NC0003719_Permit (Issuance)_20020115

NPDES DOCU BENT SCANNING COVER SHEET
NC0003719
Cedar Creek site 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
Monitoring Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
January 15, 2002
This document is printed on reuse paper - ignore any
content on the re'rerse side

6tate of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director
Ms. Deborah R. Small, Plant Manager
Monsanto Company
P.O. Box 2307
Fayetteville, North Carolina 28302
Dear Ms. Small:
e�� z
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
January 15, 2002
Subject: Issuance of NPDES Permit NC0003719
Monsanto - Fayetteville WWTP
Cumberland County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is 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 May 9, 1994 (or as subsequently amended).
The following changes have been made from your draft permit:
• The test organism for the whole effluent toxicity test has been changed from Ceriodaphnia
dubia to fathead minnow. This corresponds to the toxicity language in your existing permit.
• Effluent conductivity monitoring has been removed from the permit. This requirement was
not in your previous permit and was accidentally included in the draft.
• A footnote has been added to the glyphosate monitoring requirement specified in Part A. 1.
This footnote specifies that after cleanup, glyphosate must be monitored six additional times
between February 1 and October 1, 2002. Following a series of both internal discussions and
discussions with the EPA, it was determined that periodic monitoring of glyphosate is necessary to
ensure that this contaminant is no longer being discharged from the site. If these samples indicate
non -detects, then the Division can evaluate removal of glyphosate monitoring.
In addition to the changes made above, Monsanto requested several other changes to the draft permit.
The Division regrets that we cannot comply with these requests; the following explanations are offered:
• Following the flow reduction to 0.5-MGD, quarterly toxicity monitoring must continue. All
facilities discharging "complex wastewater" in the state of North Carolina must have quarterly
toxicity monitoring. Once Monsanto closes, there will still be a wastewater discharge from the two
adjacent OCPSFs. The decision to continue toxicity monitoring is therefore made independent of
WWTP class and is dependent on the wastewater source. The only time annual testing is allowed is
when the discharge is both sporadic and influenced largely by storm events. Please call Kevin
Bowden of the Aquatic Toxicology Unit at [phone] if you have any questions.
• The new facility owner must submit both an ownership change form and a modification
(which includes a description of the new process and a flow justification) as per condition A.
(5.). The Division feels that since the permit requirements were developed on a site -specific basis
for Monsanto, it is impossible to apply these limitations to a new, presumably different, industry. It
is anticipated that the new owner would have different wastewater characteristics that would
require different permit conditions.
• Stormwater monitoring shall continue at SW-1. Since no separate stormwater permit exists for
the site, the existing stormwater monitoring requirements must remain in the permit. Monsanto
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

may request an alternative monitoring site for stormwater (following plant shutdown). In this case,
the Division can make a minor modification to the permit to replace the existing monitoring site
(SW-1) with a more appropriate one.
If any parts, measurement frequencies or sampling requirements contained in this permit 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 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 (6714 Mail
Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final
and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits
required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local
governmental permit that may be required.
If you have any questions concerning this permit, please contact Natalie Sierra at telephone number
[phone], extension 551.
Sincerely,
Original Signed By
David A Goodrich_
Gregory J. Thorpe, Ph.D.
cc: Fayetteville Regional Office/Water Quality Section
NPDES Unit
Point Source Compliance and Enforcement Unit
Technical Assistance and Certification Unit
Mr. Roosevelt Childress, EPA Region 1V
Mr. Manhar Patel, Monsanto Company
Ms. Hope Walters, Monsanto Company
Central Files

Permit NC0003719
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Monsanto Company
is hereby authorized to discharge wastewater from a facility located at
Monsanto - Fayetteville
3468 Cedar Creek Road
Fayetteville
Cumberland County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective February 1, 2002.
This permit and authorization to discharge shall expire at midnight on October 31, 2006.
Signed this day January 15, 2002.
Original Signed By
David A. Goodrich
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission

r_
Permit NC00037t
SUPPLEMENT TO PERMIT COVER SHEET
Monsanto Company is hereby authorized to:
1. Continue to operate an existing 1.25 MGD wastewater treatment facility consisting
of flow equalization, spill basin, pH adjustment, oil skimming, comminute, dual
aeration basins, clarifier, parshall flume, sludge pump station, dual aerobic
digesters, aerated biosolids holding basin, biosolids drying beds and other
associated equipment located at Monsanto company, Fayetteville Plant, on NC
Highway 53, south of Fayetteville in Cumberland County.
2. Upon closure and clean-up of the Monsanto RoundUp plant, continue to operate
an existing 1.25 MGD wastewater treatment facility with a permitted discharge of
0.5 MGD consisting of flow equalization, spill basin, pH adjustment, oil skimming,
comminute, dual aeration basins, clarifier, parshall flume, sludge pump station,
dual aerobic digesters, aerated biosolids holding basin, biosolids drying beds and
other associated equipment located at Monsanto Company, Fayetteville Plant, on
NC Highway 53, south of Fayetteville in Cumberland County.
3. Discharge water from said treatment works at the location specified on the
attached map into the Cape Fear River which is classified C waters in the Cape
Fear River Basin
4. Upon sale of the Monsanto Fayetteville facility, the new owner shall request a
modification to the NPDES permit and complete a new application for discharge in
accordance with special condition A. (5.) for an ultimate permitted flow of 1.25
MGD.
5. Discharge stormwater from the outfall specified on the attached map (and other
outfalls specified in the July 31, 1992 stormwater permit application) into the
Cape Fear River which is classified C waters in the Cape Fear River Basin.
Any other point source discharge to surface waters of the state is prohibited
unless covered by another permit, authorization or approval.
This permit does not relieve the permittee from responsibility for compliance
with any other applicable federal, state, or local law, rule, standard, ordinance,
order, judgement or decree.

NC0003719 - Monsanto Company
Latitude:
Longitude:
Ouad #:
Stream Class:
Receiving Stream:
Permitted Flow:
34°58'08" Sub -Basin:
78°46'58"
H23NF/Cedar Creek, NC
C
Cape Fear River
1.25 MGD (002) and no limit (001)
03-06-15
North
Monsanto Company
Monsanto- Fayetteville Facility
NC0003719

Permit NC0003719
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (002)
During the period beginning on the effective date of this permit and lasting until September 30, 2002, the Permittee
is authorized to discharge from outfall 002. Such discharges shall be limited and monitored by the Permittee as
specified below:
Effluent Characteristics ...
z.. . 4 Limits
_ xMonitoringRequire rents : °M
=
, e •
Monthly Avera g e
Dail Maximum 9
ieasure ent
=frequency
afi le
hype , .
Sam to Locaiion �L
. __w -,
__.
.._ ...
Flow
1.25 MGD
Continuous
Recording
Influent or Effluent
Total Suspended Solids (TSS)
457.0 pounds/day
914.0 pounds/day
3/Week
Composite
Effluent
BOD5, 200C (April 1— October 31)
191.0 pounds/day
382.0 pounds/day
3/week
Composite
Effluent
BOD5, 20°C (November 1— March
31)
382.0 pounds/day
764.0 pounds/day
3/week
Composite
Effluent
COD
5000.0 pounds/day
8000 poundslday
3/week
Composite
Effluent
NH3-N (April 1-October 31)
35.0 pounds/day
70.0 pounds/day
3/week
Composite
Effluent
NH3-N (November 1— March 31)
70.0 pounds/day
140.0 pounds/day
3/week
Composite
Effluent
Fecal Coliform (geometric mean)
3/week
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Giyphosate3
2/month
Composite
Effluent
Total Residual Chlorine
3/Week
Grab
Effluent
Acute Toxicity2
Quarterly
Composite
Effluent
pH4
3/week
Grab
Effluent
Dissolved 0xygen5
Weekly
Grab
Effluent
Dissolved 0xygen5
(June 1— September 30)
3/week
Grab
Upstream,
Downstream6.7
Temperature (°C)
Weekly
Grab
Effluent
Temperature (°C)
(June 1— September 30)
3/week
Grab
Upstream,
Downstream6,7
Conductivity
(June 1— September 30)
3/Week
Grab
Upstream,
Downstream6.7
Notes:
1 Upstream: upstream 2 miles from the outfall. Downstream: downstream, 100 yards upstream of Lock and Dam #3.
2 Whole Effluent Toxicity shall be measured by a P/F at 90% acute toxicity test using Fathead Minnow. Test shall be conducted in
February, May, August and November. See Part A. (5.). Samples for toxicity testing shall be collected at the combined outfall box located
below outfalls 001 and 002.
3 Once cleanup of glyphosate production area is complete, Monsanto Company shall submit a letter to the Division giving the shutdown and
cleanup dates. After this date, Monsanto shall sample for glyphosate six (6) additional times over the course of three months. If these
samples result in non -detects for glyphosate, glyphosate monitoring may be terminated. If glyphosate is detected, the source should be
identified and cleaned; glyphosate monitoring shall continue until such point at which it is not detected in six (6) samples.
4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5 The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L. Effluent samples for dissolved oxygen testing
shall be collected at the combined outfall box located below outfais 001 and 002.
6 Instream monitoring shall be conducted 3/week from June 1 through September 30 and then 1/week from October 1 through May 31.
7 As a participant in the Middle Cape Fear River Basin Association, the instream monitoring requirements as stated above are waived.
Should your membership in the agreement be terminated, you shall notify the Division immediately and the instream monitoring
requirements specified in your permit shall be reinstated.
There shall be no chromium, zinc, or copper added to the treatment system except as pre -approved additives to biocide
compounds or that which results from the normal degradation of piping and equipment used in process units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC000371'1
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQIREMENTS (OCPSF)
During the period beginning on the effective date of the permit and lasting until September 30, 2002, 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
DAII .
r MONTHLY
AVERAGEFrequency
'(pounds/day)::-
Monitoring.
Measurement
r
. ; _ ,
Requirements
! Sample
rpe
Sample
- °Location
MAXThWM ;
(po ds fdapl_ ,
Acenaphthene
0.107
0.040
,
Annual
Grab
Effluent
Acenaphthylene
0.107
0.040
Annual
Grab
Effluent
Acrylonitrile
0.440
0.174
Annual
Grab
Effluent
Anthracene
0.107
0.040
Annual
Grab
Effluent
Benzene
0.247
0.067
Annual
Grab
Effluent
Benzo(a)anthracene
0.107
0.040
Annual
Grab
Effluent
3,4-Benzofluoranthene
0.111
0.042
Annual
Grab
Effluent
Benzo(k)fluoranthene
0.107
0.040
Annual
Grab
Effluent
Benzo(a)pyrene
0.111
0.042
Annual
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.507
0.187
Annual
Grab
Effluent
Carbon Tetrachloride
0.069
0.033
Annual
Grab
Effluent
Chlorobenzene
0.051
0.027
Annual
Grab
Effluent
Chloroethane
0.487
0.189
Annual
Grab
Effluent
Chloroform
0.084
0.038
Annual
Grab
Effluent
2-Chlorophenol
0.178
0.056
Annual
Grab
Effluent
Chrysene
0.107
0.040
Annual
Grab
Effluent
Di-n-butyl phthalate
0.104
0.049
Annual
Grab
Effluent
1,2-Dichlorobenzene
0.296
0.140
Annual
Grab
Effluent
1,3-Dichlorobenzene
0.080
0.056
Annual
Grab
Effluent
1,4-Dichlorobenzene
0.051
0.027
Annual
Grab
Effluent
1,1-Dichloroethane
0.107
0.040
Annual
Grab
Effluent
1,2-Dichloroethane
0.383
0.124
Annual
Grab
Effluent
1,1-Dichloroethylene
0.045
0.029
Annual
Grab
Effluent
1,2-trans-Dichloroethylene
0.098
0.038
Annual
Grab
Effluent
2,4-Dichlorophenol
0.204
0.071
Annual
Grab
Effluent
1,2-Dichloropropane
0.418
0.278
Annual
Grab
Effluent
1,3-Dichloropropylene
0.080
0.053
Annual
Grab
Effluent
Diethyl phthalate
0.369
0.147
Annual
Grab
Effluent
2,4-Dimethylphenol
0.065
0.033
Annual
Grab
Effluent
Dimethyl phthalate
0.085
0.035
Annual
Grab
Effluent
4,6-Dinitro-o-cresol
0.503
0.142
Annual
Grab
Effluent
2,4-Dinitrophenol
0.224
0.129
Annual
Grab
Effluent
2,4-Dinitrotoluene
0.518
0.205
Annual
Grab
Effluent
2,6-Dinitrotoluene
1.165
0.463
Annual
Grab
Effluent
Ethylbenzene
0.196
0.058
Annual I
Grab
Effluent
Fluoranthene
0.124
0.045
Annual
Grab
Effluent
Fluorene
0.107
0.040
Annual
I Grab
Effluent
(continued on next page)

Permit NC0003719
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQIREMENTS (OCPSF)
Continued
�ffluentst ;
. " Limits
_
w tl onitarin 1Requirem_ ents=
Characteristics _
1
ems... �.. _-:�..
p °Y "
,.,. Iptiiind achy)._._
, MONTHLY
AVZCAE
_ . __(pouadW.daYa ,.-
Meassure at
:Sample i
,s
ple 7
queasy
i w...
' tlit
Hexachlorobenzene
Annual
Grab
Effluent
Hexachlorobutadiene
0.089
0.036
Annual
Grab
Effluent
Hexachloroethane
0.098
0.038
Annual
Grab
Effluent
Methyl Chloride
0.345
0.156
Annual
Grab
Effluent
Methylene Chloride
0.162
0.073
Annual
Grab
Effluent
Naphthalene
0.107
0.040
Annual
Grab
Effluent
Nitrobenzene
0.124
0.049
Annual
Grab
Effluent
2-Nitrophenol
0.125
0.075
Annual
Grab
Effluent
4-Nitrophenol
0.225
0.131
Annual
Grab
Effluent
Phenanthrene
0.107
0.040
Annual
Grab
Effluent
Phenol
0.047
0.027
Annual
Grab
Effluent
Pyrene
0.122
0.045
Annual
Grab
Effluent
Tetrachloroethylene
0.102
0.040
Annual
Grab
Effluent
Toluene
0.145
0.047
Annual
Grab
Effluent
Total Chromium
5.034
2.017
Quarterly
Grab
Effluent
Total Copper
6.142
2.635
Quarterly
Grab
Effluent
Total Cyanide
2.181
0.763
Quarterly
Grab
Effluent
Total Lead
1.254
0.582
Quarterly
Grab
Effluent
Total Nickel
7.233
3.071
Quarterly
Grab
Effluent
Total Zinc
Quarterly
Grab
Effluent
1,2,4-Trichlorobenzene
0.254
0.124
Annual
Grab
Effluent
1,1,1-Trichloroethane
0.098
0.038
Annual
Grab
Effluent
1,1,2-Trichloroethane
0.098
0.038
Annual
Grab
Effluent
Trichloroethylene
0.098
0.038
Annual
Grab
Effluent
Vinyl Chloride
0.487
0.189
Annual
Grab
Effluent
Effluent"
Charapteristics
3gampl••
.1 yt
Total PAHs1
69.70
Quarterly
Composite
Effluent
Hexachlorobenzene
1.73
Quarterly
Composite
Effluent
Notes:
1. Total PAHs are comprised of Benzo(a)anthracene; Benzo(a) pyrene; 3,4-Benzofluoranthene;
Benzo(k)fluoranthene; Chrysene; Dibenz(a,h)anthracene and Indeno(1,2,3-ed)pyrnene.
Note: Composite samples must be refrigerated

Permit NC000371 I
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (002)
During the period beginning on October 1, 2002 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
f ` .Limits
r Monitoring Requirements
.. .-. -
Monthly Average
,:S a;w'
Dail Maximum
F a,
Measurement,
Frequency
M Sam lei
yam. ;
Type
Sam' le Location'
Flow
0.5 MGD
Continuous
Recording
Influent or Effluent
Total Suspended Solids (TSS)
72.5 pounds/day
235.7 pounds/day
Weekly
Composite
Effluent
BOD5, 200C
43.4 pounds/day
115.7 pounds/day
Weekly
Composite
Effluent
COD
Weekly
Composite
Effluent
NH3-N (April 1-October 31)
35.0 pounds/day
70.0 pounds/day
Weekly
Composite
Effluent
NH3-N (November 1— March 31)
70.0 pounds/day
140.0 pounds/day
Weekly
Composite
Effluent
Fecal Coliform (geometric mean)
Weekly
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Total Residual Chlorine
Weekly
Grab
Effluent
Acute Toxicity2
Quarterly
Composite
Effluent
pH3
Weekly
Grab
Effluent
Dissolved 0xygen4
Weekly
Grab
Effluent
Dissolved 0xygen4
(June 1— September 30)
3/week
Grab
Upstream,
Downstream5,6
Temperature (°C)
Weekly
Grab
Effluent
Temperature (2C)
(June 1— September 30)
3/week
Grab
Upstream,
Downstream5,s
Conductivity
(June 1— September 30)
3/Week
Grab
Upstream,
Downstream5.s
Notes:
1 Upstream: upstream 2 miles from the outfall. Downstream: downstream, 100 yards upstream of Lock and Dam #3.
2 Whole Effluent Toxicity shall be measured by a P/F at 90% acute toxicity test using Fathead Minnow. Test shall be
conducted in February, May, August and November. See Part A. (5.). Samples for toxicity testing shall be collected at the
combined outfall box located below outfalls 001 and 002.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L. Effluent samples for dissolved
oxygen testing shall be collected at the combined outfall box located below outfalls 001 and 002.
5 Instream monitoring shall be conducted 3/week from June 1 through September 30 and then 1 /week from October 1 through May 31.
6 As a participant in the Middle Cape Fear River Basin Association, the instream monitoring requirements as stated above are
waived. Should your membership in the agreement be terminated, you shall notify the Division immediately and the instream
monitoring requirements specified in your permit shall be reinstated.
There shall be no chromium, zinc, or copper added to the treatment system except as pre -approved additives to biocide
compounds or that which results from the normal degradation of piping and equipment used in process units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0003719
A. (4.) EFFLUENT LIMITATIONS AND MONITORING REQIREMENTS (OCPSF)
During the period beginning on October 1, 2002 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
Characteristres
t' �
.-^ -;Limits -
-
'Mbnitor1ng R_equirer�`ents
_
. _ . .
..::
DAB%
o T Yr -a
1- M•easurement
� q ncp
ue
_
`Sample!
, `1.W
,
rS pi1ee
CIA "tioni ,
ca
1. -
J< i , ,
,Poundsdy,)
--TAT '~ `
`r �.C� . i
(P unctiall Y
Acenaphthene
0.107
0.040
Annual
Grab
Effluent
Acenaphthylene
0.107
0.040
Annual
Grab
Effluent
Acrylonitrile
0.440
0.174
Annual
Grab
Effluent
Anthracene
0.107
0.040
Annual
Grab
Effluent
Benzene
0.247
0.067
Annual
Grab
Effluent
Benzo(a)anthracene
0.107
0.040
Annual
Grab
Effluent
3,4-Benzofluoranthene
0.111
0.042
Annual
Grab
Effluent
Benzo(k)fluoranthene
0.107
0.040
Annual
Grab
Effluent
Benzo(a)pyrene
0.111
0.042
Annual
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.507
0.187
Annual
Grab
Effluent
Carbon Tetrachloride
0.069
0.033
Annual
Grab
Effluent
Chlorobenzene
0.051
0.027
Annual
Grab
Effluent
Chloroethane
0.487
0.189
Annual
Grab
Effluent
Chloroform
0.084
0.038
Annual
Grab
Effluent
2-Chlorophenol
0.178
0.056
Annual
Grab
Effluent
Chrysene
0.107
0.040
Annual
Grab
Effluent
Di-n-butyl phthalate
0.104
0.049
Annual
Grab
Effluent
1,2-Dichlorobenzene
0.296
0.140
Annual
Grab
Effluent
1,3-Dichlorobenzene
0.080
0.056
Annual
Grab
Effluent
1,4-Dichlorobenzene
0.051
0.027
Annual
Grab
Effluent
1,1-Dichloroethane
0.107
0.040
Annual
Grab
Effluent
1,2-Dichloroethane
0.383
0.124
Annual
Grab
Effluent
1,1-Dichloroethylene
0.045
0.029
Annual
Grab
Effluent
1,2-trans-Dichloroethylene
0.098
0.038
Annual
Grab
Effluent
2,4-Dichlorophenol
0.204
0.071
Annual
Grab
Effluent
1,2-Dichloropropane
0.418
0.278
Annual
Grab
Effluent
1,3-Dichloropropylene
0.080
0.053
Annual
Grab
Effluent
Diethyl phthalate
0.369
0.147
Annual
Grab
Effluent
2,4-Dimethylphenol
0.065
0.033
Annual
Grab
Effluent
Dimethyl phthalate
0.085
0.035
Annual
Grab
Effluent
4,6-Dinitro-o-cresol
0.503
0.142
Annual
Grab
Effluent
2,4-Dinitrophenol
0:224
0.129
Annual
Grab
Effluent
2,4-Dinitrotoluene
0.518
0.205
Annual
Grab
Effluent
2,6-Dinitrotoluene
1.165
0.463
Annual
Grab
Effluent
Ethylbenzene
0.196
0.058
Annual
Grab
Effluent
Fluoranthene
0.124
0.045
Annual
Grab
Effluent
Fluorene
0.107
0.040
Annual
Grab
Effluent
Hexachlorobenzene
Annual
Grab
Effluent
Hexachlorobutadiene
0.089
0.036
Annual
Grab
Effluent
Hexachloroethane
0.098
0.038
Annual
Grab
Effluent
(continued on next page)

