NC0020621_PERMIT ISSUANCE_20001230

NPDES DOCUWENT SCANNING COVER $MEET
NPDES Permit:
NC0020621
Boone (Jimmy Smith) WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtQ
Permit Modification
Complete File - Historical
Correspondence
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
December-30, 2000
Thin document is printed on reuae paper -ignore any
content on tiie reverae aide

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
Mr. George M. Sudderth, III
Town of Boone
P.O. Drawer 192
Boone, North Carolina 28607
Dear Mr. Sudderth:
IT
1
,a �
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RE50URCE5
December 30, 2000
Subject: Issuance of NPDES Permit NCO020621
Boone Wastewater Treatment Plant
Watauga County
Division of Water Quality (Division) personnel have reviewed and approved your application for renewal
of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is
issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of
Agreement between North Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as
suosequenuy amended).
After a review of the draft permit, the following change has been made to your final permit:
The months during which effluent toxicity monitoring should be conducted have been changed to
reflect your facility's current schedule. You will therefore be required to monitor for toxicity in
March, June, September and December.
As mentioned in the cover letter to your draft NPDES permit, a cyanide limit has been added, giving both
weekly average and daily maximum effluent limits for cyanide. Weekly average limits are assigned to pollutants of
concern to reflect a chronic effect on biota in the stream. Chronic exposure is generally measured as a weekly
exposure, thereby necessitating a weekly limit for pollutants of concern. While the Division agrees that it is
complex for the Town of Boone to take the appropriate precautions against exceeding a weekly average limit, the
intent of this approach is to provide some flexibility in compliance while still protecting water quality.
As for the addition of a selenium limit, this too, remains as in the draft permit. Although only 11 data
points were available for analysis, one of these points had a reasonably high concentration of selenium. When
statistical analyses were performed to predict the maximum potential concentration of selenium in your facility's
effluent, it exceeded the allowable concentration of selenium instream. Particularly since you are discharging into
the South Fork New River, which is designated as an Outstanding Resource Water by the State of North Carolina,
the Division is concerned that effluent from your facility may have the potential to contaminate the receiving
stream with selenium. After one year of data collection, you may request that the need for a selenium limit be re-
evaluated, but for the time being the limit will remain.
Likewise, the BOD monitoring frequency must remain as in the previous NPDES permit. This is due in
part to the classification of the receiving stream, but also the class of your facility. Statewide guidelines exist which
dictate the monitoring frequency for different wastewater parameters be based upon the class of the facility. All
Class IV facilities receive the same monitoring frequency for BOD.
With regard to mercury, the Division has set up a work group to establish a more sensitive method for
mercury detection. When this information becomes available, you will be notified accordingly. Until this time,
you may consider a non -detect reading for mercury as being in compliance with your NPDES permit.
Lastly, I would also like you to draw your attention to the effective date of the permit. The attached
permit does not become effective until April 1, 2001. Until then, you are bound to the conditions of your current
NPDES permit.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT US ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adludicatory hearing upon written request within thirty (30) days following
receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center,
Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by the Division of Water Quality or permits required by the
Division of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental
permit that may be required.
If you have any questions concerning this permit, please contact Natalie Sierra at telephone number 919)
733-5083, extension 551. The Division commends the Town of Boone on the excellent efforts it has mJe to
maintain water quality in the New River Basin.
Sincerely,
Original Signed By
David a Goodrich
Kerr T. Stevens
cc: Central Files
Winston-Salem Regional Office/Water Quality Section
l,ntPDES Unit
Point Source Compliance Enforcement Unit
EPA Region IV, Roosevelt Childress
Aquatic Toxicology Unit

Permit NCO020621
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Town of Boone
is hereby authorized to discharge wastewater from a facility located at the
Boone Wastewater Treatment Plant
NCSR 1515
East of Boone
Watauga County
to receiving waters designated as South Fork New River in the New River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective April 1, 2001.
This permit and authorization to discharge shall expire at midnight on March 31, 2006.
Signed this day December 30, 2000.
Original Signed By
David A. Goodrich
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO020621
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Boone is hereby authorized to:
1. Continue to operate an existing 4.82 MGD wastewater treatment system with the
following components:
i Mechanical bar screens
i Parshall flume
i Influent pump station
�- Aerated grit removal
i Dual oxidation ditches (with fine bubble aeration)
i Flow enualizainn
i Dual secondary clarifiers
i Deen bed tertiary filtration
i UV disinfection
Belt presses
Dual aerobic digesters
i Sludge drying beds
i Sludge holding tank
�- Cascade aeration
The facility is located at the Town of Boone Wastewater Treatment Plant on NCSR
1515,east of Boone in Watauga County.
2. Discharge from said treatment works at the location specified on the attached
map into South Fork New River, classified C-ORW waters in the New River Basin.

Ll
C:
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NX
400
It
if
om:
2�'
Ir
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1
Discharge Point
_o t
r ,
Town of Boone WWTP
Facility
Latitude: 36"12'54" Sub -Basin: 05-07-01
Location-
Lnn
Quad q: Boone
Stream Class: C-ORW
Rccciring Stream: New River
11 /
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T1
1
NCO020621c
tu—med Flow: 4.92 NIGD
r G {'L
Town of 800nc W WTP

