NC0043257_Permit Issuance_20160706

Water Resources
ENVIRONMENTAL QUALITY
July 6, 2016
Mr. Matthew E. Raynor, Environmental Director
Nature Trail Associates
10006 Hammock Trail
Chapel Hill, NC 27517
Subject:
Dear Mr. Raynor:
PAT MCCRORY
Gomm,
DONALD R. VAN DER VAART
.Sea em, v
S. JAY ZIMMERMAN
Issuance of NPDES Permit NCO043257
Nature Trail MHC WWTP, WW-2
326 Nature Trail, Chapel Hill 27517
Chatham County
Dhe,w,
The Division of Water Resources (the Division) hereby issues the attached NPDES permit for the subject
facility. 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.
The Division understands that you have made no significant changes to your facility since the last permit
renewal. We have made the following updates to your previous permit:
• added parameter codes to Section A. (1.)
• updated the facility map
• corrected Outfall 001 coordinates to 35.8584670 N,-79.0306350 W [350 5 V 30', -790 01' 50"]
• added Electronic Reporting - Discharge Monitoring Reports page [Section A. (5)].
Starting December 21, 2016, 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 final
NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015.
The requirement to begin reporting discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application has been added to your final
NPDES permit. [See Special Condition A. (5.)] For information on eDMR, registering for eDMR and
obtaining an eDMR user account, please visit the following web page:
http://deci.nc.eov/about/divisions/water-resources/edmr.
For more information on EPA's final NPDES Electronic Reporting Rule, please visit the following web
site:
http://www2.epa. govlcompliance/final-national-pollutant-discharge-elimination-system-nodes-electronic-
reporting-rule.
State ofNorth Carolina I Environmental Quality I Water Resources
1617 Mail service Center I Raleigh, North Carolina 27699-1617
919 807 6300

Mr. Raynor
July 6, 2016
Page 2 of 2
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing, upon written request submitted within thirty
(30) days after receiving this letter. Your request must take the form of a written petition conforming to
Chapter 150B of North Carolina General Statutes, and you must file it with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is
made, this permit shall remain 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 Resources or any
other Federal, State, or Local governmental permits that may be required.
If you have questions, or if we can be of fin Cher service, please contact Derek Denard at
[[e-mail]] or call [phone].
espe fully,
zA.Jay ZimmeLAP,G.,
Division of Water Resources, NCDEQ
Enclosure: NPDES Permit NC0043257 (Issuance Final)
he: Central Files
NPDES Program Files
RRO Files/ Attn: Danny Smith
ec: Matthew Raynor, Environmental Director, Nature Trail Associates [[e-mail]]

NPDES Permit NCO043257
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 provisions 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,
Nature Trail Associates CLP
is hereby authorized to discharge wastewater from a facility located at the
Nature Trail MHC WWTP
326 Nature Trail, Chapel Hill 27517
Yancey County
to receiving waters designated as Cub Creek in the Cape Fear 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 August 1, 2016.
This permit and authorization to discharge shall expire at midnight on April 3 0, 2021.
Signed this day July 6, 2016.
S. J Zimmerman, P.G., Direfr
D vision of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

NPDES Permit NCO043257
SUPPLEMENT TO PERMIT COVER SHEET
All "previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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.
Nature Trail Associates CLP
is hereby authorized to:
1. continue to operate an existing 0.04 MGD wastewater treatment facility with the following
components;
♦ influent pump station
♦ equalization basin
♦ flow splitter box
♦ aeration basins
♦ dual clarifiers
♦ aerobic sludge digesters
♦ effluent chlorination
♦ dechlorination
♦ flow monitoring
located at the Nature Trail MHC WWTP, 326 Nature Trail, Chapel Hill, NC, Chatham County,
2. upon receiving an Authorization to Construct from the Division, construct and (after submitting an
engineer's certification form) operate facilities for a design capacity of 0.060 MGD, and
3. discharge from said treatment works via Outfall 001, at the location specified on the attached map
into Cub Creek [16-41-2-10-(0.5)], a waterbody currently classified WS-1V; NSW waters located
within Subbasin 03-06-05 [HUC: 030300020607] of the Cape Fear River Basin.
Page 2 of 8

