NC0082546_Permit (Issuance)_20100412

NPDES DOCUHENT SCANNING COVER SHEET
NPDES Permit:
NC0082546
Granite Falls
WTP
Document Type: (I
Permit Issuance
+yC'
--rcaacSV�p
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Application
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
April 12, 2010
Whim document is printed on ruse paper - izore any
content on the reirerse side

A"A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
April 12, 2010
M. Shuford Wise, Water Resources Director
Town of Granite Falls WTP
PO Drawer 10
Granite Falls, North Carolina 28630
Subject: Issuance of NPDES Permit
NC0082546
Granite Falls WTP
Caldwell County
Dear Mr. Wise:
Dee Freeman
Secretary
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 October 15, 2007 (or as subsequently amended).
Per your letter request of February 10, 2010, this final permit contains the following changes from the Draft
permit mailed to you on February 3, 2010.
1. The Quarterly Chronic Whole Effluent Toxicity monitoring at 90% IWC has been changed to Quarterly Acute Toxicity at 90%
IWC.
2. The .050 GPD plant description in the "Supplement to Permit Sheet" has been changed to read "Continue to operate a 2.5
MGD conventional water treatment plant..."
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 150E 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 Bob Guerra at telephone number (919)
807-6387 or email at (bob.Querra(ncdenr.c1ov).
Sincerely,
oleen H.
of
Enclosure: NPDES Permit NC0082546
cc: Asheville Regional Office / Surface Water Protection) — Roger Edwards
Aquatic Toxicology Unit Susan. [e-mail]
NPDES Unit
Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity t Affirmative Action Employer
NorthCarolina
Naturally

Permit NC0082546
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended, the
Town of Granite Falls
is hereby authorized to discharge wastewater from a facility located at the
Granite Falls WTP
100 Lakeside Avenue
Caldwell County
to receiving waters designated as Lake Rhodhiss (the Catawba River) in the Catawba 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 May 1, 2010.
This permit and authorization to discharge shall expire at midnight on February 28, 2015.
Signed this day April 12, 2010
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit .NC0082546
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under
the permit conditions, requirements, terms, and provisions included herein.
The Town of Granite Falls is hereby authorized to:
1. Continue to operate a 2.5 MGD conventional drinking water treatment plant treating
surface water utilizing two (2) raw water intakes from Lake Rhodhiss (Catawba River) with
a discharge of filter -backwash wastewater. The facility consists of the following
components:
a) Primary pump station with two (2)1,800 gpm pumps
b) Backup.pump station with two (2)1,100 gpm pumps
c) Flash mixer (10 x 10 x 12)
d} Flocculators (3) 16 x 16)
e) Sedimentation basins six (6)
f) Clear wells (3) 30,000 — 200,000 — 500,000 gallons prior to distribution system
g) Alum Sludge facility (250,000 gallons)
h) Sludge land application
i) Polishing filter (6 x 60)
j) Discharge to Lake Rhodhiss
2. This facility is located at the Granite Falls WTP, 100 Lakeside Avenue, Granite Falls in
Caldwell County.
3. Discharge from said treatment works at the location specified on the attached map into
Lake Rhodhiss (Catawba River), classified WS-IV & B CA waters in the Catawba River
Basin.

Receiving Stream:
Drainage Basin:
35° 47' 11" N State Grid: Granite Falls
81° 27' 29" W Permitted Flow: Unlimited,
Lake Rhodhiss Stream Class: WS-IV& B CA
Catawba River Basin Sub -Basin: 03-08-31
NPDES Permit No. NC0082546
Caldwell County

