Part Coordinators

Jennifer CallesPart 3000 Metals, earned a Bachelor Degree in Chemistry from Scripps College in Claremont, California. She has more than 30 years of experience as a laboratory analyst and manager. She spent eight years in a commercial environmental laboratory setting performing and supervising analyses for water and wastewater samples. She came to the City of Phoenix as Laboratory Superintendent in 1995. Her laboratory provides analyses for water and wastewater quality including metals, microbiology, inorganic and organic constituents. Her background is primarily in environmental laboratory analysis and reporting.

Robin S. Parnell of Hampton Roads Sanitation District (HRSD) in Virginia Beach, VA is the new coordinator for Part 5000 Aggregate Organic Constituents. Currently, Robin is a Laboratory Manager overseeing the Biochemical Oxygen Demand (BOD) and Microbiology sections. She has experience with wastewater treatment analyses including BOD, Solids, Microbiology, Metals and Organic Chemistry. She is a project manager coordinating analytical work performed by HRSD for external customers. She also participates as a co-chair for a Virginia Laboratory Practices Technical Program Committee. Robin has a BS in Biology from the University of South Carolina and an MA in Biology from the College of William and Mary.

The PC for 7000 Radioactivity is Robert T. Shannon. He works as a technical consultant for government and private entities in the areas of radioanalytical chemistry and quality systems with Quality Radioanalytical Support, LLC in Denver, CO. Most recently, he has held positions as Site Subject Matter Expert for Radiobioassay and Radiochemistry and Deputy Manager of the B559 analytical laboratories at Rocky Flats Environmental Technology Site in Golden, CO. Previously he has worked with a number of commercial laboratories including positions as Director of Radiochemistry Programs with Acculabs, Inc. in Golden and as Radiochemistry Technical Manager with Paragon Analytics in Fort Collins, CO. Mr. Shannon has a B.A from Grinnell College in Iowa and has studied at the Albert-Ludwig-University School of Earth Studies in Freiburg, Germany and the Colorado School of Mines.

Devon Morgan, Laboratory Manager at Clark County Water Reclamation District in Las Vegas, Nevada, coordinates Part 2000 Physical and Aggregate Properties. Mr. Morgan is a laboratory manager with 30 years of laboratory experience, with 26 years in management. For the last 15 years, he has managed laboratories focusing on water and wastewater chemistry. He obtained his M.S. in Chemistry from Prairie View, A & M University, and a B.S. Suma cum laude in Agronomy. His professional credentials include: Operations Manager for Severn Trent Laboratories and Wet Chemistry Manager for Southern Petroleum Laboratory. His professional affiliations include: WEF Technical Committee member, WEF Laboratory Practice Committee Chair, and member of AWWA, ACS, and TNI.

Christina Baker, Laboratory Manager at Proctors Creek Wastewater Treatment Plant (WWTP), is the coordinator for Part 1000 Introduction. She currently supervises the wastewater analyses performed for Proctors Creek WWTP and Falling Creek WWTP. Christina has 11 years of experience conducting and/or supervising inorganic chemistry, physical chemistry, biological, and microbiological testing in both commercial and non-commercial environmental laboratory settings. Before working for Chesterfield County, Christina was a Virginia environmental Laboratory Certification Officer for 8 years. As a Laboratory Certification Officer, Christina spent a considerable portion of her time reviewing and interpreting EPA-approved analytical methods as well as regulatory requirements applicable to environmental laboratory analyses. She held a Class IV Wastewater Operator licence in Virginia from 2002 to 2006. Christina earned her B.S. in Biology and her M.S. in Environmental Studies at Virginia Commonwealth University.

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