NPDES Permit NCO043257
171 ZJ
A. (1.) EFFLUENT LINIITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expansion above 0.04
MGD or expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be
limited, monitored and reported' by the Permittee as specified below:
..............:
�w
�A 9
- [Parameer;o�
+ m�onilily
; Daily,
' Iyeas_uxement
Sample
Sample z='
_ _
, Average
1Maximum
"-
Fre"/yyuency.
a"'.'
yp, ,
.r'_ -t
' Locafion►
�1.
Flow (MGD)
50050
0.04 MGD
Continuous
Recording
I or E
BOD, 5-day (20°C) (mg/L)
C0310
17.0 mg/L
25.5 mg/L
Weekly
Composite
E
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
E
NH3 as N (mg/L)
(April 1— October 31
C0610
2.0 mg/L •
10.0 mg/L
Weekly
Composite
E
NH3 as N (mg/L)
(November 1— March 31
C0610
5.0 mg/L
25.0 mg/L
Weekly
Composite
E
Dissolved Oxygen (DO)
00300
Daily average not less than 5.0 mg/L
Weekly
Grab
E
Dissolved Oxygen (DO)
00300
Monitor & Report
Weekly
Grab
U & D
Fecal Coliform 3 (#/100ml)
31616
200 / 100 ml
400 / 100 ml
Weekly
Grab
E
Total Residual Chlorine (TRC) 4 W/L)
50060
28 µg24
2/Week
Grab
E
Temperature CC)
00010
Monitor & Report
Daily
Grab
E
Temperature (°C)
00010
Monitor & Report
Weekly
Grab
U & D
Total Nitrogen (TN) 5 (mg/L)
C0600
Monitor & Report
Quarterly
Composite
E
Total Phosphorus (TP) (mg/L)
C0665
Monitor & Report
Quarterly
Composite
E
pH (su)
00400
>_ 6.0 & < 9.0 standard units
Weekly
Grab
E
Footnotes:
1. Starting on December 21, 2016, begin submitting Discharge Monitoring Reports electronically using
NC DWR's eDMR application system. See Special Condition A. (5.).
2. Upstream — at least 50 feet upstream from the outfall. Downstream — at least 1.2 miles downstream from the
outfall.
3. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II.
Section A.
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. For a given wastewater sample, TN = TKN + NO3 N + NO2 N, where TN is Total Nitrogen, TKN i 3otal_
Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
Conditions:
• There shall be no discharge of floating solids or foam visible in other than trace amounts.
5ID
Page 3 of 8
` y.t.

NPDES Permit N00043257
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.06 MGD)
[ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Beginning upon expansion above 0.04 MGD and lasting until expiration, 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 C- aARACTERISTICS
[Parame er Code]
:.envy
LIMITS"
RE��b IL� R+,EI TENTS I
1V.�onthly ._
Daily r
M, easurement
.Sa-in�le
Sample -
Lo_cafaion
Flow (MGD) ?
50050
0.06 MGD
Continuous
Recording
I or E
BOD, 5-day (20°C) (mg/L) °
C0310
10.0 mg/L
15.0 mg/L
Weekly
Composite
E
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
E
NH3 as N (mg/L)
(April I —October 31
C0610
2.0 mg/L
10.0 mg/L
Weekly
Composite
E
NH3 N as (mg/L)
oval 1 March 31
C0610
5.0 mg/L
25.0 mg/L
Weekly
Composite
E
Dissolved Oxygen (DO) '
00300
Daily average not less than 6.0 mg/L
Weekly
Grab
E
Dissolved Oxygen (DO) °
00300
Monitor & Report
Weekly
Grab
U & D
Fecal Colifonn 3 (#/100m1)
31616
200 / 100 ml
400 / 100 ml
Weekly
Grab
E
4 a
Total Residual Chlorine (TRC) (µg/L)
50060
4
28 µg/L
2/Week
Grab
E
Temperature (°C) -
00010
Monitor & Report
Daily
Grab
E
Temperature (°C) i
00010
Monitor & Report
Weekly
Grab
U & D
Total Nitrogen (TN) 5 (mg/L)
C0600
669 lbs/yr
Quarterly
Composite
E
Total Phosphorus (TP) 5 (mg/L)
C0665
2431bs/yr
Quarterly
Composite
E
pH (su)
00400
>— 6.0 & —< 9.0 standard units
Weekly
Grab
E
Footnotes:
1. Starting on December 21, 2016, begin submitting Discharge Monitoring Reports electronically using
NC DWR's eDMR application system. See Special Condition A. (5.).
2. Upstream — at least 50 feet upstream from the outfall. Downstream — at least 1.2 miles. downstream from the
outfall.
3. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II.
Section A.
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 a North Carolina
certified test methods (including field certified), even if these values fall below 50 µg/L.
5. See Condition A. (3.).
Conditions:
• There shall be no discharge of floating solids or foam visible in other than trace amounts.
Page 4 of 8

