Shot 07/07/2011.## OK:2 beaches close due to E.coli in Arcadia Lake -Results from the June 29 test prompted city and corps officials to take immediate precautions. Test results, taken by Accurate Environmental Laboratories, showed elevated levels of E.coli bacteria in the waters at both beaches. E. coli is related to animal contamination and with very little rain, lack of winds for circulation and the shallow depths of these particular water areas where water stagnates quickly. ##