Dames & Moore, 1999 - USDA Forest Service

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' (Buckskin Formation) NOTE: This cross section is generally parallel to ore body and 1500 level ventilator tunnel Ventilator Pcrlal ' SOURCES: Northwest Geophysical Associates, 1997, Seismic Line A-A', 6-6: Holden Mine Geophysical Investigation. Youngberg. E. A., Wdson, 1: L., 1952, The Geology of the Holdeo Mine, Economic Geology, V. 47, No. 1, 1952, pp. 1-12. W.A.B., 1942, Detailed Surface Geology Map, Howe Sound Co., Chekn Division F. E., H.B.S., 1938, Geology of 1500 Level, Howe Sound Company Chelaii Division Howe Sound Co, 1957, Holden Mine, East West Section Ventilator Tunnel LEGEND 800 Level Portal Backfilled stope vA Dike -.-.-.- Transform fault 700 Level Portal 550 Level Portal Intersection with Cross Section 1-11 I ,-- 300 Level Portal 1 0 50G 1,000 i i' I Approximate Horizontal and Vertical Scale in Feet Continues Approximately 8.000' Figure 4.1 -5c HOLDEN MINE SITE DAMES & MOORE i CROSS SECTION H-H' A OAMES 6 MOORE GROUP COMPANY , Holden Mine RIIFS ~ oNO. b 17693-005-019 Draft Final RI Report
Page 1 and 2:
I DAMES & MOORE A DAMES & MOORE GRO
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DAMES & MOORE .. A DAMES 8 MOORE GR
Page 6 and 7:
INTRODUCTION The olden Mine was ope
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The Forest Service implemented site
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Remainder of Year - After the sprin
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' Water Portal Drainage quality mea
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Groundwater discharge from the tail
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Trout An intermediate potential ris
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Windblown Tailings Material The ero
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Lucerne Bar Sampling Additional sed
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3.0 REMEDIAL INVESTIGATION METHODOL
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... 5.3 SURFACE WATER .............
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8.3.3 Surface Water ...............
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Table 4.6-3A - Table. 4.6-4 - Table
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Table 7.1-1 - Table 7.1-5 - Table 7
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Table 7.2.4-2D - Table 7.2.4-3 - Ta
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Figure 4.2-2 - Figure 4.2-3 - Figur
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Figure 5.3-9 - Figure 5.3-10 - Figu
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Figure 6.5-9 - Figure 6.5-10 - Figu
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ACRONYM AND ABBREVIATION GLOSSARY @
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1.0 INTRODUCTION The .Holden Mine i
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sediment reference location" includ
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Volumes 11,111. and IV Section 4.0
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. . . . .................. ........
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2.1 SITE DESCRIPTION The Holden Min
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~:\wpdaca\005\rc~o~iol&n-2~i~-0.dae
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2.5 SUMMARY OF ISSUES OF POTENTIAL
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G:\tupdata\005\repomUloldm-t\riU-O.
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1986 1988 1988 1989 Science Applica
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piemmeter water samples as Service.
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G:\~at~\00SLeporuUIoIden-2~V4.d0~ 1
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SOURCE: Wtem et al., 1992 USGS Chda
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3.0 REMEDIAL INVESTIGATION METHODOL
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wilderness boundary with the intent
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The test pits were excavated utiliz
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were transferred to AutoCAD maps of
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3.2.1 Streamflow Suweys Streamflow
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Site. Samples collected for dissolv
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' chromium, copper, iron, lead, mag
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elevated metals based on field scre
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Wolman pebble counts), occurrence a
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Assessment by Mining Consultant The
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discussions of the 1992 data have n
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VelocityDepth - influences benthic
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To the extent practical, electrosho
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Proportion of individuals as top ca
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provide adequate data to cany forwa
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3.1 1 TASK 11 - DATA EVALUATION 3.1
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3.11.4.2 Two-Dimensional Groundwate
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TABLE 3.0-1 KEY OF SITE FEATURES 8
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Page 104 and 105:
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TABLE 3.2-1 ANALYTICAL PROGRAM FOR
Page 108 and 109:
TABLE 3.2.2 ANALYnCAL PROORAM FOR G
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TABLE 1.24 ANALYTICAL PROGRAM FOR G
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TABLE 3.24 ANALmCAL PROORAM FOR GRO
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SOURCE: USGS Topographic Map, State
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- Figure 3.0-3 DAMES & MOORE HOLDEN
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Figure 3.1-2 DAMES & MOORE ! RI SOI
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Fill (2) Vent (1) SOURCE: Base map
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SOURCE: Base map information from U
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SOURCE: WIteffi et a/., 1992 USGS C
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DAMES & MOORE Figure 3.4-2 FLOCCULE
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i I i .4 i ,i i i\ i '.\ i \ \ i I
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4.1.2 Site Surface Features Referri
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Hydroelectric Plant Electrical powe
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Water seepage emanates, in the spri
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'7 ~t the Site, approximately mid-w
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system delineated by ditches and re
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Section I-I' and shows the six tunn
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The uppermost stopes within the min
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make up the earth's surface. The st
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silver, and included 34,000 tons of
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strength was determined by Hart Cro
