Conference Agenda & Scheduling

HAZMAT CLEANUP FOR DUMMIES M-F1

Monday 8am to 10am

Room	GOLD KEY I/II
Seating	103 of 108 seats available
Credits	REHS: 2.0
Speakers	JUSTIN LEE
Objective	Identify, approach and clean hazardous waste spills
Description	Students will learn to identify hazardous waste (using labels, generator knowledge, and laboratory analysis). They will learn how to safely approach hazardous waste (using Niosh & Wiser phone applications). How to clean hazardous waste spills, (when they can do cleanup in-house versus contracting a cleanup company). Class will also touch upon proper documentation and homeless encampment hazards.

DTSC REGULATORY UPDATE M-F3

Monday 3pm to 4pm

Room	GOLD KEY I/II
Seating	100 of 108 seats available
Credits	REHS: 1.0
Speakers	Cheryl Prowell, Maryam Tasnif-abbasi
Objective	Participants will learn about organizational changes within DTSC and new procedures and guidance for the cleanup process
Description	DTSC Office of Brownfields and Site Mitigation will provide updates that will help the regulated community navigate our process and will help Local Agency staff stay consistent with DTSC. We will cover changes to our organization, updates to EnviroStor, trends and trouble spots in case management, and vapor intrusion updates

WHAT'S NEW ABOUT VAPOR INTRUSION FROM THE CALEPA WORKGROUP TU-F1

Tuesday 8am to 9:30am

Room	GOLD KEY I/II
Seating	106 of 108 seats available
Credits	REHS: 1.5
Speakers	Cheryl Prowell
Objective	To understand and comprehend the current changes in vapor intrusion science and regulatory approaches.
Description	The CalEPA Vapor Intrusion Workgroup will provide an update on implementation of the Supplemental Vapor Intrusion Guidance. We will focus on lessons learned screening projects, using multiple lines of evidence to create site specific approaches, and current perspectives on cleanup strategies, mitigation, and long term monitoring. The team will also provide an update on the new J&E model and efforts to gather VI data in GeoTracker and EnviroStor.

ADDRESSING PROBLEMATIC VOCS IN VI EVALUATIONS AND MITIGATION TU-F2

Tuesday 10am to 11:30am

Room	GOLD KEY I/II
Seating	106 of 108 seats available
Credits	REHS: 1.5
Speakers	Gina Plantz, Bart Eklund, Catherine Regan
Objective	This session summarizes lessons learned over the last 20 years in evaluating potential VI of problematic VOCs.
Description	The primary risk drivers in vapor intrusion (VI) studies almost always are tetrachloroethylene (PCE), trichloroethylene (TCE), benzene, or some fraction of total petroleum hydrocarbons (TPH). Nonetheless, decisions about further testing or mitigation may be driven by exceedances of screening levels of numerous other volatile organic compounds (VOCs). VI guidance in California includes screening levels for over 150 compounds. These extended lists of screening levels include various compounds that have proven to be problematic in past VI investigations due to their detection in shallow soil vapor and/or indoor air at sites where they are not undergoing vapor intrusion. Some compounds of particular interest are: 1,3-butadiene, acrolein, carbon tetrachloride, chloroform, 1,4-dichlorobenzene, and vinyl chloride. This session summarizes lessons learned over the last 20 years in evaluating potential VI of these problematic compounds. The fate & transport of these compounds has been investigated and they (almost) always have been found to not pose a VI risk at a given site. The lessons learned vary from compound to compound. Some compounds (e.g., 1,3-butadiene) have a very short half-life and therefore would not be expected to survive in soil gas long enough to pose a VI risk. Some compounds (e.g., acrolein) have been demonstrated to be false positives in evacuated, stainless-steel canisters. Carbon tetrachloride is found in outdoor air at or above screening levels, and infiltration of outdoor air into buildings results in potential exceedances indoors. Chloroform is a trihalomethane and typically is introduced into buildings via chlorinated municipal water supplies. 1,4-dichlorobenzene is a carcinogen found at concentrations above conservative screening levels in industrial and public buildings due to its use in cleaning products such as urinal cakes. Vinyl chloride is readily biodegraded in the presence of oxygen, so while it may be present at depth at a given site, it generally is absent in shallow soil gas. . Additionally, this session will present considerations for developing VI mitigation system operation, maintenance and monitoring programs. The same problematic VOCs summarized above can be challenges in evaluating the effectiveness of VI mitigation systems. The VI mitigation system should be operated with your site conceptual model in mind, not only when it is chosen, designed and installed but also when it is operated over the short and long term. For example, soil vapor probes may be kept in place and sampled if decreased concentrations of the vapor plume may trigger an evaluation to shut down the system. This session will also discuss other data to evaluate system performance like vacuum, flow and differential pressure may be collected on a quarterly, semi-annual or annual basis depending on site specific objectives.

