NCS000569_Staff Report_20190715

NC Division of Energy, Mineral and Land Resources
Review for Permit — NCS000569
Linde Electronic Gases and Specialty Products
Durham, NC
Facility Activities and Process:
• SIC Code:
• The facility's primary function is the transfill and ultrasonic testing of compressed gas cylinders.
• The primary materials at the facility are gasses.
• Liquid materials onsite which may be exposed to stormwater include caustic (25% solution)
which is stored outside in 55-gallon drums on spill containment pallets.
• Solid materials stored at the facility which are exposed to stormwater include scrap metals and
compressed gas cylinders.
• Scrap metals are stored in open dumpsters which are located in the employee parking area and
in the area located behind Building 184.
• Compressed gas cylinders are stored throughout the facility. Small amounts of hazardous waste
are also produced by the facility through various processes, however; once it is produced it is
collected by the facility's dust collector.
• The dust collector is located outdoors and is ground -mounted. Dust is collected in 55-gallon
drums which are placed on spill containment pallets.
• Waste contained within the drums has the potential to contain arsenic particulates.
Monitoring Information:
• The facility discharges to nutrient sensitive waters. Nitrogen and Phosphorous have been added
to the permit.
• Scrap metal is stored outside in the employee parking lot. Copper, lead, and zinc have been
added to the permit.
• The facility has a dust collector that is located outside. The dust collected has the potential to
contain arsenic. Arsenic has been added to the permit.
• The facility has issues with paint chips eroding off of gas cylinders and exiting outfalls. TSS has
been added to the permit.
Surface Water Information:
• The facility discharges to Buck Branch, a class WS-IV; NSW stream in the Cape Fear River Basin.
Buck Branch is not listed as an impaired waters.
Discussions with the Facility:
• Contact was made with the facility over phone and email was made on 4/11/2019.
Regional Office Information:
• Sent to Regional Office Contact, Thad Valentine, on 4/15/2019.