NC0020338_Permit Issuance_20091229

NPDES DOCUMENT SCANNING COVER SHEET
NC0020338
Yadkinville
WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative
Limits
Correspondence
Instream Assessment
(67B)
Environmental Assessment (EA)
Permit
History
Document Date:
December 29, 2009
This document i s printed on reuse paper - ignore nay
coateat oa the re-mzerse side

Beverly Eaves Perdue
Governor
AIM - •
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins Dee Freeman
Director Secretary
Mr. Thomas Gray, ORC
Town of Yadkinville
213 Van Buren Street
P.O. Drawer 816
Yadkinville, North Carolina 27055-0816
Dear Mr. Gray:
December 29, 2009
Subject: NPDES Permit Issuance
Permit No. NC0020338
Yadkinville WWTP
Yadkin County
In accordance with the application for discharge permit received, the Division is forwarding
herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North
Carolina General tatute 143-215.1 and the Memorandum of Agreement between North Carolina
and the U.S. En ' onmental Protection Agency dated October 15, 2007 (or as subsequently
amended).
The final permit authorizes the Town of Yadkinville to discharge municipal wastewater from
the Yadkinville Wastewater Treatment Plant to the North Deep Creek, a class WS-IV water in the
Yadkin/Pee Dee River Basin. The permit includes discharge limitations/or monitoring for flow,
BOD5, ammonia nitrogen, total suspended solids, dissolved oxygen, total residual chlorine, fecal
coliform, cyanide, mercury, phenols, copper and zinc.
Please note th t this discharge ultimately flows to High Rock Lake, which is listed as
impaired on the 03(d) list for chlorophyll -a due to excessive nutrient inputs. A Total
Maximum Daily Load (TMDL) is currently in progress, and nutrient limitations are a potential
future requirement. •
The following procedure has been implemented by DWQ: Total residual chlorine (TRC)
compliance level changed to 50 ug/1. Effective March 1, 2008, the Division received EPA approval
to allow a 50 ug/i TRC compliance level. This change is due to analytical difficulties with TRC
measurements. Facilities will still be required to report actual results on their monthly discharge
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
. Internet: www.ncwaterquality.org
M Equal Opportunity 1 Affirmative Action Employer
NOne CaC'011ri3
Naturally

monitoring report (DMR) submittals, but for compliance purposes, all TRC values below 50 ug/1 will
be treated as zero. A footnote regarding this change has been added to the effluent limitations page
in the draft permit.
Based on comments received during the draft permit review period, the following
modifications have been made in the final permit:
• The monthly average and daily maximum limits for total mercury have been
corrected to 24 ng/1. (Because of a typographical error, the limits were
previously given as 24 ug/1.) The limits were placed in the permit based on the
results of the reasonable potential analysis. The analysis indicated the potential
to exceed the water quality standard instream.
• The monitoring frequency for total mercury has been modified to twice per month and
should provide sufficient data for a reasonable potential analysis. If after twenty four
data points have been collected, the Town of Yadkinville may request in writing that
the Division reevaluate mercury data to determine whether the limit can be removed.
• The sample type for total mercury and total phenolic compounds has been corrected to
grab instead of composite.
• A weekly average limits for cyanide and total mercury have been changed to monthly
averages based on a procedural change in North Carolina's method for limits
assignment. The weekly average limit for total phenolic compounds has been
changed to a daily maximum limit.
The following modifications in the draft permit of August 26, 2009 remain in the final permit.
■ Quarterly monitoring for total arsenic, total cadmium, and total chromium has
been deleted from the permit based on the results of a reasonable potential
analysis that indicated there was no potential to exceed the instream water
quality standards or action levels: These parameters will continue to be
monitored in the pretreatment Long Term Monitoring plan.
• The daily maximum limits for fluoride and lead will be removed from the permit.
The results of the reasonable potential analysis indicated that the acute allowable
concentration would be not exceeded.
• Twice per month monitoring for silver will be deleted from the permit. The results
of the reasonable potential analysis indicated there was no potential to exceed the
water quality standard. This parameter will continue to be monitored in the
pretreatment Long Tenn Monitoring plan.
■ A monthly average and daily maximum limit of 4 ug/1 for total phenolic
compounds will be added to the permit based on the results of the reasonable
potential analysis. The analysis indicated the potential to exceed the water
quality standard instream.

• Please review the language in Condition A. (2). Chronic Toxicity Permit Limit.
There are some minor additions regarding information on DWQ forms to be
submitted and clarification on reporting pollutant data on the discharge
monitoring report and AT forms.
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. The Division may require modification
revocation and reissuance of the permit. This permit does not affect the legal requirements to
obtain other permits which may be required by the Division of Water Quality or permits required by
the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local
governmental permits may be required.
If you have any questions or need additional information, please contact Jacquelyn Nowell at
telephone number [phone].
Sincerely,
Coleen H. Sullins
Attachments
cc: EPA/Region IV (ecopy))
Winston-Salem Regional Office/Surface Water Protection Section (ecopy)
ESS/Aquatic Toxicology Unit (ecopy)
Technical Assistance and Certification Unit (ecopy)
ESS/Carrie Ruhlman (ecopy)
PERCS/Attn: Monti Hassan (ecopy)
NPDES File/NC0020338
Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

Permit No. NC0020338
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 pr mulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal W ter Pollution Control Act, as amended, the
is hereby auth
Town of Yadkinville
rized to discharge wastewater from a facility located at the
Yadkinville Wastewater Treatment Plant
Off NCSR 1703
East of Yadkinville
Yadkin County
to receiving waters designated as North Deep Creek in the Yadkin -Pee Dee River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and N hereof.
This permit shall become effective February 1, 2010.
This permit
nd authorization to discharge shall expire at midnight on December 31, 2013.
Signed this day December 29, 2009.
oleen H. Sullins, Director
ivision of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0020338
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As
of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the
exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements,
terms, and provisions included herein.
The Town of Yadkinville
is hereby authorized to:
1. Continue to operate an existing 2.5 MGD wastewater treatment system consisting of
a mechanical bar screen, dual grit removal facilities, an influent pump station,
equalization basin, flow splitter box, aeration basins, an oxidation ditch, secondary
clarification, chlorine contact chamber utilizing gas chlorination, gas dechlorination,
aerobic sludge digestion, sludge drying beds, and standby power located at the
Yadkinville Wastewater Treatment Plant, off of NCSR 1703, East of Yadkinville,
Yadkin County; and
2. Discharge from said treatment works at the location specified on the attached map
into North Deep Creek which is classified WS-N waters in the Yadkin -Pee Dee
River Basin.

Latitude:
Longitude:
Ouad #:
Stream Class:
Receiving Stream:
Permitted Flow:.
36°08'O1"
80°37'32"
C16NW
WS-IV
North Deep Creek
2.5 MGD
Town of Yadkinville
NC0020338
Yadkinville Wastewater Treatment Plant

Permit No. NC0020338
•
A. (1) EFFLL ENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized
to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Locations
Flow
2.5 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C
(April 1 — October 31)2
16.0 mg/L
24.0 mg/L
3/week
Composite
-
Influent & Effluent
BOD, 5-day, 20°C
(November 1— March
31)2
30.0 mg/L
45.0 mg/L
3/week
Composite
Influent & Effluent
Total Suspended Soli4s2
30.0 mg/L
45.0 mg/L
3/week
Composite
Influent & Effluent
NH3-N
(April 1— October 31
2.0 mg/L
6.0 mg/L
3/week
Composite
Effluent
NH3-N
(November 1— Marc
31)
4.0 mg/L
12.0 mg/L
3/week
Composite
Effluent
Dissolved Oxygen3
3/week
Grab
Effluent, U, D
pH+
3/week
Grab
_
Effluent
Total Residual Chlorines
28 p.g/L
3/week
Grab
Effluent _
Temperature °C
Daily
Grab
Effluent
Temperature °C
3/week
Grab
U, D
Fecal Coliform
200/100 ml
400/100 ml
3/week
Grab
Effluent, U, D
Oil and Grease
Quarterly
Grab
Effluent
Conductivity
3/week
Grab
Effluent, U, D
Total Nitrogen
(NO2+NO3+TKN)
Weekly
Composite
Effluent
Total Phosphorus
Weekly
Composite
Effluent -
Total Copper
2/Month
Composite
Effluent
Cyanide6
10 p.g/L
22 µg/L
Weekly
Grab
Effluent
Total Mercury
24 ng/L
24 ng/L
2/Month
Grab
Effluent
Total Phenolic Compjjunds
4 ug/L
4 ug/L
Weekly
Grab
Effluent
Total Zinc I
2/Month
Composite
Effluent
Chronic Toxicity?
Quarterly
Composite
Effluent
NOTES:
1. U: upstream at the Old U.S. 421 crossing. D: downstream at the NCSR 1510 crossing and at the NCSR 1146
crossing; Upstream and downstream samples shall be grab samples collected 3/Week during the months of June,
July, August, and September and Weekly during the remaining months of the year.
2. The monthly aiverage effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of their
respective influnt value (85% removal).
3. The daily average dissolved oxygen concentration in the effluent shall not be less than 5.0 mg/L.
4. The pH shall not be less than 6.0 standard units or greater than 9.0 standard units.
5. The Division shall consider all effluent total residual chlorine values reported below 50 µg/1 to be in compliance
with the permit. However, the Permittee shall continue to record and submit all values reported by a North
Carolina certified laboratory (including field certified), even if these values fall below 50 µg/1.
6. The quantitation level for cyanide (CN) shall be 10 µg/L. CN levels reported as less than 10 µg/L shall be
considered zero for compliance purposes.
7. Chronic Toxicity (Ceriodaphnia) P/F @ 50%; January, April, July, and October; See condition A(2) of the
Supplement to Effluent Limitations and Monitoring Section of this permit.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.