Permit NC0003719
A. (4.) EFFLUENT LIMITATIONS AND MONITORING REQIREMENTS (OCPSF)
(Continued)
Effluent
characteristics
►omit"sY
orifgiRegoiremenits C
Monit-
v
.,.
- -- - .
....
PAIR;---
NEHG_
F _..AVLR�ACrE
.__ . ,___ _,.Y
fin
-Measurement
queacy�="
:sam ale
1`9rPe
Sample
t
LoCatiOt�
...__
_.ram_. --. . M .
unds. -da
Methyl Chloride
0.345
0.156
Annual
Grab
Effluent
Methylene Chloride
0.162
0.073
Annual
Grab
Effluent
Naphthalene
0.107
0.040
Annual
Grab
Effluent
Nitrobenzene
0.124
0.049
Annual
Grab
Effluent
2-Nitrophenol
0.125
0.075
Annual
Grab
Effluent
4-Nitrophenol
0.225
0.131
Annual
Grab
Effluent
Phenanthrene
0.107
0.040
Annual
Grab
Effluent
Phenol
0.047
0.027
Annual
Grab
Effluent
Pyrene
0.122
0.045
Annual
Grab
Effluent
Tetrachloroethylene
0.102
0.040
Annual
Grab
Effluent
Toluene
0.145
0.047
Annual
Grab
Effluent
Total Chromium
5.034
2.017
Quarterly
Grab
Effluent
Total Copper
6.142
2.635
Quarterly
Grab
Effluent
Total Cyanide
2.181
0.763
Quarterly
Grab
Effluent
Total Lead
1.254
0.582
Quarterly
Grab
Effluent
Total Nickel
7.233
3.071
Quarterly
Grab
Effluent
Total Zinc
Quarterly
Grab
Effluent
1,2,4-Trichlorobenzene
0.254
0.124
Annual
Grab
Effluent
1,1,1-Trichloroethane
0.098
0.038
Annual
Grab
Effluent
1,1,2-Trlchloroethane
0.098
0.038
Annual
Grab
Effluent
Trichloroethylene
0.098
0.038
Annual
Grab
Effluent
Vinyl Chloride
0.487
0.189
Annual
Grab
Effluent
Note: Composite samples must be refrigerated
A. (5.) SPECIAL CONDITION FOR TERMINATION OF MONSANTO DISCHARGE
The Monsanto Roundup plant portion of this discharge is expected to terminate within the first quarter of 2002. The
Monsanto Company will retain control over the utilities until such time as the facility and utilities are purchased.
The allocation for this permitted discharge remains at 1.25 MGD. However, a new permit for the discharge will be
issued when all of the following take place:
• Proof of change of ownership from Monsanto Company has been furnished. The resulting
name/ownership change form shall be submitted to the Division of Water Quality.
• A new application for a discharge has been completed and submitted by the new owner of the facility
with a request for a major modification of the NPDES permit.
• The request for a major modification to NPDES Permit NC0003719 should include the appropriate
fee for such an action.
• Completion of the application shall include a complete flow justification for the proposed discharge
and an Engineering Alternatives Analysis (EAA).
When all of the above actions are complete, the Division shall furnish new effluent limits pages that are appropriate
for the proposed discharge or set of discharges.

Permit NC0003719
A. (6.) BIOCIDE CONDITION
The permittee shall obtain approval from the Division's Aquatic Toxicology Unit prior to the use of any biocide (not
previously approved by the Division) in the effluent discharged under this permit. Approval for use of any biocide
not previously approved should be requested at least 90 days in advance of any planned usage.
Contact the Aquatic Toxicology Unit for detailed instructions on requesting approval of biocides:
NC DENR / DWQ / Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Concentrations of chromium, copper, or zinc added to biocides shall not exceed applicable water quality standards or
action levels in the receiving stream.
A. (7.) DETECTION LEVELS FOR COMPLIANCE
If the discharge limitation of a given parameter is below quantitation limits, the measured quantity for the purposes of
a compliance evaluation is considered to be zero. Values that report below quantitation level shall be deemed to be in
compliance.
A. (8.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
The Permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina
Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent
Concentration" (Revised July, 1992 or subsequent versions). The monitoring shall be performed as a Fathead
Minnow (Pimephales promelas) 24-hour static test. The effluent concentration at which there may be at no time
significant acute mortality is 90% (defined as treatment two in the procedure document). Effluent samples for self -
monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The tests
will be performed during the months of February, May, August, and November.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C. Additionally,
DWQ Form AT-2 (original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility
name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the
comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited
above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin
immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to
quarterly in the months specified above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
(continued on next page)

Permit NC0003719
A. (8.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
(continued)
Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to
include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up
testing to be completed no later than the last day of the month following the month of the initial monitoring.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up
testing to be completed no later than the last day of the month following the month of the initial monitoring.
A. (9.) STORMWATER MONITORING REQUIREMENTS/Analytical Monitoring
During the period beginning on the effective date of the permit and lasting until. September 30, 2002, the Permittee
is authorized to discharge from outfall 001 (Stormwater). Such discharges shall be limited and monitored by the
permittee as specified below:
STORMWATER
CHARACTERISTICS.
LIMITS
MONITORIN1G~RE-QUIREMENTS
Units
Cutoff
,Goncentrationl
Measurement.
2
Frequency.
„aPle
Type. _ .:
Sample
- Lo_cation3
Total Flow4
MG
Annual
SW-1
Total Rainfall4
Inches
Annual
SW-1
Event Duration4
Minutes
Annual
SW-1
Total Suspended Solids
mg/L
100.00
Annual
Grab
SW-1
Nickel
mg/L
789.00
Annual
Grab
SW-1
Lead
µg/L
33.78
Annual
Grab
SW-1
Di-n-butyl phthalate
mg/L
Annual
Grab
SW-1
Glyphosate
mg/L
Annual
Grab
SW-1
Isopropylamine
mg/L
Annual
Grab
SW-1
Surfactants (MBAS)
mg/L
100.0
Annual
Grab
SW-1
Notes:
1. Cutoff Concentration. For each parameter, the arithmetic mean of all analytical sampling results collected during
the first year of the permit shall be calculated for each individual outfall and compared to the cut-off
concentrations listed. If the arithmetic mean is below the specified cut-off concentration for a given parameter,
then the facility is not required to continue annual analytical monitoring for that parameter at the outfall during
the term of the permit unless a significant change in facility operations or configuration occurs. If cut-off
concentration results in discontinued analytical monitoring at an individual discharge outfall, the permittee is
required to maintain facility operations that ensure the continuation of stormwater runoff quality.
2. Measurement frequency. Once per year. The facility must perform analytical sampling during the first full year
and last year of the permit term regardless of cut-off concentration conditions. Analytical results from sampling
during the final year of the permit term must be submitted with the permit renewal application. Failure to
monitor storm events in accordance with the specified frequency shall constitute a violation of this permit.
3. Sample Location. Samples to be collected at each stormwater discharge outfall (SW-1) located north of the river
water intake pump overflow and south of the sludge drying beds.

Permit NC0003719
4. For each sampled representative storm event the total precipitation, storm duration, and total flow must be
monitored. Total flow shall be either: (a) measured continuously, (b) calculated based on the amount of area
draining to the outfall, the amount of build -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20 minute intervals during the rainfall event (not to exceed three hours).
For purposes of the stormwater sampling required in this permit, all samples shall be collected from a discharge
resulting from a representative storm event (See Parts A. (13) and A. (14.)).
A. (10.) STORMWATER MONITORING REQUIREMENTS/Analytical Monitoring
During the period beginning on October 1, 2002 and lasting until expiration, the Permittee is authorized to
discharge from outfall 001 (Stormwater). Such discharges shall be limited and monitored by the permittee as
specified below:
Total FIow4
• MG
Measurement,
Frequency2 {.
Annual
Sample
31 ocation13
SW-1
Total Rainfall4
Inches
Annual
SW-1
Event Duration4
Minutes
Annual
SW-1
Total Suspended Solids
mg/L
100.00
Annual Grab
SW-1
Nickel
mg/L
789.00
Annual Grab
SW-1
Lead
µg/L
33.78
Annual Grab
SW-1
Di-n-butyl phthalate
mg/L
Annual Grab
SW-1
Notes:
1. Cutoff Concentration. For each parameter, the arithmetic mean of all analytical sampling results collected during
the first year of the permit shall be calculated for each individual outfall and compared to the cut-off
concentrations listed. If the arithmetic mean is below the specified cut-off concentration for a given parameter,
then the facility is not required to continue annual analytical monitoring for that parameter at the outfall during
the term of the permit unless a significant change in facility operations or configuration occurs. If cut-off
concentration results in discontinued analytical monitoring at an individual discharge outfall, the permittee is
required to maintain facility operations that ensure the continuation of stormwater runoff quality.
2. Measurement frequency. Once per year. The facility must perform analytical sampling during the first full year
and last year of the permit term regardless of cut-off concentration conditions. Analytical results from sampling
during the final year of the permit term must be submitted with the permit renewal application. Failure to
monitor storm events in accordance with the specified frequency shall constitute a violation of this permit.
3. Sample Location. Samples to be collected at each stormwater discharge outfall (SW-1) located north of the river
water intake pump overflow and south of the sludge drying beds.
4. For each sampled representative storm event the total precipitation, storm duration, and total flow must be
monitored. Total flow shall be either: (a) measured continuously, (b) calculated based on the amount of area
draining to the outfall, the amount of build -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20 minute intervals during the rainfall event (not to exceed three hours).
For purposes of the stormwater sampling required in this permit, all samples shall be collected from a discharge
resulting from a representative storm event (See Parts A. (13) and A. (14.)).

Permit NC0003710
A. (11.) STORMWATER MONITORING REQUIREMENTS/ Qualitative Monitoring
Qualitative monitoring requires a qualitative inspection of each stormwater outfall, regardless of representative outfall
status, for the purpose of evaluating the effectiveness of the Stormwater Pollution Prevention Plan and assessing new
sources of stormwater pollution. No analytical tests are required. Qualitative monitoring of stormwater outfall does
not need to be performed during a representative storm event.
Stormwater Discharge. Characteristics
_ .Measurernent;;Frequency' ,
: Sample Location2
Color
Semi -Annual
SW-1
Odor
Semi -Annual
SW-1
Clarity
Semi -Annual
SW-1
Floating Solids
Semi -Annual
SW-1
Suspended Solids
Semi -Annual
SW-1
Foam
Semi -Annual
SW-1
0il Sheen
Semi -Annual
SW-1
Other obvious indicators of stormwater pollution
Semi -Annual
SW-1
Notes:
1. Measurement Frequency. The first qualitative monitoring event during the term of the permit must be
performed during the initial analytical monitoring event. All subsequent qualitative monitoring will be performed
twice per year, once in the spring (April - June) and once in the fall (September - November).
2. Sample Location: SW-1 Visual monitoring may be performed just inside the perimeter fence at a point where no
additional significant materials could reasonably enter the system as a result of facility operations.
A. (12.) STORMWATER SPECIAL CONDITION — OUTFALL
Representative outfall status has been granted to allow representative stormwater monitoring to be performed at the
manhole located north of the river water intake pump overflow and south of the sludge drying beds. Should the
facility configuration, drainage areas and activities, and/or stormwater outfalls on -site be significantly altered, the
permittee shall notify the Division in writing prior to implementation of said changes.
A. (13.) STORMWATER POLLUTION PREVENTION PLAN
The permittee shall develop a Stormwater Pollution Prevention Plan, herein after referred to as the Plan. The Plan
shall be considered public information in accordance with Part II, Section E.10. of this permit. The Plan shall be
updated on an annual basis. The Plan shall include, at a minimum, the following items:
a. Site Plan: The site plan shall provide a description of the physical facility and the potential pollutant sources
which may be expected to contribute to contamination of regulated stormwater discharges. The site plan
shall contain the following:
(1) A general location map (USGS quadrangle map, or appropriately drafted equivalent map), showing the facility's
location in relation to transportation routes and surface waters, and the name of the receiving water(s) to which
the stormwater outfall(s) discharges. If the discharge is to a municipal separate storm sewer system, the name
of the municipality and the ultimate receiving waters, and accurate latitude and longitude of the point(s) of
discharge must be shown.
(2) A narrative description of storage practices, loading and unloading activities, outdoor process areas, dust or
particulate generating or control processes, and waste disposal practices.
(3) A site map (or series of maps) drawn to scale with the distance legend indicating location of industrial activities
(including storage of materials, disposal areas, process areas, and loading and unloading areas), drainage
structures, drainage areas for each outfall and activities occurring in the drainage area, building locations and
impervious surfaces, the percentage of each drainage area that is impervious. For each outfall, a narrative
description of the potential pollutants which could be expected to be present in the regulated stormwater
•
discharge.

Permit NC0003719
(4)
(5)
A list of significant spills or leaks of pollutants that have occurred at the facility during the 3 previous years and
any corrective actions taken to mitigate spill impacts.
Certification that the stormwater outfalls have been evaluated for the presence of non-stormwater discharges.
The certification statement will be signed in accordance with the requirements found in Part II, Section B.11.
b. Stormwater Management Plan: The stormwater management plan shall contain a narrative description of the
materials management practices employed which control or minimize the exposure of significant materials to
stormwater, including structural and non-structural measures. The stormwater management plan, at a
minimum, shall incorporate the following:
(1) A study addressing the technical and economic feasibility of changing the methods of operations and/or
storage practices to eliminate or reduce exposure of materials and processes to stormwater. Wherever
practicable the permittee should consider covering storage areas, material handling operations, manufacturing
or fueling operations to prevent materials exposure to stormwater. In areas where elimination of exposure is
not practicable, the stormwater management plan shall document the feasibility of diverting the stormwater
runoff away from areas of potential contamination.
(2) A schedule to provide secondary containment for bulk storage of liquid materials, storage of Section 313 of
Title III of the Superfund Amendments and Reauthorization Act (SARA) water priority chemicals, or storage
of hazardous materials to prevent leaks and spills from contaminating stormwater runoff. If the secondary
containment devices are connected directly to stormwater conveyance systems, the connection shall be
controlled by manually activated valves or other similar devices [which shall be secured with a locking
mechanism] and any stormwater that accumulates in the containment area shall be at a minimum visually
observed prior to release of the accumulated stormwater. Accumulated stormwater shall be released if found
to be uncontaminated. Records documenting the individual making the observation, the description of the
accumulated stormwater and the date and time of the release shall be kept for a period of five years.
(3) A narrative description of Best Management Practices (BMPs) to be considered such as, but not limited to, oil
and grease separation, debris control, vegetative filter strips, infiltration and stormwater detention or retention,
where necessary. The need for structural BMPs shall be based on the assessment of potential of sources
contributing significant quantities of pollutants to stormwater discharges and data collected through monitoring
of stormwater discharges.
(4) Inspection schedules of stormwater conveyances and controls and measures to be taken to limit or prevent
erosion associated with the stormwater systems.
c. Spill Prevention and Response Plan: The Spill Prevention and Response Plan shall incorporate a risk
assessment of potential pollutant sources based on a materials inventory of the facility. Facility personnel (or
team) responsible for implementing the plan shall be identified in the plan. A responsible person shall be on -
site at all times during facility operations that have the potential to contaminate stormwater runoff through
spills or exposure of materials associated with the facility operations.
d. Preventative Maintenance and Good Housekeeping Program: A preventative maintenance program shall be
developed. The program shall document schedules of inspections and maintenance activities of stormwater
control systems, plant equipment and systems. Inspection of material handling areas and regular cleaning
schedules of these areas shall be incorporated into the program.
e. Training schedules shall be developed and training provided at a minimum on an annual basis on proper spill
response and cleanup procedures and preventative maintenance activities for all personnel involved in any of
the facility's operations that have the potential to contaminate stormwater runoff. Facility personnel (or
team) responsible for implementing the training shall be identified in the plan.
f. The Stormwater Pollution Prevention Plan shall identify a specific position(s) responsible for the overall
coordination, development, implementation, and revision to the Plan. Responsibilities for all components of
the Plan shall be documented and position(s) assignments provided.
g-
Plan Amendment: The permittee shall amend the Plan whenever there is a change in design, construction,
operation, or maintenance which has a significant effect on the potential for the discharge of pollutants via a
point source to surface waters. The Stormwater Pollution Prevention Plan shall be reviewed and updated on
an annual basis.

Permit NC000371 t)
The director may notify the permittee when the Plan does not meet one or more of the minimum
requirements of the permit. Within 30 days of such notice, the permittee shall submit a time schedule to the
Director for modifying the Plan to meet minimum requirements. The permittee shall provide certification in
writing (in accordance with Part III, Standard Conditions, Section B.11.) to the Director that the changes
have been made.
h. Facility Inspections: Inspections of the facility and all stormwater systems shall occur at a minimum on a
semiannual schedule, once in the fall (September - November) and once during the spring (April - June). The
inspection and any subsequent maintenance activities performed shall be documented, recording date and
time of inspection, individual(s) making the inspection and a narrative description of the facility's stormwater
control systems, plant equipment and systems. Records of these inspections shall be incorporated into the
Stormwater Pollution Prevention Plan.
Visual monitoring as required in A (4) Stormwater Monitoring Requirements/Qualitative Monitoring shall be
performed in addition to facility inspections.
Implementation: Implementation of the Plan shall include documentation of all monitoring, measurements,
inspections, maintenance activities and training provided to employees, including the log of the sampling
data. Activities taken to implement BMPs associated with the industrial activities, including vehicle
maintenance activities must also be recorded. All required documentation shall be kept on -site for a period
of five years and made available to the Director or his authorized representative immediately upon request.
A. (14.) STORMWATER MINIMUM MONITORING AND REPORTING REQUIREMENTS
Minimum monitoring and reporting requirements are as follows unless otherwise approved in writing by the Director
of the Division of Water Quality:
a. If a facility has multiple discharge locations with substantially identical stormwater discharges that are
required to be sampled, the permittee may petition the Director for representative outfall status. If it is
established that the stormwater discharges are substantially identical and the permittee is granted
representative outfall status, then sampling requirements may be performed at a reduced number of outfalls.
b. Visual monitoring for color, odor, solids, foam, outfall staining, visible sheens and dry weather flow shall be
performed at all stormwater discharge outfall locations. All visual monitoring shall be documented and
records maintained with the Stormwater Pollution Prevention Plan. The initial visual monitoring event shall
be performed simultaneously with the first analytical monitoring event and documentation of only this initial
visual monitoring event shall be submitted along with the required analytical monitoring submittal.
c. For purposes of the stormwater sampling required in this permit, all samples shall be collected from a
discharge resulting from a representative storm event (See definitions in Part II, Section A). Failure to
monitor storm events in accordance with the specified frequency shall constitute a violation of this permit. If
the stormwater runoff is controlled by a detention pond, the following sampling requirements shall apply:
(1) If the detention pond detains the runoff generated by one inch of rainfall for 24 hours, visual observations for
color, foam, outfall staining, visible sheens and dry weather flow are required, but analytical sampling shall not
be required.
(2) If the detention pond discharges only in response to a storm event exceeding a 25-year, 24-hour storm, the
pond shall be considered a non -discharging stormwater control system and not subject to NPDES
requirements, unless the discharge causes a violation of water quality standards.
d. Samples analyzed in accordance with the terms of this permit shall be submitted on forms approved by the
Director no later than January 31 for the previous year in which sampling was required to be performed.

