NC0020052_Wasteload Allocation_19910219

NPDES DOCUMENT SCANNINO COVER SHEET
NC0020052
McAdenville WWTP
NPDES Permit:
Document Type:
Permit Issuance
\
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Compliance
Instream Assessment (67B)
Environmental
Assessment (EA)
Permit
History
Document Date:
February 19, 1991
This document is printed on rewae paper - ignore any
content on the reYerise aside

NPDES WAS lb LOAD ALLOCATION
PERMIT NO.: NC0020052
PERMITTEE NAME: Town of McAdenville / McAdenville WWTP
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 0.130 MGD
Domestic (% of Flow): -3-%-- /oo
Industrial (% of Flow): .J.7-%
Comments:
Industrial flow from Stowe Mills.
RECEIVING STREAM: South Fork Catawba River
Class: WS-III
Sub -Basin: 03-08-36
Reference USGS Quad: F14SE, Mount Holly
(please attach)
County: Gaston
Regional Office: Mooresville Regional Office
Previous Exp. Date: 5/31/91 Treatment Plant Class: II
Classification changes within three miles:
No change within 3 miles.
Requested by:
Prepared by:
Reviewed b
Jeffrey A. Curka Date: 1/2/91
Date: 2//2
Date:
Modeler
Date Rec.
#
z-KA_,3
(1z-kt
e'
Drainage Area (miy ) 6 3
Avg. Streamflow (cfs): jot,
7Q10 (cfs) 42 Y Winter 7Q10 (cfs) 2 24 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream itl Location
Downstream n) Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
30
NH3-N (mg/1)
Nr
D.O. (mg/1)
,./y
TSS (mg/1)
3 v
F. Col. (/100 me
2 a 0
pH (SU)
6 —9
- Refer : Basinwide
/ Streamline WLA
File
Completed By Permits & Engineering
_ At Front Of Subbasin
OLOTTFP,
Comments:
/3S
UskA 2—

Facility Name
NPDES No.
Type of Waste
Facility Status
Permit Status
Receiving Stream
Stream Classification:
Subbasin
County
Regional
Requester
Date of Request
Topo Quad
Office
-1-
FACT SHEET FOR WASTELOAD ALLOCATIONS : '.uEir(ENT
Request # 5986 QFFlCE.
MCADENVILLE WWTP
NC0020052
100%s DOMESTIC
EXISTING
RENEWAL
SOUTH FORK
WSIII
030836
GASTO
MRO
CURKA
1/2/91
F14SE
CATAWBA RIVER
Stream Characteristics:
USGS # 02.1451.1200 Date:'85
Drainage Area: 632 sq. mi.
Summer 7Q10: 124 cfs
Winter 7Q10: 226 cfs
Average Flow: 800 cfs
30Q2: cfs
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Recommend renewal of existing limits, revising fecal coliform limit
to reflect new 200/100m1 limit.
Special Scheduled Requirements and additional comments from Reviewers:
Recommended by:
Reviewed by
Instream Assessment:
ar'r
autih-5-eifvuQ,tcAA4)-,
Regional Supervisor:/9 cff'
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
Date:_1/30/91_
Date: 3 [
Date:
Date: ZAl 7e(

Exis in Limits
W stef low (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1):
TSS (mg/1) :
Fecal Colif rm (/100 ml) :
pH (SU) :
Oil & rease (mg/1) :
TP (mg/1) :
TN (mg/1) :
Toxicity:
Recommended Limits
Wasteflow (MGD) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1) :
TSS (mg/1) :
Fecal Colif rm (/100 mi) :
pH (SU) :
Oil & Grease (mg/1):
TP (mg/1) :
TN (mg/1) :
Toxicity:
-2-
CONVENTIONAL PARAMETERS
Monthly Average
Summer/Winter
0.130
30
nr
nr
30
1000
6-9
Monthly Average
Summer/Winter
0.130
30
nr
nr
30
200
6-9
INSTREAM MONITORING REQUIRMENTS:
Upstream: N Location:
Donwstream: N Location:
Limi s Chan
•
es
Du To
•
Instream Da
Ammonia To
Chlorine
Nutrient Se
HOW
New 7Q10 flow data
Special Modeling Studies
New facility information
Other
a
city
sitive Waters
Daily Maximum
Daily Maximum
Parameter (s) Affected
(explanation of any modifications to past modeling analysis
includidng new flows, rates, field data, interacting discharges, etc.)
3,t �"_ a
)

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/am

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)9' 76 6^ta4C / �?',h• C�-� �/x e� rit. �I�'c- �,s+ J ,
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/30 /.5S-y)
(6, /30x- i. ) /-2Y
4z,09.
tifo,"/112-'i
Z°
Z.41/2v,6

mcadenvi l l e wwt
C
AL
IJpstr
Predicted C
p
CHLORINE ANALYSIS
7Q10: 124.0000 cfs
L2 Effl. Conc: .0.9000 mg/1
(17/19 ug/1): 17.0000 ug/1
eam.CL2 Conc.: 0.0000 uq/1
Design Flow: • 0.1300 MGD
L2 Downstream: . 1.46 ug/1
0.001460 mg/1
CL2 Limit: 10478.53 ug/1
10.47853 mg/1

