NC0050849_Fact Sheet_20230331

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require full Fact
Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc)
that can be administratively renewed with minor changes, but can include facilities with more complex
issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance
concerns).
Basic Information for Expedited Permit Renewals
Permit Writer / Date
Siying Chen 11/9/2022
Permit Number
NCO050849
Facility Name / Facility Class
Silverdale Elementary WWTP / WW-1
County / Regional Office
Onslow / WiRO
Basin Name / Sub -basin number
White Oak / 03-05-01
Receiving Stream / HUC
Calebs Creek / 030203010203
Stream Classification / Stream Segment
C / 20-15
Does permit need Daily Maximum NH3 limits?
Already resent
Does permit need TRC limits/language?
Already resent
Does permit have toxicity testing? IWC % if so
No
Does permit have Special Conditions?
No
Does permit have instream monitoring?
Yes — Temperature and D.O.
Is the stream impaired on 303(d) list)?
No
Any obvious compliance concerns?
Three violation and enforcement cases during the
permit cycle.
Any permit mods since last permit?
Added WWTP classification
Updated eDMR requirements
Updated parameter code
Updated outfall ma
New expiration date
7/31/2027
Comments on Draft Permit?
No comment received
Most Commonly Used Expedited Language:
• 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream is listed
as an impaired waterbody on the North Carolina 303(d) Impaired Waters List. Addressing
impaired waters is a high priority with the Division, and instream data will continue to be
evaluated. If there is noncompliance with permitted effluent limits and stream impairment can
be attributed to your facility, then mitigative measures may be required".
Fact Sheet for Permit Renewal
November 2022 -- NPDES Permit NCO050849 - Page 1

Section 1. Facility Overview:
This facility is a minor facility (flow < 1 MGD) discharging 100% domestic wastewater with a design
capacity of 0.003 MGD. This WWTP utilizes the following treatment components:
• Septic tank
• Dosing tank
• Recirculating surface sand filter
• Chlorination
• Chlorine contact chamber
• Dechlorination with contact chamber
• Flow meter
Section 2. Compliance History (October 2017 — November 2022):
• Two NOVs for fecal coliform limit violation in October 2017 and January 2018.
• One enforcement case for ammonia nitrogen limit violation in May 2019.
Section 3. Changes from previous permit to draft:
• Added facility grade in A. (1).
• Updated eDMR footnote in A. (1) and language in A. (2).
• Updated parameter code for dissolved oxygen in A. (1).
• Updated outfall map.
Section 4. Comments received on draft permit:
• No comment received on draft permit.
Section 5. Changes from draft to final:
• No change to final permit.
Fact Sheet for Permit Renewal
November 2022 -- NPDES Permit NCO050849 - Page 2

An official website of NC 0
NORTH CAROLINA
Environmental Quality
0
Notice of Intent to Issue a NPDES
Wastewater Permit NC0050849 Silverdale
Elementary School WWTP
0 Thu, Feb 9 2023, 11:59am - Wed, Mar 8 2023, 12:59pm
Public Notice
North Carolina Environmental Management Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a NPDES Wastewater Permit NC0050849 Silverdale Elementary
School WWTP The North Carolina Environmental Management Commission proposes to
issue a NPDES wastewater discharge permit to the person(s) listed below. Written comments
regarding 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 hearing
should there be a significant degree of public interest. Please mail comments and/or

information requests to DWR at the above address. Interested persons may visit the DWR at
512 N. Salisbury Street, Raleigh, NC 27604 to review the information on file. Additional
information on NPDES permits and this notice may be found on our website:
https: deq.nc.gvZpublic-notices-hearings,or (https: deq.nc.gov/public-notices-
hearings,or) by calling [phone]. The Onslow County Board of Education (PO Box 99,
Jacksonville, NC 28541) has applied for renewal of NPDES permit NCO050849 for the
Silverdale Elementary School WWTP in Onslow County. This permitted facility discharges
treated wastewater to Calebs Creek in the White Oak River Basin. Currently, BOD, Ammonia
Nitrogen, Fecal Coliform, Total Residual Chlorine, and Dissolved Oxygen are water quality
limited. This discharge may affect future allocations in this portion of the White Oak River
Basin. (Public Notice will run in the Jacksonville Daily News on 2/9/23.)
Send Comments To:
NCDEQ/DWR/NPDES
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
Comment Period Ends: 3/8/23
CONTACT INFO
Sylvia Chen, Environmental Specialist
�. 919-707-3619 (tei:919-707-3619).
[e-mail](mailto:siying.chen(@ncdenr.gQv).
RELATED CONTENT
• Draft Permit and Related Documents
.(https:/ledocs.deq.nc.gov/WaterResources/Browse.aspx?
id=536168&dbid=0&repo=WaterResources)_

NH3/TRC WLA Calculations
Facility: Silverdale Elementary WWTP
PermitNo. NC0050849
Prepared By: Siying Chen
Enter Design Flow (MGD): 0.003
Enter s7Q10 (cfs): 0
Enter w7Q10 cfs : 0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
0
s7Q10 (CFS)
0
DESIGN FLOW (MGD)
0.003
DESIGN FLOW (MGD)
0.003
DESIGN FLOW (CFS)
0.00465
DESIGN FLOW (CFS)
0.00465
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
IWC (%)
100.00
Allowable Conc. (ug/1)
17
Allowable Conc. (mg/1)
1.0
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0
Monthly Average Limit:
200/100ml DESIGN FLOW (MGD)
0.003
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.00465
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
1.00 Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
Allowable Conc. (mg/1)
1.8
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/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

