Water Mains Flushed

As part of the Merrimack Village District’s ongoing maintenance program, we will begin flushing water mains and hydrants on April 30 in the south end of town.

Flushing is done to maintain water quality throughout our distribution system. This program involves opening flushing valves to create increased water flows, which dislodge and clean out naturally occurring sedimentation in the pipelines. It may cause minor flooding of streets and slight discoloration of water and/or a short period of low pressure. Areas surrounding these streets may also experience water discoloration. The Merrimack Village District would like to reassure customers that the water is safe to drink and any discoloration should clear up in 2 – 3 hours. Flushing will occur between the hours of 8:30 AM to 3:00 PM.

Residential customers with special water needs for medical reasons are urged to call the District office at 424-9241 x 100 so they can be notified in advance of flushing in their area.

Alternative Landscape Project

Looking for some water-wise landscaping ideas? Come visit our demonstration landscape project located at our offices at 2 Greens Pond Rd. You're sure to find some practical solutions to use in your own backyard. Proper landscaping practices can go a long way towards preserving our water supply. Come by any time and tour the grounds.

Landscape Project - link

Groundwater Guardian

Merrimack is the only community in the state to receive the distinction of becoming a Groundwater Guardian Community through the National Groundwater Foundation. Through the actions of the MVD Wellhead Protection Committee and our Public Education Program, MVD earned this national recognition for Merrimack.

Groundwater Guardian - link

Flushing Program

The District has a unidirectional flushing program in the spring and fall to improve water quality with the distribution system. Notification is sent out weekly via the public education channel and the two local newspapers to inform customers of our progress.

Valve Exercising Program

The program goes hand-in-hand with our flushing program. Our field staff goes out twice a year and turn valves to ensure they are in good working condition.

Backflow Prevention Device Program

Why do I need a backflow device?
A backflow device is attached to any water supply line (currently commercial properties only). Should there be a decrease or increase in pressure the device protects any contaminated water from being back siphoned into the public water system.

The program is required by the New Hampshire Department of Environmental Services (DES). We have certified testers/inspectors who visit local businesses that have these devices installed and perform operational checks. These checks are performed yearly for all units. Those units in special areas will be checked on a semi-annual basis. This program is resulting in a steady improvement of water quality and the added security of knowing that contaminants will not be a factor.