Services have been suspended since landslides destroyed Mocoa's water intake on February 18, with the city now working on an alternative intake.
A multidisciplinary UNESCO team will prepare a technical report on how future operations at the Huexca combined cycle power plant could impact water quality in the area.
The supreme court questioned the attributes granted to environmental regulator SMA under the bill and the definition of environmental felonies.
The city of Popayán has been left without waste collection services for over a week due to an order to shut down the main disposal site.
Using water from the Sauípe river that supplied the municipality in Brazil's Bahia state is not possible due to drought, which regularly afflicts the region during the first months of the year.
The former administration of water authority Conagua began construction of a number of flood-control works in Mexico City without previously carrying out the relevant studies, according to the auditor.