MONITORING REPORT(MR) VIOLATIONS for:
Report Date:
11/09/22 Page
1 of 6
Permit:
nc0050849
MRS Betweel 0
- 2017 and11 - 2022
Region:
%
Violation Category:%
Program Category:
Facility Name: %
Param Nam(%
County:
%
Subbasin: %
Violation Action: %
Major Minor:
%
PERMIT: NCO050849
FACILITY: Onslow County Schools/Board of Education - Silverdale
COUNTY: Onslow
REGION: Wilmington
Elementary School WWTP
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
10-2017
001
Effluent
Chlorine, Total Residual
10/12/17
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
10-2017
001
Effluent
Chlorine, Total Residual
10/19/17
2 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
11 -2017
001
Effluent
Chlorine, Total Residual
11/02/17
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
11 -2017
001
Effluent
Chlorine, Total Residual
11/09/17
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
11 -2017
001
Effluent
Chlorine, Total Residual
11/23/17
2 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
11 -2017
001
Effluent
Chlorine, Total Residual
11/30/17
2 X week
ug/I
17
26
52.9
Daily Maximum
No Action, BPJ
Exceeded
12-2017
001
Effluent
Chlorine, Total Residual
12/21/17
2 Xweek
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
12-2017
001
Effluent
Chlorine, Total Residual
12/28/17
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
01 -2018
001
Effluent
Chlorine, Total Residual
01/04/18
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
01 -2018
001
Effluent
Chlorine, Total Residual
01/25/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
02-2018
001
Effluent
Chlorine, Total Residual
02/08/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
02-2018
001
Effluent
Chlorine, Total Residual
02/22/18
2 X week
ug/I
17
24
41.2
Daily Maximum
No Action, BPJ
Exceeded
03-2018
001
Effluent
Chlorine, Total Residual
03/08/18
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
03-2018
001
Effluent
Chlorine, Total Residual
03/15/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
04-2018
001
Effluent
Chlorine, Total Residual
04/05/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/09/22 Page 2 of 6
Permit: nc0050849 MRS Betweel 0 - 2017 and11 - 2022 Region: % Violation Category:% Program Category: %
Facility Name: % Param Nam(% County: % Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO050849
FACILITY: Onslow County Schools/Board of Education - Silverdale
Elementary School WWTP
COUNTY: Onslow
REGION: Wilmington
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
04-2018
001
Effluent
Chlorine, Total Residual
04/19/18
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
04-2018
001
Effluent
Chlorine, Total Residual
04/26/18
2 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
05-2018
001
Effluent
Chlorine, Total Residual
05/24/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
05-2018
001
Effluent
Chlorine, Total Residual
05/31/18
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
08-2018
001
Effluent
Chlorine, Total Residual
08/16/18
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
09-2018
001
Effluent
Chlorine, Total Residual
09/13/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
10-2018
001
Effluent
Chlorine, Total Residual
10/04/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
11 -2018
001
Effluent
Chlorine, Total Residual
11/15/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
11 -2018
001
Effluent
Chlorine, Total Residual
11/29/18
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
12-2018
001
Effluent
Chlorine, Total Residual
12/13/18
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
12-2018
001
Effluent
Chlorine, Total Residual
12/27/18
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
01 -2019
001
Effluent
Chlorine, Total Residual
01/17/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
01 -2019
001
Effluent
Chlorine, Total Residual
01/31/19
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
02-2019
001
Effluent
Chlorine, Total Residual
02/07/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
02-2019
001
Effluent
Chlorine, Total Residual
02/14/19
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
02-2019
001
Effluent
Chlorine, Total Residual
02/28/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/09/22 Page 3 of 6
Permit: nc0050849 MRS Betweel 0 - 2017 and11 - 2022 Region: % Violation Category:% Program Category: %
Facility Name: % Param Nam(% County: % Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO050849
FACILITY: Onslow County Schools/Board of Education - Silverdale
Elementary School WWTP
COUNTY: Onslow
REGION: Wilmington
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
03-2019
001
Effluent
Chlorine, Total Residual
03/28/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
05-2019
001
Effluent
Chlorine, Total Residual
05/23/19
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
05-2019
001
Effluent
Chlorine, Total Residual
05/30/19
2 X week
ug/I
17
27
58.8
Daily Maximum
No Action, BPJ
Exceeded
06-2019
001
Effluent
Chlorine, Total Residual
06/20/19
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
09-2019
001
Effluent
Chlorine, Total Residual
09/05/19
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
09-2019
001
Effluent
Chlorine, Total Residual
09/19/19
2 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
09-2019
001
Effluent
Chlorine, Total Residual
09/26/19
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
10-2019
001
Effluent
Chlorine, Total Residual
10/17/19
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
10-2019
001
Effluent
Chlorine, Total Residual
10/24/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
10-2019
001
Effluent
Chlorine, Total Residual
10/31/19
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
11 -2019
001
Effluent
Chlorine, Total Residual
11/14/19
2 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded
11 -2019
001
Effluent
Chlorine, Total Residual
11/28/19
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
12-2019
001
Effluent
Chlorine, Total Residual
12/05/19
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
12-2019
001
Effluent
Chlorine, Total Residual
12/12/19
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
12-2019
001
Effluent
Chlorine, Total Residual
12/26/19
2 X week
ug/I
17
22
29.4
Daily Maximum
No Action, BPJ
Exceeded
01 -2020
001
Effluent
Chlorine, Total Residual
01/09/20
2 X week
ug/I
17
21
23.5
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/09/22 Page 4 of 6
Permit: nc0050849 MRS Betweel 0 - 2017 and11 - 2022 Region: % Violation Category:% Program Category: %
Facility Name: % Param Nam(% County: % Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO050849
FACILITY: Onslow County Schools/Board of Education - Silverdale
Elementary School WWTP
COUNTY: Onslow
REGION: Wilmington
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
01 -2020
001
Effluent
Chlorine, Total Residual
01/16/20
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
01 -2020
001
Effluent
Chlorine, Total Residual
01/23/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
01 -2020
001
Effluent
Chlorine, Total Residual
01/30/20
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
02-2020
001
Effluent
Chlorine, Total Residual
02/13/20
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
02-2020
001
Effluent
Chlorine, Total Residual
02/25/20
2 X week
ug/I
17
23
35.3
Daily Maximum
No Action, BPJ
Exceeded
02-2020
001
Effluent
Chlorine, Total Residual
02/27/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
03-2020
001
Effluent
Chlorine, Total Residual
03/12/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
04-2020
001
Effluent
Chlorine, Total Residual
04/16/20
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
04-2020
001
Effluent
Chlorine, Total Residual
04/30/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
05-2020
001
Effluent
Chlorine, Total Residual
05/12/20
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
06-2020
001
Effluent
Chlorine, Total Residual
06/25/20
2 X week
ug/I
17
18
5.9
Daily Maximum
No Action, BPJ
Exceeded
08-2020
001
Effluent
Chlorine, Total Residual
08/27/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
11 -2020
001
Effluent
Chlorine, Total Residual
11/26/20
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded
12-2020
001
Effluent
Chlorine, Total Residual
12/10/20
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
02-2021
001
Effluent
Chlorine, Total Residual
02/25/21
2 X week
ug/I
17
19
11.8
Daily Maximum
No Action, BPJ
Exceeded
03-2021
001
Effluent
Chlorine, Total Residual
03/18/21
2 X week
ug/I
17
20
17.6
Daily Maximum
No Action, BPJ
Exceeded