Permit NCO020621
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT`"-` "
CHARACTERISTICS
LIMITS ""`
MONITORING REQUIREMENTS
Monthly
Average';,
Weekly
Average
Daily Maximum
Measurement
Frequency
Sample
Type, `
Sample Location
Flow
4.82 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C)
(April 1 -October 31 '
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent, Effluent
BOD, 5-day (20°C)
November 1 - March 31 '
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent, Effluent
Total Suspended Residue'
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent, Effluent
NH3 as N
(April 1 - October 31
2.0 mg/L
6,0 J/Q
3/Week
Composite
Effluent
NH3 as N
November 1 - March 31
4.0 mg/L
/Z,o M�/Q
YWeek
Composite
Effluent
Fecal Coliform
(geometric mean
200 1100 ml
400 1100 ml
Daily
Grab
Effluent
al $es�ual-Ghlorine_�"v
�-
'-28 i /L_-
_Daily_
-- -Grab -,
-_._,Effluents
Total Nitrogen
NO2+NO3+TKN
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Chronic Toxicit 2
Quarterly
_Composite
Effluent
pH3
Daily
Grab
Effluent
Dissolved Oxygen4
Daily
Grab
Effluent
Copper
2/Month
Composite
Effluent
Zinc
2/Month
Composite
Effluent
idA-\
�—Effluent-,
Mercbry�
-- /�
--0-014- /L—
- Weekly—
-Composite-
_ Effluent -
Silver- -
=
L -
I -_'------_\--
�2tMonth-1-ComEffluent
Selenium% _��
5.7 /L_
20~/L�'--Weekly
-Composite
----�Effluent-
Footnotes:
1. The monthly average effluent BODs and total suspended residue concentrations shall not exceed 15% of the
respective influent value (85% removal required).
2. Whole Effluent Toxicity shall be measured using the Chronic Toxicity (Ceriodaphnia) P/F at 44%. Samples
shall be taken quarterly during March, June, September, and December.
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NCO020621
A. (2.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 44%.
The permit holder shall perform at a minimum,guarterhi monitoring using test procedures outlined
in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998,
or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
March, June, September and December. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below
the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the
two following months as described in "North Carolina Phase Il Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase I] Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code TGP313 for the pass/fail results and THP313 for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be'filed with the Environmental Sciences Branch no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and
all concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity sample must be measured and
reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT)
test form indicating the facility name, permit number, pipe number, county, and the month/year of
the report with the notation of "No Flow' in the comment area of the form. The report shall be
submitted to the Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.

DIVISION OF WATER QUALITY
November 21, 2000
MEMORANDUM
TO: Dave Goodrich
THROUGH: Matt Matthews f0
FROM: Kristie Robeson OZ,
SUBJECT: Draft Permit Correction
Town of Boone WWTP
NPDES Permit No. NCO02062 t
Watauga County
NOV 2 8 2000
UENR - WATER QUALITY
POINT SOURCE BRANCH
Our office has received the draft permit for the subject facility. Upon review of
this draft, our office noted that effluent limits page and Special Conditions A(2)
contained different toxicity testing months than the months contained in the facility's
current permit. The facility's quarterly toxicity months currently are March, June,
September, and December. The effluent limits page and Special Condition (2) in this
draft have them conducting toxicity testing during February, May, 'August. and
November. Our office recommends correcting the limits page and Special Condition
page to require toxicity testing to be conducted during March, June, September, and
December. Our offices believes that changing the toxicity testing schedule could create
reporting problems for this facility.
We appreciate your assistance to undertake the necessary steps to correct the
existing draft permit and incorporate the recommendation cited above. Please feel free to
contact me at 733-2136 if you have any questions.
cc: Natalie Sierra
ESB Facility Files

PUBLIC=TICE:I
` STATE.OF
NORTH CAROLINA
1' ENVIRONMENTAL.^`',-,
'MANAGEMENT`
COMMISSION/NPDES
UNIT
1617 ,," MAIL SERVICE
CENTER_'"
RALEIGH, NC 27699-1617 j
i NOTIFICATION OF. INTENT
' TO ISSUEA.NPDES ` }!
WASTEWATER PERMIT `t
10n'the 'basis , df;thoiougfi�
staff review and application)
of
ITA
nt' ,discharge( renewal f6i7e7facil
ition System Nn Watau `Calm
wastewater diso-' ggm treated waste
remit to, .the'. pen, Mi�tlI mFork;Sout
edjon the attached the,; 0, F River of
3ctwe'46,days•from' rent)y'.fecal N&IS
sh ,y'date WtithIsi residual -.chlorine
F:v 4 $4-quahty'limited. Thi.
rm erNsrr ardor go may: effect .,6
e11 g, ocations in this por
sad parmitrwill,be, receivingstream:
uod1�90ydays efterf '+3
.,n recewe a significe
e of publicinterest.
s oL the �dmh ring.
the
AFFIDAVIT OF PUBLICATION
NORTH CAROLINA—WATAUGA COUNTY
Before the undersigned, a
Notary Public of said County and
state, duly commissioned, qualified
and authorized by law to administer
oaths, personally appeared:
ANGELA GREENE
Who being first duly sworn, deposes
and says: that he (she) is
ias. ACCOUNTING ASSISTANT
of
re of a newspaper- known as THE WATAUGA
ier DEMOCRAT, published, issued and
V entered as second class mail in the
City of Boone, in said County and
State; that he (she) is authorized to
ly make this affidavit and sworn state—
ment; that the notice of other legal
4
1' advertisement,a true copy of which is
attached hereto, was published in THE
i;l WATAUGA DEMOCRAT the following dates:
NOVEMBER 15, 2000
_G3ae607 has�app'
and that the said newspaper in which
Ocstein'Wwauga'
ihm Watauga
such notice a er document or legal
+ P P r e 9
located
ischarging treated
:r'ioto S ulhFork
advertisement was published was, at
i ih'ifie New River:
NowRim::
the time of each and ever such
y pub—
CurrentlY,'lecal!
total, ,residual;
lication, a newspaper meeting all of
Boo,' ammonia,.
'e
the requirements and qualifications
water gawB
of Section I-597 of the General Sta—
lls alloarye.,mayl
vex- allocaions, 'in
tut es of North Carol ina and was a
;orthe eceiJinq
qualified newspaper within the meaning
15-1cw,,4,'.<' i4
of Section I-597 of the General Sta—
tutes of North Carolina.
This 1ST day of Ivby
3
Sworn to and subscribed before me,
this ,d/a�y of j1j�✓/_,/��Q�
�
seat
Notary Public
4 r
i;
My Commission expires_�CJ

Town of Boone
December 12, 2000
,::::7Ms _Natalie=Sierra
NCDENR-NPDES Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
RE: Draft NPDES Permit
Permit NCO020621
Boone Wastewater Treatment Plant
Watauga County
Dear Ms. Sierra:
!J
DEC 18 2000
I
I um - WATER QUALITY
POINT SOIIRCE BRANCH
The Town of Boone has received from your office the draft renewal NPDES Permit for
our wastewater treatment plant and reviewed the proposed changes.
We contacted your office by telephone on 11/29/00 for assistance in interpreting some of
the items in the new permit. In follow-up to that conversation, here are the items we wish
to address:
1) Cyanide: We have had significant cyanide readings in the effluent, therefore we
concur with the inclusion of a limit on the new permit. We wish to address a
potential problem with specific limits for the daily max and weekly average.
We agree with the limits and understand they are in keeping with water quality
standards for the designated use classifications of the South Fork New River.
However, the new limits give us no practical recourse for avoiding a weekly
average violation if we were to exceed the daily maximum. We would be required
to take multiple samples each week and coordinate holding times and analyses
based upon the results of the first sample.
If we experienced a daily max violation and chose not to resample, it would not
1 ° be reasonable to consider the same sample result as a weekly average violation.
We do not feel an average can be computed from one sample measurement.
We propose keeping the new limits for cyanide, but changing the weekly average
to monthly. If we exceeded the daily max or monthly average on any single
sample, we could then resample as necessary to comply for the month. The daily
�j ��1k►� , max would, however be recorded as a violation.
i5J
P.O. DRAWER 192 • BOONE, NORTH CAROLINA 28607 .,..e. m..�==•__•�

