NC0024325_Permit (Issuance)_20021211

NPDES DOCUMENT SCANNING COVER :MEET
NC0024325
North Buffalo Creek 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
Plan of Action
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 11, 2002
This dociim ent is printed on reuse paper - ignore any
content on the re' rerse side

Mr. Allan Williams
Director of Water Resources
City of Greensboro
P.O. Box 3136
Greensboro, North Carolina
Dear Mr. Williams:
Acia
NCDENR
27402-3136
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
December 11, 2002
Subject: Issuance of NPDES Permit NC0024325
North Buffalo WW FP
Guilford County
Division staff have reviewed and approved your application for an NPDES discharge permit. Accordingly, the
Division is forwarding the subject NPDES 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 items address comments and changes made pursuant to the DRAFT permit:
• Instream Study. The facility requested that Special Condition A. (3) (Instream Study) be addressed in an
administrative Memorandum of Agreement (MOA) between the City and the State of North Carolina, similar to
the administrative MOA for NPDES stream monitoring included in the Upper Cape Fear River Basin Monitoring
Coalition. The Division concurs with this request. The Instream Study special condition has been deleted from
the FINAL permit, and a MOA for the instream study is in preparation. Under the MOA, the facility will
conduct a two-year instream monitoring study at four stations to evaluate both instream dissolved oxygen and
ammonia, following the facility upgrade and removal of the upstream Cone Mills discharge in 2001.
• Mercury. A compliance schedule was requested for the proposed effluent limit for mercury, to allow time for the
facility to evaluate effluent results using clean sampling techniques, as well as investigating any potential significant
sources of mercury. The basis for the new mercury limit was the detection of mercury in 1 of 14 effluent samples
collected during 1999/2000, at a concentration of 0.67 µg/L. Additional data collected during 2001 showed one
mercury detection (0.23 µg/L) in 61 samples, which still exhibits reasonable potential to exceed water quality
standards. The 2001 influent data showed influent concentrations ranging up to 7.5 µg/L. Based on this data,
the mercury limit remains in the FINAL permit but includes a one-year compliance schedule, to provide the
facility time for clean sampling evaluations as well as source identification. In addition, please note that this
facility will be required to begin using EPA Method 1631 low-level mercury analysis beginning September 1, 2003
for all effluent mercury monitoring, due to the limited dilution at this facility. This new analytical requirement
was addressed in a letter to the permittee dated August 30, 2002. Please note that effluent limits may be deleted
in the future, if the permittee provides updated effluent data (recommended one-year period) that shows no
reasonable potential to exceed applicable water quality standards. A subsequent request that the mercury
compliance schedule be extended until September 1, 2004 (to provide additional time for the facility to implement
dean sampling techniques) cannot be granted; the Division has already notified all 155 facilities subject to the new
requirement to begin using Method 1631 by September 1, 2003. Similarly, the request that the monitoring
frequency be reduced to 2/month when using Method 1631 analysis also cannot be granted. Weekly monitoring
is consistent with all other Grade 4 facilities that have mercury limits.
• Beryllium. The Division has removed the proposed effluent limit for beryllium. The facility reported that the
beryllium data used in the reasonable potential analysis was ultimately rejected due to QA/QC problems
discovered at the contract laboratory. The reported maximum detection (0.37 µg/L) was below accepted practical
N. C. Division of Water Quality / NPDES Unit Phone: [phone]
1617 Mail Service Center, Raleigh, NC 27699-1617 fax: [phone]
Internet h2o.enr.state.nc.us DENR Customer Service Center. 1 800 623-7748

1
Issuance of NPDES Permit NC0024325
North Buffalo WWI?
Page 2
quantitation limits (2 µg/L), and run without corresponding low-level standards. The laboratory has
acknowledged the QA/QC deficiencies and has corrected the problems beginning with effluent samples collected
in April 2002. The Division concurs that the historical beryllium data set is unreliable. Therefore, the Division
has dropped the beryllium limit in the FINAL permit, and will require the facility to continue quarterly effluent
monitoring for beryllium under the pretreatment LTMP program. This data will be reviewed again for reasonable
potential analysis at the next permit renewal.
• Ammonia/Summer Season. The draft permit includes both summer and winter limits for ammonia, similar to the
previous permit. Summer limits are more stringent than winter limits. The facility requested that the month of
April be designated as a "winter month" rather than "summer month" for ammonia, based on the contention that
wastewater temperatures are still low in April. The Division cannot concur with this request at this time. The
definition of "Summer Period" is defined in state regulations [15A NCAC 2B.0404 (c)] as April 1- October 31.
Therefore, such a request would require a variance to a state rule. Requirements that must be met in order to be
eligible for a variance are located in General Statute 143-215(e), which include proving that 1) the discharge will
not endanger human health or safety; and 2) compliance with the rule from which the variance is sought cannot
be achieved by application of best available technology found to be economically reasonable, and would produce
serious hardship without equal or greater benefits to the public.
■ Ammonia/Weekly Limit. The DRAFT permit included ammonia limits based on monthly average limits only.
Subsequent to the DRAFT permit, a DWQ Ammonia Permitting Policy (dated October 15, 2002, and available
on the NPDES website) was approved by EPA Region 4, and is now being implemented in NPDES permits.
The ammonia policy addresses EPA concerns about the need for both monthly average as well as weekly average
permit limits for ammonia (NH3 as N). For municipal facilities with monthly average ammonia limits, a multiplier
of 3 will be used to establish weekly average limits. The multiplier was derived from performance data for eight
municipal facilities. This FINAL permit implements the ammonia policy with the addition of weekly average
ammonia limits of 12.0 mg/L (summer) and 24.0 mg/L (winter).
■ Cyanide PQL. The facility requested that the NPDES permit quantitation level for cyanide be designated as 20
µg/L, based on the cyanide PQL study conducted by the City of Winston-Salem. The Division cannot concur
with this request. The Winston-Salem study was a site -specific determination, and results may not be applicable
to wastewater from the Greensboro facility. However, the Division will consider results of any site -specific PQL
study that the facility may perform in the future. Based on recent discussions with US EPA, a practical
quantitation level (PQL) of 10 µg/L was agreed upon for NC NPDES permitting, and is considered achievable by
many contract laboratories. For compliance purposes, all values below 10 µg/L (both detects and non -detects)
will be considered "zero."
• Selenium. EPA commented on the DRAFT permit that the reasonable potential analysis indicated the potential
for selenium to exceed its allowable effluent concentration of 5.1 µg/L. The data set (n= 14) used for this
evaluation was collected over the period 8/99-12/00, and included a single detection at the PQL of 2 µg/L, with
all other values reported as <2 µg/L or <5 µg/L. It does not appear that any additional effluent selenium data
has been collected since that time. A re-evaluation of the data shows no reasonable potential if the data set
excludes non -detects reported as <5 µg/L (n= 4), since this data adds variability to the statistical evaluation.
Based on this re-evaluation, no limit is proposed for selenium. However, quarterly selenium monitoring has been
added to the FINAL permit, and data will be re-evaluated for reasonable potential analysis at the next permit
renewal. In order to reduce unnecessary variability, it is recommended that the facility request the lab to analyze
these samples at the same PQL.
• Total Metals. EPA commented on the DRAFT permit that metals should be specified as "Total" in the effluent
sheet. This change has been incorporated into this FINAL permit.
• Total Residual Chlorine. Please note that the Division is currently in the process of implementing a water quality
standard for Total Residual Chlorine (TRC) based on the recent Triennial Review. The standard has been
approved by the EMC, and NPDES expects to introduce permit limits statewide in April 2003. Although TRC is
not currently limited in this permit, the Division recommends that you prepare a budget and schedule
construction of facility upgrades to restrict the discharge of TRC, or explore alternative methods of disinfection.
A review of recent effluent DMR data indicates this facility's effluent TRC concentrations generally range from
100-400 µg/L. Future renewals of this permit will include a TRC limit of between 17 µg/L and 28 µg/L,
assuming the TRC water quality standard receives final approval.

Issuance of NPDES Permit NC0024325
North Buffalo WWTP
Page 3
• Extreme Weather. The facility requested that the adverse weather/dangerous stream sampling provisions
provided in state regulations [15A NCAC 2B.0505 (c)(4)] be included in the FINAL permit. In response, this
language has been added to the bottom of the effluent sheet.
• Daily Definition. The facility requested that the definition for "Daily" sampling be included in the FINAL
permit. The state definition provided in 15A NCAC 2B.0503 (5) states that "Daily" means every day on which a
wastewater discharge occurs except Saturdays, Sundays, and legal holidays unless otherwise specified by the
Director. This definition has been added to the bottom of the effluent sheet.
• Treatment Components. The facility provided updated information on the wastewater treatment upgrades, which
has been incorporated in the Supplement to Permit Cover Sheet.
• Renewal Requirements. Please note that the U.S. EPA changed the NPDES permit application requirements (per
40 CFR 122) for municipal facilities, effective August 1, 2001. EPA Forms 1 and 2A must be used for your next
permit renewal application, and additional analyses will be required. Any data submitted cannot be over 4'/2 years
old. The new application requirements include:
> Conduct three Priority Pollutant Analyses (PPAs) and submit results with your renewal application.
Samples must be representative of the seasonal variation in the discharge. The new PPA requirements
are included in Part D of EPA Form 2A.
➢ Conduct four chronic toxicity tests for an organism other than Ceriodaphnia and submit results with your
renewal application. The tests should be conducted quarterly, with samples collected on the same day as
your current toxicity test. Contact the Aquatic Toxicology Unit at [phone] for guidance on
conducting the additional tests.
• Pretreatment Data. Please include all future Pretreatment LTMP effluent data in the applicable monthly
Discharge Monitoring Reports.
The following items that appeared in the DRAFT permit remain in this FINAL permit:
• Nutrient Limits. This facility discharges to nutrient sensitive water (NSW) and already has total phosphorus limits
of 2 mg/L as a result of the NSW strategy. In 1997 the Clean Water Responsibility Act (House Bill 515) was
enacted, with the intent to strengthen the control of nutrients from all discharges to NSW waters. Facilities
permitted to discharge > 500,000 gallons per day, and any new or expanding facilities, are subject to nutrient
limitations for total nitrogen and total phosphorus according to House Bill 515 requirements. The House Bill 515
nutrient limitations are effective January 1, 2003, unless a compliance extension was received and approved by the
Division. Since an extension was approved, the total nitrogen limit will be deferred until results of a nutrient
response modeling effort are completed. Please note that modeling results may result in limits lower than those
mandated by House Bill 515.
• Nutrient Monitoring. An increase in effluent nutrient monitoring frequency from monthly to weekly for total
nitrogen and total phosphorus.
• Chronic Toxicity. An update to the chronic toxicity test language, which was revised in 1999 to include different
follow-up procedures upon a test failure.
• Nutrient Reopener. Deletion of Special Condition H, Nutrient Reopener, since permit reopener language is
already present in the boilerplate (Part II, Section B. 13).
• Ammonia. There are no changes in the ammonia monthly average effluent limit at this time. However, please be
aware that an ammonia TMDL is currently in development, which may require more stringent permit limits in the
future.
• Instream Monitoring. Instream monitoring requirements in Part A. (1) have been waived as long as the permittee
maintains membership in the Upper Cape Fear River Basin Association (UCFRBA). The UCFRBA conducts
instream monitoring at one upstream station and one downstream station associated with this discharge.
• Metals Limits. Effluent limits and weekly monitoring have been added for cyanide, chromium, nickel, and
mercury, which showed reasonable potential to exceed applicable water quality standards/criteria. However,
maintain same monitoring as last permit for copper, zinc, and iron; these compounds showed reasonable potential
to exceed state action levels, but per the Division Action Level Policy no limits are necessary since the facility has
been compliant with its chronic toxicity test limit.

Issuance of NPDES Permit NC0024325
North Buffalo W\VTP
Page 4
• Monitoring. A decrease in monitoring frequency from monthly to quarterly for fluoride and chloride, since
neither compound showed reasonable potential to exceed applicable water quality standards/criteria.
• Permit Expiration. Extend the permit expiration date to June 30, 2006.
Please note that the receiving stream (North Buffalo Creek) is listed as an impaired water in North Carolina's Draft
2000 303(d) list. The entire stream is listed as biologically impaired due to unknown causes, with a Not Supporting
(NS) use rating. Currently TMDLs are in preparation for ammonia and fecal coliform bacteria. If there is
noncompliance with permitted effluent limits and degradation of North Buffalo Creek can be attributed to the facility,
then additional mitigative measures may be necessary.
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 a demand is made, this permit shall be final and binding.
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, the Division of Land Resources, the Coastal Area
Management Act, or any other federal or local governmental permit.
If you have any questions concerning this permit, please contact Tom Belnick at telephone number [phone],
extension 543.
Sincerely,
:ORIGINAL SIGNED I
SUSAN A. 'WILSON
Alan W. Klimek, P.E.
cc: Central Files
Madolyn Dominy, EPA
Winston-Salem Regional Office, Water Quality
Technical Assistance & Certification Unit
Aquatic Toxicology Unit
NPDES File

Permit NC0024325
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 Greensboro
is hereby authorized to discharge wastewater from a facility located at the
North Buffalo WWTP
2199 White Street, Greensboro
Guilford County
to receiving waters designated as North Buffalo Creek in the Cape Fear River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II and III hereof.
The permit shall become effective January 1, 2003.
This permit and the authorization to discharge shall expire at midnight on June 30, 2006
Signed this day December 11, 2002
)RIGINAL SIGNED In'
SUSAN A. WILSON
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0024325
SUPPLEMENT TO PERMIT COVER SHEET
The City of Greensboro is hereby authorized to:
1. Continue to operate an existing 16.0 MGD activated sludge wastewater treatment
facility located at the North Buffalo Creek WWTP (2199 White Street, Greensboro,
Guilford County). This facility includes the following treatment components:
• Mechanical bar screens
• Influent parshall flume
• Aerated grit removal
• Four primary clarifiers
• Flow equalization system
• 6 MGD flow transfer pump station to TZ Osborne
• Two high rate trickling filters
• Four activated sludge tanks with fine bubble diffusers
• Chemical addition for phosphorus removal
• Five secondary clarifiers
• Four tertiary sand filters
• Effluent parshall flume
• Chlorination
• Step reaeration
2. Discharge from said treatment works (via Outfall 001) into North Buffalo Creek, a
Class C-NSW stream in the Cape Fear River Basin, at the location specified on the
attached map.

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Latitude: 36° 06' 34"
Longitude: 79° 44' 53"
USGS Quad #: C20SW
River Basin #: 03-06-02
Receiving Stream: North Buffalo Creek
Stream Class: C NSW
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City of Greensboro
North Buffalo WWTP
Guilford County
NC0024325

Permit NC0024325
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater
from Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow
16.0 MGD
Continuous
Recording
Influent or Effluent
CBOD, 5-day, 20°C (Summer)2
8.0 mg/L
12.0 mg/L
Daily
Composite
Influent & Effluent
CBOD, 5-day, 20°C (Winter)2
16.0 mg/L
24.0 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent & Effluent
NH3 as N (Summer)
4.0 mg/L
12.0 mg/L
Daily
Composite
Effluent
NH3 as N (Winter)
8.0 mg/L
24.0 mg/L
Daily
Composite
Effluent
Fecal Coliform (geometric mean)
200/100 ml
400/100mI
Daily
Grab
Effluent
Total Residual Chlorine
Daily
Grab
Effluent
Dissolved Oxygen3
Daily
Grab
Effluent
Temperature°C
Daily
Grab
Effluent
pH4
Daily
Grab
Effluent
Total Nitrogen (NO2+NO3+TKN)5
Weekly
Composite
Effluent
Total Phosphorus6
2.0 mg/L quarterly averages
Weekly
Composite
Effluent
Chronic Toxicity?
_
Quarterly
Composite
Effluent
Total Cyanide8
5.2 pg/L
22.0 pg/L
Weekly
Grab
Effluent
Total Chromium
51 pg/L
1022 pg/L
Weekly
Composite
Effluent
Total Nickel
91 Ng/L
261 yg/L
Weekly
Composite
Effluent
Total Mercury9
0.012 pglL
Weekly
Composite9
Effluent
Total Copper
2/Month
Composite
Effluent
Total Zinc
2/Month
' Composite
Effluent
Total Iron
Monthly
Composite
Effluent
Total Selenium
Quarterly
Composite
Effluent
Fluoride
Quarterly
Composite
Effluent
.Chloride
Quarterly
Composite
Effluent
Dissolved Oxygen'°
10
Grab
U, D1, D2, D3
Fecal Coliform'°
io
Grab
U, D1, D2, D3
Temperature°Cf°
10
Grab
U, D1, D2, D3
Conductivity'°
1u
Grab
U, D1, D2, D3
otes:
1. U: Upstream at the influent conduit. Dl: Downstream at the unimproved road 0.8 miles east of White/Nealtown Road intersection.
D2: Downstream at Rankin Mill Road. D3: Downstream in Buffalo Creek at McCleansville Road.
2. The monthly average effluent CBODS and TSS concentrations shall not exceed 15% of the respective influent value (85% removal).
3. The daily effluent dissolved oxygen concentration shall not be less than 6.0 mg/L.
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5. TN nutrient limit required by HB 515 is deferred until results of nutrient response modeling effort are completed.
6. Compliance shall be based on a quarterly average of weekly samples, with quarterly periods defined as January -March, April June, July -September, and
October -December.
7. Chronic Toxicity (Ceriodapbnia) at 90% with testing in January, April, July and October (see Special Condition A. (2)).
8. The quantitation limit for cyanide shall be 10 pg/L; levels reported below 10 pg/L shall be considered zero for compliance purposes.
9. The mercury limit will become effective 1 / 1 /04, which is one year after the permit effective date. Effluent samples must be analyzed by an EPA -
approved low level mercury analysis method beginning 9/ 1 /03. Grab samples will be allowed in conjunction with low-level mercury analysis.
10. Instream monitoring requirements are waived as long as facility retains membership in the UCFRBA. If membership is cancelled, facility will monitor
3/Week (June -September) and 1/Week (October -May). Stream sampling may be discontinued at such times as flow conditions in the receiving
waters or extreme weather conditions will result in a substantial risk of injury or death to persons collecting samples. Upon such discontinuance,
stream sampling shall be resumed at the first opportunity after the risk period has ceased.
(Summer): April 1- October 31 (Winter): November 1 - March 31
(Daily): every day on which a wastewater discharge occurs except Saturdays, Sundays, and legal holidays unless otherwise specified by the
Director
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0024325
4
A. (2) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90%.
. The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia 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 January, April, July, and October.
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 II 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: Environmental Sciences Branch
North Carolina Division of Water Quality
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.

