WQ0002708_More Information (Requested)_20200116

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
January 16, 2020
CHRIS PHELPS — WASTEWATER TREATMENT PLANT SUPERINTENDENT
CITY OF RALEIGH
POST OFFICE BOX 590
RALEIGH, NORTH CAROLINA 27602
Subject: Application No. WQ0002708
Additional Information Request
City of Raleigh Wrenn Road
Facility
Wastewater Irrigation System
Wake County
Dear Mr. Phelps:
Division of Water Resources' Central and Regional staff has reviewed the application package
received November 6, 2019. However, additional information is required before the review may be
completed. Please address the items on the attached pages no later than the close of business on February
17, 2020.
Please be aware that you are responsible for meeting all requirements set forth in North Carolina
rules and regulations. Any oversights that occurred in the review of the subject application package are
still the Applicant's responsibility. In addition, any omissions made in responding to the outstanding items
in Sections A through F, or failure to provide the additional information on or before the above requested
date may result in your application being returned as incomplete.
Please reference the subject application number when providing the requested information. All
revised and/or additional documentation shall be signed, sealed and dated (where needed), with two paper
copies and one electronic copy submitted to my attention at the address below.
If you have any questions regarding this request, please do not hesitate to contact me at (919) 707-
3658 or [e-mail]. Thank you for your cooperation.
Sincerely,
/�Wv
Ashley Kabat, Environmental Engineer
Division of Water Resources
cc: Raleigh Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Permit Application File WQ0002708
R ��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
NORTHCMOLINA
919.707.9000

Mr. Chris Phelps
January 16, 2020
Page 2 of 2
A. Cover Letter:
1. No Comments
B. Application:
1. No Comments
C. Property Ownership Documentation:
1. The previous permit issuance notes that there is an approved reduced setback from a property line
under separate ownership allowing wastewater to be irrigated within 200 feet of the property.
Please provide a copy of this setback waiver or provide the deed book and page that the document
is registered in the Wake County Register of Deeds.
E. Site Map:
1. If possible, provide a site map showing the property lines, irrigation zones, and all monitoring wells
showing the entire site on one sheet.
F. Current Permit:
1. The division has approved installation of monitoring wells to identify background contamination
concentrations for this site for arsenic, iron, and manganese. Please specify if these wells have
been constructed solely for use in determining background concentrations for these parameters and
will be abandoned after the study, or if the new monitoring wells will be used for the entirety of
this permit and will be sampled for all parameters listed in Attachment C.
2. The following schedules were included in the previous permit issuance and the Division does not
have documentation showing they have been completed:
i. Plans and specifications for a flow measuring device pursuant to Condition IV.3. shall be
prepared by a licensed North Carolina Professional Engineer and submitted to the Raleigh
Regional Office 30 days prior to installation. The flow measuring device shall be installed
within one year of the date of this permit.
ii. Prior to the distribution of DAF residuals to the City of Raleigh Wrenn Road Facility from
DE Benton WTP, the Permittee shall submit a completed Residuals Source Certification
for the DAF residual waste stream and all associated analyses to the Division
demonstrating similar characteristics to the sedimentation blowdown waste stream and that
the combined effluent qualities are suitable for the treatment at the City of Raleigh Wrenn
Road Facility. Once the Division has approved, the Wrenn Road Wastewater Irrigation
System shall be permitted to treat the DAF residual waste stream.