Soils contaminated with PCP, PNA and dioxin
Temporary on-site incineration of soils; backfill ash in excavated areas
2nd
GW contaminated with organics and metals
Installation of a groundwater monitoring system; monitoring for 30 years following completion of the source control remedy
1st
Soil and sediment contaminated with organics and inorganics; GW contaminated with low levels of organics and inorganics
Excavation, removal and transportation of buried drums to a RCRA facility; contaminated soils to be excavated and stabilized on-site; installation of a slurry wall and French drain; contaminated GW transported to a RCRA facility; multi-layer RCRA cap over partial areas; land use restrictions; groundwater monitoring
1st
Soils contaminated with dioxin/furan and herbicide compounds
Excavation and transport to Vertac Chemical site for temporary storage; thermal treatment and disposal/revegetation of resulting ash
1st
Soil and groundwater contaminated with PCP, PNAs and chlorinated dibenzo dioxins and furans
Onsite thermal destruction of the contaminated surface soils, lagoon sludges, and drainageway sediments; placement of the clean ash on the site and cover with a vegetated soil layer; collection and onsite treatment using carbon adsorption of the contaminated lagoon water and groundwater
Soil and GW contaminated with VOCs
GW extraction and treatment via interceptor trenches and/or pumping wells; in-situ bioremediation of deep subsurface soils via above ground bioreactor, nutrients and/or oxygen enhancement system; off-site incineration of wood treating fluids; fencing; and monitoringPresent Worth - $17,700,000
Soil contaminated with 2,3,7,8-TCDD
Excavation and transport to Vertac Chemical in Jacksonville, AR for temporary storage; thermal treatment
Source Control
Soil, sludges, and debris contaminated with VOCs, SVOCs, pesticides, heavy metals, and PCBs
Excavation and stabilization/solidification of soils and sludges with off-site disposal; separation and cleansing of contaminated debris and off-site disposal at Subtitle D landfill; installation of erosion control features for soil cover; institutional controlsPresent Worth - $6,900,000
Offsite areas OU; areas contaminated with TCDD, chlorinated benzenes, and chlorinated phenols
Removal of sediments from sewage collection lines; removal and on-site incineration of sludge from sludge digester; cap sludge drying beds cap aeration basin with one foot of clean soil; monitoring
Above-ground media contaminated with VOCs and herbicides
On-site incineration of PTW w/on-site lined consol./cont. of LLTWPresent Worth - $20,800,000 to $38,700,000
Soil and GW contaminated with PAHs, PCP, dioxins, and NAPLs
Partial excavation and on-site incineration (of NAPLs) w/ bioremediation; active treatment of GW and NAPLs via hydraulic containmentPresent Worth - $46,000,000
Sub
Soil, sediments, and GW contaminated with PAHs and inorganics
Onsite incineration of soil, onsite disposal of ash and capping; GW pump and onsite treatment with reinjection
1st
Soil, waste ponds and GW contaminated with pesticides, VOCs, inorganics and organics
Capping former disposal area; venting system; slurry wall; consolidation of wastes or offsite disposal
1st
Soil, SW and GW contaminated with organics
Onsite incineration of drums and sludges; RCRA cap; gas venting pipes; pond water pump and treatment with discharge to SW
Soils contaminated with residual barium
Institutional controls; excavation and off-site disposal of sludges and subsurface soils; GW monitoringNet Present Worth - $410,000
1st
Soils and sludges contaminated with VOCs and SVOCs
On-site incineration followed by on-site stabilization and disposal of ash, associated soils and tank contents; institutional controls, and GW monitoring
2nd
Water from two open pits contaminated with VOCs, SVOCs, and TPHs
Pump and treat rainwater in the two pits; segregate paraffin layer in West Pit; excavate sludge/soil from Washout Pit and consolidate into West Pit; and place impermeable synthetic membrane over West Pit
Soi, GW, and SW contaminated with metals, VOCs, and PAHs
Biological treatment of sludges; stabilization/solidification of residuals; on-site disposal; clay cover; GW monitoringPresent Worth - $13,113,000
1st
Soil, sediments, SW and GW contaminated with organics and inorganics
RCRA cap with diversion of SW; onsite treatment of GW in upper, perched water-bearing zone
1st
Soil, sediments, and GW contaminated with VOCs and heavy metals
Demolition and consolidation of on-site equipment and structures; on-site neutralization of consolidated acidic wastes; on-site stabilization and solidification of wastes containing lead; and off-site disposal of the treated waste
1st
Soil and sediments contaminated with VOCs, PCBs, PAHs, and metals
