NC0020443_Wasteload Allocation_19840911

NPDES DOCUMENT SCANNING; COVER SHEET
NC0020443
Columbia WWTP
NPDES Permit:
Document Type:
Permit Issuance
-,,
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative
Limits
201 Facilities Plan
Instream Assessment (67B)
Environmental
Assessment (EA)
Permit
History
Document Date:
September 11, 1984
This document is printed on reuse paper - ignore any
content oa the reverse side

TdtOUGIi: Meg Kerr
Steve Tedder
DIVISION OF ENVIRONMENTAL MANAGEMENT
September 11, 1984
MEMORANDUM
TO: Roger Thorne
Washington Eegionel Office
FROM: Connie Iieuavener
Technical Services
/1/}`k 5`�'1
SUBJECT: In -stress Assessment
Town of Columbia Wi 'P
Tyrrell County
SUMMARY fi RECOINENDATIONS
The Town of Columbia has requested au SOC in artier to add 6000 gpd of
domestic waste to its secondary -type wastewater treatment facility. At the
present tire, the plant i.a discharging 170,000 gpd into Scuppernong River
in tlhe Pasquotank River Basin. The river is clasaif ied SC end is tidally
affected. hodeling predicts, with a freshwater flow of 20 cfs and under
present operating conditions, the discharge will cause the U.O. in the river
to drop to only 6.64 rag/1. If 6000 gpd were added, the miniusm U..0. in the
stream remains the same. Therefore, the additional wastcfiotr would not be
responsible for any D.O. violations in the stream.
gulf -monitoring data for Columbia indicates that they ere consistently
in compliance with their permit limits for all parameters except for waste -
flow.
ANALYSIS & RESULTS
The folloaring information describes the operation of the Town of
Columbia's WWIP over the put year:
Effluent Characteristics Monthly Average
Flow .1716 mjd
BODg 22.02 mg/1
NS3N 7.02 mg/1
TSS 12.7 mg/1
Ultimate B0D is calculated using the formula 3OOD5 + 4 X N3N.
The receiving stream for the Town of Columbia's discharge is Scuppernong
River, a class ''SC" stream in the Pasquotank River Basin. At 7Q10 flow,
modelinz indicates the D.O. will not drop below the stream standard at either
present conditiorss or with the additional 6000 gpd of waste.
cc: Page Benton
Doug Finan
Cii/jf

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-*co 6
�u 8-a,3
TO:
COUR f E R
Asheville Raleigh
Mooresville (Washington'.
Fayetteville Wilmington
Winston-Salem
DIVISION OF ENVIRONMENTAL MANAGEMENT
MEMO ANDUM
TO: Regional Supervisor
FROM: Coordinator
Enforcement & Energency Response
Document .Review --and -Recommendation
Case Name: Town of Columbia
Case Number: EMC WQ 84-26 67(b)
unty •
•
Date: August 23, 1984
RECEIVED FACILITIES PERFORMANCE U"I
IT
e review the attached document for factual accuracy
regiona office recommendations if appropriate. As it may be necessary for
regiona staff to testify on the facts contained in the document at an ad-
ministr tive hearing, careful review of these facts is most important. For
F&D's, our review should conclude with a recommended amount for civil penal-
ty asse sment.
and provide
Yo r review should be returned to this office by: 9/i/
e ,
If you are unable to complete your review in the time allotted, or
if the tter can be handled more easily by phone, please call (E&ER)
L. Page Benton, Jr. at 733-7015 before the above date.
Document Type:
F&D Review
Remission Request
A'n'strative Hearing
er
Additional instructions:
3y ‘717-.': of this metro a ecuest h1 rt�at assessment
l:l ?e i : c rmrinc..-

Dear Mr. Helms:
TOWN OF COLUMBIA
P. O. BOX 361
COLUMBIA. NORTH CAROLINA 27925
August 10, 1984
Mr. Robert F. Helms, Director
Division of Environmental Management
P. 0. Box 27687
Raleigh, N. C. 27611
R-.CEID
AUG 13 1984
* D . at Environmental Mtn • ,
litakisih, 4 •
r7
This letter is to serve as a formal request to allow the wn af---•
Columbia to install a sewer main to a development called Gilbern Acres.
The reason for this request is that according to our monthly
wastewater treatment reports the Town is over capacity according to
Al Hodges of the Washington office. Since we began working with
Mr. Hodges the Town has raised four manholes and replaced the tops
with solid covers. These manholes are located in an area that floods
frequently. In addition, the Town has an application on file to alter
the flow of the water plant backwash discharge from the wastewater
plant to the Scuppernong River. In addition, we have plans to smoke
test the sewer system with the hope of identifying additional inflow
points. The Town feels that each of the above will greatly decrease
the flow in the wastewater treatment plant to a point well below the
maximum allowed.
The owner of Gilbern Acres plans to develop 12 houses over a
period of about six years, two each year. It is estimated that the
increase in our wastewater monthly flow will be approximately 6,000
gallons of domestic sewer per month per year. The owner of the
property has a considerable investment in the property and has no
way of generating income.
The Town of Columbia would appreciate any assistance that can be
given in order that we may begin construction as soon as possible.
Truly yours,
,
William Harrell
Town Maraer