NC0068799_Draft Permit_20200908

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Mr. Brain Osteen, Secretary
Grey stone Enterprises, Inc.
9 Grey stone Dr
Hendersonville, NC 28792
Dear Mr. Osteen:
NORTH CAROLINA
Environmental Quality
September 8, 2020
Subject: Draft NPDES Permit NCO068799
Greystone Subdivision
Grade II Biological WPCS
Henderson County
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure a thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
1. The permit map was updated.
2. The facility classification Grade II Biological Water Pollution Control System (WPCS) was added to
the effluent page.
3. The electronic reporting permit special condition A. (4.) was updated.
The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included in
this draft document (cover, map, and Part I). The conditions are the same as in your current permit
except that agency and division names have been updated. The latest version is available at
https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Henderson County area, per EPA requirements.
Please provide your comments, if any, to me at the address below no later than 30 days after receiving
this draft permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit.
DE Q�� North Carolina Department of Environmental Quality I Division of Water Resources
_ 512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROLINA
Department men�ironmenwiQuality / 919.707.9000

Mr. Osteen
September 8, 2020
Page 2 of 2
If you have questions concerning the draft, please contact me at 919-707-3618, or via e-mail at
[e-mail].
Sincerely,
Derek Denard, Environmental Specialist
NPDES Compliance and Expedited Permitting
Division of Water Resources, NCDEQ
ec: NPDES File [Laserfiche]
Brian Osteen [bosteen215(ogmail.com]
ARO / Tim Heim [[e-mail]]; Landon Davidson [[e-mail]];
Daniel Boss [[e-mail]]
WastewaterOperator Certification Group ([e-mail])

NPDES PermitNC0068799
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provision of North Carolina General Statute 1�5.1other lawful standards
and regulations promulgated and adopted by the North Carolina EnviroManagement
Commission, and the Federal Water Pollution Control Act, as amended,
Greystone
is hereby authorized to discharge
located at the
Greystone Subdivision
9 Graystone Drive, Hendersonville
Henderson County
to receiving waters designated as Clear Creek in the Broad River Basin, in accordance with
effluent limits, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof.
*1
This permit shall become effecti
Wak
This permit and authorization to discharge shall expire at midnight on November 30, 2020.
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

NPDES PermANC0068799
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.
is hereby authorized to:
1
Greystone Enterprise.
continue to operate an existing 0.0217 MGD tewater tr(
components;
• bar screen
• aeration basin with dual blowers
• dual hoppered clarifier with skimmer
• sludge return line
• effluent weir
• sludge holdin
• outfallline
located at the Greystone
h the following
vision WWTP, 9 Greystone Drive, Hendersonville, Henderson
Construct from the Division, upgrade the existing facility to
3. discharge from said treatme t works via Outfall 001, at the location specified on the attached
map into Clear Creek [6-55- 1-(5)], a waterbody classified C located within Subbasin 04-03-02
[HUC: 060101050 02] of th French Broad River Basin.
Page 2 of 8

NPDES PermitNC0068799
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Biological Water Pollution Control System [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit, and lasting until expansion above
0.0217 MGD or November 30, 2020, the Permittee is authorized to discharge treated wastewater from
outfall 001. Such discharges shall be limited, monitored, and reported' by the Permittee as specified
below:
EFFLUENT
CHARACTERISTICS
[Parameter Codes]
LIMITS
MONITORING
REQUIREMENTSI
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 3 (MGD)
50050
0.0217 MGD
Weekly3
I taneous3
I or E
TotalResidual Chlorine (TRC) 4 (µg/L)
500
28 µg/L 4
2/week
Grab
E
BOD, 5-day (20°C) (mg/L)
C0310
0.
45.0 m
Weekly
Grab
E
Total Suspended Solids (TSS) (mg/L)
'A
C0530
mg/L
livs-
0 mg/L
Weekly
Grab
E
FecalCohform5(#/100m1)
16
mr—
200/100m1
eekly
Grab
E
PH (su)
0
> 6.0 and < 9.0 standard unit
Weekly
Grab
E
Temperature (°C)
0
Monit Report
Weekly
Grab
E
Ammonia Nitrogen (NH3-N) 10
itor & Report
2/month
Grab
E
FootnotN:
1. The perni�l�ee shall submit di ge mo ngreports electronically using the NC DWR's eDMR
application syste [see Sectio 4)].
2. I = Influent; Eluent.
3. Flow monitoring will be changed o continuous recording if this facility exhibits operational problems or
repeated incidents of non-compliance with these effluent limitations. If the facility exceeds 80% of design
capacity, flow measurements and recording frequencies may be changed at the discretion of the Division.
4. The Division shall consier all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Perm- ittee shall continue to record and submit all values reported by North Carolina
certified test methods (including field certified), even if these values fall below 50 µg/L.
5. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II.
Section A.
Conditions:
• There shall be no discharge of floating solids or foam visible in other than trace amounts.
Page 3 of 8

