NC0004081_STAFF REPORT_19941012

NPDES DOCUWENT SCANNIMG COVER SHEET
NPDES Permit:
NC0004081
Aurora packing
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Staff Report
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
October 12, 1994
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To: Permits and Engineering Unit
Water Quality Section
Atten: Dana Bolden
Date: October 12, 1994
NPDES STAFF REPORT AND RECOMMENDATION
Beaufort County
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Permit No. NC0004082 yj .
PART I - GENERAL INFORMATION 'OCT
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1. Facility and Address:
Aurora Packing Company,Inc
P. 0. Box 354 s
Aurora, NC 27806
2.
3.
4.
Date of Investigation: July 22, 1993
Report Prepared by: Marjorie L. Meares
Person(s) Contacted and Telephone Number(s):
Charles S. Williamson, Vice -President: [phone]
5. Directions to Site:
Travelling east on NC33, bear left on to Main St. at the
"Welcome to Aurora" sign. Go through town and turn Left on
Second St. Aurora Packing is on the right side of the
street.
6. Discharge Point(s), List for all discharge points:
Latitude: 350 18, 30" N
Longitude: 760 47' 00" W
Attach USGS map extract and indicate treatment facility site and
discharge point on map.
USGS Quad No. USGS Quad Name: Aurora, NC
7. Size (land available for expansion and upgrading):
Site is approx. 1.5 acres. There is little room available
for expansion/upgrade.
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B. Topography (relationship to flood plain included)
1 flat; approx. elevation 5 feet above MSL.
9. Location of nearest dwelling:
Across Second St., approximately 100 yards east of
facility.
10. Receiving stream or affected surface waters:
UT to South Creek
a. Classification: SC NSW
b. River Basin and Subbasin No.: 03-03-07
c. Describe receiving stream features and pertinent
downstream uses:
The unnamed tributary is a narrow inlet. South Creek is
wind tidally -influenced brackish water; uses include
secondary recreation, fishing and fish propagation. SA -NSW
begins 0.8 miles downstream; there is a Rangia clam
resource in the creek and historical reports of an oyster
resource.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of wastewater: 100% Industrial
a. Volume of Wastewater:
outfall 001: 0.0010 MGD
outfall 002: 0.0001 MGD
Based on water bill maximum discharge would be <1800 gals/day.
b. Types and quantities of industrial wastewater:
outfall 002: crab cooker blowdown wastewater
outfall 001: wash down water from crab picking operation, melt water from ice, and
condensate from refrigeration equipment
C. Prevalent toxic constituents in wastewater:
Chlorine (sodium hypochlorite used in solution) used as disinfectant for tops of
picking tables, as a hand dip, and for floor and wall wash down in picking room and
around crab cooker.
d. Pretreatment Program (POTWs only):
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1
In development Approved
Should be required Not needed XXX
2. Production rates (industrial discharges only) in pounds per day:
a. Highest month in the past 12 months:
Blue crabs, meat (finished product) 680 lbs/day
Blue crabs, live (raw material) 8,475 lbs/day
b. Highest year in the past 5 years:
Blue crabs, meat (finished product) 970 lbs/day
Blue crabs, live (raw material) 12,000 lbs/day
All values are estimated from the following information: Total finished product 1991=
145,559 lbs, assumed 150 days worked, Total finished product July 1993= 16,949, assumed 25 days worked;
assumed 8lbs finished product per 100lbs. raw crab.
3. Description of industrial process (industries only) and applicable CFR Part and Subpart:
Canned and Preserved Seafood Processing Point Source Category, Conventional Blue Crab
Processing Subcategory,
40 CFR 408 Subpart B (408.20-408.27)
4. Type of treatment (specify whether proposed or existing):
Existinit: none
5. Sludge handling and disposal scheme:
Existing: none (crab scrap go to the dehydrator in Bayboro)
6. Treatment plant classification: (attach completed rating sheet)
Rating
7. SIC Code(s): 2092
Wastewater Code(s): Primary 25
Secondary none
Main Treatment Unit Code: 00000
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PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds (municipal only)?
No
2. Special monitoring requests:
None
3. Additional effluent limits requested:
None
4. Other:
None
PART IV - EVALUATION AND RECOMMENDATIONS
The Washington Regional Office recommends that this permit be renewed with the following
observations and conditions. The application recieved had pages from a draft permit. Limits in draft should
be evaluated in light of current production information. We recommend that monthly monitoring be required
for one year and if all data is compliant that frequency be reduced to once a year. Further the dry cleanup
requirements that concern batter are not appropriate to this facility as no breading or battering is done here.
The condition that 'Floors shall be brushed with a still broom prior to wet cleanueis appropriate.
In addition there should be a permit condition that requires screens be maintained on all outflow
lines and that the discharge of offal, crab pieces or crab parts be expressly forbidden.
r , /
Signature of report preparer
Water Quality Regional Supervisor
/a l /.9 l.)Y
Date
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