NCG500127_Regional Office Historical File ARO 20200526 2nd

PAT MCCRORY.:�
I
1 IiQNA2,D R. VAN DER VAART
ME
Wnlet 12esmurtrs S. 1AY ZIMMERMAN
env eomm�nrn,.Duna*v
I
January 19, 2016
Mr. Steve Cahoon
Duke Energy Carolinas, LLC
410 S Wilmington St
Raleigh, NO 27601
Subject: Renewal of General Permit NCG500000
Thorpe Hydroelectric Station
Certificate of Coverage NCG500127
Jackson County
Dear Permittee:
The Division has renewed the subject General Permit. We appreciate your patience during the
longer-than-expected renewal period. The Division hereby issues the updated version of Certificate of
Coverage (CoC) NCG500127 under General Permit NCG500000. It is issued pursuant to the requirements
of North Carolina General Statue 143-215.1 and the Memorandum of Agreement between North Carolina
and the US Environmental Protection agency dated October 15, 2007 for as subsequently amended].
If any parts, measurement frequencies or sampling requirements contained in this General Permit
are unacceptable to you,you have the right to request an individual permit by submitting an individual
Permit application. Unless such demand is made,the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the
Division. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Asheville Regional Office prior to any sale or transfer of the Permitted facility.
Regional Office staff will assistyou in document' the transfer of th's VnQ
This permit does not affect the legal requirements to obtain any other State, Federal, or Local
governmental permit that may be required. If you have any questions concerning the requirements of the
General Permit,please contact Charles Weaver of the NPDES staff[919 807-6391 or
charleaweaverpncdenr.gov].
r�
�f.,S
Sim
.Jay Zimmerman,Director
Division of Water Resources
cc: Asheville Regional Office ---
NPDES file [i11 Of Watal Rr",
UNi51pn of water Hoscurcas
JAN 2 8 2016
State ofNorth Carolina Environmental Quality I Water Resources mtr o q •n,a in emtions
1617 Mail Service Center I Raleigh,NC 27699
9198076300 919-807-6389PAX
hUp://portal.ncd=..org/web/wq

1
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500127
DISCHARGE OF NON-CONTACT COOLING WAT
ER, COOLING TOWER AND BOILER -
BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING WATERS ASSOCIATED
WITH HYDROELECTRIC OPERATIONS, AND SIMILAR WASTEWATERS 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,
Duke Energy Carolinas, LLC
is hereby authorized to discharge from a facility located at the
Thorpe Hydroelectric Station
13201 NC Hwy 107
Tuckasegee
Jackson County
to receiving waters designated as the West Fork Tuckasegee River, a class WS-III &B Trout
stream in subbasin 04-04-02 of the Little Tennessee River Basin in accordance with the effluent
limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV
hereof.
This certificate of coverage takes effect January 19, 2016.
This Certificate of Coverage shall remain valid for the duration of the General Permit.
Signed this day January 19, 2016
illl �G
for C ' ay Zimmerman, Director --
mision of Water Resources
3e'1S W t' By Authority of the Environmental Management Commission

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Pat McCrory Thomas A.Reeder John E.Skvarla,III
Governor Director Secretary
NOTICE OF RENEWAL INTENT
[Required by 15A NCAC 0214.0127(dll; [term definition see 15A NCAC 02H.0103(19)1
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Covering (CoQ; NCG500127
(Press Tab to navigate form)
1) Mailing address of facility owner/operator: (address to which all correspondence should be malled)
Company Name Duke Energy Carolinas,LLC
Owner Name Steve Cahoon
Street Address 410 S Wilmington St
City Raleigh State N.C. ZIP Code 27601 -
Telephone# [phone] Fax# [phone]
Email Address [e-mail]
2) Location of facility producing discharge:
Facility Name Thorpe Hydroelectric Station
Facility Contact W.Marcus Pitts
Street Address 13201 Highway 107
City Tuckasegee State NC ZIP Code 28783-
County Jackson
Telephone it 864-304-9703 Fax# -
Email Address [e-mail]
3) Description of Discharge:
a) is the discharge directly to the receiving stream?
® Yes
❑ No—Please submit a site map with the pathway to the potential receiving waters clearly marked.This
includes tracing the pathway of the storm sewer to the discharge point,if the storm sewer is the only
viable means of discharge.
b) Number of discharge outfalls(ditches,pipes, channels, etc. that convey wastewater from the property):
Two
Page 1 uf3

NCG500000 Renewal Application
c) What type of wastewater is discharged?Indicate which discharge points,if more than one.
® Non-contact cooling water Outfall(a)#:001
❑ Boiler Blowdown Outfall(a)#:
❑ Cooling Tower Blowdown Outfall(s)#:_
❑ Condensate Outfall(s)#:_
® Other Outfall(s)#: 002
(Please describe"Other"): Sumo
d) Volume of discharge per each discharge point(in GPD):
4001:5331360 GPD 4002:72.000 GPD 4003:_GPD #004:_GPD
4) Please check the type of chemical[s] added to the wastewater for treatment,per each separate discharge
point(if applicable, use separate sheet):
❑Chlorine ❑Biocides ❑Corrosion inhibitors ❑Algaecide ❑Other_ ®None
If any box other than None is checked,a completed Biocide 101 Form and manufacturers' information on the
additive must be submitted to the following address for approval:
NC DENR/DWR/Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh,NC 27699-1621
5) Is there any type of treatment being provided to the wastewater before discharge?(i.e., retention ponds,
settlingponds, etc.)
❑ Yes-Please include design specifics(i.e,design volume,retention time,surface area,etc.)with submittal
package. Existing treatment facilities should be described in detail.
® No
6) Discharge Frequency:
a) The discharge is: ® Continuous ❑ Intermittent ❑ Seasonal
i) If the discharge is intermittent,describe when the discharge will occur:
ii) If seasonal,check the month(s)the discharge occurs:
❑Jan ❑Feb ❑Mar. ❑Apr ❑May ❑Jun ❑Jul ❑Aug. ❑Sept. ❑Oct. ❑Nov. ❑Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: ® Sat. ® Sun. ®Mon. ®Tue. ®Wed. ®Thu. ®Fri.
I
Page 2 of 3

NCG500000 Renewal Application
Additional Application Requirements:
The following information must be included in duplicate [original + I copy] with this application or it
will be returned as incomplete.
➢ Site map. If the discharge is not directly to a stream,the pathway to the receiving stream must
be clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer(or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of the
applicant,per 15A NCAC 021-1.0138(b)(1).
CERTIFICATION
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Randy C.Herrin Title: GM III Regional Fleet
(Please review 15A NCAC P211,0106(c)for authorized signing officials)
�{/�/ /�/&/zoiS
Click here to enter a date.
Signature ofAppi6elfit Date Signed
North Carolina General Statute 6 143-215.6B provides that:
Any person who knowingly makes any false statement representation, or certification in any application, record,
report, plan, or other document filed or required to be maintained under this Article or a rule implementing this
Article,or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article;or who falsifies,tampers with,or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the Commission implementing this
Article, shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars
($10,000). 18 U.S.C. Section 1001 provides a punishment by a fine or imprisonment not more than 5 years,or both,
for a similar offense.
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
Mail the original and one copy of the entire package to:
NC DENR/DWR/Water Permitting Section
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
Attn: Charles Weaver
Page 3 of

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman.
Governor Director Secretary
August 3, 2012
Mr.Allen Stowe,Jr.
Duke Energy Corporation
526 South Church Street/EC 13K
Charlotte, NC 28202
Subject: Renewal of coverage/General Permit NCG500000
Thorpe Hydroelectric Station
Certificate of Coverage NCG500127
Jackson County
Dear Permittee:
The Division is renewing Certificate of Coverage (CoC) NCG500127 to discharge under NPDES
General Permit NCG500000. This CoC is issued pursuant to the requirements of North Carolina General
Statue 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental
Protection agency dated October 15, 2007 [or as subsequently amended].
If any parts, measurement frequencies or sampling requirements contained in this General Permit
are unacceptable to you, you have the right to request an individual permit by submitting an individual
permit application. Unless such demand is made, the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the
Division. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Asheville Regional Office Prior to any sale or transfer of the Permitted facility.
Regional Office staff will assist you in'documenting the transfer of this CoC
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 permit that may be required.
If you have any questions concerning the requirements of the General Permit, please contact John
Hennessy [919 807-6377 or john.henmesyC6ncdenr.gov].
Sincerely,
Original signed by fTo/ya, gnnZssu ,,. .. .
for Charles Wakild,P,E.
cc: Asheville Regional Office/Surface Water Protection r
NPDES fie .��:��I c:
r
ij
S -P 2. " 2012
1617 Mall Service Center,Raleigh,Notlh Carolina 27699-1617
512 North Salisbury Street,Raleigh,North Carolina 27604 1 n ' N(I1'Ch 'ar0lY11a
Phone: [phone]/FAX [phone]/Internet:vm mceaterqually.org ^a�'/C����,
An Equal Oppodunity/Aff native Action Employer-50%Recycled/10%Post Consumer Paper ,, , Y/�/ lZ

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500127
TO DISCHARGE NON-CONTACT COOLING WATER, COOLING TOWER AND
BOILER BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS 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,
Duke Energy Corporation
is hereby authorized to discharge Hydroelectric Dam Sumps & Non-contact Cooling Water
from a facility located at
Thorpe Hydroelectric Station
NC Hwy 107 Near NC Hwy 28
I Tuckasegee
Jackson County
to receiving waters designated as the Tuckasegee River in subbasin 04-04-02 of the Little
Tennessee River Basin in accordance with the effluent limitations, monitoring
requirements, and other conditions set forth in Parts 1, II, III and IV hereof.
This Certificate of Coverage shall become effective August 3, 2012.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 3, 2012
Original signed by John Hennessy
for Charles Wakild, Director
Division of Water Quality
By Authority of the Environmental Management Commission

NCDENR
North Carolina Department of Environment and Natural Resources
Dlvlslon of Water Quality
Beverly Eaves Perdue - Charles Wakild,P.E. Dee Freeman
Governor Director Secretary
August 3, 2012
Mr.Allen Stowe,Jr.
Duke Energy Corporation
526 South Church Street I EC 1SK
Charlotte, NC 28202
Subject: Renewal of coverage I General Permit NCG500000
Thorpe Hydroelectric Station
Certificate of Coverage NC0500127
Jackson County
- Dear Permittee:
In accordance with your renewal application[received on January 27,2012],the Division is renewing
Certificate of Coverage(CoC)NCG500127 to discharge under General Permit NCG500000. This Coo is
issued pursuant to the requirements of North Carolina General Statue 143-215.1 and the Memorandum of
Agreement between North Carolina and the US Environmental Protection agency dated May 9, 1994[or as
subsequently amended].
If any parts,measurement frequencies or sampling requirements contained in this General Permit
are unacceptable to you,you have the right to request an individual permit by submitting an individual
permit application. Unless such demand is made,the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the
Division. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact th Asheville Regional Office Prior to 1 transfer of the permittedf •lit
Regional Office staff will assist You documenting the transfer of this Coo.
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 permit that may be required.
If you have any questions concerning the requirements of the General Permit,please contact John
Hennessy[919 807-6377 or johnhennessy@ncdenvgov]. '/j SEP 18 2012
for Charles Wakild,
ce: Asheville Regional Office l Surface Water Protection ScOI'ION
NPDES file A I I r r
1617 Mall Service Center,Raleigh,North Caroline 27699-1 61 7 nT�tle
512 North Salisbury Street,Raleigh,North Carolina 27604 1��0�,,,...��tyyy,,,Carolina
Phone: [phone] FAX [phone] I Internet:ww xmalerqualihmrg dVQtCarol�in
An Equal Opportunity/Alnrmalive Action Employer-50%Recycledll0%Post Consumer Paper [[[��� r��' l�hs

i
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500127
TO DISCHARGE NON-CONTACT COOLING WATER, COOLING TOWER AND
BOILER BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS 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,
Duke Energy Corporation
is hereby authorized to discharge Hydroelectric Dam Sumps &Non-contact Cooling Water
from a facility located at
Thorpe Hydroelectric Station -
NC Hwy 107 Near NC Hwy 28
Tuckasegee
Jackson County
to receiving waters designated as the Tuckasegee River in subbasin 04-04-02 of the Little
Tennessee River Basin in accordance with the effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This Certificate of Coverage shall become effective August 3, 2012.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 3, 2012.
for ea Wakild, Director
rivision of Water Quality

AAA
NCDENR �� �
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H.Sullins Dee Freeman
Governor Director Secretary
July 8, 2011
Allen Stowe
Duke Energy Carolinas LLC
526 S Chruch St
Charlotte NC 282011002
SUBJECT: Compliance Evaluation Inspection
Thorpe Hydroelectric Station
Permit No: NCG500127
Jackson County
Dear Mr. Stowe:
Enclosed please find a copy of the Compliance Evaluation Inspection Report from
the inspection which Jeff Menzel and I conducted at the facility on June 15, 2011. The
facility was found to be in Compliance with permit NCG500127.
Please refer to the enclosed inspection report for additional observations and
comments. If you or your staff should have any questions, please do not hesitate to
contact me at 828-2964500..
Sincer y
� z
Keith Ha es
Environmental Sr. Specialist
Enclosure
cc: Central Files
Asheville Files
S:\SWP\Jackson\Wastewater\General\NCG50 Noncontact\0127-6.15.11.doc
SURFACE WATER PROTECTION—ASHEVILLE REGIONAL OFFICE
Location:2090 U.S.Highway 70,Swannanoa, NC 28778 O N One Carolina
Phone:[phone]\FAX:[phone]\Customer Service:1-877-623-6748
Internet:www.ncwatemuariv orc LltllCQllff-- -

DnIted States EnNrenmereal Protection Agency FAppmval
pprovetl.
EPA Washington,D.C.20460 2040-0057
Water Com liance Ins ection Re ort expires 8-31-98
Section A: National Data System Coding(i.e.,PCSI
Transaction Corte NPDES yf/molday Inspection Type Inspector Fac Type
1 U.
2J 31 NCG500127 Re1m1e/r0ka6/15 I17 18u 19u 20J
z1111111111111111111111111111111111111111111111116
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 DA -----------------------Reserved---------------
67I 169 701 LJ I 71 u 721 N 73I t 174 75I I I I I I I 180
Section B: FacilityData IJ LlJ
Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also Include Entry TimelDate Permit Effective Date
POTW name and NPDES permit Number)
Thorpe Hydroelectric Station 10:00 AM 11/06/15 09/oa/01
NC Hwy 107 Near NC Hwy 28 Exit TimelDate Permit Expiration Date
Tuckaeegee NC 29783 11:10 AM 11/06/15 12/07/31
Name(s)of Ornate Representative(s)/1llles(s)/Phone and Fax Numbers) Other Faculty Data
Name,Address of Responsible Offlcuffifle/Phone and Fax Number
Si.ie Allen Stowe,526 S Chruch St Charlotte NC Contacted
282011002//904-382-4309/9043B29B40 Yen
Section C: Areas Evaluated During Inspection(Check only those areas evaluated)
Pennit E Records/Reports Self-Monitoring Program E Facility Site Review
Effluent/Receiving Waters
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Slgneture(s)of Inspectors) Agency/OfficallehOne and Fax Numbers Date
Jeff Menzel 4 ARO WQ//828-296-4500/ 7 '7- A
Keith H3yhes 9Y1/�(s_ ARO WQ//828-296-4500/ I�
Signature of Management Q A Reviewer Agency,/010ce/Phone and Fax Numbers Date
Roger C Edwards 'Re ARQ WQ//82s-296-4s00/ T $ 2Off
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete.
Page# 1

NPOES ytlmo/day, Inspection Type 1
3I NCG6o0129 I11 12l 11/06/16 I17 19I^I
Section D: Summaryof Finding/Comments(Attach additional sheetsof narrative and checklists as ne ssar )
Duke Energy has some concerns with winter temperatures not always being in accordance with the general
permit. This is due to very cold upstream temperatures and the inabilit�to monitor an adequate distance
below the discharge for the downstream temperature. This concern wi 1 be addressed at the time of the
general permit revision next year.
Record keeping is excellent.
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Page At 2

Permit: NCG500127 Owner-Facility: Thorpe Hydroelectric Station
Inspection Date: 06115aDl l Inspection Type: Compliance Evaluation
Permit Yee No NA NE
(If the present permit expires in 6 months or less). Has the perniltee submitted a new application? ❑ 0 ■ ❑
Is the facility as described in the permit? 0 0 0 ❑
#Are there any special conditions for the permit? 0 0 ■ ❑
Is access to the plant site restricted to the general public? ■ 0 0 ❑
Is the inspector granted access to all areas for inspection? ■ 0 0 ❑
Comment: This general permit expires next year. Since there are some winter
temperature issues with the hydros located in the mountains, this concerned has been
passed along to Central Office permitting staff as a possible change in the"renewed"
version of NCG500000
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? 0 0 ■ ❑
Is sample collected below all treatment unite? ■ 0 0 ❑
Is proper volume collected? ■ 0 0 ❑
Is the tubing clean? 0 0 ■ 0
It is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees Celsius)? Cl 0 ■ 0
Is the facility sampling performed as required by the permit(frequency,sampling hype representative)? ■ 0 0 ❑
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ■ 0 0 ❑
Are the receiving water free of foam other than trace amounts and other debris? ■ 0 0 Cl
If effluent (diffuser pipes are required) are they operating properly? ❑ 0 ■ ❑
Comment:
Upstream/Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit(frequency,sampling type,and sampling location)? ■ 0 D ❑
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? ■ 0 0 0
Is all required information readily available,complete and current? ■ 0 0 D
Are all records maintained for 3 years(lab.mg.required 5 years)? ■ 0 0 0
Are analytical results consistent with data reported on DMRs? 0 0 0 ■
Is the chain-of-custody complete? ❑ 0 0 0.
Page# 3

Parnell: NCG500127 Owner-Facility: Thorpe Hydroelectric Station
Inspection Date: 06/15/2011 Inspection Type: Compliance Evaluation
Record Keeping Yee No NA NE
Dales,times and location of sampling ❑
Name of individual performing the sampling d
Results of analysis and calibration ❑
Dates of analysis ❑
Name of person performing analyses ❑
Transported COCs ❑
Are DMRs complete:do they include all permit parameters? ■ ❑ ❑ ❑
Has the facility submitted its annual compliance report to users and Di ❑ ❑ ■ ❑
(If the facility is=or>5 MGD permitted flow)Do they operate 24/7 with a certified operator on each shift? ❑ ❑ ■ ❑
Is the ORC visitation log available and current? ❑ ❑ ■ ❑
Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ ■ ❑
Is the backup operator certified at one grade less or greater than the facility classification? ❑ ❑ ■ ❑
Is a copy of the current NPDES permit available on site? ! ❑ ❑ ❑
Facility has copy of previous years Annual Report on file for review? ❑ ❑ ■ ❑
Comment: Record keeping is exemplary.
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Page# 4

IV
FORAGE
ti OMd'
°a
A'4* Division of Water Quality/Water Quality Section o,
`' ..r z
NCDENRNational Pollutant Discharge Elimination System ,aaunr
NCG500000/� d'°
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for colI r-sge under General Permit aa`„
NCG500000: Non-contact cooling water, boiler blowdown,cooling tow owdownrcondensate and_.. fd
similar point source discharges � MAR
� ��
(Please print or type) t
1) Mailing address*of ownerloperator: 2012 .
Company Name Duke Energy Carbines,ttc
Owner Name Allen Stowe-water Management
A HEV F '. E .d7}q'ry
Street Address 5265outh Church Street,InteroHlce-EC13K '
City Charlotte StalAiP code zszoz.
Telephone No. (704) 362-43og Fax: (704) 36 1ee9" '•-'- -_
'Address to which all permit correspondence will be mailed
2) Location of facility producing discharge:
Facility Name Thorpe Creek Hydroelectric Station
Facility Contact Keith A.Moore
Street Address 13201 Highway 10]
City Dllleboro State NC ZIP Code 28703
County Jackson
Telephone No. 628 293-5195 Fax: NA
3) Physical location information:
Please provide a narrative description of how to get to the facility(use street names,state road numbers,
and distance and direction from a roadway intersection). From intersection WHwy 441 sand HIM lW In Will turn
lea on Hwy 10]IHeywood Rd Ga 14.5 miles to Hwy 261. Continue on Hwy 10]for 3.1 miles. Station Is on left.
(A copy of a county map or USGS quad sheet Win facility clearly located on the map is required to be submitted with this application)
4) This NPDES permit application applies to which of the following
❑ New or Proposed
❑ Modification
Please describe the modification:
9 Renewal
Please specify existing permit number and original issue date:
5) Does this facility have any other NPDES permits?
9 No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
6) What is the nature of the business applying for this permit? Electric Generation
Page 1 of 4 04105

NCG500000 N.O.I.
7) Description of Discharge:
a) Is the discharge directly to the receiving water? 8 Yes ❑ No
If no, submit a site map with the pathway to the potential receiving waters clearly marked. This
includes tracing the pathway of the storm sewer to the discharge point, if the storm sewer is the only
viable means of discharge.
b) Number of discharge points(ditches, pipes, channels, etc.that convey wastewater from the
property): One
c) What type of wastewater is discharged?Indicate which discharge points, if more than one,
9 Non-contact coaling water Discharge point(s)#: 001
❑ Boiler Blowdown Discharge point(s)M
❑ Cooling Tower BIDwdown Discharge point(s)#:
❑ Condensate Discharge point(s)#:
❑ Other Discharge point(s)#:
(Please describe"Other")
d) Volume of discharge per each discharge point(in GPD):
#1: smaso(m.....1 #2: #3: #4
e) Please describe the type of process(i.e., compressor,A/C unit,chiller, boiler, etc.)the wastewater is
being discharged from, per each separate discharge point(if applicable, use separate sheet):_
Hydroelectric generator
8) Please check the type of chemical added to the wastewater for treatment, per each separate discharge
point(if applicable, use separate sheet):
❑ Biocides Name: Manuf.:
❑ Corrosion inhibitors Name: Manuf.:
❑ Chlorine Name: Manuf.:
❑ Algaecide Name: Manuf.:
❑ Other Name:
Manuf.:
B None
8) If any box in item(8)above, other than none, was checked, a completed Biocide 101 Form and
manufacturers'information on the additive is required to be submitted with the application for the
Division's review.
10) Is there any type of treatment being provided to the wastewater before discharge(i.e., retention ponds,
settling ponds, etc.)? ❑ Yes 9 No
If yes, please include design specifics (i.e., design volume, retention time, surface area, etc.)with
submittal package. Existing treatment facilities should be described in detail. Design criteria and
operational data (including calculations)should be provided to ensure that the facility can comply with the
requirements of the General Permit. The treatment shall be sufficient to meet the limits set by the
general permits.
Note: Construction of any wastewater treatment facilities requires submission of three(3) sets
of plans and specifications along with the application. Design of treatment facilities
must comply with the requirements of 15A NCAC 2H .0138. If construction applies to
this discharge, include the three sets of plans and specifications with this application.
Page 2 of 4
04/05

NCG500000 N.O.I.
11) Discharge Frequency:
a) The discharge is: IR Continuous ❑ Intermittent ❑ SeasonalD
1) If the discharge is intermittent, describe when the discharge will occur:
ii) If seasonal check the month(s)the discharge occurs: ❑ Jan. O Feb. ❑ Mar. ❑ Apr.
❑ May ❑ Jun. ❑ Jul. ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs:
9 Sat. 8 Sun. 9 Mon. 9 Tue. iR Wed. 9 Thu. 9 Fri.
12) Pollutants:
Please list any known pollutants that are present in the discharge, per each separate discharge point(if
applicable, use separate sheet):
13) Receiving waters:
a) What is the name of the body or bodies of water(creek, stream, river, lake, etc.)that the facility
wastewater discharges end up in? If the site wastewater discharges to a separate storm sewer
system (4S), name the operator of the 4S (e.g. City of Raleigh). Tuckasegee River-West Fork
b) Stream Classification: WS-III,B,TR,ORW
14) Alternatives to Direct Discharge:
Address the feasibility of implementing each of the following non-discharge alternatives
a) Connection to a Municipal or Regional Sewer Collection System Not Available
b) Subsurface disposal(including nitrification field, infiltration gallery, injection wells, etc.) Too much flow
c) Spray irrigation Not justifiable, no significant thermal gradient or pollutant load
The alternatives to discharge analysis should include boring logs and/or other information indicating that
a subsurface system is neither feasible nor practical as well as written confirmation indicating that
connection to a POTW is not an option. It should also include a present value of costs analysis as
outlined in the Division's"Guidance Forthe Evaluation of Wastewater Disposal Altematives".
15) Additional Application Requirements:
For new or proposed discharges,the following information must be included in triplicate with this
application or it will be returned as incomplete.
a) 7.5 minute series USGS topographic map(or a photocopied portion thereof)with discharge location
clearly indicated.
b) Site map, if the discharge is not directly to a stream, the pathway to the receiving stream must be
clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
c) If this application is being submitted by a consulting engineer(or engineering firm), include
documentation from the applicant showing that the engineer(Or firm)submitting the application has
been designated an authorized Representative of the applicant.
d) Final plans for the treatment system(if applicable). The plans must be signed and sealed by a North
Carolina registered Professional Engineer and stamped-"Final Design-Not released for construction".
Page 3 of 4 04/05

NCG500000 N.O.I.
e) final specifications for all major treatment components (if applicable). The specifications must be
signed and sealed by a North Carolina registered Professional Engineer and shall include a narrative
description of the treatment system to be constructed.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Carol S.00olsby
Title: Vire President Hydro Fleet
(Signature ottApplicent) Date Signed)
North Carolina General Statute 143-215.6 b(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any
application, record, report, plan or other document filed or required to be maintained under Article 21
or regulations of the Environmental Management Commission implementing that Article, or who
falsifies, tampers with or knowingly renders inaccurate any recording or monitoring device or method
required to be operated or maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by
a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C.
Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more
than 5 years, or both,for a similar offense.)
Notice of Intent must be accompanied by a check or money order for$100.00 made payable to:
NCDENR
Mail three(3)copies of the entire package to:
NPDES Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Final Checklist
This application will be returned as incomplete unless all of the following Items have been
included:
9 Check for$100 made payable to NCDENR
8 3 copies of county map or USGS quad sheet with location of facility clearly marked on map
9 3 copies of this completed application and all supporting documents
❑ 3 sets of plans and specifications signed and sealed by a North Carolina P.E.
9 Thorough responses to items 1-7 on this application
9 Alternatives analysis including present value of costs for all alternatives
Note
The submission of this document does not guarantee the issuance of an NPDES permit
Page 4 of 4
04105

