Nalgonda District (Phase-III), Telangana
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कᴂ द्रीय भूमम जऱ बो셍 ड जऱ संसाधन, नदी विकास और गंगा संरक्षण मंत्राऱय भारत सरकार Central Ground Water Board Ministry of Water Resources, River Development and Ganga Rejuvenation Government of India Report on AQUIFER MAPPING AND GROUND WATER MANAGEMENT Parts of Nalgonda District (Phase-III), Telangana दक्षिणी िेत्र, हैदराबाद Southern Region, Hyderabad भारत सरकार जल संसाधन नदी विकास एिम् गंगा संरक्षण मंत्रालय कᴂद्रीय भूवमजलबो셍ड GOVERNMENT OF INDIA MINISTRY OF WATER RESOURCES RIVER DEVELOPMENT AND GANGA REJUVENATION REPORT ON AQUIFER MAPPING FOR SUSTAINABLE MANAGEMENT OF GROUND WATER RESOURCES IN PARTS OF NALGONDA DISTRICT TELANGANA STATE (Phase-III) CENTRAL GROUND WATER BOARD SOUTHERN REGION HYDERABAD AUGUST-2016 REPORT ON AQUIFER MAPPING FOR SUSTAINABLE MANAGEMENT OF GROUND WATER RESOURCES IN PARTS OF NALGONDA DISTRICT TELANGANA STATE (PHASE-III) CONTRIBUTORS’ PAGE Name Designation Principal Authors Dr.PandithMadhnure : Scientist-D (Sr. Hydrogeologist) Shri G. Praveen Kumar : Scientist-C Shri G. Ravi Kumar : Scientist-C Supervision & Guidance Shri G.R.C Reddy : Scientist -D Dr.P.N.Rao : Supdtg. Hydrogeologist Shri A.D. Rao : Regional Director REPORT ON AQUIFER MAPPING FOR SUSTAINABLE MANAGEMENT OF GROUND WATER RESOURCES IN PARTS OF NALGONDA DISTRICT TELANGANA STATE (PHASE-III) EXECUTIVE SUMMARY C O N T E N T S Chapter No. Content Page No. 1 INTRODUCTION 1-4 1.1 Objectives 1 1.2 Scope of the study 1 1.3 Area Details 1 1.4 Climate and Rainfall 2 1.5 Geomorphological Set up 2 1.6 Drainage and Structures 2 1.7 Land use and Cropping Pattern 2 1.8 Soils 2 1.9 Prevailing water conservation/recharge practices 2 1.10 Geology 2 2 DATA COLLECTION and GENERATION 5-14 2.1 Hydrogeology 6 2.1.1 Ground water Occurrences and Movement 7 2.1.2 Exploratory Drilling 7 2.1.3 Ground water Yield 7 2.2 Water Levels 7 2.2.1 Water Table Elevations 7 2.2.2 Depth to Water Levels (DTW) 7 2.2.3 Water Level Fluctuations 7 2.3 Long term water level trends (2006-15) 10 2.4 Geophysical 10 2.5 Hydro chemical 10 3 DATA INTERPRETATION, INTEGRATION and 15-21 AQUIFER MAPPING 3.1 Conceptualization of aquifer system in 3D 18 3.2 Hydrogeological sections 18 3.3 Aquifer Characterization 20 3.3.1 Weathered Zone 20 3.3.2 Fractured Zone 20 4 GROUNDWATER RESOURCES 22-24 5 GROUND WATER RELATED ISSUES and REASONS 25-26 FOR ISSUES 5.1 Issues 25 5.2 Reasons for Issues 25 6 MANAGEMENT STRATEGIES 27-31 6.1 Management Plan 27 6.1.1 Supply side Measures 27 6.1.1.1 Artificial Recharge Structures 27 a) Priority-1 29 b) Priority-2 29 6.1.1.2 Water Conservation Measures 29 6.1.1.3 Mission Kakatiya 29 6.1.1.4 Mission Bhagiratha 29 6.1.1.5 Construction of additional bore wells in 30 command area 6.1.2 Demand side Measures 30 6.1.3 Other Measures 30 6.2 Expectedcommand Results area and Outcome 31 Figures Figure-1.1 Location of study area. 2 Figure-1.2 Geomorphology of Study area. 3 Figure-1.3 Drainage with watershed and mandal boundaries. 