2) Selenium: Eleven data points were used in your Reasonable Potential Analysis
(RPA) to determine the need for a selenium limit. Only one detectable reading
was recorded during the Long Term Monitoring Period for our recent Headworks
Analysis. We are concerned about the use of a single sampling event, regardless
of magnitude, for justifying the addition of a permit limit.
We propose continuing the long term monitoring schedule (LIMP) to determine
if there is a true contamination problem with selenium. If any LTMP samples
exceeded the new proposed limits (5.7 ppb and 20 ppb), they would be
permanently added to the new permit in 2006.
We would appreciate a copy of the RPA procedure so we might better understand
the method used to determine the selenium and cyanide limits.
3) Mercury: Our current minimum detection level for mercury is 0.2 ppb. We
request any information you may have on EPA or DENR plans to mandate an
analysis method for mercury with a lower minimum detection level.
4) BOD: The three-year new plant history indicates undetectable BOD levels (<2.0
ppm) in the vast majority of samples. We therefore request the reduction of BOD
�ampling frequency. Until levels warrant increased monitoring, we believe a
Oat/g esser frequency schedule is adequate for assessing impacts from this parameter
�`� on the receiving stream.
nr,r , L
We appreciate your review of our response to the draft permit conditions. We feel these
proposals are both practical and protective of the receiving stream. Preservation of water
quality in the South Fork New River is our highest priority.
If you need additional clarification on the items in this response, please call Jim Barbee at
[phone]. Thank you again for your review.
Sincerely,
��Qc
Ge Zee Sudderth, III
Director of Public Utilities
cc: Jim Barbee, Wastewater Superintendent
Rudy Broschinski, Chief Operator
Heather Justice, Lab/Pretreatment Supervisor
Mike McKinney, Maintenance Technician
Plant Operators

DENIUDWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO020621
Facility Information
Applicant/Facility ame:
I own of Boone — Boone WWTP
ApplicantAddress:
P.O. Drawer 192, Boone, NC 28607
FacilityAddress:
201 Casey Lane, Boone, NC 28607
crnuttec Flow
,
ype of Waste:
o Doinestic
8 % Industrial
aci ny ermnStatus:
ClassIV/Active; Renewal
Comity:
Watauga Coonty
Miscellaneous
Receiving tream:
South Fork New
River
Regional off -ice:
mston- aem
tream ass[ [cation:
tatc rtQuad:
oone.
c iste
o
Perron Writer
Natalie Sierra
u asin:
5- -
ate:
30Septernber00
Drainage Area (rni ):
32.7
o,
I„at. 36° 12 54' N Long. 810 38' 10" W
ummer c s
Winter c s :
c s
.3
Average Flow c s :
2.39
o
o
BACKGROUND
At the time of the last permit renewal, the Town of Boone WWTP was planning a plant
expansion and upgrade. The facility was under SOC from the commencement of construction in
1996 until August of 1998, at which time construction was complete. This construction not only
expanded the plant's capacity from 3.2 to 4.82 MGD, but also added tertiary treatment for high
levels of nutrient removal. Since completion of the construction, the facility has been in
compliance and has been achieving a high level of treatment. Treatment of solids involves
aerobic digesters, a belt press and drying beds; the sludge is processed such that it can be sold to
the public as Class A fertilizer.
The Boone WWTP has a full LTMP with the Pretreatment unit, which handles waste flow firom 2
S1Us.
Instream Monitoring and Verification of Existing Conditions and DMR Data Review.
DMRs dating from the completion of the plant upgrade (July 1998) to present were reviewed in
the development of this permit. The Boone WWTP was under SOC during its facility upgrade
until August of 1998. DMR data from that time onward shows low levels of BOD and NH3.
The facility monitors an array of metals due to the complex waste stream. Reasonable potential
was performed for these as well as chromium, nickel, molybdenum, and selenium, which are
monitored through the pretreatment program.
Results of Reasonable Potential Analysis (RPA):
A reasonable potential analysis (RPA) was performed for all monitored parameters.
Because the South Fork New River is designated an Outstanding Resource Water (ORW), half
the value of the state standard was used in the calculations. It was determined that there is
reasonable potential for pollution from the following:
C Silver
a Mercury
Fact Shcet
NPDES NCO020621 Renewal
Pagc I

• Zinc
• Copper
• Cyanide
• Selenium
No reasonable potential exists for the following:
• Lead
• Chromium
• Nickel
• Molybdenum
• Cadmium
Limits exist in the permit for cadmium, lead, cyanide and mercury. Based on the RPA
results, the lead limit will be eliminated, since the facility currently monitors for lead on a
quarterly basis through the LTMP. The same holds true for cadmium. A permit limit
will be added for selenium. The IWC calculation for mercury indicates tan allowable
concentration below the permit limit. The mercury limit has been changed to reflect this
calculation. New limits have also been placed in the permit for cyanide.
Correspondence: The inspection reports reveal a well -run facility with few problems.
PERMITTING STRATEGY
Waste Load Allocation (WLA). The Division prepared the last WLA in 1996. The previous
and current effluent limits were based on guidelines and water quality standards. Selenium was
detected in the plant effluent, and a limit of 5.7 ug/L has been added accordingly. The mercury
limit was changed and all limited parameters were assigned weekly averages and daily
maximums based upon one half the state standard, as per 02B.0225.
SUMMARY OF PROPOSED CHANGES
Two limits are being added to this permit as a result of the reasonable potential analysis.
A weekly average limit of 5.7 ug/L and a daily maximum limit of 22 ug/L have been
added for cyanide. A daily maximum limit of 20 ug/L and a weekly average of 5.7 ug/L
have been added for selenium. The mercury limit ahs been changed to reflect the
instream waste concentration. The new mercury limit is 0.014 ug/L (changed from 0.04
ug/L). The limits for lead and cadmium have been eliminated and will now be monitored
through the Pretreatment LTMP. All other monitoring requirements and limits from the
previous permit will hold (based upon upgraded flow effluent limits page).
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
October 18, 2000
December 4, 2000
If you have questions regarding_any`f the above information or on the attached permit, please contact
Natalie Sierra
✓a((/9;1'9) 7" 5083 ext. 551.
NAME: // ) I DATE:
It'll
Fact Sheet
NMES NCO020621 Renewal
Page 2

