NC0044725_Staff Comments_19900817

NPDES DOCUMENT SCANNING COVER SHEET
NC0044725
LMAC WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Staff Comments
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 17, 1990
Thin document in printed on ru1ee paper - 'Ignore any
content on the resrerne nide

DIVISION OF ENVIRONMENTAL MANAGEMENT
August 17, 1990
MEMORANDUM
TO: WLA File
FROM: Betsy Johnson A
SUBJECT: Reopening permit for Laurinburg-Maxton Airport
Commission
NPDES NO. NC0044725
Scotland County
The Lumber River below Maxton Airport received a water quality
rating of excellent in the 1988 biological survey. This
represents an improvement from the 1985 BMAN rating of good. The
river is classified as a High Quality Water. The facility has no
toxicity problems as evidenced by the toxicity test results. The
facility has not submitted its annual priority pollutant analysis
as required.
The Technical Support Branch has recently evaluated newly
submitted pretreatment headworks information for the
Laurinburg-Maxton Airport Commission. This information on the
307(a) priority pollutants was either not available when the NPDES
permit was last renewed or the POTW's effluent composition has
changed substantially since permit issuance.
Our toxics analysis (see attachment) bases limits and
monitoring requirements on pretreatment information and actual
effluent data. Limits are needed when the actual or reference
effluent concentrations are greater than or equal to one -tenth of
allowable effluent concentrations. Monitoring is recommended
when actual or reference concentrations are between one -tenth
and one-hundreth of the allowable. The pretreatment data, actual
and permitted influent loads, indicates a need for effluent
monitoring for Cadmium, Chromium, Copper, Nickel, Lead, Zinc,
Cyanide, and Silver. This data will help us better evaluate the
permit at renewal -time. Currently, the facility is limited for
Cobalt, Chlorides, and Sodium with monitoring for Copper and Zinc.
After review of this data, it has been determined that the
NPDES permit should NOT be reopened. Since the facility is
already monitoring for the toxics of highest concentration
(i.e., Copper, Zinc, Cobalt, Chlorides, and Sodium), we will wait
until permit expiration (7/31/92) to add new monitoring
requirements. We will work with the region at this time to make
sure annual pollutant scans are submitted.

