NCG550280_Staff Report_19890913

cc: Tech. Services (Marcia Toler-McCullen)
Permits and Engineering
County Health Dept.
Central Files
WSRO
Date September 13, 1989
NPDES STAFF REPORT AND RECOMMENDATIONS
County Forsyth
NPDES Permit No. NE O-O "'9^
► C-Gr 55o .S o
Rr r°
PART I - GENERAL INFORMATION
SEP 1 41989,
1. Facility and Address: HNiGM- SUppNT BRANCH
Mr. Paul H. Latham (Lot #14 Tax Block 420
(formerly Mr. Tommy Anthony, SFR)
6911 Mendelssohn Drive ,
Clemmons, NC 27012
2. Date of Investigation: September 12, 1989
3. Report Prepared by: Mike Mickey, Environmental
Technician V
4. Persons Contacted and Telephone Number:
Mr. Bob Westerberg, Builder, ph 724-3254 ( 1606) and
924-6665 (Home)
5. Directions to Site:
Take Middlebrook Drive off of Hwy 158 in Clemmons.
Proceed 0. 3 mile and then turn right onto Greenbrook
Drive, left onto Breckinridge Lane and then right onto
Mendelssohn. The Latham SFR is the first on the right.
6. Discharge Point - Latitude: /? 80° 23 ' 14"
Longitude: �? 36° 00 ' 53"
Attach a USGS Map Extract and indicated treatment plant
site and discharge point on map.
USGS Quad No. C17SW or USGS Quad Name Clemmons, NC
7. Size ( land available for expansion and upgrading) :
There is adequate land available for expansion.
8. Topography (relationship to flood plain included) :
The system is to be located in a low area adjacent to
the creek. The flat terrain makes installation of dual
filters unfeasible
9. Location of nearest dwelling:
The residence is in a subdivision with other dwellings
located nearby

10. Receiving stream or affected surface waters: U.T. to
Johnson Creek
• a. Classification: WS-III
b. River Basin and Subbasin No. : YAD-02
c. Describe receiving stream features and pertinent
downstream uses: The U.T. to Johnson Creek borders
the Clemmons West subdivision. Numerous single
family residence systems discharge into this
tributary.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of wastewater: 100% Domestic
% Industrial
a. Volume of Wastewater: 450 GPD permitted flow.
(System can be designed for 360 GPD based on 120
gpd/bedroom)
b. Types and quantities of industrial wastewater:
N/A
c. Prevalent toxic constituents in wastewater: N/A
d. Pretreatment Program (POTWs only) N/A
in development approved
should be required not needed
2. Production rates ( industrial discharges only) in pounds
N/A
a. highest month in the last 12 months
b. highest year in last 5 years
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) :
Plans of the proposed system2show the following: 1000
gallon septic tank, a 450 ft subsurface sandfilter,
chlorinator and contact tank, step aeration device and
discharge pipe to the creek.
5. Sludge handling and disposal scheme:
Sludge should be removed regularly from the septic tank
by a licensed septic tank pumper to be disposed of in
the nearest municipal WWTP.

j
6. Treatment plant classification: N/A
7. SIC Code( s) 4952
Wastewater Code(s) 04
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction
Grants Funds (municipals only)? N/A
2. Special monitoring requests: Monitoring currently not
required of SFR discharges.
3 . Additional effluent limits requests: N/A
4. Other:
PART IV - EVALUATION AND RECOMMENDATIONS
The permit was originally issued to Mr. Tommy Anthony
on August 21, 1984, however, no residence was ever
constructed. Forsyth Builders (Mr. Bob Westerberg)
purchased the lot in June 1989, and began construction of a
three bedroom residence shortly thereafter. The home is
basically complete and will be ready for occupancy on
October 1, 1989, by Mr. Paul Latham.
Engineering plans and specifications were submitted to
Raleigh on September 11, 1989. The plans appear adequate.
It should be noted that installation of a secondary
subsurface sandfilter is unfeasible due to inadequate slope.
For this reason the size of the filter has been increased to
450 ft .
WSRO recommends transfer of ownership and reissuance of
NPDES permit NO. NC0059170 to Mr. Latham. This area of
Clemmons is scheduled to receive municipal sewer prior to
December 1990. Since the System discharges into a "zero"
flow stream, the permit should expire on December 31, 1991.
In addition, the permit should contain the standard clause
requiring connection to a POTW within 6 months of its
availability.
Signature of repo preparer
' I
Water Quality Supervis

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