XML 79 R65.htm IDEA: XBRL DOCUMENT v3.21.1
28 Operating revenue (Tables)
 12 Months Ended
Dec. 31, 2020
Operating Revenue  
Schedule of operating revenue
2020 2019 2018
       
Metropolitan Region of São Paulo 10,722,384 11,849,776 10,295,509
Regional Systems 4,435,396 4,284,256 3,958,100
Total 15,157,780 16,134,032 14,253,609
Schedule of reconciliation between gross operating income and net operating income
2020 2019 2018
       
Revenue from sanitation services (i) 15,157,780 16,134,032 14,253,609
Construction revenue 3,716,616 2,946,566 2,802,670
Sales tax (1,009,358) (1,035,051) (916,808)
Regulatory, Control and Oversight Fee (TRCF) (67,497) (61,893) (54,377)
Net revenue 17,797,541 17,983,654 16,085,094

 

  (i) Includes the amount of R$ 72,962 corresponding to the TRCF charged from customers from the municipalities regulated by ARSESP (R$ 70,122 in 2019).