The Towns of BILLERICA and CHELMSFORD conduct helicopter applications of the biological larvicide, BTI, to control mosquito larvae usually the third week of April each year (April 21-April 26 2014). The applications will be conducted over specific large wetlands within the two communities. Applications will be done between daybreak and dusk. You may see a helicopter circling your area, particularly near wetlands.
Richard J. Day,
Chelmsford Board of Health
Billerica Health Department
There is an online map of the spray areas [pdf] on the Central Massachusetts Mosquito Control Project website, as well as a description of the process.
Anyone with questions should contact the Chelmsford Board of Health, 50 Billerica Road, Chelmsford, MA 01824, 978-250-5241.
HHW day located at the back parking lot of the Town Offices. Drive in through Chelmsford Street only.
Some household items collected are oven cleaners, antifreeze, car/boat batteries, stains, oil paints, pool chemicals,etc. See the complete list of household hazardous waste materials to be collected on page 6 of the 2013-2014 Chelmsford Recycles flyer [pdf].