NC0047091_STAFF REPORT_19940308

NPDES DOCUWEMT SCAMMIMC COVER SHEET '
NPDES Permit: NC0047091
Silver Maples WWTP
Document Type: Permit Issuance 1
Wasteload Allocation 1
Authorization to Construct (AtC)
Permit Modification
Speculative Limits 1
� nr t
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: March 8, 1994
1
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SOC PRIORITY PR.n7ECT : Nr
To : Permits and Engineering Unit
Water Quality Section
Attention : Susan Wilson.
Date : February 15 904
NPDES STAFF REPORT ANT-) RECOMMENDATIONS
County : Cabarrt._
NPDES Permit No . : NCO047001
MP.O No . .
o4-20
PART I - GENERAL INFORMATION
1 . Facility and Address : [Si.l_ver_Maj)l_e_M^hil.e—Es.tat_esj` J�
2512 Plantation Road fg'�
Harrisburg , N . C . 25075
,v
Da._ _ of Investigation : February 15 , 1994
3 . Report Prepared By : Michael L . Parker , Environ . Engr . IT
lip
a _ Person Contacted and Telephone Number : Mr . ona_d ,S eiier_ , Z:y ti.
( 7n4) 7°5-5577 .
5 . Directions to Site : From the j.^.t . of hwv . 20 and SR 13n5
(Vitt School Rd . ) southwest of the Town of Harrisburg ,
travel west on SR 13n5 `1 . 0 mile to the jct . with Plantation
Road (no SR number ) . Plantation Road is the entrance road to
Silver Maple Mobile Estates .
E . Discharge Point ( s) , List for all discharge Pints . -
Latitude : 35 ' 22 ' 12,E
Longitude : Fn ° 41 ' 00"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map .
USGS Quad No . : F 16 SW
7 . Site Size and expansion area consistent With application :
Yes . There -- area available for expansion , however ,
protection from flooding will be necessary .
A . Topography ( relationship to flood plain included) : Polling
topography , the WWTP site is. located in the flood plain. .
4 . Location of Nearest Dwelling : Approx . inn+ feet from the
WWTP site .

Page Two
10 . Receiving Stream or effected Surface Waters : Rocky River
a . Classification : C
b . River Basin and Subbasin No . : Yadkin 030711
C . Describe receiving stream features and pertinent
downstream uses . Excellent flow in the receiving
stream, which has generally secondary uses . There is
other dischargers located downstream of this facility
(NCn063752 ) .
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORuc.
1 . "a . Volume of Wastewater : 0 . 04 MAD (Design rapacity)
b , What is the current permitted capacity : 0 . 40 MGD
C4 Actual treatment capacity of current facility ( current
design capacity) : 0 . 40 * MGD -
* estimated (actual capacity unknown)
d . Date(s ) and construction activities allowed by previous
ATCs issued in the previous two years : N/A
P . Description of existing or substantially constructed
WWT facilities : The existing WWT facility is a contact
stabilization WWTP consisting of a grit/surge tank
followed by Primary clarification, aeration,
reaeration, final clarification, chlorination, effluent
flow measurement and an aerated sludge holding tank .
f . Description of proposed WWT facilities : N/A
g . Possible toxic impacts to surface waters : None
expected .
h . Pretreatment Program (POTWs only) : Not Needed .
2 . Residual handling and utilization/disposal scheme : Residuals
are removed by a septage contractor and disposed of in the
City of Concord' s WWTP .
3 . Treatment Plant Classification : Less than 5 points ; no
rating (include rating sheet ) . Class II
4 . SIC Code(s ) : 9999
Wastewater Code( s) :
Primary : 08
Secondary :
5 . MTU Code(s ) : 09007

Page Three
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Gr=.nt
Funds or are any public monies. involved !municipals o.^.ly , .
Nc
2 . Special monitoring or limitation=. ( ins l!lding taxi^itY
requests : None at this time .
3 . Important cOO/jOC_ or Compliance Schedule dates : N/p
4 . Alternative Analysis Evaluation
a . Stray Irrigation. : Insufficient area available .
b . Connect to regional Sewer caste!?:: A municip-al sewer
line does exists immediately across Rocky River from
the WWTP site , however , according to Mr . Sellers ,
current connection .and ..- er fee makess it cost
prohibitive to discontinue use of the WWTP , Mr . Seller_
did indicate that he would like to eliminate the WW=
in the next five years , if rn--s---
-s; hle ,
_ $ttbSllrfare : Insufficient area available .
J . Other disposal options : N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The perrattee rP^,:_lest = that the subject Permit he renewed .
ITIT suI,r.Lement page o.f=t;hp and—sh'n+_tl_37
be r s PA e,. —_tn i .-. nr�t o—
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W _ _ _ _
l_.ty_."There are no other changes and,/Or modifications to be
made in the Permit nor have changes been made in the existing
facility since the Permit Was last issued .
Pending receipt and approval of the WLA, it is recommended
that the Permit be renewed as reque=ted .
Signature _ ReporttPPPrerarer Da e
_IxC /�9 -
Water nua _ y erosional 11 erviscr Dat=

STATE OF NORTH CAROLINA
DEPARTMENT OF CONSERVATION AND DEVELOPMENT
RALEIGH, NORTH CAROLINA
SALr56UPY 25 Mr 4654 1 NW
525 IA NNL POLrs 61 f.V 42�30" 527 528 (KANNAPOLIS) 529
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