NC0065684_Wasteload Allocation_19901113

3 W t,As A-n-ACt+m
® NPDES WASTE LOAD ALLOCATION
PERMIT NO.: N CO065684
PERMITI'EE NAME: Mid South Water Systems, Inc. / Country W000
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Minor `I
Design Capacity: 0,100 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments: £xt5T1JJa INgsTL�W O.l N4tr�
oo�
5rK u•sE tJ So•e< Gz r«E !x fteJ'rl�
EN^AID,;ePGD SPKrfS.
RECEIVING STREAM: Goose Creek
Class: C
Sub -Basin:
03-07-12
Reference USGS Quad: G 16NE (please attach)
County: Union
Regional Office: Mooresville Regional Office
Previous Exp. Date: 6/30/91 Treatment Plant Class: � _
Classification changes within three miles: �—
No change within three miles.
Requested by: _ Mack Wiggins Date: 10/8/90
Prepared by: / Date: 11� v
Reviewed by: Date: 50
�apu .il.7S�7/.SS�
WQleL L—
Modeler
I Date Rec.
#
L� 51
/o a
ISB 9
Drainage Area (mi ) 7. q7 Avg. Streamflow (cfs): ?. 5-
7Q10 (cfs) O. ( Winter 7Q10 (cfs) O• � 30Q2 (cfs) b• %
Toxicity Limits: IWC (9 1 % Acute .hmm
Instream Monitoring:
Parameters 000 YhA4, Con d.E decal r6IZisYr^
Upstream Location too AzSd",e-
Downstream J Location b.y ,,.nuns 6d-..a dA�20._
U.
Effluent
Characteristics
Summer
Winter
BOD5 (m )
3o
3o
NH3-N (mg/1)
�.S
5-`I
D.O. (mg/1)
S
S
TSS (mg/1)
3 p
3 O
F. Col. (/100 nil)
pH (SU)
_ c(
�.Ltlorine
v>1on:',-Or
4N6n:'R.^
Comments: *1=AaLtTy "As Choice 3L:nrac-,G 1 TOXlctry
TES'ni'aG AK'D PcrnmoN A. t.Im rrs .
•&I- Loose Swd:

d
PERMIT NO.: NCO065684
I NALA MO 11 I OJ `►(AXI N
NPDES WASTE LOAD ALLOCATION
Mid South Water Systems, Inc.
Facility Status: Existing
Permit Status: Renewal
Major _
Pipe No.
PI
Minor -V
Design Capacity: '63 MGD
Domestic (% of Flow): 100 %
Indusnial (% of Flow):
Comments: � ho se -Z — l)- 2
RECEIVING STREAM: Goose Creek
Class: C
Sub-B isin: 03-07-12
Reference USGS Ouad: G16NE
Coun is Union
(please attach)
Regioi tal Office: _ Mooresville Regional Office
Previous Exp. Date: 6/30/91 Treatment Plant Class:
Classi Iiication changes within three miles:
No change within three miles.
Requested by: Mack Wiggins Date: 10/8N0
Prepared by: Date: I! 7 9a
Reviewed by: PAIJ. M Date: I
l< ! 3 S
WQIc��
Modeler
Date Rec.
#
e441S,
/a o
589 8
rf F- 2 1
Drainage Area (mi ) `7 y> Avg. Streamflow (cfs): 9 s
7Q10 (cfs) D. / Winter 7Q10 (cfs) p. ti 30Q2 (cfs) O, %
Toxicity Limits: IWC _; % Acute tore
Instream Monitoring:
V
Parameters 'bo,
Upstream ✓ Location /00
Downstream ./ Location 0. V o;LZy `low"s-ova
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
NH3-N (mg/1)
3 kT
3 8 t
D.O. (mg/1)
S
TSS (mg/1)
d
3�
F. Col. (/100 ml)
.200
o2do
pH (SU)
c4hforine !1�
wren: io✓
mo.u:v✓
Comments: * T*&l,/ Y WAS P!koiC6: 8E7d1E9W AAWA114
2.' MI7S of 7�/ lS :*c waN iaX/Ctry 7ES77AI6
!LZ f mMdAlt* Ctls+l7S 6F 1.31XoF ll .
• C.! "