Consolidation of off-site and on-site wastes (~42,000 cys of material); on-site neutralization of acidic wastes; on-site stabilization and solidification of waste containing lead; and off-site disposal of treated waste
2
GW contaminated with VOCs, metals, and DNAPLs
Institutional controls and monitoringPresent Worth - $1,500,000
1st
Soil and GW contaminated with VOCs (benzene, vinyl chloride) and metals (arsenic)
Repair existing cap; installation of landfill gas monitoring system; monitoring; and institutional controls
1st of 2
Soil COCs include lead, cadmium, and arsenic
Removal on cont. soils; capping of unpaved alleyways; monitoring of community blood lead levels; removal, tilling, capping, and/or treatment of cont. soils in commercial and industrial areasPresent Worth - $32,600,000
2nd
Groundwater contaminated with chromium
Demolition and disposal of building; extraction of contaminated groundwater from the Trinity Aquifer; electrochemical treatment of groundwater which exceeds the Primary Drinking Water Standard for chromium; reinjection of treated groundwater into the Trinity Aquifer; monitor site for a minimum of 30 years
2nd
Groundwater contaminated with chromium
Extraction of chromium-contaminated groundwater from a perched waterbearing zone and the Trinity Aquifer; electrochemical treatment of groundwater which exceeds the Primary Drinking Water Standard for chromium; reinjection of treated groundwater into the Trinity Aquifer; monitor site for a minimum of 30 years
1st
Soil, sediment, GW, and SW contaminated with VOCs (benzene, toluene, xylenes), PAHs, phenols, and metals (arsenic, chromium, and lead)
In-situ bioremediation of organic-contaminated sediments; in-situ stabilization of inorganic-contaminated sediments; sediment and soil unable to be treated via in-situ will be treated via prepared-bed bioremediation followed by stabilization
1st
Soil, SW, pits and GW contaminated with TCE, VOCs, benzene, organics and inorganics
Offsite thermal destruction of sludges; solidification/stabilization of remaining sludges; containment in an onsite RCRA landfill
1st
Soil contaminated with PCBs
Excavate and chemically treat soil through dechlorination; backfill treated soil in excavated areas
Amendment
Soil contaminated with PCBs
Capping in placePresent Worth - $648,000
1st
Lake water, sediments and soils contained elevated levels of total phenolics, total dissolved solids, total organic carbon and various inorganics
Evaporation of the water in Santa Fe Lake; treatment of residue and lake sediments by biodegradation in an onsite treatment; in situ treatment of soils underneath lake sediments; removal of treated soils to the treatment area which will be capped; monitoring of the treatment area and of groundwater during remediation with additional monitoring after closure
Soils, sediments, and source materials contaminated with lead, antimony, arsenic, cadmium, mercury, nickel, silver, and PAHs
Excavation and treatment via stabilization/solidification of ~15,000 cys of contaminated soils, sediments, and source material; disposal of treated waste on-site; and monitoring of GW
Soils contaminated primarily with lead
Treat soils via solidification/stabilization; GW monitoring; drum removal
1st
GW contaminated by cyanide and associated nitrates
Pump and treat GW; removal of chemical drums; decontamination of tanks and piping; fill discharge pit and cinder block trenches with on-site soils and waste pile materials; plug on-site abandoned water supply well
Soil (tailings and sediment), GW, and SW contaminated with metals
Excavation; off-site reprocessing; reclamation and disposal of residualsPresent Worth - $6,214,036
1st
Indoor/Outdoor areas contaminated by radon
No further action for this operable unit (Radon Unit)
Soils and debris contaminated with PCBs
No further action
Soil contaminated with lead, mercury, chromium, nickel, BTEXs, lead, and PAHs; GW contaminated with VOCs
Extraction of NAPLs using the soil vapor extraction method; excavation and landfarming of West Pits contents and hydrocarbon contaminated soils; excavation and off-site disposal of lead and asbestos contaminated soils; extraction and treatment of GW; institutional controls, and monitoring
2nd
Groundwater contaminated with VOCs (including PCE and TCE)
Recover and treat groundwater with a packed aeration column; monitoring of treated water and ambient air (not a final remedy)
3rd
GW contaminated with VOCs
Cleaning and sealing abandoned wells; groundwater monitoring; access restrictions
4th
Soil and GW contaminated with VOCs including PCE, organics and metals
