WQ0016966_Annual Report_20240517

North Carolina Department of Environmental Quality | Division of Water Resources
Winston-Salem Regional Office | 450 W. Hanes Mill Rd, Suite 300 | Winston-Salem, North Carolina 27105
336.776.9800

May 17, 2024

Delivered electronically via email to: [e-mail]

Larry Ward, Mayor
Town of Denton
P.O. Box 306
Denton, NC 27239

SUBJECT: 2023 Residuals Annual Report Review
Town of Denton, Land Application Program
Permit No. WQ0016966
Davidson County

Dear Mr. Ward:

On May 8, 2024, Division of Water Resources staff, Kristen Potwora, completed a review
of the 2023 Annual Report for WQ0016966. This review reflects compliance with the
subject permit.

Please refer to the enclosed inspection report for additional comments and observations.
If you have any questions, please contact me or Kristen Potwora at the letterhead address
and phone number 336-776-9697, or by email at [e-mail] or
[e-mail].

Sincerely,

Jennifer F. Graznak, Assistant Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ-WSRO

Enc: Inspection Report
Cc: Davidson County Environmental Health (Electronic Copy)
Troy Branch - ORC (Electronic Copy)
Zach Key – US Biosolids (Electronic Copy)
Compliance Inspection Report
Permit:WQ0016966 Effective:04/14/20 Expiration:09/30/26 Owner :Town of Denton
SOC:
Contact Person:
Region:
County:
Directions to Facility:
Davidson
Winston-Salem
Zach D Key
Effective:Expiration:Facility:Town of Denton RLAP
300 Council Access Rd
Denton NC 27239
Title:Phone:[phone]
Secondary ORC(s):
Phone:Certification:Primary ORC:
LA,System Classifications:
On-Site Representative(s):
Related Permits:
NC0026689 Town of Denton - Denton WWTP
NC0082949 Town of Denton - Denton WTP
Secondary Inspector(s):
Primary Inspector:
Inspection Date:Exit Time:Entry Time:
Phone:
05/08/2024 08:00AM 09:00AM
Kristen Potwora 336-776-9800
Facility Status:
Permit Inspection Type:
Reason for Inspection:Inspection Type:
Not CompliantCompliant
Routine
Land Application of Residual Solids (503)
Annual Report Review
Question Areas:
Miscellaneous Questions Record Keeping Sampling
Pathogen and Vector Attraction
(See attachment summary)
Page 1 of 4
Inspection Date:
Permit:
Inspection Type :
Owner - Facility:
Reason for Visit:
WQ0016966
05/08/2024 Annual Report Review
Town of Denton
Routine
Inspection Summary:
On May 8, 2024, Division of Water Resources staff, Kristen Potwora, completed a review of the 2023 Annual Report for
WQ0016966. This review reflects compliance with the subject permit.
Observations:
•Residuals Analysis and TCLP Analysis sampled on 8/8/2023.
•Standard Soil Fertility Analysis sampled on 12/22/2023.
•Lime Stabilization used for Pathogen and Vector Attraction Reduction.
•Applied on 1 field during the 2023 calendar year.
Page 2 of 4
Inspection Date:
Permit:
Inspection Type :
Owner - Facility:
Reason for Visit:
WQ0016966
05/08/2024 Annual Report Review
Town of Denton
Routine
Type Yes No NA NE
Distribution and Marketing
Land Application
Record Keeping Yes No NA NE
Is GW monitoring being conducted, if required?
Are GW samples from all MWs sampled for all required parameters?
Are there any GW quality violations?
Is GW-59A certification form completed for facility?
Is a copy of current permit on-site?
Are current metals and nutrient analysis available?
Are nutrient and metal loading calculating most limiting parameters?
a. TCLP analysis?
b. SSFA (Standard Soil Fertility Analysis)?
Are PAN balances being maintained?
Are PAN balances within permit limits?
Has land application equipment been calibrated?
Are there pH records for alkaline stabilization?
Are there pH records for the land application site?
Are nutrient/crop removal practices in place?
Do lab sheets support data reported on Residual Analysis Summary?
Are hauling records available?
Are hauling records maintained and up-to-date?
# Has permittee been free of public complaints in last 12 months?
Has application occurred during Seasonal Restriction window?
Comment:
Pathogen and Vector Attraction Yes No NA NE
a. Fecal coliform SM 9221 E (Class A or B)
Class A, all test must be <1000 MPN/dry gram
Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram
Fecal coliform SM 9222 D (Class B only)
Geometric mean of 7 samples per monitoring period for class B<2.0*10E6 CFU/dry gram
b. pH records for alkaline stabilization (Class A)
c. pH records for alkaline stabilization (Class B)
Temperature corrected
d. Salmonella (Class A, all test must be < 3MPN/4 gram day)
Page 3 of 4
Inspection Date:
Permit:
Inspection Type :
Owner - Facility:
Reason for Visit:
WQ0016966
05/08/2024 Annual Report Review
Town of Denton
Routine
e. Time/Temp on:
Digester (MCRT)
Compost
Class A lime stabilization
f. Volatile Solids Calculations
g. Bench-top Aerobic/Anaerobic digestion results
Comment:
Sampling Yes No NA NE
Describe sampling:
Is sampling adequate?
Is sampling representative?
Comment:
Page 4 of 4