NC0027197_Renewal Application_20130206

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NC®ENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
February 6, 2013
City of Shelby,
City of Shelby ,WTP
P.O. Box 207
Shelby, NC 28151
Subject: Receipt of permit renewal application
NPDES Permit NCO027197
Cleveland County
Dear Mr. Brad R. Cornwell,
John E. Skvarla, III
Secretary
RECEIVED
DIVISION t^.F WATER QUALITY
FEB 14 Z013
MOORcSVIL LE REGIONAL OFFICE
The NPDES Unit received your permit renewal application on January 23, 2013. This permit
renewal has been assigned Charles Weaver (919-807-6391) who will contact you if any
additional information is required to complete your permit renewal. Due to current backlog, you
should continue to operate under terms of your current permit, until a new permit is issued. If
you have any questions, please contact the assigned permit writer.
Sin c rely, /J
Jeff Poupart
Point Source Branch
Cc: Central Files
Morrisville Regional Office
NPDES Unit
1601 Mail Service Center, Raleigh, North Carolina 27699-1601 NorthCarolina
Phone: [phone] Internet: wvvw.ncdenr.gov /�yt
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N01
Post Office Box 207 • Shelby, NC 28151-0207
January 15, 2013
Attn: NPDES Permitting Unit
NCDENR/DWQ/ Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Shelby Water Treatment Plant
NPDES NC0027197 -- Renewal Application
Dear NPDES Permitting Unit:
r
Attached you will find the City of Shelby's Water Treatment Plant NPDES Permit NC0027197 renewal
package. Our permit is set to expire on August 31, 2013 and the City hereby requests the renewal of
said permit.
In consideration of the amount of additional monitoring that has been conducted during this permit
cycle and the subsequent low concentrations of these parameters; the City of Shelby would like to
request the elimination of the quarterly and monthly monitoring of the following parameters:
• Aluminum (Qtrly)
• Calcium (Qtrly)
• Magnesium (Qtrly)
• Manganese (Qtrly)
• Fluoride (Monthly)
• Copper (Monthly)
• Iron (Monthly)
The City would also request the elimination of the Whole Effluent Toxicity monitoring requirement.
If you should have any questions or comments, please contact me at 704-484-6840.
Sincerely,
VDV XdHVu HAI�
Assistant Utilities Director
Cc: Mike Mull; Plant Supervisor/ORC -Shelby 011
CERTIFIED MAIL 7009 0820 000193815159
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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 INCO027197
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
City of Shelby
Facility Name
City of Shelby Water Treatment Plant
Mailing Address
PO Box 207
City
Shelby
State / Zip Code
NC 28151-0207
Telephone Number
[phone]
Fax Number
[phone]
e-mail Address
[e-mail]
2. Location of facility producing discharge:
Check here if same as
above ❑
Street Address or State Road 801 W. Grover Street
City
Shelby
State / Zip Code
NC 28150
County
Cleveland
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
City of Shelby
Mailing Address
PO Box 207
City
Shelby
State / Zip Code
NC / 28151-0207
Telephone Number
[phone]
Fax Number
[phone]
4. Ownership Status:
Page I of 4 C-VCTP 03/05

ppppp-
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Federal ❑ State ❑ Private ❑ Public
5. Type of treatment plant:
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ 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 ❑
6. Description of source water(s) (Le. groundwater, surface water)
Primary - First Broad River Secondary - Broad River
7. Describe the treatment process(es) for the raw water.
Water is pumped from the river into a series of three reservoirs at the WTP. The Raw
Water is mixed and chemicals are added for coagulation. After mixing in the flocculators
(12) water flows into settling basins (10) for solids settling/removal. The water then flows
through the filters (8) for filtering. After the filters; corrosion inhibitor, fluoride and
chlorine are added to the finish water and then pumped to the distribution system
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Some stormwater from the facility, online analyzer discharge water, filter backwash water,
washdown water and residuals from the sedimentation basins flow to the alum residuals
lagoons (2). Filter backwash water is dechlorinated using sodium thiosulfate prior to
discharge to the alum residuals lagoons. The discharge is analyzed periodically and flow
discharges are measured. Reject flow listed below in Item 11 is annual average of
discharge from lagoons and includes all sources noted above.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 7 hours Duration: 4 hours
11. Plant design potable flowrate 12.0 MGD
Backwash or reject flow 0.150 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unnamed tributary of the First Broad River
Page 2 of 4 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to he discharged.
Chlorine, Fluoride, Carbon, caustic, alum, sodium thiosulfate and F35 Corrosion Inhibitor
14. Is this facility located on Indian country? (check one)
Yes ❑ No
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.
Brad R. Cornwell Public Utilities Director
of Applicant
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
Page 3 of 4 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
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 4 of 4 C-WTP 03/05

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
S City of Shelby Water Treatment Plant; NCO027197 Renewal Broad
Sludge Management Plan
For
City of Shelby Water Treatment Plant
NPDES Permit # NCO027197
The City of Shelby operates a 12.0 MGD Water Treatment Facility located on 801 W. Grover Street. The
Water Treatment Facility has an NPDES Permit with the State of North Carolina to discharge water to an
unnamed tributary of the First Broad River. The water discharged to the stream is generated by the filter
washing and solids settling basins in the water treatment process. Some storm water from the water
plant site discharges to these lagoons
The system consists of a 30-inch line conveying the backwash water and sediment to two (2) — 1.5 MG
gravity lagoons located to the west of the of the water plant. These lagoons are each equipped with 6-
inch decant lines and valves. Solids are introduced to a single basin and allowed to settle. Once solids
are settled, the operators then control the decanting while meeting the requirements set forth in the
NPDES Permit for discharge.
The other basin is completely taken out of service and allowed to dry.. Once dried the residuals are
removed with heavy equipment and trucked to an approved landfill for disposal.
Back-up Options
In the event of inclement weather or problems involving the disposal of water treatment residuals, the City
of Shelby would contract with a local firm for dewatering and disposal.

City of Shelby — Water Treatment Plant
Schematic
Flows > 8.0 MGD
Vault/Splitter Box
u Clear Well
Reservoir
Flocculator
Pumping Station
'� Mixer
Settling Basins
Hi Service Pumps
NPDES
Discharge
0Filters (2 MGD each) fit` Residuals Lagoons Solids
El
Alum Caustic � Carbon Chlorine
Sodium Thiosulfate Fluoride - Corrosion Inhibitor
Copper Sulfate
To Distribution
�i
h 8.0 MGD

Map Produced By: Map Information. Shelby Water Treatment Any Zoning data contained In this map This map Is not a substitute for an actual
Is an approximate representation of the survey.This map Is not to be used for
j� City of Shelby Datum:NAD1983 NPDES Discharge Outfall 001 zoning boundaries of the City of Shelby conveyances.Utllity locations shown ere
Coordinate: State Plane and should not be interpreted as an epproximate.This map should not be
r as Office Zone: North Carolina 3200 official boundary, used as a definitive means to locate
Scale: 1" = 200' Date: 12/21/07 utility features.