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PERM
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colgan H.Sullins Dee Freeman
Governor Director Secretary
March 9, 2010
Allen Stowe
Duke Energy Carolinas LLC
526 S Chruch St
Charlotte NC 282011002
SUBJECT: Compliance Evaluation Inspection
Thorpe Hydroelectric Station
Permit No: NCG500127
Jackson County
Dear Mr. Stowe:
Enclosed please find a copy of the Compliance Evaluation Inspection Report from
the inspection which I conducted at the facility on February 25, 2010. The facility was
found to be in Compliance with permit NCG500127.
Please refer to the enclosed inspection report for additional observations and
comments. If you have any questions, please do not hesitate to call me at 828-296-4500.
Since ly
��
Keith Haynes Mz
Environmental Sr. Specialist
Enclosure
cc: Central Files
Asheville Files
5dSWRJacksonlWosYewateACenem IWC060 Nonconta0,0'127-02-25-10 doc
SURFACE WATER PROTECTION—ASHEVILLE REGIONAL OFFICE 0
Location:2090 U.S.Highway 70,Swannanoa,NC 28778 r� n ttl�.'a['OI1Ra
Phone:[phone]OMFAX: 828299-7043\Customer Service: 1-877-623-6748 �OthCau !fJ
Internet:..ncwatereuality ora

United States Environmartal Protection Agency Form Approved.
EPA Washington G 20460 OMB N0,2040-0067
Water Compliance Inspection Report Approval expires B-31-98
Section A: National Data System Coding(Le„PCS)
Transaction Code NPDES yr/molday Inspection Type Inspector Fac Type
1 UN 2 L5J 31 NC,500127 11 121 10/02/25 17 10L 19u_ 20J
271 1 1 1 I I I I I I I I I I I I I I I I I IRmI I I I I I I I I I I I I I I I I I I I I
I6
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 CIA -----------------------Reserved----------------------
6]I I69 701J 71ty 72Lm 73L ]4 75I I I 00
Section B: Facility Data
Name end L...US.of Facility Inspected(For Industrial Users discharging to POTW,also include Entry Fram ale Permit Effective Date
POTW name and NPDES permit Number)
Thorpe xydroelectric Station 02:35 PM 10/02/25 07/08/01
NC Hwy 107 Near NC Hwy 28 Exit Time/Dale Permit Expiration Date
Tuckasegee NC 28783 03:30 PM 10/02/25 12/07/31
Name(s)of Onslle Representalive(s)/fitles(s)/Phone and Fax Numbers) Other Facility Data
Keith A Moore///
Name,Address of Responsible Oflicial/ritle/Phone and Fax Number
Jimmie Allen atowe,526 6 Chruch Be Cherlotlte NC Contacted
282011002//904-382-4309/9043829840 yes
Section C: Areas Evaluated During Inspection(Check only those areas evaluated)
Permit 0 Operations&Maintenance N Self-Monitoring Program 0 Facility Site Review
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Signatures)of Inspector(s) AgencylORce/Phone and Fax Numbers Data
Keith Hayneak Ann WQ//828-296-4500/
Signature of Management O A Reviewer Agency/Office/Phone and Fax Numbers Date
Roger C Edwards I l' ARO WQ//82e-296-4500/
EPA Form 3560-3(Rev 9-94)Previous editions are obsolete.
Page# 1

NPOES ytlmo/day Inspection Type 1
3 NCG500127 11 12 lc/02/21 I17 181_1
Section D: Summary or Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
Discussion of the downstream monitoring site lead to a determination that during cold weather, samples are
being collected prior to proper mixing. It was decided that downstream samples could be collected at the
same location as the upstream site for the Tuskasegee Hydro Plant.
I
I
I
i
Page# 2

Permit: NCG500127 Owner-Facility: Thorpe Hydroelecldc Station
Inspection Date: 02125/2010 Inspection Type: Compliance Evaluation
Operations&Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ 0 0 ❑
Does the facility analyze process control parameters,for ex'. MLSS,MORT,Settleable Solids,pH, DO,Sludge 0 0 ■ ❑
Judge,and other that are applicable?
Comment:
Permit Yea No NA NE
(If the present permit expires in 6 months or less). Has the pennittee submitted a new application? ■ 0 0 0
Is the facility as described in the permit? ■ 0 0 0
#Are there any special conditions for the permit? ❑ 0 ■ ❑
Is access to the plant site restricted to the general public? ■ 0 0 ❑
Is the inspector granted access to all areas for inspection? ■ Cl 0 ❑
Comment:
Page# 3

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F.Easley,Governor William G.Ross,Jr., Secretary
Alan W. Klimek,P.E.,Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage ICoCI: NCG500127
(Please print or type)
1) Mailing address'of facility owner/operator:
Company Name Duke Enerav Carolinas, LLC
Owner Name Allen Stowe. Scientist—Water Management
Street Address 526 South Church Street EC13K
City Charlotte StateNC ZIP Code 28202
Telephone Number17041 382-4309 Fax: [phone]
Email address iastoweli4duke-energy.com ! IIJIr� LS
"Address to which all permit correspondence should be mailed FED ) 9 Li
2001 I
2) Location of facility producing discharge: J
FacilityName Thorpe Hydroelectric Station A j' T cugLlry Sec no,V
�rvjr .IoIIA 1 FICE
Facility Contact Keith A. Moore
Street Address NC Highway 107 near NC Highway 28
City Tuckasegee StateNC ZIP Code 28783
County Jackson
Telephone Number(8281 293-5195 Fax: NA
Email address kamoore7aduke-energy com
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? 0 Yes ❑ No
(If no,submit a site map with the pathway to the potential receiving waters clearly marked.This includes tracing the pathway of the
storm sewer to the discharge point,if the storm sewer Is the only viable means of discharge.)
b) Number of discharge outfalls (ditches, pipes, channels, etc. that convey wastewater from the
property): One
c) What type of wastewater is discharged?Indicate which discharge points, if more than one.
0 Non-contact cooling water Outfall(s) #: 001
❑ Boiler Blowdown Outfall (s) #:
Page 1 of 3

NCG500000 renewal application
❑ Cooling Tower Slowdown Out£all(a)#:
❑ Condensate Outfall(a)#:
❑ Other Outfall(s)#:
(Please describe"Other")
d) Volume of discharge per each discharge point(in GPD):
#001: 531,360(max flow) #002: #003: #004
4) Please check the type of chemical [a] added to the wastewater for treatment,per each separate discharge
point(if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑Algaecide ❑Other
0 None
5) If any box in item(4)above [other than None] was checked, a completed Biocide 101 Form and
manufacturers'information on the additive must be submitted to the following address for approval:
NC DENR/DWQ/Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge(i.e.,retention ponds,
settling ponds,etc.)? ❑Yes ®No
(If yes,please include design specifics(i.e.,design volume, retention time,surface area,etc.)with submittal package. Existing
treatment facilities should be described in detail.)
7) Discharge Frequency:
a) The discharge is: 0 Continuous ❑Intermittent ❑Seasonal*
i) If the discharge is intermittent,describe when the discharge will occur:
ii) *Check the months)the discharge occurs: ❑Jan ❑ Feb ❑Mar. ❑Apr in May ❑Jun ❑Jul ❑
Aug. ❑ Sept. ❑ Oct. ❑Nov. ❑Dec.
b) How many days per week is there a discharge?Seven
c) Please check the days discharge occurs: ® Sat. ®Sun. ®Mon. ®Tue. ® Wed. ®Thu. ® Fri.
8) Receiving streari
a) To what body or bodies of water(creek, stream,river,lake, etc.)does the facility discharge wastewater?
If the site discharges wastewater to a separate storm sewer system(4S),name the operator of the 4S
(e.g. City of Raleigh). Tuckasegee River—West Fork
b) Stream Classification: WS-III B TR ORW
Additional Application Requirements:
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copies] with this application or
it will be returned as incomplete.
➢ Site map. If the discharge is not directly to a stream, the pathway to the receiving stream
must be clearly indicated. This includes tracing the pathway of a storm sewer to its
discharge point.
➢ Authorization for representatives.. If this application will be submitted by a consulting
engineer(or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
I certify that I am familiar with the information contained in this application and that to the best of
my knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Carol S. Goolsby
Title: General M,anaeer. Hydra Fleet
c—�.-,YES �4�foxw 1 29 07
(Signature of Applicun U (Date Signed)
North Carolina General Statute 143.215.E b (i) provides that:
Any person who knowingly makes any false statement,representation,or codification In any application,record,report,plan or other document
fled or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article,orwho
falsifies,tampers with or knowingly renders inaccurate any recording or monitcdng device or method required to be operated or maintained under
Article 21 or regulations of the Environmental Management Commission implementing that Article,shall be guilty of a misdemeanor punishable by
a fine not to exceed$25,000,or by Imprisonment not to exceed six months,or by both.(10 U.S.C.Section 1001 provides a punishment by a line
of not more than$26.000 or Imprisonment not more than 5 years,or both,for a similar offense.)
aEaECIEttEaeaaaEaeaaaeaaa
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
asasasaEaaaeaEaeaeaeaea
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

GLENVILLE QUADRANGLE
NORTH CAROLINA 66N✓ „3eye
7.5 MINUTE SERIES (TOPOGRAPHIC) 176-NW
A
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1(a �

Michael F.Easley,Governor
william G.Ross Jr.,Secretary
�� �/'\QG North Carolina Department of Environment and Natural Resources
. ■1 ■ N r Alan W.Klimek,P.E. Director
YDivision of Water Quality
p.�rttshsvill¢'42eglonah©fffdt�e�'�^"4'l
SURFACE WATER PROTECTION t I E-7
January 26, 2007 "`
Mr. Allen Stowe
Duke Energy Corporation
Mail Code EC13K
Post Office Box 1006
Charlotte, North Carolina 28201-1006
SUBJECT: Compliance Evaluation Inspection
Thorpe Hydroelectric Plant
Permit No: NCG500127
Jackson County
Dear Mr. Stowe:
Enclosed please find a copy of the Compliance Evaluation Inspection form from
the inspection conducted on January 23, 2007. Mr. Keith Haynes and I of the Asheville
Regional Office conducted the Compliance Evaluation Inspection. The facility was found
to be in Compliance with permit NCG500127.
Please refer to the enclosed inspection report for additional observations and
comments. If you or your staff have any questions, please call me at 828-296-4500.
Sincerely,
rntal Engineer
Enclosure
cc: Marcus Pitts, Lee Steam Station, P.O. Box 366, Pelzer, SC 29669
Central Files
NPDES Unit
'Asheville Files
NM, Carolina
RtIl1"afJ
2090 D.S.Highway 70,Swannanca,NC 28778 Telephone:[phone] Fax:[phone]D43 Customer Service 1 877 623-6748

Urk.-d States Environmental) ninon Agency
EPA Washington DD 204eo Approved.
No.2040-(05]
Water gom liancelns ectionRe Oft J.�Fm
svaIsuiues8-31-g8
Section A: National Data System Coding(i.e., PCS)
Transacdon Cade NPDES dmo/da
t 21J31 IEC I 0"V I InspectionU 1TYPe Inspector P20 Type
F G'iJn129 11 12I m/E1 1] 18
U
arks
211I I I I I I I I I I I I I I I I I RlemlIII I I I I I I I I I I I I I
6
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671
]oJ ]1U ]2LI ]3W ]4 ]51 I I I I I I lea
Section B: Facility Data
Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also Include Entry Time/Date Permit Effective Data
POTW name and NPDES permit Number)
'Shop i oeleo[ +nAnt Og;SO Aryl U'/OL/23 ./oC/1
^r, x::y 107 rYmmz rvG £'coy ag Exit Tlme/Date Permit Expiration Dale
Tucka.egcea Nc 289f13
:1:30 TN 11/0l./23 .i]/')t/sl.
Name(s)of Onsite Representative(s)/fitles(s)/Phone and Fax Numbers) Other Facility Data
Name,Address of Responsible Ofilda/fide/Phone antl Fax Number !.At -0rvU 1. GQl.3k - r E.Jmxy{ n[].�t. f,➢ �Cta T_yefiteeted
'I a1011 //IC4-3flJ 911 -/
Ye:g
Section C'. Areas Evaluated During Inspection(Check onlythose areas evaluated
Permit ■Operations&Maintenance Records/Re orls
P ■Self-Monitoring Program
Facility Site Review
Section D: Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s)and Signature(.)of Inspector(.) Agency/Office/Phone and Fax Numbers Data
F:z'Lt laino nIL1 Wu//P2t-,J ?9n`-9'i60/
Signature of Management
Q AA Reviewer Agency/Office/Phone and Fax Numbers Date
E:uy N uavte � f " �� H2o Wp/ 9 C '�93nO lit.9ti39/
EPA Form 3560-3 Nev 9-94)Previous editions are obsolete.
Page# 1

NPDES yr/mo/day Inspection Type (cont.) 1
3� DiCG5001.2) 11 12� )1A L,/ 3 17 181-ci
Section D: Summary of Finding/Comments(Attach addItional sheets of narrative and checkfists as necessary)
Duke Energy's Thorpe Hydroelectric Powerhouse consists of a pinstock to the powerhouse, powerhouse
generation equipment, central powerhouse sump and tailrace. The tailrace discharges to Shoal Creek. The
plant has permitted discharges of generator thrust bearing cooling water and central powerhouse sump.
Mr. Keith Haynes and Mr. Larry Frost performed the inspection. The facility appeared to be well maintained
and operating properly. There were no un-permitted discharges noted during the inspection.
The purpose of the permit is to protect the receiving stream; therefore, the inspectors recommend that
Upstream, Effluent and Downstream sampling points be re-evaluated for this facility. The recommended
upstream sampling site should be upstream of the tailrace discharge, the effluent site from the tailrace and
the downstream at a predetermined (safe access) site downstream of the tailrace discharge point to the
stream.Possible sites were discussed during the inspection; it is recommended that these sites be
established by written policy.
Once the sampling sites are established, then the monitoring requirements and monitoring frequency for
each site should re-evaluated.
The proper reporting of flow from the powerhouse was discussed at length, during the inspection. Since
monitoring data is not required to be submitted to the State, the inspectors recommend that Duke Energy
use common units of measure for this type industry (examples discussed were; CFS and MGD, however
some other unit may be more appropriate) with regards to flow. If you should have any questions regarding
this issue please contact one of the inspectors.
Finally, a special word of thanks to Mr. Marcus Pitts for his assistance during the inspection.
I
i
Page# 2

Permit: NGG500127 Owner-Facility: Tharp.Hydmeleclrlc Plant
Inspection Date: 01/23/2007 Inspection Type: Compliance El.o.fian
Operations 6_Maintntionance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? IN 0 0 0
Does the facility analyze process control parameters,for ex:MLSS, MCRT, Settleable Solids,pH, DO, Sludge D D ■ D Judge,and other that are applicable?.
Comment:
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the pennittee submitted a new application? D D M D
Is the facility as described in the permit? Is D 0 Cl
At Are there any special conditions for the permit? 0 0 M 0
Is access to the plant site restricted to the general public? N D D Cj
Is the inspector granted access to all areas for inspection? ■ D D 0
Comment:
Page# 3

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F.Easley,Governor William G. Ross,Jr., Secretary
Alan W. Klimek,P.E., Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500127
(Please print or type)
1) Mailing address' of facility owner/operator:
Company Name Duke Energy Carolinas LLC
Owner Name Allen Stowe. Scientist—Water Management
Street Address 526 South Church Street EC13K
City Charlotte StateNC ZIP Code 28202
Telephone Number(7041 382-4309 Fax: [phone]
Email address iastowe(aikluke-enerev corn
Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Thorne Hydroelectric Station
Facility Contact Keith A. Moore
Street Address NC Highway 107 near NC Highway 28
City Tuckasegee StateNC ZIP Code 28783
County Jackson
Telephone Number(8281 293-5195 Fax: N/A
Email address kamoore'raduke-enerev corn
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? ® Yes ❑ No
(If no,submit a site map with the pathway to the potential receiving waters clearly marked.This includes tracing the pathway of the
storm sewer to the discharge point,if the storm sewer is the only viable means of discharge.)
b) Number of discharge outfalls (ditches, pipes, channels, etc, that convey wastewater from the
property): One
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
®Non-contact cooling water Outfall(s) 111001
❑ Boiler Blowdown Outfall (a) ti:
Page 1 of 3

NCG500000 renewal application
❑ Cooling Tower Blowdown Outfall(a)#:
❑ Condensate Outfoll(a)#:
❑ Other Outfall(a)#:
(Please describe"Other")
d) Volume of discharge per each discharge point(in GPD):
#001: 531,360(max. flow) #002: #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment,per each separate discharge
point(if applicable, use separate sheet):
❑ Chlorine ❑Biocides ❑Corrosion inhibitors ❑Algaecide ❑ Other
®None
5) If any box in item(4)above [other than None] was checked,a completed Biocide 101 Form and
manufacturers'information on the additive must be submitted to the following address for approval:
NO DENR/DWQ/Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh,NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge(i.e.,retention ponds,
settling ponds,etc.)? ❑Yes ® No
(If yes,please include design specifics(i.e.,design volume,retention time,surface area,etc.)with submittal package. Existing
treatment facilities should be described in detail.)
7) Discharge Frequency:
a) The discharge is: 0 Continuous ❑Intermittent ❑Seasonal*
0 If the discharge is intermittent,describe when the discharge will occur:
ii) *Check the month(s)the discharge occurs: ❑Jan ❑Feb ❑ Mar. ❑Apr❑ May ❑ Jun ❑Jul ❑
Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑Dec.
b) How many days per week is there a discharge?Seven
c) Please check the days discharge occurs: 0 Sat. 0 Sun. 0 Mon. ®Tue. ® Wed. ®Thu. ® Fri.
8) Receiving stres mis]:
a) To what body or bodies of water(creek,stream,river,lake, etc.)does the facility discharge wastewater?
If the site discharges wastewater to a separate storm sewer system RS), name the operator of the 4S
(e.g. City of Raleigh). Tuckaseeee River—West Fork
b) Stream Classification: WS-IILB.TR.ORW
Additional Application Requirements:
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copiesl with this application or
it will be returned as incomplete.
➢ Site map. If the discharge is not directly to a stream, the pathway to the receiving stream
must be clearly indicated. This includes tracing the pathway of a storm sewer to its
discharge point.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
I certify that I am familiar with the information contained in this application and that to the best of
my knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Carol S. Goolsby
Title: General Manager, Hydro Fleet
D S 4 1/29/07
(Signature of ppliccm (Date Signed)
North Carolina General Statute 143-215.6 b (1) provides that:
Any person who knowingly makes any false statement,representation,or certification In any application,record,report,plan or other document
filed or required to be maintained under Article 21 or regulations of the Environmental Management Commission Implementing that Article,or who
falsities,tampers with or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under
Article 21 or regulations of the Environmental Management Commission Implementing that Article,shall be guilty of a misdemeanor punishable by
a fine not to exceed$25,000,or by imprisonment not to exceed six months,or by both.(18 U.S.C.Section 1001 provides a punishment by a fine
of not more than$25,000 or imprisonment not more than 5 years,or both,for a similar offense.)
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This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
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Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross,Jr.,Secretary
Alan W. Klimek, P.E.,Director
November 15,2006
Allen Stowe
Duke Energy Corporation
P.O. Box 1006 [EC131Q
Charlotte,NC 28201-1006
Subject: NPDES Permit NCG500000 renewal
Certificate of Coverage(CoC)NCG500127
Thorpe Hydroelectric Plant
Jackson County
Dear Permittee:
The facility listed above is covered under NPDES General Permit NCG500000. NCG500000 expires
on July 3l,2007. Federal(40 CPR 122.41).and North Carolina(15A NCAC 2H.0105(e))regulations require
that permit renewal applications must be filed at least 180 days prior to expiration of the current permit. If
you have already mailed a renewal request,you may disregard this notice.
To satisfy this requirement,the Division must receive a renewal request postmarked no later than
Febrvary 1. 2007. Failure to request renewal by this date may result in a civil penalty assessment. Larger
penalties may be assessed depending upon the delinquency of the request. This renewal notice is being sent
well in advance of the due date so that you have adequate time to prepare your application.
If any discharge previously covered under NCG500000 will occur after July 31,2007, the
CoC must be renewed. Discharge of wastewater without a valid permit would violate North Carolina
General Statute 143-215.1; unpermitted discharges of wastewater may be assessed civil penalties of up to
$25,000 per day.
If all discharge has ceased at your facility and you wish to rescind this CoC [or if you have other
questions],contact me at the telephone number or a-mail address listed below.
Sincerely,
A �- vw �
Charles H. Weaver,Jr.
NPDES Unit -
cc: Central Files
III 11 I i
NPDES File
I
l
1617 Mail Service Center,Raleigh,North Carolina 27699-1617 - _ AnB
512 North Salisbury Street,Raleigh,North Carolina 27604 N clAhCarO11Ha
Phone: [phone],extension 511/FAX [phone]/charles.weaver®ncmail.net Natm p/f
An Equal Cpponunity/Affirmative Action Employer—50%RecycleNlO%Post Consumer Paper K66 !{/Kl``((✓N

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l® nergy® 400 South Tryon St. _.. .
Charlotte, NC 28285
Mailing Address:
PO&a 1007.
Charon,, NC 28201-1007
cucxose.
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May 11, 2006
L is MAY 15 2t;06
Ms. Coleen Sullins I ;'
Permits and Engineering Unit
North Carolina Department of Environmental, { —
Jl
Health and Natural Resources r •^- > Y—_J
Division of Water Quality .�..-
1617 Mail Service Center -Raleigh, NC 27699-1617 -
Re: Delegation of Authority-Signatures on Reports and Requested Information
Duke Energy NPDES Permitted Stations
Dear Ms. Sullins:
Federal Regulation 40 CFR 122.22, as well as Part II of Duke Energy's NPDES permits, specifies
that all reports required by NPDES permits and other information requested by the permit issuing
authority shall be signed by a principal executive officer of at least the level of Vice President or a -
duly authorized representative. I hereby authorize the Site Production Manager the authority to
sign all reports and requested information related to the permits specified in the attached list
If you have questions or need additional information, you may contact Allen Stowe at 704-382-
4309.
Sincerely,
M' hell �
ice President
Environment, Health and Safety
/phs _
Attachment
xc: Rex Gleason, NCDENR, Mooresville, NC
Steve Mauney, NCDENR,Winston-Salem, NC
David Goodrich, NCDENR,Raleigh, NC
LF'66rest Westall, NCDENR,Asheville, NC
www.duke-ene,,,rom

Permits Currently Held:
Allen Steam Station- NC0004979
Belews Creek Steam Station-NC0024406
Belews Creek Steam Station-WO0005873
Belews Creek Steam Station Flyash Landfill Permit#85-03
Buck Steam Station - NC0004774
Cliffside Steam Station- NC0005088
Dan River Steam Station.-NC0003468
Lincoln Combustion Turbine Station -NC0080711
Marshall Steam Station-NC0004987
Marshall Steam Station Flyash Landfill Permit#18-04
Riverbend Steam Station-NC0004961
Bridgewater Hydro Station-NCG500102
Cowans Ford Hydro Station-NCG500139
Lookout Shoals Hydro Station - NCG500120
Mountain Island Hydro Station-NCG500131
Oxford Hydro Station- NCG500119
Rhodhiss Hydro Station- NCG500108
Tuxedo Hydro Station-NCG500110
Bear Creek Hydro Station—NCG500124
Bryson Hydro Station—NCG500129
Cedar Cliff Hydro Station—NCG500125
Mission Hydro Station—NCG500128
Nantahala Hydro Station— NCG500136
Tennessee Creek Hydro Station—NCG500123
Thorpe Hydro Station—NCG500127
Tuckaseegee Hydro Station—NCG500126
1

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor' NCDENR
William G. Ross Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director NORTH CAROUNA DERARTMENT or
ENVIRONMENT AND NAL,Rt'RE5oyRCE5
11/26/2001
THOMAS D SMITHERMAN -
NANTAHALAP&L-THORPE HYDRO PLT
301 NP&L LOOP RD
FRANKLIN, NC 28734
Subject: NPDES Wastewater Permit Coverage Renewal
Nantabala P&1-thorpe Hydro PR
CDC Number NCG500127
Jackson County
Dear Permittee:
Your facility is currently covered for wastewater discharge under General Permit NCG500000. This permit expires
on July 31,2002. Division of Water Quality(TWO)staff is in the process of rewriting this permit with a
scheduled reissue in the summer of 2002. Once the permit is reissued,your facility would be eligible for continued
coverage under the reissued permit.
In order to assure your continued coverage under the general permit,you must apply to the DWQ for renewal of
your permit coverage. To make this renewal process easier,we are informing you in advance that your permit
coverage will be expiring. Enclosed you will find a general permit coverage renewal application form. This
will serve as your application for renewal of your permit coverage. The application must be completed and
returned with the required information by February 01,2002 in order to assure continued coverage under the
general permit.There is no renewal fee associated with this process. Yom facility will be invoiced for the annual
permit fee at a later date.
Failure to request renewal within this time period may result in a civil assessment of at least$250.00. Larger
penalties may be assessed depending on the delinquency of the request. Discharge of wastewater from your facility
without coverage under a valid wastewater NPDES permit would constitute a violation of NCGS 143-215.1 and
could result in assessments of civil penalties of up to$10,000 per day.
I£the subject wastewater discharge to waters of the state has been terminated,please complete the enclosed
rescission request form. Mailing instructions are listed on the bottom of the form. You will be notified when the
rescission process has been completed.
I£you have any questions regarding the permit coverage renewal procedures please contact the Asheville Regional
Office at 828-251-6208 or Delonda Alexander of the Central Office Stormwater Unit at(919)733-5083,ext.584
Sincerely,
Bradley Bennett,Supervisor
Stormwater and General Permits Unit
cc: Central Files
Stormwater and General Permits Unit Files
Asheville Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor NCDENR
William G. Ross Jr., Secretary
Alan W. Klimek, P.E., Director NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RE50URCE5
July 26,2002
THOMAS D SMITHERMAN
THORPE HYDROELECTRIC PLANT
301 NP&L LOOP RD MAIL CODE EC11E
FRANKLIN, NC 28734
Subject: Reissue-NPDES Wastewater Discharge Permit
Thorpe Hydroelectric Plant
COC Number NCG500127
Jackson County
Dear Permittee:
In response to your renewal application for continued coverage under general permit NCG500000,the Division of
Water Quality(DWQ)is forwarding herewith the reissued wastewater general permit Certificate of Coverage
(COC). This COC is reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between the state of North Carolina and the U.S.Environmental Protection Agency,
dated May 9, 1994(or as subsquently amended).
The following information is included with your permit package:
* A copy of the Certificate of Coverage for your vestment facility
* A copy of General Wastewater Discharge Permit NCG500000
* A copy of a Technical Bulletin for General Wastewater Discharge Permit NC0500000
Your coverage under this general permit is not transferable except after notice to DWQ. The Division may require
modification or revocation and reissuance of the Certificate of Coverage. This permit does not affect the legal
requirements to obtain other permits which may be required by DENR or relieve the permittee from responsibility
for compliance with any other applicable federal,state,or local law rule,standard,ordinance,order,judgment,or
decree.
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
and General Permits Unit at(919)733-5083,ext.578
Sincerely,
for Alan W.Klimek,P.E.
cc: Central Files
Stormwater&General Permits Unit Files
Asheville Regional Office
1617 Mail Service Center, Raleigh,North Carolina 27699-1617 Telephone [phone] FAX [phone]
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State of North Carolina ( A
1
Department of Environment, YW
Health and Natural Resources •
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary 1[--)EH N FR
A. Preston Howard, Jr., P.E., Director July24, 1997
Thomas D. Smithennan
Nantahala Power & Light Company
301 NP&L Loop Road
Franklin,NC 28734
Subject: Certificate of Coverage No.NCG500127
Renewal of General Permit
Thorpe Hydro Station
Jackson County
Dear Permittee
In accordance with your application for renewal of the subject Certificate of Coverage,the Division is forwarding
the enclosed General Permit. This renewal is valid until July 31,2002. 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 December 6,1983. If any parts,measurement
frequencies or sampling requirements contained in this permit are unacceptable to you,you have the right to request
an individual permit by submitting an individual permit application. Unless such demand is made,this certificate
of coverage shall be final and binding.
The Certificate of Coverage for your facility is not transferable except after notice to the Division. Use the enclosed
Permit Name/Ownership Change form to notify the Division if you sell or otherwise transfer ownership of the
subject facility. The Division may require modification or revocation and reissuance of the Certificate of Coverage.
If your facility ceases discharge of wastewater before the expiration date of this permit,contact the Regional
Office listed below at(704)251-6208. Once discharge from your facility has ceased,this permit may be rescinded.
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,Coastal Area Management Act or any other Federal or Local
governmental permit that may be required.
If you have any questions concerning this permit,please contact the NPDES Group at the address below.
Sincerely,
4n-�--4, �
'.�d'✓ A.Preston Howard,Jr.,P.E.
cc: Central Files 6_
Asheville Regional Office
NPDES File
Facility Assessment Unit
uz �
P.O. Box 29535,Raleigh,North Carolina 27626-0535 [phone] FAX[phone] p&e®dem.ehnr.state.nc.us
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r'�%TE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO, NCG500000
CERTIFICATE OF COVERAGE NO. NCG500127
TO DISCHARGE NON-CONTACT COOLING WATER,COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING WATERS ASSOCIATED WITH
HYDROELECTRIC OPERATIONS, AND SIMILIAR WASTEWATERS 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,
Nantahala Power & Light Company
is hereby authorized to discharge
cooling water and other waters associated with hydroelectric operations
from a facility located at
Thorpe Hydro Station
NC Highway 107 Near NC Highway 281
Tuckasegee
Jackson County
to receiving waters designated as subbasin 40402 in the Little Tennessee River Basin
in accordance with the effluent limitations,monitoring requirements,and other conditions set forth
in Parts I,II, III and IV of General Permit No.NCG500000 as attached.
This certificate of coverage shall become effective August 1, 1997.
This certificate of coverage shall remain in effect for the duration of the General Permit.
Signed this day July 24, 1997.
-4. .1
/r �A. Preston Howard,Jr., P.E., Director
I' Division of Water Quality
By Authority of the Environmental Management Commission

