Document: ACAT FOIA Repository 19, Date Received July 2023
Year: August 25, 2004
Pages: 4
Document Title: ERP-52 Site l 8 Gambell RIFS, Product Sampling
Agency/Organization:
US Army Corps of Engineers (Alaska), Zymax Forensics
Document Summary:
Fuel Sample test from Site-18, characterized as "artic diesel."
LINK TO THIS ARTICLE
https://www.apeoplesepa.org/modules/acat19SOURCE
ACAT/EDGI FOIA, July 2023
CITATION
For academic footnote/endnote styles:
Gretchen Gehrke, Pam Miller, Jessica Varner, and Vi Waghiyi, ACAT/EDGI FOIA Repository, Environmental Data & Governance Initiative, and Alaska Community Action on Toxics, 2024. https://www.apeoplesepa.org/home/acat-foia-repository
RELATED TAGS
RUG 25 2004 1:07PMp.2HP LASERJET 3200forensicsERP-52 Site l 8 Gambell RIFSProduct SamplingReport Prepared for:U.S. Army Corps of EngineersP.O. Box 6868Anchorage AK 99506Report Prepared By:Alan Jeffrey, PhD_ZymaX forensics 71 Zaca LnSan Luis ObispoCA 9340125 Auggst 2004200-1eF10AK069603_03.10_0007 _aNPDL WO# 04-080R~G25 2004 1:07PMp.3HP LRSERJET 3200TABLE OF CONTENTSINTRODUCTION3METHODOLOGY3PRODUCT CHARACTERIZATION4Site 18 Gambell RIFSPage2AUG 25 2004 1:07PM·p.4HP LASERJET 3200IntroductionOne sample labeled Site 18 was received at Zymax on 29 July, 2004 for petroleum fuelcharacterization. It was anticipated that free product would be present. However, Zymax wasunable to separate enough free product, and the sample was treated as a water sample, andanalyzed as TPH diesel by low resolution GC/MS.The complete laboratory data report is presented as an Appendix to this report.MethodologyTPH (Total Petroleum Hydrocarbons) as diesel by GCJMS CombinationWater samples are extracted with methylene chloride solvent and the solvent extractconcentrated. Soil samples .are sonicated with methylene chloride solvent and the solvent extractconcentrated.The extract is ~ected into a GC equipped with a 30 meter narrow bore DB5 capillary column toseparate the hydrocarbon, which are detected with a mass spectrometer (MS) interfaced to theGC. TPH concentrations are calculated by comparison with a standard diesel fuel.Site 18 Gambell RIFSPage3RUG 25 2004 1:07PMp.5HP LASERJET 3200Product CharacterizationThe sample contained 22 mg/L of TPH, the chromatogram of which is sbown below. Achromatogram of a #2 diesel standard is shown for comparison. The Site 18 extract has anarrower distribution with less of the higher boiling hydrocarbons. 1his is characteristic of a lightdiesel such as Arctic Diesel. The ratio ofnC 17/pristane (Pr) is around 2, which is similar to manyfresh diesels dispensed in tbe US. This indicates that the diesel in the Site 18 water haexperienced, at most, mild degradation from environmental exposure.Site 18 Gambell RIFSPage4