Texas — TDA

Table 1 
Allowable Concentration of Trace Elements in Commercial Fertilizers When Conforming to §65.17(d)(2)

Element Maximum, ppm
Arsenic 41
Cadmium 39
Copper 1500*
Lead 300
Mercury 17
Molybdenum 18*
Nickel 420
Selenium 100*
Zinc 2800*

*When not guaranteed

Reference: 
Commercial Fertilizer Rules