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E/A- a a oil
o���A�s
UNITED STATES ENVIRONMENTAL PROTECTION• AGENCY
a��Y� REGION4
v ATLANTAFEDERAL CENTER
moo= 61 FORSYTH STREET
14t pRcii — ATLANTA, GEORGIA 30303-8960
DEC 0 3 2002
DEC 1 c"
Mr. Tom Belnick
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: Proposed Final NPDES Permits
North Buffalo WWTP - NPDES No. NC0024325
T.Z. Osborne WWTP - NPDES No. NC0047384
Dear Mr. Belnick:
In accordance with the EPA/NCDENR MOA, we have completed review of the proposed
final draft permits referenced above and have no comments. We request that we be afforded an
additional review opportunity only if significant changes are made to the permit(s) prior to
issuance, or if significant comments regarding the proposed final permit(s) are received.
Otherwise, please send us one copy of each final permit when issued.
If you have any questions, please call me at [phone].
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)

Re: thbuehts om NC0047384 (TZ Osborne) and NC0024325 (North Buffalo)
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Subject: Re: thoughts on NC0047384 (TZ Osborne) and NC0024325 (North Buffalo)
Date: Tue, 03 Dec 2002 16:06:14 -0500
From: [e-mail]
To: Tom Belnick <[e-mail]>
thanks for the quick turnaround. Your responses have addressed all of
my concerns. I'll send a no comment letter, which will go out of here
tomorrow.
1 of 1
I2/3/02 4:25 PM

thoughts on NC0047384 (TZ Osborne) and NC0024325 (North Buffalo)
Subject: thoughts on NC0047384 (TZ Osborne) and NC0024325 (North Buffalo)
Date: Tue, 03 Dec 2002 15:43:07 -0500
From: Tom Belnick <[e-mail]>
To: Marshall Hyatt <[e-mail]>
CC: Tom Belnick <[e-mail]>
Marshall wrote: hope these are useful - let me know your response so we
can send a no comment letter.
- NC0047384: (T.Z.Osborne/South Buffalo)
EPA Comment:- on pg. 2 of your cover letter, Renewal Requirements,
bullet 2, line 1,- would you add "chronic" after "four", to ensure that
acute tests
aren't conducted? (same comment applies to NC0024325)
NC Response: Will do.
EPA Comment:- re the 303(d) language on pg. 3 of your cover letter, I'm
a little confused. The creek is listed for ammonia, but the facility is
expanding to 40 MGD and the ammonia limits are the same as at 30 MGD.
How does going to 40 MGD from 30 MGD at the same ammonia limits clear up
the existing impairment, as indicated in Part 4 of NC's 303(d) list?
Seems to me the limits would need to be more stringent, since ammonia
toxicity is a conc-based effect.
NC Response: In the 1995 permit issuance, the facility had phased
limits of 20/30/40 MGD, with NH3-N limits of 3.0/6.0 mg/1
(summer/winter) at 20 MGD, and 2.0/4.0 mg/1 (summer/winter) for the
phased 30/40 MGD upgrades. The facility was re -rated to 24 MGD on
5/5/2000, with NH3-N limits of 2.5/5.0 mg/1 (summer/winter). The 2000
303(d) list stated that the NH3-N limits would be revised lower at the
next upgrade (to 30 MGD). The facility completed this upgrade on
6/1/2001, at which time the more stringent 2.0/4.0 mg/1 (summer/winter)
limits kicked in. These limits were considered BAT for large
municipals. The ammonia limits are the same for both the 30/40 MGD
flows, since the change in the dilution factor for this
effluent -dominated stream is minimal (1.05 versus 1.03). As indicated,
we will continue to evaluate instream ammonia data to evaluate whether
additional measures are needed.
EPA Comment:- why are the TRC limits 18 ug/1, instead of 17 ug/1?
NC Response: The TRC limit is a chronic WQ-based limit using s7Q10
dilution, which amounts to the minimal dilution factor (1.05 and 1.03)
times the chronic action level of 17 ug/1, which rounds up to 18 ug/1
for both flows. If no limit was warranted, we would place the acute
criteria of 28 ug/1 as the limit.
NC0024325: (North Buffalo)
EPA Comment: - on pg.3 of your cover letter, Renewal Requirements,
bullet 2, line 1- would you add "chronic" after "four", to ensure that
acute tests
aren't conducted?
NC Response: Will do.
EPA Comment:- on the permit limg, "PH" should be "pH".
NC Response: Will do.
EPA Comment:- shouldn't the cyanide daily max mit be 22 ug/l, not 23
ug/1?
NC Response: Good catch. Will d
Hi Marshall- these permits have been backlogged for awhile and we would
1 of 2 12/3/02 3:54 PM

NC Division of Water Quality
November 21, 2002
MEMORANDUM
To: Marshall Hyatt, EPA Region 4
Through: NA
From: Tom Belnick, NC DENR/DWQ/NPDES Unit
Subject: Greensboro NPDES Permits; Draft Final
NC0024325- North Buffalo WWTP
NC0047384- T.Z. Osborne WWTP
Hi Marshall- I'm sending you the revised NPDES permits (without maps) for the subject facilities, since
you reviewed the drafts. The Fact Sheet Addendums detail the changes made since the draft permits
were noticed. These permits were on a back -burner as we resolved several issues (ammonia, mercury),
and the permittee was also investigating problems with their commercial lab which affected limits
development. I'm also including two rounds of comments received from the permittee, which were the
only comments received aside from EPA. Let me know if you: have. any comments/questions on the_
proposed changes. Thanks.

NCDENR / DWQ
FACT SHEET- ADDENDUM
NPDES PERMIT RENEWAL
City of Greensboro/North Buffalo WWTP
NPDES No. NC0024325
Facility Information
(1.) Facility Name:
North Buffalo WWTP
(2.) Permitted Flow,MGD:
16.0 MGD
(6.) County:
Guilford
(3.) Facility Class:
4
(7.) Regional Office:
Winston Salem
(4.) Facility Status:
Existing
(8.) USGS Topo Quad:
C20SW
(McLeansville)
(5.) Permit Status:
Renewal
Stream Characteristics
(1.) Receiving Stream:
North Buffalo Creek
(2.) Subbasin Number:
030602
(8.) Drainage Area (mi2):
22.00
(3.) River Basin:
Cape Fear
(9.) Summer 7Q 10 (cfs)
0.9
(4.) Stream Class:
C NSW
(10.) Winter 7Q10 (cfs):
2.6
(5.) 303(d) Listed:
YES
(11.) 30Q2 (cfs):
3.2
(6.) 305(b) Status:
(12.) Average Flow (cfs):
25.00
(7.) Use Support:
Not Supporting
(13.) IWC (%):
96
Additional Conditions Incorporated into FINAL Permit Renewal
Proposed Conditions
Parameters Affected
Basis for Condition(s)
Delete Special Condition from
permit.
Special Condition A(3)
Instream Study
This requirement will be handled
under an administrative
Memorandum of Agreement
(MOA), similar to Monitoring
Coalition MOAs.
Addition of 1 year compliance
schedule.
Effluent- Mercury
Compliance Schedule
Per facility request, a compliance
schedule has been added to
provide time for facility to
evaluate clean sampling
methods as well as source
identification.
Delete permit limit and weekly
monitoring
Effluent- Beryllium
Facility's beryllium data was
later rejected due to contract lab
QA/QC issues, and the facility
was compensated by the lab.
Issues included lack of
standards below the reported
detections. Effluent monitoring
will continue under the
Pretreatment program, and data
will be re-evaluated at the next
permit renewal.

. NPDES PERMIT FACT SHEET- ADDENDUM
• - Page 2
City of Greensboro- North Buffalo
NPDES No. NC0024325
Addition of adverse
weather/stream sampling
provisions to effluent sheet.
Adverse weather/stream
sampling provisions
Per 15A NCAC 2B.0505(c)(4).
Addition of Daily Sampling
definition to effluent sheet
•
Daily Sampling
Per 15A NCAC 2B.0503(5).
Addition of Weekly Average limits
for NH3-N of 12 mg/1 (summer)
and 24 mg/1 (winter).
Effluent- Ammonia
Per Implementation Policy for
permits with existing Monthly
Average NH3-N limits, dated
10/15/02. A multiplier of 3 was
used to develop weekly average
NH3-N limits.
Addition of quarterly monitoring.
Effluent- Selenium
Based on the Draft permit, EPA
commented that the RPA showed
reasonable potential but no limit
was applied. The data set
collected during 1999-2000
included one detection (2 ug/1)
with the remaining 13 samples
reported as non -detects (<2 ug/1
or <5 ug/1). No additional data
has been collected since. The
allowable effluent concentration
was calculated as 5.18 ug/1. Re-
evaluation of the data showed
reasonable potential was
exhibited due to variability of the
non -detect values, rather than
the lone detection (e.g., there is
no reasonable potential exhibited
when the same PQL (<2 ug/1) is
used. Since the reasonable
potential result was driven by
non -detect values, it is proposed
to require quarterly effluent
monitoring and rerun the RPA at
the next permit renewal. It is
suggested that the facility report
at one PQL value to minimize
unnecessary variability.
Report as 'Total" metals in
effluent sheet.
Effluent- Metals
Per EPA request.
No change at this time.
Effluent- TRC
Cover letter notes that TRC limit
will be added at next permit
renewal, provided the EMC-
approved TRC water quality
standard for freshwaters receives
final approvals.
Update the facility treatment
description.
Supplement to Effluent Sheet
Based on facility information.
Page 2
Version: June 16, 2003

. NPDES PERMIT FACT SHEET- ADDENDUM
Page 3
Conditions Incorporated into DRAFT Permit Renewal
City of Greensboro- North Buffalo
NPDES No. NC0024325
Proposed Conditions
Parameters Affected
Basis for Condition(s)
No changes at this time.
Nutrient Limits- TN, TP
Facility is subject to HB515
nutrient requirements. The
existing TP concentration
limit of 2 mg/1 is as stringent
as HB515 at current
permitted flow, and will
remain in effect. A TN load
limit based on HB515 is
deferred until completion of a
nutrient response model,
which is due in April 2002.
Increase effluent monitoring
frequency from monthly to
weekly.
Nutrients- TN, TP
Consistent with monitoring
frequency for Class 4 facilities
with nutrient limits.
Update chronic toxicity test
language.
Toxicity Test
Toxicity test language was
updated in 1999, with new
followup procedures after a
failure.
Delete Special Condition H
Nutrient Reopener Special
Condition
Not necessary. The
boilerplate already includes
generic reopener language,
and nutrients are being
controlled under HB515.
No changes at this time.
Ammonia Limit/TMDL
Ammonia effluent limits may
need to be modified in the
future pending results of the
NH3 TMDL. Additional
instream monitoring will be
required to assess current
instream conditions; refer to
Special Condition A(3).
Continue to waive instream
monitoring requirements in
Effluent Sheet A(1).
Instream monitoring
Since 4/2000, instream
monitoring has been waived
as long as permittee retains
membership in UCFRBA.
Coalition monthly monitoring
of two instream stations
(upstream, downstream) is
conducted by UCFRBA.
Maintain limit with weekly
sampling.
Effluent- cyanide
Cyanide detected in 20 of 71
samples, and RPA showed
reasonable potential to
exceed the WQS. Max
reported eff. conc.= 24 ug/1
versus an allowable
concentration of 5.1 mg/1.
Page 3
Version: June 16, 2003

NPDES PERMIT FACT SHEET- ADDENDUM
Page 4
City of Greensboro- North Buffalo
NPDES No. NC0024325
Add limit and weekly
monitoring.
Effluent- Chromium
Chromium showed
reasonable potential to
exceed the applicable WQS.
Chromium was detected in 6
of 53 samples; max reported
eff. conc = 37 ug/1; max
predicted eff. conc.= 8 lug/1;
and allowable eff. conc. = 51
ug/1.
Add limit and weekly
monitoring.
Effluent- Nickel
Nickel showed reasonable
potential to exceed the
applicable WQS. Nickel was
detected in 49 of 52 samples;
max reported eff. conc. = 112
ug/1 versus an allowable eff.
conc. of 91 ug/1.
Add limit and weekly
monitoring.
Effluent- Mercury
Mercury showed reasonable
potential to exceed the
applicable WQS. Mercury was
detected in 1 of 14 samples;
max. reported eff. conc. =
0.67 ug/1 versus an allowable
eff. conc. of 0.012 ug/1.
Add limit and weekly
monitoring.
Effluent- Beryllium
Beryllium showed reasonable
potential to exceed the
applicable WQS. Beryllium
was detected in 4 of 14
samples; max reported eff.
conc. = 0.37 ug/1 versus an
allowable eff. conc. of 0.23
ug/1. The beryllium WQS is
based on carcinogenic human
health risk from fish
ingestion over a lifetime,
using average annual flow for
dilution; hence, the limit is
applied as a monthly average
value.
Reduce monitoring frequency
from monthly to quarterly.
Effluent- fluoride, chloride
Neither compound showed
reasonable potential to
exceed WQS/Action Levels.
Maintain same monitoring as
last permit.
Effluent- copper, zinc, iron
All metals showed reasonable
potential to exceed state
action levels. Per Action
Level Policy, maintain
monitoring -only since facility
has been compliant with its
chronic toxicity limit.
Page 4
Version: June 16, 2003

NPDES PERMIT FACT SHEET- ADDENDUM
Page 5
City of Greensboro- North Buffalo
NPDES No. NC0024325
Add special condition
Special Condition A(3)-
Instream data for 1999
requiring permittee to
Instream Monitoring Study
indicated several DO values
conduct a two-year, weekly
<5 mg/1 at the upstream
instream monitoring study for
station, and a larger DO sag
NH3, DO, temperature and
at the downstream D2
pH at stations U, D 1, D2, D3.
station. In addition, instream
data showed violations of the
ammonia criteria, particularly
during winter. Beginning
7/ 1 /01, instream data will
reflect stream conditions
following the PO' W upgrade
as well as the removal of the
upstream Cone Mills
discharge. The instream
study data will be used to
reassess instream conditions
for ammonia and DO.
PROJECT NOTES
Summary
• This is a permit renewal for a major PO1W with a 16 MGD activated sludge facility. For
calendar year 2000, the facility averaged 76% of its permitted flow. This facility has
recently upgraded its treatment capability to improve effluent quality, by converting three
existing flow equalization tanks to an additional treatment train (aeration tank and two
final clarifiers). This upgrade became operational in March 2001. The facility operates a
full pretreatment program, and industrial wastewater represents 7% of permitted flow.
There are currently nine SIUs, including metal finishing, job shop electroplating, and
inorganic/organic chemicals manufacturing. Sludge is pumped to the Greensboro Osborne
WWTP for dewatering and incineration. In addition, flow equalization pumps send peak
wastewater flows to the Greensboro Osborne WWTP, which is permitted to 40 MGD. There
are no current plans to expand the North Buffalo Creek facility beyond the current 16 MGD
capacity. Finally, the city is slip -lining old sewer lines to minimize the impacts of
infiltration and inflow.
• The facility discharges to North Buffalo Creek, which then discharges to Buffalo
Creek>Reedy Fork>Haw River>Jordan Lake. The entire North Buffalo Creek is listed as
biologically impaired in the 2000 Draft 303(d) List, with a Not Supporting (NS) use rating.
Currently TMDLs are in preparation for ammonia and fecal conform bacteria. The receiving
stream is also classified as Nutrient Sensitive Water (NSW), and direct dischargers are
subject to nutrient limitations imposed by House Bill 515. The 2000 Basin Plan reports
that a Poor rating for water quality, based on both fish and benthos data, was found below
the WWTP. Further downstream on Reedy Fork, there is a slight improvement to a Fair
benthos rating.
• North Buffalo Creek receives large amounts of urban runoff from the City of Greensboro, as
well as point source additions from Greensboro North Buffalo WWTP and, until recently,
from Cone Mills. North Buffalo Creek is a small stream and effluent dominated, with the
permitted discharge from Greensboro North Buffalo representing 97% of the instream
s7Q10 flow. A major industrial discharger (Cone Mills) located a few miles upstream of the
POTW consistently violated toxicity limits, but its wastewater will be pumped to the
Greensboro Osborne WWTP, which discharges to South Buffalo Creek, by July 1, 2001.
The City of Greensboro has developed a stormwater program that will start to address
problems associated with nonpoint sources.
Permit Limits Development
• Application. The permit renewal application was received on 7/31/2000, approximately 11
months prior to the permit expiration date of 6/30/01.
Page 5
Version: June 16, 2003

NPDES PERMIT FACT SHEET- ADDENDUM City of Greensboro- North Buffalo
Page 6 NPDES No. NC0024325
• Permit Modifications. The permit was modified in April 1998 to allow a total cyanide
quantitation limit of 10 ug/1.
• Coalition Monitoring. Facility became a member of the Upper Cape Fear River Basin
Association (UCFRBA) in 2000. Instream monitoring requirements in Effluent Sheet A(1)
have been waived since 4/6/00 as long as facility maintains membership in the UCFRBA.
The UCFRBA collects one upstream sample and one downstream sample (at Huffine Mill
Rd) in association with this discharger. Instream monitoring requirements per Effluent
Sheet A(1) will continue to be waived, with the exception of the Instream Study requirement
per Special Condition A(3).
• Nutrients. The NSW Strategy has already mandated effluent TP limits of 2 mg/1. In 1997,
HB 515 set additional requirements on NSW waters, specifically TN load limits based on 5.5
mg/1, with an implementation date of 1 / 1 /03. The City of Greensboro -North Buffalo was
one of nine facilities to request and receive a compliance extension provided by Senate Bill
1366, under the condition that a calibrated nutrient response model be prepared for the
Jordan Lake watershed. Nutrient limits will ultimately be based on the model results,
which are due in April 2002.
• Metals. Based on results of the reasonable potential analysis (RPA), limits have been added
for cyanide, chromium, nickel, mercury, and beryllium. The RPA for cyanide, chromium,
and nickel was based on data reported for the calendar year 2000, while the RPA for
mercury and beryllium was based on data reported in 1999/2000.
• Ammonia TMDL. A TMDL is currently being developed for NH3 for North Buffalo Creek.
The NPDES permit may need to be modified in the future based on TMDL requirements.
This draft permit requires the facility to conduct an instream weekly monitoring study per
Special Condition A(3), to reassess instream ammonia conditions following the facility
upgrade (completed 3/01) as well as the Cone Mills outfall relocation (completed 5/01).
• Instream Dissolved Oxygen. Instream data for summer 1999 inicated low DO values (< 5
mg/1 WQS) on several occasions in July and August at the Upstream station, none at the
first downstream station (D1), but then several low DO values (< 5 mg/1) at the second
downstream station (D2). The DO sag at D2 was more severe than at the upstream station,
indicating the influence of the Greensboro -North Buffalo discharge. Instream DO data will
need to be re-evaluated at these historical downstream stations to determine whether
conditions have improved since the facility upgrade and removal of the Cone Mills
discharge. Similar to ammonia, this permit requires the permittee to conduct a weekly
instream monitoring study per Special Condition A(3) to determine current instream
conditions for DO. If instream DO trends do not show an improvement, then additional
measures may be necessary to maintain the instream WQS for DO.
• Water Quality Limited Parameters: CBOD, NH3. TP, DO, cyanide, chromium, nickel,
mercury, beryllium.
DMR Data.
• Effluent Chemistry Data. With the exception of some cyanide limits violations, the facility
was compliant with its permit limits for calendar year 2000. Average monthly values
ranged from 10-14 MGD (flow); 1-4.8 mg/1 (CBOD); 0.3-5.8 mg/1 (NH3); 3-10 mg/1 (TSS); 1-
46 org/100m1 (fecals); 8-15 mg/1 (TN); and 0.9-2.5 mg/1 (TP). The max TRC concentrations
generally ranged from 400-1000 ug/1.
• Effluent Toxicity Data. The facility has generally been compliant with its chronic toxicity
test limit, passing 17 of 20 tests between 1997-2001. There have been no failures since
February 1998.
• Instream Data. Evaluation of 1999 summer instream data shows low DOs (< 5 mg/1 WQS)
at the upstream station as well as the second downstrean station (D2). With the removal of
Cone Mills by July 1, 2001, as well as the additional treatment train which became
operational in March 2001, the subsequent summer instream data will need to be evaluated
to determine if additional measures are necessary to protect instream DO and ammonia.
• Compliance Data. Between 1 / 1 /95-10/31 /00, the facility was assessed two penalties for
limits violations (CBOD, Fecal) in 1999, totaling $4,346. There were three additional
penalty assessments totaling $1,876 for cyanide limits violations in 2000, based on several
violations of the weekly average CN limits. There are currently no active SOCs.
Page 6
Version: June 16, 2003

. NPDES PERMIT FACT SHEET- ADDENDUM City of Greensboro- North Buffalo
Page 7 NPDES No. NC0024325
WLA Data.
• The last WLA was prepared in 1995.
Winston Salem Region Data.
• The WSRO conducted a Compliance Evaluation Inspection on 10/25/00. The plant was
well maintained and all components were operating satisfactorily.
Page 7
Version: June 16, 2003

. NPDES PERMIT FACT SHEET- ADDENDUM City of Greensboro- North Buffalo
NPDES No. NC0024325
Page 8
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice:
Permit Scheduled to Issue:
State Contact
08/15/01
10/01/01
If you have any questions on any of the above information or on the attached
permit, please contact Tom Belnick at [phone], extension 543.
Copies of the following are attached to provide further information on the permit
development:
• Reasonable Potential Analysis (majors only)
• Draft Permit
NPDES Recommendation by:
Sidnatiirp
Regional Office Comments
natP
Regional Recommendation
by:
Reviewed and accepted by:
Signature
Date
Signature
Date
Regional Supervisor:
NPDES Unit Supervisor:
Signature
Date
Page 8
Version: June 16, 2003