NPDES PermitNC0068799
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Biological Water Pollution Control System [15ANCAC08G.0302]
During the period beginning upon expansion above 0.0217 MGD, and lasting until November 30,
2020, the Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges
shall be limited, monitored, and reported' by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
[Parameter Codes]
LIMITS
MONITORING
REQUIREMENTSI
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 3 (MGD)
50050
0.060 MGD
Wee 3
Instantaneous 3
I or E
TotalResidual Chlorine (TRC) 4 (µg/L)
50060
`
28 µg/L 4
2/week
Grab
E
Temperature (°C)
00010
Monitor & Report AL
Weekly
ab
E
PH (su)
00
and <9.0 standard unit
Weekly
b
E
Dissolved Oxygen (mg/L)
0030
6.0 in
Weekly
Grab
E
BOD, 5-day (20°C) (mg/L)
(April 1-October 31)
C0310
mg/
mg/L
eekly
Grab
E
BOD, 5-day (20°C) (mg/L)
(November 1-March 31)
C0310
20.0 m/L
ly
Grab
E
Total Suspended Solids (T g/L)
C0530
30.0 mg/L
45.0 mg/L
Weekly
Grab
E
Fecal Coliform 5 (#/100ml)
31616
200A 00 ml
400/100 ml
Weekly
Grab
E
NH3-N (April 1-October3l) g/L)
10
-2.0 mg L
1 .0 mg/L
2/month
Grab
E
NH3-NI. ber 1-March L)
4.0 m
20.0 mg/L
2/month
Grab
E
g/L)
TotalPhosX(g/L)
C06
Monitor& Report
Semi -Annually
Composite
Effluent
TotalNitro
600
onitor& Report
Semi -Annually
Composite
Effluent
Footnotes:
1. The pennittee shall s dischar nitoring reports electronically using the NC DWR's eDMR application system
[see Section A. (4)].
2. I = Influent; E = Effluent.
3. Prior to expansion of the flo e 0.0217 MGD, the permittee must submit an Engineering Alternatives Analysis (See
special condition A.(3.)). Flow monitoring will be changed to continuous recording if this facility exhibits operational
problems or repeated incidents of non-compliance with these Effluent Limitations. If the facility exceeds 80% of design
capacity, flow measurements and recording frequencies maybe changed at the discretion of the Division
4. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit.
However, the Permittee shall continue to record and submit all values reported by North Carolina certified test methods
(including field certified), even if these values fall below 50 µg/L.
5. Fecal Coliform shall be calculated using the geometric mean, accordingto the procedure detailed in Part IL Section A.
6. For a given wastewater sample, TN = TKN + (NO2-N +NO3 N), where TN is Total Nitrogen and TKN is Total Kjeldahl
Nitrogen, and (NO2 N + NO3-N) is Nitrite/Nitrate Nitrogen.
Conditions:
• There shall be no discharge of floating solids orvisible form in otherthan trace amounts.
Page 4 of 8

NPDES PermitNC0068799
A. (3.) ENGINEERING ALTERNATIVES ANALYSIS REQUIREMENT
[15ANCAC 02H .0105]
Prior to expansion of the flow above 0.0217 MGD, the permittee shall submit and have approved a
detailed Engineering Alternatives Analysis (EAA) of all available means to dispose of this facility's
wastewater. This justification for expansion shall be sent as a supplement to the application for the
Authorization to Construct (ATC). This EAA shall be prepared in compliance with the Division's
guidance document for EAAs.
If no EAA is submitted, the Division may reopen and modify this permit to increase monitoring
frequencies or change effluent limits as necessary to prot&the recei ' g stream.
Submit one copy of the EAA to the following add,,&
NCDEQ / DWR / Asheville Regii
Attention: Mr. Landon Davidson,
2090 U.S. Hwy 70
Swannanoa, NC 2877�
Submit the original and
Operations Supervisor
the following address$
ivision of Water Resources / Water Quality Permitting Section
27699-161
11
Page 5 of 8