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/09/22 Page 5 of 6
Permit: nc0050849 MRS Betweel 0 - 2017 and11 - 2022 Region: % Violation Category:% Program Category: %
Facility Name: % Param Nam(% County: % Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO050849 FACILITY: Onslow County Schools/Board of Education - Silverdale COUNTY: Onslow REGION: Wilmington
Elementary School WWTP
Limit Violation
MONITORING VIOLATION UNIT OF CALCULATED %
REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
06-2021
001
Effluent
Chlorine, Total Residual
06/10/21
2 X week
ug/I
17
21
23.5
Daily Maximum
Exceeded
06-2021
001
Effluent
Chlorine, Total Residual
06/24/21
2 X week
ug/I
17
19
11.8
Daily Maximum
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/12/21
2 X week
ug/I
17
19
11.8
Daily Maximum
Exceeded
08-2021
001
Effluent
Chlorine, Total Residual
08/19/21
2 X week
ug/I
17
18
5.9
Daily Maximum
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/02/21
2 X week
ug/I
17
19
11.8
Daily Maximum
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/09/21
2 X week
ug/I
17
21
23.5
Daily Maximum
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/16/21
2 X week
ug/I
17
18
5.9
Daily Maximum
Exceeded
09-2021
001
Effluent
Chlorine, Total Residual
09/23/21
2 X week
ug/I
17
23
35.3
Daily Maximum
Exceeded
10-2021
001
Effluent
Chlorine, Total Residual
10/14/21
2 X week
ug/I
17
21
23.5
Daily Maximum
Exceeded
12-2021
001
Effluent
Chlorine, Total Residual
12/23/21
2 X week
ug/I
17
18
5.9
Daily Maximum
Exceeded
03-2022
001
Effluent
Chlorine, Total Residual
03/03/22
2 X week
ug/I
17
19
11.8
Daily Maximum
Exceeded
04-2022
001
Effluent
Chlorine, Total Residual
04/28/22
2 X week
ug/I
17
20
17.6
Daily Maximum
Exceeded
07-2022
001
Effluent
Chlorine, Total Residual
07/21/22
2 X week
ug/I
17
19
11.8
Daily Maximum
Exceeded
10-2017
001
Effluent
Coliform, Fecal MF, MFC
10/13/17
2 X month
#/100ml
400
1,700
325
Daily Maximum
Broth, 44.5 C
Exceeded
01 -2018
001
Effluent
Coliform, Fecal MF, MFC
01/17/18
2 X month
#/100ml
400
1,600
300
Daily Maximum
Broth, 44.5 C
Exceeded
05-2019
001
Effluent
Nitrogen, Ammonia Total (as
05/31/19
2 X month
mg/I
2
3.47
73.5
Monthly Average
N) - Concentration
Exceeded
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
Proceed to NOV
Proceed to NOV
Proceed to
Enforcement Case