l�J
NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO065684
PERMITTEE NAME: Mid South Water Systems, Inc. / Country W0005
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Design Capacity:
Minor
0.700 MGD
Domestic (% of Flow):
Industrial (% of Flow):
11 '.
Comments: f- r)al e."ns;s,, 3,-2 MGQ .
RECEIVING STREAM: Goose Creek
Class: C
Sub -Basin:
03-07-12
Reference USGS Quad: G16NE (please attach)
County: Union
Regional Office: Mooresville Regional Office
Previous Exp. Date: 6/30/91 Treatment Plant Class:
Classification changes within three miles:
No change within three miles.
Requested by: Mack Wiggins
Prepared by:
Reviewed by: Pall Aa6_z�
�1 ofl� l°I.°ls �37.8�
WkW,L_ Wa
Date: 10/8/90
Date: 10 0
Date: 1 -m
Modeler
Date Rec.
#
5
/o a
se 9z e
Drainage Area (mil ) 5- T? Avg. Streamflow (cfs): 5j. S`
7Q10 (cfs) 0.1 Winter 7Q10 (cfs) O. `( 30Q2 (cfs) O . %
Toxicity Limits: IWC -- % Acute/Chronic
Instream Monitoring:
Parameters Dc�,
Upstream ✓ Location /eo Cee7l
Downstream ✓ Location O•V 1--t:7as
Effluent
Characteristics
Summer
Winter
BOD5 (m )
U
/
NH3-N (mg/1)
j
D.O. (mg/1)
TSS (mg/1)
30
30
F. Col. (/100 ml)
100
a00
pH (SU)
9
_�
L,klb6#%e C h
O. O1 Fs
O
gyt�115n ne.'}i
pr
Comments:

1. V. =[Fr. OP NATMAC
RENWRCFS AND
007AD"1NFY .: .VEIMPMENT
OCT 3 � IM
Request No.: 5892
KI WASTELOADWR : E eTAt SAL FORM
Facility Name:
�( NPDES No.:
IX\v e of Waste:
pEE� Status:
p���sM G�� ��IE QE�X'" Aeceiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Wasteflow (mgd):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal coliform (#/100ml):
pH (su):
Chlorine (mg/1):
Country Woods Subdivision
NCO065684
Domestic
Existing/Renewal
Goose Creek
c
30712
Union
Mooresville7#�--
Mack Wiggins
10/8/90
G16NE
(A,61C)
-----------------
Drainage are :
Summer 7Q1 :
Winter 7Q10:
Average flow:
30Q2:
� ,E'FLUENT LIMITS
N� 1
summer winter
0.100 0.100
30 30
41t 1.5 AT vi
5 5
30 30
200 200
6-9 6-9
monitor monito
winter
0.200
0.2
10
18
Y' 1.3
4T 3.9
5
5
30
30
200
200
6-9
6-9
onitor
monitor
nCi1 VeIL.
ii�
9.470 sq mi �.
0.10 cfs
0.40 cfs
9.50 cfs
0.70 cfs
------- ------
C
summer winter
0.700 0.700
10 18
1.1 AT 2.L(
5 5
30 30
200 200
6-9 6-9
0.018 0.018
Toxicity Testing Req.: Chronic quarterly *
(61 %) (76 %)
---------------------------- MONITORING ---------------------
PARAMETERS: DO, TEMP, COND, FECAL COLIFORM AF
Upstream (Y/N): Y Location:100 feet be3vw discharge
Downstream (Y/N): Y Location:0.4 miles below discharge
COMMENTS
Facility currently at 0.1 MGD. No problems. Received ATC for 0.21 MGD
in July 1990. No ATC for 0.7 MGD as yet.
* At 0.1 and 0.2 MGD, the facility has a choice between existing ammonia
limits with toxicity testing OR above ammonia limits. Facility will
receive letter addressing chlorine toxicity. Dechlorination will be
required at 0.7 MGD. See next page for existing limits.
------------------------------------------------------------------------
Recommended by: O. H
Date:
3 a
Reviewed by
/;
Instream Assessment: (i2nnL�L9N'Yl_
Date:
CO 7
Regional Supervisor: f
Date:
a zi jq0
Permits & Engineering:
Date:
RETURN TO TECHNICAL SUPPORT BY:
NOV 24,1990

