NC0030210_Authorization to Construct_20150120

WDES DOCUMENT SCANNINO COVER SHEET
NPDES Permit:
NC0030210
Charlotte / Mallard Creek WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC) y..:
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Meeting Notes
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
January 20, 2015
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Charlotte -Mecklenburg Utilities
A To C No: 030210A01
January 19, 2011
Engineer's Certification
I Chn +O Ae r Cro -t' W
as a duly registered Professional Engineer in
the State of North C line, having been authorized to observe Ca
iodicall weekly/full time)
the construction of the modifications and improvements to thearc1- reek WRF, located on
US Highway 29 North in Mecklenburg County for the Charlotte -Mecklenburg Utilities, hereby
state that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
Removal of two (2) trickling filters; reconstruction of a flow distribution splitter box;
construction of 100-ft diameter, 15-ft sidewater depth secondary clarifier, two (2) 2,800
gpm -submersible return activated sludge pumps, two (2) 306 gpm submersible
centrifugal scum pumps, and four (4) 5,000 gpm submersible oxic recycle pumps, in
conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural
Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature 2 Registration0 3 ✓ 5 dd
No.
Date - Z 0 — !
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

ern
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
Mr. Kit Ellei
Charlotte -Mecklenburg Utilities
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
Dear Mr. Eller:
Coleen H. Sullins
Director
January 19, 2011
Dee Freeman
Secretary
SUBJECT: Authorization to Construct
A to C No. 03021OA01
Charlotte -Mecklenburg Utilities
Mallard Creek WRF
Mecklenburg County
A letter of request for an Authorization to Construct was received October 25, 2010, by
the Division' of Water Quality (Division), and final plans and specifications for the subject
project have) been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of modifications to the existing 12.0 MGD Wastewater Treatment Plant, with
discharge of treated wastewater into Mallard Creek in the Yadkin -Pee Dee Basin.
This Authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Removal of two (2) trickling filters; reconstruction of a flow distribution splitter box;
construction of 100-ft diameter, 15-ft sidewater depth secondary clarifier, two (2) 2,800
gpm submersible return activated sludge pumps, two (2) 300 gpm submersible
centrifugal scum pumps, and four (4) 5,000 gpm submersible oxic recycle pumps, in
conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural
Resources.
This, Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Pe it No. NCO030210 issued July 1, 2009, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations
specified in Permit No. NCO030210.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St..Raleigh, North Carolina 27604 NorthCarolina
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterquality.org Natuorally
An Equal Opportunity 1 Affirmative Action Employer

Mr. Kit Eller
January 19, 2011
Page 2
This Authorization To Construct is issued pursuant to T 15A:2H.0219(p) for the
construction of a reclaimed water utilization facility without flow equalization at the site of the
City/Town WWTP. In the event that non-compliance with any condition or limitation contained
in Permit No. WQ0030210 results from the absence of flow equalization, the Town's NPDES
permit may be administratively reopened, and a requirement for the construction of a flow
equalization basin may be incorporated into the permit.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Mooresville Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T I 5A: 8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.

Mr. Kit Eller
January 19, 2011
Page 3
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
&ek IjjIr�
01a% Coleen H. Sullins
swc:sr
cc: David M. Parker, P.E., Carollo Engineers, Inc., 9115 Harris Corners Pkwy, Suite 440,
Charlotte, NC 28269
Mecklenburg County Health Department
Mooresville Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Point Source Branch, NPDES Program
Steve Coffey, P.E.
ATC 030210A01