| Tri-Service Procedural Guidelines for Ecological Risk Assessments. Volume 1 |
MAY 96 |
316 pages |
| Authors:
Randall S. Wentsel; Thomas W. La Point; Michael Simini; Ronald T. Checkai; David Ludwig; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
 | The purpose of this report is to provide guidance for conducting ERAs for use by risk assessors at Navy, Air Force, and Army installations. Each of the three services has a support center which is available to provide guidance and programatic services. The three members are: U.S. Army Environmental Center (AEC), Naval Facilities Engineering Service Center, and the Air Force Center for Environmental Excellence. Using this approach will provide the ... |
|
| Procedural Guidelines for Ecological Risk Assessments at U.S. Army Sites. Volume 1 |
DEC 94 |
114 pages |
| Authors:
Randall S. Wentsel; Thomas W. LaPoint; Michael Simini; Ronald T. Checkal; David Ludwig; GEO-CENTERS INC FORT WASHINGTON MD
|
| The purpose of this report is to provide guidance for procedures to conduct ecological risk assessment (ERA) for use by risk assessors under contract to the U.S. Army Environmental Center (AEC) at Army National Priority sites and sites listed under the Base Realignment and Closure program. The report is designed to enhance an understanding of the requirements under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Using this approach ... |
|
| Controlled Environment Soil-Core Microcosm Unit (CESMU) for Investigating Fate, Transport, and Transformation of Chemicals in Site-Specific Soils |
JUN 94 |
19 pages |
| Authors:
Ronald T. Checkai; Randall S. Wentsel; Carlton T. Phillips; Roy L. Yon; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| The controlled environment soil-core microcosm unit (CESMU) methods embody a collection of techniques that began with soil sampling in the field, and continued throughout laboratory investigations of chemical fate, migration, and transformation in site-specific soils. Intact soil cores were collected in the field using a hydraulically-controlled probe, delivering intact soil-cores with minimal disturbance directly into high density polyethylene pipe (HDPE; 10. 3-cm ID). The HDPE remained an integral part of ... |
|
| Simulant Selection and Environmental Assessment for Open-Air Testing |
MAR 94 |
51 pages |
| Authors:
Donald P. Duncan; George R. Famini; Randall S. Wentsel; Teresa M. Mann; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| Scientists and engineers involved in chemical defense assessment in material design often need to perform open-air testing with chemical agent simulants. Before using any simulant in outdoor tests, it is necessary to compile relevant data on the likely environmental consequence of using the chosen simulant in a particular configuration and identify that no expendable environmental impact is likely to occur. Simulant selection and environmental impact assessment are highly specialized areas ... |
|
| Toxicity Testing of Soil Samples from Joliet Army Ammunition Plant, Illinois |
FEB 94 |
74 pages |
| Authors:
Carlton T. Phillips; Ronald T. Checkai; Nancy A. Chester; Randall S. Wentsel; Michael A. Major; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| Environmental toxicity testing and soil chemical analyses were performed as part of an ecological risk assessment of the Joliet Army Ammunition Plant (JAAP), Joliet, IL. Test soils were collected from six sites at the plant (a load and pack area, two open burning areas, a lead azide area, a 2,4,6- trinitrotoluene (TNT) manufacturing site, and an evaporation bed). Control soil samples were collected from an adjacent area. Soil toxicity was ... |
|
| Environmental Studies on Open Burn/Open Detonation Disposal Sites |
DEC 93 |
238 pages |
| Authors:
Randall S. Wentsel; Ronald T. Checkai; Michael A. Major; Raphael O. Nwanguma; John C. Amos; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| This report describes soil column experiments (task 1) used to study fate and transport of OB/OD residues within the upper 1 m of soil. Terrestrial (task 2) and aqueous (task 3) toxicity studies are reported elsewhere. Intact soil-cores were collected from Anniston Army Depot (AAD). Intact soil-cores were also collected from Radford Army Ammunition Plant (RAAP), Milan Army Ammunition Plant (MAAP), and Pueblo Army Depot (PAD); results of these three ... |
|
| Toxicity of Selected Munitions and Munition-Contaminated Soil on the Earthworm (Eisenia foetida) |
APR 93 |
22 pages |
| Authors:
Carlton T. Phillips; Ronald T. Checkai; Randall S. Wentsel; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| The munitions HMX (cyclotetramethylenetetranitramine), RDX (cyclotrimythylenetrinitramine), and TNT (trinitrotoluene) and soils from two Army ammunition plants (Radford, VA and Milan, TN), both contaminated with munitions or munition residues, were tested for their toxicity to the earthworm (Eisenia foetida). HMX and RDX were tested at 0, 50, 100, 200, 400, and 500 ug/g concentrations by weight in an artificial soil mixture. TNT was tested at 0, 80, 110, 140, 170, and ... |
|
| Toxicity of Modified HL Simulant and Methyl Salicylate in Soil on Cucumbers and Earthworms |
