NC0088056_Permit Issuance_20151023

K-Z
North Carolina Department of Environmental Quality
Pat McCrory
Governor
Mr. Ed Nunez
Vista Developers, LLC
525 N Main St
Hendersonville, NC 28792
Dear Mr. Nunez:
Donald R. van der Vaart
Secretary
October 23, 2015
Subject: Issuance of modified NPDES Permit NC0088056
Blacksmith Run WWTP
Henderson County
Class WW-2
Division personnel have reviewed and approved your request to renew 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).
This final permit includes no major changes from the draft permit sent to you on
September 9, 2015.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(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 any other Federal, State, or Local governmental permit that may be required. If you
have any questions concerning this permit, please contact Charles Weaver at telephone number (919) 807-
6391.
Sincer ly,
S. Jay Zimmerman, 4Dir7or
Division of Water Resources
cc: Central Files
Asheville Regional Office
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] / hfp://poaal.ncdenr.o4weblwq
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/101/6 Post Consumer Paper

Permit NCO088056
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
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,
Vista Developers, LLC
is hereby authorized to discharge wastewater from a facility located at the
Blacksmith Run WWTP
Chimney Rock Rd, near Edneyville
Henderson County
to receiving waters designated Lewis Creek in subbasin 04-03-02 of the -French Broad River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof
The permit shall become effective November 1, 2015.
This permit and the authorization to discharge shall expire at midnight on October 31, 2020.
Signed this day October 23, 2015
Visio
Zimmerman, Directorn of Water Resources w
By Authority of the Environmental Management Commission
Page 1 of 5

Permit NCO088056
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.
Vista Developers, LLC is hereby authorized to:
1. Continue to operate a 0.089 MGD wastewater treatment that includes
the following components:
➢ Influent pump station with duplex 5.5-hp pumps rated at 380 GPM
➢ Bar screen
➢ 22,500-gallon flow equalization basin with duplex pumps (2-hp each/34 GPM)
➢ Dual -path 50,720-gallon aeration basins with triplex blowers (172 SUM
each) providing diffused air
➢ Two 144-ft2 clarifiers with sludge return
➢ 13,629-gallon aerobic sludge digester with a 5-hp blower
➢ UV disinfection with 6 bulb racks
➢ 2000-gallon post aeration tank
➢ V-notch weir with continuous flow measurement
➢ 125-kw standby generator
This facility is located at the Blacksmith Run WWTP, off Chimney Rock
Rd near Edneyville in Henderson County.
2. Discharge from said treatment works into Lewis Creek, currently
classified C-Trout waters in hydrologic unit 06010105 of the French
Broad River Basin, at the location specified on the attached map.
Page 2 of 5

Permit NCO088056
Part I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 02B.0500 et seq.]
Beginning upon the effective date of this permit and lasting until permit expiration, the Permittee is
authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and
monitored) by the Permittee as specified below:
WAN® Q ENroll
E t t
:, �. .;D alp; Measurem� ent amP r - am e
Flow
50050 0.089 MGD Continuous Recording Influent or Effluent
BOD, 5-day, 200C
[CO310]
NH3 as N
[_C0610
Total Suspended Solids
[CO530]
Fecal Coliform [316161"
Total Residual
Temperature (°C)
00010
pH
[004001
Total Nitrogen [C0600]
Total Phosphorus
30.0 mg/L
7.0 mg/L
30.0 mg/L
200 / 100 ml
45.0 mg/L
20.0 mg/L
45.0 mg/L
400 / 100 ml
28 Ng/L
6.0 and < 9.0 standard units
Weekly
Weekly
Weekly
Weekly
Weekly
Weekly
Weekly
Semi-annual
Semi-annual
Composite
Effluent
Composite
Effluent
Grab
Effluent
Grab
Grab
Grab'
Grab
.Composite
Composite
Effluent
Effluent
Effluent
Effluent
Effluent
Effluent
Notes:
I. No later than 270 days from the effective date of this permit, the permittee shall begin
submitting discharge monitoring reports electronically using the Division's eDMR system [see
A. (2)].
2. Total Residual Chlorine (TRC) limit and monitoring requirements apply only if chlorine is
used for disinfection. The Permittee shall report all effluent TRC values reported by a NC -
certified laboratory [including field -certified]. Effluent values < 50 µg/L will be treated as zero
for compliance purposes.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 5

