NC0088498_Permit (Issuance)_20140314

NPDES DOCUHENT SCANNING COVER SHEET
NC0088498
Mitchell Bluff Subdivision, Well #1
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File
- Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Permit
History
Document Date:
March 14, 2014
This document is printed on reuse paper - ignore any
content on the resrerse side

ern
NCDENR
. North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
March 14, 2014
Mr. Thomas J. Roberts, President
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision Well #1 WTP
202 Mackenan Ct
Cary, North Carolina 27511
Subject: Issuance of NPDES Permit NC0088498
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision Well #1 WTP
Surry County
Dear Mr. Roberts:
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 changes between this permit and the previous permit include the following:
• Manganese, Zinc and Iron measurement frequency will be reduced to Quarterly.
• Turbidity monitoring twice (2) per month will be added.
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.
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 NPDES permit. [See Special Condition A (3.)] For information on eDMR, registering for
eDMR and obtaining an eDMR user account, please visit the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-6748
Internet:: www.ncwaterauality.orq
An Equal opportunitylAffimiatiye Action Employer

Mr. Roberts
March 14, 2014
Page 2 of 2
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the
following web site:
http://www2.epa.gov/compliance/proposed-npdes-electronic-reporting-rule.
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.
This permit is not transferable except after notifying the Division of Water Resources. The
Division may require permit modification, or revocation and re -issuance. Please note that this
permit does not affect your legal obligation to obtain other permits' required by the Division of
Water Resources, the Division of Land Resources, the Coastal Area Management Act, or other
federal or local governments.
If you have questions, or if we can be of further service, please contact Derek Denard at
[[e-mail]] or call [phone].
lly,
homas A. Reeder
Enclosure: NPDES Permit NC0088498 (Issuance Final)
hc: Central Files
NPDES Program Files
WSRO Files/ Attn: Corey Basinger
ec: ESS/Aquatic Toxicology Unit, Susan Meadows [[e-mail]]

NPDES Permit NC0088498
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
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, the
Aqua North Carolina, Inc.
is hereby authorized to discharge treated wastewater from a facility known as
Mitchell Bluff Subdivision Well #1 WTP
Mitchell Cove Rd, Mt. Airy, NC 28621
Surry County
to receiving waters designated as an unnamed tributary (UT) to the Fisher River, within the Yadkin -Pee
Dee River Basin, in accordance with effluent limitations, monitoring requirements, and other applicable
conditions set forth in Parts I, II, III, and IV hereof.
The permit shall become effective May 1, 2014.
This permit and the authorization to discharge shall expire at midnight on December 31, 2018.
Signed this day March 14, 2014.
mas A. Reeder, Director — ..
ivision of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 5

NPDES Permit NC0088498 .
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 described herein.
Aqua North Carolina, Inc.
is hereby authorized to:
1. continue to operate a greensand water treatment plant with discharge of wastewaters from media
filter backwash, with a design potable flowrate of 0.05184 MGD and a maximum, monthly average
wastewater discharge of 0.00072 MGD, with water and wastewater treatment consisting of;
• greensand filters
• chemical usage consisting of:
o Potassium permanganate and
o Chlorine
o Caustic Soda
located at the Mitchell Bluff Subdivision Well #1 WTP, Mitchell Cove Rd., Elkin, NC 28621, Surry
County; and
2. discharge from said treatment works via Outfall 001 at a location specified on the attached map,
into an unnamed tributary (UT) to the Mitchell River [Stream Segment 12-62-(12.5)J, currently a
Class C waterbody within Subbasin 03-07-02 of the Yadkin -Pee Dee River Basin.
Page 2 of 5

