
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
Reach #
1 Seg Mi
0.00
0.09
0.17
0.26
0.34
0.43
0.51
0.59
0.68
0.76
0.85
0.85
0.87
0.89
0.91
0.93
0.95
0.97
0.99
1.01
1.03
1.05
1.05
1.19
1.33
1.47
1.61
1.75
1.89
2.03
2.17
2.31
2.45
2.45
2.72
2.99
3.26
3.53
3.80
4.07
4.34
4.61
4.88
5.15
I Seg Mi
I D.O.
5.62
5.61
5.60
5.59
5.60
5.60
5.62
5.63
5.65
5.68
5.70
5.78
5.78
5.79
5.79
5.80
5.80
5.81
5.81
5.82
5.82
5.83
5.83
5.70
5.60
5.51
5.44
5.38
5.33
5.30
5.27
5.26
-5 25
6.09
6.09
6.10
6.13
6.17
6.22
6.27
6.33
6.40
6.46
6.53
I D.O.
I CBOD
12.50
12.25
12.01
11.78
11.55
11.32
11.11
10.89
10.68
10.48
10.28
9.90
9.87
9.84
9.80
9.77
9.74
9.70
9.67
9.64
9.61
9.57
9.57
9.35
9.14
8.93
8.73
8.53
8.34
8.15
7.96
7.78
�.: ,4.61.
5.46
5.22
5.00
4.79
4.58
4.38
4.20
4.02
3.84
3.68
3.52
I CBOD
1
SUMMER
QEFF=0.25 MGD, BOD5=30 MG/L
NH3-N=3.4 MG/L
NBOD I
4.49
4.37
4.25
4.13
4.02
3.91
3.80
3.70
3.60
3.50
3.41
3.30
3.28
3.26
3.25
3.23
3.21
3.20
3.18
3.16
3.14
3.13
3.13
3.01
2.90
2.79
2.69
2.59
2.49
2.40
2.31
2.23
2.14
1.71
1.59
1.47
1.37
1.28
1.19
1.10
1.03
0.95
0.89
0.82
I NBOD
1
Flow I
1.59
1.60
1.61
1.62
1.63
1.64
1.65
1.66
1.67
1.68
1.69
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.77
1.740
2.87
2.87
2.87
2.87
2.87
2.87
2.87
2.87
2.87
2.87
2.87
Flow I

)D cfr--- 4, s..Lf_ iii
IJZ1TOWN OF YANCEYVILLE ` -
0 ....._....:_1N(r)RI'UH.ATEI) /r4
Mr. Dale Overcash
NPDES Permit Group
Water Quality Section
Division of Environmental Management
Post Office Box 27687
Raleigh, North Carolina 27611
Subject: Town of Yanceyville
Draft Permit - NC 0040011
Increase in flow to 0.25 MGD
Dear Mr. Overcash:
2 2 1991
March 18, 1991
1991
vim
We are in receipt of a copy of the draft permit from the subject project and we
take this opportunity to comment on two (2) items in the draft permit as
follows:
1. NH3 as N Limits:
The draft permit contains discharge limitations for NH3 as N when flows
increase above 0.20 MGD. We have been monitoring NH as N in the past,
but we have previously not been assigned a specific discharge limitation.
It is evident from our data that the Town cannot attain compliance with the
proposed NH3 as N limit of 3.4 mg/1 during the summer months and that it
would be an economic hardship on the Town to attain compliance. Attached •
is a list of some effluent concentrations for NH3 as N for several months
over the last three years.
As noted from the attached information, it appears that the plant would be
in compliance with winter limits (21.8 mg/1); however, the summer limits
would constitute a major problem. It should be realized that our treatment
process consists principally of a stabilization lagoon, and as such we have
virtually no variable process controls that can impact lagoon performance.
Our plant was not designed to reduce ammonia to the 3.4 mg/1 level and it
would take additional equipment and processes to meet this limit.
Our engineer has indicated that the ammonia levels could be reduced by the
addition of methanol using the present treatment process, or that ammonia
levels could be attained with a properly designed and operated activated
sludge process. We are currently considering a major expansion at this
plant (another 0.20 MGD expansion) in which it was recommended that our
treatment process be changed to the activated sludge process. The results
of our study are not finalized and funding of such a proposal is a major
factor in a decision to proceed. We have no firm design for a methanol
addition system; however, we can assume that a chemical storage tank,
chemical pump equipment, a chemical reactor tank, and housing of such
equipment would be required for this purpose. A preliminary estimate for
this addition is approximately $125,000.00. More importantly, operation
costs will increase significantly because methanol addition in the 150 mg/1
200 E Church St. • P. 0. Box 727 • Yanceyville, N.C. 27379 • [phone]