Permit No. NC0020338
•
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 50%.
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. If reporting pass/fail results using the
parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If reporting Chronic Value results
using the parameter code THP3B, DWQ Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR DWQ / Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section 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 Section 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.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such monitoring
shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms submitted.

Permit No. NC0020338
NOTE: Failure to achieve test conditions as specified in.the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid
test and will require immediate follow-up testing to be completed no later than the'last day of the month following the
month of the initial monitoring.
•
•

Permit No. NC0020338
A. (3) EFFLUENT POLLUTANT SCAN
The Permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the attached table (using a
sufficiently sensitive detection level in accordance with 40 CFR Part 136). Samples shall represent seasonal
variations. Unless otherwise indicated, metals shall be analyzed as "total recoverable."
Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ethcr
Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexryl) phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalene
Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Antimony Tetrachloroethylene Di-n-octyl phthalate
Arsenic Toluene Dibenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Trichloroethylene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichlorobenzidine
Lead 4cid.ex[mctabk compounds: Diethyl phthalate
Mercury P-chloro-m-cresol Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dinitrotoluene
Selenium 2,4-dichlorophenol 2,6-dinitrotoluene
Silver 2,4-dimethylphenol 1,2-diphenylhydrazine
Thallium 4,6-dinitro-o-cresol Fluoranthene
Zinc 2,4-dinitrophenol Fluorene
Cyanide 2-nitrophenol Hexachlorobenzene
Total phenolic compounds 4-nitrophenol Hexachlorobutadiene
Voluble oigpnic compoamds• Pentachlorophenol Hexachlorocydo-pentadiene
Acrolein Phenol Hexachloroethane
A,crylonitrile 2,4,6-trichlorophenol i Indeno(1,2,3-cd)pyrene
Benzene Base-ae, Iml compounds: Isophorone
Bromoform Accnaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylaminc
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene
1,1-dichloroethanc Benzo(k) fluoranthene
1,2-dichloroethane Bis (2-chloroethoxy) methane
Test results shall be reported to the Division in DWQ Form- A MR-PPA1 or in a form approved by the
Director within 90 days of sampling. The report shall be submitted to the following address: Division of
Water Quality, Surface Water Protection Section, Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.

AMENDMENT TO FACTSHEET
COMMENTS RECEIVED ON DRAFT PERMIT
9/24/2009 - TOWN OF YADKINVILLE REQUESTED MONTHLYMONITOPJNG FOR MERCURY
INSTEAD OF WEEKLY, AS GIVEN IN THE PERMIT. NOTED THAT HG VALUES HAD BEEN
LOW FOR SEVERAL YEARS AND REQUESTED SOME RELIEF ON MONITORING
FREQU CY—
DWQ SPONSE- BASED ON CONSULTATION WITH EPA AND NPDES SUPERVISOR WILL
RECO END 2/MONTH MONITORING FOR MERCURY. AH bR 24 SAMPLES HAVE BEEN
COT .r .FCITED, UPON WRITTEN REQUEST FROM YADKINVII .T .F, WILL REEVALUATE HG
DATA WITH RPA AND DETERMINE IF HG LIMIT IS STILL NEEDED. TALKED WITH TOM
GRAY, ORC FOR YADKINVII .r P. AND HE CONCURRED WITH THE 2/MO SAMPLING MOD.
WILL CORRECT HG LIMIT FROM 24 UG/L TO 24 NG/L
WILL CHANGE ALL WEEKLY AVERAGE LIMITS FOR METALS TO MONTHLY AVERAGE
LIMITS BASED ON CHANGE IN NC NPDES PROCEDURE FOR ASSIGNMENT OF LIMITS. THIS
WILL INCLUDE CYANIDE AND TOTAL MERCURY. PHENOLS ALREADY HAD A MONTHLY
AVERAGE LIMIT.
THE WE
LIMIT.
KLY AVERAGE LIMIT FOR PHENOLS WILL BE CHANGED TO A DAILY MAXIMUM
THE SAI /IDLE TYPE FOR MERCURY AND PHENOLS WILL BE CHANGED FROM COMPOST! L
TO GRAB.
JACKIE NO WELL 12/ 22/ 2009
Yadkinville Fact Sheet
NPDES Renewal
Page 5

• • Winston-Salem Journal
Advertising Affidavit
Winston-Salem Journal
P.O Box 3159
Winston-Salem, NC 27102
NCDENR/DWQ/POINT SOURCE BRANCH
ATTN: DINA SPRINKLE
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Account Number
3376309
Date
August 28, 2009
Date Category
Description
Ad Size
Total Cost
08/28/2009
Legal Notices
PUBLIC NOTICE North Carolina Environment
2 x 34 L
243.91
PUBLIC NOTICE
North Carolina Environmental
Management Contrnisslon/N PDES Unit
1617 Mail Service' Center
Raleigh, NC 27699-1617
Notice -of tntenntto Issue a
NPDES Wastewater Permft
The North Carolina Environ
Commission proposes to issue
discharge permit to the person
ntal Management
a NPDES wastewater
s) listed below.
Written comments regarding proposed permit
will be accepted until 0 days fter the publish date
of thls notice. The Director the NC Division of
Water Quality (DWQ) may Id a public hearing
should there be a significant degree of public
Interest. Please mail comments and/or Information
requests to'DWQ at the above address. interested
persons may visit the DWQ Id 512 N. Salisbury
Street. Raleigh, NC to review, Information on file.
Additional Information on NPDES permits and this
notice may be found on our bsite: www.ncwater
quatityorg. or by calling (919) 7.6304.
The Town of Yadkfnv0le requ sted renewal of per-
mit NC0020338 for Yadkinvll WWTP in Yadkn
County. This permitted disc is treated muntd-
pal wastewater to the North ep Creek, Yadkin
Pee -Dee River Basin.
WSk August 2$ 2009
Media General Operations, Inc.
Publisher of the
Winston-Salem Journal
Forsyth County
Before the undersigned, a Notary Public of Forsyth County, North Carolina, duly
commissioned, qualified, and authorized by law to administer oaths, personally appeared
D.H. Stanfield, who by being duly sworn deposes and says: that he is Controller of the
Winston-Salem Journal, engaged in the publishing of a newspaper known as Winston-Salem
Journal, published, issued and entered as second class mail in the City of Winston-Salem, in
said County and State: that he is authorized to make this affidavit and swom statement: that
the notice or other legal advertisement, a true copy of which is attached hereto, was
published in the Winston-Salem Journal on the following dates:
08/28/2009
and that the said newspaper in which such notice, paper document, or legal advertisement
was published was, at the time of each and every such publication, a newspaper meeting all
the requirements and qualifications of Section 1-597 of the General Statutes of North
Carolina and was a qualified newspaper within the meaning of Section 1-597 of the General
Statutes of North Carolina.
This 28th day of August, 2009
(signature of person akin
Sworn to and subscribed before me, this 28th day of August, 20
My Commission expires
9
it)
KIMALEY JOHNSON
a NOTARY PUBLIC
21 IA o + FORSYTH COUNTY
STATE OF NORTH CARQLINAd►o
MY COMMISSION EXPIRES 't "
THIS IS NOT A BILL. PLEASE PAY FROM INVOICE. THANK YOU