Prepared by: Natalie Sierra, 9/29/00
Facility Name =
NPDES # =
Qw (MGD) =
Qw (cfs) =
7Q10s (cfs)=
I WC (%) =
Town of Boone WVVrP
NCO020621
4.82
7.457504
9.5
44.02
Parameter
Chronic CCC w/s7Q10 dil.
FINAL RESULTS, ug/I
Acute CMG w/no dil.
FINAL RESULTS, ug/I
Frequency of Uetection
#Samples # Detects
Cadmium
Max. Pred Cw
1.9
Allowable Cw
2.3
15
50
4
Lead
Max. Pred Cw
6.3
Allowable Cw
28.4
34
50
11
Copper (A.L.)
Max. Pred Cw
Allowable Cw
"„
8.0 z' t a1f'
,...._..
7.3
50
49
Silver (A.L.)
Max. Pred Cw
3.0
Allowable Cw
" "
0.1 r'
1.2
50
4
Zinc (A.L.)
Max. Pred Cw
400.6
Allowable Cw
a' ;•'n
56.8 "'i
67,E "".
50
50
Cyanide
Max. Pred Cw
30.0
Allowable Cw
,,. r :
5.7 =" `: .`". "
22
50
13
Mercury
Max. Pred Cvt
411,; •
0 5
Allowable Cw
,
0 014 v
NA
50
1
Iron
Max. Pred Cw
2.6
Allowable Cw
NA
NA
50
49
Chromium
Max. Pred Cw
56.4
Allowable Cw
56.8
1022
16
4
Nickel
Max. Pred Cw
12.9
Allowable Cw
99.9
261
13
3
Molybdenum
Max. Pred Cw
17.3
Allowable Cw
NA
NA
10
1
Selenium
Max. Pred Cw
' ?,
;5611 0 '� H
All Cw
, �'5 7,,,' , __�,
20
11
1

raramerer =
Standard =
Dataset=
Modified Data
Nondetects RESULTS
0.5
<1.0 Std Dev.
0.234
0.5
<1.0 Mean
0.366
0.5
<1.0 C.V.
0.638
-�
.J
Sample#
50.0
0.5
<1.0
0.5
<1.0 Mult Factor =
1.8 00
11
Max. Value
1.000 pg/I
0.5
<1.0 Max. Pred Cw
1.860 pg/I
0.25
<0.5 Allowable Cw
2.272 pg/I
0.25
<0.5
0.25
<0.5
0.25
<0.5
0.25
<0.5
1
<2.0
1
<2.0
0.25
<0.5
1
<2.0
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
raramerer =
Standard =
Dataset=
Modified Data
Nondetects RESULTS
1
<2.0 Std Dev.
0.803
1
<2.0 Mean
1.102
1
<2.0 C.V.
0.729
1
<2.0 Sample#
50.0
1
<2.0
1
<2.0 Mult Factor =
F 1.860
1
<2.0 Max. Value
3.400 pg/I
1
<2.0 Max. Pred Cw
6.324 pg/I
Allowable Cw
28.39 pg/I
2.5
<5.0
0.5
<1.0
2.5
<5.0
2.5 <5.0
2.5 <5.0
2.5 <5.0
2.5 <5.0
1.25 <2.5
0.5 <1.0
0.5 <1.0
1.5
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.25 <0.50
29
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
_11
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0
0.5 <1.0

-aramerer =
Standard =
Dataset=
Modified Data
(12/99-8/99)
Nondetects RESULTS
Std Dev.
5.866
Mean
16.080
C. V
0 365
Sample#
50.0
Mult Factor = 1.430
Max. Value 37.000 pg/I
Max. Pred Cw 52.910 pg/I
Allowable Cw 7.951 pg/I
5 <10.0
-aramerer =
Standard =
Dataset=
Modified Data
Nondetects RESULTS
1.5
<3.0 Std Dev.
0.333
1.5
<3.0 Mean
0.409
0.25
<0.5 C.V.
0.815
0.25
<0.5 Sample#
50.0
0.25
<0.5
0.25
<0.5 Mult Factor =
2.020
0.25
<0.5 Max. Value
1.500 pg/I
1
<2.0 Max. Pred Cw
3.030 pg/I
0.25
<0.5 Allowable Cw
0.068 pg/I
0.25
<0.5
0.25
<0 5
1
<2.0
0.25
<0.5
1
<2.0
1
<2.0
0.25
<0.5
1
<2.0
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.50
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.5
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50
0.25 <0.50

-aramerer= 14inc(A.L.)
Standard = 1 25 1 pg/I
Dataset= DMR99 (12/99-11/99)
Modified Data Nondetects RESULTS
Std Dev.
Mean
C.V.
Sample#
33,521
58.940
0.569
50.000
Mult Factor =
F 1.67
Max. Value
240.00 pg/I j
Max. Pred Cw
400.56 pg/I
Allowable Cw
56.79 pg/I
raramerer= �yaniae
Standard = 2.5 pg/I
Dataset= DMR99
Modified Data Nondetects RESULTS
2.5
<5.0 Std Dev.
2,612
2.5
<5.0 Mean
2,476
C.V.
1.055
2.5
<5.0 Sample#
50.000
2.5
<5.0
2.5
<5.0 Mult Factor =
F2.310
2.5
<5.0 Max. Value
13.000 pg/I
2.5
<5.0 Max. Pred Cw 30.030 pg/I
1
<2.0 Allowable Cw
5,679 pg/I
1
<2.0
1
<2.0
1
<2.0
1
<2.0
1
<2.0
1
<2.0
1
<2.0
1
<2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
1 <2.0
61
1 <2.0
<2.0
6
2
1 <2.0
9
1 <2.0
1 <2.0