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 11/09/22 Page 6 of 6
Permit: nc0050849 MRS Betweel 0 - 2017 and11 - 2022 Region: % Violation Category:% Program Category: %
Facility Name: % Param Nam(% County: % Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO050849
FACILITY: Onslow County Schools/Board of Education - Silverdale
COUNTY: Onslow
REGION: Wilmington
Elementary School WWTP
Monitoring Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED %
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over
VIOLATION TYPE
VIOLATION ACTION
08 -2018
001
Effluent
Chlorine, Total Residual
08/04/18
2 X week
ug/I
Frequency Violation
No Action, Facility
Reporting Error
08 -2018
001
Effluent
Temperature, Water Deg.
08/04/18
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
08 -2019
001
Effluent
Temperature, Water Deg.
08/03/19
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
08 -2019
001
Effluent
Temperature, Water Deg.
08/31/19
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
11 -2019
001
Effluent
Temperature, Water Deg.
11/30/19
5 X week
deg c
Frequency Violation
No Action, BPJ
Centigrade
10 -2020
001
Effluent
Temperature, Water Deg.
10/31/20
5 X week
deg c
Frequency Violation
No Action, Facility
Centigrade
Reporting Error
03 -2022
001
Effluent
Temperature, Water Deg.
03/05/22
5 X week
deg c
Frequency Violation
No Action, BIMS
Centigrade
Calculation Error
Reporting Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED %
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT VALUE Over
VIOLATION TYPE
VIOLATION ACTION
07-2021
08/31/21
Late/Missing DMR
No Action, BPJ
07-2022
08/31/22
Late/Missing DMR
No Action, Facility
Reporting Error

Permit Enforcement History by Permit
Permit: NC0050849
Region: Wilmington
Penalty
Assessment Penalty
Case Approved Amount
Facility: Silverdale Elementary School WWTP
County: Onslow
Remission Enforcement
Enforcement Request Conference
Costs Damages Received Held
Owner:
EMC Collection
Hearing Memo Sent
Held To AGO
Onslow County Schools/Board of Education
Has
Payment
Total Paid Balance Due Plan
Case
Closed
LV-2003-0830
12/31/03
$250.00
$48.40
$298.40
$0.00
No
02/05/04
LV-2004-0022
01/08/04
$250.00
$48.40
$298.40
$0.00
No
02/05/04
LV-2004-0388
08/19/04
$250.00
$44.93
$294.93
$0.00
No
09/02/04
LV-2005-0002
01/04/05
$250.00
$45.94
$295.94
$0.00
No
02/08/05
LM-2008-0008
03/26/08
$275.00
$67.39
$342.39
$0.00
No
04/22/08
LV-2009-0142
05/08/09
$800.00
$43.05
$0.00
$843.05
$0.00
No
06/08/09
LV-2009-0190
06/11/09
$1,150.00
$43.05
$0.00
$1,193.05
$0.00
No
08/07/09
LV-2009-0220
07/16/09
$250.00
$43.05
$0.00
$293.05
$0.00
No
08/13/09
LV-2009-0420
12/01/09
$450.00
$57.50
$0.00
12/11/09
01/26/10
$407.50
$0.00
No
03/03/10
LV-2010-0057
02/17/10
$250.00
$57.50
$0.00
$307.50
$0.00
No
03/12/10
LV-2010-0071
03/15/10
$750.00
$57.50
$0.00
$807.50
$0.00
No
05/19/10
LV-2013-0001
01/02/13
$250.00
$169.55
$0.00
$419.55
$0.00
No
01/25/13
LV-2019-0215
09/24/19
$250.00
$137.75
$0.00
10/14/19
$387.75
$0.00
No
03/26/20
Total Cases:
Total Penalties:
13
$5,425.00
$864.01
$6,289.01
Total Penalties after
$6,189.01
$0.00
$6,189.01

From: Daniel Grav
To: Chen, Siyina
Cc: Tammy Miller; King. Morelia s; Weaver. Charles
Subject: [External] RE: NPDES Permit Issuance - Silverdale Elementary School WWTP NCO050849
Date: Friday, March 31, 2023 3:34:22 PM
Attachments: imaae001.ona
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to Report Spam.
Good afternoon,
Received and thank you.
Daniel Gray
Maintenance Director
Onslow County Schools
P.O.Box 991200 Broadhurst Rd
Jacksonville, NC 28540
910.455.2211 Extension 71510
Cell: 910.581.0467 1 Fax:[phone]
From: Chen, Siying <[e-mail]>
Sent: Friday, March 31, 2023 12:11 PM
To: Daniel Gray <[e-mail]>
Cc: Tammy Miller<[e-mail]>; King, Morella s <morella.sanchez-
[e-mail]>; Weaver, Charles <[e-mail]>
Subject: NPDES Permit Issuance - Silverdale Elementary School WWTP NCO050849
Inbound Email Notice
This email was generated outside of the Onslow County School system. Do not open any
attachments or click on any links unless you are certain of the content. If you are unsure,
please forward the email to IT.HelpDeskPonslow.k12.nc.us
Hi Mr. Gray,
Attached is the final NPDES permit renewal for Silverdale Elementary School WWTP (NC0050849).
The permit will be effective on May 1, 2023.
Please respond to this email confirming that you received the attached document, were able to
open and view the document and have saved/printed a copy for your records.
Thank you!
Siying (Sylvia) Chen (she/her/hers)
Environmental Specialist 11, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]

siving.chen(@ncdenr.gov
Q:>
NORTH CAROLINA -
Department of Environmental Quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.

