NC0064246_Wasteload Allocation_19910109

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0064246
PERMITI'EE NAME: Mr. Jerry G. Pace / Pace Mobile Home Park
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 0.015 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow): n/a %
C MnI
uti
RECEIVING STREAM: an unnamed tributary to Bnffal�
Class: C-NSW
Sub -Basin: -03-04-02 03-04 -olo
Reference USGS Quad: E25NW (please attach)
County: Johnston
Regional Office: Raleigh Regional Office
Previous Exp. Date: 11/30/90 Treatment Plant Class: 1
Classification changes within three miles:
No change within three miles.
9/z//9a
Requested by: Mack Wiggins Date: 13mo
Prepared by: Date:
Reviewed by: l Date:
3,a (.a3.t)
ModeleT
I Date Rec.
#
sc c-4
9 a490
S
Drainage Area (miz ) .170 Avg. Streamflow (cfs): • a %
7Q10 (cfs) & Winter 7Q10 (cfs) O 30Q2 (cfs) O
Toxicity Limits: IWC % Acute/Chronic
Instream Monit -ing:
G
Parameters DO . 'Fen2,g Cc nc4 sec a ( Ca/,yam
Upstream ✓ Location I{, eGH
Downstream Location SR 1 'N 7
irr ; Az�c 3 Y;. ,Rs
Effluent
Characteristics
or
BODS (m )
q
—
!U
NH3-N (mg/1)
(oo)
D.O. (mg/1)
(�
TSS (mg/1)
3G
3U
30
F. Col. (/100ml)
app
bD
pD
PH (SU)
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6
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ry
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rridA ves
Comments: 5u ..ai(4Ake)•
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Request No.: 5867
------------------- WASTELOAD ALLOCATION APPROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving 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)
Pace Mobile Home Park
NCO064246
Domestic
Existing/Renewal
UT to Buffaloe Creek
C-NSW "�
-3949 o364Ob
Johnston
Raleigh
Mack Wiggins
9/21/90
E25NW
�FcF,
I
A
"OG F
2
Drainage area: FG67y�,0 sq mi
Summer 7Q10: 0.0 cfs
Winter 7Q10: 0.O /�°t.(fs
Average flow: 0.21 cfs
30Q2: 0.00 cfs
OMMENDED EFFLUENT LIMITS -----------------
EXISTING PROPOSED
0.015 0.015
6 6 (D O)
30 30
1000 200
6-9 6-9
monitor monitor
Toxicity Testing Req.: none
---------------------------- MONITORING ------------------------------------
PARAMETERS: DO, Temp, Cond, Fecal Coliform
Upstream (Y/N): Y Location:100 feet upstream
Downstream (Y/N): Y Location:PR 1747
L.O_ CUYY2h IY)5%l QWt — COOMMECNTS - --- I
--V--hQv
Facility has a one violations each of BOD5 (14.5) and Fecal Coli. (20,000)
in 9/89. ZERO FLOW- Recommend removal. Facility must submit an engineering
report evaluating alternatives to discharge within 12 months. If there
are no feasible alternatives, after 3 years the limits will change to BOD5
= 5(10) and NH3-N = l(1.8) for summer (winter). The facility will receive a
letter addressing chlorine toxicity. Dechlorination required after 3 years.
Recommended by:
Reviewed by
Instream Assessment:
V1LU" Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SUPPORT BY: DEC 2 6 199U
Date: / c?0 �1d
Date:
! G
Date:
Date:
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INSTREAM SELF -MONITORING DATA
MONTHLY AVERAGES
Discharger: Xy, /%rr�LP�clL Permit No.: NC00.O/C/91/61
Receiving Stream: fI /3, 1,p e,,p ,& Sub -basin: 0 3 -o
Upstream Location: 'f" Downstream Location
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. BOD5 COND TEMP D.O. BOD5
COND

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 Director
November 29, 1990
Jerry Pace
Pace Mobile Home Park
2720 Buffalo Road
Clayton, NC 27520
Subject: Chlorine Toxicity
NDPES Permit No. NCO064246
Johnston County
Dear Mr. Pace:
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 nexquiennial review of
water quality standards. r
In revising its water quality standards in 1989, North Carolina developed an action level for
chlorine of 17 ug/1(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 of
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 may be toxic to aquatic
life in the receiving stream under low flow conditions, i.e., the amount of chlorine discharged causes
an exceedance 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 of 100 %, an acceptable level of chlorine in your effluent is 17 ug/l or 0.017
mg/l. If this level is not feasible, you should consider dechlorination or alternate methods of
disinfection for your facility to ensure that both chlorine and bacterial limits are met. In addition, if
your facility plans to undertake any phase of construction, dechlorination or alternate disinfection
should be included. 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 Affirmative Action Employer

i
-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 Tim Donnelly of the Division's Regional Office at [phone], if you
have any questions or comments regarding this issue. -
Sincerely,
Steve Tedder
Water Quality Section Chief
SWT/eaj .
cc: Raleigh Regional Office
Central Files
0
r
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action $mployer