Page 155 and 156:
gravels are variable in thickness a
Page 157 and 158:
wetlands and adjacent to Railroad C
Page 159 and 160:
Several faults have been mapped in
Page 161 and 162:
the coefficient of Friction. Geomor
Page 163 and 164:
The groundwater levels used for the
Page 165 and 166:
Tailings pile 3 is situated near th
Page 167 and 168:
vertical extent of the underground
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from the roof, then evaluating the
Page 171 and 172:
4.2.8 Potential Borrow Source Areas
Page 173 and 174:
for good quality riprap would neces
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May and June, which coincide with t
Page 177 and 178:
Rating Calculations Referring to Ta
Page 179 and 180:
with little or no braiding. Upstrea
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Discharge in Railroad Creek was mon
Page 183 and 184:
model predicted a 100-year flood at
Page 185 and 186:
The data logger, or transducer, was
Page 187 and 188:
submerged at high water levels. Flo
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this, it is possible that the snow
Page 191 and 192:
4.3.5 Basin Average Climatic Water
Page 193 and 194:
surface erosional features provide
Page 195 and 196:
* The D50 equation is obtained from
Page 197 and 198:
effect of a 0.05-foot stage increas
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discussed in' Section 6.8.2 of this
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Observations During Aquatic snorkel
Page 203 and 204:
covers limited portions of the Site
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Bedrock Bedrock underlies the entir
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high as 0.1 to 0.2 feet per foot (F
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Generalized Site-Wide Groundwater R
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4.4.3.5 Groundwater Uses Groundwate
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Reach 1 Since there are no observed
Page 215 and 216:
evaluated on the basis of judgment
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and only started flowing afier seve
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interceptor ditches likely carry pr
Page 221 and 222:
The inflow of groundwater in the fo
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Accuracy The accuracy of the bedroc
Page 225 and 226:
aquifer from the portal drainage, o
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Reference Reaches RC-10. Railroad C
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accessed, including the RM-3 "Dan's
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The banks are relatively nonvegetat
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Ratio of Shredder Functional Feedin
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without scrapers and organisms requ
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present at RC-6, RC-I, RC-3, SFAC-I
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and stumps with bark piles surround
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Tailings Piles A flock of violet-gr
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4.6.3 Threatened or Endangered Spec
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Background Information Grizzly bear
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anadromous populations occurring in
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Creek drainage, they are more commo
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R16E S7). These species include an
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
TABLE 4.1 -1 KEY OF SITE FEATURES 8
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Pitchblende Sericite Biotite Source
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TABLE 4.2-2a EROSION POTENTIAL RANK
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TABLE 4.2-4 RIP-RAP CONDITION RANKI
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TABLE 4.24 BORROW SOURCE EVALUATION
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TABLE 4.3-1 AVERAGE MONTHLY FLOW PE
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TABLE 4.33 AVERAGE MONTHLY POTENTIA
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TABLE 4.3& SURFACE WATER FIELD PARA
Page 273 and 274:
TABLE 4.3da SURFACE WATER flELD PAR
Page 275 and 276:
TABLE 4.3-5 MONTHLY STREAMFLOW AVER
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NA = not measured NF = no flow S =
Page 279 and 280:
TABLE 4.34b AVERAGE MONTHLY WATER B
Page 281 and 282: Station RC- I RC-4 RC-9 Copper Cree
Page 283 and 284: Hydrostratigraphic Unit SoilIFill C
Page 285 and 286: TABLE 4.4-2 GROUNDWATER FIELD PARAM
Page 291 and 292: Stream Reach RC-4 to RC-7 RC-7 to R
Page 293 and 294: TABLE 4.4-6 RESULTS OF OCTOBER 1998
Page 295 and 296: Seep SP-8 was observed flowing in l
Page 297 and 298: TABLE 4.448 SEEPAGE FIELD PARAMETER
Page 299 and 300: TABLE 4.4- SEEPAGE FIELD PARAMETERS
Page 301 and 302: TABLE 4.4-9 REACH 1 SITE-SPECIFIC W
Page 303 and 304: Habitat Variable Stream Velocity an
Page 305 and 306: a TABLE 4.6-2A BENTHIC MACROINVERTE
Page 307 and 308: TABLE 4.6-2C DISTRIBUTION FIT FOR M
Page 309 and 310: TABLE 4.6-3 TROUT POPULATION ESTIMA
Page 311 and 312: Date September 9 September 10 Septe
Page 313 and 314: TABLE 4.6-6 . HERPETOFAUNA LIKELY T
Page 315 and 316: North-aspect Slope Sharp-shinned ha
Page 317 and 318: ! I TABLE 4.6-10 MAMMAL SPECIES OBS
Page 319 and 320: CLIENT PRI VILECED AND CONFIDENTlA
Page 321 and 322: TABLE 4.6-13 U.S. FOREST SERVICE SU
Page 323 and 324: TABLE 4.6-15 SURVEY AND MANAGE SPEC
Page 325 and 326: . . ; SOURCE: Wen et al., 1992 ,, .
Page 327 and 328: SOURCE: Base mrlp information from
Page 329 and 330: ____------ ---_ SOURCES: Base map i
Page 331: SOURCE: Base map information from U
Page 335 and 336: Scale in Feet HOLDEN MINE SITE UNDE
Page 337 and 338: Scale in Feet Figure 4.1 -8 HOLDEN
Page 339 and 340: - LEGEND Approximate extent of unde
Page 341 and 342: 1500 Ventilator DAMES & MOORE A DAM
Page 343 and 344: Modified from Washington Wit Power
Page 345 and 346: 3.1 0 1934 Scale in Miles ~ DETAIL
Page 348 and 349: A 6 C D E F G H I .... ............
Page 350 and 351: 0.7 SOURCE: Base map informaticm fr
Page 353 and 354: LEGEND 0 Allwiumlreworked till Soil
Page 355 and 356: NOTE: This cross section is general
Page 357 and 358: Holden Mnes Seled Bonng Sm Valuesfr
Page 359 and 360: 3.28 -. Tailings Pile 3 3.2' Static
Page 361 and 362: Holden Mines RI@S File Name G:\l769
Page 363 and 364: -- D.7 D. 8 D. 9 E.0 SOURCE: Base m
Page 365 and 366: DAMS & MOORE A DAMES 8 MOORE GROUP
Page 367 and 368: 6 A Figure 4.2-21e HOLDEN MINE SUBS
Page 369 and 370: 'I- - DAMES MOORE ' A DAMES 8 MOORE
Page 373 and 374: DAMES & MOORE TAILINGS PILE #2 Figu
Page 375 and 376: I + Stehekin River I I + Entiat Riv
Page 377 and 378: DAMES & MOORE A DAMES 6 MOORE GROUP
Page 379 and 380: ' - DAMES & MOORE A OAMES 6 MooRE G
Page 381 and 382: i SOURCE: Walters eta/.. 1992 . , .
Page 383 and 384:
SOURCE: RC-4 discharge data from Da
Page 387 and 388:
3/3/98 4/22/98 Date Figure 4.3-7a D
Page 389 and 390:
LEGEND SP14 Seep sample location P-
Page 391 and 392:
SOURCE: Base map information frwn U
Page 394 and 395:
LEGEND ..-.-.-.-.- Freewater surfac
Page 396 and 397:
LEGEND ..-.-.-.-.- Freewater surfac
Page 399 and 400:
Page 402:
' SOURCE: Base map inlbrmatim from
Page 405 and 406:
3200 3195 -- 3190 -. 3185 .- 3180 .
