RECHARGE TRENCH METHOD

Similar to recharge pit but logitudinal in shape
Size : 0.5 - 1 m wide 1 - 1.5 m depth. Length may vary from 1.0 - 5.0 km
Filled with broken bricks /pebbles
Suitable for sandy sub-soil area

RECHARGE TRENCH WITH BORE METHOD

Along the recharge trench boreholes has to be drilled
Borehole interval 10 -15 feet
Suitable for clay area

NOTE :
1. Above structures are meant for area with large catchment like apartments / big complexes
2. RCC slab cover is optional
3. Top (1") portion may be filled with sand

RECHARGE WELL METHOD (SHALLOW /SMALL)

Meant for large areas with heavy run-off
Size : 3' dia with 5' - 10' depth
Constructed with brick / concrete rings
Side walls must be perforated
Bottom (1") is filled with broken brick
Covered with RCC slab /manhole
Suitable for sandy sub-soil area

NOTE :
1. For areas with clay/hard rock formations recharge wells with large diameter (5 feet)/depth (10-15 feet) has to be constructed.(cost Rs.7,500/-)
2. Run-off water diverted through a filter media preferably.
3. One well is sufficient for areas with one ground extent.
4. Rain Water from the open spaces may be diverted through small trenches.

Harvest Rain Water to Conserve Ground Water.

BACK