12-16 09 13:1
FROM-DENF 3367714633 336-771-4633 T-122 P0001/0001 F-140
Beverly Eaves Per ue
Governor
MEMORANDUM
To:
A Tn
gerDENR
North Carolina Department of Environment and Natural
Division of Water Quality
Coleen H. Sullins
Director
August 26, 2009
Lee pencer
NC ENR / EH / Public Water Supply Section Regional Engineer
Win ton -Salem egional Office
From: Jacki Nowell.
NP ES Western Program
Subject: Review of Draft Permit NC0020338
Yadlinville WWIP
Yadkin County
RECEIVED
N.C. Cert. of ENR
AUG 2 8 .2039
esour eston-Salem
egTonal Office
Dee Freeman
Secretary
Post-ite Fax Note 7671
Date /a/J�/0e Ipages� /
From Lee- S peitc.e t'
To /Gtc.k f t, ! YU wel l
CoJDept.
Co. to 5 I( 0
Phone #
Phone # -
-Fax# c t'c
...,$07 —%7c.s
Fax#
Please indicate below your agency's position or viewpoint on the draft permit and return this form by September 9,
2009. If you have any questions on the general permit, please contact me at 919-807-6386 or e-mail to
[e-mail].
RESPONSE: (Check one)
Concur with thee issuance of this permit provided the facility is operated and maintained properly, the stated effluent
limits are mkt prior to discharge, and the discharge does not contravene the designated water quality standards.
Signed
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRNRRRRRR
Concurs with isuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
La.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: vwvw.ncwaterquality.org
An Equal opportunity 1 Affirmative Action Employer
Date: 9 SA
None hCarolina
Naturally

Nowell, Jackie
From: Spencer, Lee
Sent: Wednesday, September 23, 2009 10:41 AM
To: Nowell, Jackie
Cc: James McRight; Kaufman, Tammy
Subject: RE: Yadkinville draft permit - NC0O20338
Jackie,
I concur with the issuance of this permit. Put hard copy in the mail to Jim McRight today.
Lee G. Spencer, P.E.
Regional Engineer
Public Water Supply Section
NC DENR Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Nowell, Jackie
Sent: Friday, August 28, 2009 2:48 PM
To: [e-mail]; Giorgino, John; Spencer, Lee; Tedder, Steve; Hassan, Monti
Subject: Yadkinville draft permit - NC0020338
The subject permit has been sent to public notice this week. Please review and submit any comments to me.
Thanks
Jackie Nowell
1

'OWN YADKINVIL[ ,1E
"A TOWN ICE D
September 17, 2009
North Carolina Division of Water Quality
Jacquelyn Nowell
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Nowell,
Qtfl
DENR - WATER QUALITY
POINT SOURCE BRANCH
Subject: NPDES Draft Permit Comments
Permit No. NC0020338
Yadkinville WWTP
Yadkin County
The Town of Yadkinville has received and reviewed the NPDES Draft Permit for
Yadkinville Wastewater treatment plant. We appreciate the removal of monitoring for
total arsenic, total cadmium, total chromium, and silver along with the removal of limits
for fluoride and lead. However, we are requesting that the DWQ review its decision to
add a weekly monitoring requirement and limits for mercury.
The mercury monitoring requirement with limits was added to the permit due to the
results of the reasonable potential analysis. Yadkinville has sampled effluent mercury 57
times between the period of January 2005 thru July 2009. Of these samples, only one
sample exceeded 20.0 ng/1. On October 4th, 2007, the effluent mercury result was 23.2
ng/l. The field blank for that sampling event showed a background mercury level of 0.25
ng/1. A further review of the 5-year sampling period shows that effluent mercury levels
dropped significantly after January 2006. If you discount the October 4th 2007 sample
result for the year 2007, no samples exceeded 9.0 ngll. For the year 2008, the maximum
detected sample was 11.4 and for the six-month period of sampling in 2009 the maximum
detected level is 5.24 ng/1. These results are well below the stream quality standard for
mercury. It's our contention that the 23.2 ng/1 was an anomaly and request that the
reasonable potential analysis for mercury be recalculated excluding this result. If the
mercury limit is to remain in effect, we request that monitoring be reduced to once per
month and that after 12 months of sampling the requirement for mercury
monitoring/limitations be revisited.
The Town also received a monitoring/limit requirement for total phenolic compounds.
The Town will be conducting sampling and testing to identify the sources of phenolic
compounds and initiate limits where appropriate. If the source of the phenolic
213 Van Buren Street
Post Office Drawer 816
Yadkinville, North Carolina 27055-0816
Telephone [phone]
Fax [phone]

compounds is reduced or eliminated, the town would like the option of having the limit
for phenol removed from the permit.
We thank you for your consideration in these matters. If you have any questions or
comments, please give Tom Gray a call at 336/518-4507.
Sincerely,
Tom Gray, WWTP Superintendent
Town oiYadkinville
Attachment

Nowell, Jackie
From:
Sent:
To:
Subject:
thanks for making
[e-mail]
Monday, September 14, 2009 4:38 PM
Nowell, Jackie
RE: Yadkinville draft permit - NC0020338
those changes - EPA has no comments on the permit as drafted.

Nowell, Jackie
From: Nowell, Jackie
Sent: Monday, September 14, 2009 4:14 PM
To: '[e-mail]'
Subject: RE: Yadkinville draft permit - NC0020338
Marshall,
re: your comments on Hg. The Hg limit should be 24 ng/1 instead of 24 ug/1 and the sample
type should be grab and not composite. I will correct both these errors.
I should let you know that Yadkinville will be sending in more Hg data that shows they've
averaging about 6 ng/1 of Hg for the past 5 years and they don't think a limit is necessary.
I explained how the RPA looks at max. values and predicts the potential to exceed the
allowable concentration. The max. reported value of 23 ng/1 was in 2007 and they don't deny
the value, but they are looking for some relief. Could a compliance schedule for Hg be given
in the final permit?
Jackie
Original Message
From: [e-mail][mailto:[e-mail]]
Sent: Monday, September 14, 2009 12:04 PM
To: Nowell, Jackie
Subject: Fw: Yadkinville draft permit - NC0020338
never heard back from you on these. If you'll make these changes, I'm
ready to say no comment. thanks Marshall
Forwarded by Marshall Hyatt/R4/USEPA/US on 09/14/2009 12:03 PM
Marshall
Hyatt/R4/USEPA/U
S
08/31/2009 10:28
AM
"Nowell, Jackie"
<lackie.nowellOncdenr.Rov>
To
cc
Subject
Re: Yadkinville draft permit -
NC0020338(Document link: Marshall
Hyatt)
1

IdriAf
Yadkinville Effluent Phenols Data
DMR data 1 PriorityPollutant Analysis data
/(% Y
Date Phenols (WI) parameter code=32730 Date Parameter Method Value
Jan-08 <1 Oct-06 Phenol 8270 <10 ug/I
<1 Oct-06 TPCs 420.1 <0.010 mg/I (<10ug/I)
<1
Apr-08 <1 Oct-07 Phenol 625 <5 ug/I
<1 Oct-07 TPCs 420.1 0.0123 mg/I (12.3 ug/I)
<1
Jul-08 <1
<1 Oct-08 Phenol 625 <5.1 ug/I
<1 Oct-08 TPCs 420.4 0.01 mg/I (10 ug/I)
Oct-08 <1
<1 Oct-09 Phenol 625 <5 ug/I
<1 Oct-09 TPCs 420.4 <0.010 mg/1 (<10ug/I)
Oct-09 <0.010 reported as ug/I
<0.010 reported as ug/I TPCs = total phenolic compounds [it
�l Jf/� Q'<0.010 reported as ug/I ati S G, 7 J S�
Jul-09 <0.010 reported as ug/I Vit‘vicAniktkl
lirfrc(` �o
<0.010 reported as ug/l
<0.010 reported as ug/I
Apr-09 <1 reported as ug/I
<1 reported as ug/I
<1 reported as ug/I
Jan-09 <0.010 reported as ug/I
69 reported as ug/I
<0.010 reported as ug/I

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0020338
Facility Information
Applicant/Facility Name:
Town of Yadkinville
Applicant Address:
208 North Jackson Street, Yadkinville, NC
Facility Address:
Off of NCSR 1703, East of Yadkinville, NC
Permitted Flow
2.5 MGD (Grade III facility)
Type of Waste:
60% industrial
40% domestic
Facility/Permit Status:
Renewal
County:
Yadkin
Miscellaneous
Receiving Stream:
North Deep Creek
Regional Office:
Winston-Salem
Stream Classification:
WS-IV; 12-84-1-4
USGS Topo Quad:
C16NW
303(d) Listed?:
No
Permit Writer.
Jackie Nowell
Subbasin:
03-07-02
Date: -
August 11, 2009
Drainage Area (mi2):
35.9
•,1 3 :r ` , `""
i
..,
Summer 7Q10 (cfs)
3.9
Winter 7Q10 (cfs):
10
Average Flow (cfs):
36
IWC (%) @ 2.5 MGD:
50%
Primary SIC Code:
4952
SUMMARY
This facility is a major municipal treatment plant operating in Yadkin County. The current design
capacity is 2.5 MGD and serves a population of 3500 people. The facility has a full pretreatment
program with three significant industrial users and one categorical industrial user. It is
recommended that the pretreatment program be continued in the next permit renewal.
The Yadkinville WWTP discharges into North Deep Creek. According to the 2006 303d list of
impaired streams in North Carolina, the North Deep Creek is not impaired. The draft July 2008
impaired stream list, the following segment of the North Deep Creek is Rated as Impaired for
turbidity: From source to a point 1.0 downstream of Yadkin County State Road 1515. The
Yadkinville WWTP does not discharge into this segment of the North Deep Creek, therefore does
not discharge into an impaired segment.
(The next paragraph is previously submitted information from October 23, 2003
factsheet)
The Yadkinville WWTP was originally permitted in 1980 at a flow of 1.0 MGD discharging into Haw Branch.
The outfall was relocated to North Deep Creek in 1992. A permit application for expansion to 2.5 MGD was
processed in 1997. A wasteload allocation completed by Andy McDaniel in January of 1997 for expansion to 2.5
MGD recommended ef&uent limitations more stringent than secondary in order to protect the State's 5.0 mg/L
dissolved oxygen (DO) standard An authorisation to construct (020338ACD) for that expansion was issued on
June 19, 1997. The engineer's certification for that project was subsequently received July16, 1998.
Yadkinville Fact Sheet
NPDES Renewal
Page 1