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01/01/80 ver 3.1 T OXICS REVIEW
Facility: LAURINBURG-MAXTON AIRPORT COMMISSION
NPDES Permit No.: NC0044725
Status (E, P, or M) : E
Permitted Flow: 1.0 mgd
Actual Average Flow: 0.4 mgd
Subbasin: '030751
Receiving Stream: LUMBER RIVER I --------PRETREATMENT DATA I----EFLLUENT DATA ----
Stream Classification: C-SW-HQW I ACTUAL PERMITTEDI
7Q10: 111.0 cfs I Ind. + Ind. + I FREQUENCY
IWC: 1.38 % I Domestic PERMITTED Domestic 1 OBSERVED of Chronic
Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total 1 Eflluent Criteria
Pollutant AL Conc. 1 Eff. Load Load Load Load Load 1 Conc. Violations
(ug/1) (ug/l) 1 % (#/d) (#/d) (#/d) (#/d) (#/d) I (ug/1) (#vio/#sam)
Cadmium S 1.0 1 92% 0.00 0.02 0.02 0.11 0.110 1 I
Chromium S 25.0 1 76% 0.02 0.34 0.36 0.71 0.730 I 1 I
Copper AL 3.5 1 22% 0.02 0.24 0.26 1.20 1.220 1 115.0 1 N
Nickel S 44.0 1 32% 0.01 0.02 0.03 0.33 0.340 1 1 P
Lead S 12.5 I 81% 0.02 0.17 0.19 0.40 0.420 1 1 U
Zinc AL 25.0 1 1% 0.08 0.21 0.29 3.37 3.450 I 145.0 1 T
Cyanide S 2.5 1 59% 0.01 0.02 0.03 0.03 0.044 I I
Mercury S 0.006 I 86% 0.00 0.00 0.00 0.00 0.000 1 1 S
Silver AL 0.03 1 94% 0.00 0.01 0.01 0.01 0.008 1 1 E
Co Oa it na 1 1% 0.00 0.24 0.24 2.70 2.700 1 429.6 1 C
('kt - d s I L 230000 1 1% 16.00 1525.00 1,541.00 5150.00 5166.000 1 974,536.0 I T
Phenols S na 1 99% 0.01 0.00 0.01 0.00 0.010 1 1 I
NH3-N C 1 0% 0.0 0.0 0.00 0.0 0.000 1 1 0
5pd14..4"-- na 1 1% 16.0 1,600.0 1,616.00 4,598.0 4614.000 1 704,062.0 1 N
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
I Effluent Effluent Effluent instream 1 Recomm'd
Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM
I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Pollutant 1 Load Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd 7
(#/d) (ug/1) (ug/1) (ug/l) (ug/1) Loading Loading Data 1 OBSERVED (YES/NO)
Cadmium S 1 7.52 72.613 0.47 2.59 0.00 Monitor 1 1 A
Chromium S 1 62.69 1815.323 25.39 51.50 0.00 Monitor Monitor 1 1 N
Copper AL 1 2.70 254.145 59.61 279.70 1.58 Monitor Monitor Monitor 1 Monthly NO 1 A
Nickel S 1 38.94 3194.968 6.00 67.95 0.00 Monitor 1 1 L
Lead S 1 39.59 907.661 10.61 23.46 0.00 Monitor Monitor 1 1 Y
Zinc AL 1 15.20 1815.323 84.39 1003.89 2.00 Monitor Monitor Monitor 1 Monthly NO 1 S
Cyanide S 1 3.67 181.532 3.62 5.30 0.00 Monitor Monitor 1 1 I
Mercury S 1 0.03 0.436 0.00 0.00 0.00 1 1 S
Silver AL 1 0.30 2.178 0.14 0.14 0.00 Monitor Monitor 1 I
CO)JQ(- 1 0.00 0.000 69.84 765.66 5.92 1 NCAC YES 1 R
Ckjais AL 1 139,809.53 1.67E+07 4.48E+05 1.50E+06 13420.98 Monitor Monitor Monitor 1 NCAC NO 1 E
Phenols S 1 0.00 0.000 0.03 0.03 0.00 __ Limit 1 1 S
NH3-N C 1 0.000 0.00 0.00 0.00 1 1 U
SCfi,1u es 1 0.000 470229.10 1342597.19 9696.10 r 1 NCAC YES 1 L
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DIVISION OF ENVIRONMENTAL MANAGEMENT
July 27, 1990
MEMORANDUM
To: Trevor Clements
From: Nile Testerman 1 "'
Subject: Pretreatment Information Request Form (PIRF)
Laurinburg-Maxton Airport Commission
NC0044725
Attached is an updated PIRF based on LMAC's latest headworks
analysis received by the Division on June 8, 1990. If you have
any questions, please call me at extension 525 or come by my
office.
03 O? S( L,�,,.6er
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NPDES PRETREATMENT rNForzywriai REQUEST Fct
FACILITY NAME: L a:brr r �, G,„tr /Yj�;i fvi /q; r�JJ� &I. NPDES NO. NQOO
J
REQUESTER: DATE: : /a?/ 9D REGION:
PERMIT CONDrTIONS COVERING PRF.TRFATMFNT
This facility has no SIUs and should not
This facility should and/or is developing
Please include the following conditions:
Please include the following conditions:
have pretreatment language.
a pretreatment program.
Program Development
Phase I due / /
Phase II due / /
Additional Conditions
(attached)
This facility is currently implementing a pretreatment program.
Program Implementation
Additional Conditions
(attached)
IGNIFICANT INDUSTRIAL USERS'. (SIUs) CONTRIBUTIONS
SIU FLc Al - '1OfAL:
- . COMF'CS ITICN :
/ V � oobz 7I' . 7'a
PARAMETER
Cd
Cr
Cu
Ni
Pb
Zn
CN
Phenol
Other A
ar.
tco
T'TT,F :
METAL FINISHING: /
O'I'FiER: L10 6a /f 9 - p / MGD
MGD
MGD
MGD
Ewr
Cob« !f
I?5
'RECEIVED:
f R Ss TH►2ou6 N DAILY TOAD IN LBS//Lib.Y f
Ai IE DOSESTic PE rT•z n TUA n -Rwc. � kE 'O�n`
/3. i/2 0,00
/.2o,?6 0^,O 2
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/ / REVIEWED BY:
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State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary December 22, 1988 Director
-.."7
Mr. Larry Barnett
Laurinburg-Maxton Airport
P.O. Box 31
Laurinburg, NC 28353
Igainq
DEC 22 1988
ENV. MANAGEMENT
FAYETTEVILLE REG.
SUBJECT: Modifications to NPDES
Permit No. .NC0044725
County: Scotland
Dear Mr. Barnett:
In accordance with a recent Division of Environmental
Management policy clarification, we are forwarding herewith
modifications to the subject permit. These modifications are
issued to change the annual priority pollutant requirement
contained in Part III, Condition J of your permit. These changes
should clarify this monitoring requirement and result in a
simpler procedure to achieve compliance. Please find enclosed a
new annual pollutant analysis condition which should be inserted
into the permit. The old condition is obsolete and is hereby
removed from the permit. All other terms and conditions contained
in the original permit remain unchanged and in full effect.
These modifications are issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of
Agreement between North Carolina and the U.S. Environmental
Protection Agency dated December 6, 1983. These modifications
become effective on March 1, 1989.
If this decision to revise this requirement is 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 in the form of a written petition,
conforming to Chapter 150B of the North Carolina General
Statutes, and filed with the Office of Administrative Hearings,
Post Office Drawer 11666, Raleigh, North Carolina 27604. Unless
such a demand is made, this decision shall be final and binding.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]