: CONTINUED... Request No.: 5892
------------------- WASTELOAD ALLOCATION APPROVAL FORM -------------------
Facility Name:
Country Woods Subdivision
NPDES No.:
NCO065684
Type of Waste:
Domestic
Status:
Existing/Renewal
Receiving Stream:
Goose Creek
Classification:
c
Subbasin:
30712
Drainage
area:
9.470
sq mi
County:
Union
Summer
7Q10:
0.10
cfs
Regional Office:
Mooresville
Winter
7Q10:
0.40
cfs
Requestor:
Mack Wiggins
Average
flow:
9.50
cfs
Date of Request:
10/8/90
30Q2:
0.70
cfs
Quad:
G16NE
-------------------- EXISTING EFFLUENT LIMITS
--------------------------
Wasteflow (mgd) : 0.100
BOD5 (mg/1) : 30
NH3N (mg/1): monitor
DO (mg/1): 5
TSS (mg/1) : 30
Fecal coliform (#/100ml) : 1000
pH (su) : 6-9
Chlorine (mg/1): monitor
Toxicity Testing Req.: none
summer winter
0.200
0.2
10
18
7
15
5
5
30
30
1000
1000
6-9
6-9
monitor
monitor
summer
winter
0.700
0.700
10
18
7
15
5
5
30
30
1000
1000
6-9
6-9
,monitormonitor

fLtu 4Uf
�ii7t� vws C�tOiGt be -t N/D QWtt►tUtia a l:
� ovWW laid 4wu'FS of 1/ (V "t l
10/89 WMC-R SYS Vks
Mid Sau-CH Facility Na-me '(paniyti (A)0Qr15 EAS* (- 1 m6p) Permit it AJC0(jLS_ �o8y_
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 C2-L% (defined as treatment two in the North Carolina procedure
document).:Me permit holder shall performquarrerly 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 JA9Og JuL, ooY - Effluent
sampling for this testing shall be performed atthe NPDES permitted final effluent discharge below
all treatment processes.
All toxicity testing results required as part of this pemrit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT I (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 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 environmental controls, shall constitute an invalid test
and will require immediate retesting(widmin 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
7Q10 • t cfs
Permited Flow - 1 MGD
IWC% Ce 1
Basin & Sub -basin b 3 -o-2- GL
Receiving Stream Geneae C-_rtek
County ilnion
Recommended by:
**Chronic Toxicity (Ceriodaphnia) P/F at� Y %,JAN, A^JUC,Oo7 See Part 3 , Condition � -

-71/ !
or
10/89 Mhid Sa(-rai S?576MS
Facility Nahne 00.,-6 Woode _V ro) 1'c; :.:: A1400 65-Z,
CHRONICTOX1Cl-rY "TESTING RLQUtRE\1LNl" (C?I:"17.L1 )
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 '76 % (defined as treatment two in the North Carolina procedure
document)..The permit holder shall perform ariarierly monitoring using this procedure to establish
compliance with the permit condition. The. first test will be performed after thirty days from
issuance of [his permit during the months ofJ N . Effluent
sampling for this testing sh2ll be performed at the NPDE 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 performed, using the parameter
code TGP3B delidonally; DEM Form AT I (original) is to be sent to the following address:
y ti 3-�"M
.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 supposing 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, dais
monthly test requirement will revert to quarterly in die 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 die 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 die cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute all 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 De l cfs
Permitted Flow b. a MGD
IWC% 'IS• (o
Basin & Sub -basin D 3 -0 7-/-.
Receiving Stream Goitre Creavk
County
Recommended by:
"Chronic Toxicity (Ceriodaphnia) P/F at n%,J"R,1ui,._oeX, See Part —3., Condition i; -

