Leaking Underground Storage Tanks

 

Leaking underground storage tanks (USTs) are a significant source of environmental contamination and may pose the following threats to human health and safety: fire and explosion; inhalation of dangerous vapors; contamination of soil and groundwater; contamination of drinking water; and contamination of streams, rivers, and lakes. These threats are minimized when responsible parties respond quickly and efficiently after a tank release. For more information, see An Introduction to Leaking Underground Storage Tanks.

 

The Leaking UST Section oversees the remedial activities after a release from an UST has been reported to the Illinois Emergency Management Agency. Leaking UST Section staff review the technical adequacy of plans, reports, and budgets. This includes the development and evaluation of the appropriate remediation objectives for each site. Once the site has met its remediation objectives and program requirements, the Illinois EPA issues a No Further Remediation Letter for the leaking UST incident.

 

The manager of the Leaking UST Section is Greg Dunn. 

 

What's New...

  • The Illinois EPA has reviewed the “Petroleum Vapor Intrusion Assessment for Leaking UST Program Sites” under the Tiered Approach to Corrective Action Objectives Fact Sheets on the Illinois EPA’s website.  This flowchart is located at https://www2.illinois.gov/epa/Documents/epa.state.il.us/land/taco/lust-flowchart.pdf and is used to determine if further investigation of the indoor inhalation (vapor intrusion) exposure route is required at a petroleum UST site.  The criteria evaluated include the use of five feet of clean soil between dissolved phase groundwater contamination and the receptor,  fifteen feet of clean soil between Csat soil and the receptor, or fifteen feet of clean soil between free product in a groundwater monitoring well and the receptor.  These criteria are used to screen out the indoor inhalation exposure route, however the use of these criteria should require an institutional control in the No Further Remediation Letter.  Without the institutional control in the No Further Remediation Letter, an owner/operator of a petroleum UST site could change the distance between the dissolved phase groundwater contamination, Csat soil, or free product and the receptor.  This change in the distance could require the indoor inhalation (vapor intrusion) exposure route to be re-evaluated.  Therefore, as of March 1, 2019, when five feet or fifteen feet of soil is used to screen out the indoor inhalation exposure route, an institutional control will be placed in the No Further Remediation Letter stating the five feet or fifteen feet of clean soil must remain.  The following are examples of the paragraphs to be added to the No Further Remediation Letter if one of the above applies:  
    • No soil or groundwater contamination exceeding the most stringent Tier 1 remediation objectives shall be present within five (5) feet of an existing or potential building or man-made pathway.
    • Fifteen feet of clean soil meeting the most stringent Tier 1 remediation objectives must be maintained as an engineered barrier between Csat soil or free product in a groundwater monitoring well and overlying receptors (building or man-made pathway) to prevent the indoor inhalation exposure route from becoming an exposure route of concern, as shown on the attached site map.
  • The Bureau of Land has created a new avenue for disseminating information about changes in the Leaking UST Program. To be included when program changes warrant notification, please fill out and submit the Leaking UST Program Contact Information Form.
  • Illinois EPA is actively processing payment of claims for work completed under the Illinois Leaking Underground Storage Tank Program. Currently, Illinois EPA is not able to update the Payment Priority List. However, to view the status of your claim, please visit the Office of the Comptroller at https://illinoiscomptroller.gov/vendors/ and follow the directions on the screen. Please note, you will need the Vendor TIN (FEIN or Social Security Number) and name of the Vendor to complete the request. If you have additional questions, after reviewing the status on the Comptroller’s website, please feel free to contact our fiscal office at 217-782-3250.
 
  • In accordance with 35 Ill. Adm. Code 734.605(b), a complete application for payment must include an affidavit signed by each subcontractor that performed an activity for which costs are sought for payment from the UST Fund. The completed affidavit must be signed by an authorized agent of the subcontractor, subscribed and sworn before a notary public. The affidavit is included in the application for payment forms.
  • In accordance with 35 Ill. Adm. Code 734.605(b), a complete application for payment must include a quarterly report of workforce participation.  

 

Illinois Environmental Protection Agency
Leaking Underground Storage Tank Section
1021 North Grand Avenue East                                    
P.O. Box 19276                                    
Springfield, Illinois 62794-9276                                    
Phone: 217-524-3300                                    
Fax # 217-782-9308