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MRS 10 Location

MRS‐10 is a 23.7‐acre portion of Camp Swift used for antitank maneuver training. MRS‐10 is on the eastern end of the former Camp Swift, approximately 4 miles northwest of Paige, Texas.  It is an uninhabited mix of open grassland and light to moderately wooded areas.  There is a one‐ quarter acre surface water impoundment at the eastern end of the site.  
The land is used for small‐scale cattle ranching.  Recent aerial photography shows a trailer and outbuilding at the site.  Current land use is expected to remain the same, with possible residential acreage development in the future. The residual munitions consist of M1B1 practice land mines and associated M1 fuzes (collectively referred to as Munitions and Explosives of Concern (MEC)) to a depth of one foot below grade.

MRS 10 Response

Based on these finds a Remedial Investigation was performed to ascertain the nature (type and number) and extent (horizontal distribution and depth below surface) of munitions at Camp Swift. The RI documented one intact practice mine and fuze along with Munition Debris consisting of ‘many expended antitank mines and associated components confirmed to depth of 12 inches” (Proposed Plan, 2015) in an area identified as a training/maneuver area.

MRS 10 Selected Remedy

Remediation activities have been contracted and are activly in progress to ensure the long term protectiveness of this site.
 
The Selected Remedy for Munitions Response Site 10 is:
 
  • Alternative 5B: Surface and Subsurface Clearance to 1.5 Feet Using Digital EMI Systems in conjunction with Advanced Geophysical Classification with Land Use Controls (LUCs).
*The Selected Remedy was chosen in accordance with Comprehensive Environmental Response, Compensation, and Liability Act, 42 U.S. Code § 9601, et seq., as amended by the Superfund Amendments and Reauthorization Act (SARA), and, to the extent practicable, the National Contingency Plan (NCP), 40 CFR, Part 300, et seq., as amended.
MRS 10 Risk Summary

MRS 12 Location

MRS-12 is a 9-acre portion of Camp Swift. MRS 12 is located near the geographic center of the former Camp Swift, approximately 8 miles west of Paige, Texas. It is an uninhabited mix of open grassland and light to moderately wooded areas
Land use in the area is small-scale ranching, light agriculture (hay meadows and turf farms), and acreage‐style residential development. The area is lightly populated with dozens of residences located within 2 miles west of MRS-12, and several residential acreage style properties within 1 mile of the site. Current land use is expected to remain the same, with possible residential acreage development in the future.

MRS 12 Response

Based on these finds, a RI was performed to ascertain the nature (type and quantity) and extent (horizontal distribution and depth below surface) of munitions at former Camp Swift. The RI/FS (TtEC, 2015) documented the presence of MEC in the form of 4.2-in and 81millimeter (mm) mortars; 75mm and 105mm projectiles; 2.36-in rockets; and practice antitank mines at other MRSs investigated during the RI. All MEC encountered during the investigation were destroyed and removed from Camp Swift. The RI also documented the presence of MD consisting of expended 4.2-in, 60mm, and 81mm mortars; various mortar shell fragments; expended 37mm, 75mm, and 105mm projectiles; expended 2.36-in rockets; rifle grenades; practice antitank mines; fuzes; and multiple unidentifiable projectile fragments. Although no MEC was discovered in MRS 12 there was MD consisting of rifle grenade, smoke grenade, and 2.36-inch rocket fragments. These MD are indicative of the MEC that could be present at MRS 12.

MRS 12 Selected Remedy

Remediation activities have been contracted and are activly in progress to ensure the long term protectiveness of this site.
 
The Selected Remedy for Munitions Response Site 12 is:
 
  • Alternative 5B: Surface and Subsurface Clearance to 1.5 Feet Using Digital EMI Systems in conjunction with Advanced Geophysical Classification with Land Use Controls (LUCs).
*The Selected Remedy was chosen in accordance with CERCLA, 42 U.S. Code § 9601, et seq., as amended by the Superfund Amendments and Reauthorization Act (SARA), and, to the extent practicable, the National Contingency Plan (NCP), 40 CFR, Part 300, et seq., as amended.

MRS 13 Location

MRS-13 is a 1-acre portion of Camp Swift. MRS-13 is located near the central western edge of the former Camp Swift, approximately 3 miles north of Bastrop, Texas. The land comprising MRS-13 is currently privately owned and used for residential activities.
Land use in the area is light agriculture (hay meadows and a turf farm), and acreage‐style residential development. There are several dozen homes within 1 mile of the site. The area is light to moderately populated. Current land use is expected to remain the same, with possible residential acreage development in the future.

MRS 13 Response

Based on these finds, a RI was performed to ascertain the nature (type and quantity) and extent (horizontal distribution and depth below surface) of munitions at former Camp Swift. The RI/FS (TtEC, 2015) documented the presence of MEC in the form of 4.2-in and 81millimeter (mm) mortars; 75mm and 105mm projectiles; 2.36-in rockets; and practice antitank mines at other MRSs investigated during the RI. All MEC encountered during the investigation were destroyed and removed from Camp Swift. The RI did not document the presence of MEC or MD at MRS 13. However, the EE/CA did document the presence of MEC and MD in AOI 5 consisting of 60mm and 81mm mortars and practice antitank mines.