Mr. Dale Overcash
epivision of Environmental Management
-Page 2
March 18, 1991
Subject: TOwn of Yanceyville
Draft Permit - NC 0040011
to 200 mg/1 range would be necessary to reduce the ammonia levels to meet
permit during summer months. Rates would need to be increased fran $2.50
per 1000 gallons to approximately $3.00 per 1000 gallons for this purpose.
Both the initial capital outlay and the increase in sewer charges would
create a financial burden on the Town and on its residents.
We respectfully request that the ammonia limits be dropped or that the
summer limits be raised to be the same as winter limits.
2. Receiving Stream Classification:
The draft permit states that our plant discharges into Country Line Creek,
a Class WS-III stream. It is our understanding from this designation that
this section of Country Line Creek is evidently classified for drinking
water supply. If this is true, we feel that this section of Country Line
Creek has been erroneously classified because the raw water intakes and
reservoirs are upstream from our discharge point. In other words, our
discharge does not drain into a public water supply and it appears that the
designated water shed should be drawn to old N.C. Hwy. 62.
We make this point realizing that a classification of this type probably
affects discharge limits for our plant and that the ammonia limit discussed
under Item 1 may not be required if this is taken into account.
In summary, it was our understanding from discussions with Division of
Environmental Management staff last year that the proposed permit amendment was
approvable without any change in effluent limitations. This 50,000 gallon per
day of additional wastewater flow is most important to the Town and we do not
believe that this amount of flow would create any detrimental environmental
impact on the receiving stream. If the ammonia limits issue cannot be
resolved, we request that you temporarily hold the issuance of the permit in
order for us to hold further discussions with DEM.
Your favorable response to our request would be most appreciated.
Sincerely,
'DOWN OF CEY\%IT,T,F,
4;11
Curtis E. Davis, Mayor
Attachment
cc: Alley, Williams, Carmen, & King, Inc.

e ATTACHMENT:
Subject: Town of Yanceyville
Draft Permit - NC 0040011
Increase in flow to 0.25 MGD
MONTH / YEAR
September, 1988
October, 1988
November, 1988
December, 1988
January, 1989
February, 1989
March, 1989
April, 1989
May, 1989
June, 1989
July, 1989
August, 1989
September, 1989
January, 1990
February, 1990
March, 1990
April, 1990
May, 1990
Mr. Dale OvercaCh
NPDES Permit Group
Water Quality Section
Div. of Environmental Management
EfrLUENT CONCENTRATION OF
AMNDNIA - NH3 AS N (MG/L)
11.34
13.35
13.81
13.26
12.40
13.71
5.82
20.48
16.04
16.96
16.47
12.80
13.99
13.36
10.57
3.76
11.96
10.46
17.36
8.04
9.71
9.14
6.91
9.55
2.52
11.56
11.36
6.86
12.70
12.76
11.74
11.30
11.09
11.31
11.87
14.24

• MEMO
Ock \
C'7
-111AR 4; 8- 1991
PRMITS cy L rkIcturva4.6,40/
Ar,p PLC /2113 /
(r-Lta zze,}44_
id4 Ac_741,-z)
it.Aq- 0141 A
Axed vo
From:
1,41,!I 2 7 PA
North Carolina Department..of Environment,
Health, and Natural Resources

TO:
t
T
S+ 5 1991
iECT ON
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N/D1=s
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North Carolina Department of Environment,
Health, and Natural Resourcesc9
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Printed on Recycled Paper
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NH3-N (mg/1 )
Potential effluent limit combinations:
a0D5
NH3.N .._
Cgoi7•O
tNL : S4
An =5
5
CfoP= 45
Ngoc7 = 2Z
7� = 5
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MEMO.
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Noon GS-dna Departmet of Natural
Resources &Community Development
DATE 1° (il 1 q 10
SUBJECT:
0„,,„i,„
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SUMMER
NBOD
MODEL RESULTS
Discharger : YANCEVILLE WWTP
Receiving Stream : COUNTRY LINE CREEK
The End D.O. is 5.39 mg/l.
The End CBOD is 1.00 mg/l.
The End NBOD is 7.25 mg/1.
Segment
Reach
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
4.93 1.20 1
0.00 63.00 5.00 0.25000

