Practical Guide to Lake Mgmt in Massachusetts
http://lakeholland.net/lake_mgmt/benthic_barrier_project/practical_guide.pdf 

Massachusetts DCR Lake and Pond Program
http://www.mass.gov/dcr/waterSupply/lakepond 

Mass Nonpoint Source Pollution Mgmt Manual
http://projects.geosyntec.com/NPSManual/PDF%20Chapters/Chapter%207.pdf

Constructing and Installing Bottom Screens
http://www.ecy.wa.gov/programs/wq/plants/management/aqua021.html

New Hampshire Variable Milfoil Program
http://www.squamlakes.org/sla/milfoil.htm

Lake Mgmt Plan, includes Typar and comparative data
http://lakes.chebucto.org/lakerest.html

What is a geotextile?
http://www.usfabricsinc.com/products/geotextiles.shtml?gclid=COD0komo3IwCFQglgAodVDAyZg

Massachusetts Specs, with typar
http://www.mhd.state.ma.us/default.asp?pgid=content/materials03i&sid=about