Sediment remediation is like a construction project on the water. It can involve large equipment, bright lights, and noise. Many projects even continue into the night and on weekends to speed up the process. Remediation can feel inconvenient, but a bit of patience results in a big payoff.
The stretch of river from Stateline to Hohman Ave. contains petroleum products near the surface where digging is taking place.
Odors, caused by the petroleum, may become airborne as a result of the digging. The project team is responsible for controlling odors onsite, often done using odor-suppressing foam.
The project team is monitoring the air for health and safety to make sure that air quality is unaffected during the project. The team is using fixed and portable monitors to provide additional air quality data throughout the site as digging progresses along the river. The map below shows permanent monitoring locations, strategically placed near the pads where sediment will be drying.
Monitoring results show that air pollution has only exceed health threshold limits two separate times during excavation, and each time was immediately brought back down below harmful levels. The project agreement requires operations to cease if the threshold is exceeded for 10 consecutive minutes, which has not occurred during this project. Air quality monitoring will continue to ensure the health and safety of the area around the project site.