NC0055786_Permit (Issuance)_20040618

NPDES DOCIMENT SCANNING: COVER SHEET
NPDES Permit:
NC0055786
Lexington Regional WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 18, 2004
This document is printed on reuse paper - ignore any
content on the reirerse side

trA
NCDENR
Mr. Roger Spach
Water Resources Superintendent
City of Lexington
28 West Center Street
Lexington, North Carolina 27292
Dear Mr. Spach:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
June 18, 2004
Subject: Issuance of NPDES Permit NC0055786
Lexington Regional WWTP
Davidson County
The Division has reviewed the City of Lexington comments of March 17, 2004 in response to their draft NPDES
permit. The Division has considered the concerns raised and has modified the permit in accordance with current
Division policy, all responses to concerns and revisions made to draft permit, NC0055786, are explained below:
Comment: Request to delay in implementation of the phosphorus limits due to construction delays.
Response: The Division grants your request, the implementation of the phosphorus limits is delayed until
November 1, 2004.
Comment: Request to remove the daily maximum limit for mercury.
Response: The Division is unable to grant this request. We have conducted a statistical analysis of the mercury data
based on the 16 samples that were analyzed using the new detection method. The result clearly indicates that there is a
reasonable potential to exceed the water quality standard. Therefore, implementation of the limit is required.
Comment: Request to increase permitted flow to 6.5 MGD.
Response: The request to re -rate your plant is being reviewed separately and you will be notified of the decision.
The final permit contains following significant changes:
1) The implementation of phosphorus limits is delayed until November 1, 2004.
2) The phenols limit is increased to 3.1 µg/L, to correct a previous error.
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).
This permit includes a TRC limit that will take effect on February 1, 2006. If you wish to install
dechiorination equipment, the Division has promulgated a simplified approval process for such projects. Guidance
for approval of dechlorination projects is attached.
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Phone: [phone]
fax: [phone]
DENR Customer Service Center 1 800 623-7748

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 Dr. Sergei Chernikov at telephone number
[phone], extension 594.
Sincerely,
ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan W. Klimek, P.E.
cc: Central Files
NPDES Unit
Winston-Salem Regional Office / Water Quality Section
Pretreatment Unit
Aquatic Toxicology Unit
Mr. Roosevelt Childress, EPA Region IV

4
.4
Permit NC0055786
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, the
City of Lexington
is hereby authorized to discharge wastewater from a facility located at the
Lexington WWTP
South of Lexington
Davidson County
to receiving waters designated as Abbotts Creek in the Yadkin -Pee Dee River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV
hereof.
The permit shall become effective August 1, 2004.
This permit and the authorization to discharge shall expire at midnight on April 30, 2009
Signed this day June 18, 2004.
ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0055786'
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
The City of Lexington is hereby authorized to:
1. Continue to operate the existing 5.5 MGD wastewater treatment facility that includes the following
components:
> Two influent pump stations
> Influent flow measurement and recording
> Mechanical bar screen
> Grit collection
> Two primary clarifiers
> Two trickling filters
> Six aeration basins
> Two secondary clarifiers
> Two polishing lagoons
> Chlorine contact chamber
This facility is located at the Lexington WWTP, south of Lexington in Davidson County.
2. Discharge treated wastewaters from said facility into Abbotts Creek, a Class WS-V & B water in the
Yadkin -Pee Dee River Basin, at the location specified on the attached map.

SILVER HILL 4 MI.
8.7 MI, TO N C 8
569
570 1 640000 FEET
Quad: Lexington East, N.C.
Latitude: 35°46'06"
Longitude: 80°14'14"
Stream Class: WS-V & B
Subbasin: 30707
Receiving Stream: Abbotts Creek
NC0055786
Lexington Regional
WWTP
North
12'30"
512
!o
SCALE 1:2L4000

•
Permit NC0055786
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall be
authorized to discharge treated wastewater from Outfall 001 subject to the following effluent limitations and
monitoring requirements:
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
EFFLUENT CHARACTERISTICS
Monthly
Average:
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location (1)
How
5.5 MGD
Continuous
Recording
I or E
BOD, 5-day, 20°C (2) (Apr 1 - Oct 31)
(Nov 1- Mar 31)
5.0 mg/L
10.0 mg/L
7.5 mg/L
15.0 mg/L
Daily
Composite
I, E
Total Suspended Solids (2)
30.0 mg/L
45.0 mg/L
Daily
Composite
I, E
NH3-N, mg/L (Apr 1 - Oct 31)
(Nov 1- Mar 31)
2.0 mg/L
4.0 mg/L
6.0 mg/L
12.0 mg/L
Daily
Composite
E
Fecal Coliform (geometric mean)
200/100 mL
400/100 mL
Daily
Grab
E
Dissolved Oxygen
Daily average shall not be Tess than 6.0 mg/L
Daily
Grab
E
pH
Shall be within the range of 6.0 to 9.0
standard units at all times
Daily
Grab
E
Temperature, °C
Daily
Grab
E
Conductivity, umhos/cm
Daily
Grab
E
Total Residual Chlorine(3)
28 pg/L
Daily
Grab
E
Total Phosphorus (4) (Apr 1 - Oct 31)
(Nov 1- Mar 31)
Monitor (mg/L)
4,910 lb seasonal total
Monitor (mg/L)
6,930 lb seasonal total
Weekly
Seasonally
Weekly
Seasonally
Composite
Calculated
Composite
Calculated
E
E
Total Cadmium (pg/L)
2/Month
Composite
E
Total Lead (pg/L)
2/Month
Composite
E
Total Mercury (pg/L)
0.021 pg/L
2/Month
Grab
E
Total Nickel (pg/L)
2/Month
Composite
E
Phenols (pg/L)
3.1 pg/L
2/Month
Grab
E
Total Chromium (pg/L)
Monthly
Composite
E
Total Copper (pg/L)
Monthly
Composite
E
Total Zinc (pg/L)
Monthly
Composite
E
Total Nitrogen (mg/L)
Monthly
Composite
E
Total Silver (pg/L)
Quarterly
Composite
E
Chronic Toxicity
Ceriodaphnia, P/F @ 56% (5)
Quarterly
Composite
E
Pollutant Scan
Annually
Footnote 6
E
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Footnotes:
(1) Sample locations: I - Influent, E - Effluent
(2) The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent values.
(3) The facility is allowed 18 months from the effective date of the permit to comply with the total residual chlorine limit. This time period is
allowed in order for the facility to budget and design/construct the dechlorination or alternative disinfection system.
(4) Effluent limitations for Total Phosphorus shall become effective November 1, 2004. Monitoring requirements shall apply beginning
on the effective date of the permit. Monitoring for total phosphorus shall be conducted and calculated as prescribed above and in
Condition A.(3.) of this permit.
(5) Chronic Toxicity (Ceriodaphnia), February, May, August, and November; see Condition A.(4.) of this permit.
(6) See condition A. (6.)