Page 408 and 409:
Approximate Scale in Feet SITESPECI
Page 411 and 412:
v v 1 f * Y Railroad Creek Apparent
Page 413 and 414:
DAMES & MOORE A aAMEs h MOORE CROUP
Page 416 and 417:
' SOURCE: Base map inlbrmatiw, from
Page 418 and 419:
SOURCE: Base map informalion from U
Page 420:
@ DAMES & MOORE A DAMEs 6 MOORE GRO
Page 424 and 425:
5.0 NATURE AND EXTENT OF CONTAMINAT
Page 426 and 427:
Area background values for arsenic,
Page 428 and 429:
I There are no promulgated federal
Page 430 and 431:
greater than two times the 90' perc
Page 432 and 433:
PCOCs in soil at the maintenance ya
Page 434 and 435:
concentrations were not above MTCA
Page 436 and 437:
PCOCs in soil and tailings are furt
Page 438 and 439:
Creek diversion, and Copper Creek.
Page 440 and 441:
Set 1B: RI stations located in Hold
Page 442 and 443:
5.3.1.2 Area Background Compared to
Page 444 and 445:
The water quality data collected fr
Page 446 and 447:
minimal. The data also justified th
Page 448 and 449:
detected at RC-4 with the exception
Page 450 and 451:
Organics TPH and PCBs were analyzed
Page 452 and 453:
RC-8 during September did not conta
Page 454 and 455:
In general, concentrations in the u
Page 456 and 457:
The data collected at P-5 were comp
Page 458 and 459:
.? ) ,~@ .. '. ..,.. r....,. ..,,"
Page 460 and 461:
5.3.8 Lake Chelan 5.3.8.1 Historica
Page 462 and 463:
considered as part of the groundwat
Page 464 and 465:
5.4.2 Site Groundwater Quality The
Page 466 and 467:
sample was not collected during the
Page 468 and 469:
I Concentrations of aluminum, cadmi
Page 470 and 471:
. < The data from seeps SP-1 and SP
Page 472 and 473:
collected as these seeps were not f
Page 474 and 475:
SP-25 One sample was collected in M
Page 476 and 477:
Seep samples were collected at SP-5
Page 478 and 479:
5.4.4 Groundwater Summary Groundwat
Page 480:
Ecology's FSQVs. The reference conc
Page 483 and 484:
Page 485 and 486:
Page 487 and 488:
Page 489 and 490:
TABLE 5.1-1 PRELIMINARY CHEMICAL SP
Page 491 and 492:
TABLE 5.2-1 SUMMARY OF RI SOlL ANAL
Page 493 and 494:
TABLE 5.2-2 SUMMARY OF 1998 BACKGRO
Page 495 and 496:
TABLE 5.24 SUMMARY OF HISTORICAL TA
Page 497 and 498:
TABLE 5.2-5 SUMMARY OF RI TAILINGS
Page 499 and 500:
TABLE 5.2-5 SUMMARY OF RI TAILINGS
Page 501 and 502:
TABLE 5.3-1 SURFACE WATER AREA BACK
Page 503 and 504:
Page 505 and 506:
Page 507 and 508:
TABLE 5.33 Arsenic Data Points, Bac
Page 509 and 510:
TABLE 5.35 Cadmium Data Points, Bac
Page 511 and 512:
TABLE 5.3-7 Copper Data Points. Bac
Page 513 and 514:
TABLE 5.3-9 Lead Data Points. Backg
Page 515 and 516:
TABLE 5.3-11 Manganese Data Points.
Page 517 and 518:
TABLE 5.3-1 3 Silver Data Points. B
Page 519 and 520:
TABLE 5.3-15 Statistical Summary -
Page 521 and 522:
TABLE 5.3-17 , Statistical Summary
Page 523 and 524:
TABLE 5.519 STATION R Cl AND PROXIM
Page 525 and 526:
-- TABLE 5.3-19 STATION RC-1 AND PR
Page 527:
TABLE 5.3-20 STATION RG7. N O PROXU
Page 530 and 531:
TABLE 5.3-21 STATION RG3 AND PROXlh
Page 533 and 534:
TABLE 5.3-22 SUMMARY OF RI WATER QU
Page 535 and 536:
h:\holden\draR final rirptS-5Uables
Page 537 and 538:
TABLE 5.3-24 SUMMARY OF SURFACE WAT
Page 539 and 540:
Page 541 and 542:
Page 543 and 544:
TABLE 5.1-28 SUMMARY OF RI WATER QU
Page 545 and 546:
TABLE 6.529 SUMMARY OF RI WATER QUA
Page 547 and 548:
TABLE 5.340 SUMMARY OF RI PORTAL DR
Page 549 and 550:
TABLE 5.3-3Oa SUMMARY OF RI WATER Q
Page 551 and 552:
h:\holdenWratl final rirpW-5\Tables
Page 554:
TABLE 5.333 SUMMARY OF HISTORICAL C
Page 557 and 558:
h.VloldenUrafi final rirpt\S5ATable
Page 559 and 560:
I I. TABLE 5.3-36 SUMMARY OF WATER
Page 561 and 562:
TABLE 5.348 , SUMMARY OF WATER QUAL
Page 563 and 564:
TABLE 5.4-1 SUMMARY OF RI GROUNDWAT
Page 565 and 566:
TABLE 5.4-2 SUMMARY OF RI SEEPAGE W
Page 567 and 568:
TABLE LM SUMMARY OF RI SEEPAGE WATE
Page 569 and 570:
TABLE 5.4-2 SUMMARY OF RI SEEPAGE W
Page 571 and 572:
TABLE 5.43 HISTORICAL SUMMARY OF GR
Page 573 and 574:
TABLE 5.64 HISTORICAL SUMMARY OF SE
Page 575 and 576:
TABLE 5.4-4 HISTORICAL SUMMARY OF S
Page 577 and 578:
TABLE 5.46 SUMMARY OF INTERSTITAL P
Page 579 and 580:
TABLE 5.47 WENllAL COMPOUNDS OF CON
Page 581 and 582:
TABLE 5.54 SUNtMARY OF HlSTORlW DAT
Page 583 and 584:
TABLE 5.5-3 SUMMARY OF FALL 1998 SE
Page 585 and 586:
TABLE 5.7-1 HISTORICAL AIR MONITORI
Page 587 and 588:
a 0 S 9 : t "f' c i Crown Point LEG
Page 592 and 593:
0.7 D.8 - D.9 SOURCE: Base map inlb
Page 594 and 595:
Job NO. 17693-005-019 Draft Final R
Page 596 and 597:
Date Figure 5.3-6 DAMES & MOORE - .