Permit NC0082546
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge filter backwash from outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily ;
Maximum
Measurement
Frequency
Sample Type
Sample
Location
50050 - Row
Weekly
Instantaneous
Effluent
00530 — Total Suspended
Solids
30 mg/L
45 mg/L
2/Month
Grab
Effluent
00400 - pH
6.0 — 9.0 s.u.
2/Month
Grab
Effluent
50060 - Total Residual
Chlorine
28 pg/L
2/Month
Grab
Effluent
00076 - Turbidity
2/Month
Grab
Effluent
01105 — Total Aluminum2
Quarterly
Grab
Effluent
01042 - Total Copper2
Quarterly
Grab
Effluent
01045 - Total Iron2
Quarterly
Grab
Effluent
01055 — Manganese2
Quarterly
Grab
Effluent
00951 — Fluoride2
Quarterly
Grab
Effluent
TGE6C - Whole Effluent
oxicity Monitoring
Quarterly
Grab
Effluent
Notes:
1. The Division shall consider all effluent TRC values reported below 50 ug/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 ug/L.
2. Parameters should be monitored in conjunction with toxicity test.
3. See Attachment A (2.).
All samples collected should be from a representative discharge event.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.

Permit NC0082546
A. (2). ACUTE TOXICITY MONITORING (QUARTERLY)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled "Pass/Fail Methodology for determining Acute Toxicity
in s Single Effluent Concentration" (Revised -July, 1992 or subsequent versions). The monitoring shall
be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test. The effluent
concentration at which there may be at no time significant acute mortality is 90% (defined as treatment
two in the procedure document). Effluent samples for self -monitoring purposes must be obtained
during representative effluent discharge below all waste treatment. The tests will be performed during
the months of January, April, July and October.
The parameter code for Pimephales promelas is TGE6C. All toxicity testing results required as part of
this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it
was performed, using the appropriate parameter code. Additionally, DWQ Form AT-2 (original) is to
be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center •
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete 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 any month, the pennittee will complete
the information located at the top of the aquatic toxicity (AT) test form indicating the facility name,
permit number, pipe number, county, and the month/year of the report with the notation of "No Flow"
in the comment area of the form. The report shall be submitted to the Environmental Sciences Section
at the address cited above.
Should any test data from either these monitoring requirements or tests performed by the North
Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may
be re -opened and modified to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently than required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT
Form submitted.
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 follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.

itrA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
MEMORANDUM
1'0:
From:
Subject:
February 3, 2010
James Adams
NCDENR / DEH / Regional engineer
Asheville Regional Office
Robert Guerra
NPDES Unit
Review of Draft NPDES Permit NC0082546 Granite Falls WIT Caldwell County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by March 3, 2010. If you
have any questions on the draft permit, please contact me at [phone] or by e-mail at [e-mail].
RESPONSE: (Check one)
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards.
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
Date: Wee9
NorthCarolina
Naturally

Barry Hayes
Mayor
Dr. Caryl B. Burns
Mayor Pro Tem
TOWN OF GRANITE FALLS
Bob Guerra
NPDES Unit, Western Program
NCDENR
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Dear Mr. Guerra:
February 10, 2010
Council Members
Donald Kirkpatrick
Frank Mackie
Michael Mackie
Max McRary
Tracy Townsend
Jerry T. Church
Town Manager
[e-mail]
rE@NOWEN
rFEB 152010
DENR-WATER QUALITY
POINT SOURCE BRANCH
Subject: Comments to Draft NPDES Permit NC0082546
Granite Falls WTP, Caldwell County
Toxicity Modification Request
After a careful review of draft NPDES permit NC0082546 for the Town of Granite Falls Water
Treatment Plant Alum Sludge Facility the following comments and/or requests are submitted for your
consideration.
Comment: Supplement to cover sheet item 1. Correction of rated capacity.
The Town of Granite Falls operates a 2,500,000 GPD conventional water treatment plant.
(Replace 50,000 GPD with 2,500,000 GPD)
Request: Change in proposed monitoring requirement from chronic toxicity to acute toxicity.
The basis of this request is due to the nature of this discharge. The discharge occurs on
different days and times depending on the operational characteristics of the water treatment
plant. Chronic toxicity is usually based on a 24 hour composite sampling procedure with two
sampling events during a weekly period. Discharge flow from the water treatment does not
occur continuously or on a daily basis. At best chronic toxicity sampling would be a grab
sample with a partially created flow.
To gain a more representative sampling of the subject wastewater discharge the Town of
Granite Falls would like to request that whole effluent toxicity monitoring TGP3B (chronic)
be changed to 24 hour acute toxicity testing. The Town of Granite Falls would also like to
request that the 24 hour acute monitoring be incorporated in the final NPDES renewal for this
facility.
P.O. Drawer 10 • Granite Falls, North Carolina 28630-0010 • Phone [phone] • Fax [phone]
www.granitefallsnc.com

