NC0048861_Staff Report_19930217

NPDES DOCUWENT SCANNINL COVER SHEET
NPDES Permit: NCO048861
Creswell WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date: February 17, 1993
Thus document is printed on reuse paper-ignore a.azy
content on the reverse side

To: Permits and Engineering Unit SOC Priority Project: Yes _ No _
Water Quality Section If "Yes," SOC No.
Attn: Charles M. Lowe
Date: February 8, 1993
NPDES STAFF REPORT AND RECOMMENDATION
Washington County
Permit No. NCO048861
PART I - GENERAL INFORMATION
1. Facility and Address:
Town of Creswell Wastewater Treatment, P.O. Box 115, Creswell, NC 27928
2. Date of Investigation: January 25, 1993
3. Report Prepared by: Marjorie L. Meares
4. Person(s) Contacted and Telephone Number(s):
James Davenport, Operator (919) 7974852
5. Directions to Site:
Located off SR 1155 approx. 0.25 miles outside of Creswell.
6. Discharge Point(s), List for all discharge points:
Latitude: 350 51' 30" N Longitude: 760 23' 40" W
Attach USGS map extract and indicate treatment facility site and discharge point on map.
USGS Quad No. USGS Quad Name: Creswell, NC
7. Site size and expansion area consistent with application? Yes _ No X If "No," explain:
Application makes no mention of expansion room. The site is large enough to make some
improvements or expansions. To my knowledge, none are planned.
8. Topography (relationship to flood plain included)
Site is located at approximately 6 feet above MSL and is approx. 3/4 of a mile from the Scuppernong
River. I do not believe the site is in the 100 yr. flood plain.
9. Location of nearest dwelling:
Approx. 200 feet.
10. Receiving stream or affected surface waters: Scuppemong River
a. Classification: C Swamp
b. River Basin and Subbasin No.: 03-01-53
c. Describe receiving stream features and pertinent downstream uses:

f
The Scuppernong is rated for aquatic life propagation, fishing, secondary recreation. The river is
tidal.
PART H -DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be Permitted: 0.064 MGD (Ultimate Design Capacity)
b. Current permitted capacity: 0.064 MGD
c. Actual Treatment Capacity: 0.064 MGD (Current Design Capacity)
d. Date(s) and construction allowed by Authorizations to Construct issued in past two years:
NIA
e. Description of existing or substantially constructed wastewater treatment facilities:
Influent flow measurement by staff gage and V-notch weir, Three lagoons in series, which treat
waste from individual septic tanks. Effluent structure and pipe to the Scuppernong River.
f. Description of proposed wastewater treatment facilities:
g. Possible toxic impacts to surface waters:
None known.
h. Pretreatment Program (POTWs only):
In development Approved
Should be required Not needed X
2. Residuals Handling and Utilization/Disposal Scheme
a. If residuals are being land applied, specify DEM permit number:
Residuals Contractor:
Telephone Number:
b. Residuals Stabilization: PSRP _ PFRP Other
c. Landfill: Washington County
d. Other disposal/utilization scheme (specify):
solids have never been removed from lagoons
3. Treatment Plant Classification (attach completed rating sheet): Class I
4. SIC Code(s): 4952
Wastewater Code(s): Primary 01 Secondary none
Main Treatment Unit Code: 300-0
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies involved
NPDES Permit Staff Report
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(municipals only)?
No
2. Special monitoring or limitations (including toxicity) requests:
Discontinue chlorine residual monitoring.
3. Important SOC, JOC, or Compliance Schedule dates (indicate):
Activity Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternatives Analysis Evaluation: Has the facility evaluated all of the non-discharge options available?
Provide Regional perspective for each option evaluated.
The Town of Creswell is not currently considering any alternative to this already existing
discharge.
5. Other Special Items:
PART IV- EVALUATION AND RECOMMENDATIONS
It is the recommendation of the Washington Regional Office that this permit be renewed and that the following
two modifications be considered:
1)It is the nature of lagoons in this climate that they grow algae. One of the by-product is a high algae
content is elevated pH. For example, this facility has been non-compliant because of pH > 9.0 nine of the last
12 months. It is recommended that the instream waste concentration be analysized to determine if the instream
pH is being effected by this discharge. If the volume and flow of the Scuppernong is sufficient it is
recommended that the pH limit be suspended. Monitoring should continue to be required.
2) The current permit has monitoring requirement for residual chlorine although no disinfection is done. It
might be more appropriate if they are required to monitor residual chlorine only if and when they choose to
disinfect with chlorine. The facility is meeting its current fecal coliform limits without disinfection. Fifteen
months of DMR's show that Creswell has an average fecal count less than ten colonies per 100 mis and a
maximum value of 50 colonies.
Signature of report preparer
k Z�5,
Water Quality Regional Supervisor
2-06, 13
Date
NPDES Permit Staff Report
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