HIGH-FREQUENCY MONITORING FOR RAPID ANSWERS TO KEY VI QUESTIONS TU-F3

Tuesday 1pm to 2pm

Room	GOLD KEY I/II
Seating	106 of 108 seats available
Credits	REHS: 1.0
Speakers	Mark Kram
Objective	Attendees will learn how automated continuous monitoring of chemical and physical data is used to rapidly answer key vapor intrusion questions.
Description	Is there an exposure exceedance? Is this due to an indoor source or VI? Where are indoor sources and vapor entry pathways located? What can be done to mitigate risk, and did the remedy work? What is the building-specific attenuation factor? Is the vapor recovery system keeping occupants safe during thermal remediation? These critical questions are answered in a single deployment using automated real-time monitoring and web posting of results.

PFAS REGULATORY UPDATE: ENFORCEMENT AND COMPLIANCE REQUIREMENTS TU-F4

Tuesday 3pm to 4pm

Room	GOLD KEY I/II
Seating	104 of 108 seats available
Credits	REHS: 1.0
Speakers	John Goetze
Objective	Attendees will learn about emerging PFAS regulations and policies from EPA and CA that impact water, soil, air, waste, and related requirements.
Description	This will focus on regulatory changes in the past year but also give the basics of PFAS rules from California and EPA. Discussion will include lessons learned and best practices from recent compliance projects. The impacts of EPAs enforcement policy for PFAS listing in CERCLA will also be summarized. Focus will also be given to the tools available for site investigative strategies to prepare for enhanced public and regulatory scrutiny.

STATISTICAL ANALYSIS OF ENVIRONMENTAL DATA W-F1

Wednesday 8am to 10am

Room	GOLD KEY I/II
Seating	107 of 108 seats available
Credits	REHS: 2.0
Speakers	Carl Palladino
Objective	This session will provide participants with a basic understanding of the statistical treatment of environmental data.
Description	This course covers common data distribution models, graphical tools for determining outliers and multiple data populations, calculating UCLs, UPLs, and BTVs, hypothesis testing and reducing decision errors. A primer on how to use EPA's statistical software, ProUCL, will be presented. Statistics can be fun and cool--come find out!

HOW MIGHT A CLEANUP PAY FOR ITSELF & WHAT IS A BACKSTOP LIKE? W-F2

Wednesday 10am to 11:30am

Room	GOLD KEY I/II
Seating	103 of 108 seats available
Credits	REHS: 1.5
Speakers	David Von Aspern
Objective	ENCOURAGEMENT OF REGULATORS IN A POST-LTCP ENVIRONMENT IN ASSISTING REDEVELOPMENT PROPONENTS; AND DESCRIBE COLLEGIAL EFFORTS AMONG COMPETING PARTIES
Description	1 of 2: A 32-acre redevelopment project within an otherwise built-out area minutes from Sacramentos downtown core had a 90-year continuous industrial use as a lumber sawmill, storage, and drying facility, and wooden box and interior moldings plant. All these historical uses remained in the same family ownership the whole time! In-depth site history interviews were crucial to developing a sound conceptual site model (CSM). The large overall land area was divided into five Option Parcels. Over the approximate 90 years the facility operated, its footprint expanded southward from prominent downtown Sacramento thoroughfare, Broadway. The oldest portions of the former facility had frontage along Broadway; the newest and least utilized portion of the original property was at its southern end. Thus, redevelopment commenced at the southernmost property extent, where the least potential existed for hazardous materials impairment. The CSM included an overall soil and groundwater assessment and human health-based risk assessment under an unrestricted future land use. Then, each Option Parcel was further studied and mitigated as warranted. As each Option Parcel was deemed suitable for redevelopment, it was sold and the proceeds of the first sale helped pay for the remediation of the next Option Parcel. The resulting overall project was built-out as The Mill at Broadway. In an era of on-going housing demand, every residential product sold like hot cakes. 2 of 2: David will share some insights into what a post-LTCP redevelopment "backstop" looks like by presenting color photos collected in recent years from actual projects. As shared during quarterly Roundtable meetings hosted by SWRCB, David observed a number of regulatory agencies perhaps feeling a little anxiety over cost recovery, clear line of authority in a post-closure setting and potentially working with a new entity which was not party to escrow when the redevelopment site was previously studied and its case-closed.

