ITU‐T's Technical Reports and Specifications 875 I. Environmental sustainability and climate change #Topics #Subtopic #Indicator #Unit of measurement B. Sanitation and drainage B.1 Sanitation coverage 7. Percentage of households with a home connection to the sewer system % B.2 Wastewater treatment 8. Percentage of wastewater that is treated according to national standards % B.3 Effectiveness of drainage 9. Percentage of dwellings damaged by the most intense flooding in the last 10 years % C. Solid waste management C.1 Solid waste collection coverage 10. Percentage of population with regular municipal solid waste collection % C.2 Adequate final disposal of solid waste 11. Percentage of the city's municipal solid waste disposed of in sanitary landfills % 12. Remaining life of the site where the landfill is located Years 13. Percentage of the city's municipal solid waste that is disposed of in open dumps, controlled dumps, or bodies of water or is burnt % C.3 Treatment of solid waste 14. Percentage of the city's municipal solid waste that is composted % 15. Percentage of the city's municipal solid waste that is separated and classified for recycling % 16. Percentage of the city's municipal solid waste that is used as an energy resource % D. Energy D.1 Energy coverage 17. Percentage of the city's households with an authorized connection to electrical energy % 18. Percentage of the city's households with an authorized connection to the network of natural gas supply % 19. Average number of electrical interruptions per year, per customer #/yr/customer 20. Average length of electrical interruptions hr/customer