Status of Ground Water Levels in Maharashtraand Ut of Dadra & Nagar Haveli During May 2015 (वा�षर्क �क्रयलाप : 2015-2016) (Aap : 2015-2016)
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कायार्ययीन उययगहेत For Official Use Only 1909/GWM/2015 भारतसरकार जलसंसाधन,नद� �वकास और गंगा संर�ण मंत्रा क� द्र�यभू�मजलबो GOVT OF INDIA MINISTRY OF WATER RESOURCES, RIVER DEVELOPMENT AND GANGA REJUVINATION CENTRAL GROUND WATER BOARD महाराष्ट्र राज्य व संघ शा�दत प्रदेश दादरा एव हवतल� म� माह मई-2015क� भयजल स्तर सस्तन STATUS OF GROUND WATER LEVELS IN MAHARASHTRAAND UT OF DADRA & NAGAR HAVELI DURING MAY 2015 (वा�षरकन �क्रय्ाउन: 2015-2016) न न (AAP : 2015-2016) मध्य �े, नागपरु न CENTRAL REGION, NAGPUR July 2015 STATUS OF GROUND WATER LEVELS IN MAHARASHTRA AND UT OF DADRA & NAGAR HAVELI DURING MAY 2015 C O N T E N T S Sl. No CHAPTERS Page No. Executive Summary I Introduction 1 II Depth to Water Level during May 2015 3 III Water Level Fluctuation in May 2015 with reference to May 2014 4 IV Water Level Fluctuation in May 2015 with reference to January 2015 5 V Water Level Fluctuation in May 2015 with reference to the Decadal Mean 6 of 2005-2014 ANNEXURES I Depth to Water Level - Distribution of Percentage of Observation Wells during May 2015 in MaharashtraState and UnionTerritory of Dadra & Nagar Haveli II District wise Fluctuation and Frequency Distribution of Water Levels (May 2015 to May 2014) in Maharashtra State and Union Territory of Dadra & Nagar Haveli III District wise Fluctuation and Frequency Distribution of Water Levels (May 2015 to Jan 2015) in Maharashtra State and Union Territory of Dadra & Nagar Haveli IV District-wise Fluctuation of May 2015 Water Level with the Decadal Mean (2005– 2014) in Maharashtra State and UT of Dadra & Nagar Haveli V District-wise Depth to Water Level in Dug wells and Piezometers during Nov-2014, Jan-2015 and May-2015 in Maharashtra State and UT of Dadra & Nagar Haveli PLATES I Depth to Water Level during May 2015 II Water Level Fluctuation in May 2015 with reference to May 2014 III Water Level Fluctuation in May 2015 with reference to January 2015 IV Water Level Fluctuation in May 2015 with reference to the Decadal Mean of May 2005-2014. EXECUTIVE SUMMARY Central Ground Water Board, Central Region, monitors ground water levels through a network of about 1763 National Ground Water Monitoring Wells spread over the State of Maharashtra and the Union Territory of Dadra & Nagar Haveli four times in a hydrological year (August, November, January and May). The present report gives an overview of the status of ground water levels in Maharashtra and Dadra and Nagar Haveliduring the pre-monsoon period (20th to 30th May 2015). The monitoring of ground water regime during May is particularly important in order to assess the status of ground water levels before the onset of monsoon i.e., Pre-monsoon period. It gives the deepest ground water level disposition in the area. Depth to water level ranges from near to ground level in Satara, Sangli, Raigadh, Nashik, Nandurbar, Kolhapur, Thane districts to more than 50 metres below ground level (m bgl) at Jalgaon & Latur district in Maharashtra and from 3.1 to 14.2 m bgl in the Union Territory of Dadra and Nagar Haveli.Water levels of less than 2 m bgl is observed in 3 % of wells covering about 1,905 sq. km. area. About 27% of wells covering about 37,625 sq. km. area show water levels between 2 and 5 m bgl. About 49 % of wells covering an area of 1,81,556 sq. km show water levels between 5 and 10 m bgl. Deeper ground water levels, ranging from 10 to 20 m bgl are observed in 26% of wells covering about 82,012 sq. km. while ground water levels of more than 20 m are observed in 2.1% of wells covering about 4,122 sq. km. The depth to water level during May 2015 has been compared with depth to water level for the month of Jan-2015, May-2014 and decadal mean of May water level for the period from 2004 to 2015. A relative fall in DTWL with respect to Jan-2015 has been observed as a natural phenomenon. Similarly, about 66 % of wells covering about 2,05,289 sq km area have shown fall in water levels when compared to May 2014. When compared with the decadal mean of May water levels (2005-2014), significant fall in DTW is