TOXICITY TESTING:
Type of Toxicity Test: ` Chronic P/F
Existing Limit: 001: Chronic P/F @ 50%
Recommended Limit 001: Chronic P/F @ 50%
Monitoring Schedule: January, April, July, and October
This facility has passed all chronic toxicity tests since January 2004. It is recommended that the
chronic toxicity test @ 50% be continued in this permit renewal.
COMPLIANCE SUMMARY:
DMRs have been reviewed for the period January 2004 through August 2009. The facility overall
has been consistently meeting its permit limits. There. have been some problems in the past with
meeting the cyanide weekly average and daily maximum limits. Exceedences of the CN limits
occurred in 2004 (1x), 2006 (6x), and 2007 (3x), however there have been no violations of the limit
since September 2007. The facility cleaned out the digester and oxidation basin, clarifier, etc and it
appeared to have corrected the CN problems. No limit or monitoring violations of any
parameters since September 2007.
Last two inspections of the plant have found it to be compliant. Technical Assistance visits have
also been requested by the Town whenever excessive foam appeared in the plant.
INSTREAM MONITORING:
Instream monitoring is required for temperature, dissolved oxygen, fecal coliform, and conductivity.
Upstream site: Bridge on Old US 421
Downstream site #1: Bridge on S.R. 1510
Downstream site #2: Bridge on S.R. 1146
Instream data was reviewed for summer months (April -October) for 2007, 2008, and through June
2009. An analyses of DO and temperature data showed that the facility has no significant negative
impact on the water quality in the receiving stream. There were no reported values below 5 mg/1
DO upstream or downstream of the facility . Instream data for fecal coliform showed consistent
violations of the standard of 200/100m1 both upstream and at both downstream sites. Fecal
Coliform concentrations in the effluent have been consistently below 200/100 mL, therefore the
self monitored *stream fecal violations can probably be contributed to nonpoint source runoff.
It is recommended that instream monitoring for these parameters, temperature, DO, fecal
coliform and conductivity be continued.
REASONABLE POTENTIAL ANALYSIS
Reasonable potential analyses were conducted for cyanide, fluoride and metals based on sampled
data in the discharge monitoring reports (DMRs) from January 2007 through April 2009. Data
from pretreatment Long Term Monitoring Plan (LTMP) was included in the submitted DMRs.
Based on data in the annual pollutant scans, a reasonable potential analysis was also run for
bromoform and dichlorobromomethane. See attached RPA.
• Arsenic, aluminum, cadmium, chromium, fluoride, lead, nickel (LTMP), selenium
(LTMP) and silver demonstrated no reasonable potential to exceed state water quality
standards or acute criteria. No effluent limits or monitoring will be required in the permit.
• Cyanide — Maximum predicted value demonstrated a reasonable potential to exceed the
chronic and acute allowable concentrations. The weekly average limit of 10 ug/1 and daily
maximum limit of 22 ug/1 will remain in the permit.
Yadkinville Fact Sheet
NPDES Renewal
Page 2

• Mercury(LTMP) and phenols(LTMP) — Maximum predicted values for both parameters
demonstrated a reasonable potential to exceed the chronic allowable concentration. A
mercury limit of 24 fig/1 and phenols limit of 4 ug/1 will be placed in the permit.
• C pper and zinc - Maximum predicted values for both parameters demonstrated a
r sonable potential to exceed both the chronic and acute allowable concentrations.
H wever, these are both action level standards and are reviewed in conjunction with
to 'city testing results. The facility has passed all toxicity tests within the past five years,
th efore copper and zinc toxicity is not a problem. It is recommended that 2/month
m nitoring for copper and zinc remain in the permit.
• B omoform and chlorodibromomethane — There was limited data for the RPA however
the max. pred values did not show reasonable potential to exceed the chronic allowable
concentrations. Therefore, no limits or monitoring will be required in the permit. The
fa ility will continue to sample during the annual pollutant scan.
PROPOSED CHANGES:
• 1) Quarterly monitoring for arsenic, cadmium and chromium and 2) twice per month
monitoring for silver will be deleted from the permit based on the results of the RPA
which showed no reasonable potential to exceed the water quality standard instream. These
param ters will continue to be monitored in the pretreatment Long Term Monitoring Program.
• Limi for Fluoride and lead will be deleted from the permit based on the results of the
RPA hich showed no reasonable potential to exceed the water quality standard instream.
Lead continue to be monitored in the pretreatment Long Term Monitoring Program.
• Limits for mercury (24 ug/1) and total phenolic compounds (4 ug/1) will be added to the
permit based on data showing reasonable potential to exceed the water quality standard
instream.
Existing limits and recommended limits/monitoring are summarized in the table below:
Parameter
Existing Limit (µg/L)
Existing
Monitoring
Proposed Limit (µg/L)
Proposed
Monitoring
Arsenic
None
Quarterly
None
None
Cadmium
None
Quarterly
None
None
Chromiun
None
Quarterly
None
None
Silver
None
2/Month
None
None
Fluoride
-Lead
3611
Weekly
None
None
33.8
Weekly
None
None
Phenols
None
None
4
Weekly
Mercury
None
None
24
Weekly
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: August 26, 2009 (est.)
Permit Scheduled to Issue: October 19, 2009 (est.)
Effective Date of the Permit December 1, 2009
STATE C I NTACT:
If you ha - any questions on any of the above information or on the attached permit, please
contact Jelyn M. Nowell at 9807-6386 or [e-mail].
NAME:
DATE:
Yadkinville Fact Sheet
NPDES Renewal
Page 3

REGIONAL OFFICE COMMENT:
NAME: DATE:
SUPERVISOR DATE:
EPA COMMENT:
NAME: • DATE:
Yadkinville Fact Sheet
NPDES Renewal
Page 4

