Where Can I Find a Listing of Thresholds or Limits of Metals/Chemicals Signifying Our Separated Solids as Hazardous?
Q. We have a triple basin collection system on our city sewer line that allows solids and oils to separate out, leaving just the water to continue on to the city. We have the solids tested at a local lab, but I am having trouble finding a listing of thresholds or limits of metals/chemicals signifying […]