New Hampshire Well Water Testing and Treatment Contractors

Find qualified Well Water Testing and Treatment contractors in New Hampshire using our contractor lookup tool. Learn more about NGWA Contractor Certifications here.

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Eastern Analytical Inc

Contractors Company
51 Antrim Avenue
Concord, NH 03301
(603) 228-0525

Capital Well Company Inc

Contractors Company
150 Concord Stage Rd
Dunbarton, NH 03046-4710
United States
(603) 774-6155

Contoocook Artesian Well Co

Contractors Company
524 Weare Rd PO Box 2036
Henniker, NH 03242-3342
United States
(603) 428-6060

Gap Mountain Drilling Inc

Contractors Company
PO Box 287
Tilton, NH 03276
United States
(603) 393-7569

Tasker's Well Company Inc

Contractors Company
PO Box 500
Northwood, NH 03261-0500
United States
(603) 942-5581

New England Boring Contractors

Contractors Company
PO Box 165
Derry, NH 03038-0165
United States
(603) 437-1610

Gilford Well Co

Contractors Company
1440 Lake Shore Rd
Gilford, NH 03249-2249
United States

Skillings & Sons Inc

Contractors Company
9 Columbia Dr
Amherst, NH 03031-2306
United States
(603) 459-2600

Caswell Pump Co Inc

Contractors Company
35 Colburn Rd
Temple, NH 03084-4301
(603) 878-1672

Advance Pump & Filter Co

Contractors Company
10 Calef Hwy
Lee, NH 03861
United States
(603) 868-3212

Comac Pump & Well Co LLC

Contractors Company
PO Box 425
Kingston, NH 03848-3313
United States
(603) 642-3683

American Water Systems Inc

Contractors Company
PO Box 47
Center Harbor, NH 03226
United States
(603) 253-9182

Thomas & Son Artesian Well Co

Contractors Company
PO Box 1283
Center Harbor, NH 03226-1283
United States
(603) 253-7618

McKinney Artesian Well & Pump Supply Company Inc

Contractors Company
18 Newton Rd
Plaistow, NH 03865-2407
(603) 382-8323

James Carr

Contractor Individual
PO Box 378
Littleton, NH 03561
United States
(603) 991-5132

Find Well Water Testing and Treatment In

Frequently Asked Questions

When should I have my well water tested?

The National Ground Water Association (NGWA) recommends well owners test their water at least annually for bacteria, nitrates, and any contaminants of local concern. More frequent testing should be considered if:

  • There is a change in the taste, odor, or appearance of the well water, or if a problem occurs such as a broken well cap, inundation by floodwaters, or a new contamination source
  • The well has a history of bacterial contamination
  • The septic system has recently malfunctioned
  • Family members or house guests have recurrent incidents of gastrointestinal illness
  • An infant is living in the home, or
  • To monitor the efficiency and performance of home water treatment equipment.

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What can impact groundwater quality?

Forty-seven percent of the United States depend on groundwater for their basic drinking water supply. Having a basic understanding about groundwater quality will help ensure that your well is supplying potable water for your household.

Along with human activities, water quality is affected by a combination of natural processes. Most relate to chemical compositions underground. However, other factors such as biological, physical, and radiological conditions can affect water quality as well.

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How is a well disinfected?

Properly constructed and maintained water well systems are designed to keep microorganisms such as bacteria, viruses, and protozoa from getting inside the well system and into the water. When a water test indicates the presence of microorganisms in a well, disinfection of the well system is recommended along with some level of inspection.

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New Hampshire Groundwater and Water Well Statistics

Few states can accurately or confidentially determine how many residential wells are in place. For each region, the American Housing Survey by the U.S. Census provides regional data.

New Hampshire is found in the Northeast, along with these other states: Maine, Vermont, New Hampshire, Massachusetts, Connecticut, Rhode Island, New York, New Jersey, and Pennsylvania.

The last American Housing Survey Census indicates this region had 3,210,0002 households served by residential wells, with an average of 2.473 persons per household. The USGS estimates the population of self-supplied water supply users in New Hampshire to be 497,000, with 100% of their water supply from groundwater.

  • 658 community water systems use groundwater for 358,600 people
  • 470 non-community, non-transient water systems use groundwater for 83,900 people
  • 1,374 non-community, transient water systems use groundwater for 244,500 people
  • 456 irrigation wells used serving 341 farms and 1,220 acres

Well Water Testing and Treatment Articles and Resources

Does My Water Well Need Treatment? By Gary L. Hix, R.G., CWD/PI Have you ever asked yourself: “Does my well water need treatment?” The question is not one you can answer if you have not had your water tested recently. You should ask yourself instead: “When was the last time I had my water tested?” If the answer to this question […]

PFAS and Private Well Owners: What You Need to Know NGWA published PFAS and Private Well Owners: What You Need to Know, a two-page fact sheet for home owners concerned about PFAS. Written in easy-to-understand language by groundwater professionals, it explains what PFAS are, how to test wells for PFAS, treatment options, and more.