NC0066362_Wasteload Allocation_19910529

NPDES DOCUMENT SCANNING COVER SHEET
NC0066362
Benson Apartments WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload A11ocaio°"
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
May 29, 1991
Z`his document is printed oa reuase paper - ignore any
content on the re'erase aside

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0066362
PERMI IIEB NAME: Mr. Nathan Benson / Benson Apartments
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 0.0080 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
RECEIVING STREAM: unnamed tributary to Mud Creek
Class: C
Sub -Basin: 04-03-02
Reference USGS Quad: F 9 SW (please attach)
County: Henderson
Regional Office: Asheville Regional Office
Previous Exp. Date: 10/31/91 Treatment Plant Class: 0
Classification changes within three miles:
Requested by: Angela Y. Griffin Date: 4/2/9/91/
Prepared by: ,''', r�,, Date: .// / 11
Reviewed by: N�i(I .0. Sce Date: 5`/28�1191
4i 3 C1(0. S) 1 i
Modeler
Date Rec.
#
3m-gi
4( 3okk
(0zZ0
'-1(114W 2 l 1
Drainage Area (mi ) 0. a l Avg. Streamflow (cfs): 13- 3 F
7Q10 (cfs) CLol Winter 7Q10 (cfs) U • 1 O 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
3 v
3 v
NH 3 -N (mg/1)
S `{ (4-7)'
/ ` . SJ
(AT 1
D.O. (mg/1)
-
—
TSS (mg/1)
3 0
3 0
F. Col. (/100 ml)
200
a.00
pH (SU)
& _ c/
6,
eloderiip:)
Comments:
wQ

-1-
Request No. 6220
Facility Name
NPDES No.
Type of Waste
Facility Status
Permit Status
Receiving Stream
FACT SHEET FOR WASTELOAD ALLOCATIONS
:Benson Apartments
:NC0066362
:Domestic
:Existing
:Renewal
:UT to Mud
Stream Classification:C
Subbasin
County
Regional Office
Requestor
Date of Request
Topo Quad
Creek
:04-03-02
:Henderson
:Asheville
:Angela Griffin
:4/29/91
:F9SW
Wasteload Allocation Summary
RECEIVED
Water Quality Section
MAY 1 7 1991
Asheville Regional Offe
Asheville, North Carolina
Stream Characteristics:
USGS # 03.4467.8310 Date 1986
Drainage Area: 0.21 sq.mi.
Summer 7Q10: 0.07 cfs
Winter 7Q10: 0.10 cfs
Average Flow: 0.38 cfs
30Q2: cfs
Facility meets existing limits. Chlorine levels are too high. Chlorine
should be 28 ug/1 to avoid toxicity. Allowable ammonia limits are 5.4 mg/1
in summer and 14.5 mg/1 in winter. Facility may have a choice between
these limits or quarterly toxicity testing at 15%. Please respond with
facility's decision, us,2 hats- 14 •-rS t docL•i.:�
WASTELOAD SENT TO EPA?(Major) N (Y or N) l
(if yes, then attach schematic, toxics spreadsheet, copy of model, or
if not modeled, then old assumptions that were made, and description
of how fits into basinwide plan)
Recommended by:
Reviewed by
Instream Assess ent:
Regional S p i or:
Permits & Eng neering:
s -i1
(livtaz:?(.4
it h
RETURN TO TECHNICAL SERVICES BY:
J1JN 11 1991
Date:
Date: S
Date :5
Date: 57f,4f

-2- Request No. 6220
Existing Limits
CONVENTIONAL PARAMETERS
Monthly Average Daily Maximum
Summer/Winter
Wasteflow (MGD): 0.008
GODS (mg/1) : 30
NH3-N (mg/1): monitor
TSS (mg/1) : 30
Fecal Coliform (#/100 ml) : 1000
pH (SU) :
Chlorine (mg/1): monitor
Recommended Limits
Summer/Winter
6-9
Wasteflow (MGD) : 0.008
BOD5 (mg/1) : 30
NH3N (mg/1): monitor or 5.4/14.5 (see above)
TSS (mg/1) : 30
Fecal Coliform (/100 ml) : 200
pH (SU) : 6-9
Chlorine (mg/1) : monitor
Limits Changes Due to: Parameter(s) Affected:
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Ammonia Toxicity
TOXICS
NH3-N
Toxicty Limit: Chronic, quarterly at 15% (see above)
Monitoring Schedule:
FEB, MAY, AUG, NOV
MISCELLANEOUS INFORMATION
Miscellaneous information pertinent to the renewal or new permit for this
discharge. Include relationship to the Basinwide management plan.
Time of Travel work will be done in the near future on Mud Creek. A model
will be developed for the Mud Creek watershed which may lead to a
reallocation of limits under the French Broad basin plan.
INSTREAM MONITORING REQUIRMENTS: none

'ritt(Liry i s C1lblCe V-izt-Y46e.k.)
'x c'7v 75 7A) 6 .
10/89
Facility Name 1G'?5.6n. Apa.filettitue Permit (-004, 4. 3 co
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 t which there may be no observable inhibition of reproduction or
significant mortality is 1. S % (defined as treatment two in the North Carolina procedure
document). The permit holder shall perfonn quarterly monitoring using this procedure to establish
compliance.4rith the permit condition. The. first test will beperformed after .thirty days from
issuance of This permitduring the months of ce6 AO6,1 D a tJ . Effluent
sampling for this testing shall be performed at the NPDES permitted final effluent discharge below
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.:. 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 single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until srich time that a single test is passed. Upon passing, this
monthly test requirement will revert to qu4rterly 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(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
••
7Q10 b. 0 7 cfs
Permited Flow 0.00 g MGD
IWC% 15--
Basin & Sub basin 04-
Recommended• by:
Receiving Stream t.rr 4im.Dd &&k
County FtPhat(Saw._ Date_51/6///
**Chronic Toxicity (Ceriodaphnia) P/Fat 15-70,_ Rif 1'1?AY,41,00Sec Piu-t „Pr -Condition u_

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