Author Archives: Bob Wenzlau

Bob’s goal has been to build the “institution” for institutional controls. The building blocks include a strong understanding of regulatory and technical requirements of stewardship, and an arsenal of multiple information and mapping techniques. Bob is a registered civil engineer, graduate of Stanford and is a founder and now CEO of Terradex, Inc.

ABC-KGO TV Reports on Terradex in “Fighting Global Warming At Local Level”

Reporter Lyanne Melendez of KGO TV reported on the Association of Bay Area Government’s effort to confront global warming. San Jose Councilmember Cortese liked the online Terradex emissions models. It calculates the level of greenhouse gases for each major city based on data from the Energy Department and the Environmental Protection Agency. Watch The Coverage: Fighting […]

USEPA Releases Study Citing Terradex’s Protection of the Los Angeles Public Water Supply

Terradex avoided a “disaster” threatening the potable water in Los Angeles, according to the United States Environmental Protection Agency. The local permit agency approved the installation of a cathodic protection well. This type of deep well, used to prevent pipeline corrosion, has perforated walls and can thus allow groundwater to flow downward from a shallow […]

Leading ASTM’s Continuing Obligations Practice Standard

In October 2005, Bob Wenzlau of Terradex was appointed Task Group Chair to build a practice standard for Landowner Continuing Obligations. When complete, the practice standards will systematically improve the long-term public and environmental safety at brownfields while limiting financial liabilities brownfield redevelopers. The Task Group includes participation from USEPA, state government, brownfield redevelopers, environmental […]

Working with Excavators Clearance Systems to Proactively Inform of Environmental and Health Hazards

The excavation limits of a new water main are marked on the street. Consistent with state regulation, the excavator calls in the excavation limits to the One-Call System. Soon the street is marked with utility locations. Surprisingly, the excavator receives a fax describing that the excavation site as occurring in a zone of environmental contamination. […]