Permit NCO088056
A. (2) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 143-215.1(b)]
Proposed federal regulations require electronic submittal of all discharge monitoring reports
(DMRs) and specify that, if a state does not establish a system to receive such submittals, then
permittees must submit DMRs electronically to the Environmental Protection Agency (EPA). The
Division anticipates that these regulations will be adopted and is beginning implementation.
NOTE: This special condition supplements or supersedes the following sections within Part II of
this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)]
Beginning no later than 270 days from the effective date of this permit, the permittee shall
begin reporting discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and submitted electronically using eDMR. The eDMR system allows permitted facilities to
enter monitoring data and submit DMRs electronically using the internet. Until such time
that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting
Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to
the state electronically using eDMR and will be required to complete the eDMR submission by
printing, signing, and submitting one signed original and a copy of the computer -printed eDMR
to the following address:
NC DEQ / Division of Water Resources / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, NC 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1
1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be
submitted to. the -mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin using eDMR. Temporary waivers
shall be valid for twelve (12) months and shall thereupon expire. At such time, DMRs shall be
submitted electronically to the Division unless the permittee re -applies for and is granted a
new temporary waiver by the Division.
Page 4 of 5

Permit NC0088056
Information on eDMR and application for a temporary waiver from the NPDES electronic
reporting requirements is found on the following web page:
http://,3ortal.ncdenr ora/web/Wg/admin/boa/ipu/edmr
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the month
following the commencement of discharge.
2. Si nator Re uirements rsupiplements Section B. 11, band su ersedes
Section B. (11,.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part II, Section B. (11)(b). A person, and not a position, must be delegated signatory a
for eDMR reporting g ry authority
p g purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR
user account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please
visit the following web page:
http://iDortal.ncdenr.org/web/Wa,ladmin/bog/iDu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting
e possibility o false information,
including the P y offines and imprisonment for knowing violations: "
3. Records Retention [Supplements Section D. (6.)]
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from
the date of the report. This period may be extended by request of the Director at any time [40
CFR 122.41].
Page 5 of 5

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Blacksmith Run WWTP - NCO088056
USGS Quad Name: Bat Cave, N.C. Latitude:
Receiving Stream: Lewis Creek 35023'21"
Stream Class: C-Trout Longitude:
Subbasin: French Broad/ 04-03-02 82021"51"
Facility
Location 0
NortA Map not to scale
Henderson Countv

ASEEVVIId,E
CITIZEN TIMES
VOICE OF THE MOUNTAINS • CInMN-TZ ES.cem
AFFIDAVIT OF PUBLICATION
BUNCOMBE COUNTY
SS.
NORTH CAROLINA
Before the undersigned, a Notary Public of said County and
State, duly commissioned, qualified and authorized by law
to administer oaths, personally appeared Emily Thomas,
who, being first duly sworn, deposes and says: that she is
the Affidavit Clerk of The Asheville Citizen -Times,
engaged in publication of a newspaper known as The
Asheville Citizen -Times, published, issued, and entered as
first class mail in the City of Asheville, in said County and
State; that she is authorized to make this affidavit and
sworn statement; that the notice or other legal
advertisement, a true copy of which is attached hereto, was
published in The Imes on the
following dat • September 13th, 2015. d that the said
newspaper in whit sal no is , er-�ocument or legal
advertisement was published was, at the time of each and
every publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of the
General Statues of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the
General Statutes of North Carolina.
Signed this 161h day of September, 2015
q
(Signature of perkn making affidavit)
Sworn to and subscribed before me the 161h day of
expires the 5th day of October,
L"T- NOTARY
[phone] 1 [phone] FAX
14 O. HENRYAVE. I P.O. BOX 2090 1 ASHEVILLE, NC 28802 1 [phone] PUBLIC; vY
C)G,aMelr $: h �q,,p

