William X Wall Experiment Station | MassDEP


Wall Experiment Station
37 Shattuck St, Lawrence, MA 01843


Division of Environmental Analysis 978- 682-5237

Fax: 978-688-0352 | Hours: M-F 8:45am - 5pm except State Holidays

Air Assessment Branch 978-975-1138

Fax: 978-688-0352 | Hours: M-F 8:45am - 5pm except State Holidays



The Division of Environmental Analysis (DEA) and the Air Assessment Branch (AAB) of MassDEP are housed in the Senator William X. Wall Experiment Station in Lawrence.

DEA includes the state environmental reference laboratory for the Commonwealth of Massachusetts. It is also designated as the state principal drinking water laboratory.

AAB is responsible for 42 air quality monitoring stations located in 27 cities and towns throughout the state.


Monday - Friday:
8:45 am-5:00 pm


By car
Take US Route 93 North to Exit 45 (River Road).
Turn left at the top of the ramp and proceed 2 miles.
Bear left at the fork in the road (Newton Street).
Do not go under the railroad trestle in front of you at this fork!
Proceed to the end of the road and turn right onto Shattuck Street.
The Station is the first building on the left. Parking is available on-site.

By Train / Taxi
Take the MBTA Haverhill Commuter Rail to Lawrence/McGovern Station.
A schedule is available from www.mbta.com.
By taxi, exit the parking lot by turning left (west -- toward the clock tower) onto Merrimack Street. Proceed to the third set of traffic lights at the end of Merrimack Street, at Halloween Headquarters.
Turn left (south) onto South Broadway.
Take the first right turn (west) onto Shattuck Street, opposite Dunkin' Donuts.
The Station is the second building on the right.


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