There are two locations and definitions for RQs:
1. 40 CFR 302.4: TABLE 302.4—LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES
RQ therein being defined as:
“Reportable quantity (‘‘RQ’’) means that quantity, as set forth in this part, the release of which requires notification pursuant to this part;…”
2. 49 CFR 172.101: TABLE 1 TO APPENDIX A—HAZARDOUS SUBSTANCES OTHER THAN RADIONUCLIDES
Where, if you are shipping a hazardous material you will see that shipping the RQ of that substance in a single container causes that shipment to be a “Hazardous Substance”. On the shippers’ declaration, you would list that material with “RQ” annotated in the HM column.
Note: You would report storage of a “Threshold Quantity” of a hazardous chemical for EPCRA reporting requirements under SARA Title III. The threshold quantity for chloroform is 10,000 lbs. You can confirm that by searching the “Consolidated List lf Lists” available for download at http://www2.epa.gov/epcra/consolidated-list-lists. The big table is presented in two sort orders—first by CAS then by IUPAC or common name.
Do "Reportable Quantities," RQ's, refer to storage or release?
In other words the RQ for chloroform is listed as 10 pounds and the RQ for silver nitrate as one pound. Is there any requirement that storage of this amount of these chemicals in Texas be reported, and if so, to whom? I can understand reporting release of these chemicals in the stated amounts, but reporting mere storage would require a lot of paperwork.
Ruth Ann Murphy, Ph.D.
Professor of Chemistry
Chairperson, Department of Chemistry, Environmental Science and Geology
Co-Chairperson, Health Professions Advisory Committee
Amy LeVesconte Professorship of Chemistry
JAMP Faculty Director
The University of Mary Hardin-Baylor
900 College Street
Belton, TX 76513-2599
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