NPDES Permit NC0088498
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge filter backwash via Outfall 001. Such discharges shall be limited
and monitored' by the Permittee as specified below:
'
•l
EF LUENT .:.
ACCTERISTIC
CHAR
[P lRAMETER'CODES]
•
LIMITS.
MONITORING REQUIREMENTS 1
3 1
Monthly
Average,
- . , ,
Daily
Maximum
.. 't .. _
' Measurement .:
Frequency"
...
- Sample
y e 3
r
Sample
?L�ocafion
Flow 2 (MGD)
50050
Monthly
Instantaneo 2
or Estimate
Effluent
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
2/month
Grab
Effluent
Turbidity (NTU)
00070
2/month
Grab
Effluent
Total Residual Chlorine 3 (µg/L)
50060
17 µg/L 3
2/month
Grab
Effluent
pH (su)
00400
Not <6.0 or>9.0
standard units
2/month
Grab
Effluent
Total Fluoride 4 (mg/L)
00951
Quarterly
Grab
Effluent
Total Manganese (µg/L)
01055
Quarterly
Grab
Effluent
Total Zinc 5 (µg/L)
01092
Quarterly
Grab
Effluent
Total Iron (µg/L)
01045
Quarterly
Grab
Effluent
Footnotes:
1. No later than January 26, 2015 begin submitting discharge monitoring reports electronically using
NC DWR's eDMR application system. See Special Condition A. (2.).
2. For instantaneous flow monitoring, the duration of the discharge must be reported in addition
to the total flow.
3. The TRC monitoring requirement applies only if the Permittee backwashes with chlorinated
water (and discharges filter backwash). The Division shall consider TRC effluent values
reported below 50 µg/L to be compliant with the permit. However, the Permittee shall continue
to record and submit all values reported by a North Carolina -certified laboratory method
(including field certified), even if these values fall below 50µg/L.
4. Fluoride shall be monitored if the permitee backwashes with fluoridated finished water.
5. Zinc shall be monitored if the Permitee uses any zinc -based additive in the water treatment
process.
Comments:
Samples shall be taken at the outfall but prior to mixing with the receiving waters.
There shall be no discharge of floating solids or foam in other than trace amounts.
Page 3 of 5

NPDES Permit NC0088498 '
A. (2.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
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 in late 2013.
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 [Supersedes Section D. (2.) and Section E. (5.) (a)1
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 DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
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.
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

NPDES Permit NC0088498
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/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. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes 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 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 ://portal.ncdenr. org/web/wq/admin/bog/ipu/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 false information, including the
possibility of fines and imprisonment for knowing violations." .
3. Records Retention [Supplements Section D. (6.)1
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

Outfall 001
(flows north)
To I-77
Mitchell River
[flows southeast]
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision Well #1 WTP
Receiving Stream:
State Grid/USGS Ouad:
Latitude:
Stream Class:
Drainage Basin:
UT to Mitchell River Stream Segment: 12-62-(12.5)
B 15SE / Elkin North, NC Sub -Basin: 03-07-02
36° 17' 01" N Longitude: 80° 47' 05" W
C HUC: 03040101
Yadkin -Pee Dee River Basin
UT to Mitchell River
[flows north]
Mitchell Cove Rd
Yadkin River
[flows east]
Facility
Location
Scale 1:24,000
North
NPDES Permit NC0088498
Surry County