K
©Tits
NCDENR
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
DRAFT (Month XX, )c)
Allan Williams, Director of Water Resources
City of Greensboro
P.O. Box 3136
Greensboro, North Carolina 27402-3136
Subject: NPDES Permit Issuance
Permit No. NC0024325
North Buffalo WWTP
Guilford County
Dear Mr. Williams:
Division staff have reviewed and approved your application for an NPDES discharge permit. Accordingly,
the Division is forwarding the subject NPDES 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 items address comments and changes made pursuant to the DRAFT permit:
■ Instream Study. The facility requested that Special Condition A (3)- Instream Study- be addressed in
an administrative Memorandum of Agreement (MOA) between the City and the State of North
Carolina, similar to the administrative MOA for NPDES stream monitoring included in the Upper
Cape Fear River Basin Monitoring Coalition. The Division concurs with this request. The Instream
Study special condition has been deleted from the FINAL permit, and a MOA for the instream study is
in preparation. Under the MOA, the facility will conduct a two-year instream monitoring study at
four stations to evaluate both instream dissolved oxygen and ammonia, following the facility upgrade
and removal of the upstream Cone Mills discharge in 2001.
■ Mercury. The facility requested a compliance schedule for the proposed effluent limit for mercury. to
allow time for the facility to evaluate effluent results using clean sampling techniques, as well as
investigating any potential significant sources of mercury. The basis for the new mercury limit was
the detection of mercury in 1 of 14 effluent samples collected during 1999/2000, at a concentration
of 0.67 ug/1. Additional data collected during 2001 shows one mercury detection (0.23 ug/1) in 61
samples, which still exhibits reasonable potential to exceed water quality standards. The 2001
influent data shows influent concentrations ranging up to 7.5 ug/1. Based on this data, the Division
will retain the mercury limit in the FINAL permit but include a one-year compliance schedule, to
provide the facility time for clean sampling evaluations as well as source identification. In addition,
please note that this facility will be required to begin using EPA Method 1631 low-level mercury
analysis beginning 9/ 1 /2003 for all effluent mercury monitoring, due to the limited dilution at this
facility. This new analytical requirement was addressed in a letter to the permittee dated 8/30/02.
Please note that effluent limits may be deleted in the future upon written notification of the Division,
if the permittee provides updated effluent data (recommended one-year period) that shows no
reasonable potential to exceed applicable water quality standards. The facility subsequently
requested that the mercury compliance schedule be extended until 9/ 1 /04, to provide additional time
for the facility to implement clean sampling techniques. This request cannot be granted, since the
Division has already required all 155 subject facilities to begin using Method 1631 for compliance
purposes by 9/ 1 /03. The facility also requested that the monitoring frequency be changed to
2/month when using Method 1631 analysis. Once again, this request cannot be granted, since a
weekly monitoring frequency is consistent with all other Grade 4 facilities that have mercury limits.
• Beryllium. The facility requested the proposed effluent limit for beryllium be suspended. The facility
reported that the beryllium data used in the reasonable potential analysis was ultimately rejected due
to QA/QC problems discovered at the contract laboratory. The reported maximum detection (0.37
ug/1) was below accepted practical quantitation limits (2 ug/1), and run without corresponding low-
level standards. The laboratory has acknowledged the QA/QC deficiencies and has corrected the
problems beginning with effluent samples collected in April 2002. The Division concurs that the
historical beryllium data set is unreliable. Therefore, the Division has dropped the beryllium limit in
the FINAL permit, and will require the facility to continue quarterly effluent monitoring for beryllium
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

NPDES Permit Issuance
Permit No. NC0024325
North Buffalo WWTP
Page 2
under the pretreatment LTMP program. This data will be reviewed again for reasonable potential
analysis at the next permit renewal.
• Ammonia/Summer Season. The draft permit includes both summer and winter limits for ammonia,
similar to the previous permit. Summer limits are more stringent than winter limits. The facility
requested that the month of April be designated as a "winter month" rather than "summer month" for
ammonia, based on the contention that wastewater temperatures are still low in April. The Division
cannot concur with this request at this time. The definition of "Summer Period" is defined in state
regulations [15A NCAC 2B.0404 (c)1 as April 1- October 31. Therefore, such a request would require a
variance to a state rule. Requirements that must be met in order to be eligible for a variance are
located in General Statute 143-215(e), which include proving that 1) the discharge will not endanger
human health or safety; and 2) compliance with the rule from which the variance is sought cannot be
achieved by application of best available technology found to be economically reasonable, and would
produce serious hardship without equal or greater benefits to the public.
• Ammonia/Weekly Limit. The DRAFT permit included ammonia limits based on monthly average
limits only. Subsequent to the DRAFT permit, a DWQ Ammonia Permitting Policy (dated
10/15/2002, and available on the NPDES website) was approved by EPA Region 4, and is now being
implemented in NPDES permits. The ammonia policy addresses EPA concerns about the need for
both monthly average as well as weekly average permit limits for ammonia (NH3-N). For municipal
facilities with monthly average ammonia limits, a multiplier of 3 will be used to establish weekly
average limits. The multiplier was derived from performance data for eight municipal facilities. This
FINAL permit implements the ammonia policy with the addition of weekly average ammonia limits of
12 mg/1 (summer) and 24 mg/1 (winter).
■ Cyanide PQL. The facility requested that the NPDES permit quantitation level for cyanide be
designated as 20 ug/1, based on a cyanide PQL study conducted by the City of Winston-Salem. The
Division cannot concur with this request. The Winston-Salem study was a site -specific
determination, and results may not be applicable to wastewater from the Greensboro facility.
However, the Division will consider results of any site -specific PQL study that the facility may perform
in the future. Based on recent discussions with US EPA, a practical quantitation level (PQL) of 10
ug/1 was agreed upon for NC NPDES permitting, and is considered achievable by many contract
laboratories. For compliance purposes, all values below 10 ug/1 (both detects and non -detects) will
be considered "zero."
■ Selenium. EPA commented on the DRAFT permit that the reasonable potential analysis indicated the
potential for selenium to exceed its allowable effluent concentration of 5.1 ug/1. The data set (n= 14)
used for this evaluation was collected over the period 8/99-12/00, and included a single detection at
the PQL of 2 ug/1, with all other values reported as <2 ug/1 or <5 ug/1. It does not appear that any
additional effluent selenium data has been collected since that time. A re-evaluation of the data
shows no reasonable potential if the data set excludes non -detects reported as <5 ug/1 (n= 4), since
this data adds variability to the statistical evaluation. Based on this re-evaluation, no limit is
proposed for selenium. However, quarterly selenium monitoring has been added to the FINAL permit,
and data will be re-evaluated for reasonable potential analysis at the next permit renewal. In order to
reduce unnecessary variability, it is recommended that the facility request the lab to analyze these
samples at the same PQL.
■ Total Metals. EPA commented on the DRAFT permit that metals should be specified as 'Total" in the
effluent sheet. This change has been incorporated into this FINAL permit.
• Total Residual Chlorine. Please note that the Division is currently in the process of implementing a
water quality standard for Total Residual Chlorine (TRC) based on the recent Triennial Review. The
standard has been approved by the EMC, and NPDES expects to introduce permit limits statewide in
April 2003. Although TRC is not currently limited in this permit, the Division recommends that you
prepare a budget and schedule construction of facility upgrades to restrict the discharge of TRC, or
explore alternative methods of disinfection. A review of recent effluent DMR data indicates this
facility's effluent TRC concentrations generally range from 100-400 ug/1. Future renewals of this
permit will include a TRC limit of between 17 ug/L and 28 ug/L, assuming the TRC water quality
standard receives final approval.
• Extreme Weather. The facility requested that the adverse weather/dangerous stream sampling
provisions provided in state regulations [15A NCAC 2B.0505 (c)(4)] be included in the FINAL permit.
In response, this language has been added to the bottom of the effluent sheet.
• Daily Definition. The facility requested that the definition for "Daily" sampling be included in the
FINAL permit. The state definition provided in 15A NCAC 2B.0503 (5) states that "Daily" means every
day on which a wastewater discharge occurs except Saturdays, Sundays, and legal holidays unless
otherwise specified by the Director. This definition has been added to the bottom of the effluent
sheet.

NPDES Permit Issuance
.Permit No. NC0024325
North Buffalo WWTP
Page 3
• Treatment Components. The facility provided updated information on the wastewater treatment
upgrades, which has been incorporated in the Supplement to Permit Cover Sheet.
• Renewal Requirements. Please note that the U.S. EPA changed the NPDES permit application
requirements (per 40 CFR 122) for municipal facilities, effective August 1, 2001. EPA Forms 1 and 2A
must be used for your next permit renewal application, and additional analyses will be required. Any
data submitted cannot be over 4 '/2 years old. The new application requirements include:
> Conduct three Priority Pollutant Analyses (PPAs) and submit results with your renewal
application. Samples must be representative of the seasonal variation in the discharge. The
new PPA requirements are included in Part D of EPA Form 2A.
➢ Conduct four toxicity tests for an organism other than Ceriodaphnia and submit results with
your renewal application. The tests should be conducted quarterly, with samples collected on
the same day as your current toxicity test. Contact the Aquatic Toxicology Unit at (919) 733-
2136 for guidance on conducting the additional tests.
• Pretreatment Data. Please include all future Pretreatment LTMP effluent data in the applicable
monthly Discharge Monitoring Reports.
The following items that appeared in the DRAFT permit remain in this FINAL permit:
• Nutrient Limits. This facility discharges to nutrient sensitive water (NSW) and already has total
phosphorus limits of 2 mg/1 as a result of the NSW strategy. In 1997 the Clean Water Responsibility
Act (House Bill 515) was enacted, with the intent to strengthen the control of nutrients from all
discharges to NSW waters. Facilities permitted to discharge > 500,000 gallons per day, and any new
or expanding facilities, are subject to nutrient limitations for total nitrogen and total phosphorus
according to House Bill 515 requirements. The House Bill 515 nutrient limitations are effective
January 1, 2003, unless a compliance extension was received and approved by the Division. Since an
extension was approved, the total nitrogen limit will be deferred until results of a nutrient response
modeling effort are completed. Please note that modeling results may result in limits lower than
those mandated by House Bill 515.
• Nutrient Monitoring. An increase in effluent nutrient monitoring frequency from monthly to weekly
for total nitrogen and total phosphorus.
• Chronic Toxicity. An update to the chronic toxicity test language, which was revised in 1999 to
include different follow-up procedures upon a test failure.
• Nutrient Reopener. Deletion of Special Condition H, Nutrient Reopener, since permit reopener
language is already present in the boilerplate (Part II, Section B. 13).
• Ammonia. There are no changes in the ammonia monthly average effluent limit at this time.
However, please be aware that an ammonia TMDL is currently in development, which may require
more stringent permit limits in the future.
• Instream Monitoring. Instream monitoring requirements in Effluent Sheet A (1) have been waived as
long as the permittee maintains membership in the Upper Cape Fear River Basin Association
(UCFRBA). The UCFRBA conducts instream monitoring at one upstream station and one downstream
station associated with this discharge.
• Metals Limits. Effluent limits and weekly monitoring have been added for cyanide, chromium, nickel,
and mercury, which showed reasonable potential to exceed applicable water quality
standards/criteria. However, maintain same monitoring as last permit for copper, zinc, and iron;
these compounds showed reasonable potential to exceed state action levels, but per the Division
Action Level Policy no limits are necessary since the facility has been compliant with its chronic
toxicity test limit.
• Monitoring. A decrease in monitoring frequency from monthly to quarterly for fluoride and chloride,
since neither compound showed reasonable potential to exceed applicable water quality
standards/criteria.
• Permit Expiration. Extend the permit expiration date to June 30, 2006.
Please note that the receiving stream (North Buffalo Creek) is listed as an impaired water in North
Carolina's Draft 2000 303(d) list. The entire stream is listed as biologically impaired due to unknown
causes, with a Not Supporting (NS) use rating. Currently TMDLs are in preparation for ammonia and
fecal coliform bacteria. If there is noncompliance with permitted effluent limits and degradation of North
Buffalo Creek can be attributed to the facility, then additional mitigative measures may be necessary.

NPDES Permit Issuance
• Permit No. NC0024325
North Buffalo WWTP
Page 4
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 a demand is made, this
permit shall be final and binding.
Please take notice 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, the
Division of Land Resources, the Coastal Area Management Act, or any other federal or local governmental
permit.
If you have any questions concerning this permit, please contact Tom Belnick at telephone number (919)
733-5083, ext. 543.
Sincerely,
Alan W. Klimek, P.E.
cc: Madolyn Dominy, EPA (Revised Fact Sheet + Permit + Comments)
Winston Salem Regional Office, Water Quality (Revised Fact Sheet + Permit)
Aquatic Toxicology Unit (Permit)
Central File
NPDES File

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8/14/2002 North Buffalo
LONG TERM MONI'
PO1W:
L.QL=
LRLR
PERMIT NO.
< 10
4.10
SAMPLE LOC.
BERYLLIUM
MERCURY
SAMPLE DATE
INF.
EFF
% removal.
EFF
% removal
6/1/2001
6/2/2001
6/3/2001
6/4/2001
6/5/2001
6/6/2001
6/7/2001
0.00018
0.00036
-100%
<
0.0002
<
0.0002
0%
6/8/2001
6/9/2001
6/10/2001
6/11/2001
6/12/2001
6/13/2001
0.0013
0.0005
62%
0.00053
<
0.0002
62%
6/14/2001
<
0.00008
<
0.0002
6/15/2001
<
0.0002
6/16/2001
10.00006
6/17/2001
6/18/2001
<
0.00006
<
0.0002
6/19/2001
<
0.00006
<
0.0002
6/20/2001 <
0.00006
0.000075
-25%
<
0.0002
0.00023
-15%
6/21/2001
0.00015
<
0.0002
6/22/2001
0.00037
<
0.0002
6/23/2001
6/24/2001
6/25/2001
0.00022
< 0.0002
6/26/2001
0.00046
<
<
0.0002
_
6/27/2001
0.00012
0.00014
-17%
0.00027
0.0002
26%
6/28/2001
0.0004
<
<
0.0002
6/29/2001
0.000091
0.0002
6/30/2001
7/1/2001
7/2/2001
0.00024
<
0.0002
7/3/2001
1
0.00012
<
0.0002
7/4/2001
7/5/2001
0.000093
<
0.0002
7/6/2001
0.00018
<
0.0002
7/7/2001
7/8/2001
7/9/2001
0.00019
<
0.0002
7/10/2001
0.00025
<
0.0002
7/11/2001
0.00034
<
0.0002
7/12/2001
0.000082
<
0.0002
7/13/2001
0.00013
<
0.0002
7/14/2001
7/15/2001
7/16/2001
<
0.00006
<
0.0002
7/17/2001
<
0.00006
<
0.0002
7/18/2001
<
0.00006
<
0.0002
7/19/2001
0.00018
<
0.0002
7/20/2001
0.00022
<
0.0002
7/21/2001
7/22/2001
7/23/2001
0.00017
<
0.0002
7/24/2001
0.00017
<
0.0002
7/25/2001
0.00019
<
0.0002
7/26/2001
0.00014
<
0.0002
7/27/2001
0.00017
<
0.0002
7/28/2001
7/29/2001
7/30/2001
0.00013
<
0.0002
7/31/2001
0.0002
<
0.0002
8/1/2001
0.000091
<
0.0002
8/2/2001
0.00011
<
0.0002
8/3/2001
0.00022
<
0.0002
8/4/2001
8/5/2001
8/6/2001
0.00018
<
0.0002
8/7/2001
0.00027
<
0.0002
8/8/2001
0.000093
<
0.0002
8/9/2001
<
0.00006
<
0.0002
8/10/2001
<
0.00006
<
0.0002
8/11/2001
8/12/2001
8/13/2001
<
0.00006
<
0.0002
8/14/2001
<
0.00006
<
0.0002
8/15/2001
<
0.00006
<
0.0002
8/16/2001
0.000092
<
0.0002
8/17/2001
0.00039
<
0.0002
8/18/2001
8/19/2001
8/20/2001
0.0001 Page 1
<
0.0002
/✓oem'
3UFf.�-1,0

8/14/2002 North Buffalo
LONG TERM MONE
POTW: _
PERMIT NO.
SAMPLE LOC.
BERYLLIUM
MERCURY
SAMPLE DATE
INF.
EFF
% remova
INF.
EFF
% removal
8/21/2001
0.00039
<
0.0002
8/22/2001
0.0005
<
0.0002
8/23/2001
8/24/2001
8/25/2001
8/26/2001
8/27/2001
8/28/2001
8/29/2001
8/30/2001
—
8/31/2001
9/1/2001
9/2/2001
9/3/2001
9/4/2001
9/5/2001
<
0.00006
<
0.00006
0%
0.00031
<
0.0002
35%
9/6/2001
917/2001
9/8/2001
9/9/2001
9/10/2001
9/11/2001
9/12/2001
0.00047
0.00036
23%
0.0009
<
0.0002
78%
9/13/2001
9/14/2001
9/15/2001
9/16/2001
9/17/2001
9118/2001
9/19/2001
0.00028
0.00017
39%
<
0.0002
<
0.0002
0%
9/20/2001
9/21/2001
9/22/2001
9123/2001
9/24/2001
9/25/2001
9/26/2001
0.00033
0.00046
-39%
0.00051
<
0.0002
61%
9/27/2001
9/28/2001
9/29/2001
9/30/2001
10/1/2001
10/2/2001
10/3/2001
10/4/2001
10/5/2001
10/6/2001
10/7/2001
10/8/2001
10/9/2001
10/10/2001
10/11/2001
10/1212001
10/13/2001
10/14/2001
10/15/2001
10/16/2001
10/17/2001
10/18/2001
10/19/2001
10/20/2001
10/21/2001
10/22/2001
10/23/2001
10/24/2001
10/25/2001
10/26/2001
10/27/2001
10/28/2001
10/29/2001
10/30/2001
10/31/2001
11/1/2001
11/2/2001
11/3/2001
11/4/2001
11/5/2001
11/6/2001
11/7/2001
11/8/2001
11/9/2001
P
ge 2

8/14/2002 North Buffalo
LONG TERM MONE
POTW:
PERMIT NO.
SAMPLE LOC.
BERYLLIUM
MERCURY
SAMPLE DATE
INF.
EFF
% removal
INF.
EFF
% removal
11/10/2001
11/11/2001
11/12/2001
11/13/2001
11/14/2001
11/15/2001
11/16/2001
11/17/2001
11/18/2001
11/19/2001
11/20/2001
11/21/2001
11 /22/2001
11/23/2001
11/24/2001
11/25/2001
11/26/2001
11/27/2001
•
11/28/2001
11/29/2001
11/30/2001
12/1/2001
12/2/2001
12/3/2001
12/4/2001
12/5/2001
0.00013
<
0.00006
54%
0.0005
<
0.0002
80%
12/6/2001
12/7/2001
12/8/2001
12/9/2001
12/10/2001
12/11/2001
12/12/2001
0.00027
<
0.00006
78%
0.00033
<
0.0002
39%
12/13/2001
12/14/2001
12/15/2001
12/16/2001
12/17/2001
12/18/2001
12/19/2001
<
0.00006
<
0.00006
0%
<
0.0002
<
0.0002
0%
12/20/2001
12/21/2001
12/22/2001
12/23/2001
12/24/2001
12/25/2001
12/26/2001
0.000087
<
0.00006
31%
0.00083
<
0.0002
76%
12/27/2001
12/28/2001
12/29/2001
12/30/2001
12/31/2001
1/1/2002
1/2/2002
1/3/2002
1/4/2002
1/5/2002
1/612002
117/2002
1/8/2002
1/9/2002
1/10/2002
1/11/2002
1/12/2002
1/13/2002
1/14/2002
1/15/2002
1/16/2002
1/17/2002
1/18/2002
1/19/2002
1/20/2002
1/21/2002
1/2212002
1/23/2002
1/24/2002
1/25/2002
1/26/2002
1/27/2002
1/28/2002
1/29/2002
Page 3

8/14/2002 North Buffalo
LONG TERM MOM'
POTW:
PERMIT NO.
SAMPLE LOC.
BERYLLIUM
MERCURY
SAMPLE DATE
INF.
EFF
% remova
INF.
EFF
% removal
1/3012002
1/31/2002
2/1/2002
2/2/2002
2/3/2002
2/412002
2/512002
-�-
2/6/2002-�--�
2
8/2002:C�C
Cam:
2/9/2002
-�
2/10/2002
2/11/2002
2/12/2002
2/13/2002
2/14/2002
2/15/2002
2/16/2002
2/17/2002
2/1812002
2/19/2002
2/20/2002
2/21/2002
2/22/2002
2/23/2002
2/24/2002
2/25/2002
2/26/2002
2/27/2002
2/28/2002
3/1/2002
3/2/2002
3/3/2002
3/4/2002
3/5/2002
3/6/2002
<
0.0002
<
0.0002
0%
0.00036
<
0.0002
44%
3/7/2002
3/8/2002-�-
3/9/2002
3/10/2002
3/11/2002
3/12/2002
315/20021�'.■
3/14/2002
3/1512002
3/16/2002-�--�
3/17/2002-•-
3/18/2002
3/19/2002
3/20/2002
3/21/2002
3/22/2002
3/23/2002
3/24/2002
3/25/2002
3/26/2002
3/27/2002
-•-
3/2912002,_,
3/2912002
3/3/2002
3/31/2002
4/1/2002
-�
•
4/2/2002
-•
•
4/3/2002
-•
•
4/4/2002
C-•-
•
42002
4/6/2002
-,
4/7/2002
-•-
4/8/2002
4/9/2002
'.
4/1012002
4/11/2002
4/12/2002
4/13/2002
4/14/2002
4/15/2002
4/16/2002
4/17/2002
4/16/2002
4/19/2002
4/20/2002
Page 4

