Mich. Comp. Laws § 324.11565: General use parameters for compost.

Sec. 11565.

All of the following are general use parameters for compost:

(a) pH.

(b) Carbon-to-nitrogen ratio.

(c) Soluble salts.

(d) Total available nitrogen.

(e) Phosphorus reported as P2O5.

(f) Potassium reported as K2O.

(g) Calcium.

(h) Magnesium.

(i) Chloride.

(j) Sulfate.

(k) Arsenic.

( l ) Cadmium.

(m) Copper.

(n) Lead.

(o) Mercury.

(p) Molybdenum.

(q) Nickel.

(r) Selenium.

(s) Zinc.

(t) Pathogens.

(u) Fecal coliforms.

(v) Salmonella.

(w) Percent organic matter.

(x) Percent foreign matter.