NORTH CAROLINA
SURRY COUNTY
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly
commissioned, qualified and authorized by law to administer oaths,
personally appeared Ferris W. Simpson who being first duly
sworn, deposes and says: that he (she) is Business Manager
(Publisher or other officer or employee authorized to make affidavit) of
CIVITAS MEDIA, LLC, engaged in the publication of a newspaper known
as MOUNT AIRY NEWS, published, issued, and entered as periodicals
class mail in the city of Mount Airy in said County and State; that he (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 MOUNT AIRY NEWS on the following dates:
Ago. 1r aO/?
and that the said newspaper in which such notice, paper, document or
legal advertisement was published was, at the time of each and every
such publication, a newspaper meeting all of the requirements and
qualifications of Section 1-597 of the General Statutes of North Carolina
and was a qualified newspaper within the meaning of Section 1-597 of
the General Statutes of North Carolina.
This
day of d /L LL41.-
, 2014
Swo
Signature of person making affidavit
to and subscribed before me, this
7
, 2014
My Commission expires: January 15, 2018
BRIDGET HENDERSON
NOTARY PUBLIC
Yadkin County
North Carolina
My Commission Expires January 15, 2018
day of
Raleigh, NC 27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina Environ-
mental Management Commis-
sion proposes to issue a NP-
DES wastewater discharge
permit to the person(s) listed
below. Written comments re-
garding the proposed permit
will be accepted until 30 days
after the publish date of this
notice. The Director of the NC
Division of Water Resources
(DWR) may hold a public hear-
ing should there be a signific-
ant degree of public interest.
Please mail comments and/or
information requests to DWR
at the above address. Inter •
-
ested persons may visit the
DWR at 512 N. Salisbury
Street, Raleigh, NC to review
information on file. Additional
information on NPDES per-
mits and this notice may be
found on our website:
http://portal.ncdenr.org/web/wq
/swp/ps/npdes/calendar, or by
calling [phone]. Cent-
ral Care, Inc. requested renew-
al of permit NC0038822 for its
WWTP/Surry County. Facility
discharges to an unnamed trib-
utary to Stewarts
Creek/Yadkin-Pee Dee River
Basin. Currently ammonia ni-
trogen, fecal coliform and total
residual chlorine are water
quality limited. Aqua North
Carolina, Inc. (of Cary 27511)
applied to renew NPDES per-
mit NC0088536 for the Ban-
nertown Subdivision WTP,
Well #2, Town Lane, Mt Airy
27030, discharging to UT to
Faulkner Creek, Yadkin River
Basin, Surry County. Aqua
North Carolina, Inc., Surry
County, has applied to renew
NPDES permit for the Mitchell
Bluff Subdivision Well #1 WTP
[NC0088498] discharging filter -
backwash wastewater to
Mitchell River, Yadkin -Pee Dee
River Basin. Aqua North Caro-
lina, Inc., Surry County, has
applied to renew NPDES per-
mit for the Windgate Subdivi-
sion Well #1 WTP
(NC0088609) discharging filter
backwash wastewater to Fish-
er River, Yadkin -Pee Dee
River Basin. Aqua North Caro-
lina, Inc. (of Cary) applied to
renew NPDES permit
NC0088528 for the Hillcrest
Subdivision WTP, Well #3,
Lynnwood Dr., Mt Airy 27030,
discharging to UT to Champ —
Creek, Yadkin River Basin,
Surry County. Surry County
Schools requested renewal of
NPDES permit
NC0041947/North Surry High
School WWTP. Facility dis-
charges to Stewarts
Creek/Yadkin-Pee Dee River
Basin. Currently fecal coliform ,
and total residual chlorine are
water quality limited. Surry
County Schools requested re-
newal of NPDES permit
NC0041939/J. Sam Gentry
Middle School WWTP. Facility
discharges to Stewarts
Creek/Yadkin-Pee Dee River
Basin. Currently fecal coliform
and total residual chlorine are
water 'quality limited.
Publish February 7, 2014

Denard, Derek
From: Hudson, Gary
Sent: Monday, January 27, 2014 12:38 PM
To: Denard, Derek
Cc: Basinger, Corey
Subject: RE: NC0088498 Aqua North Carolina - Mitchell Bluff WTP Renewal
Good Afternoon Derek,
The only problem that I noticed was the location is wrong on page 2.
Thanks,
Gary
Gary Hudson
NCDENR-Division of Water Resources
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
[e-mail]
***********************************************************************
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
***********************************************************************
From: Denard, Derek
Sent: Monday, January 27; 2014 12:19 PM
To: Basinger, Corey; Reid, Steve
Cc: Hudson, Gary
Subject: NC0088498 Aqua North Carolina - Mitchell Bluff WTP Renewal
Please find attachments for Aqua North Carolina - Mitchell Bluff WTP NPDES # NC0088498 draft permit and fact
sheet. Please provide your comments, if any, to me via email [[e-mail]] or write to my attention care
of DENR / DWR / NPDES Program no later than March 7, 2014.
Thanks,
Derek
1

Derek C Denard
mental SpedaEst
NCOENRDerisionof WaterResourcfls
Water;ty Permitting Section
Waste•srate8
Conte ance & 6pedted Permitting U it
(4.9)807, 6307
derekdfenard@ncde�rVOlf.
'1617 Mai 5ary ca:Cantar'Asl 5916?NC 74;294617
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
2

