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 am - 3pm
Saturday & Sunday    Closed

Sample Drop-off Hours

Monday-Thursday:      10 am - 3 pm
24 hr Outside Refrigerator: Sunday after 12 pm – Thursday 3pm

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


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