Groundwater Analytical's normal business hours are as follows: Client Services and Administrative Services operate Monday through Friday, from 8:00 a.m. to 5:00 p.m. Courier Scheduling and Sample Receiving operate Monday through Friday, from 7:30 a.m. to 7:30 p.m. Sample Receiving operates Saturdays, from 9:00 a.m. to 12:00 p.m., upon prior arrangement. Groundwater Analytical closes in observance of the following holidays: New Year's Day (January 1st) Washington's Birthday (Third Monday in February) Memorial Day (Last Monday in May) Independence Day (July 4th) Labor Day (First Monday in September) Columbus Day (Second Monday in October) Thanksgiving Day (Fourth Thursday in November) Day after Thanksgiving (Fourth Friday in November) Christmas Day (December 25th)
