NCG550174_Staff Report_19930225

cc: Permits and Engineering
Technical Support Branch
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: February 22 , 1993
NPDES STAFF REPORT AND RECOMMENDATION
County Forsyth
Permit No. NC0050717
PART I - GENERAL INFORMATION
1. Facility and Address: Lona Rhodes, 5058 McGee Road,
Walkertown, N.C. 27051 (Lot 6A-1)
2 . Date of Investigation: February 18, 1993
3 . Report Prepared by: David Russell, WSRO
4 . Persons Contacted and Telephone Number: Ms. Lona Rhodes
(919) 595-6491
5. Directions to Site: From Winston-Salem travel Hwy 66 toward
Kernersville. Turn right on McGee Road. Ms. Rhodes (Lots
6A-1, 6A-2) is located on the right, a short distance after
the turn.
6. Discharge Points (s) , List for all discharge points:
Latitude: 36° 10' 36" Longitude: 80° 10' 41"
U. S.G. S. Quad No. C18N0 U.S.G.S. Quad Name Walkertown Quad
7 . Site size and expansion area consistent with application ?
Yes X No If No, explain: The lots are not large enough
for much wastewater treatment system upgrading.
8 . Topography (relationship to flood plain included) : NA
9 . Location of nearest dwelling: There are several dwellings
within 1000 feet of the discharge point.

•
10. Receiving stream or affected surface waters: Mill Creek
a. Classification C
b. River Basin and Subbasin No. : YAD 030704
c. Describe receiving stream features and pertinent
downstream uses: The stream flow through a rural/semi-
rural area
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 0. 0003 MGD
(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste
Water Treatment facility? 0. 0003 mgd
c. Actual treatment capacity of the current facility
(current design capacity) ? 0. 0003 mgd
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years. NA
e. Please provide a description of existing or
substantially constructed wastewater treatment
facilities; 900 gallon septic tank, 261 square foot
subsurface sandfilter.
f. Please provide a description of proposed wastewater
treatment facilities. NA
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: Septic
tank would be pumped by septic tank pumper.
a. If residuals are being land applied, please specify DEM
Permit No.
Residuals Contractor
Telephone No.
b. Residuals stabilization: PSRP PFRP
Other
NPDES Permit Staff Report
Version 10/92
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c. Landfill:
d. Other disposal/utilization scheme (Specify) :
3 . Treatment plant classification (attach completed rating
sheet) . SFR
4. SIC Code(s) : 4952
Primary 04 Secondary
Main Treatment Unit Code: 4 4 0 1
PART III - OTHER PERTINENT INFORMATION - NA
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only) ?
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:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
Ms. Rhodes owns two (2) lots, 6A-1 (NC00507171, and 6A-2
(NC0050725) . She resides on lot 6A-2 . Each of her lots has a
septic tank-subsurface sandfilter system and both lots have
mobile homes on them. Adjacent to Ms. Rhodes' property are Lots
6A-3 and 6A-4 . Both of these lots have permits for septic tank -
NPDES Permit Staff Report
Version 10/92
Page 3

subsurface sandfilter discharges. (Lot 6A-3 , NC0050733 and Lot
6A-4, NC0050741) . Lot 6A-4 has a discharge on the north side of
Mill Creek. Lots 6A-1, 6A-2 , and 6A-3 apparently discharge via a
common effluent discharge pipe into Mill Creek on the south side.
Ms. Rhodes said neither of her lots have chlorination,but she
said Lot 6A-3 does have chlorination. No chlorine tubes were
seen by the writer on Lot 6A-3 , but the backyard was fenced and
the writer did not cross the fence to take a close look. (Dog
inside fence) .
The effluent discharge into the streArwas dark and there was
a strong smell commonly observed from septic tank discharges. It
was apparent the effluent was of relatively poor quality, but it
could not be determined the effectiveness of either of the three
(3) systems.
It is recommended the permit be renewed - chlorination
should be required on each of the three systems.
///C14 4.4 9'26) a 2,
Signature of report preparer
Water Quality Regional Supervisor
Date
NPDES Permit Staff Report
Version 10/92
Page 4

A. ( ).EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0050717
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
•
Effluent Characteristics Discharge Limitations Monitoring Requirements
Units (specify) Measurement Sample 'Sample
Monthly Avg. Weekly Avg, Frequency Type Location
Flow 300 CAD
BOD, 5 day, 20°C
Y 30.0 mg/I 45.0 mg/I
Total Suspended Residue 30.0 mg/I 45.0 mg/I
NH3 as N •
Fecal Coliform (geometric mean) 200.0 /100 ml 400.0 /100 ml
Total Residual Chlorine
Temperature
The chlorinator shall be inspected weekly to ensure there is an ample supply of chlorine tablets for continuous disinfection of the effluent.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
•

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