Drinking Water Testing

Within Yakima County, there are 3 certified water laboratories where residents can take samples of their drinking water for water quality testing. The samples must be taken to the lab directly; the Yakima Health District does not have testing facilities or testing supplies (e.g., bottles, kits, etc.).

Drinking Water Testing Facilities:

Cascade Analytical, Inc
1008 W Ahtanum
Yakima, WA 98903
(509) 452-7707

Valley Environmental Laboratory
201 E. 'D' St.
Yakima, WA 98901
(509) 575-3999

Ag Health Laboratories
445 Barnard Blvd
Sunnyside, WA 98944
(509) 836-2020