• M
*** MODEL SUMMARY DATA ***
Discharger
Receiving Stream :
Summer 7Q10
Design Temperature:
YANCEVILLE WWTP
COUNTRY LINE CREEK
1.2
27.0
Subbasin : 030402
Stream Class: WS-III
Winter 7Q10 : 4.9
'LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd I Kd I Ka I Ka I KN I
I mile I ft/mil fps 1 ft 'design' @201/2 'design' @201/2 'design'
Segment 1
Reach 1
1 1 1 1 1 1 1 1 1 !
I 2.451 9.091 0.100 1 1.04 10.30 10.22 11.91 I 1.641 0.51 I
1 1 1 1 1 I 1 1 1 I
I Flow
I cfs
Segment 1 Reach 1
Waste I 0.388
Headwaters' 1.200
Tributary I 0.000
* Runoff I 0.034
CBOD 1 NBOD 1 D.O. I
mg/1 I mg/1 I mg/1 I
0.000 1 63.000 I 5.000
2.000 1 1.000 I 7.170
2.000 I 1.000 I 7.170
2.000 I .1.000 I 7.170
* Runoff flow is in cfs/mile

SUMMER
_"- ' - CBOD
•
MODEL RESULTS
'Discharger : YANCEVILLE WWTP
Receiving Stream :C,OUNTRY LINE CREEK
The End D.O. is 5.30 mg/l.
The End CBOD is 14.37 mg/1.
The End NBOD is 0.37 mg/l.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 5.08 1.40 1
Reach 1 90.00 0.00 5.00 0.25000

s
*** MODEL SUMMARY DATA ***
Discharger
Receiving Stream :
Summer 7Q10
Design Temperature:
YANCEVILLE WWTP
COUNTRY LINE CREEK
1.2
27.0
Subbasin : 030402
Stream Class: WS-III
Winter 7Q10 : 4.9
(LENGTH( SLOPE( VELOCITY 1 DEPTHI Kd 1 Kd 1 Ka 1 Ka 1 KN 1
1 mile 1 ft/mil fps 1 ft 'design' @2034 'design' @20% (design(
Segment 1
Reach 1
1 1 1
1 2.451 9.091
1 1 1
I 1 1 1 1 1 1
0.100 1 1.04 1 0.30 1 0.22 1 1.91 1 1.641 0.51 1
I I 1 1 I I 1
1 Flow I CBOD
1 cfs I mg/1
Segment 1 Reach 1
Waste 1 0.388 1 90.000
Headwaters) 1.200 I 2.000
Tributary 1 0.000 1 2.000
* Runoff 1 0.034 I 2.000
* Runoff flow is in cfs/mile
NBOD 1 D.O. 1
mg/1 I mg/1 I
0.000 1 5.000
1.000 1 7.170
1.000 1 7.170
1.000 1 7.170

Facility
(Summer/
i
Wastefiow - (MGD) O ,T5-
nter (circle one)
•
_u
•
r
1
f
•
�J
1
10-
A
NH3-N (mg/1)
Potential effluent limit combinations:
(6,,,,-
B005 NH - tri,1)- - d �t� '
2-6 cf.L1,.

MODEL RESULTS
Discharger : YANCEVILLE WWTP
Receiving Stream • COUNTRY LINE CREEK
SUMMER
26/6_
0.25 PRELIMINARY
The End D.O. is 5.65 mg/1.
The End CBOD is 6.79 mg/1.
The End NBOD is 3.32 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 5.34 1.30 1
Reach 1 39.00 27.00 5.00 0.25000

* * * MODEL SUMMARY DATA * * *
Discharger
Receiving Stream :
'Summer 7Q10
Design Temperature:
YANCEVILLE WWTP
COUNTRY LINE CREEK
1.2
27.0
Subbasin : 030402
Stream Class: WS-III
Winter 7Q10 : 4.9
'LENGTH' SLOPEI VELOCITY 1 DEPTHI Kd 1 Kd 1 Ka 1 Ka 1 KN 1
1 mile 1 ft/mil fps 1 ft Idesignl @204 !design! @204 'design!
Segment 1
Reach 1
1 1 1
1 2.451 9.091
I 1 1
I 1 I 1 1 I 1
0.100 11.04 1 0.30 1 0.22 1 1.91 1 1.641 0.51 1
I 1 I 1 I 1
1 Flow I CBOD 1 NBOD
1 cfs 1 mg/1 1 mg/1
Segment 1 Reach 1
Waste 1 0.388 1 39.000 1 27.000
Headwaters) 1.200 I 2.000 1 1.000
Tributary I 0.000 I 2.000 I 1.000
* Runoff 1 0.034 I 2.000 1 1.000
* Runoff flow is in cfs/mile
D.O. I
mg/1 1
5.000
7.170
7.170
7.170

