Technical Guidance Manual for UST Closure & Release Response
The UST TGM 2000, 2nd Edition has been replaced by the DOH HEER TGM and guidance. However, the sections on UST removals and monitoring well installations are useful. Guidance contained in the UST TGM on soil sampling, groundwater sampling and other procedures are outdated and have been replaced with the DOH HEER TGM and guidance.
from the DOH UST website:
New! September 23, 2019 – DOH SHWB and DOH UST Section have adopted the DOH HEER guidance for UST release response with this policy memo: “Use of HEER Office Environmental Action Level Guidance and HEER Office Technical Guidance Manual for Characterization and Remediation of Contaminated Properties Overseen by the SHWB“.
Please follow the applicable guidance in the DOH HEER TGM, DOH HEER EAL guidance, and other guidance documents on the DOH HEER website applicable to UST release response including Multi-Increment (MI) soil sampling, monitoring well installation, Low Flow groundwater sampling, soil vapor (SV) sampling, use of appropriate EALs, and preparation of the Environmental Hazard Evaluation (EHE), and Environmental Hazard Management Plan (EHMP) for UST release response.
Five decision units (DUs) are requested for multi-increment soil sampling of UST excavations for USTs 6,000 gallons or larger. For USTs less than 6,000 gallons, the four walls and floor may be combined into one DU and MIS soil sample to be sent to the lab. Additional DUs are requested for pipe runs and beneath fuel dispensers. For piping runs less than 90 feet, one DU is recommended with additional DUs for additional lengths of 90 feet or less. Dispensers should have their own DUs.
On neighbor islands, consultants may use alternative methods described in Section 5.6 of the HEER TGM to avoid the use of methanol for analyses of volatile organic compounds (VOCs) in soil samples. These include: freezing of samples in collectors and extraction into methanol at the laboratory, or soil vapor (SV) site assessment. Two SV samples collected at depths of mid to bottom of the UST depth, up to 8 feet lateral from the excavation by drill rig. SV samples within the pea gravel of the UST excavation by SV probe or sampling of existing recovery wells slotted within the pea gravel may also be used. These methods are not described specifically in the DOH HEER TGM but the sample trains for sub-slab SV intrusion should be used.
See Table 9-5 in DOH HEER TGM for required petroleum constituent analyses by fuel type. Unknown USTs need TPH-g, TPH-d, TPH-o and sub-analytes on Table 9-5.*
Formats for the UST Initial Release Response report and Quarterly Release Response reports may follow the format of Site Investigation reports in DOH HEER TGM 18.5.9.
* For gasoline and diesel UST releases – DOH UST and DOH HEER request that TPH-d be added to TPH-g and gasoline sub-analytes in HEER TGM Table 9-5 for all groundwater analyses of gasoline UST releases, and that TPH-g be added to TPH-d and middle distillate sub-analytes for all groundwater analyses of middle distillate (diesel, jet fuel) UST release sites. This is for groundwater analyses only. The purpose is to monitor changes in petroleum hydrocarbon chain length as a result of bio-degradation and physical degradation in the sub-surface. [Dec 18, 2018]
If you have any questions or comments, please contact DOH UST Release Response Section at 808-586-4226 or email.
|Table of Contents
|Section 1: Introduction
|Section 2: Reporting, Recordkeeping and Permitting Requirements
|Appendix 2-A: Format for Work Plan
|Section 3: UST Closure and Change in Service
|Appendix 3-B: Checklist for UST Closure
|Appendix 3-C: Intent to Close and Change in Service Forms
|Appendix 3-D: Notification for UST Form
|Appendix 3-E: Format for UST Closure Report
|Section 4: Spills, Overfills, and Suspected Releases
|Appendix 4-A: Volumetric Tank Tightness Testing Results Form
|Section 5: Release Response
|Appendix 5-B: Confirmed Release Notification Form
|Appendix 5-C: Format for Initial Release Response Report
|Appendix 5-D: Fact Sheet and Notification of Public Sample Letters
|Appendix 5-E: Format for a Quarterly Release Response Report
|Appendix 5-F: Format for Corrective Action Plan
|Appendix 5-H: Format for Risk Assessment Report
|Appendix 5-I: Format for Exposure Pathway Assessment Report
|Appendix 5-J: Format for an Exposure Prevention Management Plan
|Appendix 5-K: NFA Checklist for Final Release Response Reports
|Section 6: Waste Management
|Section 7: Sampling and Analysis
|Appendix 7-A: Data Quality Objectives
|Appendix 7-B: Suggested Outline of a QA Project Plan
|Appendix 7-C: Suggested Outline of a Field Sampling Plan
|Appendix 7-D: Recommended Sample Control Procedures
|Appendix 7-E: Recommended Sampling and Analysis Procedures
|Appendix 7-F: Field Analytical Methods
|Section 8: Health and Safety Considerations
|Appendix 8-A: OSHA, LUST and Remediation
|Appendix 8-B: Format for Site Health and Safety Plans
|Section 9: Technical Resources
Solid and Hazardous Waste Branch
Hawai’i Department of Health
919 Ala Moana Boulevard #212
Honolulu, Hawai’i 96814
Phone: (808) 586-4226
Fax: (808) 586-7509