Biosolids/Industrial Solids/Compost Testing

Brookside Laboratories is experienced in performing a wide range of tests on biosolids and other solid matrices including industrial solids and composts. Our comprehensive reporting format for biosolids includes practical data such as quantity of analytes in tons/acre and annual application rates based on pollutant limits. For industrial solids we offer specialty testing such as TCLP (Toxicity Characteristic Leaching Procedure) testing for heavy metals. We also test compost material for heavy metals and microbiological tests. We offer a package (listed below) that includes all of the required testing needed for EPA compost quality standards for Class II composting facilities.

Below are examples of packages that Brookside offers:

Test Code


Standard Sludge Characteristics – includes total solids, Total Kjeldahl Nitrogen, Nitrate, Ammonia, pH, Total Phosphorus, Total Potassium, Specific Gravity


Total Volatile Solids


CFR Part 503 Heavy Metals – includes arsenic, cadmium, chromium, lead, mercury, molybdenum, nickel, selenium, zinc


Fecal Coliform (MPN)


EPA Compost Package – includes total solids, arsenic, cadmium, cobalt, copper, lead, mercury, nickel, selenium, zinc, fecal coliform, Salmonella


TCLP Bottle Extract


TCLP Metals







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