भारत सरकार Government of India जल शक्ति मंत्रालय Ministry of Jal Shakti जल संसाधन, नदी विकास और गंगा संरक्षण विभाग Department of Water Resources, River Development & Ganga Rejuvenation के न्द्रीय भूवम जल बो셍ड CENTRAL GROUND WATER BOARD GROUND WATER YEAR BOOK OF CHHATTISGARH 2019-20 North Central Chhattisgarh Region Raipur 2020 FOREWORD Central Ground Water Board, North Central Chhattisgarh Region, Raipur monitors the water levels in the State four times a year through a network of 1055 number of observation wells (both dug wells and piezometers). Water quality is also assessed once in a year. The generated data from these observation wells are compiled, analysed and presented in the form of reports from time to time and circulated to various Central and State Government Departments. The present report embodies data and information collected during monitoring in the year 2019-20. The report has been compiled and prepared by Smt. Prachi Gupta, Scientist ‘B’ (Jr. Hg.) and Sh Uddeshya Kumar, Scientist ‘B’ (Jr. Hg.) under the guidance and supervision of Sh. A. K. Biswal, Scientist-D & Head of the Office. I appreciate the efforts put by the officers in bringing out this report. The water level data, sample collection and analysis were done by the officers of CGWB, NCCR Raipur. I am sure this report will be of immense use to all the stakeholders of groundwater in the State. (Sh. A. K. Biswal) Head of the Office, CGWB, NCCR, Raipur CONTENTS Chapter Page No’s 1. INTRODUCTION 1-2 2. GEOMORPHOLOGY 3-5 2.1 Physiography 3-4 2.2 Drainage 4-5 3. CLIMATE AND RAIN FALL 6-8 3.1 Rainfall 6-7 3.2 Temperature 8 4. SOIL AND LAND USE 8-10 4.1 Soil 8-9 4.2 Land use 10 5. HYDROGEOLOGICAL CONDITIONS 11-16 5.1 Consolidated formations 14-15 5.2 Semi-consolidated formations 15 5.3 Un-consolidated formations 15 6. GROUND WATER REGIME MONITORING 17-19 6.1 Distribution of Hydrograph Stations (NHS) 17 7. ANALYSIS OF WATER LEVELS 20-63 7.1 Depth to water level 21-32 7.2 Water level fluctuations 33-43 7.3 Water level fluctuation with reference to Pre-monsoon water 44-51 levels 7.4 Water level fluctuation with reference to decadal mean 52-61 7.5 Long term water level trend (2001-2010) 62-63 8. GROUND WATER QUALITY MONITORING 63-74 8.1 Factors controlling ground water quality 63-65 8.2 Hydro chemical quality evolution 65 8.3 Ground water quality sampling 66-67 8.4 Results and Discussions 67-74 ANNEXURES I Depth to water level of National Hydrograph Stations 75-93 II Water quality data for National Hydrograph Monitoring Stations 94-113 1. INTRODUCTION The State of Chhattisgarh lies between North Latitude 17°47’ to 24°06’ and East Longitude 80°14’ to 84°24’ (Fig. 1.1). Central Ground Water Board, North Central Chhattisgarh Region, Raipur is carrying out ground water regime monitoring in the State. The State covers a geographical area of 1,37,360 sq. km. Nearly 65.90 % of the total area is covered by tribal and hence it is said as tribal dominated State. The ground water regime is monitored through a network of observation dug wells and piezometers. Dug wells represent the shallow phreatic aquifer system whereas piezometers represent the shallow un-confined as well as deeper semi-confined aquifer system. The network of observation stations forms a part of All India Network Hydrograph Stations (NHS), which is being monitored by various Regional offices of the department, located at different parts of the country. As on March 2020, a network of 1055 observation wells (both dug wells and purpose-built piezometers) are monitored four times a year. The monitoring includes measurement of ground water level and quality. The purpose is to observe the behavior of ground water and their levels in different hydro geological environments in order to estimate the ground water resource from time to time and to know the water quality changes. The monitoring database on water levels and chemical parameters helps to simulate models of forecasting, planning and management of ground water resources. The behavior of the ground water level and chemical quality analyzed during the period from May 2019 to January 2020 is presented in this report with the idea that it will enable the user agencies to plan the development strategy for optimum utilization of ground water resources in the state. 