The water plant laboratory staff performs 150 tests every day and over 50,000 each year to ensure you receive high quality drinking water. Operators perform bi-hourly analysis for turbidity, chlorine residual and pH on raw, floc, settled, filter effluents and tap water in a small lab provided for this purpose. The main laboratory and personnel are certified in wet chemistry, bacteria, and metals. Here all required analysis is performed or facilitated for the Avon Lake Pollution Control Center, Rural Lorain County Water Authority, Avon, Sheffield Lake, the Village of Sheffield, LaGrange and Spencer.