NC0000094_Estusta WLA_19880623

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DIVISION OF ENVIRONMENTAL MANAGEMENT
June 23, 1998
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TO: File
FROM: Randy Dodd PCS
SUBJECT: Ecusta 1dL:A
An intensive survey was performed in 1978 to aid in the development of
a WLA. The Horn Model was subsequently used for calibration and allocation.
Verification was not performed. While previous documentation did not allow
for straightforward review of methods used for choosing parameters, some
useful information was obtained from the study. In particular, it was
decided to use velocity, Ka, and Kd inputs from the study. New flow esti,
mates were obtained from the USGS. Brevard and Dupont were input as inter-
acting dischargers. Ambient data were used to estimate headwater and ru:_or:f
.inputs. Dupont's influence on the French Broad river is overestimated, since
the hydropower reservoir below Dupont was modeled as a free flowing stream.
After compiling input, the Level B software was used for modelin- purposes.
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cin 7 t?t' j;i'7':::-1 Ed cc ,�ditl.�;a, iiaES p1'edl:a.dc 1;..
occurs 10 miles below the outfall.'
Ambient and self-monitoring data indicate that upstream water quality-,
is of high quality. -One downstream value from self-monitoring data (out of
100 values collected during July-Septembdr) violated the DO standard of y
mg/l (4.6 mg/1). However, a systematic influence (besides temperature)
resulting in lower DO was also observed: 98% of the values at the down-
stream station had a lower % saturation than at the upstream station.
Ambient data indicated a very slight increase (0.75 mg/1) in the mean surmer
BOD_„ and a 13% decrease in the % DO saturation when comparing upstream
(Rosman) and downstream (Blantyre) values. No standards violations were
observed at Blantyre.
Benthic macro:invertebrate data at Rosman (1931, 1.982, 1986) and Bla::-
t-.yre (1983, 1986) indicate a decrease in water quality. Besides potentia_
non -point_ influences and small treatment plants, Ecusta, Bre%,ard, and Dut_,:)n;r_
are the m=ajor dischargers above the Blantyre station.

Monitoring Recommendations
Since the predicated sag is expected to occur 10 miles below the
discharge, it is recommended that self-monitoring continue at the
current location 10.8 miles below the outfall. Monitoring should be.
3/week July -October, weekly April -June, and monthly November -March.
Other Issues
The French Broad river has been reclassified as WS -III waters near
Asheville. Since the facility has a bleached kraft line, dioxin is a
potential concern. Water quality based limits for. BOD_, should be issued
in concentration and mass units.

µ STAT[ o
State of North Carolina
Department of Natural Resources and Community Development
James G. Martin, Governor
MEMORANDUM
Asheville Regional Office
S. Thomas Rhodes, Secretary
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
,January 25; `i981B
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TO: Arthur Mouberry, Supervisor
Permits and Engineering Section
THROUGH: Roy M. Davis, Regional Supervisor
Division of Environmental Management ° �L
Forrest R. Westall -�714 1,
FROM:
Regional Water Qualit isor
Gary T. Tweed P.E. , :?:vironmentai i�nginee;r n
Water Quality Section
SUBJECT: Modification of NPDES Permit Number N00000094
Cranston Print Works"•
Fletcher Division..
Henderson County, North Carolina'���a >f�
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As you are aware, the Division has been working with CranstorC�s i. k,
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Print Works over the past few years to resolve a permit adjud'�cakt4on of ,..'o
NPDES Permit Number NC0000094. The adjudication was handledough�,,,?;.
issuance of a SOC allowing time to study and develop recommendwtrpsDT
covering phenols limitations as contained in the NPDES Permit.`Aftr
many months, the Division, Cranston and the Division of Human Resources
has reached agreement on phenols limitations and monitoring require-
ments. These were transmitted to the Company on October 14, 1987 (copy
enclosed). Cranston has agreed to these modifications (see January 8,
1988 response) and ask that the Division proceed with modification.
Once issued Cranston will request the SOC to be voided and withdraw
adjudication request.
It is recommended that the Division reissue NPDES Permit Number
NCO000094 with the proposed modifications. Should there be any
questions, please advise.
GTT:ls
Enclosure
Interchange Building, 59 Woodfin Place, P.O. Box 370, Asheville, N.C. 28802-0370 • Tekphone 7014-253-3341
An Equal Opportunity Affirmative Action Employer