Page 598 and 599:
Date Figure 5.3-8 DAMES & MOORE - 1
Page 600 and 601:
DVVES & MOORE A DM a MOORE GROUP CO
Page 602 and 603:
1800 -.- May-Iron --- September-Iro
Page 604:
DAMES & MOORE A DAMES 6 MOORE GROUP
Page 608 and 609:
Page 612 and 613:
Page 614:
Job NO. 17693-005-01 9 Draft Final
Page 629:
E.5 D. 9 E.0 ~ . i 8 E.2 E.3 E.4 B
Page 635 and 636:
0.7 SOURCE: Base map inbmbbn from U
Page 637 and 638:
Job NO. 17693-005-01 9 Lake Chelan
Page 639 and 640:
6.0 TRANSPORT AND FATE OF COMPOUNDS
Page 641 and 642:
Quartz-rich layers of 40 percent qu
Page 643 and 644:
Crystalline crusts were observed in
Page 645 and 646:
Evidence of significant surface and
Page 647 and 648:
• Predicted saturation indices (S
Page 649 and 650:
Another iron sulfide mineral at the
Page 651 and 652:
If water flow is available to disso
Page 653 and 654:
pH Control on Precipitation/Dissoln
Page 655:
summer. Efflorescence occurs when w
Page 658 and 659:
L X m IX WNU UVXdWd I l:V!6661 'LZ
Page 660 and 661:
uffering by other magnesium-based m
Page 662 and 663:
The geochemistry of Site waters is
Page 664 and 665:
Water Flow . The mine drainage area
Page 666 and 667:
prediction. Therefore, inspection o
Page 668 and 669:
@ I'fOdM IX WNId UVXd.r(d 11:*!6661
Page 670 and 671:
.moj iq%!m saieuoqm:, laddo:, ietp
Page 672 and 673:
the vicinity with differences proba
Page 674 and 675:
pathway for water to infiltrate int
Page 676 and 677:
The chemistry of these monitoring w
Page 678 and 679:
'z-38 ol aAye1a.i suoy!pum MOU a~!l
Page 680 and 681:
concentrations, but statistically t
Page 682 and 683:
lXOd3X n! WNU .LWW%Vd I I:O:6661 'L
Page 684 and 685:
Infiltration of water from the port
Page 686 and 687:
3, indicating buffering by iron hyd
Page 688 and 689:
control and buffering by alumino-si
Page 690 and 691:
6.10 CONCLUSIONS Based on the resul
Page 692 and 693:
Page 694 and 695:
Page 696 and 697:
Page 698 and 699:
CLIENT PRIVILEGED AND CONFIDEhTTBL
Page 701 and 702:
TABLE 6.6-3 LOADING CALCULATIONS -
Page 703 and 704:
i SOURCE: Walten et al., 1992 USGS
Page 705:
NOTE: This cross section is general
Page 708 and 709:
; SOURCE: Willten et al.. 1992 f ..
Page 710 and 711:
SOURCE: SRK Summer \ Fall Winter Sp
Page 712 and 713:
SOURCE: SRK Oxidant I H20 (transpor
Page 715 and 716:
SOURCE: Ganels an Christ, 1965 I A
Page 718 and 719:
DAMES & MOORE A DAMES d MOORE GROUP
Page 720 and 721:
DAMES & MOORE A DAMES a MOORE GROUP
Page 722 and 723:
' Tailings Pile 1 + Tailings Pile 2
Page 724 and 725:
Page 726:
DAMES & MOORE o RC 1 RC 4 A RC7 x R
Page 729 and 730:
,. ._ . ... . . _ .....,..,... " ..
Page 731 and 732:
a 0) - E V - DAMES & MOORE A DAMES
Page 733 and 734:
- .- a 9 i C 0 SOURCES: SRK (Bucksk
Page 735 and 736:
Upslope Surface Water Runm and - Di
Page 737:
SOURCE: SRK $ Air Flow 8-b Water Fl
Page 740 and 741:
0 Acidity Addition IXMES & MOORE Tr
Page 742 and 743:
A RC7 1 0 RC5 , ' Tailings Pile 1 +
Page 745 and 746:
DAMES & MOORE Surface Water Runon a
Page 747 and 748:
Note: Someflow lost into plane of f
Page 749 and 750:
Notes: Runon and Direct Precipitati
Page 751 and 752:
Approximate Scale in Feet NOTES: NS
Page 753 and 754:
SOURCE: SRK - - L DAMES & MOORE A D
Page 755 and 756:
SOURCE: SRK 1000000 100000 10 - --
Page 757 and 758:
Subsection 6.4 presents general Sit
Page 759 and 760:
Other geologic units in the deposit
Page 761 and 762:
snowmelt on the adjacent valley slo
Page 763 and 764:
calcite were being dissolved, one i
Page 765 and 766:
63.1.1 Sulfide Mineral Oxidation a,
Page 767 and 768:
The acid in the water can be remove
Page 769 and 770:
a Co-precipitation. a Sorption. 633
Page 771 and 772:
Eh Control on Precipitatioa/Dissolu
Page 773 and 774:
Weathering of iron-bearing sulfide
Page 775 and 776:
zinc sulfate salts. Zinc and sulfat
Page 777 and 778:
uff~ng by other magnesium-based min
Page 779 and 780:
The geochemistry of Site waters is
Page 781 and 782:
. . .. . Water Flow The mine draina
Page 783 and 784:
prediction. Therefore, inspection o
Page 785 and 786:
In the fall, groundwater flow is re
Page 787 and 788:
One sample (W-1, May 2, 1998) of th
Page 789 and 790:
the vicinity with differences proba
Page 791 and 792:
pathway for water to infiltrate int
Page 793 and 794:
The chemistry of these monitoring w
Page 795 and 796:
the surface waters. Some of the dis
Page 797 and 798:
concentrations, but statistically t
Page 799 and 800:
' iron added is precipitated and is
Page 801 and 802:
Infiltration of water from the port
Page 803 and 804:
3, indicating buffering by iron hyd
Page 805 and 806:
Upstream of the tailings piles, sig
Page 807 and 808:
Source controls reflect the differe
Page 809 and 810:
,,, .a Lucerne TAELE 6.0-1 KEY OF S
Page 811 and 812:
Page 813 and 814:
Page 815 and 816:
CLIENT PRIVrLEGED AND CONFIDENTfiL
Page 817 and 818:
Tabhu-2 ~C.~-R.~Cm15SaptnnbsrlW7 no
Page 819 and 820:
Table 6.64 Lo8dlng C.lculatiom - Ad
Page 821:
Job NO. 17693-005-019 Draft Final R
Page 825 and 826:
SOURCE: Wters et al., 1992 ...; ...
