WQ0035207_Final Permit_20200327

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
March 27, 2020
ROBERT N. ROTH — TECHNICAL SERVICES MANAGER
SYNAGRO CENTRAL, LLC
284 BOGER ROAD
MOCKSVILLE, NORTH CAROLINA 27028
Subject: Permit No. WQ0035207
Synagro Central DCAR
Attachment A Certification
Davie County
Dear Mr. Roth:
In accordance with your permit minor modification request received January 24, 2020, we are
forwarding herewith a modified Attachment A certified March 27, 2020, to Synagro Central, LLC for the
subject residuals management program.
Modifications to the subject Attachment A are as follows: Cone Denim treatment plant is exempt
from pathogen and vector attraction reduction monitoring; updated footnote 6 to include pathogen reduction
exemption.
The modified Attachment A shall be effective from the date of certification until February 28, 2021
(i.e., expiration date of the current permit), shall void Attachment A of Permit No. WQ0035207 issued
November 13, 2015 that was previously certified on September 19, 2019, and shall be subject to the
conditions and limitations as specified therein, as well as those specified in the above -referenced permit.
Please replace Attachment A of Permit No. WQ0035207 that was certified on September 19, 2019 with the
modified Attachment A. Please note that the Permittee shall submit a renewal application no later
than September 1, 2020.
If any parts, requirements or limitations contained in this certification are unacceptable, the
Permittee has the right to request an adjudicatory hearing upon written request within 30 days following
receipt of this permit. This request shall be in the form of a written petition, conforming to Chapter 150B
of the North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Otherwise, this certification shall be final and binding.
If you need any additional information concerning this matter, please contact Ranveer Katyal at
[phone] or ranveer.katyaIAncdenr.gov.
Sincerely,
<T�11�
S. Daniel Smith, Director
Division of Water Resources
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NOHTN [R:3(J!JNA
Oeparhnanl o<Envlmmm�nlai 9uality 919.707.4000

Mr. Robert N. Roth
March 27, 2020
Page 2 of 2
cc: Davie County Health Department (Electronic Copy)
Winston-Salem Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

ATTACHMENT A — APPROVED RESIDUAL SOURCES
Synagro Central, LLC
Certification Date: March 27, 2020
Permit Number: WQ0035207 Version: 2.7
Monitoring
Monitoring
Monitoring
Approved
Permit
Biological
Maximum
Frequency for
Frequency for
Frequency for
Mineraliza
Owner
Facility Name
County
Number
Residuals
Dry Tons
Non -hazardous
Metals and
Pathogen &
tion Rate
per Year'
Characteristics
Nutrients s, 5
Vector Attraction
z
Reductions 1,5
Greenville Water
L.B. Stovall WTP
Out of State (SC)
SCG644033
No
300
Annually
Annually
None
-
Charlotte Water
Lee S. Dukes WTP
Mecklenburg
01-60-010
No
300
Annually
Annually
None
-
Charlotte Water
Walter M. Franklin WTP
Mecklenburg
01-60-010
No
3,000
Annually
See Table Below
None
-
Town of Pittsboro
Town of Pittsboro WTP
Chatham
03-19-015
No
318
Annually
Annually
None
-
City of Dunn
City of Dunn WTP
Harnett
03-19-010
No
350
Annually
See Table Below
None
City of Reidsville
Reidsville WTP
Rockingham
NCO046345
No
300
Annually
Annually
None
Cone Mills Denim
Cone Denim Treatment Plant
Guilford
NCO047384
No
2,650
Annually
See Table Below
None
-
Brunswick County
Hood Creek WTP
Brunswick
NCO057533
No
1,000
Annually
See Table Below
None
-
Dept. of Water Resources
Tuckertown WTP
Stanly
NCO075701
No
300
Annually
Annually
None
-
Piedmont Triad Regional
John F. Kime WTP
Randolph
NCO087866
No
1,600
Annually
See Table Below
None
-
Water Authority
Pender County Utilities
Pender County WTP
Pender
NCG590000
No
316
Annually
Annually
None
-
City of Greensboro
Lake Townsend WTP
Guilford
NCG590017
No
2,000
Annually
See Table Below
None
-
City of Philadelphia
Philadelphia Renewable
Out of State
PAG-070012
Yes
15,000
Annually
See Table Below
See Table Below
0.3
Biofuels
Town of Franklin
Town of Franklin WTP
Macon
PWS01001-57
No
300
Annually
Annually
None
-
City of Durham
Brown WTP
Durham
PWS 03-32-
No
1,500
Annually
See Table Below
None
-
010A
City of Durham
Williams WTP
Durham
PWS 03-32-
No
See Footnote
NIA
NIA
None
-
010B
7
Town of Mooresville
Town of Mooresville WTP
Iredell
PWS005-49-
No
300
Annually
Annually
None
-
Total
29,534
1. Maximum Dry Tons per Year is the amount of residuals approved for land application from each permitted facility.
2. Analyses to demonstrate that residuals are non -hazardous (i.e., TCLP, ignitability, reactivity, and corrosivity) as stipulated under permit Condition IV.2.
3. Testing of metals and nutrients as stipulated under permit Condition IV.3.
4. Analyses of pathogen and vector attraction reductions as stipulated under permit Condition IV.4.
5. Monitoring frequencies are based on the actual dry tons applied per year using the table below, unless specified above.
WQ0035207 Version 2.7 Attachment A Page l of 2

ATTACHMENT A — APPROVED RESIDUAL SOURCES
Synagro Central, LLC
Dry Tons Applied
Monitoring Frequency
Dry Tons Applied (metric tons)
(short tons per year)
(40 CFR 503 and 15A NCAC 02T
.1111 c
< 290
< 319
Once per year (Annually)
> 290 to < 1,500
> 319 to < 1,650
Once per quarter (4 x Year)
> 1,500 to < 15,000
> 1,650 to < 16,500
Once per 60 days (6 x Year)
> 15,000
> 16,500
Once per month (12 x Year)
Certification Date: March 27, 2020
Permit Number: WQ0035207 Version: 2.7
6. Class A water treatment plant residuals are exempt from meeting the pathogen reduction requirements and the vector attraction reduction requirements in Condition IVA, provided they are not
mixed with residuals that have been generated during the treatment of domestic wastewater, the treatment of animal processing wastewater, or the biological treatment of industrial wastewater. The
Class A water treatment plant residuals must be treated and processed in a manner as not to meet the definition of "Biological Residuals" as defined in 15A NCAC 02T .1102(6).
7. Williams WTP residuals are taken to Brown WTP in Durham, where they are mixed, dried, and processed.
If no land application events occur during a required sampling period (e.g., no land application occur during an entire year when annual monitoring is required), then no sampling data is
required during the period of inactivity. The annual report shall include an explanation for missing sampling data. Those required to submit the annual report to United States Environmental
Protection Agency (US EPA) may be required to make up the missed sampling. Contact the US EPA for additional information.
WQ0035207 Version 2.7 Attachment A Page 2 of 2