8/14/2002 North Buffalo
LONG TERM MOM'
POTW:
PERMIT NO.
SAMPLE LOC.
BERYLLIUM
MERCURY
SAMPLE DATE
INF.
EFF
% removal—
INF.
EFF
% removal
4/21/2002
4/22/2002
4/23/2002
4/24/2002
4/25/2002
4/26/2002
4/27/2002
4/28/2002
4/29/2002
4/30/2002
5/1/2002
<
0.002
<
0.002
0%
0.0075
<
0.0002
97%
5/2/2002
f
5/3/2002
5/4/2002
5/5/2002
5/8/2002
5/7/2002
5/8/2002
5/9/2002
Ilf‘f
5/10/2002
5/11/2002
5/12/2002
5/13/2002
5/14/2002
5/15/2002
5/16/2002
5/17/2002
5/18/2002
5/19/2002
5/20/2002
5/21/2002
5/22/2002
5/23/2002
5/24/2002
5/25/2002
5/26/2002
5/27/2002
5/28/2002
5/29/2002
5/30/2002
5/31/2002
6/1/2002
6/2/2002
.
6/3/2002
6/4/2002
6/5/2002
6/6/2002
6/7/2002
6/8/2002
6/9/2002
8/10/2002
6/11/2002
6/12/2002
6/13/2002
6/14/2002
6/15/2002
6/16/2002
6/17/2002
6/18/2002
6/19/2002
6/20/2002
6/21/2002
6/22/2002
6/23/2002
6/24/2002
6/25/2002
6/26/2002
1
6/27/2002
6/28/2002
6/29/2002
_
6/30/2002
c.0 Ni
v
Page 5

as far as I'm concerned
72,4 co►i cktv.
Subject: as far as I'm concerned
Date: Tue, 16 Apr 2002 14:11:41 -0400
From: [e-mail]
To: [e-mail]
due to resolution of outstanding issues, you can issue City of Cramerton
and City of Greensboro North Buffalo Creek.
1 of 1 4/16/02 3:03 PM

NC0024325 - Greensboro North Buffalo Crcc
994 0.41 r'+i tti{A
Subject: NC0024325 - Greensboro North Buffalo Creek
Date: Fri, 15 Feb 2002 13:11:16 -0500
From: [e-mail]
To: [e-mail]
CC: [e-mail], [e-mail], [e-mail]
1. The RPA shows that Se is violated, but due to the LTMP, no
required. Please explain why no limit is required.
limit is
2. The RPA and data and Ag show lots of zeros for data.
Were the detection limits for these sufficiently sensitive such that a
non-detect/zero value is meaningful that NC's WQS aren't being exceeded.
DMR
for Cd,
Pb,
3. The permit does not contain weekly average limits for total ammonia,
as required by 40 CFR 122.45(d)(2). I know this is a global issue for
many NC municipal permits and we are in discussions with Dave to resolve
this.
4. Part A.1 should say "pH", rather than "PH".
5. Part A.1 says "TSR", while footnote 2 says "TSS". These should be
consistent.
6. It is my understanding that the metals will now be specified as
"total".
thanks. Marshall
ttfrti
1 of 1 2/18/02 11:27 AM

News & Record
North Carolina, Guilford County
Published by
News & Record, Inc.
Greensboro, North Carolina
Affidavit of Publication 8/10/01
Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified and authorized by law to administer oaths,
personally appeared Ashley Bowles who being first duly sworn, deposed and says:
1. That she is the Publisher's Representative of the Greensboro News & Record, Inc. a corporation, engaged in the publication of newspapers
known as "News & Record', published, issued and entered as second class mail in the City of Greensboro in said County and State.
2. That she is authorized to make this affidavit and sworn statement; that the notice or other legal advertisement, a copy of which is attached
hereto, was published in the News & Record on the above listed dates.
3. That the said newspaper (or newspapers) in which such notice, p
each and every such publication, a newspaper meeting all of the re
North Carolina and was aqualjfied newspaper within the meaning
Publisher's Representative
Sworn to and subscribed before me, this
Notary Public
, document, or legal advertisement was published was, at the time of
ents and qua ' ca I. of Section 1-597 of the General Statutes of
i it 7, the - ral Statut of . Carolina.
My commission expires: August 23, 2005
O4� day of
2001.
VALERIE McNEIL
NOTARY PUBLIC
GUILFORD COUNTY, NC
Commission Expires 8-23-2005
Name Ad # Date Edition Class PO Ad Copv
NCDENR/DWQ/NPES
1202520 08/10/01 News & Record 400 NC0024325 PUBLIC NOTICE STATE

Ad # 11202520
Date 08/09/2001 Time 12:03 PM
PUBLIC NOTICE
STATE OF NORTH CAROUNA
ENVIRONMENTAL
MANAGEMENT
COMM LS SION/NPDES UNT
1617 MAA L SERVICE
CENTER
NOTFICCAIJON OF N ENTT0
IS SUE A NPDES WASTEWATER
PERMIT
On the basisotthorough sta1
review and app icatia n of NC
General Statute 143.21, Pub-
ic law 92-500 and other law-
ful standards and regulatb nS
the North Carolina Environ-
mental Ma nagemen t C omm ts-
sion proposes to Issue a
National Pollutant Discharge
Elimination System (NPDES)
wastewater d Isdharge permit to
the person(s) listed belowef-
fecive 45 days tom the pub-
idh date ofthisnotce.
Witten comments regarding the
proposed permit will be ac-
cepted unti 30 days after the
publish date of this notice. All
comments receNed prior to
that date are considered in the
final determinations receding
the proposed permit. The
Drector of the NC Division of
Water Quail), may decide to
hold a public meethg for the
pro posed permit should the
Division receive a significant
degree of public i Merest.
Copies of the draft permit and
athe rsu ppo rti ng information
on fie used to determine con-
ditions present In the draft
permit ate available upon re-
quest and payment of the
costs of reproduction. Mail
comments and /o r requests for
ihbrmation to the NC Division
of Water Qua at the above
address or call Ms. Christie
Jackson at(919) 733-5083,
extension 538. Please hdude
the N PD ES permit number
(attached) in any communica-
tion. in terested person s ma y
also visit he Division of Water
Qualhy at 512 N. Salisbury
Street. Raleigh, NC
27604-1148 between the
hourso18:00 a.m and 5:00
Fier. to review inbrmation on
NP DES Permit Number
NC0024325. GREENSBORO,
CITY-N BUFFALO CRK. PO BOX
3136. GREENSBORO,NC
27402 has applied for a per-
mit renewal br a facilitylo-
cated in GUILFORD County
disdtargbi treated wastewa-
ter into NORTH BUFFALO CRK
in the CAPE FEAR River Bash.
Cu really ammonia, phospho-
rus, DO, cyan ide,chromum,
nickel, mercury, and berylum
are ware qu aity limited. This
discharge may affect future
allocations In this portion of
the receiving stream.
Ad shown is not actual print size
Nicdthl

RE: Comments on NPDES Final Draft Permits
Subject: RE: Comments on NPDES Final Draft Permits
Date: Tue, 12 Nov 2002 11:58:50 -0500
From: "Groome, Martie" <[e-mail]>
To: "Williams, Allan" <[e-mail]>
CC: "Tom Belnick" <[e-mail]>
6ieI4tilv 6141,(4,,,,d4
a) (f./614.
Yes, Allan, thank you so much for catching this. That paragraph should not have been
in the TZO document at all since we already have a limit there. I will notify state
to delete this section in the TZ Osborne document. That's what I get for using my
"Save As" document function Thanks again.
Original Message
> From: Williams, Allan
> Sent: Tuesday, November 12, 2002 7:54 AM
> To: Groome, Martie
> Subject: RE: Comments on NPDES Final Draft Permits
> Martie, this was in the TZO comments; didn> '> t you mean to refer to the TZO TRC
limit? Allan
> Future TRC Limit in NPDES Permit Clarification
> If the outcome of the recent Triennial Review public hearings results in total
residual chlorine remaining as an > "> action level> "> as opposed to a state stream
> "> standard> "> , would a TRC limit still be placed in the next North Buffalo NPDES
permit? What is the timetable on the Triennial Review decisions?
Original Message
> From: Groome, Martie
> Sent: Monday, November 11, 2002 6:32 PM
To: 'Tom Belnick'
> Cc: White, Arthur; Williams, Allan; Hicks, Barbara
> Subject: Comments on NPDES Final Draft Permits
> Tom, hope you had a nice holiday today. Attached are the City of
Greensboro comments/requests on the final draft NPDES permits. Thanks for your help.
Call/email if you need anything else.
Martie Groome
> 336-375-2229
> « File: North Buffalo Final Draft Permit Comments -Nov 2002.doc »
<<
File: T. Z. Osborne Final Draft Permit Comments.doc »
I of I 1 1/I2/02 2:28 PM

Comments on NPDES Final Draft Permits
Subject: Comments on NPDES Final Draft Permits
Date: Mon, 11 Nov 2002 18:32:28 -0500
From: "Groome, Martie" <[e-mail]>
To: "Tom Belnick" <[e-mail]>
CC: "White, Arthur" <[e-mail]>,
"Williams, Allan" <[e-mail]>,
"Hicks, Barbara" <[e-mail]>
Tom, hope you had a nice holiday today. Attached are the City of Greensboro
comments/requests on the final draft NPDES permits. Thanks for your help.
Call/email if you need anything else.
Martie Groome
336-375-2229
«North Buffalo Final Draft Permit Comments -Nov 2002.doc»
«T. Z. Osborne Final Draft Permit Comments.doc»
MNorth Buffalo Final Draft Permit Comments -Nov 2002.doc
Name: North Buffalo Final
Draft Permit
Comments -Nov
2002.doc
Type: Microsoft Word
Document
(application/msword)
Encoding: base64
Description: North Buffalo Final
Draft Permit
Comments -Nov
2002.doc
Download Status: Not downloaded with
message
ET. Z. Osborne Final Draft Permit Comments.doc
Name: T. Z. Osborne Final Draft Permit
Comments.doc
Type: Microsoft Word Document
(application/msword)
Encoding: base64
Description: T. Z. Osborne Final Draft Permit
Comments.doc
Download Status: Not downloaded with message
1 of 1 11/12/02 2:27 PM

Ni�oz43L5
CITY OF GREENSBORO
NORTH BUFFALO NPDES PERMIT [NC0024325] CHANGES
AND COVER LETTER CHANGES REQUEST
PERMIT CHANGE REQUEST
Mercury Limit — Change in compliance schedule end date and monitoring
frequency
We request that the mercury compliance schedule start with the permit effective date and
end one year after the date of the implementation of Method 1631 for mercury analysis in
North Carolina [September 1, 2003]. This would result in a mercury limit effective date
of September 1, 2004. Until we can reliably analyze for mercury using the new low-level
method, we will have no data on which to base any compliance schedule activities. It
will take time to train Greensboro staff to conduct clean metals sampling. For
convenience and auditing purposes, we would also like to work with a local laboratory
and currently there is no laboratory located in North Carolina that is certified to conduct
Method 1631. In addition, there have been recent EPA changes to the 1631 method.
We request that the permit monitoring frequency for mercury be changed to 2/month
when using the low-level 1631 analysis method and clean sampling method. The City of
Greensboro laboratory will not seek certification for Method 1631. The estimated cost
for the 1631 analysis is 5-10 times the current price for the Method 245.1 mercury
analysis.
Process Train Description — New Process description reflecting recent construction
The following is the current process train description that should be listed in the North
Buffalo NPDES permit:
Bar Screen
Influent Flow Measurement
Aerated Grit Removal
Primary Settling
From here the flow continues through one of the following treatment trains:
Original Train New Train
Trickling Filters Activated Sludge with Nitrification
Activated Sludge with Nitrification and Final Settling
Step feed process [optional]
Chemical Addition for Phosphorus Removal
Final Settling
The flows from the two separate trains come together and continue through the following
processes:
Effluent Sand Filters
Effluent Flow Measurement
Chlorination
Effluent Aeration

IUC cpY_3ZS
North Buffalo Permit Changes and Permit Cover Letter Changes Request -Page 2
COVER LETTER CHANGE REQUESTS
Cyanide quantitation level -Addition of Study Language
We request the addition of the following sentence in the cyanide paragraph:
"The City of Greensboro may conduct a site -specific cyanide quantitation level
study and the results of that study can be used by the DWQ NPDES unit to
determine a new cyanide quantitation level. The cyanide quantitation level can
then be changed through a permit modification."
Permit Expiration Date
According to the T. Z. Osborne cover page, the permit expiration date for the Osborne
facility was extended to 2006. There was no mention of the North Buffalo expiration
date in the North Buffalo Cover Letter. We request that the same extension be
granted/mentioned in the North Buffalo cover letter.
COMMENTS
April as Summer Month —Comment Only
Please provide us with the proper procedure to request a variance to the state regulation.
Selenium Reasonable Potential Evaluation -Comment Only
Thank you for the explanation of the use of different detection limits as it relates to data
variability in the reasonable potential analysis. This is extremely important information
and we will strive to have the same lower reporting levels for all LTMP data. We will
also separate DMR data from LTMP data if the LRLs are different. We strive to have
"lower" LRLs for LTMP data on certain pollutants and do not feel that it is appropriate to
have our extra efforts [and extra expense!] create a statistical NPDES permit limit
situation.
If you have any questions, please do not hesitate to contact me at 336-375-2229.
Thanks for all your time and effort in the renewal of this permit.
Martie Groome

CITY OF GREENSBORO
T. Z. OSBORNE NPDES PERMIT [NC0047384] CHANGES
AND COVER LETTER CHANGES REQUEST
PERMIT CHANGE REQUEST
Mercury Limit — Change in compliance schedule end date and monitoring
frequency
We request that the mercury compliance schedule start with the permit effective date and
end one year after the date of the implementation of Method 1631 for mercury analysis in
North Carolina [September 1, 2003]. This would result in a mercury limit effective date
of September 1, 2004. Until we can reliably analyze for mercury using the new low-level
method, we will have no data on which to base any compliance schedule activities. It
will take time to train Greensboro staff to conduct clean metals sampling. For
convenience and auditing purposes, we would also like to work with a local laboratory
and currently there is no laboratory located in North Carolina that is certified to conduct
Method 1631. In addition, there have been recent EPA changes to the 1631 method.
We request that the permit monitoring frequency for mercury be changed to 2/month
when using the low-level 1631 analysis method and clean sampling method. The City of
Greensboro laboratory will not seek certification for Method 1631. The estimated cost
for the 1631 analysis is 5-10 times the current price for the Method 245.1 mercury
analysis.
Process Train Description — New Process description reflecting recent construction
The following is the current process train description that should be listed in the T. Z.
Osborne NPDES permit:
Bar Screen
Influent Pump Station
Grit Removal
Pre -aeration
Influent Flow Measurement
Primary Settling
3 MG Flow Equalization [optional]
Single Stage Activated Sludge with Nitrification
Chemical Addition for phosphorus removal
Final Settling
Effluent Sand Filters
Chlorination
Dechlorination
Post Aeration Cascade
Effluent Flow Measurement

Nc001730
T. Z. Osborne Permit Changes and Permit Cover Letter Changes Request -Page 2
COVER LETTER CHANGE REQUESTS
Cyanide quantitation level -Addition of Study Language
We request the addition of the following sentence in the cyanide paragraph:
"The City of Greensboro may conduct a site -specific cyanide quantitation level
study and the results of that study can be used by the DWQ NPDES unit to
determine a new cyanide quantitation level. The cyanide quantitation level can
then be changed through a permit modification."
Future TRC Limit in NPDES Permit Clarification rnoJ
If the outcome of the recent Triennial Review public hearings results in total residual No((
chlorine remaining as an "action level" as opposed to a state stream "standard", would a 6u F
TRC limit still be placed in the next North Buffalo NPDES permit? What is the timetable Co,titrvvei1'b
on the Triennial Review decisions? •
COMMENTS
April as Summer Month -Comment Only
Please provide us with the proper procedure to request a variance to the state regulation.
Stream Study MOA-Comment Only
Please provide us with the appropriate DWQ contact person and we will proceed with the
MOA request.
Selenium easonable Potential Evaluation -Comment Only Based on North Buffa o
NPDES Permit Cover Letter
Thank you for the explanation of the use of different detection limits as it relates to data
variability in the reasonable potential analysis. This is extremely important information
and we will strive to have the same lower reporting levels for all LTMP data. We will
also separate DMR data from LTMP data if the LRLs are different. We strive to have
"lower" LRLs for LTMP data on certain pollutants and do not feel that it is appropriate t
have our extra efforts [and extra expense!] create a statistical NPDES permit limit
situation.
If you have any questions, please do not hesitate to contact me at 336-375-2229.
Thanks for all your time and effort in the renewal of this permit.
Martie Groome
move
ijQ.r *
C
Most& '
Not

Draft Final- NC0024325- North Buffalo
Subject: Draft Final- NC0024325- North Buffalo
Date: Tue, 29 Oct 2002 13:50:24 -0500
From: Tom Belnick <[e-mail]>
To: [e-mail], [e-mail]
Hello folks- I'm attaching 1) Draft Final Cover Letter, which explains
all the changes incorporated SINCE the Draft permit; and 2) an updated
Effluent Sheet which incorporates the changes. Please read through the
proposed changes and let me know by Monday November 4th if you have any
outstanding issues. Next Monday I plan to send the proposed changes down
to EPA for their review. Then sometime in November you will receive a
FINAL permit, which still provides for a 30-day adjudication period.
Please call with any questions.
I'll get the same packet out to you for the South Buffalo facility later
today (hopefully).
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
M24325 cov Itr - final.doc
Name: 24325 cov ltr - final.doc
Type: Microsoft Word Document (application/msword)
Encoding: base64
24325 eff.doc
Name: 24325 eff.doc
Type: Microsoft Word Document (application/msword)
Encoding: base64
1 of 1 10/29/02 1:50 PM

08/07/2001 10:58 3367714630
NPDES PERMIT FACT SHEET
Page 6
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice:
Permit Scheduled to Issue:
State Contact
DIV OF WATER QUALITY WS PAGE 02/02
City of Greensboro- North Buffalo
NPDES No. NC0024325
08/15/01
10/01/01
If you have any questions on any of the above information or on the attached
permit, please contact Torn. Be1r ck at (9).9) 733-5038, extension 543_
Copies of the following are attached to provide further information on the permit
development:
• Reasonable Potential Analysis (majors only)
• Draft Permit
NPDES Recommendation by:
AiOnat»re
Regional. Office Comments
PJt: CO
Regional Recommendation
c(,'1VYALM..
Signature
Date
Reviewed and accepted bv:
Regional Supervisor:
NPDES Unit Supervisor:
Signature
Signature
Date
Page 6
Version: July 13, 2001

