NC0005088_Approval to Repair Scope 1_20150312

AVA
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald van der Vaart
Governor Secretary
Certificate of Approval
March 12, 2015
Mr. John Elnitsky
Vice President
Duke Energy
P.O Box 1321, DEC 22C
Charlotte,NC 28201-1007
RE: Approval to Repair—Scope 1
Cliffside Active Ash Pond Downstream Dam
Cleveland County
State Dam ID: CLEVE-049
Dear Mr. Elnitsky:
This is in response to your submission dated September 26, 2014, received on September 29,
2014 of plans, specifications and design data for repair of the subject dam in compliance with the
Dam Safety Law of 1967. This dam is of high hazard classification. The plans, specifications
and design data submitted were prepared under the supervision of Mr. Joshua M. Bell, PE of
AMEC Environment& Infrastructure, Inc.
Scope 1 General Work Description: Engineered repair plan to line the horizontal outlet piping
(centrifugally cast cementitious lining)and engineered repair directions for deterioration/surface
spa I1Tng of the riser(remove distressed concrete and apply mortar).
This letter constitutes approval of the proposal to repair the subject dam according to the plans
and specifications received by this Division on September 29, 2014 with the following
stipulations:
1. Project construction shall be supervised by Mr. Joshua M. Bell, PE. Mr. Joshua M. Bell, PE
shall be responsible for field observation of construction as necessary to ensure compliance
with approved plans.
2. During construction, the Division of Energy, Mineral, and Land Resources may require such
progress reports as are deemed necessary.
Division of Energy, Mineral, and Land Resources
Energy Section•Geological Survey Section•Land Quality Section
1612 Mail Service Center, Raleigh, North Carolina 27699-1612.919-707-9200/FAX:[phone]
512 North Salisbury Street, Raleigh,North Carolina 27604•Internet:htto://portal.ncdenr.org/web/Ir/
An Equal Opportunity 1 Affirmative Action Employer—50%Recycled 110%Post Consumer Paper

Mr. John Elnitsky Cliffside Active Ash Pond Downstream Dam
Approval to Repair—Scope 1 CLEVE-049
March 12, 2015
Page 2 of 3
3. In accordance with GS 143-215.29 and NCAC 15A-2K .0203, .0212, .0215, and .0216,
within 30 days of completion of the project, Mr. Joshua M.Bell, PE shall inspect the
completed work and upon finding that the work has been done as specified and the dam is
safe, shall file with the Division of Energy, Mineral, and Land Resources two sets of record
drawings and a certificate stating that the work has been completed in accordance with
approved plans, specifications and other requirements.
4. The quality control plan required by Specification 33 42 02 Section 1.02 E shall include at
minimum the following which shall be submitted with the record drawings:
A. A full conduit length pipe video taken upon completion of requirements of Specification
33 42 02 Section 3.01 "Pipe Condition Preparation".
B. A full conduit length pipe video taken not less than seven days after the completion of
pipe lining installation.
5. In accordance with GS 143-215.30 and NCAC 15A-2K .0220, final written consent must be
issued by the Director of the Division of Energy, Mineral, and Land Resources for use of this
dam pursuant to these repairs.
6. An operation and maintenance(O&M)plan are required for all high hazard dams. The O&M •
plan should address routine maintenance, frequency of piezometer readings, frequency of
inspections by the owner or the owner's representative, and annual operation of the bottom
drain to ensure that it is functional. The O&M plan must be received prior to ispce of
final written consent for use of this dam pursuant to these repairs.
7. This approval does not convey the right to access the private property of others. Any
required access to perform the approved work must be secured prior to initiation of
construction activities.
8. Water control activities required to complete approved repairs which involve diversion and
discharge of reservoir waters to discharge points not covered by an existing NPDES permit,
or which utilize procedures that are not approved by an existing NPDES permit, must receive
approval from the Division of Water Resources prior to implementation.
9. You must notify Mr. Zahid Khan, Regional Supervisor, Land Quality Section, 610 East
Center Ave., Suite 301, Mooresville,North Carolina 28115, [phone] ten days before
the start of construction.
The Army Corps of Engineers and the Water Resources Division of this Department should be
contacted to determine if additional permits are required. Also,the erosion and sediment control
program having jurisdiction should be contacted to determine permit requirements. In any case,
• sediment must be prevented from entering the waters of the state or flowing onto neighboring
property.

• # Mr. John Elnitsky Cliffside Active Ash Pond Downstream Dam
Approval to Repair—Scope 1 CLEVE-049
March 12,2015
Page 3 of 3
Because the subject dam is currently under a Notice of Deficiency issued by this Division, it is
essential that the approved repairs are implemented as soon as possible to protect public safety
and eliminate the need for further enforcement actions. For assistance you may contact the
Mooresville Regional Office at(704) 663-1699 or a staff member of the Dam Safety Program in
the Raleigh Central Office at telephone number(919) 707-9220.
Sin rely,
c E. avis, PE, CPM
Dire o
TED/smm/bsc
cc: Mr. Joshua M. Bell, PE
Mr.Zahid Khan, Land Quality Regional Engineer
Mr. Jeff Poupart, Division of Water Resources
Ms. Kim Hutchinson, Duke Energy
Mr. John Toepfer, Duke Energy •
Mr. Sean DeNeale, Duke Energy
File name: CLEVE-049_20150312_COAR-Scope l_Cliffside Active Ash Pond Downstream Dam