Page 827 and 828:
SOURCE: SRK Oxidant DAMES & MOORE A
Page 829 and 830:
SOURCE: SRK Summer Fall Winter (rai
Page 832:
I SOURCE: Gamls a& Chfist, 1965 P A
Page 836 and 837:
0 RC 1 RC4 A RC7 X RC2 0 RC5 Tailin
Page 838 and 839:
0 RC 1 RC4 A RC7 X RC2 0 RC5 Tailin
Page 840 and 841:
1 Sulfate (mrnoleaR) Tailings Pile
Page 842 and 843:
0 RC 1 '0 RC4 A RC7 X RC2 0 RC5 + T
Page 845 and 846:
ORC 1 ORC 4 ARC 7 XRC 2 ORC 5 Taili
Page 847 and 848:
ORC 1 ORC 4 ARC7 XRC 2 ORC5 Tailing
Page 849 and 850:
SOURCES: SRK H Flushing Reduced Som
Page 852 and 853:
t upslope Surface Water Rum and Dir
Page 854 and 855:
SOURCE: SRK Summer $ Air Flow ~-@ W
Page 856 and 857:
D. 7 0.8 D. 9 E.0 E. 1 E.2 E.3 E.4
Page 858 and 859:
0 RC 1 0 RC4 A RC7 1 X RC2 / 0 RC5
Page 861 and 862:
1 Surface Water Runon and Direct Pr
Page 863 and 864:
Infiltration of Snowmelt and Interm
Page 866:
Notes: Surface Water. Runon and Dir
Page 870 and 871:
Page 872 and 873:
SOURCE: SRK 10 I I I I I r I Figure
Page 874 and 875:
effects. The same constituent may e
Page 876 and 877:
Surface Soil For the purposes of th
Page 878 and 879:
7.1.2.2 Statistical Analysis of Dat
Page 880 and 881:
The completeness of potential expos
Page 882 and 883:
Sources The mining related waste co
Page 884 and 885:
' Ingestion of Fish. Some ingestion
Page 886 and 887:
Frequency of Detection If a constit
Page 888 and 889:
corresponding grouping. The Method
Page 890 and 891:
' Wilderness Boundary Two soil samp
Page 892 and 893:
did not have health-based MTCA Meth
Page 894 and 895:
Railroad Creek Adiacent to Site The
Page 896 and 897:
7.1.4 Site-specific Human Health Ri
Page 898 and 899:
USEPA's Weight-of-Evidence Carcinog
Page 900 and 901:
ingestion of Water Screening criter
Page 902 and 903:
Inhalation of Pdculates BR = Breath
Page 904 and 905:
Surface Soil Cancer risks and nonca
Page 906 and 907:
child's daily ingestion rate (1 lit
Page 908 and 909:
Lead was present in the maintenance
Page 910 and 911:
evaluated by screening constituent
Page 912 and 913:
stressors present to the values res
Page 914 and 915:
The most visible large game animals
Page 916 and 917:
Concentrations of PCOCs in other me
Page 918 and 919:
7.2.2.6 Conceptual Site Model The C
Page 920 and 921:
Aquatic Habitats Surface Water The
Page 922 and 923:
arely,,(2) occasionally, and (3) fr
Page 924 and 925:
it was screened against soil criter
Page 926 and 927:
Small Mammals TRVs for representati
Page 928 and 929:
The food ingestion rate was estimat
Page 930 and 931:
The food ingestion rate for placent
Page 932 and 933:
- Mink Mink are carnivores which fe
Page 934 and 935:
7.2.4.1 Risk Cbaracterization for W
Page 936 and 937:
were no more toxic than sediments c
Page 938 and 939:
- Plants Hazard quotients for plant
Page 940 and 941:
deer mice fed only on plants growin
Page 942 and 943:
Robins drink only the UCL concentra
Page 944 and 945:
Finally, the analysis performed for
Page 946 and 947:
equilibrium partitioning have been
Page 948 and 949:
• Trout may possibly be at risk d
Page 950 and 951:
TABLE 7.0-1 KEY OF SITE FEATURES ME
Page 952 and 953:
Page 954 and 955:
Page 956 and 957:
TABLE 7.q-A OFF-SITE SOIL CHEMICAL
Page 958 and 959:
TABLE 7.14 STATISTICAL ANALYSIS AND
Page 960 and 961:
TABLE 7.1C STATISTICAL NALUAnON AND
Page 962 and 963:
TABLE 7.1-C STATISTICAL EVALUATION
Page 964 and 965:
TABLE 7.14 COMPARISON OF SEDIMENTAR
Page 966 and 967:
7 TABLE 7.14) COMPARISON OF SEDIMEN
Page 968 and 969:
-hluo sanlm pawpp uo paseq s! ue!pa
Page 970 and 971:
H Wolden\draR hnal rirpt\S-i\HhraUa
Page 972 and 973:
H.Wolden\drafl hnal nrpt\S_7WhraUab
Page 974 and 975:
TABLE 7.1-F STATISTICAL ANALYSIS AN
Page 977 and 978:
Page 979 and 980:
TABLE 7.1-F STATISTICAL ANALYSIS AN
Page 982 and 983:
H-Wolden\draR final rirptS-7\Hhra\T
Page 984 and 985:
H.\Holden\drafl final rirpt\S-7Whra
Page 986 and 987:
Page 988 and 989:
TABLE 7.1H STATISTICAL ANALYSIS AND
Page 990 and 991:
TABLE 7.144 STATISTICAL ANALYSIS AN
Page 992 and 993:
Page 994 and 995:
TABLE 7.14 STATlSnCN ANNYSS AND COM
Page 996 and 997:
Page 998 and 999:
TABLE 7.1 -K MEAN METAL CONCENTRATI
Page 1000:
TABLE 7.1-2 METHOD A LEVELS USED IN
Page 1003 and 1004:
TABLE 7.1-5 CARCINOGEN CLASSIFICATI
Page 1005 and 1006:
TABLE 7.1-7 HUMAN HEALTH SCREENING
Page 1007 and 1008:
TABLE 7.1-9 HUMAN HEALTH XREENING O
Page 1009:
Page 1012 and 1013:
TABLE 7.1-14 HUMAN HEALTH SCREENlNG
Page 1014 and 1015:
TABLE 7.1-16 HUWlAN HEALTH SCREENIN
Page 1016 and 1017:
. . . . -- m3zri .. ........ . . .