REASONABLE POTENTIAL ANALYSIS
Yadkinville WWTP
NC0020338
Time Period 1/2006.6/2009
Qw (MGD) 2.5
7Q1OS (cis) 3.9
7Q10W (cfs) 10
3002 (cis) 12.3
Avg. Strew Flow, QA (cfs) 35.9
°cluing Stream North DoepCreek
WWTP Class IV
ANC (%) 7Q10S 49.839
7010W 27.928
3002 23.957
QA 9.7423
Stream Class WS4V
Outfall 001
Qw=2.5MGD
PARAM:TER
TYPE
(1)
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NCNQsr %MtJI
Chronic Ames
a race itaPrddr AtkwaMNCw
Arse
is
C
10
ug/L
30 0
2.5
Acute: NIA
_ _ - _ _
ChroMc 103
All vatues below detection level. _ _ _ _
No RP shown to exceed the chronic alowable conc.
No limit or monitoring in permit. Continue in LTMP
Aluminum
C
6500.0
ug/L
29 19
398.0
Acute: N/A
_ _ _
Chronic 66,719
_ _
No RP shown to exceed the chronic allowable cons ---
No limit or monitoring in permit
Cadmium
NC
2 15
ug/L
30 0
0.5
Acute: 15
_
Chronic - — - 4 - —
All values below detection level._ al_
Ne RP to exceede c thhronic or acute lowable cone. --
No limit or monitoring in permit Continue in LIMP
Chromium
NC
50 1,022
ug/L
30 0
2.5
Acute: 1,022
_ _00 _
Chronic:- 1
All values below detection level._ _
No RP to exced the echronic or acute alowable cons — -
No limit or monitoring in permit. Continue in LTMP
Copper
NC
7 AL 7.3
ug/L
88 86
69.3
Acute: 7
_ _ _
Chrorsic -- -14
Copper is NC action level standard.
RP_is shown to exceed chronic and acute allowable cones.
However b/c no toxicity testing failures am past 5 years, —
Cu not thought to be causative. Continue 2/mo monitoring
Cyan
de
NC
5 N 22
10
ug/L
152 21
50.4
Acute: 22
_ _ _
Chronic:- --10
_
RP is shown to exceed (Thio7ii and acute altow bbte cones.
Recommend wk avg and da max limits in permit.
Fluor de
NC
1,800
ug/L
144 144
2,280.0
Acute: N/A
L.—•-------
Chronlc 3,612
— — - -- ------
No RP shown to exceed the chronic allowable cone.
No limit or monitoring In permit.
Led
NC
25 N 33.8
ug/L
151 0
2.5
Acute: 34
_ _ _ _ _ _ _
Chronic: 50
All values below detection level._ _ _ _ _ _
No RP to exceed the chronic or acute alhowwabie conc.
No limit or monitoring in permit Continue in LTMP
Mere
ry
-Chronic:-
NC
12
2.0000
ng/L
30 30
48.0240
Acute: N/A
_ _ _ _
_ _ 714
24
_ _ _
RP is shown to exceed chronic altawablo concontratio —
Recommend weekly avg limit in the permit.
Molybd¢num
1
A
3,500
ug/L
0 0
WA
Acute: WA
_.__-1-_,6_
Chronic 410
----------- ----------.—_—.----
Nickel
NC
88 261
ug/L
30 1
96.7
Acute: 261
_
_ _ _77
Chronic 1
•
NearNearlyail values _ below detection lev_eL _
No RP to exceed the chronic or acute ailowab a_ cone --
No limit or monitoring in permit. Continue In LTMP
Phenols
A
1 N
ug/L
30 4
432.6
Acute: N/A
_
Chronic: - — - 4 - —
_ _
RP is shown t_ o exceed chrome allowable concentration.
Recommend weekly avg Omit in the permit.
Selenium
NC
5.0 56
ug/L
30 0
5.0
Acute: 56
_ _ _
Ctsronic -- -10
AU values below detection Level._
No RP to exceed the ctrotnic or acute afowable cone. -
No limit or monitoring in permit Carthsue in LTMP
Silver
NC
0.06 AL 1.23
ug/L
87 1
15.6
Acute: 1
_ - — _ _ _ —fioug
Chronic: 0
Silver is NC action level standard. Nearly all values BM
-
Aith RP showriot n beGevod to exceed allow. Corte
No Omit or monitoring recommended per BPJ
Zinc
NC
50 AL 67
ug/L
87 87
321.0
Acute: 67
_ _ _ _
Chronic: 100
Zinc is NC action level standard.
RP is shown to exceed chronic and acute allowable cones_.
However b/c no toxicity testing failures to pasi 5 years, I
Zn not thought to be causative. Continue 2/mo monitoring
. Legend:
• " C = Carcinogenic '
NC = Non -carcinogenic
A = Aesthetic
•' Freshwater Discharge
20338rpa2009.xts, rpe
8/11/2009