3 Figure-1.4 Soils of Study area. 4 Figure-1.5 Geology of Study area. 4 Figure-2.1 Hydrogeological map of study area 6 Figure-2.2 Water table elevations (Pre and Post-monsoon-2015). 8 Figure-2.3 Depth to water levels Pre-monsoon (May-2015). 8 Figure-2.4 Depth to water levels Post-monsoon (November-2015). 9 Figure-2.5 Water Level Fluctuations (m) (Nov with respect to May-2015). 9 Figure-2.6 Long-term water level trends 92006-15) 10 Figure-2.7 Distribution of Electrical conductivity (Pre-monsoon-2015). 11 Figure-2.8 Distribution of Electrical conductivity (Post-monsoon-2015). 12 Figure-2.9 Distribution of Nitrate (Pre-monsoon-2015). 12 Figure-2.10 Distribution of Nitrate (Post-monsoon-2015). 13 Figure-2.11 Distribution of Fluoride (Pre-monsoon-2015). 13 Figure-2.12 Distribution of Fluoride (Post-monsoon-2015). 14 Figure-3.1 Location map of hydrogeological/geophysical data points. 15 Figure-3.2 3-D Model for study area. 16 Figure-3.3 Panel Diagram of study area. 17 Figure-3.4 Map showing orientation of various sections. 17 Figure-3.5 Conceptualization of Aquifer systems in typical Granite-Gneissic 18 Complex (BGC). Figure-3.6 Hydrogeological section NE-SW direction 19 Figure-3.7 Hydrogeological section NW-SE direction 19 Figure-3.8 Hydrogeological section E-W direction 19 Figure-3.9 Thickness of Weathered zone 20 Figure-3.10 Depth of Fractured zone (Maximum depth) (mbgl). 21 Figure-3.11 Depth wise distribution of fractures. 21 Figure-4.1 Utilizable Groundwater Resources. 24 Figure-6.1 Hydrogeological characterization of area for management plan. 28 Table Table-2.1 Brief activities showing data compilation and generations 5 Table-2.2 Long-term water level trends 10 Table-4.1 Computed Dynamic, In-storage ground water resources 23 Table-6.1 Hydrogeological characteristics of area 28 Annexure-1 Mandal wise ground water resources of the area. Annexure2 Village wise aquifer management plan for priority-1 area Annexure-3 Village wise aquifer management plan for priority-2 area : : : REPORT ON AQUIFER MAPPING FOR SUSTAINABLE MANAGEMENT OF GROUND WATER RESOURCE SIN PARTS OF NALGONDA DISTRICT TELANGANA STATE (PHASE-III) AT A GLANCE S.No. Item Particulars 1 Districts : Nalgonda 2 Mandals : 8 (Anumula, Chandam Pet, ChinthaPalle, Devarakonda, GundlaPalle, Gurrampode, PeddaAdiserlaPalle and Peddavoora) 3 Revenue villages : 191 4 Geographical area : 3061 Km2 5 Population : ~4.66 lakhs 6 Locations : North Latitude 16°21´12.88"-16°58´34.15" and East Longitude 78°36´41"-79°30´46.53" 7 Major Rivers : The Krishna 8 Other Rivers : The Dindi, The Peddavagu 9 Minor Irrigation tanks : 724 tanks with 12640 ha ayacut. 10 Climate and rainfall (mm) : Tropical climate 11 Rainfall (Normal) : Normal rainfall 538-736 (avg:626) Rainfall (2015) Varies from 435-696 mm (avg:532 mm) -14% less than normal rainfall. 12 Geomorphology : Pedi plains (51 %), pediments (15%), Denudational hills (7%) etc. 13 Major crops (Khariff season) : Paddy (15%), Cotton, Jowar, maize etc. 14 Major crops (rabi season) : Paddy (74%) 15 Soils : Well drained gravelly loamy soils (31%), calcareous soils (21%) and clay soils (15%). 