Refer to notes  for explanation of units, definitions, and abbreviations.

Text in green is language required by the US Environmental Protection Agency.

Copper and Lead
 

Samples were collected from 76 homes, primarily from homes built between 1980 and 1984.

Percentile reporting means the data is first organized from smallest to the largest. In the case of copper, there were 76 samples ranging from 0.01 to 0.33 mg/L. We then determine which sample to evaluate by taking 90% of 76, which is 68. We then pick the 68th data result from the smallest as the reporting level. In this case, 0.33 mg/L. Ninety percent of the data is below 0.33 mg/L while the remaining ten percent is above. For lead there were also 76 samples and the 90th percentile was ND, or no detection.

Radiological

Radon is a radioactive gas that you cannot see, taste, or smell. It is found throughout the United States. Radon can move up through the ground and into a home through cracks and holes in the foundation. Radon can build up to high levels in all types of homes. Radon can also get into indoor air when released from tap water from showering, washing dishes, and other household activities. Compared to radon entering the home through soil, radon entering the home through tap water will in most cases be a small source of radon in indoor air. Radon is a known human carcinogen. Breathing air containing radon can lead to lung cancer. Drinking water containing radon may also cause increased risk of stomach cancer. If you are concerned about radon in your home, test the air in your home. Testing is inexpensive and easy. For additional information, call your state radon program or call EPA’s Radon Hotline (800-SOS-RADON).