NC0021423_Permit (Issuance)_19970602

NPDBS DOCUWENT SCANNING COVER SHEET
NPDES Permit: NCO021423
Spruce Pine WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Engineering Alternatives Analysis
201 Facilities Plan
Instream Assessment (SOC)
Correspondence re: Mercury method
Permit History Date Range:
Document Date: June 2, 1997
THIS DOCUMENT IS PRINTED ON REUSE PAPER - IGNORE ANY CONTENT ON THE
REVERSE SIDE

State of North Carolina
Department of Environment, IVA
Health and Natural Resources • 1
Division of Water Quality
James B. Hunt, Jr., Governor VA
Jonathan B. Howes, Secretary p E H N F
A. Preston Howard, Jr., P.E., Director
June 2, 1997
Mr.Joe McKinney,Town Manager
Town of Spruce Pine
Post Office Box 189
Spruce Pine,North Carolina 28777-0189
Subject: NPDES Permit Issuance
Permit No. NCO021423
Town of Spruce Pine WWTP
Mitchell County
Dear Mr. McKinney:
In accordance with the application for a discharge permit received on March 7, 1997 (date FONSI
was submitted to Division), the Division is forwarding herewith the subject NPDES permit. This permit is
issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of
Aereement between North Carolina and the U.S. Environmental Protection Agency dated December 6,
1983.
In response to Mr. Carver's comment letter on the draft permit dated May 6, 1997, the Division's
response is summarized as follows:
- Copper and zinc monitoring frequencies have been changed from 2/month to quarterly,as they were in.
the previous permit. The Division's policy is to normally require 2/month monitoring for toxicants that
are not limited. However, review of Spruce Pine's effluent data for these two parameters indicate that
they are only minor pollutants of concern.
- Cadmium and mercury monitoring frequencies will remain at weekly which is standard Division policy
for toxicants that are limited.
There are two other changes to the draft permit which were not made as a result of the comment
letter,but were errors detected upon Division review of the draft permit. These changes are summarized as
follows:
-The ammonia-nitrogen limit of 12.0 mg/I specified on the effluent sheet associated with a permitted
flow of 0.6 MGD has been eliminated. This limit is specified appropriately on the effluent sheet
associated with a permitted flow of 2.0 MGD,but should not be included on the 0.6 MGD sheet.
-The monitoring frequency for ammonia-nitrogen on the effluent sheet associated with a permitted flow
of 2.0 MGD has been changed from weekly to 3/week as required in the Division's regulations(15A
NCAC 02B .0500).
If any parts,measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty(30)
days following receipt of this letter.This request must be in the form of a written petition,conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings,
Post Office Drawer 27447, Raleigh. North Carolina 27611-7447. Unless such demand is made, this
decision shall be final and binding.
Please take note that this permit is not transferable. Part fl,EA. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
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

Mr. McKinney a
June 2, 1997
Page 2
This pemut 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 or any other Federal or
Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Paul B. Clark at telephone number
[phone], extension 580.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E.
Enclosures
cc: Central Files
Asheville Regional Office,Water Quality Section
Mr. Roosevelt Childress, EPA
1Pemuts and'Engineering Unit
Facility Assessment Unit

Permit No. NCO021423
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Town of Spruce Pine
is hereby authorized to discharge wastewater from a facility located at
Spruce Pine Wastewater Treatment Plant
Pittman Road
Northwest of Spruce Pine
Mitchell County
to receiving waters designated as North Toe River in the French Broad River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
1I, 111, and IV hereof.
The permit shall become effective July 1, 1997
This permit and the authorization to discharge shall expire at midnight on December 31, 2001
Signed this day June 2, 1997
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0021423
SUPPLEMENT TO PERMIT COVER SHEET
Town of Spruce Pine
is hereby authorized to:
1. Continue to operate an existing 0.6 MGD wastewater treatment facility consisting of a bar
screen, influent pump station, grit removal, two primary clarifiers, trickling filter, two
aeration basins, secondary clarifier, chlorination, dechlorination, anaerobic digestor, and six
sludge drying beds located at Spruce Pine WWTP, Pittman Road, Northwest of Spruce Pine,
Mitchell County (See Part III of this permit), and
2. Install new bar screen and grit removal unit, new influent pumps, construct new oxidation
ditch, construct two new clarifiers, convert existing aeration basins into aerobic digestors,
convert existing anaerobic digestor to sludge holding tank, convert old primary clarifier to
chlorine contact tank, construct sludge truck loading facility and all necessary piping and
appurtenances to increase capacity of treatment facility to 2.0 MGD.
3. Discharge wastewater from said treatment works at the location specified on the attached
map into North Toe River which is classified Class C-Trout waters in the French Broad River
Basin.
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ROAD CLASSIFICATION SCALE 1 :24 000
PRIMARY HIGHWAY LIGHT-DLDY ROAD HARD OR 0 1 MILE
HARD SURFACE ® IMPROVED SURFACE
SECONDARY HIGHWAY 0 7000 FEET
HARD SURFACE E==Nmm= UNIMPROVED ROAD = _ —
1 0 1 KILOMETER
Latitude _3505535" Longitude 82°04'56"
Map # D10NE Sub-basin 04-03-06 CONTOUR INTERVAL 40 FEET
Stream Class C-Trout QUAD LOCATION
Discharge Class 01 58 55 19 03 Town of Spruce Pine
NCO021423
Receiving Stream North Toe River Mitchell County
Design 0 03 MGD Permit expires 12/31/01 WWTP

A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0021423
During the period beginning on the effective date of the permit and lasting until expansion to 2.0 MGD, the Permittee is authorized to discharge from outfall(s) .
serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS ",; LIMITS _ MONITORING' REQUIREMENTS;
Monthly;;,. Weekly ' Daily-, , - Measurement Sample - Sample
Avera e: Average Maximum Fre uenc k,n`.T e , Location'
Flow 0.6 MGD Continuous Recording I or E
BOD 5-day, 20°C2 30.0 mg/I 45.0 mg/I 3/week Composite E,I
TSS2 30.0 m /I 45.0 m /I 3/week Composite E,I
NH3-N, (April 1 - October 31 Weekly Composite E
NH3-N November 1 - March 31 Weekly Composite E
Dissolved Oxygen 3/week Grab E,U D
Fecal Coliform (geometric mean 200/100 ml 400/100 ml 3/week Grab E,U D
Temperature Daily Grab E U D
Total Residual Chlorine 97.0 u /I 3/week Grab E
Conductivity Weekly Grab U D
Total Nitrogen (NO2+ NO3+TKN) Semi-annually Composite E
Total Phosphorus Semi-annuallv Composite E
Chronic Toxicity 3 Quarterly Composite E
Cadmium 19.0 u /I Weekly Composite E
Copper Quarter) Composite E
Zinc Quarter) Composite E
Mercury 0.6 u I Weekl Composite E
Notes:
1 Sample locations: E - Effluent, I - Influent, U - Upstream 150 yards upstream of discharge, D - Downstream 250 yards downstream of
discharge. Instream monitoring shall be grab samples taken 3/wk (Jun-Sep) and 1/wk (Oct-May).
2 The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal).
3 Chronic Toxicity (Ceriodaphnia), P/F, 2.1 %; February, May, August, and November; See Supplement to Effluent Limitations and Monitoring
Requirements Page - Special Conditions for flow of 0.6 MGD.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NC0021423 '
J
During the period beginning on expansion to 2.0 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001.
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT�r CHARACTERISTICS z LIMITS MONITORING REQUIREMENTS
� s <- r
E
Monthly,,; Weekly Duly Measurement Sample Sample
Average -Maximum: ,.�Frequenc ��`n.a•
T . e . ra. "".. Location
Flow 2.0 MGD Continuous Recording I or E
BOD 5-day, 20°Cz 30.0 mg/I 45.0 mg/I 3/week Composite E,I
TSS2 30.0 m /I 45.0 m /I 3/week Com osite E,1
NH3-N, (April 1 -October 31 12.0 m /I 3/week Composite E
NH3-N November 1 - March 31 3/week Composite E
Dissolved Oxygen 3/week Grab E,U D
Fecal Coliform (geometric mean 200/100 ml 400/100 ml 3/week Grab E,U D
Temperature Daily Grab E U D
Total Residual Chlorine 28.0 u H 3/week Grab E
Conductivity Weekly Grab U D
Total Nitrogen (NO2+NO3+TKN) Semi-annually Composite E
Total Phosphorus Semi-annually Composite E
Chronic Toxicity 3 QuarterIv Com osite E
Cadmium 6.0 u /1 Weekly Com osite E
Copper Quarter) Com osite E
Zinc Quarter) Com osite E
Mercury 0.18 u /I Weekly Com osite E
Notes:
Sample locations: E - Effluent, I - Influent, U - Upstream 150 yards upstream of discharge, D - Downstream 250 yards downstream of
discharge. Instream monitoring shall be grab samples taken 3/wk (Jun-Sep) and 1/wk (Oct-May).
2 The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal).
3 Chronic Toxicity (Ceriodaphnia), P/F, 6.6%; February, May, August, and November; See Supplement to Effluent Limitations and Monitoring
Requirements Page - Special Conditions for flow of 2.0 MGD.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 3/week at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit No. NC0021423
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND !MONITORING REQUIREMENTS
SPECIAL CONDITIONS for Flow of 0.6 MGD
A(3). CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent
versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 2.1 % (defined as treatment two in the procedure document). The permit holder shall perform
quarterly monitoring using this procedure to establish compliance with the permit condition. The tests will be
performed during the months of February, May, August, and November. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
` toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above. —
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to
include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day
of the month following the month of the initial monitoring.
QCL PIF Version 9196

Permit No. NC0021423
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS for Flow of 2.0 MGD
A(4). CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent
versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 6.6 % (defined as treatment two in the procedure document). The permit holder shall perform
quarterly monitoring using this procedure to establish compliance with the permit condition. The tests will be
performed during the months of February, May, August, and November. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity.(AT) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to
include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day
of the month following the month of the initial monitoring.
QCL P/F Version 9196

. t
DEHNR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPNIENT
NPDES No. NCO021024
A licant/Facilit Name: Town of Spruce Pine/Spruce Pine W WTP
Applicant Address: P.O. Box 189, Spruce Pine, NC 28777
Facility Address: Pittman Road, Northwest of Spruce Pine
Permitted Flow 0.6/2.0 MGD
Type of Waste: Domestic - 3011o, Industrial - 70%
Facility/Permit Status: Existing/Renewal
County: Mitchell
. �eflg 2 . ., a 'Stream;Charactenstres: „ ' i
Receiving Stream North Toe River
Stream Classification C-Trout
Subbasin 04- 33-06
Drainage Area(mi2): 133
Summer 7Q 10 (efs) 43.5
Winter 7Q 10 (cfs): 56
Average Flow (cfs): 81 .6
IWC at 0.6 IvIGD (%): 2. I
IWC at 2.0 viGD (%): 6.6
M. ' i s ce l l a'h e o as.a,_ .'_ '.C"a..A,,4 .X'
Regional Off ce: Asheville
USGS To o Quad: I D IONE
Wasteload Allocation Summary
Facility requesting permitted flow increase from 0.6 to 2.0 MGD. Asheville Regional
Office denied previous permitted flow increase from 0.6 to 0.8 MGD based on rerating.
Water quality modeling results indicate that at 2.0 MGD, BOD5 limits would be 30.0 mg/1
(summer and winter) and NH3-N limits would be 12.0 mg/1 (summer) and no limit in the
winter. The NH3-N limit is based on potential toxicity.
A reasonable potential analysis indicated that cadmium and mercury will be limited during
the forthcoming permit period. Only monitoring will be required for copper and zinc.
Chromium, lead, and nickel are monitored in the Long Term Monitoring Plan and
monitoring for these parameters will not be required in the NPDES permit.
The permitted flow increase will result in the total residual chlorine limit to decrease from
97.0 ug/1 to 28.0 ug/I and the toxicity limit to increase from 2.1 to 6.6 percent.
Monitoring for those parameters not specifically mentioned is expected to rernain the same
as in the existing permit.
Instream Monitoring
Instream monitoring is to remain unchanged from the previous permit.
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: 4/9/97
Permit Scheduled to Issue: 5/26/97
Page I of 2