C � 1
1
State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality r
James B. Hunt, Jr., Governor r 1�
Jonathan B. Howes, Secretary p E H N R
A. Preston Howard,Jr., P.E., Director
t
May 2, 1997
Mr. Norwood Davis MAY q i'97
Duke Power Company .,
422 South Church Street Idi nii`
Charlotte, NC 28242
Dear Mr avis:
Subject: Thorpe Reservoir(Lake Glenville)watershed water quality management.
On April 10, 1997 the Environmental Management Commission (EMC) adopted a water quality
management strategy to help ensure the protection of Thorpe Reservoir's (Lake Glenville)excellent
water quality. The management strategy includes the designation of Thorpe Reservoir,and two of
its tributaries, Hurricane Creek and Laurel Branch,as High Quality Waters (HQW).
The HQW management strategy adopted by the EMC for the Thorpe Reservoir watershed does not
include any requirements related to the use of the lake for hydroelectric proposes. It does include
requirements for wastewater dischargers and more stringent sedimentation and erosion control.
The sedimentation and erosion control requirements,as implemented by the Division of Land
Resources, may be beneficial to your hydroelectric operations.
I have enclosed a copy of the adopted water quality management strategy for Thorpe Reservoir. If
you have any questions related to the HQW designation and management strategy,please feel free
to call me at(919)733-5083,extension 500,or Liz Kovasckitz of my staff at extension 572.
Sincerel ,
eve Tedder, Chief
Water Quality Section
Enclosures
cc: Liz Kovasckitz,DWQ
Forrest Westall,DWQ ARO
J
Y
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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l � t ,
15 A NCAC 2B .0224 is proposed for amendment as follows:
.0224 HIGH QUALITY WATERS
High Quality Waters (HQW)are a subset of waters with quality higher than the standards and are
as described by 15A NCAC 2B .0101(e)(5). The following procedures shall be implemented in
order to implement the requirements of Rule.0201(d)of this Section.
(1) New or expanded wastewater discharges in High Quality Waters shall
comply with the following:
(a) Discharges from new single family residences shall be prohibited. Those
existing subsurface systems for single family residences which fail and must discharge
shall install a septic tank, dual or recirculating sand filters,disinfection and step aeration.
(b) All new NPDES wastewater discharges(except single family residences)
shall be required to provide the treatment described below:
(i) Oxygen Consuming Wastes: Effluent limitations shall be as follows:
BOD5=5 mg/l,NH3-N=2 mg/1 and DO=6 mg/l. More stringent limitations shall be
set,if necessary, to ensure that the cumulative pollutant discharge of
oxygen-consuming wastes shall not cause the DO of the receiving water to drop more
than 0.5 mg/1 below background levels, and in no case below the standard. Where
background information is not readily available,evaluations shall assume a percent
saturation determined by staff to be generally applicable to that hydroenvironment.
(ii) Total Suspended Solids: Discharges of total suspended solids (TSS)shall
be limited to effluent concentrations of 10 mg/l for trout waters and PNA's, and to 20
mg/l for all other High Quality Waters.
(iii) Disinfection: Alternative methods to chlorination shall be required for
discharges to trout streams,except that single family residences may use chlorination if
other options are not economically feasible. Domestic discharges are prohibited to SA
waters.
(iv) Emergency Requirements: Failsafe treatment designs shall be employed,
including stand-by power capability for entire treatment works, dual train design for all
treatment components,or equivalent failsafe treatment designs.
(v) Volume: The total volume of treated wastewater for all discharges
combined shall not exceed 50 percent of the total instream flow under 7Q10 conditions.
h (vi) Nutrients: Where nutrient overenrichment is projected to be a concern,
a
appropriate effluent limitations shall be set for phosphorus or nitrogen,or both.
(vii) Toxic substances: In cases where complex wastes (those containing or
potentially containing toxicants)may be present in a discharge,a safety factor shall be
applied to any chemical or whole effluent toxicity allocation. The limit for a specific

F) (,
chemical constituent shall be allocated at one-half of the normal standard at design
conditions.Whole effluent toxicity shall be allocated to protect for chronic toxicity at an
effluent concentration equal to twice that which is acceptable under design conditions.
In all instances there may be no acute toxicity in an effluent concentration of 90 percent.
Ammonia toxicity shall be evaluated according to EPA guidelines promulgated in
"Ambient Water Quality Criteria for Ammonia- 1984";EPA document number
440/5-85-001; NTIS number P1385-227114;July 29, 1985 (50 FR 30784) or"Ambient
Water Quality Criteria for Ammonia(Saltwater) - 1989';EPA document number
44015-88-004;NTIS number PB89-169825. This material related to ammonia toxicity
is hereby incorporated by reference including any subsequent amendments and editions
and is available for inspection at the Department of Environment, Health,and Natural
Resources Library, 512 North Salisbury Street,Raleigh, North Carolina. Copies may
be obtained from the National Technical Information Service, 5285 Port Royal Road,
Springfield, Virginia 22161 at a cost of forty-seven dollars ($47.00):.ti _
(c) All expanded NPDES wastewater discharges in High Quality Waters shall
be required to provide the treatment described in Sub-Item (1)(b) of this Rule,except for
those existing discharges which expand with no increase in permitted pollutant loading.
(2) Development activities which require an Erosion and Sedimentation Control
Plan in accordance with rules established by the NC Sedimentation Control Commission
or local erosion and sedimentation control program approved in accordance with 15A
NCAC 4B .0218, and which drain to and are within one mile of High Quality Waters
(HQW) shall be required to follow the stormwater management rules as specified in 15A
NCAC 2H .1000. Stormwater management requirements specific to HQW are described in
15A NCAC 2H .1006.
(3) Ling of Waters Classified HOW with Snegifte Actions Waters classified
as HOW with specific actions to protect exceptional water quality are listed as follows:
Thom Reservoir R ittle Tennessee River Basin,Index No 2-79-23-(1)l including all of
its tributaries shall be manng d with respect to watewater discharges through Subpart(1)
of this rule Subpart(2)of this rule shall not be applied in association with this HOW
because of the local government implementation of WS III stormwater management
requirements.
If an applicant objects to the requirements to protect high quality waters and believes degradation is
necessary to accommodate important social and economic development,the applicant may contest
9 these requirements according to the provisions of G.S. 143-215.1(e) and 15013-23.
History Note: Authority G.S. 143-214.1; 143-215.1; 143-215.3(a)(1);
Eff. October 1, 1995;
Amended Eff. August 1. 1998: April 1, 1996.

OFFICE OF
COMMISSIONERS OF JACKSON COUNTY
BOARD OF COMMISSIONERS i)I GRINDSTAFF cove ROAD
T.C. LEWIS. Chairman and Cuenty Manager S1'I_V%. NORTH CAROLINA '_%779
GEORGE HOOPER, Vice Chairman �. [phone]
J.K. COWARD, JR. FAX [phone]
CHARLES ELDERS
PADGETT McCOY
January 23, 1995
Secretary Jonathan B. Howes
Department of Environment, Health, and
Natural Resources
512 North Salisbury
Raleigh, North Carolina 27604
Dear Mr. Secretary:
On October 20, 1994, the Jackson County Commissioners adopted a resolution
detailing the county's position in regard to a proposal to reclassify Lake
Thorpe and a tributary, Hurricane Branch, as High Quality Waters. Since
that time, a new Board of Commissioners has been elected and sworn in.
This letter is official confirmation that the county's position on reclas—
sification of Lake Thorpe to HOW remains unchanged, and this new board is in
full concurrence with the October 20, 1994 resolution. We feel that the
course of action suggested in the resolution is a reasonable, practical
alternative to the state proposal.
Please give this position serious consideration.
Sincerely,
T. C. Lewis, Chairman
Jackson County Commissioners
TCL:ms
cc: Dr. David Moreau
(,Forrest Westall: ,
L�' I
AN EQUALOPPORTUNIMAIFIRMAI'IVE ACTION EMPLO)'E.R

COMMISSIONERS OF JACKSON COUNTY
Sylva, North Carolina 28779
DARLENE FOX
WAYNE HOOPER COUNTY ACLOUNTANI
COMMISSIONER OF FINANCE 4 I.
_ W. PAUL HOLT, JR.
GEORGE HOOPER 11 Aqpq ® 11 COUNTY ATTORNEY
BILL SMITH to HFRE ®8
PART-TIME COMMISSIONERS 4
RESOLUTION FOR THE PROTECTION OF WATER QUALITY IN THORPE RESERVOIR
WHEREAS, the North Carolina Environmental Management Commission
(EMC) is currently considering a proposal to reclassify Lake Thorpe and a
'tributary, Hurricane Branch, in Jackson County as High Quality Water; and
WHEREAS, Jackson County has established and is administering a
WATERSHED PROTECTION ORDINANCE which includes the aforementioned waters; and
WHEREAS, the proposed EMC regulations would require larger mini—
mum lot sizes and stormwater controls than in the remainder of the watershed,
without providing greater effluent limitations on the four major cributaries
of the lake; and -
WHEREAS, the jurisdictional overlap between local and state regu—
lations will result in chaos with the general public; and
WHEREAS, it is this Commissions belief that the minimum Lot sizes
in the existing watershed ordinance provides at least as much protection to
water quality as the proposed rules;
NOW THEREFORE BE IT RESOLVED that the Jackson County Board of
Commissioners requests the EMC to more stringently regulate wastewater dis—
charge permits on all tributaries of Lake Thorpe , consistent with require—
ments of HQW watersheds, while Jackson County regulates minimum lot require—
ments under our watershed ordinance as a WS III.
ADOPTED this the 20th day of October; 1994.
ayne Hoo r, Chairman o£ tne, Board
ATTESTS
Darlene Fox, ark to the Board
401 Grindstaff Cove Road, Sylva, North Carolina 28779
Telephone: ....[phone]
FAX: [phone]

State of North Carolina
Department of Environment,
Health and Natural Resources &T4 • '
Division of Water Quality f
James B. Hunt, Jr., Governor Ar�7 sk
Jonathan B. Howes, Secretary ID FEE N R
A. Preston Howard, Jr., P.E., Director
July 17, 1997
Mr.Dan Robinson, Chairman
Jackson County Board of Commissioners
401 Grindstaff Cove Road
Sylva, NC 28779
Dear Chairman Robinson:
Thank you for providing me with a copy of the resolution that the Jackson County Board of
Commissioners adopted on May 5, 1997 regarding the Thorpe Reservoir High Quality Waters
(HQW) designation. After having read the resolution,it appears that there has been some
misunderstanding of what the April 10, 1997 Environmental Management Commission's (EMC)
decision will mean to the Thorpe Reservoir watershed.The EMC voted to apply management
strategy Option Number One (alternative HQW Rule) to the watershed. I would like to clarify what
their decision will and will not do, and hopefully alleviate some of the concerns that Jackson
County has regarding this issue. "
As you are aware,in 1989, the Division of Water Quality received a request to reclassify Thorpe
Reservoir as High Quality Waters. In accordance with North Carolina general statutes, a public
hearing was held August 18, 1994. Based on a resolution received from Jackson County,
comments from the public, and consideration of the relevant issues, the EMC directed Division of
Water Quality staff to proceed back to rule making with two new management strategy options.
Neither one of the new options included the original proposed HQW designation. Both-of the new
options took into consideration Jackson County's October 20, 1994 resolution which requested
that the EMC "mote stringently regulate wastewater discharge permits on all tributaries of Lake
Thorpe,consistent with requirements of HQW watersheds, while Jackson County regulates
minimum lot requirements under our watershed ordinance as a WS III."
Attached is a chart which details the two management strategy options that went to public hearing
in 1996.The two options are very similar:
• Both Option Number One (Alternative HQW Rule) and Option Number Two(Water Quality
Management Plan) apply HQW wastewater discharge requirements throughout the watershed.
• Both Option Number One and Option Number Two keep the W S-III stormwater management
requirements already in place.
The existing stormwater management requirements would continue to be implemented by Jackson
County.There are no new stormwamr management requirements associated with Option Number
One.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50/recycled/10%post-consumer paper

The differences between management strategies option Number One and Option Number Two are
as follows:
• Under Option Number One,more stringent sedimentation and erosion control practices in areas
within one mile and draining to the HQW designated waters (Thorpe Reservoir,Hurricane
Creek and Laurel Branch)would apply to those development projects disturbing more than one
acre.The one acre requirement refers to actual land area disturbed. The sedimentation and
! erosion control requirements are implemented by the Division of Land Resources.
The Division of Land�,tesources currently requires sedimentation and erosion control measures on
all land disturbances greater than one acre.If sedimentation and erosion control measures are
required in an area that is classified as HQW, then more stringent sedimentation and erosion
control practices, such as stricter timelines for establishing ground cover and detailed specifications
on sedimentation basins,would apply.
• Option Number One attaches the HQW classification tag to Thorpe Reservoir,Hurricane
Creek, and Laurel Branch.
This does not mean that any additional HQW requirements will be applied to these waters,nor
does it mean that this management strategy can be modified without public notice in the future.Any
additions or changes to management strategy Option Number One would require going through the
rule-making process.
The adoption of management strategy Option Number One will not affect tree farmers or other
silvicultural activities.Nor will it have an effect of any kind on agricultural activities or the use of
the lake for hydroelectric power.
The Division of Water Quality supports the EMC's April 10, 1997 decision to apply management
strategy Option Number One to the Thorpe Reservoir watershed.The EMC did both take into
consideration, and honor,Jackson County's request to allow the county to continue implementing
the WS-III stormwater requirements by not requiring HQW stormwater management.This has
been true since the EMC directed staff to proceed back to rule making with the two alternative
management strategy options in 1994.The EMC chose to apply management strategy Option
Number One because they felt that it was very important to address sedimentation, a major source
of pollution in the watershed.The only effect of applying Option One is that it will provide
additional controls preventing sedimentation pollution problems,thus helping to protect the water
quality of one of the best lakes in North Carolina.
The application of management strategy Option Number One is proposed to become effective on
August 1, 1998.If you have any questions or comments,please feel free to call me at(919)733-
i
5083, extension 203.
Sinc rely,
A. Preston Howard, 6PE
cc: Environmental Management Commission Members
Steve Tedder,DWQ, Chief,Water Quality Section
Liz Kovasckitz,DWQ, Classifications and Standards
1
{ Forrest Westall,DWQ Asheville Regional Office
Thorpe Reservoir Public Hearing Attendees

y^ IUI
FEDERAL ENERGY REGULATORY COMMISSION / Y"
ATLANTA REGIONAL OFFICE
Parkridge 85 North Building
3125 Presidential Parkway - Suite 300
Atlanta, Georgia 30340
AUG 0 81996
Project 2686 - NC
Mr. Thomas D. Smitherman AUG 12 1996
Vice President
Production, Transmission, WATER t2UALI
and DistributionjL'z$�(
Nantahala Power and Light Company
Post Office Box 260 "
Franklin, North Carolina 28734 Air, 19 � 6
Dear Mr. Smitherman:
ASWATER Uklry SECTION
The annual operation inspection of Project No. 2 otl OFI
of the Thorpe (NC00378) and Tuckasegee (NC00337) developments is
scheduled for August 27-28, 1996. Mr. William H. Duke, Atlanta
Regional Office staff engineer, will meet your representative(a) at
the Thorpe .powerhouse at 1 p.m. on Tuesday, August 27, 1996. An
itinerary for the inspection will be arranged at that time. Please
have the following project information available for review for the
report period: A copy of the most current in-house inspection
report, scheduled and unscheduled unit outages, date of annual
maintenance, date and maximum flow, emergency action plan test date
and training date, and any other significant events that occurred
during the report period.
A copy of the Project Compliance Summary from the Hydropower
License Compliance Tracking System accompanied our February 6, 1996,
letter. This summary describes the status of actions to be taken
by Nantahala Power and Light Company to comply with the requirements
of the . project license and Commission Rules and Regulations.
Following the inspection, the current status of required actions
will be reviewed with you or your staff, and any questions will be
discussed at that time.
WAIER
REQ ETMS6pom I
AUG 15 1996
0PERAT10t4A 00AN H

Mr. Thomas D. Smitherman -2-
You were furnished a letter dated March 2, 1994, stating each
project owner is responsible to ensure the project is in compliance
with la CFR, Section 12.43, requiring any power or communication
line or gas pipeline that is located over, under, or in project
waters not to obstruct navigation for recreational or commercial
purposes or otherwise endanger public safety. Minimum clearances
of power and communication lines should be in accordance with
the National Electrical Safety Code. Mr. Duke will discuss
the assessment during the inspection and indicate any followup
actions required.
During the inspection, it may be requested that any of
the spillway gates of the project be operated using standby.
emergency power.
Copies of this letter are being furnished to appropriate
Federal and State agencies. If agency representatives are
interested in accompanying Mr. Duke during the inspection, they are
requested to contact this office at (770) 452-2363, extension 26.
This contact will be the basis of notification should the inspection
schedule require a last minute change.
I erely,
vUJ 64
Robert W. Crisp, p,E,
Director

n
Mr. Thomas D. Smitherman -3-
North Carolina Federal and State Agencies
cc:
Ms. Cherry Green
U. S. Department of the Interior
Fish and Wildlife Service
1875 Century Boulevard, Suite 324
Atlanta, GA 30345
Ms. L. K. (Mike) Gantt
U. S. Fish and Wildlife Service
Fish and Wildlife Enhancement
Post Office Box 33726
Raleigh, NC 27636-3726
Mr. Andreas Mager, Jr.
Assistant Regional Director
National Marine Fisheries Service
Southeast Regional Office
9721 Executive Center Drive
St. Petersburg, FL 33702-2432
Regional Director
Region IV
Environmental Protection Agency
345 Courtland Street, WE
Atlanta, GA 30308
Attn: Mr. Heinz Mueller
. State of North Carolina
Department of Natural Resources
and Community Development
Environmental Management
and Recreation
Post Office Box 27687
Raleigh, NC 27611
Mr. Steve E. Reed
Division of Water Resources
NC Department of Environment,
Health, and Natural Resources
Post Office Box 27687
Raleigh, NC 27611-7687
Mr. Frank McBride
NC Wildlife Resources Commission
Division of Boating and
Inland Fisheries
512 North Salisbury Street
Raleigh, NC 27604-1188
ATTN: Habitat Conservation Program

n n
Mr. Thomas D. Smitherman -4-
Mr. James K. Leumas, P.E.
-
State Dam Safety Engineer
Dept. of Environment, Health,
and Natural Resources
Land Quality Section
Post Office Box 27687
Raleigh, NC 27611-7687

r
State of North Carolina
Department of Environment, IFA
tr
Health and Natural Resources
James B, Hunt,Jr,,GovernorJonathan B. Howes,Secretary r kM Linda Bray Rimer,Assistant Secretary p E H N R
for Environment Protection
January 24, 1997
Honorable T.C.Lewis,Chairman
Jackson County
401 Grindstaff Cove Road
Sylva, NC 28779
Dear Chairman Lewis:
Subject: Thorpe Reservoir Proposed Management Plan (Jackson County,Little Tennessee
River Basin)
Thank you very much for your comments regarding the proposed management plan for the Thorpe
Reservoir watershed. Although members of the Jackson County Board of Commissioners were
not able to attend the public hearing in Cashiers on November 21, 1996,we appreciate your
written comments. I assure you that all comments,whether made verbally at the hearing or
submitted in writing,are part of the public hearing record for the Environmental Management
Commissions (EMC)consideration. They value public input to the rule-making process and are
especially interested in local government comments.
I expect the EMC to deliberate on the Thorpe Reservoir proposal in early 1997. We would be glad
to notify you of the exact date in the event you planned to attend the meeting,otherwise one of my
staff would be pleased to call you with the outcome of the EMC's deliberation.
If you have any questions or if we may be of assistance,please do not hesitate to call Ms.Liz
Kovasckitz of my staff at(919)733-5083,extension 572.
Sincerely,
Linba Rimer
\sP
NEU
Ltz Kovasckrtz, anmn
Lisa Martin,DWQ WSWP
P.O, Box 27687.Raleigh,North Carolina 27611-7687 Telephone [phone] FAX 919-715,3060
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

n
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH
AND NATURAL RESOURCES
REPORT OF PROCEEDINGS FOR A PROPOSED
MANAGEMENT STRATEGY FOR THORPE RESERVOIR
(LAKE GLENVILLE) IN JACKSON COUNTY
PUBLIC HEARING
NOVEMBER 21, 1996
CASHIERS, NORTH CAROLINA

n �
TABLE OF CONTENTS
Page
Summary and Recommendations
Summary
- Background.
- Two Proposed Management Options
- Maps of Proposed Management Strategy Options
- Wastewater Requirements
- Sedimentation/Erosion Control Requirements
- Stormwater Requirements
Public Hearing Process/Comments Received
- Specific Comments Received
Recommendation
- Implications of the Recommended Reclassification
Recommended Amendments to 15A NCAC 2B .0227
Jackson County Resolution
Public Notice
Designation of Hearing Officer
List of People Attending the Hearing
Hearing Officer's Speech
Division of Water Quality Staff Presentation
Written Comments

Page
Appendix
15A NCAC 2B .0224 High Quality Waters Rule
15A NCAC 4B .0024 Design Standards in Sensitive Watersheds
15A NCAC 2B .0215 Fresh Surface Water Quality Standards for Class WS-III Waters
Summary and Recommendations from the August 1994 Hearing
Water Quality Standards for Freshwater Classifications

SUMMARY AND RECOMMENDATIONS
SUMMARY
Background
Thorpe Reservoir (Lake Glenville) is a man-made impoundment of the West Fork Tuckasegee
River in the Little Tennessee River Basin. The lake is located within Jackson County near
Glenville, North Carolina and is used for recreational fishing, swimming and boating. Owned
by Nantahala Power and Light Company, the reservoir also has been used to generate hydro-
electric power since its construction in 1941. A water supply intake several miles downstream
of the lake serves Western Carolina University. Thorpe Reservoir and its tributaries are cur-
rently classified as WS-III. Watersheds designated for water supply use are subject to compre-
hensive rules which protect the quality of that source of water for drinking water supply par-
poses. Under the North Carolina Water Supply Watershed Protection Act of 1989, all local
governments with land use planning jurisdiction in water supply areas are required to adopt
and enforce local water supply watershed protection plans and ordinances.
In 1989, the Division of Water Quality received a request to examine Thorpe Reservoir to
determine whether these waters would qualify for classification as High Quality Waters
(HQW). Subsequent to this request, Thorpe Reservoir was shown to have Excellent water
quality based on studies undertaken by the Environmental Sciences Branch of the Water
Quality Section. A comparison of sample results to state water quality standards shows no
values in excess of the standards, and all designated uses (such as swimming and maintenance
of aquatic life) are supported. Based on the results of water quality studies, Thorpe Reservoir,
Hurricane Creek, and its tributary Laurel Branch qualified for consideration as HQW as
defined in 15A NCAC 2B .0224 (see Appendix page XX).
In accordance with North Carolina general statutes, a public hearing was held August 18,
1994. The proposed HQW reclassification generated substantial public interest and comment
in the community surrounding the lake. Based on public comments received and consideration
of the relevant issues, the Environmental Management Commission (EMC) directed Division
of Water Quality staff to proceed back to rule making with the two options described below.
Neither one of these options included the original proposed HQW designation. These options
are summarized in Table 1 below. Although these management strategy options were a direct
result of comments received through the public hearing process, the recommended strategies
differed substantially from the originally proposed strategy. As a result, the proposed
alternative management strategy options needed to go to public notice and hearing to receive
additional public review and comment. The summary and recommendations section from the
August 18, 1994 Thorpe Reservoir public hearing report of proceedings can be found
beginning on page XX of the Appendix.