December 22, 1988
Page Two
Please note that a copy of the Annual Pollutant Analysis
Monitoring Requirement Reporting Form A is enclosed, and that
further instructions are to be found on page 1 (one) of that
form. If you have any questions concerning this modification,
please contact Mr. Arthur Mouberry, at telephone number
919/733-5083.
Enclosure
RPW:JD/jho
cc.: Central Files
DEM Regional Office
VOL.19/MOD.NPDES
Sincerely,
R. Paul Wilms
7y

Q. d .
KOONCE, NOBLE & ASSOCIATES, Inc.
CONSULTING ENGINEERS
February 27, 1987
Mr. R. Paul Wilms, Director
Division of Environmental Management
North Carolina Department of Natural
Resources and Community Development
P.O. Box 27687
Raleigh, North Carolina 27611-7687
Re: Laurinburg-Maxton Airport Commission
NPDES Permit. Application
Dear Mr. Wilms:
tDh±—
RE�TVED
MAR 2 1987
Div. of Environmental Mgt.
Raleigh, N. C.
•utzittla op ti
•� v
\AAR 11 1987
PERMITS & ENGINEERING
Please find enclosed three copies of the application to renew the
Laurinburg-Maxton Airport Commission NPDES permit.
We request that the monthly average limit for chloride be increased to 8300
lbs/day and that the monthly average limit for sodium be increased to 6800
lbs/day.
Thank you for your assistance.
SRN j r/pd
Enclosures
1
mkR 16 198
•
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Sincerely,
KOONCE, NOBLE AND ASSOCIATES, INC.
44WL I2J4
Sam R. Noble, Jr., P.E.
1.
MAR 5 1987
si
•
1
v�.. .fiv1,1
208 EAST FIFTH STREET • P. O. BOX 1027 • LUMBERTON, N. C. 28359 • [phone]