Soil vapor extraction with carbon adsorption treatment of effluent air; GW pump/treatment using air stripping, carbon adsorption, and chemical/physical treatment (if necessary), with reinjection into the aquifer; futher sampling and definition of soil and GW contamination; GW monitoring
5th
Soil and GW contaminated with VOCs including PCE, organics and metals
Remedy addresses soil only: Soils in the area of the drainage pit should remain undisturbed for the duration of the GW remedial action; a contingency plan will be developed with precautions to be implemented should the soils be accidentally disturbed during this period; following the completion of the GW remedial action, soil gases in the drainage pit area should be sampled to determine if the remaining levels pose any threat to human health or the environment
1st
GW contaminated with radiological and nonradiological constituents (including arsenic, cadmium, cobalt, nickel, radium-226/228, selenium and gross alpha)
Implementation of GW monitoring program; GW pump and treatment using existing or new extraction wells to control and remove tailings seepage with discharge to an evaporation disposal system; implementation of performance monitoring and evaluation program
1st
Soil contaminated with VOCs, PAHs and metals; SW contaminated with selenium
Relocation of affected sediments and stabilization of the waste channel using a technique to be developed during the remedial design
1st
Soils, GW contaminated with VOCs and base neutral organics
Aqueous-phase biological treatment of wastes if remedy meets EPA's pass/fail criteria; if not onsite incineration of wastes will be utilized
GW, soil and sediment contaminated with arsenic and phenol
Excavate arsenic contaminated soil; treat via in-situ vitrification; install multi-layer cap; GW pump and treat
1st
Soil and debris contaminated with inorganics and pesticides
Onsite consolidation; RCRA cap over consolidation cell
1st
Soil and groundwater in a shallow aquifer contaminated with VOCs, base neutral organics and copper
No action; however, site controls to limit exposure to contaminants (restricted access and fence); remove and decontaminate storage tanks and drums and transport to an approved disposal facility; monitoring and control of migration pathways; revegetate and regrade entire site to promote drainage and minimize infiltration
1st
Sludge, soil, SW and GW contaminated with VOCs, pentachlorophenol, pesticides, metals and base/neutral organics
In situ biological treatment of sludges and contaminated soils; groundwater recovery and treatment to reduce VOCs to a 10-6 risk level; surface water will be treated to meet Texas surface water quality standards; lagoon will be backfilled with clean soil and graded to promote drainage away from the site; post-closure monitoring of the upper and lower aquifers for 30 years
Sub
Possible contamination of SW and GW with VOCs and heavy metals
No further action remedy with monitoring of SW and GW
1st
Soil contaminated with PAHs; groundwater contaminated with DNAPLs
Oil/water separation and either carbon adsorption or fluidized carbon bed treatment of groundwater and mechanical soil washing of the contaminated soils
Sub
Waste pits contaminated with organics liquids, chlorinated hydrocarbons, spent catalysts, polymeric tars and other chemicals; sediments contaminated with heavy metals and low concentrations of organic contaminants; soil contaminated with chromium, copper, lead, VOCs and extractable organic compounds (DNAPLs); GW contaminated with VOCs and PAHs
Extraction and treatment of contaminated shallow and deep GW to MCLs; extraction and incineration of DNAPLs; excavation, consolidation and onsite containment of contaminated surface soils and sediment to four feet; installation of a GW gradient control system to create upward ground water gradients to impede further contamination migration; implementation of GW compliance monitoring and monitoring of the clay layer between the shallow and deep GW aquifers; GW will be treated using best available technology to ARARs or sent to a permitted wastewater treatment plant; deed restrictions; fencing; annual monitoring and maintenance
1st
Groundwater and sediments contaminated with PAHs and VOCs
On-site biotreatment of contaminated surficial soils; extraction/treatment of contaminated groundwater using oil/water separation and carbon adsorption; incinerate all non-aqueous phase liquids off-site
1st
Surface and subsurface soils, sludge and the Pesses Warehouse contaminated with cadmium, nickel, lead and copper