Table 1. Summary of Two Proposed Options
Option Number One Option Number Two
Location of management HOW rule, Water Quality Man-
agement
strategy in rule: (15A NCAC 2B .0224) Plan, (15A NCAC
2B .0227)
Proposed Classification: Thorpe Res., Hurricane Creek, - Thorpe Reservoir and
all
& Laurel Br. - WS-III HQW tributaries -
WS-III
(proposed); other tributaries (current clas-
sification)
WS-III (current classification)
HQW wastewater Thorpe Reservoir and all Thorpe Reservoir and all
requirements applied to: tributaries tributaries
Div. of Land Resources HQW Within one mile and draining to Not Applicable
sedimentation/erosion control Thorpe Res., Hurricane Creek
requirements applied to: & Laurel Branch
WS-III stormwater control _
requirements applied to: Thorpe Reservoir watershed Thorpe Reservoir
watershed
The Two Proposed Management Options are as Follows:
Option Number One: Alternative HOW Rule
This option proposes to reclassify Thorpe Reservoir (Lake Glenville), Hurricane Creek, and
Laurel Branch as HQW with a special management strategy being applied (see map on page
X). The HQW management requirements associated with wastewater discharges would apply
to the entire watershed. Sedimentation and erosion control requirements for HQW, which are
implemented by the Division of Land Resources, would apply to areas within one mile and
draining to the HQW designated waters. HQW stormwater requirements would not apply, but
rather the existing drinking water supply watershed protection ordinances would continue to
be implemented by the local governments for the entire drainage area.
Option Number Two: Water Quality Management Plan
This option would not apply the HQW supplemental classification to Thorpe Reservoir (Lake
Glenville) and its tributaries, nor would it apply the Division of Land Resources sediments-
tionterosion control requirements associated with the HQW classification (see map on page
X). Wastewater discharge requirements in Option Number Two would be identical to those in

Option Number One; that is, the HQW management requirements associated with wastewater
discharges would apply to the entire watershed. Also, as in Option Number One, HQW
stormwater requirements would not apply and existing drinking water supply watershed
protection ordinances would continue to be implemented by the local governments for the
entire drainage area.
There are two primary differences between these two options and the proposal taken to public
hearing in 1994. One difference deals with wastewater discharge requirements, and the other
with stormwater management requirements. These differences are discussed below.
HQW wastewater discharge requirements would be applied to the entire watershed in the two
revised management strategy options staff was directed to take back out to public hearing,
whereas they would have only applied to those waters designated as HQW in the proposed
reclassification presented two years ago. Under the original proposal, only new or expanded
discharges to the lake, Hurricane Creek and Laurel Branch would have had to provide
advanced treatment. Under the modified scenario, advanced treatment would be required of
new or expanded discharges to all waters in or draining to Thorpe Reservoir. The other major
difference is that, in the 1994 proposal, more restrictive HQW stormwater development
density requirements would have applied to the area within one mile and draining to HQWs.
Under the two revised management strategy options taken back out for public comment, the
HQW stormwater requirements would not apply, but rather Jackson County's WS-III
stormwater development density requirements would continue to be implemented for the
entire watershed.
Wastewater Discharge Requirements
Under the current WS-III classification, industrial wastewater discharges are prohibited and
ten additional numeric water quality standards apply (see Appendix page X for additional
standards). Under both of the proposed management strategy options, new and expanded
discharges must provide advanced treatment. Expanded discharges are those that expand such
that they increase their permitted pollutant loading. The effect of applying either of the
proposed management strategy options is as follows:
A. Discharges from new single family homes are prohibited.
B. The following treatment is required of new or expanded discharges:
1) Oxygen Consuming Wastes: BOD = 5 mg/l; NH3-N = 2 mg/l; and DO = 6 mg/L
2) Total Suspended Solids: 10 mg/l in trout waters; 20 mg/l in all other waters
(Thorpe Reservoir and Laurel Branch do not have the supplemental trout
designation, but Hurricane Creek does).
3) Disinfection: Alternative methods of chlorination will be required for discharges to
trout streams, except that single family residences may use chlorination if other
options are not economically feasible.
4) Emergency Requirements: Failsafe treatment designs will be employed, including

C�
stand-by power capability for entire treatment works, dual train design for all treat-
ment components, or equivalent failsafe treatment designs.
5) Volume: The total volume of treated wastewater for all discharges combined will
not exceed 50 percent of the total instream flow under 7Q10 conditions.
6) Nutrients: Where nutrient overemichment is projected to be a concern, appropriate
effluent limitations will be set for phosphorus or nitrogen, or both.
7) Toxic Substances: In cases where complex wastes (those containing or potentially
containing toxicants) may be present in a discharge, a safety factor will be applied
to any chemical or whole effluent toxicity allocation. The limit for a specific chemi-
cal constituent will be allocated at one-half of the normal standard at design condi-
tions. Whole effluent toxicity will be allocated to protect for chronic toxicity at an
effluent concentration equal to twice that which is acceptable under design condi-
tions. In all instances there may be no acute toxicity in an effluent concentration of
90 percent as measured by the North Carolina 'Pass/Fail Methodology for Deter-
mining Acute Toxicity in a Single Effluent Concentration." Ammonia toxicity will
be evaluated according to EPA guidelines.
Sedimentation/Erosion Control Requirements
Under management strategy Option Number One, Thorpe Reservoir, Hurricane Creek, and
Laurel Branch would be reclassified to include the supplemental HQW classification. Under
this option only, development activities which require a Sedimentation/Erosion Control Plan
in accordance with rules established by the NC Sedimentation Control Commission or an ap-
proved local erosion and sedimentation control program, and which drain to and are within
one mile of HQWs shall be required to follow more stringent erosion and sedimentation con-
trol measures as outlined in 15A NCAC 4B .0024. A copy of this rule can be found on page
X of the Appendix.
Stormwater Requirements
The WS-III Stormwater management requirements already applicable to the Thorpe Reservoir
watershed will not be affected by either of the proposed management options. For Class WS-
III waters, low density and high density development options are available. The Low Density
Option allows development at 2 dwelling units per acre, or 24 percent built upon area, and
requires 30 foot buffers along all perennial waters. Under the High Density Option, develop-
ment may take place with up to 50 percent built upon area with the use of stormwater runoff
controls and 100 foot buffers along perennial streams. Please see 15A NCAC 213 .0215 on
page X of the Appendix for more information on the stormwater requirements applicable to
WS-III waters.
PUBLIC HEARING PROCESS AND GENERAL COMMENTS RECEIVED
In accordance with the general statutes, a public notice of the hearing was published in the

September 16, 1996 edition of the North Carolina.Register. In addition to the required notice,
publication of an announcement of public hearing (see page X) was made in three local news-
papers: The Cashiers Crossroads Chronicle, The Sylva Herald and Ruralite, and The Western
Carolinian. These announcements were also mailed to people who attended and registered at
the August 18, 1994 Thorpe Reservoir public hearing, and various individuals across the state,
including local government and state officials, wastewater dischargers in the affected subbasin,
environmental interest groups, and anyone else who has requested to be placed on the Water
Quality Section's rule-making mailing list. Additionally, a summary of the proposal was pro-
vided to the local media via a press release.
The public hearing was conducted the evening of November 21, 1996. Forty-two citizens reg-
istered for the public hearing, of which 12 requested to make verbal comments. Opening re-
marks were given by the Hearing Officer, followed by a slide presentation of the proposed
management strategy options by Water Quality Section staff. Copies of the Hearing Officer
and staff s presentations begin on page XX. Following the staff presentation, the public was
given the opportunity to comment. One person making comments at the hearing spoke in fa-
vor of implementing management strategy Option One. Of the remaining speakers, ten were
in favor of Option Two, and one spoke in favor of the original High Quality Waters proposal
that was taken to public hearing in 1994.
Written comments on the proposed management strategy options were accepted until Decem-
ber 22, 1996. A total of 13 pieces of correspondence and one petition were received regard-
ing this proposed reclassification. Four letters were in favor of management strategy Option
One, three letters were in favor of Option Two, and six letters were in favor of the original
High Quality Waters proposal. The petition, which included 54 signatures, was in favor of
Option Two. All of the letters and the petition are included in this report beginning on page
XX.
The proposals for managing the water quality in Thorpe Reservoir continue to be very contro-
versial in the community surrounding the lake. In general, seasonal residents are either still in
favor of the original 1994 HQW proposal or Management Strategy Option Number One,
while permanent residents favor Option Number Two.
Specific Comments Received
Comment: Staff would have heard more comments favoring the original HQW proposal, or
Option Number One, bad we held the public hearing during the summer months.
Response: In an attempt to solicit comments from all interested parties, staff sent a copy of
the public announcement which contained information on where to submit written
comments to all persons who attended the first public hearing.
Comment: The Division's reasoning for proceeding back to public hearing with proposed al-
ternative management strategy options was faulty. This comment was based on the

contention that adding HQW stormwater management requirements on top of exist-
ing WS-III stormwater requirements may cause confusion for the regulated com-
munity, when this situation already occurs in a number of cases.
Response: As part of the 1994 public hearing process, staff received a resolution from the
Jackson County Commissioners (page XX of the Appendix) requesting that a
modified management strategy be applied to Thorpe Reservoir instead of the
traditional HQW requirements. The compromise offered by the county contained
two main provisions. First, since Jackson County is currently implementing an
ordinance in compliance with the Water Supply Watershed Protection Act, the
stormwater controls associated with the HQW classification would not be applied
to Thorpe Reservoir. This watershed is currently classified as WS-III, and the
stormwater controls associated with this classification would continue to be
implemented by Jackson County rather than applying the stormwater provisions
associated with HQWs. Second, the HQW wastewater discharge limitations would
be applied to the whole catchment area of Thorpe Reservoir as opposed to applying
them only to those waters classified as HQW. Staffs opinion is that the application
of the recommended alternative strategy can provide water quality protection while
recognizing the existing local water quality protection measures implemented
through the water supply watershed protection program.
Comment: The documented water quality problems are due to sedimentation from
development activities. The HQW designation would afford more protection to the
lake from these sources.
Response: It is true that the HQW designation would require more stringent stormwater
controls within one mile of HQW designated streams, and that projects that
required sedimentation and erosion control plans would have to follow more
stringent erosion and sedimentation control requirements.
Comment: The HQW designation in management strategy Option Number One would restrict
Nantahala Power and Light's ability to perform emergency repairs, delay necessary
maintenance and reduce flexibility in operation. The concern was also expressed
that the HQW tag would restrict the recreational use of the lake.
Response: The HQW management strategy explicitly manages development activities which
are required to obtain a Sedimentation and Erosion Control Plan, and wastewater
discharges. There are no stipulations in the Division's water quality rules that
affect the management or maintenance of hydroelectric facilities. The HQW
classification has no effect on recreational activities other than providing additional
protection to the aquatic resources.
RECOMMENDATION

The Hearing Officer and Director recommend that management strategy Option Number Two
be applied to the Thorpe Reservoir watershed based on water quality data, comments received,
and consideration of the relevant issues. Option Number Two would not apply the HOW sup-
plemental classification to Thorpe Reservoir and its tributaries, nor would it apply the Divi-
sion of Land Resources sedimentationlerosion control requirements associated with the HQW
classification. HQW management requirements associated with wastewater discharges would
apply to the entire watershed, and the WS-III stormwater management requirements already
applicable to the Thorpe Reservoir watershed would continue to be implemented by Jackson
County for the entire drainage area. This alternative approach would provide for protection of
the identified Excellent water quality of the lake while recognizing the existence of local wa-
ter quality protection measures currently in place in the watershed.
In making this recommendation, the Hearing Officer and Director have considered the require-
ments of North Carolina General Statues 143-214.1, 143-214.7, and 143-215, 15A NCAC 2B
.0201, and the verbal and written public comments received. In accordance with North Caro-
lina General Statute 143-215.8A, alternative management strategies adopted under rule 15A
NCAC 2B .0227 require staff to obtain the Governor's review, concurrence and approval prior
to the rule becoming effective as part of this recommendation. In taking this action, rule 15A
NCAC 2B .0227, which references Water Quality Management Plans, will show the EMC has
adopted the water quality protection measures as indicated in management strategy Option
Number Two above for the Thorpe Reservoir watershed. If approved by the EMC, the strat-
egy will be forwarded to the Governor for his review and approval. The proposed effective
date is August 1, 1998.
Implications of the Recommended Reclassification
The Division of Land Resources currently requires sedimentation and erosion control
measures on all land disturbances greater than one acre unless a local program states a
different criteria. The more stringent sedimentation and erosion control practices normally
applied in areas within one mile and draining to the HQW designated waters would not apply
under Option Number Two.
The HQW wastewater discharge limitations, which are entirely implemented by the Division
of Water Quality, would be applied to the whole catchment area of Thorpe Reservoir as
opposed to applying them only to those waters classified as HQW. Advanced treatment would
be required of new or expanded discharges to all waters in or draining to Thorpe Reservoir
and new single family residences would not be permitted to discharge to surface waters.
Expanded discharges are those that increase their permitted pollutant loading.
There is one area where additional costs may be incurred through the implementation of
alternative management strategy Option Number Two. If someone wanted to site a new
wastewater discharge or expand an existing discharge beyond its permitted pollutant loading
in the Thorpe Reservoir watershed, additional expenditures may be necessary in order to meet
the more stringent requirements. The additional cost can not be estimated since it would be
dependent upon the size and type of wastewater discharge, as well as the characteristics of the

receiving waters.
There are currently three permitted dischargers in the Thorpe Reservoir watershed. One has
not started construction and it is not anticipated that they would require a permit modification
for additional flow in the next five years; the second has no plans for expansion in the next
five years, and has an average flow well below half of their permitted flow; and the third's
permit allows for the current permitted flow to double once the facility is at 80% of their
current flow. The additional flow is permitted with limits that would meet the HQW -
management criteria. There are no requests in-house for a new or expanded discharge in the
watershed. Therefore, there are no anticipated costs to wastewater dischargers in the new
future.
New single family residences would also be affected by not being allowed to discharge to
surface waters under the HQW discharge requirements. Current regulations require all new
proposed wastewater treatment systems to perform an alternatives analysis of wastewater
disposal options and select the practicable waste treatment and disposal alternative with the
least adverse impact on the environment. Discharging alternatives are not currently prohibited.
However, in general, discharges are considered the least environmentally preferable
alternative.
Jackson County is the only local government having land use jurisdiction in the area affected
by the proposed rule change. The stormwater controls associated with the HQW classification
would not be applied to Thorpe Reservoir since the County is currently required to implement
an ordinance in compliance with the Water Supply Watershed Protection Act, . This
watershed is currently classified as WS-III, and the stormwater controls associated with this
classification would continue to be implemented by Jackson County, rather than applying the
stormwater provisions associated with HQWs

WATER QUALITY PLAIC.TNG Fa :919 715-5637 Rug_ 5 '96 8:13 P.61/02 —
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O,H N,(MAI.QRI,AND'owNffit)WHMOSHA7e?MEI CANNOT RECALL,AND
11 LATERIN. DAY`wf11IH G1�UNTYW S'S NBR GEORGE HOOPER OF
SYL A..
! : WE,H :DAPRODU91'WO(P4US)HOU TWGTODLSCUSSTIM
I$SUES.i1TIE:Y WERE+. YCORDTAL,NO RSOR OUTBURST. I
DlSCUSSEDTHE,FACIS OF THE ISSUE AND TR�f.?TO EXPLAIN TO THEM THAT
OUR VMMONk WOULD NOTBE CHANOED&7f ADDING/HQW. THEYSTILI.
AGREP W.]THTHE.0227 WATER QUALITY M$1NAGMENT PLAN APPROACH HUT
:I i'WITHOUT THE:HQWCLe15SYFTCATION. Ak?1'BR SLIME LENGTHY DISCUSSIONS,
TTAPPEiARS THAT,WE AI{E'PAATLY RESP73 3IBLBFOR THEIR FEARS OF HQW.
THEY NTIONEDMEHTINGS.AND DISCUS .fO141SWTMTHESTAFF.
EVIDENTLY THEY K"ERETal)AT ONE OFI SEMWIINGS THAT THE HOW
CLAS9RICATIONAND THE MTRICI70N5 50aATM WITH THIS
GT:P.SSR?ICATWN'COULD BE MODIFIED IN 1(B[.EIGFI:.WITH PUBLIC NOTICE,
EARINGSOR PUBLIC INPUT. [TOLD. 117'{t'A'HATTHIS WAS INCORRECT IF
THEY.HADEEENTOLD TH).4 ay ANY MEMB� OFOUTSTAFF. BUTTHE
DAMAh 1LS DONB:,.:'HBIY REALLY THINK CAN COMEINTHE';BACKDOOA"
AI•flJ CHANGE THL$HSTRICTIONS OFIIWQ)VII5HOU1'DUE PAOCBss.
' TO ALLOW 1'HrSISSUF;TOBE RBSOLVEJ11WANTTO PRO(�.ED AS PLANNL�D
'fO FIEAItAT0.IN NOVBM&ER.(DATE PLANNED7T�7). I WANT TO GO WITH TIM
T•R?OO NS APPROVEDBY TTIE EMC.ANI?I SUPPORT OPTION#2
TIM ONE BY THE HK.THIS IS liffi APPROACH TO.TAKE ON
KITKG I STILL THIS APPROACH VM RL,EP THE HQWS AND THEIR
IjEQlI11.ZErilEN`CS;ICONSIS'I'ANTTHROUGHOE(T THE STATE.
YETFaTTHESAlvIETA7Ei RECOGNVETHH RI RK'!M STAFFHAVE DONE
(ESPH(;IAI.l.YT3NV; S`678iiiCE9)oN THIS ON(�.t PP.LIATION TO HWQ AND
! IAlQM TOACIDFESS''THISPARTOF TMES RllWBd.WANT A LETTER FOR
� ...: My A N"PRES.TGNS.SlMrA W THAT INDI. TES THAT THE DATA USED FOR
THE THOMRBCL'ASSIPIC!ATION SUPPORTS.AND IN CONSISTANT WTl'H THE
HQW OMERIA L(WE W1LL SIGN THIS ATT. THNE711M EMCRULES ON THE
FINAL'CLASSIRCA110N.), AND THAT THE SPECFAL MGTPLAN IS
$QUIVAII-ENTTQHQW,THUS MR CM"AR'1'1,T{(E�PURPOSES FOR
.LAKES.]KVAY�YeY1 j7OR IIQW,THIS LAKE DOES MEET THE (�..
it
'_Y pSyk.

WRIER QUALITY PLANNING Fax:[phone] Aug 5 /''9"6� 8:14 P.02/02
Page 2
- HIS APPIQOACH:' .00YP BUT UNDER THE
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ANDT[JE BESTAI.TERNATIVE FOR THIS WAT1 BODY.
: . IFTTIM AAA QUEST[bNS I WRL BE GLAD TO I I64CUSS.
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FROM: J.P.CLOUSE TO: MR. B.ANDERSON
COORDINATOR, SAFETY& TRAINING NORTH CAROLINA HAZARDOUS WASTE
NANTAHALA POWER AND LIGHT CO. MANA15EMENT
FAX. (704)524-SM FAX.[phone]
NUMBER OF PApES4/itG+./tCA'ricq �'S
DATE:_Iq. 'lYi� /9% J
RE: OIL SPILL FOLLOW-UP REPORT NO. '5 &93-7
Please find the attached follow-up report far the spill reported to
your office on /7 49aV A79G1
Should you have any questions,please call 704-3094555.
Thank you, "�
eA ' ! •
GLL4Z(•J ��4 p

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MEMORANDUM
TO: A. PRESTON HOWARD , JR. P.E. RECTOR
DIVISION OF ENVIRONMENTAL MAN GEMENT
THROUGH: . HARLAN BRITT, DEPUTY DIRECTOR
DIVISION OF ENVIRONMENTAL MANAGEMENT
THROUGH: STEVE TEDDER, CHIEF ,
WATER QUALITY SECTION
FROM: MICHAEL C. WICKER, REGIONAL WATER QUALITY SUPERVISOR
FAYETTEVILLE REGIONAL OFFICE
DATE: OCTOBER 12, 1994
SUBJECT: HEARING OFFICERS REPORT AND RECOMMENDATION FOR THE
PROPOSED HIGH QUALITY WATERS (HQW) DESIGNATION OF THORPE
LAKE , HURRICANE CREEK, AND LAUREL BRANCH IN THE LITTLE
TENNESSEE RIVER BASIN.
JACKSON COUNTY -
In accordance with your memo dated June 30, 1994 , a public
hearing was held on Thursday, August 18, 1994, at 7:00 pm in the
auditorium of the Blue Ridge School., in Glenville,North Carolina.
I served as the Hearing Officer for the hearing and a summary of
the Public Hearing which includes my recommendation is attached for
your review and consideration. -
The issue concerns whether the Environmental Management
Commission ( EMC ) should reclassify the subject waters of the
state to include the designation of High Quality Waters (HQW) in
accordance with NCAC T15A: 02B .0201(d) . The Water Quality Section
has completed a study of the subject waters and based on these
results Thorpe Lake, Hurricane Creek, and Laurel Branch were
determined to have excellent water quality and qualify as High
Quality Waters.
Attached for your review and consideration is a report which
summarizes: (1) the background history of the lake and stream
study, .(2) the results of the Public Hearing held on August 18 and
(3) my conclusion and recommendation. Also attached are documents
considered relevant to this designation request.
Should you have any question regarding this report or my
recommendation, please do not hesitate to call me.
MCW/mcw/Glenville

HEARING OFFICER'S REPORT
THORPE LAKE, HURRICANE CREEK, LAUREL BRANCH
HQW DESIGNATION
PROPOSAL
Thorpe Lake is a man-made impoundment of the Tuckasegee River
in the Little Tennessee River Basin. The lake is located within
Jackson County near Glenville , North Carolina. The lake is used
for recreational fishing, swimming and boating. owned by Nantahala
Power and Light Company, the reservoir also has been used to
generate hydroelectric power since its construction in 1941.
A water supply intake downstream- of the lake serves Western
Carolina University. Thorpe Lake is currently classified as WS-III
B waters of the state. Hurricane Creek is a tributary to the lake
and is classified as WS-III Tr and Laurel Branch, a tributary to
Hurricane Creek, is classified WS-III.
In 1989, the Division of Environmental Management received a
request to examine Thorpe Lake ( also known as Lake Glenville ) to
determine whether or not these waters qualify for classification as
HQW. A study was undertaken subsequent to this request by the
Environmental Sciences Branch of the Water Quality Section to
investigate the . physical, chemical, and biological properties of
the lake. These data were used to determine the lake's trophic
status and to compare the lake's water quality to other reference
lakes in the state.
Through these analyses, Thorpe Lake has been shown to have
Excellent water quality. In a 1992 .report assessing the water
quality of lakes across North Carolina ( North Carolina Lake
Assessment Report-DEM WQ Report No. 92-02) , Thorpe Lake was ranked
in the top 10 of 138 .lakes assessed for water quality based on
trophic status. Data also. show that the waters of the lake have
exceptional clarity, are well oxygenated, and have -nutrient
concentrations and chlorophyll a values that are representative of
minimally impacted lakes in the mountain regions. A comparison of
sample results to state water quality standards shows no
exceedences, and all designated uses ( such as swimming and
maintenance of aquatic life ) are supported.
The water quality of Thorpe Lake's tributaries was also
assessed. These analyses were made using the Division's
established methods for rating stream water quality based on
benthic macroinvertebrate populations. Hurricane Creek and it's
tributary Laurel Branch were the only tributary streams to the lake
that were determined to have Excellent water quality.
(SEE ATTACHMENT 1 )

Based on the results of water quality studies , Thorpe Lake
Hurricane creek , and Laurel Branch qualify for designation as High
Quality Waters as defined in 15A NCAC 2B. 0101(e) (5) . Designation
as HQW would add water quality protection measures associated with
this classification in accordance with 15A NCAC 2B. .0201(d) .
(SEE ATTACHMENT 2 )
PUBLIC HEARING NOTIFICATION
In accordance with the general statutes, a public notice of
the hearing was published in the June 15, 1994 edition of the North
Carolina Register, the June 22, 1994 edition of the Crossroads
Chronicle, as well as notices sent to local government and state
officials and interested persons. Additionally, a summary of the
proposal was released to the local media via press release and
announced on local radio. A public information package
summarizing the proposed designation was prepared and distributed
by Suzanne Keene of the Water Quality Section.
PUBLIC HEARING SUMMARY
The Public Hearing was conducted as scheduled. The Division
was represented by seven (7) staff members:
MICHAEL WICKER HEARING OFFICER, REG.WQ SUPER,
FAYETTEVILLE REG. OFF.
FORREST WESTHALL REG. WQ SUPERVISOR, ASHEVILLE REG. OFFICE
BILL ANDERSON ENV. TECH V, ASHEVILLE REG. OFFICE
BETH MCGEE SUPERVISOR, CLASSIFICATION AND STORMWATER
UNIT
STEVE ZOUFALY SUPERVISOR, CLASSIFICATION AND STANDARDS
GROUP
SUZANNE KEENE ENVIRONMENTAL SPECIALIST III,
CLASSIFICATIONS AND STANDARDS GROUP
DEBRA OWEN ENVIRONMENTAL BIOLOGIST ,
INTENSIVE SURVEY GROUP
1V�
??`?� citizens registered for the Public Hearing of which
twenty-two (22) requested to make verbal comments ( refer to
ATTACHMENT 3-ATTENDANCE LIST ) . At 7:15 pm the meeting was called
to order. Opening remarks were given by the Hearing Officer,
followed by a slide presentation of the proposed designation by Ms.
Suzanne Keene of the Water Quality Section's Planning Branch.
Following the staff presentation the public was given the
opportunity to comment. The speakers were allowed to speak 5
minutes and written comments were accepted. A summary of the main
points made by the public is given below. The hearing record
remained open until September 17, 1994 in order to allow further
written comments to be included in the record. Several letters
were received and pertinent comments are also included in the
summary. The hearing was tape recorded and a transcribed record -
along with written comments are attached. ( see ATTACHMENT 4 )

Following the public comments, the hearing was closed at
approximately 9:00 pm.
SUMMARY OF COMMENTS ,
The public comments regarding the proposed HQW designation
were approximately 50% for and 50% against. The speakers were
mostly against the proposal; however, the applause following each
point of view was equally divided. From the written comments it
appears more of the silent participants were for the proposal and
were more comfortable writing about their support of the measures.
Both sides had some excellent points to discuss and articulated
these in a civil manner. some error in interpreting the HQW
regulations, possibly due to misinformation by some of the more
vocal opponents, marred the relevancy of several speakers'
opposition. Following is a summary of the comments.
Opposition
Current WS-III restrictions are adequate. These require density
limits of du/acre.
The local health department requires 1/2 acre lot for septic tank
approvals and this is adequate for watershed protection.
The lake is considered excellent quality now without this
protection and locals have been good stewards of the land in the
past , therefore these HQW .rules are unnecessary and too much
bureaucracy. Folks in Raleigh should not be telling us how to
manage our land.
Reducing development density from 2 du/acre to i du/acre will
impact the local economy severely. Developers will loose to much
of their economic potential. Individual property rights are
violated by these limits on land use.
The EMC does not have a representative from the Western part of
North Carolina and therefore does not represent the interests of
the people of Jackson County. Some felt local control was most
representative. Local Chambers of Commerce, Development Clubs,
Nantahala Power and Light, and the Jackson County Commissioners
were all opposed to the HQW designation primarily due to the land
use restrictions and perceived lack of local control.
Proponents
The lake and its tributaries are a valued resource and need to be
protected from the development that has occurred in other mountain
watersheds. Future generations use of the lake should be
protected.
Local control does not protect the watershed. The local government
caters to the economic development and only enforces the -
environmental regulations when given state mandates.

