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Aquatic-safe Liners and Wetland Construction

Aquatic-safe liners may be used to build wetlands on sites where clay texture soil is not present, and where groundwater is not near the surface. Installing a liner is a sure way to control leaking in a constructed wetland or pond. Liners made from 30-mil PVC, 30-mil RPE, or 45-mil EPDM work very well. The liners must be certified fish-grade and aquatic-safe, and be protected on both sides with thick geotextile fabric, and then covered with at least 6-inches of soil. Liners and geotextile may be purchased one-piece and factory seamed. Wetland Restoration and Training LLC Founder Tom Biebighauser has found that bentonite, bentonite quilted liners, and liquid polymers and powders are not effective for stopping leaks or sealing wetlands and ponds. Liners must be protected on both sides with geotextile, and then covered with at least 6-inches of soil. Detailed instructions on how to build wetlands using liners can be found in the book by Thomas R. Biebighauser Wetland Restoration and Construction -A Technical Guide. Wetlands built using aquatic-safe liners should last forever when built following the steps outlined by Tom Biebighauser.

USA CA Tahoe National Forest Workshops 6 Wetland Restoration
USA CA Tahoe National Forest Workshops 3- Wetland Restoration
Liner wetland construction 5
Liner construction 3
Liner wetland construction 4
USA AZ Coronado NF Constructed Wetland 1

Photo Gallery

Enjoy these photos showing wetlands we have built using aquatic-safe liners!

  • USA AZ Whitetail Canyon Liner wetlands
  • USA AZ Coronado National Forest Wild Duck Liner 2 wetlands
  • USA KY Corbin Middle School Liner wetlands
  • USA AZ Coranado National Forest Halfmoon Ranch Liner 3 wetlands
  • USA KY Daniel Boone National Forest Liner 1 wetlands
  • USA AZ Appleton Whittell Research Ranch Liner 1 wetlands
  • USA KY Daniel Boone National Forest Colt Branch LIner wetlands
  • USA AZ Appleton Whittell Research Ranch Liner 2 wetlands
  • USA AZ Appleton Whittell Research Ranch Liner 3 wetlands
  • USA AZ Coronado National Forest Brown Canyon Ranch Liner 3 wetlands
  • USA AZ Coronado National Forest Brown Canyon Ranch Liner 1 wetlands
  • USA MA Cape Cod Liner 10 wetlands
  • USA AZ Coronado National Forest Wild Duck Liner wetlands
  • USA CA Eldorado National Forest Liner wetlands
  • USA California BLM Michigan Bluff wetlands 1
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