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Investigation Matrix
Summary of Solid Waste Management Unit and Area of Concern Status Table
Description | Estimated Amount Spent (in $1,000 as of July 2001) | Mapping | Soil-gas | Geophysics | Surface Sampling | Subsurface Investigation | Additional Investigation | Treatability Study | Remediation (Contaminants) | Remediation (UXO/Scrap metal) | Investigation Report | Draft Recommendations | Closure Recommended | Closure Approved by Regulators | |||
EM | GPR | RRS1 | TRRP | ||||||||||||||
Powder and ammo burn area (1954). | $130 | Feb-95 | -- | Feb-95 | Feb-95 | -- | Feb-95 (SB1-3); June-95 (SB1RW); Aug-Sep-96 (SB4-6); Mar-Apr-00 (SB4-6RW) | Feb-95 (Groundwater sample, SB3) | -- | -- | -- | Draft Jan-02 | RRS1 Closure | X |
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Small arms ammunition burning area (1954). | $108 | May-95 | Jun-95 | Feb-95 | Mar-95 | -- | Mar-95 (SB1-5); Jun-95 (SB5RW) | Mar-95 (SB3,5) | -- | -- | Sep-97 | Draft Aug-01 | Removal of metal and UXO from stockpiles, stockpile sampling |
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Landfill area (garbage disposal and burning trash); filled in 1990-91. | $41 | May-95 | Jun-95, Nov-Dec-95 | Feb-95 | Feb-95 | -- | Mar-95 (SB1-7); Dec 95-Feb-96 (VEWs, VMPs); Apr-00 (RW-VEW7-18) | Mar-95 (Groundwater sample, SB1) | Mar-96 Installed SVE system. Currently in operation. | -- | -- | Draft Nov-01 | Removal of contaminated soil |
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Classified burn area (documents and trash). | $171 | Feb-95 | Jun-Jul-95, Nov-Dec-95 | Feb-95 | Feb-95 | -- | Mar-95 (SB1-5); Apr-00 (SB6-17) | Mar-95 (Groundwater sample, SB5) | -- | -- | -- | Draft Nov-01 | Removal of waste in trench and confirmation sampling |
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Possible fired small arms ammo brass area. Not located. | $15 | Mar-96 |
| Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | -- | -- | -- | -- | -- | Draft Jun-01 | Additional surface soil sampling to characterize extent of mercury contamination |
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Possible solid waste disposal area. | $15 | Mar-96 | -- | Mar-96 |
| Mar-96 (SS1-3); Mar-00 (SS1-3RW) | -- | -- | -- | -- | -- | Draft Nov-01 | RRS1 Closure | X |
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Possible fired small arms ammunition brass disposal area. | $24 | Aug-95 | -- | May-95 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | -- | -- | -- | -- | Mar-97 | Draft Jun-01 | RRS1 Closure | X |
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Fired small arms ammo brass disposal area (piles of fire bricks, ammo shells). | $35 | Aug-95 |
| Feb-95 | -- | Apr-00 (Sift1-3) | Aug-96 (SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | Aug-97 | Draft Jul-01 | Remediation of stockpiled and in-situ soils |
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Miscellaneous solid waste (metal and weapons) disposal area. | $113 | Feb-96 | -- | Nov-99 | Nov-99 | -- | Mar-00 (SB1-3) | -- | -- | -- | -- | in progress | (probably not closure) |
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Ammunition disposal area. | $68 | Jul-95 | Jul-95; Aug-96 | Mar-Apr-96 | -- | -- | -- | -- | -- | Aug-97 | Aug-97 | in progress | -- |
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Miscellaneous solid waste disposal (ammo, scrap metal, const. debris). | $57 | Aug-95 | Jul-95 (see AOC 38) | Apr-95 | -- | -- | Feb-00 (SB1-5) | -- | -- | -- | -- | Draft Oct-01 | Removal of waste in trench and confirmation sampling |
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Landfill, WPA trash when igloos were being built. | $44 | May-95 | -- | May-95 | -- | -- | Aug-Sep-96 (SB1-4); Mar-00 (SB1-4RW) | -- | -- | -- | -- | Draft Oct-01 | Removal of waste and confirmation sampling |
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Trash dump area. | $44 | Mar-96 | -- | Mar-Apr-96 | -- | -- | Aug-96 (SB1-4); May-97 (SB1-2); Mar-00 (SB1-4-RW) | -- | -- | -- | -- | Draft Oct-01 | Excavation of waste and verification surface sampling. |
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Possible fired brass area - not located. | $6 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Letter requesting that this site be delisted was sent to TNRCC. | -- |
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Landfill (target vehicles, weapons mounts). | $78 | Mar-95 | Aug-96 | Mar-95, Aug-99 | Mar-95, Aug-99 | Mar-00 (SB1-9) | Mar-00 (SB1-9) | -- | -- | -- | -- | Draft Aug-01 | Removal of buried metal debris and confirmation sampling |
