2017-18 Water Quality Status of Maharashtra The Energy & Resources Institute Water Quality Status of Maharashtra 2017-18 (Compilation of Water Quality Data Recorded by MPCB) January 2019 Prepared by Abbreviations BIS Bureau of Indian Standards BOD Biochemical Oxygen Demand CGWB Central Ground Water Board CPCB Central Pollution Control Board CWC Central Water Commission DO Dissolved Oxygen FC Fecal Coliform GEMS Global Environment Monitoring System GIS Geographical Information System GSDA Ground water Surveys & Development Agency MINARS Monitoring of Indian National Aquatic Resources System MoEF Ministry of Environment and Forests MPCB Maharashtra Pollution Control Board NSFWQI National Sanitation Foundation Water Quality Index NWMP National Water Monitoring Program pH Power of Hydrogen RO Regional Office SD Standards Deviation Shp Shape files SPCBs State Pollution Control Boards SW Surface Water WHO World Health Organisation WQMS Water Quality Monitoring Stations YAP Yamuna Action Plan Table of Contents ABBREVIATIONS ............................................................................................................................ V TABLE OF CONTENTS ..................................................................................................................... 1 LIST OF FIGURES ............................................................................................................................ 4 LIST OF MAPS ................................................................................................................................. 7 LIST OF TABLES .............................................................................................................................. 8 EXECUTIVE SUMMARY ................................................................................................................... 1 Surface Water Quality ..................................................................................................... 2 Ground water Quality ..................................................................................................... 9 INTRODUCTION ........................................................................................................................... 11 Water Pollution ..................................................................................................................... 11 Water Pollution Act ....................................................................................................... 12 National Water Quality Monitoring Program .................................................................. 13 GEMS ............................................................................................................................... 13 MINARS .......................................................................................................................... 13 Monitoring Network ..................................................................................................... 13 WATER QUALITY MONITORING IN MAHARASHTRA .............................................................. 14 Monitoring network in Maharashtra – GEMS and MINARS .................................. 14 METHODOLOGY ........................................................................................................................... 17 Spatial Maps .......................................................................................................................... 18 Sub -basin level maps .................................................................................................... 18 MPCB Regional Office (RO) maps ............................................................................... 18 Organizing and presentation of the data sets ................................................................... 18 Water Quality Index ............................................................................................................. 18 WQI for surface water ................................................................................................... 19 WQI for ground water ................................................................................................... 23 CAGR: Compound Annual Growth Rate .................................................................. 27 SURFACE WATER QUALITY ......................................................................................................... 29 Tapi Basin ............................................................................................................................. 31 Tapi Basin (Intra Basin analysis) .................................................................................. 32 Water Quality Index for WQMS in Tapi Basin .......................................................... 38 Spatial map of Surface WQI at Tapi Basin (April -2017) .......................................... 40 Spatial map of Surface WQI at Tapi Basin (December-2017) ................................... 41 Godavari Basin (1 of 2): Godavari upper, Godavari Middle and Manjra Sub basin .. 43 Godavari Basin (1 of 2) (Intra Basin analysis) ............................................................ 44 Water Quality Index for WQMS in Godavari Basin (1 of 2): Sub-Basin - Godavari Upper ........................................................................................................................ 50 Water Quality Status of Maharashtra 2017-18 Water Quality Index for WQMS in Godavari Basin (1 of 2): Sub-Basin - Godavari Middle and Manjra .................................................................................................. 52 Spatial map of SurfaceWQI at Godavari Basin (1 of 2) (April 2017) ....................... 54 Spatial map of Surface WQI at Godavari Basin (1 of 2) (December 2017) ............. 55 Godavari Basin (2 of 2): Wardha, Weinganga and Pranhita Sub basin ..................... 57 Godavari Basin (2 of 2) (Intra Basin analysis) ............................................................ 58 Water Quality Index for WQMS at Godavari Basin (2 of 2): Sub-basin- Wardha. 64 Water Quality Index for WQMS at Godavari Basin (2 of 2): Sub-basin- Weinganga and Pranhita ............................................................................................................. 66 Spatial map of Surface WQI in Godavari Basin (2 of 2) (April 2017)...................... 68 Spatial map of Surface WQI in Godavari Basin (2 of 2) (December 2017) ............. 69 Krishna Basin ....................................................................................................................... 71 Krishna Basin (Intra Basin analysis) ............................................................................ 72 Water Quality Index for WQMS at Krishna Basin (1 of 2): Sub-basin - Bhima upper (1 of 2) ............................................................................................................................ 78 Water Quality Index for WQMS at Krishna Basin (1 of 2): Sub-basin - Bhima upper (2 of 2) ............................................................................................................................ 84 Water Quality Index for WQMS at Krishna Basin (2 of 2): Sub-Basin - Krishna upper .................................................................................................................................... 90 Spatial map of Surface WQI at Krishna Basin (April 2017) ...................................... 92 Spatial map of Surface WQI at Krishna Basin (December 2017) ............................. 93 West Flowing Rivers ........................................................................................................... 95 West Flowing River Basin (Intra Basin analysis) ....................................................... 96 Water Quality Index of WQMS on West Flowing rivers (1 of 2) .......................... 102 Water Quality Index of WQMS on West Flowing rivers (Coastal basin) (2 of 2)108 Spatial map of Surface WQI of West Flowing rivers (April 2017) ........................ 110 Spatial map of Surface WQI of West Flowing rivers (December 2017) ................ 111 NALLAHS .................................................................................................................................... 113 Water Quality Index for WQMS at Nallah (Coastal basin) .................................... 118 SALINE (SEA AND CREEK) WATER QUALITY .......................................................................... 123 Coastal Basin (Sea/Creek water sample) ................................................................. 124 Water quality Index for WQMS monitoring Sea and Creek water (1 of 2) .......... 134 Water quality Index for WQMS monitoring Sea and Creek water (2 of 2) .......... 136 Spatial map of WQI for Sea and Creek Water (April 2017) ................................... 138 Spatial map of WQI for Sea and Creek Water (December 2017) ........................... 139 GROUND WATER QUALITY ...................................................................................................... 141 Water Quality Index for ground water at Kalyan, Navi Mumbai, Raigad and Thane. .................................................................................................................................. 158 Water Quality Index for ground water at Amravati, Aurangabad and Nashik. 160 Water Quality Index for ground water at Chandrapur and Nagpur. .................. 162 Water Quality Index for ground water at Kolhapur and Pune. ...........................