The objective of the Mattatall Lake Stewardship Association is to support all measures of improving the water quality of Mattatall Lake and to protect the surrounding watershed. The Association endeavours to understand nutrient levels that may cause algal blooms, and to use this knowledge to protect water quality into the future. The Association will share knowledge and encourage best environmental practices with the residents of Mattatall Lake and surrounding watershed stakeholders. Through research and advocacy, the Association will help prevent similar problems in other parts of Nova Scotia. Water samples were collected from Mattatall Lake and its adjacent streams using appropriate water sampling bottles and were delivered to a certified laboratory for analysis of total phosphorus.