NCG550145_Wasteload Allocation_19930419

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cc: Permits and Engineering
Technical Support Branch 'APR 11 9.1993
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: Yes No _X_
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Mack Wiggins
Date: April 8, 1993
NPDES STAFF REPORT AND RECOMMENDATION
County Forsyth
Permit No. NC0047651
PART I - GENERAL INFORMATION
1. Facility and Address: Mr. Changho Lee
4929 Romara Drive
Winston-Salem, NC 27103
2 . Date of Investigation: March 30, 1993
3 . Report Prepared by: Cynthia L. Myers
4 . Persons Contacted and Telephone Number: Mr. Changho Lee,
919/765-6741
5. Directions to Site: From WSRO travel Country Club Road to
Jonestown Road to Romara Drive. Turn right onto Romara
Drive. Travel Romara Drive to the first dirt drive on the
right. The residence is the last house on the left.
6. Discharge Points (s) , List for all discharge points:
Latitude: 36 03 ' 37" Longitude: 80 21' 17"
U. S.G. S. Quad No. C17SE U. S.G. S. Quad Name Winston-Salem
West
7. Site size and expansion area consistent with application ?
X Yes No If No, explain:
8 . Topography (relationship to flood plain included) :
The dwellig and system are located out of the flood plain.
9. Location of nearest dwelling:
There are no dwellings within 1000' .

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a. Classification: C
b. River Basin and Subbasin No. : Yadkin-Pee Dee (030704)
c. Describe receiving stream features and pertinent
downstream uses: No known downstream uses or features.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 600 GPD
(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste
Water Treatment facility? 600 GPD
c. Actual treatment capacity of the current facility
(current design capacity) ? 600 GPD
d. Date (s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years.
e. Please provide a description of existing or
substantially constructed wastewater treatment
facilities; Existing 1000 gallon capacity septic tank
and a 522 square foot standard subsurface sand filter.
(Disinfection is not required due to adequate dilution
and Class C designation. )
f. Please provide a description of proposed wastewater
treatment facilities.
g. Possible toxic impacts to surface waters:
h. Pretreatment Program (POTWs only) :
in development approved
should be required not needed
2 . Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
Permit No.
Residuals Contractor
Telephone No.
b. Residuals stabilization: PSRP PFRP
Other
c. Landfill:
NPDES Permit Staff Report
Version 10/92
Page 2

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Residuals Contractor
Telephone No.
b. Residuals stabilization: PSRP PFRP
Other
c. Landfill:
d. Other disposal/utilization scheme (Specify) : Sludge is
pumped from the system by a licensed septic tank
contractor and taken to the nearest WWTP for disposal.
3 . Treatment plant classification (attach completed rating
sheet) .
4 . SIC Code(s) : 4952
Primary 04 Secondary
Main Treatment Unit Code: 4 4 X 0 7
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only) ?
No
2 . Special monitoring or limitations (including toxicity)
requests:
3 . Important SOC, JOC or Compliance Schedule dates: (Please
indicate)
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4 . Alternative Analysis Evaluation: Has the facility evaluated
all of the non-discharge options available. Please provide
regional perspective for each option evaluated.
Spray Irrigation:
Connection to Regional Sewer System:
Subsurface:
Other disposal options:
NPDES Permit Staff Report
Version 10/92
Page 3

PART IV - EVALUATION AND RECOMMENDATIONS
The system was operating well at the time of the
inspection. No odor was detectable and no solids were in the
creek. WSRO recommends the permit be reissued.
Signs ure of report p�`eparer
1 c) 2/57
4er Quality egional Supervisor
7a/ /Y9_3
Da e
NPDES Permit Staff Report
Version 10/92
Page 4

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A. (1 ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Changho Lee Residence, Forsyth County
During the period beginning effective date of this permit and lasting until expiration
the permittee is authorized to discharge from outfall (s) serial number(s) 001
Such discharges shall be limited and monitored by the permittee as specified below:
Ef77uzht Characteristics Discharge Limitations Monitoring Requirements
/dav (lbs/day) Other-Units (Specify) Measurement Sample Sample
Monthly Avg. Weekly Avg• Monthly Avg. - weekly Avg. Frequency Type Location
M3/Day (MGD) 2.27(0.0006) 3.40(0.0009) N/A N/A N/A
30 mg/1 45 mg/1 N/A N/A N/A
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::05 30 mg/1 45 mg/1 N/A N/A N/A
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The pH shall not be less than 6.0 standard units nor greater than 8.5 standard units and
shall be monitored N/A ; o
There shall be no discharge of floating solids or visible foam in other than trace amounts. , • 0,
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