NO.556 P02
09/15/2001 23:02 TZ OSBORNE UJWTF ? 19197330719
Emailed to [e-mail] ncm.ail.net on 9-15-2001
Faxed to 91.9-733-0719 on 9-15-2001
Hard copy to fallow by US mail
September 15, 2001
Mr. Tom Belnick
Ms. Dave Goodrich
North Carolina Department of Environment and Natural. Resources
Division of Water Quality-NPDES Permit Section
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: NPDES Draft Pei
City of Greensboro
Dear Mr. Bclnick and Mr. Goodrich,
t #NC0024325
North Buffalo POTW
This purpose of this correspondence is to document the City of Greensboro Water
Resources Department's comments on the draft NPDES Permit for the North Buffalo
Wastewater Treatment Facility. We request a meeting to further discuss these comments
and additional supporting information with DWQ staff. The comments are as follows;
Special, Condition Af 3} Instream Study
The City of Greensboro requests that the special instream study be addressed in a
Memorandum of Agreement [MOM between the City and the State of North Carolina.
The City is in full agreement with the monitoring requirements of the study, but wishes to
handle the instream study in the same administrative manner [MOA] as the NPDES
stream monitoring included in the Upper Cape Fear River Basin Monitoring Coalition.
Mercury and Beryllium Lit aids
The City of Greensboro requests the opportunity to conduct a special study on mercury
and beryllium before NPDES permit limits are imposed for these; parameters. Please note
that the City of Greensboro has not previously 'Used "clean metals techniques" for any
metals sampling and analyses. The analyses are conducted ou aliquots of the daily 24-
hour comliosite samples collected by our automatic samplers. Llcrcury was detected in
only one of the 14 North Buffalo effluent samples analyzed. Currently all mercury and
beryllium. analyses for the North Buffalo POTW are conducted by a commercial
P.O. Box 3136 • Lire naboro, NO 27402-13136 • vrwtw.ei.greenoboro.nr..tie • [phone] '1"I'Y# 333.6930

09/15/2001 23:02 TZ OSBORNE WWTF 3 19197330719 NO.556 1703
September 15, 2001 Letter to Mr. Belni.ck and Mr.Ooodricll — Page: 2
laboratory and within thc past year, the Upper Cape Fear River Basin Association
QA/QC Committee discovered" Q,AJQC problems at this laboratoj We would like the
opportunity to conduct clean metals analysis split scrump e: analyses to determine if the
mercury and/or beryllium are actually present in the effluent.
We would propose to conduct the metals study over a 12-month period to ensure that all
weather [summer/winter limits], seasonal industrial discharge changes and various
POTW operating conditions have been assessed. As you are probably aware, there are
currently no "clean metals" sampling techniques for composite samples and only a
handful of laboratories in the country can conduct true "clean metals" analyses. None of
these laboratories have sought certification by the State of North Carolina. We would
like to discuss these issues with the DWQ NPDES Section as well as the DWQ
Laboratory Section in the initial planning stage of our study.
In addition to the effluent clean metals analyses study, the City of Greensboro
Pretreatment Section would concurrently investigate any potential significant sources of
mercury and beryllium. Our proposed study would include both the North Buffalo and
the T. Z. Osborne POTWs and would include metals other than mercury and beryllium
for clean sampling and analyses. Based upon the results.of the clean metals study, the
City of Greensboro reserves the right to request that the North Buffalo permit be
reopened to address other proposed metals limits that have been included in this draft
permit,
Winter/Summer Limits for Ammonia -Nitrogen
We request that April be designated as a "winter month" for the North Buffalo ammonia -
nitrogen NPDES permit limits, Nitrification [the conversion of ammonia nitrogen to
nitrate and nitrite] is a biological process and, as such, is subject to metabolic rate
changes when the temperature oftbe incoming wastewater changes. The purpose of the
NPDES summer/winter limits is to reduce the ammonia limit during the months when the
receiving stream temperature is highest, since stream dissolved oxygen levels are
inversely related to temperature. Like the receiving stream, the incoming POTW
wastewater temperature is also dependent in large part on the ambient temperature. April
ambient temperatures are still quite cold. The incoming wastewater temperature does not
increase substantially enough to be considered a summer month and the receiving stream
temperatures are still low enough to allow winter permit limits.
Cyanide Quantitation Level
We request that the NPDES permit quantitation limit for cyanide be designated as 20 ug/1
' based on the special cyanide study conducted by the City of Winston-Salem, North
Carolina. �.-•
Adverse er/Dangeraus Samalin Cauditions Provision
t vaguest that ow say ems vpowawricitualfAtaus +.a.1a1st4 concliiicata, taxmosa405 oontatied
in the State regulations be included in thc North Buffalo NP13ES permit conditions,

09/15/2001 23:02 TZ OSBORNE Wi4TF 4 19197330719 NO.556 PO4
September 15, 2001 Letter to Mr. Behiick and Mr.Goodrich — P
Corrections
We will provide a list of the current treatment train to replace the one in the draft permit.
The City of Greensboro appreciates the opportunity to comment on this permit and looks
forward to meeting with State staff to expedite timely reissuance of the North Buffalo
permit.
If you have any questions or need additional information, please do riot hesitate to contact
me at 336-375-2229 or by email at maatie,[e-mail]
Sincerely,
filaftv--/
Martha E. Broome
Laboratory and Industrial Waste Section Supervisor
cc: Allan Williams, Water Resources Director
Linda Miles, City Attorney
Arthur White, Water Reclamation Manager
Barbara Hall, North Buffalo 011C
Sharon Miller, Pretreatment Coordinator
American Canoe Association, c/o Terris, Pravlik and Million

09/15/2001 23:02 TZ OSBORNE WWTF 4 19197330719 NO.556 1301
•
ATER
sources
flzroitssonskitattro~
City of Greensboro
2350 Huffhne Mill DoaU
Me: 9/15/2001
Number of pages lineluding
McLeansville, NC 27301 this cover sheet) � a
Cs) Pi. Box 8138
0reenshore, 110 21402-3136
:11
Emo
To: TOM BELNICK
From; MARTIE GROOME
Phone [phone]omments:
COMMENTS S ON
NORTH BUFFALO
DRAFT NPDES
PERMIT
Fax [33611s2t•3523

Comments on North Buffalo draft NPDES Permit
Subject: Comments on North Buffalo draft NPDES Permit
Date: Sat, 15 Sep 2001 22:49:52 -0400
From: "Groome, Martie" <[e-mail]>
To: "'Tom Belnick'" <[e-mail]>
CC: "Williams, Allan" <[e-mail]>,
"White, Arthur" <[e-mail]>,
"Hall, Barbara" <[e-mail]>,
"Miles, Linda" <[e-mail]>,
"Miller, Sharon" <[e-mail]>
Tom, attached please find the City of Greensboro comments on the North
Buffalo NPDES draft permit. I really appreciate the time and effort you
have spent on this permit and related documents. In addition to this email,
I have also faxed this letter to you tonight. I will mail a hard copy to
you on Monday. There are a couple of other minor "clerical" corrections
that I will share with you on the phone. Thanks again. I'll see you
soon
«NB NPDES Draft Permit Comments 9-15-01.doc»
MNB NPDES Draft Permit Comments 9-15-01.doc
Name: NB NPDES Draft Permit
Comments 9-15-01.doc
Type: Microsoft Word Document
(applic ation/msword)
Encoding: base64
Download Status: Not downloaded with message
1 of 1
9/24/01 9:42 AM

/'P/1 IO7Z
REASONABLE POTENTIAL
Prepared by: Tom
Facility Name =
NPDES # =
Qw (MGD) =
ANALYSIS
Belnick, 06/08/01
Greensboro N. Buffalo
NC0024325
16
_
Qw (cfs) =
24.7552
7Q 10s (cfs)=
IWC (%) =
0.9
96.50
Parameter
Chronic CCC w/s7Q10 dil.
Acute CMC w/no dil.
Frequency of Detection
Decision
Decision
FINAL RESULTS, ug/I
FINAL RESULTS, ug/I
#Samples
# Detects
Monitor?
Limit?
Arsenic
Max. Pred Cw
Allowable Cw
Cadmium
Max. Pred Cw
Allowable Cw
Chromium
Max. Pred Cw
5.5
51.8
360
14
1
L.TkjP
0.0
2.1
15
47
0
L7MFT-
81.4
53
yr
Allowable Cw
Lead
Max. Pred Cw
- -- ---
Allowable C w
Copper (A.L.)
Max. Pred Cw
51.8
1022
6^EKCY
---
0.0
--_ ---
25.9
34
52
0
LTT/Y%
56.0
Allowable Cw
7.3
-
7.3
52
41
2/MONTO
Nickel
Max. Pred Cw
-
_
---
52
190.4
Allowable Cw
Silver (A.L.)
91.2
261
49
WEEKLY
YE S
.
Max. Pred Cw
Allowable Cw
Zinc (A.L.)
Max. Pred Cw
Allowable Cw
Cyanide
Max. Pred Cw
0.0
0.1
1.2
52
0
L T4 2P
- -
319.8
51.8
67
52
52
Z/fi1ON 7./
YES
38.4
20
1
51
1
- -
-
12
12
4
WEEKLY
- Allowable Cw
----------------- - -
Mercury
5.2
22
14
-WEEKLYT
Iron(A.L.)
Max. Pred Cw
Allowable Cw
Selenium
1900.5
1036.3
-
NA
51
L T,1 - -- ,
- -
•
-
996.0
1865.3
66.0
238.3 - �
1.6•
6.7
- - - - - ---
- -- -
Max. Pred Cw
_ __ _ Allowable Cw
Fluoride
-
Max. Pred Cw
Allowable Cw
Chloride(A.L.) mg/I
Max. Pred Cw
Allowable Cw
- - -
Beryllium
Max. Pred Cw
Allowable Cw
NA
- - --
14
---- -
NA
860,000
12
12
--_
14
Q VVRlety
T '
Q R/LY
WEEKLp
ES
1
Modified Data: Use 0.5 Detection Limit for non -detects
1
lASe.
pA t ,iav
_
r6144 4
VI-

gm Rip_
REASONABLE POTENTIAL ANALYSIS
Prepared by: Tom Bel nick, 06/08/01
Facility Name =
NPDES # =
Ow (MOD) _
Ow (cfs) =
Avgflaw (cls)=
!WC (%)
Greensboro N. buffalo
NC0024325
16
24.7552
25
49.80
HH, Ag slreamllow
1
Parameter
Chronic CCC w/s7010 dil. Acute CMC w/no dl.
FINAL RESULTS, ug/I FINAL RESULTS, ug/I
Frequency of Detection Decision
'Samples 0 Detects Monitor?
Decision
Limit?
Beryllium
Max. Pred Cw
Allowable Cw
Modified Data: Use 0.5 Detection Limit for non -detects
Parameter= Beryllium
Standard = 0.117
Dataset= LTMP99/00
ug/I
ModifiedData Nondelects RESULTS
HH.cancer
0.05 <0.1 Std Dev. 0.094
0.05<I
0.05<
0.05 <
0.05 <
0.05:<
0.05.<
0.05.<
0.05 <
0.05 <
0.22
011
0.15
0.37
Mean 0.096
C V 0.9741
Sample/S 14.000
Mutt Factor =
Max Value
Max Pred Cw
Allowable Cw
4.300
0.370!Ng/I
1-591 pg/I
0.235 j, I
14

$15
Parameter =
Standard =
Dataset=
Modified Data
I
1
1
2
1
1
1
1
1
1
2.5
2.5
2.5<
2.5
Arsenic
Parameter =
Cadmium
0.000
1.000
0.000
47.000
pg/I
pry!
mil
Parameter=
Standard =
Dataset=
ModifiedData
5
5
5
5
5<
5
Chromium
50
pgll
Standard =
2
AA
50
pgll
LTMP99/00
Nondetects
<2
<
<
<
<
<
<
<
<
<5
<
<
Dataset=
DMRs2000
DMRs2000
RESULTS
Modified Data
Nondetects
RESULTS
Nondetects
RESULTS
Std Dev. 0.707
1
<2
Std Dev.
<10
Std Dev.
6.664
Mean
C.V.
Sample#
1.500
1
<
Mean
<
Mean
7.019
0.471
1
<
C.V.
<
C.V.
0.949
14.000
1
<
.
Sample#
<
Sample#
53.000
1<
2.200�
Mutt Factor =
2.200
1
<
Mult Factor = 0.000
<
Mutt Factor =
Max Value
2.500
pgll
1
<
Max. Value
1.000
0.000
2.073
_
5�<
5
5
5<
5<
5<
5<
5.
5<
3--
5.-
5•:
5<
5<
5<
5,<
5<
Max Value
37.000
pgA
Max. Pred Cw
5.500
p9A
1
<
Max. Pred Cw
Allowable Cw
<
Max. Pred Cw
81.400
Allowable Cw
51.815
pgll
1
<
<
Allowable Cw
51.815
pgA
1<
1
<
1<
1<
1
<
<
1<
1
<
1<
1<
1<
1<
1<
1<
1
<
1<
1<
5<
5<
5<
5
_ 3'
5<
5'<
1<
1<
1
<
,:
1<
1<
1<
1<
5<
5<
18
1<
1
<
1<
5<
1<
5<
1
<
5<
1
<
12
1
<
5<
1
<
5<
1
<
10
1
<
5<
1
<
5<
1
<
5<
1
<
5<
1
<
5<
1
<
28
5<
5<
5<
5<
5<

-
r
Parameter
Lead
�__
0.000
12.500
0.000
52.000
rgrl
pg4
pg/1
Parameter=
Standard=
Dataset=
MoiifiedData
16
13
26
24
13
25
20
20
17
15
14
14
10
5<10
20
Copper(A.L)
pg/1
-
(Parameter=
Standard =
Nickel
pyil
RESULTS
Std Dev.
Mean
C.V.
Sample#
17.002
28.019
0.607
52.000
p9/l
pg/1
pg/1
Standard=
Dataset=
25
7
88
DMRs2000
DMRs2000
Nondetecls'RESULTS
Dataset= DMRs2000
ModfiedData
Nondetects
RESULTS
ModffiedData
Nondetects
12.5
<25
Std Dev.
Sid Dev
6.189
19
12.5
<
Mean
Mean
12.827
27
12.5
<
C.V.
C.V.
0.482
40
12.5
<
Sample#
Sample#
52.000
14
12.5
<
27
12.5
<
Mult Factor=
0.000
Mu1t Factor=
1,600
31
Mutt Factor= I 1.7001
12.5
<
Max Value
12.500
Max. Value
35.000
pg/1
27
Max. Value
112.000
190 400
91 194
12.5
<
Max Pred Cw
0.000
Max Pred Cw
58.000
Pg/1
23
Max. Pred Cw
12.5
<
Allowable Cw
25.907
Allowable Cw
7.254
4/1
57
,
Allowable Cw
12.5
<
28
12.5<
12.5
12.5
12.5<
12.5
30
<
�
20
<
27
_
22
<
36
12.5
<
13
12
11
15
11
29
12.5
<
21
12.5
<
29
12.5
<
41
12.5
<
23
12.5
<
5
_ 11
16
_- 5
10
14
5<10
10
-- 18.
14
11
<10
20
12.5
<
33
12.5
<
<10
_
23
12.5
<
25
12.5
<
18
12.5<
29
12.5<
12.5<-
12.5<
12.5
12.5
12.5
12.5'<
12.5
12.5
12.5<
12.5<
12.5
12.5
12.5<
12.5
12.5
12.5
12.5'<
12.5
12.5
12.5
12.5<
12.5
12.5<
12.5
12.5
5<10
30
36
<
30
<
37
<
12,
_ 10.
14'
- 14
12
5<10
35
10
5<10
5
5
13
13.
19'
11
11
-
15
5
<
<
64
,<
14
5<
112
<
18
<
11
_
38'
<10
16
.<
<10
18
.<
<
13
13
.<
<
16
28
<
50
5<10
36
<
11
5<10
1 35
46
<
14
29
<
5 <10
18
1

Parameter=
Silver(A.L).,,
Parameter=
Standard =
Dataset=
ModitiedData
80
91
195
246
113
108
93
96
117
91
86.
76.
73
10092
92
75
90
102
70
100
1136<
85
90
1
47
11313
104
Zino(A.L.)
Parameter=
Cyanide
pgll
4.317
7.366
0.586
71.000
pgn
pgll
pgll
Standard =
0.06
bg l
50
pgll
Standard =
5
Dataset=
DMRs2000
Nondetects
'
Dataset=
DMRs2000
_
ModdiedData
Nondetects
RESULTS
RESULTS
ModifedData
Nondetects
RESULTS
Sid Dev.
#DIViO!
Std Dev.
31.923
5
<10 .Std
Dev.
Mean
*DIVi01
Mean
94.615
5
<
Mean
C.V.
#DIVi0,
C.V.
0.337
5
<
C.V.
Sample*
0.000
Sam ple#
52.000
5
<
Sample#
5
<
Mutt Factor =
Mu* Factor =
1.300
5
<
Mutt Factor = 1.600
Max Value
0.000Ipg/1
0.000rpgll
Max. Value
246.000
;On
5
<
Max. Value
24.000
38.400
5.181
Max Pred Cw
Max. Pred Cw
319.800
pgll
5
<
Max Pred Cw
Allowable Cw
0.062 pgll
Allowable Cw
51.815
pg1
5
<
Allowable Cw
5<
5<
5
<
5
<
/
5
<
0
5
<
2
5
<
5
<
rr
5
<
5
���
10
R'
16
12
1'X
U99
5
<
13
5<
5
<
5
<
106
5
<
`
115
5
<
109
5
<
v
72
5
<
NN
Vk
79
5
<
ie
78
56
76
1
122
10
----�
V.,"107
�\
10
60
15
_
-
100
15
_
65
5
<
72
5
<
81
5<
90
5<
94
5
<
105
5
<
98
5<
65
10
79
5
<
80
5
<
73
55
5
<
5
<
11
10
10
5<
5<
14
20
10
19
5;<
5;<
5'<
51<
10;
51<
5<
5<<
51<
51<
1
1
1
i
—
1
—
a
I
1.
_-
i
1

Parameter=
Mercury
0.155
0.194
0.799
14.000
pg/I
pgn
pg/I
Parameter.
Standard =
Dataset=
ModifiedData
95
82
486.
905
314
101
128
143
153
117
105
80
96
91
110
105
93
79�
115
161
103
156,
1121
Iron(A.L.)
Parameter=
Selenium
pg/1
RESULTS
Std Dev.
Mean
C.V.
Samples
Mult Factor =
Max Value
Max. Pred Cw
Allowable Cw
0.707
1.500
0.471
14.000,
pg/I
pgfl
pg/I
Standard =
0.012
pgA
1000
pgA
Standard =
5
Dataset=
LTMP99/00
DMRs2000
Dataset=
LTMP99/00
Nondetects
<2
<
<
<
<
<
<
<
<
<5
RESULTS
ModifiedData
Nondetects
Nondetects
RESULTS
ModifiedData
0.25
<0.5
Std Dev.
Std Dev.
134.728
1
0.1
<0.2
Mean
Mean
146.353
1
0.67
C.V.
C.V.
0.921
1
0.1
<0.2
Samples
Samplett
51.000
2
0.1
<
1
0.1
<
Muff Factor = 3.400
Mult Factor=
2.100
1
12.200
0.25
<0.5
Max. Value
0.670
2.278
0.012
L
- _
Max. Value
905
p9/I
1
2.500
5.500
5.181
0.25
<
Max. Pred Cw
Max. Pred Cw
1901
pgA
1
0.25
<
Allowable Cw
Allowable Cw
1036
pgA
1
0.25<
l
0.1
<0.2
2.5
0.1
<
2.5<
0.1
<
2.5<
0.1
<
2.5<
1641
163
23
146
144
122
139
151
135
184
165
88
86
407
124
135
J59
64
El
95
_173
111
__l
{
{
213
115
77
83
55
45
88
— 1
=
—
I

I
Parameter =
Standard =
Dataset=
ModiliedData
650
660
830
740
760
710
650
710
520
670
680
770
Fluoride
pg/I
RESULTS
.Sid Dev
Mean
C.V
Sample#
Mutt Factor =
Max. Value
: Max. Pred Cw
;Allowable Cw
Parameter-
Chloride(A L.) mg/I
4.988
42.167
011E
12.000
j
Parameter =
Standard =
Datasel=
ModiliedDala
0.05
005
005
0.05
005
0.05
0.05
0.05
0.05
0.05
0.22
0.11
0.15
0.37
Beryllium
1800
Standard=
230
mg/
6.5
ug/I
AgLife
DMRs2000
Nondetects
Dataset=
DMRs2000
LTMP99/00
Nondetects
<0.1
<.I
<
<
<
<
<
<
<
<
78 214
695.833
0.112
12.000
ModfiedData
Nondetects
RESULTS
RESULTS
_
38
Std Dev.
Std Dev.
0.094
55
Mean
Mean
0.096
43
C.V. 1
C.V.
0.974
41
Sample#
Sample#
14.000
40
f
I 1.200
42
Mult Factor. I 1.2001
!Mull Factor =
4.300
83O.000
pgfl
39
Max Value
55 000 /rg11
66 000 pg/I
238.347.p9/I
1
Max. Value
0.370
pg/I
996.000144
36
Max Pred Cw
Max. Pred Cw
1.591
pg/I
pg/I
1865.323
pg/I
41
Allowable Cw
Allowable Cw
6.736
48
42
41
.