To: Permits and Engineering Unit
Water Quality Section
Datr: January 24, 1991
1' $
NPDES STAFF REPORT AND RECOMMENDATIOK;:TWED
County: Gaston
NPDES Permit No.: NC0020052 MRO No. 91-5 JQN 2 9
1991
PART I - GENERAL INFORMATION
1. Faci ity and Address: McAdenville WWT?
Post Office BoxU 129
McAdenville, North Carolina 28101
2. Date
!:-:_lsittiZTSR CH
of Investigation: January 17, 1991
3. Report Prepared By: Michael L. Parker, Environmental
Engineer II
4. Person Contacted and Telephone Number: Mr. Mike Church,
operator; 704/824-3551
5. Dire tions to Site: From the junction of Highway 7 (Main
Stre t) and S. R. 2209 (Wesleyan Drive), travel south on S.
R. 2 09 approximately 0.3 mile and turn left onto Church
Stre t (no S. R. number). The wastewater treatment plant is
located at the end of Church Street.
6. Discharge Point(s), List for all discharge Points: -
Latitude: 35° 15' 20"
Longitude: 81° 04' 22"
Atta h a USGS Map Extract and indicate treatment plant site
and ischarge point on map.
USGS Quad No.: F 14 SE
7. Size (land available for expansion and upgrading): There is
ample area available for expansion if necessary.
8. Topography (relationship to flood plain included):
Relatively flat, 1-3% slopes. The site appears to be within
the 100 year flood plain, however, facilities are located
above this point.
9. Loca
the
ion of Nearest Dwelling: Several within 500 feet of
acility.
10. Receiving Stream or Affected Surface Waters: South Fork
Catawba River

Page Two
a. Classification: WS-III
b. River Basin and Subbasin No.: Catawba
c. Describe receiving stream features and pertinent
downstream uses: Discharge enters receiving stream,
which has substantial flow. Other wastewater
dischargers are located above and below the subject
point of discharge.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of Wastewater: 100% Domestic
0% Industrial
a. Volume of Wastewater: 0.13 MGD (Design Capacity)
b. Types and quantities of industrial wastewater: This
facility does not actually receive any industrial
process water, however, an adjacent textile mill is
connected and may have small amounts of industrial
strength contaminants present in the waste stream.
These contaminants potentially could originate from
sinks/drains located throughout the mill.
c. Prevalent toxic constituents in wastewater: With the
exception of chlorine, no toxic constituents are known
to exist in the waste stream.
d. Pretreatment Program (POTWs only): N/A
2. Production Rates (industrial discharges only) in Pounds:
N/A
3. Description of Industrial Process (for industries only) and
Applicable CFR Part and Subpart: N/A
4. Type of Treatment (specify whether proposed or existing):
The existing facility is a contact stabilization wastewater
treatment plant containing an influent pump station, bar
screen, grit chamber, flow measuring device, contact
aeration basin, reaeration basin, aerobic digestor,
clarifier, a polishing pond and effluent disinfection.
5. Sludge Handling and Disposal Scheme: Sludge is removed
periodically and is used to seed the Stowe -Pharr Mills
Wastewater Treatment Plant (NC0004812).
6. Treatment Plant Classification: Less than 5 points; no
rating (include rating sheet). Class II
7. SIC Code(s): 4952
Wastewater Code(s):
Primary: 01
Secondary:

Page Three
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants
Funds (municipals only)? No
2. Special monitoring requests: None at this time
3. Additional effluent limits requests: None at this time
4. Air Quality and/or Groundwater concerns or hazardous waste
utilized at this facility that may impact water quality, air
quality or groundwater? No air quality concerns nor is
hazardous waste utilized. Groundwater should be advised of
the existence of the polishing lagoon which appears to only
have a clay liner.
5. Other: N/A
PART IV - EVALUATION ND RECOMMENDATIONS
The wastewater treatment facilities serving the Town of
McAdenville appeared -o be well operated and maintained at the
time of the site inspection.
The Town anticipates abandonment of the existing polishing
lagoon in the near future as a result of deteriorating effluent
quality. Effluent analyses from the final clarifier have
generally been much better than those from the polishing pond,
therefore, elimination of this unit is planned in the next few
months. The polishing pond will be left intact should a need for
this unit ever arise in the future.
This facility does not have a stand-by power supply.
Electrical power is supplied from two (2) sources (Duke Power
Company and a nearby mill). According to the operator,
electrical power failures result only in a minor disruption to
the wastewater treatment plant. DHS-Water Supply Branch should
be advised of this discrepancy.
Pending receipt and approval of the waste load allocation
and concurrence by DHS-Water Supply Branch, it is recommended
that the Permit be renewed.
� (-274-e • 2�/ /? /
Signature of Report PreparerD"ate
Yeet4--e1-1,_
i/ N%>/
Water Quality- regional Supervisor Date