MRS 13 Selected Remedy

Remediation activities have been contracted and are activly in progress to ensure the long term protectiveness of this site.
 
The Selected Remedy for Munitions Response Site 13 is:
 
  • Alternative 5B: Surface and Subsurface Clearance to 1.5 Feet Using Digital EMI Systems in conjunction with Advanced Geophysical Classification with Land Use Controls (LUCs).
*The Selected Remedy was chosen in accordance with CERCLA, 42 U.S. Code § 9601, et seq., as amended by the Superfund Amendments and Reauthorization Act (SARA), and, to the extent practicable, the National Contingency Plan (NCP), 40 CFR, Part 300, et seq., as amended.

MRS 14 Location

MRS-14 is a 46-acre portion of Camp Swift. MRS-14 is located near the central western edge of Camp Swift, approximately 3 miles north of Bastrop, Texas. The land comprising MRS-14 is currently privately owned with five residential structures present.
Land use in the area is small-scale ranching, light agriculture (hay meadows and turf farms), and acreage‐style residential development. There are several dozen homes within 1 mile of the site. The area is light to moderately populated. Current land use is expected to remain the same, with possible residential acreage development in the future.

MRS 14 Response

Based on these finds, a RI was performed to ascertain the nature (type and quantity) and extent (horizontal distribution and depth below surface) of munitions at Camp Swift. The RI/FS (TtEC, 2015) documented the presence of MEC in the form of 4.2-in and 81millimeter (mm) mortars; 75mm and 105mm projectiles; 2.36-in rockets; and practice antitank mines at other MRSs investigated during the RI. All MEC encountered during the investigation were destroyed and removed from Camp Swift. MEC consisting of a rifle grenade and an antitank mine were found within AOI 6. No MEC were found at MRS 14. However, non-hazardous MD were found at MRS 14 consisting of grenade, rocket, antitank mine, and fuze fragments at a depth of up to 12-in bgs.

MRS 14 Selected Remedy

Remediation activities have been contracted and are activly in progress to ensure the long term protectiveness of this site.
 
The Selected Remedy for Munitions Response Site 14 is:
 
  • Alternative 5B: Surface and Subsurface Removal of MEC to 1.5-ft bgs using Digital EMI Systems in conjunction with Advanced Geophysical Classification with Land Use Controls. A subsurface removal in the accessible portions of the site to the depth of detection in combination with the LUCs will mitigate the risk of an incident to occur to human receptors such that a determination can be made that there is a negligible risk of an incident to occur
*The Selected Remedy was chosen in accordance with CERCLA, 42 U.S. Code § 9601, et seq., as amended by the Superfund Amendments and Reauthorization Act (SARA), and, to the extent practicable, the National Contingency Plan (NCP), 40 CFR, Part 300, et seq., as amended.

MRS 15 Location

MRS-15 is a 7-acre portion of Camp Swift. MRS-15 is located near the southwestern edge of Camp Swift, approximately 1.25 miles north northeast of Bastrop, Texas. The land comprising MRS-15 is currently owned by the town of Bastrop and is undeveloped.
Land use in the area is small-scale ranching, light agriculture (hay meadows and turf farms), and acreage‐style residential development. There are several dozen homes within 1 mile of the site. The area is light to moderately populated. Although current land use is expected to remain the same, zoning allows for possible residential acreage development in the future.

MRS 15 Response

Based on these finds, a RI was performed to ascertain the nature (type and quantity) and extent (horizontal distribution and depth below surface) of munitions at Camp Swift. The RI/FS (TtEC, 2015) documented the presence of MEC in the form of 4.2-in and 81millimeter (mm) mortars; 75mm and 105mm projectiles; 2.36-in rockets; and practice antitank mines at other MRSs investigated during the RI. All MEC encountered during the investigation were destroyed and removed from Camp Swift. The RI documented the presence of MEC consisting of two antitank mines within MRS 15. Also found were non-hazardous MD consisting of antitank mine fragments at a depth of up to 12-in bgs.

MRS 15 Selected Remedy

Remediation activities have been contracted and are activly in progress to ensure the long term protectiveness of this site.
 
The Selected Remedy for Munitions Response Site 15 is:
 
Alternative 5B: Surface and Subsurface Removal of MEC to 1.5-ft bgs using Digital EMI Systems in conjunction with Advanced Geophysical Classification with Land Use Controls.  A subsurface removal in the accessible portions of the site to the depth of detection in combination with the LUCs will mitigate the risk of an incident to occur to human receptors such that a determination can be made that there is a negligible risk of an incident to occur,
*The Selected Remedy was chosen in accordance with CERCLA, 42 U.S. Code § 9601, et seq., as amended by the Superfund Amendments and Reauthorization Act (SARA), and, to the extent practicable, the National Contingency Plan (NCP), 40 CFR, Part 300, et seq., as amended.