Parameter =
Standard =
Silver (A.L.)
0.06
Dataset= DMRs2000
ModifiedData Nondetects RESULTS
5 <10
5 <10
5 <10
5 <10
5 <10
5.
<10
5 <10
5 <10
5<10
5 <10
5 <10
5<10
5<10
5i<10
•
5<10
5<10
5 <10
5<10
5<10
5 <10
5' <10
5 <10
5 <10
5 <10
5 <10
5L<10
5 <10
5 <10
5 <10
5 <10
5' <10
5 <10
51 <10
5t<10
5 <10
5 <10
5l <10
5 <10
5 <10
51<10
5 <10
5 <10
5 <10
5 <10
r
5 <10
5 <10
5 <10
5 <10
5 <10
5 <10
5 <10
5 <10
Std Dev.
Mean
C.V.
0.000
5.000
0.000
Sample#
1 Mult Factor =
Max. Value
Max. Pred Cw
•
Allowable Cw
52.000
0.000
5.000 pg/I
0.000 pg/I
0.062 pg/I

tCPAdekil
NPDES/Non-Discharge Permitting Unit Pretreatment Information Request Form
NPDES OR NONDISCHARGE PERMITTING UNIT COMPLETES THIS PART:
Date of Request • k 2-t, \ t, 1
Facility (b‘-eer.\,,o -c / !J , (3.,c- cr..\t, C...v,A< 1iti,,-;-i-13
Permit # �,L oc, Zy32.S
Region 'w ,r r\ - Sr,\er.-,
Requestor 'etr,cK
Pretreatment A_D Towns- Keyes McGee (ext. 580)
Contact E-L Towns- Vaeant-Positien- Oeborw Go`ec-"at
M-R Towns- Dana Folley (ext. 523)
S-Z Towns- Steve Amigone (ext 592)
PRETREATMENT UNIT COMPLETES THIS PART:
Status of Pretreatment Program (circle all that apply)
1) the facility has no SIU's and does have a Division approved Pretreatment Program that isINACTIVE
2 the facility has no SIU's and does not have a Division approved Pretreatment Program
) e facility has (or is developing) a Pretreatment Program,'
2a) is Full Program with LTMP_C— or 2b) is Modified Program with STMP
4) t e acifity MUST develop a Pretreatment Program - Full Modified
5) additional conditions regarding Pretreatment attached or listed below
Flow Permitted Actual
% Industrial ci , '\
STMP time frame:
most recent
©., ZOs-rrser. ,rr,6 b
next cycle
% Domestic t S tr& i.
(S)L
T
MP
Pollutant
Check List
POC due to
NPDES/Non-
Discharge
Permit Limit
Required
by EPA*
Required by
503 Sludge"
POC due to SIIY"
Site specific POC (Provide Explanation)""
STMP V
Frequency
effluent
at
LTMP
Frequency at
effluent
BOD
4
Q'
M
✓
TSS
,/
4
Q
M
•/NH3
./".4
Q
M
✓Arsenic
✓
4
Q
M
4
Cadmium
4
✓
-✓
4
Q
M
d
Chromium
d
✓
✓
4
Q
M
d
Copper
q
✓
4
Q
M
✓
Cyanide
✓
✓
4
Q
h/l
d
Lead
d
✓
,/
4
Q
M
,/
Mercury
✓
4
Q
M
Molybdenum
4
Q
M
d
Nickel
q
-•/
✓
4
' Q
M
✓
Silver
✓
4
Q
M
✓Selenium
✓
4
Q
M
4Zinc
d
V
4
QM
✓(`ep
✓
4
Q
M
✓-r&r,,\
,„s.
✓
4
Q M
✓
iser1\�.vvn
✓
4
\QJ M
4
Q M
4
Q M
4
Q M
'Always in the LTMP
"Only in the LTMP if the POTW land appres sludge
"' Only in LTMP while the SIU is connected to the POTW
"" Only in LTMP when the pollutant is a specific concem to the POTW (ex -Chlorides for a POTW who accepts Textile waste)
0= Quarterly
M=Monthly
Comments: Si0_y., .s \n.n'1reA 4\-.
`CY\e:rcv r 'Vy ry1\iu vY, c\ nri Ay- ao-A-w ri i�c_.\,,9 1 . TRe sk- o C
.;c
yr P C L- , ct`itk- Qy\--- ne 2t 's L pe r S1,c rmX-1\r\_10. r x 13t i 01� .
version 8/23/00
NPDES_Pretreatment, request.form.000823
Revised: August 4. 2000

CITY
OF GREENSBORO
Data
T. Z. Osborne Effluent
DATE i mg/I
mg/I
mg/I
mg/I
mg/I
Selenium*
Fluoride
Arsenic
Beryllium
Lead
Mercury
8/25/99
<.002
_ 0.98
<.002
<.0001
<.005
<.0005
9/1/99 <.002
1.05
<.002
<.0001
<.005
<.0002
9/8/99 0.002
0.73
<.002
<.0001
0.003
<.0002
9/15/99 0.002
0.95
<.002
<.0001
<.002
<.0002
9/22/99 <.002
1.25
<.002
<.0001
<.002
<.0002
'
9/29/99 <.002
1
<.002
<.0001
<.005
0.00024
12/8/99 <.002
1.2
<.005
<.0001
<.005
<.0005
12/15/99 <.002
1.1
<.002
<.0001
<.005
<.0005
12/22/99 <.002
0.99
<.002
<.0001
0.006
<.0005
12/29/99
<.002
1.08
<.002
<.001
<.005
<.0005
12/6/00
<.005.
1.14
<.005
0.00045
<.0002
12/13/00
<.005
1.17
<.005
0.00012
<.0002
12/20/00
<.005`
1.17
<.005
0.00017
<.0002
12/27/00
<.005
1.01
<.005
0.00021
<.0002
laboratory
by an outside
*Municipal
detection limit is <0.05, therefore, effluent analyses are
conducted
commerical laboratory to achieve lower detection limit of <0.002
North Buffalo Effluent Data
DATE
mg/I
mg/I
mg/I
mg/I
mg/I
Selenium
Arsenic
Beryllium
Lead
Mercury
G.002
8/25/99
<.002
<.0001
<.005
<.0005
9/1/99
<.002
0.74
<.002
<.0001
<.005
<.0002
9/8/99
<.002
<.002
<.0001
<.002
0.00067
9/15/99
0.902
<.002
<.0001
<.002
<.0002 '
9/22/99
<.002
<.002
<.0001
<.002
<.0002 -
9/29/99
<.002
<:002
<.0001
<.005
<.0002'
12/8/99
<.002
<.005
<.0001
<.005
<.0005
12/15/99
5.002
<.002
<.0001
<.005
<.0005
12/22/99
<.002
<.002
<.0001
<.005
<.0005
12/29/99
<.002'
<.002
<.0001
<.005
<.0005
12/6/00
<.005
<.005
0.00022
<.0002
12/13/00
<.005
<.005
0.00011
<.0002
12/20/00
<.005
<.005
0.00015
<.0002
12/27/00
<.005 j
<.005
0.00037
<.0002.
Aa
7

RE: NPDES Status
.
, Subject: RE: NPDES Status
Date: Mon, 9 Jul 2001 13:34:02 -0400
From: "Groome, Martie" <[e-mail]>
To: "'Tom Belnick"' <[e-mail]>
Tom, attached please find the effluent silver data from North Buffalo
[NC0024325] for calendar year 2000.
Original Message
From: Tom Belnick [mailto:[e-mail]]
Sent: Thursday, June 28, 2001 2:14 PM
To: [e-mail]
Subject: NPDES Status
Hi Martie- For N. Buffalo, I'm going to start our internal
draft permit, which generally takes 2-3 weeks, then I plan
by end of July. Please get me the silver data before then
incorporate the results into the draft permit.
For Osborne, I'm just starting the renewal, so I won't go
until sometime in August, which accounts for an internal r
also need the silver data for this one. Thanks.
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
review of the
to notice it
, so I can
to notice
eview. I'll
DState NB Silver Data 2000.xls
Name: State NB Silver Data 2000.xls
Type: Microsoft Excel Worksheet
(application/vnd.ms-excel)
Encoding: base64
Download Status: Not downloaded with message
1 of 1 7/9/01 1:42 PM

LONG TERM MONITORING PLAN GUIDANCE (HEADWORKS)
POTW: North Buffalo
PERMIT NO. NC0024325
SAMPLE LOC. 4
SAMPLE DATE
Silver Effluent Data
1/1/00
1/2/00
1/3/00
1/4/00
1/5/00
1/6/00
1/7/00
1/8/00
1/9/00
1/10/00
1/11/00
1/12/00
1/13/00
1/14/00
1/15/00
1/16/00
1/17/00
1/18/00
1/19/00
1/20/00
1/21/00
1/22/00
1/23/00
1/24/00
1/25/00
1/26/00
1/27/00
1/28/00
1/29/00
1/30/00
1/31/00
2/1/00
2/2/00
2/3/00
2/4/00
2/5/00
2/6/00
2/7/00
2/8/00
2/9/00
2/10/00
2/11/00
2/12/00
2/13/00
2/14/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

2/15/00
2/16/00
2/17/00
2/18/00
2/19/00
2/20/00
2/21 /00
2/22/00
2/23/00
2/24/00
2/25/00
2/26/00
2/27/00
2/28/00
2/29/00
3/1 /00
3/2/00
3/3/00
3/4/00
3/5/00
3/6/00
3/7/00
3/8/00
3/9/00
3/10/00
3/11/00
3/12/00
3/13/00
3/14/00
3/15/00
3/16/00
3/17/00
3/18/00
3/19/00
3/20/00
3/21/00
3/22/00
3/23/00
3/24/00
3/25/00
3/26/00
3/27/00
3/28/00
3/29/00
3/30/00
3/31/00
4/1/00
4/2/00
4/3/00
4/4/00
4/5/00
4/6/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

4/7/00
4/8/00
4/9/00
4/10/00
4/11/00
4/12/00
4/13/00
4/14/00
4/15/00
4/16/00
4/17/00
4/18/00
4/19/00
4/20/00
4/21/00
4/22/00
4/23/00
4/24/00
4/25/00
4/26/00
4/27/00
4/28/00
4/29/00
4/30/00
5/1/00
5/2/00
5/3/00
5/4/00
5/5/00
5/6/00
5/7/00
5/8/00
5/9/00
5/10/00
5/11/00
5/12/00
5/13/00
5/14/00
5/15/00
5/16/00
5/17/00
5/18/00
5/19/00
5/20/00
5/21/00
5/22/00
5/23/00
5/24/00
5/25/00
5/26/00
5/27/00
5/28/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

5/29/00
5/30/00
5/31/00
6/1/00
6/2/00
6/3/00
6/4/00
6/5/00
6/6/00
6/7/00
6/8/00
6/9/00
6/10/00
6/11/00
6/12/00
6/13/00
6/14/00
6/15/00
6/16/00
6/17/00
6/18/00
6/19/00
6/20/00
6/21/00
6/22/00
6/23/00
6/24/00
6/25/00
6/26/00
6/27/00
6/28/00
6/29/00
6/30/00
7/1/00
7/2/00
7/3/00
7/4/00
7/5/00
7/6/00
7/7/00
7/8/00
7/9/00
7/10/00
7/11/00
7/12/00
7/13/00
7/14/00
7/15/00
7/16/00
7/17/00
7/18/00
7/19/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

7/20/00
7/21/00
7/22/00
7/23/00
7/24/00
7/25/00
7/26/00
7/27/00
7/28/00
7/29/00
7/30/00
7/31/00
8/1/00
8/2/00
8/3/00
8/4/00
8/5/00
8/6/00
8/7/00
8/8/00
8/9/00
8/10/00
8/11/00
8/12/00
8/13/00
8/14/00
8/15/00
8/16/00
8/17/00
8/18/00
8/19/00
8/20/00
8/21/00
8/22/00
8/23/00
8/24/00
8/25/00
8/26/00
8/27/00
8/28/00
8/29/00
8/30/00
8/31/00
9/1/00
9/2/00
9/3/00
9/4/00
9/5/00
9/6/00
9/7/00
9/8/00
9/9/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

9/10/00
9/11/00
9/12/00
9/13/00
9/14/00
9/15/00
9/16/00
9/17/00
9/18/00
9/19/00
9/20/00
9/21/00
9/22/00
9/23/00
9/24/00
9/25/00
9/26/00
9/27/00
9/28/00
9/29/00
9/30/00
10/1/00
10/2/00
10/3/00
10/4/00
10/5/00
10/6/00
10/7/00
10/8/00
10/9/00
10/10/00
10/11/00
10/12/00
10/13/00
10/14/00
10/15/00
10/16/00
10/17/00
10/18/00
10/19/00
10/20/00
10/21/00
10/22/00
10/23/00
10/24/00
10/25/00
10/26/00
10/27/00
10/28/00
10/29/00
10/30/00
10/31/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

11/1/00
11/2/00
11/3/00
11/4/00
11/5/00
11/6/00
11/7/00
11/8/00
11/9/00
11/10/00
11/11/00
11/12/00
11/13/00
11/14/00
11/15/00
11/16/00
11/17/00
11/18/00
11/19/00
11/20/00
11/21/00
11/22/00
11/23/00
11/24/00
11/25/00
11/26/00
11/27/00
11/28/00
11/29/00
11/30/00
12/1/00
12/2/00
12/3/00
12/4/00
12/5/00
12/6/00
12/7/00
12/8/00
12/9/00
12/10/00
12/11/00
12/12/00
12/13/00
12/14/00
12/15/00
12/16/00
12/17/00
12/18/00
12/19/00
12/20/00
12/21/00
12/22/00
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01
< 0.01

Figure 5. Upper Cape Fear
River Basin.. Association
Monitoring Sites
�tV
Legend
• Upper Cape Fear Monitoring Sites
NCDWQ Benthic Monitoring Sites
NCDWQ Ambient Monitoring Sites
County Boundaries:
Major Highways
Municipal Boundaries
Surface Waters
(USGS 1:100,000 scale data)
0
5 Miles •
This map may be viewed in color at
http://www.cfra-nc.org/projact.htm
By Triangle J Council of Governments
June, 2000

CA) - //oU.w/ ul) rjaksx
&Ide'llab C/1% S j Jim), TO tJ-r
- kid/ ailudt c-ct -
Nit) ___
OCFR4Ad\-fAt ceii-k64,44
i,;tiva d�� a-,G,�-� %�-f drultiAvl 40n
"144 Ke-t.) iv& giA4-44-4,14 eAw-:e64-e
44, triL "IIA:10e4 0/ .
'IP col-fel-e9 -TAi ham- w/ AM) ilevici
qty-4( (IT ri_eew_eft°).
7;1J Loilre:
fritivqK itINb
� ,Ud, ,nti;l,,%i, iu,t, '' dam

4. Instream Dissolved Oxygen
• 1999 data shows DO sag at D2
• UCFRBA began instream monitoring in April 2000; now monitors 2
Instream stations.
j. o ,
• current limits: cyanide W
— i'4)
• draft limits: cyanide, chromium, nickel, mercury, beryllium
▪ need silver data
ovi
i1\
riP
reensboro Site Visit
h Buffalo Creek WWTP/NC024325
Date: June 12, 2001
Tom Belnick, NPDES Unit, (919) 733-50:3 ext 543
Adugna Kebede, Modeling/TMDL Un' , !) 733-5083 ext 515
NPDES Permit Discussion Topics
Facility status
• currently at of per itted flow/future plans
• last upgrad 1998 a` 1
• Cone Mills connecting to TZ Osborne when?.
6 MGD flow transfer to TZ Osborne peak flows
ro 1•\e
2. Nutrients/HB515
• existing TP limit of 2 mg/I
• TN limit pending model results- due when?
3. Ammonia
• current limit of 4 mg/I summer, 8 mg/I winter
• North Buffalo Creek is 303(d) listed in Part 1 for ammonia- a TMDL is
required.
• more stringent limit would be applied at expansion or based on TMDL
k � C
5. Metals
rTZ Osborne Facility �►if
• Engineers Certificate for 30 MGD; new limits will kick in infi `'( jt, ibitt 61) b2 2 00)

DMR Data Review- 1999 INSTREAM DATA- DO
Facility: Greensboro N. Buffalo
NC00 24325
Preparer: Tom Belnick
Date: 6/8/01
Times that DO< 5 mgll
Monthly Avo Values
Monthly Avg Values
Month
Up D1 D2 D3
DO<5 mg/I DO<5mg/I DO<5 mg/I DO<5mgll
n= n= 1 n= n=
Up D1 D2 D3
Fecal Fecal Fecal Fecal
#/100m1 #/100m1 #/100m1 #/100m1
Up D1 D2 D3
Cond Cond Cond Cond
umhos umhos umhos umhos
Apr-99
May-99
Jun-99
Jul-99
Aug-99
Sep-99
Oct-99
0
0 0
i_q 8O1
[BO!,' cIS
r(-161 6Zo__6Z3
LIL
5_b.S1 .
917
iS2
3c 9.
6Z$
891
Y33 376
S y 7 �9
(-my L1 /
Yc) 2 3S2
564
e.5
70-o
Y I 0
Y97
0
0 0
I
_O
15.5
923
SYS
867
to
0 2-1
,
f6�0 310
3$!
7
0
7
yqt,
13
910
I50
ysI YSa
1
0
I
0
q39
7I
is31
%52_
65s
lf13 35 /A'Pit
0
0
0
0
1469
aZS
2 32
Z lC
693
Y7, 352_
Y27
T
O0 sa 0 D2
S-}i 11 rri (>? i hwPl 1) C0411 +� n
IvJc = 96. s7Q►0
9o. s %C, 7 cx l D

DMR Data Review- EFFLUENT --001
Facility: Greensboro- N Buffalo
NC00 24325
Preparer:
Date:
Tom Belnick
6/8/01
(3t1
B SiS
Month
Eff
AvgQ
MGD
Eff Eff Eff Eff Eff Eff
Max TRC AvgCBOD AvgNH3-N AvgTSS AvgFecal MinDO
ug/I mg/I mg/I mg/I #/100m1 mg/I
Eff
TN
mg/I
Eff
TP
mg/I
Jan-00
Feb-00
Mar-00
Apr-00
May-00
Jun-00
Jul-00
Aug-00
Sep-00
Oct-00
Nov-00
Dec-00
11.7
14
13.5
12.5
11.4
12
10.9
11.8
14.2
11.7
11.1
10.4
500
380
850
520
750
690
490
440
550
1000
1000
980
1.9 1.08
4.6 2.5
3.4 5.8
1 0.99
1.5 0.53
4.2 0.67
1.7 0.32
3.9 1.8
4.8 0.98
1.6 0.58
2.6 _ 3.2
2.7 4.8
3
6
6
3
3
8
6
9
9
5
10
6
2
1
1
1
3
18
8
46
3
3
1
7.9
7.3
6.2
7.4
6.9
6.8
6.4
6.4
6.3
6.7
8
8.1
8.8 1.4
8.1 1.7
10.3 2
11.8 1.7
8.4 1.3
1.5
15.9 2.5
12.2 2
10.2 0.9
9.8 1.3
8.2 1.6
12.7 1.4
CurrentLimits: S _ 16 _ NL
CurrentLimits: W 16 NL
16
30
200
>6
NL
30
200
>6
NL
2
x= 12.1
(76%06 0)
- No i► sfeavn va140 04 Mk)
-AK sad i44, 143 iii-receivr ivthIi%,