DENR / DWR / NPDES
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit NC0088498
Derek Denard, Compliance & Expedited Permitting Unit / 919-807-6307
23Jan2014
_.Facility: Xriformation
Applicant/FailityName
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision- Well #1 WTP
Applicant Adklress
202 Mackenan Ct, Cary, NC 27511
Facility. Address
Mitchell Cove Rd, Elkin, NC 28621
Permitted Flo.* (MGD)
Not limited
Water Plants and Water Conditioning Discharge —filter-backwash
- Greensand WTP System
Facility Class!::
PCNC
Count
Surry
Renewal
Regional
Office
WSRO
Stream Characteristics
Receiving Strum
UT to Mitchell
River
Stream Classification
Stream Segment
[12-62-(12.5)]
Drainage basin
Yadkin -Pee Dee
Summer 7Q.1
cfs)
0.0
Subbasin
03-07-02
Winter 7Q10. (cfs):
0.0
Use Support.
0.0
No, Stream
Segment is not
listed
Average Flowl(cfs)
0.0
State Grid:
B15SE
IWC
100%
USES Togo Quad.
Elkin North, NC
Facility Summary
This facility is a greensand water treatment plant with discharge of wastewaters from media filter
backwash, with a design potable flowrate of 0.018 MGD and a maximum, monthly average wastewater
discharge of 0.00201 MGD. The facility consists of the following water and wastewater treatment units:
four (4) greensand filters, chemical usage consisting of: Potassium permanganate, Chlorine and caustic
soda.
Monthly average FLOW (MGD) — Last 36 months Nov2010-Oct2013:
[Ave 0.00072 MGD; Maximum, Monthly average flow = 0.00072 MGD]
Toxicity — N/A Greensand [per strategy WTP 2009]
For Renewal — This permit reflects discharge at Outfall 001. DWR updated the facility description and
Map; added parameter codes to Section A. (1.); added Electronic Reporting - Discharge Monitoring
Reports page; Manganese, Zinc and Iron measurement frequency will be reduced to Quarterly; and
removed Fluoride monitoring.
Stream — Discharge from WTP for outfall 001 is into an UT to the Mitchell River [Stream Segment 12-
62-(12.5)]. The stream segment is not 303(d) listed.
Fact Sheet
Renewal 2013 -- NPDES Permit NC0036145
Page 1

RPA — A Reasonable Potential Analysis (RPA) was conducted on Zinc, Iron and Fluoride effluent
parameters data because Discharge Monitoring Reports (DMRs) reported concentration above method -
detection levels (MDLs) for the past four and one half (4 1/2) years (JuIy2009-Sept2013). [See attached
RPA summary sheets.]
• Iron showed reasonable potential to violate state water quality standards (WQS). Since Iron has an
action level standard, quarterly monitoring will be maintained.
Fact Sheet
Renewal -- NPDES NC0088498
Page 2

Aqua North Carolina, Inc. - Mitchell BI201150rIDdliAsial MalflAta 135% Probability/95% Confidence
NC0088498 MAXIMUM DATA POINTS = 58
Qw (MGD) = 0.00
1Q1OS (cfs) = 0.00
7Q1OS (cfs) = 0.00
7Q1OW (cfs) = 0.00
30Q2 (cfs) = 0.00
Avg. Stream Flow, QA (cfs) = 0.00
Receiving Stream: UT to Mitchell River
WWTP/WTP Class: PCNC
IWC @ 1Q10S = 100.00%
IWC @ 7Q10S = 100.00%
IWC @ 7Q1OW = 100.00%
IWC @ 30Q2 = 100.00%
IWC @ QA = 100.00%
Stream Class: C
Outfall 001
Qw = 0.00072 MGD
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
PQL
u,
I—
H
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS/ Applied Y2 FAV /
Chronic Standard Acute
R # Det.
Max Pred
Cw
9,352.4
Allowable Cw
Iron
NC
1000 FW
;i..:ll.
54 54
Acute: NO WQS
_ _ ___ _____________
Chronic: 1000.0
28 value(s) > Allowable Cw
__ _
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly Monitoring
in conjunction with TOX Test
9595 FRESHWATER RPA20142, rpa
Page 1 of 1 3/11/2014