NPDES Permit NCO043257
A. (3.) CALCULATION OF TOTAL NITROGEN AND TOTAL PHOSPHORUS LOADS
[G.S. 143-215.1(b)]
a. The Permittee shall calculate monthly and annual TN and TP Loads as follows:
i. Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34
where:
TN (or TP) = the average Total Nitrogen or Total Phosphorous concentration
(mg/L) of the composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharge during the
month (MG/mo)
8.34 = conversion factor, from (mg/L x MG) to pounds
H. Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the
calendar year
b. The Permittee shall report monthly Total Nitrogen or Total Phosphorus results (mg/L and lb/mo)
in the discharge monitoring report for that month and shall report each year's annual results
(lb/yr) in the December report for that year.
A. (4.) PERMIT RE -OPENER: SUPPLEMENTARY NUTRIENT MONITORING
[G.S. 143-215.1(b)]
Pursuant to N.C. General Statues Section 143-215.1 and implementing rules found in Title 15A of
North Carolina Administrative Code, Subchapter 02H, specifically, 15A NCAC 02H.0112(b)(1) and
02H.0114(a), and Part II, Sections B.12 and B.13. of this Permit, the Director of DWR may reopen this
permit to require supplemental nutrient monitoring of the discharge. The additional monitoring will be
to support water quality modeling efforts within the Cape Fear River Basin, and shall be consistent with
a monitoring plan developed jointly by the Division and affected stakeholders.
Page 5 of 8

NPDES Permit NCO043257
A. (5.) 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 and specify that, if a state does not establish a system to receive such submittals, then
permittees must submit monitoring data and reports electronically to the Environmental Protection
Agency (EPA). 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 NPDES Permits):
• Section B. (11.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) Wl
Effective December 21, 2016, the permittee shall report 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 byprinting,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 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. See "How to Request a Waiver 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.
Page 6 of 8

NPDES Permit NCO043257
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
Sewer OverflowBypass Event Reports;
Pretreatment Program Annual Reports; and
Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify
the initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the
entity (EPA or the state authorized by EPA to implement the NPDES program) that is the
designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: bq://www2.epa. ovg /compliance/final-national-pollutant-
discharge-elimination-system-npdes-electronic-reporting=rule.
Electronic submissions must start by the dates listed in the "Reporting Requirements" section
above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers 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 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 electroM"cally 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:
hU://deg.nc.gov/aboutidivisions/water-resources/edmr
Page 7 of 8

NPDES Permit NCO043257
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 1.)(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 more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://deg.nc.gov/about/divisions/Water-resources/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:
7 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 quali, fled 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 false information,
including the possibility of fines and imprisonment for knowing violations. "
5. Records Retention [Supplements Section D. (6.)l
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 8 of 8

