EPA reports air quality in San Miguel neighborhood continues to be safe

  • The area around San Miguel School, like numerous other locations in Silicon Valley, has been undergoing groundwater monitoring and cleanup activities since the 1980s.

    The Environmental Protection Agency (EPA) also checks air samples at regular intervals to ensure that air in buildings located in the area of concern remains of good quality. (Groundwater is found naturally beneath the earth’s surface. In many areas throughout the nation where groundwater contamination has been detected, state and federal agencies require regular monitoring and clean-up activities to protect public health.)

    There are two key points we would like to make:

    • All recent results of EPA indoor air quality testing in the San Miguel neighborhood to date have indicated that the air is clean and safe for children and adults.
    • Neighborhood drinking water is not affected by groundwater contamination.

    Our commitment to providing safe schools for our children, of course, includes the responsibility of preserving their good health. Please be assured that if we were ever to learn of any type of safety or health concern at any of our schools, we would contact you immediately and take any necessary measures to keep our children safe.

    San Miguel Elementary School and the Sunnyvale School District will continue working with the EPA on air sampling and other efforts to ensure that the health and safety of students, families and staff are protected. Please let either of us know if you have any questions or would like to talk more about it.


    Esteban Ybarra

    Principal, San Miguel School

    Sunnyvale School District

    (408) 522-8278



    Alia Wilson

    Communications Coordinator

    Sunnyvale School District

    (408) 522-8200 ext. 1084



    For more information, please see the attached letters, or the attached fact sheets provided by the EPA, or contact the agency directly at 415-972-3050. 

    Last Reviewed March 1, 2023