NC0034860_Permit Modification_19980526

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Gary Elder
Schneider Mills, Inc.
P.O. Box 519
Taylorsville, North Carolina 27520
Dear Mr. Elder:
/\ .• :
D E N R
May 26,
Vr
Subject: NPDES Permit Modification
NPDES Permit No. NCO034860
Schneider Mills
Alexander County
The Division received your request for a modification of the subject permit on October 7, 1997.
After a review of your request by NPDES and Regional Office personnel, the Division will allow this
modification provided certain conditions are followed. This permit modification corrects the
description of effluent samples collected at the subject facility.
The Division will permit use of the auto -sampler at your facility for the collection of composite
samples, provided that the flow of wastewater from the facility does not vary more than 30%. The
consistent flow rate at the subject facility must be maintained, or the permit will be subject to re-
opening and further modification.
Please find enclosed the revised Effluent Limitations pages for outfalls 001 and 002. These pages
should be inserted into your permit. The old pages may then be discarded. All other terms and
conditions contained in the original permit remain unchanged and in full effect. This permit
modification is issued pursuant to the requirements of North Carolina General Statutes 143-215.1 and
the Memorandum of Agreement between North Carolina and the U. S. Environmental Protection
Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit
modification are unacceptable to you, you have the right to an adjudicatory hearing upon written
request within thirty (30) days following receipt of this letter. This request must be a written petition
conforming to Chapter 150B of the North Carolina General Statutes, filed with the Office of
Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such
demand is made, this decision shall be final and binding.
If you have any questions concerning these permit modifications, please contact Charles Weaver
at telephone number [phone], extension 511.
SinFerel
Preston Howard, Ji•., P.E.
cc. Central Files (e_441�
Mooresville Regional Office, Water Quality Section
NPDES Unit
Compliance Enforcement Unit
Aquatic Toxicology Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper
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A:(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NCO034860
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall
001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow
0.780 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C
43.2-mg/I
281.0 lbs/day
83.5 mg/I
543.0 Ibs da
Weekly
Composite2
E, U, D
NH3 as N (April 1 - October 31)
1.9 mg/I
Weekly
Com osite2
E
NH3 as N (November 1 - March 31)
4.7 mg/I
Weekly
Com osite2
E
Total Suspended Solids
153.0 Ibs/day
335.0 Ibs/day
Weekly
Com osite2
E
COD
836.0 lbs/day
1299.0 lbs/day
Weekly
Com osite2
E
Dissolved Oxygen3
Weekly
Grab
E, U, D
Total Phosphorus
Quarterly
Com osite2
E
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Com osite2
E
Zinc ? ,_ F__
Monthly
Com osite2
E
Cadmium Nc
Quarterly
Composite2
E
Nickel —LL; i
Quarterly
Com osite2
E
Lead (SZ - C
Quarterly
Com osite2
E
Mercury C -
Quarterly
Compos1te2
I E
Silver L
t
Quarterly
Com osite2
E
Chronic Toxici 4
Quarterly
Com osite2
E
Conductivity
Weekly
Grab
U D
emperature
F
Weekly
Grab
U D
Footnotes:
1 Sample locations: E - Effluent; I - Influent; U - Upstream at least 50 feet above the outfall; D - Downstream at NCSR 1313.
Upstream and downstream samples shall be grab samples.
2 Composite samples at this facility are auto -sampled on an hourly basis and are not flow -weighted.
3 The daily dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
4 Chronic Toxicity (Ceriodaphnia) P/F at 46%; March, June, September & December (see Part III, Condition E.).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NCO034860
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall
002. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Fr uen
Sample
T e
Sample
Location'
Flow
Continuous
Recordin
I or E
Total Suspended Residue
30.0 mg/1
45.0 mg/1
2/Month
Com osite3
E
Settleable Solids
0.1 Mg/1
0.2 mg/1
Weekly
Grab
E
TurbiditV2
2
2
Weekly
Grab
U, D
Iron
Weekly
Com osite3
E
Total Residual Chlorine
Weekly
Grab
E
Footnotes:
1 Sample locations: E - Effluent;
I - Influent;
U - Upstream;
D - Downstream.
2 The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds these levels due to natural
background conditions, the discharge level cannot cause any increase in the turbidity of the receiving water.
3 Composite samples at this facility are auto -sampled on an hourly basis and are not flow -weighted.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at
the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

.1 :';aTER CCU;':! L ; 1,
EfteJ,rH
93 MAY 22 AM 8. 15
DIVISION OF WATER QUALITY
May 20, 1998
MEMORANDUM TO: Charles Weaver
FROM: D. Rex Gleason
PREPARED BY: G. T. Chen 1�/ Vc-
SUBJECT: Review Comments on Permit Modification
NPDES Permit No. NC0034860
Schneider Mills
Alexander County, NC
Your fax (dated February 12, 1998) to Robert Scheller,
requesting comments from this Office on permit modification for the
subject facility was apparently misplaced, thus our untimely
response.
This Office has reviewed the modified effluent limitations and
monitoring requirements pages. We have no objections to the
company's request and the provisions set forth in your letter.
Should you have any questions regarding this matter, please
advise.
gtc