f'ar
LAURINBURG - MAXTON
AIRPORT C i y
I9191 :... =5D8'Y 1..
JAN 2 1987
December 23, 1986
Div, of Environmental Mgt,
Raleighi N• ,
Mr. Paul Wilms, Director
Department of Natural Resources & Community Development
512 N. Salisbury Street
Raleigh, N.C. 27611
Dear Paul Wilms,
In accordance with Permit No: NC 0044725, the Laurinburg-Maxton
Airport Commission is hereby applying for a new NPDES permit.
The existing permit expires at midnight on July 31, 1987..
The Laurinburg-Maxton Airport Commission would ask that the
North Carolina Department of Natural Resources and Community
Development grant said permit.
The commission also seeks to have the discharge limits for
chloride and sodium raised. There limits were initially set by
joint agreement between Laurinburg-Maxton Airport Commission and
the North Carolina Division of Environmental Management based on
the expected discharge of our primary industry. Within the last
six months a new industrial expansion at one of our dischargers
has more than, double the Laurinburg-Maxton Airport Commission's
discharge. The rate of discharge of sodium and chloride (mg/1)
have remained the same and the volume has increased. This has
caused the Laurinburg-Maxton Airport Commissiom to exceed the
discharge limits in lbs/day. These violations have had no toxic
effects on the receiving stream, the Lumber River. This is due
to the fact that the limits were set very conservative and could
be greatly expanded. We would like to have these increased
and would be happy to meet with the appropriate Division of
Environmental Management staff to establish new limits.
Enclosed, please find the permit renewal fee.
LB/jg
..ram ,, •.. + fj s3
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;k,• t.
Vtliti....pr
JAN 7 1981
t'CtCi.i� i a Ci 1:.ta:� �r
Thank you,
Larry :arnett
Executive Director
7 Ar :
P. 0. BOX 31 i LAURINBURG, N. C. 28.352 — RT 2, BOX 69 • MAXTON, N. C. 28364.1

State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary Director
June 17, 1987
Merry Barnett, Executive Director
Laurinburg-Maxton—A4Tport Commission
Laurinburg, NC 28352
Dear Mr. Barnett:
ru5tc,IA
G °k
The Pretreatment Staff has reviewed the Laurinburg-Maxton Airport
Commission's headworks analysis. Based on our review we have the
following comments and recommendations:
1. The EPA guideline documents indicate Chromium levels in the
range of 0.25 to 2.0 mg/1 should not inhibit nitrification in a
wastewater treatment facility. It is recommended you revise the
proposed chromium level (8.0 mg/1) in Article V section 28 of the
Sewer Use Ordinance to 2.0 mg/1.
2. The following is a comparison of the total allowable loading
versus the proposed permit limits:
Parameter
Chloride
Cobalt
Sodium
Total
Allowable Loading
4150 lb/day
1.80 lb/day
3400 lb/day
In no case may the permitted loading
loading. The proposed permit limits
the pounds of pollutant entering the
allowable loading.
exceed
should
system
Please submit the items requested in the
30, 1987.
Proposed ^+"
Permit Limit'
5129 lb/:day
2.70 ibjday jni 931
4598
2vir%
the ail�owabli- ��+ORii i 1i11t4�
be revise'.tp ensure
do not exce4the
comments above by June
Pollution Prevention Pays
P.O Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Your finalized headworks analysis will be reviewed when industrial
user permits issued by the Airport Commission are checked by the
Pretreatment Staff. The purpose of this additional review will be to
insure that the total permitted load for each parameter does not exceed
the allowable industrial pounds per day indicated in the analysis.
Therefore. in addition to the items requested above, any other changes
to the headworks analysis will need to be submitted to the pretreatment
staff.
Thank you for your continued cooperation. We look forward to
seeing your permits on or before June 30, 1987.
Sincerely,
Douglas S. Finan
Pretreatment Program Coordinator
cc: Fayetteville Water Quality Supervisor
a