,aramerer= mercury
Standard = C
Dataset= DMR99
Modified Data
Nondetects RESULTS
0.1
<0.2 Std Dev.
0.040
0.1
<0.2 Mean
0.106
0.1
<0.2 C.V.
0.375
0.1
<0.2 Sample#
50.0
0.1
<0.2
0.1
<0.2 Molt Factor =
F1 375
0.1
<0.2 Max. Value
0.380 pg/I
0.1
<0.2 Max. Pred Cw
0,523 pg/I
0.1
<0.2 Allowable Cw
0.014 pg/I
0 38
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.20
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.2
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
0.1
<0.20
aramerer =
Standard =
Dataset=
Modified Data
Nondetects RESULTS
13
Std Dev.
0.180
0.015
<0.03 Mean
0.119
0.1
C.V.
1.509
0:1
Sample#
50.0
0:05
i0.,07
MultFactor=
2.009
0:07
Max. Value
1.300 pg/I
0:2
Max. Pred Cw
2.612 pg/I
0.07
Allowable Cw
0.000 pg/I
0'04
DA
O:Oe
0.1
0.`1
0.1
0.1
0.07
0.1
0.14
0.12
0:16
OA

Parameter= IChromium
Standard = I2
Dataset= DMR99
ModifiedData
1
1
1
1.25
1.25
1
1.25
1.25
1
1
2.2
2.6
2
11
1
1
Nondetects RESULTS
<2 Std Dev.
2.471
<2 Mean
1.925
<2 C.V.
1.283
<2.5 Sample#
16.0
<2.5
<2 Mult Factor =
5.13
<0.0025 Max. Value
11.00 pg/I
<0.0025 Max. Pred Cw
56.43 pg/I
<2 Allowable Cw
56.79 pg/I
<2
<2
<2
Parameter= INickel
Standard = 44 pg/I
Dataset= DMR99 12/99-4/99
ModifiedData Nondetects RESULTS
5 <10
Std Dev.
2.187
5 <10
Mean
3.849
5 <10
C.V.
0.568
0.011
1
Sample#
13.0
5 <10
5 <10
Mult Factor =
2.57
5 <10
Max. Value
5.00
5 <10
Max. Pred Cw
12.85
5 <10
Allowable Cw
99.95
5 <10
5 <10
1 0.015 1

Parameter= MolY bdenum Parameter= ISelenium
Standard = I pg/I Standard = I 2.5 pg/I
Dataset= DMR99 I Dataset= DMR99
ModifiedData Nondetects
RESULTS
ModifiedData
Nondetects
RESULTS
5 <10
Std Dev.
1.771
50
<100
Std Dev.
14.231
5 <10
Mean
4.950
5
<10
Mean
7.209
5 <10
C.V.
0.358
5
<10
C.V.
1.974
5 <10
Sample#
10.0
2.5
<5
Sample#
11.0
1 <2
2.5
<5
5 <10
Mutt Factor =
2.030
2.5
<5
Mutt Factor =
11.220
5 <10
Max. Value
8.500 pg/I
2.5
<5
Max. Value
50.0 pg/I
5 <10
Max. Pred Cw
17.255 pg/I
2.5
<5
Max. Pred Cw.
561.0 pg/I
5 <10
Allowable Cw
0.0 pg/I
2.5
<5
Allowable Cw
5.679 pg/I
8.5
1.8
2.5
<5

IWC Calculations
Boone WWTP
NC0020621
Prepared By: Natalie Sierra, NPDES Unit
Enter Design Flow (MGD): 4.82
Enter s7Q10(cfs): 9.5
Enter w7Q10 (cfs): 14
Residual Chlorine
Ammonia (NH3 as N)
(summer)
7Q10 (CFS)
9.5
7Q10 (CFS)
9.5
DESIGN FLOW (MGD)
4.82
DESIGN FLOW (MGD)
4.82
DESIGN FLOW (CFS)
7.471
DESIGN FLOW (CFS)
7.471
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVEL (U
0
UPS BACKGROUND LEVEL
0.22
IWC (%)
44.02
WC (%)
44.02
Allowable Conc. (ug/1)
39
Allowable Conc. (mg/1)
2.0
Ammonia (NH3 as N)
(winter)
7Q10 (CFS) 14
Fecal Limit 200/100ml DESIGN FLOW (MGD) 4.82
(If DF >331, Monitor) DESIGN FLOW (CFS) 7.471
(If DF <331, Limit) STREAM STD (MG/L) 1.8
Dilution Factor (DF) 2.27 UPS BACKGROUND LEVEL 0.22
IWC (%) 34.80
Allowable Conc. (mg/1) 4.8
NPDES Servor/Current Versions/IWC
9/29/00

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fN/P ;ffi 5107
NPDES/Non-Discharge Permitting Unit Pretreatment Information Request Form
IDES OR NONDISCHARGE PERMITTING UNIT COMPLETES THIS PART:
Date of Request 9/26/00
Facility
Town of Boone W WTP
Permit #
NCO020621
Region
Winston-Salem
Requestor
Natalie Sierra, NPDES Unit(ext 551)
Pretreatment AD Towns- Keyes McGee (ext. 580)
Contact E-L Towns- Vacant Position
M-R Towns- Dana Folley (ext. 523)
S-Z Towns- Steve Antigone (ext 592)
Ce—lle) 4�Ief,
q/27/00 t-t) l eyue5f
L r OY9 P197A . IJ
l;'ec, I-V -4 L Tm P -De,-i a v/zS/oo
51-I,It _'D /yPPF_5i%Yll,4 l /o0 V.aewa
PRETREATMENT UNIT COMPLETES THIS PART:
Status of Pretreatment Program (circle all that apply)
1) the facility has no SIU's and does have a Division approved Pretreatment Program that SINACTIVE
2) the facility has no SIU's and does not have a Division approved Pretreatment Program
3 the facility has or is deve ing) a Pretreatment Program
2a) is Full Program with LTMP . or 2b) is Modified Program with STMP
e�iaclli y evelop a Pretreatment Program - Full Modified
5) additional conditions regarding Pretreatment attached or listed below
Flow
Permitted Actual STMP time frame:
`, f S most recent
�nextcycle_
% Industrial
5,1 q r
Domestic
?5.52
L
Pollutant
Poe due to
flc.s5
T
Check List
M
NPDES/Non-
A
STMP
LTMP
Discharge
Required
Required by
Frequency at
Frequency at
P
Permit Limit
by EPA'
503 Sludge"
POC due to SIU"'
Site specific Poe (Provide Explanation)""
effluent
off luent
BOD
/
4
M
TSS
4
M
NH3
4
M
Arsenic
✓
t)t
4
M
Cadmium
/
✓
4
M
Chromium
/
4
M
Copper
v
4
M
Cyanide
4
M
Lead
/
✓
4
M
Mercury
✓
✓
4
Q
Molybdemum
✓
a5 Oar
4
Q
M
Nickel
/
U
4
Q
M
Silver
4
M
Selenium
I
04d 1ts li
4
Q
M
Zinc
V
4
to
✓
4
M
To+G I tJ
/
4
Q
p+al
4
Q
M
�° Su 5
✓
4
QM
4
Q
M
4
Q
'Always in the LTMP
"Only in the LTMP it the POTW land applies sludge
"' Only in LTMP while the
SIU is connected to the POTW
"" Only in LTMP when the pollutant is a specific concern to the POTW (ie-Chloride to a POTW who accepts Textile waste)
O=Quarterly A - Anvt aclty
I
M=Monthly
Comments:
j r� -9 Limed f� -D V1 `Z s
R/fir; I
a + �r '4q a./I +L, �
( 'i o I`'49 tiara Zr 7
'f — a
u l"V — 5/
G
467--J Pe , fte low = 4.82 e %{leof S u al Q.2S016D
I
BooneTMPrequestxls
Revised: August 4, 2000