Page 1018 and 1019:
TABLE 7.1-20 HUMAN HEALM SCREENING
Page 1020 and 1021:
Page 1022 and 1023:
Page 1024 and 1025:
Page 1026 and 1027:
Page 1028 and 1029:
*-. - -. -. -- .- ..~ -- .- .- . ..
Page 1031 and 1032:
Page 1033 and 1034:
TABLE 7.135 HUMAN HEALTH SCREENING
Page 1035 and 1036:
. TABLE 7.1 -37 EXPOSURE CONCENTRAT
Page 1037 and 1038:
TABLE 7.1-JS EXPOSURE FACTORS USED
Page 1039 and 1040:
TABLE 7.1-41 COMPARISON OF SITESPEC
Page 1041 and 1042:
TABLE 7.1-43 EVALUATION OF CUMULATI
Page 1043 and 1044:
Constituent Beryllium Cadmium Acute
Page 1045 and 1046:
Constituent Lead Manganese Molybden
Page 1047 and 1048:
Constituent Diesel Fuel, Light Weig
Page 1049 and 1050:
TABLE 7.2.2-1 A STATISTICAL ANALYSI
Page 1051 and 1052:
TABLE 7.2.2-181 STATISTICAL ANALYSI
Page 1053 and 1054:
U . PersMler was ambfzed fa. W rd d
Page 1055 and 1056:
TABLE 7.2.2-1C COMPARISON OF SEDIME
Page 1057 and 1058:
TABLE 7.2.2-lC COMPARISON OF SEDIME
Page 1059 and 1060:
TABLE 7.2.2-1E STATISTICAL ANALYSIS
Page 1061 and 1062:
TABLE 7.2.2-1F STAllSTlCAL ANALYSIS
Page 1063 and 1064:
TABLE 7.2.2-1F STATISTICAL ANALYSIS
Page 1065 and 1066:
TABLE 7.2.2-IF STAnSTICAL ANALYSIS
Page 1067 and 1068:
TABLE 7.2.2-IF STATISTICAL ANALYSIS
Page 1069 and 1070:
TABLE 7.22-lG STATISTICAL ANALYSIS
Page 1071 and 1072:
TABLE 7.2.2-1 H STATISTICAL ANALYSI
Page 1073 and 1074:
TABLE 7.2.2-1H STATISTICAL ANALYSIS
Page 1075 and 1076:
Page 1077 and 1078:
Page 1079 and 1080:
Cascades frog Ram cascadoe TABLE 7.
Page 1081 and 1082:
TABLE 7.2.2-3 TOXICITY BENCHMARKS F
Page 1083 and 1084:
italics - highest value 1 - adjuste
Page 1085 and 1086:
TABLE 7.2.3-2A SCREENING OF COCS FO
Page 1087 and 1088:
italics- highes~ value TABLE 7.2.3-
Page 1089 and 1090:
I TABLE 7.23-4A TOXICITY REFERENCE
Page 1091 and 1092:
metal Cadmium Copper Lead Zinc TABL
Page 1093 and 1094:
TABLE 7.2.3-7 DOSES TO AMERICAN DIP
Page 1095 and 1096:
TABLE 7.2.3-9 DOSES TO MINK CONSUMI
Page 1097 and 1098:
Flesh Soil Plants G:\wpdata\M)S\rep
Page 1099 and 1100:
TABLE 7.2.3-13 DOSES TO DEER MICE H
Page 1101 and 1102:
a H:\Holden\Drafl TABLE 7.2.3-15 DO
Page 1103 and 1104:
TABLE 7.2.3-17 DOSES TO AMERICAN RO
Page 1105 and 1106:
' TABLE 7.2.4-la HAZARD QUOTIENTS F
Page 1107 and 1108:
TABLE 7.2.4-2C HAZARD QUOTIENTS FOR
Page 1109 and 1110:
TABLE 7.2.4-3 HAZARD QUOTIENTS FOR
Page 1111 and 1112:
Page 1113 and 1114:
TABLE 7.2.4-7a HAZARD QUOTIENTS FOR
Page 1115 and 1116:
Page 1117 and 1118:
TABLE 7.2.4-11a HAZARD QUOTIENTS FO
Page 1119 and 1120:
TABLE 7.2.4-13a HAZARD QUOTIENTS FO
Page 1121 and 1122:
~ob NO. 17693-005-019 Holden Mine R
Page 1123 and 1124:
DNWS & MOORE A DAMES h MOORE GROUP
Page 1125 and 1126:
SOURCE RELEASE EXPOSURE MECHANISM M
Page 1127 and 1128:
Figure 7.2-1 Conceptual Site Model
Page 1129 and 1130:
which includes protected natural re
Page 1131 and 1132:
The dense glacial till overlying th
Page 1133 and 1134:
Tailings pile 1 was utilized as a m
Page 1135 and 1136:
8.2.3 Surface Water 8.2.3.1 Railroa
Page 1137 and 1138:
covered with flocculent. The floccu
Page 1139 and 1140:
It is likely that much of the water
Page 1141 and 1142:
8.2.3.7 Aquatic Reference Reaches T
Page 1143 and 1144:
Mill. Mine Sup~ort and Waste Rock P
Page 1145 and 1146:
maintenance building, which also ho
Page 1147 and 1148:
The calculated total numbers of fis
Page 1149 and 1150:
Reference Reaches - Upstream Railro
Page 1151 and 1152:
apparent lack of aquatic toxicity a
Page 1153 and 1154:
8.3 SITE CONTAMINANT CHARACTERIZATI
Page 1155 and 1156:
25 pprn hardness as this is the min
Page 1157 and 1158:
Additionally, the data at P-1 were
Page 1159 and 1160:
8.3.5.2 Lucerne Bar & Stehekin Rive
Page 1161 and 1162:
Comparison of sulfate and aluminum
Page 1163 and 1164:
The abandoned Railroad Creek stream
Page 1165 and 1166:
groundwater levels.are highest in t
Page 1167 and 1168:
SOURCE: USGS Topographic Map. State
Page 1169 and 1170:
DAMES & MOORE A DAMEs a MWRE GROUP
Page 1171 and 1172:
Job NO. 17693-005-019 Figure 8.1 -5
Page 1173 and 1174:
5 SOURCE:! Wters eta/., 1992 i USGS
Page 1175 and 1176:
9.0 CONCLUSIONS AND RECOMMENDATIONS
Page 1177 and 1178:
9.2.4 Component Inflow Sources and
Page 1179 and 1180:
areas and loading to Railroad Creek
Page 1181 and 1182:
At approximately 3 miles downstream
Page 1183 and 1184:
case scenario; however, suitable ea
Page 1185 and 1186:
9.3.4 Maintenance Yard 9.3.5 Lagoon
Page 1187:
: SOURCE: Wters eta/., 1992 _...___
Page 1190 and 1191:
i ,./' i - Creek /.- i i i '. . i '
Page 1192 and 1193:
I 11.0 REFERENCES A&L'Mid West Labo
Page 1194 and 1195:
Brown, H.A., R.B. Bury, D.M. Darda,
Page 1196 and 1197:
e ' Dames & Moore, 1997f. Phase I R
Page 1198 and 1199:
Hall, E.R. and K.R. Kelson. 1959. T
Page 1200 and 1201:
Kilburn, J.E. & S.J. Sutley. 1997.
