EPA Mead NE History & Sampling Plan Presentation Discussion
EPA Mead NE History & Sampling Plan Presentation Discussion EPA Mead NE History & Sampling Plan Presentation Discussion 1. From EPA Mead NE History and Sampling plan presentation: Briefly describe the environmental remediation site. Describe the removal actions as well. You may have to do additional research.EPA Mead NE History & Sampling Plan Presentation Discussion 2. From EPA Mead NE History and Sampling plan presentation: Discuss the project Data Quality Objectives (DQOs). Summarize the planning steps and identify indicator compounds and Targeted Compounds. week_6.pptx EPA Superfund Program: NEBRASKA ORDNANCE PLANT (FORMER), MEAD, NE EPA Mead NE History and Sampling Plan SAFE 4450 Environmental Remediation Course material developed by Dr. Georgi Popov, QEP Case Study The 17,000-acre Nebraska Ordnance Plant (NOP) near Mead, Nebraska, operated as a munitions productions plant from 1942 to 1956. Later uses of the area included munitions storage, ammonium nitrate production, and agricultural research and development. Disposal of radioactive wastes, solid wastes and other chemicals at the site led to contamination of groundwater with volatile organic compounds (VOCs) and explosives. The University of Nebraska currently owns and operates its Agricultural Research and Development Center (ARDC) on the Former NOP property. Operation and maintenance activities and monitoring of the ongoing remedial action are continuing. Source: https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0702031 Location of Former NOP SITE HISTORY Nebraska Ordnance Plan Operations and Decommissioning During World War II, bombs, shells, and boosters were loaded, assembled, and packed at the former NOP site. Ordnance production was temporarily terminated in 1945 and the facility was placed on standby; decontamination and shutdown procedures were initiated. Between 1945 and 1949, the buildings were decontaminated and used primarily for storage and disposal of bulk explosives and munitions. In 1950, the plant was temporarily reactivated and produced an assortment of weapons for use in the Korean Conflict. The plant was again placed on standby status in 1956. In 1959, the former NOP site was transferred to the General Services Administration for disposition. Approximately 1,000 acres were retained by the Army for National Guard and Army Reserve training, 12 acres were retained by the Army for use as a Nike Missile Maintenance Area, 2,000 acres were transferred to the U.S. Air Force to build the Offutt Air Force Base Atlas Missile Area, and 40 acres were transferred to the Department of Commerce Case Study Nebraska Ordnance Plant (NOP) near Mead, Nebraska The site was listed on the National Priorities List on August 30, 1990. In September 1991, the U.S. Army Corps of Engineers (USACE), EPA, and the Nebraska Department of Environmental Quality (NDEQ) entered into a Federal Facilities Agreement (FFA) that prescribes the Armys role for cleaning up the site, and roles for EPA and NDEQ in overseeing the cleanup. Source: https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=070 2031 A look back at the former Nebraska Ordnance Plant that was located near Mead Source: http://fremonttribune.com/news/local/nebraska-ordnanceplant/collection_208d4264-e85e-5124-839c-e37addc192c9.html#3 A look back at the former Nebraska Ordnance Plant that was located near Mead Source: http://fremonttribune.com/news/local/nebraska-ordnanceplant/collection_208d4264-e85e-5124-839c-e37addc192c9.html#3 A look back at the former Nebraska Ordnance Plant that was located near Mead Source: http://fremonttribune.com/news/local/nebraska-ordnanceplant/collection_208d4264-e85e-5124-839c-e37addc192c9.html#3 A look back at the former Nebraska Ordnance Plant that was located near Mead Source: http://fremonttribune.com/news/local/nebraska-ordnanceplant/collection_208d4264-e85e-5124-839c-e37addc192c9.html#3 PREVIOUS INVESTIGATIONS AND RESPONSE ACTIONS Due to the size and complexity of the former NOP site, as with many Superfund sites, the site was organized into OUs. The focus of this ROD is OU3 which, as noted previously, includes a former on-site landfill and former waste disposal areas. OU1 addressed the risk due to exposure to explosives-contaminated soil (top four feet of soil). A ROD for OU1 was issued in November 1995 and is available in the Information Repository located in the Mead Public Library. The remedy was completed in 1997.SAFE 4450 Oklahoma Wk 6 EPA Mead NE History & Sampling Plan Presentation Discussion ORDER NOW FOR CUSTOMIZED AND ORIGINAL NURSING PAPERS