CONTAMINATED GROUNDWATER REMEDIATION DESIGN W-F3

Wednesday 1pm to 2pm

Room	GOLD KEY I/II
Seating	105 of 108 seats available
Credits	REHS: 1.0
Speakers	Lowell Kessel
Objective	Learn to evaluate groundwater remediation methods by understanding the limiting geologic and hydrogeologic conditions and methodology limitations
Description	This course is a comprehensive overview of the fate and transport mechanics of contaminants in groundwater zones and the limitations that challenge traditional remediation methods resulting in failed technologies, repeated attempts, loss of time and resources, and extended time frames of environmental impacts. You will learn how to overcome site limitations with modern methods of injection to achieve accelerated regulatory compliance timeframes

GEOTRACKER'S TANK CLOSURE PORTAL 101 W-F4

Wednesday 3pm to 5pm

Room	GOLD KEY I/II
Seating	104 of 108 seats available
Credits	REHS: 2.0
Speakers	Dayna Cordano
Objective	This session will introduce CUPAs and Cleanup Agencies to the new GeoTracker Tank Pull Portal.
Description	The State Water Board's new GeoTracker Tank Pull Portal was developed to streamline the UST removal reporting requirements outlined in Chapter 16 of the CCRs. This course includes an overview of GeoTracker's new Tank Pull Portal, including a comprehensive look at both the CUPA and Cleanup Oversight Agency tools. The course will outline the improvements to the reporting requirements and will provide a live demonstration of the Portal.

PFAS TREATMENT WITH ERADIFLUOR, A NON-THERMAL DESTRUCTION PROCESS TH-F1

Thursday 8am to 9am

Room	GOLD KEY I/II
Seating	103 of 108 seats available
Credits	REHS: 1.0
Speakers	John Xiong
Objective	This session will present an innovative remediation technology that destroys PFAS, which is often referred to as "forever chemicals".
Description	Often refered to as "forever chemicals," per- and poly-fluoroalkyl substances (PFAS) are a group of several thousand man-made, fluorinated organic chemicals that have been detected in groundwater, soil, and drinking water. An innovative technology (EradiFluor) has been developed to destroy PFAS by hydrated electrons produced in a UV/sulfite system. Both laboratory and field tests demonstrate close to 100% destruction of various PFAS classes.

EMERGING CONTAMINANTS TH-F2

Thursday 10am to 11:30am

Room	GOLD KEY I/II
Seating	96 of 108 seats available
Credits	REHS: 1.5
Speakers	Cheryl Prowell, Tamarin Austin
Objective	Gain knowledge and comprehension of new emerging contaminants, risks posed, and regulatory strategies to address them
Description	This panel discussion looks beyond PFAS at some other emerging contaminants, the risks they pose, and legal and regulatory developments to address them. Ethylene oxide, microplastics, 6PPD, endocrine disruptors, and more!

EPA OFFICE OF EMERGENCY MANAGEMENT TECHNICAL ALERT ON OVERFILLS TH-F3

Thursday 1pm to 3pm

Room	GOLD KEY I/II
Seating	106 of 108 seats available
Credits	REHS: 2.0
Speakers	Mark Howard
Objective	Provide an overview of the EPA Overfill Alert
Description	The U.S.EPA SPCC SME will provide an overview of a recently developed Technical Alert. EPA issued this Technical Alert as part of its ongoing effort to protect human health and the environment. The alert describes the regulatory requirements and industry codes, standards, recommended practices, and/or guidelines that address adequately designed, implemented, maintained overfill prevention systems and other oil discharge prevention measures.