Page 1202 and 1203:
Mitchell, J.L. 1961. Mink Movements
Page 1204 and 1205:
Peven, C.M.1989. Lake Chelan Spawni
Page 1206 and 1207:
U.S. Department of Interior, Bureau
Page 1208 and 1209:
P a Eastside U.S. Geological Survey
Page 1210 and 1211:
Washington State Department of Ecol
Page 1213 and 1214:
, DAMES DRAFT FINAL Remedial Invest
Page 1215 and 1216:
I June 15,1998 Field QC Samples, Ma
Page 1217 and 1218:
INORGANICS ANALYSIS DATA SHEET Samp
Page 1219 and 1220:
Page 1221 and 1222:
I Date: /a SW-846. MEMORANDUM To: F
Page 1223 and 1224:
June 15, 1998 Surface Water, May 19
Page 1225 and 1226:
Page 1227 and 1228:
Page 1229 and 1230:
INORQANICS ANALYSIS DATA SHEET TOTA
Page 1231 and 1232:
INORGANICS ANALYSIS DATA SHEET TOTA
Page 1233 and 1234:
Page 1235 and 1236:
Page 1237 and 1238:
INORGANICS'ANALYSIS DATA SHEET Samp
Page 1239 and 1240:
Page 1241 and 1242:
Page 1243 and 1244:
Page 1245 and 1246:
Page 1247 and 1248:
Page 1249 and 1250:
Page 1251 and 1252:
Page 1253 and 1254:
Page 1255 and 1256:
Page 1257 and 1258:
cli INORGANICS ANALYSIS DATA SHEET
Page 1259 and 1260:
I@ '.J INORGANICS ANALYSIS DATA SHE
Page 1261 and 1262:
Page 1263 and 1264:
Page 1265 and 1266:
I INORGANICS ANALYSIS DATA SHEET Sa
Page 1267 and 1268:
Page 1269 and 1270:
Page 1271 and 1272:
Page 1273 and 1274:
INORGANICS ANALYSIS DATA SHEET @. S
Page 1275 and 1276:
Sample No: RC-7 Lab Sample ID: W219
Page 1277 and 1278:
Pinal Report Laboratory Analyeia of
Page 1279 and 1280:
Final Report Laboratory Analysis of
Page 1281 and 1282:
@ QA Report - Replicate Analysis QC
Page 1283 and 1284:
I QA Report - Laboratory Control Sa
Page 1285 and 1286:
TOTAL GASOLINE RANGE HYDROCARBONS W
Page 1287 and 1288:
TOTAL DIESEL RANGE HYDROCARBONS WA
Page 1289 and 1290:
I CHAIN-OF-CUSTODY RECORD i 500 Mar
Page 1291 and 1292:
CHAIN-OF-CUSTODY RECORD WHITE COPY-
Page 1293 and 1294:
Final Report Laboratory Analyeie of
Page 1295 and 1296:
QA Report - Method Blank Analysis Q
Page 1297 and 1298:
QA Report - Matrix Spike/Matrix Spi
Page 1299 and 1300:
QA Report - Standard Reference Mate
Page 1301 and 1302:
@ TOTAL GASOLINE RANGE HYDROCARBONS
Page 1303 and 1304:
TOTAL DIBSEL RANGB HYDROCARBONS WA
Page 1305 and 1306:
CHAIN-OF-CUSTODY RECORD WHITE COPY-
Page 1307 and 1308:
@ MEMORANDUM .-. Date: To: From: Su
Page 1309 and 1310:
June 8, 1998 Seep and Portal, May 1
Page 1311 and 1312:
* Page June 8.1998 Seep &d Portal,
Page 1313 and 1314:
INORGANICS ANALYSIS DATA SHEET DISS
Page 1315 and 1316:
INORGANICS ANALYSIS DATA SHEET DISS
Page 1317 and 1318:
Page 1319 and 1320:
Page 1321 and 1322:
Page 1323 and 1324:
Page 1325 and 1326:
Page 1327 and 1328:
Page 1329 and 1330:
Page 1331 and 1332:
Page 1333 and 1334:
Page 1335 and 1336:
Page 1337 and 1338:
Page 1339 and 1340:
Page 1341 and 1342:
Page 1343 and 1344:
Final Report ~aborato-~ Anelyeis of
Page 1345 and 1346:
Final Re~ort - Laboratory L?slysie
Page 1347 and 1348:
Page 1349 and 1350:
QA Report - Matrix.Spike/Matrix Spi
Page 1351 and 1352:
QA Report - Standard Reference Mate
Page 1353 and 1354:
QA Report - Replicate Analyeis QC R
Page 1355 and 1356:
QA Report - Laboratory Control Samp
Page 1357 and 1358:
Page 1359 and 1360:
.. . . . L - , ..- .U ,- Y a 5 ~bm
Page 1361 and 1362:
June 8,1998 Equipment Blank, May 19
Page 1363 and 1364:
Page 1365 and 1366:
METALS ANALYSIS DATA SHEET TOTAL ME
Page 1367 and 1368:
i TMY !-, 7'. O CHAIN-OF-CUSTODY RE
Page 1369 and 1370:
June 15,1998 Low Level Lead, May 19
Page 1371 and 1372:
Sample Results for Dames and Moore
Page 1373 and 1374:
S& -sshc.-rx rotor. n; a 57,m 11‘
Page 1375 and 1376:
Frontier Geosciences Inc. 414 Ponti
Page 1377 and 1378:
June 25, 1998 Ventilator Portal, Ju
Page 1379 and 1380:
Page 1381 and 1382:
Page 1383 and 1384:
INORGANICS ANALYSIS DATA SHEET -TOT
Page 1385 and 1386:
- Date: December 11, 1998 , . . , ,
Page 1387 and 1388:
December 1 1, 1998 Sediment Data, F
Page 1389 and 1390:
, . ' December 1 1, 1998 Sediment D
Page 1391 and 1392:
INORQANICS ANALYSIS DATA SHEET Samp
Page 1393 and 1394:
Page 1395 and 1396:
Page 1397 and 1398:
INORGANICS ANALYSIS DATA SHBBT Samp
Page 1399 and 1400:
INORGANICS ANALYSIS DATA SHEET samp
Page 1401 and 1402:
INORGANICS ANALYSIS DATA SHEET - TO
Page 1403 and 1404:
INOROANICS ANALYSIS DATA SHEET Samp
Page 1405 and 1406:
INORGANICS ANALYSIS DATA SHEET ' Sa
Page 1407 and 1408:
Page 1409 and 1410:
Page 1411 and 1412:
Page 1413 and 1414:
Page 1415 and 1416:
Page 1417 and 1418:
Page 1419 and 1420:
Pinal Report Laboratory Analyeie of
Page 1421 and 1422:
@ Final Report Laboratory Analysie
Page 1423 and 1424:
Final Report Laboratory Analyeie of
Page 1425 and 1426:
Final Report ~aborato-~ Analyeie of
Page 1427 and 1428:
Final Report Laboratory Analyeis of
Page 1429 and 1430:
Final Report Laboratory Analysie of
Page 1431 and 1432:
Final Report Laboratory Analyeis of
Page 1433 and 1434:
Page 1435 and 1436:
QA Report - Replicate Analysis QC R
Page 1437 and 1438:
QA Report - ~ab'oratory Control Sam
Page 1439 and 1440:
a Rosa Environmental & Geotechnical
Page 1441 and 1442:
!q Rosa Environmental Ge6.- -. lcal
Page 1443 and 1444:
i - - ROSA ENVIRONMENTAL & GEOTECHN
Page 1445 and 1446:
- ROSA ENVIRONMENTAL & GEOTECHNICAL
Page 1447 and 1448:
ROSA ENVIRONMENTAL & GEOTECHNICAL L
Page 1449 and 1450:
Page 1451 and 1452:
I I PSEP APPARENT GRAIN SlZE DISTRI
Page 1453 and 1454:
I ROSA ENVIRONMENTAL & GEOTECHNICAL
Page 1455 and 1456:
L --- ROSA ENVIRONMENTAL 8 GEOTECHN
Page 1457 and 1458:
Page 1459 and 1460:
. ROSA ENVIRONMENTAL & GEOTECHNICAL
Page 1461 and 1462:
ROSA ENVIRONMENTAL 1~ GEOTECHNICAL
Page 1463 and 1464:
Field Sample I Chain of Custody Rec
Page 1465 and 1466:
Field Sample I Chain of Custody Rec
Page 1467 and 1468:
MEMORANDUM Date: July 2,1999 To: Ri
Page 1469 and 1470:
INORQANICS ANALYSIS DATA'SHBET Samp
Page 1471 and 1472:
INORQANICS ANALYSIS DATA SHEET Samp
Page 1473 and 1474:
Decc~nbcr 8, 1998 Background Soil D
Page 1475 and 1476:
December 8, 1998 Background Soil Da
Page 1477 and 1478:
Page 1479 and 1480:
Page 1481 and 1482:
Page 1483 and 1484:
Page 1485 and 1486:
Page 1487 and 1488:
Page 1489 and 1490:
INORGANIC ANALYSIS DATA SHEET TOTAL
Page 1491 and 1492:
Page 1493 and 1494:
Page 1495 and 1496:
Page 1497 and 1498:
Page 1499 and 1500:
Page 1501 and 1502:
Page 1503:
Page 1506 and 1507:
MEMORANDUM @ Date: December 8. 1998
Page 1508 and 1509:
Dcccmbcr 8, 1998 Lagoon Soil Samplc
Page 1510 and 1511:
Page 1512 and 1513:
Page 1514 and 1515:
- INORGANICS ANALYSIS DATA SHEET Sa
Page 1516 and 1517:
Page 1518 and 1519:
. INORGANICS ANALYSIS DATA SHEET Sa
Page 1520 and 1521:
Page 1522 and 1523:
INORGANIC ANALYSIS DATA SHEET TOTAL
Page 1524 and 1525:
TOTAL DIESEL RANGE HYDROCARBONS WA
Page 1526 and 1527:
TOTAL DIESEL RANGE HYDROCARBONS Lab
Page 1528 and 1529:
TOTAL DIESEL RANGE HYDROCARBONS Ran
Page 1530 and 1531:
-, - - -* 2; 3 \) \e 4 av\ ~ u h ~
Page 1532 and 1533:
DBM CONTACT: FIELD NOTES:' DATE OF
Page 1534 and 1535:
ROCK STRUCTURAL DATA FIELD SHEET JO
Page 1537:
schmit 011 fdling 71.58.50. phom N6
Page 1540 and 1541:
APPENDIX N RESULTS OF STATISTICAL A
Page 1542 and 1543:
Railraod Creek September 1998 Basef
Page 1544 and 1545:
January 20,1998 Robert Quinlan Dame
Page 1546 and 1547:
MACROINVERTEBRATE DENSITY CLIENT: D
Page 1548 and 1549:
I I MACROINVERTEBRATE DENSITY CLIEN
Page 1550 and 1551:
I RACROlNVERTEBRATE DENSITY CLIENT:
Page 1552 and 1553:
1 YSECTA WACROINMRTEBRATE DENSITY C
Page 1554 and 1555:
I 'MA NSECTA Capni i&e Claassmie se
Page 1556 and 1557:
TAXA INSECTA Desputis sugusts Leuct
Page 1558 and 1559:
MCROINYERTEBRATE DENSITY CLIENT: DU
Page 1560 and 1561:
MACROINVERTEBRATE DEUSITY CLIENT: O
Page 1562 and 1563:
.. DAMES AND MOORE HOLDEN MINE REFE
Page 1564 and 1565:
DAMES AND MOORE HOLDEN MINE REFEREN
Page 1566 and 1567:
APPENDIX P WASHINGTON NATURAL HERIT
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Dames & Moore, 1999 - USDA Forest Service

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