2
The Town of Granite Falls appreciates your consideration concerning this permit application.
If I can offer additional information or answer any questions concerning this matter please feel free
to contact me at [phone] or by e-mail at ([e-mail]).
Sincerely;
M. Shuford Wise, Water Resources Director
Town of Granite Falls
cc:
Water Resource File

North Carolina ) ss
Mecklenburg County)
The Charlotte Observer Publishing Co.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
DINA SPRINKLE
NCDENR/DWQ/POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH NC 27699
REFERENCE: 30063432
6435508 npdes wastewater
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of The Charlotte Observer
Publishing Company, a corporation organized and
doing business under the laws of the State of
Delaware, and publishing a newspaper known as The
Charlotte Observer in the city of Charlotte,
County of Mecklenburg, and State of North Carolina
and that as such he/she is familiar with the
books, records, files, and business of said
Corporation and by reference to the files of said
publication, the attached advertisement was
inserted. The following is correctly copied from
the books and files of the aforesaid Corporation
and Publication.
?UBLISHED ON: 02/07
1D SP CE: 152 LINE
FI ! ON: 02/11/1
NAME
In Testimony Whe
day and year aforesai
IJotar
I have hereunto
TLE:
DATE: F B 1 2 2Qip
set my hand and affixed my seal, the
My Commission Expires May 17, 2011
My Commission Expires: _/_/_
Public. Notice
North Carolina Environmental Management Commission/
NPDES Unit
1617 Mall Service Center • ,
' Raleigh, NC 27699.1617
Notice of Intent to Issue a NPDES Wastewater Permit
The North Carolina -Environmental Management Commission
proposes to issue a NPDES wastewater discharge permit to the
person(s) listed below,
Written comments regarding the proposed permit will be
accepted until 30 days after the publish date of this notice. The
Director of the NC Division of Water Ouali-1y (DWO) may hold a
public hearing should there be a significant degree of public
interest. Please mail comments and/or information requests to
DWQ at the above address. Interested persons may visit the DWG
at 512 N. Salisbuiy Street, Raleigh. NC to review information on
tile. Additional information on NPDES permits and this notice may
be found on our website: www.ncwaterquality.org, or by calling
[phone]. Anson County County Utilities requested modification • of permit
NC007.390 for WTP in Anson Countydhis permitted discharge is
treated filler backwash wastewater to McCoy Creek. Yadkin -Pee
Dee River Basin. ,•
The Town of Biscoe requested renewal o1 permit NC0021504 for
Biscoe WWTP in Montgomery County. This permitted discharge is
treated municipal wastewater to Hickory Branch in the Yadkin -Pee
Dee River Basin.
Equipment & Supply, Inc. requested renewal of permit
NC0087858' for its groundwater remediation WWTP in Union
County: this permitted discharge is treated groundwater to an
unnamed tributary to Stewarts Creek in the Yadkin Pee -Dee River
Basin.
Catawba County Schools requested renewal of permit
NC0086304 for the Mill Creek Middle School WWTP. Facility
discharges to Balls Creek sin the Catawba River Basin. Currently
fecal coliform and total residual chlorine are water quality limited.
Catawba County Schools requestedrenewal of permit
NC0044059 for the Bunker Hill High School. WWTP, Facility
discharges to an unnamed tributary to Lyle Creek in the Catawba
River Basin. Currently BOD, ammonia nitrogen, fecal colform,
dissolved oxygen and total residual chlorine are water quality
limted.'
The NC' Lions Foundation requested renewal of permit
NC0044253 for its Camp Dogwood WWTP in Catawba County.
Facility discharges to the Mountain Creek arm of Lake Norman in
the Catawba River Basin. Currently fecal coliform and total
residual chlorine are water quality limited.
Catawba County- Schools requested renewal of NPDES permit
NC0045438 for Sherritls Ford Elementary School WWTP, Facility
discharges to an unnamed tributary to Mountain Creek in the
Catawba River Basin. Currently fecal coliform, ammonia nitrogen
and total residual chlorine are water quality limited. .
Catawba County Schools requested renewal of NPDES rmit
NC0051608 for the Bandys High School WWTP. f acility
discharges to Battle Run Creek- in the Catawba River Basin.
Currently fecal coliform, ammonia nitrogen and total residual
chlorine are water quality limited. •
The City of Morganton requested renewal of permit NC0060194
for the WTP in Burke County; this permitted discharge is treated
filter backwash wastewater to Catawba River, Catawba River
Basin.
The Town of Granite Falls requested renewal of permit
NC0082546 for the WTP in Caldwell County; this permitted
discharge is treated filter backwash wastewater to Lake Rhodhiss,
Catawba River Basin. Granite Falls WTP in Caldwell County. Tflis
permitted facility. discharges Treated • wastewater to Lake
Rhodhiss/Catawba River.in the Catawba River Basin.
LP6435508
•