REASONABLE POTENTIAL ANALYSIS
1
2
Arsenic
Aluminum
Date
1 Jan-2007
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35 Apr-2009
36
Data
BDL=1/2DL Results
5.0 2.5 Std Dev.
5.0 2.5 Mean
5.0 2.5 C.V.
5.0 2.5 n
5.0 2.5
5.0 2.5 Mult Factor =
5.0 2.5 Max. Value
5.0 2.5 Max. Pred Cw
5.0 2.5
5.0 2.5
5.0 2.5
5.0 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
" 5. 2.5
5. 2.5
0.0000
2.5000
0.0000
30
1.0000
2.5 ug/L
2.5 ug/L
Date Data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 Jan-2009
25
26
27
28
29
30
31
32
33
34
35
36
BDL=1/2DL Results
110 110.0 Std Dev. 58.5629
130 130.0 Mean 100.8276
130 130.0 C.V. 0.5808
160 160.0 n 29
150 150.0
1 0.5 Mult Factor = 1.9900
1 0.5 Max. Value 200.0 ug/L
1 0.5 Max. Pred Cw 398.0 uglL
173 173.0
162 162.0
112 112.0
1 0.5
116 116.0
138 138.0
180 180.0
200 200.0
138 138.0
142 142.0
125 125.0
100 100.0
100.0 50.0
100.0 50.0
101 101.0
109 109.0
146 146.0
100.0 50.0
100.0 50.0
100.0 50.0
100.0 50.0
20338rpa2009.xls, data
- 1 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
3
4
Cadmium
Chromium
Date
Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
Jan-2007
<'
1
0.5
Std Dev.
0.0000
1
°c
5 2.5
Std Dev.
0.0000
2
<
1
0.5
Mean
0.5000
2
5 2.5
Mean
2.5000
3
<
1
0.5
C.V.
0.0000
3
5 2.5
C.V.
0.0000
4
<
1
0.5
n
30
4
5 2.5
n
30
5
.<
1
0.5
5
5 2.5
6
<;
1
0.5
MuIt Factor =
1.0000
6
5 2.5
Mult Factor =
1.0000
7
c;,
1
0.5
Max. Value
0.5 uglL
7
5 2.5
Max. Value
2.5 ug/L
8
c
1
0.5
Max. Pred Cw
0.5 ug/L
8
5 2.5
Max. Pred Cw
2.5 uglL
9
c±
1
0.50
9
<
5 2.5
10
i;<
1
0.50
10
<'
5 2.5
11
rs1
r:..�
..{
1
0.50
11
<-
5 2.5
12
.•Gi
1
0.50
12
c
5 2.5
13
<<<E
1
0.50
13
<=
5 2.5
14
<;
1
0.50
14
<'
5 2.5
15
16::
<:
€;.3
1
1
0.50
0.50
15
16
<
<
5 2.5
5 2.5
17
1
0.50
17
<
5 2.5
18
1
0.50
18
<
5 2.5
19
.
1
0.50
19
<
5 2.5
20
4t
1
0.50
20
c
5 2.5
21
a
1
0.50
21
<"
5 2.5
22
t"
1
0.50
22
<=
5 2.5
23
<
1
0.50
23
<ii
5 2.5
24
<1
1
0.50
24
5 2.5
25
.`<
1
0.50
25
5 2.5
26
k<}
1
0.50
26
5 2.5
27
<i
1
0.50
27
5 2.5
28.E
1
0.50
28
5 2.5
29
cY
1
0.50
29
5 2.5
30
Apr-2009
"y<a
1
0.50
30
5 2.5
31
=<
31
32
32
33
33
34
34
35
4
35
t�E
36
,'
36
-2-
20338rpa2009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
5
6
Copper
Cyanide
Date Data
BDL=1/2DL Results
Std Dev.
12. 12.0 Mean
C.V.
14. 14.0 n
14. 14.0
14. 14.0 Mult Factor =
18. 18.0 Max. Value
19. 19.0 Max. Pred Cw
15. 15.0'
17. 17.0
24. 24.0
23. 23.0
6.8 6.8
23. 23.0
24. 24.0
23. 23.0
23. 23.0
26. 26.0
41. 41.0
32. 32.0
29. 29.0
24. 24.0
26. 26.0
26. 26.0
33. 33.0
26. 26.0
38.9
30.6
55.9
34.6
31.8
33.9
28.5
27.1
38.9
30.6
55.9
34.6
31.8
33.9
28.5
27.1
21.3 21.3
20.6 20.6
27.5 27.5
24.9
23.7
26.1
24.9
23.7
26.1
20.7 20.7
20. 20.0
25.8 25.8
29.3 29.3
5. 5.0
19.9 19.9
26.3 26.3
27.8 27.8
24.3 24.3
23.3 23.3
19.2 19.2
29.1
27.9
25.9
30.5
29.1
27.9
25.9
30.5
7.5921
23.6739
0.3207
88
1.2400
55.9 ug/L
69.3 ug/L
Date
1 Jan-2007
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 Jun•2007
52
53
54
55
56
57
58
59
60
61
62 Jan-2008
63
64 Oct-2008
65
66
67
68
69
Data
a<�s
BDL=I/2DL Results
2 5.0 Std Dev. 2.9701
5 5.0 Mean 5.3026
5 5.0 C.V. 0.5601
5 5.0 n 152
5 5.0
5 5.0 Mult Factor = 1.2600
5 5.0 Max. Value 40.0 ug/L
5 5.0 Max. Pred Cw 50.4 ug/L
5 5.000
5 5.000
5 5.000
5 5.000
5 5.000
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5.3 5.0
9.6 5.0
6. 5.0
6.7 5.0
8.5 5.0
5.8 5.0
7.6 5.0
9.4 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
5 5.0
40. 40.0
5.2 5.0
8.5 5.0
5.4 5.0
16. 16.0
6. 5.0
7.6 5.0
6. 5.0
7.4 5.0
6. 5.0
7.1 5.0
5.7 5.0
B. 5.0
8 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
20338rpa2009.xls, data
- 1 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
24.8 24.8
29.2 29.2
29.4 29.4
25.7 25.7
24.6 24.6
21.6 21.6
21.2 21.2
24.8 24.8
25. 25.0
27.3 27.3
26.4 26.4
29.8 29.8
22.3 22.3
25.3 25.3
26.7 26.7
18.5 18.5
18.6 18.6
16.5 16.5
19.2 19.2
19.9 19.9
22.4 22.4
23.6 23.6
24.6 24.6
20.1 20.1
19.9 19.9
23.9 23.9
22.2 22.2
20. 20.0
20.2 20.2
24. 24.0
22.8 22.6
29. 29.0
17.1 17.1
2 1.0
5 2.5
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
Jan-2009
<
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
5. 5.0
- 2 -
20338rpa2009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
144 5. 5.0
145 jYs 5. 5.0
146 5. 5.0
147 5. 5.0
148
149 `G. 5. 5.0
150 5. 5.0
151 5. 5.0
152 5. 5.0
153 a< 5. 5.0
154 5. 5.0
155 5. 5.0
156 5. 5.0
157
158 <« 5. 5.0
159 < 5. 5.0
160 5. 5.0
161 5. 5.0
162 Jun-2009 5. 5.0
163
164
165
�r.
166 "r
167
168
169
170
171
172
173
-3-
20338rpa2009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
7
8
Fluoride
Lead
Date Data BDL=1/2DL Results
1 Std Dev. 291.4136
2 Jan-2007 1200. 1200.0 Mean 1032.1528
3 780. 780.0 C.V. 0.2823
4 n 144
5 1100. 1100.0
6 1100. 1100.0 Mult Factor = 1.1400
7 1200. 1200.0 Max. Value 2000.0 ug/L
8 1200. 1200.0 Max. Pred Cw 2280.0 ug/L
9 '( 1100. 1100.0
10 1200. 1200.0
11 1500. 1500.0
12 1000. 1000.0
13 1000. 1000.0
14 960. 960.0
15 850. 850.0
16 760. 760.0
17 1000. 1000.0
18 1200. 1200.0
19
20 900. 900.0
21 1500. 1500.0
22 1400. 1400.0
23 1800. 1800.0
24 1400. 1400.0
25 930. 930.0
26 1200. 1200.0
27 970. 970.0
28 1100. 1100.0
29
30 1300. 1300.0
31
32 1300. 1300.0
33 1200. 1200.0
34 1200. 1200.0
35 1700. 1700.0
36
37 1300. 1300.0
38 1100. 1100.0
39 1000. 1000.0
40 980. 980.0
41 1000. 1000.0
42 880. 880.0
43 1400. 1400.0
44 910. 910.0
45 910. 910.0
46 1000. 1000.0
47 1000. 1000.0
48
49 1200. 1200.0
50 1000. 1000.0
51 840. 840.0
52 1500. 1500.0
53 = 1700. 1700.0
54 1700. 1700.0
55 2000. 2000.0
56 930. 930.0
57 850. 850.0
58 1000. 1000.0
59 850. 850.0
60 1000. 1000.0
61 1400. 1400.0
62 1000. 1000.0
63
64
65 670. 670.0
66 880. 880.0
67 1800. 1800.0
68 1500. 1500.0
69
Date
Data
BDL=1/2DL Results
5 2.5 Std Dev. 0.0000
5 2.5 Mean 2.5000
5 2.5 C.V. 0.0000
5 2.5 n 151
5 2.5
5 2.5 Mult Factor = 1.0000
5 2.5 Max. Value 2.5 ug/L
5 2.5 Max. Pred Cw 2.5 ug/L
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
<. 5 2.5
<;• 5 2.5
<< 5 2.5
• 5 2.5
<- 5 2.5
• 5 2.5
• 5 2.5
<' 5 2.5
< 5 2.5
<. 5 2.5
<: 5 2.5
<-1 5. 2.5
< 5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
° 5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5.
5.
5.
5.
2.5
2.5
2.5
2.5
5. 2.5
5. 2.5
5. 2.5
-4-
20338rpa2009.xis, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
870. 870.0
830. 830.0
1200. 1200.0
1300. 1300.0
1200. 1200.0
920. 920.0
690. 690.0
870. 870.0
980. 980.0
840. 840.0
1000. 1000.0
930. 930.0
920. 920.0
900. 900.0
800. 800.0
1200. 1200.0
920. 920.0
600. 600.0
960. 960.0
1000. 1000.0
840. 840.0
650. 650.0
980. 980.0
, 850. 850.0
560. 560.0
580. 580.0
510. 510.0
700. 700.0
810. 810.0
1000. 1000.0
810. 810.0
820. 820.0
780. 780.0
750. 750.0
760. 760.0
760. 760.0
710. 710.0
820. 820.0
1000. 1000.0
740. 740.0
840. 840.0
600. 600.0
630. 630.0
930. 930.0
750. 750.0
780. 780.0
760. 760.0
980. 980.0
1000. 1000.0
930. 930.0
920. 920.0
500. 500.0
510. 510.0
940. 940.0
920. 920.0
1400. 1400.0
Nov-2008 1200. 1200.0
Jan-2009 800 800.0
950 950.0
,000 1000.0
,100 1100.0
,800 1800.0
1,600 1600.0
1,600 1600.0
1,500 1500.0
1,500 1500.0
1,200 1200.0
70 5. 2.5
71 5. 2.5
72 5. 2.5
73
74 5. 2.5
75 5. 2.5
76 5. 2.5
77 5. 2.5
78 5. 2.5
79 5. 2.5
80 ? 5. 2.5
81 5. 2.5
82 5. 2.5
83
84 < 5. 2.5
85 <' 5. 2.5
86 < 5. 2.5
87 < 5. 2.5
88 < 5. 2.5
89 <: 5. 2.5
90 < 5. 2.5
91 <i 5. 2.5
92 < 5. 2.5
93 <= 5. 2.5
94 < 5. 2.5
95
96 <, 5. 2.5
97 < 5. 2.5
98 5. 2.5
99 <:, 5. 2.5
100 < 5. 2.5
101 <; 5. 2.5
102
103 < 5. 2.5
104 < 5. 2.5
105 < 5. 2.5
106 < 5. 2.5
107 < 5. 2.5
108 < 5. 2.5
109 < 5. 2.5
110 < 5. 2.5
111 < 5. 2.5
112 < 5. 2.5
113
114 < 5. 2.5
115 < 5. 2.5
116 < 5. 2.5
117 <' 5. 2.5
118 < 5. 2.5
119 5. 2.5
120 5. 2.5
121 5. 2.5
122 5. 2.5
123 < 5. 2.5
124 < 5. 2.5
125 <. 5. 2.5
126 <• 5. 2.5
127 < 5. 2.5
128 <. 5. 2.5
129
130
131 < 5. 2.5
132 < 5. 2.5
133 < 5. 2.5
134 < 5. 2.5
135
136
137
138 < 5. 2.5
139
140 < 5. 2.5
141 < 5. 2.5
142 < 5. 2.5
143 < 5. 2.5
20338rpa2009.xls, data
- 5 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
720 720.0
1,400 1400.0
920 920.0
1,000 1000.0
850 850.0
900 900.0
1,200 1200.0
1,200 1200.0
1,100 1100.0
1,100 1100.0
860 860.0
1,000 1000.0
1,400 1400.0
1,100 1100.0
950 950.0
710 710.0
870 870.0
1,000 1000.0
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
y�4
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
5. 2.5
20338rpa2009.xis, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
9
10
Mercury
Molybdenum
Date
1 Jan-2007
2
3
4 Apr-2007
5
6
7 Jul-2007
8
9
10 Oct-2007
11 Oct-2007
12 Oct-2007
13 Jan-2008
14
15
16 Apr-2008
17
18
19 Jul-2008
20
21
22 Oct-2008
23
24
25 Jan-2009
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
Data
BDL=1/2DL Results
3.9 3.9 Std Dev. 3.8065
3.25 3.3 Mean 6.0313
3.77 3.8 C.V. 0.6311
7.08 7.1 n 30
7.28 7.3
8.91 8.9 Mult Factor = 2.07
3.96 4.0 Max. Value 23.2 ng/L
4.22 4.2 Max. Pred Cw 48.0 ng/L
4.9 4.9
6.7 6.7
23.2 23.2
8.0 8.0
4.5 4.5
5.0 5.0
5.5 5.5
8.6 8.6
7.4 7.4
6.7 6.7
4.8 4.8
5.7 5.7
4.6 4.6
3.8 3.8
4.4 4.4
11.4 11.4
5.2 5.2
4.7 4.7
4.4 4.4
2.5 2.5
3.4 3.4
3.5 3.5
Date Data
BDL=1/2DL Results
Std Dev. NO DATA
Mean NO DATA
C.V. NO DATA
n 0
Mult Factor = N/A
Max. Value 0.0 ug/L
Max. Pred Cw N/A ug/L
-7-
20338rpa2009.xis, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
11
12
Nickel
Phenols
Date Data BDL=1/2DL Results
Ix 5 2.5 Std Dev.
5 2.5 Mean
5 2.5 C.V.
5 2.5 n
5 2.5
Apr-2007 27 27.0 Mult Factor =
5 2.5 Max. Value
5 2.5 Max. Pred Cw
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
Jan-2009 5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
4.4731
3.3167
1.3487
30
3.5800
27.0 ug/L
96.7 ug/L
Date Data BDL=1/2DL Results
1 < 1 0.5 Std Dev. 13.3939
2 < 1 0.5 Mean 4.8800
3 < 1 0.5 C.V. 2.7447
4 < 1 0.5 n 30
5 < 1 0.5
6 < 1 0.5 MuIt Factor = 6.2700
7 <! 1 0.5 Max. Value 69.0 ug/L
8 23 23.0 Max. Pred Cw 432.6 ug/L
9 A 21 21.0
10 < 10 5.0
11 <1 10 5.0
12 ' 11.4 11.4
13 <1 1 0.5
14 <; 1 0.5
15 <5 1 0.5
16 <; 1 0.5
17 <3 1 0.5
18 1 0.5
19 1 0.5
20 1 0.5
21 < 1 0.5
22 <; 1 0.5
23 1 0.5
24 1 0.5
25 Jan-2009 1 0.5
26 1 0.5
27 69 69.0
28 1 0.5
29 1 0.5
30 1 0.5
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
20338rpa2009.xls, data
- 10 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
13
14
Selenium
Silver
Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 Jan-2009
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
Data
BDL=1/2DL Results
10 5.0 Std Dev. 0.0000
10 5.0 Mean 5.0000
10 5.0 C.V. 0.0000
10 5.0 n 30
10 5.0
10 5.0 Mult Factor = 1.0000
10 5.0 Max. Value 5.0 ug/L
10 5.0 Max. Pred Cw 5.0 ug/L
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
10 5.0
Date Data BDL=112DL Results
1 tir 5 2.5 Std Dev. 1.0185
2 5 2.5 Mean 2.6092
?:a
3 5 2.5 C.V. 0.3904
4Y 5 2.5 n 87
5 5 2.5
6 5 2.5 Mult Factor = 1.3000
7 4 5 2.5 Max. Value 12.0 ug/L
a
8 < 5 2.5 Max. Pred Cw 15.6 ug/L
9 5 2.5
10 « 5 2.5
11 5 2.5
12 5 2.5
13 5 2.5
14 5 2.5
15 « 5 2.5
16 < 5 2.5
17 < 5 2.5
18 < 5 2.5
19 < 5 2.5
20 < 5 2.5
21 < 5 2.5
22 < 5 2.5
23 < 5 2.5
24 <. 5 2.5
25 Apr-2007 12 12.0
26 < 5 2.5
27 < 5 2.5
28 < 5 2.5
29 < 5 2.5
30 < 5 2.5
31 <: 5 2.5
32 <' 5 2.5
33 <5 2.5
34 5 2.5
35 <: 5 2.5
36 < 5 2.5
37 < 5 2.5
38 < 5 2.5
39 < 5 2.5
40 < 5 2.5
41 < 5 2.5
42 < 5 2.5
43 < 5 2.5
44 < 5 2.5
45 < 5 2.5
46 < 5 2.5
47 < 5 2.5
48 < 5 2.5
49 <- 5 2.5
50 < 5 2.5
51 < 5 2.5
52 < 5 2.5
53 <' 5 2.5
54 <I 5 2.5
55 < 5 2.5
56 < 5 2.5
57 < 5 2.5
58 < 5 2.5
59 < 5 2.5
60 < 5 2.5
61 < 5 2.5
62 < 5 2.5
63 < 5 2.5
64 < 5 2.5
65 < 5 2.5
66 < 5 2.5
67 < 5 2.5
68 < 5 2.5
69 < 5 2.5
20338rpa2009.xls, data
- 13 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98 •
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
5 2.5
-14-
20338rpa2009.xis, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
- 15 -
20338rpa2009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
15
Zinc
1
2
3
4
5
6
7
8
9
10
11
12 100. 100.0
13 -- 42. 42.0
14 98. 98.0
15 110. 110.0
16 98. 98.0
17
18 82. 82.0
19
20 100. 100.0
21 120. 120.0
22 100. 100.0
23
24 100. 100.0
25 88. 88.0
26 36. 36.0
27 170. 170.0
28 98. 98.0
29 87. 87.0
30 261. 261.0
31
32 126. 126.0
33 103. 103.0
34 159. 159.0
35 118. 118.0
36 106. 106.0
37 106. 106.0
38 109. 109.0
39 120. 120.0
40
41
42 99. 99.0
43 61.2 61.2
44
45
46
47 109. 109.0
48
49 118. 118.0
50 111. 111.0
51 113. 113.0
52
53 130. 130.0
54 106. 106.0
55 119. 119.0
56 149. 149.0
57 10. 10.0
58
59 120. 120.0
60 104. 104.0
61 119. 119.0
62 101. 101.0
63 101. 101.0
64 87. 87.0
65
66 85. 85.0
67 103. 103.0
68 .. 98.1 98.1
69 76.9 76.9
Date Data BDL=1/2DL Results
83. 83.0 Std Dev. 29.8017
Mean 97.3632
100. 100.0 C.V. 0.3061
98. 98.0 n 87
99. 99.0
130. 130.0 Mult Factor = 1.2300
110. 110.0 Max. Value 261.0 ug/L
130. 130.0 Max. Pred Cw 321.0 ug/L
110. 110.0
110. 110.0
20338rpa2009.xls, data
- 16 - 8/11/2009

