Our Solutions · Rainwater Harvesting
One of the rainiest regions on earth.
And still thirsty.
North East India receives some of the highest rainfall on the planet. And yet,
communities across Assam, Meghalaya, Nagaland, West Bengal and Arunachal
Pradesh are digging borewells over a thousand feet deep to find water. Cities
flood with tankers during the dry months.
Rooftop collection & storage
Groundwater recharge
CGWB compliant
Institutional & residential
The Paradox
This is not a water shortage. It is a water management failure.
Meghalaya holds the record for the wettest place on earth. Assam receives over 2,000 mm of rainfall
annually. Yet most of this water runs off unused — flooding streets in monsoon, absent in summer.
Rainwater harvesting is not a product line for us.
It is the reason Blueways exists.
Every rooftop can become a catchment. Every surface water body can become a recharge point.
Every building we work on is a chance to put water back into the ground — not just take it out.
What We Design
From rooftop to aquifer. Complete water cycle design.
Meghalaya holds the record for the wettest place on earth. Assam receives over 2,000 mm of rainfall
annually. Yet most of this water runs off unused — flooding streets in monsoon, absent in summer.
Rooftop rainwater harvesting
Collection from roof surfaces through gutters, first-flush diverters, and filtration into storage tanks. Designed for NE India's rainfall intensity — where a single downpour can deliver what drier regions get in a month.
Groundwater recharge systems
Recharge pits, wells, and percolation systems that put captured rainwater back into the aquifer. This is how you ensure your borewell has water next summer — by replenishing it this monsoon.
Catchment-to-aquifer pathways
For larger campuses and institutions — integrated site water management that connects roof catchments, surface runoff, and landscaped swales into a unified recharge network.
Integrated site water management
For residential and commercial projects — complete water balance design. We calculate how much rain your site receives, how much you can capture, store, and reuse, and how much goes back into the ground.
Who Needs RWH
If you have a roof in NE India, you have a catchment.
reduces borewell dependency, lowers water bills, and recharges groundwater for everyone.
Builders & Developers
RWH is mandatory for many approvals. We design it into the project from the start.
Schools & Colleges
Large roof areas, high water demand. Campus-scale harvesting with visible recharge.
Government Buildings
Institutional compliance and demonstrable water conservation for public infrastructure.
Industrial Campuses
Reduce freshwater intake. Capture process cooling water and monsoon runoff.
Rainwater Harvesting Calculator
Calculate water harvest potential from your roof
Enter values to see your water harvesting potential
RWH Projects
Rainwater harvesting installations across NE India.
Site photos will be added progressively as we document our portfolio.
RWH installation
SITE PHOTO
Recharge system
SITE PHOTO
Campus RWH
SITE PHOTO
Standards & Guidelines
Designed to national guidelines. Built for local conditions.
A clear, honest report showing exactly how your plant performed. No fabricated numbers. No hiding bad data.
Standards & Guidelines
CGWB Guidelines
Central Ground Water Board guidelines for rainwater harvesting and artificial recharge. The baseline for every system we design.
Construction Standards
CPWD Specifications
Central Public Works Department specifications for RWH structures, storage tanks, and recharge wells in government and institutional buildings.
State Mandates
Local RWH Requirements
State-specific rainwater harvesting mandates for building approvals across Assam, Meghalaya, Nagaland, Arunachal Pradesh, and West Bengal.
Common Questions
Questions about rainwater harvesting.
A rough formula: Roof area (m²) × Annual rainfall (mm) × 0.8 (efficiency factor) ÷ 1000 = litres per year. For a 200 m² roof in Guwahati (rainfall ~1800 mm), that is roughly 288,000 litres per year — nearly 800 litres per day. That is significant. We calculate this precisely during site assessment.
In many cases, yes. Several state building bylaws and municipal authorities in NE India now require rainwater harvesting for buildings above a certain size. Requirements vary by location — we check the applicable mandates for your specific project and ensure full compliance.
Rooftop rainwater is relatively clean but still needs treatment before drinking — filtration and disinfection at minimum. Most of our RWH systems are designed for non-potable use (flushing, landscaping, cleaning) or for groundwater recharge. If drinking water is the goal, we add a treatment stage to meet IS:10500 standards.
Minimal — that is the beauty of it. Clean gutters and first-flush filters before monsoon. Check storage tank annually. Inspect recharge well for silting every 2-3 years. No electricity, no chemicals, no daily operator. We design for low maintenance because we know most RWH systems fail from neglect, not from bad engineering.
Yes — if you include a groundwater recharge component. A properly designed recharge well or pit puts captured rainwater back into the aquifer, raising the water table in your immediate area. Over 2-3 monsoon cycles, this measurably improves borewell yield and can reduce the depth at which you hit water.
Related Services
Complete the water cycle.
WTP · Purification
Water Treatment Plants
Treat your borewell or harvested rainwater to drinking standard. Iron removal, softening, and RO.
STP · MBBR & DEWATS
Sewage Treatment Plants
Close the loop. Treat wastewater and reuse it for landscaping — paired with RWH for maximum water efficiency.
O&M · Plant Care
Operations & Maintenance
Ongoing monitoring and maintenance for your complete water infrastructure.
Want to capture the rain?
harvesting potential and design a system that pays for itself.