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
March 211, 2001) e
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Global Nuclear Fuel-Amerlcas, LLC Perm 24hrprfac lim: 90%
NC0001228/001 Bcgin:9/1/1996 Frequency: Q P/F + Jan Apr Jul Oct
County: New Hanover Region: WIRO Subbasin: CPF17
PF: 1.8 Special
7Q 10: 27.0 IWC(%):9.37 / Order:
Y 1997 Pass
NonComp:Singlc 1998 Pass
1999 Pass
2000 Lale
2001 Pass
Pass
Pass - - Pass - - Pass
Pass - - Pass - - Pass
Pass - - Pass - - Pass
Pass - - Pass - Pass
GNC Energy Corp/ 001 Perm 24hr LC50 ac monit cpis fthd (Gmb) 1997 -
NC0074241/001 Begin:6/1/1996 Frequency: A NonComp: 1998 -
County. Guilford - - Region: WSRO Subbasin: CPF08 1999 --
PF: VAR Special 2000 -.
7Q10: 0.0 IWC(v):I00 Order: 2001 --
>100
>100 - - -
>100 - >100 -
_ - - >100
>100
>100
Golden Poultry Pcnn chr lint: 9.0% 1997 Pass -- - Pass - - Pass - - Pass
NC0072575/001 Bcgm:6/1/1996 Frequency: Q P/F + Jan Apr Jul Oct NonComp: Single 1998 Pass - - Pass - - Pass - Pass
County: Lcc Region: RRO Subbasin: CPFI I 1999 Pass - Pass Pass - Pass
PFt 1.11 Special 2000 Pass - Pass - Pass -- Pass
7Q10: 17.0 IWC(%).91 Order. 2001 Pass
Goldsboro WWTP Perm chr Itm: 5.8%:if pf 14.2 chr lira 7.5•..;if pf 17.ft chr lim 9.1 1997 Pass - Pass Pass Pass
NCO023949,001 Begin: 11!U2111111 Frequency: Q pan Apr Jul Oct - NonComp:Singlc 1998 Pass - Pass -- -- Pass Pass
County: Wayne Region: WAR() Subbasin: NEU05 1999 Pass -- Pass ••- -- Pass Pass
PF 111.8 Sotstel 2000 Pass -- Pass Pass - •- Pass
70111: 271. 1 IWC1%):5.8 Order: 2001 Pass
Goldsboro WWTP Pcrm chr lim: 2.2%
NCO023949/002 Begin:11/172000 Frequency: Q Jan Apr Jul Oct
County: Wayne Region: WARO Subbasin: NEU05
PF: 4.0 Special
7Q10: 271.1 IWC(% )2.2 Order:
+ NonComp:Singlc
1997 -
1998 --
1999 -
2000 -
2001 H
Graham WWTP Penn chr lim: 149'. 1997 -- - Pass - Pass - - Pass - Pass
NC0021211/001 Bcgin:3/1/1996 Frequency: Q P/F + Mar Jun Scp Dec NonCamp:Single 1998 - - Pass Pass - - Pass - - Pass
County: Alamancc Region: WSRO Subbasin: CPF02 1999 - - Pass -- - Fail Pass - Pass - - Pass
PE: 3.5 special 2000 - - Pass - - Fad >56 >56 Pass - - Pass
7Q10: 34 IWC(%):I4 Order: 2001 -
Granite Falls WWTP Penn chr lim: 13%
NC0021890/0111 Begin:7/1/1995 Frequency: Q P/F + Mar Jun Scp Dec
County: Caldwell Region: ARO Subbasin: CTB32
PF: 0.90 Spacial
7Q10: 9.3 IWC(%):13 Order:
Greensboro N Buffalo Cr WWTP
Nrnn,AYft/nnl Rcnin•el now, F
NunComp: Single
1997 •- - Pass - - Pass -- - Pass -•• Pass
1998 - - Pass - - Pass - - Pass --- Pass
1999 - - Pass -- - Pass - Pass -- Pass
2000 - - Pass - - Pass - - Pass --- Pass
2001 -
Perm chr lint: 90%
rcquency: Q P/F + Jan Apr Jul Oct
County. Guilford Region: WSRO Subbasin: CPF02
PF: 16.0 Special
7Q10: 0.90 IWC(%):96.5 Order:
1997 P:
NonComp:Singlc 1998
1999 Pass
2000 sl00
2001 94.9
- C Fall ' Pass Pass • - Pass
Pass Pass - - Pass -- Pass
- Pass - - Pass - >100
>100 • - - >100 • - -- >100
Greensboro Osborne WWTP Penn chr lim: 90%
NC0047384/001 Begin: 1/1/1996 Frequency: Q P/F + Jan Apr Jul Oct
County: Guilford Region: WSRO Subbasin: CPF02
PF: 22.11 Special
7Q 111: 2.1 I WC(%)93.7 Order:
Y 1997 Fail
NonComp:Singlc 1998 Pass
1999 Pass
2090 >100
2001 94 9
Fail Pass Pass - - Pass Pass
-- - Fall Pass - Pass - - Pass
..- - Pass - - Fail.>700 - -- >100
-- - >100 - - >100 - 94.9
Greenville WWTP Perm chr lim: 20% (New perm 1/12001) Y 1997 -- --- PaSS(s) - -- Pass(s) -- - Pass(s) - •- Pass(s)
NCO023931/001 Bcgin:4/6/1995 Frequency: Q P/F + Mar Jun Sep Dec NnnComp:Singlc 1998 --- •- Poss(s) Pass(s) -- Pass(s) - Pass(s) -- - Pass(s)
County: Pitt Region: WARO Subbasin: TAROS 1999 --- Pass(s) - -- Pass(s) -- Late Pass(s) -- Pass(s)
PF- 17.5 Srss of 2000 -- -- Fail 69.3 >80 >80 - >B0 -- -- >80
7Q10: 109 IWCI".J:20 order: 2001 --
Grover Industries, Inc. Perm chr lim: 6% 1997 -- Pass - - Pass - -- Pass --- Pass
NC800439)R01I Begin! 11999 Frequency: Q P/F - Feb May Aug Nov ' NonComp:Single 1998 --- Pass - - Pass - Pass -- -- Pass
County Polk Region: ARO Subbasin: BRD06 1999 --- Pass Pass - Pass -- Pass
PF: 0,45 Spxsia I 2000 .- Pass - Pass -- Pass --- Pass
7Q11): 111,0 IWC1%):6.117 (Jnkr: 2001 --
Y Pre 1997 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Loner -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 7010 = Receiving stream low flow criterion (cfs) + = quanerly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan. Apr. Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IWC% = Instrcam waste concentration P/F = Pass/Fail tat 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 Issucd(To construct); H - Active but not discharging; t-More data available for month in question; • = ORC signature needed
23

5.,,1 pt: /-?ro Al idA/'
NPDES Permit No.
Abbr. No.
Permiltee
Contact
Salutation
Address
City
State
ZIP
Facility Name
Address
City
State
ZIP
Location 1
Location 2
County
Receiving Stream
Classification
River Basin
Subbasln No.
WWTP Status
Design 0
Regional 0111ee
Letter cc 01
Letter cc e2
Permit Writer
ExL
Signature Block 1
Signature Block 2
Signature Block 3
NC0024325
City of Greensboro
Allan Williams. Director of Water Resources
Mr. Williams
P.O. Box 3136
Greensboro
North Carolina
27402-3136
North Buffalo WWTP
2199 White Street
Greensboro
North Carolina
27405
2199 White Street
Greensboro
Guilford
North Buffalo Creek
C NSW
Cape Fear
030602
Existing
16.0 MGD
Winston Salem
Tom Belnick
543
Tom Belnick
NPDES Unit.
Permit Type Renewal
Discharge Status Existing
SIC #1 4952
SIC s2
SIC a3
WW Code#1 01
WW Code a2 02
WW Code a3
WW Code a4
WW Code a5
Basin Code
Major 03
Minor 06
Subminor 02
Latitude
D 3G
M DG
S 34
Longitude
D 79
M 44
S 53
Type Ownership MU
Facility Type Major
Main Tmt Unit Code 016x6
USGS °uad Map No. C20SW
Quad Map Name Guilford. NC
Stream Index No.
Facility Class 4
Public Notice Date: 7/4/01
Issue Date: 8/20/01
303(d) listed (Y/N)
305(b) listed (Y/N)
Use Support (S, ST, PS, NS)
Drainage Area (sq. mi.):
s7010 (cis):
W7010 (cis):
3002 (cfs):
°Avg (Ms):
IWC (%):
USGS Sta. No.
YES
NA
22.00
0.9
2.6
3.2
25.00
0.96

6w,4tki0 Al
Parameter= Selenium
Standard = 5 pg/I
Dataset= LTMP99/00
ModifiedData Nondetects RESULTS
1 <2 Std Dev. 0.707
1 < Mean 1.500
C.V. 0.471
Sample# 14.000
1<
2
1<
1<
1<
1<
1<
1<
2.5 <5
2.5 <
2.5 <
2.5 <
Mult Factor =
Max. Value
, Max. Pred Cw
Allowable Cw
2.200
2.500 pg/I
5.500 pg/I
5.181 pg/I

12/23/00
12/24/00
12/25/00
12/26/00
12/27/00
12/28/00
12/29/00
12/30/00
12/31/00
0.01

UCPF Statons
http://www.esb.enr.state.nc.us/Coalitions/ucfrba.ht:
jps
Upper Cape Fear River Basin Association
L
'Facility
City of Asheboro WWTP
Burlington East WWTP
Burlington South WWTP
South Durham WRF
j County Region
'Randolph
LAlamance I WSRO
Alamance IWSRO I
'Durham I RRO
Durham County Triangle WWTP
Glen Raven Mills
Durham
Alamance
RRO
IWSRO
Gold Kist, Inc.
Lee
FRO
Graham WWTP
Alamance
WSRO
Greensboro N. Buffalo WWTP
Guilford
WSRO
Greensboro T.Z. Osborne WWTP
Guilford
WSRO
igh Point -East Side WWTP
Honeywell
Mebane WWTP
Neste Resins Corporation
Guilford
Chatham
Alamance
Chatham
(Orange Water and Sewer Authority -Mason Farm WWTP
Orange
L SRO
RRO
WSRO
I[Ro I
I[RRO
Pittsboro WWTP
Chatham i
RRO
Ramseur WWTP
Randolph
(WSRO J
Randleman WWTP
Randolph
WSRO
Reidsville WWTP
Rockingham
WSRO i
Sanford WWTP
'Lee I
FRO
Siler City WWTP
Chatham
O_
Star WWTP
Montgomery
IIFRO I
Monitoring Locations
(Map stations your interested in by linking to the US Census TIGER MAP Service -
Enter lat/long with longitude as a negative number)
STORET#
B0070010
B0050000
B01700001
B0400000
11304800501
IB0540050J
B0690000
B0750000
Station Location
Troublesome Cr @ US 29 bus
Haw R @ US 29 bus (0209331280)
Haw R @ SR 2620 (High Rock Rd.)
Reedy Fork CO SR 2719
County J
Rockingham
Rockingham
Rockingham
Guilford
iRegio j
WSRO
WSRO
'SRO
WSRO
N Buffalo Creek @ N Buffalo Ck at influent conduit pier
N Buffalo Cr CO Huffine Mill Road
S Buffalo Cr @ Old US Hwy 70 (McConnell Rd.)
S Buffalo Cr
SR 2821(Harvest Rd.) (02095091)
Guilford
Guilford
Guilford
Guilford
L titude
136163611 7939001
36155511 793853
I 793353
793015
Longitude
361504
361042
WSRO I 3606341 794463i
WSRO 360747 7939471
WSRO 060522 L 794110
WSRO
360645
794020
1 of 3 12/5/00 12:21 pN.

UCPF Statons
•
http:l/www.esb.enr.state.nc.uslCoalitions/ucfrba.ht
160870000 IHaw River @ SR 1530 (Gerringer Mill Rd.) LMoadams Creek @ unimproved road upstream of
gdor Rd.)
11Alamance _ AVSRO II 36080111 792802i
B1350000 discharge (Corri
•�
LMoadams Creek @ SR1940 (Gibson Rd.)
1B1440000 LHaw River @ SR 2158 (Swepsonville Rd.)
B1380000
B1200000
Alamance
Alamance
Alamance
Haw River @ Hwy 54
1B19400001 Big Alamance Cr @ Hwy 87
Big Alamance Cr @ SR 2116 (Preacher Holmes
B1960000 Rd.)(02096813)
B2000000'
B2210000
Haw R @ SR 1005 (Saxapahaw Rd.)(02096879)
Haw R @ US 64
Alamance
Alamance
1.)^t.lamance
Alamance
Chatham l
WSROI
WSRO
WSROJ
WSRO
wsROi
WSRO
WSRO
RRO
3605181 7917051
360518 L 7918301
7922051
792202i
360133
360253
360126 L 7923401
f
360103IL 7922571
355342
354353
791530
790625
B2450000
Robeson Creek @ SR 1943 (Gum Springs Ch. Rd)
(02097189)
Chatham
RRO
354210
790613
�B3020000
B3040000
B3300000
B3670000
B3025000
New Hope Cr below waterfowl impoundment dam -need to
get access from WWTP
New Hope Cr @ SR 1107 (02097314) (Stagecoach Road)
Northeast Cr @ SR 1102 (Sedwick Road)
Northeast Cr @ SR 1731 (0 Kelly Church Road)
Third Fork Creek @ Hwy 54
Durham
Durham
!Durham
Chatham
Durham
RRO
RRO
RRO
RRO
IRRO
3554188! 785813
355305
785758
355312
355121
355506
785400
785625
785718
Morgan Cr @ at bridge of WWTP entrance-upstrm. site in
B3899180
permit
Orange
RRO
355357
790134
B3900000
B4080000
E6050000l
B4380000
B4350000
B4440000
B4626000
B4870000
B4780000
B4800000
B4920000
B5070000
B5100000
B5520000
ssa100001
B5575000,
B5685000
B5820000
B5950000
B5980000
Morgan Cr @ SR 1726 (Farrington Rd.)(02097521)
Haw R @ SR 1011 (old US 1)
Deep R nr Moncure-RR trestle (02102049)
Richland Creek @ SR 1154
Deep R @ SR 1113
Deep R @ SR 1129
Muddy Cr @ Cedar Square Rd -SR 1929
Hasketts Creek 800 feet above the discharge at existing
upstream site
Deep River @ SR 2117, near Randleman
Deep R @ SR 2128, near Worthville (WOW Road)
Deep River @ SR 2261 near Central Falls (Old Liberty
Road)
Deep R @ SR 2615 (USGS gage) (0210050)
Chatham
Chatham •
Chatham
Guilford
Guilford
Guilford I
Randolph
Randolph
Randolph
Randolph
Randolph
i Randolph
Deep R @ SR 2628 (Hinshaw Town Road)
Deep R @ NC 22, High Falls (0210102530)
Cotton Cr @ SR 1370 (Leach Rd.) culvert
Deep R above Carbonton Dam @ Hwy 42
Deep R nr Cumnock sample@Deep River Park Bridge
Deep R @ US 15/501 (02101577)
Rocky R @ US 64
Rocky R @ SR 2170 (Reeves Chapel Road)
Randolph
Moore
Montgomery
Chatham
Chatham
e
Chatham
Chatham
RRO
RRO
RRO
WSRO
WSRO
WSRO
WSRO
WSRO
WSRO
WSRO
WSRO
WSRO
WSRO
FRO
IFRO J
[RRO
RRO
IFRO J
RRO
RRO
355138
353658
353655
355620
355732
355616
355229
354553
354548
354807
354547
354410
354340
352841
352314
1353110
353332
353442
354407
354157
790037
790326
790500
7954521
795424
795325
795240
794711
794746
794638
794622
L
794104
793910
793115
794415
792157
791437
79,149]
L 792529
792235
2 of 3 12/5/00 12:21 PM

`UCFR6A.' 60070010 36.2766 79.6502
UCFRBA B0050000 36.2652 79.6526
UCFRBA B0170000 36.2511 79.5647
UCFRBA 60400000
uP _ UCFRBA 60480050
O,:►JCFRBA B0540050
UCFRBA B0690000
UCFRBA B0750000
UCFRBA B0870000
UCFRBA B1350000
UCFRBA B1380000
UCFRBA B1440000
UCFRBA B1200000
UCFRBA B1940000
-UCFRBA B1960000
UCFRBA B2000000
UCFRBA 82210000
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
UCFRBA
Troublesome Cr © US 29 bus
Haw R @ US 29 bus (0209331280)
Haw R @ SR 2620 (High Rock Rd.)
36.1776 79.6180 Reedy Fork © SR 2719
36.1093 79.7483 N Buffalo Creek ® N Buffalo Ck at influE
36.1296 79.6630 N Buffalo Cr © Huffine Mill Road
36.0894 79.6883 S Buffalo Cr @ Old US Hwy 70 (McConr
36.1126 79.6721 S Buffalo Cr © SR 2821(Harvest Rd.) (C
36.1336 79.4662 Haw River @ SR 1530 (Gerringer Mill F
36.0883 79.2848 Moadams Creek © unimproved road up
36.0891 79.3078 Moadams Creek © SR1940 (Gibson Rd
36.0259 79.3682 Haw River © SR 2158 (Swepsonville R
36.048 79.3670 Haw River © Hwy 54
36.024 79.3948 Big Alamance Cr © Hwy 87
36.0176 79.3674 Big Alamance Cr © SR 2116 (Preacher
35.8952 79.2584 Haw R © SR 1005 (Saxapahaw Rd.)(02
35.7313 79.1068. Haw R @ US 64
B2450000 35.7029 79.1037 Robeson Creek © SR 1943 (Gum Sprin
B3020000 35.9051 78.9704 New Hope Cr below waterfowl impoundr
B3040000 35.8849 78.9663 New Hope Cr ® SR 1107 (02097314) (:
B3300000 35.8865 78.8999 Northeast Cr ® SR 1102 (Sedwick Roar
B3670000 35.8558 78.9402 Northeast Cr @ SR 1731 (0 Kelly Churc
B3025000 35.9184 78.9550 Third Fork Creek © Hwy 54
B3899180 35.8988 79.0260 Morgan Cr @ at bridge of WWTP entran
B3900000 _ 35.861 79.0102 Morgan Cr @ SR 1726 (Farrington Rd.)(
B4080000 - 35.6162 79.0573 Haw R @ SR 1011 (old US 1)
B6050000 35.6153 79.0831 Deep R nr Moncure-RR trestle (021020/
B4380000 35.941 79.9322 Richland Creek @ SR 1154
B4350000 35.9589 79.9065 Deep R @ SR 1113
B4440000 35.9377 79.8905 Deep R ® SR 1129 •
B4626000 35.8734 79.8801 Muddy Cr © Cedar Square Rd -SR 1929
B4870000 35.7649 79.7864 Hasketts.Creek 800 feet above the disci
B4780000 35.8192 79.7950 Deep River © SR 2117, near Randlema
B4800000 35.8019 79.7774 Deep R © SR 2128, near Worthville (WI
B4920000 35.7632 79.7724 Deep River @ SR 2261 near Central Fal
B5070000 35.7301 79.6561 Deep R @ SR 2615 (USGS gage) (021C
B5100000 35.6723 79.6276 Deep R © SR 2628 (Hinshaw Town Roi
B5520000 35.4776 79.5201 Deep R @ NC 22, High Falls (02101025
B5410000 35.387 79.7374 Cotton Cr © SR 1370 (Leach Rd.) culve
B5575000 35.5197 79.3487 Deep R above Carbonton Dam it Hwy
B5685000 35.5588 79.2435 Deep R nr Cumnock sample@Deep Riv.
B5820000 35.5781 79.1945 Deep R ® US 15/501 (02101577)
B5950000 35.7349 79.4234 Rocky R © US 64
B5980000 35.6986 79.3762 • Rocky R @ SR 2170 (Reeves Chapel R,
Rockingha WSRO 030601 N
Rockingha WSRO 030601 Y
Rockingha WSRO 030601 N
Guilford WSRO 030602 N
Guilford WSRO 030602 N
Guilford WSRO 030602 N
Guilford WSRO 030602 N
Guilford WSRO 030602 Y
Alamance WSRO 030602 N
Alamance WSRO 030602 N
Alamance WSRO 030602 N
Alarance WSRO 030602 N
Alamance WSRO 030602 N
Alamance WSRO 030603 N
Alamance WSRO 030603 Y
Alamance WSRO 030604 Y
Chatham RRO 030604 N
Chatham RRO 030604 N
Durham RRO 030605 N
Durham RRO 030605 Y
Durham RRO 030605 N
Chatham RRO 030605 N
Durham RRO 030605 N
Orange RRO 030606 N
Chatham RRO 030606 Y
Chatham RRO 030607 N
Chatham RRO 030607 Y
Guilford WSRO 030608 N
Guilford WSRO 030608 N
Guilford WSRO 030608 N
Randolph WSRO 030608 N
Randolph WSRO 030609 N
Randolph WSRO 030609 N
Randolph WSRO 030609 N
Randolph WSRO 030609 N
Randolph WSRO 030609 Y
Randolph WSRO 030609 N
Moore FRO 030610 Y
MontgomE FRO 030610 N
Chatham RRO 030610 Y
Chatham RRO 030611 N
Lee RRO 030611 Y
Chatham RRO 030612 -N
Chatham RRO 030612 N
C NSW
C NSW
C NSW �I (�I 7 1013
C NSW �; L�
C NSW 5• 59
C NSW 5. i Z- 5.52.
C NSW e
C NSW t-o�
C NSW (03) (i/Z")
C NSW
C NSW
C NSW
C NSW
C NSW
C NSW
C NSW
WS-IV&B NSW C
WS-IV NSW
WS-IV NSW
WS-IV NSW
WS-IV NSW
WS-IV NSW
WS-IV NSW
WS-IV NSW CA
WS-IV
WS-IV
C
C
C
C
C
C
C
C
C
C
C HCIW
WS-III
WS-IV HOW
WS-IV CA
WS-IV
C
7.V
13 OS Yb '