-U
Modified Applicabon Form 2A
NPDES Permit Number
Faci ty Na
NCO050849
SILVERDALE ELEMENTARY
Modified March 2021
crunni
Form
NC Department of Environmental Quaky - Application for NPDES Permit to Discharge Wastewater
MINOR SEWAGE FACILITIES (Before completing this form, please read the instructions. Failure to follow
NPDES
the instructions gIR result in denial of the lication.
SECTION 1. BASIC
APPLICATION INFORMATION s• . r
1.1
Facility name
SILVERDALE ELEMENTARY SCHOOL
Mailing address (street or P.O. box)
PO BOX 99
City or town
State
ZIP code
o
JACKSONVILLE
NC
28541
a
€
Contact name (first and last)
Titie
Phone number
Email address
DANIEL GRAY
MAINTENANCE DIRECTOR
[phone]
[e-mail]
Location address (street, route number, or other specific identifier) ❑ Same as mailing address
w
U
841 SMITH ROAD
City or town
State
ZIP code
MAYSVILLE
NC
28555
1.2
Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission ❑ No
requirements for new dischargers.
1.3
Is applicant different from entity listed under Item 1.1 above?
❑ Yes ❑ No 4 SKIP to Item 1.4.
Applicant name
ONSLOW COUNTY BOARD OF EDUCATION
Applicant address (street or P.O. box)
PO BOX 99
oCity
or town
State
ZIP code
5
JACKSONVILLE
NC
28541
Contact name (first and last)
Title
Phone number
Email address
n
DANIEL GRAY
MAINTENANCE DIRECTOR
[phone]
[e-mail]
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑✓ Owner ❑ Operator ❑ Both
1.5
To which entity should the NPDES permitting authority send correspondence? (Check only one response.)
El Facility ❑� Applicant ❑ Facility and applicant
(they are one and the same)
1.6
Indicate below any existing environmental permits. (Check all that apply and print or type the corresponding permit
number for each.
€
Existing Environmental Permits
o
NPDES (discharges to surface
RCRA hazardous waste
UIC (underground injection
owater)
control)
NCO050849
Is
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
❑ NESHAPs (CAA)
w
m
w
❑ Ocean dumping (MPRSA)
❑ Dredge or fill (CWA Section
❑ Other (specify)
4D4)
Page 1

NPDES Permit Number
FaaGry Name
Modified AppliWlion Form 2A
NCO050849
SILVERDALE ELEMENTARY
Modified March 2021
crunni
__
1.7
Provide the collections stem information requested below for the treatment works.
Municipality
Population
Collection System Type
Status
Served
Served
indicatepercentage)Ownership
15 % separate sanitary sewer
❑ Own ❑ Maintain
Z643
n a %combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
e
% separate sanitary sewer
❑ Own ❑ Maintain
%combined storm and sanitary sewer
❑ Own ❑ Maintain
5
❑ Unknown
❑ Own ❑ Maintain
n%separate
sanitary sewer
❑ Own ❑ Maintain
%combined storm and sanitary sewer
❑ Own ❑ Maintain
E
❑ Unknown
❑ Own ❑ Maintain
a�
% separate sanitary sewer
❑ Own ❑ Maintain
% combined storm and sanitary sewer
❑ Own ❑ Maintain
rn
c
❑"OwnOTotalPopulation
643
0
)"Unknown
Served
nitary Sewer System
Total percentage of each type of
sewer line in miles
<o.oD1 /0
n/a /°
Z
1.8
Is the treatment works located in Indian Country?
c
U
❑ Yes No
w
1.9
Does the facility discharge to a receiving water that flows through Indian Country?
c
❑ Yes El No
1.10
Provide design and actual Flow rates in the designated spaces.
Design Flow Rate
003 mgd
Annual Average Flow Rates Actual
Two Years Aga
Last Year
This Year
L
o
.00054 mgd
.00088 mgd
.0012 mgd
mLL
Maximum Daily Flow Rates Actual
Two Years Ago
Last Year
This Year
.00z mgd
.00z mgd
oolz mgd
1.11
Provide the total number of effluent discharge points to waters of the State of North Carolina by type,
Total Number of Effluent Discharge Points by Type
n d
Constructed
La
Treated Effluent
Untreated Effluent
Combined Sewer
Bypasses
Emergency
u
Overflows
Overflows
1
n/a
n/a
n/a
n/a
Paget

NPDES Permit Number
Facikty Name
Modified Applicabon Form 2A
NCOOSOS49
SILVERDALE ELEMENTARY
crunni
Modified March 2021
Outfalls Other Than to Waters of the Stake of North Carolna
1.12
Does the POTW discharge wastewater to basins, ponds, or other surface impoundments that do not have outlets
for discharge to waters of the State of North Carolina?
❑ Yes Q No 4 SKIP to Item 1.14.
1.13
Provide the location of each Surface impoundment and associated discharge information in the table below.
Surface Impoundment Location and Discharge Data
Avenge Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(chi one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
❑ Conlin Louis
gpd
a
❑ Intermittent
c°
1.14
Is wastewater applied to land?
❑ Yes ❑ No -+ SKIP to Item 1.16.
c
1.15
Provide the land application site and discharge data requested below.
n
n
Land Application Site and Discharge Data
Avenge Daily Volume
Continuous or
Location
Size
Intermittent
EM
Applied
check one
❑ Continuous
c
acres
gp d
❑ Intermittent
ve
acres
gp d
❑ Continuous
O
❑ Intermittent
E
acres
d
❑ Continuous
W
gp
❑ Intermittent
m
1 16
Is effluent transported to another facility for treatment prior to discharge?
0
El Yes � No 4 SKIP to Item 1.21.
1 A 7
Describe the means by which the effluent is transported (e.g., tank truck, pipe).
1.18
Is the effluent transported by a party other than the applicant?
❑ Yes ❑ No 4 SKIP to Item 1.20.
1.19
Provide information on the transporter below.
Trans orter Data
Entity name
Mailing address (street or P.O. box)
City or town
State
ZIP code
Contact name (first and last)
Title
Phone number
Email address
Page 3

