Howard Laboratories is a small, locally-owned laboratory
located in the historic district of Hatfield, Massachusetts.
We are a certified microbiology lab in the analysis of potable water. 

Laboratory Hours

Monday - Friday         10-3
Saturday & Sunday    Closed

Sample Drop-off Hours

Monday-Thursday:      10-3
24 hr Outside Refrigerator: Sunday after 10am – Thursday 3pm

Please note, we do not accept bacteria samples
after 3pm on Thursday, Friday or Saturday


If you water operator, we cannot accept
compliance samples left in the outside refrigerator.