Conceptual Site Model - Argonne National Laboratory
Conceptual Site Model - Argonne National Laboratory Conceptual Site Model - Argonne National Laboratory
WVDP Phase 1 CSAPand analyzed from that location. This process will continue until the vertical extent ofcontamination above background is bounded. One down-hole gamma scan will beconducted from each soil location requiring deeper investigation with a static readingtaken every 15 cm vertically. The purpose of these samples is to define the vertical extentof contamination. [contingent]F.9.5Drainage Feature SamplingWMA 6 contains three distinct drainage features, the current WMA 6 drainage ditch, the reach ofErdman Brook that passes through WMA 6, and a drainage ditch the feeds Erdman Brook fromthe south (Figure F.1). For drainage features within WMA 6, the surface soil CG w requirementsapply. Surface drainage feature sampling will be conducted to determine ditch sedimentcontamination status relative to surface soil CG w requirements. Surface drainage features will besampled as follows:• Samples representing a 0-15 cm depth interval will be collected from ditch sediments. InWMA 6, the three drainage features have a combined length of approximately 360 m.Samples will be systematic located using a random start, separated by 30 m. [required]• If any 0-15 cm sample result indicates contamination impacts above background levelsand a 15 cm-1 m sample was not also collected, a 15 cm-1 m sample will be collectedfrom that location following the protocols used for the original 0-15 cm sample.[contingent]• If a sample indicates contamination impacts above background levels for the 15cm-1 mdepth interval, an additional sample from a depth of 1-2 m will be collected and analyzedfrom that location. This will be repeated, as necessary, until the vertical extent ofcontamination impact is bounded at that location. [contingent]F.9.6Buried Infrastructure Soil SamplingSoils associated with buried infrastructure within WMA 6 will be sampled to determine theircontamination status.Rev. 1 F-18
WVDP Phase 1 CSAP• Three locations along each piece of buried infrastructure within WMA 6 will be trenched.These locations will be selected to maximize the possibility that contamination will beencountered (e.g., locations where historical or current GWS data indicate surfacecontamination exists). During excavation, exposed soils will be monitored by scans forevidence of elevated gross activity. The purpose of this sampling is to evaluate thepresence of contamination associated with buried infrastructure. [required]oIf elevated readings are encountered below a depth of 1 m, soils exhibiting thehighest levels of gross activity will be sampled and analyzed.oIf elevated readings are not encountered below a depth of 1 m, a samplerepresentative of soils deeper than 1 m will be collected. In the case ofinfrastructure that did not carry waste or wastewater, the sample will be fromsoils immediately above the line. In the case of infrastructure that did carry wasteor wastewater, the sample will be from soils immediately beneath the line.• If contamination above background conditions is encountered at any selected location,trenching will continue to depth until background conditions are observed. An additionalsample will be collected from the base of the trench to verify background conditions. Thepurpose is to vertically bound observed contamination. [contingent]• If buried infrastructure soil sampling identifies contamination impacts greater thanbackground, biased sampling will continue following the line until at least twoconsecutive locations yield soil samples below surface soil CG w requirements. Locationspacing will be based on engineering judgment, including the geometry of the line, thelevel of contamination encountered, and surface evidence of contamination. The purposeof this sampling is to bound the extent of contamination associated with buriedinfrastructure, as necessary. [contingent]F.9.7Additional ContingenciesSampling and/or GWS data may indicate that contamination exists or extends beneath surfacescurrently covered by existing structures, concrete, asphalt, or gravel. In this case, “surface soil”will be defined as soil immediately beneath the cover. If sampling or GWS data indicate thatRev. 1 F-19
- Page 294 and 295: WVDP Phase 1 CSAPIn 1987, water fro
- Page 296 and 297: WVDP Phase 1 CSAPE.6 Planned Phase
- Page 298 and 299: WVDP Phase 1 CSAPis most likely ass
- Page 300 and 301: WVDP Phase 1 CSAPsample. If biased
- Page 302 and 303: WVDP Phase 1 CSAPsoils and a draina
- Page 304 and 305: WVDP Phase 1 CSAPE.9.6Buried Infras
- Page 306 and 307: WVDP Phase 1 CSAPE.9.9Decision-Maki
- Page 308 and 309: WVDP Phase 1 CSAPTable E.1 Historic
- Page 310 and 311: WVDP Phase 1 CSAPWMA 12Chemical Pro
- Page 312 and 313: WVDP Phase 1 CSAPFigure E.3 WMA 5 1
- Page 314 and 315: WVDP Phase 1 CSAPFigure E.5 WMA 5 1
- Page 316 and 317: WVDP Phase 1 CSAPFigure E.7 WMA 5 1
- Page 318 and 319: WVDP Phase 1 CSAPFigure E.9 WMA 5 2
- Page 320 and 321: WVDP Phase 1 CSAPFigure E.11 WMA 5
- Page 322 and 323: WVDP Phase 1 CSAPFigure E.13 Histor
- Page 324 and 325: WVDP Phase 1 CSAPFigure E.15 WMA 5
- Page 326 and 327: WVDP Phase 1 CSAPFigure E.17 WMA 5
- Page 328 and 329: WVDP Phase 1 CSAPNew Cooling Tower.