Aqua North Carolina, Inc. - Mitchell BlufflirtMlikitiaLIFEMTEN11114L ANALYSIS
NC0088498
Qw (MGD) = 0.00
1 Q 1 OS (cfs) = 0.00
7Q1OS (cfs) = 0.00
7Q1OW (cfs) = 0.00
30Q2 (cfs) = 0.00
Avg. Stream Flow, QA (cfs) = 0.00
Receiving Stream: UT to Mitchell River
WWTP/WTP Class: PCNC
IWC @ 1Q1OS = 100.00%
Iwc @ 7Q1OS = 100.00%
IWC @ 7Q1OW = 100.00%
IWC @ 30Q2 = 100.00%
IWC @ QA = 100.00%
Stream Class: C
Outfall 001
Qw = 0.00072 MGD
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
a
m
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS /
Chronic
Applied
Standard
1/2FAV /
Acute
n
# Det. Max Pred
Allowable Cw
Cw
Iron
NC
1000
FW
µg/L
54
54
20,157.6
Acute: NO WQS
__ _ _______ _ _________
Chronic: 1000.0
28 value(s) > Allowable Cw
________________.___
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Page 1 of 1
NC0088498 2012 RPA-FreshwaterREV.xlsm, rpa
1/23/2014

IWC Calculations
Facility: Aqua North Carolina, Inc. - Mitchell Bluff- Well #1
NC0088498
Prepared By: Derek Denard
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
0.00072
0
0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
Upstream Bkgd (ug/I)
IWC (%)
Allowable Conc. (ug/I)
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
0
0.00072
0.001116
17.0
0
100.00
17
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
1.00 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 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/l (winter)
5. BAT for Major Municipals: 1 mg/I (year-round)
0
0.00072
0.00112
1.0
0.22
100.00
1.0
0
0.00072
0.00112
1.8
0.22
100.00
1.8
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

Freshwater RPA
*II REQUIRED DATA ENTRY
Table 1. Project Information
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
3002 (cfs)
QA (cfs)
1 Q10s (cfs)
Data Source(s)
D CHECK for MODEL
❑ CHECK if HQW or ORW only
Aqua North Carolina, Inc. - Mitchell Bluff Subdivision Well #1 WTP
PCNC
NC0088498
001
0.00072
UT to Mitchell River
C
0.00
0.00
0.00
0.00
0.00
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Name
Type Chronic Modifier Acute
PQL
Units
ww ce
a
•
•
•
in
•
■
■
0
I.
0
•
I.
■
Iron
NC
1000
FW
µg/L
■
■
■
NC0088498 2012 RPA-FreshwaterREV.xlsm, input
1/23/2014

REASONABLE POTENTIAL ANALYSIS
20
Iron
Date Data BDL=1/2DL Results
1 2009 4610 4610 Std Dev. 1751.4307
2 2009 1800 1800 Mean 1696.7593
3 2009 4830 4830 C.V. 1.0322
4 2009 6200 6200 n 54
5 2009 1100 1100
6 2009 2090 2090 Mult Factor = 2.22
7 2009 1170 1170 Max. Value 9080.0 pg/L
8 2009 6200 6200 Max. Pred Cw 20157.6 pg/L
USE ONLY
"PASTE
SPECIAL -
Values WITH
"COPY"
9 2010 942 942
10 2010 1180 1180
11 2010 2430 2430
12 2010 504 504
13 2010 1790 1790
14 2010 2930 2930
15 2010 481 481
16 2010 647 647
17 2010 445 445
18 2010 614 614
19 2010 680 680
20 2010 1610 1610
21 2011 1060 1060
22 2011 2540 2540
23 2011 1030 1030
24 2011 1460 1460
25 2011 1740 1740
26 2011 650 650
27 2011 917 917
28 2011 874 874
29 2011 1840 1840
30 2011 1140 1140
31 2011 9080 9080
32 2011 838 838
33 2012 1370 1370
34 2012 970 970
35 2012 990 990
36 2012 1560 1560
37 2012 680 680
38 2012 848 848
39 2012 660 660
40 2012 351 351
41 2012 732 732
42 2012 408 408
43 2012 296 296
44 2012 618 618
45 2013 1260 1260
46 2013 1200 1200
47 2013 776 776
48 2013 739 739
49 2013 881 881
50 2013 5390 5390
51 2013 1460 1460
52 2013 664 664
53 2013 3410 3410
54 2013 940 940
NC0088498 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/23/2014