Permit NC005578& ,.
A. (2.) INSTREAM MONITORING REQUIREMENTS
(a) Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall
perform instream sampling upstream and downstream of Outfall 001 as specified below, unless exempted
per paragraph (b) below:
(b)
PARAMETERS
SAMPLE TYPE
MONITORING FREQUENCY
SAMPLE LOCATION (1)
June 1 -
September 30
October 1 -
May 31
Temperature
Vertical at 1 meter
increments
3/week
Weekly
Upstream at I-85,
Downstream at Highway 47
Dissolved Oxygen
Vertical at 1 meter
increments
3/week
Weekly
Upstream at I-85,
Downstream at Highway 47
Fecal Coliform
(geometric mean)
Surface
3/week
Weekly
Upstream at I-85,
Downstream at Highway 47
Conductivity
Vertical at 1 meter
increments
3/week
Weekly
Upstream at I-85,
Downstream at Highway 47
Total Phosphorus
Depth Integrated
Monthly
Monthly
Upstream at I-85,
Downstream at Highway 47
Surface
TKN
Depth Integrated
Monthly
Monthly
Upstream at I-85,
Downstream at Highway 47
Surface
NH3-N, as N
Depth Integrated
Monthly
Monthly
Upstream at 1-85,
Downstream at Highway 47
-
Surface
NO2-N + NO3-N
Depth Integrated
Monthly
Monthly
Upstream at I-85,
Downstream at Highway 47
Surface
Chlorophyll -a
Depth Integrated
Monthly
Monthly
Downstream at Highway 47
Surface
Coordinated Instream Monitoring Program, Yadkin -Pee Dee River Basin Association. The Permittee shall
be provisionally exempted from the instream monitoring requirements specified in paragraph (a) above, so
long as the Permittee remains a party in good standing in an active instream monitoring Memorandum of
Agreement signed with the Division. If the Permittee's participation in the MOA is terminated, the
requirements in paragraph (a) shall be reinstated immediately and automatically.
(c) Notification of Terminated Membership. If the Permittee's participation in the MOA is terminated for any
reason, the Permittee shall notify the Division in writing within five (5) working days, unless the
termination is initiated by the Division.
A. (3.) TOTAL PHOSPHORUS MONITORING
The Permittee shall calculate the seasonal mass loading of total phosphorus (TP) as the sum of monthly loadings,
according to the following equations:
(a) Monthly Mass Loading (pounds/month) = TP x Q x 8.34
where: TP = average TP concentration (mg/L) of the composite samples collected during the month
Q = total volume of wastewater discharged during the month at each outfall (MG/month)
8.34 = conversion factor, from (mg/L x MG) to pounds
Seasonal Mass Loading (pounds/season) = I (Monthly Mass Loadings) for the season
(b)
The Permittee shall report the total phosphorus concentration for each sample and the monthly mass loading in the
appropriate self -monitoring report and the seasonal mass loading of total phosphorus in the final self -monitoring
report for the season.

-
Permit NC0055786
A. (4.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodapbnia dubia at an effluent concentration of 56.0%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodapbnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed during the months of February, May, August and November. Effluent
sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit,
then multiple -concentration testing shall be performed at a minimum, in each of the two following months as
described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase I1 Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention:
NC DENR / DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 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, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
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 the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement 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, minimum control organism reproduction, 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.

Permit NC0055786'
A. (5.) NON -DETECTION REPORTING AND DETERMINATION OF COMPLIANCE
When pursuant to this permit a pollutant analysis is conducted using an approved analytical protocol with the
appropriate minimum detection level and a result of "non -detectable" or "below quantitation limit" is obtained, the
Permittee shall record that result as reported. For the purpose of determining compliance with a permit limit for the
pollutant, the numerical value of that individual analytical result shall be zero.
A. (6.) EFFLUENT POLLUTANT SCAN
The Permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the attached table (using a
sufficiently sensitive detection level in accordance with 40 CFR Part 136). Samples shall represent seasonal
variations. Unless otherwise indicated, metals shall be analyzed as "total recoverable."
Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ether
Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalenc
Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
VoIntile orgpntc compounds;
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromom a thane
Chloroethane
2-chloroethylvinrl ether
Chloroform
Dichlorobromomethane
1,1-dichlorocthane
1,2-dichloroethane
1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Tetrachloroethylene Di-n-octyl phthalate
Toluene Dibenzo(a,h)anthracene
1,1,1-trichloroethane 1,2-dichlorobenzene
1,1,2-trichloroethane 1,3-dichlorobenzene
Trichloroethylene 1,4-dichlorobenzene
Vinyl chloride
4 id-exhaetable compounds:
P-chloro-m-cresol
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
,Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno(1,2,3-cd)pyrcne
lsophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-trichlorobenzene
Test results shall be reported to the Division in DWQ Form- A MR-PPA1 or in a form approved by the Director
within 90 days of sampling. The report shall be submitted to the following address: Division of Water Quality, Water
Quality Section, Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617.

Fact Sheet - NPDES Permit
City of Lexington
NPDES No. NC0055786
Facility
Receiving Stream
Facility Name:
Lexington WWTP
Receiving Stream:
Abbotts Creek
Permitted Flow (MGD):
5.5
Subbasin:
030707
Facility Class:
IV
Index No.:
12-119-(6)
Facility Status:
Existing
Stream Class:
WS-V and B
Permit Status:
Existing
303(d) Listed:
No
County:
Davidson
Use Support:
Impaired
Regional Office:
Winston-Salem
Drainage Area (mi2):
182
USGS Topo Quad:
D18SW
Summer 7010 (cfs)
6.7
(Lexington East)
Winter 7010 (cfs):
15
3002 (cfs):
18
Average Flow (cfs):
167
Iwc (%):
56
FACILITY OVERVIEW
The City of Lexington owns and operates a 5.5 MGD, activated sludge wastewater treatment plant
that serves 22,000 people. The plant consists of two influent pump stations, flow measurement and
recording, mechanical bar screen, grit collection, two primary clarifiers, two trickling filters, six
aeration basins, two secondary clarifiers, two polishing lagoons, chlorination, chlorine contact
chamber, and outfall to Abbotts Creek. Sludge handling consists of four anaerobic digesters (two
primaries, one secondary, and one storage) and drying beds. Sludge is dewatered using a belt filter
press and then composted. Composted sludge is stored on drying beds.
The treatment plant vas modified in recent years to replace screw pumps at the influent lift
station(s) with submersible pumps.
The City administers an industrial pretreatment program to control the discharge of industrial and
commercial wastes into its collection system and treatment works. Industrial sources include three
Significant Industrial Users, two of which are Categorical Industrial Users.
INSTREAM MONITORING
The Lexington WWTP discharges treated municipal wastewater to the Abbotts Creek, a Class WS-V
and B water in the Yadkin -Pee Dee River basin. The Division rates Abbotts Creek as Impaired, due
to the impacts on water quality from both point and nonpoint sources in the drainage area. Problem
parameters include low DO and turbidity.
Instream monitoring is required for temperature, dissolved oxygen, fecal coliform, conductivity,
total phosphorus, TKN, ammonia nitrogen, nitrate + nitrite nitrogen, and chlorophyll -a. An analysis
of DO, temperature and conductivity data showed that the facility has no significant negative impact
on water quality of the receiving stream (table attached). The Permittee is provisionally exempted
from the instream monitoring requirements based on the participation in the Yadkin Pee -Dee
Monitoring Coalition.

Permit NC0055786
TOXICITY TESTING
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
Chronic P/F
001: Chronic P/F @ 56%
001: Chronic P/F @ 56%
February, May, August, November
The facility has passed 13 WET tests and failed 5 tests.
COMPLIANCE HISTORY
The City had a mixed compliance record during the previous permit cycle. In 2003 eight Notices of
Violation (NOV) were issued for violating toxicity and BOD limits. In 2002 only one NOV was
issued for violating toxicity limit. In 2001 two NOVs were issued for violating toxicity limit. In 2000
two NOVs were issued for violating toxicity limit .
REASONABLE POTENTIAL ANALYSIS
The following parameters are monitored through the permit: Ag, Cd Pb, Hg, Ni, Phenols, Cr, Cu,
Zn. The following parameters are monitored quarterly through the pretreatment program: As, Cd,
Cr, Cu, Pb, Hg, Mo, Ni, Se, Zn, CN. The permit will continue to require the City to implement its
pretreatment program.
Reasonable potential analysis was conducted for: Ag, As, Cd, CN, Cu, Cr, Phenol, Hg, Ni, Pb, Se,
and Zn (see attached).
PROPOSED CHANGES:
• Limits: Based on the Reasonable Potential Analysis, limits are being introduced for mercury,
and phenols. In addition, weekly average limits for ammonia nitrogen, and daily maximum limit
for total residual chlorine have been added to the permit.
• Priority pollutant monitoring on an annual basis has been added to fulfill the permit application
requirement in the future.
Existing permit limits and recommended limits/monitoring are summarized in the table below:
Parameter
Existing Limit
(µg/L)
Existing . _
Monitoring
Proposed Limit
(µg/L)
Proposed
Monitoring
Mercury
None
2/Month
0.021
2/Month
Phenols
None
2/Month
1.8
2/Month
The existing monitoring frequency for zinc and copper remains unchanged. Due to the facility's
toxicity record, limits for these action level standards will not be implemented, but monitoring will
remain.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: February 18, 2004 (est.)
Permit Scheduled to Issue: April 14, 2004 (est.)
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please contact
Sergei Chernikov at [phone] ext. 594.
2