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0082546
Facility Information
Applicant/Facility Name:
Town of Granite Falls - WTP
Applicant Address:
PO Drawer 10, Granite Falls, NC 28630
Facility Address:
100 Lakeside Avenue, Granite Falls, NC 28630
Permitted Flow (MGD):
N/A 05 — 09 Monthly Avg Flow = 0.0478 MGD
Type of Waste:
Backwash from Conventional WTP
Facility Classification:
PC-1
Permit Status:
Renewal
County:
Caldwell
Miscellaneous
Receiving Stream:
Lake Rhodhiss
(Catawba River)
Regional Office:
ARO
Stream Classification:
WS-IV — B CA
State Grid / USGS Quad:
Granite Falls
303(d) Listed?
No
Permit Writer:
Bob Guerra
Basin/Subbasin:
Catawba / 03-08-31
Date:
01/20/2010
Drainage Area (mi2):
•
Lat. 35° 47' 11" N Long. 81° 27' 29" W
Summer 7Q10 (cfs)
Winter 7Q10 (cfs):
30Q2 (cfs)
Average Flow (cfs):
IWC (%):
90%
Summary: The Town of Granite Falls submitted a permit renewal application on June 2, 2009. They operate
a conventional water treatment plant with a potable design flow of 2.5 MGD and an average backwash reject
flow of .050 MGD. Recent (10-14-09) Water Treatment Plant Strategies will be utilized during issuance of this
permit renewal.
Treatment processes and wastewater description: Chlorination, Alum Flocculation, Potassium
Permanganate or Carbon Addition, Polymer Addition and sedimentation. Backwash water from the water
treatment filtration process plus alum sludge water from the water treatment sedimentation basins.
Wastewaters enter the alum sludge holding tank. The wastewater waters are allowed to settle and the clear
supernaught is decanted and discharge on to a sand filter bed. The wastewaters are coarse sans filtered and
discharged to Lake Rhodhiss (Catawba River).
Monitoring Data Review:
DMR - DMRs were reviewed for the period of March 2005 to June 2009. The average flow for this period was
0.0478 MGD, Monthly TSS averaged = 1.102 mg/L and Daily Max = 1.34 mg/L. All parameters were within
permit limits.
Instream sampling: The permit has a Turbidity —Upstream/Downstream sampling requirement indicating the
discharge cannot cause turbidity in the receiving stream to exceed 25 NTU. Review of DMR data shows no
instances of exceeding the 25 NTU. This sampling requirement will be deleted from the permit during this
renewal cycle and replaced with Effluent monitoring only.
Effluent Toxicity: Pursuant to Water Treatment Plant Strategy, this facility will be required to perform
Quarterly sampling (Monitoring only) at a 90 % concentration.
Fact Sheet
NPDES NC0082546
Renewal
Page 1