F ww Mt Gilead '• ,
W-Ae�IChurch

Public Notice • -
North Carolina Environ-
mental Management Com-
missloWNI.OES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina Envlron-
mental Management Com-
mission proposes to issue a
NPDES wastewater dis-
charge permit to the
person(s) listed below. Writ-
ten comments regarding the
proposed permit will be ac-
cepted until 30 days after
the publish date of this no-
tice. The Director of the NC
Division of Water Re-
sources (DWR) may hold a
public hearing should there
be a significant degree of
public Interest. Please mail
comments and/or Informa-
tion requests to DWR at the
above address. interested
persons may visit the DWR
at 512 N. Salisbury Street,
Raleigh, NC to review in-
formation on file. Additional
Information on NPDES per-
mits and this notice may be
found on our website:
http://deq. ne.gov/abouttdivi-
sionshvater-resources/wa-
ter-resources-
permits/wastewater-
branch/npdes-
wastewater/public-
notices,or by calling (919)
807-6304.
Nature Trail Associates CLP
applied to renew NPDES
permit [NC0043257] for the
Nature Trails MHP WWTP in
Chatham County, dischar-
ging treated domestic
wastewater to Cub Creek,
Cape Fear River Basin.

ehr
an�Dxb �iQxFllb
Affidavit Of Publication: Lee County, North Carolina
the Sanford Herald is a newspaper with a general circulation to actual paid subscribers admitted to the
United States mail in the Periodicals class in Lee County. The Sanford Herald has been published at least one
day in each calendar week for at least-25 of the 26 consecutive weeks immediately preceding the date of this
affidavit.
Traci Chamberlin, Classified Advertising Representative of The Sanford Herald, a newspaper published in Lee
-County in the gtafe of North Carolina, being duly sworn, deposes and says: that the attached advertisement of
notice, in the action entitled:
Pow%
* L t o-ti ce IBC_h-
was duly published in the aforesaid newspaper once a week for 1 consecutive weeks, beginnincwith
the issue dated the 10'day of Mau Zola. , and ending with the issue dated the 1a lday of
INS Zol to
Received of WIWN IN^e4m . t�C-Q f %vi 5 i ov o � W44c-r F cso vvLt- S
$ • 3� , the cost of the above publication.
By:
Traci Chamberlin, Classified Advertising Representative
Sworn to and subscribed before me, this �daM,
.. Y of
Notary
My Commission Expires _:

PAT MCCRORY
6in1HO..V
DONALD R. VAN DER VAART
{'Pater Resources
ENVIRONMENTAL QUALITY
May 18, 2016
MEMORANDUM
To: Allen Hardy
Engineer Supervisor
DWR/PWSS Raleigh Regional Office
From: Derek C.Denard
DWR / Water Quality Permitting Section
919-807-6307; Fax [phone]; [e-mail]
ncdenr.gov
Necmtary
S. JAY ZIMMERMAN
91ma r
Subject: Review of Discharge from for Outfall 001 into Cub Creek [ 16-41-2-10-(0.5)], a waterbody
classified WS-IV; NSW located within Subbasin 03-06-05 [HUC: 030300020607] of the Cape Fear
River Basin
for: NPDES NCO043257
Nature Trail Associates CLP - Nature Trail MHC W WTP
an existing 100% domestic, privately owned, <1.0 MGD
located at 326 Nature Trail, Chapel Hill, NC 27517
Chatham County
Please provide your comments by June 24, 2016 [email OK]
RESPONSE:
-t(�- 1 concur with the issuance of this permit provided the Perm ittee properly operates and maintains the
facility; the Permittee meets the stated effluent limits prior to discharge; and the discharge does not
contravene the designated water quality standards.
1 concur with issuance of the above permit provided the following conditions are met:
I oppose the issuance of the above permit based on reasons stated below, or attached:
Signed: W At- t' Date: 5 (g ((P
cc: Olc
Statcor Nonh Cualina I Em'imnmcnla1Q®lily1 Wa1cTRmume$
1617 Mail service Cavcr I Raleigh, Noah Carolina 27699-1617
919 807 6300

