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North Indian Bend Wash

North Indian Bend Wash Superfund Site

One remediation effort with which Motorola Solutions is involved is at the North Indian Bend Wash (NIBW) site, an eight square mile study area in Scottsdale, Arizona, U.S., where portions of the underlying groundwater contain volatile organic compounds (VOCs).

Motorola (now Motorola Solutions) has operated in the Phoenix area for more than 60 years. We are managing environmental cleanup related to the former site of the Government Electronics Group located at Hayden and McDowell Roads in Scottsdale. In 1983, the U.S. Environmental Protection Agency (EPA) designated this area as the North Indian Bend Wash Superfund Site following detection of trichloroethylene (TCE) in two public water supply wells. Motorola Solutions, Siemens and GlaxoSmithKline (known as the NIBW Participating Companies) are the principal companies responsible for the NIBW cleanup.

Through 2020, we have spent more than $164 million on environmental cleanup activities at the Scottsdale site. More than 135 billion gallons of water have been pumped and treated at the NIBW site since the cleanup began. 

In 2011, the EPA performed the first five-year review of the site, and concluded that the remedy is protective of human health and the environment, that the remedy is functioning as intended, and that remedial actions are contributing to restoring groundwater for beneficial use.  

The EPA conducted the second five-year review of the site in 2016, which concluded that while the remedy remains protective, the areas in the immediate vicinity of the former soil-impacted source areas needed to be re-evaluated for potential vapor intrusion risk due to new standards developed in 2014.  The results of this evaluation required a sub-slab venting system at four units of one multi-family residence near the former Siemens source area.

In July 2009, we began purchasing renewable energy to power remediation efforts at NIBW sites. All the electricity used at the Central Groundwater Treatment Facility comes from wind farms and 100 percent of the electricity used at the MRTF, NGTF and the Area 7 Groundwater Extraction and Treatment System (GWETS) comes from solar, wind, geothermal, biogas and biomass energy generation. Between July 2009 and December 2020 we purchased more than 24 million kilowatt hours of renewable energy for NIBW sites.

For more information on our remediation efforts at this site, download our information packet. 

Additional resources:

NIBW Superfund Site Data, Reports and Resources

NIBW Superfund Site FAQs

NIBW Superfund Site: Fact Sheet

North Indian Bend Wash Site Contacts

Motorola Solutions has established a team of scientists and engineers who provide long-term management of the remediation at the NIBW site. To contact one of the team members via e-mail, click on the name below.

Terry Lockwood

Terry is the Program Manager for Motorola Solutions’ Remediation Team. She has a Bachelor of Science degree in Mechanical Engineering from New Mexico State University (NMSU) with 10 years prior experience in construction management and environmental compliance in the Underground Storage Tank (UST), National Pollutant Discharge Elimination System (NPDES), and Title V air quality permit programs in the electric and water utility industry. Since joining Motorola in 1996, Terry has provided engineering oversight for construction, startup, and operation of NIBW soil and groundwater remediation systems. As Program Manager, Terry provides leadership and strategic direction for the NIBW Program, along with management of Motorola's Global Environmental Remediation, Due Diligence and Supply Chain Corporate Responsibility programs. Terry has served as an officer and Board member for the NMSU Mechanical and Aerospace Engineering Academy and also holds a Master's Certificate in Project Management from George Washington University.

Leslie Katz

Leslie assists Ms. Lockwood as Project Coordinator for the NIBW Participating Companies.  She has nearly 30 years of experience as a hydrogeologist, environmental scientist, and project manager, and is a principal with the consulting firm Montgomery & Associates.  Leslie started working as a junior hydrogeologist at the NIBW Superfund Site in 1989 and has taken on increased responsibility for the project during her more than 25-year tenure at Montgomery & Associates.  She holds Bachelor of Science in Geology and Master of Science in Hydrology degrees from the University of Arizona, and is a Registered Professional Geologist in Arizona.

James Lutton

James assists Ms. Lockwood as NIBW Project Engineer. Mr. Lutton has over 30 years’ experience in water treatment and groundwater and soil remediation.  James began his career as an engineer in research and development for a wastewater treatment technology company in Colorado.  James began working on the NIBW Superfund Site in 1992. James’ experience on NIBW includes water and air treatment, soil and groundwater remediation, regulatory compliance, permitting, and project management. James holds a Bachelor of Science degree in Petroleum Engineering from University of Missouri at Rolla, Missouri School of Mines in Metallurgy. James is a registered chemical engineer in Arizona.