}�M1
State Contact
If you have any questions on any of the above information or on the attached permit, please
contact Paul Clark at [phone] ext. 580.
Please refer to existing and draft permits for additional information.
Page 2 of 2

p •
� .s z�a ��j' z:a✓Ai�*a"r" "v i x; is
FINDING OF NO SIGNIFICANT IMPACT
Environmental Assessment for the
Spruce Pine Wastewater Treatment Plant Improvements
Town of Spruce Pine
Mitchell County
An environmental assessment (EA) has been prepared, pursuant to the requirements of the North
Carolina Environmental Policy Act, for proposed wastewater treatment plant expansion and
improvements for the Town of Spruce Pine in Mitchell County. The project is located in
northwestern Spruce Pine, in the Toe River Valley of the French Broad River Basin. The
wastewater treatment plant currently discharges to the North Toe River. The treatment plant is
currently permitted for 0.6 million gallons per day (mgd) discharge, but has been allowed to
discharge an additional 0.3 mgd of wastewater (under a Special Order of Consent) in order to meet
existing flows of 0.9 mgd. The proposed project would expand Spruce Pine plant's treatment
capacity from 0.6 mgd to 2.0 mgd. Approximately 1 acre of additional land on the site will be
disturbed for the construction of the 1.4 mgd of additional capacity, and would include:
1) new plant headworks including a mechanical bar screen, improvements to the influent
pump station such as an expanded wet well with new submersible pumps;
2) new vortex grit separator with abandonment of existing grit removal system;
3) new three channel disk aerated oxidation ditch with 24 firs. of hydraulic detention time;
4) two new 55-foot diameter center feed peripheral take off clarifiers;
5) enhanced sludge pumping and expanded disinfection processes with new
chlorination/dechlorination equipment; and
6) standby power generation equipment.
The proposed work is being done in order to treat existing flow that has exceeded permitted limits,
while also providing wastewater treatment for two new prisons in the area, handling the satellite
growth associated with the prisons, and providing a reserve capacity to insure that growth in the
area is not limited by the wastewater treatment facility.
This EA and Finding of No Significant Impact (FONSI) are prerequisites for the issuance of an
NPDES permit for the wastewater treatment plan expansion by the Division of Water Quality.
The subject EA addresses a wide array of potential impacts associated with plant construction and
operation. Based on the findings of the EA and on the impact avoidance measures contained
therein, including strict effluent discharge limitations, it is concluded that the proposed project will
not result in significant impacts to the environment Pending approval by the State Clearinghouse,
the environmental review for this project will be concluded. An environmental impact statement
will not be prepared for this project.
North Carolina Division of Water Quality
March 7, 1997

DIVISION OF WATER QUALITY
November 6, 1996
MEMORANDUM
To: File
From: Greg Nizich
Subject: Permit Summary
NPDES Permit#NCO021423
Spruce Pine WWTP
Mitchell County
The facility is currently permitted to discharge up to 0.8 MGD, although they are
operating at the 0.6 MGD limit. They have requested-an_expansion to 2.0 MGD.
Although the WLA is complete, the-EA figs not been finalized:-It was determined by
Dave and myself that we would ndt renew-the-permit for the-0.6 MGD only since we
would have to renotice the permit for 2.0 MGD when the EA was FONSIed. In addition,
the facility is under an SOC to discharge 0.9.MGD_to_accomodate.flow from two_prisons--- w� .
and other miscellaneous flow.CAn ATC has been,approved for expansion 6f the existing
plant. The design capacity of the plant is 2.0 MGD, brit the ATC7eftei stated that
discharge was limited to 0.6 MGD until the permit modification is complete. Of course,
the SOC overrides that limitation.
* From Table 10-12, Metcalf& Eddy

` DIVISION OF ENVIRONMENTAL MANAGEMENT ail
May 14, 1996
�Ca0S ZZ
MEMORANDUit'I —
n r ii q,
To: Steve Tedder
From: Dennis RamseyW �� MAY
.I� 16 1996
Subject: EMC SOC67b Request I �(� l r WATEP 0UALITY
Town oPSp race Pine 1v y SECTION
EMC SOC WQ 9
NPDES Permit NCO021423 Al
Mitchell County
Asheville Regional Office 5)IiM RECEIVED
Recommendation : Proceed to Perrnittee for Sibnature/Ftibl:< 1J o};cc WATER QUALITY SECTIPN
N ' b Igo
Background:
OPF�nnnn,c L3
J-Compliance Status: aaah,n
The Town of Spruce Pine is planning to upgrade and expand their facility. A major reason for the expansion is
two new prisons are being constructed which will discharge to the Spruce Pine WWTP. During this construction,
the facility will be, unable to comply with NPDES permit limits. To fund this expansion, the Town has received
funding from the Farmers Home Adm nistration, Appalachian Rural Commission and the Rural Development
Association. Past NPDES permit violations were due to hydrologic overloading caused by severe
Inflow/Infiltration problems. The Town currently estimates 851/0 of the UI has been repaired. Past limit
exceedances were due to the I/I problems and not due to operation of the WWTP. The order allows for an
additional 300.000 -pd. The existing facility is a 600,000 gpd facility with a proposed expansion to 1.8 mad. The
new facility will consist of new screening and grit removal, increase pump capacity of existing influent pump
station, construct a new oxidation ditch, convert existing trickling filter to flow equalization, construct a new
secondary clarifier, expand the existing chlorine contact chamber, convert existing aeration basins to aerobic
digester, construct a new sludge dewatering unit and install a stand-by generator.
The proposed Order has modified limits for Flow, BOD, TSS, and Fecal Coliform. The limits are tiered so
that initially the limits are not as relaxed as they are when the facility is in the end of the construction phase.
NPDES Limit Limits thru 9/30/97 Limits 10/1/97 - 11/30/98
Parameter Unit Mo. Avg. Weekly Avg. Mo- Avg. Weekly Avg Mo. Avg, Weekly Avg
FLOW N,IGD 0.6 0.9 0.9
BOD mg/L 30 45 50 75 82 123
TSS mg/L 30 45 60 90 86 129
Fecal Coliform/I00ml 200 400 400 600 400 600
The Order contains the proposed schedule:
-Submit plans and specifications July 31, 1996
-Award contracts for construction February 15, 1997
•Begin construction March 30, 1997
,Submit progress report on construction October 1, 1997
➢�L c�„��� 10-51
r-
='6

!i
-Submit progress report on construction Ytay 1, 199S
-Complete construction September M 1998
-Comply with final permit hunits November 30, 1995.
2-Funding Commitment:
Farmers Home Administration, Appalachian Rural Commission and the Rural Development Association
3-Stream Impact:
Instream Assessment indicates modified limits will not
4-SOC Documentation:
Asheville Regional Office report thoroughly explains the need for this Order.
S-Consistent with Regional Recommendation:
Yes
6-Modifications to Draft SOC:
This order has been reviewed by Operations Branch with corrections made by ARO.
7-Facilities Assessment Log-In Date:
May 9., 1996

State of North Carolina
Department of Environment,
Health and Natural Resources •
Division of Water Quality r
f f
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary p E H N F1
A. Preston Howard, Jr., P.E., Director
February 27, 1997
Mr. John T. Coxey, P.E.
McGill Associates
P.O. Box 2259
Asheville, NC 28802
Subject: Revised EA-Town of Spruce Pine WWTP Improvements
Spruce Pine, Mitchell County
Dear Mr. Coxey: ,
The Department of Environmental Health and Natural Resources and the Division
of Water Quality have reviewed the third draft of the Environmental Assessment your firm
prepared for the project identified above. There were no objections to the proposal. Please
include the attached comments in an appendix of the document and send me 11 additional
copies of this amended document. Once this is completed, the document can be sent to the
State Clearinghouse.
The following are DWQ's deadlines for receiving final documents for submittal to
the Clearinghouse:
End of Business Day - March 4, 1997
March 18, 1997
April 1, 1997
April 15, 1997
Please contact me at [phone], ext. 567 if you should have any questions.
Sincer ,
Michelle L. Suverkrubbe
Environmental Specialist
misAspruce pine\dehnr ltr 2/27/97
enclosures
cc: Melba McGee
Forrest Westall
uelyn Nowell-
7 D�Q
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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DIVISION OF WATER QUALITY
February 24, 1997
MEMORANDUM
TO: Michelle Suverkrubbe
THRU: Don
Ruth Swan tZ
Carla Sanderso \
FROM: Jacquelyn M. Nowell \
SUBJECT: Draft Environmental Assessment for the Town of Spruce Pine WWTP
Expansion
NPDES Permit No. NCO021423
Mitchell County
The Instream Assessment Unit (IAU) has completed its review of the third draft of
the subject document and finds that the concerns in the July 19, 1996 memo have been
addressed. Since that memo, the Town of Spruce Pine has submitted a request for permit
modification to the Division for the expansion to 2 MGD. A wasteload allocation for that
expansion flow has been completed by this Unit and effluent limitations have been
recommended. The assessment contains a copy of this finalized wasteload allocation as
well as the previously issued NPDES that indicates the existing limits. This assessment
also indicates that the Town is currently under a Special Order by Consent (SOC) and
addresses the problems that caused the necessity of the SOC. These were IAU's main
concerns during the review of the previous assessment, since these items have been
addressed, we have no further comments.
Please contact me if there are any questions.
cc: Forrest Westall
WLA File

State of North Carolina
Department of Environment,
Health and Natural Resources 1 •
Legislative & Intergovernmental Affairs _
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
Richard E. Rogers, Jr., Acting Director
MEMORANDUM
TO: Michelle suverkrubbe
Division of Water Quality
FROM: Melba McGee
Environmental Review Coordinator
RE: #832 EA for Town of spruce Pine Wastewater Treatment Plant
Improvements, Mitchell County
DATE: February 24, 1997
The referenced project has been circulated among our divisions for review.
There are no objections to the proposal. Project can be forwarded to the State
Clearinghouse for additional state review.
Thank you for the opportunity to respond.
attachments
P.O. Box 27687, � ® FAX [phone]
Raleigh, North Carolina 27611-7687 IN �Qf An Equal Opportunity/Affirmative Action Employer
919-715-4148 9
- 50%recycled/10%post-consumer paper

' r
A Aft
1101
�Y pig
® North Carolina Wildlife Resources Commission
512 N. Salisbury Street, Raleigh,North Carolina 27604-1188, 919-733-3391
Charles R. Fullwood, Executive Director
MEMORANDUM
TO: Melba McGee, Legislative and Intergovernmental Affairs
Dept. of Environment, Health, and Natural Resources
FROM: Stephanie E. Goudreau, Eastern Mt. Region Coordinator
Habitat Conservation Program ;
DATE: February 21, 1997
SUBJECT: DEHNR Project No. 832, Environmental Assessment for Town of Spruce Pine
Wastewater Treatment Plant Improvements, Mitchell County.
This correspondence responds to a request by you for our review and comments regarding
the Environmental Assessment (EA) for improvements to the Town of Spruce Pine wastewater
treatment plant. These comments are provided in accordance with the provisions of the Fish and
Wildlife Coordination Act (48 Stat. 401, as amended: 16 U.S.C. 661-667d.) and the North
Carolina Environmental Policy Act (G.S. I13A-1 through 1 13)A-10; 1 NCAC 25).
The Town's existing wastewater treatment plant is unable to consistently comply with
several final effluent limitations. As a result, the Town proposes to increase the treatment
capacity of their existing facility from 0.6 million gallons per day (MGD) to 2.0_MGD. The
plant discharges to the North Toe River. Proposed improvements will include construction of a
new plant headworks, new vortex grit separator, three-channel disk aerated oxidation ditch. and
two new 55-foot diameter clarifiers. Improvements would also include enhanced sludge
pumping and new chlorination/dechlorination equipment. Less than one-half acre of forested
land would be cleared for this project.
This project should have minimal impacts on fisheries and wildlife resources; therefore,
we concur with the findings of the EA and would concur with a Finding of No Significant
Impact.
Thank you for the opportunity to review and comment on this project. If you have any
questions regarding these comments, please contact me at 704/652-4257.

