https://www.interraservices.com/cta-ev-bus-charging-stations-2/
CTA, EV Bus Charging Stations (2) - INTERRA, Inc.
Aug 8, 2022 - For these two CTA station projects, INTERRA provided Quality Assurance services. Testing and inspection duties were performed on soil and concrete. For soil,...
cta evbus chargingstationsinterrainc
https://www.interraservices.com/cta-ev-bus-four-charging-stations/
CTA, EV Bus Two Charging Stations - INTERRA, Inc.
Aug 2, 2021 - For these CTA station projects, INTERRA provided Quality Assurance services. Testing and inspection duties were performed on soil and concrete. For soil,...
cta evcharging stationsbustwointerra