NC0088676_Draft Permit_20170809

„
Water Resources
Environmental Quality
August 9, 2017
Mr. John Mullis, Town Administrator
Town of Norwood
P.O. Box 697
Norwood, NC 28128
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
Subject: Draft NPDES Permit NCO088676
Town of Norwood WTP, PC -1
650 Allenton Street, Norwood 28128
Stanly County
Dear Mr. Mullis:
In response to your request to renew the subject NPDES permit, the Division of Water Resources (DWR or
the Division) hereby transmits this draft for your review and comment. Please review this document to assure
your understanding of the permit limits and monitoring conditions, and to correct errors, if any.
The Division understands that you have made no significant changes to your facility since the last perms
renewal. We have made the following updates to your previous permit.
1. The facility map has been updated.
2. Regulatory citations have been added.
3. In accordance with water treatment permitting strategy, quarterly Total Fluoride monitoring has
been added because this facility utilizes fluonde.
4. Total Manganese and Iron monitoring has been removed because the EPA approved removal of NC
aquatic life standard as part of 2007-2016 Triennial review. Therefore, there are no limits to compare
monitoring data for these parameters.
5. In accordance with established freshwater standards for turbidity, for lakes and reservoirs not
designated as trout waters, a monthly average limit of 25 NTU and a daily maximum limit of 25
NTU have been added including the following footnote:
➢
Turbidity - Effluent turbidity shall not cause receiving -stream turbidity to exceed 25
NTU. If background turbidity naturally exceeds 25 NTU, the effluent shall not cause
background turbidity to increase. Any discharge exceeding this permit limit will require
sufficient instream sampling (upstream and/or downstream) to verify compliance
(effluent vs. background). [NCAC 02B. 0211(21)]
6. Effluent and upstream quarterly monitoring for Total Hardness has been added. Effluent hardness
sampling should be performed in conjunction with sampling for hardness dependent metals
(Copper) The Permittee shall sample instream hardness, upstream of the facility's discharge. The
sample shall be representative of the hardness in the receiving stream. Please see discussion
below for more information.
7. In the absence of a model that would indicate the dilution for Lake Tillery, whole effluent toxicity
(WET) has been changed to Chronic WET testing (Cenodaphma dubia) 7 -day pass/fail test at 90%.
See condition A. (2.).
State of North Carolina I Environmental Quality
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-707-9000

Mr. Mullis
August 9, 2017
Page 2 of 2
The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Committee (EMC) on November 13, 2014. The US EPA subsequently approved
the WQS revisions on April 6, 2016 with some exceptions. The NC Division of Water Resources NPDES
Permitting Unit is required to implement the new dissolved metal standards in all permits public noticed after
April 6, 2016.
The new standards for most metals include acute standards. The freshwater standards for several metals are
expressed as the dissolved form of the metals, and seven metals have hardness -dependent equations. As a
result, the NPDES Permitting Unit will need site-specific effluent hardness data and instream hardness data,
upstream of the discharge, for each facility monitoring these metals in order to calculate permit
limitations. Effluent hardness and instream hardness sampling, upstream of the discharge, has been added to
this permit at a monitoring frequency of quarterly. See Section A. (1.) Effluent Limitations and Monitoring
Requirements.
Concurrent with this notification, the Division will solicit public comment on this draft by publishing a notice
in newspapers having circulation in the general Stanly County area, as required by the NPDES Program.
Please provide your comments, if any, to me via email [[e-mail]] or write to my attention
care of DEQ / DWR / NPDES Program no later than September 8, 2017. Your written comments are
welcome but not mandatory.
Following the mandatory 30 -day public comment period, the Division will review all pertinent comments on
your permit draft, and take appropriate action prior to issuing your NPDES permit final. If you have questions
concerning this draft, please e-mail me or call my direct line [phone].
Sincerely,
Derek Denard, Environmental Specialist
Compliance & Expedited Permitting Unit
Division of Water Resources, NCDEQ
Enclosure: NPDES Permit NC0088676 (renewal DRAFT)
he NPDES Program Files
ec MRO / Corey Basinger [corey basinger@ncdenr gov]
MRO / Robert Scheller [robert scheller@nc&nr gov]
Wastewater Operator Certification Group / Maureen Kinney [Maureen Kinney@ncdenr gov]
Aquatic Toxicology Branch / Susan Meadows [susan.meadows@ncdenr gov]
Aquatic Toxicology Branch / Cindy Moore [cindy a moore@ncdenr gov]
DWR/MRO/Pubhc Water Supply / Clinton Cook [Clinton cook@ncdenr gov]
John Mullins, Town Administrator, Town ofNorwood [John mulles@norwoodgov com]

NPDES Permit NCO088676
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, the
Town of Norwood
is hereby authorized to discharge wastewater from a facility located at the
Town of Norwood Water Treatment Plant (WTP)
650 Allenton Street, Norwood 28128
Stanly County
to receiving waters designated as the Pee Dee River [Lake Tillery] within the Yadkin -Pee Dee 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 , 2017.
This permit and authorization to discharge shall expire at midnight on , 2022.
Signed this day , 2017.
S. Jay Zimmerman, P.G., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Pagel of 8

