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EWG's Tap Water Database — 2021 UPDATE

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Bitim Apartments

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the New Hampshire Department of Environmental Services, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2021 - March 2021), tap water provided by this water utility was in compliance with federal health-based drinking water standards.

Utility Details

  • Londonderry, New Hampshire
  • Serves: 28
  • Data available: 2014-2019
  • Source: Groundwater

Contaminants Detected

5

EXCEED
EWG HEALTH
GUIDELINES

15 Total Contaminants

  • Legal does not necessarily equal safe. Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
  • Legal limits for contaminants in tap water have not been updated in almost 20 years.
  • The best way to ensure clean tap water is to keep pollution out of source water in the first place.

Looking for a countertop water filter?

Find out which filters earned EWG's recommendation

See the guide

Contaminants Detected

Arsenic

over legal limit
THIS UTILITY12.0 ppb
EWG HEALTH GUIDELINE0.004 ppb
LEGAL LIMIT10 ppb
DETAILS
X

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

Arsenic was found at 3,006 times above EWG's Health Guideline.

EWG Health Guideline

0.004 ppb or less

This Utility

12 ppb

Legal Limit

10 ppb

National Average

0.647 ppb

State Average

0.414 ppb
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppb = parts per billion

Health Risks

The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

Pollution Sources

Agriculture

Industry

Naturally Occurring

Filtering Options

Reverse Osmosis

Ion Exchange

Nitrate

Potential Effect: cancer29x EWG'S HEALTH GUIDELINE
THIS UTILITY4.06 ppm
EWG HEALTH GUIDELINE0.14 ppm
LEGAL LIMIT10 ppm
DETAILS
X

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

Nitrate was found at 29 times above EWG's Health Guideline.

EWG Health Guideline

0.14 ppm or less

This Utility

4.06 ppm

Legal Limit

10 ppm

National Average

0.935 ppm

State Average

0.421 ppm
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2017-2019.
ppm = parts per million

Health Risks

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

Pollution Sources

Agriculture

Runoff & Sprawl

Naturally Occurring

Filtering Options

Reverse Osmosis

Ion Exchange

Perfluorobutane sulfonate (PFBS)

Potential Effect: 2.7x EWG'S HEALTH GUIDELINE
THIS UTILITY2.65 ppt
EWG HEALTH GUIDELINE1 ppt
NO LEGAL LIMIT
DETAILS
X

Perfluorobutane sulfonate (PFBS)

more about
this contaminant

Perfluorobutane sulfonate (PFBS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

Perfluorobutane sulfonate (PFBS) was found at 2.7 times above EWG's Health Guideline.

EWG Health Guideline

1 ppt or less

This Utility

2.65 ppt

National Average

156.3 ppt

State Average

0.296 ppt
NO LEGAL LIMIT
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2013-2019.
ppt = parts per trillion

Health Risks

The EWG Health Guideline of 1 ppt for perfluorobutane sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

Pollution Sources

Industry

Runoff & Sprawl

Filtering Options

Activated Carbon

Reverse Osmosis

Perfluorooctanoic acid (PFOA)

Potential Effect: cancer979x EWG'S HEALTH GUIDELINE
THIS UTILITY6.85 ppt
EWG HEALTH GUIDELINE0.007 ppt
PROPOSED LEGAL LIMIT4 ppt
DETAILS
X

Perfluorooctanoic acid (PFOA)

more about
this contaminant

Perfluorooctanoic acid (PFOA) is a member of a group of perfluorinated chemicals used in many consumer products. PFOA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

Perfluorooctanoic acid (PFOA) was found at 979 times above EWG's Health Guideline.

EWG Health Guideline

0.007 ppt or less

This Utility

6.85 ppt

Proposed Legal Limit

4 ppt

National Average

1.15 ppt

State Average

3.2 ppt
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2013-2019.
ppt = parts per trillion

Health Risks

The EWG Health Guideline of 0.007 ppt for PFOA was proposed by California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

Pollution Sources

Industry

Runoff & Sprawl

Filtering Options

Activated Carbon

Reverse Osmosis

Uranium

Potential Effect: cancer35x EWG'S HEALTH GUIDELINE
THIS UTILITY15.21 pCi/L
EWG HEALTH GUIDELINE0.43 pCi/L
LEGAL LIMIT20 pCi/L
DETAILS
X

Uranium is a known human carcinogen. The federal legal limit for uranium is set at 30 micrograms per liter (corresponding to parts per billion), but utilities can also report uranium in picocuries per liter (pCi/L), which is a measure of radioactivity in water. EWG translated all uranium results to pCi/L using a conversion factor developed by the EPA. With this conversion approach, the limit of 30 ppb corresponds to 20 pCi/L. Drinking water with this much uranium would cause more than 4.6 cancer cases in a population of 100,000. California set a public health goal for uranium of 0.43 pCi/L.

Uranium was found at 35 times above EWG's Health Guideline.

EWG Health Guideline

0.43 pCi/L or less

This Utility

15.21 pCi/L

Legal Limit

20 pCi/L

National Average

1.04 pCi/L

State Average

0.28 pCi/L
The state and national averages were calculated using the averages of the contaminant measurements for each utility in 2014-2019.
pCi/L = picocuries per liter

Health Risks

The EWG Health Guideline of 0.43 pCi/L for uranium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. Three most common uranium isotopes are U-234, U-235 and U-238. All isotopes of uranium are radioactive, and the total radioactivity depends on the ratio of isotopes. This health guideline protects against cancer.