Denard, Derek
From: Denard, Derek
Sent Monday, January 27, 2014 12:50 PM
To: Hudson, Gary
Subject: RE: NC0088498 Aqua North Carolina - Mitchell Bluff WTP Renewal
Good eyel Thanks Gary. Obviously, I used the other Aqua North Carolina as a shell. I will be sending a draft of it shortly.
Derek
From: Hudson, Gary
Sent: Monday, January 27, 2014 12:38 PM
To: Denard, Derek
Cc: Basinger, Corey
Subject: RE: NC0088498 Aqua North Carolina - Mitchell Bluff WTP Renewal
Good Afternoon Derek,
The only problem that I noticed was the location is wrong on page 2.
Thanks,
Gary
Gary Hudson
NCDENR-Division of Water Resources
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
[e-mail]
***********************************************************************
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
***********************************************************************
From: Denard, Derek
Sent: Monday, January 27, 2014 12:19 PM
To: Basinger, Corey; Reid, Steve
Cc: Hudson, Gary
Subject: NC0088498 Aqua North Carolina - Mitchell Bluff WTP Renewal
Please find attachments for Aqua North Carolina - Mitchell Bluff WTP NPDES # NC0088498 draft permit and fact
sheet. Please provide your comments, if any, to me via email [[e-mail]] or write to my attention care
of DENR / DWR / NPDES Program no later than March 7, 2014.
Thanks,
1

Derek
Derek C Deriard
'.EreviNittrnernal S eaaftst:
..NCOSAn WiteiitesotgFes
,wareryPenOidiig
se
wa tewa*LOMOdi
• Cowa Eipalted PeniuttkOwit
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
2

t
AlIUA.
June 19, 2013
Aqua North Carolina, Inc.
4163 Sinclair Street
Denver, NC 28037
NCDENR / Division of Water Quality/ NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-0167
Re: Application for Permit Renewal
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision Well #1
NPDES No. NC0088498
Surry County
Gentlemen:
www.aquanorthcarolina.com
Enclosed are three (3) copies of the completed application Form C- WTP. This
submittal includes the necessary attachments for your office to renew the subject
permit.
If you need any additional information or assistance, please feel free to
contact our Regional Compliance Manager, Michael A. Melton @ 704-489-9404
ext. 57238 or by e-mail at [e-mail].
Since
J
Thomas). Ro • erts
President & COO
Enc
An Aqua America Company

r
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number
NC0088498
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
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Aqua North Carolina, Inc.
Mitchell Bluff Subdivision- Well # 1
202 Mackenan Ct
Cary
NC / 27511
[phone]
[phone]
TJ Roberts®aquaamerica. com
2. Location of facility producing discharge:
Check here if same as above El
Street Address or State Road Mitchell Cove Road
City
State / Zip Code
County
Elkin
NC / 28621
Surry
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
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
Aqua North Carolina, Inc.
4163 Sinclair Street
Denver
NC / 28037
[phone]
[phone]
4. Ownership Status:
Federal ❑ State ❑
5. Type of treatment plant:
Private ® Public ❑
Page 1 of 3
C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
❑ 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)
Groundwater well
7. Describe the treatment process(es) for/the raw water:
Greensand filtration using potassium iiermanganate. Chlorine added for disinfection and
caustic.soda added for pH adjustment.
t,
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Wastewater discharge is the backwash of the green sand filters. Discharge rate is
approximately 720 gallons per day.
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: 2 Duration: Approx. 20 minutes
11. Plant design potable flowrate .05184 MGD
Backwash or reject flow 0.00072 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unamed tributary to Mitchell River ( Yadkin- Pee Dee River Basin)
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Page 2 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Potassium permanganate
Chlorine
Caustic soda
14. Is this facility located on Indian country? (check one)
Yes ❑ No El
15. Additional Information:
• Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
• Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
> New applicants must contact a permit coordinator with the NCDENR Customer
Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
• Analyses of source water collected
• Engineering Alternative Analysis
• Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
/11 m/u ,s �J , �pO 73 /Z&.! ///6/l/T 6 eO
Pri n s e of Perso itle / r
ignature of Appli n
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 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 3 of 3
C-WTP 03/05