12014 AU Number: ) )AU Name: )
6-34-(1) Davidson River
From source to Avery Creek
IRCategory: ACS: Parameter Of Interest:
5 EC pH (6 su, AL, FW)
6-34-(15.5) Davidson River
From Avery Creek to Olin Corporation Water Supply Dam
French Broad River Basin
Area: AU Units: Classification:
8.1 FW Miles WS-V,B;Tr,HQW
Collection Year: 303(d) yr:
2012 2012
2.7 FW Miles WS-V,B;Tr
iCategory:
ACS:
Parameter Of Interest:
Collection Year:
303(d) yr:
i
EC
pH (6 su, AL, FW)
2012
2008
6-55-8-2b Devils Fork 2.7 FW Miles C
From first unnamed tributary west of State Route 1006 to Johnson Drainage Ditch
ACS:
Parameter Of Interest:
Collection Year:
303(d) yr:
LIRCategory:
5
EC
Benthos Poor (Nar, AL, FW)
2000
2006
6-(54.75)b FRENCH BROAD RIVER
From Mud Creek to NC 146
8.2 FW Miles B
iCategory:
ACS:
Parameter Of Interest:
Collection Year:
303(d) yr:
i
EC
Fecal Coliform (GM 200/400 5 in 30, REC, FW)
2010
2012
6-(54.75)e FRENCH BROAD RIVER 3.9 FW Miles B
From Fletcher Martin Road to Sandymush Creek
IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
5 EC Benthos Fair (Nar, AL, FW) 2002 2006
6-96-(0.5)a Ivy Creek (River) 6.5 FW Miles WS41;HQW
From source to Little Ivy Creek Adkins Branch
2Category:
ACS:
Parameter Of Interest:
Collection Year:
303(d) yr:
i
EC
Fecal Coliform (GM 200/400 5 in 30, REC, FW)
2011
2014
6-96-(11.3) Ivy Creek (River) 0.5 FW Miles WS-II;HQW,CA
From Adkins Branch to a point 0.6 mile downstream of Adkins Branch (Town of Mars Hill water supply intake)
IRCategory: ACS: Parameter Of Interest: Colleetiomyear: 303(d) yr:
5� EC Fecal Coliform (GM 200/400 5 in 30, REC, FW) 2011 2014
6-55-11-6 Lewis Creek 3.8 FW Miles C;Tr
From source to Clear Creek
2Category: ACS: Parameter Of Interest: Collection Year: 303(d) yr:
i EC Benthos Fair (Nar, AL, FW) 2006 2008
�r
2014 NC 303(d) List -Category 5 Final December 19, 2014 Page 30of 149

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require
full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile
home parks, etc) that can be administratively renewed with minor changes, but can include
facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing,
instream monitoring, compliance concerns).
Basic Information for Expedited Permit Renewals
Permit Writer/Date
Charles H. Weaver — 9/8/2015
Permit Number
NCO088056
Facility Name
Blacksmith Run WWTP
Basin Name/Sub-basin number
French Broad / 04-03-02
Receiving Stream
Lewis Creek
Stream Classification in Permit
C
Does permit need Daily Max NH3 limits?
No — already present
Does permit need TRC limits/language?
No — already present
Does permit have toxicity testing?
No
Does permit have Special Conditions?
No
Does permit have instream monitoring?
No
Is the stream impaired (on 303(d) list)?
Yes. Benthos Fair, based on 2006 data
Any obvious compliance concerns?
Facility began discharging in 2011. One
enforcement in 2013. Two violations for
fecal coliform in 2014.
Any permit mods since lastpermit?
None
New ex iration date
10/31 /2020
Comments received on Draft Permit?
Most Commonly Used Expedited Language:
• 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream
is listed as an impaired waterbody on the North Carolina 303(d) Impaired Waters List.
Addressing impaired waters is a high priority with the Division, and instream data will
continue to be evaluated. If there is noncompliance with permitted effluent limits and
stream impairment can be attributed to your facility, then mitigative measures may be
required".
TRC language for Compliance Level for Cover Letters/Effluent Sheet Footnote:
"The facility shall report all effluent TRC values reported by a NC certified laboratory
including field certified. However, effluent values below 50 µg/1 will be treated as zero
for compliance purposes."

