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MASS HOUSING

DESIGN STRATEGIES , STANDARDS

S . D. CHAWATHE

Hon. Director (Technical)

Indian Water Works Association

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WATER SUPPLY

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PIPE MATERIALS

CAST IRON

DUCTILE IRON

ASBESTOS CEMENT HIGH DENSITY POLYETHYLENE

MEDIUM DENSITY POLYETHYLENE

LOW DENSITY POLYETHYLENE POLY VINYLE CHLORIDE

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RAIN WATER HARVESTING

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MCGM REQUIREMENTS

Rain Water Harvesting Mandatory for

Buildings Completed after Oct 2002 on

plots exceeding 1000 Sq. M

MCGM will supply only 90 lpcd

Rest 45 lpcd for Flushing and other Non

Potable uses by Rain Water Harvesting

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STORAGE OPTION

Non Monsoon Months : 8

Persons/ Family : 5

Total Storage : 8 X 30 X 45 X 6

= 64800 Lit

= 6 m X 5 m X 2.1 M

Cost @ 3.5 Rs/ Litre = Rs 226000/ Family

Cost is prohibitive.

Is space Available?

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FEASIBLE OPTION

Small Nominal Size Storage Tank with Over

Flow Connection to Open Well / Bore Well

For Direct Ground Water Recharge.Water can then be abstracted back

gradually as required during the year for

Non Potable use.

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In Mumbai, such Recharge is not Feasible at

all locations. Depending on the Geology of

Mumbai, It can be practiced only in the rockyIsland areas and not in the portions which

were filled and reclaimed

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THANK YOU