Category: Q&A

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 […]

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Should 9,500 Pounds of 1-Bromopropane Used at a Facility Be Included in the TRI Report?

Q. If a facility uses 9,500 pounds (lb) of 1-bromopropane for reporting year 2016, should it be included in the Toxics Release Inventory (TRI) report? A. 1-bromopropane is on the list of chemicals required to be included in the 2016 Toxic Release Inventory (TRI) reports.  However, the facility described in the question would not be […]

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Where Can I Find a List of Toxicity Contaminants and Their Thresholds?

Q. Where can I find a list of thresholds for metal/chemicals to use to determine if the sludge-type waste from the triple basin collection system on our city sewer line is hazardous? A. From your question, we infer that you have already determined that your waste is not a listed hazardous waste and that you […]

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How Often Do I Need to Conduct Opacity Monitoring on My Boilers?

Q. I have an Illinois Title V permit and we run three boilers with two firing natural gas and one we blend natural gas and biogas. We have the ability to use diesel and oil as well, but we simply do not use these. Although, we keep them on our permit just in case we […]

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Do SQGs Need to Inspect Container Areas If There Are No Containers Present and for How Long Do Weekly Inspection Logs Need to be Kept?

Q. As a small quantity generator (SQGs), we know that our waste containers during the 180-day accumulation period must be inspected weekly. Does the area still need to be inspected weekly when there are no containers? Also, is there a record retention requirement for the weekly inspection log?

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