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EWG's Tap Water Database — 2021 UPDATE

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Houlton Mobile Home Park

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Maine Department of Health and Human Services - Division of Environmental Health, 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

  • Houlton, Maine
  • Serves: 140
  • Data available: 2014-2019
  • Source: Groundwater

Contaminants Detected

7

EXCEED
EWG HEALTH
GUIDELINES

12 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

Chloroform

Potential Effect: cancer4.5x EWG'S HEALTH GUIDELINE
THIS UTILITY1.80 ppb
EWG HEALTH GUIDELINE0.4 ppb
NO LEGAL LIMIT
DETAILS
X

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

Chloroform was found at 4.5 times above EWG's Health Guideline.

EWG Health Guideline

0.4 ppb or less

This Utility

1.8 ppb

National Average

15.5 ppb

State Average

18.2 ppb
NO LEGAL LIMIT
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 0.4 ppb for chloroform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

Pollution Sources

Treatment Byproducts

Filtering Options

Activated Carbon

Reverse Osmosis

Nitrate

Potential Effect: cancer4.4x EWG'S HEALTH GUIDELINE
THIS UTILITY0.618 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 4.4 times above EWG's Health Guideline.

EWG Health Guideline

0.14 ppm or less

This Utility

0.618 ppm

Legal Limit

10 ppm

National Average

0.935 ppm

State Average

0.219 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

Nitrate and nitrite

Potential Effect: cancer5.9x EWG'S HEALTH GUIDELINE
THIS UTILITY0.825 ppm
EWG HEALTH GUIDELINE0.14 ppm
LEGAL LIMIT10 ppm
DETAILS
X

Nitrate and nitrite

more about
this contaminant

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

Nitrate and nitrite was found at 5.9 times above EWG's Health Guideline.

EWG Health Guideline

0.14 ppm or less

This Utility

0.825 ppm

Legal Limit

10 ppm

National Average

0.888 ppm

State Average

0.199 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 health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

Pollution Sources

Agriculture

Runoff & Sprawl

Naturally Occurring

Filtering Options

Reverse Osmosis

Ion Exchange

Perfluorobutane sulfonate (PFBS)

Potential Effect: 16x EWG'S HEALTH GUIDELINE
THIS UTILITY16.2 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 16 times above EWG's Health Guideline.

EWG Health Guideline

1 ppt or less

This Utility

16.2 ppt

National Average

156.3 ppt

State Average

0.052 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

Perfluorohexane sulfonate (PFHXS)

Potential Effect: 62x EWG'S HEALTH GUIDELINE
THIS UTILITY62.0 ppt
EWG HEALTH GUIDELINE1 ppt
NO LEGAL LIMIT
DETAILS
X

Perfluorohexane sulfonate (PFHXS)

more about
this contaminant

Perfluorohexane sulfonate is a member of a group of perfluorinated chemicals used in many consumer products. 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.

Perfluorohexane sulfonate (PFHXS) was found at 62 times above EWG's Health Guideline.

EWG Health Guideline

1 ppt or less

This Utility

62 ppt

National Average

0.361 ppt

State Average

0.469 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 perfluorohexane 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

Perfluorooctane sulfonate (PFOS)

Potential Effect: 71x EWG'S HEALTH GUIDELINE
THIS UTILITY70.6 ppt
EWG HEALTH GUIDELINE1 ppt
PROPOSED LEGAL LIMIT4 ppt
DETAILS
X

Perfluorooctane sulfonate (PFOS)

more about
this contaminant

Perfluorooctane sulfonate (PFOS) 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.

Perfluorooctane sulfonate (PFOS) was found at 71 times above EWG's Health Guideline.

EWG Health Guideline

1 ppt or less

This Utility

70.6 ppt

Proposed Legal Limit

4 ppt

National Average

0.908 ppt

State Average

1.62 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 1 ppt for PFOS 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

Total trihalomethanes (TTHMs)†

Potential Effect: cancer14x EWG'S HEALTH GUIDELINE
THIS UTILITY2.15 ppb
EWG HEALTH GUIDELINE0.15 ppb
LEGAL LIMIT80 ppb
DETAILS
X

Total trihalomethanes (TTHMs)

more about
this contaminant

Trihalomethanes are cancer-causing contaminants that form during water treatment with chlorine and other disinfectants. The total trihalomethanes group includes four chemicals: chloroform, bromodichloromethane, dibromochloromethane and bromoform.

