Based on various Field Survey ...

Based on various Field Survey Groundwater contouring can be done by using Software’s to identify regional as well as local groundwater flow direction and delineate contaminants pathways. In this longitude & latitude of groundwater well is determined using GPS. Groundwater monitoring involves, the continuous monitoring of production, water quality and water levels in water wells. With the help of monitoring we can determine the annual and long term changes in groundwater storage, estimate recharge rate and can also determine the direction and gradient of groundwater flow. Hence proper design & identification of monitoring wells is very necessary. Beside that groundwater monitoring is also a mandatory condition for industries having MOEF and CGWA clearance.

Advantages of Rainwater harvesting:

There are various advantages of Rain Water recharging from which some of those are listed below:

• Groundwater is not directly exposed to evaporation and pollution
• The aquifer serves as distribution system also
• Mitigates the effects of drought
• Effective rise in ground water levels
• It’s economical and energy saving as it prevents extraction of water from depleting ground water table
• Reduce soil erosion
• It reduces flood hazards
• Storing water underground is environmental friendly

Methods and Technique

The methods of groundwater recharge mainly are:

Urban areas

Roof top rainwater/Strom run off harvesting through

• Recharge Pit
• Recharge trench
• Tube well
• Recharge wel

Rural areas

Rainwater Harvesting through

• Gully Plug
• Contour band
• Gabion Structure
• Percolation Tank
• Check Dam / Cement Plug / Nala Bund
• Recharge Shaft
• Dug well Recharge
• Groundwater Dams / Subsurface Dyke