obseved in parts of Marathwada and Madhya Maharastra Regions. This indicates the severe probable scarcity areas during summer-2015 till monsoon arrives. STATUS OF GROUND WATER LEVELS IN MAHARASHTRA AND UNIONTERRITORY OF DADRA & NAGAR HAVELI DURING MAY 2015 I. INTRODUCTION Central Ground Water Board (CGWB) monitors ground water levels all over the country four times a year in order to bring out spatial and temporal changes in the ground water regime. This continuous monitoring provides a valuable tool to decipher the seasonal and long-term changes in ground water levels and in turn helps in managing the ground water resources in a more scientific and effective manner. The Central Ground Water Board, Central Region, Nagpur, monitors about 1763 Ground Water Monitoring Wells (GWMW) established in the State of Maharashtra and the Union Territory of Dadra & Nagar Haveli. These stations are monitored four times in a given hydrological year in the months of August, November (post-monsoon), January and May (pre-monsoon). The long-term data generated during these monitoring seasons are important for computation, comparison and analysis of ground water utilization and its availability. During the monitoring, 1612 active GWMW (1418 DW and 194 Pz) were and monitored out of about 1763 GWMW spread over entire Maharashtra and UT of Dadra & Nagar Haveli. The district wise status of GWMW for the month of May-2015 is presented in Table 1. The present report provides an analysis of the ground water level data monitored during May 2015 and compared with those of May 2014, January 2015 and the decadal (2005-2014) mean of the May water levels. The monitoring of ground water regime during the month of May is particularly important in order to assess the status of ground water levels before the onset of monsoon i.e., Pre-monsoon period. It gives the deepest ground water level disposition in the area. Also, it gives the volume of unsaturated aquifer, which is supposed to replenish naturally by the monsoon rainfall. The State comprises of four meteorological sub-divisions namely Konkan, Madhya Maharashtra, Marathwada and Vidarbha. The State receives rainfall during the southwest monsoon season (June to September). 1 Table 1: Status of Ground Water Monitoring Wells, Maharashtra and UT of DNH, Month- MAY-2015 Sl. No. District Active Dry Wells Not Total Monitored# DW Pz DW Pz DW Pz DW Pz 1 AHMEDNAGAR 47 16 3 1 0 5 50 22 2 AKOLA 25 7 5 0 2 2 32 9 3 AMRAVATI 66 10 1 2 2 6 69 18 4 AURANGABAD 21 1 7 1 0 0 28 2 5 BEED 31 1 7 2 0 0 38 3 6 BHANDARA 28 4 5 0 1 0 34 4 7 BULDHANA 40 13 5 0 7 1 52 14 8 CHANDRAPUR 54 9 5 0 4 2 63 11 9 DHULE 28 4 7 0 1 1 36 5 10 GADCHIROLI 37 1 2 0 24 2 63 3 11 GONDIA 23 5 1 0 7 0 31 5 12 HINGOLI 25 0 5 0 0 0 30 0 13 JALGAON 34 2 11 0 0 2 45 4 14 JALNA 11 3 13 1 3 2 27 6 15 KOLHAPUR 37 0 0 0 0 0 37 0 16 LATUR 32 5 3 1 1 36 6 17 MUMBAI 4 0 0 0 0 0 4 0 18 NAGPUR 63 17 2 0 0 2 65 19 19 NANDED 34 2 17 0 4 0 55 2 20 NANDURBAR 23 1 3 0 0 0 26 1 21 NASHIK 66 10 9 0 0 0 75 10 22 OSMANABAD 25 3 12 0 1 0 38 3 23 PARBHANI 24 3 6 0 6 36 3 24 PUNE 36 2 3 0 9 1 48 3 25 RAIGAD 35 1 0 4 1 40 1 26 RATNAGIRI 58 3 5 0 5 1 68 4 27 SANGLI 45 0 3 0 2 3 50 3 28 SATARA 45 0 3 0 2 3 50 3 29 SOLAPUR 48 5 6 0 3 0 57 5 30 SINDHUDURG 48 1 2 0 4 0 54 1 31 THANE 38 2 10 1 3 1 51 4 32 WARDHA 38 12 4 0 6 4 48 16 33 WASHIM 24 6 9 0 2 2 35 8 34 YAVATMAL 48 18 5 4 5 2 58 24 MAHARASHTRA 1241 166 180 13 108 43 1529 222 35 D & NH 11 0 1 0 0 0 12 0 TOTAL 1252 166 181 13 108 43 1541 222 #Here, Wells not Monitored due to various reasons like well not approachable, lock jam, outside water added, well filled up, well fitted with pump, disturbed law & order conditions etc. 2 As per the IMD, RMC, Mumbai the departure of monsoon rainfall from normal rainfall for the period 1st June 2014 to 30th September 2014 from 34 districts of Maharashtra has been considered to correlate the ground water level scenario. It is observed that entire Maharashtra has received ‘normal rainfall’ with negative departure from -6 % to -14% except Marathwada region which has received ‘deficient rainfall’ with negative departure up of -42%. The Khandesh and Western Maharashtra region have received normal rainfall with negative departure of 7%.