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I=
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary October 30, 1990 Director
Richard L Durham
Country Woods Subdivision
P.O. Box 127
Sherrills Ford, NC 28673
Subject: Chlorine Toxicity
NDPES Permit No. NCO065684
Union County
Dear Mr. Durham:
Chlorine, a widely used wastewater disinfectant for the treatment of coliform organisms, often
remains instream in residual amounts that may prove to be toxic under critical low stream flow
conditions. In the last decade, EPA assessed the potential adverse effects of chlorine to the aquatic
environment and has taken steps to reduce the impacts through the development of federal criteria.
In 1986, EPA recommended that all states have a chlorine standard by their next triennial review of
water quality standards.
In revising its water quality standards in 1989, North Carolina developed an action level for
chlorine of 17 ug/l (freshwater classes only). In addition, the fecal coliform limit was reduced from
1000 colonies/100 ml to 200 colonies/100 ml. Under a new DEM procedure, dechlorination and
chlorine limits are now recommended for all new or expanding dischargers proposing the use
chlorine for effluent disinfection. The Division is reviewing chlorine levels from all existing
dischargers as part of their NPDES permit renewal process.
Our records indicate that chlorine from your facility's effluent discharge is considered toxic to the
receiving stream under low flow conditions, i.e., the amount of chlorine discharged causes a
violation of the instream action level for chlorine (17 ug/1) under 7Q10 conditions (the lowest average
daily flow for seven (7) consecutive days during a ten (10) year period). Action should be taken to
reduce the effluent concentration of chlorine to an acceptable level. Based on your instream waste
concentration (IWC) at 0.1 MGD of 61 %, an acceptable level of chlorine in your effluent is 28 ug/l
or 0.028 mg/l. At 0.2 MGD your IWC will be 76% and the acceptable level of chlorine is 22 ug/1 or
0.022 mg/l. At 0.7 MGD your IWC will be 92% and the acceptable level of chlorine is 18 ug/l or
0.018 mg/l. If these levels are not feasible, you should consider dechlorination or alternate methods
of disinfection for your facility to ensure that both chlorine and bacterial limits are met. However,
please note that an authorization to construct must be obtained from this Division prior to any
alteration to your treatment plant.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affmnative Action Employer

-2-
The Division is currently reviewing its water quality regulations pertaining to chlorine. In the
future, effluent limits and/or dechlorination may be required of existing facilities with chlorine
problems. If the chlorine levels in your facility's effluent remain unchanged, a chlorine limit or
whole effluent toxicity requirement may be added to your permit limitations.
Please feel free to call Rex Gleason of the Division's Regional Office at ( 704) 663-1699, if you
have any questions or comments regarding this issue.
Since ly,
C; /Ir -
Steve Tedder
Water Quality Section Chief
SWT/eaj
cc: Mooresville Regional Office
Central Files
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

INSTREAM SELF -MONITORING DATA
MONTHLY AVERAGES
Discharger: M c�-So, Lo.5. lenLwr 21 We645 ee-5t Permit No.: NC00 4 S
Receiving Stream: (1.0 k Sub -basin: 0 3-07-/,;L
Upstream Location:160 Downstream Location y ,u:j&;
DATE
DEC-90
NOV- 90
OCT-90
SEP-90
AUG-90
JUL-90
JUN-90
MAY-90
APR-90
MAR- 90
FEB-90
JAN-90
DEC-89
NOV- 89
OCT-89
SEP-89
AUG-89
JUL-89
JUN-89
MAY-89
APR-89
MAR- 89
FEB-89
JAN-89
DEC-88
NOV- 88
OCT-88
SEP-88
AUG-88
JUL-88
JUN-88
MAY-88
APR-88
MAR- 88
FEB-88
JAN-88
DEC-87
NOV- 87
OCT-87
SEP-87
AUG-87
JUL-87
JUN-87
MAY-87
APR-87
MAR- 87
FEB-87
JAN-87
Upstream Downstream
TEMP D.O. WDT3 COND TEMP D.O. _B9&5" COND
F!rCAt �c
i• z (7) Iry A 3 , s 7.1 )
— ( 7.1 dmo /ill �� Ro°° ISC�
3 4 ) (� L-u-v)
Z G t) iY 1Z
!C 'a) 6
ao.s 2(0