REASONABLE POTENTIAL ANALYSIS
74.5 74.5
72.5 72.5
• 81.4 81.4
88.4 88.4
76. 76.0
83.7 83.7
92.2 92.2
82.6 82.6
66. 66.0
77.8 77.8
77.7 77.7
.97.5 97.5
i91.7 91.7
88.5 88.5
126. 126.0
'72.2 72.2
72.4 72.4
85.2 85.2
97. 97.0
98.1 98.1
105.
68.4
96.6
74.2
70.5
74.6
75.2
j 74.4
i 76.9
77.8
82.3
105.0
88.4
96.6
74.2
70.5
74.6
75.2
74.4
76.9
77.8
82.3
80. 80.0
66.1 66.1
- 17 -
20338rpa2009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
Ya.dkinville VWVTP
NC0020338
Time Period 2006-2008
Qw (MGD)
7QIOS (cfs)
7Q 10W (cfs)
30Q2 (cfs)
Avg. Stream Flow, QA (cfs)
2.5
3.9
10
12.3
35.9
Rec`ving Stream North Deep Creek
WWTP-Class-III
Outfall 001-
Qw = 2.5 MGD
IWC (%) @ 7QIOS 49.839
@ 7Q1OW 27.928
@ 30Q2 23.957
@ QA 9.7423
Stream Class WS-IV
PARAMETER
TYPE
(1)
STANDARDS &
CRITERIA (2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS/ 7, FAV/
Chronic Acute
n it Det. Max Prod Cw Allowable Cw
Bromoform
C
140.0
ug/L
3 2
Note: n<12
Limited data
797.4
set•
Acute: N/A
Limited data, however max. pred. conc. < chronic allowable
No RP to exceed allowable based on fed. Criteria
_ _ _ _ _ _
Chronic: 1,437
No monitoring recommended in permit. Monitor in PPA
Chlorodibromomethane
C
13
ug/L
3 3
Note: n<12
Limited data
69.5
set
Acute: N/A
Limited data, however max. pred. conc. < chronic allowable
No RP to exceed allowable based on fed. Criteria
_ _
Chronic: 133
o monitoring recommended in permit. Monitor in PPA
20338rpa112009.xls, rpa
8/11/2009

REASONABLE POTENTIAL ANALYSIS
1
Bromoform
Date Data BDL=1/20L Results
1 Oct-2007 37.3 37.3 Std Dev. 33.4591
2 Oct-2008 69.4 69.4 Mean 36.4000
3 Oct-2006 5.0 2.5 C.V. 0.9192
4 n 3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Mult Factor = 11.4900
Max. Value 69.4 ug/L
Max. Pred Cw 797.4 ug/L
-1-
20338rpa112009.xls, data
8/11/2009

REASONABLE POTENTIAL ANALYSIS
3
Chlorodibromomethane
Date
1 Oct-2006
2 Oct-2007
3 Oct-2008
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Data
BDL=1/2DL Results
22 22.0 Std Dev. 6.6910
9.9 9.9 Mean 17.6000
20.9 20.9 C.V. 0.3802
n 3
Mult Factor = 3.1600
Max. Value 22.0 ug/L
Max. Pred Cw 69.5 ug/L
20338rpa112009.xls, data
- 2 - 8/11/2009

