Reviving Water Bodies Through Watwa’s Nature-Based Constructed Wetland Solutions for Lake, Pond, and Nalah Restoration

The Problem: Lake & Pond Pollution
Freshwater makes up a small fraction of all the water on our planet, yet it’s the resource we depend on most — and it’s under constant pressure. Untreated domestic sewage and industrial effluent are routinely discharged into drains, nalas, and open channels that eventually feed into local lakes and ponds, gradually stripping these water bodies of their health and clarity.

What’s In the Water
Untreated wastewater entering a lake is typically grey, low in visible solids, but high in dissolved organic load and nutrients — enough to disturb an entire aquatic ecosystem over time even without looking heavily contaminated on the surface.

Types of Pollutants Affecting Lakes

• Nutrient pollution — excess nitrogen and phosphorus trigger eutrophication, fueling algal blooms that choke off oxygen and aquatic life
• Metal contamination — heavy metals such as lead and cadmium disrupt the lake’s natural biological balance
• Sediment pollution — excess silt and clay reduce water clarity and smother aquatic habitats
• Dissolved solids — elevated calcium, phosphates, sodium, and chloride levels degrade overall water quality

Watwa’s Solution for Lake Rejuvenation