NC0041220_Draft Permit_20200323

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S.DANIEL SMITH NORTH CAROLINA
Director EnWroneiental Quality
March 23, 2020
Dr.Jeff Church,Assistant Superintendent
Caldwell County Schools
1914 Hickory Blvd SW
Lenoir,NC 28645
Subject: Draft NPDES Permit NC0041220
Oak Hill Elementary School WWTP
Grade I Biological WPCS
Caldwell County
Dear Dr.Church:
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please review
this draft carefully to ensure thorough understanding of the requirements and conditions it contains.
There are several changes in the draft from the existing permit. These changes are summarized below.
• Regulatory Citations—Language has been added throughout the permit to provide regulatory
citations for permit requirements.
• Electronic Reporting—Permit language has been updated to be consistent with the finalization of
federal requirements for electronic reporting.
• Parameter Codes—Codes have been updated as necessary in the table in Section A. (1).
• Total Residual Chlorine(TRC)—Footnote language in the table in Section A.(1.)has been
updated to explain compliance with the TRC limit consistent with current language used in other
permits.
• Location Map—The map in the previous permit had an inaccurate location. This draft permit
includes an updated map locating the facility and outfall.
The NPDES standard conditions(Parts II,III,and IV)that are a part of the permit are not included in this
draft document(cover,map,and Part I).The conditions are the same as in your current permit.The latest
version is available at https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
Concurrent with this notification the Division is publishing a notice in a newspaper having general
circulation in the Columbus County area soliciting public comments on this draft permit. Please provide
any written comments you may have to me no later than 30 days after receipt of this draft permit.
Q North Carolina Department of Environmental Quality I Division of Water Resources 1 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617
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Depveneal w 6n..mnrneN o..; 919.707.9000

Dr. Jeff Church
Oak Hill Elementary Draft Permit
Page 2
Following the 30-day public comment period,the Division will review all pertinent comments and take
appropriate action prior to issuing a fmal permit.If you have questions concerning this draft permit,
please contact me by email at [e-mail]. Currently I am working out of the office,so
if you would like to have a call about any issues in the draft,please send me an email and we can set that
up.
Sincerely,
3444 04441t--
Bradley Bennett
Compliance and Expedited Permitting Unit
cc: NPDES Files
Asheville Regional Office/Water Quality-electronic
Operator Certification Program/Maureen Kinney-electronic

Draft Permit NC0041220
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provision of North Carolina General Statute 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
Caldwell County Schools
are hereby authorized to discharge wastewater from a facility located at the
Oak Hill Elementary School WWTP
4603 Oak Hill School Road
Lenoir
Caldwell County
to receiving waters designated as Mountain Run Creek in subbasin 03-08-32 of the Catawba 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
This permit and authorization to discharge shall expire at midnight on March 31, 2025.
Signed this day
S. Daniel Smith,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Draft Permit NC0041220
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.
Caldwell County Schools
are hereby authorized to:
1. Continue to operate an existing 0.003 MGD wastewater treatment facility with the following
components:
• Septic tank [3000 gallons] with dosing
• Sand filters
• Distribution Box
• Tablet chlorination with contact chamber [500 gallons]
• Inline tablet dechlorination
• Cascade aerator
This facility is located at the Oak Hill Elementary School WWTP at 4603 Oak Hill School Road
near Lenoir in Caldwell County.
2. Discharge from said treatment works at the location specified on the attached map into Mountain
Run Creek, currently classified C waters in subbasin 03-08-32 [HUC 030501010901] in the
Catawba River Basin.
Page 2 of 7

Draft Permit NC0041220
PART I.
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Biological Water Pollution Control System [15A NCAC 08G.0302]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored
by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Average Measurement Sample Sample
[Parameter Codes] Daily Maximum Frequency Type Location
Flow 50050 0.003 MGD Weekly Instantaneous Influent or
Effluent
BOD,5-day,20°C C0310 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
NH3 as N C0610 Monitor and Report(mg/L) Month. Grab Effluent
Dissolved Oxygen 00300 Monitor and Report(mg/L) Weekly Grab Effluent
Fecal Coliform 31616 200/100 mL 400/100mL 2/Month Grab Effluent
(geometric mean)
Total Residual Chorine 2 50060 28µg/L 2/Week Grab Effluent
Temperature 00010 Monitor and Report(°C) Weekly Grab Effluent
pH 00400 Between 6.0 and 9.0 standard units 2/Month Grab Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR system[see A.(2)].
2. 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 laboratory
(including field certified),even if these values fall below 50 µg/l.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7

Draft Permit NC0041220
A. (2) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on
December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)]
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. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting requirements may
be granted and 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
following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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 applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
Page 4 of 7

Draft Permit NC0041220
• 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(l)(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:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/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 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.nc.gov/about/divisions/water-resources/edmr
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f
Draft Permit NC0041220
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
Olt
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://deq.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:
"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."
5. 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 6 of 7

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Oak Hill Elementary School Facility
Caldwell County Schools Location t','
Receiving Stream: Mountain Run Creek Stream Segment: 11-58-3 (not to scale)
Drainage Basin: Catawba River Basin Sub-Basin: 03-08-32
Latitude: 35°54'15" Longitude: 81°25'06"
Stream Class: C HUC: 030501010901 NORTH NPDES NC004 12 20
USGS Quad: D13NW/Kings Creek,NC Caldwell Count'
Page 7 of 7