Enel Generación will respond to monitoring charges.
The José "Pepe" Fierro plant is reportedly around 18% complete.
The country's economic policy council passed two resolutions allowing the national government to seek external financing for the first phase of the Buenaventura water system and a wastewater treatment program for four municipalities in Caldas and Risaralda departments.
The US$72mn project in Santa Fe province involves the installation of 108km of pipelines and the expansion of a potable water plant that was built during the first stage.
Current legislation bars the country from importing any type of solid waste, but the local plastics industry is calling for a relaxation of the regulation.
Based on the bill, local water utility Sacmex will be mandated to install special equipment for rainwater harvesting in all public buildings of the city, the congress said in a release.