Click on any of the projects below to view the photo gallery and project details.

• Fawn Lake – Bedford, MA
• Long Pond Cove – Holyoke, MA
• Lake St. Catherine – Poultney/Wells, VT
• Mt. Auburn Cemetery – Watertown, MA
• Spy Pond – Arlington, MA
• Wachusett Reservoir - West Boylston, MA
• Yokum Pond – Becket, MA
• Private Coastal Pond, RI

Project:
Fawn Lake – Bedford, MA

Client:
Town of Bedford, MA – Conservation Commission

Description:
Mechanical raking of nuisance vegetation, predominately waterlilies over approximately two-thirds of this 12 acre pond.

Lake covered with dense growth of waterlilies prior to work	Hydro-Rake at launch/offloading site	Hydro-Rake working with Transport Barge	Map showing priority raking areas used to guide work

Project:
Long Pond Cove – Holyoke, MA

Client:
Town of Holyoke, MA – Conservation Commission, US Fish & Wildlife Service

Description:
Integrated program of mechanical harvesting and herbicide treatment for control of invasive water chestnut in this ~10 cove of the Connecticut River.

Water chestnut (Trapa natans) plant showing floating rosette and seed	Orthophoto of the Log Pond Cove Site	Log Pond Cove covered with water chestnut prior to harvesting/treatment	Aquatic Control’s H6-300 harvester
Aquatic Control’s H7-400 harvester working with the H6-300	Harvester unloading to “containment tub” for loading/disposal

Project:
Lake St. Catherine – Poultney/Wells, VT

Client:
Lake St. Catherine Association

Description:
Design, permit and implement a long term vegetation management program for Eurasian watermilfoil. The initial year of the program entailed multiple treatments of Sonar (fluridone) herbicide of this 1,100 acre lake. A comprehensive, multiple year plan was developed & approved along with pre and post treatment monitoring inspections.

Reviewing final treatment plan and preparing Airboats for launch	Map of Lake St. Catherine showing treatment basins	Airboat applying Sonar herbicide below the water with weighted hoses	Map of actual treatment passes as recorded with our Trimble Differential GPS
Graph of average fluridone concentrations by sampling site	Map of post-treatment vegetation assemblage (September 2004) showing no viable milfoil!

Project:
Mt. Auburn Cemetery – Watertown, MA

Client:
Mt Auburn Cemetery

Description:
Hydro-raking to remove nuisance aquatic vegetation & accumulated organic debris in order to build a submersed “shelf” for a wetland replication project at Willow Pond.

Hydro-Rake being prepared for work	Removing non-native and invasive yellow iris	Preparing pre-planted “mats” for installation on submersed shelf	Submersed shelf one month after planting

Project:
Spy Pond – Arlington, MA

Client:
Town of Arlington – Department of Community Development

Description:
Application of aluminum sulfate (alum) and sodium aluminate for water clarity improvement and nutrient inactivation. Approximately 20,000 gallons of alum and 8,000 gallons of sodium aluminate were applied over ~60-70% of this 102 acre pond. Clarity post-treatment showed an initial increase from ~6-8 feet to greater than 20-feet.

Jar testing apparatus used to plan dosing and buffer requirements for treatment	Alum treatment vessel equipped with tanks, pumping systems and spray boom	Test of the spray boom showing spray pattern created by nozzles	Staging/loading area showing alum and sodium aluminate tank truck
Vessel applying product leaving a “floc” trail	Underwater picture of pond bottom showing settled “floc” in deep water

Project:
Wachusett Reservoir - West Boylston, MA

Client:
MA Department of Conservation and Recreation (DCR)

Description:
A program of integrated, non-chemical techniques to manage Eurasian watermilfoil in the upper reaches of this important drinking water resource. The techniques of benthic weed barriers, floating fragment barriers, diver hand-harvesting and GPS vegetation mapping were used to control and contain the milfoil to a small forebay of the reservoir.

Map showing project work areas and tasks	Divers installing bottom barrier	Diver emerging from the water covered in milfoil	200 foot long floating fragment barrier used to contain milfoil fragments during work
Summary table of hand-harvesting efforts from 2002-2004

Project:
Yokum Pond – Becket, MA

Client:
Yokum Pond Association

Description:
Detailed vegetation survey conducted to evaluate management alternatives to control a pioneer infestation of Eurasian watermilfoil in this ~100 acre pond.

Download the actual report! [PDF]

Figure showing layout of transects and data points used for the vegetation survey	Figure showing the Vegetation Distribution at the time of the survey

Project:
Private Coastal Pond, RI

Client:
Homeowners Association

Description:
Control and removal of invasive Phragmites growth from the shoreline margins of this small coastal pond.

Herbicide treatment conducted from our Airboat	Herbicide treatment conducted from our Argo amphibious track vehicle	Overview of pond showing areas of treated Phragmites	Closeup view of a stand of Phragmites
Post-treatment and post-cutting view of the pond