June 17,2015
Wren Tedford
NC DENR / DWR / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Permit NCDES NC0088056
Dear Mr. Tedford,
i
RECEIVEDIDENR/DWR
JUN 2 3 2015
Water Quality
Permitting Section
Enclosed you will find the following documents pertaining to the renewal of our permit:
I. Completed application form — one original and 2 copies
2. Narrative Description of Sludge Management Plan for the facility is outlined in the letter
enclosed from Robert Barr with RPB Systems.
Please forward us our renewal when the process is completed. If you have any questions, please give me
a call at 828-698-2400 or email me at ednCdvistadevelooers com
Sincerely,
Ed Nunez C
Chief Operating Officer
Vista Developers, LLC
525 N. Main S=t • Hendersonville, NC 28792 • Ph t828) 698-2400 • F� [phone] • [phone]
www.vistadevelopm.COM

�RPB Systems
Construction services • Contract Open ions • Maintenance
June 17, 2015
Mr. Ed Nunez
Chief Operating Officer
Vista Developers
Blacksmith Run WWTP
525 North Main Street
Hendersonville, NC 28792
Re:Sludge Management Plan/Blacksmith Run WWTP
Mr. Nunez,
RECEIVED/DENR/DWR
JUN 2 3 2015
Water Quality
Permltting Section
As requested and part of your permit renewal for Blacksmith Run WWTP this letter will
outline the sludge Management Plan as part of Permit NPDES NC0088056.
Waste sludge is directed to the internal sludge holding chamber where the waste is
aerated and clear water decanted by an adjustable air lift decant pump. The final waste is
hauled by Mikes Septic Pumping to MSD of Buncombe County.
I trust this will enable you to complete your permit renewal. Call to discuss as needed.
Rost l3cwy-
Robert Barr
P.O. Box 1325 Asheville, N.C. 28802
(828)-251-1900 (828)-251-1945

NPDES APPLICATION - FORM D
For privately -owned treatment systems treating 100% domestic wastewaters <1.0 MGD
Mail the complete application to:
N. C. DENR / Division of Water Resources / NPDES Program
1617 Mail Service Center, Raleigh, NC 27699-1617
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
Vista Developers, LLC
Facility Name
Blacksmith Run WWTP
Mailing Address
525 North Main Street
City
Hendersonville
State / Zip Code
NC / 28792
Telephone Number
828-698-2400 1UN 2 3 2015
Fax Number
828-698-8801
Water Qualitu
e-mail Address
ednvistadevelopers.com PermltUng Seetior
a-
2. Location of facility producing discharge:
Check here if same address as above ❑
Street Address or State Road Off US 64
City
Edneyvilie
State / Zip Code
NC / 28727
County
Henderson
3. Operator Information:
Name of the firm, public organization or other entity that operates the facility. (Note that this is not
referring to the Operator in Responsible Charge or ORC)
Name RPB Systems, Inc.
Mailing Address
P.O. Box 1325
City
Asheville
State / Zip Code
NC / 28802
Telephone Number
828-251-1900
Fax Number
828-251-1945
e-mail Address
[e-mail]
1 of 3 Form-D 9/2013

NPDES APPLICATION - FORM D
For privately -owned treatment systems treating 100% domestic wastewaters <1.0 MGD
4. Description of wastewater: Domestic Sewage from School
Facility Generatinsc Wastewater(check all that apply):
Industrial
❑
Number of Employees
Commercial
❑
Number of Employees
Residential
X
Number of Homes 27
School
Number of Students/Staff
Other
❑
Explain:
Describe the source(s) of wastewater (example: subdivision, mobile home park, shopping centers,
restaurants, etc.):
Subdivision
Number of persons served: 54
5. Type of collection system
X Separate (sanitary sewer only) ❑ Combined (storm sewer and sanitary sewer)
6. Outfall Information:
Number of separate discharge points 1
Outfall Identification number(s) 001
Is the outfall equipped with a diffuser? ❑ Yes X No
7. Name of receiving stream(s) (NEW applicants: Provide a map shouring the exact location of each
outfall):
Lewis Creek
S. Frequency of Discharge: X Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: Duration:
9. Describe the treatment system
List all installed components, including capacities, provide design removal for BOD, TSS, nitrogen and
phosphorus. If the space provided is not sufficient, attach the description of the treatment system in a
separate sheet of paper.
Secondary package WWTP with flow equalization, extended aeration, ultra -violet
disinfection, post aeration, flow meter, sludge holding, and standby generator.
2 of 3 Form-D 9/2013

