NC0025763_Wasteload Allocation_19930601

Requested by: Charles Alvarez
Refer : Basinwide / Streamline WLA File
Completed By Permits & Engineering
At Front Of Subbasin
PERMIT NO.: NC0025763
PERM1TFEE NAME: Town of Kure Beach
NPDES WASTE LOAD ALLOCATION
FACILITY NAME: Kure Beach Wastewater Treatment Plant
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Minor
Design Capacity: 0.285 MGD
Domestic (% of Flow): 100
Industrial (% of Flow): 0 %
Comments:
t,trS 04 LAI A1-7 51aA-mutric-r).
RECEIVING STREAM: Cape Fear River
Class: SC
Sub -Basin: 03-06-17
Reference USGS Quad: L27NW, Kure Beach
County: New Hanover
Regional Office: Wilmington Regional Office
Previous Exp. Date: 9/30/93 Treatment Plant Class:
Classification changes within three miles:
Ca. 2 miles downstream, Cape Fear becomes Class SA.
(please attach)
Date: 5/3/93
Prepared by: / p}Airid . (�JlIl1J,h rlil/ Date: Z6
Reviewed by: CO3-e/I-Mg-f- Date
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Date Rec.
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5/3/93
744S
Drainage Area (mi2 ) Avg. Streamflow (cfs):TI2kl-
7Q10 (cfs) Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
"Summer—
-Winter.
BOD5 (mg/1)
30
NH3-N (mg/1)
MOOiV0Y
D.O. (mg/1)
TSS (mg/1)
30
F. Col. (/100 ml)
IC
pH (SU)
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%i1v1%aiiire (°c)
1/?0/I ihrI
7%' (111/4)
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Comments:

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Wilmington Regional Office
100% DOMESTIC FACILITIES
RENEWING WITHOUT MODIFICATION
APPLICATIONS RECEIVED DURING 3)93
Permit H Facility
WLA
Stream County Yes* No Comments MOD
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KEYS TO COMMENTS:
Oa No policy given. Alternatives analysis should be required.
Ob. Facility must meet 5 & 1 (by date given in parenthesis).
Oc. Alternatives analysis requested.
Od. Alternatives analysis submitted. R.O. please comment.
Oe. Facility will connect to POTW.
1. Phased permit.
2. Documented ins ream water quality problems.
3. Facility is requesting modification.
4. WLA should be done per basinwide permitting schedule.
a
PLEASE ATTACH STAFF REPORT IF ONE HAS BEEN DONE.
Signature of Regional WQ Supervisor
*If "Yes" checked, then comment required.
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From. /71V-91(/64,
North Carolina Department of Environment,
Health, and Natural Resources
Printed on Recycled Paper

SOC PRIORITY PROJECT: YES NO x
To: Permits and Engineering Unit
Water Quality Section
Attention: Charles Alvarez
(Review Engineer)
Date: 04/08/93
NPDES STAFF REPORT AND RECOMMENDATION
County: New Hanover
Permit No. NC0025763
PART I - GENERAL INFORMATION
1. Facility and Address: Town of Kure Beach WWTP
P.O. Box 3
Kure Beach, NC 28449
2. Date of Investigation: 04/07/93
3. Report Prepared by: B. Steven West
4. Persons Contacted and Telephone Number:
Mr. Sunny Becher, Public Works Director
[phone]
-APR 1 5 1993
5. Directions to Site: Travel south from Wilmington on U.S
Highway 421 to Kure Beach. The plant is located at the end of
"H" Street in Kure Beach.
6. Discharge Point:
Latitude: 33° 59' 48" Longitude: 77° 55' 17"
U.S.G.S. Quad No: L 27 NW U.S.G.S. Quad Name: Kure Beach
7. Site size and expansion area consistent with application?
Yes
8. Topography : The site is approximately 15 feet above MSL.
9. Location of nearest dwelling: The closest dwelling is greater
than 500 feet from discharge point.
10. Receiving stream or affected surface waters: Cape Fear River
a. Classification: Class "SC" waters
b. River Basin and Subbasin No.: 03-06-17
c. Describe receiving stream features and pertinent
downstream uses: Fishing, crabbing, boating.