The development attraction is the high quality of the lake and this
designation by the state would serve to enhance property values.
The tributaries to the lake which did not show excellent water
quality were in areas where development and forestry impacts were
already occurring.
Development may not necessarily be limited by this designation if
proper stormwater control mechanisms are engineered into
development plans. Cluster development and greater densities are
allowed with adequate protective measures.
CONCLUSIONS AND RECOMMENDATIONS
After careful review of the Thorpe Reservoir and Watershed
High Quality Waters Study dated January 6, 1993 , the North
Carolina Lake Assessment Report dated June 1992, North Carolina
General Statues 143-214.1, 143-214.7, and 143-215, NCAC T15A: 02B
.0201, and the public comments both written and verbal I have drawn
the following conclusions with the resulting recommendation:
An assessment of Thorpe Lake and it's tributaries was performed by
the Water Quality Section in accordance with accepted scientific
practices and consistent with methods routinely performed by the
Intensive Survey Group as part of their lakes assessment duties
with in the Water Quality Program.
The results of the water quality assessment of this watershed
indicates that Thorpe LaKe, Hurricane Creek, and Laurel Branch meet
the criteria for excellent water quality. as defined by the methods
in place by the Water Quality Section. Thorpe Lake has been
determined to be in the top ten of 138 lakes assessed in North
Carolina.
In accordance with the definition in NCAC 15TA: 02B .0101 (e) (5) ,
this excellent rating based on biological and physical/chemical
characteristics meets the definition of High Quality Waters.
Since these waters of the state meet the definition of High Quality
Waters NCAC T15A: .02B .0201 requires the Environmental
Management Commission to consider the present and anticipated usage
of these waters , including any uses not specified by the assigned
classification, and not allow any degradation of the quality of
High Quality Waters below the water quality necessary to maintain
existing and anticipated uses of these waters.
Since the High Quality Waters classification has been established
by the EMC as a supplemental classification to protect those waters
with quality higher than the standards, in accordance with N.C_G.S.
143-214 .1, since Thorpe Lake , Hurricane Creek, and Laurel Branch
meet the criteria necessary to be defined as High Quality Waters,and since it is the mandate of the EMC to protect these waters by

the antidegradation policy defined in NCAC T15A: .02B .0201,
IT IS MY RECOMMENDATION THAT THORPE LAKE , HURRICANE CREEK, AND
LAUREL BRANCH BE DESIGNATED AS HIGH QUALITY WATERS (HQW) . ALL THE
PROCEDURES TO MEET THESE REQUIREMENTS SHOULD BE IMPLEMENTED IN
ACCORDANCE WITH NCAC 15TA: .02B .0201 (d) (1) and (2) .
I£ an applicant objects to the requirements to protect high quality
waters and believes degradation is necessary to accommodate
important social and economic development, the applicant can
contest these requirements according to the provisions of G.S. 143-
215.1(e) and 150B-23 . I mention this due to the widespread local
opposition to this designation. The local developers do have
options for greater density development by implementing engineered
controls. The socio-economic impacts of HQW classification and the
anti-degradation policy were determined in the rule making process
approved by the legislature. Any variance of this procedure, due
to the local opposition, after these waters have been determined
excellent water quality, would seem to possibly be a violation of
the separation of powers between the adminsitrative and legislative
branches of state government. Therefore the adjuiciary route as
mentioned above may be the only route for the opposition.

C) ( �
State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management _
James B. Hunt,Jr., Governor
Jonathan B. Howes,Secretary
A. Preston Howard,Jr., P.E., Director
r ,
March 24, 1995
Mr. Tom Drake P
502 Dallas Drive
Huntersville, NC 28078
Dear Mr. Drake:
The purpose of this letter is to inform you that the consideration of the
proposed High Quality Waters classification of Thorpe,Reservoir by the
Water Quality Committee of the Environmental Management Commission
(EMC) is tentatively set for May 10, 1995. The Water Quality Committee
meets at 12:00 P.M. in the Ground Floor Hearing Room in the Archdale
Building in downtown Raleigh. Once the date for the EMC's consideration of
the Thorpe Reservoir reclassification has been set, I will notify you.
I believe that during an earlier telephone conversation that I had with
you, you indicated that you would be interested in knowing the procedure for
appealing EMC decisions and how someone can get permission to address the
commission during one of their meetings.
There are two avenues for appealing EMC decisions regarding rule
changes. The first would be to petition the Wake County Superior Court for a
Writ Certiorari. Essentially, this is an appeal to the court to review the
process that was followed during rule-making to ensure that required
procedures were correctly followed. The second approach would be to simply
request a change in the rule that was adopted. For example, in the case of
reclassifications, if the EMC were to adopt a classification for a specific water
body that an individual believed was incorrect or inappropriate, then that
individual could request that the waters be considered for another
classification citing the reasons for the inappropriateness of the classification
adopted.
P.O.Box 29535,Raleigh.North Carolina 27626.0535 Telephone [phone] FAX [phone]
An Equal opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

it
Mr. Tom Drake
March 24, 1995
Page Two -
It is very uncommon for the EMC or the Water Quality Committee to
hear comments from people other than the Hearing Officer or staff during
their consideration of'surface water reclassifications. Outside input on such
issues is provided during the rule-making process in the form of written and
verbal comments which are provided to commission members prior to their
formal consideration of the issue. Nevertheless, in order to address either of
these oups, you must contact the chair of that particular body. The
chairmn of the Water Quality Committee is Dr. Charles Peterson. The
chairin of the EMC is Dr. David Moreau. The attached listing of EMC
memb rs provides information on how these individuals can be contacted.
I hope that this letter provides you with the information that you
wanted. I will forward the Report of Proceeding to you after these documents
have been distributed to members of the Water Quality Committee, which
will probably be the first of May. In the meantime, please feel free to contact
me if you need anything else ((919) 7335083, extension 573).
Sincerely,
Suza a Hoover (formerly Keen)
Classi cations and Standards
cc: Forrest Westall�
Michael Wicker

State of North Carolina
Department of Environment,
/ Health and Natural Resources AMILA
Division of Environmental Management James B. Hunt,Jr., Governor L
Jonathan B. Howes, Secretary ®FEE
A. Preston Howard,Jr., P.E., Director
March 24, 1995
Mr.Wayne Hooper,Manager r
Jackson County ,✓,m,y's
County Administration Building
Ridgeway
y a, NC Street N�
S 8779
Dear Mr. Hooper:
The purpose of this letter is to inform you that the consideration of the proposed
High Quality Waters classification of Thorpe Reservoir by the Water Quality Committee
of the.Environmental Management Commission(EMC)is tentatively set for May 10,
1995. The Water Quality Committee meets at 12:00 P.M.in the Ground Floor Hearing
Room in the Archdale Building in downtown Raleigh Once the date for the EMC's
consideration of the Thorpe Reservoir reclassification has been set,I will notify you.
I have been asked by other individuals interested in this issue to describe how
EMC decisions can be appealed and how one can get permission to speak to the EMC
and the Water Duality Committee when they consider this issue. If you are also
interested in this information,please contact me at the phone number given below.
The Division Of Environmental Management appreciates the county's
involvement in this Wile-making process. I will forward the Report of Proceedings to you
after these documents have been distributed to members of the Water Quality
Committee,which will probably be the first of May.-In the meantime,feel free to contact
me at [phone],extension 573 ifwyou have any questions.
Sincerely,
e Hoover(formerly Keen)
Class 'cations and Standards
cc: Forrest Westall
Michael Wicker
P.O.Box 29535,Raleigh,North Carolina 27626-0535 Telephone [phone] FAX [phone]
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n
State of North Carolina
Department of Environment,
Health and Natural Resources iIV
•
Division of Environmental Management `
James B. Hunt,Jr., Governor ®®�
Jonathan B. Howes,Secretary ED FEE F 1
A. Preston Howard,Jr., P.E.; Director
March 24, 1995
I ;I lis a
Mr. Phil Fowler I lil APR
210 River North Drive H
IOW
Atlanta, GA 30328 �I,nr,F
Dear Mr. Fowler:
The purpose of this letter is to inform you that the consideration of the
proposed High Quality Waters classification of Thorpe Reservoir by the
Water Quality Committee of the Environmental Management Commission
(EMC) is tentatively set for May 10, 1995. The Water Quality Committee
meets at 12:00 P.M. in the Ground Floor Hearing Room in the Archdale
Building in downtown Raleigh. Once the date for the EMC's consideration of
the Thorpe Reservoir reclassification has been set, I will notify you.
In a telephone discussion that I had with you some time ago, you asked
that I notify you in writing of the schedule for EMC consideration, describe for -
you the procedure for appealing EMC decisions and inform you how
someone can get permission to address the commission during one of their
meetings.
I have discussed your question about appealing EMC decisions with the
legal counsel that advises the EMC during their meetings. There are two
avenues for appealing EMC decisions regarding rule changes. The first would
be to petition the Wake County Superior for a Writ Certiorari. Essentially,
this is an appeal to the court to review the process that was followed during
rule-making to ensure that required procedures were correctly followed. The
second approach would be to simply request a change in the rule that was
adopted. For example, in the case of reclassifications, if the EMC were to
adopt a classification for a specific water body that an individual believed was
incorrect or inappropriate, then that individual could request that the waters
be considered for another classification citing the reasons for the
inappropriateness of the classification adopted.
P.O.Box 29535.Raleigh,North Carolina 27626-0535 Telephone [phone] FAX [phone]
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I
Mr. Phil Fowler
March 24, 1995
Page Two
It is very uncommon for the EMC or the Water Quality Committee to
hear comments from.people other than the Hearing Officer or staff during
their consideration of surface water reclassifications. Outside input on such
issues is provided during the rule-making process in the form of written and
verbal comments which are provided to commission members prior to their
formal consideration of the issue. Nevertheless, in order to address either of
these groups, you must contact the chair of that particular body. The
chairman of the Water Quality Committee is Dr. Charles Peterson. The
chairman of the EMC is Dr. David Moreau. The attached listing of EMC
members provides information on how these individuals can be contacted.
I trust that this letter has addressed all of the questions that you asked
to have addressed in writing. I will forward the Report of Proceeding to you
after these documents have been distributed to members of the Water Quality
Committee, which will probably be the first of May, In the meantime, please
feel free to contact me if you need anything else ([phone], extension
573).
Sincerely,
Suza e� Hoover (formerly Keen)
Clas ications and Standards
CC: Forrest Westall
Michael Wicker

C-)
�®r Mate of North Ca olina
ppepartment of Environment,
C /v Health and Natural Resources
Division of Environmental Management
James B. Hunt,Jr., Governor Y�Jonathan B. Howes, Secretary ®FEEFg®
A. Preston Howard,Jr., P.E., Director
September 7, 1995 •,4 .\
e � ,r
MEMORANDUM
TO: T.C. Lewis,Chairman,Jackson County Board of Cc s6leis e 3
Phil Fowler
Tom Drake r`Q ��o�i e
FROM: Suzanne Hoover
SUBJECT: EMC Consideration of the Proposed Reclassification of Thorpe
Reservoir in Jackson County
Attached please find the revised Report of Proceedings for the subject
reclassification. The majority of it is the same as the report that you received in July,but
some portions of the summary section(yellow pages)have been modified.
There is one change in the proposed rule language that we have made since our
meeting with you in Sylva on August 21. In the proposal for the HQW rule,we have
removed reference to notification and consultation with the Jackson County Commission
since,as Mr. Fowler accurately pointed out in a subsequent telephone conversation,this
is a put of our standard rule-making process. Prior to any public notice or hearing on a
proposed reclassification,the Chairman of any county commission and Mayor of any
municipality with jurisdiction in the affected area is notified of the proposal in writing.
In addition,the goal of adding that language was to relieve the county's concerns
regarding the management of Thorpe Reservoir through the HQW rule,and addition of
that language did not achieve this goal.
After meeting with representatives of your Board and discussing that meeting
with the management here in Raleigh,it has been decided that the recommendation to
the EMC will be to return to hearing with two options for the application of the
alternative management strategy. This way we can hear comments from all interested
parties on maraging.the lake through 2B .0227(Water Quality Management Pla sj and
through the HQW rule.
This issue is scheduled for consideration by the Environmental Management
Commission on September 14,1995. The meeting begins at 9:00 a.m.in the Ground
Floor Hearing Room of the Archdale Building in downtown Raleigb. As you know,these
meetings are open to the public.
Please let me know if you have any questions or need any further information.
cc: Steve Tedder
Forrest Westall
P.O.Box 29535,Raleigh,North Carolina 27626-0535 Telephone [phone] FAX [phone]
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N. C. DEPARTMENT OF ENVIRONMENT, HEALTH,
AND NATURAL RESOURCES
ASHEVILLE REGIONAL OFFICE
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
FAX # : ---
FROM: ��
FAX #: 704 251-6098
DATE:
# OF PAGES INCLUDING THIS COVER:
MESSAGE : If questions , please call 7/04/251-6208 .
-s

OFFICE OF
COMMISSIONERS OF JACKSON COUNTY
Sylva, North Carolina 28779
y COUNTY ACCOUNTANT
WAYNE HOOPER p 1))i
COMMISSIONER OF FINANCE .t 5Ig9YJ.PAUL HO LT,JR.
- - COUNTY ATTORNEY
OEOROE HOOPER RR ® ®
®®
RILL SMITH M
{
ppp7.71ME COMMISSIONERS i
Y' 4
RESOLUTION FOR THE PROTECTION OF WATER IUALIETY IN THORPE RESERVOIR
nt
on
WBERM, the North Carolina
tooreclassifynmental nLakeeThorpee andi8
(EMcconsidering a proposal Quality Water; and
tributary,
is currently in Jackson County as High Q Y
'tributary, Hurricane Branch,
WDEREAS, Jackson County has established and is administering a
WATERSHED PROTECTION ORDINANCE which includes the aforementioned waters; and
WHEREAS, the proposed EMC regulations would require larger mini-
of
e watershed
mum lot sizes and . controls wteff luent limitations
on the he n four rmajor htributaries
without providing �
of the lake; and
WHEREAS, the jurisdictional overlap between local and state regu-
lations will result in chaos with the general public; and
WHEREAS. it is this Commission s belief that the minimum lot sizes
in e quality as rulesin watershed ordinance Provides at
water least as much protection to
Board of
NOW TOEREPORE BE IT RESOLVED that the Jackaulateuwastewater dis-
reg
Thorp
Commissioners requests the EMC Co more stringentlye, consistent with require-
charge permits on all tributaries of Lake Thorpe,
ments Of HQW watersheds, while Jackson County regulates minimum lot require-
ments under our watershed ordinance as a WS III-
ADOPTED this the 20th day of October; 1994.
2 n Othe Eord
ayne Hooper,
ATTEST:
'o�`''�
Darlene Fox, ark to the Board
401 Grindstaff Cove Road, Sylva, North Carolina28779
Telephone'.704/58658529

®R. DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
�1 ENVIRONMENTAL SCIENCES BRANCH
September 28, 1994
MEMORANDUM `
TO: Keith Haynes
FROM: Debts Owen,�)6'�
SUBJECT: 1993 Ambient Lake Report
Enclosed is the only lake that was surveyed in your region last year. Water quality in Lake
Thorpe was very good and the lake lake's trophic state was, once again,oligotrophic. Metals
were below DEM laboratory detection levels except for copper,which was detected at the. ..
sampling site near Cedar Creek(LTN151L) at 4.0 µg/l. Lakewide mean value for copper was
2 µg/1. Both of these values were below the state water quality sstanddaard,of
7�Ig/l.l.
Please give me a call if you have any questions. My telephone number is 919/733-6510.
Encl.
cc w/o enclosure: Jay Surber
h

THORPE
RESERVOIR
COUNTY: Jackson BASIN: Little Tennessee
SURFACEAREA: 592 hectares (1,462 acres) USGSTOPO: Glenville, N.C.
USE: WS-III B LAKE TYPE: Reservoir
LATESTNCTSI: - -5.8 TROPHIC STATE: Oligotrophic
SAMPLING DATE: June 16,1993 ADDITIONAL COVERAGE: Fecal
SECCHI DEPTH: 6.4m CONDUCTIVITY: 12-13 µmhos/cm2
TOTALPHOSPHORUS: 0.02 mg/I DISSOLVED OXYGEN: 7.7-7.9 mg/I
TOTAL ORGANIC NITROGEN: 0.06 mg/I TEMPERATURE: 22.9-23.3 oC
CHLOROPHYLL-A: 4µg/1 pH: 6.8-6.9 s.u.
Thorpe Reservoir,also known as Glenville indicated by high Secchi values, low solids
Lake,is a man-made impoundment of the and low turbidity. Nutrients and
Tuckasegee River located in Jackson County. chlorophyll-a were also low. Fecal coliform
The lake is used for recreational fishing, bacteria were not detected in the lake.
swimming,and boating. Owned by A TSI of-5.8 indicated Thorpe.Reservoir is
Namahala Power and Light, the reservoir oligotrophic. Chemical and biological
also has been used for hydroelectric power parameters also reflected the low
generation since its construction in 1941. productivity in the lake. No violations of
Volume of the lake is 82.6 x 106 m3 with a water quality standards were documented
mean retention time of 294 days. Most of the and Thorpe Reservoir fully supported its
95 km2 drainage area is forested. It is designated uses.
drained by the West Fork Tuckasegee River,
Norton Creek, Hurricane Creek,Cedar Creek,
Mill Creek, and Pine Creek.
Thorpe Reservoir was stratified when
sampled on June 16,1993. Conductivity was
low. Alkalinity and pH indicated slightly
acidic conditions. Water was clear as

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0 5 10 11 ]0 0 5 10 15 to

State of North Cara
Department of Environment,
rA.
Ith and Natural Resources
on of Environmental Management
es B. Hunt,Jr.,Governor ri
than B. Howes,Secretary �E
estonHoward,Jr„ P.E„ Dlrector
June 30, 1994 f `
MEMORANDUM ,.: '�\.: F���FF„O
TO: Michael.Wicker
FROM: Preston Howard
SUBJECT: Designation as Hearing Officer
I am hereby designating you as Hearing Officer for a public hearing concerning the
proposed High Quality Waters (HQW) designation of Thorpe Reservoir and Hurricane Branch
in the Little Tennessee River Basin. The public hearing for these proposals has been
scheduled for August 18, 1994 at 7:00 p.m. in Glenville. A Public Information Package that
provides details of the proposed reclassification is included for your information.
I appreciate your taking the time to conduct this hearing. The staff will be glad to
assist you throughout the proceedings. A draft presentation for your use at the hearing will
be forwarded to you in future correspondence prior to the hearing date. If you have any
questions, please feel free to contact Suzanne Keen at [phone].
Attachment
cc: Steve Tedder
Roy Davis
Forrest Westall
Suzanne Keen
M5:wicker.hod
P.O.Box 29535,Raleigh,North Carollna 27626-0535 Telephone [phone] FAX [phone]
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PUBLIC INFORMATION PACKAGE
Environmental Management Commission
Division of Environmental Management
Subject
Proposed High Quality Waters Designation of Thorpe Reservoir (Lake
Glenville) and its tributary Hurricane Branch in Jackson County (Little
Tennessee River Basin)
Public Hearine Time and Location
August 18, 1994 at 7:00 P.M.
Blue Ridge School
Auditorium
Highway 107
Glenville, NC
Comment Procedures
All persons interested in this matter are invited to attend. Comments,
statements, data, and other information may be submitted in writing prior
to, during, or within 30 days after the hearing, or may be presented
verbally at the hearing. Verbal statements may be limited at the
discretion of the hearing officer. Submission of written copies of verbal
statements is encouraged.
For Further Information Contact:
Suzanne Keen
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
[phone]

n C1
TABLE OF CONTENTS
Section Page
Introduction to Surface Water Quality
Classifications and Standards 1
High Quality Waters and Outstanding
Resource Waters 2
Proposed Reclassification of Thorpe Reservoir and Hurricane Branch 3
Introduction 3
Proposal 4
Management Strategy Applied to High Quality Waters 4
Answers to Commonly Asked Questions 6
Summary 8
Map of Area Proposed for Reclassification 9
Table 1. Comparison of HQW and WS-III Requirements 10
Table 2. Water quality standards for freshwater classifications 11
Proposed Amendments to the Schedule of Classifications
for the Little Tennessee River Basin (15A NCAC 2B .0303) 12

C
INTRODUCTION TO SURFACE WATER QUALTPY CLASSIFICATIONS AND
STANDARDS
All of the surface waters of North Carolina (creeks, rivers, estuaries, sounds,
oceans, etc.) are classified according to their "best use." The state's surface waters
were initially classified in the late 1950s based on general surveys of water quality and
purposes for which waters were being used. As various surface waters are identified
as being inappropriately classified (through reclassification requests from the public
and/or studies conducted by the Division of Environmental Management (DEM)),
reclassification is pursued. The following is a list of basic surface water uses
recognized in North Carolina's surface water quality classifications and standards rules
and the primary freshwater classifications with which those uses are associated:
Use Primary Classification
maintenance and propagation of C
aquatic life; secondary recreation
primary recreation (e.g., frequent B
swimming)
water supply WS-I, WS-II, WS-III, WS-IV, WS-V
In addition to the above primary classifications, there are a variety of
supplemental classifications which are applied, as appropriate, in conjunction with
primary classifications in order to provide added protection to waters required to
maintain and protect their existing uses. The following is a list of North Carolina's
supplemental classifications and the resources or uses that they are intended to protect
or the conditions for which they are designed to address in order to protect their
existing uses.
Resource/Condition Supplemental Classification
trout populations Tr
natural swamp conditions SW
nutrient over-enrichment Nutrient Sensitive Waters (NSW)
streams with excellent water High Quality Waters (HQW)
quality or special designation
streams with excellent water Outstanding Resource Waters (ORW)
quality and an outstanding
._ resource
1

A set of numerical and narrative water quality standards are associated with
each of these classifications and are intended to provide protection for the various uses
described above. Table 2 on page 11 of this information package lists the numerical
standards for freshwaters. The complete regulation on this subject, which includes
narrative standards, can be obtained by contacting DEM's Water Quality Section.
HIGH QUALITY WATERS AND OUTSTANDING RESOURCE WATERS
High Ouality Waters (HOWs)
Some of North Carolina's surface waters are relatively unaffected by pollution
sources and have water quality higher than the standards that are applied to the
majority of the waters of the state. In addition, some waters provide habitat for
sensitive biota such as trout,juvenile fish or rare and endangered aquatic species. In
an effort to protect waters that possess such characteristics, surface waters in the
following categories qualify for classification as High Quality Waters or HQW: 1)
waters rated as Excellent based on chemical and biological sampling (DEM assigns
!i water quality ratings to North Carolina's surface waters based on biological and
chemical data); 2) streams designated by the Wildlife Resources Commission as native
and special native trout waters or primary nursery areas; 3) waters designated as
primary nursery areas by the Division of Marine Fisheries; and 4) critical habitat areas
designated by the Wildlife Resources Commission or the Department of Agriculture.
Waters classed by the Division of Environmental Management as W&I, WS-lI and
SA are High Quality Waters by definition, but these waters are not specifically
assigned the HQW classification because the standards for WS-I, WS-H and SA waters
are at least as stringent as those for waters classified HQW.
In waters classified as HQW, new or expanded wastewater discharges must
provide advanced treatment. In addition, new development activities requiring
Sedimentation and Erosion Control Plans from the Division of Land Resources and
that are within one mile and draining to the HQW must either limit density or use
stormwater control systems to manage stormwater runoff.
Outstanding Resource Waters (ORWs)
jA small percentage of North Carolina's surface waters have excellent water
quality (rated based on biological and chemical sampling as with HQWs) and an
associated outstanding resource. The Outstanding Resource Waters rule defines
outstanding resource values as: 1) outstanding fishery resource; 2) a high level of
water-based recreation; 3) a special designation such as National Wild and Scenic
River or a National Wildlife Refuge; 4) being within a state or national park or forest;
or 5) having special ecological or scientific significance.
2

In freshwaters designated as ORW, new or expanded wastewater discharges are
not allowed. In addition, within the watershed of ORWs, new development activities
must limit density or use stormwater control systems to manage stormwater runoff. In
some circumstances, the unique characteristics of the waters and resources that are to
be protected require that a specialized (or customized) ORW management strategy be
developed.
PROPOSED RECLASSIFICATION OF THORPE RESERVOIR AND
HURRICANE BRANCH
Introduction
In 1989, the Division of Environmental Management received a request to
examine Thorpe Reservoir (also known as Lake Glenville)to determine whether or not
these waters qualify for classification as HQW. The previous section describes the
conditions necessary for HQW designation. The study that was undertaken subsequent
to this request investigated physical, chemical and biological properties of the lake.
These data were used to determine the lake's trophic status and to compare the lake's
water quality to other reference lakes in the state. A lake's trophic status is a
measurement of its relative productivity. Lakes with low productivity are considered
to have excellent water quality.
Through these analyses, Thorpe Reservoir has been shown to have Excellent
water quality. In a 1992 report assessing the water quality of lakes across North
Carolina (North Carolina Lake Assessment Report - DEM WQ Report No. 92-02),
Thorpe Reservoir was ranked in the top ten of 138 lakes assessed for water quality
based on trophic status. Data also show that the waters of the lake have exceptional
clarity, are well-oxygenated, and have nutrient concentrations and chlorophyll a values
that are representative of minimally impacted lakes in the mountains. A comparison of
sample results to state water quality standards shows no violations, and all designated
uses (such as swimming and maintenance of aquatic life) are supported.
The water quality of Thorpe Reservoir's tributaries was also assessed. These
analyses were made using the Division's established method for rating stream water
quality based on benthic macroinvertebrate populations. (Benthic macroinvertebrates
are insects that live in stream beds. Some species are more or less tolerant of pollution
than others. Thus, the absence or presence of certain types of insects can be used to
assess water quality.) Hurricane Branch was the only tributary stream to the lake that
was determined to have Excellent water quality.
3