NPDES APPLICATION - FORM D
For privately -owned treatment systems treating 100% domestic wastewaters <1.0 MGD
10. Flow Information:
Treatment Plant Design flow 0.089 MGD
Annual Average daily flow 0.0034 MGD (for the previous 3 years)
Maximum daily flow 0.023 MGD (for the previous 3 years)
11. Is this facility located on Indian country?
❑ Yes X No
12. Effluent Data
NEW APPLICANTS: Provide data for the parameters listed. Fecal Coliform, Temperature and pH shall be grab
samples, for all otherparameters 24-hour composite sampling shall be used. If more than one analysis is reported,
report daily maximum and monthly average. If only one analysis is reported, report as daily maximum.
RENEWAL APPLICANTS: Provide the highest single reading (Daily Maximum) and Monthly Average over
the past 36 months for parameters curre thi in uour Permit. Mark other parameters "N/A'.
Parameter
Daily
Maximum
Monthly
Average
Units of
Measurement
Biochemical Oxygen Demand (BODs)
13.1
3.96
Mg/L
Fecal Coliform
1550
1.8
/ 100 ml
Total Suspended Solids
15.7
4.82
Mg/L
Temperature (Summer)
n/a
n/a
Temperature (Winter)
n/a
n/a
pH
7.6
7.06
13. List all permits, construction approvals and/or applications:
Type Permit Number Type
Hazardous Waste (RCRA)
UIC (SDWA)
NPDES
PSD (CAA)
Non -attainment program (CAA)
NCO088056
14. APPLICANT CERTIFICATION
NESHAPS (CAA)
Ocean Dumping (MPRSA)
Dredge or fill (Section 404 or CWA)
Other
Permit Number
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.
name of Person Signing
00
60-?
Applicant Date
North Carolina General Statute 143-215.6 (b)(2) states: 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.)
3 of 3 Form-D 9/2013

A
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Ed Nunez
Vista Developers, LLC
525 N Main St
Hendersonville, N.C. 28792
Dear Mr. Nunez:
Division of Water Quality
Charles Wakild, P.E.
Director
March 29, 2012
Dee Freeman
Secretary
Subject: Future Modification of NPDES Permit NC0088056
Blacksmith Run WWTP
Henderson County
The Division issued the subject permit on September 20, 2010. At that time, it was noted that Lewis
Creek (the stream to which your facility discharges) was impaired from its designated uses. Further review
by Division staff, including a new instream oxygen -consumption model, was done.
The detailed review of Lewis Creek resulted in a need to modify the ammonia nitrogen effluent
limits for your facility. Given the proximity for your facility to the Western Justice Academy W WTP
(NC0086070), it was determined that effluent limits for both facilities required correction. Revised
ammonia limits for NC0086070 were applied in 2011 as part of the permit renewal. The stricter
ammonia nitrogen limits for your facility will be imnlemented at the next uermit renewal in
2015. It is our intention that this advance notice will allow you the necessary time to make the appropriate
facility modifications.
The existing permit limits are:
➢ 10.0 mg/L monthly average, 35.0 mg/L daily maximum (April 1 through October 31)
➢ 25.0 mg/L monthly average, 35.0 mg/L daily maximum (November 1 through March 31)
The new permit limits will be:
➢ 7.0 mg/L monthly average, 20.0 mg/L daily maximum (year-round)
If you have any questions concerning this matter, please contact Charles H. Weaver at (919) 807-
6391 or via e-mail [[e-mail]].
ncer ly,
harles Wakild, P.E.
cc: Central Files
Asheville Regional Office / Surface Water Protection
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604 NonrthCarolina
Phone: [phone] FAX [phone] I Internet: www.ncwaterquality.org ofthCar /na
An Equal Opportunity/Affirmative Action Employer —50% Recycled/1 Post Consumer Paper u `