NC0072125_Staff Report_19940725

SOC PRIORITY PROJECT: YesNo Xk
If Yes, SOC No.
To: Permits and Engineering Unit Water Quality
Attention: (Mack Wiggins)
DateJuly 25, 1994
NPDES STAFF REPORT AND RECOMMENDATION
County NASH
Permit No. NC007 2125
01CJJ?,�1.� 57-
PART I - GENERAL INFORMATION
1. Facility and Address:
Tar River Water Plant
City of Rocky Mount
P.O. Box 1180
Rocky Mount NC, 27802
2. Date of Investigation: July 22, 1994
3. Report Prepared by: Danny Smith
4. Persons Contacted and Telephone Number:
Mr. Van Hoose
[phone]
AA/ -' it+ �/
5. Directions to Site: Highway 301 South to SR 1717 and West
to SR 1748, Plant is located -0.25 rd. mil on left.
6. Discharge Point(s), List for all discharge points:
Latitude: 35°54'02" Longitude:77°53'00"
Attach a USGS map extract and indicate treatment facility
site and discharge point on map.
U.S.G.S. Quad No. D27NW U.S.G.S. Quad Name Nashville
7. Site size and expansion area consistent with application ?
_XX Yes No If No, explain:
8. Topography (relationship to flood plain included):
likely in 100 year flood plain
9. Location of nearest dwelling: none with in 300 feet.
10. Receiving stream or affected surface waters:
Tar River, 28-(63)
WS -]V NSW
a. Classification:
b. River Basin and Subbasin No.: 03-03-02
C. Describe receiving stream features and pertinent
•' �! j h J
1

SOC PRIORITY -PROJECT: Yes No
If Yes, SOC No.
downstream uses:
Sunset Water Plant is located down stream in
Rocky Mount
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: N/A
MGD(Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste
Water Treatment facility? N/A
C. Actual treatment capacity of the current facility
(current design capacity)? N/A
d. Date(s) and construction activities allowed by previous
Authorization to Construct issued in the previous two years:
e. Please provide a description of existing or
substantially constructed wastewater treatment facilities:
Drinking Water Plant: Alum Sludge (AlSO4) from settling
basin and the back wash from filters are pumped to Trac-Vac
Basins, the sludge is pumped from these basins to sludge
press for dewatering, this water is sent back to Trac-Vac
Basins and the supernatant is discharged
f. Please provide a description of proposed wastewater
treatment facilities:
NA
g. Possible toxic impacts to surface waters: NaOH (pH),
chlorine, and metals(e.g. monomeric aluminum, Fe) are
some of the toxicity concerns for this facility.
h. Pretreatment Program (POTWs only):
in development approved NA
should be required not needed
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
permit no.
Residual Contractor Granville Farms
Note: they take sludge to Nash
Telephone No. County Landfill
b. Residuals stabilization: N/A

SOC PRIORITY PROJECT: Yes No
If Yes, SOC No.
PSRP
PFRP
Other
C. Landfill: Alum sludge is taken to Nash County Landfill
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating
sheet):
4. SIC Code(s):4941
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 21 Secondary
Main Treatment Unit Code:
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only)?
N/A
2. Special monitoring or limitations (including toxicity)
requests:
N/A as per current DEM policy -
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: N/A
Connection to Regional Sewer System:
Subsurface:
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
It was noted during the inspection that Alum sludge from the
Sun Set Water Treatment Plant is taken to the Tar River Water
Treatment Plant for sludge dewatering. Also, the Tar River
Water Treatment Plant is not currently monitoring flow as per
their current NPDES permit requirement. The Flow monitoring

SOC PRIORITY PROJECT: Yes No
If Yes, SOC No.
i
issue will be addressed by correspondence form the RRO and should
continue to be a permit requirement.
The Raleigh Regional Office recommends re -issuance of the
NPDES Permit NC0072125./
Signatur o report preparer
ater'Quality Regional Sbpervisor
2te