- Page 330 and 331: WVDP Phase 1 CSAPPlateau although t
- Page 332 and 333: WVDP Phase 1 CSAPF.4.2North Plateau
- Page 334 and 335: WVDP Phase 1 CSAPof the Process Bui
- Page 336 and 337: WVDP Phase 1 CSAPThe New Cooling To
- Page 338 and 339: WVDP Phase 1 CSAP• Verify Absence
- Page 340 and 341: WVDP Phase 1 CSAP• CG w Sampling.
- Page 342 and 343: WVDP Phase 1 CSAP• A minimum of t
- Page 346 and 347: WVDP Phase 1 CSAPcontamination may
- Page 348 and 349: WVDP Phase 1 CSAPF.10 ReferencesDOE
- Page 350 and 351: WVDP Phase 1 CSAPTable F.2 Sample N
- Page 352 and 353: WVDP Phase 1 CSAPFigure F.2 WMA 6 w
- Page 354 and 355: WVDP Phase 1 CSAPFigure F.4 WMA 6 A
- Page 356 and 357: WVDP Phase 1 CSAPFigure F.6 WMA 6 A
- Page 358 and 359: WVDP Phase 1 CSAPFigure F.8 WMA 6 A
- Page 360 and 361: WVDP Phase 1 CSAPFigure F.10 WMA 6
- Page 362 and 363: WVDP Phase 1 CSAPGP10208BH-19A137Cs
- Page 364 and 365: WVDP Phase 1 CSAPFigure F.14 WMA 6
- Page 366 and 367: WVDP Phase 1 CSAPFigure F.16 WMA 6
- Page 368 and 369: WVDP Phase 1 CSAPNFS Shallow Specia
- Page 370 and 371: WVDP Phase 1 CSAPLiquid that collec
- Page 372 and 373: WVDP Phase 1 CSAPeastern ends of th
- Page 374 and 375: WVDP Phase 1 CSAPG.4.3 Drainage Are
- Page 376 and 377: WVDP Phase 1 CSAPPhase 1 will not a
- Page 378 and 379: WVDP Phase 1 CSAPG.9.3 Surface Soil
- Page 380 and 381: WVDP Phase 1 CSAPoIf any 0-15 cm in
- Page 382 and 383: WVDP Phase 1 CSAP• Three location
- Page 384 and 385: WVDP Phase 1 CSAP• Backfill assoc
- Page 386 and 387: WVDP Phase 1 CSAPTable G.2 Sample N
- Page 388 and 389: WVDP Phase 1 CSAPFigure G.2 WMA 7 w
- Page 390 and 391: WVDP Phase 1 CSAPFigure G.4 Subsurf
- Page 392 and 393: WVDP Phase 1 CSAPFigure G.6 WMA 7 A
WVDP Phase 1 CSAP• Three locations along each piece of buried infrastructure within WMA 6 will be trenched.These locations will be selected to maximize the possibility that contamination will beencountered (e.g., locations where historical or current GWS data indicate surfacecontamination exists). During excavation, exposed soils will be monitored by scans forevidence of elevated gross activity. The purpose of this sampling is to evaluate thepresence of contamination associated with buried infrastructure. [required]oIf elevated readings are encountered below a depth of 1 m, soils exhibiting thehighest levels of gross activity will be sampled and analyzed.oIf elevated readings are not encountered below a depth of 1 m, a samplerepresentative of soils deeper than 1 m will be collected. In the case ofinfrastructure that did not carry waste or wastewater, the sample will be fromsoils immediately above the line. In the case of infrastructure that did carry wasteor wastewater, the sample will be from soils immediately beneath the line.• If contamination above background conditions is encountered at any selected location,trenching will continue to depth until background conditions are observed. An additionalsample will be collected from the base of the trench to verify background conditions. Thepurpose is to vertically bound observed contamination. [contingent]• If buried infrastructure soil sampling identifies contamination impacts greater thanbackground, biased sampling will continue following the line until at least twoconsecutive locations yield soil samples below surface soil CG w requirements. Locationspacing will be based on engineering judgment, including the geometry of the line, thelevel of contamination encountered, and surface evidence of contamination. The purposeof this sampling is to bound the extent of contamination associated with buriedinfrastructure, as necessary. [contingent]F.9.7Additional ContingenciesSampling and/or GWS data may indicate that contamination exists or extends beneath surfacescurrently covered by existing structures, concrete, asphalt, or gravel. In this case, “surface soil”will be defined as soil immediately beneath the cover. If sampling or GWS data indicate thatRev. 1 F-19