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Solid waste disposal area (metals and weapons). | $133 | Feb-95 | -- | Feb-95 | Feb-95 | -- | Feb-95 (SB1-3); Jun-95 (SB1-3RW); Aug-Sep-96 (SB4-6), Mar-00 (SB4-6RW) | Feb-95 (Groundwater sample, S3); Jun-95 (Groundwater samples SB1-3RW) | -- | -- | -- | Draft Nov-01 | RRS1 Closure | X |
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Former OB/OD area. | $1,116 | Mar-94 | -- | Dec-94 | -- | Dec-94 (SS1-43); Sep-95 (SS44-60); | Dec-94 (SB1-10); Sep-95 (SB11-13); Mar-00 (SB1-8RW) | -- | Underway | Jul-99; Aug-01 (PIMS) | Dec-95; Sep-95; Jan-May-97 | Draft Aug-01 | Remediation of stockpiled and in-situ soils |
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Ammunition disposal areas. | $6 | Mar-94 | -- | -- | -- | Dec-94 | -- | -- | -- | Jul-99 | Jul-99 | Combined with B-20 | See B-20 |
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Burn area (artillery shells). | $22 | Feb-Mar-95 | -- | Feb-Mar-95 | -- | Mar-96 (SS1-5); Mar-00 (SS1-5-RW) | -- | -- | -- | -- | -- | Draft Jul-01 | RRS1 Closure | X |
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Disposal trenches (two green canisters). | $41 | Mar-95 | Aug-96 | Mar-95 | -- | -- | Mar-00 (SB1-3) | -- | -- | -- | -- | Draft Oct-01 | Removal of waste in trench and confirmation sampling |
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Disposal Trench (glass ampoules of liquid). | $41 | Mar-95 | -- | Mar-95 | -- | -- | -- | -- | -- | -- | -- | in progress | -- |
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Spent ammo/rockets area. | $376 | Mar-95 | -- | Mar-95 | Mar-95 | Mar-00 (SB1-5) | Mar-00 (SB1-5) | -- | Underway | -- | Mar-Sept-97 | Draft Aug-01 | Remediation of stockpiled and in-situ soils |
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Possible disposal trench. | $38 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | Sep-96 (SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Sep-01 | TRRP Closure - APAR |
| X |
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Possible disposal trench. | $41 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | Sep-96 (SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Nov-01 | Excavation of test pit |
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Sanitary landfill, consisting of 5-6 trenches (6 ft deep, 3 ft wide). | $38 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | Aug-96(SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Oct-01 | Removal of waste and confirmation sampling |
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Disposal trenches (molten metal, ammo, ammo parts). | $193 | Feb-95 | Jun-95 | Feb-95 | Feb-95 | Feb-95 (SB1-6) | Feb-95 (SB1-6) | Feb-97 | Underway | -- | Jun-97 | Draft Aug-01 | Remediation of stockpile soils |
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Solid waste disposal area (in old quarry). | $64 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-4); Mar-00 (SS1-4RW) | Aug-96 (SB1-6); Mar-00(SB1-RW) | -- | -- | -- | -- | Draft Nov-01 | Removal of waste on ground surface and limestone embankment walls, followed by verification sampling |
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Solid waste disposal area. | $38 | Mar-96 | -- | Mar-96 | -- | Mar-96 )SS1-3); Mar-00 (SS1-3RW) | Aug-96 (SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Oct-01 | Removal of waste and confirmation sampling |
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Lead shot/sand pipe bedding. | $57 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SB1-3) | Aug-96 (SB1-3); Mar-00 (SB1-3RW) | Jul-97 | -- | -- | -- | Draft Aug-01 | RRS1 Closure | X |
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Lead shot/sand pipe bedding. | $65 | Jul-95 | Jul-95 | Mar-96 | -- | Mar-96(SS1-3); Mar-00 (SS1-3RW) | Aug-96 (SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Nov-01 | TRRP Closure - APAR |
| X |
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Lead shot/sand pipe bedding | $65 | Mar-96 | -- | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | May-97 (SB1-3); Mar-00 (SB1-3RW) |
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| X |
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Maintenance pit floor drain and discharge point. | $38 | Jul-95 | Jul-95 | Mar-96 | -- | Mar-96 (SS1-3); Mar-00 (SS1-3RW) | Aug-96(SB1-3); Mar-00 (SB1-3RW) | -- | -- | -- | -- | Draft Jan-02 | Additional sampling to determine extent of contamination, followed by remediation/disposal of contaminated soil |