SUMMARY OF PROPOSED CHANGES
Permit Condition
Proposed Changes
Comments
Settleable solids
Limits/sampling
Remove from permit
Per WTP Strategy 10-14-09
Turbidity Monitoring
Changed from Upstream — Downstream
to Effluent Monitoring only with no limit.
No exceedence during existing permit
cycle — Per WTP Strategy 10-14-09
Total Al monitoring
frequency
Changed from weekly to Quarterly
Per WTP Strategy 10-14-09
Total Iron monitoring
frequency
Changed from weekly to Quarterly
Per WTP Strategy 10-14-09
Total Copper
monitoring
Quarterly monitoring added
Per WTP Strategy 10-14-09
Fluoride monitoring
Quarterly monitoring added
Per WTP Strategy 10-14-09
TRC
Limit of 28 ug/L added and monitoring
frequency changed to 2xmonth
Per WTP Strategy 10-14-09
Whole Effluent Toxicity
90% Quarterly (Monitoring only ) added at
Per WTP Strategy 10-14-09
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
February 3, 2010
April 3, 2010
If you have questions regarding any of the above information or on the attached permit, please contact Bob
Guerra at [phone].
NAME:
REGIONAL OFFICE COMMENTS
DATE:
NAME: DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NC0082546
Renewal
Page 2

,d4
6D.01—me % es')( 5V/6

4
SOC PRIORITY PROJECT: Yes No X
IF YES, SOC NUMBER
TO: NPDES UNIT
WATER QUALITY SECTION
ATTENTION: Bob Guerra/ NPDES Raleigh
DATE: 10/09/2009
NPDES STAFF REPORT AND RECOMMENDATION
Caldwell COUNTY
PERMIT NUMBER NC0082546
PART I - GENERAL INFORMATION Town of Granite Falls WTP
1. Facility and Address: Town of Granite Falls Water Treatment Plant Backwash Facility
100 Lakeside Avenue, Granite Falls, NC 28630
Mailing Address:
Town of Granite Falls WTP
PO Drawer 10
Granite Falls, NC 28630-0010
2. Date of Investigation: 10/7/09
3. Report Prepared By: Janet Cantwell/ DWQ-ARO
4. Persons Contacted and Telephone Number: Shuford Wise! Water Resources Director, 828-396-7111
5. Directions to Site: From the intersection of Lakeside Drive and Main Street (Highway 321-Alt) in Granite Falls, travel
Southwest on Lakeside Drive approximately 1 mile to the plant. The discharge is located just Southeast of the plant at •
point where the driveway circles by the lake.
6. Discharge Point(s), List for all discharge points:
Latitude: 35 47m 11 s degrees Longitude: 81 27m 29s degrees
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No.: D138W U.S.G.S. Quad Name : Granite Falls
7. Site size and expansion area consistent with application? N/A, this is not an expansion.
Yes No If No, explain:
8. Topography (relationship to flood plain included): Location is on a slope adjacent to the flood plain.
9. Location of nearest dwelling: @ 2,500' per Shuford Wise' statement
10. Receiving stream or affected surface waters: Lake Rhodhiss (Catawba River)
a. Classification: WS-IV, B, CA
-1-

b. River Basin and Subbasin No.: Catawba River Basin, Subbasin # 030831
c. Describe receiving stream features and pertinent downstream uses:
Recreation, wildlife support, run of the river impoundment used as a water supply
and water for hydroelectric generation.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
(There is information on the NPDES permit application -Short Form C-WTP)
1. a. Volume of wastewater to be permitted (actual capacity of the tank is 250,000 gallons per S. Wise).
No discharge /possible stormwater MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater Treatment facility?
The current permit contains no flow limitation.
c. Actual treatment capacity of the current facility (current design capacity).
Plant design potable flow rate is 2.5 MGD; backwash or reject flow is 0.050 average MGD.
d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the
previous two years: N/A, none issued in the past two years.
e. Please provide a description of existing or substantially constructed wastewater treatment facilities:
Settling tank with ultrasonic level indicator and sand filter for filtration of the settling tank's
supernatant.
f. Please provide a description of proposed wastewater treatment facilities: N/A, is existing facility.
g. Possible toxic impacts to surface waters:
Chlorine, aluminum sulfate, polymer, potassium permanganate, carbon, calcium carbonate
(lime), hydrofluorisilic acid (fluoride), ammonia toxicity, metals from coagulants, and also
something could pass into the treatment plant through the intake.
h. Pretreatment Program (POTWs only): N/A
in development
should be required
approved
not needed
2. Residuals handling and utilization/disposal scheme: Alum sludge is hauled and land applied w/ waste-
water biosolids.
a. If residuals are being land applied, please specify DWQ Permit Number: WQ0001618
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
c. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet): PC
4. SIC Codes(s):
Primary
Main Treatment Unit Code:
Secondary
t
-2-

