Fertilizer Product Database
The fertilizer product database provides laboratory reports on nine heavy metals (arsenic, cadmium, cobalt, mercury, molybdenum, lead, nickel, selenium, and zinc) for which Washington State has developed soil loading standards. The registrants may list a higher value than actually found by the laboratory in order to build a safety factor. All calculations are based on these values and either the state default application rates or the maximum application rate from the product label. The metal concentration levels for each registered product will be accessible to the public on this website.