Moreover, the sewage system is being rehabilitated in different cities and towns of Absheron peninsula. The problem of rainwater collectors in Baku City that used to mix some faecal waters and drain into Baku Bay has been addressed, and sewage mixing w as discontinued w ith a consequent decrease in contamination loads at the bay. As a result of all the above measures, the bathing w'ater quality of the Caspian Sea is improving, but much work remains to be done both in Baku City (4 other WWTP) and on the Absheron peninsula.