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Livestock area. Inner cantonment, SW of Well 16. | $0 | Mar-95 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Inactive makeshift ammo demolition facility. | $61 | Jul-95 | Jul-95 | Mar-Apr-96 | Mar-Apr-96 | -- | Feb-Mar-00 (SB1-6) | -- | -- | -- | -- | in progress | (Surface excavation, confirmation sampling) |
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Dud ammunition disposal area. | $131 |
| -- | -- | -- | Mar-00 (SB1-3) | Mar-00 (SB1-3) | -- | Underway | -- | Feb-May-97 | in progress | Remediation of stockpiled and in-situ soils |
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Hazardous waste storage area (<90-day). | $72 | -- | -- | -- | -- | Apr-94 (SS1-7) | Sep-92 (SB1-10) | -- | -- | Jun-94, Feb-95 Disposed of IDW under TNRCC guidance | -- | -- | Site closure approved. |
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Inactive incinerator (built in 1943), currently used for transformer storage. | $61 | Mar-96 | Aug-96 | Mar-96 | -- | Apr-00 (SS103) | Mar-00 (SB1-3) | -- | -- | -- | -- | in progress | (Additional work) |
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Waste liquid/sludge oxidation pond (1975). | $560 | Feb-95 | Jun-95; Aug-96 | Feb-95 | -- | Nov-95 (SS1) | Mar-95 (SB1-4); Nov-99 (SB5-24); Apr-00 (SB25-29) | Mar-95 (3 surface samples) | -- | -- | -- | -- | -- |
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Coal bins (no longer in use). | $6 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Letter requesting that this site be delisted was sent to TNRCC. | -- |
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Area immediately around Well 16. Northeast area of inner cantonment. | $33 | Jun-Jul-95 | Jun-Jul-95 | Feb-95; Dec-99 | Feb-95; Dec-99 | Apr-00 (SS1-5) | -- | -- | -- | -- | -- | Draft Jan-02 | RRS1 Closure | X |
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Area between Well 16 and B-3. Possible buried mustard gas canisters location verified as not present by magnetometer survey (1997). Southeast of Well 16. | $19 | Mar-95 | Jul-95 | Mar-95 | Mar-95 | Jan-00 (SS1-10) | -- | Feb-97 | -- | -- | -- | Draft Sep-01 | RRS1 Closure | X |
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Livestock area. NW of Well 16 and N of Well D. | $17 | May-95 | Dec-99 | May-95 | May-95 | -- | -- | -- | -- | -- | -- | -- | -- |
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Livestock area. Inner cantonment, SW of Well 16. | $50 | Mar-95 | Jul,Nov-95 | Mar-95 | -- | Jan-00 (SS1-60) | -- | -- | -- | -- | -- | Draft Sep-01 | Investigate anomaly |
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None. Area west of Well 16 between North Outer Rd and cantonment fence. | $18 | Mar-95 | Jul-95 | Mar-95 | -- | Jan-00 (SS1-60) | -- | -- | -- | -- | -- | Draft Sep-01 | RRS1 Closure | X |
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None. Area east of Well 16 between North Outer Rd and cantonment fence. | $18 | Mar-95 | Jul-95 | Mar-95 | -- | Jan-00 (SS1-5) | -- | -- | -- | -- | -- | Draft Sep-01 | RRS1 Closure | X |
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Gate area east of well 16. North Pasture, north of gate 6. | $27 | May-95 | Jun-Jul-95; Dec-99 | May-95 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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None. South of SWMUs B-28 and B-19, west of B-4. | $33 | May-95 | Jun-Jul-95 | May-95 | -- | Mar-01(SS1-9) | Mar-01(1-9) | -- | -- | -- | -- | in progress | -- |
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Shallow trench without mounds. Metal, UXO. Located 50 ft south of B-7. | $33 | Dec-99 | -- | Dec-99 | -- | Mar-01(SS1-3) | -- | -- | -- | -- | -- | in progress | -- |
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Fox holes and trenches. UXO includes Stokes mortars and 20-lb bombs. Located south of B-9 along west slope of hill. | $0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Flat area with spent and undamaged bullets. Located east of B-31, near bend in road. | $0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Bermed area with stockpile of lead shot and sand. Located south of Engineering on east side of Thompkins Road. | $0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area of trenches and mounds (similar to B-15/16). South of B-15/16, in SW area of East Pasture. | $73 | Aug-99 | Aug-96 (see B-15/16) | Aug-99 | Aug-99 | Jun-00 (SS1-3) | -- | -- | -- | -- | -- | Draft Sep-01 | RRS1 Closure | X |