APR 93 |
34 pages |
| Authors:
Carlton T. Phillips; Randall S. Wentsel; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| Tests were conducted to determine if methyl salicylate (MS), a component of HL simulant, was responsible for the toxicity exhibited by cucumbers and earthworms. The HL simulant without methyl salicylate (HLMS) and MS were tested for their toxicity to cucumbers and earthworms. The HLMS was tested at 0, 1,000, 5,000, 1 0,000, and 25,000 mg/kg by weight; MS was tested at 0, 50, 100, 200, 350, and 500 mg/kg by ... |
|
| Toxicity of Persistent Chemical Agents Simulants (PCAS) and Chemical Agent Disclosure Solution (CADS) in Soil on Cucumber (Cucumis sativus, L.) and Earthworms (Eisenia foetida) |
MAR 91 |
33 pages |
| Authors:
Carlon T. Phillips; Randall S. Wentsel; Ronald T. Checkai; CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| Persistent chemical agent simulants (PCAS) of GD and HL and the chemical agent disclosure solution (CADS) were tested for their toxicity to cucumbers and earthworms. The PCAS and CADS were tested at 0,0.10, 0.50, 1.0, and 2.5% concentration by weight. The GD simulant produced lethal and sublethal effects on cucumber plants at the 1.0% level. The HL simulant in soil on cucumbers was lethal above the 0.10% concentration. The CADS ... |
|
| The Effects of Graphite Flakes in Soil on Terrestrial Plants |
SEP 90 |
|
| Authors:
Carlton T. Phillips; Randall S. Wentsel; CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
 | Graphite flakes were tested for their toxicity to corn and cucumber. The flakes were tested at 0 (control), 0.05, 0.10, 0.50% concentration by weight. No lethal or sublethal effects on corn plants were produced. The two-way analysis of variance (ANOVA) for plant heights showed no significant (p < 0.05) difference between control plants and those grown at other concentrations. The ANOVA showed no significant (p < 0.05) difference in the ... |
|
| Toxicity of Graphite Flakes in Soil to Earthworms |
JUN 90 |
14 pages |
| Authors:
Lester K. Bowser; Carlton T. Phillips; Randall S. Wentsel; CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD
|
| Graphite flakes, a potential candidate for use in various military hardware and equipment, were tested for their toxicity to the earthworm (Eisenia foetida). The graphite flakes were tested at 0% (control), 0.05%, 0.10%, 0.50%, and 1.00% concentrations by weight. These concentrations were used in the study by thoroughly incorporating the graphite flakes into an artificial soil mixture composed of sphagnum peat (10%), kaolinite clay (20%), fine sand (69%), and calcium ... |
|
| Engineering and Development Support of General Decon Technology for the U.S. Army's Installation Restoration Program. Task 2. Literature Review on Treatment of Contaminated Lagoon Sediment |
APR 1982 |
191 pages |
| Authors:
Randall S. Wentsel; Suzette Sommerer; Judith F. Kitchens; ATLANTIC RESEARCH CORP ALEXANDRIA VA
|
| This report presents a technical and economic evaluation of 8 processes for removal of high concentrations of explosives from contaminated lagoon sediments. The processes evaluated were wet-air oxidation, incineration, molten salts incineration, microwave plasma, high energy electrons, gamma radiation, UV-ozone, UV-peroxide, and chemical degradation. Each process was evaluated for its technical effectiveness, costs, mobility, advantages and disadvantages in application to lagoon decontamination and ability to meet air and water quality ... |
|
| Engineering and Development Support of General Decon Technology for the DARCOM Installation Restoration Program. Task 9. Lagoon Sediment Analysis |
AUG 81 |
|
| Authors:
Randall S. Wentsel; Antoine R. Ennis; Judith F. Kitchens; ATLANTIC RESEARCH CORP ALEXANDRIA VA
|
| The purpose of this task is to analytically determine the trinitrotoluene, dinitrotoleune and cyclotrimethylene trinitramine content of lagoon sediment from four Installations. To assess any safety problems in the treatment of explosive contaminated sediment, lagoon sediment samples were collected from four Army installations. Atlantic Research Corporation analyzed the sediments for percent moisture, TNT, RDX, 2,4-DNT and 2,6-DNT. The sediment samples were then sent to the Large Caliber Weapon Systems Laboratory ... |
|
| Engineering and Development Support of General Decon Technology for the DARCOM Installation Restoration Program. Task 2. Treatment of Explosives Contaminated Lagoon Sediment. Phase I. Literature Review and Evaluation |
NOV 80 |
92 pages |
| Authors:
Randall S. Wentsel; Suzette Sommerer; Judith F. Kitchens; ATLANTIC RESEARCH CORP ALEXANDRIA VA
|
| This report presents a technical and economic evaluation of 8 processes for removal of high concentrations of explosives from contaminated lagoon sediments. The processes evaluated were set air oxidation, incineration, molten salts incineration, microwave plasma, high energy electrons, gamma radiation, UV ozone, UV peroxide, and chemical degradation. Each process was evaluated for its technical effectiveness, costs, mobility, advantages and disadvantages in application to lagoon decontamination and ability to meet air ... |
|
Reports by Author
