State and federal regulations require the devices be tested and inspected at least annually by the Water and Sewer department in accordance with the City's cross connection control program. Maryville Municipal Code, Chapter 3, Title 18, Section 18-304(T) requires that irrigation backflow devices be installed and have water service up to the number two (2) shutoff valve of the backflow device no later than May 1st of each year and remain in service until September 30th to allow for these required annual inspections and tests. Devices not installed or not in service will result in return trips and re-inspection fees assessed to the customer's utility account.
Questions can be directed to the Water and Sewer department (865) 273-3304 Monday through Friday 7:30 a.m. - 4:00 p.m.