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EWG's Tap Water Database — 2021 UPDATE

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Tampico Drive Well Owners Association

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Washington State Department of 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

  • Yakima County, Washington
  • Serves: 42
  • Data available: 2014-2019
  • Source: Groundwater

Contaminants Detected

3

EXCEED
EWG HEALTH
GUIDELINES

7 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.

Legal ≠ Safe

EWG Health Guidelines fill the gap in outdated government standards.

The federal government’s legal limits are not health-protective. The EPA has not set a new tap water standard in almost 20 years, and some standards are more than 40 years old.

Contaminants Detected

Antimony

Potential Effect: harm to the stomach and intestines3.4x EWG'S HEALTH GUIDELINE
THIS UTILITY3.40 ppb
EWG HEALTH GUIDELINE1 ppb
LEGAL LIMIT6 ppb
DETAILS
X

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

Antimony was found at 3.4 times above EWG's Health Guideline.

EWG Health Guideline

1 ppb or less

This Utility

3.4 ppb

Legal Limit

6 ppb

National Average

0.0154 ppb

State Average

0.00368 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 1 ppb for antimony 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 change to the stomach and intestines.

Pollution Sources

industry icon

Industry

urban area icon

Runoff & Sprawl

naturally occuring icon

Naturally Occurring

Filtering Options

reverse osmosis icon

Reverse Osmosis

Arsenic

Potential Effect: cancer775x EWG'S HEALTH GUIDELINE
THIS UTILITY3.10 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 775 times above EWG's Health Guideline.

EWG Health Guideline

0.004 ppb or less

This Utility

3.1 ppb

Legal Limit

10 ppb

National Average

0.647 ppb

State Average

1.12 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 icon

Agriculture

industry icon

Industry

naturally occuring icon

Naturally Occurring

Filtering Options

reverse osmosis icon

Reverse Osmosis

ion exchange icon

Ion Exchange

Thallium

Potential Effect: harm to internal organs13x EWG'S HEALTH GUIDELINE
THIS UTILITY1.27 ppb
EWG HEALTH GUIDELINE0.1 ppb
LEGAL LIMIT2 ppb
DETAILS
X

Thalium is a naturally occurring metal released into the environment from metal smelting and coal burning. Exposure to too much thalium can cause hair loss, liver damage, reduced sperm motility and nervous system impairment.

Thallium was found at 13 times above EWG's Health Guideline.

EWG Health Guideline

0.1 ppb or less

This Utility

1.27 ppb

Legal Limit

2 ppb

National Average

0.00374 ppb

State Average

0.0229 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 0.1 ppb for thallium 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 harm to internal organs.

Pollution Sources

industry icon

Industry

Filtering Options

reverse osmosis icon

Reverse Osmosis

ion exchange icon

Ion Exchange

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.


Other Contaminants Tested


Tampico Drive Well Owners Association compliance with legally mandated federal standards:

  • From April 2019 to March 2021, Tampico Drive Well Owners Association complied with health-based drinking water standards.
  • 7 QUARTERS
    in violation of any federal drinking water standard from April 2019 to March 2021

Information in this section on Tampico Drive Well Owners Association 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
Antimony
Arsenic
Thallium
OTHER CONTAMINANTS
DETECTED
Barium
Fluoride
Nitrate
Nitrate & nitrite

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