Permit NC0003719
g•
e. Analytical results from sampling during the final year of the permit term shall be submitted with the permit
renewal application.
f. This permit regulates stormwater discharges associated with industrial activity. Non-stormwater discharges
which shall be allowed in the stormwater conveyance system are:
(1) All other discharges that are authorized by an NPDES permit.
(2) Foundation drains, air -conditioner condensate without added chemicals, springs, waterline and fire hydrant,
water from footing drains, flows from riparian habits and wetlands, fire -fighting training and fire system testing.
(3) Discharges resulting from fire -fighting.
If the storm event monitored and reported in accordance with this permit coincides with a non-stormwater
discharge, the permittee shall separately monitor and report all parameters as required under the non-
stormwater portion of this permit and provide this information with the stormwater discharge monitoring
report.
A. (15.) STORMWATER DEFINITIONS
1. Best Management Practices (BMPs): Measures or practices used to reduce the amount of pollution entering
surface waters. BMPs may take the form of a process, activity, or physical structure.
2. Bulk Storage of Liquid Products: Liquid raw materials, manufactured products, waste materials or by-
products with a single above ground storage container having a capacity of greater than 660 gallons or with
multiple above ground storage containers located in dose proximity to each other having a total combined
storage capacity of greater than 1,320 gallons.
3. Landfill: A disposal facility or part of a disposal facility where waste is placed in or on land and which is not a
land treatment facility, a surface impoundment, an injection well, a hazardous waste long-term storage facility or a
surface storage facility.
4. Point Source Discharge of Stormwater: Any discernible, confined and discrete conveyance including, but
not specifically limited to, any pipe, ditch, channel, tunnel, conduit, well, or discrete fissure from which
stormwater is or may be discharged to waters of the state.
5. Representative Storm Event: A storm event that measures greater than 0.1 inches of rainfall and that is preceded
by at least 72 hours in which no storm event measuring greater than 0.1 inches has occurred. A single storm
event may contain up to 10 consecutive hours of no precipitation. For example, if it rains for 2 hours without
producing any collectable discharge, and then stops, a sample may be collected if a rain producing a discharge
begins again within the next 10 hours.
6. Secondary Containment: Spill containment for the contents of the single largest tank within the containment
structure plus sufficient freeboard to allow for the 25-year, 24-hour storm event.
7. Section 313 Water Priority Chemical:
A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) of 1986, also titled the Emergency Planning and Community Right -to -Know Act
of 1986;
b. Is present at or above threshold levels at a facility subject to SARA title III, Section 313 reporting requirements;
and
c. That meet at least one of the following criteria:
(1) Is listed in Appendix D of 40 CFR part 122 on either Table II (organic priority pollutants), Table III
(certain metals, cyanides, and phenols) or Table IV (certain toxic pollutants and hazardous
substances);

Permit NC0003719
(2) Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40 CFR 116.4; or
(3) Is a pollutant for which EPA has published acute or chronic water quality criteria.
8. Significant Materials: Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents,
and plastic pellets; finished materials such as metallic products; raw materials used in food processing or
production; hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is
required to report pursuant to section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as
ashes, slag and sludge that have the potential to be released with stormwater discharges.
9. Significant Spills: Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable
quantities under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4).
10. Stormwater Associated with Industrial Activity: The discharge from any point source which is used for
collecting and conveying stormwater and which is directly related to manufacturing, processing or raw material
storage areas at an industrial site. Facilities considered to be engaged in "industrial activities" include those
activities defined in 40 CFR 122.26(b)(14). The term does not include discharges from facilities or activities
excluded from the NPDES program.
11. Stormwater Runoff: The flow of water which results from precipitation and which occurs immediately following
rainfall or as a result of snowmelt.
12. Grab Sample: An individual sample collected instantaneously. Grab samples that will be directly analyzed
or qualitatively monitored must be taken within the first 30 minutes of discharge.
13. Visible Sedimentation: Solid particulate matter, both mineral and organic, that has been or is being
transported by water, air, gravity, or ice from its site of origin which can be seen with the unaided eye.
14. Municipal Separate Storm Sewer System: A stormwater collection system within an incorporated area of
local self-government such as a city or town.
15. Rinse Water Discharge: The discharge of rinse water from equipment cleaning areas associated with
industrial activity. Rinse waters from vehicle and equipment cleaning areas are process wastewaters and do not
include washwaters utilizing any type of detergent or cleaning agent.
16. Stormwater Pollution Prevention Plan: A comprehensive site -specific plan which details
measures and practices to reduce stormwater pollution and is based on an evaluation of the
pollution potential of the site.
17. Ten Year Design Storm: The maximum 24-hour precipitation event expected to be equaled or exceeded on
the average once in ten years. Design storm information can be found in the State of North Carolina Erosion
and Sediment Control Planning and Design Manual.
18. Total Flow: The flow corresponding to the time period over which the entire storm event occurs. Total flow
shall be either; (a) measured continuously, (b) calculated based on the amount of area draining to the outfall, the
amount of built -upon (impervious) area, and the total amount of rainfall, or (c) estimated by the measurement of
flow at 20 minute intervals during the rainfall event.
19. 25-year. 24 hour storm event: The maximum 24-hour precipitation event expected to be equaled or
exceeded, on the average, once in 25 years.

Re: Monsanto (NC0003719)
Subject: Re: Monsanto (NC0003719)
Date: Wed, 12 Dec 2001 10:43:02 -0500
From: [e-mail]
To: Natalie Sierra <[e-mail]>
Good Morning,
I am in the process of sending you the "no -comment" letter for the
Monsanto Company NPDES -Permit (NC0003719) once I get it okayed by my
supervisor this morning.
I would, however, like to let you know of a few comments that were
attached to the "no -comment" letter from our Wasteload Allocation
Section.
COMMENTS:
1. There was no water quality justification provided for the BODS and
NH3-N effluent limits. Please demonstrate that the discharge will not
cause or contribute to water quality violations.
2. Zinc has no specific effluent limit in the draft permit; only
monitoring is required. Effluent guidelines require that zinc be
limited in accordance with OSPSF regulations. There are no exceptions,
unless a variance is sought and granted. Raw water quality is not a
basis for granting a variance.
Please call me if you need to discuss these.
Thanks,
Caroline Ejimofor
NPDES and Biosolids Permits Section
Permits, Grants and Technical Assistance Branch
EPA Water Management Division
e-mail address: [e-mail]
phone number: 404-562-9309
fax number: 404-562-9318
Natalie Sierra
<Natalie.Sierra@n
Ejimofor/R4/USEPA/US@EPA
cmail.net>
12/10/2001 10:51
AM
To: Caroline
cc:
Subject: Monsanto (NC0003719)
Caroline -
Would it be possible for you to fax a copy of the Monsanto comment
letter in
addition to sending it by mail? We've been having several problems with
the
mail system lately (letters not arriving, etc.)
so I would very much appreciate a faxed copy.
Thanks,
Natalie
(See attached file: Natalie.Sierra.vcf)
1 of 2 12/20/01 5:14 PM

FW: FAYETTEVILLE DRAFT NPDES PERMIT #NC0003719
Subject: FW: FAYETTEVILLE DRAFT NPDES PERMIT #NC0003719
Date: Thu, 29 Nov 2001 07:52:41 -0600
From: "WALTERS, HOPE A [AG/1418]" <[e-mail]>
To: "'NATALIE [e-mail]"' <[e-mail]>
Natalie,
Here is the email we sent you on one of the comments, please send your fax
number and I will fax you the letter of the comments that we sent in.
Thanks,
Hope
> Original Message
> From: TROTMAN, L RUTH EAG/1418]
> Sent: Thursday, November 29, 2001 7:47 AM
> To: WALTERS, HOPE A (AG/1418 ]
> Subject: FW: FAYETTEVILLE DRAFT NPDES PERMIT #NC0003719
Original Message
> From: TROTMAN, L RUTH (AG/1418]
> Sent: Thursday, November 15, 2001 10:57 AM
> To: '[e-mail]'
> Cc: WALTERS, HOPE A [AG/1418] ; PATEL, MANHAR N (AG/1418] ; TROTMAN, L
> RUTH EAG/1418]
> Subject: FAYETTEVILLE DRAFT NPDES PERMIT #NC0003719
> Dear Natalie,
> Per your telephone request from Hope Walters, 11/15/01 listed below are
> some additional comments for the draft NPDES permit #NC0003719. Based on
> time constraints we are submitting these comments via email.
> In Table A (1) Effluent Limitations and Monitoring Requirements, it is
> stated that Glyphosate analysis will be sampled twice monthly beginning
> January 1, 2002 until September 31, 2002. Glyphosate production will
> cease effective December 31, 2001. All Glyphosate waste will be treated
> by January 31, 2002.
> Effective February 1, 2002, all lab work will be outsourced. Glyphosate
> analytical testing is a confidential method that can only be analyzed in
> house. It is Monsanto's request that testing for Glyphosate be eliminated
> beginning February 1, 2002.
> Sometime towards the end of January 2002, Monsanto will submit a letter in
> writing to the NCDENR - DWQ - NPDES Unit stating that Glyphosate is no
> longer being produced.
> If you have any questions or need further clarification, please contact me
> at 910-433-4242 or Hope Walters at 910-433-4237.
> Thanks for your support,
> Ruth Trotman
C ►NDi ! caN C.. Cy v� v� t S Cart keT
\-t 3 S -IC S 1\, ic. M6)
N� ALL wl t,�2���
NJ-1
o c
1 of 1 11/29/01 10:14 AM

Natalie,
I am reviewing draft permits while Kristie is out and have reviewed the draft Monsanto
1) Effluent limitations pages A(1) and A(3) refer to special conditions page A(5) for
2) Both A(1) and A(3) refer to fathead minnow acute pass/fail tests while special cond
Please call or email if you have questions.
Matt
Matt Matthews
NC DENR/Division of Water Quality
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
v-[phone]
f-[phone]
MailTo:[e-mail]
1 of 1 12/5/01 2:13 PM

Nov-29-01 01:11P Monsanto 910+435 3390
MONSANTO W.
Food • Health • Hope
November 8 2001
NCDENR -- DWQ - NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Attn. Ms. Natalie Sierra
Re: Draft Monsanto Fayetteville Site NPDES Permit #NC0003719
Dear Ms. Sierra,
P.02
f.;L
MoNsANTo COMPANY
AGR•_UlL:RAL SEcloR
P.O. Box 2_307
CEDAR CREEK ROAD
FAYEREVIUE, NORTH CAROUNA 28302
P-$ONE I910) 323-330O
Listed below are Monsanto's comments for the "Draft" copy of the Fayetteville NPDES permit
#NC0003719 which you sent to Hope Walters via email.
Item #1
In your cover letter you make reference to Whole Effluent Toxicity Testing. Please specify that this
requirement refers to P/F @ 90% toxicity using acute Fathead Minnow testing versus chronic
requirements. You state that it must remain quarterly due to the facility being a Grade III. In
October 2002 when the facility is lowered to a Grade II, Monsanto requests that sampling be
required annually versus quarterly.
Item #2 Jl�i _ 1 1nj+ ‘,pc 61k C*'. j '-Cf1W19
Under page 2 of the cover letter you specify BOD and TSS limitsl will decrease to monthly averagesii.`s
of 43.4 and 72.5 Ibs/day, respectively. Currently bench tests are being conducted in our St. Louis
research lab to determine the feasibility of these limits. At this time we do not have sufficient data -.
to ensure our capability of meeting these limits. '11?Sfi . t
it Item #3 /-`4L S
S .
In the supplement to permit cover sheet, item #1 refers to the plant's physical location. Our street
address is 3468 Cedar Creek Road instead of the previous Hwy 53, south of Fayetteville in
Cumberland County.
Item #4
Also in the supplement to permit cover sheet, item #4 refers to new owner requirements. We
would like clarification regarding change of ownership and new owner requirements. Currently
there are references to a new owner submitting a new permit application, modification and proof of
change of ownership (cover letter, supplement and permit A(5). Monsanto would prefer a change
of ownership notification of some sort only in lieu of permit modification or a new application.
Item #5 rc.p(�� � t '\ IAA:.) Ll
Section A (1) Effluent Limitations and Monitoring Requirements. Analysis of conductivity was
added to the effluent sampling. This was not included in the previous permit. We request that this
requirement be removed.

Nov-29-01 01:12P Monsanto
910+435 3390 P.03
Item #6
Currently the sampling location for stormwater analytical and qualitative monitoring is located at S
SW-1. SW-1 is located south of the Roundup operations. Once the facility completes the I`
dismantling of the Roundup operations, is there a need to continue to monitor this outfall? Should ► '
there be stormwater sampling associated with the remaining industrial operations, i.e. DuPont and
Wellman?
Per our telephone conversation, November 8, all of our other questions have been addressed. If
you need further information, please contact me at [phone] or Hope Walters at (910) 433- Q)
4237.
Sincerely,
L acita.a,
Ruth Trotman
Environmental/IH Coordinator
XC: Deb Small
Manhar Patel
Hope Walters
c.
y S�

NORTH CAROLINA,
Cumberland County.
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
STATE OF
NORTH CAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION/NPDES UNIT
1617 MAIL SERVICE
CENTER
RALEIGH NC 27699-1617
NOTIFICATION OF INTENT
TO ISSUE A NPDES
WASTEWATER PERMIT
On the basis of thorough
staff review and application
of NC General Statute
143.21, Public law 92-500
and other lawful standards
and regulations, the North
Carolina Environmental Man-
agement Commission pro-
poses to issue a National Pol-
tutant Discharge Elimination
System (NPDES) wastewater
discharge permit to the
person(s) listed below effec-
tive 45 days from the pub-
lish date of this notice.
Written comments regard-
ing the proposed permit will
be accepted until 30 days af-
ter the publish date of this
notice. All comments re-
ceived prior to that date are
considered in the final deter-
minations regarding the pro-
posed permit. The Director
of the NC Division of Water
Quality may decide to hold a
public meeting for the pro-
posed permit should tho Divi-
sion receive a significant de-
gree of public interest.
Copies of the draft permit
and other supporting infor-
mation on file used to deter-
mine conditions present in
the draft permit are available
upon request and payment
of the costs of reproduction.
Mail comments and/or re -
and at quests for information to the
NC Division of Water Quality
qualifici at the above address or call
Ms. Christie Jackson at (919)
The - 733'5083. extension 538.
Please include the NPDES
permit number (attached) in _
any communication. Interest-
ed persons may also visit
the Division of Water Quality
at 512 N. Salisbury Street,
Raleigh, NC 27604-1148 be-
tween the hours of 8:00 a.m.
and 5:00 p.m. to review infor-
mation on file.
NPDES Permit Number
NC0003719, Monsanto, PO
Box 2307, Fayetteville, NC
28302 has applied for a per-
mit renewal for a facility lo-
cated in Cumberland County
discharging treated wastewa-
ter into Cape Fear River in
the Cape Fear River Basin.
Currently total suspended
solids, BOD. COD and ammo-
' nia nitrogen are water quali-
ty limited. This discharge
may affect future allocations
in this portion of the receiv-
ing stream.
10/14 249846
Before the undersigned, a Notary Public of said County and State, duly
commissioned and authorized to administer oaths, affirmations, etc., personally
appeared. C I ND Y L. OR O Z C O
who, being duly sworn or affirmed, according to law, doth depose and say that
he/she is LEGAL SECRETARY
of THE FAYETTEVILLE PUBLISHING COMPANY, a corporation organized
and doing business under the Laws of the State of North Carolina, and publishing
a newspaper known as the THE FAYETTEVILLE OBSERVER, in the City of
Fayetteville, County and State aforesaid, and that as such he/she makes this
affidavit; that he/she is familiar with the books, files and business of said
Corporation and by reference to the files of said publication the attached
advertisement of LEGAL NOT I CE
MONLANTO
of NG DENR
RECEIVED
NOV 0 6 2001
was inserted in the aforesaid newspaper in space, and on dates as follows:
DWQ BUDGET OFFICE
OCT14
tblication The Fayetteville Observer was a newspaper meeting all the requirements and
.c. No. 1-597 G.S. of N. C.
d from the books and files of the aforesaid corporation and publication.
Title
14TH
Sworn or affirmed to, and subscribed before me, this day
OCTO--I3ER
of
A.D.,
2001
In Testimony Whereof, I have hereunto set my hand and affixed my official seal,
the day and year aforesaid.
4?Umda4 ubeta.0
My commission expires C 5TH
MAIL TO: NCDENR,
BUDGET OFF IC,
PO BOX 29535
RALEIGH, NC 27626
day of DECEMBER 2005
7E36979002
Notary Public

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0003719
Facility Information
Applicant/Facility Name:
Monsanto Company: Monsanto — Fayetteville
Applicant Address:
P.O. Box 2307, Cedar Creek Road; Fayetteville, North Carolina 28302
Facility Address:
3468 Cedar Creek Road; Fayetteville, North Carolina 28301
Permitted Flow
1.25 MGD
Type of Waste:
91.3% industrial, 8.7% domestic
Facility/Permit Status:
Class 111/Active; Renewal
County:
Cumberland County
tsceuaneous
Receiving Stream:
Cape Fear River
Regional Office:
Fayetteville
Stream Classification:
C
State Grid / USGS Quad:
H23NE/Cedar Creek,
NC
303(d) Listed?
No
Permit Writer:
Natalie Sierra
Subbasin:
Drainage Area (mi2):
03-06-15
Date:
21 Septemberol
4395
Summer 7Q10 (cfs)
791
Winter 7Q10 (cfs):
30Q2 (cfs)
Average Flow (cfs):
4340
1WC (%):
0.24%
Lat. 34° 58' 8" N Long. 78° 46' 58" W
BACKGROUND
Monsanto Company's Fayetteville facility produces Roundup®, the company's glyphosate-based
pesticide. The company operates a 1.25-MGD wastewater treatment plant that handles process and
domestic flow from the Roundup® plant as well as from the neighboring DuPont and Wellman plants.
DuPont manufactures polyethylene terephthalate (PET) and Wellman manufactures partially oriented
yarn. Process flows from both facilities fall under the Organic Chemicals, Plastics, and Synthetic Fibers
(OCPSF) technical guidelines (40 CFR 414); the applicable guidelines for DuPont are in Subcategory D-
Thermoplastic Resins and Subcategory C- Other Fibers contains the applicable guidelines for Wellman.
Due to the limited nature of the pesticide technical guidelines (40 CFR 455, Subcategories A and C), the
Division of Water Quality has developed site -specific limitations on a number of parameters of concern,
including TSS and ammonia nitrogen.
The Fayetteville Regional Office (FRO) describes the facility as well run and maintained. It has
experienced very few compliance problems during this permitting cycle.
Instream Monitoring and Verification of Existing Conditions and DMR Data Review.
This facility discharges to the Cape Fear River, which is classified as C waters. Since
Monsanto's application was submitted in early 2000, the OCPSF and production data submitted span
1997-1999. DMR data from 1998-2000 were also used to assess effluent water quality.
Using DMR data from 1997-1999, the average effluent BOD concentration was 9.64 mg/L and
the average TSS concentration was 17.68 mg/L; both are well below the permit limits. Average effluent
COD was 255.2 mg/L. The conventional pollutants (in terms of both concentration and mass loading) are
summarized in Table 1 below. The average ammonia concentration was 0.46 mg/L and ranged from 0.07
mg/L to 2.67 mg/L. Average effluent glyphosate was 2.48 mg/L, with 0 mg/L of glyphosate being
Fact Sheet
NPDES NC0003719 Renewal
Page 1

discharged for nineteen months of the 36 month record. Average effluent fecal coliform count was
f
253/100 ml and average effluent chloride concentration was 0.09 mg/L.
Parameter Average Effluent Concentration Average Effluent Loading
(mg/L) (Ibs./day)
BOD5 9.64 66.97
COD 255.22 1784.92
TSS 17.68 366.03
Table 1. Effluent data for conventional parameters at the Monsanto -Fayetteville facility (1999-2000)
Effluent dissolved oxygen (DO) concentrations were always above 5 mg/L (the standard for class
C waters) with an average value of 8.18 mg/L. Average effluent flow was 0.95-MGD.
The OCPSF data indicates that all parameters were measured as non -detects except for metals
(chromium, copper, lead, nickel and zinc) and cyanide. Metals and cyanide were assessed for reasonable
potential to exceed the permit limits established by the OCPSF guidelines. See the section on reasonable
potential analysis, below, for more information.
A review of the results from the facility's quarterly chronic toxicity test indicates that Monsanto
has failed the test once during the permitting cycle (August 1999) but passed the subsequent test.
As of August of 1998, Monsanto has participated in the Middle Cape Fear River Basin Alliance,
a monitoring coalition. One of the monitoring stations is the USGS station above Lock and Dam #3
(#2105500), which corresponds with Monsanto's former downstream monitoring point. The Division
reviewed pH, dissolved oxygen, turbidity and conductivity data for the period spanning 9/1/2000 —
9/21/01. These data appear in Appendix D — Instream Monitoring Data. Of greatest concern was
turbidity and dissolved oxygen. The mean turbidity was 48.2 NTU, just below the state standard.
Dissolved oxygen levels were mostly above the state standard of 5.0 mg/L with the exception of some
occasional excursions during the summer months of 2001. Plots of these two data sets appear in
Appendix D.
Reasonable Potential Analysis:
OCPSF data from January 1997-November 1999 were reviewed to assess reasonable potential for
chromium, copper, lead, nickel, cyanide and zinc. The reasonable potential analysis indicated that the
effluent levels of all of the aforementioned parameters do not have the potential to exceed the limits
established through the OCPSF guidelines. The complete analysis results appear in Appendix B.
Correspondence.
Compliance Evaluation Inspections (CEI) performed by the Fayetteville Regional Office have
always described the Monsanto — Fayetteville facility as neat, clean and well operated. Satisfactory
ratings were assigned to all CEIs and Compliance Biomonitoring Inspections. The facility has received
two Notices of Violation (NOVs) and one Notice of Deficiency (NOD). One NOV was issued in 1996
for an ammonia nitrogen violation; the second was issued in 1997 for a total suspended solids (TSS)
violation. The NOD was issued for the toxicity test failure mentioned above (August 1999). Monsanto
has not experienced any further permit violations and effluent pollutant levels are typically well below
permit limits.
Fact Sheet
NPDES NC0003719 Renewal
Page 2