Total trihalomethanes (TTHMs) was found at 14 times above EWG's Health Guideline.

EWG Health Guideline

0.15 ppb or less

This Utility

2.15 ppb

Legal Limit

80 ppb

National Average

29.7 ppb

State Average

19.9 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 health guideline of 0.15 parts per billion, or ppb, for the group of four trihalomethanes, or THM4/TTHM, was defined in a peer-reviewed scientific study by EWG and represents a one-in-one-million lifetime cancer risk level.

Pollution Sources

Treatment Byproducts

Filtering Options

Activated Carbon

Reverse Osmosis

Includes 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.



† HAA5 is a contaminant group that includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. HAA9 is a contaminant group that includes the chemicals in HAA5 and bromochloroacetic acid, bromodichloroacetic acid, chlorodibromoacetic acid and tribromoacetic acid. TTHM is a contaminant group that includes bromodichloromethane, bromoform, chloroform and dibromochloromethane.

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-Dibromoethylene , 1,2-Dichloroethane , 1,2-Dichloropropane , 1,3,5-Trimethylbenzene , 1,3-Dichloropropane , 2,2-Dichloropropane , 2-Hexanone , Antimony , Arsenic , Benzene , Beryllium , Bromobenzene , Bromochloromethane , Bromodichloromethane , Bromoform , Bromomethane , Cadmium , Carbon tetrachloride , Chloroethane , Chloromethane , cis-1,2-Dichloroethylene , cis-1,3-Dichloropropene , Cyanide , Dibromoacetic acid , Dibromochloromethane , Dibromomethane , Dichloroacetic acid , Dichlorodifluoromethane , Dichloromethane (methylene chloride) , Ethylbenzene , Fluoride , Haloacetic acids (HAA5) , Hexachlorobutadiene , Isopropylbenzene , m-Dichlorobenzene , Manganese , Mercury (inorganic) , Methyl ethyl ketone , Methyl isobutyl ketone , Monobromoacetic acid , Monochloroacetic acid , Monochlorobenzene (chlorobenzene) , MTBE , n-Butylbenzene , N-ethyl perfluorooctane sulfonamido acetic acid (N, n-Propylbenzene , Naphthalene , Nitrite , Nitrobenzene , o-Chlorotoluene , o-Dichlorobenzene , p-Chlorotoluene , p-Dichlorobenzene , p-Isopropyltoluene , Perfluoroheptanoic acid (PFHPA) , Perfluorononanoic acid (PFNA) , Perfluorooctanoic acid (PFOA) , sec-Butylbenzene , Selenium , Silver , Styrene , tert-Butylbenzene , Tetrachloroethylene (perchloroethylene) , Thallium , Toluene , trans-1,2-Dichloroethylene , trans-1,3-Dichloropropene , Trichloroacetic acid , Trichloroethylene , Trichlorofluoromethane , Vinyl chloride , Xylenes (total)

Houlton Mobile Home Park compliance with legally mandated federal standards:

  • From April 2019 to March 2021, Houlton Mobile Home Park complied with health-based drinking water standards.
  • 12 QUARTERS
    in violation of any federal drinking water standard from April 2019 to March 2021

Information in this section on Houlton Mobile Home Park 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
Chloroform
Nitrate
Nitrate & nitrite
Perfluorobutane sulfonate (PFBS)
Perfluorohexane sulfonate (PFHXS)
Perfluorooctane sulfonate (PFOS)
Total trihalomethanes (TTHMs)
OTHER CONTAMINANTS
DETECTED
Barium
Chromium (total)
Perfluorohexanoic Acid (PFHxA)
Radium, combined (-226 & -228)
Uranium, combined (pCi/L)

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