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Ecological Projects >> Truckee River >> Wadsworth Tile Drain Wetland

Project:  Wadsworth Tile Drain Wetland

Client:  Pyramid Lake Paiute Tribe

Date:  October 2012 – December 2012 (Design)
August 2013 – September 2014 (Construction)

Site Location:  Pyramid Lake Paiute Tribal Lands along the lower Truckee River near Wadsworth, NV.

Aerial view showing the proposed wetland site.
Aerial view showing the proposed wetland site.
Project Summary:
Otis Bay designed a wetland for treatment of agricultural drain water entering the Truckee River via the Wadsworth tile drain.  Tile drains are networks of below-ground pipes or tiles installed beneath agricultural fields to drain and remove excess water from the soil subsurface, lowering the surrounding water table and creating better conditions for plant root growth.  Tile drains were installed in agricultural fields near Wadsworth, NV, during the 1980s to allow farmers to grow alfalfa in areas where the water table was high. Water from the tile drain has compromised water quality because soils in the Wadsworth tile drain fields are high in pH, alkalinity and minerals.  Tile drain water contains elevated total dissolved solids (TDS), specific conductivity and nitrogen levels.  In order to reduce contaminants, Otis Bay designed a treatment wetland and developed a construction sequence.  Because wetland plants and associated microorganisms play an important role in nutrient uptake and assist with settling of water-borne particulates, a revegetation and weed treatment plan was also developed.  Native plants propagated by Paiute Native Plants will be planted on the project site, and this company will be working closely with Otis Bay Ecological Restoration to implement this project.

Project Update:
This project has been completed.

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