cc: Permits and Engineering
Technical Support Branch
County Health Department
Central Files
WSRO
SOC PRIORITY PROJECT: YES X NO _
IF Yes, SOC No.94-08 ADI
To: Permits and Engineering Unit
Water Quality Section
Attention: (Bob Teutingg)
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT REPORT AND RECOMMENDATIONS
Date: May 7, 1996
County: Watauga
Permit No. NC: 0020621
PART I GENERAL INFORMATION
1. Facility Name and Current Address: Town of Boone WWTP
P.O. Drawer 192
Boone, NC 28607
2. Date of most recent NPDES Staff Report: (attach copy) January 24, 1996
3. Changes since previous action on NPDES Permit: None
4. Verify Discharge Point(s) on plans with current NPDES Permit. List for all discharge
points.
Latitude: 36' 12' 54" Longitude: 810 38' 10"
U.S.G.S. Quad No. -1C 2NW U.S.G.S. Quad Name Boone
Attach a USGS map extract and indicate treatment facility site and discharge point on
map.
U.S.G.S. Quad No. -12NW U.S.G.S. Quad Name Boone

5. Treatment plant classification: (attach completed rating sheet) IV
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
(PROVIDE THE FOLLOWING INFORMATION IF IT IS NOT ON THE PREVIOUS NPDES
STAFF REPORT) See previous staff report
PART III - EVALUATION AND RECOMMENDATIONS
Recommendation is made to issue the authorization to construct in accordance with division
policy.
/LY/WA4--1
Signature of report preparer
Water Quality Supervisor
Date

cc: Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: X Yes No
If Yes, SOC No. SOC awaiting signature
To: Permits and Engineering Unit
Water Quality Section
Attention: Jeanette Powell
Date: January 24, 1996
NPDES STAFF REPORT AND RECOMMENDATION
MODIFICATION TO LAST APPLICATION REQUEST
County Watauga
Permit No. NCO020621
PART I - GENERAL INFORMATION
1. Facility and Address: Town of Boone WWTP
P.O. Drawer 192
Boone, NC 28607
2. Date of Investigation: January 23, 1996
3. Report Prepared by: Beth Morton
4. Persons Contacted and Telephone Number: Oscar Hodges
(704)2624580
5. Directions to Site: Take 421 North towards Boone. Turn left onto Charlie Hollar Road. Follow signs
to the WWTP.
6. Discharge Points(s), List for all discharge points:
Latitude: 36* 12' 54" Longitude: 81 * 38' 10"
U.S.G.S. Quad No. CC-1� U.S.G.S. Quad Name Boone
7. Site size and expansion area consistent with application? X Yes No If No, explain:
8. Topography (relationship to flood plain included): The South Fork New River often floods the
entrance to the treatment plant. To my knowledge the plant itself has not been under water due to
flooding.
9. Location of nearest dwelling: > 1000 Ft
10. Receiving stream or affected surface waters: South Fork of the New River
a. Classification C Tr
b. River Basin and Subbasin No.: New River Basin 05 07 01

NPDES Staff Report
January 24, 1996
Page 2
C. Describe receiving stream features and pertinent downstream uses: The river supports fish and
wildlife.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
a. Volume of Wastewater to be permitted: 4.82 million gallons per day (MGD) (Ultimate Design
Capacity) with a peak flow of 12.05 mgd.
b. What is the current permitted capacity of the Waste Water Treatment facility? 3.2 MGD.
C. Actual treatment capacity of the current facility (current design capacity)? 3.2 MGD.
d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in
the previous two years. On July 28, 1994, an authorization to construct a course bubble
diffused aeration system and floating decanters in the digesters was issued.
e. Please provide a description of existing or substantially constructed wastewater treatment
facilities; The facility consists of dual bar screens (one mechanical, one manual), influent lift
station, dual primary clarifiers, dual trickling filters, recirculation lift station, dual secondary
clarifiers, chlorination and dechlorination chamber, dual aerobic digesters, drying beds, and
covered drying beds.
f. Please provide a description of proposed wastewater treatment facilities. Mechanical bar
screen, parshall flume and flow measurement, 3 new influent pumps, wet well addition,
aerated grit and grease removal, primary clarifiers conversion to flow equalization basins, two
oxidation ditches sharing a common wall, two secondary clarifiers, deep bed tertiary filtration,
UV disinfection, belt presses, and sludge dryer.
g. Possible toxic impacts to surface waters: None known.
h. Pretreatment Program (POTWs only):
in development _ approved X
should be required _ not needed _
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM Permit No. W00005757.
Residuals Contractor Advanced Waste Management Services. Inc.
Telephone No. [phone]
b. Residuals stabilization: PSRP CX PFRP X Other
C. Landfill: NA
d. Other disposal/utilization scheme (Specify): None.
3. Treatment plant classification (attach completed rating sheet). IV

