Water Test Results Date Main Beach Mothers Beach Swing Island Other 8/8/07/07 <20/100 ml <20/100 ml <20/100 ml   7/25/07 <20/100 ml <20/100 ml <10/100 ml   7/10/07 <20/100 ml <20/100 ml <20/100 ml   5/22/07 <20/100 ml <20/100 ml <20/100 ml   8/23/06 <20/100 ml <20/100 ml <20/100 ml <20/100 ml1 8/02/06 20/100 ml <20/100 ml <20/100 ml   6/27/06 <20/100 ml 25/100 ml 20/100 ml   07/12/05 100/100 ml < 20/100 ml     06/21/05 25/100 ml 75/100 ml 75/100 ml   08/12/04 25/100 ml 40/100 ml     07/30/04 20/100 ml 20/100 ml 25/100 ml   07/12/04 25/100 ml < 20/100 ml 25/100 ml   06/18/03 25/100 ml 100/100 ml     08/12/03 < 20/100 ml < 20/100 ml   Old Town Cove < 20/100 ml 07/26/03 (left) 100/100 ml (right) 50/100 ml       07/13/03 150/100 ml       06/29/03 60/100 ml       08/03/02 20/100 ml 50/100 ml   multiple locations 14 - 700/100 ml 07/20/02 160/100 ml 40/100 ml     07/06/02 20/100 ml 25/100 ml     06/26/02 < 40/100 ml < 20/100 ml     06/24/02 365/100 ml 1200/100 ml     06/10/02 100/100 ml 80/100 ml     1 boat launch

• Lake water is tested to determine the number of e-coli bacterial per 100 milliliters.
• The number of e-coli bacteria is an indication of the degree to which the water is contaminated with fecal matter.
• State of Connecticut maximum allowable (for safe swimming) is 235/100 ml, mean 126/100 ml