State of North Carolina
Department of Environment,
Health and Natural Resources /
Division of Parks & Recreation
James B. Hunt, Jr., Governor r�u�
Jonathan B. Howes, Secretary [D FE F1
Dr. Philip K. McKnelly, Director
February 24, 1997
MEMORANDUM
TO: Melba McGee
FROM: Stephen Hall S (�
SUBJECT: EA -- Wastewater Plant Improvements, Spruce-Pine
REFERENCE: 832
The Division strongly supports the proposed improvements to the Spruce-Pine wastewater
treatment facility. According to the Natural Heritage Program database, several rare aquatic
species have been recorded in the North Toe River in the vicinity of Spruce-Pine. These
include
Sharphead darter (Etheostoma acuticeps), state listed as Threatened
Olive darter (Percina squamata), state listed as Special Concern and a federal Species of
Concern
Hellbender (Cryptobranchus alleganiensis), state listed as Special Concern and a federal
Species of Concern
All three of these species are highly vulnerable to water quality degradation. Addition of an
oxidation ditch and dechlorination facilities should therefore greatly help improve the habitat
quality for these and other aquatic species in the North Toe River.
P.O. Box 27687.Raleigh, North Carolina 27611-7687 Telephone [phone] FAX [phone]
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State of North Carolina n
Reviewing Office;Department of Environment, Health, and Natural Resources
INTERGOVERNMENTAL REVIEW — PROJECT COMMENTS Project Nu tier: Due Date:
�l3 ' V ri
After review of this project it has been determined that the EHNR permit(s) and/or approvals indicated may need to be Obtained in
order for this project to comply with North Carolina Law.
Questions regarding these permits should be addressed to the Regional Office indicated on the reverse of the form.
All applications, information and guidelines relative to these plans and permits are available from the same Normal Process
Regional Office. Time
PERMITS SPECIAL APPLICl.1 ON PROCEDURES or REQUIREMENTS 4 A utcry time
limit,
Permit to construct A operate wastewater treatment Application 90 days'adom Begin construction or award of 30 days
❑ facilities,sewer system extensions, s sewer construction contra•at Ot:Kite inspection. Post-application
systems not discharging into slate surface waters technical conference vsua (90 days)
NPOES-permit to discharge into surface water ancoor Application 180 days before begin actively.on-site inspection. 90-120 days
❑ Permit to operate and construct wastewater facilities Pre application conference usual.Adortionally.obtain permit to
discharging into state surface waters construct wastewater treatment facility-granted after NPOES Reoly INIA)
time.30 days alter receipt of pans or issue of NPOES
permit-wnichever is later.
30 days
❑ Water Use Permit Pre application technical conference usually necessary
(N/A(
7 days
❑ Well Construction Permit Comolete application must be received and permit issued
prior to the installation of a well. (15 days,
Application copy must be served on each adjacent riparian property 55 days
Dredge and Fill Permit owner. On site inspection. Pre-application conference usual. Filling
may require Easement to Fill from N.C. Department Of 490 days)
AommisiraLon and Federal Dredge and Fill Permit.
Permit IO construct a operate Art Pollution Abatement 60 days
L' facilities andlor Emission Sources a5 per ISA NCAC 21H.06 It
NIA (90 days)
Any open burning associated with suolec: pr VC5a'
❑ must pe in compliance with 15A NCAC 20.0520
Demolmcri or rencvabons OI Structures containing
asbestos material must be in comptlance wor 15A 60 days
❑ NCAC 20.0525 wn¢n requires notification and removal NIA
prior to demolition Contact ASbe SiCS Control Group
9t9 733 0823 (90 days)
❑ Co7ple. Source Permit required under 15A NCAC 20.06C.
he Sedimentation Pollution Control Act of 1973 must be property addressed for any land disturbing activity. An erosions sedlmentalio
control plan will be required it one or more acres to be Cislur0ed. Plan filed with proper Regional Office(Land Quality Sec:.l at least 30 20 days
days befote becTrining actvely A tee of $30 for the first acre and 320 00 10,each additional acre or pan must accomoanv the clan (30 dav51
❑ The Sedimentation Pollution Control Act of 1973 must be addressed with respect to the referrenced Local Ordinance: (30 days)
On-site inspection usual.Surety bond filed with EHNR. Bond amount
Mining Permit varies with type mine and number of acres of affected land Any area 30 days
mined greater than one acre must be Perini The appropriate bond (60 days)
must be received before the permit can be issued.
❑ North Carolina Burning Permit On-site inspection by N.C.Division Forest Resources if permit 1 day
exceeds a days (H/A)
Special Ground Clearance Burning Permit 22 '" On site inspection by N.D.Division Forest Resources required"if more 1 day
❑ Counties in coastal N.C. with organic soils than five acres of ground clearing activities are Involved.Inspections (NIA)
should be requested at bast ten days before actual bum is Planned:'
90-120 days
❑ Oil Refining Facilities NIA (NIA)
If permit required,application 60 days before begin Construction.
Applicant must hire N.C.qualified engineer to:prepare plans. 30 days
❑ Dam Safely Permit inspect construction.Certify Construction is according to EHNR aoprov-
ed plans. May also require permit under mosquito control program.And (60 OAys1
a 40A permit from Carps of Engineers.An inspection of site is neces
sary to verify Hazard Classification.A minimum lee of t=.00 must ac
Company the application.An additional processing fee based On ■
percentage or the total prbiect cost will be required upon completion
- Ccntinuec on reverse

Normal Process
Time
Islalulory time
PERMITS SPECIAL APPLICATION PROCEDURES or REQUIREMENTS limn)
File surety bond of S5.000 with ENNR running to State of N.C. 10 days r
Permit to drill exploratory oil or gas well conCilional trial any well opened by drill Operator snail,upon IN/AI
abandonment,be plugged according to ENNR rules and regulations.
Geophysical Exploration Permit Application filed with ENNR at least 10 days prior to issue of permit 10 days
L Application by letter.No standard application form. IN/Al
❑ Stale Lokes Construction Permll Application fee based On structure size is Charged. Must include 15-20 days
descriptions d drawings of structured proof of ownership (NIA)
of riparian property,
❑ 60 days
401 Water Ouality Certification NIA (130 days$
❑ _ 55 days
CAMA Permit for MAJOR development $250.00 fee must accompany application 1150 days)
22 days
❑ CAMA Permit for MINOR development $5000 fee must accompany application (25 days)
❑ Several geodetic monuments are located in or near the project area. If any monuments need IO be Moved or destroyed. please nolily: _
N C Geodetic Suney. Box 27687. Raleigh.N.0 27611
Abandonment Of any wells. ,f reiluirec. must be in accordance with Title 15A. Suo0haliter 2C.0100.
❑ Notification of the proper regional office is reeuesled if "orpnan" underground storage tanks(USTSI are discovered Curing any excavation operation.
CCompliance with 15A NCAC 21i 1000 1Coasial Slormwale• Rules, is reculrec. 45 days
I (N!A)
Other comments 1011acn aeoilional pages as necessary, being certain t0 cite comment aumonl Y)
REGIONAL OFFICES
Questions regar g these permits should be addressed to the Regional Office marked below.
Asheville Regional Office ❑Fayetteville Regional Office
59 W000fin Place Suite 714 WaChovia Building
Asheville, NC 28801 Fayetteville, INC 28301 .
(704) 2516208 - [phone] -
❑Mooresville Regional Office ❑Raleigh Regional Office
919 North Main Street. P.O. Box 950 3800 Barrett Drive. Suite 101
Mooresville. NC 25115 Raleigh, INC 27609
[phone] [phone]
❑Washington Regional Office ❑Wilmington Regional Office
1424 Carolina Avenue 127 Cardinal Drive Extension
Washington. NC 27889 Wilmington. NC 28405
(919) 9466481 (919) 395.39DO
❑Winston-Salem Regional Office
8025 North Point Blvd.
Suite 100
Winston-Salem, NC 27105
(919) 8%7007

State of North Carolina
Department of Environment,
Health and Natural Resources • 0
Division of Water Quality A&
James B. Hunt, Jr., Governor A;
Jonathan B. Howes, Secretary D E H N R
A. Preston Howard, Jr., P.E., Director
November 26, 1996
Mr. John T. Coxey, P.E.
McGill Associates
P.O. Box 2259
Asheville, NC 28802
Subject: DWQ Comments on Revised EA
Town of Spruce Pine, Mitchell County
WWTP Improvements
Dear Mr. Coxey:
The Division of Water Quality has reviewed the second draft of the Environmental
Assessment your firm prepared for the project identified above. Attached is one set of comments
from the Technical Support Branch on the revised document. The Planning Branch has no further
comments on the EA.
Please address these comments (in the EA) and resubmit nine copies of the amended EA
for a four week circulation through the Department. Once DEHNR signs off on the document it
will be sent to the State Clearinghouse for final public review.
Please give me a call at [phone], ext. 567 if you have any questions.
Sincerely,
-Z Y
Michelle L. uverkrubbe, AICP
Environmental Specialist
mis:\spruce.doc
enclosure
cc: Forrest Westall
Jacquelyn Nowell
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

DIVISION OF WATER QUALITY
November 12, 1996
MEMORANDUM
TO: Michelle Suverktubbe
THRU: Don S t
Ruth Sw ek (5
Carla Sanderson
FROM: Jacquelyn M. Nowell ww,
SUBJECT: Revised Town of Spruce Pine Environmental Assessment
NPDES Permit No. NCO021423
Mitchell County
The Instream Assessment Unit has reviewed the revised EA and finds this effort
provides considerably more information and analyses than the previous document. Most
of the concerns noted in our July 19th memo have been addressed. However, the revised
EA still does not state the level of treatment(ie tertiary or advanced secondary) that the
improvements to the WWTP will achieve. There is no mention of the tentative limits given
in the previous memo and whether they can be met. It should be noted that the Division
recently completed a wasteload allocation for Spruce Pine and it was finalized on October
3, 1996 at design flows of 0.6 MGD and 2.0 MGD with corresponding effluent limits.
The Town may be awaiting these results before addressing them in their assessment.
cc: Forrest Westall
WLA File

Page 1
Note for Jackie Nowell
From: Greg Nizich
Date: Wed, Oct 9, 1996 2:47 PM
Subject: Town of Spruce Pine
To: Jackie Nowell
Cc: Dave Goodrich
Your WLA fact sheet says the 0.8 MGD flow request was denied in 1994 by the ARO.
While that may be correct, the NPDES group (Dana Bolden) issued a permit in 8/94 with
limits for both 0.6 and 0.8 MGD. I plan to notice the permit (if the EA ever gets done) with
limits at both 0.6 and 2.0 MGD, so this discrepancy shouldn't be a problem.

Page 1
Note for Jackie Nowell
From: Dave Goodrich
Date: Thu, Oct 3, 1996 5:42 PM
Subject: RE: Town of Spruce Pine
To: Carla Sanderson
Cc: Greg Nizich; Jackie Nowell; Ruth Swanek
No problem. We'll issue the permit with a two-year compliance schedule.
From: Carla Sanderson on Thu, Oct 3, 1996 3:18 PM
Subject: RE: Town of Spruce Pine
To: Dave Goodrich; Greg Nizich; Jackie Nowell; Ruth Swanek
We have discussed this situation down here and have come up with (hopefully) a solution.
Require the limits but with monthly monitoring only for two years after permit issuance.
After two years the limits will kick in or the facility can request(by letter) another evalutaion
of the data,to determine if limits are still needed. Mike Parker has no problem with doing it
this way. Greg and Dave, any problem with this?
From: Jackie Nowell on Thu, Oct 3, 1996 1:59 PM
Subject: RE: Town of Spruce Pine
To: Dave Goodrich
Cc: Carla Sanderson
Spruce Pine has been sampling for metals quarterly only since mid 1994. There were 9
values for Cd, 8 BDLs @ <10) and a 17 ug/l ( the limit @ 0.6 MGD is 19, @ 2.0 MGD
would be 6). The max pred. value was greater than the allowable. There were 9 values for
mercury, 5 were BDLs, 4 hits at 1.1, 1, 2.6 and 0.3 ug/I. ( limit of 0.6 ug/I and 0.18 ug/1).
I told Mike that they could sample for 12 months with the limit and then request a
modification if data shows no problems. He said that there were no industries in the Town
that are discharging Cd and Hg, that it more than likely the lab procedures, and he thinks
we're being unfair to limit the facility. I told him that the Town should get with their lab and
have them correct whatever is that's having Cd and Hg, show up and that with quarterly
monitoring there were probably hits during the non-reporting months. He and Forrest had
discussed it and they want quarterly monitoring only.
I said that he could call and talk to you and Carla about it and he said and I quote .."I'm
going to just tell the Town to adjudicate the permit". He said it at least twice before our
conversation ended.
Ruth,Carla and I have talked about the fact that Spruce Pine could be given a compliance
schedule in their permit and after 12 months if there are all BDLs for CD and Hg, then the
limit could be dropped. But with the high Cd value and nearly 50% of the Hg values being
above detection, it's not wrong to recommend a limit or at least increased monitoring.
Spruce Pine will be getting a LTMP w/the expansion to 2 MGD so most of the monitoring
will be w/the pretreatment program.
Carla also said that she would call him and discuss this with him.
From: Dave Goodrich on Thu, Oct 3, 1996 1:29 PM

Page 2
Subject: FW: Town of Spruce Pine
To: Jackie Nowell
Jackie -
What are the data (specifically) and when were they collected? Did Mike actually say he was
going to advise the permit holder to adjudicate the permit?
-Dave
From: Greg Nizich on Thu, Oct 3, 1996 10:46 AM
Subject: Town of Spruce Pine
To: Coleen Sullins; Dave Goodrich
1 reed the WLA today for the exp. to 2 MGD. Jackie recommended limits for Cadmium and
Mercury due to previous detection. She said Mike Parker in Asheville is not happy with that.
She also said MP was going to suggest they adjudicate their permit if it goes that far. If they
did contest the permit, would their ATC for plant expansion still be valid? Since they have an
SOC to go to 0.9 MGD they wouldn't be held to the previously pemvtted max. of 0.6 MGD.

