NC0030759_Approval_20211021

October 21, 2021

Mr. Jonathan W Ham, PE, Engineering Supervisor
City of Raleigh Public Utilities Department
PO Box 590
Raleigh, N. C. 27601

Subject: City of Raleigh
Smith Creek (Wake Forest) WWTF – NC0030759
Sanitary Sewer Flow Allocation
Block Flow Approval No. 15
Wake County

Dear Mr. Ham:

On April 10, 1986, the Environmental Management Commission granted full delegation authority to the City
of Raleigh to issue certain sanitary sewer extension permits. In conjunction with that delegation, this office
has been allowing the City to issue those permits based upon a block flow approval process. Effective July 1,
2005, the City of Raleigh has agreed to provide, maintain, and extend water and sewer services to the Town
of Wake Forest, and has therefore assumed the issuance of sewer extension permits in that same area. In
this regard, a block flow approval process has been established for the Smith Creek (Wake Forest) facility,
independent of the City of Raleigh’s Neuse River facility.

As requested in your correspondence dated October 14, 2021, this office hereby grants an additional block
flow allocation of 200,000 GPD for permits written by the City of Raleigh for sewer extensions tributary to
the Smith Creek (Wake Forest) WWTF, bringing the total block flow granted to date to 2,800,000 gpd. As
permits are issued by the City, the wastewater flow associated with those projects will be subtracted from
the block flow allocation. When the City feels it necessary, it may request an additional allocation. The Smith
Creek WWTF has a permitted and constructed capacity of 3.0 MGD. Based upon your Quarterly Report
ending in September 2021, you report the Smith Creek WWTF had an annualized flow of 2.25 MGD, or 75%
of its permitted capacity.

The Raleigh Regional Office requires that the City submit a quarterly report for the Smith Creek WWTF. The
report should be received by the Raleigh Regional Office by the 15th of each of the following months; January,
April, July and October, and must provide the following information for the permits that have been issued:

1) Permit Numbers
2) Permit Issue Dates
3) Permit Holders
4) Name of Projects
5) Project Wastewater Flow
6) Total Project Wastewater Flow for the Quarter
7) Summary of Activities for Violations of the Permitting Process










Additionally, the report must provide the following information:

1) Running total to date of flow allocated to the City by the Raleigh Regional Office
2) Running total to date of flow from permits issued
3) Flow which remains from previous allocations from the Raleigh Regional Office
4) Running total of flow which has been depleted from the allocation by Issued permits, but
which has not yet become tributary to the WWTF
5) Total flow (also includes flow from permits issued prior to the implementation of the block
flow approval process) not yet tributary to the WWTF
6) Most recent twelve-month flow average of the WWTF

The information required above should be submitted at least quarterly by the last day of the months of April,
July, October and January. All information may be submitted via e-mail, with attachments in Word or Excel
formats. Send electronic transmittals to [e-mail] and copy [e-mail]
and [e-mail].

The Raleigh Regional Office reserves the right to suspend this block flow approval process if problems occur
with the functionality of this program, if problems occur with the compliance status of the WWTF, or if other
situations occur which might jeopardize the successful operation of this program.

If you have any questions regarding this matter, or need any additional information, please contact
Jason Robinson via e-mail to [e-mail].

Sincerely,

____________________________
for S. Daniel Smith
Director, Division of Water Resources

Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDEQ

cc: RRO Water Quality Regional Operations
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