Contaminated off-site soils will be incorporated into treatment of on-site soils which will be treated in place utilizing a stabilization technique available for shallow soils; a concrete cap will be placed within the fenced portion of the site; a RCRA clay cap will be placed in the south field; the metal warehouse and equipment will be cleaned and left in place; liquid and solid wastes will be generated as a result of this decontamination process; solids will be combined with the soils remediation and the waters will be treated and discharged into the sewer system; equipment which cannot be adequately cleaned and water which cannot meet discharge requirements will require off-site disposal; the site will be maintained annually and inspected every 5 years
1st
Soil contaminated with benzene, VOCs and PAHs
Temporary storage in an onsite RCRA facility; temporary relocation of residents
2nd
Soils and GW contaminated with VOCs, SVOCs, and heavy metals
Treatment of soils via vapor extraction; catalytic thermal destruction of VOCs; migration control via slurry wall; monitoring GW
2nd
Soil, SW, pits and GW contaminated with TCE, VOCs, benzene, organics, and inorganics
No action - long-term monitoring for at least 30 years, following completion of source control remedial action (described in 9/87 ROD); warning signs and access restrictions
1st
Soils, sediments, SW contaminated with PCBs and other organics (including benzene and phenol)
Biotreatment of all waste; if biotreatment reduces the level of PCBs in the residuals to less than 50 ppm, the residuals will be stabilized, returned to the pond and capped; however, if the concentration is greater than 50 ppm, they will be stabilized and returned to a RCRA-compliant landfill; installation of a RCRA-compliant cap over the entire pond and dike area; install a flexible spur jetty river bank erosion control system in River; groundwater monitoring for minimum of 30 years; decontaminate, disassemble and properly dispose of all onsite tanks or drums and their contents, and dispose of processing equipment; treat potentially contaminated stormwater and waste-water streams resulting from the water treatment alternatives, to remove solids, metal and organic constituents; institutional controls
Sub
Soil and sludge contaminated with metals, PCBs, benzene, toluene and trichloroethylene; GW contaminated with VOCs
Establishment of ACLs as the GW protection standards; GW monitoring to ensure ACLs are not exceeded; sampling and analysis of river immediately downgradient and upgradient of the point of entry of GW from the site into the river; implementation of controls to preclude potential use of contaminated GW; implementation of a corrective action plan to ensure that protective levels are met at the point of potential exposure in the event the ACLs are exceeded
1st
Soil contaminated with PCBs
Excavate the soil, treat the soil with alkali metal polyethlyene glycolate (APEG); backfill treated soil
2nd
GW contaminated with PCBs and TCE; soil contaminated with PCBs
Pump and treat groundwater via air stripping; a carbon unit will be used to filter the exhaust air if it does not meet Texas Air Quality Criteria; treated groundwater will be disposed in a sanitary sewer or pumped back into the waterbearing zone
1st
Soil and groundwater contaminated with PAHs, organics, inorganics, pesticides, PCBs, VOCs, and semi-VOCs
Soil remediation using soil washing and in-situ soil flushing; groundwater remediation using physical/chemical separation followed by filtration and activated carbon adsorption (or, if a PRP offers an in-situ biological treatment process for groundwater and can demonstrate that this process can be implemented and operated at an efficiency equal to or better than activated carbon then this method will be used to remediate groundwater)
1st
Metals, inorganics, VOCs and semi-VOCs found at very low levels in GW, soil and SW
No remedial action
1st
Soil and GW contaminated with PAHs, dioxin/furan, and Pentachlorophenol
Excavation and thermal treatment of soils; backfill treated soils; pump and treat GW via carbon adsorption
2
PCP, PAH, and dioxin contamination
Extraction and treatment via carbon adsorptionPresent Worth - $320,000
Sub
Soil contaminated with PAHs, PCP, and chlorinated isomers of dioxin and dibenzofuran
Sample the residential area to better delineate all soils falling above the target soil action levels established in the ROD; excavated all soils from residential and commercial portions of the site that are above the respective human health criteria and treat via Critical Fluid Extraction; dispose of the organic concentrate from the extraction process by off-site incineration; as human health criteria and as treatment standards for K001 contaminated soils are met, the treated soils will be reburied on the appropriate portion of the site
To obtain copies of selected Records of Decision, please fill out the INSS request form or e-mail your request to inss@envinfo.com. The Network also can be reached via telephone at (202) 467-7777 or FAX at (202) 467-7176.