16 Geology : Granites and Gneisses (90%) with intrusive rocks (dolerite,andGabbro‘s) and quartzite’s (10%) 17 Prevailing water conservation/recharge practices : PTs:540, CD’s:200 and Farm ponds & other structures:75 18 Depth to water Table Elevations (m amsl)-2015 : 96.3-416.5 (pre) and 96.6-414.6 (post). 19 Depth to water levels (2015) (m bgl) : Pre-monsoon:0.6-21.1 (avg:8.6) Post-monsoon:1.7-23.4 (avg:8.7) 20 Majority of water levels : Pre-monsoon:5-10 m bgl (57 % of area) Post-monsoon:5-10 m bgl (53 % of area). 21 Water Level Fluctuations (m) : 58% of area shows rise in water levels (< 2 to >5 m) and in rest of the area shows fall in water levels. 22 Long-term water level trends (2006-15) m/yr : Pre-monsoon: Falling @0.1 to 0.7 and rising 0 .15 Post-monsoon: Rising @ 0.07 to 0.2 and falling 0.34 23 Ground water yield (lps) : 0.1 to 7 24 Number of bore wells : CGWB Exploratory/Observation wells 20 Agricultural wells 33631 25 Groundwater Quality 2015 25.1 EC (Ω Siemen’s/cm) : Pre-monsoon: 420-3940, Post-monsoon: 254-6180 25.2 Nitrate (mg/L) Pre-monsoon: 3-465, Post-monsoon: 1-531 25.3 Fluoride (mg/L) Pre-monsoon: 0.3-3.9, Post-monsoon:0.1-4.8 26 Conceptualization Weathered zone Fractured zone 26.1 Depth (m bgl) : Up to 20 20-134 27 Transmissivity (m2/day) : 8-633 28 Specific yield (%) : 2 - 29 Storativity : - 0.0001 to 0.01 30 Dynamic GW Resources-2013 (MCM) : Command Non-Command Total 30.1 Net dynamic groundwater availability : 167.12 111.82 278.94 30.2 Gross GW Draft : 82.86 78.25 161.11 30.3 Provision for Domestic &Industrial (2025) : 7.41 8.19 15.60 30.4 Stage of Ground water development (%) 49.6 70 Avg:57.8 31 In storage GW Resources : 73.5 MCM 32 Ground water related issues : High fluoride, high nitrate, over-exploitation, deep water levels, low sustainability, water marketing, 33 Sustainable Groundwater management Plan : Supply side measures 874 ARS with ~65.55crores. Water Conservation measures (WCM) Farm Ponds.3820 nos with total cost of 9.55 crores. Mission Kakatiya Repair Renovation and Restoration of 273 tanks with ~90 crores cost and created additional 4.16 MCM of storage capacity. The net ground water recharge will be 1.25 MCM. Remaining ~451 tanks are recommended for desilting under mission Kakatiya. Mission Bhagiratha Additional ~17 MCM of surface water into the basins which will save ~10.21 MCM of ground water from the area and can be effectively utilized to bring additional 1700 ha of land under ID crops. Construction of 1700 additional bore wells of 100 m depth with 34 crores cost in command area. Demand side measure Adaptation of micro-irrigations practices in 26000 ha area saved ~ 50 MCM of ground water from the basin. Additional 2658 MI are recommended with 15.9 crores cost. Change in cropping pattern from paddy to other ID crops during khariff season and complete ban on paddy during rabi season in non-command areas.