DEQ / DWR / NPDES
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit NCO043257
Derek Denard_ Comnliance & Exnedited Permitting Unit / 919-R07-6307 17Mnv2016
Facility information
Applicant/Facility Name
Nature Trail Associates CLP
Nature Trail MHC WWTP
`Applicant Address
10006 Hammock Trail, Chapel Hill, NC 27517
FacilityAddress
326 Nature Trail, Chapel Hill, NC 27517
Permitted, Flow (MGD) -
0.04 MGD
Type of Waste
100% domestic, privately owned, <1.0 MGD
Facility -Class
03-06-05
County.
Chatham
Permit 'Status
Renewal
Regional
Office
RRO
Stream Characteristics
Receiving Stream
Cub Creek
Stream Classification
WS-IV; NSW
Stream Segment
16-41-2-10-(0.5)
Drainage basin
Cape Fear
30Q2 (cfs)
0.4
Subbasin.[I-TUC]
03-06-05
030300020607
Winter 7Q10 (cfs)
0.2
Use Support
No data
Summer 7Q10.-(cfs) :
0.075
303(d) Listed
Average Flow (cfs).
0.4
State.Grid.
IWC 0/0
92.54%
USGS Topo Quad
Facility Sumniga — This permit is for a privately owned treatment system with 100% domestic wastewater
that is <1MGD. The facility generating the wastewater is residential property with 200 homes in a mobile
home park. The type of collection system is separate (sanitary sewer only). Nature Trail Associates is
authorized to continue to operate an existing 0.04 MGD wastewater treatment facility with the following
components;
♦ influent pump station
♦ equalization basin
♦ flow splitter box
♦ aeration basins
♦ dual clarifiers
♦ aerobic sludge digesters
♦ effluent chlorination
♦ dechlorination
♦ flow monitoring.
Upon receiving an Authorization to Construct from the Division, Nature Trail Associates can construct and
(after submitting an engineer's certification form) operate facilities for a design capacity of 0.060 MGD.
Fact Sheet
Renewal 2016 -- NPDES Permit NCO043257
Page l

Data review —
DMRs were reviewed for the period of Sep2011-Feb2016. DMR data is summarized in Table I below:
Table I (based on daily values)
Parameter
Average
of Value
Min of
Value
Max of
Value
UoM
00010 - Temperature, Water Deg. Centigrade
16.81
7.8
109
deg c
00300 - DO, Oxygen, Dissolved
7.04
6.1
8.2
mg/l
00400 - pH
6.97
6.5
8.2
su
50050 - Flow, in conduit or thru treatment plant
0.025
0.006
0.252
mgd
50060 - Chlorine, Total Residual
15.08
0.02
1 27
pg/l
C0310 - BOD, 5-Day (20 Deg. C) - Concentration
2.96
0.045
19
mg/l
C0530 - Solids, Total Suspended - Concentration
3.34
1
14
mg/I
C0600 - Nitrogen, Total (as N) - Concentration
5.48
0.24
17
mg/i
C0610 - Nitrogen, Ammonia Total (as N) - Concentration
1.49
0.028
1 36
mg/I
C0665 - Phosphorus, Total (as P) - Concentration
1.77
0.12
6.7
mg/I
31616 - Coliform, Fecal MF, M-FC Broth,44.5C
1 2.80
1
2420
#/100ml
Renewal Summary — This permit reflects discharge at Outfall 001. DWR updated the following:
• added parameter codes to Section A. (L)
• updated the facility map
• corrected Outfall 001 coordinates to 35.8584670 N,-79.0306350 W [350 51' 30', -790 01' 50"1
• added Electronic Reporting - Discharge Monitoring Reports page [Section A. (5.)].
Stream — Discharge from Nature Trail MHC WWTP for Outfall 001 into Cub Creek [16-41-2-10-(0.5)],
from source to a point 0.7 mile downstream of Chatham County SR 1008, a waterbody classified WS-IV;
NSW located within Subbasin 03-06-05 [RUC: 030300020607] of the Cape Fear River Basin.
The Cub Creek segment [16-41-2-10-(0.5)] listed as "No Data" in the 2014 Integrated Report 305(b).
Compliance History —See attached Compliance History for the period Sep2011-Feb2016. BOD was not
turned on in BIMS. Please see attached BOD data that indicated three (3) exceedances of the daily maximum
limit of 15 mg/L.
Fact Sheet
Renewal 2016 -- NPDES Permit NCO043257
Page 2

