Friday, December 8, 2000
Church expansion requires new septic system
Engineers for the Congregational Church expansion presented plans for a new septic system to replace the existing system which failed Title 5 inspection. The system will accommodate the new church addition, including seating for 352 in the new sanctuary, nine classrooms, and a function hall.
At the November 28 meeting of the board of health, Kirk Ware, the Congregational Church building committee chairman, and Joe March, an engineer from Stamski and McNary, stated that the original April 1999 building plan intended to use the existing septic system. When the church was built in 1968, the septic plan called for an interceptor trench to be built around the entire system, which would accommodate the anticipated future addition. An interceptor trench is a very deep trench surrounding a leaching field with the purpose of providing a flow path for reducing high water. However, the septic system failed the Title 5 inspection and showed that no interceptor trench was ever built.
March explained that the new design uses a mounded system which does not use an interceptor trench. The system is sized for 1980 gallons per day flow rate, the same as the new St. Irene church. Title 5 statutes provide that a design may use measured flow rates from a comparable structure, and calculate the system size based on twice the measured rate. March was instructed to get the flow rates from St. Irene, send them to DEP for approval and include the flow rates on the current plan.
Well is a public water supply
The board was informed that the church's well was declassified from a public water supply by the state Department of Environmental Protection (DEP) because the Noah's Ark Nursery School is no longer operating in the church. To be classified as a public water supply the well must be used by 25 different people for 60 days or more per year. This eliminates the DEP's responsibility to supervise the testing of a public water supply. However, when the nursery school reopens after the new construction is completed, the well will have to be recertified. Opolski wanted the design to state that supply was a public water supply even if the town has to supervise the testing. Ware and March were in agreement, and the plans will meet the public water supply standards.
© 2000 The Carlisle Mosquito