NPDES Staff Report
January 24, 1996
Page 3
SIC Code(s): 4952
Primary 01 Secondary 59 (IRC makes electrical components -resistors)
Main Treatment Unit Code: 10 10 _ 3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies involved.
(municipals only)? Yes
2. Special monitoring or limitations (including toxicity) requests: None.
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate)
An SOC is awaiting signature.
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available.
Please provide regional perspective for each option evaluated.
Spray Irrigation: Yes. Topographical and geological nature of land in the area makes this option
infeasible.
Connection to Regional Sewer System: NA
Subsurface: Geological nature of land makes this option infeasible.
Other disposal options: Constructed wetlands was impossible due to lack of available land which
would be appropriate for the system.
5. Other Special Items: None.
PART IV - EVALUATION AND RECOMMENDATIONS
The main difference between this application and the last one is the flow has been reduced from 5mgd
(Peak of 12.5 mgd) to 4.82 mgd (Peak of 12.05 mgd). This plant experiences high flows on a regular basis.
There is concern that the automated mechanical bar screen can not handle the high flow situations. I discussed
this problem with Dwight Lancaster, who recommended that bubbler control devices be installed to divert flow
from the automated mechanical bar screen to the manual screen to equalize flow and to improve screening
efficiency during high flow situations. Also, the plant appears to have no ability to automatically chlorinate the
return line to the oxidation ditch. This type of chlorination may have to be manual if no lines are installed and
bulking occurs in the oxidation ditch.
Recommendation is made to issue this permit.
V
Signature of a ort preparer
Water Quality Regional Su rvisor
% Z '�L -96
Date

Town of Boone
May 18, 2000
Ms. Christie R. Jackson
NCDENR Water Quality Division
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Renewal Application
NPDES Permit No. NCO020621
Town of Boone, North Carolina
Dear Ms. Jackson:
I I I I I I
MAY 2 2 2000
DENR - WATER DUALITY
POINT SOURCE BRANCH
The Town of Boone hereby requests renewal of its NPDES permit for the wastewater treatment
plant, currently set to expire on November 30, 2000.
Enclosed are the completed, signed application forms and the required location map, facility line
drawing, and narrative description of the treatment process and sludge management plan.
There have been no changes to the plant process since issuance of the last permit.
If you have any questions about this package, please feel free to call me at the plant at (828) 262-
4580.
Sincerely,
G rge M. Sudderth,111
Director of Public Utilities
iL0
P.O. DRAWER 192 • BOONE, NORTH CAROLINA 28607 w•b *•-.=b ••+

' . NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows A MCD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section IN for each Signitycant Industrial User.
t. sign tw kwbsmal user M f//%/1 if
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quaky of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50.OW gallons or more per average workday:
• has a flow greater Nan 5 percent of the total tow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
I may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more conhibnding industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name ofSlu U)N-'AUGA C6,WT4 IYII:DICAL CENTER
streettaddress 3 3� D ee p& I j 7RA
41Q60r,e- Cunty Q NA'A kG ACity
State f" C Zip Code erg 6 o q
Telephone Number
Fax Number
e-mail address P/uAinfenaNee ti) INM6, mrq
2. Primary Product or Raw Material
Speedy edler the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by drat industry.
Product
Raw Material
Qua
Units
3. Flow
Indicate the volume d water discharged into the POTW and whether this discharge is Intermittent or continuous
D.055 MGD ❑ Intermittent 0 Comimrous
4of4

Item 6: Facility Description
Present Ooeratina Status
The plant is a tertiary treatment facility with a design capacity of 4.82 MGD. Average daily
volume for the period from March 1999 to April 2000 was 2.39 MGD.
Vulcan automatic mechanical bar screens remove coarse screenings, then convey the water to an
influent pump station housing three 5500 gpm Flyght submersible pumps. Water is pumped to
the highest elevation in the plant to a GH Systems aerated grit/grease removal unit where grit
settles in a trough supplied with coarse air and grease is skimmed from a parallel trough to a
grease trap. The grit, grease, and bar screenings are hauled to a landfill in Caldwell County for
disposal.
Wastewater then flows to one of two oxidation ditches, each with a capacity of 2.4 MG.
Hoffman centrifugal blowers supply air through 2200 fine bubble diffusers anchored to the basin
floor. The basins are divided into four quadrants, and vertical mixing is achieved by coarse air
channels between quadrants that lift the water from the bottom of one section to the top of the
next chamber. This is a relatively new design that prevents dead zones and laminar flow in
basins too deep for surface mounted brush aerators. The ditches are capable of complete
nitrification due to their large size and zonation.
Ditch effluent enters two circular 0.9 MG clarifiers with lift piping and centerwell draft tubes for
return of activated sludge via Crown centrifugal pumps. Pinch valves regulated by inline
magnetic flow meters control the return and waste pumping rates. Clarifier effluent suspended
solids range from 4-8 mg/L.
Clarifier effluent undergoes tertiary treatment through four Leopold deep -bed sand filters, where
effluent suspended solids are further reduced to 0.3-1.5 mg/L.
Disinfection is accomplished by a Trojan UV4000 ultraviolet system featuring two separately
powered, self-cleaning, flow paced banks of 16 lamps (2800 watts each).
In the final step, the effluent flows down a cascade aeration structure for further oxygenation
before discharge to the South Fork of the New River.
Solids are wasted to two aerobic digesters holding 430,000 gallons each. They are de -watered
after 3-5 days of digestion by an Eimco 2-meter belt press to a 15%-18% cake, then dried to
86%-92% solids in an Atlas-Stord TST-40 thermal drier. A steam generator powered by propane
heats the drier.
The final biosolids product is a high quality Class A fertilizer containing approximately 60/0
nitrogen, and 5% phosphorous. The material is sold to the public for use on Christmas trees,
pasture and meadowland, and nursery crops. Annual production is 500-550 tons.

"#I
Potential Facility Changes (5-year)
Due to the recent construction improvements for which the last NPDES permit was issued, we do
not anticipate any major projects for expansion or repairs at the plant for the next five years.
Schematic of Wastewater Flow
Included in this package are the following drawings for describing the plant flow path:
1)
Site plan
2)
Piping plan
3)
Process schematic
4)
Hydraulic profile
The site plan drawing includes arrows for indicating the flow path through the facility.
Location Map
The USGS Boone Quadrangle topographic map is attached showing the location of the plant.
Narrative Description of Sludge Management Plan
The plant removes 3,500-5,000 lbs of solids from the influent treatment process daily in the form
of waste activated sludge with total solids of 6,000-8,500 mg/L. This material is aerobically
digested for 5-7 days, then de -watered on an Eimco 2-meter belt press to a solids level of 15%-
18%. The cake sludge is then dried to 88%-921/o in a Stord TST40 thermal drier. The drier is
heated by steam produced by a propane -fired steam generator manufactured by Clayton
Industries. Biosolids production is approximately 6001bs. per hour or 500 tons per year.
With the above treatment, the product meets and exceeds Vector Attraction Reduction method
7 (% solids > 75%) and Alternative 5, Item g of the Processes to Further Reduce Pathogens
(PFRP) for Class A biosolids. The material is sold in bulk to the public for use as fertilizer on
pastures, meadows, Christmas trees, and in landscaping. The product is registered with North
Carolina Department of Agriculture with a guaranteed N-P-K analysis of 5-5-0.
An information sheet distributed to recipients of Class A residuals is included in this application.
The plant has a backup Class B residuals permit that would be used if the Class A system was
unavailable for an extended period. In the past three years, no Class B material has been
produced, and we do not anticipate any processing in the future.

