3902_GranvilleMSWButner_Notification_DIN27889_20160315

2211 W. Meadowview Rd., #101
Greensboro, NC 27409
tel: [phone]
fax: [phone]
www.JoyceEngineering.com

March 15, 2016

Ms. Jackie Drummond
North Carolina Department of Environment and Natural Resources
Division of Waste Management, Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

RE: Notification of Detections above NC 2L or SWS GWPS Standards
First Semiannual Sampling Event of 2016
Granville County – Closed Butner Landfill, Permit No. 39-02
JOYCE Project No. 00660.1601.12, Task 07

Dear Ms. Drummond:

On behalf of Granville County, Joyce Engineering is submitting this notification of
exceedances of 15A-NCAC-2L (NC-2L) groundwater standards at the Granville County – Butner
Landfill, Permit No. 39-02, in accordance North Carolina Solid Waste Management Regulations. The
first semiannual sampling event of 2016 at the Butner Landfill took place on February 16, 2016. The
samples were sent to Pace Analytical Services, Inc. for analysis. Groundwater samples from MW-4,
MW-5, MW-6 and the surface water samples were analyzed for Appendix I constituents, and samples
from MW-1R, MW-2R, and MW-3R were analyzed for Appendix II Constituents plus MNA
parameters and previously detected Appendix I constituents plus MNA parameters. The sample from
the performance well NES-1 was sampled for Appendix I VOCs plus MNA parameters.

Antimony was reported above the NC 2L standard in MW-2R and MW-3R. Cobalt was
reported above the GWPS in MW-2R and MW-5. Preliminary statistical analysis does not indicate
statistical increases above the calculated background value for antimony or cobalt.

Benzene in MW-2R was reported above the NC 2L Standard at 1.3 µg/L, which is consistent
with historical data. In response to the historical exceedances for benzene, Granville County has
implemented an approved Corrective Action Plan (CAP), as required by the NC DENR.

A complete report documenting the activities and results of the first semiannual compliance
monitoring event of 2016 will be submitted to the NC DENR separately. If you have any questions or
need additional information, please feel free to contact me at [phone].

Sincerely,
JOYCE ENGINEERING, INC.

Alex Everhart
Project Consultant

Copy: Amanda Freeman, Granville County