In November 1999, the Division issued an Authorization to Construct for the installation of a
200-gallon anhydrous ammonia tank with associated piping.
In February 2000, the Technical Assistance and Certification Unit assessed the facility as a Grade
3 Biological Water Pollution Control System.
PERMITTING STRATEGY
Waste Load Allocation (WLA).
The Division prepared the last WLA in 1993. The previous effluent limits were based on
guidelines and water quality standards. At the time, Monsanto was discharging from three outfalls.
Outfall 003 will be eliminated in this renewal at the request of the permittee. For the 1995 renewal of the
permit, the Division developed site -specific effluent limitations based on best professional judgement
(BPJ). These are described in the section entitled " Site -Specific BPJ," below.
Reasonable Potential Analysis (RPA).
The Division conducted EPA -recommended analyses to determine the reasonable potential for
toxicants to be discharged by this facility, based on over three years of data (January 1997 —November
1999). The Permittee has requested a reduction in monitoring frequency for the OCPSF scan and the
elimination of the effluent limits on the metals and cyanide. It is for this reason that a reasonable
potential analysis was performed. It should be noted that only the metals and cyanide were ever detected;
the remaining parameters appear as non -detects in the OCPSF scan reports. These parameters will have
their monitoring frequencies reduced to annual.
The results of the analysis suggest no reasonable potential for the facility to violate the effluent
limits for chromium, copper, cyanide, lead, nickel and zinc. However, since these parameters were
detected frequently in the OCPSF scans, the limits will remain in place while the monitoring frequency
will be reduced to semi-annually.
Site Specific BPJ
For the 1995 NPDES permit renewal, the Permits and Engineering Unit developed site -specific
BPJ limits for parameters not covered by the pesticide and OCPSF guidelines that were considered
pollutants of concern. A copy of a memo summarizing limits development is attached in Appendix A.
The review of the 1995 methodology follows. In addition to the parameters limited by this approach,
fecal coliform, total nitrogen, total phosphorus, glyphosate (the primary component of Roundup®), and
total residual chlorine were included as monitoring requirements since they were viewed to be pollutants
of concern. Instream and effluent monitoring for dissolved oxygen, temperature, and conductivity are
standard conditions for a large industrial facility.
A. BOD limit development
As in 1995, the BOD5 monthly average limit was developed using a combination of the
OCPSF guidelines (for Wellman and DuPont) and a calculated Best Available Technology
(BAT) allocation (for Monsanto). The same allocation was used for Monsanto since no
significant production or plant changes have occurred. The OCPSF allocation was adjusted to
account for a slight decrease in production at Wellman and DuPont. A spreadsheet in Appendix
A details the calculations for this allocation. The resulting limit is a monthly average of 191
lbs./day, slightly less than the limit of 200 lbs./day in the current permit.
Fact Sheet
NPDES NC0003719 Renewal
Page 3

In order to determine the daily maximum BOD5 limit, the Division looked at the long-term
relationship between monthly average BOD values and daily maximums. The 1995 permit used
a ratio of 2 to relate the two limits. An analysis of the 1999 effluent BOD values indicated an
average ratio of 1.9 between the two. The 1995 ratio of 2 therefore continues to be appropriate,
and the resulting daily maximum limit is 382 lbs./day, slightly less than the current permit limit of
400 lbs./day.
B. COD limit development
Although the federal pesticide guidelines provide technical based limits for COD, the OCPSF
guidelines do not. As a result, a site -specific BPJ limit for COD was developed in 1995. The
monthly average COD limit is based upon a 90% removal efficiency. The removal efficiencies
for COD are variable and at Monsanto, these efficiencies ranged from 93.88%-97.27%. A 90%
removal efficiency resulted in a maximum potential effluent COD of 4981 lb./day. This number
was rounded up to a monthly average COD limit of 5000 lb./day.
As with BOD, the average ratio between the monthly average and daily maximum COD was
calculated. In 1995, the highest ratio was used — 1.6. For this renewal, the 1999 data were
reviewed and indicated that the highest ratio was 1.86. Using this ratio would result in a higher
daily maximum limit than that in the current permit (8000 lbs./day), so the daily maximum limit
of 8000lbs./day shall be conserved to avoid backsliding.
C. NH3-N limit development
Neither the OCPSF nor the pesticide guidelines address ammonia -nitrogen. This parameter
is of concern because of ammonia can cause toxicity in the receiving stream and is an oxygen
consuming waste. This is particularly true in the summer, so two sets of limits— summer and
winter — were given for NH3-N.
The original Monsanto permit contained a limit of 23 lb./day (with a corresponding flow of
0.859 MGD) based on modeling done for the discharge. For the proposed expansion to 1.3 MGD
(in 1995), a limit corresponding to an equivalent mass to flow ratio (as the limit above) was
assigned. This limit is a monthly average of 35 lbs./day and a daily maximum of 70 lb./dayin the
summer. These limits are doubled in the winter months since dissolved oxygen is less of a
concern during that time of year. The Division believes that these limits are still appropriate.
D. OCPSF limits
The OCPSF limits for this permit renewal are based on the federal effluent guidelines for
OCPSF facilities and the combined OCPSF process flow from Wellman and DuPont. The
facility has requested a reduction in monitoring (currently quarterly) due to non -detection of most
parameters. The Division has deemed that it is appropriate to reduce the monitoring for all
OCPSF parameters except metals and cyanide (see section on Reasonable Potential Analysis,
above). The non -detected parameters shall now be monitored on an annual basis. The metals
and cyanide shall continue to be monitored on a quarterly basis.
E. TSS limit development
For the 1995 permit renewal, Monsanto proposed a reduction in the TSS monthly average
limit to 457 lb./day. Using the pesticide and OCPSF guidelines, a TSS limit was developed using
the highest production year data for all facilities (see spreadsheet in Appendix A). This limit
would be a monthly average of 153,136 lbs./day and a daily maximum of 518,719 lbs./day.
Fact Sheet
NPDES NC0003719 Renewal
Page 4

SUMMARY OF PROPOSED CHANGES
` In keeping with Division policies the following will be incorporated into the permit:
• Annual sampling frequency for all parameters in the OCPSF scan except metals and
cyanide.
• New BOD limits based upon changes in OCPSF flow at Wellman and DuPont
• Update description of treatment train
New Weekly Average and Daily Maximum limits are derived from the latest NC/EPA policies.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: October 3, 2001
Permit Scheduled to Issue: November 26, 2001
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please contact
Natalie Sierra at [phone] ext. 551.
NAME: DATE:
ENCLOSURES:
• DRAFT PERMIT
• APPENDIX A. DATA AND METHODOLOBY USED FOR PERMIT DEVELOPMENT
• APPENDIX B. REASONABLE POTENTIAL ANALYSIS
• APPENDIX C. FAYETTEVILLE REGIONAL OFFICE STAFF REPORT AND GKPR DATA
• APPENDIX D. INSTREAM MONITORING DATA AND PLOTS
REGIONAL OFFICE COMMENTS
NAME: DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NC0003719 Renewal
Page 5

APPENDIX A
DATA AND METHODOLOGIES USED FOR
PERMIT DEVELOPMENT
TECH -BASED EFFLUENT LIMITS SPREADSHEET
BOD5 MONTHLY AVERAGE/ DAILY MAXIMUM RATIO CALCULATION
COD LIMITS CALCULATION SPREADSHEET
COD MONTHLY AVERAGE/DAILY MAXIMUM RATIO CALCULATION
OCPSF LIMITS SPREADSHEET
WHOLE EFFLUENT TOXICITY DATA
EFFLUENT MONTHLY AVERAGE DATA (1998-2000)
VERIFICATION OF INSTREAM WASTE CONCENTRATION (IWC) SPREADSHEET
APRIL 10, 1995 MEMORANDUM DISCUSSING WASTELOAD ALLOCATION FOR
MONSANTO COMPANY (NC0003719)
Fact Sheet
NPDES NC0003719 Renewal
Page 6

Influent data for Monsanto (03719) renewal 9/10/01
Flows are monthly average
Date Wellman DuPont
Influent Flow Influent Flow
(MGD) (MGD)
Jan-97 0.252
Feb-97 0.23
Mar-97 0.227
Apr-97 0.19
May-97 0.199
Jun-97 0.198
Jul-97 0.212
Aug-97 0.132
Sep-97 0.216
Oct-97 0.215
Nov-97 0.224
Dec-97 0.261
Jan-98 0.002 0.258
Feb-98 0.002 0.272
Mar-98 0.002 0.29
Apr-98 0.028 0.281
May-98 0.003 0.24
Jun-98 0.003 0.193
Jul-98 0.003 0.237
Aug-98 0.003 0.228
Sep-98 0.003 0.219
Oct-98 0.003 0.183
Nov-98 0.003 0.184
Dec-98 0.004 0.184
Jan-99 0.002 0.248
Feb-99 0.002 0.186
Mar-99 0.002 0.179
Apr-99 0.002 0.177
May-99 0.002 0.165
Jun-99 0.002 0.163
JuI-99 0.002 0.19
Aug-99 0.002 0.93
Sep-99 0.002 0.241
Oct-99 0.002 0.184
Nov-99 0.002 0.143
Dec-99 0.002 0.173
Average 1997 0.213
Average 1998 0.0049 0.235
Average 1999 0.002 0.248
For OCPSF calcs, use 1997 flow from DuPont
and 1998 flow from Wellman for a total
of 0.2179 MGD
Highest production year for both facilities
was 1997, but influent flow data is
unavailable for Wellman
Use 1998 average for Wellman and
1997 average for DuPont
Daily max Monthly average
BOD5 1.97 0.738
(Ibs/day)
TSS 4.716
(Ibs/day)
1.476
Daily max Monthly average
BOD5 113.69 42.634
(Ibs/day)
TSS 230.935 71.057
(Ibs/day)
From 1995 renewal, Monsanto is allocated
as follows
Daily max Monthly average
BOD5 147.300
(Ibs/day)
The 1995 permit sums the monthly ave. BOD
from all three plants and multiplies
this number by 2.3 to get the daily max:
Total BOD Daily max Monthly ave
(Ibs/day) 454 191
Under the pesticide guidelines, Monsanto,
using 1998 (highest production year - 85,035,076 Ibs)
production data, gets the following allocation
Total TSS Daily max Monthly ave
(Ibs/day) 518714 153063
Total TSS allocation would be 153136
Daily max would be 518719
So these calculated values would lead to a
far higher daily max TSS and monthly ave. TSS
than is currently permitted

1999 effluent
BOD
lb/d
JAN AVE
109.2
maximum
ratio max/ave
198
1.82
FEB AVE
55.3
maximum
ratio max/ave
203
3.67
Mar Ave
69.1
maximum
ratio max/ave
123
1.78
Apr Avg
67.6
maximum
ratio max/ave
92
1.36
May Avg .'
70.6
maximum
ratio max/ave
129
1.83
Jun Avg
39.8
maximum
ratio max/ave
82
2.05
Jul Avg
57.0
maximum
ratio max/ave
89
2
Aug'Avg.
54.4
maximum
ratio max/ave
101
1.86
Sep Avg
46.4
maximum
ratio max/ave
Oct.. Ave.
maximum
ratio max/ave
78
1.69
77.6 I
131
1.69
NOV. AVG
76.9
maximum
ratio max/ave
152
1.98
Dec. Ave.
40.1
maximum
ratio max/ave
60
1.49
max ratio 3.67
ave. ratio 1.90

COD Calculations
Wellman
Influent COD
Date (lb/day)
Jan-98 126
Feb-98 219
Mar-98 264
Apr-98 5442
May-98 318
Jun-98 329
JuI-98 368
Aug-98 258
Sep-98 245
Oct-98 346
Nov-98 214
Dec-98 258
DuPont
Influent COD
(lb/day)
8428.00
9399.00
9814.00
10769.00
10000.00
6092.00
7611.00
8900.00
8082.00
7789.00
8055.00
8619.00
Monsanto
Influent COD
(lb/day)
33352
33763
35918
34207
30943
39236
37520
37560
40064
31407
38544
34886
Average
TOTAL
Total FFLUENT
Influent COD 90% R.E.
(lb/day) (lb/day)
41906.00 4190.60
43381.00 4338.10
45996.00 4599.60
50418.00 5041.80
41261.00 4126.10
45657.00 4565.70
45499.00 4549.90
46718.00 4671.80
48391.00 4839.10
39542.00 3954.20
46813.00 4681.30
43763.00 4376.30
44945.42
4494.54
1998 was used since data is available for all facilities and production was nearly as high as it was in 1997 for
all three facilities
The daily maximum in the 1995 renewal was calculated by multiplying the monthly average COD by 1.6
The 1999 ratio between monthly average and daily max was a maximum of 1.86.
The monthly average, as calculated above, rounds up to 4500 lb/day.
The daily maximum is therefore:
These numbers are slightly Tess than the 1995 limits of 5000 lb/day and 8000 lb/day
8370 lb/day

1999 effluent
COD
lb/d
JAN AVE
2502.18
maximum
ratio max/ave
4049.10
1.62
FEB AVE
1441.70
maximum
ratio max/ave
2676.00
1.86
Mar Ave
1362.69
maximum
ratio max/ave
1964.00
1.44
1104.72
maximum
ratio max/ave
1631.90
1.48
May, Avg
1266.30
maximum
ratio max/ave
un'Avg
maximum
ratio max/ave
1880.40
1.48
1513.29 I
1989.70
1.31
'Jul Avg'
2107.64
maximum
ratio max/ave
3147.30
1.49
g
1849.40
maximum
ratio max/ave
2590.60
1.40
Sep
2001.83
maximum
ratio max/ave
2863.40
1.43
Oct.. Ave.
1728.28
maximum
ratio max/ave
2328.60
1.35
NOV. AVG
1785.94
maximum
ratio max/ave
3205.33
1.79
Dec. Ave.
1105.59
maximum
ratio max/ave
1418.10
1.28
max ratio
186
ave ratio
0

FACILITY => Monsanto Corp.
NPDES Permit 8 => NC0003719
OCPSF Flow =>: 0.22 MGD
Qp => 1.25 MGD
WS Class 7 no
7Q10s=>? 791 cfs
'Average Strean Flow =>. 798 cfs
OCPSF Subpart I Calculations
ver 2.00
MDM & SDP
1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17
OCI'SF OCPSP OCPSI' OCPSF Federal Standard Human Water Carcinogen? min Water Qual OCPSF find min. Monthly
Daily Monthly Daily Monthly Criteria or Aquatic Health Consumption criteria Allowable Daily Daily Average
Maximum Average Maximum Average State Life Standard Standard Load Maximum Limit Maximum Limit
Parameter pith pg/L Ibs/day lbs/day Standard pg/L µg/L }rg/l, µg/L Ibs/day lbs/day Rased On: Limit . lbs/day.
Acenaphthcne 59 22 0.107 0.040 FC none 2700 1200 no 2,700.00 11519.59 0.107 0.107 OCPSF 0.107 Ibs/day 0.040
Acenaphthylene 59 22 0.107 0.040 FC none none none no none none 0.107 0.107 OCPSF 0.107 Ibs/day 0.040
Acrylonitrile 242 96 0.440 0.174 FC none 0.66 0.059 yes 0.660 2.84 0.440 0.440 OCPSF 0.440 Ibs/day 0.174
Anthracene 59 22 0.107 0.040 FC none 110000 9600 no 110,000.00 469316.69 0.107 0.107 OCPSF 0.107 lbs/day 0.040
Benzene 136 37 0.247 0.067 SS none 71.4 1.2 yes 71.400 307.32 0.247 0.247 OCPSF 0.247 lbs/day 0.067
Benzo(a)anthracene 59 22 0.107 0.040 FC none 0.031 0.0028 yes 0.031 0.13 0.107 0.107 OCPSF 0.107 Ibs/day 0.040
3,4-Benzofluoranthene 61 23 0.111 0.042 FC none 0.031 0.0028 yes 0.031 0.13 0.111 0.111 OCPSF 0.111 Ibs/day 0.042
Benzo(k)ftuoranthene 59 22 0.107 0.040 FC none 0.031 0.0028 yes 0.031 0.13 0.107 0.107 OCPSF 0.107 Ibs/day 0.040
Benzo(a)pyrene 61 23 0.111 0.042 FC none 0.031 0.0028 yes 0.031 0.13 0.111 0.111 OCPSF 0.111 Ibs/day 0.042
Bis(2-ethylhexyl) phthal: 279 103 0.507 0.187 FC none 5.9 1.8 yes 5.900 25.39 0.507 0.507 OCPSF 0.507 Ibs/day 0.187
Carbon Tetrachloride 38 18 0.069 0.033 SS none 4.42 0.254 yes 4.420 19.02 0.069 0.069 OCPSF 0.069 Ibs/day 0.033
'Chlorobenzene 28 15 0.051 0.027 FC none 21000 488 no 21,000.00 89596.82 0.051 0.051 OCPSF 0.051 Ibs/day 0.027
Chloroethane 268 104 0.487 0.189 FC none none none no none none 0.487 0.487 OCPSF 0.487 lbs/day 0.189
Chloroform 46 21 0.084 0.038 SS none 470 5.7 yes 470.00 2022.9G 0.084 0.084 OCPSF 0.084 Ibs/day 0.038
2-Chlorophenol 98 31 0.178 0.056 PC none 400 120 no 400.00 1706.61 0.178 0.178 OCPSF 0.178 lbs/day 0.056
Chrysene 59 22 0.107 0.040 FC none 0.031 0.0028 yes 0.031 0.13 0.107 0.107 OCPSF 0.107 lbs/day 0.040
Di-n-butyl phthalate 57 27 0.104 0.049 FC none 12000 2700 no 12,000 51198.18 0.104 0.104 OCPSF 0.104 lbs/day 0.049
1,2-Dichlorobenzene 163 77 0.296 0.140 FC none 17000 2700 no 17,000 72530.76 0.296 0.296 OCPSF 0.296 lbs/day 0.140
1,3-➢ichlorobenzene 44 31 0.080 0.056 FC none 2600 400 no 2,600.00 11092.94 0.080 0.080 OCPSF 0.080 lbs/day 0.056
1,4-Dichlorobenzene 28 15 0.051 0.027 FC none 2600 400 no 2,600.00 11092.94 0.051 0.051 OCPSF 0.051 lbs/day 0.027
1,1-Dichloroethane 59 22 0.107 0.040 FC none none none no none none 0.107 0.107 OCPSF 0.107 lbs/day 0.040
1,2-Dichloroethane 211 68 0.383 0.124 FC none 99 0.38 yes 99.00 426.11 0.383 0.383 OCPSF 0.383 lbs/day 0.124
j 1,1-Dicliloroethylene 25 16 0.045 0.029 FC none 3.2 0.057 yes 3.20 13.77 0.045 0.045 OCPSF 0.045 lbs/day 0.029,
1,2•trans-Dichloroethylei 54 21 0.098 0.038 FC none 140000 700 no 140,000.00 597312.15 0.098 0.098 OCPSF 0.098 lbs/day 0.038,
2,4-Dichlorophenol 112 39 0.204 0.071 FC none 790 93 no 790.00 3370.55 0.204 0.204 OCPSF 0.204 lbs/day 0.071
1,2-Dichloropropane 230 153 0.418 0.278 FC none 39 0.52 no 39.00 166.39 0.418 0.418 OCPSF 0.418 lbs/day 0.278'
1,3-Dichloropropylene 44 29 0.080 0.053 FC none 1700 10 no 1,700 7253.08 0.080 0.080 OCPSF 0.080 Ibs/day 0.053
Diethyl phthalate 203 81 0.369 0.147 PC none 120000 23000 no 120,000 511981.84 0.369 0.369 OCPSF 0.369 Ibs/day 0.147'
'2,4-Dimethylphenol 36 18 0.065 0.033 FC none 2300 540 no 2,300 9812.99 0.065 0.065 OCPSF 0.065 lbs/day 0.033
Di methyl phthalate 47 19 0.085 0.035 FC none 2900000 313000 no 2,900,000 12372894.44 0.085 0.085 OCPSF 0.085 lbs/day 0.035
�i4,6-Dinitro•o-cresol 277 78 0.503 0.142 FC none 765 13.4 no 765.00 3263.88 0.503 0.503 OCPSF 0.503 lbs/day 0.142
2,4-Dinitrophenol 123 71 0.224 0.129 FC none 14000 70 no 14,000.00 59731.21 0.224 0.224 OCPSF 0.224 lbs/day 0.129
2,4-Dinitrotoluene 285 113 0.518 0.205 FC none 9.1 0.11 yes 9.10 39.17 0.518 0.518 OCPSF 0.518 lbs/day 0.205
2,6-Dinitrotoluene 641 255 1.165 0.463 FC none none none no none none 1.165 1.165 OCPSF 1.165 lbs/day 0.463
Ethylbenzene 108 32 0.196 0.058 FC 325 29000 none no 325.00 1386.62 0.196 0.196 OCPSF 0.196 Ibs/day 0.058
Fluoranthene 68 25 0.124 0.045 FC none 370 300 no 370.00 1578.61 0.124 0.124 OCPSF 0.124 lbs/day 0.045
Fluorene 59 22 0.107 0.040 PC none 14000 1300 no 14,000.00 59731.21 0.107 0.107 OCPSF 0.107 Ibs/day 0.040
'Hexachlorobenzene 28 15 0.051 0.027 FC none 0.00077 0.00075 yes 0.001 0.003 0.051 0.003 CFIRONIC 0.318 ug/L
Hexachlorobutadiene 49 20 0.089 0.036 SS none 49.7 0.44 yes 49.70 213.92 0.089 0.089 OCPSF 0.089 Ibs/day 0.036
Hexachloreethanc 54 21 0.098 0.038 FC none 8.9 1.9 yes 8.90 38.31 0.098 0.098 OCPSF 0.098 Ibs/day 0.038
Methyl Chloride 190 86 0.345 0.156 FC none none none no none none 0.395 0.345 OCPSF 0.345 lbs/day 0.156
Methylene Chloride 89 40 0.162 0.073 FC none 1600 4.7 yes 1,600.00 6886.69 0.162 0.162 OCPSF 0.162 lbs/day 0.073
Naphthalene 59 22 0.107 0.040 FC none none none no none none 0.107 0.107 OCPSF 0.107 lbs/day 0.040
Nitrobenzene 68 27 0.124 0.049 FC none 1900 17 no 1,900.00 8106.38 0.124 0.124 OCPSF 0.124 lbs/day 0.049
2-Nitrophenol 69 41 0.125 0.075 FC none none none no none none 0.125 0.125 OCPSF 0.125 lbs/day 0.075
4-Nitrophenol 124 72 0.225 0.131 PC none none none no none none 0.225 0.225 OCPSF 0.225 Ibs/day 0.131
:Phenanthrcnc 59 22 0.107 0.040 FC none none none no none none 0.107 0.107 OCPSF 0.107 Ibs/day 0.0401
Phenol 26 15 0.047 0.027 FC none 4600000 21000 no 4,600,000 19625970.48 0.047 0.047 OCPSF 0.047 Ibs/day 0.027i
•Pyrene 67 25 0.122 0.045 FC none 11000 960 no 11,000 46931.67 0.122 0.122 OCPSF 0.122 Ibs/day 0.0451
9/17/01