IWC Calculations
Facility: Nature Trail MHC WWTP
NC0043257
Prepared By: Derek Denard
Enter Design Flow (MGD): / 0.8
Enter s7Q10 (cfs): 1\/ 0.075
Enter w7Q10 (cfs): 0.2
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
O0IJ
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
0.075
s7Q10 (CFS)
0.075
DESIGN FLOW (MGD)
0.6
DESIGN FLOW (MGD)
0.6
DESIGN FLOW (CFS)
0.93
DESIGN FLOW (CFS)
0.93
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
92.54
IWC (%)
92.54
Allowable Cone. (ug/1)
18
Allowable Conc. (mg/1)
1.1
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0.2
Monthly Average Limit:
2001900ml DESIGN FLOW (MGD)
0.6
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.93
(If DF<331, Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
1.08 Upstream Bkgd (mg/1)
0.22
IWC (%)
82.30
Allowable Conc. (mg/1)
2.1
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Cone > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals); capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/I
4. BAT for Minor Domestics: 2 mg/I (summer) and 4 mg/1(winter)
5. BAT for Major Municipals: 1 mg/I (year-round)
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)
NPDES Server/Current Versions/WLA; TB 1/16/2009

Permit Reviewer Notes - Derek Denard
Permit Number:
Applicant/Facility Name:C L
u - to cl �uC 7✓a/ if 14/
Permit Status:
{NCwG
egional Office: '/�
I pfn
Latitude: 3 s-$ S v q / ^ / • °
Longitude: �� . 03D& 3 j
Facility Class: W
County: C / � /
(� t !r o�
Outfall:
I
Flow: D bG G
%j
Applicant Address:
Facility Address: _
Type of Waste: L /4-1
//
strea Notes
Receiving Stream: /K �( "
C
ream Segment:
lG- - 2—��-��r
Stream Classification: �—
/t/r
Drainage Basin:
CR C
Summer 7Q10 (cfs): _
0 -7
Subbasin: d 3D b>
Winter 7Q10 (cfs): Q
HUCCode: 030c"-7O6c)7
30Q2(cfs):
State Grid:
Average Flow (cfs): Ol
USGS Topo Quad: t
Qr/' in. TVr L
IWC (%):
303 (d): N� �h l�
j
Use:
Notes
47 CWA E-1, [Vr A-e

Corporations Division Page 1 of 1
North Carolina
DEPARTMENT OF THE
i • � r . Elaine :< l�larshalf
secrelary SECRETARYOFSTATE
. PO Box 29622 Raleigh, NC 27626.0622 M9j007.2000 Account
Login
Click Here To: Register
View Document Filings
Corporate Names
Legal: Nature Trail Associates, a California Limited Partnership
Limited Partnerships Information
Sosld:
0885770
Status:
Current -Active
Annual Report Status:
Not Applicable
Citizenship:
Foreign
Date Formed:
1/30/1987
State of Incorporation:
CA
Registered Agent:
Northen, John a
Corporate Addresses
Reg Office: 100 Europa Drive Suite 550
Chapel Hill, NC 27514
Reg Mailing: 100 Europa Drive Suite 550
Chapel Hill, NC 27514
Mailing: 9073 Nemo Street
Los Angeles, CA 90069
http://www.secretary.state.nc.us/Search/profcorp/151449 4/29/2016

cdel
18 January 2016
RECEIVED/NCDEWWR
Mrs. Dina Sprinkle JAN 21 2016
NC DENR/DWQ/Point Source Branch Water quality
1617 Mail Service Center Permitting Section
Raleigh, NC 27699-1617
Re: NPDES Permit Renewal, Nature Trail MHC WWTP NCO043257
Dear Mrs. Sprinkle:
Please accept this renewal package for Nature Trail WWTP. There have
been no changes since our last renewal. We were a little late sending the package
in due to no renewal letter from the state. We realize that it is incumbent that the
permittee renews without prompting but it is the first time in 5 renewal periods
that no letter was forthcoming. We apologize for any delay.
If you have any question pertaining to any aspect of this package, please
contact my office at [phone].
Re ectful ,
att e a
Environmental Director
Nature Trial Associates