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO050849
SILVERDALE ELEMENTARY
crunni
Modified March 2021
1.20
In the table below, indicate the name, address, contact information, NPDES number, and average daily Flow rate of the
receiving facility.
Receiving cllfty Data
Facility name
Mailing address (street or P.O. box)
Y
c
City or town
State
ZIP code
0
U
i
Contact name (first and last)
Title
0
t
Phone number
Email address
NPDES number of receiving facility (if any) ❑ None
Average daily flow rate mgd
e
e
1.21
Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do
0
not have outlets to waters of the State of North Carolina (e.g., underground percolation, underground injection)?
t
❑ Yes ❑/ No 4 SKIP to Item 1.23,
0
1.22
Provide information in the table below on these other disposal methods.
Information on Other Dla oral Methods
Disposal
Location of
Size of
Annual Average
Continuous or Intermittent
Method
Disposal She
p
Disposal Site
po
Daily Discharge
check one
( )
Y
Description
Volume
Y
w
acres
9Pd
❑ Continuous
❑ Intermittent
0
❑ Continuous
acres
gPd
❑ Intermittent
acres
gpd
❑ Continuous
❑ Intermittent
1.23
Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)? (Check all that apply.
Y
Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
m❑
Discharges into marine waters (CWA ❑ Water quality related effluent limitation (CWA Section
Section 301(h)) 302(b)(2))
cc
0 Not applicable
1.24
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works
the responsibility of a contractor?
Q Yes ❑ No +SKIP to Section 2.
1.25
Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1
Contractor 2
Contractor 3
Contractor name
m
(company name
Stanley Buck
Waste Management
Mailing address
Y
`c
street or P.O. b0%
1745 Belgrade-Swansboro Rd.
1515 Pony Farm Rd.
`o
City, slate, and ZIP
Maysville, NC 28555
Jacksonville, NC 28540
code
Contact name (first and
0asl
Stanley Buck
Sandi Griffith
Phone number
[phone]
[phone]
Email address
[e-mail]
[e-mail]
Operational and
maintenance
contracted ORC
as need basis pump sewer
responsibilities of
spring and or winter
contractor
Page

NPDES Permit Number Facility Name Modified Application Form 2A
NC0050849 SILVERDALE ELEMENTARY Modified March 2021
runni
o Outfalls to Waters of the Slate of North Carolina
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
c
❑ Yes ❑v No 4 SKIP to Section 3.
`0
2.2
Provide the treatment works' current average daily volume of inflow
Average Daily Volume of Inflow and Infiltration
c
and infiltration.
gP d
�
Indicate the steps the facility is taking to minimize inflow and infiltration.
v
c
w
rc
c
t
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
m
specific requirements.)
o �
❑ Yes ❑ No
E
2.4
Have you attached a process flow diagram or schematic to this application that contains all the required information?
e 1°
(See instructions for specific requirements.)
u. c
❑ Yes ❑ No
2.5
Are improvements to the facility scheduled?
❑ Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
m
1.
c
d
E
n
2.
E
`o
S
3.
u
N
4.
L
a
2.6
Provide scheduled or actual dates of completion for improvements.
Scheduled
or Actual Dates of Com lotion for Im rovements
E
Scheduled
Affected
Begin
End
Begin
Attainment of
>
0
Improvement
Outfalls
Construction
Construction
Discharge
Operational
(from above)
(list ouHall
number
(MM/DD"YY)
(MM/DDNYYY)
(MM/DDPlYYY)
Level
MM/DDDDN
a
1.
2,
3.
4.
2,7
Have appropriate permits/clearances concerning other federalrslate requirements been obtained? Briefly explain your
response.
❑ Yes ❑ No ❑ None required or applicable
Explanation.
Page 5

NPDES Permit Number Facility Name Modified Applicabon Form 2A
NCO050849 51LVERDALE ELEMENTARY Modified March 2021
CfUI1/ll
SECTION 3. INFORMATION ON EFFLUENT DISCHARGES 1
3.1 Provide the following information for each outfall. (Attach additional sheets if you have more than three outfalls.)
Outfall Number i
Outfall Number—
Outfall Number_
State
North Carolina
a
County
Onslow,
0
City or town
Maysville
0
c
3
Distance from shore
1 ft.
ft.
ft.
a
z
Depth below surface
n/a ft
ft.
ft.
C3
Average daily flow rate
.00078 mgd
mgd
mgd
Latitude
34° 46' 40" N
Longitude
77 12 21" W
3.2
Do any of the ouffalls described under Item 3.1 have seasonal or periodic discharges?
❑ Yes ❑ No 4 SKIP to Item 3.4,
Y
q
3.3
If so, provide the following information for each applicable outfall.
s
x
Outfall Number
Outfall Number
Outfall Number
Number of times per year
z
discharge occurs
a
Average duration of each
`o
discharge (specify units
°e
Average flow of each
mgd
mgd
mgd
discharge
w
in
Months in which discharge
occurs
3.4
Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑ Yes Q No 4 SKIP to Item 3.6.
d
3.5
Briefly describe the diffuser type at each applicable outfall.
n
Outfall Number
Outfall Number
Outfall Number
0
ai
3 6
Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
d
one or more discharge points?
3 =
Q Yes ❑ No 4SKIP to Section 6,
Page 6