PART II DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted : 0.285 MGD
b. What is the current permitted flow limit? 0.285 MGD
c. Actual treatment capacity of the current facility :
0.285 MGD
d. Date and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: none
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Facility
consists of influent screening, an aerated lagoon and
effluent chlorination.
f. Please provide a description of proposed wastewater
treatment facilities: No expansions of the existing
facility are currently planned.
g•
Possible toxic impacts to surface waters: chlorine
h. Pretreatment Program :
in development approved
should be required not needed X
2. Residuals handling and utilization/disposal scheme:
The Town estimates that the lagoon has the capacity to
accumulate residuals for 20 years at design flow before
disposal is needed. The Town has not submitted a complete
residuals management plan, but given the estimated interval of
residuals disposal, the Region feels that the plan submitted
by the Town is adequate at this time.
3. Treatment plant classification : Class I facility
4. SIC Code : 4952
Wastewater Code Primary: 01 Secondary: N/A
Main Treatment Unit Code: 310 3

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved? N/A
2. Special monitoring or limitations requests: none
3. Important SOC, JOC or Compliance Schedule dates:
Date: N/A
Submission of Plans and Specifications: N/A
Begin Construction: N/A
Complete Construction: N/A
4. Alternative Analysis Evaluation:
The Town has not evaluated non -discharge options. The
facility has not discharged since it was upgraded in 1989.
The Region has considered the quantity and quality of the
waste stream that will eventually be discharged, and feels
that reissuance of the NPDES permit is the most practicable
alternative at this time.
5. Other Special Items:
The combination of evaporation and large lagoon volume
relative to current inflow is the reason for an absence of a
discharge since the facility was upgraded in 1989. The plant
is currently receiving inflow from 50 - 60 homes, and will
eventually receive inflow from 713 homes. This resulting
inflow will equal its current design capacity.
PART IV - EVALUATION AND RECOMMENDATIONS
It is recommended that a draft permit be prepared and placed
at public notice. If no significant adverse public comment is
received, it is recommended NPDES Permit No. NC0025763 be
reissued to the Town of Kure Beach in accordance with the
basin -wide permitting strategy.
R
t_L - - �1 .3
Signature fzrt reparer Date
Water Quality Regional Supervisor Date
cc: Central Files
Wilmington Regional Office Files
Technical Support Branch

SLUDGE MANAGEMENT PLAN
INTRODUCTION
The wastewater treatment plant for the Town of Kure Beach
include improved treatment using the existing treatment lagoon.
The system design does not provide for separate facilities for
wasting, stabilizing, drying or disposing of excess sludge.
However, the system design provides for solids recirculation from
the effluent end of the lagoon to the influent end via an air
lift pumping system. By system design, sludge will accumulate on
the lagoon bottom and be digested by both aerobic and anaerobic
processes. The lagoon system has been designed on the basis of
holding 20 years' accumulation of sludge at design flow. There-
fore, at some point in the lagoon's service life, the accumula-
tion of excess solids (sludge) will require removal and disposal
in order for the system to meet treatment requirements.
SLUDGE MANAGEMENT PLAN
Sludge Accumulation. Monitoring of sludge accumulation is a
recommended operational procedure. A survey of sludge depth
should be made annually and the results used to estimate when
sludge will need to be removed.
Sludge Sampling and Analysis. At approximately 5-year inter-
vals, the sludge should be sampled and analyzed for toxicity in
accordance with the latest existing USEPA requirements. If
analyses reveal toxic compounds in excess of allowable limits,
the Town should take action to determine and eliminate the
source. From a toxicity standpoint, it is expected that the
sludge will be acceptable for land disposal.
Sludge Removal and On -Site Treatment. When it becomes neces-
sary to remove accumulated solids in about 20 years, the recom-
mended methods if by equipment and operations done by a licensed
contractor under contract to the Town. As part of the contrac-
tural procedure, additional sampling will be required to deter-
mine the volume requiring removal, and the need for additional
sludge stabilization and dewatering.

It is anticipated that pH adjustment using lime addition
will be required for the inactivation of pathogenic organisms and
the reduction of potential nuisance from odor and vectors.
Dewatering may be indicated to reduce the volume to be hauled
off -site. Since removal, stabilization, and dewatering are infre-
quent operations, it is recommended that they be done under con-
tract using mobile equipment.
Sludge Disposal. It is anticipated that land application of
sludges which meet criteria for stabilization and toxicity will
be the disposal method of choice. Currently, the most economical
method for sludge disposal for towns without their own facilities
is by contract with licensed operators who have hauling equipment
and state -approved land application sites.