NPDES/Aquifer Protection Permitting Unit Pretreatment Information Request Form
PERMIT WRITERS - AFTER you get this form
PERMIT WRITER CO
PLETES THIS PART:
Check all that apply
back from PERCS:
- Notify PERCS if LTMP/STMP data we said should
Date of Request
8/4/2009
municipal renewal
x
be on DMRs is not really there, so we can get it for
Requestor
Jackie Nowell
new industries
you (or NOV POTW).
Facility Name
Yadkinville
WWTP expansion
- Notify PERCS if you want us to keep a specific
Permit Nu
ber
NC0020338
Speculative limits
POC in LTMP/STMP so you will have data for next
R
gion
WSRO
stream reclass.
Permit renewal.
- Email PERCS draft permit, fact sheet, RPA.
asin
Yadkin/Pee Dee
stream relocation
- Send PERCS paper copy of permit (w/o NPDES
7Q10 change
boilerplate), cover letter, final fact sheet. Email RPA
other
if changes.
other
check a
PERCS
staff:
Other Comments
to
= 3
PERCS: T O k 04 S1 U
plicable
S
CTB, CHO, LUM, NEW, ROA - Dana Folley (523)
CI LI y
X
HIW, LTN, NEU, YAD - Monti Hassan (371)
BRD, CPF, FRB,
TAR - Sarah Morrison (208)
PCO J I u 1 I Al S WC ID*,
ao010(2fo (A" .
Attsts-IthCO, Sr2 ►r s
PERCS PRETREATMENT
Status of Pretreatment
STAFF COMPLETES THIS PART: 44, DOS )( CI .
Program (check all that apply)
1) facility ha
no SIU's, does have Division approved Pretreatment Program that is INACTIVE
2) facility ha
no SIU's, does not have Division approved Pretreatment Program
3) facility has
SIUs and DWQ approved Pretreatment Program (list "DEV" if program still under development)
3a) Full Program
with LTMP
3
3b) Medi
led Program with STMP
4
4) additiona
conditions regarding Pretreatment attached or listed below
STMP time frame:
Most recent:
Flow,
MGD
Permitted
Actual
Time period for Actual
Next Cycle:
Industrial
0.5 to S
0 , 7S_
mo 46
Uncontrollable
n/a
(), G,
t%
POC in
LTMP!
STMP
Parame
Concern (
Check
of
OC)
st
POC due to
NPDES! Non-
Disch Permit
Limit
Required
by EPA*
ickSc
�p
Requiro8'-
by 503
Sludge**
POC due
to SIU***
POTW POC
(Explain
below)""
STMP
Effluent
Freq
LTMP
Effluent
Freq
V
BOD
V
✓
4
Q M
Quarter)
V
TSS
V
V
4
Q M
Q2
V
NH3
4
Q M
M = ont ly
se
Arsenic c
V
4
Q M
C
Cadmium =c
4
v
V
4
Q M
1/
Chromium
'
4
V
4
Q M
4
Copper
I
✓
✓
4
Q M
C
Cyanide
✓
4
Q M
all data on DMRs?
I
Lead
ti
4
V
✓
4
Q M
YES
v
Mercury 1
V
4
Q M
NO (attach data)
4
Q M
vMolybdenum
Nickel -.
-
4
V
V
4
Q M
✓
Silver
1%
4
Q M
V
Selenium
V
4
Q M
.1
Zinc
4
r
tf
4
Q M
data in spreadsheet?
T
Total Nitrogen
4
Q M
YES (email to writer)
P
Phosphorus
4
Q M
NO
✓
`Liorl[�
_
V
4
QM
V
Shpna
V
4
Q M
4
Q M
4
Q M
*Alwaysin the LTMPJSTMP ** Only in LTMP/STMP if sludge land app or composte (dif POCs for incinerators)
*** Only in LTMP/STIf while SIU still discharges to POTW **** Only in LTMP/STMP when pollutant is still of concem to POTW
Comments to Permit Writer (ex.. explanation of any POCs: Info you have on IU related investigations into NPDES problems):
I
yadkinviiiepirf
Revised: July 24, 2007

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IOWN OF YADKINVILLE
April 8, 2008
Mrs. Frances Candelaria
NC DENR/DWQ/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Mrs. Candelaria,
"A TOWN IN PROGRESS"
RECEIVED
APR 1 1 20*
DENR • WATER QUALITY
POINT SOURCE BRANCH
Enclosed is our application for renewal of our permit with no changes since the issuance
of the last permit.
If you have any questions, please feel free to call me at 336/679-2184.
Sincerely
Tom Gray, WWTP/ ORC
Town of Yadkinville
213 Van Buren Street
Post Office Drawer 816
Yadkinville, North Carolina 27055-0816
Telephone [phone]
Fax [phone]

Town of Yadkinville WWTP
NC 0020338
Sludge Management Plan
Thg VV Ti'P maintains the sludge produced in a 0.350 MGD aerobic
digester. The digester is aerated periodicallyon a 24 hour basis. Once the sludge
9 � g
has thickened to at least 2% solids and held for at a minimum of 40 days, it is
transferred to a 0.231 MGD digester to be decanted and aerated to further
increase the solids content.
Once the sludge has passed a vector attraction test, it is land applied by
Synagro, laccording to the conditions in the Town's Land Application Permit
WQ0001 300.

Additional information, if prov!ded, will appear on the following pages.
B 4. Operation/Maintenance Pjeriormed by Contractors
Name tlixon Power Services
Address 297 Hill Avenue
Nashville, TN 37210
Telephone number 615-244-0650
Responsibilities of Co
tractor: Does preventative maintenance on back up power generator
Name: p'versified Integration, Inc
Address:
Telephone Number:
�113 Fries Rd
alax, VA 24333
276-236-7211
Responsibilities of Contractor: Calibrate all flow recorders and instruments in plant
Name:
Address:
Telephone number:
Gardner Denver
100 Gardner Park
Peachtree City, GA 30269
1-800-982-3009
Responsibilities of Contractor: Service Blowers

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•
L=FF To II. 1D e? CrRcl<

FACILITY NAME AND PERMIT NUMBER:
Town of Yadkinville WWTP, NC0020338,
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Yadkin
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges
complete part F.
GENERAL INFORMATION:
from significant industrial users or which receive RCRA,CERCLA, or other remedial wastes must
works have, or is subject ot, an approved pretreatment program?
(SIUs) and Categorical Industrial Users (ClUs). Provide the number
treatment works.
of each of the following types of
questions F.3 through F.8 and
F.1. Pretreatment program. Does the treatment
El Yes ❑ No
F.2. Number of Significant Industrial Users
industrial users that discharge to the
a. Number of non -categorical SIUs.
b. Number of CIUs.
SIGNIFICANT INDUSTRIAL USER
3
INFORMATION:
to the treatment works, copy
Supply the following information for each SIU_ If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: The Austin Company
Mailing Address: 2100 Hoots Road (P.O. Box 2320)
Yadkinville, North Carolina 27055
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Manufactures electrical enclosures.
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Electrical Enclosures
Raw material(s): Carbon Steel, galvanized steel, stainless steel, aluminum
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
1050 gpd ( X continuous or intermittent)
the collection system in gallons per
discharged into the collection system
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
700 gpd ( X continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes 0 No
b. Categorical pretreatment standards El Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
40 CFR 433 Metal Finishing 2005 avq. flow .0595, 2006 avq. flow .0588. 2007 avq. flow .0279.

SIGNIFICANT INDUSTRIAL USER INFORMATION:
Supply the following information for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Unifi, Inc.
Mailing Address: 601 East Main Street P. O. Box 1437
Yadkinville, North Carolina 27055 Reidsville North Carolina 27323-1437
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Manufactures electrical enclosures.
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Textured polyester vam
Raw material(s): Raw polyester yam, yarn lubricant ( natural & mineral)
F.6. Flow Rate.
c. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
24,831 gpd ( X continuous or intermittent)
d. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
3.069
gpd ( X continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes
b. Categorical pretreatment standards ® Yes
❑ No
❑ No
If subject to categorical pretreatment standards, which category and subcategory?
40 CFR 410 Textile Mills 2005 average flow .00375, 2006 avg. flow .00250, 2007 avg. flow .00175
SIGNIFICANT INDUS
Supply the following inf
provide the information
TRIAL USER INFORMATION:
ormation for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
requested for each SIU.

F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Unifi. Inc.
Mailing Address: 1032 Unifi Industrial Road P.O. Box 1437
Yadkinville, North Carolina 27055 Reidsville North Carolina 27323-1437
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Polyester yarn texturing. Polyester fiber spinning
F.S. Principal Product(s) and Raw Materiai(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Textured polyester yam, Raw polyester fiber.
Raw material(s): Raw polyester yarn, yarn lubricant ( natural & mineral oils) paper tubes, polyester chip.
F.6. Flow Rate.
e. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
145,176 gpd ( X continuous or intermittent)
f. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
12 624
gpd ( X continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits
b. Categorical pretreatment standards
Yes ❑ No
® Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
40 CFR 410 Textile Mills 2005 avg. flow 0 .145, 2006 average Flow 0.1337, 2007 average flow 0.1578