Permit NC0055786
Changes to the final permit:
1) Phenols limit was increased to 3.1 ug/L from 1.8 ug/L to correct an RPA error.
2) Implementation date for phosphorus limits was delayed to November 1, based on the
request of the facility operator and due to the construction delays.
REGIONAL OFFICE COMMENT:
NAME: DATE:
EPA COMMENT:
NAME: DATE:

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
1WC (%) _
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Mercury
Max. Pred Cw
Allowable Cw
0.035
0.021
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0035
0.005
0.7280
16
2.935
0.012 µg/1
0.035 pg/1
0.021 pg/1
cNtl
Parameter =
Standard =
Mercury
0.012
Date n < Actual Data BDL=1/2DL
1 0.01160 0.01160
2 0.00377 0.00377
3 0.00339 0.00339
4 0.00242 0.00242
5 0.00976 0.00976
6 0.00313 0.00313
7 < 0.00100 0.00050
8 0.00190 0.00190
9 0.00416 0.00416
10 0.00382 0.00382
11 0.00247 0.00247
12 0.00434 0.00434
13 0.01190 0.01190
14 0.00288 0.00288
15 0.00834 0.00834
16 0.00302 0.00302
o LI j'Aj

Facility Name =
NPDES # =
Qw (MGD) =
3oq 2..._ 0 (ors)=
IWC(%) _
Lexington
NC0055786-001
5.5
18
32.14
FINAL RESULTS
Phenol
Max. Pred Cw
Allowable Cw
22.3
3.1
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
1.7508
1.8
1.0004
24
3.19
7.0 µg/1
22.3 µg/1
3.1 µg/1
Allowp,-I_IL
Parameter =
Standard =
Date n < Actual Data
1 < 2.00
2 2.00
3 < 2.00
4 < 2.00
5 < 2.00
6 < 2.00
7 < 2.00
8 2.00
9 < 2.00
10 < 2.00
11 < 2.00
12 < 2.00
13 < 2.00
14 < 2.00
15 < 2.00
16 2.00
17 < 2.00
18 4.00
19 < 2.00
20 < 2.00
21 7.00
22 7.00
23 < 2.00
24 < 2.00
Phenol
1.0
BDL=1/2DL
1.00
2.00
1.00
1.00
1.00
1.00
1.00
2.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
2.00
1.00
4.00
1.00
1.00
7.00
7.00
1.00
1.00

Facility Name =
NPDES#=
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Silver
Max. Pred Cw
Allowable Cw
2.50
0.11
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Malt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
2.5
0.0000
12
1.00
2.50 µg/1
2.50 µg/1
0.11 µg/1
Parameter =
Standard =
Silver
0.06
Date n < Actual Data BDL=1/2DL
1
<
5
2
3
4
5
6
7
8
9
10
11
12
<
5
5
5
5
5
<
5
<
5
<
5
5
<
5
5
2.50
2.50
2.50
2.50
2.50
2.50
2.50
2.50
2.50
2.50
2.50
2.50
µg/1

Facility Name =
NPDES # =
Cow (MGD) =
7QIDs (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Arsenic
Max. Pred Cw
Allowable Cw
5.00
89.3
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
5.0
0.0000
6
1.00
5.0 µg/1
5.00 µg/1
89.3 µg/1
Parameter =
Standard =
Date n < Actual Data
1 < 10.0
2 < 10.0
3 < 10.0
4 < 10.0
5 < 10.0
6 < 10.0
sl-c,,,ko rt- ws 10,63i
N9
11 1"-:+__
Arsenic
50.0
BDL=1/2DL
5.0
5.0
5.0
5.0
5.0
5.0
µg/1

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Cadmium
Max. Pred Cw
Allowable Cw
1.0
3.6
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
1.0
0.0000
14
1.00
1.0 µg/l
1.0 µg/1
3.6 µg/1
Date
Parameter =
Standard =
Cadmium
2.0
n < Actual Data BDL=1/2DL
AA, ii-v4
1 <
2 <
3 <
4 <
5 <
6 <
7 <
8 <
9 <
10 <
11 <
12 <
13 <
14 <
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
µgll

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
!WC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Cyanide
Max. Pred Cw
Allowable Cw
5.0
8.9
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
5.0
0.0000
12
1.00
5.0 µg/1
5.0 µg/1
8.9 µg/1
Parameter =
Standard =
Cyanide
5.0
Date n < Actual Data BDL=I/2DL
1 < 10 5.0
2 < 10 5.0
3 < 10 5.0
4 < 10 5.0
5 < 10 5.0
6 < 10 5.0
7 < 10 5.0
8 < 10 5.0
9 < 10 5.0
10 < 10 5.0
11 < 10 5.0
12 < 10 5.0
AGvAt- -- "11 ) LI
A/0 1C "" '
µO

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Copper
Max. Pred Cw
Allowable Cw
55.8
12.5
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mull Factor =
Max. Value
Max. Pred Cw
Allowable Cw
8.3231
18.3
0.4543
12
2.23
25.0 µg/1
55.8 µg/1
12.5 µg/1
N°
Parameter =
Standard =
Date n < Actual Data
BDL=1/2DL
1
2
3
4
5
6 <
7 <
8 <
9 <
10 <
11 <
12 <
9.46
6.78
10.7
7.4
10.53
50
50
50
50
50
50
50
9.5
6.8
10.7
7.4
10.5
25.0
25.0
25.0
25.0
25.0
25.0
25.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q1Os (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Chromium
Max. Pred Cw
Allowable Cw
26.4
89.3
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
3.8620
6.9
0.5617
12
2.64
10.0 µg/I
26.4 µg/1
89.3 µg/1
Date
Parameter =
Standard =
Chromium
50.0
n < Actual Data BDL=1/2DL
1
2
3
4
5
6
7
8
9
10
11
12
5
5
5
5
5
20
20
20
20
20
20
20
i^^Ae — /toZ2J J/‘/'
�U
2.5
2.5
2.5
2.5
2.5
10.0
10.0
10.0
10.0
10.0
10.0
10.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
1WC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Nickel
Max. Pred Cw
Allowable Cw
10.000
157.2
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
10.0
0.0000
14
1.00
10.000 µg/1
10.000 µg/1
157.2 µg/1
Date
n <
Parameter =
Standard =
Actual Data
Nickel
88.0
BDL=1/2DL
1 < 20 10.000
2 < 20 10.000
3 < 20 10.000
4 < 20 10.000
5 < 20 10.000
6 < 20 10.000
7 < 20 10.000
8 < 20 10.000
9 < 20 10.000
10 < 20 10.000
11 < 20 10.000
12 < 20 10.000
13 < 20 10.000
14 < 20 10.000

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Lead
Max. Pred Cw
Allowable Cw
10.0
44.648
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
10.0
0.0000
20
1.00
10.0 µg/1
10.0 µg/1
44.6 /to
Date
Parameter =
Standard =
n < Actual Data
Lead
25.0
BDL=1/2DL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Atm-t--- )1,
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
µg/1

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Selenium
Max. Pred Cw
Allowable Cw
5.0
8.9
1RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.0000
5.0
0.0000
5
1.00
5.0 µg/1
5.0 µg/1
8.9 µg/1
Parameter =
Standard =
Selenium
5.0
Date n < Actual Data BDL=1/2DL
1
2
3
4
5
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
µlb

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) =
Lexington
NC0055786-001
5.5
6.7
55.99
FINAL RESULTS
Zinc
Max. Pred Cw
Allowable Cw
Allowable #/day
65.7
89.3
0.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
Mult Factor =
Max. Value
Max. Pred Cw
Allowable Cw
7.0698
28.7
0.2467
21
1.43
45.9 µg/1
65.7 µg/1
89.3 µg/1
Parameter =
Standard =
Zinc
50.0
Date n < Actual Data BDL=1/2DL
1
2
3
4
5
6
7 <
8 <
41.6
32.7
45.9
38.3
43.2
50
41
9 <
10
11 <
12 <
13 <
14 <
15 <
16 <
17
18
19 <
20 <
50
50
50
50
50
50
50
50
50
50
50
50
50
50
21 < 50.0
41.6
32.7
45.9
38.3
43.2
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
µg/1

