Skip to content

Rainwater harvesting · Faridabad

Rainwater harvesting in Faridabad

Faridabad draws far more groundwater than rain puts back, and a December 2023 Tribune report found that about 75% of the city's rainwater harvesting systems were not working. Most buildings already have pits on paper; what they need is a system that actually takes water in. TerraSetu, an engineering and construction firm based in Gurugram, designs and builds rooftop rainwater harvesting and recharge systems across Faridabad, and repairs old ones that have stopped working.

Reviewed by Mohit Parmar, Civil Engineer, TerraSetu · Last checked

Call +91 97119 61946WhatsApp usAll services

Why Faridabad needs it

  • The Central Ground Water Board puts Faridabad district's groundwater use at 175% of what can safely be taken out each year (2025), which it rates over-exploited. See the groundwater page.
  • Faridabad gets about 803 mm of rain in an average year, 82% of it from June to September. A 100 m² roof can put about 68,255 litres a year back into the ground.

The rules in Faridabad

  • Under the Haryana Building Code, 2017, roof rainwater harvesting is required inside the plot wherever the rooftop area is 100 sq m or more. Recharge is mandatory for all building types, including group housing on plots over 500 sq m, and for common open areas such as parks and parking. DTCP has made RWH pits a condition for the occupation certificate.
  • In CGWA-notified areas, which include Faridabad and Ballabgarh, group housing, institutions, schools, hotels, industries and farmhouses were also directed to adopt rooftop rainwater harvesting.
  • Industries, hospitals, schools, hotels and housing societies that use groundwater also need permission from the Haryana Water Resources Authority, which asks for a recharge proposal where water is deeper than 8 m. Read the full rainwater harvesting rules in Haryana.

What Faridabad's buildings need

On the Aravalli side, around Surajkund, Pali and Anangpur, rock is close to the surface and the bore has to be drilled through it to reach water-bearing layers. On the Yamuna side, around Ballabgarh and Tigaon, soil is softer and water is shallower, so pits and shorter bores work.

The city's industrial areas, from Sector 24 to Sector 58 and along the Mathura Road, have large roofs that can put millions of litres a year back into the ground, which is also what their groundwater permission asks for.

What rainwater harvesting costs in Faridabad

Priced with 120 ft recharge bores and 803 mm of rain a year. The number of recharge points follows the roof area.

BuildingRoof areaRecharge pointsWater put back a yearCost with GST
Independent house100 m² (1,076 sq ft)168,255 litres₹1.1 lakh to ₹1.7 lakh
Large house or villa250 m² (2,691 sq ft)11,70,638 litres₹1.1 lakh to ₹1.7 lakh
Small apartment block or office600 m² (6,458 sq ft)34,09,530 litres₹3.1 lakh to ₹4.8 lakh
Housing society, school or factory2,000 m² (21,528 sq ft)813,65,100 litres₹8 lakh to ₹12 lakh

Ranges for budgeting, with filter chamber, pit, media, bore and piping. A site survey fixes the design and the price. See every building size and bore depth on the rainwater harvesting cost page.

How the water travels, from roof to aquifer

Rain on your roof runs to the downpipe. The first-flush diverter throws away the dirtiest first rain, the filter chamber cleans the rest, and the clean water goes into the recharge pit and down the bore to the water-bearing layer. Any extra overflows to the drain.

Flow diagram of a rainwater harvesting system: roof, downpipe, first-flush diverter, filter chamber of gravel, charcoal and sand, recharge pit with an overflow to the drain, and a bore down to the water-bearing layer
The complete flow, from roof to aquifer, not to scale.

The standard design we build

Every recharge point we build follows this design. Roof water passes a first-flush diverter that throws away the dirtiest first rain, then a filter chamber, and enters a brick-lined pit filled with boulders, gravel and coarse sand. At the bottom of the pit it goes into a slotted pipe wrapped in mesh, rising to a removable cap at the cover, down a sealed casing to the water-bearing layer your borewell draws from. The drawing below shows the pit and the pipe connection.

The drawing and the bill of quantities below are what you receive before work starts, sized for your roof after the survey. Check them against any other quote line by line.

Section drawing of a 2 m by 2 m by 2.5 m recharge pit with coarse sand, gravel and boulders. A pipe runs from a removable cap at the cover down through the layers, slotted and wrapped in mesh where it passes the sand, gravel and boulders, is sealed with clay or cement grout below the pit, continues as plain 150 mm casing, and ends in a slotted section in the water-bearing layer. A close-up shows the slots, mesh and cap.
Our standard recharge point, in section, not to scale. The bore depth shown is typical; sizes and depth are fixed for each site after the survey.

Sample bill of quantities for one recharge point in Faridabad

ItemQuantityAmount before GST
Recharge pit 2 × 2 × 2.5 m: excavation, honeycomb brick lining, PCC base, RCC cover with manhole1 no.₹28,000 to ₹38,000
Pit media: boulders, gravel and coarse sand in layers1 pit₹8,000 to ₹12,000
Recharge bore, 150 mm, with slotted PVC casing (₹300 to ₹500 a foot)120 ft₹36,000 to ₹60,000
Filter chamber: gravel, charcoal and sand1 no.₹12,000 to ₹20,000
Downpipe connections, mesh guards, first-flush diverter and overflow1 lot₹8,000 to ₹15,000
Total before GST₹92,000 to ₹1.4 lakh
Total with 18% GST₹1.1 lakh to ₹1.7 lakh

Civil work at the CPWD Delhi Schedule of Rates 2023 plus 10%, the rest at market rates, with a 120 ft bore. A bigger roof needs more pits, but one filter and pipe set can serve several. Price your own roof with the recharge pit calculator.

Where we work

All of Faridabad: the NIT, the old city, the HSVP sectors, Greater Faridabad, Ballabgarh, the industrial sectors and the Surajkund and Aravalli side. We also work in Gurgaon, Delhi and Noida.

Check the numbers for your area

Frequently asked questions

How much does rainwater harvesting cost in Faridabad?

For a house with a 100 m² roof, about ₹1.1 lakh to ₹1.7 lakh with GST for one recharge point with a 120 ft bore. Societies, offices and factories need several points; see the table above.

Is rainwater harvesting mandatory in Faridabad?

Under the Haryana Building Code, 2017, roof rainwater harvesting is required inside the plot wherever the rooftop area is 100 sq m or more. Recharge is mandatory for all building types, including group housing on plots over 500 sq m, and for common open areas such as parks and parking. DTCP has made RWH pits a condition for the occupation certificate.

Who installs rainwater harvesting in Faridabad?

TerraSetu, a Gurugram engineering firm, surveys, designs and builds rooftop rainwater harvesting and recharge pits in Faridabad for houses, societies, offices and factories, and repairs old pits that have stopped working.

How long does the work take?

A house takes about a week once the drawing is agreed: two or three days for the pit and filter, a day for the bore, and a day or two for the connections. A society or factory with several points takes two to six weeks.

Our other services

CallWhatsApp