Proposal
Based on the results of water quality studies, Thorpe Reservoir and Hurricane
Branch qualify for designation as High Quality Waters (HQW). These waters are
currently classified as Class WS-III&B and WS-III Tr. The WS classification has been
applied because there is a water supply intake for Western Carolina University located
downstream of the lake on the Tuckaseegee River. The B classification indicates the
lake's use for primary recreational activities (such as frequent swimming), and the Tr
classification is to protect natural or stocked trout populations. The proposal is to add
the supplemental HQW classification to these existing classifications. A map showing
the area proposed for reclassification is on page 9. The written description of the
proposed revision of classifications in the Little Tennessee River Basin is on page 12.
Management Strategy Applied to High Ouality Waters
j Stormwater Controls:
This section will present stormwater controls applied to HQWs alone, and also
provide a comparison between stormwater provisions for HQW and WS-III watersheds.
Since the proposal for Thorpe Reservoir would be to combine these two classifications,
the more stringent aspects of each would be implemented in practice. Therefore, both
classifications must be examined in order to see what the proposal means in real terms.
First, the stormwater provisions of the HQW classification are described.
The stormwater controls described below are applied to new development that is
within one mile and draining to waters designated HQW. Since Thorpe Reservoir is
located in the mountains, this appears to encompass the lake's entire drainage area. In
addition, the HQW stormwater controls are applied only to new development activities
that require a Sedimentation and Erosion Control Plan from the Division of Land
Resources. Projects which disturb an acre of land or more are required to submit
Sedimentation and Erosion Control Plans. Projects which are not required to submit an
Sedimentation and Erosion Control Plan, such as individuals building a single family
dwelling on their own lot, are not required to comply with this stormwater control
strategy. For those projects which must comply, there are two options available, as
follows:
1) Low Density Option: developments that limit single family developments
to one acre lots and other type developments to 12% built-upon area and
are located at least 30 feet from surface waters;
4

2) High Density Option: developments of higher density than those
described for the Low Density Option are allowed if stormwater control
systems, which are wet detention ponds designed to control the runoff
from all built-upon areas generated from one inch of rainfall, are properly
installed, operated and maintained.
As mentioned previously, Thorpe Reservoir and other surrounding waters are
classified as WS-III because they are in the watershed of a water supply intake for
Western Carolina University located on the Tuckaseegee River (downstream of Thorpe
Reservoir).. The WS-III classification carries with it its own set of provisions for
development activities. These requirements have been incorporated into local
government ordinances and are already in force. Combining the WS-III and HQW
classifications would mean that the more restrictive aspects of each would apply.
Table 1 on page 10 illustrates the major areas of overlap and which provisions would
apply. With regard to development and stormwater provisions, the only situation in
which the HQW rule would take precedence over the WS-III would be for projects
requiring a Sedimentation and Erosion Control Plan as described previously. These are
projects that disturb greater than an acre of land. In these cases, DEM staff would
review the projects to ensure that they either meet the definition of low density (1 acre
lots or 12% built-upon area) or have used wet detention ponds to control the 1 inch
storm.
Discharge Restrictions;
New and expanded discharges to waters designated HQW must provide
advanced treatment. Under this title, expanded discharges are those that expand such
that they increase their permitted pollutant loading. The following requirements are
specified in the rule:
A. Discharges from new single family residences are prohibited.
B. The following treatment is required of new or expanded discharges:
1) Oxygen Consuming Wastes: BOD = 5 mg/l; NH3-N = 2 mg/l; and
DO = 6mg4.
2) Total Suspended Solids: 10 mg/f in trout waters; 20 mg/1 in all other
waters. (Thorpe Reservoir does not have the supplemental trout
designation, but its tributary Hurricane Creek, which also qualifies for
HQW classification, does.)
3) Disinfection: Alternative methods of chlorination will be required for
discharges to trout streams, except that single family residences may use
chlorination if other options are not economically feasible.
- 5

4) Emergency Requirements: Failsafe treatment designs will be
employed, including stand-by power capability for entire treatment works,
dual train design for all treatment components, or equivalent failsafe
treatment designs.
5) Volume: The total volume of treated wastewater for all discharges
combined will not exceed 50- percent of the total instream flow under
7Q10 conditions.
6) Nutrients: Where nutrient overenrichment is projected to be a concern,
appropriate effluent limitations will be set for phosphorus or nitrogen, or
both.
7) Toxic Substances: In cases where complex wastes (those containing or
potentially containing toxicants) may be present in a discharge, a safety
factor will be applied to any chemical or whole effluent toxicity
allocation. The limit for a specific chemical constituent will be allocated
at one-half of the normal standard at design conditions. Whole effluent
toxicity will be allocated to protect for chronic toxicity at an effluent
concentration equal to twice that which is acceptable under design
conditions. In all instances there may be no acute toxicity in a effluent
concentration of 90 percent as measured by the North Carolina "Pass/Fail
Methodology for Determining Acute Toxicityin a Single Effluent
Concentration." Ammonia toxicity will be evaluated according to EPA
guidelines.
As was the case with the stormwater controls, the existing WS-III classification
carries with it its own set of provisions for discharges. However, in this situation there
is not really any overlap,just different provisions that apply in association with either
the WS-III or the HQW classification. Again, Table 1 on page 10 attempts to illustrate
the major provisions for discharges and which classification they are associated with.
Answers to Commonly Asked Ouestions
Question: If only one tributary to the lake was found to have Excellent water
quality, how can the lake be shown to have Excellent water quality?
Response: All of the tributaries exhibited water quality in the upper Good range, but
only Hurricane Branch had index values high enough to receive an
Excellent rating. Potential activities affecting water quality are
sedimentation from adjacent land-disturbing activities and nutrient inputs.
These pollutants may be filtered from the water prior to reaching the
lake. Sedimentation, in particular, impacts benthic macroinvertebrates
(the insects living at the bottom of the stream) which are relied upon to
obtain water quality ratings in freshwater streams.

Question: The HQW management strategy requires large, high density development
projects to control stormwater with wet detention ponds. Is it possible to
use this type of runoff control measure in mountainous areas with steep
slopes?
Response: The steep slopes found in mountainous areas do present unique situations
with respect to development and the control of stormwater runoff. First,
it should be emphasized that the HQW classification only requires the use
of wet detention ponds in cases of large, high density developments (in
other words, developments that disturb an acre or more of land and are of
higher density than one acre lots or twelve percent built-upon area). In
these cases, it is important that stormwater control is considered early in
the planning stages of the project so that the pond can be located
appropriately.
Question: Who decides whether or not to reclassify the waters after they go to
public hearing?
Response: After the public hearing and the 30 day comment period following the
hearing, the reclassification is considered by the Environmental
Management Commission (EMC). The EMC is made up of 17 members
that represent various interests (including, but not limited to, someone
from the medical profession, a representative from agriculture, someone
associated with a city or county government and a representative from the
public at large who is interested in water and air pollution control).
These individuals are appointed by the Governor, the Lieutenant
Governor and members of the state legislature. The EMC is provided
with all details of the proposed reclassification, including all written and
verbal comments received. They have the authority to adopt the
recommendation of the hearing officer or to make and adopt an alternate
recommendation of their own.
Question: The stormwater controls would be applied to "new" development projects.
What is the definition of "new"?
Response: Since the tugger for the application of HQW stormwater controls is the
requirement of a Sedimentation and Erosion Control Plan, this criterion is
used to determine new or existing development in HQW watersheds. In
other words, any development that has an approved Sedimentation and
Erosion Control Plan fi-ont the Division of Land Resources prior to the
effective date of the reclassification is considered existing. Those that
modify existing plans or that have not yet developed or received approval
_ 7

of a plan at the time of the effective date would be considered new
development projects.
Question: How would the HQW classification affect the location of septic systems?
Response: The location of septic systems is regulated by the Division of
Environmental Health and County Health Departments. The only
provision in the HQW rule is associated with discharging septic systems.
Discharging septic systems (those with a direct outlet to surface waters)
are essentially prohibited in HQWs. There is a provision for allowing
these type systems when no other alternative exists.
Question: What effect would 11QW classification have on forestry or agricultural
activities?
Response: None.
Summary
Thorpe Reservoir has been determined through scientific analyses to have
Excellent water quality and therefore qualifies for classification as High Quality Waters
(HQW). These waters are cuncildy classified for water supply purposes and are
managed through local government water supply protection ordinances established in
conformance with the water supply protection rules (15A NCAC 2B .0100 and .0200).
Designation as HQW would add water quality protection measures associated with this
classification to those already in place due to the water supply classification.
I,
8

Proposed Reclassification Thorpe Reservoir and Hurricane Branch
TOO*
IACXSON
CouN
N------------
�c
;
n
e Creed
4 y or
Il ese VO'
GSeeK I
. --• Ob Gteek �� I i
Yt' C
"Oar Creek
hL1CON
COUNTY ••-
N
Gt�
�e 64
LEGEND ° I
® PrWed HQW
------- Canty Bandriaa
_= Major Roads
• WO DwIa � - C
9

Table 1. Comparison of density and discharge requirements for WS-III watersheds and
High Quality Waters (HQW).
(Shaded blocks indicate which requirements would apply in waters classified
both WS-III and HQW, either because they are more stringent than the parallel
provision or the item is not addressed in the other rule.) _
Wastewater
Density Requirements* Discharge Requirements
Low High **
Density Densi Tyne Treatment
WS-III 2du/1 acre 24�5 y Ala' ap'AM
watershed 24% built hmlrivpor waste , r. watfr=qualr,
upon area area, pFohrbu�ed Aarl�
HQW M%iiy:l4" no maximum P iss Mdia-KK
g%Nlt limit charges3'rom treaiiaen"
upon area sin'te famyglied foe
�,�tdedc,�°' rieW=or
�r "' ife;� expanded;-
* Density requirements for the watershed of WS-IIIs apply to all new development
activities. Density requirements for HQWs only apply to new development activities
that require a Sedimentation and Erosion Control Plan from the Division of Land
Resources (projects that disturb an acre or more of land). So, the more stringent
HQW low density requirements would only be applicable for those larger projects
which disturb an acre or more of land and require a Sedimentation and Erosion
Control Plan. The remainder of development projects would be subject to the WS-III
provisions.
** All high density development activities, whether HQW or WS-III, must use
stormwater runorf controls.
M4:table
10

Table 2 . Water Quality Standards For Freshwater Classifications
Here Stringent
Standards For All Standards To Support
Parameters Freshwater Additional U.e.
---------- _________________ ____________________
Aquatic Human
Life Health WS Classes Trout
------- ------- ---------- -------
Arsenic lug/11 50
Barium (mg/11 1.0
Benzene lug/11 71.4 1.19
Beryllium (ng/11 - 117 6.8
Cadmium (ug/1) 2.0 0.4
'Carbon tetrachloride (ug/1) 4.42 0.254
Chloride (mg/1) 230 (AL1 250
Chlorinated benzenes lug/11 488
Chlorine, total residual (u9/3) 17 (AL) 17
chlorophyll a• corrected (ug/11 40 (NI 35 (NJ
Chromium, total (ug/1) 50
Colifocm, total (MF7CC/100.11 50 (N1(21
Collfocm, focal (MFTCC/100m1) 200 (N)
Copper (ug/1) 7 (ALI
Cyanide (ug/1) $.a
Dioxin (ng/11 0.000014 0.000013
Dissolved gases (N)
Di...Lved oxygen (mg/l) 5.0 (Sw)(11 6.0
Fluoride (mg/1) 1.9 -
Hardness, total (mg/11 100
H...chlarobutediene ,tug/I) 49.7 0.445
Iron (mg/1) 1.0 (AL)
Lead (uq/1) 25 INI
Manganese luq/l) 50 (Wail 6 III:2001
MBAS (ug/1) - Soo
(Methylene-Blue-Active Substances) -
Mercury (u9/1) 0.012
Nickel (uq/3) 88 25
Nitrate nitrogen (mg/1) 10
Pesticides
Aldrin (nq/11 2.0 0.136 0.127
Chlordane (n9/1) 4.0 0.588 0.575
DST (ng/1) 1.0 0.591 O.Saa
Demeton (ng/11 100
Dieldrin (n9/11 2.0 0.144 0.135
End o..Ilan (nq/1) 50
Endrin (ng/1) 2.0
Guthion (n9/11 10
Heptachlor (nq/1) 4.0 0.214 0.208
Lindane (nq/l) 10
Methoxymhloc (n9/1) 30
Mirex (ng/l) L.0
Parathion 09/11 13
Toxaphene (ng/11 0.2
2,4-D (ug/1) 100
2,4,5-TP (Sllvexl (u9/1) 10
PH (units) 6.0-9.9 (aw)
Phenolic compounds (uq/1) (NJ 1.0 (NI
Polychlorinated biphenyls (nq/1) 1.0 0.079
Polyouclear aromatic
hydrocarbons (n9/1) 31.1 2.0
Radioactive sasater.". (N1
selenium (ug/1) 5
silver (ug/1) 0.06 (ALI
Solid., total dissolved (mg/1) Soo
Solid., Suspended (H) 250
Sulfates (mg/1)
Temperature INI
Tetzachlordethahe (1.1,2,21 lu9/11 30.8 0.172
Tetrachloroethylene (u9/1) 0.8
Toluene (u9/1) 11 0.36
Toxic Substances (N)
Trlalkyltin (u9/1) 0.008
Trichloroethylene (u9/11 92.4 3.08
Turbidity (M) 50, 25 (NJ 10
2 10 INI
Vinyl chloride (u9/11
Zinc (ug/1) 50 (AL1
Note: (NI Be. 2B .0211 (b), (t), (d), or lei for nacrstive description
of limits.
(ALI values repre.ent action level. se specified I.
.0211 (b)(4).
(awl asignatehi Sweep dissolved oxygen less(the. 5.0 W/1s hay have a P a If do. t s low a to natural
- {11 An )daily.......us
rag reading may be as or as 4.0 u9/1 but
the daily average Must r. 5.0 ugil m ce.
(2) Applies only to anfileered wacec supPllea.
ii

PROPOSED AHEN@DNT TO THE LITTLE TENNESSEE RIVER EASDN
AND SAVANNAH RIVER DRAIIAGE AREA-
SCHEDULE OF CLASSIFICATIONS AS REFERENCED IA Tn%E 15A
NORTH CAROLM ADMISTRATM CODE 2B .0303
Existing Description of Proposed
Name of Stream Description Class Proposed segment Class
-------------- ----------- ------- ---------------- --------
West Fork Tockasegee River From source in Thorpe Lake WS-IIISB Same WS-1TTr.R HQW
(Thorpe Lake below eleva- Reckwater at Elevation 3492 HSL
tion 3492 NEL) to Thorpe Uam
Hurricane Creek (Hurricane From source to Thorpe Lake, WS-III Tr Same WS-III Tr HQW
Lake) West Fork Tuckasegee River
Laurel Branch Prom source to Hurricane Creek WS-III Same WS-III HQW
I!
L _ .
1.2

t n
State of North Carolina
Department of Environment,
rivHealth and Natural Resources •
CDivision of Environmental Management
James B. Hunt,Jr„ Governor
111111 Jonathan B. Howes,Secretary
A. Preston Howard,Jr., P.E., Director
June 24, 1994
Mr. Wayne Hooper, Chairman
Jackson County Board of Commissioners Ul.
County Administration Building N Itl gBl
8 Ridgeway Street pll l -kHc on CE
Sylva, NC 28779
Dear Mr. Hooper:
The Division of Environmental Management (DEM) has proposed that Thope
Reservoir and its tributary Hurricane Branch be classified as High Quail Y—Waters
'(HQW):The Environmental Management Commission has given staff approval to
proceed to public hearing on this proposal to receive comments from citizens, local
governments and other interested parties. These waters have been found to have
excellent water quality, which qualifies them for classification as HOW.
The management strategies associated with waters classified as HQW include
restrictions on new and expanded wastewater discharges and on new development
activities that require a Sedimentation and Erosion Control Plan from the Division of
Land Resources. The details of the proposed reclassification and associated
management strategy are described in the enclosed Public Information Package. This
document also includes an overview of the state's surface water quality classifications
and standards program.
A pubficjhearing_will be held in Glenville, North Carolina on August 18 199_4 at
7:00 P.M. to receive public comment on the proposal to designate Thorpe Reservoir
and Hurricane Branch as HOW. The Environmental Management Commission values
local government input into such proposals and encourages you to provide comments
verbally at the hearing or in written form up to 30 days after the hearing. The public
comment period remain open through September 17, 1994.
v"
P.O.Box 29535,Rd eigh.North Carolina 27626-0635 Telephone [phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

1
�� n �
m .N
rt�u� �.
� .

Page Two
June 24, 1994
If you have any questions or comments concerning this proposal, please feel
free to contact me at [phone].
Sincerely,
Suzanne H. Keen
Classifications and Standards
cc: Roy Davis
Forrest Westall';
Bill Anderson
M5:jackson.ltr

PUBLIC INFORMATION PACKAGE
Environmental Management Commission
Division of Environmental Management
Subiect
Proposed High Quality Waters Designation of Thorpe Reservoir (Lake
Glenville) and its tributary Hurricane Branch in Jackson County (Little
Tennessee River Basin)
Public Hearing Time and Location
August 18, 1994 at 7:00 P.M.
Blue Ridge School
Auditorium
Highway 107
Glenville, NC
Comment Procedures
All persons interested in this matter are invited to attend. Comments,
statements, data, and other information may be submitted in writing prior
to, during, or within 30 days after the hearing, or may be presented
verbally at the hearing. Verbal statements may be limited at the
discretion of the hearing officer. Submission of written copies of verbal
statements is encouraged.
For Further Information Contact:
Suzanne Keen
Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
[phone]

TABLE OF CONTENTS
Section Page
Introduction to Surface Water Quality
Classifications and Standards - 1
High Quality Waters and Outstanding
Resource Waters 2
Proposed Reclassification of Thorpe Reservoir and Hurricane Branch 3
Introduction 3
Proposal 4
Management Strategy Applied to High Quality Waters 4
Answers to Commonly Asked Questions 6
Summary 8
Map of Area Proposed for Reclassification 9
Table 1. Comparison of HQW and WS-III Requirements 10
Table 2. Water quality standards for freshwater classifications 11
Proposed Amendments to the Schedule of Classifications
for the Little Tennessee River Basin (15A NCAC 2B .0303) 12

INTRODUCTION TO SURFACE WATER QUALITY CLASSIFICATIONS AND
STANDARDS
All of the surface waters of North Carolina (creeks, rivers, estuaries, sounds,
oceans, etc.) are classified according to their "best use." The state's surface waters
were initially classified in the late 1950s based on general surveys of water quality and
purposes for which waters were being used. As various surface waters are identified
as being inappropriately classified (through reclassification requests from the public
and/or studies conducted by the Division of Environmental Management (DEM)),
reclassification is pursued. The following is a list of basic surface water uses
recognized in North Carolina's surface water quality classifications and standards rules
and the primary freshwater classifications with which those uses are associated:
Use Primary Classification
maintenance and propagation of C
aquatic life; secondary recreation
primary recreation (e.g., frequent E
swimming)
water supply WS-I, WS-II, WS-III, WS-IV, WS-V
In addition to the above primary classifications, there are a variety of
supplemental classifications which are applied, as appropriate, in conjunction with
primary classifications in order to provide added protection to waters required to
maintain and protect their existing uses. The following is a list of North Carolina's
supplemental classifications and the resources or uses that they are intended to protect
or the conditions for which they are designed to address in order to protect their
existing uses.
Resoume/Condition Supplemental Classification
trout populations Tr
natural swamp conditions Sw
nutrient over-enrichment Nutrient Sensitive Waters (NSW)
streams with excellent water - High Quality Waters (HQW)
quality or special designation
streams with excellent water Outstanding Resource Waters (ORW)
quality and an outstanding
- resource
1

A set of numerical and narrative water quality standards are associated with
each of these classifications and are intended to provide protection for the various uses
described above. Table 2 on page 11 of this information package lists the numerical
standards for freshwaters. The complete regulation on this subject, which includes
narrative standards, can be obtained by contacting DEM's Water Quality Section.
HIGH QUALITY WATERS AND OUTSTANDING RESOURCE WATERS
Hieh Ouality Waters (HOWs)
Some of North Carolina's surface waters are relatively unaffected by pollution
sources and have water quality higher than the standards that are applied to the
majority of the waters of the state. In addition, some waters provide habitat for
sensitive biota such as trout, juvenile fish or rare and endangered aquatic species. In
an effort to protect waters that possess such characteristics, surface waters in the
following categories qualify for classification as High Quality Waters or HQW: 1)
waters rated as Excellent based on chemical and biological sampling (DEM assigns
water quality ratings to North Carolina's surface waters based on biological and
chemical data); 2) streams designated by the Wildlife Resources Commission as native
and special native trout waters or primary nursery areas; 3) waters designated as
!i primary nursery areas by the Division of Marine Fisheries; and 4) critical habitat areas
•i designated by the Wildlife Resources Commission or the Department of Agriculture.
Waters classified by the Division of Environmental Management as WS-I, WS-11 and
SA are High Quality Waters by definition, but these waters are not specifically
assigned the HQW classification because the standards for WS-I, WS-H and SA waters
are at least as stringent as those for waters classified HQW.
In waters classified as HQW, new or expanded wastewater discharges must
provide advanced treatment. In addition, new development activities requiring
Sedimentation and Erosion Control Plans from the Division of Land Resources and
that are within one mile and draining to the HQW must either limit density or use
stormwater control systems to manage stonmwater runoff.
Outstanding Resource Waters (ORWs)
A small percentage of North Carolina's surface waters have excellent water
quality (rated based on biological and chemical sampling as with HQWs) and an
associated outstanding resource. The Outstanding Resource Waters rule defines
outstanding resource values as: 1) outstanding fishery resource; 2) a high level of
water-based recreation; 3) a special designation such as National Wild and Scenic
River or a National Wildlife Refuge; 4) being within a state or national park or forest;
or 5) having special ecological or scientific significance.
2

In freshwaters designated as ORW, new or expanded wastewater discharges are
not allowed. In addition, within the watershed of ORWs, new development activities
must limit density or use stormwater control systems to manage stormwater runoff. In
some circumstances, the unique characteristics of the waters and resources that are to
be protected require that a specialized (or customized) ORW management strategy be
developed.
PROPOSED RECLASSIFICATION OF THORPE RESERVOIR AND
HURRICANE BRANCH
Introduction
In 1989, the Division of Environmental Management received a request to
examine Thorpe Reservoir (also known as Lake Glenville) to determine whether or not
these waters qualify for classification as HQW. The previous section describes the
conditions necessary for HQW designation. The study that was undertaken subsequent
to this request investigated physical, chemical and biological properties of the lake.
These data were used to determine the lake's trophic status and to compare the lake's
water quality to other reference lakes in the state. A lake's trophic status is a
measurement of its relative productivity. Lakes with low productivity are considered
to have excellent water quality.
Through these analyses, Thorpe Reservoir has been shown to have Excellent
water quality. In a 1992 report assessing the water quality of lakes across North
Carolina (North Carolina Lake Assessment Report - DEM WQ Report No. 92-02),
Thorpe Reservoir was ranked in the top ten of 138 lakes assessed for water quality
based on trophic status. Data also show that the waters of the lake have exceptional
clarity, are well-oxygenated, and have nutrient concentrations and chlorophyll a values
that are representative of minimally impacted lakes in the mountains. A comparison of
sample results to state water quality standards shows no violations, and all designated
uses (such as swimming and maintenance of aquatic life) are supported.
The water quality of Thorpe Reservoir's tributaries was also assessed. These
analyses were made using the Division's established method for rating stream water
quality based on benthic macroinvertebrate populations. (Benthic macroinvertebrates
are insects that live in stream beds. Some species are more or less tolerant of pollution
than others. Thus, the absence or presence of certain types of insects can be used to
assess water quality.) Hurricane Branch was the only tributary stream to the lake that
was determined to have Excellent water quality.
3

Proposal
Based on the results of water quality studies, Thorpe Reservoir and Hurricane
Branch qualify for designation as High Quality Waters (HQW). These waters are
currently classified as Class WS-III&B and WS-III Tr. The WS classification has been
applied because there is a water supply intake for Western Carolina University located
downstream of the lake on the Tuckaseegee River. The B classification indicates the
lake's use for primary recreational activities (such as frequent swimming), and the Tr
classification is to protect natural or stocked trout populations. The proposal is to add
the supplemental HQW classification to these existing classifications. A map showing
the area proposed for reclassification is on page 9. The written description of the
proposed revision of classifications in the Little Tennessee River Basin is on page 12.
Management Strategy Applied to High Quality Waters
Stormwater Controls:
This section will present stormwater controls applied to HQWs alone, and also
provide a comparison between stormwater provisions for HQW and WS-III watersheds.
Since the proposal for Thorpe Reservoir would be to combine these two classifications,
the more stringent aspects of each would be implemented in practice. Therefore, both
classifications must be examined in order to see what the proposal means in real terms.
First, the stormwater provisions of the HQW classification are described.
The stormwater controls described below are applied to new development that is
within one mile and draining to waters designated HQW. Since Thorpe Reservoir is
located in the mountains, this appears to encompass the lake's entire drainage area. In
addition, the HQW stormwater controls are applied only to new development activities
that require a Sedimentation and Erosion Control Plan from the Division of Land
Resources. Projects which disturb an acre of land or more are required to submit
Sedimentation and Erosion Control Plans. Projects which are not required to submit an
Sedimentation and Erosion Control Plan, such as individuals building a single family
dwelling on their own lot, are not required to comply with this stormwater control
strategy. For those projects which must comply, there are two options available, as
follows:
1) law Density Option: developments that limit single family developments
to one acre lots and other type developments to 12% built-upon area and
are located at least 30 feet from surface waters;
4

2) High Density Option: developments of higher density than those
described for the Low Density Option are allowed if stormwater control
systems, which are wet detention ponds designed to control the runoff
from all built-upon areas generated from one inch of rainfall, are properly
installed, operated and maintained.
As mentioned previously, Thorpe Reservoir and other surrounding waters are
classified as WS-III because they are in the watershed of a water supply intake for
Western Carolina University located on the Tuckaseegee River (downstream of Thorpe
Reservoir).. The WS-III classification carries with it its own set of provisions for
development activities. These requirements have been incorporated into local
government ordinances and are already in force. Combining the WS-III and HQW
classifications would mean that the more restrictive aspects of each would apply.
Table 1 on page 10 illustrates the major areas of overlap and which provisions would
apply. With regard to development and stormwater provisions, the only situation in
which the HQW rule would take precedence over the WS-III would be for projects
requiring a Sedimentation and Erosion Control Plan as described previously. These are
projects that disturb greater than an acre of land. In these cases, DEM staff would
review the projects to ensure that they either meet the definition of low density (1 acre
lots or 12%built-upon area) or have used wet detention ponds to control the 1 inch
storm.
Discharge Restrictions:
New and expanded discharges to waters designated HQW must provide
advanced treatment Under this rule, expanded discharges are those that expand such
that they increase their permitted pollutant loading. The following requirements are
specified in the rule:
A. Discharges from new single family residences are prohibited.
B. The following treatment is required of new or expanded discharges:
1) Oxygen Consuming Wastes: BOD = 5 mg/l; NH3-N = 2 mg/l; and
DO = 6 mg/1.
2) Total Suspended Solids: 10 mg/1 in trout waters; 20 mg/1 in all other
waters. (Thorpe Reservoir does not have the supplemental trout
designation, but its tributary Hurricane Creek, which also qualifies for
HQW classification, does.)
3) Disinfection: Alternative methods of chlorination will be required for
discharges to trout streams, except that single family residences may use
chlorination if other options are not economically feasible.
5