NC0055786 Lexington
Upstream
Downstream
Date
Temp D.O. Conductivity
(QC) (mg/L) umhos/cm)
Temp D.O. Conductivity
(QC) (mg/L) umhos/cm)
06/03/1998
06/10/1998
06/18/1998
06/25/1998
07/01/1998
07/08/1998
07/14/1998
07/21/1998
07/28/1998
08/06/1998
08/11/1998
08/19/1998
08/28/1998
09/08/1998
09/09/1998
10/08/1998
10/16/1998
11/18/1998
12/01/1998
01/05/1999
02/02/1999
03/12/1999
04/09/1999
05/05/1999
05/14/1999
05/18/1999
05/24/1999
06/04/1999
06/10/1999
06/14/1999
06/21/1999
07/01/1999
07/09/1999
07/13/1999
07/19/1999
07/26/1999
08/05/1999
08/13/1999
08/16/1999
08/23/1999
08/30/1999
09/10/1999
09/14/1999
09/20/1999
09/29/1999
10/15/1999
23.0 5.4 219 28.0 8.5 162
21.0 6.7 21.0 5.4
24.0 6.1 23.5 6.8
26.0 5.7 29.0 9.1
25.5 5.7 30.0 9.4
26.0 6.4 30.0 9.8
24.0 5.8 367 27.0 8.2 202
28.0 3.4 29.5 8.8
26.5 5.6 27.0 6.6
23.0 6.4 327 26.5 8.4 367
24.5 5.9 25.0 5.1
26.5 5.7 433 31.0 9.8 215
25.0 5.0 30.0 13.4
24.0 6.0 210 26.5 11.8 309
23.5 6.3 26.0 10.9
21.0 6.6 485 22.9 6.1 459
12.0 6.6 440 15.5 6.1 522
11.5 6.8 458 13.0 7.2 421
10.0 10.4 399 12.0 11.5 436
2.0 10.7 130 2.0 11.3 130
6.5 10.1 195 7.0 9.6 171
6.0 13.6 234 6.5 15.0 242
18.5 9.5 201 19.5 9.9 194
16.7 7.8 160 17.6 7.7 140
17.8 7.1 19.9 6.3
19.6 8.5 156 19.0 7.6 132
22.0 6.7 23.8 8.3
20.0 5.6 24.5 11.9
23.5 3.5 409 28.1 10.1 246
23.3 4.8 438 27.5 11.2 261
18.5 7.2 20.9 5.6
24.6 5.0 28.6 8.2
22.5 5.4 24.5 8.9
20.9 5.6 253 23.6 3.3 165
25.4 5.1 251 30.4 11.1 161
26.3 3.8 29.3 7.9
24.2 4.8 418 26.9 7.8 295
25.6 6.1 27.3 8.1
25.4 5.4 135 24.3 4.1 178
19.5 7.0 21.5 6.4
21.0 5.8 21.0 6.0
20.0 4.4 21.5 6.0
16.0 1.8 241 19.0 5.8 197
17.0 4.7 186 18.0 7.4 139
18.0 7.8 18.0 6.8
16.6 8.1 152 16.7 7.5 152

11/05/1999 9.5 7.7 219 10.7 7.0 255
12/03/1999 5.1 9.3 219 5.7 8.9 225
01/14/2000 6.9 9.9 161 6.6 10.3 159
02/16/2000 7.8 10.6 138 8.4 10.0 136
03/21/2000 11.6 9.0 108 11.8 8.8 112
04/18/2000 15.7 7.4 140 17.4 9.7 151
05/05/2000 18.2 3.2 184 20.0 4.9 162
05/12/2000 19.5 7.5 23.4 10.5
05/18/2000 21.3 7.1 348 24.7 14.1 280
05/25/2000 22.2 5.0 23.5 5.8
06/02/2000 22.3 6.0 23.7 9.7
06/09/2000 19.0 5.9 264 23.1 8.9 256
06/16/2000 21.3 5.9 19.9 6.5
06/22/2000 25.4 5.5 425 27.1 8.9 368
06/30/2000 22.7 6.5 23.8 7.0
07/08/2000 22.8 7.4 25.4 7.1
07/14/2000 24.0 6.5 27.5 5.6
07/21/2000 23.6 5.5 417 25.5 5.0 294
07/24/2000 22.3 6.6 24.1 8.3
08/03/2000 23.9 6.2 25.5 5.5
08/11/2000 25.6 5.3 27.2 5.4
08/16/2000 24.0 6.1 341 27.5 7.1 233
08/23/2000 22.9 6.7 450 26.3 6.3 395
09/01/2000 24.5 5.5 26.9 5.2
09/05/2000 22.7 5.6 22.7 4.9
09/13/2000 23.1 6.4 24.0 5.4
09/22/2000 20.1 6.1 184 20.8 5.7 185
09/25/2000 21.5 6.6 179 22.9 6.2 258
10/17/2000 14.2 9.4 448 17.5 9.2 454
11/07/2000 12.2 8.8 412 13.8 8.8 424
12/13/2000 4.5 13.9 420 5.4 13.3 380
01/04/2001 0.9 13.7 359 2.6 13.5 362
02/13/2001 6.9 11.7 268 7.6 11.4 294
03/06/2001 8.8 11.3 163 9.7 11.8 177
04/04/2001 11.9 9.4 138 12.7 9.2 128
05/01/2001 18.4 6.9 24.7 7.1
05/07/2001 20.3 5.3 327 23.2 5.4 293
05/16/2001 18.3 5.2 25.0 8.0 310
05/24/2001 22.6 5.6 282 21.2 6.1
05/30/2001 21.7 5.9 29.3 12.7 224
06/04/2001 22.5 5.5 195 28.1 15.7
06/11/2001 22.5 5.1 33.2 13.8 269
06/21/2001 27.8 6.1 300 26.5 9.0
06/27/2001 25.0 5.8 27.2 4.4
07/02/2001 24.4 5.1 29.5 7.8 241
07/17/2001 24.0 6.9 332 26.3 7.2 362
07/24/2001 24.8 6.8 328 22.5 6.2
07/30/2001 23.1 6.3 25.8 5.1 340
08/07/2001 25.7 5.1 409 26.9 4.0
08/13/2001 26.1 5.1 25.8 5.2 258
08/21/2001 24.6 5.2 276 26.5 5.2
08/27/2001 25.9 5.4 23.7 3.0

4.
09/04/2001
09/11/2001
09/17/2001
09/25/2001
10/09/2001
11/13/2001
12/04/2001
01/15/2002
02/12/2002
03/05/2002
04/09/2002
05/07/2002
05/14/2002
05/21/2002
05/29/2002
06/04/2002
06/11/2002
06/20/2002
06/27/2002
07/01/2002
07/09/2002
07/16/2002
07/25/2002
08/06/2002
08/13/2002
08/21/2002
08/27/2002
09/03/2002
09/10/2002
09/19/2002
09/24/2002
10/08/2002
11/05/2002
12/03/2002
1/7/2003
2/11/2003
3/18/2003
4/8/2003
5/6/2003
5/13/2003
5/20/2003
5/28/2003
6/3/2003
6/10/2003
6/17/2003
6/24/2003
7/15/2003
7/29/2003
8/12/2003
23.1 4.6 25.9 5.7 500
23.3 5.1 424 20.4 5.3
19.9 5.4 20.0 5.2 272
19.5 5.5 302 10.2 9.9 398
11.5 6.5 318 10.5 8.8 402
10.0 10.0 406 5.7 8.7 239
10.4 8.9 414 7.9 9.6 182
5.5 8.9 251 5.9 9.1 163
7.6 9.9 104 15.4 7.2
5.8 9.4 96 17.6 5.8 241
15.0 7.6 23.0 5.4
17.0 6.1 173 16.0 6.8
19.7 6.1 21.5 6.2 171
15.6 7.1 25.1 5.5
21.1 6.4 104 22.0 5.6 261
24.6 5.8 24.6 5.3
21.6 6.0 203 24.3 5.3 124
23.9 5.7 28.6 4.7
24.0 5.6 69 24.1 5.4 107
28.1 5.2 28.8 5.1
23.8 5.7 69 24.4 5.3 112
28.3 5.3 26.0 5.3 103
24.0 5.5 56 26.4 5.2
25.7 5.5 62 28.5 3.8 219
26.2 5.5 24.7 5.5
28.1 5.4 106 23.4 5.4
24.6 5.8 21.8 5.6 273
23.1 5.8 23.2 5.7
21.6 6.0 190 22.3 5.4 158
22.9 6.0 20.8 5.9 191
21.6 5.7 106 13.8 8.0 294
20.2 6.1 146 6.6 8.7 214
13.6 8.4 320 5.7 8.5 183
6.4 8.9 238 5.8 9.5 166
5.4 8.6 212 12.0 9.0 135
5.6 9.3 206 13.5 9.6 119
12.6 9.5 117 16.5 9.3
13.8 9.9 106 18.1 8.1 138
16.8 9.6 16.7 7.5
18.3 8.3 124 18.6 7.4 138
16.8 7.6 18.0 8.7
18.7 7.5 124 19.2 8.2 109
18.1 8.5 20.2 8.3
19.4 8.3 96 20.1 8.2 126
20.3 8.5 22.7 7.1 137
20.2 8.5 112 24.6 6.5 118
22.8 7.3 121 22.4 8.3 117
24.6 7.0 104 24.7 5.9 129
22.3 8.7 92 20.0 7.1 135
Average
Maximum
Minimum
19.47
28.30
0.90
6.82
13.88
1.80
243.02
485.00
56.00
21.02
33.20
2.00
7.70
15.68
3.00
232.80
522.00
103.00

