NC0025453_staff report_19980216

To: Permits and Engineering Unit
Water Quality Section
Attention: (Mari7i Cabe)
Date February 16 . 1998
1; �
NPDES STAFF REPORT AND RECOMMENDATION eCJ
County Johnston
Permit No. NC0025453
PART I - GENERAL INFORMATION
I . Facility and Address :
Little Creek Water Reclamation Facility
Mr. Steven Biggs, Town Manager
Town of Clayton
P.O.Box 879
Clayton, NC 27520
2 . Date of Investigation: January 21, 1998
3. Report Prepared by: Danny Smith
4 . Persons Contacted and Telephone Number:
James Warren - ORC
(919) 553-1536
5. Directions to Site: From Ral. , take Hwy 70 East to Clayton,
turn to the right just past the Hwy 42 (south) exit into the
Cemetery. Follow the road through the Cemetery to the WWTP. (see
attached map) .
6. Discharge Point(s) , List for all discharge points :
Latitude: 35°39'54" Longitude:78°25'33"
Attach a USGS map extract and indicate treatment facility
site and discharge point on map.

U.S.G.S. Quad No. E25NW U.S.G.S. Quad Name Clayton
7. Site size and expansion area consistent with application ?
X Yes No If No, explain:
8. Topography (relationship to flood plain included) :
Facility is located adjacent to the flood plain of
Little Creek.
9 . Location of nearest dwelling:
greater than 500 ft.
10. Receiving stream or affected surface waters :
Neuse River
a. Classification: Neuse River WS-IV NSW CA
Index #: 27-41 . 3
b. River Basin and Subbasin No. : 03-04-02
C. Describe receiving stream features and pertinent
downstream uses :
This WWTP discharges into an upper Costal Plain portion of the
Neuse River (Right Bank) , downstream from Raleigh's wastewater
outfall. The next significant/large downstream water supply use is
Smithfield.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 1 .9MGD
b. What is the current permitted capacity of the Waste
Water Treatment facility? 1.9MGD
C. Actual treatment capacity of the current facility
(current design capacity) ? Treatment Capacity is 1.9 MGD,
d. Date(s) and construction activities allowed by previous
Authorization to Construct issued in the previous two years :
An April 29, 1997 A to C was issued for the construction of a
dual-train, traveling-bridge tertiary filter, backwash return
pump station; installation of a U.V. disinfection unit in the

existing chlorine contact tank; and all associated site work, and
yard piping. Note: no change in flow capacity would be
achieved by this A to C.
e. Please provide a description of existing or
substantially constructed wastewater treatment facilities :
The facility located in Clayton is a 1.9 MGD activated sludge
wastewater treatment plant whose influent treatment consists of an
automatic bar screen, and grit removal. Here the wastestream
splits . A portion of the wastewater is pumped up hill to the
primary clarifier, the water flows by gravity to a secondary
clarifier/digester, through a trickle filter where it then combines
with the original wastestream. Both the influent wastewater and the
portion of initially treated wastewater flows to the oxidation
ditches (2) , then to the clarifiers (2) , and to C12 contact
chamber (UV .has not been constructed yet) . SO2 is then added and
mixed to the wastestream. The effluent is then pumped
approximately 7 miles to the Neuse River.
sludge: drum thickener (polymer addition) , thickener tank,
400, 000 gallon Holding tank, sludge drying beds
This wastewater plant is currently a Class IV facility and Mr.
James Warren, the Operator in Responsible Charge, is a Certified
Grade IV operator.
f. Please provide a description of proposed wastewater
treatment facilities: NA
g. Possible toxic impacts to surface waters :
Ammonia and chlorine are the only likely toxicity concerns
for this facility. (note: they have an A to C to install U.V.
disinfection)
h. Pretreatment Program (POTWs only) :
in development approved XX
should be required not needed

2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
permit no.
Wallace Woodall
Rose Hill
Residuals are taken to Johnston County Landfill,
Residual Contractor
Telephone No.
b. Residuals stabilization: PSRP
PFRP Other
C. Landfill:
d. Other disposal/utilization scheme (Specify) :
3 . Treatment plant classification (attach completed rating
sheet) : Class IV
4 . SIC Code(s) : 4952
Wastewater Code(s) of actual wastewater, not particular
facilities i.e. . , non-contact cooling water discharge from a
metal plating company would be 14, not 56 .
Primary _ 1 Secondary _
Main Treatment Unit Code: 0 5 2 - _3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only) ?
Yes,
An April 29, 1997 A to C was issued to construct of a dual-train,
traveling-bridge tertiary filter, backwash return pump station;
installation of a U.V. disinfection unit in the existing chlorine
contact tank; and all associated site work, yard piping with no
change in flow capacity.
September 26, 1998 - Approval of the Plans and Specifications -
with eligibility for loan funding = from: Bobby Blowe, Construction
Grants and Loans

AF
2. Special monitoring or limitations (including toxicity)
requests :
NA
3. Important SOC, JOC or Compliance Schedule dates: (Please
indicate) NA
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:NA
Connection to Regional Sewer System: NA
Subsurface: NA
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
During the inspection it was noted that the effluent flow meter
was being repaired. A review of the effluent data indicated that
there were no NPDES limit exceedances (including monthly average
flow)observed since the last inspection.
RRO recommends that a footnote be placed on Chlorine to allow that
Chlorine be conducted only if chlorine is used as disinfection
( flexibility when UV is in operation) .
The RRO recommends renesal,.-o 'NPDES Permit NC0025453 .
Signature of report preparer
ACL
Wate ual ty Regional Supervisor
C&
D to