I'm working on a mixed-use tower construction project in Morocco.
The site being near a pretty big river that crosses the city, coming from the ocean nearby, the contractor wants to pump excess rainwater into the river.
- This rainwater has been naturally running through drainage canals around the construction site, which makes it free of sediments and contaminants from construction activity.
- All contaminated water from oil, gasoline and other stuff goes through a Hydrocarbon separator, and the water coming out of the separator is directly rejected into the stormwater drainage canals around the construction site.
My questions are :
- Can the contractor release the drained stormwater into the river ?
- What are the best practices for dealing with excavated dirt that has been mixed with concrete ?