Living in Hollis, locals enjoy the countryside atmosphere and quiet living just minutes from the city of Nashua. Founded in 1731, Hollis is a gorgeous agriculture community full of rich history, gorgeous farmsteads and orchards, and rolling hills as far as the eye can see.

Hollis residents still need better water quality.

There are many reasons why Hollis residents may need to find cleaner water sources. One reason is that the state’s water supply is often contaminated with harmful chemicals and pollutants. These contaminants can come from various sources, including industrial waste, agricultural runoff, and sewage treatment plants. Towns surrounding Hollis have varying levels of PFAS and additional contaminants. Unfortunately, the Merrimack River has dealt with PFAS issues and other pollutants affecting our families’ lives.

City water vs. well water in Hollis.

If you live in Hollis, you’re part of the Pennichuck water system unless your home runs on well water. And your water sources include the Merrimack River and Pennichuck Brook. If you have well water in Hollis, you may be explicitly concerned about chemical runoff, bacteria, arsenic, and other pollutants, on top of the PFAS issue.

Contaminants potentially in Hollis, NH water.

Contaminated water can cause various health problems, including gastrointestinal issues, reproductive problems, and cancer. Homeowners and businesses must test their water and find the right solutions to provide safe water for themselves, their neighbors, customers, and family members, as there are various potential issues. The following are the most common and potential water concerns in the state today:

  • PFAS/PFOA due to the different NH manufacturing spills and using PFAS-laden products.
  • Bacterial contamination from things like E.coli can cause severe medical problems.
  • Arsenic, the naturally occurring toxic element in NH bedrock.
  • Radon, an odorless and colorless gas that is released from bedrock into homes and water supplies.
  • Pesticides, Nitrates, and Chloride (salt from the roads and septic systems), leading to health and fertility/growth issues.
  • Fluoride, causing discolored teeth, bones, and other health issues.
  • Lead from natural sources or old pipes, causing developmental issues in children.
  • Pharmaceuticals that enter the water when people inadequately dispose of them.
  • Heavy metals present in the water due to natural deposits or human activity.

The EWG report for Hollis.

The Environmental Working Group (EWG) is a non-profit organization that provides information and resources to help people make informed decisions about their health and the environment. The EWG’s water database rates tap water quality in the United States on various factors, including the presence of contaminants, the safety of drinking water treatment plants, and the overall quality of the water supply. Ultimately, the EWG’s water database is a valuable resource for people who want to learn more about the quality of their drinking water and take steps to protect their health.

The EWG found various contaminants, with five exceeding in the Hollis Village Marketplace, which houses a diner, childcare facility, and offices.

These contaminants include —

  • Arsenic (1,168x over recommendations)
  • Radium (28x over recommendations)
  • Nitrate (13x over recommendations)
  • Uranium (5x over recommendations)
  • Antimony (2.7x over recommendations)

Here’s a little more information on these contaminants flowing through Hollis waterways.


Prolonged exposure to arsenic can lead to severe health issues, including skin lesions, cardiovascular disease, respiratory problems, and various kinds of cancer including skin, lung, bladder, and kidney. It can also hinder cognitive development and immune system growth in young children.


Long-term exposure to radium-contaminated water increases the risk of developing bone cancer because radium accumulates in the bones. It can also cause an elevated risk for leukemia and other issues. It is imperative to remove radium from drinking water sources.


Nitrate chemical compounds are commonly found in fertilizers, manure, and sewage and can infiltrate water through runoff and leaching into the groundwater. High levels of nitrates in your water are hazardous for babies, causing methemoglobinemia, also known as “blue baby syndrome.” It can also cause higher rates of some cancers in adults.

NH Tap’s recommendations for clean water in Hollis.

All New Hampshire residents should know water quality reports and standards, regardless of their water source. It is essential to test your water regularly to ensure it is safe to drink. Different water purification methods include filtration, UV water purification, distillation, water softeners, and reverse osmosis. The best process of water purification for you will depend on the contaminants in your water and your budget. Under the sink or refrigerator filters do not eliminate most contaminants. And while many believe bottled water is a safer alternative than tap water, many studies have shown that bottled water is no cleaner than tap water when it comes to specific contaminants and added plastic use. We often recommend having a whole-home filtration system to provide clean water at every faucet.

Schedule a water test to find out if you have contaminants in your water.

The NH Tap team passionately serves our communities by helping people learn about their water needs while providing a 5-star experience to everyone who has us conduct a water test or install one of our systems. We enjoy helping our friends and neighbors stay healthy by determining their water needs and the best solution for them. NH Tap can provide a range of tests (some that are free) to check the exact levels of contamination, so you can find out what filtration solution would best serve your home.

Schedule your water test today.

Get Hollis’s best public or well water filtration.

NH Tap provides custom water solutions for New Hampshire homes. Their systems eliminate contaminants at the source for better-tasting, healthier water. Whole-home filtration removes 99.9% of pollutants PFAS. Compact units are easy to install and remove arsenic and nitrates to Chlorine and industrial chemicals. Because we tailor our water filtration units for New Hampshire water, we provide the particular filtration media to remove contaminants specific to your Hollis public water or well water. We offer —

  • installation on all of our filtration systems
  • 5-year warranty (including parts and labor)
  • A lifetime of support

NH Tap can help you and your family gain peace of mind and enjoy delicious, pure water for years. Enjoy only the best water from every faucet and appliance in your home!