Tilcon’s quarrying activities in North Branford altered area drainage patterns, sending more water toward Cedar Pond, according to a 2008 state Department of Energy & Environmental Protection memo. A variety of factors have contributed to the problem. One is increased development along Route 80, which has increased the amount of runoff that goes to the lake. And while a 2018 DEEP memo contends that non-quarry stormwater is a bigger contributor to the lake than the water Tilcon pumps, the 2008 memo, penned by environmental analyst Brian Golembiewski, makes the case that the company’s quarrying activities altered drainage patterns in the area. Tilcon’s property, which sits about a mile northwest of Cedar Pond, covers some 600 acres north of Route 80 at its intersection with Route 22.