Town of Boone Wastewater Treatment Plant
Sludge Management Plan
A. Operating Authority
The plant's program operates under the authority of Class A Wastewater
Residuals Permit No. WO0013263. The permit allows for the processing and
distribution of up to 1,250 dry tons of residuals per year.
B. Process Description
The plant removes 3,500-5,000 pounds of solids (dry wt.) from the influent
treatment process daily in the form of waste activated sludge with total solids of
6,000-8,500 mg/L. This material is aerobically digested for 5-7 days, then de -
watered on an Eimco 2-meter belt press to a solids level of 15%-18%. The cake
sludge is then dried to 88%-92% in a Stord TST-40 thermal drier. The drier is
heated by steam produced by a propane -fired steam generator manufactured by
Clayton Industries. Biosolids production is approximately 6001bs/hr or 500 tons
per year.
With the above treatment, the product meets and exceeds the EPA Vector
Attraction Reduction method 7 (% solids > 75%) and Alternative 5, Item g of the
EPA Processes to Further Reduce Pathogens (PFRP) for Class A biosolids.
C. Quality Controls
The plant shall follow a detailed schedule of data recording, process checks and
maintenance to ensure that residuals produced are in accordance with permit
requirements and equipment is operating at design efficiencies. These shall
include but are not limited to:
1. Recording of digester sludge removal volumes, belt press cake
solids, drier inlet and outlet temperature, drier detention times, and
final residuals volume;
2. Regular operator equipment checks during process runs;
Adherence to detailed preventive maintenance task schedules.
D. Sampling
The material shall be sampled quarterly for nutrients and metals as indicated on
the residuals permit. An annual TCLP shall be performed for detection of
pesticides and volatile compounds.

..'
E. Marketing and Distribution
All dried residuals shall be stored under shelter on a concrete pad until
distribution.
The material shall be sold in bulk to the public for use as a fertilizer in
landscaping and on pastures, meadows, Christmas trees and other ornamentals.
The product shall be registered with the North Carolina Department of
Agriculture with a guaranteed N-P-K analysis of 5-5-0. It shall be the continuing
goal of the Town of Boone to pursue other bulk markets for residuals wherever
possible.
An information sheet shall be distributed to each recipient of residuals. The
information sheet shall indicate the proper application rates as well as any rules
issued by the EPA and the State of North Carolina which must be followed. Each
recipient shall sign the information sheet acknowledging that they understand all
precautions and intended uses of the residuals. The plant shall retain the original,
and a copy shall be given to the recipient.
F. Reporting
An annual report shall be prepared and submitted each year to the EPA and the
State of North Carolina as required by the permit. This report shall provide
details of the process, testing, and distribution activities of the program for each
calendar year.
Biosolids Management Plan
03/01/00

HIGH COUNTRY 5-5-0
Organic Fertilizer and Soil Builder
Produced by the
Town of Boone
P.O. Drawer 192, Boone, NC 28607
[phone]
High Country 5-54) (HC MO) is a slow release fertilizer produced by the Town of Boone Wastewater Treatment Facility. This 100%
natural, organic product provides slow release feeding and does not require watering. HC 550 is intended for use on lawns, gardens,
flowers, shrubbery, landscaping and sod crops.
GUARANTEED ANALYSIS
Total Nitrogen......................................................
5 %
Water Insoluble Nitrogen..._ ..........................................
3.5 %
Available Phosphoric Acid .......................................
5 %
Soluble Potash ......................................................
0 %
Iron...................................................................
1 %
RECOMMENDED APPLICATION RATES
Lawn -Sod Establishment: Apply HC 550 at a rate of 40 Ibs per 1000 square feet at the time of planting
Turf Maintenance: Apply HC 550 at a rate of 15-20 lbs per 1000 square feet every 3-4 months
Plant Bed Establishment: Apply HC 550 at a rate of 3 Ibs per 100 square feet. then nix into soil
Planting Bed Maintenance: Apply HC MO at a rate of 2 Ibs per 100 square feet in the Spring and Fall
WARNINGS: HC MO is em-ironmentaliv safe if used as directed. However. it can become a hazard if mismanaged. This product
should not be used on soils intended for the production of food crops. This product should not be used as a starting nnedium for
germinating seeds other than gasses. HC 550 must be covered with a tarp or plastic during transport. HC 550 should be stored in a
dry area awav from surface water, wells, or other water supplies. HC 550 should be stored awav from plav areas for children, where
pets many wander, or where it may be washed into streams.
LIMITED WARRANTY AND DISCLAIMER: The Town of Boone warrants that HC 550 meets the specifications
stated above, and that the heavv metals content is less than or equal to the limitations specified in the NC Department of
Environment and Natural Resources sludge quality criteria for land application. There are no warranties, express or
implied, that extend beyond the description contained herein. Specifically, there are no warranties of merchantability or
fitness for a particular purpose. If HC 550 fails to meet its specifications, the Buyer's sole remedy shall be the recovery of
the purchase price. Under no circumstances shall the Town of Boone be liable for any other damages, including direct,
indirect, consequential or special damages.
ACKNOWLEDGEMENT: The undersigned Buyer acknowledges that he/she has read this brochure and is familiar with its
contents. The undersigned Buyer agrees to abide by the following Restrictions:
I. HC 550 shall not be applied to land except in accordance with the instructions contained herein.
2. HC 550 shall not be applied to any site that is flooded. frozen, or snow-covered.
3. HC 550 shall not applied within 2O feet of anv water supply, stream, river or lake.
d. Adequate measures shall be provided to prevent surface runoff from cam ing this product into any surface waters.
Buyer Signature
Name (Print):
Street/Route:
Citv/State?Zip:
Telephone:
Date
Quantity: Ibs/tons
Intended Use:
Amount Collected:
Loaded By: