Our Services

Twiss Analytical provides laboratory services to meet the needs of business and industry, private or governmental, water system purveyors and individual homeowners.  Whether you want to test for potable water, permit or site investigation or just want t test your soil so your fruits and vegetables can grow better, we are here to serve you.


Courier Services:
We provide courier services throughout Kitsap, Mason, Pierce, Clallam and Jefferson Counties.

Turnaround Time:
Twiss Analytical Laboratories, Inc.'s standard turnaround time is 10 business days or less after receipt of samples.  Sample sets requiring more than the standard reporting formats and deliverables will be completed within 30 business days.  Special analytical services turnaround times are arranged on a case by case basis.

Rush service may be available if laboratory workload permits.   Rush service may require overtime and/or weekend work for laboratory personnel to meet the requested turnaround time and as a result are available at  premium prices.

Completion of rush service is considered to the verbal or facsimile delivery of results prior to 5:00 p.m. on the due date.  Samples must be received before 12:00 p.m. if that day is to be counted for the rush service.

Quality Assurance:
Twiss Analytical Laboratories, Inc., performs chemical and micro biological determinations in accordance with the Quality Assurance/Quality Control program defined in the Twiss Labs Quality Assurance Manual.   Certified reference materials, method blanks, duplicate and/or spiked samples are analyzed with each sample batch processed by the laboratory.  All analytical data undergoes appropriate review prior to final reporting.