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Three N-S trending mounds and a construction debris pile. Located north of B-15/16. | $73 | -- | Aug-96 (see B-15/16) | Jul-Aug-99 | Jul-Aug-99 | Jun-00 (SS1-3) | -- | -- | -- | -- | -- | Draft Oct-01 | RRS1 Closure | X |
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Trench (4 x 7 ft) without surficial debris. Located SW of deer stand 41 in central East Pasture. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area with orange discolored material (most likely nickel penetrate) at ground surface. South of B-30 along gravel road. | $63 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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East pasture, east of active range, approximately 25 acres, area around B-9. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Feb-97 (UXO clearance) | -- | -- |
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Area west of B-4 towards Salado Creek near trees, two trenches. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Building foundation near B-27 at Central Road and road to "D" Tank, batteries at rear of slab. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area near gutting pit, east of Welding Shop Building, right side of road batteries were stored in the area. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Landfill, south of Tenberg Drive, east of Salado Creek. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Landfill, at intersection of Bernard Road and East Outer Road, surface depression on south side of intersection. | $73 | Aug-99 | -- | Aug-99 | Aug-99 | Jan-00 (SS1-3) | -- | -- | -- | -- | -- | Draft Sep-01 | Investigate anomaly |
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East of Building 98 and KOA Area, cleaning/maintenance activities performed at temporary structures. | -- | -- | Jan-Feb-01 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Suspected disposal trench within Inner Cantonment. | $73 | Aug-99 | -- | Aug-99 | Aug-99 | Jan-00 (SS1-3) | -- | -- | -- | -- | -- | Draft Jun-01 | Investigate anomaly |
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Trench-type anomaly located west Test Pad in the East Pasture. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Trench located west of tunnel and entrance roadway in the East Pasture. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Suspected landfill. | $73 | Aug-99 | -- | Aug-99 | Aug-99 | Jan-00 (SS1-3) | -- | -- | -- | -- | -- | Draft Sep-01 | RRS1 Closure | X |
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Located west of monitoring well MW-2 and east of Salado Creek. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area consisting of 3 barrels containing rocks, south of deer stand 41 in the East Pasture. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area east of SWMU B-4; flares observed in the area. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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A concrete pit area that housed a metal vat that contained TCE and PCE. | $201 | Mar-00 | Jan-Feb-01 | -- | -- | -- | Mar-00 (SB1); Mar-Apr-01 (SB2-13, MW1-4) | -- | -- | -- | -- | in progress | (further characterization of COC plumes) |
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Area north of Well 16 in the outer cantonment. | $44 | Dec-99 | Dec-99 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Concrete pad near Building 90 housed a vat containing cleaning solvents. | $110 | Apr-01 | Jan-Feb-01 | -- | -- | -- | Apr-01 (SB1-3) | -- | -- | -- | -- | Draft Dec-01 | -- |
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Area includes metal slag/debris storage area from Wheelabrator operations next to Building 90-2. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Located on west side of CSSA. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Building used to mix pesticides. Near Building 1. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Area containing concrete, possible asbestos. Located east of Building 94, in SW CSSA. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Ranch landfill with overgrown trenches. Near Well I1, in northwest corner of CSSA. | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Trash removed by CSSA personnel: barbed wire, rusted razor blades, broken glass. | -- | -- |
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