An MPCB report submitted on May 24 revealed that out of the 168.2 million liters per day (MLD) of domestic sewage generated along the river stretch, only 93.9 MLD is treated. This leaves 67.3 MLD untreated, with 62.65 MLD discharged into the river. PCMC contributes 32.68 MLD of this discharge. The report identified inadequate drainage networks and insufficient treatment facilities as major pollution factors.

The PMRDA’s lawyer informed the bench of letters sent to PCMC and MIDC requesting measures to curb pollution. However, discrepancies in information led to the NGT’s demand for clarity. PMRDA also reported that a detailed project report costing Rs 583.23 crore for river conservation is awaiting approval from the central government.