NC0074756_staff report_19901106

NPDES DOCUWENT SCANNIN& COVER :iMEET
NPDES Permit: NC0074756
Greater Badin W&S WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date: March 8, 1994
TiziB document iB prianted on reuse paper-ignore any
content on the reverse Bide

100%DOMESTIC FACILITIES-RECD V94 FINAL LIST Mmv
RENEWING WITHOUT MODIFICATION 03/08194
BY MODELER
Request
Permit M Facility Stream Sub-basin County Region WIA7 MOD EdG Comments
74756 GREATER BADIN W WTP LITTLE MOUNTAIN CREEK 030708 STANLY MRO MMV JL
34711 CEDAR PARK ESTATES MHP REEDY CREEK 030711 CABARRUS MRO MMV MW
45471 BARIUM SPRINGS HOME FOR CHILD DUCK CREEK 030706 IREDELL MRO MMV MW Alt Ann]not received
77861 D.W.NELSON A ASSOCIATES WEATHERS CREEK 030706 IREDELL MRO X MMV SR WLA needed-Not built
25259 CWS/I.AMPLIGHTER VILLAGE EAST UT MCKEE CREEK 030711 MECKLENBURG MRO MMV SW Oa
35033 CWS/CABARRUS WOODS SUBDIVISION UT REEDY CREEK 030711 CABARRUS MRO X MMV SW No ATC
47091 SILVER MAPLES MOBILE ESTATES ROCKY RIVER 030711 CABARRUS MRO MMV SW Add fecal=200 and cl=28 ugA,connection clause needed
51632 CWS-HUNTWICK WWI? FUDA CREEK 030711 CABARRUS MRO MMV SW
56201 COUNTRYSIDE MHP UT CARAWAY CREEK 030709 RANDOLPH WSRO MMV SW On,alt ens]needed by 394
64751 RIVER HILLS ESTATES ROCKY RIVER 030711 CABARRUS MRO MMV SW
KEYS TO COMMENTS:
NOTE: IF 7C'UNDER"Request WLA?"COLUMN,
Oa No policy given. Alternatives analysis should be required. THE ENGINEER SHOULD REQUEST A WASTELOAD ALLOCATION.
Ob.Facility must meet 5 A I(by date given in parenthesis).
Or.Alternatives analysis requested. ALSO,FOR A'Oa'COMMENT,GIVE CURRENT ZERO-FLOW POLICY.
Od.Alternatives analysis submitted FOR A'0b'COMMENT,GIVE 5 A 1 LIMITS BY DATE IN PARENTHESIS.
Or.Facility will connect to POTW.
1. Phased permit.
2. Documented instream water quality problem.
3. Facility is requesting modification.
4. WLA should be done per basinwide permitting schedule.

\ tot'&, y' (' citf'
SOC PRIORITY PROJECT : No
To : Permits and Engineering Unit
Water Quality Section
Attention : Jay Lucas
Date : March 3 , 1994
NPDES STAFF REPORT AND RECOMMENDATIONS
County : Stanly
NPDES Permit No . : N("n074756
MR.O No . : 94-46
PART I - GENERAL INFORMATION
1 . Facility and Address : Town of Badin WWTP
c/o Greater Badin Water
and Sewer District
201 South Second Street
Albemarle , N . C . 2Rnn1
2 . Date of Investigation : March 3 , 1994
3 . Report Prepared By : Michael L . Parker , Environ . Engr . II
4 . Person Contacted and. Telephone Number : Stephen Chambers ,
P . E . , ( 704 ) 9R3-7319 .
5 . Directions to Site : The entrance to the WWTP site ( a paved
road) is on the left (south) side of hwy . 740 x n . 25 miles
southwest of the jct . of hwy . 740 and SR 1566 in the Town of
Badin .
6 . Discharge Point (s ) , List for all discharge Points : -
Latitude : 35 ° 23 ' 55"
Longitude : Rn ° n7 ' 2n"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map .
USES Quad No . : F 18 NE
7 . Site size and expansion area consistent with application :
Yes . There is ample area available for future expansions , if
necessary .
R . Topography ( relationship to flood plain included) : The site
is not located in a flood plain .
9 . Location of Nearest Dwelling : Approx . 500+ feet from the
WWTP site .

