Potable Water Reservoir Liner
A potable water reservoir liner has to keep drinking water clean as well as contained. SIGMA geomembrane is preferred by engineers and utility owners for potable water containment — a high-strength, UV-resistant, non-toxic membrane used for raw water ponds, finished water baffles, reservoir lining and floating covers that keep the stored water protected.
A non-toxic liner for drinking water storage
Drinking water reservoirs demand a barrier that is both impermeable and safe for potable contact. The HDPE geomembrane is made from non-toxic virgin polyethylene, so it lines raw water ponds, finished water basins and reservoirs without affecting water quality. Its high strength and UV resistance let it stay exposed for years on open reservoir slopes, while welding it into one continuous sheet gives the watertight containment utility owners rely on.
Floating covers keep stored water clean
Open reservoirs lose water to evaporation and are exposed to algae growth, debris and contamination. A floating cover made from the same UV-resistant geomembrane floats on the surface to seal the reservoir, cutting evaporation, blocking sunlight that drives algae, and keeping birds, dust and runoff out of the drinking water. Floating covers, finished-water baffles and the reservoir liner together form a complete potable water containment system.
One source for liner and cover
SIGMA manufactures and exports both the reservoir geomembrane and the floating cover direct from the factory, so the liner and cover are compatible and supplied together at manufacturer pricing. From raw water ponds to finished water reservoirs, you get a high-strength, UV-resistant, non-toxic potable water system from a single supplier.
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Potable water reservoir FAQ
Is HDPE geomembrane safe for potable water?
Yes. The geomembrane is made from non-toxic virgin polyethylene, which is why it is preferred for raw water ponds, finished water basins and drinking water reservoirs. It contains and protects the stored water without affecting its quality.
What does a floating cover do for a reservoir?
A floating cover is a UV-resistant geomembrane that floats on the reservoir surface. It reduces evaporation, blocks the sunlight that drives algae growth, and keeps birds, debris, dust and runoff out of the stored water — keeping a finished or raw water reservoir clean.
Can the reservoir liner stay exposed to the sun?
Yes. The geomembrane is high-strength and UV resistant, so it can line open reservoir slopes and water ponds exposed to sunlight for years. The same UV-resistant material is used for the floating cover that sits permanently on the water surface.
Request a potable water reservoir quote
Tell us the reservoir area, whether you need a liner, a floating cover or both, and your destination port — we reply within one business day.