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Understanding Results



*Do Not Consume if Results Exceed Guidelines

TOTAL COLIFORM BACTERIA should be negative
These organisms are prolific in the soil. Their presence does not necessarily imply contamination from wastewater nor the presence of other sanitation based health risks. The presence of total coliform by itself does not imply an imminent health risk but does indicate the need for an analysis of all water system facilities and their operations to determine how these organisms entered the water system. A positive result deems the water unsafe for drinking purposes.

E-COLI BACTERIA should be negative
E-Coli Bacteria used to confirm whether total coliform bacteria are from the intestines of warm-blooded animals. For more info visit the Department of Environmental Services

NITRATE should be less than 10 MG/L; NITRITE should be less than 1.0 MG/L
Major sources from fertilizer, sewage and feed lots. Excess nitrates could be poisonous, especially to infants. For more info visit the Department of Environmental Services

FLOURIDE should be less than 4.0 MG/L
Fluoride up to 1 MG/L is effective in reducing dental cavities. If consuming water that has 1 – 2.4 MG/L fluoride, fluoride supplements should not be taken. Over 4 MG/L, mottling of teeth may occur. For more info visit the Department of Environmental Services

ARSENIC should be less than .01 MG/L
Arsenic is odorless and colorless. In water, it can result from both natural and industrial activities including use of pesticides and industrial waste disposal. The EPA has classified as a known human carcinogen. For more info visit the Department of Environmental Services

URANIUM should be less than 0.030 mg/L
Uranium is a common naturally occurring and radioactive substance. It is a normal part of rocks, soil, air, and water, and it occurs in nature in the form of minerals.
Uranium has demonstrated toxic effects on human kidneys leading to kidney inflammation and changes in urine composition. Uranium can decay into other radioactive substances, such as radium, which can cause cancer with extensive exposures over a long enough period of time (US EPA, 2013).

LEAD should be less than .015 MG/L ACTION LEVEL
Major source is leaching from lead piping and solders as a result of acidic (low pH) water, which corrodes plumbing. Lead could be poisonous, especially to children. Treatment recommended if result exceeds action level. For more info visit the Department of Environmental Services

COPPER should be less than 1.3 MG/L ACTION LEVEL
Copper is a reddish metal that occurs naturally in rock, soil, plants, animals, water, sediment, and air. Copper may occur in drinking water either from contaminated well water or corroded copper pipes. Corrosion of pipes is by far the greatest cause for concern. Immediate health effects from drinking water with very high levels of copper include nausea, vomiting, diarrhea, and stomach cramps. Drinking water with high levels of copper for many years could cause liver or kidney damage. For more info visit the Department of Environmental Services

RADON in Water
State Guidelines Vary:
New Hampshire: should be less than 2,000 pCi/L
Maine: should be less than 4,000 pCi/L
Massachusetts: should be less than 10,000 pCi/L
Any Public Water Supply: must be less than 4,000 pCi/L

Radon is a cancer-causing, radioactive gas. You can’t see radon. And you can’t smell it or taste it. The radon in your water supply poses an inhalation risk and an ingestion risk. Research has shown that your risk of lung cancer from breathing radon in air is much larger than your risk of stomach cancer from swallowing water with radon in it. Most of your risk from radon in water comes from radon released into the air when water is used for showering and other household purposes.

RADON in Air should be less than 4 pCi/L
Radon is a cancer causing, radioactive gas. It comes from the natural decay of uranium that is found in nearly all soils. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation.

EPA believes that any radon exposure carries some risk – no level of radon is safe. Even radon levels below 4 pCi/L pose some risk, and you can reduce your risk of lung cancer by lowering your radon level.

Link to info about Radon in NH



*Not health concerns, but treatment is recommended

pH should be between 6.5 - 8.5
A measure of acid content in water. 7 is neutral; lower values are acidic, and values above 7 are basic. Acidic water is corrosive to plumbing and may cause toxic metals such as lead and copper to leach into water.

HARDNESS: 0.75 MG/L is low hardness; 76-150 MG/L is moderate hardness; 150-175 MG/L is high hardness; 175+ is extremely high hardness
Usually caused by presence of calcium and magnesium ions in water. Causes soap scum, requires more soap to wash, and makes skin dry. Hard water creates a scale-buildup on hot water heater elements, furnace coils and dishwashers, reducing their life. Hard water scale buildup in pipes will cause low water pressure. For more info visit the Department of Environmental Services

CHLORIDES should be less than 250 MG/L
Major sources are road salt used for de-icing roads, and seawater trapped in sediments. High chlorides contribute to the corrosiveness of water on pipes and heating equipment. For more info visit the Department of Environmental Services

IRON should be less than .30 MG/L
Iron produces a reddish-brown discoloration and staining on clothing and fixtures at levels above .30 MG/L. It can also cause blonde hair to have a reddish color. For more info visit the Department of Environmental Services

MANGANESE should be less than .05 MG/L
Manganese produces a brownish discoloration, and at high levels produces an unpleasant odor and taste in water. It may also produce black deposits and ugly black filaments. For more info visit the Department of Environmental Services

A sodium level of 20 MG/L is recommended by the EPA for public water supplies, however there are no official guidelines for private wells. A level of <250 MG/L is generally recommended. Hypertensive and heart patients should consult with a physician as to what level is acceptable for their needs. For more info visit the Department of Environmental Services

TANNINS/LIGNINS should be less than 2.0 MG/L
Tannins are the result of decayed vegetation. Causes reddish-brown discoloration of water, light staining, and can affect the taste of foods and beverages as well as interfere with the performance of various water treatment units.

Providing Services to the following New Hampshire and Maine Communitees
Lee, NH - Madbury, NH - Newmarket, NH - Newington, NH - Stratham, NH - - Newfields, NH - East Kingston, NH - Kensington, NH - Portsmouth, NH - New Castle, NH - Rye, NH
North Hampton, NH - Hampton, NH - Hampton Beach, NH - South Hampton, NH - Exeter, NH - Fremont, NH - Brentwood, NH - Kingston, NH - Plaistow, NH - Danville, NH - East Kingston, NH
Hampton Falls, NH - Hampstead, NH - Nottingham, NH - Durham, NH - Auburn, NH - Candia, NH - Newton, NH - Epping, NH - Barnstead, NH - Nottingham, NH - Northwood, NH - Barrington, NH
Bow Lake, NH - Epsom, NH - Rochester, NH - Somersworth, NH - Strafford, NH - Farmington, NH - New Durham, NH - Dover, NH - Gonic, NH - Milton, NH - Middleton, NH - York, ME
South Berwick, ME - North Berwick, ME - Berwick, ME - Lebanon, ME - Kittery, ME - Wells, ME - Eliot, ME - Seacoast NH - Southern Maine - Coastal Maine - Strafford County - Rockingham County