The San Francisco Bay Branch is pleased to present:
Innovative Approach to Enhanced Reductive Dechlorination
Lucas Budny, PG, CHG, Project Hydrogeologist
Wednesday, May 16th
The former Romic facility (Site) consists of approximately 12 acres of Bay front property in East Palo Alto, California. Historical site operations included storing, disposing, and recycling solvents and storage and management of hazardous solid waste materials from the 1950s to 2007. The hydrogeologic settings include three groundwater bearing zones (A, B and C Zones) that are Impacted with light non-aqueous phase liquids (LNAPL) and dense non-aqueous phase liquids (DNAPL) relating to historical site operations. The A Zone consists of brackish to saltwater that overlies the saltwater B Zone and a brackish C Zone. Historical remediation at the Site consisted of pump and treat and manual “hot spot” injections of a mixture of freshwater and substrate that showed favorable conditions for ERD. The current ongoing pilot study was designed to operate as a groundwater recirculation system consisting of vertical extraction wells and horizontal injection wells to deliver in “pulsed injections, “ a mixture of Site water and substrate in each water-bearing zones. An added benefit of the groundwater recirculation system is site hydraulic control, which essentially limits off-site CVOC migration. The A Zone pilot study was completed in October 2017 and the B Zone pilot study will be on going through May 2018 and shortly beginning the C Zone. A and B Zone pilot studies results demonstrated ERD was occurring. The A Zone pilot study showed that a soluble substrate with macronutrients, optimal pH and recirculation can result in complete and accelerated dechlorination even in the presence of significant LNAPL and elevated sulfate concentrations. The B Zone pilot study showed similar results as the A Zone, but the influence of the San Francisco Bay is potentially significant and will have to be accounted for in the full-system design.
Mr. Lucas Budny is a resourceful hydrogeologist with 15 years of experience in groundwater resources and environmental site characterization. He has provided innovative solutions for groundwater use, impairment and supply, and is experienced using groundwater hydraulics for designing and analyzing pumping tests and using innovative equipment and novel approaches for maximizing well performance. He is also knowledgeable on the application and maintenance of remediation systems such as enhanced reductive dechlorination, air sparge, soil vapor extraction and electrical resistance heating. He has provided environmental and groundwater services for such high profile clients as UC San Francisco, City and County of San Francisco, Los Angeles Department of Water and Power, U.S. Army Corps of Engineers, U.S. EPA and County of Alameda. Mr. Budny received his master’s degree in Geology from the University at Buffalo and his bachelor’s degree in Geology from Georgia Southwestern State University.
-$50 for Members
-$55 for Non-Members
-$10 for Student attendees
-Salmon Alla Bella
-Chicken Breast and Wild Mushroom Piccata
-Wild Mushroom or Roasted Vegetable Ravioli
ANNOUNCING SCHOLASTIC SPONSORSHIP OPPORTUNITIES - ALL PROCEEDS TO BENEFIT SCIENCE STUDENTS:
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If you have any announcements or questions, please contact the Branch Vice President, Bill DeBoer (firstname.lastname@example.org) at 925-212-1630, or Branch Treasurer David W. Abbott (email@example.com) at 510-928-4543.
We are actively looking for potential speakers. If you have a topic or suggestion, please contact the Branch Vice President, Bill DeBoer (firstname.lastname@example.org) at 925-212-1630.