We line water ponds and reservoirs of all sizes, from small storage ponds to large reservoirs, with HDPE geomembrane welded and tested by our own crew.
Specification points
- For drinking water, specify a liner certified for potable-water contact
- Exposed liners need UV resistance; specify material that meets GRI-GM13
- Anchor trenches and ballast designed against wind uplift when the pond is empty
- Safe egress with ladders or rope lines, because an empty lined pond has slippery walls
How a water pond is lined
- Prepare the ground: remove stones, roots and sharp objects, then compact and smooth the floor and slopes
- Dig the anchor trench around the top of the pond
- Lay a protection geotextile where the ground could damage the liner
- Deploy the HDPE panels and join them with the hot wedge welder; extrusion-weld pipes and corners
- Test the seams by vacuum box and spark testing, with peel and shear tests; repair and retest
- Backfill the anchor trench, then fill the pond
Canals
Lined canals lose far less water to seepage than earth channels. Seam layout and anchorage should suit the flow and leave access for maintenance.