HomeMy WebLinkAboutNCS000328_Staff Report_20190710NC Division of Energy, Mineral and Land Resources
Review for Permit — NCS000328
Bestway South
Facility Activities and Processes:
• SIC Code: 2491— Wood Preserving
• Bestway South is a lumber treating and dry kiln facility. It contains a treating plant with a 64-foot
double door cylinder. It has three work tanks, CCA bulk storage tank enclosed in a blocked with
sprinkler system installed. The drip pad is double lined and is fully self-contained with burms
surrounding the treater. All chemical that drips from the treated lumber is drained back into the
door pits where it is reused in the treating process. The water system used for the treating
process has a check valve and a back -flow preventer system installed. The treating plant is
covered by a steel building with gutters and is paved around it. All chemical tanks are double
lined and can contain all the material in case of an accident. All hazardous waste generated is
stored in 55-gallon drums and is removed by Terra First Inc. The treater and shop have spill
containment kits for small and large spills.
• There is a pond onsite that collects stormwater. The permittee indicated that there have been
no discharges from the pond.
Monitoring Information:
Changes have been made to several monitoring parameters, including a change to two benchmarks.
Copper benchmark is increased from .007 mg/I to .010 mg/I; Vehicle maintenance monitoring
parameters have been revised as follows:
• Non -polar Oil and Grease [EPA Method 1664 (SGT-HEM)] replaces Oil and Grease/TPH. The
benchmark for Non -polar Oil and Grease using this method is 15 mg/L. This requirement
appears in all individual stormwater permits; however, it only applies to facilities that perform
onsite vehicle maintenance activities. If the facility begins vehicle maintenance during the
permit cycle, the requirements shall apply.
• pH monitoring is no longer required for discharges only associated with vehicle maintenance
activities.
No other monitoring parameters have been changed or added from the last permit term.