Whole Effluent Toxicity Testing Self -Monitoring Summary January 15, 2004
FACILITY REQUIREMENT YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Laurinburg Maston Airport -Laurel Hill chr lim: 1.5% Y 2000 - - Pass - - Pass - - Pass - - Pass
NC0005479/001 Begin:12/I/1999 Frequency Q P/F Mar Jun Sep Dec + NonComp Single 2001 - - Pass - - Pass - - Pass - - Pass
County:Scotland Region: FRO Subbasin: LUMSS 2002 - - Pass - - Pass - - Pass - - Pass
PF: 0.3 Special 2003 - - Pass - - Pass - - Pass - -
7Q10: 31.0 IWC(%;1.5 2004
Laurinburg WWTP chr lim: 31% 2000 - >60 - - Pass - - Invalid Pass - Pass
NC0020656/001 Begin:3/1/2001 Frequency Q Feb May Aug Nov + NonComp Single 2001 - Pass - - Pass - - Pass - - Pass
County:Scotland Region: FRO Subbasin: LUM55 2002 - Pass - - Pass - - Pass - - Pass
PF: 4.0 Special 2003 - Pass - - Pass - - Pass - - Pass
7Q10: 13.8 1 WC(%; 31 2004
Laurinburg-Maston Airport chr lim: 1.3%; if pf 2MGD chr lim 2.6% i 2000 - - Pass - - Pass - - Pass - - Pass
NC0044725/001 Begin:3/I/2000 Frequency Q Mar Jun Sep Dec + NonComp Single 2001 - - Fail 1.84 3.68 Pass - - Pass - - Pass
County:Scotland Region: FRO Subbasin: LUM51 2002 - - Pass - - Pass - - Pass - - Pass
PF: 1.0 Special 2003 - - Pass - - Pass - - Pass - -
7Q10: 111.0 1 WC(%;1.38 2004
LCP Plastics, Inc. fathead 24h LC50 ac cpis disc 2000 - H - - H
NC0036366/001 Begin:3/1/2003 Frequency Q P/F + Feb May Aug Nov NonComp Single 2001 - H - - H
County:Guilford Region: WSRO Subbasin: CPF08 2002 - H - - H
PF: NA Special 2003 - H - - H
7Q10: 0.00 IWC(%;100 2004
H - - H
H - - H
H - - H
H - - H
Leland industrial Park WWTP 24hr p/f ac lim: 90% fthd 2000 - - Fail Fail NR/Fail NR/Pass - - Invalid - Pass Pass
NC0065676/001 Begin:9/1/1996 Frequency Q + Mar Jun Sep Dec NonComp Single 2001 - - Pass - - Pass - - Late Pass - Pass
County:Brunswick Region: WIRO Subbasin: CPF17 2002 - - Pass - - Pass - - Fall Fall Fall Fail
PF: 0.25 Special 2003 pass - Fall Fail Fail Fall Pass - Pass - - Pass
7Q10: 600 1 WC(%; 0.065 2004
Lenoir- Gunpowder Creek WWTP chr lim: 52%
NC0023736/001 Begin: I/1/2001 Frequency Q Mar Jun Sep Dec + NonComp Single
County: Caldwell Region: ARO Subbasin: CTB32
PF: 2.0 Special
7Q10: 3.0 IWC(%; 52.0
2000 - Pass Pass - - Pass - - Pass - - Pass
2001 - - Pass - - Pass - - Pass - - -
2002 - - Pass - - Pass - - Pass - - Pass
2003 - - Pass - - Pass - - Pass - - Pass
2004
Lenoir- Lower Creek WWTP chr lim: 44%
NC0023981/001 Begin:6/I/2001 Frequency Q Feb May Aug Nov + NonComp Single
County: Caldwell Region: ARO Subbasin: CTB31
PF: 6.0 Special
7Q10: 11.75 I WC(%; 44
2000 - Pass - - Pass - - Pass - - Pass
2001 - Pass - - Late Pass - Pass - - Pass
2002 - Pass - - Pass - - Pass - - Pass
2003 - Pass - - Pass - - Pass - - Pass
2004
Lexington Regional WWTP CHR LIM: 56°A° M 2000 - Pass - - Pass - - Fall>90 39.6 >90,Passt Pass
NC0055786/001 Begin:3/l/2002 Frequency Q Feb May Aug Nov + NonComp SINGLE 2001 - Pass - - Fail >90(s),19.8 64.8(s) Pass - - Pass
County: Davidson Region: WSRO Subbasin: YADO7 2002 - Pass - - Pass - - Fall >90 >90 Pass -
PF: 5.5 Special 2003 - Pass - - Fail 19.8.39.6t >90.39.61 Pass.39.6t 82.2 >90 Fa11.>90 a90
7Q10: 6.7 I WC(%; 56 2004
Libbey-Owens Ford Co. 24 hr p/f ac lim: 90% fthd (grab)
NC0049514/001 Begn:12/1/1999 Frequency Q P/F + Jan Apr Jul Oct
County: Scotland Region: FRO Subbasin: LUM55
PF: VAR Special
7Q10: 0.0 IWC(%; 100
+ NonComp Single
2000 Late Pass - Pass - - Pass - - Pass
2001 Pass - - Pass - - H - - H
2002 H - - Pass - - Pass - - Pass
2003 Pass - - Pass - - Pass - - Pass
2004
Linco!nton WWTP chr lim: 11 %
NC0025496/001 Begin:11/1/2002 Frequency Q Mar Jun Sep Dec
County: Lincoln Region: MRO Subbasin: CTB35
PF: 6.0 Special
7Q10: 77.0 I WC(%;11.0
+ NonComp Single
2000 - - Pass - - Pass - - Pass - - NR/Pass
2001 - - Pass - - Fall >30 14.8 Fail 24.5 24.5 14.8
2002 - - 29.7 - - >33 - - Pass - - Pass
2003 - - Pass - - Pass - - Pass - - Pass
2004
Linville Resorts, Inc. chr lim: 7%; if exp to 0.15 chr lim 10% 2000 - - - - - - - - - -
NC0039446/001 Begin:12/1/2000 Frequency Q Jan Apr Jul Oct + NonComp Single 2001 Pass - - Pass - - Pass - - Pass
County: Avery Region: ARO Subbasin: CTB30 2002 Pass - - Pass - - Pass - - Pass
PF: 0.10 Special 2003 Pass - - Pass - - Pass - - Pass
7Q10: 2.1 1 WC(%;10.0 2004
i Pre 2000 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 = Receiving stream low flow criterion (cfs + = quarterly monitoring increases to monthly upon failure or N Months that testing must occur - ex. Jan, Apr, Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IWC% = Instrcam waste concentrati P/F = Pass/Fail tat AC = Acute CHR = Chronic
Data Notation: f - Fathead Minnow; • - Ccriodaphnia 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 reportc Facility Activity Status: 1. Inactive, N - Newly Issucd(To construct); H - Active but not discharging; t-More data available for month in question; • = ORC signature needed
27