IWC Calculations
Greensboro- N. Buffalo Creek
N C0024325
Prepared By: Tom Belnick, NPDES Unit
Enter Design Flow (MGD):
Enter s7Q10(cfs):
Enter w7Q10 (cfs):
16
0.9
2.6
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
(If DF >331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF)
NPDES Servor/Current Versions/IWC
Ammonia (NH3 as N)
(summer)
0.9 7Q10 (CFS)
16 DESIGN FLOW (MGD)
24.8 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL
96.50 IWC (%)
18 Allowable Conc. (mg/I)
Ammonia (NH3 as N)
(winter)
7010 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
1.04 UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
0.9
16
24.8
1.0
0.22
9
2.6
16
24.8
1.8
0.22
90
4
4/5/01

Figure 1
Location Map
United Hoty Church
`, e rE
C N
ikitkil ._. i
.%.
1 1
Greensboro
0
Sc.a.• ;n tces
Guilford DOC
Greensboro
Osborne WVTP
Broo+view Rd.
Quarterstone Farm
US 70 A
cLeansville
ville school

Ambient DO data- Cape Fear River Basin
Subject: Ambient DO data- Cape Fear River Basin
Date: Fri, 29 Jun 2001 11:54:08 -0400
From: Tom Belnick <[e-mail]>
To: [e-mail]
Hi Susan- I'm working on the NPDES permit renewal for Greensboro, and
would like to look at the DO data for ambient station storet # B0540000
(North Buffalo Creek @ SR2832) for July, August, and Sept. of 2000. How
can I access this ambient data? Thanks.
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
1 of 1 6/29/01 11:54 AM

DO
Station
DATE
TIME
DEPTH m
mg/I(300)
B0540000
7/20/00
B0540000 8/23/00
9:30
9:45
B0540000 9/19/00
10:20
0.1
0.1
0.1
5.0
4.0
7.4

Selenium for North Buffalo and T. Z. Osborne
Subject: Selenium for North Buffalo and T. Z. Osborne
Date: Thu, 17 Oct 2002 07:21:58 -0400
From: "Miller, Sharon" <[e-mail]>
To: <[e-mail]>
CC: "Groome, Martie"<[e-mail]>
Mr. Belnick,
I reviewed all our DMRs for the past two year and on page 3, Effluent Addendum, is
listed all our data for Selenium. The only other data that is required under our
LTMP for T. Z. Osborne is influent monitoring for selenium which we do. If you need
that data I can make it available. We have also submitted the last 13 months of
influent and effluent selenium data to Tom Poe in our HWA submittal dated August 15,
2002.
There is no requirement in our LTMP plan for the City of Greensboro to monitor for
Selenium at North Buffalo so no monitoring has been performed for that pollutant.
If you need me to submit this data is another format, please let me know.
Sharon Miller
Pretreatment Coordinator
City of Greensboro
336-375-2240 ext. 227
fax [phone]
1 of 1 10/17/02 9:28 AM

Greensboro WWTPs- Pretreatment LTMP Data
Subject: Greensboro WWTPs- Pretreatment LTMP Data
Date: Mon, 13 May 2002 16:01:24 -0400
From: Tom Belnick <[e-mail]>
To: [e-mail]
btd 6,14 re cpv,e
Hi Martie- I double-checked the 1999/2000 LTMP data that I used to do
the reasonable potential analysis for both facilities for the draft
permit. The detections of mercury were back in September 1999, and the
detections of beryllium occurred back in December 2000. Thus, all these
samples will be outside the 6 month holding time and not worth
re -analyzing, even if the samples were still available.
I'd like to take a look at the data collected since then. Can you send
me the LTMP data for Hg/Be for 2001 and 2002 (if already collected).
Also, can you include the 2001/2002 data for selenium. In the 1999-2000
dataset, there were some detections of selenium reported at the lab
quantitation level, so I'd like to see if they were all non -detects
since then. Thanks.
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
1 of 1 5/13/02 4:01 PM

fit' ti >v M 4c4/1 inn)
ATER
sources
City of Greensboro
Administration
[phone]
Customer Service
[phone]
Water Supply
Mitchell Plant
[phone]
Townsend Plant
[phone]
Water Reclamation
North Buffalo Plant
[phone]
T.Z. Osborne Plant
[phone]
Construction K
Maintenance
[phone]
Water Conservation
[phone]
July 27, 2000 Certified Mail # 7099 3220 0008 5057 6942
Return Receipt Requested
Mr. Charles H. Weaver, Jrr
NC DENR / Water Quality / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Renewal of NPDES Permit Number NC0024325
City of Greensboro North Buffalo -Guilford County
Dear Mr. Weaver,
The City of Greensboro hereby requests renewal of NPDES Permit Number
NC0024325 issued to the North Buffalo Water Reclamation Facility. Enclosed
please find 3 copies [1 original and 2 copies] of the required documents for
NPDES permit renewal.
The North Buffalo Water Reclamation Facility is currently under upgrade to
enhance the treatment capabilities of the plant. This upgrade will not affect the
current discharge capacity of 16 MGD. Projected completion date for this upgrade
is August 31, 2000.
If you require any additional information or have any questions, please feel free to
contact me at 336-373-2055 or by email at [e-mail].
Sincerely,
(.id
6641.
Allan Williams
Director of Water Resources
Enclosures: Permit Application Form [3 copies]
Process Drawing [3 copies]
Map [3 copies]
U S U
JUL - 1 2000
DEH - `'. \TEP. QUALITY
POINT ;'OE BR,V.;0H
cc: Arthur White, Water Reclamation Manager
Barbara Hall, North Buffalo Superintendent
Martie Groome, Laboratory and Industrial Waste Section Supervisor
1505
P. O. Box 3136, Greensboro, NC 27402-3136 • www.ci.greensboro.nc.us • Fax [phone] • TDD [phone]

North Buffalo WWTP City of Greensboro Permit # NC 0024325
Present Operating Status: Narrative description of installed wastewater treatment components at the facility. Include sizes
& capacities for each component.
• '/4 inch fine screens,
• Parshall Flume
• aerated grit removal system,
• 4 Primary Settling Tanks volume 246,000GAL,
• Flow Equalization Facility Total capacity 1.0 MG,
• Step Feed Capability,
• 6 MGD flow transfer pump station to TZ Osborne,
• 2 high rate Trickling Filters 200 Ft diameter 4 FT depth,
• 4 Aeration Activated Sludge Tanks with fine bubble diffusers 4.36 MG capacity,
• 3 - 75 FT diameter final settling tanks and 2 - 90 Ft diameter final settling tanks
• 4 Effluent Filters with a 28MGDcapacity,
• Parshall Flume
• 1 Aerated Chlorine Contact Chamber
Potential Facility Changes: Narrative description of planned upgrades / expansions / repairs planned for the facility during
the next five years
• The upgrades described below are intended to increase the efficiency of the operation of this facility during
high flow and cold weather . Flow equalization facility is being converted to a aeration activated sludge
system. The largest of the three tanks is to serve as the activated sludge tank the two smaller tanks will
serve as final settling tanks, the dike around the plant is being raise 4 ft. with a concrete retaining wall for
flood protecting.
Schematic of wastewater flow: A line drawing of water flow through the facility must be attached to this application. The
schematic should show flow volumes at all points in the treatment process. Specific treatment components should be
identified.

1
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North Buffalo WWTP City of Greensboro Permit # NC 0024325

IUP
Coun
1
2
3
4
5
6
1
8
9
10
11
12
13
SIU ALLOCATION TABLE
NORTH BUFFALO POTW
Headworke last approved: 04/16/98
Allocation Table updated: 07111100
Permits last modified: 05/01/98
INDUSTRY Industry
NAMES Permit/Pipe
i (please list alphabeticly) number
Type Original Date Date
of Effective Last Permit
Industry Date Modified Expires
FLOW
Permit Umlts
BOO
Permit Limits
TSS
Permit Limits
AMMONIA
Permit Limits
ARSENIC
Permit Limits
6 mo. Avg
MGD gal/day
Conc. Load
mgll Ibslday
Conc. Load
mgll Ibslday
Conc. Load
mgli Ibslday
Conc. Load
mgll Ibslday
Banknote Coporation
P056-01
433
05/01/98
05101/98
04/30/03
0.0030
3,000
200.00
5.00
200.00
5.00
20.00
0.50
Greensboro Industrial 01
P020-01
413
05/01/98
05/01/98
04/30/03
0.009999
9,999
200.00
16.68
200.00
16.68
20.00
1.67
Guilford Plating
P026-01
413
05/01/98
05/01/98
04/30/03
0.009999
9,999
200.00
16.68
200.00
16.68
20.00
1.67
Harvin Reaction
P046-01
414
05/01/98
05/01/98
04/30/03
0.0400
40,000
1000.00
333.60
400.00
133.44
20.00
6.67
Lorillard
P004-01
>25000
05/01/98
05/01/98
04/30/03
0.3360
336,000
750.00
2101.68
357.00
1000.40
10.00
28.02
Procter & Gamble-BS
P031-01
>25000
05/01/98
05/01/98
04/30/03
0.5000
-
500,000
500.00
2085.00
500.00
2085.00
10.00
41.70
Pugh Metal Finishing
P027-01
413
05/01/98
05/01/98
04/30/03
0.009999
9,999
200.00
' 16.68
200.00
16.68
20.00
1.67
Triad Anodizing
P029-01
413
05/01/98'
02/10/00
04/30/03
0.009999
9,999
200.00
16.68
200.00
16.68
20.00
1.67
Valspar
P050-01
415-BA
05/01/98
05/01/98
04/30/03
0.0015
1,500
200.00
2.50
200.00
2.50
20.00
0.25
Column Totals =>
0.9205
920,496
4594.50
3293.06
83.82
Basis for MAHL =>
MAHL from HWA (Ibslday) _>
Uncontrollable Loading (Ibslday) =>
Total Allowable for Industry (Ibslday) =>
Total Permitted to Industry (Ibslday) _>
Allowable loading left (Ibslday) =>
Percent Allow. Ind. still available (%) =>
Percent MAHL still available (%) =>
5 Percent MAHL (Ibslday) =>
Permit
Limit
Discharge permit limit for flow (mgd) =>
16
Non -Sill flow (mgd) 0> 14.5
Max. Allowable for Industry (mgd) _> 1.5
Total Permitted to Industry (mgd) => 0.920496
Total remaining SIU flow (mgd) »> 0.580
% Industrial flow still available (%) => 38,63
Total NPDES flow still available »> 3.62
5 Percent NPDES flow limit (mgd) L> 0.80
NPDES
Pennit
Limit
42361.90
25020.00
17341.90
4594.50
12747.40
73.5 %
30.1 %
2118.10
NPDES
Permit
Limit
85174.47
25020.00
60154.47
3293.06
56861.41
94.5 %
66.8 %
4258.72
NPDES
Permit
Limit
1565.00
2502.00
-937.00
83.82
-1020.82
108.9 %
-65.2 %
78.25
North Buffalo WWTP City of Greensboro Permit # NC 0024325

CADMIUM
Permit Limits
CHROMIUM
Permit Limits
COPPER
Permit Limits
CYANIDE
Permit Limits
LEAD
Permit Limits
MERCURY
Permit Limits
NICKEL
Permit Limits
SILVER
Permit Limits
ZINC
Permit Limits
Phosphorus
Permit Limits
Conc. Load
mgll Ibslday
Conc. Load
mgfl Ibslday
Conc. Load
mgll Ibslday
Conc. Load
mgli Ibslday
Conc. Load
mgfl Ibslday
Conc. Load
mgli Ibslday
Conc. Load
mgli Ibslday
Conc. Load
_ mgll Ibslday
Conc. Load
mgli Ibslday
Conc. Load
mgli Ibslday
0.11
0.003
2.77
0.069
3.38
0.085
0.050
0.001
0.69
0.017
'
r
3.98
0.100
0.430
0.011
2.61
0.065
5.98
0.1496
1.20
0.100
1.0000
0.0834
0.5500
0.0459
5.00
0.417
0.60
0.050
6.0000
0.5003
0.0100
0.0008
1.0000
0.083
5.98'
0.4987
1.20
0.100
0.5500
0.0459
0.5500
0.0459
'
0.050
0.004
0.60
0.050
1.2100
' 0.1009
0.0100
0.0008
1.0000
0.083
5.98
0.4987
0.003
0.001
0.0500
0.0167
0.0610
0.0203
. 0.050
0.017
0.69
0.230
0.0210
0.0070
0.0100
0.0033
2.61
0.871
5.98
1.9949
0.003
0.008
0.0500
0.1401
0.2000
0.5604
0.050
0.140
0.049
0.1373
0.0210
0.0588
0.0100
0.0280
0.3570
1.0004
5.98
16.7574
0.003
0.013
0.0500
0.2085
0.0610
0.2544
0.010
0.042
'
0.049
0.2043
0.0210
0.0876
0.0100
0.0417
0.5000
2.0850
11.50
47.9550
1.20
'0.100
1.0000
0.0834
0.5500
0.0459
5.00
0.417
0.60
0.050
0.5500
0.0459
0.0100
0.0008
36.4000
3.0355
5.98'
0.4987
1.20
0.100
2.0000
0.1668
0.5500
0.0459
0.200
0.017
0.60
0.050
_
0.5500
0.0459
0.0100
0.0008
30.0000
2.5017
5.98
0.4987
0.07
0.001
0.05
0.0006
3.00
0.0375
0.05
0.0006
0.049
0.0006
' 0.50
0.0063
1.00
0.013
' 0.50
0.0063
5.98
0.0748
0.425t
NC
Stream
Standard
3.0730
0.3753
2.6977
0.4258
2.2719
84.2 %
73.9 %
0.1537
0.8147J
NC
Stream
Standard
38.4127
6.2550
32.1577
-178T4T
31.3430
97.5 %
81.6 %
1.9206
1.14071
BPJ
POTW
20.7428
7.6311
13.1117
1.1407
11.9710
91.3 °%
57.7 %
1.0371_
1.05511
NPDES
Permit
Limit
4.3973
1.2510
3.1463
1.0551
2.0912
66.5 %
47.6 °%
0.2199
0.7898j
NC
Stream
Standard
8.864
3.1275
5.7370
0.7898
4.9472
86.2 %
55.8
0.4432
I 0.95221
NC
Stream
Standard
21.1416
2.6271
18.5145
0.9522
17.5623
94.9 %
83.1 %
_ 1.0571
0.09971 J 9.73161
Inhibition BPJ
POTW
33.3600
0.6255
32. /345
0.0997
32.6348
99.7 %
97.8 %
1.6680
72.4353
21.8925
50.5428
9.7316
40.8112
80.7%
56.3 %
3.6218:
68.926
NPDES
Permit
Limit
972.595
748.098
224.497
68.9265
155.57
69.3 %
16.0 °%
48.6297
North Buffalo WWTP City of Greensboro Permit # NC 0024325

Nbrth Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section ill for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Banknote Corporation of America. Inc.
Street address 6109 Corporate Park Drive
City Brown Summit County Guilford
State NC Zip Code 27214
Telephone Number ( 336 ) 375-1134
Fax Number ( 336 ) 375-1614
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A SECURITY PRINTING
OPERATION WITH A SMALL GRAVURE
CYLINDER PLATING OPERATION.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THIS FACILITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
METAL FINISHING [40 CFR PART 433].
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.003 MGD ©Intermittent 0 Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11l for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Greensboro Industrial Platers 01
Street address 725 Kenilworth Street
City Greensboro County Guilford
State NC Zip Code 27403
Telephone Number
Fax Number
e-mail address
( 336 ) 274-7654
( 336 ) 378-1950
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A JOB -SHOP
ELECTROPLATER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THIS FACLITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
ELECTROPLATING [40 CFR PART 413].
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.0099 MGD
® Intermittent ❑ Continuous

a
North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 1I1. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
° Submit a separate Section 111 for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Guilford Plating Companx
Street address 3318 Church Street Ext.
City Greensboro County Guilford
State NC Zip Code 27405
Telephone Number ( 336 ) 375-4565
Fax Number ( )
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A JOB SHOP
ELECTROPLATER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THIS FACILITY IS SUBJECT OT THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
ELECTROPLATING [40 CFR PART 413].
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.0099 MGD
® Intermittent ❑ Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11! for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Harvin Reaction Technology
Street address 3921 Spring Garden Street
City Greensboro County Guilford
State NC Zip Code 27407
Telephone Number ( 336 ) 292-0566
Fax Number ( 336 ) 294-0897
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS AN ORGANIC
CHEMICAL MANUFACTURER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THIS FACILITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
ORGANIC CHEMICALS, PLASTICS AND
SYNTHETIC FIBERS [40 CFR PART 4141
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.040MGD El Intermittent 0 Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11! for each Significant industrial User.
1. Significant industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative aiteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Lorillard Tobacco Co.
Street address 2525 East Market Street
City Greensboro County Guilford
State NC Zip Code 27420
Telephone Number ( 336 ) 335-6790
Fax Number ( 336 ) 373-6917
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A TOBACCO
PRODUCTS MANUFACTURER.
THE FACILITY IS NOT REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THE FACILITY IS A SIGNIFICANT
INDUSTRIAL USER DUE TO FLOW ONLY.
1>25,000 GPD PROCESS WASTEWATER]
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS.
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.336
MGD Intermittent ❑ Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11! for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU The Procter and Gamble Manufacturing Company
Street address 6200 Bryan Park Road
City Brown Summit County Guilford
State NC Zip Code 27214
Telephone Number ( 336 ) 954-4548
Fax Number ( 336 ) 954-4561
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A HEALTH AND
BEAUTY CARE PRODUCT
MANUFACTURER. [SIC CODE 2844]
THIS FACILITY IS NOT CURRENTLY
REGULATED BY A FEDERAL
CATEGORICAL PRETREATMENT
STANDARD.
THE FACILITY IS CURRENTLY A
SIGNIFICANT INDUSTRIAL USER DUE TO
FLOW ONLY. [>25,000 GPD PROCESS
WASTEWATER]
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.500 MGD Intermittent ❑ Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 11I. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant industrial User.
1. Significant industrial User (SIU) [NORTH BUFFALO POTWN
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Pugh Metal Finishing
Street address 802 West Lee Street
City Greensboro County Guilford
State NC Zip Code 27403
Telephone Number ( 336 ) 275-7417
Fax Number ( 336 ) 274-3765
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A JOB -SHOP
ELECTROPLATER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THIS FACILITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
ELECTROPLATING [40 CFR PART 4131
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.0099 MGD Intermittent Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Triad Anodizing and Plating Company. Inc.
Street address 3502 Spring Garden Street
City Greensboro
County Guilford
State NC Zip Code 27407
Telephone Number ( 336 ) 292-7028
Fax Number ( 336 ) 855-1896
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS A JOB -SHOP
ELECTROPLATER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THE FACILITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
ELECTROPLATING [40 CFR PART 413].
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.0099 MGD © intermittent 0 Continuous

North Buffalo WWTP City of Greensboro Permit # NC 0024325
SECTION 11I. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section Ill for each Significant Industrial User.
1. Significant Industrial User (SIU) [NORTH BUFFALO POTW]
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in combination
can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Valspar Corporation
Street address 3125 Spring Garden Street
City Greensboro County Guilford
State NC Zip Code 27407
Telephone Number ( 336 ) 299-0835
Fax Number ( 336 ) 292-3916
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
THIS FACILITY IS AN INORGANIC
CHEMICAL MANUFACTURER.
THIS FACILITY IS REGULATED BY A
FEDERAL CATEGORICAL
PRETREATMENT STANDARD.
THE FACILITY IS SUBJECT TO THE
FEDERAL CATEGORICAL
PRETREATMENT STANDARDS FOR
INORGANIC CHEMICAL
MANUFACTURING -SILVER NITRATE
SUBCATEGORIY [40 CFR PART 415-BA].
SEE ATTACHED ALLOCATION TABLE FOR
INDIVIDUAL SIU PERMITTED LOADINGS
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.0015 MGD X Intermittent ❑ Continuous