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Perform a site assessment - Site assessment not received by OSFM.
Section 176.330 Procedures for Site Assessments
b) For all UST decommissioning (both removal and abandonment-in-place), samples shall be taken in native soil with the excavation for the removal or abandonment still open and prior to backfill and with the STSS still on site. In selecting sample types, sample locations and sample measurement methods, owners or operators shall also consider the nature of the stored substance, the type of initial alarm or cause for suspicion, if any, the method of tank removal or abandonment-in-place, the types of backfill, the depth of groundwater and other factors appropriate for identifying the presence and source of a release. Packaging for shipping or delivery should be done in a manner that will preserve the sample and prevent deterioration or dilution, as for example, putting samples in sealed containers in ice.
c) Within 45 days after receipt of lab results from a full site assessment pursuant to subsection (b), owners or operators must designate and submit to OSFM, on OSFM forms (titled "Site Assessment Results" form and available at https://www2.illinois.gov/sites/sfm/About/ Divisions/Petroleum-Chemical-Safety/Pages/Applications-and-Forms.aspx), a "contamination" or "no contamination" result indicating whether a release has occurred, along with associated lab results. This determination shall be based upon an evaluation of lab results to determine whether any contamination has been found. The determination must be certified by a Licensed Professional Engineer or Licensed Professional Geologist. Even if "no contamination" is being reported, the analytical report with tables and a site map showing sampling/boring locations shall be submitted to OSFM. In the event a suspected release was previously called into IEMA and is being confirmed by site assessment, the "contamination" or "no contamination" result on the Site Assessment Results form shall be provided to IEPA in addition to OSFM. |