Parameter
Tetrachloroethylene
Toluene
Total Chromium
Total Copper
Total Cyanide
Total Lead
Total Nickel
Total Zinc •
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Vinyl Chloride
Column Calcs:
1
2
3
4
5, 6, 7, 8, 9
10
11
12
13
14
15
16
17
OCPSF OCPSF OCPSF OCPSF Federal Standard
Daily Monthly Daily Monthly Criteria or Aquatic
Maximum Average Maximum Average State Life
µg/L 1tg/L Ibs/day Ibs/day Standard pg/L
56 22 0.102 0.040 SS none
80 26 0.145 0.047 SS 11
2770 1110 5.034 2.017 SS 60
3380 1450 6.142 2.635 SS -AL 7
1200 420 2.181 0.763 SS 5
690 320 1.254 0.582 SS 25
3980 1890 7.233 3.071 SS 88
2610 1050 4.743 1.908 SS -AL 50
140 68 0.254 0.124 FC none
54 21 0.098 0.038 FC none
54 21 0.098 0.038 FC none .
54 21 0.098 0.038 FC none
268 104 0.987 0.189 SS none
OCPSF Suboarfl Calculations
Human Water Carcinogen? nun Water Qual OCPSF find main. Monthly
Health Consumption criteria Allowable Daily Daily Average
Standard Standard Load Maximum Limit Maximum Limit
IL'L p€/L ltg/L lbsiday lbs/day Based On: Limit Ihs/day
8.85 0.8 yes 8.85 38.09 0.102 0.102 OCPSF 0.102 lbs/day 0.040
200000 6800 no 11.00 46.93 0.145 0.145 OCPSF 0.145 lbs/day 0.047
none none no 50.00 213.33 5.034 5.034 OCPSF 5.034 lbs/day 2.017
none 1300 no 7.00 29.87 6.142 6.142 OCPSF 6.142 lbs/day 2.635
220000 700 no 5.00 21.33 2.181 2.181 OCPSF 2.181 lbs/day 0.763
none none no 25.00 106.66 1.254 1.254 OCPSF 1.254 Ibs/day 0.582
4600 25 no 88.00 375.45 7.233 7.233 OCPSF 7.233 Ibs/day 3.071
none none no 50.00 213.33 4.743 4.743 OCPSF 4.743 lbs/day 1.908
940 260 no 990.00 4010.52 0.254 0.254 OCPSF 0.254 lbs/day 0.124
none none no none none 0.098 0.098 OCPSF 0.098 Ibs/day 0.038
42 0.6 yes 42.00 180.78 0.098 0.098 OCPSF 0.098 Ibs/day 0.038
81 2.7 yes 81.00 348.64 0.098 0.098 OCPSF 0.098 Ibs/day 0.038
525 2 yes 525.00 2259.69 0.487 0.487 OCPSF 0.487 lbs//d: 0.189
OCPSF Guidelines (see 40 CFR 414.90)
OCPSF Guidelines (see 40 CFR 414.90)
col 1 * OCPSF Flow * 8.34/1000
col 2 * OCPSF Flow * 8.34/1000
from Fed /state water quality standards
if WS class then find minimum of col 6, 7, & 8. Otherwise find minimum of col 6 & 7
if parameter is a carcinogen then all load = 8.34 * Qavg* col 10 /1000. Otherwise all load = 8.34 * 7Q10 * col 10 /100C
copy of column 3
find minimum of col 11 and 12.
note which load is lower.
if limit is not based on OCPSF guidelines then calculate concentration based on Qp. Otherwise copy OCPSF loaf
if limit is not based on OCPSF guidelines then use units of'ug/I'. Otherwise use Ids/day'
if limit is not based on OCPSF guidelines then leave balnk. Otherwise copy OCPSF limits from col. 4
9/17/01

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
May 16, 20tf1
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Monsanto/001,002 Penn 24hr p/f ac lim: 90% Ilhd (combined outfall) Y 1997 - Pau - - Pass - Pass
NC0003719/002 Begin:1/I/1996 Frequency: Q P/F + Feb May Aug Nov NonComp:Single 1998 - Pass - - Pass - - Pass
County: Cumberland Region: FRO Subbasin: CPFIS 1009 - Pass - - Late Pass - Fait
PF: 1.3 Special 2000 - Pass - - Pass - - Pass
7Q10; 791.0 IWC(%)0.25 order. 2001 - Pass
Pass,Pass
Pass
Pass
Pass
Pass
Moore County WWTP Penn chr lim: 41 % Y 1997 - - Pass - - Pass - - Pass - - Late
NC0037508/001 Begin:6/1/2000 Frequency: Q Mar Jun Sep Dec + NonComp:Single 1998 Pass - Pass - - Pass - Pass -- -- Pass
County: Moore Region: FRO Subbasin: LUMSU 1999 -- - Pass - Pass -- Late Pass Pass
PF: 6.7 Special 2000 - - Passsig - - Pass - -- Pass -. Pass
7Q10: 15.2 IWC(%):40.54 Order: 2001 - - Pass
Mooresville WWTP Penn chr lim: 90% (New perm 3/12001) Y 1997 - Pass - - Pass - Pass - Pass
NC0046728/001 Begin: I I/1/1994 Frequency: Q P/F + Feb May Aug Nov NonComp:SINGLE 1998 - Pass - - Pass -- -- Pass -- -- Pass
County Iredell Region: MRO Subbasin: YADI 1 1999 - Pass - - Pass -- Fail Fail Pass Pass
PF: 5.2 Special 2000 - Pass - - Pass - - Fail >100 >100 Pass
7Q10: 0.5 IWC(%):94.15 Order. 2001 - Pass -
Morehead City WWTP PERM 24HR AC P/F LIM: 90% MYSID (New perm 4/1/2001) 1997 - Pass - >100 Pass - -- Pass -• Fail
NC0026611/001 Begin:5/I/1993 Frequency: Q + Feb May Aug Nov NonComp:SINGLE 1998 Fail Pass -- - Pass Fail Pass -- Pass
County. Carteret Region: WIRO Subbasin: WOK03 1999 - Pau - - Pass -- -- Pass - -- Ell
PF: 1.7 Special 2000 - Pass -• -- Pass -- -- Fail Pass -- Pass
7Q10: TIDAL IWC(%):NA order. 2001 -- Pass
Fail
Morganton Penn chr lim: 9%; if pf 10.5 chr lim 12%; if pf 13 chr lim 15% 1997 Pass - Fail Pass Pass Pass
NC0026573/00I Begin:2/I/1995 Frequency: Q P/F + Jan Apr Jul Oct NonComp:Single 1998 Pass - - Pass -- -- Pass -- --. Fail.Pass
County: Burke Region: ARO Subbasin: CTB3I 1999 Pass - - Pass - - Pass --- Pass
PF: 8.0 Special 2000 Pass - - Pass - Pass -- -- Pass
7Q10: 126 IWC(%):8.96 Order: 2001 Fail >18 18.4
Motiva Enterprises -Paw Creek Perm 24hr LC50 ac monis epis flhd (grab) 1997 - - -
NC0022187/001 Begin:9/1/1996 Frequency: A NonComp: 1998 - - -
County. Mecklenburg Region MRO Subbasin: CT834 1999 - - Pass
PF: NA Special 2000 86.1 - -
7Q10:0.0 IWC(%):I00 Orden 2001 -- - >100sig
Pass
>100 - - -' -
>700 - - - - - -
ML Airy WWTP Pam chr lim: 42%
NC0021121/001 Begim2/12000 Frequency: Q P/F Jan Apr Jul Oct
County. Sury Region WSRO Subbasin: YADO3
PF: 7.0 Special
7Q10: 14.9 IWC(%):42.0 Order:
+ NonComp:Single
Y 1997 Pass - - Fail Pass - Pass - -- Pass
1998 Fail Pass - Pass - - Pass - - Pass
1999 Pass - - Pass - - Pass -- - Pass
2000 Pass - - Pass - - Pass - Pass
2001 Fail,Pass 72.8 72.7
Mt. Gilead war I F Perm chr lim: 3.25E
N00021105/001 Begin:3/12000 Frequency: Q Mar Jun Sep Dec
County Montgomery Region: FRO Subbasin: YADIO
PF: 0.85 Special
7Q10: 40 IWC(%)3.2 Order:
+ NonComp:Single
1997 -
1998 -
1999 -
2000 -
2001 -
- Pass - - Fed Pass - Pass - Pass
- Fail Late Fail. Late Pass - Pass,Pass - - Pass
- Pass - - - - Late Pass -- Pass
- Pass - - NR Pass -- H Pass Passsig
- NR
Mt. Holly WWTP Penn ehr lam: 6% 1997 - Pass - - Pass - - Pass - - Pass
NC002I 156/001 Begin:9/1/1996 Frequency: Q P/F + Feb May Aug Nov NonComp:Single 1998 - Pass - - Pass - -- Late Pass - Pass
County: Gaston Region: MRO Subbasin: CTB33 1999 - Pass - - Pass - Pass -- - Pass
PF: 4.0 Special 2000 - Pass - Pass -- -- Pass --- Pass
7Q10: 95.0 IWC(%):6.0 Orden 2001 - Pass -
ML Olive Pickle P-2 perm chr monil (100, 75, 50,25, 12.5, 6.25) Y 1997 8.84 - - 8.84 8.84 35.38
NC000l074/00I Begin:2/1/1996 Frequency: Q Jan Apr Jul Oct NonComp: 1998 17.68 - - 8.83 - -- 17.67 -- 8.84
County: Wayne Region: WARO Subbasin: CPF21 1999 35.4 - - 17.68 - -- 884 - - 35.4
PF: 0.40 Special 2030 8.84 - - 35.4 -- -- NR/Late 38.43 - 35.4
7010: 0.0 IWC(%):100 Order 2001 17.7 - -
Mt. Olive WWTP Perm chr lim: 90% 1997 - - Pass - - Pass - Late Fall Pass Pass
NC0020575/001 Begin:9/1/1996 Frequency: Q P/F + Mar Jun Sep Dec NonComp:Single 1998 - - Pass - - Pass - - Fail FeII,Fail >100 Pass
County, Wayne Region: WARO Subbasin: CPF2I 1999 - - Lata Pass -- Pass - - Pass - -- late
PF: 1.0 Special 2000 Pass - Pass - - Pass - - Pass - - Pass
7Q10: 0.0 IWC(%):100 Order. 2001 - - Pass
Y Pre 1997 Data Available
LEGEND:
PERM = Permit Requirement LET - Administrative Letter - Target Frequency = Monitoring frequency: Q- Quarterly; M. Monthly; BM- Bimonthly, SA- Semiannually, A- Annually, OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7Q10 e. Receiving stream low Bow criterion (cfs) += quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. San, Apr, Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IWC%= lnstream waste concentration P/F = Pass/Fail test AC = Acute CHR = Chronic
Data Notation: f- Fathead Minnow; • - Ceriodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test
Reporting Notation: - = Data not required; NR - Not reported Facility Activity Status: I - Inactive, N - Newly lssued(To construct); H - Active but not discharging; t-Mote data available for month in question; • = ORC signature needed
32

DATE
Jan-98
Feb-98
Mar-98
Apr-98
May-98
Jun-98
Ju1-98
Aug-98
Sep-98
Oct-98
Nov-98
Dec-98
Jan-99
Feb-99
Mar-99
Apr-99
May-99
Jun-99
JuI-99
Aug-99
Sep-99
Oct-99
Nov-99
Dec-99
Jan-00
Feb-00
Mar-00
Apr-00
May-00
Jun-00
Jul-00
Aug-00
Sep-00
Oct-00
Nov-00
Dec-00
AVERAGE
EFFLUENT MONTHLY AVERAGES
BOD
ppm
21.75
13.17
15.77
13.23
9.00
10.77
13.83
13.00
13.23
8.38
5.82
10
11.25
6.17
9.00
7.90
9.78
5.21
6.92
7.38
5.38
10.55
10.23
5.21
9.46
16.67
7.14
4.1)8
4.08
8.07
5.38
8.50
5.69
6.64
8.77
19.58
9.64
COD
ppm
280.83
264.00
317.00
262.54
150.23
227.85
305.62
460.92
481.85
328.08
319.46
373
258.25
164.92
178.47
136.58
164.58
197.07
251.08
242.31
241.00
249.15
237.54
143.07
259.62
399.92
282.57
155.17
155.46
193.43
155.77
155.75
153.08
258.36
404.00
380.00
255.22 ..
TSS
ppm
17.42
24.50
32.92
31.54
19.00
12.77
9.69
25.31
23.15
12.69
12.92
18
21.92
18.42
24.73
14.17
19.83
14.57
8.08
7.08
11.15
8,46
9.92
8.00
17.69
26.75
25.57
18.33
17.69
7.50
14.31
18.17
21.38
15.36
25.31
22.50
17.68
NH3
ppm
0.07
0.07
0.07
0.10
0.07
0.37
3.06
11.18
0.07
0.41
0.12
0.12
0.09
0.08
0.07
0.11
0.47
0.11
0.12
1.49
0.14
0.24
0.31
0.14
0.14
0.62
0.24
0.18
0.37
2.16
1.10
2.67
0.43
0.14
0.16
0.19
0.46
GLY
ppm
5.00
1.50
20.50
0.50
0.00
3.50
2.50
0.50
1.00
0.00
0.00
0.25
23.50
0.50
4.50
0.00
0.00
0.00
0.50
0.06
0.00
0.00
1.00
0.00
0.00
18.00
0.00
0,1)0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.00
2.48
Fecals CI p11 1)0 Temp.
(#/100 ml) ppm ppm j C
310.00 0.12 7.64 11.18 16.00
161.00 0.14 7.48 10.03 16.03
269.00 0.14 7.61 9.54 17.44
517.00 0.14 7.66 9.48 20.88
225.00 0.14 7.86 8.78 24.65
72.00 0.10 7.76 8.19 27.48
236.00 0.11 7.62 7.74 28.59
246.00 0.13 7.46 8.13 27.12
187.00 0.08 7.16 8.53 26.82
44.00 0.10 7.68 8.77 23.00
54.00 0.08 7.62 7.74 20.57
45 0.03 7.53 7.93 18.7
220.33 0.06 7.48 9.55 17.40
196.42 0.07 7.54 9.07 16.73
78.13 0.10 7.65 8.08 16.90
138.67 0.10 7.75 7.04 20.00
223.17 0.08 7.38 7.34 22.98
295.43 0.08 7.45 7.08 25.63
537.69 0.08 7.59 5.56 28.15
664.46 0.08 7.56 6.81 27.77
231.08 0.09 7.33 7.29 24.76
268.31 0.09 7.30 8.18 20.45
198.85 0.10 7.20 9.13 21.02
131.71 0.11 7.46 9.70 17.11
70.92 0.10 0.10 7.57 9.77
667.25 0.10 0.10 7.39 9.13
387.36 0.10 0.10 7.45 8.34
257.83 0.09 0.09 7.32 6.71
126.15 0.07 7.46 7.20 23.10
430.79 0.06 7.11 7.27 26.49
144.69 0.07 7.65 7.04 26.35
174.50 0.07 7.15 6.76 24.52
69.77 0.08 7.73 8.06 24.58
143.15 0.10 7.53 9.06 21.60
605.00 0.11 7.50 8.96 17.93
485.90 0.12 7.37 9.43 12.89
253.15 0.09 6.69 8.18 20.49
Eft'. flow
MGD
1.05
1.07
1.08
1.06
(1.92
0.97
0.98
1.04
1.09
0.86
0.96
0.995
1.13
1.05
0.93
0.95
0.93
0.94
0.96
0.92
1.04
0.85
0.89
0.93
0.93
1.02
0.99
0.94
0.98
0.88
0.77
0.60
0.96
0.84
0.85
0.70
0,9

EFFLUENT MONTHLY AVERAGES
Eff. flow BOD COD TSS NH3 GLY DATE
MGD Ib/d Ib/d lb/d lb/d Ib/d
1.05 192.64 2497.47 154.31 0.62 45.95 Jan-98
1.07 121.29 2422.08 225.23 0.65 13.09 Feb-98
1.08 139.03 2802.30 299.79 0.62 168.75 Mar-98
1.06 116.33 2339.07 279.64 0.89 4.36 Apr-98
0.92 70.14 1159.26 146.87 0.54 0.00 May-98
0.97 85.22 1838.97 102.15 2.90 34.06 Jun-98
0.98 102.70 2447.70 76.07 16.80 19.31 Jul-98
1.04 110.18 3900.33 212.22 1.50 4.55 Aug-98
1.09 119.33 4378.09 215.12 0.64 8.94 Sep-98
0.86 61.73 2280.82 91.66 3.02 0.00 Oct-98
0.96 46.50 2575.98 103.58 0.99 0.00 Nov-98
0.995 84.3 3,096.8 148.3 1.0 23 Dec-98
1.13 109.22 2502.18 215.24 0.86 233.03 Jan-99
1.05 55.29 1441.70 162.93 0.71 3.95 Feb-99
0.93 69.08 1362.69 185.79 0.54 29.87 Mar-99
0.95 67.63 1104.72 118.67 0.87 0.00 Apr-99
0.93 70.61 1266.30 154.13 3.84 0.00 May-99
0.94 39.77 1513.29 116.18 0.78 0.00 Jun-99
0.96 57.00 2107.64 68.75 1.00 4.85 Jul-99
0.92 54.35 1849.40 51.48 10.97 0.40 Aug-99
1.04 46.38 2001.83 92.34 1.19 0.00 Sep-99
0.85 77.58 1728.28 60.92 1.74 0.00 Oct-99
0.89 76.91 1785.94 73.79 2.21 5.94 Nov-99
0.93 40.11 1105.59 60.96 1.09 0.00 Dec-99
0.93 1.02 82.70 2258.84 154.96 1.18 Jan-00
1.02 0.99 141.74 3382.37 225.06 5.12 Feb-00
0.99 0.94 56.58 2206.62 195.10 1.90 Mar-00
0.94 0.77 25.38 966.55 115.00 1.04 Apr-00
0.98 32.80 1258.64 142.78 3.02 0.00 May-00
0.88 55.94 1371.95 52.68 11.79 0.00 Jun-00
0.77 3.00 975.75 89.11 6.53 0.00 JuI-00
0.60 41.51 822.21 94.66 14.27 0.00 Aug-00
0.96 45.60 1229.69 162.29 3.23 0.00 Sep-00
0.84 47.01 1821.55 108.43 0.99 0.00 Oct-00
0.85 61.75 2776.15 168.89 1.12 0.00 Nov-00
0.70 106.35 2186.29 127.56 1.04 37.18 Dec-00
0.95 66.97 1784.92 366.03 21.89 17.38 l AVERAGE

