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Yemmegundi Estate / Suntikoppa, Coorg

Coffee water,
cleaned by a
living wetland.

What happens when a treatment system is designed as part of the landscape—not hidden behind it.

Wetland plants growing at the edge of water
SystemConstructed wetland treatment

Coffee pulping creates wastewater that is highly acidic. Released untreated, it can place serious pressure on natural water bodies.

At Firefly's 100-acre Yemmegundi Estate, the response was not to treat water as an isolated engineering problem. A constructed wetland was built into the wider estate system, using plants, microbes and filtration to improve the effluent before release.

The idea in plain language

A wetland is not decoration.
It is working biology.

01

Slow the flow

Water enters a designed sequence rather than moving directly to a natural outlet.

02

Bring in living filters

Wetland plants, their root zones, microbes and filter media create conditions for treatment.

03

Measure the change

Firefly reports improvements in pH, BOD and COD. Public case reporting should pair these with dated tests and baselines.

Coffee growing on Yemmegundi Estate

Why the estate matters

The wetland is one part of a larger loop.

Yemmegundi sits at 999 metres in Coorg and grows Arabica and Robusta coffee, pepper and secondary crops. Across the estate, Firefly has introduced regenerative practices including biochar, vermicomposting and biological agricultural inputs.

Wood litter and pruned material can become biochar. Organic estate waste can return through vermicompost. Biological inputs support crop nutrition and pest management. The wetland belongs to this same way of thinking: keep useful resources in play and reduce harm at the edge of the system.

100 acresWorking coffee estate
999 mElevation
5 acresPermaculture trial plot

What should be measured next

A good story becomes stronger when the evidence travels with it.

01

Water quality

Dated inlet and outlet pH, BOD and COD results, with sampling method and season.

02

Hydraulic reality

Daily or seasonal flow, retention time and the wetland's designed treatment capacity.

03

Operational care

Plant maintenance, filter-media care, sludge handling and the people responsible.

04

Ecological value

Habitat observations, biodiversity signals and how the wetland connects to the estate landscape.

Bring the question to your site

What is your water trying to tell you?

Share the source, flow, season and the outcome you need. Firefly will help identify the right first investigation.

Describe your water challenge ↗