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies involved. (municipals
only)? N/A
2. Special monitoring or limitations (including toxicity) requests: None
3. Important SOC, JOC, or Compliance Schedule dates: (Please indicate) N/A
Submission of Plans and Specifications
Begin Construction
Complete Construction
Date
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available. Please
provide regional perspective for each option evaluated. N/A
Spray Irrigation:
Connection to Regional Sewer System:
Subsurface:
Other disposal options:
5. Other Special Items: None
PART IV - EVALUATION AND RECOMMENDATIONS
Renewal of permit is recommended.
Janet Cantwell
Signature of Report Preparer
Water Quality Regional Supervisor
10/09/2009
Date
-3-

Barry Hayes
Mayor
Frank Mackie
Mayor Pro Tem
TOWN OF GRANITE FALLS
June 01, 2009
Mr. Charles H. Weaver, Jr.
NCDENR Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Request For NPDES Permit Renewal
Town of Granite Falls Alum Sludge Facility
NPDES Permit Number NC0082546
Dear Mr Weaver:
Council Members
Dr. Caryl B. Burns
Jim C. Green
Donald Kirkpatrick
Michael Mackie
Tracy Townsend
Linda K. Story
Town Manager
[e-mail]
RECEIVED
JUN 2 2009
DENR • WATER QUALITY
POINT SOURCE BRANCH
Enclose please find one (1) signed and two (2) copies of NPDES Short Form C - WTP basic
application packet for the Town of Granite Falls Alum Sludge Facility
If additional information is required to process this permit application or if I can be of any
further assistance please let me know. My telephone number is (828) 399 -7111, fax number
[phone], and email address [e-mail]
embargmail.com
Sincerely,
M. Shuford Wise
Water Resources Director
enclosures:
P.O. Drawer 10 • Granite Falls, North Carolina 28630-0010 • Phone [phone] • Fax [phone]
www.granitefallsnc.com

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number
'NC0082546
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Town of Granite Falls
Granite Falls Water Treatment Plant Backwash Facility
Post Office Drawer 10
Granite Falls
North Carolina 28630-0010
[phone]
[phone]
[e-mail]
2. Location of facility producing discharge:
Check here if same as above 0
Street Address or State Road
City
State / Zip Code
County
100 Lakeside Avenue
Granite Falls
North Carolina 28630
Caldwell
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Town of Granite Falls
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
4. Ownership Status:
Post Office Drawer 10
Granite Falls
North Carolina 28630-0010
[phone]
[phone]
Federal 0 State ❑
5. Type of treatment plant:
Private ❑ Public El
Page 1 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
O Ion Exchange (Sodium Cycle Cationic ion exchange)
❑ Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener
0
6. Description of source water(s) (i.e. groundwater, surface water)
Surface water
7. Describe the treatment process(es) for the raw water:
Chlorination, Alum Flocculation, Potassium Permanagate or Carbon Addition, Polymer
Addition, Sedimentation
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Bachwash water from the the water treatment filtration process plus alum sludge water
from the the water treatment sedimentation basins. Wastewaters enter the alum sludge
holding tank. The wastewater waters are allowed to settle and the clear supernaught is
decanted and discharged on to a sand filter bed. The wastewaters are coarse sand filtered
and dischaged into Lake Rhodhiss.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge:
Continuous ❑ Intermittent El
If intermittent:
Days per week discharge occurs: 3 To 5
11. Plant design potable flowrate 2.5 MGD
Backwash or reject flow .050 Average MGD
Duration: 1 To 6 Hours
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Catawba River, Lake Rhodhiss Latitude 35°+ 47m l is Longitude 81° 27m 29s
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Page 2 of 3
C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Chlorine,Alumium Sulfate, Polymer, Potassium Permanagate, Carbon
Calcium Carbonate (Lime), Hydrofluorisilic Acid (Fluoride)
14. Is this facility located on Indian country? (check one)
Yes ❑ No El
15. Additional Information:
✓ Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
✓ Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
• New applicants must contact a permit coordinator with the NCDENR Customer
Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
• Analyses of source water collected
✓ Engineering Alternative Analysis
• Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
M. Shuford Wise Water Resources Director
Printed name o Person Signi
g
Title
June 01, 2009
Signature of Applicant Date
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 of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 3 of 3 C-WTP 03/05