IWC Calculations
Monsanto Company
NC0003719
Prepared By: Natalie Sierra, NPDES Unit
Enter Design Flow (MGD):
Enter s7Q10(cfs):
Enter w7Q10 (cfs):
1.25
791
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (U
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
(If DF >331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF)
NPDES Servor/Current Versions/IWC
791
1.25
1.9375
17.0
0
0.24
6957
Ammonia (NH3 as N)
(summer)
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
Ammonia (NH3 as N)
(winter)
7Q10 (CFS)
Not Required DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
409.26 UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
791
1.25
1.9375
1.0
0.22
0.24
319.4
1.25
1.9375
1.8
0.22
100.00
1.8
9/20/01

DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
April 10, 1995
MEMORANDUM
TO: Carla Sanderson
THROUGH: Dave Goodrich
FROM: Jeanette Powell
SUBJECT: NC0003719
Monsanto Company
Waste Load Allocation Request
The enclosed information outlines the methods and procedures used to determine NPDES
permit limits for Monsanto Company under their proposed flow expansion. Limits
indicated are summer limits and winter limits will be double the summer value. In
reviewing the following information, keep in mind that the Monsanto wastewater
treatment plant has several waste stream components, including wastewater from two
other facilities: ICI and Wellman. The data considered cover a study period from April
1993 to May 1994, which was identified as a "representative period" by the company.
Note that the month of March 1994 encompassed a plant upset.
The NPDES group would like to request a meeting to discuss this wasteload allocation
request prior to the scheduled April 19, 1995 site visit.
1. BOD5 Limits
The BOD5 limits were determined using a combination of calculated BAT limits for the
Monsanto wastestream and the OCPSF effluent guidelines (40 CFR 414) for the Wellman
and ICI wastestreams. This approach began with a preliminary review of the submitted
wastestream data which revealed no correlation between BOD5, production, or flow.
Therefore, calculation of BAT limits was based on the removal efficiency of the
wastewater treatment plant, OCPSF guidelines, and an assumed linear relationship
between mass and production. The BOD5 loading from domestic waste, estimated at 2
lb/day, is considered to be negligible for purposes of calculating monthly average and
daily maximum limits.
A. Monthly Average
The Monsanto portion of the wastestream consists of two discrete components: The main
process stream (Monsanto Tech) and centrifuge spent wash (CSW). There is no direct
BOD5 data provided in the engineering proposal for either component, but COD and flow
are reported for each. The CSW discharges through a SBR, for which specific
CODBOD5 relationships were provided by the facility. Therefore, `the influent BOD5

loading from the CSW was determined using the average monthly COD data provided in
the Yearly Influent Summary and the relationship Influent BOD5 = Outlet COD * 0.1225,
which was provided by the facility.
The influent BOD5 loading for the Monsanto Tech wastestream was determined using the
average monthly mass balance data provided in the NPDES permit application. The flow
diagram (Existing Fayetteville Waste Treatment System) provided in the application
indicates that BOD5 samples collected at the chem lift station (indicated as A. Chem Lift)
consist of combined Monsanto Tech and Wellman flow components. Since BOD5 data
was provided for the Wellman flow component, the Monsanto Tech BOD5 was calculated
by subtraction of the monthly average Wellman Chemical BOD5 from the Chem Lift
BOD5.
Using the data provided in the Engineering Proposal for NPDES Permit Application, the
computed BOD5 influent for Monsanto, and BOD5 data provided for ICI and Wellman, a
spreadsheet was created which computed the actual monthly removal efficiency of the
wastewater treatment plant. Excluding the month of March 1994, when a plant upset
occurred, the actual removal efficiency for each month in the study period was in excess
of 99% (March 1994 had a 89.9% removal efficiency).
An assumed linear relationship between mass and production was applied to determine
the total predicted Monsanto influent BOD5 by summing the Monsanto Tech and CSW
influent BOD5, multiplying by the proposed maximum production (6182000 pounds per
month) and dividing by the actual monthly production. The maximum monthly BOD5
influent is computed to be 14733 lb/day. Holding the wastewater treatment plant BOD5
removal efficiency at 99%, the maximum Monsanto BOD5 monthly average is then
computed to be 147.3 lb/day.
The monthly average BOD5 is then determined by summing the computed monthly
average BOD5 from Monsanto, Wellman and ICI. Wellman and ICI are subject to the
OCPSF guidelines (40 CFR 414, Subparts C and D, respectively), which were used to
calculate the monthly average BOD5 component for each facility. Wellman and ICI
monthly average BOD5 is 0.751b/day and 52.041b/day, respectively. Therefore, the
cumulative monthly average BOD5 is 2001b/day.
As detailed in the March 20, 1995 memo from Dave Goodrich to Steve Tedder regarding
proposed limits for Monsanto WWTP expansion, other options investigated for
determining monthly average BOD5 included, but are not limited to, the following:
Assuming a BOD5 removal efficiency of 99%, an increase in Monsanto's production
by 50%, and an increase in ICI's flow by 30%, the predicted BOD5 mass loading to be
discharged was computed. This loading ranges from 99.16 lb/day to 207.74 lb/day.
Based on this computation, BAT was determined to be 207.74 lb/day which is similar
to the 200 lb/day BOD5 limit based on application of the guidelines for the OCPSF
flow and the calculated BAT for Monsanto's contribution to the discharge.
B. Daily Maximum
Data from DMR's for the months corresponding to the study period of April 1993 through
May 1994 were used to determine the actual ratio of the daily maximum to the monthly
Page 2 of 4

1°P
)6119
P) ()(flA
plifiva/y)
p5-)
ric7c
jeigcD7
G l� 1-(L h L. I, CC "7) k6'4 mr30(cy
2
`alp
a5,
ac 17 y�� � / Lr7
1 L-1') / )
2U) L o) ---7c
1ng) la�1��cv

average BOD5. The highest ratio is 2.3, as is shown on the attached effluent ratio table.
This ratio is employed as a multiplier for the monthly average of 2001b/day to determine
the BOD5 daily maximum limit of 4601b/day.
Other options investigated for determining daily maximum BOD5 included the following:
(i)
The Monsanto BOD5 influent was determined as in the monthly average
calculations, with the exception of using the high monthly BOD5 for Well
Chem and Chem Lift instead of the monthly average used previously. The
CSW component was still based on monthly average values since the Yearly
Influent Summary does not provide high monthly COD for Monsanto CSW.
The daily maximum effluent BOD5 for Wellman and ICI is calculated using the
applicable effluent guidelines. Holding the 99% removal efficiency applied in
the monthly average calculations, the total effluent BOD5 at 99% removal
ranges from 252.01 lb/day to 903.77 lb/day. Therefore, the daily maximum
BOD5 would be rounded down to 900 lb/day. This method of calculation was
not used as the effluent information applied was based on monthly averages.
This underestimated removal efficiencies.
(ii) Assuming that the effluent guidelines in 40 CFR 455.22 (pesticide
manufacturing) are directly applicable to Monsanto, who is exempted from
these guidelines, the guideline ratio of 4.625 (monthly average/daily maximum)
was applied to the Monsanto component of the monthly average BOD5 (147.21
lb/day). The ratio of 2.6 (monthly average/daily maximum) in the OCPSF
effluent guidelines was applied to the monthly average BOD5 from ICI and
Wellman (52.79 lb/day). The application of the monthly average/daily
maximum ratios in the effluent guidelines results in a total BOD5 daily
maximum of 822 lb/day which would be rounded down to 800 lb/day. This
approach was abandoned since it would be inconsistent to consider the guideline
allotment for Monsanto's contribution to the discharge.
2. COD Limits
The monthly average COD limit is based upon a 90% removal efficiency. This assumed
removal efficiency is significantly lower than the 99% used in the BOD5 calculations
because the removal efficiencies for COD are more variable than those for BOD5. The
actual COD removal efficiencies calculated range from 93.88% to 97.27%. At 90%
removal efficiency, the maximum potential effluent COD is computed to be 4981 lb/day.
This number shall be rounded up to a COD monthly average of 5000 lb/day.
Data from DMR's for the months of April 1993 through May 1994 were used to
determine the actual ratio of the daily maximum to the monthly average COD. The
highest ratio is 1.6, as is shown on the attached effluent ratio table. This ratio is
employed as a multiplier for the monthly average of 5000 lb/day to determine the daily
maximum limit for COD of 80001b/day.
3. NH3-N Limits
Monsanto is proposing a summer NH3-N limit of 35 lb/day in conjunction with their flow
increase to 1.3 MGD. The facility is currently permitted at a monthly average of 23
Page 3 of 4

lb/day with a flow of 0.859 MGD. The proposed NH3-N limit corresponds to an
equivalent mass to flow ratio as that which is currently permitted. DMR data for the past
2 years indicates that the maximum reported NH3-N value is 12.83 lb/day. Given these
considerations, the NPDES Group agrees that a monthly average limit of 35 lb/day NH3_
N is reasonable, and should be permitted with a daily maximum of 701b/day NH3-N.
4. OCPSF Limits
Under the expansion proposal, ICI will be manufacturing a new product line and
increasing flow. Therefore, the NPDES group suggests that the list of OCPSF parameters
in 40 CFR 414, Subpart I may need to be reinstated at a frequency which should be based
upon findings during the currently scheduled April 19, 1995 site visit. Daily maximum
and monthly average limits are computed for these OCPSF parameters in the attached
spreadsheet.
5. TSS Limits
Monsanto is proposing to reduce their TSS summer monthly average limit from the
currently permitted 6601b/day to 4571b/day. Given that the facility will be reducing TSS
discharges while increasing flow, the proposed monthly average limit of 457 lb/day TSS
would seem acceptable. A multiplier of 2.0 was used in the current NPDES permit to
determine the TSS daily maximum. Accordingly, the daily maximum for this permit
cycle shall employ the same factor, making the daily maximum TSS 9141b/day.
Page 4 of 4

APPENDIX B
RESULTS OF THE REASONABLE POTENTIAL ANALYSIS
CYANIDE
COPPER
CHROMIUM
NICKEL
LEAD
ZINC
Fact Sheet
NPDES NC0003719 Renewal
Page 7

r
Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs)=
IWC(o)=
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Cyanide
Max. Pred Cw
Allowable Cw
16.4
73.2
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
1.7215
3.7
0.4676
11
2.35
7.0 µg/1
16.4 µg/1
73.2 µg/1
Parameter =
Cyanide
Date n < Actual Data BDL=1/2DL
Feb-97 1 < 5 2.5
May-97 2 < 5 2.5
Aug-97 3 6 6.0
Dec-97 4 < 5 2.5
Feb-98 5 7 7.0
May-98 6 < 5 2.5
Nov-98 7 < 5 2.5
Feb-99 8 5 5.0
May-99 9 < 5 2.5
Aug-99 10 5 5.0
Nov-99 11 < 5 2.5

Facility Name =
NPDES # =
Qw (MGD) =
7QIOs (cfs)=
1 WC (%) =
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Copper
Max. Pred Cw
Allowable Cw
40.6
252.7
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
4.3443
10.5
0.4120
11
2.14
19.0 µg/1
40.6 µg/1
252.7 µg/1
Parameter =
Copper
Date n < Actual Data BDL=1/2DL
Feb-97 1
May-97 2
Aug-97 3
Dec-97 4
Feb-98 5
May-98 6
Nov-98 7
Feb-99 8
May-99 9
Aug-99 10
Nov-99 11
12.0
12.0
19.0
6.0
7.0
4.0
11.0
11.0
8.0
16.0
10.0
12.0
12.0
19.0
6.0
7.0
4.0
11.0
11.0
8.0
16.0
10.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Chromium
Max. Pred Cw
Allowable Cw
37.4
193.5
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
4.3076
8.2
0.5240
12
2.49
15.0 µg/l
37.4 µg/1
193.48 µg/1
Parameter =
Chromium
Date n < Actual Data BDL=1/2DL
Feb-97 1 11.0 ( 11.0
May-97 2 15.0 15.0
Aug-97 3 13.0 13.0
Dec-97 4 5.3 5.3
Feb-98 5 9.5 9.5
May-98 6 < 0.7 0.4
Nov-98 7 12.0 12.0
Feb-99 8 7.8 7.8
Feb-99 9 < 5.0 2.5
May-99 10 5.5 5.5
Aug-99 11 7.7 7.7
Nov-99 12 9.0 9.0

•
Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs) =
I WC (%) =
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Nickel
Max. Pred Cw
Allowable Cw
36.8
294.6
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
3.9566
7.4
0.5373
11
2.63
14.0 µg/1
36.8 µg/1
294.6 µg/1
Parameter =
Nickel
Date n < Actual Data BDL=1/2DL
Feb-97 1 11.0
May-97 2 6.0
Aug-97 3 14.0
Dec-97 4 5.0
Feb-98 5 7.0
May-98 6 7.0
Nov-98 7 7.0
Feb-99 8 < 2.0
May-99 9 3.0
Aug-99 10 13.0
Nov-99 11 7.0
11.0
6.0
14.0
5.0
7.0
7.0
7.0
1.0
3.0
13.0
7.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs)=
1WC (%) =
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Lead
Max. Pred Cw
Allowable Cw
49.7
55.8
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mutt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
4.3465
5.5
0.7929
11
3.82
13.0 µg/1
49.7 µg/1
55.8 µg/1
Parameter =
Lead
Date n < Actual Data BDL=1/2DL
Feb-97 1 13.0 13.0
May-97 2 4.9 4.9
Aug-97 3 13.0 13.0
Dec-97 4 < 0.2 0.1
Feb-98 5 9.2 9.2
May-98 6 4.4 4.4
Nov-98 7 3.2 3.2
Feb-99 8 2.1 2.1
May-99 9 2.6 2.6
Aug-99 10 4.8 4.8
Nov-99 11 3.0 3.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Monsanto Company
NC0003719
1.25
791
0.24
FINAL RESULTS
Zinc
Max. Pred Cw
Allowable Cw no limit
Allowable #/day
1296.2
0.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
119.0645
278.2
0.4280
11
2.20
no limit
590.0 µg/1
1296.2 µg/1
µg/1
Parameter =
Zinc
Date n < Actual Data BDL=1/2DL
Feb-97 1
May-97 2
Aug-97 3
Dec-97 4
Feb-98 5
May-98 6
Nov-98 7
Feb-99 8
May-99 9
Aug-99 10
Apr-00 11
220.0 220.0
170.0 170.0
290.0 290.0
150.0 150.0
280.0 280.0
200.0 200.0
290.0 290.0
240.0 240.0
280.0 280.0
590.0 590.0
350.0 350.0

APPENDIX C
FAYETTEVILLE REGIONAL OFFICE
STAFF REPORT
AND FACILITY DATA
Fact Sheet
NPDES NC00037 19 Renewal
Page 8

DIVISION OF WATER QUALITY
July 17, 2001
MEMORANDUM
TO: Dave Goodrich, Unit Supervisor
NPDES Permitting and Engineering Unit
FROM: Grady Dobson, Environmental Engineer
Fayetteville Regional Office
THROUGH: Paul Rawls, Regional Water Quality Supervisor
Fayetteville Regional Office
SUBJECT: Staff Report for NPDES Permit Renewal
Permit No. NC0003719
Monsanto Company (Fayetteville, NC Plant)
Cumberland County
"
nr
L
Please find enclosed a staff report and recommendations of the Fayetteville Regional
Office concerning the issuance of subject NPDES Permit.
If you have any questions or require any further information, please advise.
GD/fbc
Enclosure
O
N

SOC PRIORITY PROJECT: Yes No _X
If Yes, SOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Natalie Sierra
July 17, 2001
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY: CUMBERLAND
Permit No. NC0003719
PART I - GENERAL INFORMATION
1. Facility and Address: Monsanto Company
P 0 Box 2307 (3468 Cedar Creek Road)
Fayetteville, NC 28301
2. Date of Investigation: June 14, 2001
3. Report Prepared By: Grady Dobson
Environmental Engineer
Fayetteville Regional Office
4. Persons Contacted and Telephone Number: Hope Walters [phone]
5. Directions to Site: From Fayetteville travel NC 53 East. The plant is located 8 miles
from Fayetteville, NC.
6. Discharge Point(s), list for all discharge points:
Latitude: 34 58' 8" Longitude: 78 46' 58"
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on
map.
U.S.G.S. Quad No. H23 NR U.S.G.S. Quad Name: Cedar Creek, NC
7. Site size and expansion area consistent with application?
X Yes _ No (If no, explain)
NPDES Staff Report and Recommendation

Permit No. NC 0003719
Page 2
8. Topography: (relationship to flood plain):
The wastewater treatment plant is on bluff between the plant (manufacturing part) and
the Cape Fear River. The site is not within the 100 year flood plain.
9. Location of nearest dwelling: None within 1,000 feet.
10. Receiving stream or affected surface waters:
a. Classification: Class C
b. River Basin and Sub -basin No.: Cape Fear 03-06-15
c. Describe receiving stream features and pertinent downstream uses:
At this location the Cape Fear River is approximately 100 yards wide, 8-10 feet
deep, well mixed. It is classified as Class C waters in this location, which
promotes aquatic life propogation and survival, fishing, wildlife, secondary
recreation and agriculture.
PART II - DESCRIPTION OF WASTES AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 1.25 MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater Treatment Facility:
1.25 MGD
c. Actual treatment capacity of the current facility (current design capacity).
1.25 MGD
d. Date(s) and construction activities allowed by previous Authorizations to
construct issued in the previous two (2) years: ATC issued on Jan. 5, 2000.
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities. ( See Attached. )
f. Please provide a description of proposed wastewater treatment facilities. (N/A)
g. Possible toxic impacts to surface waters: Waste contains several toxic substances .
To date, treatment levels have effluent passing toxicity requirements.
NPDES Permit Staff Report and Recommendations

Permit No. NC0003719
Page 3
h. Pretreatment Program (POTWs only):
In development
Should be required
Approved
Not needed X
2. Residuals handling and utilizing/disposal scheme:
a. If residuals are being land applied, please specify DWQ Permit No. WQ0001959
Residual Contractor: SYNAGRO
Telephone: [phone]
b. Residuals stabilization: PSRP X PFRP Other
c. Landfill:
d: Other disposal/utilization scheme (specify):
3. Treatment plant classification (See attached Rating Sheet):
4. SIC Code(s):
Primary: 34 Secondary: 31 3
Main Treatment Unit Code• 05003
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? NA
2. Special monitoring or limitations (including toxicity) requests. NA
3. Important SOC, JOC, or Compliance Schedule Dates (please attach). None. Date
Submission of Plans and Specifications NA
Begin Construction NA
Complete Construction NA
NPDES Staff Report and Recommendation

Permit No. NC0003719
Page 4
4. Alternative Analysis Evaluation: Has the facility evaluated all of the nondischarge
options available? Please provide regional perspective for each option evaluated.
Spray Irrigation: N/A. (Existing)
Connection to Regional Sewer System: N/A (Currently not available)
Subsurface: N/A (existing)
Other disposal options: N/A
5. Other Special Items: The Monsanto Company is a member of the Cape Fear River
Assembly and instream Cape Fear River monitoring is performed by this group, thus
upstream and downstream monitoring by the company should not be a permit
requirement.
PART IV - EVALUATION AND RECOMMENDATIONS
The company has advised that the Glyphosate Incineration process has been moth balled
and is on the plant's list for future dismantling. The application requests that the permitted
outfall 003 be removed from the new permit. The Fayetteville Regional Office has observed this
process for several years during plant inspections and it is not being utilized. Thus, the
Fayetteville Regional Office has no problems with elimination of outfall 003.
The OCPSF limits should be adjusted per the EPA guideline requirements for Wellman
Chemical and DuPont facilities that are part of the 002 discharge.
The wastewater treatment plant adequately treats the wastewater generated from the
various sources as well as the Monsanto Process waste. No expansions or production increases
were indicated in the application package.
Based on our June 14, 2001 site inspection, it is our recommendation that the Monsanto
Company's NPDES Permit be issued for an additional 5-year term. The two outfalls to be
included in the permit are 002 (process water lines from all sources) and 001, which is the
Monsanto Compan//y's storm water discharge.
Signature of,Repoit�Preparer:
,e�
Water Quality $tegional Supervisor
-7//Y/
Date
/46-7