OU2 addressed the remediation of contaminated groundwater and soil contaminated with volatile organic and explosive compounds (exclusive of those addressed in OU1) which may continue to be a source of groundwater contamination. The ROD for OU2 was issued in October 1996. The final decision selected in the ROD was containment and focused extraction of groundwater and soil removal. PREVIOUS INVESTIGATIONS AND RESPONSE ACTIONS OU3 includes a former on-site landfill and former waste disposal areas. OU3 includes soil in several investigation areas, as well as surface water (Figure 2 Next slide), and areas of potential vapor intrusion located above the OU2 groundwater plumes. Five areas investigated during the RI included USTs and ASTs. These were addressed under the USACE CON/HTRW program. Site Map Removal Actions The antimony contaminated soils identified in 2000 were excavated in 2008. These soils had concentrations over the risk-based remediation goal of 31 milligrams per kilogram (mg/kg). Approximately 575, 310, and 175 cubic yards were removed from the Potential Landfill Area (Investigation Area 24 in Figure 2), LL2 Paint Operations Area (Investigation Area 15 on Figure 2), and LL4 Paint Operations Area (Investigation Area 19 on Figure 2), respectively, and backfilled with clean soil. The excavated soil from all three areas was disposed of in the Butler County Landfill. During excavation in the Potential Landfill Area, a pocket of approximately 3 cubic yards of transite tiles (asbestos-containing material ACM) was found; the tiles were set aside in a separate area and removed from the site under the supervision of a Nebraska certified Asbestos Supervisor and disposed of in the Butler County Landfill. Data Use Background To determine the project Data Quality Objectives (DQOs), a series of planning steps are used as specified in the EPA Guidance for Data Quality Objective Process QA/G-4 (EPA, 2000) . The DQO development process is used to optimize the data collection necessary to meet the applicable decision criteria. The three (3) steps of the DQO process are presented in the following subsections. ? Step 1: State the Problem Kingston will conduct the required environmental restorations services at NOP in Mead, Nebraska. The remedial design is being implemented to remove antimony contaminated soil with follow-up site restoration at Load Line 2, load Line 4, and Potential Landfill Data Use Background The three (3) steps of the DQO process are presented in the following subsections. ? Step 2: Identify the Decision Cleanup of the contaminant will be verified by confirmatory sampling in Load Lines 2, 4 and Potential Landfill Area. Rationale for selection of confirmatory sampling is also presented in the Performance Work Statement. A review of the applicable analytical results will be conducted upon completion of the excavation to determine achievement of the cleanup goals. ?Step 3: Identify the Inputs to the Decision Decisions will be based on analytical data and cleanup goals. EPA methods will be used for all analytical procedures. Antimony is identified as an indicator compound which is used to define the extent of cleanup activities at the former NOP site, and as such will be used to verify cleanup goals have been attained. Sampling Plan ?Step 3: Identify the Inputs to the Decision In order to identify the inputs, we have to develop a sampling plan. Antimony was identified as an indicator compound. However, well have to sample for the following analytes: Target Compound List (TCL) Semi-Volatile Organic Compounds (SVOC) including Polyaromatic Hydrocarbons (PAHs) TCL Volatile Organic Compounds (VOCs) TCL pesticides and PCBs TAL metals See Field Sampling Plan (FSP) Sampling Worksheet. For TCL see: http://www.dnrec.delaware.gov/dwhs/sirb/Documents/Target%20Compound%20Lists.pdf Soil Sampling Here is an example how we collected the soil sample. Now we have to complete COC for the soil sample we collected. Sampling Plan Assignment ?Step 3: Identify the Inputs to the Decision Based on the sampling plan, youll have to complete Chain of Custody (COC) form. Include one sample per analyte. The attached COC is an example for water samples. Your task is to modify the COC for soil sample. One single sample for the following analytes: Target Compound List (TCL) Semi-Volatile Organic Compounds (SVOC) including Polyaromatic Hydrocarbons (PAHs) TCL Volatile Organic Compounds (VOCs) TCL pesticides and PCBs TAL metals (Antimony is one of the Target Analyte metals) For complete instructions, go to Assignments>COC Assignment Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10