Ja�SEO sr,i/s
24Ari% "'
w
O kS11111V4 O
z e
o�"It Prio16'
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION 4
ATLANTA FEDERAL CENTER
61 FORSYTH STREET
ATLANTA, GEORGIA 30303-8960 ;,,-
JUN 0 7 2004
Sergei Chemikov, Ph.D
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
2
JUN \ 2003
OG;q 50;;;1� �=
SUBJ: Draft NPDES Permit
City of Lexington WWTP - Permit No. NC0055786
Dear Dr. Chernikov:
In accordance with the EPA/NCDENR MOA, we have completed review of the draft permit
referenced above and have no comments. We request that we be afforded an additional review
opportunity only if significant changes are made to the draft permit prior to issuance or if significant
comments objecting to the permit are received. Otherwise, please send us one copy of the final permit
when issued.
Sincerely,
Marshall Hyatt, Environmental Scientist
Permits, Grants, and Technical Assistance Branch
Water Management Division
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30 / Postconsumer)

•
THE CITY OF
NORTH
LEXINGTON
CAROLINA
COPY
"SERVING THE COMMUNITY SINCE 1828"
28 WEST CENTER STREET TELEPHONE [phone]
LEXINGTON, NC 27292
March 17, 2004
Mr. Sergei Chernikov, Ph.D.
N.C. DENR
NPDES Unit
1617 Mail Service Center
Raleigh, N.C. 27699-1617
Re:
City of Lexington
Davidson County
Lexington Regional WWTP
Permit #NC0055786
Subject: Comments on Draft NPDES Permit
Dear Mr. Chernikov:
We have reviewed the above referenced permit and would like to make the following comments and
requests:
1. Priority Pollutant Scans and Second Species Toxicity tests: these will be completed
in March. We may not have the results of the final priority pollutant analyses until
April. I am attaching the three competed series of each test to this letter. The fourth
series of each will be forwarded when we receive them.
2. We are requesting that implementing phosphorous limits be delayed until winter limits
begin in November. This is due to construction delays. In support of this, I am
attaching an inspection report by Mr. Steve Mauney of the WSRO and a letter from
51All 1 y 2U. Keith West of J.N. Pease Associates.
3. We are requesting that the daily maximum limit for mercury be dropped. In support
of this, I am attaching copies of our DMR's starting in September 2003.
4. We are requesting that the permitted flow be increased to 6.5 MGD. An application
for "major permit modification" has been filed separately.

Page 2
City of Lexington
Permit #NC0055786
Thank you for your consideration of these matters. If I can answer any questions regarding this, .
please contact me at 3 3 6-248-3 970 or at rogers®lexingtonnc.net.
Sincerely,
40e-t-d---
Roger Spach
RS/kb
Attachments:
cc: Rick Austin, Public Works Director
Steve Mauney, WSRO
Gisele Comer, Pretreatment Coordinator
Ken Cupp, Utility Plant Supervisor
R.B. Smith, City Attorney

imap://sergei.chernikov %40dwq.denr.ncmai l.net @cros.ncmai l.net:143...
Subject: Draft Permit Reviews (4)
From: John Giorgino <[e-mail]>
Date: Wed, 25 Feb 2004 10:16:04 -0500
To: sergei chernikov <[e-mail]>
Sergei, I reviewed the following draft permits:
NC0055786 Lexington Regional WWTP - No Comments
NC0079898 Needmore Road Landfill - No Comments
NC0086487 Albemarle Facility - Section A(2), Chronic Toxicity does not contain the "new" EPA
language. first test of any single quarter results in a failure multiple -concentration testing shall
be performed Please see the 3rd paragraph of the above 2 facilities. Those are correct.
NC0085871 Flakt Products - Section A(2), Chronic Toxicity does not contain the "new" EPA
language. first test of any single quarter results in a failure multiple -concentration testing shall
be performed Please see the first 2 facilities for the correct language, 3rd paragraph.
-John
John Giorgi o
Environment .1 Biologist
North Carol na Division of W. er Quality
Aquatic Toy. cology Unit
Mailing Adc', ess:
MSC
Raleigh., NC 276 -1621
Office: 919 733-2136
Fax: [phone]
Email: Johr..Giorgino@ncnail . - t
Web Pace: h..tp://ww.esb.enr rtate.nc.us
1 of 1 4/14/2004 10:43 AM

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Govemor
William G. Ross, Jr., Secretary
Alan W. Klimek, RE., Director
MEMORANDUM
To:
From:
Subject:
February 18, 2004
Lee Spencer
NC DENR / DEH / Regional Engineer
Winston-Salem Regional Office
Sergei Chernikov
NPDES Unit
Review of Draft NPDES Permit NC0055786
Davidson County
AVA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
N.C. De t. of EHNP
FEB 2 0 2004
Regionai uii:C t'
Please indicate below your agency's position or viewpoint on the draft permit and retum this form by
March 26, 2004. If you have any questions on the draft permit, please contact me at the telephone
number or e-mail address listed at the bottom of this page.
RESPONSE: (Check one)
Concur with the issuance of this permit provided the facility is operated and maintained properly, the
stated effluent limits are met prior to discharge, and the discharge does not contravene the
designated water quality standards.
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed 4ie- - Date: 23
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 594 (fax) 919 733-0719
Visrr US ON THE INTERNE @ http:Uh2o.enr.state.nc.us/NPDES Sergei.Chernikov@ ncmail.net

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 thor-
ough staff review and
application of -NC Gen-
eral Statute 143.21
Public Law 92-500 and
other lawful standards
and regulations, the
North Carolina Environ-
•mentai Management
Commission proposes
to issue a National Pol-
lutant Discharge Elimi-
nation System (NPDES)
wastewater discharge
permit to the person(s)
listed below effective
45 days from the pub-
lish date of this notice.
STATE OF NORTH CAROLINA
DAVIDSON COUNTY
Written comments re-
garding the proposed
permit will be accepted
until 30 days after the
publish date of this no-
tice. All comments re-
ceived prior to that
date are considered in
the final determinations
regarding the proposed
permit The Director of
the NC Division of Wa-
ter Quality may decide
to hold a public meet-
ing for the proposed
permit should the Divi-
sion receive a signifi-
cant degree of public
interest.
Copies of the draft per-
mit and other support-
ing information on file
used to determine con-
ditions present in the
draft permit are availa-
ble upon request and
payment of the costs of
reproduction. Mail com-
ments and/or requests
for information to the
NC Division of Water
Quality at the above
address or call Ms. Va-
lery Stephens at (919)
733-5083, extension
520. Please included
the NPDES permit num-
ber (attached) in any
communication. Inter-
ested persons may also
visit the Division of Wa-
ter Quality at 512 N.
Salisbury Street, Ra-
leigh, NC 27604-1148
between the hours of
8:00 a.m. and 5:00 p.m.
to review information
on file.
The City of Lexington
(28 West Center Street,
Lexington, NC 27292)
has applied for renewal
for NPDES permit
NC0055786 for the Lex-
ington Regional WWTP
in Davidson County.
This permitted treatedfacility
discharges
wastewater to the Ab-
botts Creek in the Yad-
kin Pee -Dee River Ba-
sin. Currently BOD, am-
monia, nitrogen, total
phosphorus,
mercury, phenols and
total residual
chlorine
are water quality may
limit-
ed. This discharge
affect future
allocations
f thes
in this portion
Yadkin Pee -Dee River
Basin.
Willow Creek Holding
LLC in High Point, NC
, has applied for renewal
of NPDES permit
NC0034452 for its Wil-
low Creek wastewater
treatment plant in
Da-
vidson County. This
permitted facility
dis-
charges treated waste-
waters Creek
itheYadkin no ttPee-Dee
river Basin. Currently,
ammonia, nitrogen,
BOD, and total residual
chity lie are mited. water qul-
This dis-
charge may affect fu-
ture allocations in this
portion of the water-
shed.
February 20, 2004
AFFIDAVIT OF PUBLICATION
Lexington,N-C-
Less iL
o
2004
of THE DISPATCH, a newspaper published in the city of
Lexington, County and State aforesaid, being duly
which the attached is a true copy,
day of
c-
<<°�„� nuiuuu�yw�► )
N pp
Sworn to a., ai'dPsi Scrib t 4i e me, this G day of
,S) i\oTAq�•; m
sworn, says the foregoing legal of
was published in said newspaper once the
2004. ,j•
Publication Fee $
• -
� }
"•. ( L5 (1 f My conmission� expires
nJ^}in troinn1101.4`
MAR 8 2004
,
(Seal)
2

