Topcon Positioning Systems announced it has made a strategic investment in DDK Positioning Ltd, an Aberdeen based specialist in GNSS receivers and PPP correction services. DDK Positioning delivers services exclusively…

By Clayton Hall Stormwater management and compliance is necessary to meet often-changing — and sometimes challenging — regulations that serve to protect the environment and our natural resources. But compliance…

Washington, D.C. — As part of EPA’s compliance assistance for the National Pollutant Discharge Elimination System (NPDES) construction stormwater program, EPA created a “Do I Need A Permit?” flow chart…