NPDES Permit NCO088676
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.
Town of Norwood
is hereby authorized to:
1. continue operating wastewater treatment facilities to produce potable water using WTP
conventional technology [coagulation, flocculation, sedimentation, and filtration] generating
filter -backwash discharge of 0.032 MGD from media filter backwash and sedimentation basins
with a design potable flowrate of 2 MGD;
• settling basin
• holding tank
• lift station [supernatant decant pumped to WWTP]
• sludge -drying beds [holding -tank residuals]
• potential chemical impacts to receiving stream [only if current non -discharge
reverts to surface discharge]
o fluoride
o poly -orthophosphate
o sodium hydroxide (NaOH)
o chlorine
these facilities located at the Town of Norwood Water Treatment Plant (WTP), 650 Allenton
Street, Norwood, Stanly County; and
2. after notifying the Division of Water Resources' Morrisville Regional Office writing 30 days in
advance of commencing surface discharge to Waters of the State,
3, discharge from said treatment works via Outfall 001, at the location specified on the attached
map, into the Pee Dee River [Lake Tillery - Stream Index 13-(1)], a waterbody currently
classified WS -IV; B; CA waters within Subbasin 03-07-08 [HUC: 030401040203] of the
Yadkin -Pee Dee River Basin.
Page 2 of 8

NPDES Permit NCO088676
PART I
A. (L) EFFLUENT LIMITATIONS 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 expiration, the
Permittee is authorized to discharge filter backwash from outfall 001. Such discharges shall be
limited, monitored and reported' by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS'
Monthly
Daily
Measurement
Sample
Sample
CHARACTERISTIC
[PARAMETER CODES]
Average
Maximum
Frequency
Type
Location
Flow (MGD) 2
50050
Instantaneous 2
Recording
Effluent
Total Suspended Solids (TSS) (mg/1)
C0530
30 mg/I
45 mg/1
2/Month
Grab
Effluent
Turbidity (NTU) 3
00070
25 NTU
25 NTU
2/Month
Grab
Effluent
pH (su)
00400
Not < 6 0 or > 9 0
2/Month
Grab
Effluent
standard units
Total Residual Chlorine (µg/1) 4
50060
17 µg/14
2/Month
Grab
Effluent
Total Fluoride (mg/1)
00951
Quarterly
Grab
Effluent
Hardness -Total as
5
00900
Monitor & Report
Quarterly
Grab
Effluent
[CaCO3 or (Ca + Mg)] (mg/1)
s
Hardness -Total as
Hardness
6
00900
Monitor & Report
Quarterly
Grab
Upstream
or (Ca + (mg/1)
Total Copper (µg/1) 5
01042
Quarterly
Grab
Effluent
Total Aluminum (µg/1)
01105
Quarterly
Grab
Effluent
Total Nitrogen (mg/1) 7
C0600
Monitor & Report
Quarterly
Grab
Effluent
Total Phosphorus (mg/1)
C0665
Monitor & Report
Quarterly
Grab
Effluent
Acute WET Testing 8
TGP3B7
Quarterly
Grab
Effluent
Footnotes:
1. The Permittee shall begin submitting Discharge Monitoring Reports electronically using NC DWR's
eDMR application system. See Condition A (3.).
2. For instantaneous flow monitoring, the duration of the discharge must be reported in addition to the total
flow.
3. Turbidity — Effluent turbidity shall not cause receiving -stream turbidity to exceed 25 NTU. If background
turbidity naturally exceeds 25 NTU, the effluent shall not cause background turbidity to increase. Any
discharge exceeding this permit limit will require sufficient instream sampling (upstream and/or downstream)
to verify compliance (effluent vs. background)." [NCAC 02B. 0211(21)]
4 The Division shall consider all effluent total residual chlorine 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 laboratory (including field certified), even if these values fall
below 50 µ/L.
Page 3 of 8

NPDES Permit NC0088676
5. Effluent hardness sampling should be performed in conjunction with sampling for hardness dependent
metals (Copper)
6 The Permittee shall sample mstream hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream.
7. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total
Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
8. Chronic WET testing (Cenodaphnia dubia) 7 -day pass/fail test at 90% in January, April, July and October.
See condition A. (2.).
Conditions:
• 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 4 of 8

NPDES Permit NCO088676
A. (2.) CHRONIC TOXICITY PASS/FAIL MONITORING ONLY (QUARTERLY)
[15A NCAC 02B .0500 et seq.]
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90%. The testing shall be
performed as a Ceriodaphnia dubia 7 -day pass/fail test The tests will be performed during the months of
January, April, July and October. These months signify the first month of each three month toxicity
testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge
below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR -1) for the month in which it was performed, using the parameter code TGP313.
Additionally, DWR Form AT -1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days
after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the
waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form
indicating the facility name, permit number, pipe number, county, and the month/year of the report with the
notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences
Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately Upon submission of a valid test, this monthly test requirement will revert
to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last
day of the month following the month of the initial monitoring
Page 5 of 8

NPDES Permit NCO088676
A. (3.) 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 cr supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requir-,ments
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) intemet 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 / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMF_ 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.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when appl-cable:
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports; and
Clean Water Act (CWA) Section 316(b) Annual Reports.
Page 6 of 8

NPDES Permit NC0088676
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: http•//www2.epa.gov/compliance/final-national-pollutant-discharge-elimmation-
s sty em-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
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.//deq ne.gov/about/divisions/water-resources/edmr
4. 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 11,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part 11, 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 -
Page 7 of 8

NPDES Permit NC0088676
htti)-Hdeq.nc.gov/about/divisions/water-re.sources/ed=
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 WELL BE
ACCEPTED:
"I certify, underpenalty 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 "
5. 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 8 of 8

1
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