NPDES PermitNC0068799
A. (4.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on
December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDESPermits): _
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports 4AIi
1. Reporting Requirements [Supersedes Section D. (2.) au&Section E.
The permittee shall report dischar4MiLonitonng data electroniffflly using the 1,41WR's
Electronic Discharge Monitoring DMR) internet application.
Monitoring results obtained during th ev?5Us`­month(s) shall be summarized for each month and
submitted electronically using eDMR. TteDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: httbs://dea.nc.tzov/about/divisions/water-resources/edmr.
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 ' charge monitoring data may be submitted on paper DMR forms (MR 1, 1.1,
2, 3) or alternative ppr6ved by the Director. Duplicate signed copies shall be submitted to
the following address:
NC DEQ / Division of Watd
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Car4NW 276
See "How to Request
f�Water Quality Permitting Section
17
from Electronic Reporting" section below.
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.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports; and
Page 6 of 8

NPDES PermitNC0068799
Clean Water Act (CWA) Section 316(b) Annual Reports.
➢ NPDES Electronic Reporting Rule — Phase 2 Extension. EPA is proposing to extend
the Phase 2 deadline from December 21, 2020 until at least December 21, 2023. The
current compliance date will be extended if the implementation date is extended as a
final regulation change in the federal register.
The permittee may seek an electronic reporting waiver from
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), tI
of each electronic submission. The permits
the initial recipient for the electronic submi
(see "How to Request a
initial recipient at the time
ate resources to identify
Initial recipient of electronic NPDES information NPDES-tegulated faclq
entity (EPA or the state authorize PA to imple ent the NPDES program)
designated entity for receiving ele DES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that 1
each type of electroniqjjjjM&ssion and tbr E
appropriate electronic reporting tool will be
Electronic Reporting Rule is found at:
httDs://www.federalre2ister. s4ov/documents,
Electronic submissions must start by the
above.
3. How
means the
hs the
the appropriate electronic reporting tool for
Instructions on how to access and use the
as well. nfon*ation on EPA's NPDES
2/2015-2 54/national-pollutant-discharge-
in the "Reporting Requirements" section
The permittee may seek a tempo ry electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a pe ittee must first submit an electronic reporting waiver request to
the Division. Requ�v�,,ts for temp rary electronic reporting waivers must be submitted in writing to
the Division for writtZn approval at least sixty (60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring
data and reports shall be submitted electronically to the Division unless the permittee re -applies for
and is granted a new temporary electronic reporting waiver by the Division. Approved electronic
reporting waivers are not transferrable. Only permittees with an approved reporting waiver request
may submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page: http://deg.nc.gov/about/divisions/water-resources/edmr
Page 7of8

NPDES PermitNC0068799
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)l
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part
II, Section B. (I I.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (I 1)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting 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 e information on North
Carolina's eDMR system, registering for eDMR and obtain' DMR user account, please visit
the following web page:
://dea.nc. iaov/about/divisions/water-
Certification. Any person submitting an electr R using the s eDMR system shall make
the following certification [40 CFR 122.22]. THER STATEME F CERTIFICATION
WILL BE ACCEPTED:
"I certify, under penalty of law, that this document OW all attachments were pried under my
direction or supervision in accorAnce w ith a system designed to assure that qua a ed 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 knowle e and belief, true, accurate,
and complete. I am aware that there are�,ignificant penalties forlWitting false information,
including the possj*bility offines end imprisonment for knowing; ations. "
5. Records Retention [Supplements Sectio(6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be aintained for a period of at least 3 years from the
date of the report. This period may be extendequest of the Director at any time [40 CFR
122.41]66, 'S�
Page 8 of 8

rd Ch el�
,
Graystone Dr
Mud Creek - ---
[flows northwest] t
o .
• Outfall001 _-
2 Greystone — L�
Al
t i h Subdivison Boundary =- N1i1e
J o 0
;) Outfa11001
-' u• [flows southwest] ' • �a°i
• Clear Creek
[flows southwest]
Wo 11 !bVTl/1,.
Greystone Enterprises, Inc.
Greystone Subdivision
9 Greystone Drive, Hendersonville 28792
Receiving Stream: Clear Creek Stream Class: C
Stream Segment: 6-55-11-(5) Sub -Basin: 04-03-02
Drainage Basin: French Broad RUC: 060101050302
Latitude: 35° 21' 14" Longitude: 82° 26' 42"
USGS Quad: Hendersonville, NC