NPOES Permit Number
Facility Name
Modified Application Form 2A
NCO050849
SILVERDALE ELEMENTARY
crunni
Modified March 2021
3.7
Provide the receiving water and related information if known for each outfall.
Outfall Number [
Outfall Number
Outfall Number
Receiving water name
Caleb Creek
Name of watershed, river,
e
or stream system
While Oak River
.�
U.S. Soil Conservation
o
Service 14-digit watershed
c
code
Name of state
3
managemenUriver basin
North caroling
c
�
U.S. Geological Survey
8-digit hydrologic
03020301
cataloging unit code
Critical low flow (acute)
n/a cfs
cfs
cfs
Critical low flow (chronic)
n/a cfs
cfs
cfs
Total hardness at critical
mglL of
mg/1-of
mg/L of
low now
"/a CaCO3
CaCO3
CaCO3
3.8
Provide the following information describing the treatment provided for dischar es from each outfall.
Outfall Number [
Outfall Number_
Outfall Number_
Highest Level of
O Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
O Secondary
❑ Secondary
❑ Secondary
❑ Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
c
o
n
Design Removal Rates by
_
u
Outfall
n/a
Y
Y
c
BODs or CBOD,
n/a %
%
Y
E
E
TSS
n/a %
%
%
m Not applicable
El Not applicable
❑ Not applicable
Phosphorus
0 Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
%
Other (specify)
m Not applicable
❑ Not applicable
❑ Not applicable
Page 7

NPDES Permit Number
Facility Name
Modified Application Form 2A
NC0050849
SILVERDALE ELEMENTARY
Modified March 2021
crunni
3.9
Describe the type of disinfection used for the effluent from each outfall in the table below. If disinfection varies by
season, describe below.
y
Chlorine
Y
C
C
O
C.0
`o
Outfall Number 1
Outfall Number
Outfall Number
_
_
Disinfection type
Y
Chlorine
Y
Y
O
Seasons used
Y
all seasons
E
Dechlorination used?
❑ Not applicable
❑ Not applicable
❑ Not applicable
Q Yes
❑ Yes
❑ Yes
❑ No
❑ No
❑ No
3.10
Have you completed monitoring for all Table A parameters and attached the results to the application package?
❑ Yes Q No
3,11
Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
❑ Yes Q No 4 SKIP to Item 3.13.
3.12
Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receivinq water near the dischar a points.
Outfall Number _
OutfalM bet
OutfallNumber_
Acute
Chronic
Acute
Chronic
Acute
Chronic
Y
q
Number of tests of discharge
a
Z
water
FNumber
of tests of receiving
_
water
Y
W
3.14
Does the POTW use chlorine for disinfection, use chlorine elsewhere in the treatment process, or otherwise have
reasonable potential to discharge chlorine in its effluent?
Q Yes 4 Complete Table B, including chlorine. ❑ No -* Complete Table B, omitting chlorine.
3.15
Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package?
❑ Yes Q No
Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
3,18
attached the results to this application package?
El Yes No additional sampling required by NPDES
Q
ermittin authorit .
Page

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO050849
SILVERDALE ELEMENTARY
crunni
Modified March 2021
3.19
Has the POTW conducted either (1) minimum of four quarterly WET tests for one year preceding this permit application
or (2) at least four annual WET tests in the past 4.5 years?
❑ Yes ❑ No 4 Complete tests and Table E and SKIP to
Item 3.26.
3.20
Have you previously submitted the results of the above tests to your NPDES permitting authority?
❑ Yes ❑ No 4 Provide results in Table E and SKIP to
Item 3.26.
3.21
Indicate the dates the data were submitted to your NPDES permitting authority and provide a summary of the results.
Datil Submitted
Summary of Results
M
v
0
c
C
O
ca
�
3.22
Regardless of how you rovided our WET testing data to the NPDES permitting authorit did an of the tests result in
9 Y P Y 9 P 9 Y Y
om
toxicity?
c
❑ Yes ❑ No 4 SKIP to Item 3.26.
F
3.23
Describe the cause(s) of the toxicity
c
m
E
W
3.24
Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No 4 SKIP to Item 3.26.
3.25
Provide details of any toxicity reduction evaluations conducted.
3.26
Have you completed Table E for all applicable outfalis and attached the results to the application package?
El Yes 0 Not applicable because previously submitted
information to the NPDES permitting authoritv.
Page 9

NPDES Permit Number Facility Name Modified Applicator, Form 2A
NC0050849 SILVERDALE ELEMENTARY Modred March 2021
SECTION
6. CHECKLIST
1 1
In Column 1 below, mark the sections of Form 2A that you have completed and are submitting with your application. For
6.1
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to provide attachments.
Column 7
Column 2
O Section 1: Basic Application
❑ wl variance request(s) ❑ wl additional attachments
Information for All Applicants
❑ Section 2: Additional
wl topographic map ❑ wl process flow diagram
Information
❑ cal additional attachments
© wl Table A ❑ wl Table D
O Section 3: Information on
© wl Table B ❑ wl additional attachments
Effluent Discharges
E
❑ wl Table C
'A)
Section 4: Not Applicable
0
Section 5: Not Applicable
e
m
U
e
W
Section 6: Checklist and
0
❑ w/ attachments
Certification Statement
a
s
6.2
Certification Statement
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 fine
and imprisonment for knowing violations.
Name (print or type first and last name)
Official title
Daniel Gray
Maintenance Director
Signature
Date signed
ri
Page 10