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 Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit WC0043257
If you are completing this form in computer use the TAB key or the up - down arrows to moue 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
Nature Trail Associates
Facility Name
Nature Trail MHC WWTP
Mailing Address
10006 Hammock Bend
City
Chapel Hill
State / Zip Code
NC 27517
Telephone Number
919-960-5739
Fax Number
[phone]
e-mail Address
[e-mail]
aol.com
2. Location of facility producing discharge:
Check here if same address as above ❑
Street Address or State Road 326 Nature Trail
City Chapel Hill
State / Zip Code NC 27517
County Chatham
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 The Carlyle Group / Matthew Raynor
Mailing Address 10006 Hammock Bend
City Chapel Hill
State / Zip Code NC / 27517
Telephone Number [phone]
Fax Number [phone]
1 of 3 Form-0 05/08

NPDES APPLICATION - FORM D
For privately owned treatment systems treating 100% domestic wastewaters <1.0 MGD
4. Description of wastewater:
Facility Generating Wastewater(check all that apply):
Industrial
❑
Number of Employees
Commercial
❑
Number of Employees
Residential
®
Number of Homes 200
School
❑
Number of Students/Staff
Other
❑
Explain:
Describe the source(s) of wastewater (example: subdivision, mobile home park, shopping centers,
restaurants, etc.):
Mobile Home Park
Population served: 800
S. Type of collection system
® 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 ® No
7. Name of receiving stream(s) (Provide a map showing the exact location of each outfall):
Cub Creek
S. Frequency of Discharge: ® 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.
Aerated equalization into split sided four plug flow activated sludge chambers in series.
Clarification into post -aeration into chlorination then de -chlorination then discharged
into creek.
2 of 3 Form-D 05108

NPDES APPLICATION - FORM D
For privately owned treatment systems treating 100% domestic wastewaters <1.0 MGD
10. Flow Information:
Treatment Plant Design flow 0.04 MGD
Annual Average daily flow 0.024 MGD (for the previous 3 years)
Maximum daily flow 0.220 MGD (for the previous 3 years)
11. Is this facility located on Indian country?
❑Yes No
12. Effluent Data
Provide data for the parameters Iisted. Fecal Coliform, Temjperature and pH shall be grab samples, for all other
parameters 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.
Parameter
Daity
Maxi Oum
Monthly
Average
Units of
Measurement
Biochemical Oxygen Demand (BODS)
19 (July 2,013)
4.1
Mg/l
Fecal Coliform
2420 (Jur 2014)
3.6
# / 100ml
Total Suspended Solids
11 (Sept. ? 013)
4.3
Mg/l
Temperature (Summer)
27 (Aug 2. 13)
21.5
Celsius
Temperature (Winter)
7.8 (Mar 013)
10.1
Celsius
pH
8.2 (Aug 2014)
17.0
units
13. List all permits, construction approvals and/or applications:
Type Permit Number Type
f
Hazardous Waste (RCRA) NESHAPS (CAA)
UIC (SDWA) Ocean Dumping (MPRSA)
t
NPDES NCO043257 Dredge or fill (Section 404 or CWA)
PSD (CAA) Other
Non -attainment program (CAA)
i
14. APPLICANT CERTIFICATION
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.
Printed rlame of Person Signing
Title
of 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 05108

a
NATURE TRAIL MHC WWTP
Sludge Management Plan
Nature Trail MHC WWTP is a .040MGD, extended aeration, activated sludge
waste treatment plant with 15,000 gallon of aerated sludge storage. Sludge is
aerated and treated with hydrated lime to stabilize it according to EPA 503
regulations. Stabilized sludge is then pumped and hauled to and by Granville
Farms for land application. Please contact Granville Farms for further
information concerning Nature Trail's bio-solids at [phone].