Pollution Sources

Industry

Naturally Occurring

Filtering Options

Reverse Osmosis

Ion Exchange

Includes chemicals detected in 2017-2019 for which annual utility averages exceeded the federal Maximum Contaminant Level (MCL); chemicals detected in 2017-2019 for which annual utility averages exceeded an EWG-selected health guideline established by a federal or state public health authority; radiological contaminants detected between 2014 and 2019.


Other Contaminants Tested


Chemicals tested for but not detected from 2014 to 2019:

1,1,1,2-Tetrachloroethane , 1,1,1-Trichloroethane , 1,1,2,2-Tetrachloroethane , 1,1,2-Trichloroethane , 1,1-Dichloroethane , 1,1-Dichloroethylene , 1,1-Dichloropropene , 1,2,3-Trichlorobenzene , 1,2,3-Trichloropropane , 1,2,4-Trichlorobenzene , 1,2,4-Trimethylbenzene , 1,2-Dibromo-3-chloropropane (DBCP) , 1,2-Dichloroethane , 1,2-Dichloropropane , 1,3,5-Trimethylbenzene , 1,3-Dichloropropane , 1,4-Dioxane , 2,4,5-TP (Silvex) , 2,4-D , 3-Hydroxycarbofuran , Alachlor (Lasso) , Aldicarb , Aldicarb sulfone , Aldicarb sulfoxide , Aldrin , Antimony , Atrazine , Baygon (Propoxur) , Benzene , Benzo[a]pyrene , Beryllium , Bromobenzene , Bromochloromethane , Bromodichloromethane , Bromoform , Bromomethane , Butachlor , Cadmium , Carbaryl , Carbofuran , Carbon tetrachloride , Chlordane , Chloroform , Chloromethane , cis-1,2-Dichloroethylene , cis-1,3-Dichloropropene , Dalapon , Di(2-ethylhexyl) adipate , Dibromochloromethane , Dibromomethane , Dicamba , Dichlorodifluoromethane , Dichloromethane (methylene chloride) , Dieldrin , Dinoseb , Diquat , Endrin , Ethyl ether , Ethyl tert-butyl ether , Ethylbenzene , Ethylene dibromide , Glyphosate , Heptachlor , Heptachlor epoxide , Hexachlorobenzene (HCB) , Hexachlorobutadiene , Hexachlorocyclopentadiene , Hexachloroethane , Isopropyl ether , Isopropylbenzene , Lindane , m-Dichlorobenzene , Mercury (inorganic) , Methiocarb , Methomyl , Methoxychlor , Metolachlor , Metribuzin , Monochlorobenzene (chlorobenzene) , MTBE , n-Butylbenzene , n-Propylbenzene , Naphthalene , Nitrite , o-Chlorotoluene , o-Dichlorobenzene , Oxamyl (Vydate) , p-Chlorotoluene , p-Dichlorobenzene , p-Isopropyltoluene , Pentachlorophenol , Perfluoroheptanoic acid (PFHPA) , Perfluorononanoic acid (PFNA) , Picloram , Polychlorinated biphenyls (PCBs) , Propachlor , Radium, combined (-226 & -228) , sec-Butylbenzene , Selenium , Simazine , Styrene , tert-Amyl methyl ether , tert-Butyl alcohol , tert-Butylbenzene , Tetrachloroethylene (perchloroethylene) , Tetrahydrofuran , Thallium , Toluene , Total trihalomethanes (TTHMs) , Toxaphene , trans-1,2-Dichloroethylene , trans-1,3-Dichloropropene , Trichloroethylene , Trichlorofluoromethane , Vinyl chloride , Xylenes (total)

Bitim Apartments compliance with legally mandated federal standards:

  • From April 2019 to March 2021, Bitim Apartments complied with health-based drinking water standards.
  • 12 QUARTERS
    in violation of any federal drinking water standard from April 2019 to March 2021
  • Over the last 3 years this water utility has spent
    8 QUARTERS
    in significant violation of federal drinking water standards

Information in this section on Bitim Apartments comes from the U.S. EPA Enforcement and Compliance History Online database (ECHO).

LEARN MORE ABOUT THIS UTILITY

Water Filters That Can Reduce Contaminant Levels

ContaminantActivated Carbonactivated carbonReverse Osmosisreverse osmosisIon Exchangeion exchange
CONTAMINANTS ABOVE
HEALTH GUIDELINES
Arsenic
Nitrate
Perfluorobutane sulfonate (PFBS)
Perfluorooctanoic acid (PFOA)
Uranium, combined (pCi/L)
OTHER CONTAMINANTS
DETECTED
Barium
Chromium (total)
Di(2-ethylhexyl) phthalate
Fluoride
Manganese
Perfluorobutanoic acid (PFBA)
Perfluorohexane sulfonate (PFHXS)
Perfluorohexanoic Acid (PFHxA)
Perfluorooctane sulfonate (PFOS)
Perfluoropentanoic acid (PFPeA)

Take Action

Contact Your Local Official

One of the best ways to push for cleaner water is to hold accountable the elected officials who have a say in water quality – from city hall and the state legislature to Congress all the way to the Oval Office – by asking questions and demanding answers.

LEARN MORE

Filter Out Contaminants

Check out our recommendations for filters to protect your water against the detected contaminants.

EWG’S WATER FILTER GUIDE