Maple trees have started turning color. That means it
is about time to shut down seasonal water systems. When you close for
the year, inspect your system, clean it and protect it so it will be
ready when you reopen the next season. See below for proper steps and
precautions for shutting down a seasonal water system. This information
is aimed at groundwater systems, but many steps also apply to surface
water-based systems.
- Turn off the supply - the well pump or the valve from the spring.
- Drain the tanks first (springbox, storage and/or pressure tanks), then drain the lines, and finally close off the valves.
- Remove any devices that may be damaged by freezing for storage (hydrants? feed pumps?) and cap off the open connection points.
- WELLHOUSE: Look for droppings, chewed papers or nesting materials
and figure out how to keep rodents and insects outside and away from the
wellhead. Cap all openings on the wellhead itself to prevent insects
from crawling in. Check the vent screen. Drain the pressure tank if
there's potential for freezing.
- TREATMENT (if applicable): Shut off power to treatment systems.
Empty the chlorine solution tank, if applicable. Check expiration dates
on chemicals and testing reagents. Make sure all treatment reports were
submitted and/or filed for the operating season.
- SECURITY: Lock the pumphouse and protect it from trespassers. Note
any needed fencing repairs. Store all chemicals securely at least 100
feet from the well.
- STORAGE TANK: After draining the storage tank, inspect the
following: the bottom of the tank for accumulated sediments that will
need removal, the tank roof and sides for holes and cracks, and the
condition of the coating on the inside and outside of the tank. Lock the
tank's access hatch, making sure that insects and spiders cannot get
inside the lid. Check that the screens/valves on the overflow pipe and
vents are fully intact to keep insects, birds and bats out of the tank.
- DISTRIBUTION LINES: Walk the lines, making sure they are not are
exposed. Check your system for leaks. Make sure all valves are shut down
at the end of the season.
- AFTER CLOSING: Compile your operations and water
quality records for the year. Note periods of peak water use and water
quality problems. Use this information to plan for next year. Also, the
off-season is the time to plan larger improvements to your system. Work
other than repair or replacement requires the approval of Drinking Water
Services before initiation.