The HEER Office Webinar Series was launched in 2015 to provide training to State, County, and Federal agencies, along with the environmental consulting community, to develop a shared understanding of the latest scientific, technical, and policy development affecting cleanups in Hawaiʻi.
Watch our complete set of webinars below – clicking on the playlist icon on the top right corner to browse through our collection. Alternatively, visit the HEER Webinar Series on YouTube.
If you would like to go to a specific topic, please browse our list of webinars below.
Click on the Play icon and then on “YouTube” to watch on YouTube and use Time Tags to skip to specific topics within each webinar (under “Show More”).
If you would like to be included in future webinar and HEER Office guidance update notifications, contact Roger Brewer of the HEER Office ([email protected]). We keep emails at a minimum and will not pass your address on to outside parties.
- Untangling the PFASs Web (Roger Brewer, October 20, 2020)
- Fake Data? Sampling Theory and Environmental Investigations (RBrewer; July 16, 2019)
- DU-MIS Overview and Risk-based Site Characterization (RBrewer; February 20, 2019)
- DU-MIS for Sediments (RBrewer; September 20, 2018)
- DU-MIS for PCBs (RBrewer; August 30, 2018)
- TPH Risk Case Studies (RBrewer; August 2018)
- UXO Training Workshop-Introduction to the Military Munitions Response Program (JSwanson March 2018)
- Use of ESLs and DU-MIS to Expedite Site Investigation and Remediation (RBrewer; December 2017)
- EHE Webinar (RBrewer; November 21, 2017)
- TPH Forensics Workshop (IRhodes November 13, 2017)
- Multi-Increment Samples – Laboratory Processing (DAnderson, November 15, 2017)
- LNAPL Conceptual Site Models (GBeckett; October 2017)
- Tapwater Screening Levels for TPH-Related Metabolites (RBrewer; September 2017)
- Discrete Soil Sample Reliability (RBrewer; August 2017)
- HEER DU-MIS and EHE Training Webinar Series (JPeard, RBrewer and DAnderson; 2017)
- Large Volume Purge Subslab Vapor Sampling Methods (RBrewer; June 2017)
- Role of Heterogeneity in Vapor Intrusion (RBrewer; August 2016)
- Petroleum Vapor Intrusion Facts and Fallacies (RBrewer; May 2016)
- Discrete Soil Sample Reliability (RBrewer; May 2016)
- Field Study of Discrete Soil Sample Variability and Reliability (RBrewer; October 2015)
- Part 1: Results
- Part 2: Implications
- Discrete vs. Incremental Samples Explained Using Salad (RBrewer; September 3, 2015)
- Petroleum Vapor Intrusion: Facts, Fallacies, and Implications (RBrewer; July 27, 2015)
- Recent Developments in Groundwater Bioremediation and Vapor Mitigation Technologies (SNiegro, KSmith; May 11, 2015)
- Long-Term Management of Contaminated Soil and Groundwater: Iwilei District, Honolulu (RBrewer; SMow, JNakayama; April 15, 2015)
- Dungeons, Dragons, Pica Houses, and the Need for Alternative, Vapor Intrusion Screening Tools (RBrewer; February 18, 2015)
- Use of Active and Passive Soil Gas Samples to Support Vapor Intrusion Investigations (RBrewer; March 11, 2015)
- Behavior of LNAPL and Subsurface Oil Plumes (PHughs; April 2013)
Untangling the PFASs Web (Roger Brewer, October 20, 2020)
This presentation by Roger Brewer of the HEER Office discusses the development of draft (July 2020) environmental action levels for PFAS-contaminated soil and groundwater and lessons learned for pending updates to the guidance (anticipated November 2020).
FAKE DATA? SAMPLING THEORY AND ENVIRONMENTAL INVESTIGATIONS (July 16, 2019)
Read more & download presentation
This webinar, presented by Roger Brewer of the HEER Office to the State Risk Assessors Association, describes how “highly variable” environmental sample data are tied in part the misapplication of “discrete” sampling methods for “finite element media,” such as a group of people or cans of tuna fish, to testing of “infinite element media” such as soil, water and air. Such data can cause significant uncertainty in estimates of risk posed by contaminated media as well as uncertainty in the design and adequacy of remedial actions. The webinar introduces sampling approaches based on Gy’s sampling theory for infinite element media and uses examples for air, soil vapor, soil and sediment to demonstrate how the inherent, heterogeneous nature of contaminants in the environment can be controlled and more reliable data collected to assess risk and determine appropriate actions.