Did you know that your rock and sand products often go through a wash cycle?…Continued
Tag: quality control
Making gravel is a lot like making cookies from scratch: it starts with a recipe.
In this article, you’ll learn about how we create our product recipes, the basics of crushing rock, and the ways we’re changing the system.…Continued
Washington Rock’s “Construction Aggregates” video follows our products from source to final placement.
Washington Rock’s organic topsoil is unique in the Tacoma area.
I first saw my dad (Harry Hart, the founder of Washington Rock) reading Out of Crisis about 10 years ago. The cover was blue and featured a small portrait of an elderly man. The portrait was of the author, W. Edwards Deming. …Continued
Each day, the quality control team—Ryan, Ian, and Trevor—test several materials for quality and compliance.