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 Stat-
ute 143.21, Public law 92-500 and other lawful standards and regula-
tions. the North Carolina Environmental Management Commission pro-
poses to issue a National Palkrtant Discharge Elimination System
(NPDES) wastewater discharge permit to the person(s) listed below ef-
fective 45 days from the publish date of this notice.
Written comments regarding the proposed permit will be accepted until
30 days after the publish date of this notice. All comments received prior
to that date are considered in the final determinations regarding the pro-
posed permit. The Director of the NC Division of Water Quality may de-
cide to hold a public meeting for the proposed permit should the Division
receive a significant degree of public interest.
Copies of the draft permit and other supporting information on file used
to determine conditions present in the draft permit are available upon re-
quest and payment of the costs of reproduction. Mail comments and/or
requests for information to the NC Division of Water Quality at the above
address or call Ms. Valery Stephens at [phone], extension 520.
Please include the NPDES permit number (attached) in anycommunica-
tion. Interested persons may also visit the Division of Water Quality at
512 N. Salisbury Street, Raleigh, NC 27604-1148 between the hours of
B:00 a.m. and 5:00 p.m. to review information on file.
The City of Lexington (28 West Center Street, Lexington, NC 27292)
has applied for renewal o1 NPDES permit NC0055786 for the Lexington
Regional WWTP in Davidson County. This permitted facility discharges
treated wastewater to the Abbotts Creek in the Yadkin Pee -Dee River Ba-
sin. Currently BOD, ammonia nitrogen, total phosphorus, cyanide, mer-
cury, phenols and total residual chlorine are water quality limited. This
discharge may affect future allocations in this portion of the Yadkin Pee -
Dee River Basin.
Willow Creek Holdings, LLC In High Point, NC has applied for renewal
of NPDES permit NC0034452 for its Willow Creek wastewater treatment
plant in Davidson County. This permitted facilAy discharges treated
wastewater to Abbotts Creek in the Yadkin -Pee Dee River Basin. Cur-
rently, ammonia nitrogen, BOD, and total residual chlorine are water
quality limited. This discharge may affect future allocations in this portion
of the watershed.
The Flak! Products, Inc. (501 Merrlt 7, Norwalk, CT 18252) has applied
for renewal of NPDES permit N00085871 for the Flal4 Product Remedia-
tion Site in Forsyth County. This permitted facility discharges treated
wastewater to the Brushy Fork in the Yadkin Pee -Dee River Basin. Cur-
rently total suspended solids are water quality limited. This discharge
may affect future allocations In this portion of the Yadkin Pee -Dee River
Basin.
WSJ: February 21, 2004
WINSTON-SALEM JOURNAL PROOF
Customer:
Address:
Ad Number:
Insert Dates:
NCDENR/DWQ/NPDES Contact: FAX / VALERY Phone: [phone]
1617 MAIL SERVICE CENTER ATTN: VALERY STEPHENS
RALEIGH NC 276991617
480349
02/21(f4004
Price: 294.78
Section: CL Class: 99; LEGALS Size: 2 x 51.00
Printed By: KSAPP Date: 02/19/2004 For: 9999
Signature of Approval: Date:
MAR 3 2004

Michael F. Easley, Govemor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Date: October 10, 2002.
MEMORANDUM
Mike Templeton, NPDES Unit.
From: Narayan Rajbhandari, Modeling/TMDL Unit.
CC: Michelle Woolfolk, Modeling/TMDL Unit.
Boyd Devane, Planning Branch.
Callie Dabson, Basinwide Unit
Subject: Responses of Phosphorus in Abbotts Creek, Yadkin -Pee Dee River Basin.
As per our meeting on September 16, 2002, I have summarized below the mass limits in the Yadkin Basin Plan
(Table 1) and the responses of Total Phosphorus (TP) in Abbotts Creek (High Rock Lake arm), Yadkin -Pee Dee
River Basin. The summarization is based on the monitoring data collected during 1999 through 2001 from the
WWTPs at High Point, Thomasville, and Lexington and from the Ambient DWQ Stations at SR 1243
(Q5930000) and NC 47 near Cotton Grove (Q597000). The spatial location of the monitoring sites is presented
in Figure 1.
Table 1. Recommended Mass Load of Total Phosphorus (TP) from the West Water Treatment Plants in the
Abbotts Creek. (Source: Yadkin -Pee Dee River Water Quality Management Plan — May 1998).
WWTP
Winter (kg)
Summer (kg)
Annual (kg)
High Point (6.2 mgd)
3624
2568
6192
Thomasville (4.0 mgd)
3020
2140
5160
Lexington (5.5 mgd)
2416
1712
4128
TP responses in Waste Water Treatment Plants (WWTPs):
The WWTPs at High Point, Thomasville, and Lexington respectively discharged average annual TP
concentration of 1.31, 3.49, and 2.90 mg/L (Table 2). The average annual concentration rates were slightly
higher during summer (April through October). The annual mass loads of TP from these WWTPs were
estimated to be 6352 kg, 13494 kg, and 10923 kg respectively. The mass load during summer was about 37%
less. With the exception of the High Point WWTP, the mass load of TP from the WWTPs were substantially
higher than the Water Quality Management Plan's recommended load for Thomasville WWTP and Lexington
WWTP (Table 2).
There is a clear trend of increasing the phosphorus load from these WWTPs when flow rates are increased.
A sensitivity analysis is performed to examine the possible increase in phosphorus load at the Lexington
WWTP under the following five different scenarios:
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone]
47441
NCDENR
Customer Service
1 800 623-7748

Scenario 1: TP responses when existing flow rate is doubled.
Scenario 2: TP responses when existing flow rate is doubled and TP concentration is fixed to 2 mg/l.
Scenario 3: TP responses when permitted flow rate (5.5 mgd) is doubled and TP concentration is fix
to 2 mg/l.
Scenario 4: TP responses when flow rate is fixed to 9 mgd with existing TP concentration.
Scenario 5: TP responses when flow rate is fixed to 11 mgd with existing TP concentration
Table 2. Status of Total Phosphorus (TP) in the arm of High Rock Lake, Abbotts Creek. The data represents year 1999
through 2001.
Stations
Averaged TP
Concentration
(mg/L)
Averaged TP
Load (kg/day)
Averaged TP
Load (kg/year)
Averaged TP
Load
(kg/Summer)
WWTPs:
Annual Summer
High Point
1.31 1.39
17.40
6352
4144
Thomasville
3.49 3.60
36.97
13494
8479
Lexington
2.90 3.10
29.93
10923
6705
Ambient
Q5930000 (SR 1243)
0.33 0.27
Q5970000 (NC 47)
0.41 0.31
The above last two scenarios 4 and 5 are based on the speculative limits request for Lexington WWTP (HDR
Engineering, Inc of the Carolinas's memorandum dated May 16, 2002).
The sensitivity analyses result is presented in Figure 2. The result suggests that the TP load gradually increases
with increasing flow rate. However the load difference between the existing condition and scenario 2 was not
comparatively large. Similar results were also obtained when a comparison was done between the High Point
and Thomasville WWTPs (Figure 3).
The above result suggests that there is a tendency for the phosphorus load at the mouth of Abotts Creek would
increase as flows from the WWTPs increase. Therefore, considering the future expansion of the WWTPs, the
phosphorus limit should be expressed in terms of mass load. By doing so, the phosphorus level in Abbotts
Creek will be independent of flows from the WWTPs.
TP responses in ambient stations:
The attenuation rate of phosphorus discharged from these WWTPs (High Point, Thomasville, and Lexington)
on the Abotts Creek near High Rock Lake was examined by analyzing the water quality data collected at the
down stream ambient stations. The average TP concentration at station Q5930000, which is down stream of
High Point and Lexington WWTPs, was 0.33 mg/L (Table 1). The average concentration increased to
0.41mg/L further down stream at Q5970000. This increase may account for additional phosphorus discharged
from the nearby Lexington WWTP (Figure 1). Therefore, any changes in the phosphorus concentration in
2

i Lexington WWTP can have a quick impact in the phosphorus concentration in the High Rock Lake arm. A
major attention should be given in Lexington WWTP.
Figure 1. Abbotts Creek in Yadkin River Basin
High Rock Lake Arms
10
0
10
20 Miles
• Ambient Station
A WWTP
/V Yadkin R Basin
s
3

