NC0074306_Renewal Application_20180223

Wafer- Resources
ENVIRONMENTAL 4UALITY
February 26, 2018
Jeffery Dotson
Town of Forest City
PO Box 728
Forest City, NC 28043-0728
Subject: Permit Renewal
Application No. NCO074306
Forest City WTP
Rutherford County
Dear Applicant:
ROY COOPER
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LEgDA CULPEPPER
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The Water Quality Permitting Section acknowledges the February 9, 2018 receipt of your permit renewal application
and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW
permitting branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit.
The permit writer will contact you if additional information is required to complete your permit renewal. Please respond
in a timely manner to requests for additional information necessary to allow a complete review of the application and
renewal of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deg.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
a(& -
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
State of North Carolina I Environmental Quahty I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6300

FEB �, 3 2018
To whom it may concern, �Ce�
yNater �esSect►on
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The Town of Forest City would like to request permission to
renew its NPDES permit NCOO743O6. Enclosed you will find the short
form application and required paperwork for renewal. Thank you for
your consideration.
Signed: ��-=

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. DEQ / DWR / NPDES
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number INCO074306
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 Town of Forest City
Facility Name Forest City Water Treatment Facility
Mailing Address PO Box 728
City Forest City
State / Zip Code NC/28043
Telephone Number [phone]
®WR
Fax Number [phone]
e-mail Address [e-mail]
FEB Zulu
Water Resources
2. Location of facility producing discharge:
Permitting Section
Check here if same as above ❑
Street Address or State Road 581 Vance Street
City Forest City
State / Zip Code NC/28043
County Rutherford
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 Forest City
Mailing Address PO Box 728
City Forest City
State / Zip Code NC/28043
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑
State ❑
Private ❑
Page 1 of 4 Version 6/2017

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
S. 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) (i.e. groundwater, surface water)
Surface - Second Broad River
7. Describe the treatment process(es) for the raw water:
Rapid Mix (coagulation and disinfection), Flocculation, Sedimentation, Filtration,
Disinfection
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Wastewater generated from the backwashing of filters and the draining and cleaning of
settling basins that is pumped back to the Rapid Mix chamber from our sludge lagoon and
retreated through the steps described in #7
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: 0 Duration: 0
11. Plant design potable flowrate 8 MGD
Backwash or reject flow .056 MGD
12. Name of receiving stream(s) (Provtde a map showing the exact location of each outfall, including
latitude and longitude):
Navaho Creek
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Page 2 of 4 Version 6/2017

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Alum / aluminum sulfate Yes No X
Iron sulfate / ferrous sulfate Yes No X
Fluoride Yes X No
Ammonia nitrogen / Chloramines Yes No X
Zinc -orthophosphate or sweetwater CP1236 Yes X No
List any other additives below:
Poly Aluminum Chloride
Sodium Hypochlorite
Sodium Hydroxide
14. Is this facility located on Indian country? (check one)
Yes ❑
15. Additional Information:
Provide a schematic of flow through the facility, include flow volumes at all points in
the water treatment process. The plan should show the point[s] of addition for
chemicals and all discharges routed to an outfall [including stormwater]. ,
Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
New applicants are strongly recommended to 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.
Printed name of Person Signing
Signature of Applicant
C
11,7120
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
Page 3 of 4 Version 6/2017

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
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 Version 6/2017

Program Information
All of the residuals produced from the Town of Forest City's Water Treatment plant are
stored in the two (2), one million (1,000,000) gallon sludge storage lagoons. The residuals are
produced from the treatment of raw water from the Second Broad River. The residuals come
from two places during the treatment process.
The first location during the treatment that the residuals are produced is from the
sedimentation basins, from where the residuals are allowed to settle out. The return water left in
the sedimentation basin is pumped to the sludge holding lagoons.
The second place in the treatment process that produced residuals are from the filters.
The filters are backwashed and the residuals from the backwash process are sent to the sludge
holding lagoons. Also residuals are sent to the lagoons when a filter is rewashed during plant
start-up.
Once the residuals reach the sludge holding lagoons, they are stored until the lagoons are
full enough to need a distribution event. Once it is determined that a distribution event is needed,
the residuals are allowed to dry and they are removed from the lagoon with front end loaders and
dump trucks. The residuals are given to local landowner's for use as a soil amendment.
All of the residual are stored in the sludge holding lagoons along with any leachate or run
off the may be present.
All land owners that receive the residuals are given an information sheet that will
explain all of the requirements and regulations for the material. This information sheet will also
highlight any nutrients that will be the limiting parameter for determining the residuals loading
rate. In most cases, the limiting parameter for determining the loading rate will be nitrogen.

Town of Forest City WTP
MR) # 01-81-010
Alum Sludge Lagoon Operation
The Town of Forest City Water Treatment is an 8 MGD Conventional
Water Treatment Plant with Flash Mixer, Flocculation, Sedimentation,
and Filtration disposes of filter backwash water through two holding
lagoons. After solids settle, supernatant is recycled back to the head works
(flash mixer) of the plant. Once remaining solids are dewatered and dried
through natural causes, solids are hauled from lagoon by private contractor
and properly disposed of at a landfill.
The Alum Sludge Lagoons have a total holding capacity of two million
gallons. The recirculation pump located in the combined manhole is a Myers
5 Horsepower Non -Clog Pump with an operating capacity of approximately
200 gallons per minute with a maximum daily flow of 288,000 gallons. The
plant averaged a daily raw source flow of 5.10 million gallons during
January to December 2002.
The Town of Forest City policy for Alum Sludge Lagoon Operation
requires recycle flow only during regular operation of Water Treatment
Plant to insure adequate dilution and mix with river water flow. The
treatment process is monitored through hourly laboratory residual checks
and visual inspection.

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