Here are some links that may help you:
The first is the Town of Chelmsford site. It will get you to the application and the brochure.
The next two bypass the town site and go directly to the application and brochure.
k12.ma.us/dsweb/Get/Document- 41609/FARMERS%20MARKET%202009% 20(1)%5B1%5D.pdf%20
We are counting down to July 9!