.
I 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
I Seg #
I 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
I Reach
# I Seg Mi
0.00
0.10
Q.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
# I Seg Mi
I D.O.
6.64
6.38
6.16
5.98
5.83
5.70
5.60
5.52
5.45
5.41
5.37
5.35
5.34
5.34
5.35
5.36
5.38
5.40
5.43
5.46
5.50
5.53
5.57
5.61
5.65
I D.O.
I CBOD
11.03
10.81
10.59
10.38
10.17
9.97
9.76
9.57
9.38
9.19
9.00
8.82
8.65
8.47
8.30
8.14
7.98
7.82
7.66
7.51
7.36
7.21
7.07
6.93
6.79
I CBOD
SUMMER
26/6 _
0.25 PRELIMINARY
I NBOD I Flow I
7.35
7.11
6.87
6.65
6.43
6.22
6.02
5.82
5.63
5.45
5.27
5.10
4.93
4.77
4.62
4.47
4.32
4.18
4.05
3.91
3.79
3.67
3.55
3.43
3.32
I NBOD
1.59
1.59
1.59
1.60
1.60
1.60
1.61
1.61
1.61
1.62
1.62
1.62
1.63
1.63
1.64
1.64
1.64
1.65
1.65
1.65
1.66
1.66
1.66
1.67
1.67
I Flow I

•
•
MODEL RESULTS
.Discharger : YANCEVILLE WWTP
Receiving Stream : COUNTRY LINE CREEK
SUMMER
20/8
0.25 PRELIMINARY
The End D.O. is 5.57 mg/l.
The End CBOD is 5.45 mg/1.
The End NBOD is 4.30 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 5.22 1.30 1
Reach 1 30.00 36.00 5.00 0.25000

*** MODEL SUMMARY DATA ***
..
Discharger : YANCEVILLE WWTP Subbasin : 030402
Receiving Stream : COUNTRY LINE CREEK Stream Class: WS-III
Summer 7Q10 : 1.2 Winter 7Q10 : 4.9
Design Temperature: 27.0
'LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd I Kd I Ka I Ka I KN I
I mile I ft/mil fps I ft 'design' @20% 'design' @204 'design'
I I I I I I I I I I
Segment 1 I 2.451 9.091 0.100 1 1.04 10.30 1 0.22 11.91 I 1.641 0.51 I
Reach 1 I I I .I I I I I I I
I Flow 1 CBOD I NBOD I D.O. I
I cfs 1 mg/1 1 mg/l 1 mg/1 I
Segment 1 Reach 1
Waste I 0.388 130.000 1 36.000 1 5.000
Headwaters' 1.200 I 2.000 1 1.000 1 7.170
Tributary I 0.000 I 2.000 I 1.000 I 7.170
* Runoff I 0.034 1 2.000 I 1.000 I 7.170
* Runoff flow is in cfs/mile

'Discharger
Receiving Stream
.
MODEL RESULTS
: YANCEVILLE WWTP
:C,OUNTRY LINE CREEK
SUMMER
10/14
0.25 PRELIMINARY
The End D.O. is 5.00
The End CBOD is. 3.23
The End NBOD is 7.25
mg/l.
mg/1.
mg/1.
Segment 1
Reach 1
DO Min
WLA
CBOD
(mg/1) Milepoint Reach # (mg/1)
4.55
1.30 1
15.00
WLA
NBOD
(mg/1)
WLA
DO Waste Flow
(mg/1) (mgd)
63.00 5.00 0.25000

•
*** MODEL SUMMARY DATA ***
Discharger
Receiving Stream :
Summer 7Q10
Design Temperature:
.
YANCEVILLE WWTP
COUNTRY LINE CREEK
1.2
27.0
Subbasin : 030402
Stream Class: WS-III
Winter 7Q10 : 4.9
[LENGTH[ SLOPE[ VELOCITY 1 DEPTH[ Kd 1 Kd 1 Ka 1 Ka 1 KN 1
I mile 1 ft/mil fps I ft [design' @20% [design, @204 [design)
Segment 1
Reach 1
1 1 1
1 2.451 9.091
1 1 1
1 1 1 1 1 1 I
0.100 1 1.04 1 0.30 1 0.22 1 1.91 1 1.641 0.51 I
1 1 1 1 1 1 I
1 Flow 1 CBOD 1 NBOD
1 cfs 1 mg/1 1 mg/1
Segment 1 Reach 1
Waste I 0.388 115.000 1 63.000
Headwaters) 1.200 1 2.000 1 1.000
Tributary 1 0.000 I 2.000 I 1.000
* Runoff 1 0.034 1 2.000 1 1.000
* Runoff flow is in cfs/mile
D.O. 1
mg/1 I
5.000
7.170
7.170
7.170

•
400
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Main stem x
StoP e Caicu afiio n s
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