Category Archives: Dig Clean

DigClean is Protecting Excavators Across Delaware From Buried Chemicals

Excavations are a common event around contaminated sites as each flash of light signifies.  This map shows flashes for each excavations around contaminated sites in New Castle County, Delaware.  Try  adjusting the map, the date may be adjusted on the slider, and the coverage area adjusted by the zoom control.   You are watching about 3,500 excavation clearances resulting in […]

Mobile Web Tool for Excavators in Delaware Helps Plan for Subsurface Chemical Hazards

Terradex is testing a mobile web tool to assist excavators and engineers working near spill sites. Now under testing by several utility companies, the web tool permits an excavator to learn chemical information at cleanup sites in Delaware. The tool addresses a common need in the field:  “How in advance of an excavation, can we […]

Forecasting an Engineering Control or Institutional Control Breach, A Study of Third-party Excavation Activity

Excavations by third-parties are inevitable near any cleanup site. Of concern to cleanup site managers, these unexpected events can breach institutional or engineering controls relied upon in a site’s cleanup remedy. Third-party excavators include utility companies, developers and contractors whose work is not part of the site cleanup process. Terradex completed an analysis of excavation […]

Dig Clean Excavation Advisory Begins in Delaware

As another step towards increased environmental agency integration into one-call systems, on December 17, 2012 Terradex expanded its Dig Clean service on behalf of the Delaware Department of Natural Resources and Environmental Conservation (DNREC).   Terradex Dig Clean builds near real-time advisories that it sends to contractors and designers after they submit “locate requests” but  before […]

Slowly But Surely: One Call Systems Increasingly Used for Environmental Cleanup Sites

Slowly but surely, often with close involvement of Terradex, the power of one-call helps manage cleanup sites.  In every state, call-before-you-dig or “one call” laws require a phone call (or increasingly an electronic notice) of the planned dig.  State one-call centers route the resulting “excavation tickets” to the people and companies who own or operate underground […]