| TESTS | ||||||||
| 1. Basic Test – Moisture, Solids, pH, Electrical Conductivity, Total Nitrogen, Organic N (Total Nitrogen minus Ammonium-N), Ammonium-N, Nitrate-N, Phosphorus, Potassium, Sulfur, Zinc, Sodium, Chloride | $ 48.00 | |||||||
| 2. Complete Test – Basic Test plus Ash, Calcium, Magnesium, Iron, Manganese, Copper, Boron | $ 55.00 | |||||||
Send sludge samples to the lab in plastic containers. Do not use glass containers.