1 Uttar Pradesh Rihand R Banas R Gopad R Balrampur Jharkhand Kanher R 0 50 100 Koriya Surajpur Surguja 23° kilometres 00' Jashpur Ib R Tan R Madhya Pradesh Hasdeo R Arpa R Korba Mand R Agar R 22° Hanp R Bilaspur Mungeli Janjgir-Champa Raigarh Barai R 00' Kawardha Kelo R Bemetara M a h a n a d i R Baloda Bazar Jonk R Kharun R Raipur S e o n a t h R Rajnandgaon Durg Mahasamund 21° 00' PAIRI R Balod M a h a n a d i R Odisha Dhamtari Gariyaband Kanker Kotri R 20° Maharashtra 00' L e g e n d District HQ Narayanpur Kondagaon District boundary Narangi N State boundary I n d r a v a t i R Drainage Road 19° Berudi N Jagdalpur 00' Railway Dantewada Bijapur Andhra Pradesh Sabari R Sukma Chinta R 18° 00' Central Ground Water Board North Central Chhattisgarh Region Ministry of Water Resources Government of India 2 81° 00' 82° 00' 83° 00' 84° 00' 85° 00' Fig 1.1 Administrative divisions of Chhattisgarh State 2. GEOMORPHOLOGY 2.1 Physiography Physiographically, Chhattisgarh can be divided into three distinct units i.e. i) Bastar plateau region on the southern part, ii) Chhattisgarh Plain region on the central part and iii) Northern hilly region on the northern parts of the State. The Bastar Plateau Region It covers Bastar, Kondagaon, Narayanpur, Kanker, Bijapur, Sukma and Dantewada districts lying on the southern parts of the State. Except Indravati River plains, most of the area is covered by evergreen dense reserve forests and hilly tracts. The major landforms are high-level plateaus, structural hills and valleys and pediments and pediplains. The altitude varies from 400 to 600 m amsl. In the plains of Indravati River covering central parts, and along the Shabri River, covering southeastern parts the altitude varies from 250 to 300 m amsl. The Chhattisgarh Plain It is spread over the central part of the State and covers parts of Bilaspur, Mungeli, Janjgir-Champa, Mahasamund, Dhamtari, Raipur, Balodabazar, Gariyaband Durg, Balod, Bemetara, Rajnandgaon and Kawardha districts. It forms the structural plains on Proterozoic rocks and matures Pediplain with remnants of few isolated hills and ridges in between flood plains of numerous tributaries of Mahanadi River system. It is characterized by a gently undulating and flat terrain. The overall altitude varies from 750 m amsl on northwestern parts of the area to 284 m amsl on southeastern parts. Northern Hilly Region It covers from north to the north central part of the area and occupies parts of Sarguja, Balrampur, Surajpur Koriya, Korba, Bilaspur, Jashpur and Raigarh districts. It is a part of Maikal and Hazaribagh hill ranges of central India. It represents structural plains of Gondwana rocks, pediment/pediplains, structural and denudational plateaus, structural and denudational hills and valleys. It supports north flowing tributaries of Son River and south flowing Hasdeo and other tributaries of Mahanadi River. The 3 Narmada, an important west-flowing River of central India, originates from Amarkantak in the central part of this physiographic unit. The highest point in the State is 1197 m amsl at Tulisi Dongri range in Dantewada district and the lowest point is 50 m amsl at Konta in Dantewada district. 2.2 Drainage The major Rivers flowing in Chhattisgarh State are given in Table 2.1. The Mahanadi River and its tributaries Seonath, Hasdeo, Mand and Arpa drain part of Raipur, Durg, Rajnandgaon, Bilaspur, Raigarh and Surguja districts. The Indravati River is a tributary to Godavari River and drains the districts of Kanker, Bastar and Dantewada. Most of the Rivers are perennial in nature. In general, the drainage patterns are dendritic, parallel, angular and radial types. Son is the tributary of Ganga River and drains part of Sarguja and Koriya districts. Fig. 2.1 shows the physiography and drainage pattern existing in the area. Table 2.1: Major River Basins in Chhattisgarh State S.No. Major Rivers Tributaries Districts 1. Ganga Son Surguja, Koriya, Jashpur and Bilaspur 18407 Sq.Km. 2. Mahanadi Ib, Hasdeo, Raipur, Mahasamund, Dhamtari and parts 75858 Sq.Km. Seonath, of Durg, Rajnandgaon, Kawardha, Korba, Tel, Mand Kanker, Bastar, Surguja, Ramgarh and Bilaspur. 3. Godavari Indravati, Parts of Durg,Bastar, Rajnandgaon, 38694 Sq.Km. Sabari Kanker and Dantewada Wain ganga 4. Narmada Narmada Parts of Rajnandgaon, Bilaspur, and 744 sq.Km. Kawardha 5. Bramhani Sankh Part of Jashpur 1394 sq.Km. 4 5 3. CLIMATE AND RAINFALL 3.1 Rainfall The region is endowed with sub-tropical monsoon climate with three distinct seasons i.e. summer, monsoon, and winter. The southwest monsoon starts from June and continues till middle of September. Winter season spreads from October to February. Summer season extends from March to middle of June. Rainfall is the major source of ground water recharge in the area and receives maximum (85%) rainfall during the southwest monsoon season. The winter rainfall is meager (10 - 15%). Table 3.1 DISTRICT WISE AVERAGE ANNUAL RAINFALL (mm) OF CHHATTISGARH Sl. Year District Average No. 2014 2015 2016 2017 2018 1 Balod - - 1527.4 1425 1246.5 1399.63 2 Baloda bazar - - 855.2 690.9 1043.4 863.17 3 Bastar 1476.6 1538.5 1821.6 1583.1 1460.1 1575.98 4 Bemetara - - 1147.4 1162.7 1427.3 1245.80 5 Bijapur 1696.5 1675.1 1693.8 1241.3 2126.6