Barry Hayes
Mayor
Frank Mackie
Mayor Pro Tem
TOWN OF GRANITE FALLS
Town of Granite Falls
Wastewater Treatment Plant
NPDES # NC0082546
Statement to Delegate Authority to Authorized Representative:
Council Members
Dr. Caryl B. Burns
Jim C. Green
Donald Kirkpatrick
Michael Mackie
Tracy Townsend
Linda K. Story
Town Manager
[e-mail]
Authority is hereby given to M. Shuford Wise to act as the authorized representative for
all matters that directly effect the operational, reporting, and permitting requirements
of the Town of Granite Falls Wastewater Treatment Plant NPDES Permit Number
NC0082546.
Given This Day June 01, 2009
By Barry Hayes, Mayor Town of Granite Falls
P.O. Drawer 10 • Granite Falls, North Carolina 28630-0010 • Phone [phone] • Fax [phone]
www.granitefallsnc.com

Town of Granite Falls
Water Treatment Plant
Alum Sludge Facility
Management Plan
NPDES Permit # NC0082546
1. All alum sludge is held and thickened in the alum sludge holding tank.
2. When the thickened sludge reaches the desired level the sludge is pumped into tanker
trucks and transported to permitted area farm land.
3. The alum sludge is unloaded and applied along with wastewater bio-solids by a Sludge
Management Bio-solids Application company to area farm land under the provisions of
of Land Application Permit Number WQ0001618
4. The application frequency is typically one (1) event per year with an estimated amount of
200,000 gallons.

SCHEMATIC DIAGRAM OF THE TREATMENT FACILITIES AT GRANITE FALLS WATER TREATMENT PLANT
• ALUM
• POLYMER
• PRE -CHLORINE
• PRE LIME
LAKE RHODHISS
INTAKE {RW2}
LAKE RHODHISS
INTAKE {RW1
•
•
FLASH MIX
• POTASSIUM PERMANGANATE
• ACTIVATED CARBON
LAKE RHODHISS
SAND FILTER
W
A
S
T
E
► � FLOC BASIN ►
ALUM
SLUDGE
FACILITY
250,000 GAL
SED 1
SED 2
SED 3
SED 4
SED 5
SED 6
• POST CHLORINE
• PHOSPHATE
• FLUORIDE
• POST LIME
•
F4
F6
CLEAR WELL
30,000 GAL
LAND APPLICATION
CLEAR WELL
200,000 GAL
CLEAR WELL
500,000 GAL
SYSTEM

\ L. [i
- - • •
7 ,
r
Discharaq_point
Latitufe 35 ± 47m 11s lingibrim 81° 2Em 29s
Lake Rhodhiss
7 A

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• Owner Name: TOWN OF GRANITE FALLS
• Mailing Address: P O DRAWER 10
• City: GRANITE FALLS
• State: NC
• Lp:28630
• Tax Account#: 051863
• Land Units: 9.64
• Land Type: AC
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• Acreage from Map: 1.33064222
• Legal: 0180/0501 1941 0.00
• NCPIN: 2775603770
• Parcel- (D:0811919
• Total Value: 5679,500.00
• Fire District: S CALDWELL
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