NPDES WASTE LOAD ALLOCATION
Modeler Dale] Rcc. #
PERMIT NO.: NC0021423 --PA Al I- 17`IV t
PERMITTEE NAME: Town of Spruce Pine Z ,,�
FACILITY NAME: Spruce Pine WastewalerTrcatment Facility Drainage Area(mi ) 3,� Avg. Stream0ow (cfs): . -
Facility Status: Existing _ 7Q10 (cfs) 93,,r Wimcr 7Q10 (cfs) 3-6 30Q2 (cfe) 8/./v
Permit Status: Renewal with Modification Toxicity Limits: IWC % Acut Chi ron c.'
Major Minor Insircam Monitoring:
Pipe No.: 001 Parameters
Design Capacity: 0.00MGD Upstream Location
i
Domestic (% of Flow): 70 % Downstream_ Location y ' LI wu z1
Industrial (% of Flow): 30 %
Effluent Summer Winter
Comments: Characteristics
ReQuest is for renewal and flow increase from O 8 MOD to 2.O MGDis for renewal and flow increase from 0 8 MOD to 2.0 MG . BOD5 (mg/1) ;3o
NI-1�-N (mg/1) t
D.O. (mg/1) �vn, �✓
RECEIVING STREAM:North Toe River
Class: C-Trout TSS (mg/1) 3a
Sub-Basin: 04-03-06 F. Col. (/100 ml) v0J
Reference USGS Quad: DIONE (please attach) pH (SU)
County: Mitchell
Regional Office: Asheville Regional Office
Previous Exp. Date: 12/31/96 Treatment Plant Class: Class IV
Classification changes within three miles:
0'1P
dti
Requested by: Greg NizichC-'5A� Date: 7/15/96 a d /J,
Prepared by: Tac 'C-4— Date: /0 Z 96 Comments:
Reviewed Date: a �D

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO021423 Modeler Date Rec. #
PERMITTEENAME: P
Town of Spruce Pine J-r1AI irl-lb I
t q 849/06
FACILITY NAME: Spruce Pine Wastewater Treatment Facility Drainage Area(miz ) r 33 Avg. StreamFlow (cfs): 2-6 6
Facility Status: Existing 7Q10 (cfs) 13,5 Winter 7Q10 (cfs) Jr6 30Q2 (cfs) $11,
Permit Status: Renewal with Modification Toxicity Limits: IWC 6 6 % Acut Chronic
Major Minor Instream Monitoring: /
Pipe No.: 001 Parameters-r6
Design Capacity: a.000 MGD l g P Y� Upstream y Location /�?• r ac..t
Domestic (% of Flow): 70 % Downstream Location 2SI
r �
Industrial (% of Flow): 30 %
Effluent Summer Winter
Comments: Characteristics
Request is for renewal and Flow increase from 0.8 MGD to 2.0 MGD. BODS (mg/1) 30
NH3-N (mg/1) /Z
RECEIVING STREAM: D.O. (mg/1) �n� -f tN/
North Toe River
Class: C-Trout TSS (mg/1) 3� o
Sub-Basin: 04-03-06 F. Col. (/100 oil)
`LJJ ZOO
Reference USGS Quad: D I ONE (please attach)
County: Mitchell pH (SU) �_q 6_9
Regional Office: Asheville Regional Office /g ZS 23
Previous Exp. Date: 12/31/96 Treatment Plant Class: Class IV
Classification changes within three miles:
0,
Requested by: Greg NizichC�'5A� Date: 7/15/96
Prepared by: Rt Date: Coe f 6 Co ments:
Reviewed D te: I a

o/-
00
smn . nd f SI io mine / / >>\�� \\\IL\ 1,. aoa
L'',
. Scn1�\ `t+b.Xl�
ern
C 1 \
I � •r Gudcerm
}Y
:Penl'a d _ oK �cti F ,•; R IIi irx / e , \(� \ ' Teal Vic❑
:ry r e
`�- _� �\ <� .^.£ 9' a •I Xp11�i. � _'��/ � •y��p``_ •^ /�' ��r`1 ,'; 11 'i� f_ /�•l-
E XISTING DISCHARGE
^ _ POINT 001 ale, � `�'•
-tea. Cem \ 1 Sf°• �CO ;�.. _aWa\Nill
30
4' � ' ,<-- 1 , 1/ �Ly��l\ __^ � .,\• •>�� :;��;',.:1I�a I�l/5lruce one" �•' '"�' J/�
` ..,� �/ 'J. t\. •\ O.• l uro c.�, .; ••'�' (;`-� `<H°soibl I.
De.10n Senl n fl// o �d ';sv•= r.
o lope. (w10 E)� Be r CNoel
MI
°uee Pl ne . Ili_
Gaik•nn a ChalfCM ou nflln - - — —l— -
-
Location Map From USGS Map
\y Town of Spruce Pine WWTP .
SplucC Pinc, Nloith C:Irnlinn
1 ischari-,c Srrial Ni). 001
Jun: 1993 P:I,C I of I

NOit'i'l} CAROLINA DEPT. OF NATURAL'RESOURCES AAD COMMUNITY DEVELOP!4E!]T
�•n, T nnal s,17r11 n I MAal❑r CMC NT rnMMT cc Tn al ._ . .
NATIONAL POLLUI ANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER
STANDARD FORM A - MUNICIPAL
SECTION L APPLICANT AND FACILITY DESCRIPTION
Unless otherwise specified on this form all Items are to be completed. If an Item Is not applicable indicate'NA^
ADDITIONAL INSTRUCTIONS FOR SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED. REFER TO
BOOKLET BEFORE FILLING OUT THESE ITEMS.
Please Print or Type
1. Legal Name of Applicant toi - Tbwn of Spruce Pine
(see Instructions) ,`,s'
2. Mailing Address of Applicant Xi.l
(see Instructions)
Number 6 Street lda;: Post Office Box 189 Lo r i
Cityaozni Town of Spruce Pine
State
North Carolina
- -- }02a:
zlpcode sofa= 28777-0189 a
} C�
]. Applicant's Authorized Agent
(see Instructions)
Name and Title 10343 Mr. Robert Wiseman
Tbwn Manager
Number 6 Street raze: most_ Office Box 189 -
M.nti
City /03<' Tbwn of Spruce Pine
sr
State 103W Ahrth Carolina
Zip code Yoke: 28777-0189
Telephone tear: 704 765-3000
ern M, Area Number
4. Previous Application - '- Code
If a revious aper.p application for a
mlt under the National Pollutant r:%±
Discharge Elimination System has
been made,give the date of
application. ;.104^u'. YR MO DAY
I certify that I am familiar wlth the Information contained In this application and that to the best Of my knowledge and belief such Information
is true,complete,and accurate.
RnhPrt Wiseman ,' o2e' Town Manager
Printed Name of Person Signing Title
_302}i YR MO DAY
Signature of Applicant or Authorized Agent --. . . pate Application Signed
North Carolina General Statute 143-215.6(b) (2) provides that: Any person who knowingly makes
any false statement representation, or certification in any application, record, report, plan,
or other document files 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 or a .misdemeanor punishable by a fine
not to exceed $10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C.
Section 1001 provides a punishment by a fine or not more than $10,000 or imprisonment not
more than 5 years, or both, for a similar offense. )

FOR AGENCY USE
FOIR Al
S. Facility (see instructions)
Give the name, ownership, and PhYSi-
cal location of the plant or other
operating facility where discharge(S)
presentlyOccur.occur(S)or will cur.Name Town of Spruce" Pine Wastewater Treatment Plant
Name �705.>t°
Ownership(Public, Private or
Both Public and Private). „YtlSb; L' PUB ❑PRV ❑BPP
Check block if a Federal facility tASO'. ❑FED
and give GSA Inventory Control -
Number 705QEy
«aupn: -- Route 1 Pitman Road -
Number A Street 1C5la.
� mS
City tasrt,', Town of Spruce Pine
County it7A9
Mitchell
State rase?, North Carolina _-
f
6. Discharge to Another Municipal
Facility(see Instructions) .
a Indicate If part of your discharge 366a` ❑Yes cif No
Is Into a municipal waste trans.
port system under another re-
sponsibie organization. If yes, 'f
complete the rest of this Item °•>ti
and continue with Item 7. If no, s
go directly t0 Item 7.
b. Responsible Organization
Receiving Discharge '
Name
ems•.
Number a, Street tp6b
City 108Q_�
State ti706s',
Zip Code
c. Facility Which Receives Discharge 7064'L
Give the name of the facility
(waste treatment plant)which re-
ceives and Is ultimately respon-
Slble for treatment of the discharge
from your facility.
d. Average Daily Flow to Facility _�U6t{; mgd
(m9d) Give your average dally z.,.._
flow Into the receiving facility. -
7. Facility Discharges, Number and
Discharge Volume (see Instructions)
Specify the number of discharges
described In this application and the
volume of water discharged or lost
t0 each of the categories below.
Estimate average volume per day In
million gallons per day. Do not In.
clude intermittent or noncontinuous
overflows, bypasses or seasonal dis-
charges from lagoons, holding
ponds. etc.

FOR GGI ENfy ,rCv
STANDARD FORM A—MUNICIPAL
SECTION I.Y. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a description of each major Industrial facility discharging to the municipal system, using a separate Section IV for each facility descrip.
lion. Indicate the 4 digit Standard Industrial Classification(SIC)Code for the Industry,the major product or raw material,the flow(In thou-
sand gallons per day),and the characteristics Of the wastewater discharged from the industrial facility Into the municipal system. Consult Table
I It for standard measures of products or raw materials. (see Instructions)
I. Major Contributing Facility
(see Instructions) -
Name 401i H^ppshire Hosiery
Number& Street 401b 103 Cross Street __—
City 401c Spruce Pine
County 401d Mitchell
State 401e North Carolina _—
ZIP Code - 401f 28777
2. Primary Standard Industrial 402 _2251_
Classification Code (see
Instructions)
Units(See
Quantity - Table 111)
7. Principal Product or Raw
Material (see Instructions) 40,000
Product 407a Stockings 40g^ dozen/wk k; Pair
rw3a
Raw Material 407E '4pyd.. :40sf"
4. Flow Indicate the volume of water 47.30
discharged Into the municipal sys- 404a thousand gallons per day
tem In thousand gallons per day
and whether this discharge Is Inter. 404E ❑Intermittent(Inl)6Continuous(con)
mittent or continuous. ,,yy,,
5. Pretreatment Provided Indicate if 405 ty Yes .(]No
pretreatment Is provided prior t0
entering the municipal system
6. Characteristics of Wastewater
.(see Instructions) -
?'- Parameter
Name T H TSS BOD NHq ZN
At)6 Parameter
Number 00530 00310 01092
4dsb Value 270C 7.3 101.8 315.6 1.16 0.178
IV-1 This section conlains 1 page.
Gv0 865.706

FOR AGI gNGY ,I[c
STANDARD FORM A—MUNICIPAL x-
9 R°
SECTION IV. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a description of each major Industrial facility discharging to the municipal system, using a separate Section iv for each facility descrip.
tlon. Indicate the 4 digit Standard Industrial Classification(SIC)Code for the Industry,the major product or raw material, the flow(In thou.
sand gallons per day), and the characteristics of the wastewater discharged from the Industrial facility Into the municipal system. Conwlt Table
III for standard measures of products or raw materials. (sea Instructions)
I. Major Contributing Facility
(see Instructions)
Name 401i OMC Spruce Pine
Number& Street 401b 1025 Greenwood Road __—
City 401e Spruce Pine
county sold Mitchell _.
State 401e North Carolina - —
Zip Coda -- 401f 28777
2. Primary Standard Industrial 402 3365
Classification Code (see -
instructions)
Units'(See
]. Principal Product or Raw Quantity Table 111)
Material (See instructions)
Product 403a 403e�' fwD24'.
a °^
Aluminum 49.000 lbs day
Raw Material 403b 401d> �OR;:
4. Flow Indicate the volume of water 24.2
discharged Into the municipal sys, 404a thousand gallons per day
tem in thousand gallons per day
and whether this discharge Is Inter. 404b ❑Intermittent(Int)MContinuous(con)
mittent or continuous. ,y,
5, Pretreatment Provided Indicate if 405 Py Yes ONO
pretreatment Is provided prior to
entering the municipal system
G. Characteristics of Wastewater
.(see instructions)
Parameter
Name TEMP H Zn
4Q8 Parameter
Number 01092
408t1 value
31-C 7.4 0.10
IV-1 This section contains 1 page.
G P 0 5e 5.70e

FACT SHEET FOR WASTELOAD ALLOCATION
Request# !�D
Facility Name: Spruce Pine WWTP D
NPDES No.: NC0021423
Type of Waste: 70% Domestic/30% Industrial P tr
Facility Status: Existing i
Permit Status: Renewal WATER.Q�Au�SECTION
Receiving Stream: North Toe River pSHEVII MONAL
Stream Classification: C Tr
Subbasin: 040306
County: Mitchell Stream Characteristic:
Regional Office: Asheville USGS #
Requestor: Nirich Date:
Date of Request: 7/17/96 Drainage Area(mi2): 133
Topo Quad: D10NE Summer 7Q10 (cfs): 43.5
Winter 7Q10 (cfs): 56
Average Flow (cfs): 266
30Q2 (cfs): 81.6
IWC (%): 6.6
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility requesting expansion to 2 MGD. Current capacity of plant is 0.6 MGD Previous request
for expansion to 0.8 MGD based on rerating of the plant was denied per ARO. Level B model
results indicate that at 2 MGD, BOD5=30, summer NH3=12 (tox), winter NH3 = monitoring.
Recommend effluent limits for Cd and Hg. Continued quarterly monitoring for Cu, and Zn.
Monitoring for Cr, Pb, and Ni will be continued in the facility's pretreatment LTMP. Chronic
toxicity test at 6% at 2 MGD.
Skal Schedule Requirements and additional comments rom Reviewers:
JRecommended by: Date:
Reviewed by U
Instream Assessment: Date: �g (B
Regiona . isor: Date: 1 �O
Permits gmeering: Date: /3017G
SEP 2 7 19%
RETURN TO TECHNICAL SERVICES BY:

2
CONVENTIONAL PARAMETERS
Existing Limits:
Monthly Average
Summer Winter
Wasteflow (MGD): 0.6 .
BODS (mg/1): 30
NH3N (mg/1): monitor
DO(mg/1): monitor
TSS (mg/1): 30
Fecal Col. (/100 ml): 200
pH (SU): 6-9
Residual Chlorine (µg/l): 97
Temperature(C): monitor
TP (mg/1): 2/yr
TN (mg/1): 2/yr
Recommended Limits for WLA # 8496(a) @ 0.6 MGD_
Monthly Average
Summer Winter WQ or EL
Wasteflow (MGD): 0.6
BODS (mg/1): 30
NH3N (mg/1): monitor
DO(mg/1): monitor
TSS (mg/1): 30
Fecal Col. (/100 ml): 200
pH (SU): 6-9
Residual Chlorine (µg/1): 97
Temperature (C): monitor
TP (mg/1): 2/yr
TN(mg/1): 2/yr
Recommended Limits for WLA # 8496(b) @ 2.0 MGD_
Monthly Average
Summer Winter WQ or-EL
Wasteflow (MGD): 2.0 2.0
BODS (mgA): 30 30
NH3N (mg/1): 12 monitor
DO(mg/1): monitor monitor
TSS (mg/1): 30 30
Fecal Col. (/100 ml): 200 200
pH (SU): 6-9 6-9
Residual Chlorine (µg/l): 28 28
Temperature(C): monitor monitor
TP (mg/l): 2/yr 2/yr
TN (mg/1): 2/yr 2/yr
Limits Changes Due To: Parameter(s) Affected
Change in wasteflow= NH3, CI

3
TOXICS/METALS
Type of Toxicity Test: Chronic Ceriodaphnia P/F
Existing Limit: 2.1%
Recommended Limit: 2.1% Co) 0.6 MGD : 6.6% @ 2 MGD
Monitoring Schedule: FEB MAY AUG NOV
Existing Limits
Cadmium (ug/1): Qrtrly monitoring
Chromium (ug/1): Qrtrly monitoring
Copper (ug/1): Qrtrly monitoring
Nickel (ug/l): Qrtrly monitoring
Lead (ug/1): Qrtrly monitoring
Zinc (ug/1): Qrtrly monitoring
Mercury (ug/1): Qrtrly monitoring
Recommended Limits for WLA # 8496 (a) CO) 0.6 MGD
Cadmium (ugA): 19
Copper (ug/1): Qrtrly monitoring
Zinc (ug/t): Qrtrly monitoring
Mercury (ug/1): 0.6
Recommended Limits for WLA # 8496 (b) @ 2 MGD
Cadmium (ug/1): 6
Copper (ug/1): Qrtrly monitoring
Zinc (ug/1): Qrtrly monitoring
Mercury (ug/1): 0.18
Limits Changes Due To: Parameter(s) Affected
Monitoring in the LTMP Cr, Ph, Ni
Toxicity Analysis Cd, Hg
_ Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
OR
_X_ No parameters are water quality limited, but this discharge may affect future allocations.

4
INSTREAM MONITORING REQUIREMENTS
Upstream Location: 150 yds upstream of outfall
Downstream Location: 250 yds downstream of outfall
Parameters: Temperature, DO, fecal coliform, conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes— No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes,explain with attachments.

Facility Name_Spruce Pine WWTP Permit# _NC0021423 Pipe# _001_
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is 6.6_% (defined as treatment two in the North Carolina procedure document). The permit holder shall
perform quarter monitoring using this procedure to establish compliance with the permit condition. The fast
test will be performed after thirty days from the effective date of this permit during the months of
_FEB MAYAUG NOV .. Effluent sampling for this testing shall be performed at the NPDES permitted
final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally,DEM Form AT-1 (original)is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this permit may be re-opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate
retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10 43.5 cfs
Permitted Flow _2.0 MGD Recommended by:
IWC _6.6 % `
Basin & Sub-basin _FRB06 .
Receiving Stream _North Toe River—
County County _ Mitchell Date _ d'
QCL P/F Version 9191

TOXICANT ANALYSIS
Facility Name SPRUCE PINE WWTP
NPDES# NC0021423
Ow(MGD) 2
70 1Os(cis) 43.5
IWC(%) 6.65
Pec'ving Stream NORTH TOE RIVER
3 Stream Class 6-TROUT
I ohs FINAL RESULTS
CD 91LOOL
Max. Pred Cw 54.4ug/Ic�f (Liuir
Allowable Cw 6.0;ug/I _
Max. Value 4fey �96
PB '
Max. Pred Cw 50jug/I
Allowable Cw 375.8 ug/I Au, wce
Max. Value 50; 61)t
HG
Max. Pred Cw 20.54'ug/I (/,1 °.1 Z,j /)
Allowable Cw 0.2!ug/I - 5 /
Max. Value 2.6
CR
Max. Pred Cw 81 ;ug/I 14-g®r-
Allowable Cw 751.6!ug/I Exc /
Max. Value 30
CU
Max. Pred Cw 227.9 ug/I
Allowable Cw 105.2!ug/I "roe
Max. Value 53`
NI
Max. Pred Cw 25:!ug/I
Allowable Cw 1322.8ug/I
Max. Value 25
ZN
Max. Pred Cw 312.41:ug/I
Allowable Cw 751.6:!ug/I
Max. Value 142
0
10/2/96 PAGE 1

TOXICANT ANALYSIS
Facility Name SPRUCE PINE_W_WTP
NPDESN NC0021423
Ow(MGD) 0.6;
701Os(cfs) 43.5;
/WC(%) 2.09i
Rec'ving Stream NORTH TOE RIVER
Stream Class C-TROUT
FINAL RESULTS
CID
Max. Pred Cw 54.4;ug/I
Allowable Cw 19.1;ug/I
Max. Value 17'
PB
Max. Pred Cw 50:!ug/I
Allowable Cw 1194.4!ug/I
Max. Value 50;
HG
Max. Pred Cw 20.54!ug/I u� r
Allowable Cw 0.6:!ug/I
Max. Value 2.6
CR
Max. Pred Cw 81;ug/I
Allowable Cw 2388.7':ug/I
Max. Value 30;
CU j
Max. Pred Cw 227.9�ug/I
Allowable Cw 334.4;ug/I
Max. Value 53'
NI
Max. Pred Cw 25;ug/I
Allowable Cw 4204.1 ug/I n
Max. Value 25;
ZN
Max. Pred Cw 312.4':ug/I
Allowable Cw 2388.7ug/I
Max. Value 142
0
10/2/96 PAGE 1

n%,
MEMO
DATE:
TO: SUBJECT:
ou0z �j
d v,05- /v
oz
< 0 ouz. J C:� O, 05-
�0, a1 ZO,07- o, u1 ✓ < v- 1 / as— 0 , 070
< v,oz v,oi3 � Jw. � o 001 <o,
00o z'J <0,0� o. o37
0,
vZ 0 :�13 < 0, ,
5 0 , 060
o , ozz�cv. i
. o0 0 3 ''' < 0,0
G o.oi ' <
o c� . I <
Z 00Z(- < v.oS 0,01�3
D vl <' vZ 0,6Zo < . I
C� < o, 081+a5" 3�
01 <o. D� ° o6w
�7 • vgv fool
C)
II
From:
d STft o
G... ,� North Carolina Department of Environment,
Health, and Natural Resources R�„aPo,,

Spruce Pine WWTP jmn
North Toe River C Trout 8/20/96
040306
Facility requesting expansion of existing permit from 0.6 MGD to 2.0 MGD. Previously
renewed permit in 1994 had requested expansion to 0.8 MGD based on capacity of plant,
and WLA was completed. However, consultation with Mike Parker of ARO indicated that
Spruce Pine was unable to meet the capacity of 0.8 MGD without some construction to the
existing facility. Indicated that the permit for 0.8 MGD should be null. Expansion
requested because of problems meeting flow, BODS, and TSS limits, in addition to
receiving increased domestic ww from two proposed prisons, and other proposed flows.
Spruce Pine is located in a segment of the North Toe River where several quartz mining
plants are located that discharge large amounts of fluoride
Review of compliance data of past few years show that plant was having problems
handling the ww, by the number of permit violations that were occurring : BODS limits
failed in March, June- October 1994: TSS limits failed, Feb., June-July, Oct-
Dec.1994, and Jan. 1995. Flow limit failed, March '95 - Feb. '96: pH limits failed
12/95, 1-2 '96: Fecal limits failed 6/95, 9/95, 1/96, 4/96. Because of these problems,
the Town requested an SOC in April 1996 for flow, BOD,TSS, and fecal coliform.
Review of toxicity test: Existing limit of quarterly chronic ceriodaphnia test at 2.1%
has been met since 1992, with no FAILS ever reported. Expansion to 2 MGD will modify
the tox test to 6.6%.
Instream data: No DO problems reported. Fecal levels are elevated above the standard
both upstream and downstream of the plant in the summers of'94 -96. Could be caused
by runoff sources. Spruce Pine discharge does not appear to be causing any problems
Instream.
Model Results:
Level B model results indicate that secondary limits will protect @ the 2 MGD expansion.
However, NH3 toxicity limits are 12 mg/l in the summer and 30 mg/1 in the winter. Must
apply at least the summer NH3 tox limit.
Recommended limits are :
BODS = 30 mg/l
NH3 = 12 mg/l (summer): monitor in the winter
TSS = 30 mg/1
Fecal =200
Cl = 28 µg/l
pH =6-9 SU
Toxicity Analysis: In 1994 w/ the expansion request to 0.8 MGD, Spruce Pine was
given quarterly monitoring for several metals based on the type of industrial waste that the
facility had coming into the plant. Monitoring for chromium, cadmium, copper, zinc, lead,
nickel and mercury were added to the permit. When reviewing these parameters with this
WLA, there are not yet enough data values to complete the statistical portion of the
reasonable potential analysis. A minimum of eight values are heeded and since 1994, with
quarterly monitoring, only 7 values have been reported.

Spruce Pine WWTP jmn
North Toe River C Trout 8/20/96
040306 page 2 /
Preliminary analysis: Pb and Ni -reported all BDLs, may recommend being dropped
Cr,- all BDLs except 1 value that was less than its allowable, may
recommend being dropped
Cd and Hg - max. values reported above the allowable, maybe
should be limited, but will recommend
continued monitoring.
Cu, and Zn - maybe continued monitoring
Consult w/ Melanie Bryson of Pretreatment:
Spruce Pine is on a pretreatment long term monitoring plan that started in Oct. 1994,
monitors all parameters at the influent and effluent, three consecutive days and then on a
quarterly basis. Because of their expansion to 2 MGD as a major facility, will go on a full
monitoring plan. Asked about Hg data, told her they had three hits @ 0.3, 1, and 1.1 µg/l.
Said that monitoring should remain in the NPDES permit. Asked if a Hg limit would be
given. Said that a lot of plants in that part of the state had been reporting hits for mercury.
And had registered complaints about the extremely low mercury limit.
Told her that because 1) Pb and Ni had been all detects and 2) Cr all detects
except for 1 value, and these three would be monitored quarterly in the
LTMP, would probably drop the monitoring in the permit for Pb, Ni, and
Cr. Would continue to include Cd, Hg, Cu, and Zn as quarterly
monitoring in the NPDES permit.

TOXICANT ANALYSIS
Facility Name ;SPRUCE PINE VW TP
NPDES# INC0021423
Ow MGD 2i.
7010s cts 43.5;
IWC % l 6.65'
Rec'ving Stream 'NORTH TOE RIVER
Stream Class ;C-TROUT
/ ................................_.._..................................._.
l FINAL RESULTS
CD ? 1
Max. Pred Cw 59.5!u /I CL rM f/
Allowable Cw 6.0'u /I
Max. Value 17
PB
Max. Pred Cwl 50u /I frt�v
Allowable Cw 375.8''u /I ADL15
1 Max. Value 50
HG �
n I Max. Pred Cw 6.71'u /I
Allowable Cw 0.21u /I l
d'�,IIIAAA��� Max. Value 1.11
5 CR
Max. Pred Cw 105'lu /I
Allowable Cw 751.61u /I
Max. Value 30i
Cu
Max. Pred Cw 355.1':u /I
Allowable Cw 105.2iu /I
Max. Value 53i
NI aL5
Max. Pred Cw 25!u /I kl t
Allowable Cw 1322.81u /I
Max. Value 25
ZN
Max. Pred Cw 340.8 u /I
Allowable Cw 751.6iu /I
Max. Value 1421
0
8/20/96 PAGE

TOXICANT ANALYSIS
F.1f,AAV,,. SPAR P—...: CD I ixxx ..- PB "P...- NG CR
sax,ax- sw�
L........WW
a SDL-IML Xwumd Uw RESULTS II 6Dl-IQDLAda4 Data RESULTS n BDt-I=LAck.&IDabxRGSULM n BDI-IaDl.AcWWDaW
n,A;14 665 1 5 00 swD 4,535573626 1 50<100 SW D.. 0 t 0.1<0.2 SW Ur. 0 4WW 10 Q 0
R.vw,�, WATHT,DE RIVER 2 5'10 Maa, 6,714=714 2 50 000 Ma. 50 *:1 2 1.1 1.1 Man04VQ9 2 10�20
s".GA. C-TR 3 S�10 ON. 0.6)55109)3 3 50 000 C.N. 0 3 0.1<0.2 cm. tomig 01 3 10 Q0
4 10<20
4 5<10 4 50<100 1 0.3 0.3
FINAL RESULTS 5 5<10 5 50<100 5 0.1 0.2 5 10�20
CO 6 17 17 MMfF.................... 6 50<100 WhFacmar.1 6 0.25<0.5 man F.,.- 6 30 30
Max.Prw 0a 0 A 7 5<10 Max,V.1a. 1�w 7 50 000 Mae.Value --------i7O 99A 7 1 1 Max.VaWo ------ 7 10<20
AIPA,N.ca, 6 0 A a Max.PredG. 0 a Max.Pr.d Cw a Max,Nod ovv a
0 Pg,0'o Max.vala. 17 9 Aloaaki.cav 6,01 K4 9 Allovaittle C. 375.1 w 0,11 9
9 momptU.C.
!P8 10 10 10 10
Mn.Rao ca 0 UgA I I I I I t 11
I movala.Cw 3m8 U'A 12 12 12 12
Max,VW. w 13 13 13 13
iHG 14 14 14 14
Max.Pad Car 0 ugA 15 15 is 15
AllaaaM.Gm 0.2 upA 16 16 is 16
Mia.valu. 1.1 17 17 17 17
:CR 18 is Is is
Max.No Cx, 0 ugh 19 is 19 19
maaaaa.ca 7511 ugA n n p,.. 20 ZD
Mn.vaki. w 21 21 R21 21
!cu 22 22 22
Max.Nad ca a ugA 23 23 ...
23
NowWeCw I05.2 upA 24 24 24 24
Max.VW. w 25 25 25 25
26 26 26 26
Max.R.A cx, 0,4 27 27 v 27
maAaW.C. 13228 uqA 28 28 a 28
Max.V.6. 25 29 n 20 29
IZN 30 30 w 30
Max p,w Cw 0 ug4 J1 31 31 31
"aaaaa.ox, 751 ugA 32 32 v
May.Vida. 1a2 m 33
0 u
A
wo klu�IX4
�
P
V?
11,19/95 PAGE I

TOXICANT ANALYSIS
';Pramanr- CU_ :PmmeM- M Pax- ZN
me PwneM- '
: saa, _C_._.._?llw+ sn"ew_C_.._.._ sev.mro-
RESULT9 n BD41/1DL AWtl Data RESULTS a BDL-IQDL A al Dan RESULTS NIP BDI.IrzDL AMW Dam RESULTS n
Sal Day. 7.5%2895 1 10 10 Sal Dar. t&7W I 25 a50 sat N,x. 0 1 142 142 SW Dar. 32225J97 1
W. 12.65710 2 13 13 Mar 1]285] 2 25<50 Mam 25 2 70 70 Mam ]644265] 2
C.V. 956]9M] 3 13 13 CV, 0.970n 3 25<50 6.V. 0 3 37 37 D.V. 0A232226 3
a 22 22 1 25<50 a 68 69 a
5 5<10 5 25<50 5 ]a )a 5
AlhFacM- 6 53 53 Mutt Facts-- 6 25<50 Anh Rani- 6 81 BI ]MhFaaar- 6
Max.Vane JD V 5<10 Max.Vans SJ _.._.._.._
P9a - P9'I iS ] 25<50 W.
Vane 25 µq1 :� ) 61 6I Ma.,Valle 1a2996 ':? ]
Max.Pra6 C. 0 PW { 6 Max,Pred Cw 0 µy1 8 Max.Nod Cw 0 P95.. a Max.Prod Cw 0
PW
NOwads Cw 75161 9 Nowada Cw 1052] 9 Noxade Lw iJ22.&yql .! 9 Nvxabla Ow 751.6190:ii 9
P9a:::: :::
0 1 0 10 0
n n 1
12 12 t2 2
13 13 13 13
U L 1. 14
15 15 13 5
16 Is 16 Is
1) 1)
13 15 Is I6
9 10 19 19
20 0 20 20
21 21 21 21
22 22 ZZ 22
23 23 23 23
24 2a 24 24
25 25 25 25
26 26 26 26
2] v 27 2]
26 2e 26 28
29 N 29 29
39 3 JO 30
31 31 S
u u u u
33 33 ] ]]
L L 3a 3a
0I19M PAGE:

TOWN OF SPRUCE PINE
WASTEWATER TREATMENT PLANT
FIGURE A
FLOW SCHEMATIC
PLANT
EFFLUENT
wed ;i
t.
a' i*x-:=
CHLORINATION/
DECHWRINATION
BASINS
CLARIFIER
.;," INFLUENT INFLUENT
3
CIARIR PUMP STATION BAR SCREEN
rs
SLUDGE
STABILIZATION .�.s
CIARIFIIIt
GRIT
SEPARATOR
��yy yy t �'•
OXDITATIOON
u 1

TOXICANT ANALYSIS
Fe Nib Nuns SPRUCE PINEY P i
NGOESI:NCU021423
OwlMOO)!._.._.._.._.._.._..-06!
7010a(c6) _.._.._.._.._.._..!?5!
IWC 1%)I 2L01
ReC lSbeem iNORTHTOE RIVER
Shea.Clea K-�ROUf_____.._.._..J
r._.._.._..-----
_._..RNILR REE_"-- —SU.._LT.._.._..
S j
Co
Mex.Pletl Qv 66.E a,A
NlowaEb Cw 19,11upA
Max.Vtlue 17!
IPB
Mex.Pretl Cw 50iu0A
mla—b LW 11NAiupA
Max.Value SOi
HG i
Max,Prod Cw 7.37iu%4
NbwaNe CW 0.6:uw
Max,Vlue 1.1
CA
Max,RetlM 105!u'A
i AmatAa ca, 23e6.7!ull
Max,Vtlue 30!
jCU
AllaaaWCw 323.3jupA
N V Cw 3353iupl
MaxMva.Wue 5]j
NI
Maa,PrW Cw 25:.W
Nbwebls Cw 42 .I:ugi
Max,Vtlue 25
jZN
Mu Paw Cw 3A0.6!uyt
NbwaNe CW 23M.7iugA
Max.Vase 1421
0 !
6 IV96 PAGE'

SPRUCE PINE WWfP
UPSTREAM DOWNSTREAM
MONTH Temp DO Saturation Fecal Conductivity Temp DO Saturation Fecal Conductivity
May-95 8 10.8 91% 134.8 8 10.5 88% 131.8 54.5
Apr-95 11 10.5 95% 680 49.4 11 10.2 93% 597 50.7
Jul-96 22 8.1 93% 206 56 23 7.7 90% 433 62
Jun-96 8.2 0% 403 45 7.9 0% 304 53
May-96 8 0% 345 45.6 7.9 0% 284 49.8
Apr-96 9 10.3 89% 84 49.5 9 10.4 90% 146 60.5
Mar-96 0% 0%
Oct-95 0% 0%
Sep-95 0% 0%
Aug-95 0% 0%
Jul-95 0% 0%
Jun-95 0% 0%
Notes
NCO021423 8/16/96

SPRUCE PINE WWTP
UPSTREAM DOWNSTREAM
MONTH Temp DO Saturation Fecal Conductivity Temp DO Saturation Fecal Conductivity
Oct-94 8 10.8 91% 134.8 8 10.5 88% 131.8 54.5
Sep-94 11 10.5 95% 680 49.4 11 10.2 93% 597 50.7
Aug-94 14 9.5 92% 89.3 46.4 14 9.3 90% 938 48.6
Jul-94 16 8.9 90% 888.2 48.3 16 8.6 87% 835 50.2
Jun-94 15 8.9 88% 273.9 49.4 15 8.9 88% 284.8 50.9
May-94 10 10 89% 108 46.3 10 10 89% 123.8 46.5
Apr-94 15 7.3 72% 740 164 16 7 71% 758 224
Oct-95 12 10.2 95% 283 51.2 12 10 93% 630 59.4
Sep-95 17 8.6 89% 211 64 18 8.5 90% 426 68
Aug-95 18 9 95% 138 60.1 18 8.9 94% 208.7 63.8
Jul-95 15 9.4 93% 290.9 52.2 15 9.2 91% 459..5 56.2
Jun-95 11 1 10 1 91% 1 143 1 45.6 1 1 11 1 7.7 1 70% 1 251 1 47.5
Notes
NCO021423 8/16/96

W1IULELi-TLUEffFl1)%ICI'I-vl'ESI'ING O1SELFMUNI1'0NINGSUMMARYI FN,Ju119,I996
' f D
Spsncsr W1YTP PERM CFIN LIM:17% 92 Pua Paaa Pas
N(W25593AA11 4 371A1 _ '- - Paaa -- _
8i^: Fayeoy:Q PIP Ala AprlW Oo NaCorap:SWGlII 0] Pan - - Paaa - - Pa.s Pa..
Cr:0.75 Ngim:MNS Subbuu:YAXJ4 94 Pua - - P... - - Pau Puv
7011.73 5peekl 95 Pau _ -- _ '-
7VIU:S.tlO IWg4F.17 0.mr. - _ Pau - r Pasa - _ Paaa
oe Pan - - Paaa - -
kplod•l. WWTP PIDIMCIIN LIM:73%;WIR'N R OCFAOCAl1UIrSCRK Y 92 Pua - Pass - _ FOR - Paaa Pau Lan.
NCW2066/A)01 Dcau;7)194 Rapocy:Q PIP A Mu lac Sup DO. No.Cmp:SWGIJ2 W Paaa - Pau - - Ya.a Paas _ _ py
C.euuy:kaDuafW Region:ARO SWRoaia:ORDD2 W Fsu - Fatl Fai pa. Paaa Pau Fad Fad Fad Fat PP:AO Spuul 95 Pau FOR Fad Fatl M FsY Pas
)Q 10:).10 PNC1%):75.0 ONer. - Pess - -
Pas
9B - - 29.8 29.8 N1
Svhq L.k. %V%VTP PERM CIIR LIM:53% 02 - Pass ._ - Paaa Pasa Para NCW3W70001 W,.:VJAO f qucary:Q PM A Feb May Au,,Nov N.C.,,: Q3 - Pua - - Puu - ._ Pun Paaa ...Comaya'mdwalwl Netima'NIl $WJuuio:L'1'1'14 94 - Pasa -. _. P... - ._ Peaa Yav IT:LS spd•1 95 _ _ _ - - --
7Q10:400 DVCy%0.5 O'Jau 98 - P.O. - - Pua Pass _
SPrb%' Indu.arks PERM:2411R PIP AC LIM SON,FOID 02 Pa..$ - - Peul --- -� Paa1 Peavl NC'000575M101 Dg19:17INS Fanpmry:Q PAa A Ir A,JWOa N.Ceap:SWG12 93 Pu.l - - Paul - - P...I - Pera1 -- -
Cma1Y:SnxIwW R"ima•RO Subbula:LOWS 04 P...I - - Paual - - Paerl P...I
PF:0.03 S,c W 95 Pua1 Pua1 p...INIVP a _. .-
7U10:340 IWC(%):0.14 OWuc _ 95 NIBPau - - - - - Pnaa --- _
WBPaaa -
1)Sy ur�s Plus WIYTP ll'ERM OIN,LIM:2.1%;II:PID.6 CIIR I.IM 2.7% J V 02 - 'Paa -- - Paaa /Pen fPaa�NCW21i2)N01 48ia:IWl94 lisaprnT:Q PIF A Fcb May Avg Nuv Nmfnnp:5WGll3 0 - Paa - - sa Paaa Paaa
Ceunay:Mialell l--r Regius:AARRO Subbuinil7 --ff- 94 - -Peaa lie... - - Pea _ lPas 0 Wow J(� `� Spnlal 95 - Pua Peaal,�
7Q1644.0+ DVCI%):2.1 a OOB' w - (Pu 7 _ _ Pan/ _ - Pv
Syvan D-Pbuv 1 PERM CIIN LIM:14%;EAP W A021 CIIR LIM 25%(GRAD 02 - - -NGWtlI540001 49ia:IWIn2 I FiupcocT:QFIF A Feb May Aug N.v NmCcau SWGIJi 93 - H - - H - - 0 C'muy:WWa Regiw:N90 Sub1uaaia:Nliw2 W - Pua - Pua - - P... Pass
PF;0.021 S"M 95 - P... - - P... _. _ Paaa - -7Q10020 W/O%):44 98 - N"... - _ DI NN/Pau
9.10cy %Y%YTP Pum aW Iim:74'k;if PF 10 du Dm 79% V 92 Pus - - I m Peaa - Paaa --- _ Paaa -- _
NCW2W369UI Dutia;9OPIS 1'vepeley;Q PM A Ja Apr Jul NunCon,sinak 93 Fad Fa Pua Fall Fag Pau Pau Fa4 Fa Poi
Cmnay:Gu.uss Rgiae:MRO SnWuasm CIIDS W Pau - - Fs4 Pus Lal. Pump... Pasa - Lne P.O.
PF:0.5 s'd.1 a5 Paa - - Pau - P.a. Pas ---
._
7QI0:027 DYL1%):74 Cada: 08 fall FA Fau Pau - -
Saar RnHrprlas PURM:2411R I1:50 AC MOM IgyS ITI11)(GRAD) 92 -
NC➢0222171W111.0=51194 Fa,,uc";5OWDVA N..Ccuu, 93 - - _. -_ - _- >pB 0• - -- - _ -
L'ouwY:WJa Rctliem bbadn RRO Su :W:1103 as - - - - >1001,>IOq
PF:WA spe4W 95 _ _ >I001
7QI0:0.0 1WC(%):IW n:
.O oa4 W _ _ _ _ >I00
SWr kulerprks Yar Cask PERM:2411R 1,C50 AC MUNIT CPIS F1110(GRAB) 92 - _ _ _ _ >100• >1W' aIW,>IW' >100,
NCW221tlL001 Oepa;11195 PwPracy:A Woc..p: 03 45.06• - - _
Couoay:McaLicaWat Rclim;MNO Su66nio:CJBU W OP -PF:NA SpecW BS - -- - _ '- -
7QI0:00 IWC(%1:IW.0 Ocuu. a1W _ rT - --- ... _.
SI.r %V%YTP PERM CIIR LIM:99%(Nar pcnr711M) V 02 .15 61 61.2 FaL21.2 - 01 fie 21 21 05 21 3D
NC00510411901 Dasm:9119J Fasprrcy:Q PIF A Ian Ap.Jul N.Cmp: 93 39 of 21 Ni 21.39 a15 39 21 39 3B 21 a15
CemY:klmgomuy Rcgim:FRO Subbuin Cl'FID 94 38.7 M >98,86 86 61 .15 39 01 96.2 61.2 Ni AS
PF:0 W S"'i.1 a5 61.2 38.7 08.2 61.24 >99 61.2 aQ a15 39 7Q10.00 IWG%):IW ONer: 98 BB as 81 81 01 61 >B9 61
Sblurllla Yrorlh Crack W%YTP PERM CIIk LIM:36% V 02 L.I. Pua - LOW L.I. - pa•.,Pac. -- - Para ... ...
NC00311N6Wl 0ctia:51I93 Fagacaq.Q PA; A lac Apr Jul N.C..,.SINGIJ; 93 Paa - - Pva•,Pasa - - Pava,Peaa - Paea
Caney:I.W Rcgim:MRO Subbuis:YAD 94 Peaa - _ Paaa - - Pus --- _ Pass _
P11:4.0 s,cl.l 95 Paaa - - Pa'. - ... LOW Pas. _ Pua
7QI11:11.0 FWCl%):MO Case,: as Pa.. - - Pan _ ._ _.
0 luonucmire fWlwc'.'itsi0caa mocowfi. Y Pm IW2 Da.ArWlabk
IEGFND:
PIiRM+Pcmwll"irc., LET-Adndviavarivul<Ow-Tart., Faccpcay=Mosknriatl fruymacy;Q-QuAdMy;M.Mmhly,DM.DimmlNy:SA ScalianauWl;A
@ain+1vu nwah anu'A 7QI0=Nacivioe r9cam low Duw uimim lcH) A= uuasl imnnenn ...cacao'ao"14 Y AuuWIY:OWD OoIy wl+n Jirclurtinp;l>DiscnwinucJ ovailusin8 rnryianew;IS Ccaul-lue wJepuvk law,
yy Y tl yepm Clgm Wlwe Mmllw lhw--61c-Amw-ca.JAN,APRJIN.,OCf NmC'anp=Cu....0 L'unyYiaacc llcyulmnc.
PF=Nw adala:Ruw(MGD) low: I.6w.l w.ao eueac-M,mu YA'nic r.)ul cl.m.aCil AC•Acwe CIIN=Glum.
ILu Nnwim:fu FuhcsJ Mieuw;•-.d;Nk-N.'P:mr-MvsiJ'hrinm:CTV-4um.value;P�MavWiar al m"d accmwasu u WeW a"'a'nim:u-PallomaA br OF Tot Elal Gmoe;W-Dad wa N.lwnnq Nwaiwi:-...13usmoyuimd;NN-Nw rcpurwd;( I Dctinnintl of Quwau Yw:iliay Amniy Slnw:I InsuivgN Ncrly laaacJ(fomwmu0;11-Arrive buaw JiulmBinBa Mwc Jua avuil.Wo lonrwmbin yueuion J=ONCWpmu.. Jcd
41

Spruce Pine WWTP
i
I
Residual Chlorine Ammonia as NH3
(summer)
7010(CFS) 43.5 7010(CFS) 43.5
DESIGN FLOW(MGD) 2 DESIGN FLOW(MGD) 2
DESIGN FLOW(CFS) 3.1 DESIGN FLOW(CFS) 3.1
STREAM STD(UG/L) 17.0 STREAM STD(MG/L) 1.0
UPS BACKGROUND LEVEL(UG/L) 0 UPS BACKGROUND LEVEL(MG/L) 0.22
IWC (%) 6.65 IWC.(%) 6.65
Allowable Concentration(ugA) 255.55 Allowable Concentration(mg/1) 11.95
Ammonia as NH3
(winter)
7010(CFS) 56
Fecal Limit 200/100ml DESIGN FLOW(MGD) 2
Ratio of 14.0:1 - DESIGN FLOW(CFS) 3.1
STREAM STD(MG/L) 1.8
UPS BACKGROUND LEVEL(MG/L) 0.22
IWC(%) 5.25
Allowable Concentration(mgA) 30.34
7/19/96

Facility:Town of Spruce Pine
NPDES#:
Receiving Stream:
Comment(s):
gage number not available
Low Flow Record Station Number:
Hydrologic Area Number: HA10
Drainage Area Low Flow Record Station: 104.00 miles squared
Qave Low Flow Record Station: 187.20 cis
s7010 Low Flow Record Station: 34.00 cfs
w7Q10 Low Flow Record Station: 43.00 cfs
3002 Low Flow Record Station: 63.00 cfe
must be<400 sq.Mlles
Drainage Area New Site:F133.00 sq.miles
• MAR New Site: 2.0 cfs/miles squared
Oave per Report Equation: 266 cfs
s7Q10 per Report Equation: 43.60 cfs
w7Q10 per Report Equation: 63.39 cfs
3002 per Report Equation: 91.50 cfs
Continue
Drainage Area Ratio: 1.28 :1
[new DA/Dead gage] Continue
Weighted Ratio: 0.91 :1
Over-ride Inappropriate Site (y):
' Drainage Area New Site: 133.00 miles squared
MAR New Site: 2.0 cfe/miles squared
Weighted Gave per Report Equation: 266 cfs -
Weighted s7Q10 per Report Equation: 43.49 cfs
Weighted w7010 per Report Equation: 55.77 cfs
Weighted 3002 per Report Equation: 81.58 cfs

DIVISION OF WATER QUALITY
July 19, 1996
MEMORANDUM
TO: Alan Clarrk�/�
THRU: �on Safrll ,-'
Ruth Swanek �sc�
Carla Sanderson
FROM: Jacquelyn M. Nowell
Coleen Sullins�r�
SUBJECT: Draft Environmental Assessment for the Town of Spruce Pine WWTP
Expansion
NPDES Permit No. NC0021423
Mitchell County
The instream Assessment Unit has reviewed the subject document and finds the
document to be incomplete. One concern is that an expansion to 2.0 MGD has not been
previously reviewed by this Unit. There is no documentation of a request from Spruce
Pine for speculative limits to determine the impacts of an additional 1.4 MGD of wasteflow
on the North Toe River. In addition, the EA does not list existing NPDES limits,nor does
it address the facility's recent request for SOC limits. In February 1994,a WLA was
completed for a modification of the Spruce Pine facility from 0.6 to 0.8 MGD. Secondary
limits for oxygen consuming parameters and monitoring requirements for several metals
were recommended at that renewal. In April 1996, an instream assessment for Spruce
Pine's SOC 67(b) request was completed by this Unit. SOC limits for wasteflow, BODS,
TSS, and fecal coliform were recommended in that request.
A preliminary modelling analysis predicts that tentative limits for the conventional
constituents at the expansion flow would be:
BOD5 =30 mg/I
NH3 = 12 mg/l (summer)
NH3 =monitor (winter)
TSS = 30 mg/I
Fecal Coliform =200/100ml
Chlorine =28 µg/I
PH = 6-9 SU
The NH3 limits are based on protecting the North Toe River against instream toxicity. The
instream waste concentration at 2 MGD is 7%. A chronic toxicity testing requirement with
quarterly monitoring would remain a condition of the NPDES permit A complete
evaluation of metals limits and monitoring requirements will have to be addressed at the
time of formal NPDES application.
The EA should include a discussion of the need for the additional flow (i.e.,
projected population and industrial growth),the level of and steps being taken to reduce
any inflow/infiltration in the wastewater collection system,the secondary impacts
associated with the projected growth and measures taken to minimize the impacts (such as
water conservation measures required by the town for any new development), and the

Memo to Alan Clark
page 2
affects of the expanded discharge on the North Toe River. Another missing component of
the EA is an alternatives analysis that evaluates the feasibility of a nondischarge alternative.
Alternatives to discharging all or a portion of the wastewater, such as spray irrigation or
water reuse, should be addressed in the EA.
The revised EA should address the issues raised in these comments including the
expansion limits and the level of treatment the Town would have to achieve.
cc: Forrest Westall
WLA File

SUMMER
SPRUCE PINE EXP TO 2 . 0
NH3 TOX=12
---------- MODEL RESULTS ----------
Discharger : SPRUCE PINE
Receiving Stream : NORTH TOE RIVER
----------------------------------------------------------------------
The End D .O. is 7 . 45 mg/l .
The End CBOD is 5 . 66 mg/l .
The End NBOD is 4 . 33 mg/l .
----------------------------------------------------------------------
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flo
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
------ --------- ------- ---- ---- -- ---------
Segment 1 7 . 21 0 . 00 1
Reach 1 60 . 00 54 . 00 0 . 00 2 . 00000

*** MODEL SUMMARY DATA ***
Discharger : SPRUCE PINE Subbasin 0403
Receiving Stream : NORTH TOE RIVER Stream Class : C-TR
Summer 7Q10 : 43 . 5 Winter 7Q10 : 56 . 0
Design Temperature : 23 . 0
ILENGTHI SLOPEI VELOCITY I DEPTHI Kd I Kd I Ka I Ka I KN I KN I KNR I KNR I SOD I SOD I
I mile I ft/mil fps I ft Idesignl @20 Idesigni @20 Idesignl @20 Idesignl @20 Idesignl @20 1
-------------------------------------------------------------------------------------------------------------------
I I I I 1 1 1 1 1 1 1 1 1 1 1
Segment 1 1 1.101 8.001 0.573 1 2.33 1 0.29 1 0.25 1 4.30 1 4.031 0.38 1 0.30 1 0.38 1 0.00 1 0.00 1 0.00 1
Reach 1 1 I 1 1 1 I 1 1 1 1 1 1 1
-----------------------------------------------------------------------------------------------------
I Flow I CBOD I NBOD I D .O. I
I cfs I mg/l I mg/l I mg/l I
Segment 1 Reach 1
Waste 1 3 . 100 1 60 . 000 1 54 . 000 1 0 . 000
Headwatersl 43 . 500 1 2 . 000 1 1 . 000 1 7 . 720
Tributary 1 0 . 000 2 . 000 1 1 . 000 1 7 . 720
* Runoff 1 0 . 000 2 . 000 1 1 . 000 1 7 . 720
* Runoff flow is in cfs/mile

SUMMER
SPRUCE PINE EXP TO 2 . 0
NH3 TOX=12
I Seg # Reach # Seg Mi I D .O. I CBOD I NBOD I Flow
1 1 0 . 00 7 . 21 5 . 86 4 . 53 46 . 60
1 1 0 . 10 7 . 23 5 . 84 4 . 51 46 . 60
1 1 0 . 20 7 . 26 5 . 82 4 . 49 46 . 60
1 1 0 . 30 7 . 28 5 . 80 4 . 47 46 . 60
1 1 0 . 40 7 . 31 5 . 79 4 . 45 46 . 60
1 1 0 . 50 7 . 33 5 . 77 4 . 44 46 . 60
1 1 0 . 60 7 . 35 5 . 75 4 . 42 46 . 60
1 1 0 . 70 7 . 37 5 . 73 4 . 40 46 . 60
1 1 0 . 80 7 . 39 5 . 72 4 . 38 46 . 60
1 1 0 . 90 7 . 41 5 . 70 4 . 36 46 . 60
1 1 1 . 00 7 . 43 5 . 68 4 . 35 46 . 60
1 1 1 . 10 7 . 45 5 . 66 4 . 33 46 . 60
I Seg # I Reach # I Seg Mi D .O. I CBOD I NBOD Flow

MEMO cov
DATE:
SUBJECT:
TO: Bl „
ermCuv W� QI( � (6m � ��� L
IN � L �� -� tDy�'"�h�✓S
n 'Y' alk�nt 5
h a�
ix
�Y4
Iva V
W(�n .5yw�S/z rlr5r� ,1
pvyt (N G+'i � From:
�l{'Y1427h I�`PN WN�if u�`� �e--
? _ North ' Carolira epartmrt of Environment,
Health, and Natural Resources gD Printed n Aa ae�a,

DMSION OF ENVIRONMENT MANAGEMENT
June 25, 1996
MEMORANDUM
TO: Alan Clark
THRU: Don Safrit
Ruth Swanek
Carla Sanderson
FROM: Jacquelyn M. NowellskN
SUBJECT: Draft Environmental Assessment for the Town of Spruce Pine WWTP
Expansion
NPDES Permit No. NC0021423
Mitchell County
The Instream Assessment Unit has reviewed the subject document. Our primary
concern is that an expansion to 2.0 MGD has not been reviewed by this Unit. There is no
documentation of a request from Spruce Pine for speculative limits to determine the impacts
of an additional 1.4 MGD of wasteflow on the North Toe River. In addition, the EA does
not list existing NPDES limits and it does not address the facility's recent request for SOC
limits. In February 1994, a WLA was completed for a modification of the Spruce Pine
facility from 0.6 to 0.8 MGD. Secondary limits for oxygen consuming parameters and
monitoring requirements for several metals were recommended at that renewal. In April
1996, an instream assessment for Spruce Pine's SOC 67(b) request was completed by this
Unit. SOC limits for wasteflow, BOD5, TSS, and fecal coliform were recommended in
that request
It is our recommendation that the Town submit a written request to the Technical
Support Branch to determine tentative limits at the expansion flow of 2.0 MGD. These
limits will provide the Town with some information for the level of treatment the new plant
would have to achieve.
cc: Forrest Westall
WLA File

DMSION OF ENVIRONMENTAL MANAGEMENT ���� aka
Junel2, 1996 \
- G( fe �eS sr
w� E
MEM O N U RA D M � c C 1ov? ��
/-� lJ� �
TO: Don Safrit
Forrest Westall �tl'
Beth McGee J G vzf-
FROM: Alan Clark \5
SUBJECT: Preliminary Draft EA for Town of Spruce Pine WWTP EOM
Enclosed are copies of the subject draft EA for inhouse review. Please provide comments by July
1. Our inhouse comments will be provided to the consultant. Once the EA has been revised to
reflect our comments, the document will be resubmitted for departmental review and comment.
Based on a cursury review, I noted that they have not provided maps of the existing and proposed
service areas, and that they have not considered the potential secondary impacts of development.
The rationale for the plant size is generally discussed but there is no quantitative justification for the
increase such as population projections or gallons per day of I/I flow. Also, if the town is having
1/I problems, they need to discuss and have a plan to address them. I did not see any proposed
waste limits. Do we anticipate these changing from current levels? Finally, I am aware of water
supply watershed sensitivities in this area. Is this an issue?
I look forward to your comments. Let me know if you have any questions..
Enclosure

SOC PRIORITY PROJECT: Yes XX No
IF YES, SOC NUMBER 96-03
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Greg Nizich
DATE: August 2, 1996
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Mitchell
PERMIT NUMBER NCO021423
PART I - GENERAL INFORMATION
1 . Facility and Address : Town of Spruce Pine
Mailing: Post Office Box 189
Spruce Pine, North Carolina 28777
2 . Date of Investigation: June 27, 1995
3 . Report Prepared By: Michael R. Parker
4 . Persons Contacted and Telephone Number: Robert Wiseman
704/765-3000
5 . Directions to Site: From the intersection of U. S . Highway
19E and North Carolina Secondary Road 1274 , travel north on
NCSR 1274 0 . 45 mile to Pitman road. Turn left onto Pitman
road and go to end of road to the wastewater treatment plant .
6 . Discharge Point (s) , List for all discharge points:
Latitude: 350 55 ' 401, Longitude: 820 05' 00,,
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G. S . Quad No. D10NE U.S.G. S . Quad Name Spruce Pine, N. C. .
7 • Site size and expansion area consistent with application?
_X_ Yes No If No, explain:
8 . Topography (relationship to flood plain included) : Plant is not
subject to flooding.
Page 1

9 • Location
Of nearest dwelling: Greater than 300 feet•
10. Receiving
stream
or affected surface waters: North Toe
. Classification: C-trout b• River River
C. Basin and Subbasin
Describe receivingNO FBR 06
ream
uses: 5isindustral twaa Yfldlifespropagation downstream
canoein pertinent
supply, wading,
PART II - DESCRIPTION
OF DISCHARGE ARID TREA
1 ' a• Vol
ume of wastewater TMENT WORKS
b•
Design Capacity) to be permitted 2 . 0 MGD (Ultimate
., What
is the current Treatment facility? Permitted capacity of the Wastewater
C. Actual
treatment capacity of the
design capacity 0 . 600 MGD, current facility
(current
Authorizationanstruction activities
to Construct issued allowedin by Previous
e• Please provide a description Previous two years:
wastewater ption of existin
wastewater treat Of
facili�iea:or substant '
grit removal, ment pump tally
consist of an influent The existing
aeration basins primary clarifiers,
dechlorinat ' SeCOndar tricklIn P station,
facilities clarifier, chlorination ea1 2
drying beds flow tot aliZingroand digester, six sludge
and
f Please recordin
facilitpe8vide a descr ' g equipment .
It iPtion of proposed wart
grit removal unit proposed to install ewater
oxidation new influent a new bar treatment
existin ditch, construct Pumps, co screen and
g aerat ' nstruct a new
the existin ion basins into oaer bicarifiers, convert
convert g anaerobic digesterto sludge andthe
construct and d Primary clarifier
t ho t the
ruct a sludge truck tO chlorine holding tank,
Pipingtank,
appurtenances , ing facility and
necessary
g' Possible toxic
impacts
h to surface waters: None
Pretreatment Program
anticipated.
in development (POTgrs only) :
should berequired approved XX
not needed
2 . not
handling and utilization/disposal scheme:
Page 2

a. If residuals are being land applied, please specify DWQ
Permit Number WQ0002349
Residuals Contractor
Telephone Number
b• Residuals stabilization: PSRP X PFRP _
— — OTHER
C. Landfill :
d• Other disposal/utilization scheme (Specify) :
3 • Treatment plant classification (attach completed rating sheet) :
Class III .
4 . SIC Codes (s) : 4952
Primary 01
Main Treatment Unit Code: S10003ary 55
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only) ?
CA $1, 147, 700
ARC 200, 000
FmHA-RDA 1, 528 , 300
Total $2, 876, 000
2 . Special monitoring or limitations (including toxicity) requests :
3 • Important SOC, JOC, or Compliance Schedule dates: (Please
indicate)
Submit Plans and Specs . Date
Award Construction Contracts July 31, 1996
Begin Construction of WWTP February 15, 1997
Complete Construction March 30, 1997
Comply with final NPDES limits September 30, 1998
November 30, 1998 .
4 . Alternative Analysis Evaluation: Has the facility evaluated all
of the non-discharge options available. Please provide regional
perspective for each option evaluated.
Connection
Spray Irrigation: Not feasible due to land constraints .
Subsurface: tNotefeasible Sewer
due toSystem:
economics andRsoilnconditions .
Page 3

Other disposal Options: NA
5 • Other Special Items :
PART IV - EVALUATION AND RECOMMENDATION
The Town of Spruce Pine has made application for expansion of their
existing wastewater treatment facility from 0 . 600 mgd to 2 . 0 mgd.
The Town has outgrown the existing facility with flows o2 . 0
mgd at times . Additional sources of wastewater are presently being
constructed or are exceeding 0 . 900
planned to be constructed and connected to the Town
Of Spruce Pine' s wastewater treatment facility. See below:
AC-Correctional Facility
AC-Private Prison (proposed) 112, 500 gpd
Domestic increase 75, 000 gpd
Current daily excess 7, 500 gpd
Total 105, 000 gpd
300, 000 gpd
The Town has applied for an SOC and it is at public notice and should
be issued after August 3 , 1996 .
Plans for the upgrade have just been submitted and should be under
review. Since the new AC-Correctional facility is already under
construction it would be it would be beneficial to proceed as quickly
as possible with the issuance of the permit .
Based on the wLA for the SOC there should not be a problem with the
Town complying with the effluent limits at a flow of 2 . 0 mgd.
The town through its engineers has submitted an Environmental
Assessment in accordance with the SEPA. The EA was somewhat lacking in
addressing the necessary items such as alternatives to treatment .
Staff of the ARO feel that a new treatment plant and discharge is the
best alternative since Mitchell County has very steep toor phy and
land areas are not very suitable for ground adsorptionpg or land
application of this much wastewater.
Also, the Town has been made aware of some comments concerning the
inadequacy of the EA and the engineers should be working on an
addendum.
The ARO staff has been working for some time with the Town of Spruce
Pine for construction of a new wastewater treatment facility because of
flow, DOD and TSS permit violations .
water quality of the North Toe Rive This project should improve the
permit be issued. r. It is recommended that the
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