NC0043176_approval_20040920

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
ZO,Z_Ce4
CERTIFIED MAIL 7003 0500 0002 6814 4509
RETURN RECEIPT REQUESTED
Mr. Michael Uskiewicz
City of Dunn
P. O. Box 1065
Dunn, NC 28335
Subject: Lifting of Sewer Line Moratorium
City of Dunn — Black River WWTP
NPDES Permit NC0043176
Harnett County
Dear Mr. Uskiewicz:
On July 22, 2004 a moratorium on the issuance of sewer line permits was placed on the City of
Dunn per the authority of 15A NCAC 2H .0223, which specifies that prior to exceeding 80% of
their hydraulic treatment capacity, facilities must submit an approvable engineering evaluation of
their future wastewater needs before permits for sewer line extensions may be issued. The July
22 letter erroneously stated the facility had operated at 100.7% of its treatment capacity during
calendar year 2003. The Division had referenced an incorrect treatment design capacity in its
original calculations. However, revised calculations that reference the facility's 3.75 MGD
capacity still indicate the facility operated at 80.6% of design capacity during 2003, and therefore
still falls under the authority of the rule.
I have reviewed the City of Dunn's letter of August 2, 2004, requesting to have the sewer
moratorium lifted. The information provided in the letter has shown the City has complied with
the terms of 15A NCAC 2H .0223(1) through its studies and subsequent actions to address
inflow and infiltration within the collection system. In addition to its routine system
rehabilitation program through municipal funding, the City has secured grants to fund major
collection system rehabilitation, and is seeking funding to finance a planned flow equalization
project. Each of these measures should help conserve capacity within the treatment system and
increase overall plant efficiency. These actions have demonstrated the City's commitment to
providing wastewater treatment service that will accommodate future demands within its service
area.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 N. Salisbury St., Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet:: h2o.enr.state.nc.us
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper
NorthCarolina
Naturally

Mr. Michael Uskiewicz
City of Dunn Lift Moratorium
p.2
In light of these findings, I hereby remove the moratorium on the issuance of sewer line permits
placed on the City of Dunn. I encourage the City to maintain an aggressive posture as you face
the challenges presented by continued collection system rehabilitation and possible wastewater
treatment plant modification.
Please be aware that should flow at the wastewater treatment plant exceed the 90% of design
capacity threshold, a moratorium could again be imposed as called for in 15A NCAC 2H .0223.
If you have questions or comments related to this matter please do not hesitate to contact Bob
Sledge of our Central Office staff, at [phone], extension 547 or Paul Rawls of the Surface
Water Protection Section staff of our Fayetteville Regional Office at [phone].
Sincerely,
4,7AL
oleen H. Sullins
Deputy Director
cc: Fayetteville Regional Office
NPDES Moratorium Files
Central Files
Collection System & Pretreatment