Page Two
10 , Receiving Stream or Affected Surface Waters : Little
Mountain Creek
a . Classification : C
b . River Basin and Subbasin No . : Yadkin 030708
C . Describe receiving stream features and pertinent
downstream uses : Excellent flow observed in the
receiving stream ( 3-4 feet wide x 4-6 inches deep) at
the time of the site inspection, however , the area had
recently experienced a substantial rainfall event .
Upstream contributions to the receiving stream come
from ALCOA (NC0004308 ) and consist of a cooling Water
discharge . There are no other dischargers and/cr water
intakes known below this outfall .
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a . Volume of Wastewater : 0 . 550 MGD (Design Capacity)
b . What is the current permitted capacity : 0 . 550 MGD
C . Actual treatment capacity of current facility ( current
design capacity) : 0 . 550 MGD
d . Date(s ) and construction activities allowed by previous
purrs issued in the previous two years : N/A
e . Description of existing or substantially constructed
WWT facilities- : The existing WWT facilities consist of
a manually cleared bar screen followed by an influent
pump station., an orbital aeration basic. ( oxidation
ditch) , an aerobic sludge digester , dual final
clarifiers , dual chlorine contact chambers with gaseous
disinfection , SO. dechlorination , cascade post
aeration , four (1) sludge drying beds and stand-by
power .
f . Description of proposed WWT facilities : N/A
n , Possible toxic impacts to surface waters : Facility has
established a consistent passed it ' s toxicity tests .
h . Pretreatment Program (POTWs only) : Not Needed .
2 . Residual handling and utilization/disposal scheme :
Residuals disposal , when necessary , will be at the local
county landfill .
3 . Treatment Plant Classification : Less than 5 points ; no
rating (include rating sheet ) . Class II
4 . SIC Code(s ) : 4952
Wastewater Code(s ) : 01
5 . MTU Code(s ) : 10001

i
t
Page Three
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant
Funds or are any public monies involved (municipals only)?
This facility was constructed with public monies .
2 .' Special monitoring or limitations (including toxicity)
requests : None at this time .
3 . Important SOC/JOC or Compliance Schedule dates : This
facility is under an SOC, however, it relates to I/I
problems in the collection system and not to the inability
of the existing facility to comply with it 's assigned
effluent limitations .
4 . Alternative Analysis Evaluation
a. Spray Irrigation: The county plans to explore the
option of using the effluent from the WWTP on a nearby
golf course, however, they have not established a
timetable for this evaluation.
b. Connect to regional sewer system: N/A
C. Subsurface: N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The Greater Badin Water and Sewer District (GBWSD) requests
renewal of the subject Permit . There have been no changes and/or
modifications to the existing facility since the Permit was last
issued.
This facility is currently under an SOC which will allow the
County to perform remediation on the sewer collection system to
help eliminate excessive I/I . There are no plans for any
additional construction at the WWTP at this time . Pending receipt
and approval of the WLA, it is recommended that the Permit be
renewed as requested.
Si nature of Report Preparer Date
Ae6 3^3 :y
Water Qu ty Regional/ upervisor Date

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Mapped, edited, and published by the Geological Survey kA���
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Topography by photogrammetric methods from aerial photographs
taken 1977. Field checked 1978. Map edited 1981
Projection and 30,000-foot grid ticks: North Carolina coordinate 99 MILS 0'33'
IIIG 10 MIL ``74751
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system (Lambert conformal conic) 1 �r
1000-meter Universal Transverse Mercator grid, zone 17
1927 North American Datum
To place on the predicted North American Datum 1983 urM GRID AND 1981 MAGNETIC NORTH
move the projection lines 11 meters south and DECLINATION AT CENTER OF SHEET
19 meters west as shown by dashed corner ticks Tt
There may be private inholdings within the boundaries of FO
— .,........,I — ctmo .aservations shown on this map A FOLDER