Our Maintenance Services division has 6 personnel and performs a variety of functions. The most important is our ditching operation in the dredged material containment areas along the Savannah River. Large rotary ditchers cut trapezoidal shaped ditches three to four feet deep and three to four feet wide. They are spaced approximately 100 feet apart and function by dewatering the sites after rainfall to prevent mosquitoes from completing development in these containment areas that total more than 5,600 acres. This operation is conducted year round. Maintenance Services also maintains trails throughout the county that are used by surveillance staff to gain access to mosquito larval sites requiring routine inspection and treatment. Finally, this division maintains the grounds totaling 6.3 acres, and nine structures that make up Chatham County Mosquito Control.