�GL:OChrh�.d
416,
PRESENT OPERATING STATUS
The wastewater collection and treatment network consists of the following key systems: Outfall 001
stormwater and Outfall 002 effluent from the biotreatment system. The two are segregated until the flows
reach the Outfall box at the river, they then mix together and are discharged to the river via the same pipe.
These systems are described below:
Monsanto's Fayetteville wastewater treatment system is an activated sludge treatment sludge which
consists of equalization, pH adjustment and nutrient addition, aeration, clarification and sludge digestion
and disposal. The waste treatment system treats industrial and sanitary discharges from three chemical
production companies: Monsanto's Roundup® facility, DuPont, andWellman Chemical. This wastewater
must be treated prior to its discharge to the Cape Fear River.
The wastewater treatment method used is a biological process that is divided into five steps:
1. Collection and equalization of raw wastewater
DuPont and Monsanto chemical wastewater travel through separate lines into either of two Equalization
(EQ) Tanks. These Equalization tanks have a capacity of 660,500 gallons each or a combined storage of
1,300,000 gallons. The combined flow is then metered into the pH Control pit. The Chem -Lift station
collects chemical waste flows from Wellman and a Monsanto utilities sump but bypasses EQ tanks for the
pH Control Pit. The only other wastewater treated is domestic sewers from Wellman and Monsanto that
directly enter the biological aeration basins.
2. pH adjustment and nutrient addition
The pH Control Pit is divided into two chambers for nutrient and rough pH adjustment, followed by oil
and grease removal along with final pH adjustment. Caustic is added in the first chamber to adjust the
pH. Anhydrous ammonia is also added in the first chamber as a nutrient. Defoaming chemicals can also
be added at this point as needed. The capacity of the pH Control pit is 120,000 gallons.
3. Aeration
Activated sludge is used by the biotreatment system to process wastes. The raw wastewater is combined
with air and microorganisms and the soluble wastes are oxidized through biochemical reactions. This
reduces the *oxygen demand' of the water so it can be safely discharged. There are two aeration basins
that are operated in a modified series mode; i.e., most of the wastewater passes through the first basin
and then the second basin, though a small stream of raw wastes is diverted directly to that second basin.
Additional oxygen is needed during the summer months. An oxygen system has been added to aeration
basin 1. It is used on an as needed basis. The capacities of the basins are as follows; aeration basin 1
has a capacity of 3,500,000 gallons and aeration basin 2 has the capacity of 1,200,000 gallons.
4. Clarification
After several days of detention time, this activated sludge is then settled in a clarification process to
remove suspended solids from the treated water. Sometimes. the solids don't settle very well, therefore
coagulant - Nalco 8185 is added at the distribution box where the flow is leaving aeration basin 2 and
entering the clarifier. This allows for improved settling of solids and less solids in the effluent stream.
This clarified effluent is discharged into the Cape Fear River. The concentrated solids are recycled back
into the aeration basins in order to maintain a `steady state' waste treatment operation. This is return
activated sludge (RAS). However, because the microbes are feeding on the wastewater chemicals, their
biomass is growing. Therefore a waste activated sludge (WAS) stream is diverted from the RAS for
further treatment. The capacity of this 90 foot clarifier is 700,000 gallons.
5. Aerobic sludge digestion and disposal
Excess biomass is oxidized by aerating the WAS (waste activated sludge) in basins without influent feed.
This reduces the amount of solids that have to be disposed. WAS is treated in two digester basins that
8

L,_
are configured in a series operation. The capacity of digester 1 is 375,000 gallons and the capacity for
digester 2 is 550,000 gallons. After several weeks of detention time, the sludge is pumped to a sludge
storage basin. The sludge storage basin has a capacity of 1,000,000 gallons. After settling, the sludge is
pumped to sludge drying beds for dewatering or is pumped into tanker trucks and taken to surrounding
permitted farms for land application. There are three sand drying beds with a capacity of 100,000
gallons each. All decant from the storage basin and beds is returned to the aeration basin 2. The solids
from the drying beds and/or liquid sludge from the sludge storage basin (3-5 % solids) are land applied
per NC permit WQ0001959.

APPENDIX D
INSTREAM MONITORING DATA FROM USGS
MONITORING SITE
ABOVE
LOCK AND DAM #3
PLOT OF HISTORICAL DISSOLVED OXYGEN DATA
PLOT OF HISTORICAL TURBIDITY DATA
TABLE OF HISTORICAL WATER QUALITY DATA
Fact Sheet
NPDES NC0003719 Renewal
Page 9

Dissolved Oxygen (mg/L)
14
12
10
8
6
4
2
0
Instream Dissolved Oxygen Data - USGS Monitoring Station above Lock and Dam #3
•
♦
•
Z
♦ ♦
♦
♦
i�•
i
lip♦
• M$
% 40
44
•,
1■■i►
I•411.1^ ♦ ♦
it♦ •
♦ N *♦
M
• •• •
0 I.. ♦ ♦ ♦
♦♦•
♦• ♦ M
V7
i-♦
OP t W W•
4.t
8/12/00 10/1/00 11/20/00 1/9/01 2/28/01 4/19/01
Date
6/8/01 7/28/01 9/16/01 11/5/01

300
250
200
100
50
0
,'
Instream Turbidity Data at USGS Monitoring Station above Lock and Dam #3
•
ilt•
•
•
• v*
�••
�t
s•
8/12/00 10/1/00 11/20/00 1/9/01 2/28/01 4/19/01 6/8/01 7/28/01 9/16/01 11/5/01
Date
• Turbidity - Mean Turb

Data from USGS Station 2105500 Cape Fear River at Lock and Dam #3 near Tarheel, NC
Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
9/21/00 23.7 121 6 7
9/22/00 24 135 6.4 7.1
9/23/00 24.3 120 6.4 7.1
9/24/00 23.9 93 6.8
9/25/00 23.9 77 6.7
9/26/00 24.1 74 6.6
9/27/00 23.1 91 6.7
9/28/00 21.5 82 6.7
9/29/00 20.9 93 6.8
9/30/00 20.7 87 6.8
10/1/00 20.6 89 6.9
10/2/00 20.9 98 7
10/3/00 21 103 7
10/4/00
10/5/00 21.9 19 6.9 7.2
10/6/00 22.4 15 119 6.7 7.2
10/7/00 22.6 12 117 6.7 7.2
10/8/00 21.7 12 116 6.6 7.1
10/9/00 20.6 115 6.5 7
10/10/00 19.6 111 6.5 7
10/11/00 18.4 108 6.8 7
10/12/00 17.5 107 7 7.1
10/13/00 17 107 7.1 7.1
10/14/00 16.7 107 7.2 7.1
10/15/00 16.4 111 7.4 7.1
10/16/00 16.3 115 7.6 7.1
10/17/00 16.5 116 7.6 7.1
10/18/00 17 116 7.6 7.1
10/19/00 17.5 117 7.6 7.1
10/20/00 17.8 118 7.4 7.1
10/21/00 17.9 117 7.3 7.1
10/22/00 18.2 116 7.2 7.1
10/23/00 18.3 119 7.1 7.2
10/24/00 18.3 124 7.1 7.2
10/25/00 18.3 126 7.1 7.1
10/26/00 18.3 125 7.1 7.1
10/27/00 18.2 125 7.2 7.1
10/28/00 18.4 124 7.2 7.2
10/29/00 18.2 125 7.3 7.2
10/30/00 17.8 126 7.1 7.2
10/31/00 17.3 127 7.2 7.2
11/1/00 16.8 127 7.1 7.2
11/2/00 16.2 130 6.4 7.1
11/3/00 15.7 130 7 7.1
11/4/00 15.5 130 7.1 7.1

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
11/5/00 15.6 131 7.3 7.1
11/6/00 134 7.7 7.1
11/7/00 15 138 7.7 7.2
11/8/00 15.4 10 137 7.3 7.1
11/9/00 15.7 9 134 7.2 7
11/10/00 16.5 7.5 135 7.2 7.1
11/11/00 16.4 138 7 7.1
11/12/00 16.3 137 6.8 7.1
11/13/00 16 137 6.5 7.1
11/14/00 15.8 140 6.4 7
11/15/00 15.1 139 6.5 7
11/16/00 14.5 144 6.5 7
11/17/00 13.9 136 6.6 7
11/18/00 13.1 128 6.8 7
11/19/00 12.4 136 7.1 7
11/20/00 11.4 135 7.2 7
11/21/00 10.5 127 7.6 7
11/22/00 9.4 7.4 118 7.9 7
11/23/00 8.8 5.2 123 8.2 7.1
11/24/00 8.4 5.7 127 8.4 7.1
11/25/00 8.1 7.1 126 8.7 7.1
11/26/00 8.3 8 117 9 7
11/27/00 8.8 27 113 9 7
11/28/00 9.4 19 120 8.7 7
11/29/00 9.8 16 118 8.4 6.9
11/30/00 9.8 13 104 8.6 6.9
12/1/00 9.5 12 96 8.7 6.8
12/2/00 9.3 12 107 8.8 6.9
12/3/00 8.5 11 124 9.1 7
12/4/00 7.6 11 139 9.4 7.1
12/5/00 6.9 11 135 9.7 7.1
12/6/00 6.5 9.6 138 10 7.1
12/7/00 6.2 8.1 150 10.2 7.2
12/8/00 6.1 155 10.4 7.2
12/9/00 6.1 157 10.6 7.2
12/10/00 6.2 161 10.7 7.2
12/11/00 6.4 165 10.7 7.2
12/12/00 7 162 10.7 7.2
12/13/00 7.2 164 10.6 7.2
12/14/00 7.4 163 10.5 7.2
12/15/00 7.8 158 10.4 7.2
12/16/00 8 146 10.4 7.2
12/17/00 8.6 146 10.4 7.2
12/18/00 8.7 150 10.4 7.2
12/19/00 8.5 157 10.3 7.2
12/20/00 8 20 156 10.1 7.2
12/21/00 7.2 22 142 10.2 7.1

e
Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
12/22/00 6.6 15 159 10.5 7.1
12/23/00 6 12 170 10.7 7.1
12/24/00 5.3 9.7 164 11 7.1
12/25/00 4.7 8.5 165 11.2 7.1
12/26/00 4 9.2 162 11.5 7.1
12/27/00 3.8 11 160 11.5 7.1
12/28/00 3.6 14 144 11.8 7
12/29/00 3.4 10 133 12 7
12/30/00 3.4 10 139 11.9 7
12/31/00 3.1 11 138 12 7
1/1/01 3.2 10 147 11.9 7.1
1/2/01 3.1 9.9 150 11.8 7
1/3/01 3 11 143 11.9 7
1/4/01 2.9 14 137 11.9 6.9
1/5/01 2.8 13 143 12.1 7
1/6/01 2.8 13 148 12.3 7
1/7/01 3 25 144 12.2 7
1/8/01 3.3 15 130 12.1 6.8
1/9/01 3.5 13 127 12 6.8
1/10/01
1/11/01 3.9 20 136 12 7.1
1/12/01 4.3 21 136 12 7.1
1/13/01 4.7 21 140 11.9 7.1
1/14/01 5.3 21 141 11.8 7.1
1/15/01 6.1 21 142 11.7 7.2
1/16/01 6.7 21 138 11.8 7.2
1/17/01 7.2 21 142 11.8 7.3
1/18/01 7.7 21 145 11.6 7.4
1/19/01 8.5 21 145 11.6 7.4
1/20/01 9.3 19 144 11.6 7.5
1 /21 /01 9.4 19 146 11.3 7.5
1/22/01 9.4 19 143 10.9 7.4
1/23/01 8.7 19 137 11 7.5
1/24/01 8.1 16 141 11 7.4
1/25/01 7.3 14 124 10.8 7.1
1/26/01
1/27/01
1/28/01
1/29/01
1/30/01
1/31/01 7.5 5.4 128 12.8 8.7
2/1/01 8 7.2 129 12.5 8.6
2/2/01 8.3 8 133 12 8.5
2/3/01 8.5 8.9 132 11.5 8
2/4/01 8.4 8.8 135 11 7.7
2/5/01 8.4 7.6 137 10.6 7.5
2/6/01 8.5 7.5 131 10.4 7.4

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
2/7/01 8.5 6.9 134 10.7 7.5
2/8/01 8.7 6.6 137 10.9 7.5
2/9/01 8.9 8.2 141 11.1 7.6
2/10/01 9.6 8.7 139 11.1 7.6
2/11/01 9.8 11 141 10.9 7.4
2/12/01 9.8 12 140 10.4 7.3
2/13/01 9.8 13 133 10.2 7.2
2/14/01 10 13 123 10.1 7.2
2/15/01 10.3 15 114 9.6 7.1
2/16/01 11 16 121 9.7 7.2
2/17/01 12 18 118 9.8 7.3
2/18/01 12.4 21 112 9.4 7.2
2/19/01 12.2 37 118 9 7.2
2/20/01 10.5 30 134 9.3 7.2
2/21/01 10.7 36 132 9.1 7.2
2/22/01 10.7 36 119 9.1 7
2/23/01 10.3 52 125 9.2 7.1
2/24/01 9.1 71 121 9.6 7.1
2/25/01 9.6 46 127 9.8 7.1
2/26/01 10.5 37 130 9.8 7.1
2/27/01 11.2 34 130 9.7 7.1
2/28/01 11.5 30 129 9.6 7.2
3/1/01 11.5 27 127 9.7 7.1
3/2/01 11.7 24 126 9.9 7.1
3/3/01 12.1 24 128 9.8 7.1
3/4/01 12.2 24 126 9.7 7.1
3/5/01 12.1 28 120 9.4 6.9
3/6/01 11.4 36 115 9.8 6.9
3/7/01 10.3 43 116 10 6.9
3/8/01 9.4 52 113 10.2 6.8
3/9/01 9.8 39 124 10.2 6.9
3/10/01 10.3 32 126 10.2 6.9
3/11/01 10.8 28 134 10.1 7
3/12/01 10.9 25 140 10.2 7
3/13/01 11.6 23 140 10.2 7
3/14/01 12.5 22 141 10.3 7.1
3/15/01 13.1 22 136 10.1 7.1
3/16/01 13.5 22 131 9.7 7
3/17/01 13.8 22 114 9.4 6.9
3/18/01 14 20 103 9.3 6.9
3/19/01 13.4 23 96 9.1 6.8
3/20/01 12.8 24 96 9.2 6.8
3/21/01 12 67 97 9.5 6.8
3/22/01 11.4 160 88 9.6 6.7
3/23/01 11.5 100 84 9.6 6.6
3/24/01 11.9 97 82 9.5 6.6
3/25/01 12.1 78 95 9.5 6.8

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
3/26/01 12 80 100 9.5 6.8
3/27/01 11.7 72 114 9.8 6.9
3/28/01 11.6 57 128 10.1 7.1
3/29/01 11.6 40 132 10.1 7
3/30/01 11.9 45 120 9.8 6.9
3/31/01 11.6 240 83 9.3 6.6
4/1/01 250 74 9.4 6.5
4/2/01 12.1 150 73 9 6.5
4/3/01 12.1 110 68 9.3 6.5
4/4/01 12.1 130 77 9.6 6.6
4/5/01 12.1 110 83 9.8 6.7
4/6/01 12.3 86 97 9.9 6.8
4/7/01 13 72 106 9.7 6.8
4/8/01 14 54 118 9.4 6.9
4/9/01 15.1 44 121 9 6.8
4/10/01 16.5 32 120 8.6 6.8
4/11/01 17.9 25 117 8.2 6.9
4/12/01 18.8 18 118 8 6.9
4/13/01 19.4 16 122 7.7 6.9
4/14/01 19.6 15 122 7.5 6.9
4/15/01 19.5 14 121 7.2 6.8
4/16/01 19.7 13 117 7 6.7
4/17/01 19.3 113 6.9 6.7
4/18/01 18.2 14 107 6.9 6.7
4/19/01 17.3 15 106 6.9 6.7
4/20/01 16.5 18 110 7.1 6.7
4/21/01 16.4 20 109 7.1 6.7
4/22/01 16.6 19 111 7.3 6.8
4/23/01 17.2 21 115 7.4 6.8
4/24/01 18 22 116 7.4 6.8
4/25/01 18.9 22 116 7.3 6.8
4/26/01 18.9 19 116 7.1 6.8
4/27/01 19.1 12 109 6.7 6.7
4/28/01 19.2 13 107 6.9 6.8
4/29/01 19.4 13 108 6.8 6.8
4/30/01 19 35 103 7 6.8
5/1/01 18.8 16 99 7 6.8
5/2/01 19.2 12 102 7.1 6.8
5/3/01 19.7 10 112 7.2 6.9
5/4/01 20.3 10 118 6.9 7
5/5/01 20.9 12 122 6.9 7.1
5/6/01 21.3 14 121 6.7 7.1
5/7/01 21.4 18 123 7.1 7.1
5/8/01 21.5 17 123 6.9 7.1
5/9/01 21.6 14 126 6.7 7.1
5/10/01 21.9 14 128 6.4 7.1
5/11/01 22 17 126 6 7

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
5/12/01 22.2 22 121 5.7 7
5/13/01 22.4 21 126 6 6.9
5/14/01 22.7 25 130 6.4 7
5/15/01 22.8 22 134 6.8 7
5/16/01 22.7 20 139 7.2 7
5/17/01 22.4 24 140 6.7 6.9
5/18/01 21.7 30 142 5.7 6.8
5/19/01 21.9 27 149 5.7 6.9
5/20/01 22.2 37 151 5.1 6.8
5/21/01 22.4 37 145 5.1 6.8
5/22/01 23.1 41 143 6.4 7
5/23/01 23.5 40 142 6.7 7.2
5/24/01 23.8 42 146 7.2 7.4
5/25/01 23.9 43 141 6.6 7.2
5/26/01 24.3 39 144 6.5 7.2
5/27/01 24.5 40 148 6.6 7.3
5/28/01 24.4 42 148 6.4 7.2
5/29/01 24.3 35 148 6.1 7.1
5/30/01 24 53 149 5.7 7
5/31/01 24 44 141 5.1 6.9
6/1/01 24.1 41 138 6.2 7
6/2/01 24.1 84 131 6.2 7
6/3/01 23.5 150 149 5.2 6.8
6/4/01 22.9 98 4.9 6.5
6/5/01 23.8 67 95 5 6.5
6/6/01 24.3 44 137 5.7 6.7
6/7/01 24.4 27 164 6.1 6.9
6/8/01 24.7 24 161 5.7 6.9
6/9/01 24.6 22 160 5.2 6.9
6/10/01 24.5 21 158 4.9 6.8
6/11/01 24.6 26 158 4.6 6.8
6/12/01 24.9 31 160 5 6.8
6/13/01 25.5 26 156 5.3 6.8
6/14/01 25.4 30 128 5 6.7
6/15/01 25.7 34 116 5.3 6.7
6/16/01 26 36 122 4.9 6.8
6/17/01 25.4 56 97 4.9 6.6
6/18/01 25.6 60 67 4.9 6.3
6/19/01 25.8 50 57 4.8 6.1
6/20/01 26.4 33 63 4.9 6.1
6/21/01 26.9 28 74 5 6.3
6/22/01 27.4 26 87 5.3 6.5
6/23/01 27.6 25 111 5.5 6.7
6/24/01 26.4 48 109 5.2 6.6
6/25/01 25.1 41 96 5.3 6.5
6/26/01 25.2 37 85 5.4 6.5
6/27/01 25.9 32 102 5.4 6.6

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
6/28/01 26.6 34 96 5.3 6.6
6/29/01 26.9 42 83 5.3 6.5
6/30/01 27.8 30 94 5.5 6.6
7/1/01 28.2 110 5.6 6.7
7/2/01 28.7 123 6 6.8
7/3/01 28.4 127 5.8 6.8
7/4/01 28.3 123 5.5 6.8
7/5/01 28.1 120 5.7 6.9
7/6/01 27.9 52 125 5.6 6.9
7/7/01 27.1 45 104 4.6 6.7
7/8/01 26.1 47 72 4.5 6.5
7/9/01 26.1 36 72 4.5 6.5
7/10/01 26.5 33 87 4.5 6.6
7/11/01 27.1 29 101 4.9 6.8
7/12/01 27.9 23 115 5.2 7
7/13/01 28.2 20 121 4.7 7
7/14/01 27.9 19 127 4.6 7
7/15/01 27.7 20 129 4.7 7
7/16/01 27.3 130 5.3 6.8
7/17/01 27.2 134 5.4 6.7
7/18/01 27.1 19 136 5.9 6.7
7/19/01 27.5 16 137 6.8 6.9
7/20/01 27.7 14 137 7.2 6.9
7/21/01 27.5 15 135 6.6 6.8
7/22/01 27.1 20 106 5.3 6.5
7/23/01 27.2 18 109 5.6 6.6
7/24/01 27.6 15 121 6.3 6.7
7/25/01 27.8 13 133 6 6.8
7/26/01 27.9 14 131 5.7 6.8
7/27/01 27.6 16 123 5.6 6.7
7/28/01 27.3 20 133 6.2 6.7
7/29/01 26.9 23 139 5.5 6.8
7/30/01 26.3 125 5.2 6.7
7/31/01 25.7 28 106 4.8 6.6
8/1/01 25.6 25 108 4.9 6.6
8/2/01 25.7 24 108 4.8 6.6
8/3/01 25.8 26 105 4.5 6.6
8/4/01 26.1 26 111 4.2 6.6
8/5/01 26.4 26 118 4.2 6.6
8/6/01 26.7 25 119 4.2 6.6
8/7/01 26.9 27 126 4.2 6.7
8/8/01 27 21 134 3.9 6.6
8/9/01 27.4 14 140 3.9 6.7
8/10/01 28 9.3 148 4 6.8
8/11/01 28.8 7.9 156 4.6 6.9
8/12/01 30.2 13 172 6.9 7.4
8/13/01 28.1 50 110 4.5 6.5