4) Emergency Requirements: Failsafe treatment designs will be
employed, including stand-by power capability for entire treatment works,
dual train design for all treatment components, or equivalent failsafe
treatment designs.
5) Volume: The total volume of treated wastewater for all discharges
combined will not exceed 50- percent of the total instream flow under
7Q10 conditions.
6) Nutrients: Where nutrient overenrichment is projected to be a concern,
appropriate effluent limitations will be set for phosphorus or nitrogen, or
both.
7) Toxic Substances: In cases where complex wastes (those containing or
potentially containing toxicants) may be present in a discharge, a safety
factor will be applied to any chemical or whole effluent toxicity
allocation. The limit for a specific chemical constituent will be allocated
at one-half of the normal standard at design conditions. Whole effluent
toxicity will be allocated to protect for chronic toxicity at an effluent
concentration equal to twice that which is acceptable under design
conditions. In all instances there may be no acute toxicity in a effluent
concentration of 90 percent as measured by the North Carolina "Pass/Fail
Methodology for Determining Acute Toxicity in a Single Effluent
Concentration." Ammonia toxicity will be evaluated according to EPA
guidelines.
As was the case with the stormwater controls, the existing WS-III classification
carries with it its own set of provisions for discharges. However, in this situation there
is not really any overlap, just different provisions that apply in association with either
the WS-III or the HQW classification. Again, Table 1 on page 10 attempts to illustrate
the major provisions for discharges and which classification they are associated with.
Answers to Commonly Asked Ouestions
Question: If only one tributary to the lake was found to have Excellent water
quality, how can the lake be shown to have Excellent water quality?
Response: All of the tributaries exhibited water quality in the upper Good range, but
only Hurricane Branch had index values high enough to receive an
Excellent rating. Potential activities affecting water quality are
sedimentation from adjacent land-disturbing activities and nutrient inputs.
These pollutants may be filtered from the water prior to reaching the
lake. Sedimentation, in particular, impacts benthic macroinvertebrates
(the insects living at the bottom of the stream) which are relied upon to
obtain water quality ratings in freshwater streams.
6

Question: The HQW management strategy requires large, high density development
projects to control stormwater with wet detention ponds. Is it possible to
use this type of runoff control measure in mountainous areas with steep
slopes?
Response: The steep slopes found in mountainous areas do present unique situations
with respect to development and the control of stormwater runoff. First,
it should be emphasized that the HQW classification only requires the use
of wet detention ponds in cases of large, high density developments (in
other words, developments that disturb an acre or more of land and are of
higher density than one acre lots or twelve percent built-upon area). In
these cases, it is important that stormwater control is considered early in
the planning stages of the project so that the pond can be located
appropriately.
Question: Who decides whether or not to reclassify the waters after they go to
public hearing?
Response: After the public hearing and the 30 day comment period following the
hearing, the reclassification is considered by the Environmental
Management Commission (EMC). The EMC is made up of 17 members
that represent various interests (including, but not limited to, someone
from the medical profession, a representative from agriculture, someone
associated with a city or county government and a representative from the
public at large who is interested in water and air pollution control).
These individuals are appointed by the Governor, the Lieutenant
Governor and members of the state legislature. The EMC is provided
with all details of the proposed reclassification, including all written and
verbal comments received. They have the authority to adopt the
recommendation of the hearing officer or to make and adopt an alternate
recommendation of their own.
Question: The stormwater controls would be applied to "new" development projects.
What is the definition of "new"?
Response: Since the trigger for the application of HQW stormwater controls is the
requirement of a Sedimentation and Erosion Control Plan, this criterion is
used to determine new or existing development in HQW watersheds. In
other words, any development that has an approved Sedimentation and
Erosion Control Plan from the Division of Land Resources prior to the
effective date of the reclassification is considered existing. Those that
- modify existing plans or that have not yet developed or received approval
7

l � 1
of a plan at the tine of the effective date-would-be considered new
development projects.
Question: How would the HQW classification affect the location of septic systems?
Response: The location of septic systems is regulated by the Division of
Environmental Health and County Health Departments. The only _
provision in the HQW rule is associated with discharging septic systems.
Discharging septic systems (those with a direct outlet to surface waters)
are essentially prohibited in HQWs. There is a provision for allowing
these type systems when no other alternative exists.
Question: What effect would HQW classification have on forestry or agricultural
activities?
Response: None.
Summary
Thorpe Reservoir has been determined through scientific analyses to have
Excellent water quality and therefore qualifies for classification as High Quality Waters
(HQW). These waters are cunenlly classified for water supply purposes and are
managed through local government water supply protection ordinances established in
conformance with the water supply protection rules (15A NCAC 2B .0100 and .0200).
Designation as HQW would add water quality protection measures associated with this
classification to those already in place due to the water supply classification.
8

f� C
Proposed Reclassification Thorpe Reservoir and Hurricane Branch
ruQk
ao
IACXSON
COUNTY R 4
Nf
Creo
4�e or
dill ese vo'
eek II
.nob Ct �
_ I ceQar Creek
MACON
COUNTY
Crte� �
LEGEND
® Propow Haw
------ Comte BM&.e3
_ —= llojor Roads
0

Table 1. Comparison of density and discharge requirements for WS-III watersheds and
High Quality Waters (HQW).
(Shaded blocks indicate which requirements would apply in waters classified
both WS-III and HQW, either because they are more stringent than the parallel
provision or the item is not addressed in the other rule.)
Wastewater
Density Requirements* Discharge Requirements
Low High **
Density Density Tyne Treatment
WS-M 2du/1 acre 24M 3usfn app pw
watershed 24% built hmlt vpo-rt-rt . "vaslT=; '"° ""° waterial"ii}s.
M mi re �
upon area area pro�tibtt� standards
HQW 92guete no maximum new.,dis'- °'idvance,",'3
129M limit chaigesgjcoi� [teatNEnt
upon area_ gTami regmred for
=wdences neb
rbh` exparided
* Density requirements for the watershed of WS-IIIs apply to all new development
activities. Density requirements for HQWs onlv apply to new development activities
that require a Sedimentation and Erosion Control Plan from the Division of Land
Resources (projects that disturb an acre or more of land). So, the more stringent
HQW low density requirements would only be applicable for those larger projects
which disturb an acre or more of land and require a Sedimentation and Erosion
Control Plan. The remainder of development projects would be subject to the WS-III
provisions.
** All high density development activities, whether HQW or WS-III, must use
stormwater runoff controls.
M4:table
10

Table 2 . Water Quality Standards FOr .Freshwater Classifications
More Stringent
Standards For All Standards To Support
Parameters Freshvate[ Additional Uses
---------- _________ ____ ____________
Aquatic Human
Life Health Ns Classes Trout
-------
At...I. (uq/11 50 -
Earium (m9/1) L.0
Bement (ug/1) 71.4 1.19
Beryllium ln9/11 117 6.8
Cadmium (ug/1) 2.0 0.4
'Carbon tetrachloride (ug/1) 4.42 0.254
Chloride Img/11 230 I= 250
Chlorinated benrene. (u9/1) 488
Chlarine, total residual (ug/1) 17 (AL) 17
Chlorophyll a, corrected (ug/1) 40 (N) LS (N)
Chromium, total (ug/1) 50 50 (N1121
Callform, total (MFtcc/10om11
Califarm, fecal (11FICC/100m11 200 (N1
Capper (u9/11 7 (AL)
Cyanide (uq/11 5.0
DLoein (n5/1) 0.000014 0.000013
➢issa lved gases (NI 6.0
Disso Lved oaygen (mg/1) 5.0 (SW)(1)
FSuazide (mg/1) 1.8 100
Hardness, total (mg/1)
R....Iron (llorobutadiene �(ug/1) 1 0 (AL)
L 49 7 0.445
Lead (u9/11 25 (NI 50 (HSII 6 III:200)
Manganese lug/1)
MUM (uq/1) 500
(Methylene-Blue-Active Substances)
Mercury (ug/1) 0.012
Nickel (u9/1) 88 25
Hitxate nitr0gen (m9/1) 10
Pesticides
Aldrin (n9/1) 2.0 0.136 0.127
Chlordane (n9/1) 4.0 MIS 0.575 '
➢Pf (ng/1) 1.0 0.591 0.588
Demean (n9/1) 100 0.144 0.135
Dieldrin (ng/11
Endasulfan (ng/l) 50
Enirin (ng/1) 2.0
Guthion (nq/l) LO
Heptachlor (ng/1) 4.0 0.214 0.208
Linden (nq/11 10 '
Hethoxyehlar (ng/1) 30
L.0
mix" (ng/1)
Parathion 09/1) 131
Toeaphene (ng/l) 100
2.4-0 (ug/1) - 10
2.415-72 (Silver) fug/11 6.0-9.0 (SW1
PH (units)
Phenolic compaunda (uq/11 I9) 1.0 (NJ
Polychlorinated biPhenyls (n9/1) 1.0 0.079 .
Polynuelear aromatic 31.1 2.8
hydrocarbons (ng/ll '
Radioactive substances 5 (NI
Selenium (ug/1) 0.06 (ALI
Silver (ug/1) Sao
Salida, total dissolved (mg/11
Solids, suspended (N) 250 .
Sulfates (mg/l)
Temperature (N1
Teexachlaraethane (1,1.2.21 (u9/1) 10.8 0.172
Tatrachloraethylene Wall) 11 0.8 0.36
Toluene (u9/1)
Taal. Substances (N) -
Trialkyltin (ug/1) 0.008
Trichlorceehylene (uq/1) 92.4 3.08 LO fHl
Tuxbidity (NxQJ 504 25 (N)
Vinyl chloride (u9/1) 525 1
Zinc (uq/1) _ 50 MI
Hoter CHI See 20 .0211 (b). (a). (d), or (el far narrative description
of Claire.
(AL) Values rapt.... actran levels as specified in
.021L (b)(4).
(SWI Designated swamp Waters may have A PH se lw as 4.3 and
-- dissolved oxygen less than 5.0 mg/1 if due to natural
conditions.
(1) An last ancaneou. reading may be as laW as 4.0 ug/1 but
the daily average must be 5.0 ug41 o
(2) Applies only to unfiltered Water supplies.
1i

PROPOSED AMENDMENT TO THE LITTLE TE msSEE RIVER BASIN _.
MD SAVANNAH RIVER DRAINAGE AREA.- — -
SCHEDULE OF CLASSIFICATIONS AS REFERENCED IN TIME 15A
NORTH CAROLINA A➢IffMSTRATIVE CODE 2B .0303
Existing Description of Proposed
of Stream Description Class Proposed segment Class
L__________ ___________
Fork Tuckasegea River Frw scarce in Thorpe Lake WS-III&B Same WS-III&B HQW
jnrpe Lake belox eleva- Backeater at Elevation 3492 HSL
an 3492 HSL) to Thorpe Dan
ticane Creek (Hurricane Fran source to Thorpe Lake, WS-III Tr Same WS-III Tr HCW
Ike) West Fork Tuckasegee River
Lel Broach From source to Hurricane Creek WS-III Same WS-III HQW
12

y4 �'
'"\ -1 RECEIVED
t Q ( 1 ` R'H8HINprON OFFICE
4 MAY 2 71994
0
D. E. M.
OUNCEHENT OF
OPOSAL TO RRCLASSIFY :�
wP`vN f�\VAN THORPH VOIRRAND HURRICANE BRANCHk.
pgH„ IN JACKSON COUNTY '
�� (NOR H CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�The N.C. Department of Environment, Health and Natural Resources on behalf of the
Environmental Management Commission (EMC) is requesting written comments on a
proposed stream reclassification. The area being considered for a surface water classification
change is Thorpe Reservoir (also known as Lake Glenville) and its tributary Hurricane Branch
in Jackson Cotmty. The change is being considered because these waters have Excellent
water quality. The next sections of this announcement will detail the proposal, what it means
and details on the public hearing and how you can provide comments.
Proposed Stream Classification Change
Segment: Thorpe Reservoir and Hurricane Branch
Classification Change Proposed: WS-III&B and WS-III Tr to WS-III&B HQW and
WS-III Tr HQW (HQW = High Quality Waters)
Reason for Change: to protect existing Excellent water quality
Summary of Requirements Associated with High Quality Waters
Discharges: New or expanded wastewater discharges to waters classified HQW must
provide advanced treatment in order to meet restrictive effluent limitations. No new
discharges from single family residences are allowed.
Stormwater: Within one mile and draining to waters classified HQW, large
development activities (those that disturb an acre or more of land and therefore are
required to submit a Sedimentation and Erosion Control Plan to the Division of Land
Resources) must either be low density or use accepted stormwater runoff controls.
Low density developments are defined as one house per acre for residential
developments or 12 percent built-upon area for other types of development.
PURPOSE: The purpose of the hearing and the written comment period is to receive
comments on the proposed reclassification from interested people. The written
comment period will be open until September 17, 1994. The EMC is
interested in comments in favor of and opposed to the proposed changes. The
EMC may make changes in final rules without renotice and rehearing. They
may do this if the final rules are a logical outgrowth of the public hearing and
public comment proceedings, and as long as the adopted rules do not differ
substantially from the proposed rules. The EMC may adopt final
management requirements, rules and classifications that are more or less
stringent than those being noticed. (See NCGS 150B 21.2 for this
authority.) The EMC must determine that the final adopted rules are a

C)
logical outgrowth of the notice, announcement, public�bea,rmg and public
comments received. All interested and potentially affected persons are
strongly encouraged to read the entire announcement and supporting
information and make comments on the proposal presented. The proposed
effective date for final mles for these proposed changes is March 1, 1995.
TIME: 7:00 p.m.
DATE: August 18, 1994
LOCATION: Blue Ridge School
Auditorium
Highway 107
Glenville, NC
HOW TO You may submit comments, statements, data and other information in
PROVIDE writing prior to, during or after the hearing but no later than September
COMMENTS: 17, 1994. You may also present verbal comments at the hearing(s). The
Hearing Officer may limit the length of time that you may speak so that
all those who wish to speak may have an opportunity to do so. We
encourage you to submit written comments.
FOR MORE You may obtain further explanations and details of the proposed
INFORMATION: reclassification by writing or calling:
Suzanne Keen
DEHNRIDivision of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
1 [phone]
DATE A. Preston Howard, Jr., P.E.
Director, Division of Env Management

l M I
WFlSHINo ONE OFFICE
MAY 2 71994
OUNCffiNENT OF PROPOSAL TO RECLASSIFY .` 1
TEORPE RESERVOIR AND EORRICANE ERANCR'P,
o PSy,ED- IN JACKSON COUNTY
rolip�r'olposed
NOR CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
e N.C. Department of Environment, Health and Natural Resources on behalf of the
vironmental Management Commission (EMC) is requesting written comments on a
stream reclassification. The area being considered for a surface water classification
change is Thorpe Reservoir (also known as Lake Glenville) and its tributary Hurricane Branch
in Jackson County. The change is being considered because these waters have Excellent
water quality. The next sections of this announcement will detail the proposal, what it means
and details on the public hearing and how you can provide comments.
Proposed Stream Classifmdon Change
Segment: Thorpe Reservoir and Hurricane Branch
Classification Change Proposed: WS-III&B and WS-III Tr. to WS-III&B HQW and
WS-Ill Tr HQW (HQW = High Quality Waters)
Reason for Change: to protect existing Excellent water quality
Summary of Requirements Associated with High Quality Waters
Discharges: New or expanded wastewater discharges to waters classified HQW must
provide advanced treatment in order to meet restrictive effluent limitations. No new
discharges from single family residences are allowed.
Stormwater: Within one mile and draining to waters classified HQW, large
development activities (those that disturb an acre or more of land and therefore are
required to submit a Sedimentation and Erosion Control Plan to the Division of Land
Resources) must either be low density or use accepted stormwater runoff controls.
Low density developments are defined as one house per acre for residential
developments or 12 percent built-upon area for other types of development.
PURPOSE: The purpose of the hearing and the written comment period is to receive
comments on the proposed reclassification from interested people. The written
comment period will be open until September 17, 1994. The EMC is
interested in comments in favor of and opposed to the proposed changes. The
EMC may make changes in final rules without renotice and rehearing. They
may do this if the final rules are a logical outgrowth of the public hearing and
public comment proceedings, and as long as the adopted rules do not differ
substantially from the proposed rules. The EMC may adopt final
management requirements, rules and classifications that are more or less
stringent than those being noticed. (See NCGS 150B 21.2 for this
authority.) The EMC must determine that the final adopted rules are a

rn<N
logical.outgrowth of the notice, announcement, publiciheasing and public
comments received. All interested and potentially affected persons are
strongly encouraged to read the entire announcement and supporting -
information and make comments on the proposal presented. The proposed
effective date for final rules for these proposed changes is March 1, 1995.
TIME: 7:00 p.m.
- 4
DATE: August 18,1994
LOCATION: Blue Ridge School
l Auditorium
Highway 107
Glenville, NC
HOW TO You may submit comments; statements, data and other information in
PROVIDE writing prior to, during or after the hearing but no later than September
COMMENTS:- 17, 1994. You may also present verbal comments at the hearing(s). The
Hearing Officer may limit the length of time that you may speak so that
all those who wish to speak may have an opportunity to do so. We
encourage you to submit written comments.
FOR MORE You may obtain further explanations and details of the proposed
INFORMATION: reclassification by writing or calling:
Suzanne Keen
DEHNR/Division of Environmental Management
P.O. Box 29535
Raleigh, NC 27626-0535
[phone]
DATE A. Preston Howard, Jr., P.E.
Director, Division of Env Management
i
i
l

SOC PRIORITY ROJECT: No X
IF YES , SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Randy Kepler
DATE: July 22 , 1993
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Jackson
PERMIT NUMBER NCGO500127
PART I - GENERAL INFORMATION
1. Facility and Address: Thorpe Hydroelectric Station
Nantahala Power and Light Co.
Route 3 , Box 115
Tuckasegee, N. C. 28783
2 . Date of Investigation: July 21, 1993 0\
3 . Report Prepared By: W. E. Anderson Vn O
4. Persons Contacted and Telephone Number: Richard Conley
704-293-5137
5 . Directions to Site: From the intersection of NC 107 and NC 281,
travel south approximately 3 mi.I.es on NC 107 to the Thorpe
Hydroelectric Station on the left.
6. Discharge Point(s) , List for all discharge points:
Latitude: 350 14' 03" Longitude: 830 07' 30"
Attach a USGS map extract and Indicate treatment facility site and
discharge point on map.
U. S.G.S. Quad No. Glenville U. S .G. S. Quad Name 176-NW(G6NW)
7. Site size and expansion area consistent with application? N/A
Yes No If No, explain:
Page 1

n C)
8. Topography (relationship to flood plain included) : Steep, above
the flood plain-this is a hydro power generator.
9 . Location of nearest dwelling: Greater than 500 feet.
10. Receiving stream or affected surface waters: Tuckasegee River
a. Classification: WS-III & B-Trout.
b. River Basin and Subbasin No. : Little Tennessee 040402
C. Describe receiving stream features and pertinent downstream
uses: There is a small hydro power lake downstream on the
west fork of the Tuckaseigee River.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a. Volume of wastewater to be permitted N/A MGD (Ultimate
Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? N/A
C. Actual treatment capacity of the current facility (current
design capacity N/A
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
N/A
e. Please provide a description of existing or substantially
constructed wastewater treatment_ facilities: N/A
f. Please provide a description of proposed wastewater treatment
facilities: N/A
g. Possible toxic impacts to surface waters: N/A
h. Pretreatment Program (POTWs only) : N/A
in development approved
should be required not needed
2 . Residuals handling and utilization/disposal scheme: N/A
a. If residuals are being land applied, please specify DEM
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
Page 2

C . Landfill:
d. Other disposal/utilization scheme (Specify) :
3 . Treatment plant classification (attach completed rating sheet) :
4. SIC Codes(s) : 4911
Wastewater Code(s) of actual wastewater, not particular facilities
i . e. , non-contact cooling water discharge from a metal plating
company would be 14, not. 56.
Primary 14 Secondary
Main Treatment Unit Code: 000-0
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only)? N/A
2 . Special monitoring or limitations ( including toxicity) requests:
None.
3 . Important SOC, JOC, or Compliance Schedule dates: (Please
indicate) N/A
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all
of the non-discharge options available. Please provide regional
perspective for each option evaluated.
Spray Irrigation: N/A
Connection to Regional Sewer System: N/A
Subsurface: N/A
Other disposal options: N/A
5. Other Special Items: None.
Page 3

PART IV - EVALUATION AND RECOMMENDATIONS
This is a discharge of cooling water associated with a
hydroelectric power generator. The cooling is intrinsic to the
turbine/generator combination and cannot be separated from the
flow through the turbine.
Biocide evaluation/approval is needed for this discharge.
Issuance of the Certificate of Coverage is recommended.
Sign re of Report Preparer
esteer Qua ity Regional Supervisor
te
Page 4

GLENV),�I-L C)OADRANCLE
��,, RTH CAROLINA
7.5 MINUTE SERIES (TOPOGRAPHIC) 6-NW `c`e
io '03 vaa o 111T 105 83 y 31
m57 �� Ced r3V -S 35°�s
J i
Q�errSRnob
� o wrx i
MS s
d �
Al
3 iA ' J VII
a (/ �l q,
alki
jill
5600]J
e
se98
��,,c��rot�t� � t•f� ti�yury`§h ' _. "�.�� �� � ::N �� _t\C

State of North Carina r,
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
(� Jonathan B. Howes, Secretary ID E H N FI
A. Preston Howard, Jr., P.E., Director
JUL 903
July 1, 1993
_ IwIv OUPI (` :i tl0i� i
)„ Ail :V°Il zlr lO: �I OII ICF, „�
N.E. Tucker, Jr. , Exec. Vice President Subject: NPDES Permit Application
Nantahala Power and Light Company NPDES Permit NO.NCQJ500127
Route 63, Box 115
Tuckasegee, NC 28783 Thorpe Hydroelectric Station
Deaf' Mr. Tucker
Jackson County
This is to acknowledge receipt of the following documents on June 24, 1993:
Application Form
_ Engineering Proposal (for proposed control facilities) ,
Request for permit renewal,
Application Processing Fee of $400.00,
Engineering Economics Alternatives Analysis,
Local Government Signoff,
_ Source Reduction and Recycling,
_ Interbasin Transfer, _
_ Other—,
The items checked below are needed before review can begin:
_ Application Form ,
Engineering proposal (see attachment) ,
Application Processing Fee of
_ Delegation of Authority (see attached)
_ Biocide Sheet (see attached)
_ Engineering Economics Alternatives Analysis,
Local Government Signoff,
_ Source Reduction and Recycling, -
_ Interbasin Transfer,
_ Other
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-o nsumer paper
1 V�

C", (7
If the application is not made complete within thirty (30) days, it will be
returned to you and� may be resubmitted when complete.
This application has been assigned to Randy Kepler
(919/733-5083) of our Permits Unit for review. Youwi e advised of any
comments recommendations, questions or other information necessary for the
review of the application.
I am, by copy of this letter, requesting that our Regional Office
Supervisor prepare a staff report and recommendations regarding this
discharge. If you have any questions regarding this applications,
please contact the review person listed above.
S ' ere y,
Coleen H. Sullins, P.E.
CC: Asheville Regional Office

$ CAI obis- z
State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh,North Carolina 27611
James G. Martin, Governor A. Preston Howard,Jr.,P.E.
William W. Cobey,Jr.,Secretary. - Acting Director
NOTICE OF INTENT
National Poll lant D'�-,huge Elimination System
Application for Coverage under General Permit NCG500000;Non-contact cooling water,boiler bluwdown,
cooling towu blowdown,condensate,and similar point source discharges.
I. Name,Address,!. tion,and telephone number of facility reTuesting'rermiL
A. Official Name: Thorpe Hydroelectric Plant
13. Mailing Address: - lanl halo 2eaaer and Light Company
(1)Suest Address; Route 63 Box 11S
(2Xay; Tuckasegee
(3)State; N2r'th Carolina
(4)Zip; 28783
(5)County; Jackson
C. Location. (A=h map delineadng general fa,ility location)
(I)Sueet Address; Highway 107
(2>City; Tucka segee -
(3)State; North Carol i na
(4)County; Jackson
D. Telephone Number; ( 704) 293-5137
2. Facility Contact
A. Name: Richard Conley
B. Title; Plant and Area Superlatondent n
C. Company Name; Nantahala Power and Light Company
D. Phone Number, ( 704 ) 29-3-5137
3. Application type(check appropriam selection):
A. New or Proposed; t
B. E:sting; �—yv pb.rcusly yVr!=d,pm- -;:de pertt numb: -o
and issue date
C. Modification; �a
(S)cserihe the nature of the modification): c'
_r
-i
4. Description of discharge
A.Please stare the number of separate discharge points,
I,B ; 2,[] ; 3,[] ; 4,[] ; _,[].
13.Please describe the amount of wastewater being discharged pc,-each separate discharge point I:_
gallons per day (gpd) 2L- (gpd) 3, (gpd) 4� (gpd) 2'' @ 10ps I.
Page I