O c
so
SO
[913
M
v
O
J �
2 c
c N
Q 2
m
p
b
�
O
M
O pp
O
O
E E
E
w
2 N
c
wm
N
N
In
JI
N
L
w
9
93
p
Z
W
O
O
o0
m
-
Q
O
b
O
O
N
m
p0
O
m
L
r
c
7
a
E
is
c
E
rl
E
w
ZE
%
O
o
O
O
Q
C
•D
Q1
b
Q
a
N
�-
E
w
c
=o
E
o
m
�
E
N
x v
m
3
v
o
p❑
0
m r
0
N
t O O
tp
- rnE
N
E
o.
E
o.
E
yp
m
v
a

'
so
o❑
o❑
❑❑
❑❑
❑o
❑❑
❑❑
Oa
�
J
� c
A
W Y
a
�
O
o
O
m
O
V
O W
Y
Y
Y
E
ry
E
2 ul
3
m
G
L
W
_
E
m
E
C
g
•
a
m
•
�
e
�n
QI
N
m
m
_O
_T
W
G
E
E
m
�
C
N
G
U
�
c
�
o
C
N
a
N
O
X
N
O
N
y
>
E
o m
on
m
a
c
c c
7 d
c
n `o
O U
c
� U
O y
n a
0 0
N �
T C
N �
C p
m o
m Y
a
o c
t0 N
Y
� O
LL O
U Y
� L
� c
� N
N �
� U
O O
0_ d
n
� c
a � E
o m
� � v
U1 N
E N m
y LL U
m U m
L
a � 3
m � m
U C N
� W N
d N N
y C C
O
U L
j y U
N C N
N N O
a
y O-oo
U O C
� U
E O C
D7 N v�
� U �
o �
N
d
U m L
U U
� L m
LL o m
0_
m C � y O
a

Onslow County Schools/ Board of Education Facility
Silverdale Elementary School WWTP Location x
Latitude: 34' 46' 40N Sub -Basin: 03-05-01 (not to scale)
Longitude: 77112' 21" W River Basin: White Oak
Receiving Stream: Calebs Creek Stream Class: C A IO,1�=County
No. N00050849
/v r(

Permit NCO050849
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PF.RMTT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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
Onslow County Schools/Board of Education
is hereby authorized to discharge wastewater from a facility located at the
Silverdale Elementary School WWTP
841 Smith Road
Maysville
Onslow County
to receiving waters designated as Calebs Creek in the White Oak River Basin
in accordance with effluent limits, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective October 1, 2017.
This permit and authorization to discharge shall expire at midnight on July 31, 2022.
Signed this day August 15, 2017.
S. Jay Zimmerman, P.G.
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NCO050849
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.
The Onslow County Board of Education
is hereby authorized to:
1. Continue to operate an existing 0.003 MGD wastewater treatment system with the following
components:
♦ Septic tank
♦ Dosing tank
♦ Recirculating surface sand filter
♦ Chlorination
♦ Chlorine contact chamber
♦ Dechlorination with contact chamber
♦ Flow meter
The facility is located northwest of Silverdale at the Silverdale Elementary School, 841
Smith Road in Onslow County.
2. Discharge from said treatment works at the location specified on the attached map into
Calebs Creek, classified C waters in the White Oak River Basin.
Page 2 of 6

Permit NCO050849
Part I.
A. (1.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS
[I SA 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 treated wastewater from outfall 001. Such
discharges shall be limited and monitored5 by the permittee as specified below:
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Daily
Unit of
Measurement
Sample Type
Sample
Parameter Code
Average
Maximum
Measure
Frequency
Location'
Flow, in conduit or thru treatment plant 50050
0.003
MGD
Weekly
Instantaneous
Influent or
Effluent
BOD, 5-Day (20 Deg. C) C0310
16.0
24.0
mg/L
2 / Month
Grab
Effluent
Total Suspended Solids C0530
30.0
45.0
mg/L
2 / Month
Grab
Effluent
Ammonia Nitrogen - Summer C0610
2.0
10.0
mg/L
2 / Month
Grab
Effluent
Ammonia Nitrogen - Winter C0610
4.0
20.0
mg/L
2 / Month
Grab
Effluent
Coliform, Fecal MF, M-FC Broth, 44.5C 31616
200
400
#/100ml
2 / Month
Grab
Effluent
(geom.mean)
Chlorine, Total Residua12 50060
17
pg/L
2 / Week
Grab
Effluent
Temperature, Water Deg. Centigrade 00010
deg. C
Daily
5 / week
Grab
Effluent
Dissolved Oxygen3 C0300
mg/L
Weekly
Grab
Effluent
pH4 - 00400
S.U.
2 / Month
Grab
Effluent
Temperature, Water Deg. Centigrade 00010
deg. C
Weekly
Grab
Upstream &
Downstream
Dissolved Oxygen - 00300
mg/L
Weekly
Grab
Upstream &
Downstream
Winter: November 1 - March 31
Summer: April 1 - October 31
Footnotes:
1. Upstream: 50 feet above the discharge point; Downstream: at NCSR 1434.
2. The Division shall consider all effluent TRC values reported below 50 pg/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 pg/L.
3. The minimum daily Dissolved Oxygen effluent concentration shall not be less than 5.0 mg/L.
4. The pH shall not be less than 6.0 standard units (s.u.) nor greater than 9.0 s.u.
5. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR
system, [see A (2.)].
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 6

Permit NCO050849
A. (2.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 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.
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 / 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 4 of 6

Permit NCO050849
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
• 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:
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.
Page 5 of 6

Permit NCO050849
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
http: / /deg.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.1 (b) and Supersedes Section B.
11. d
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: / /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
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.)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 122.411.
Page 6 of 6