As the coronavirus (COVID-19) updates continue, Pennichuck will continue to provide vital water services to you and your family. We have taken steps to protect our staff, their families, and our community to ensure the continued delivery of the critical services we provide.
We have been monitoring the COVID-19 situation closely and we are taking measures to keep our customers and our staff and their families safe and healthy. We are following recommendations of health authorities including both the state and federal Centers for Disease Control and Prevention (CDC).
As recommended by the CDC, protections we have implemented include increasing sanitation and disinfection of workspaces, cancelling large gatherings, minimizing non-essential meetings, and promoting personal hygiene practices.  We are continuing to monitor any employee illness and promote work from home options for all employees whose job responsibilities allows them to do so. We still have all essential staff on duty as needed.
As always, we have representatives available by calling 800-553-5191 Monday through Thursday 7:30am to 7:00pm and Friday 7:30am to 5:00pm, with emergency services available 24 hours a day, 7 days a week.

Please take note of the following important changes to our normal daily operations:

We want to assure you that your water continues to be monitored, treated and tested in accordance with regulations established by the EPA and NH Department of Environmental Services.
Pennichuck will continue to monitor developments on COVID-19 and is prepared to take any further actions as needed. Please read our letter from our CEO regarding COVID-19. Please visit and fill out our Customer Contact Information form, as expressed in the letter.

Types of Water Supply

Your water comes from one of or a combination of three types of water supplies:  surface water, ground water and water purchased from other water utilities.  To find out the source of your water supply please go to My Water System.  The quality and quantity of Pennichuck’s surface and ground water supplies are dependent upon the activities which take place within each supplies watershed.  The available quality and quantity of your water is negatively impacted by increased development within your water supply’s watershed.  Rain water and snow that once percolated into the ground to recharge the ground and surface waters prior to development now runs off roofs and paved surfaces. During this, it picks up pollutants and moves quickly out of the watershed where it is no longer available to recharge the ground or surface water that provides your water supply.  Protecting the watersheds that provide water to local surface and ground water supplies is essential to ensure the long-term quality and quantity of your water supply.

What is a watershed? A watershed is the area of land where any precipitation that lands within its boundaries drains or seeps into the wetlands, streams, rivers, lakes, or groundwater that eventually ends up in your well or surface water supply.

Surface Water:  As the term implies, surface water is found at the surface of the earth and consists of rivers, lakes, and reservoirs. Pennichuck manages two surface water supply systems

  1. The Nashua Core water system derives its water supply from the Pennichuck Brook and the Merrimack River watersheds.
  2. The Pittsfield Aqueduct water system derives its water supply from the Berry Pond watershed.

Ground Water:  Ground water is the source of water supply for many of Pennichuck’s water systems. This water comes from precipitation that has seeped into the ground and becomes part of the water flowing underground through the space between soil particles or fractures in local bedrock structures.  This source of water is tapped into wells that are inserted into the soils or rock fractures containing this water.  Pumps within the well pump water up to the surface where it can be treated (if necessary) and distributed to our customers.  Pennichuck owns and maintains over 35 community water systems that use ground water as their source of supply.

Purchased Water:  In some cases Pennichuck buys water from other water utilities through an interconnection between the two water systems.