C. Check the duration and fregr—r(cy of the discharge,per each separate dischar8:7inc
1. Continuous:_ l( ; 1 )
2. Intermittent (please describe): Di scharge when plant is ruoni nq
3. Seasonal(check month(s) the discharge occurs):January IX1;February [p; March MX April lg1,
l&y Q];June [yl;July M;August X]; September 1X1;October M:November M; December(tl.
4. How many days per week is there a dischatge?(check the days the discharge occurs)
'Monday V], Tuesday Pt1, Wednesday.R, 'Thursday(`,Uriday M, Saturday CA, Sunday 91.
5. How much of the volume discharged is treated?(state in percent) '% See F below
D. What type of wastewater is discharged per separate discharge point(place check r:;xt to correct type):
1. Noncontmel cooling water, _X
2. Boiler blowdown;
3. Cooling tower blowdown;
4. Condemmm;
5. Odra(plemr desalbe);
Please list any known pollutants that are present in the discharge, per each separate discharge point (if
IppGcable):
E. Please describe the tvpe of process the cooling water is being discharged from,per separate discharge point
(i.e.compressor,boiler blowdown,cooling tower blowdown,air conditioning unit,ctc.):
Hydro Generator cooling coils .
F. Please check the type of chemical added to the wastewater for treatment or other,per separate discharge
point:
1. Biocides;
2. Corrosion inhibitors; _ X Note.: Approximately 32 ounces of Sand-
3. Chlorine; Banum added to cooling water once
4. Algaemnuol; each year.
5. Other(please describe);
6. None;
If 1,2,3,4,or 5 was checked,please state the name and manufacturer of the chemical additive. Also include
a completed Biocide 101 form,and manufacturers'information on the additive with the application for the
Division's review. Chemical Additive: Sand-Banum See attached MSDS sheet
Manufacturer: American Sand-Banum Company, Inc.
G. Is there any type of treammm being provided w the wastewater before discharge (i.e. retention ponds,
settling ponds, etc.); if yes, please describe. Give design specifics (i.e. design volume, retention time,
surface area, etc.). Existing treatment facilities should be described in detail and design criteria or
operational data should be provided(including calculations) to ensure that the facility can comply with
requirements of the General Pepnit None
NOTE: Construction of any wastewater treatment facilities require submission of three (3) sets of plans and
specifications along with their application. De, ,;n of treatment facilities must comply with requirement
!SA NCAC 2H .0138. If construction applies to the discharge, include the three sets of plans and
,pecifications with the application.
S. What is the mum,of the business applying for this pennit? Investor owned electric utility
6. Nameofreceivingwaten West Fork Tuckasegee RivetClassifrcadon:
(Anach a USGS topographical map with all discharge points)clearly marked)
Page 2

is the discharge directly to the receiving water? O',N� Y
If no, state specifically thr" charge pamL Mari clearly the pathway m_Crnnial receiving waters on the
site map. ('This includes�d tE the pathway of the storm sewer m its dis ge point, if a storm sower is the
only viable means of discharge.)
8. Please address possible non-discharge alternatives for the following options:
A. Connection to a Regional Sewer Collection System;
Due to the location and construction
B.Subsurface Disposal; of this facility none of these alter-
natives are possible.
C. Spray Irrigation;
9. 1 certify that I am familiar with the information contained in the application and that to the best of my knowledge
and belief such information is time,complete,and accurate.
Printed Name of Person Signing N. E. Tucker Jr
Title. Executive Vice President
Date Application Signed May 5, 1993
Signature of Applicant
NOR'rH CAROL iNA GENFRAi STATIITF 143•�`5.6R fi) PROVIDES THAT•
Any person who knowingly makes any false suaemer;t,representation, or certification in any application, record,
report,plan or other document filed or required to be maintained under Article 21.or regulations of the Environmental
Management Commission implementing that Article,or who falsifies,=p=with or knowingly renders inaccurate
any recording or monitoring device or method required to be operated or maintained under Ardc:e 21 or ral;m1mons of
the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor
punishable by a fine not to exceed$10,000, or by imprisonment not m exceed six months, or by boat. (18 U.S.C.
Section 1001 provides a punishment by a fine of not more than$10,000 or imprisonment not more than years,or
both,for a similar offense,)
Notice of Intent must be accompanied by a check or money order for$400.00 made payable to the North Carolina
Department of Environment,Health,and Natural Resources. Mail three(3)copies of entire package m:
Division of Environmental Management
NPDES Permits Group
Post Office Box 29535 -
Raleigh, North Carolina 27626-0535
Page 3

U.S. DEPARTMENT OF LABOR Fo,m APPro.ee
O.c ,Patio;nal Safety and Health Adminisr^tion OMB No. aa.nlaev
MATL��rI1�L SAFETY DATA SKET
Required under USDL Safety and Health Regulation, for Ship Repairing,
Shipbuilding, and Shipbreaking (29 CFR 1915, 1916, 1917)
SECTION
MANUFACTURCR's HnM 1- ' ail—jt'rFi T Qi9(iUi1TCU.—Ili
yL't?A f97 p EMERGENCYTELEVlHO7�E.IfJ.O. /
ADDRESS/NI,,RbG Srreel, Clyliar r, I ''/,1 '1y�r��.�-(rr( �� ���� /�•� �_`"-� r'%C3
CI li G LNArrIE A1105 NOIf��S�"l4�o7Q
/)��• TIl O NgfdEA DSVNONYMS
crlcrar AL FAMI t" ' i✓ �� ^, 'l�-'ll tm!" m
/ U � �D/tic' r i1 •" 'Pii/IS
SECTION II HAZARDOUS INGREDIENTS
PAINTS,PRESERVATIVES, SOLVENTS % TLV TLV .
URInL ALLOYS AND METALLIC COATINGS h
PIGMENTS Whitt)
BASE METAL
CATALYST
ALLOYS -
bGHICLE
_ METALLIC COATINGS
SOLVENTS FILLER METAL
PLUS COATING OR CORE FLUX
ADDITIVES
OTHERS
OTHERS
HAZAnDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES y, TLV
_ IUnI s)
I I SECTION III - PHYSICAL DATA
B OILING POINT PF.) S{•f.�(�lyJ , ,} q a SPECIFIC GRAVITY IH O=1I 1
VAPOR PRESSURE (mm Hg.( 7 PERCENT,VOLATILE /]
By VOLUME I:) /// I-�(,✓ .5 s
VAPOR DENSITY (AIR-1) 7 EVAPORATION RATE
I =ll
SOLUBILITY IN WATER /.)[t
APPEAnANCEANO ODOR J ?!"V� /7J-\C�L(.J l- �l($C'c'fJ,S. /��l X'1t%hP_ .GU II"/1 I`CPJIl7J U5 •'+.LI'
SECTION IV FIRE AND EXPLOSION HAZARD DATA
FLASH POINT (Method used) FLAM1irAq L MITS Lol Let .
EXTINGUISHING MEDIA
SPECIAL FIRE FIGHTING PROCEDUq ES f T
UNUSUAL FIRE ANo EXPLOSION Hg2gq 5
' Gr✓ l'Cd lJt /;� /[. G�2• >`' I�C,L' �' /IC $y'L'E'.'
PAGE (1) (Continued on reverse Side)
form OS I1Ad0

N.C. Dept, NRCD
AUG 04 1989
Winston-Sp!"
State of North Carolina Regional Office
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611 1/$on
James G. Martin, Governor Sa� R. Paul Wilms
William W. Cobey, Jr., Secretary Director
August 2,1989 R 17 C. h'11/f' f.)
VJpterQoflily ocOcn
Mr.Tom Drake /
502 Dallas Drive
Huntersville,NC 28078
,Asheville itc;=rr1I Gffice
Asheville, North farolila
Dear Mr. Drake:
The Environmental Sciences Branch of the Division of Environmental Management
Water Quality Section sampled Thorpe Reservoir on July28, 1988,as part of the State's
Ambient Lakes Monitoring Program. As requested,I am transmitting the results of that
sampling effort to you. I hope it will be of use as you pursue a High Quality Water designation
for this waterbody. 1 have also enclosed a summary of the 1988 Ambient Lakes Monitoring work
for your general information. That summary describes the various types of samples that we
collect at lakes, such as nitrogen and phosphorus, chlorophyll a fecal coliform bacteria, etc.
The final enclosure is an excerpt from the Division of Environmental Management report Water
ualit Proeress in North Carolina: 1 8_9 6-1987 305b Report. It describes water quality
conditions in the Little Tennessee River basin.
Four stations in Thorpe Reservoir (Figure 1) were sampled for several water quality
parameters (see attached tables). Samples were collected from the surface (labeled SUR in the
table)and from vertical composites of the photfc zone. The photic zone is defined as the upper
portion of the water column having sufficient light penetration for photosynthesis. Additional
nitrogen and phosphorus samples were collected just above the lake bottom(BOT in the table),
because nutrients tend to accumulate in deeper waters when a lake stratifies.
Oxygen and temperature data indicate that Thorpe Reservoir was stratified. In other
words,dissolved oxygen and temperature changed throughout the water column, Such
conditons are common during summer,when the sun has warmed a lake's surface and when
decomposer organisms have depleted the oxygen in deeper waters. Surface pH levels were
within the state's standard range of 6.0 to 9.0 standard units at all stations. Measurements
indicated that the pH of bottom waters was usually less than 6.0. Other lakes in the North
Carolina Blue Ridge region tend to be slightly acidic, and the levels observed in Thorpe
Reservoir do not constitute a water quality problem. Water transparency(Secchi)ranged from
3.2 to 3.5 meters. Good water transparency is typical of the state's mountain lakes,and Thorpe
Reservoir is no exception.
Fecal coliform bacteria were detected at stations LTNOI5L, LTNO15P, and LTNO15R,
but did not exceed the state standard for recreational swimming waters (200/100 ml). Turbidity
PO &m 27687, R:dcis,, Nnrth Camllna 27611 7687 Telephone 919733 M15

did not exceed the state standard for lakes and reservoirs of 25 NTU. Chlorophyll a values
were well below the state standard of 40 µg/I. Nutrients(nitrogen and phosphorus)were low,
typical for lakes in this region.
Secchi transparency, chlorophyll a and nutrient data were used to calculate the North
Carolina Trophic State Index (NCTSI). The NCTSI is the State's primary tool for evaluating
the trophic status,or nutrient enrichment, of lakes. This information is of great interest to the
State. Eutrophication, which is the process of increasing nutrient enrichment, and thus the
ability to support the growth of nuisance algae and other aquatic plants, is a significant threat
to the quality of many North Carolina lakes. Data from 1988 provide a NCTSI score of-5.4 for
Thorpe Reservoir,indicating oligotrophic conditions. In other words,nutrient enrichment is not
a problem for this lake.
Phytoplankton samples were also collected at Thorpe Reservoir. The physical and
chemical data indicated that algal activity was minimal. However, you may request analysis
of these samples by calling the Biological Assessment Group(Trish MacPherson) at(919)733-
6946.
The initial screening of Thorpe Reservoir showed that overall water quality was good.
The lake will continue to be included in the Ambient Ickes Monitoring schedule and will be
monitored at least once every five years. It is of note that the 1988 sampling was conducted
during a drought when the lake was approximately 20 feet below normal pool elevation.
Because these were not representative environmental conditions,Thorpe Reservoir will be
monitored again this summer. Please feel free to contact me at(919) 733-6510 for additional
details or if you have questions regarding any of the information in this summary. I appreciate
your interest in the water quality of Thorpe Reservoir.
Sincerely,
Maryl L.Jaynes
Environmental Biologist
cc: Ken Eagleson
Jimmie Overton
Jay Sauber
Regional WQ Supervisor.`a
Reference: Subbasin 040402 -

C) (�
THORPE
RESERVOIR
LTN
DIS R
LTAI
OI SA
P
LTN
O 15N
LTN
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C` C-11
THORPE RESERVOIR MONITORING DATA--JULY 28,1988
Physical Profiles:
DEPTH D.O. TEMP PH COND SECCHI
STATION TIME (mM (rnal) (0c) (S.oJ fuMhos) (m) .
LTNO15R 1050 0.15 8.6 24.5 6.0 18 3.45
1.0 9.0 24.4 6.3 18
2.0 9.9 24.3 6.3 18
3.0 10.7 24.2 6.3 18
4.0 11.5 24.1 6.4 19
5.0 11.8 23.9 6.4 20
6.0 11.7 22.8 6.4 20
7.0 11.2 22.2 6.2 21
8.0 10.5 21.4 6.1 20
9.0 9.1 20.6 6.0 20
10.0 6.4 19.7 5.9 20 ,
11.5 5.1 18.3 5.6 21
LTNO15P 1110 0.15 8.1 24.4 6.9 20 3.5
1.0 8.9 24.4 6.9 18
2.0 9.8 24.2 6.8 19
3.0 10.5 24.2 6.8 19
4.0 11.6 24.2 6.8 19
_ 5.0 11.9 24.1 6.7 19
6.0 11.7 22.9 6.7 20
7.0 11.5 22.1 6.6 19
8.0 6.6 21.3 6.2 20
9.0 5.9 20.7 5.9 21
10.0 5.4 19.8 5.8 21
15.0 2.2 12.4 5.6 21
20.0 2.9 1o.a 5.6 21
21.5 2.4 10.0 5.6 23
LTNO15N 1135 0.15 8.0 24.3 6.8 19 3.2
1.0 8.6 24.3 6.8 19
2.0 9.6 24.2 6.9 18
3.0 10.6 24.1 6.9 19
4.0 11.2 24.0 6.9 19
5.0 12.4 23.7 6.9 19
6.0 12.8 22.9 6.8 19
7.0 13.2 21.7 6.6 19
8.0 12.5 20.9 6.3 19
9.0 10.7 20.3 6.0 19
10.0 10.2 19.7 5.9 20
12.0 5.8 17.7 5.6 21
LTNO15L 1150 0.15 8.2 24.4 6.8 18 3.2
1.0 8.9 24.4 6.7 19
2.0 9.9 24.2 6.7 18
3.0 10.8 24.0 6.7 - 18
4.0 11.7 23.9 6.7 18
5.0 12.5 23.9 6.7 18
6.0 13.5 22.7 6.7 18
7.0 13.2 21.9 6.5 18

8.0 13.2 21.2 6.2 19
9.0 9.8 20.5 6.0 19
10.0 8.0 19.7 5.8 20
11.0 7.9 18.6 5.6 22
Chemical Parameters:
ALK TS TSS TURB CHL NH3 TKN NO3 TP PO4 Fecal
STATION (W) lmWl (MCO) (NT111 fucM (md1) (m31) (myll (mv➢ (0,gyp_(100m11
LTN015R 5.0 27 5 1.9 4 0.05 <0.1 <0.01 0.01 <0.01 5
I. BOT 0.07 0.1 0.05 0.01 <0.01
LTN015P 6.0 ns ns 1.7 2 0.01 0.1 <0.01 0.01 <0.01 3
I. BOT 0.23 0.3 0.07 0.01 <0.01
LTN015N 5.0 26 3 1.6 5 0.01 0.1 <0.01 0.01 <0.01 <1
I. BOT 0.04 <0.1 0.05 0.01 <0.01
LTN015L 5.0 17 3 1.7 3 0.01 <0.1 <0.01 0.01 <0.01 45
" BOT 0.14 0.2 0.02 0.02 <0.01
I

North Carolina Lakes Program
Summary of 1988 Ambient Lakes Monitoring
Members of the Technical Services Branch and regional office monitors of
the Water Quality Section of the Division of Environmental Management
sampled 53 lakes in North Carolina between July and September of 1988 (Table
1). Each lake Was sampled once during this time period with the exception of
Kerr Lake, Falls of the Neuse Reservoir and Jordan Lake. These lakes were
sampled several times during the summer as part of ongoing diagnostic studies.
Physical measurements (dissolved oxygen, pH, conductivity, temperature)
were taken thj'oughout the water column at one-meter intervals. At some
shallow lakes,I the interval between measurements was decreased to 0.5 meters.
Secchi disk transparency and, in some cases, the depth of 1% light penetration
were measured at each station to estimate the depth of the photic zone (area of
photosynthesis).
Table 2 lists parameters for which samples were collected. "Regular
Parameters" are defined as alkalinity (and/or) acidity, residue; turbidity,
chlorophyll a, nutrients (ammonia, total kjeldahl nitrogen, nitrate + nitrite, total
phosphorus, and orthophosphate), and phytoplankton. These samples were
collected at all lake stations. Additional parametric coverage changed according
to a lake's classification and specific water quality characteristics. For example,
water supply lakes were sampled for a variety of parameters which may affect
their designated use. Selenium was sampled at reservoirs associated with fossil-
fuel power plants. Fecal coliform samples were collected at lakes classified for
primary recreation. The central laboratory in Cary performed all of the chemical
analyses.
Aquatic weed samples were collected and identified at lakes where they
appeared to be prevalent. Phytoplankton samples will be identified and
quantified on a priority basis. These biological samples were transferred to the
Biomonitoring Unit of Technical Services for analysis.
All data were collected in accordance with Standard Operating Procedures.
A quality assurance program was carried out to insure completeness and
correctness of data. Data may be accessed from EPA's STORET database. Requests
for specific information should be sent:
Ms. Mary Jaynes
North Carolina Division of Environmental
Management/Technical Services Branch
P.O. Box 27687
Raleigh, NC 27611
(919)-733-6510

Table 1. North Carolina Lakes Sampled in ,1988.
Region Lake Date Sampled
------------- ------------------------------ ------------
i
ASHEVILLE BEAR CREEK RESERVOIR 880726
ASHEVILLE CALDERWOOD LAKE 880727
ASHEVILLE CEDAR CLIFF RESERVOIR 880728
ASHEVILLE HIWASSEE RESERVOIR 880726
ASHEVILLE -LAKE CHEOAH 880727
ASHEVILLE LAKE EMORY 880727
ASHEVILLE LAKE SEQUOYAH 880727.
ASHEVILLE THORPE RESERVOIR 880728
. ASHEVILLE WOLF CREEK RESERVOIR 880726
FAYETTEVILLE HAMLET CITY LAKE 880713
FAYETTEVILLE HOPE MILLS LAKE 880712
FAYETTEVILLE JOHNS POND 880713
FAYETTEVILLE PAGES LAKE 880810
FAYETTEVILLE SALTERS LAKE 880712
FAYETTEVILLE WHITE LAKE 880720
RALEIGH BASS LAKE 880809
RALEIGH BUCKHORN RESERVOIR 880811
RALEIGH CORPORATION LAKE 880810
RALEIGH FALLS Or THENEUSE RESERVOIR 880808
RALEIGH HYCO LAKE 880719
RALEIGH JORDAN LAKE 880809
RALEIGH KERR LAKE 880914
RALEIGH LAKE BEN JOHNSON 880810
RALEIGH LAKE BENSON 880915
RALEIGH LAKE BUTNER 880810
RALEIGH LAKE MICHIE 880810
RALEIGH LAKE ORANGE 880810
RALEIGH LAKE RALEIGH 880915
RALEIGH LAKE WENDELL 880811
RALEIGH LITTLE RIVERRESERVOIR 880719
RALEIGH LOWER MDCASSM LAKE 880810
RALEIGH OLD TOWN RESERVOIR 880915
RALEIGH ROXBORO LAKE 880728
RALEIGH TOISNOT RESERVOIR 880811
RALEIGH UPPER MOCASSIN CLAKE 880810 i.
RALEIGH WHITE MILLPOND'.. 880726
RALEIGH WIGGINS MILLe RESERVOIR 880811
880817
WASHINGTON CFISA LAKE -
�WASHINGTON CLIFFS OF-THE 2IiUSE::LAKE 880714
- WASHINGTON LAKE ELLIS XM*,. - 880817
WASHINGTON LAKE WACKENA 880714
WASHINGTON LONG LAKE. .;. 880817
WILMINGTON GREENFIELD LAKE 880921
WILMINGTON LAKE TABOR 880720
WINSTON-SALEM BELEWS LAKE 880817
WINSTON-SALEM HIGH POINT LAKE 880817
WINSTON-SALEM KERNERSVILLE-RESERVOIR 880817
WINSTON-SALEM LAKE BRANDT 880823
WINSTON-SALEM LAKE CAMMACK (BURLINGTON) 880816
WINSTON-SALEM LAKE HUNT 880816
WINSTON-SALEM LAKE ROXBORO 880823
WINSTON-SALEM OAK HOLLOW LAKE 880817
WINSTON-SALEM REIDSVILLE LAKE 880B16

Table 2. Parametric Coverage. '
REGULAR* WATER SUPPLY**
LAKE PARAMETERS PARAMETERS FECALS SELENIUM
___ ______ --------
Bass Lake X x
Bear Creek Reservoir x x
Belews Lake X X X
Buckhorn Reservoir X x
Calderwood Lake x
Catfish Lake x
Cedar Cliff Reservoir X x
Cliffs of the Meuse Lake X X
Corporation Lake X x
Falls of the Meuse Reservoir X x- X
Greenfield Lake X
Hamlet City Lake X X
High. Point Lake X X
Hiwassee Reservoir X X x
Hope Mills Lake x x x
Hyco Lake x X
Johns Pond X
Jordan Lake x x X
Kernersville Reservoir X X
Kerr Lake X X
Lake Ben Johnson x X
Lake Benson X X
Lake Brandt X X
Lake Butner X X
Lake Cammack (Burlington) X X
Lake Cheoah X
Lake Ellis Simon X
Lake Emory X
Lake Hunt X X
Lake Michie X X
Lake Orange X x
Lake Raleigh X x
Lake Roxboro X X
Lake Sequoyah X x
Lake Tabor X X
Lake Wackena X
Lake Wendell X
Little River Reservoir X X
Long Lake x
Lower Mocassin Lake X x
Oak Hollow Lake x X
Old Town Reservoir x X
Pages Lake x x
Reidsville Lake x X
Roxboro Lake X X
Salters Lake x
Thorpe Reservoir X X
Toisnot Reservoir x X
Upper Mocassin Lake x x
White Lake X
White Millpond X
Wiggins Mill Reservoir X X
Wolf Creek Reservoir X X
*Alkalinity/Acidity, Residue, Turbidity, Ammonia, Nitrate + Nitrite, Chlorophyll a,
Total Kjeldahl Nitrogen, Total Phosphorous, Orthophosphate, Phytoplankton
**Chloride, Hardness, Cd, Cr, Cu, Ni, Pb, Zn, Fe, No, Hg

r-
WATER QUALITY PROGRESS
IN NORTH CAROLINA
198&1987 305b REPORT
NORTH CAROLINA DEPARTMENT QF
NATURAL RESOURCES AND COMMUNITY DES ELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
RALEIGH,NORTH CAROLINA
JULY 1988
ki
MThis report has been approved for release: R. Paul i rre,VirectoF

station is on the Mwassee River above Murphy. One other is on the Valley River at Tomotla.
Three ambient benthos stations are present (Fires Creek, Hiwassee River at US 64 and Valley
River at US-19 Bypass).
Of the 986miles of streams in the basin, 78.1% were supporting, and 10.4% were par-
tially supporting their uses and 11.5% were not evaluated (Table 22). Nonpoint sources were
responsible for most of the partial support mileage (74%) with unknown (40.4%) sources and
roadside erosion (16.2%) being the most important source. Undifferentiated (30. %) and sedi-
ment(63.6%) were the most important causes of stream use impacts.
The I-Iiwassee River is raised as support-threatened the Valley River is raised as support:
threatened,and the Nottely River is rated as partially supporting. The monitored segments in the
basin,their causes and sources are listed in the back of the report in Appendix Table A-6,Appen-
dix Figure A-6.
Little Tennessee Basin
The Little Tennessee River Basin encompass 1,810 square miles in Macon, Swain;
Graham, Jackson, Clay, and Transylvania Counties in the Mountain region of the State. The
Little Tennessee and its major tributaries, the Nantahala, Tuckasegee, and Oconaluftee Rivers
flow into Fontana Lake. There are 2,583 miles of streams and 79 active permitted dischargers (9
municipal and 70 nonmunicipal) in the Little Tennessee River Basin.
The Little Tennessee River Basin has eight primary monitoring stations. There are two
stations on the Little Tennessee, one station on the Nantahala, two on Tuckasegee River, one
station on the Cheoah, one station on the Oconaluftee River and one on Cartoogechaye Creek.
Nine macrobenthos stations have been sampled.
Of the 2,583 miles of streams in the basin, 88.4% support, 10.8% partially support, and
0.4% do not support their designated uses. Only 0.2% were not evaluated. A total of 30.7% are
supporting threatened (Table 23). Nonpoint is the sole source of degradation in the basin with
unknown (55.9%), agriculture (18.4%), forestry (9.9%) and roadside erosion (10.6%) being most
important. The largest cause of degraded stream uses is sediment (82.1%) with undifferentiated
(10.0%)causes and metals (6.1%) less important.
Of the major stream segments in the basin, the Little Tennessee River is partially sup-
porting its uses from the State line to the Cullasaja River due to sediment. Below that conflu-
ence, the river is generally supporting - threatened. The Nantahala and Oconoluftee Rivers sup-
port their uses while the Tuskaseegee, Cullasaja and Cheoah Rivers are supporting - threatened.
Appendix Table A-7 and Appendix Figure A-7 provide more detailed information about other
monitored segments in the basin.
Lumber River Basin
The Lumber River Basin encompasses 3,343 square miles in ten counties in the Sand-
hills and Coastal Plain regions of the State. The Lumber River and its four major tributaries
(Drowning Creek, Big Raft Swamp, Big Swamp, and the Waccamaw River) flow into South
Carolina.
The Lumber River is a classic blackwater stream. Much of its drainage area is in the
Sandhills, a unique landfor n which provides habitat for many endemic and rare terrestrial and
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State of North Carolina &74
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary p E I--I N R
Preston Howard, Jr., P.E., Director
September 24, 1993
N.E. Tucker,Jr.
Route 63,Box 115
Tuckasegee,NC 28783
Subject: General Permit No. NCG500000
Thorpe Hydro Station
CDC NCG500127
Jackson County
Dear Mr. Tucker:
In accordance with your application for discharge permit received on June 24, 1993, we are forwarding
herewith the subject certificate of coverage to discharge under the subject state - NPDES general 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 US Environmental Protection agency dated
December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made,this certificate of coverage shall be final and binding.
Please take notice that this certificate of coverage is not transferable except after notice to the Division
of Environmental Management. The Divsion of Environmental Management may require modification or
revocation and reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Mr. Randy Kepler at telephone number
919/733-5083.
Sincerely,
Original Signed By
Coleen H. Sullins
A.Preston Howard,Jr.,P.E.
cc: Fran McPherson
Asheville Regional Office SEP 2 81993
P.O.Box 29535,Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

� n
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT,HEALTI-1,AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
GENERAL PERMIT NO NCG500000
CERTIFICATE OF COVERAGE No. NCG500127
TO DISCHARGE NON-CONTACT'COOLING WATER,COOLING TOWER AND BOILER SLOWDOWN,
CONDENSATE AND SIMILIAR WASTEWATERS UNDER THE
NATLONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statum 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,
Namahala Power and Light Company
is hereby authorized to continue operation of a treatment system for the generation of non-contact cooling waters,
boiler water blowdown or similar waste streams with the discharge of treated wastewater from a facility located at
Thorpe Hydro Station
on NC highway 107
Jackson County
to receiving waters designated as the Tuckssegee River in the Little Tennessee River Basin
in accordance with the effluent limitations,monitoring requirements,and other conditions set forth in Parts I,II,III
and IV of General Permit No.NCG500000 as attached
This certificate of coverage shall become effective September 24, 1993
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day September 21,1993
Original Signed By
Coleen H. Sullins
A.Preston Howard,Jr.,P.E.,Director
Division of Environmental Management
By Authority of the Environmental Management Commission

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