filter socks

Rick Schreiber

A Wyoming company is in trouble with North Dakota officials for improperly disposing of filter socks used in oil and gas drilling. Filter socks capture sediment in flowback water, and can concentrate naturally-occurring radioactivity. The North Dakota Department of Health says inspectors detected radioactivity at above-background levels on two flatbed trailers piled high with filter socks that are owned by Riverton-based R.P Services.