150
100
50
Figure 2. Total Phosphorus under Different
Scenarios in Lexington WWTP
C sr."- 2 /Li-
@ 2 Q�+, @Z4��t, SZ t�n� . e. 9 1,A6.t t 04i)
100
S's 80
co
60
40
20
0 ► 1
Figure 3. Sensitivity Analyses for Total
Phosphorus by Year
01999 02000 ■ 2001
High Point
i
Thomasville
Lexington
�I
�`�o' coe\ 11/ ‘P N. c., Se\ Se2. SQC5 q fie, yeti oe3
e 67> c'tr ( +�c.) CP.O. Ga • � G� G� G�
Permitted Flow
Case 1 = 2 X Existing Flow Scenarios High Point = 6.2 mgd
Case 2 = 2 X Existing Flow w/ 2mg/L Thomasville = 4.0mgd
Case 3 = 2 X Permitted Flow X2mg/L Lexington = 5.5mgd
4

THE CITY OF
NORTH
28 WEST CENTER STREET
LEXINGTON, NC 27292
LEXINGTON
CAROLINA
"SERVING THE COMMUNITY SINCE 1828"
NC DENR
DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
October 27, 2003
Re: City of Lexington
Davidson County
Permit # NC0055786
Lexington regional WWTP
Application for Permit Renewal
Dear Sirs:
TELEPHONE [phone]
OCT 2 9 2003
On behalf of the City of Lexington, NC, I am submitting the attached renewal
application for the City of Lexington's Regional WWTP.
Attached are an original of the application and 2 copies.
The following supplemental toxicity data will be forwarded as received. We learned of
the requirement for the seasonal second species toxicity testing and seasonal variation
priority pollutant analyses too late for this submission:
Second Species Toxicity analyses will be run in November, February, and April
Priority Pollutant analyses will be run in January and May
Please forward questions and comments to my attention at 336-243-2489 or at
[e-mail].
Sincerely,
Roger Spach
Water Resources Supt.
Attachments:

FACILITY NAME AND PERMIT NUMBER:
Lexington Regional WWTP, NC0055786
PERMIT ACTION REQUESTED:
renewal
RIVER BASIN:
Yadkin Pee -Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA, or other remedial wastes must
F.
complete part
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject ot, an approved pretreatment program?
X Yes ❑ No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial Users (CIUs). Provide the number of each of the following types of
industrial users that discharge to the treatment works.
a. Number of non -categorical SlUs. 1
b. Number of Gills. 2
SIGNIFICANT INDUSTRIAL USER INFORMATION:
Supply the following information for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Cardinal Container Service
Mailing Address: 138 Walser Road
Lexington. NC 27295
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Drum reconditioner and cleaner
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s):reconditioned plastic drums and intermediate bulk containers: recycled plastic, fiberglass. and steeIRCRA empty containers
Raw materal(s): above
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
35,000 gpd ( continuous or X intermittent)
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
1500 gpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X Yes 0 No
b. Categorical pretreatment standards 0 Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?

FACILITY NAME AND PERMIT NUMBER:
Lexington Regional WVVTP, NC0055786
PERMIT ACTION REQUESTED:
renewal
RIVER BASIN:
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works In the past three years?
❑ Yes X No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes X No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
0 Truck 0 Rail 0 Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
Yes (complete F.13 through F.15.) 0 No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
Continuous 0 Intermittent If intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE

F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Duracell, NAG
Mailing Address: 305 E, US Hwy 64
Lexington, NC 27292
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Battery Manufacture
F.6. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Lithium/manganese dioxide batteries; zinc air batteries
Raw material(s):
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater
discharge into the collection system in gallons per day (gpd) and whether the discharge is
continuous or intermittent.
11,695
gpd ( continuous or X intermittent)
Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater
flow discharged into the collection system in gallons per day (gpd) and whether the discharge is
continuous or intermittent.
15,305
gpd ( continuous or X intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X❑ Yes ❑ No
b. Categorical pretreatment standards X Yes ❑ No
If subject to categorical pretreatment standards, which category and subcategory?
Zinc Category; Lithium Subcategory

FACILITY NAME AND PERMIT NUMBER:
Lexington Regional WWTP, NC0055786
PERMIT ACTION REQUESTED:
renewal
RIVER BASIN:
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU
caused or contributed to any problems (e.g., upsets, interference) at the treatment works in the past
three years?
❑ Yes X No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA
hazardous
F.10. Waste
F.11. Waste
units).
EPA
Truck
Waste. Does the treatment works receive or has it in the past three years received RCRA
waste by truck, rail or dedicated pipe?
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:

F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will)
receive waste from remedial activities?
X Yes (complete F.13 through F.15.) n No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other
remedial waste originates (or is excepted to origniate in the next five years).
31 water wells
ground
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received).
Include data on volume and concentration, if known. (Attach additional sheets if necessary.)
Cr, Hg, Ag, Zn, Mn, Ni, CN
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
X Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
X Continuous 11 Intermittent If intermittent, describe discharge
schedule.

F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Marconi Communications
Mailing Address: 325 Welcome Center Blvd
Welcome, NC 27374
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Metal fabrication, powder coating, metal configuration
F.B. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Electronic Cabinets and enclosures for communications industryaluminum,
cold rolled steel, polyester powder coating; elec
Raw material(s): aluminium, cold roll steel polyester powder coating, electrical wirng componants
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater
discharge into the collection system in gallons per day (gpd) and whether the discharge is
continuous or intermittent.
4000 gpd ( continuous or X intermittent)
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater
flow discharged into the collection system in gallons per day (gpd) and whether the discharge is
continuous or intermittent.
4000 gpd ( continuous or
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits X❑ Yes ❑ No
b. Categorical pretreatment standards X❑ Yes n No
If subject to categorical pretreatment standards, which category and subcategory?
433 standards
intermittent)

F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will)
receive waste from remedial activities?
X Yes (complete F.13 through F.15.) n No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other
remedial waste originates (or is excepted to origniate in the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received).
Include data on volume and concentration, if known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
X Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
X Continuous Intermittent If intermittent, describe discharge
schedule.

Lexington Regional WWTP NC0055786
Sludge Management Plan
Sludge generated at Lexington's Regional WWTP is managed and disposed of under
conditions of permit #WQ0001318 for the Lexington Regional WWTP's Compost
Facility
All sludge produced is converted to Class A Biosolids and sold to the general public or
used at City facilities.

Print Vfew
https://cros.ncmai 1. net/mai I/MessagePrin...&srcfolder=INBOX&uid=3 918&style=default
From: Steve Mauney <[e-mail]>
To: Alex Marks <[e-mail]>
Cc: Steve Tedder <[e-mail]>
Subject: Re: RE -RATING PLANT CAPACITY
Date: Thu, 18 Mar 2004 14:37:08 -0500
µ. �.;,� c ...::.n tea,... s.a��rs•�� .sL....a-d,tw„,::,. �..;.x.;�c:�,<..,x-,..,...::a'a,�.�.
ALEX-I just had a call from Roger Spach and he said that he remembered
that they had redrafted an Environmental Assessment in April 2003, but
has no status information on the Clearinghouse review. The project # is
2E-4=0-588 Could you check on this? Thanks
Steve Mauney wrote:
> ALEX-I have been discussing the rerating of the Lexington Regional
> WWTP with Roger Spach, Lexington Public Works Director and have a
> question on the applicability of SEPA in this instance. The plant is
> currently permitted at 5.5 MGD with a 56% IWC. They have evaluated the
> treatment units and have determined that they have the capability to
> treat 6.5 MGD. As they will not be building anything else to achieve
> this additional capacity and since all treatment units were approved
> previously by DWQ, is there a need to require an EA? -Steve Mauney
Steve Mauney
NC DENR Winston-Salem Regional Office
Division of Water Quality, Water Quality Section
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone] ext 262
FAX: [phone]
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