Date Temperature Turbidity Conductivity Dissolved pH
(deg C) (NTU) Oxygen (mg/L)
8/14/01 27.1 31 81 4.4 6.3
8/15/01 27.2 30 84 4.5 6.4
8/16/01 27.3 30 88 4.7 6.4
8/17/01 27.8 25 114 4.5 6.7
8/18/01 27.9 26 140 4.5 6.8
8/19/01 26.9 31 138 4.4 6.7
8/20/01 26.7 37 108 4.3 6.6
8/21/01 26.3 36 86 4.5 6.4
8/22/01 26.5 25 88 4.7 6.5
8/23/01 26.6 23 85 4.9 6.4
8/24/01 26.8 18 87 5.3 6.4
8/25/01 27.1 15 97 5.6 6.4
8/26/01 27 17 105 5.8 6.5
8/27/01 27.2 15 112 7.1 6.8
8/28/01 27.4 13 120 7.5 7
8/29/01 27.6 12 128 7 6.9
8/30/01 27.4 12 131 6.7 7
8/31/01 27 15 126 5.4 6.7
9/1/01 26.6 15 117 4.9 6.6
9/2/01 26.3 17 92 4.8 6.5
9/3/01 25.9 16 88 4.8 6.5
9/4/01 25.8 14 98 4.7 6.5
9/5/01 25.6 15 99 4.7 6.5
9/6/01 25.7 13 97 4.7 6.5
9/7/01 25.5 8.7 96 4.8 6.5
9/8/01
9/9/01 25.6 8.7 97 4.9 6.5
9/10/01 25.5 9.8 98 4.7 6.5
9/11/01 25.8 9.1 103 4.9 6.6
9/12/01 26 8.4 108 5 6.7
9/13/01 25.9 8 107 5.1 6.7
9/14/01 25.6 7.9 107 5 6.7
9/15/01 24.7 8 116 4.9 6.8
9/16/01
9/17/01 23.4 9.4 113 4.6 6.8
9/18/01 22.9 27 129 5.5 6.7
9/19/01 22.6 68 138 7.2 6.8
9/20/01 22.5 13 138 6.3 6.7

v1L
it0' ems) s r- n.(1\3 S e-mv\G
A LL. C',\ -� vv lyrt. 2P v1
(2-t( :- o-1 YV 51 I- `� P+�l7 tw)oksl� l7`� - Cs c-i�s� QC) A" .14
F t_ L 63 -� S UV )(JLW / T1CLt„M V: - t �- i LK14-foi:
MO u ` f Pt- A).‘ K P fl•2_DDA S r2Y J 1 }NLL A-N' c.1-Y\i6 S da c{ 71.7\14C
0 uccikLu G '� sv.) ij0 t'_'► 2 PXL `� 'Z-� ; r+-NSQL
�3 J1
our- 1-2
-like— P` fA s.sac— Gir t2-0 kYC '1
l 1•'ti C: LAA 1 `NIC 0 L.,PO- - Of.)c S
IJ UT' -+-L.. C� - c1210 (Y)1 J+c V 1 11,SS C.C., 11`1
-Lie l tj ,Rarz - •rvNSPUGT
PLOTzr (ZO rs4 (71te`PL s?iebCZS. t --- c
i
Dvr u oo S ti vle--`1 ti `'��� Przbc S C4i-tcoPL-csP watt-
i
1:›a bC- -e-ss ,AAR-S7t) 1-) L.A '-‘-j( tr.fir\) 1 Sur2v604—.. c---1-1-7
5' i 14t-A G s�1s,ecre -4- Sp,r..) , ;- N,Aiz-4 -t----P_ie+ P S \t'ArN1
` -e- at` t-t `RSV 1- - .
x3 �
t�6 L 1c:R GF►aRiVIM, Lam&

r-10 sc czc- -sb ` E P e-
pri-€ s eP, �► A r
eat) axon24ua, o d4 A ALAthy
eAbi2thze, a2, C'/YL 7 &L) � j J C'a (r /eJij,
at) P) .) /` j 1`'! J * 1\!7 S
IV/2/t
ThE5B IT off. S-D4-71) S
•
--/Atodn2,4,7„:, iam .Q,ekazd
--bwa) _ 4�u Jaz /il
i6haidetio/d-
bi Mvs Ywzig,
-afr)& eyot-b-S (wg66a/15��
ly.ph osocfie) a,rn,m.) n MAE) vi- P`I
re5in P�� 511
eb
z O`c\SAN— U vRIYv r
`Pv 1P&N - ( VC/ 5 VI H 1 �S
G J eh-OSum ' 1 /J (Po f E ,

eTh
-oDucRoN MoNSfTo 1441,13
2-o:DMloi 4 ove(e. etogv-- - ove.--0-714\)
S I '
44'5tft:.
a1 Pu NG — 7 `1
Y(C9N5ANFTO
flvrti 6 pa7_t- -po-F\ 1 cit . oF rncdd eh�.d� ace IzdeMiuree
cis Ae - ctoln
.T>A-TA ors yUax r+ 10-1\o\ ACim cDP.o t\-Is .
-fI uuv s cc) 4-d Le_ etett_. a v2
S Kvi C-ka) IeCQ))CL&-v4f9 (e tT'-kA) i Svp✓c Y let wi;,tie
Lel() 1>
6,11 pkubsc„kc ivvi
( I ILI 10a scuMptt p/G
-1V-c 41.
MoNSfr"m
City_ 1HR1Se 0f(44-at•
kct c
aAe
c(eS Ci'i'Z Svbpck v It A.
G1kipG.aSc1/4-I-e Conv c.h Afr1 Moviil.1(I.j
6 1 lelfospAa.
Ltocryi_
suopLA-
CttanIcSJs sC_),rvNrIvt�^�
dC(�S}= --� �10 Cam- LIP-{ SUb, c. (jdQJvvQL14)

7 arn a%o'n
ad n
/L ✓
r
Cl/No Am; as/-L-a
C+Vflrib7ES
ov20
01\.)Sad,47-1)
JU31L?
tAo
745.e
PCL —ro> C fie- o '4(11
76(
0CPS r S , sZ/4A)
1
C 1-
Tontsc
T OW) FLO PT 062 AT- �a
3
S,cuinQ gym._a„o pAcisaed he J
Cklf2ung, pi-1w j
V_ @
Sy\-e
ot/ 11/A)- vol cok4eAuyvi-
pe- 0°60144
SAP
Itl3) Pour .
LONDI
S \ )
A l�� v`ll N Lr-rn {-
Q44-(2,E)
c(IN

11�) 0\ l fl v- cavil ` p_s Ni p C tP \—t u Cd Q A
15 I b b (JAI IT•L m) ► L Ta N L t r,t o ✓D
i zl 2_1 IkS .?
00t 0c?S\-- tlot,..1 •--r GUl I
0 c cAr.A1 L Y\-4
—i 14 S s A 2 3 PLAN4t- Cv l&1 �U
"r-`2 b N- -1)vJ \("1-11c
_7 a . e`%U N u crrF.4L� GO(
.,),CO A- T—C C-ov CulAielkwito etyvvyk-fg-Wk
T I a —/ k cq Imp , Fyn -o ►can mar). '-F.l a/3 pA
'KJ c6U-Q 14, .(1QsAAA,
erpo
001 ,ciG3
ii)/)04 r ) —N P) T S S (fe/Cod1/)
TurvioJ cob, �(� ��S�� f 7—� .� © CPSr
Oo & As cth( ✓e
o C' )6h rt 1 0v1.-4-& UC�I�� ��1t-�� -� . ()) ) S S)

=vim 631,12aR.AbeWe
� + f A
N�1 /C'vA+i ' CtN (t
o KISA.6\, CeI PAN J
r-oS ANI- o
2C)C3C)
115 C C1i2.eEcmorN .D .12 13 I0tc, NZ -, ,► -11-e
p\N-I�i ovs Artr A R n
15 Hj
ar apf\ ` o f I N C
- FLuW7- Litt4 ► i
fr(ONSAN I U
r .4Y3e-/ L )
'?-02vFbs
a I a3 Rr CLASS o r SAS its TLY.
C R 'B.161.06 c �`Y� PCkk ;jr 13\N C oN)
I I I2 LI
F-1)4 e;?UQ run 4,, ;�t1�2cxS Ater-toAnn
grA) - Pft,a/rii,4 4iy -ktatlatia/Z-C
(\ 15 ice! ST 41 F
I I Igo) N . 0 <�
-6 -bx v`R cd
6)1
A -SS o c c+��U
ftPc

wa--P. (cam
e:
•
(OI 21` Q/ $ i ,
Sr'n 512-y) 141z &t
31ak-1;19 C_ EGA
cqr I 5 F pc 1
a-ft Imp px,niuo--a3
e)voi,fr,i)ybat44/7fri
'ham, cke.etiv, i to-c.2Q e1& ,& 4
tlac\leicc c.�.l.
Splm 74—Y
s(S ,N6).
I ►"1 Sbi/► CF c t \% Vi cp
k--blh I SS (1O (L)
,1.ot (1\11 y )c c_ci ot
SihnAk
7140)-C,ce tZevi 10.e/r4 z-e( O4,e
9--arotothr a7f
1 (GPalOsa4--e) ' jvc (

ncj/9-
(c;(14
KME5.
Spirl rA-C-X.
`'e-ykkt2A- cilsa"cv. uotik-ovuzaho,
I qq(P
ja 1D-- NdJ v\:-c. I
tom G � z . $ t1 o,.0 \ 10.3 Pt�n
ail_ -wv.---aa
r•Az pa.40
rn9.),f)
T

erf-Luor\fr 6(A-DelA
26D, coi)/ 0-7/ c.A..ikivuArJ
p)1.6?. Ny?scrzsici,
if / LI 0 nein- (mkt/
Ocn.
1,-)CFSF- apv Foccc2
Srtowc Cr CuC,C )�'
z Zo - okt p.(
V&I.ii/to Ch )) ea4 t/&7
suft- 2--rx ,
ocPsr ctc*u 19N— 'MG/

IWC Calculations
Monsanto Company
NC0003719
Prepared By: Natalie Sierra, NPDES Unit
Enter Design Flow (MGD):
Enter s7Q10(cfs):
Enter w7Q10 (cfs):
0.5
791
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (U
IWC (%)
Allowable Conc. (ugll)
Fecal Limit
(If DF >331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF)
NPDES Servor/Current Versions/IWC
791
1.25
1.9375
17.0
0
0.24
6957
Ammonia (NH3 as N)
(summer)
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
Ammonia (NH3 as N)
(winter)
7Q10 (CFS)
Not Required DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
409.26 UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
791
1.25
1.9375
1.0
0.22
0.24
319.4
791
0.5
0.775
1.8
0.22
0.10
1614.4
10/9/01

-1
X 71
44-4 7A/Matia
6.firifikt0
Bei-1 Aca eawkLeixtr
Jpoott_ RIGVA:IA
theAtac:f few
htiTY) S
YZA1 rr CSvNC..--.,
AA/1A."J, 4-AAdsc
out-
toiw
pA.famnitr
C_S I.A3-

Ninaz:Lt I -I (841,61) ARG litrtn,t)
Tvz ?-VP\S'‘E
-FL04J%.A.U.-b oN 11,3
Bub B-0--&ct 6LADEI.1
M1/4- N orksj
O c-six kNe___ 6i.4,1)0LiA JEK
— ALL- 2/14( it tAkitiLy
—CZeuotxr: TUTI4L PAtt,s
ti .nctukcjo
RC-1\01.0\X, PttoS
t (3(?ilvf),-11,_(Per1t
00'
000Z AelAl

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
January 5, 2001
Mr. Marty BIaylock
Monsanto Company
800 N. Lindbergh Blvd.
St. Louis, Missouri 63167
AVA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification — Name/Ownership Change
Permit NC0003719
Monsanto Company
(Formerly Monsanto - Fayetteville)
Cumberland County
Dear Mr. Blaylock:
In accordance with your request received December 22, 2000, the Division is forwarding the subject permit
modification. This modification documents the change in name at the subject facility. All other terms and conditions in the
original permit remain unchanged and in full effect. This permit modification is issued under 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.
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 followinrg
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.
This permit does not affect the legal requirement to obtain other permits which may be required by the Division of
Water Quality, the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local government
permit that may be required. If you have any questions concerning this permit, please contact Valery Stephens at the
telephone number or address listed below.
cc: Central Files
Fayetteville Regional Office, Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit
Sincerely,
l_ L-ffris.„l-
rr T. Stevens
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 520 (fax) 919 733-0719
VISIT US ON THE INTERNET @ httpJ/h2o.enr.state.nc.us/ [e-mail]

Permit NC0003719
I
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution
Control Act, as amended,
Monsanto Company
is hereby authorized to discharge wastewater from a facility located at
Monsanto - Fayetteville
3468 Cedar Creek Road
Fayetteville
Cumberland County
to receiving waters designated as Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts
I, II, III and IV hereof.
This permit shall become effective January 5, 2001.
This permit and authorization to discharge shall expire at midnight on October 31, 2001.
Signed this day January 5, 2001.
T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

MONSANTO
Food • Health • Hope
April 28, 2000
Ms. Christy Jackson
NC DENR/DWQ
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Notification of Change in Name
Monsanto Company Fayetteville Plant
NPDES Permit No. NC0003719
Dear Ms. Jackson:
MONSANTO COMPANY
AGRICULTURAL SECTOR
P.O. Box z3o7
CEDAR CREEK ROAD
FAYETTEVILLE, NORTH CAROUNA 28302
PHONE [phone]
Enclosed please find a "Permit Name/Ownership Change Form" for the Monsanto
Company Fayetteville Plant. The Fayetteville Plant is submitting this form to reflect a
change in name of the legal owner and operator of the facility from Monsanto Company
to Pharmacia Corporation. This change in name is the result of the April 1, 2000 merger
between Monsanto Company and Pharmacia & Upjohn Inc. As a result of this merger,
Monsanto Company survived, but under the new name of Pharmacia Corporation.
Please be advised that on or about July 1, 2000,1 the Fayetteville Plant will be transferred
to a new owner, also to be called Monsanto Company, a wholly -owned subsidiary of
Pharmacia Corporation. Another Permit Name/Ownership Change Form, along with the
required supporting documentation, will be submitted at that time to reflect this change
in ownership.
Please note that as a result of the above -described transactions, on or about July 1, 2000,
the Monsanto Company (now Pharmacia Corporation) Fayetteville Plant will be owned by
the new Monsanto Company, and will again operate under the name of Monsanto
Company. For this reason, this form is being submitted for notification purposes only.
No formal name change to our NPDES permit is being requested at this time.
If you have any questions regarding the above -referenced change in name, please
contact Ruth Trotman at 910-433-4242.
Deborah R. Small
Plant Manager
sms
Enclosure
1 This date is tentative and subject to change. We will notify you as soon as practicable of the
exact date of the transfer of ownership.

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
ATA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
PERMIT NAME/OWNERSHIP CHANGE FORM
I. CURRENT PERMIT INFORMATION:
Permit Number:
1. Permit holder's name:
N C00_0_/_3_/_7_/_ 1 _/_9_
Monsanto Company
2. Permit's signing official's name and title: Deborah R. Small
(Person legally responsible for permit)
3. Mailing address: P.O. Box 2307
State:NC Zip Code: 28302
E-mail address: [e-mail]
Plant Manager
(Title)
City: Fayetteville
Phone: [phone]
II. NEW OWNER/NAME INFORMATION:
1. This request for a name change is a result of:
a. Change in ownership of property/company
X b. Name change only
X c. Other (please explain): *See explanation below
2. New owner's name (name to be put on permit)":
Pharmacia Corporation — Monsanto Company Fayetteville Plant*
3. New owner's or signing official's name and title:
4. Mailing address:
State:
E-mail address:
(Person legally responsible for permit)
Zip Code:
City:
Phone:(
(Title)
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
Telephone [phone] FAX [phone]
50% recycled / 10% post -consumer paper

* This form is being submitted for notification purposes only. We are not currently requesting that the name on
this permit be changed to Pharmacia Corporation due to the following pending corporate changes. On April 1,
2000, Monsanto Company merged with Pharmacia & Upjohn, Inc. As a result of this merger, Monsanto Company
survived, but under the new name of Pharmacia Corporation. On or about July 1, 2000, the former Monsanto
Company's agricultural business and assets, including the Fayetteville Plant, will be transferred to a new
corporation, also to be called Monsanto Company, a wholly -owned subsidiary of Pharmacia Corporation. As a
result, on or about July 1, 2000, the Fayetteville Plant will be owned by the new Monsanto Company, and will
again operate under the name of Monsanto Company. At that time, we will submit a revised ownership change
form, along with the appropriate documentation.
Version 9-99

PERMIT NAME / OWNERSHIP CHANGE FORM
THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF WATER QUALITY
UNLESS ALL OF THE APPLICABLE ITEMS LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
REQUIRED ITEMS:
1. This completed application form
2. Legal documentation of the transfer of ownership (such as a contract, deed, articles of
incorporation)
For changes of ownership, this form must be completed and signed by both the current permit
holder and the new owner of the facility.
For name change only, the current permit holder must complete and sign the Applicant's
Certification.
Current Permittee's Certification:
I, , attest that this application for
name/ownership change has been reviewed and is accurate and complete to the best of my
knowledge. I understand that if all required parts of this application are not completed and that
if all required supporting information and attachments are not included, this application
package will be returned as incomplete.
Signature: Date:
Applicant's Certification:
I, Deborah R. Small , attest that this application for a
name/ownership change has been reviewed and is accurate and complete to the best of my
knowledge. I understand that if all required parts of this application are not completed and that
if all required supporting information and attachments are not included, this application
package will be returned as incomplete.
Signature: ithad
Date: . j- 00
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING
INFORMATION & MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDDRESS:
NC DENR / DWQ
Version 9-99

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt. Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
November 17, 2000
Mr. Oscar Berryman
Monsanto — Fayetteville Plant
P.O. Box 2307
Fayetteville, NC 28302
A7A
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit NC0003719
Monsanto — Fayetteville Plant
Cumberland County
Dear Mr. Berryman:
The Division is beginning the cycle of permit renewals for the Cape Fear river basin. An examination of the Cape
Fear basin plan and the NPDES permit schedule has revealed that the existing expiration dates in Cape Fear NPDES
permits do not coincide with the revised permit expiration dates for the basin. This discrepancy could create unnecessary
delays in the processing of over 200 permit renewals. Accordingly, the Division is changing the permit expiration dates for
NPDES permits in the Cape Fear river basin.
This permit modification changes the expiration date of the subject permit in subbasin 30615 to October 31, 2001.
Please find enclosed the revised permit cover page. Insert the new cover page into your permit and discard the old page.
All other terms and conditions contained in the original permit remain unchanged and in full effect. This permit
modification is issued under 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.
In accordance with the modification of the permit expiration date, the new due date for your renewal application is
May 4, 2001. Renewal application forms will be sent to you approximately 6-8 weeks in advance of the new due date or
you may download the forms from the NPDES web site at http://h2o.enr.state.nc.us/NPDES/documents.html. You
will need to download Standard Form C. If you have already submitted a permit renewal form, there is no need to
submit any other forms to the Division; the application will be processed during the renewal period for your subbasin.
If any part of 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 (6714 Mail
Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning this permit modification, please contact Natalie Sierra at [phone],
extension 551.
cc: Central Files
Fayetteville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
Sincerely,
Kerr T. Stevens
Telephone [phone] FAX [phone]
VISIT US ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

Permit NC00037J.9
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Monsanto - Fayetteville
is hereby authorized to discharge wastewater from a facility located at the
Monsanto - Fayetteville
3468 Cedar Creek Road
Fayetteville
Cumberland County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective December 1, 2000.
This permit and authorization to discharge shall expire at midnight on October 31, 2001.
Signed this day November 17, 2000.
Kerr T. Stevens, irector
Division of Water Quality
By Authority of the Environmental Management Commission