NC0004375_authorization to construct_19871006

State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary October 6, 1987 Director
Mr. R. G. Mockridge, Plant Manager
Sandoz Chemicals Corporation
P.O. Box 669246 .
Charlotte, North Carolina 28266
SUBJECT: Permit No. NC000437.5
Authorization to Construct
Sandoz Chemicals Corporation
Mount Holly Plant
Lagoon Modifications
Mecklenburg County
Dear Mr. Mockridge:
A letter of request for Authorization to Construct was received July 16, 1987,
by the Division and final plans and specifications for the subject project have been
reviewed and found to satisfactory. Authorization is hereby granted for the
construction of a divider dike in the middle of -the existing Z03 basin, creating two
basins (ZO3A and Z03B). This project also includes the lining of the north basin
(Z03A), and also lining basin Z26,. which will be utilized for storing acid
stormwater from a proposed diversion structure.
The sludge generated from these treatment facilities must be disposed of in
accordance with G.S. 143-215.1 and in a manner approvahle by the North Carolina
Division of Environmental Management.
A one foot thick compacted clay liner having a permeability no greater than 1x10-6
cm/sec or an equivalent synthetic liner or bentonite clay liner must be installed in
the northern lagoon (Z203A) by August 1, 1988.
Following installation and inspection of. the .lagoon liners, and prior to start
of wastewater treatment operations, verification of the liners compliance with
permeability and thickness specifications must he provided to the Division. by the
project engineer.
Any groundwater quality monitoring, as deemed necessary by the Division of
Environmental Management, shall be provided.
This Authorization to Construct is issued in accordance with Part III paragraph
"C" of NPDES Permit No. NC0004375 issued May 13, 1983, and shall be subject to
revocation unless the wastewater treatment facilities are constructed in accordance
with the conditions and limitations specified in Permit No. NC0004375.
Pollution Prevention Pays
P.O Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Page Two
Mr. R.G. Mockridge
The Mooresville Regional Office, telephone number. 704/663-1699 shall be notified
at least twenty-four (24) hours in advance of operation of the subject facilities so
that an in -place inspection can be made. Such notification to the Regional
Supervisor shall be made during normal office hours.
In event the facilities fail to perform satisfactorily in meeting its NPDES
permit effluent limits, Sandoz Chemicals Corporation shall take such immediate
corrective action as may be required by this Division, inciiiding the construction of
additional wastewater treatment and disposal facilities.
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 approved plans and specifications.
One (1) set of approved plans and specifications is being forwarded to you. If
you have any questions or need information, please contact Mr. Asaad Shamsi,
telephone number 919/733-5083.
Sincerely yours,
cc: Mecklenburg County Health Department
Mecklenburg Division of Environmental Health
Mooresville Regional Supervisor
Engineering Science
Mr. Dennis R. Ramsey
Engineer's Certification
1 , as a duly registered Professional Engineer in the
State of North Carolina, hereby certify that construction of these permitted
facilities has been completed in accordance with the approved plans and
specifications.
Signature Registration Number Date