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Pacific Southwest, Region 9: Superfund

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Iron Mountain Mine

Superfund Site

September 1997 Record of Decision (part 2)

Administrative Record Index

To request copies of administrative record documents, an electronic order form is available.

The documents contained in this administrative record (AR) were used by the U.S. Environmental Protection Agency (EPA) in identifying appropriate remedial activities for the Record of Decision (ROD) signed by EPA on September 30, 1997. This ROD addresses sources in the Slickrock Creek watershed at the Iron Mountain Mine Superfund site near Redding, California. The original AR compilation and its first three supplements were referred to as “Spring Creek Debris Dam Operable Unit”, because the documents supported EPA’s 1994 Proposed Plan to enlarge the Spring Creek Debris Dam. For administrative convenience, Supplements 4-8 continued to be identified as “Spring Creek Debris Dam Operable Unit” even though the Proposed Plan for May 1996 did not propose enlargement or modification of the dam. With this final supplement and the signing of ROD4, however, the administrative record has finally adopted its current, more accurate title. Key documents in this administrative record include the 1994 Proposed Plan (AR #355), the 1996 Proposed Plan (AR #1424), EPA’s response to comments (AR #2396 - #2400) and the ROD (AR #2395).
Eight previous administrative records are included by reference in this September 1997 Record of Decision administrative record: the October 1986 Record of Decision AR, the 1988 Removal AR, the Administrative Order 89-18 AR, the Administrative Order 91-07 AR, the Boulder Creek Operable Unit, September 1992 Record of Decision AR, the Unilateral Administrative Order 92-96 AR, the Old/#8 Mine Seep OU AR, and the Flat Creek Bridge Removal Action AR.

The administrative record file was added to as documents became available. The file was updated in nine supplements and contains 2400 documents (not including documents incorporated by reference). The cumulative index lists the documents in ascending chronological order.

The list of U.S. Environmental Protection Agency guidance documents which were considered or relied upon in the selection of the remedy are documents AR #28, #1281 and #1677. Copies of the guidance documents are contained in the Compendium of CERCLA Response Selection Guidance Documents located in the Region 9 Superfund Records Center.

March 4, 1998

List of Abbreviations and Acronyms Used in Administrative Record Index

ABBREVIATIONMEANING
ACSAmerican Chemical Society
ADSAdvanced Drainage Systems, Inc.
AIDSAuto Immune Deficiency Syndrome
AIMEAmerican Institute of Mining, Metallurgical and Petroleum Engineers
AMDAcid Mine Drainage
AMSAcid Mine Spillage
AOAdministrative Order
APCOAir Pollution Control Officer
ASMAerated Simple Mix
AssocAssociates
ATSDRAgency for Toxic Substances and Disease Registry
attchattachment
BCMOMouth of Boulder Creek
BFPBrick Flat Pit
BHPCompany name
BLMBureau of Land Management
BORBureau of Reclamation (U.S. Department of Interior)
CACooperative Agreement or State of California
CADDComputer Aided Design
CADOWRCalifornia Department of Water Resources
CaOCalcium Oxide
CERCLAComprehensive Environmental Response, Compensation, and Liability Act of 1980 (Superfund)
CFRCode of Federal Regulations
CH2M HillEnvironmental Company
CIMCanadian Institute of Mining
CoCompany
CONCEPTCConceptual Design Concurrence
CRContaminant Resistant
CRWQCBCalifornia Regional Water Quality Control Board
CrystaBONDTrademark
CVPCentral Valley Project
DFGDepartment of Fish and Game
DNADeoxyribonucleic Acid
DOJDepartment of Justice
DTSCCalifornia Department of Toxic Substances Control
E&MJEngineering and Mining Journal
EAEnvironmental Analysis
EBMUDEast Bay Municipal Utilities District
EIMCOCompany name
EIREnvironmental Impact Report
EISEnvironmental Impact Statement
enclenclosure
EPAEnvironmental Protection Agency
ESUEvolutionarily Significant Unit
FFSFocus Feasibility Study
FLTBTributary to Flat Creek
FOIAFreedom of Information Act
FORTRANProgramming language
frfrom
FSFeasibility Study
FSAFood Security Act
FSPField Sampling Plan
FYFiscal Year
GLCGas Liquid Chromatography
GSAGeneral Services Administration
HBMSHudson Bay Mining and Smelting Co.
HDSHigh Density Sludge
HDSTPHigh Density Sludge Treatment Plan
HSPFHydrologic Simulation Program FORTRAN
IAGInteragency Agreement
ICIPRP contractor
ICIAICI Americas (PRP contractor)
IMIron Mountain
IMMIron Mountain Mine
IMMIIron Mountain Mine, Inc.
IMMWQIron Mountain Mine Water Quality
MDAMethylenedianilline
MgOMagnesium Oxide
MKMorrison Knudsen
MMAJMetal Mining Agency of Japan
MRRCMining Remedial Recovery Co., Inc.
MSCAMulti-Site Cooperative Agreement
mtgmeeting
NNorth
NAWQANational Ambient Water Quality Assessment
NPDESNational Pollutant Discharge Elimination System
NPLNational Priorities List
OHState of Ohio
ORCOffice of Regional Counsel
OUOperable Unit
P&IDPiping & Instrumentation Design
PACETrademark
PG&EPacific Gas and Electric
pHAcidity/Alkalinity
PMFProbable Maximum Flood
PMTProject Management Team
PRPPotentially Responsible Party
QAQuality Assurance
QAPPQuality Assurance Project Plan
RRiver
RARemedial Action
RA/RIRemedial Action/Remedial Investigation
RDRemedial Design
RD/RARemedial Design/Remedial Action
REVIEWCType of decision memo from U.S. Department of Interior
RIRemedial Investigation
RI/FSRemedial Investigation/Feasibility Study
ROCRecord of Communication
RODRecord of Decision
RPRhone-Poulenc
rptreport
SSouth
SactoSacramento
SAPSampling and Analysis Plan
SCAPSuperfund Comprehensive (or Consolidated) Accomplishments Plan
SCDDSpring Creek Debris Dam
SEASpaulding Environmental Associates
SEEDSafety Evaluation of Existing Dams
SFSan Francisco
SMARASurface Mining & Reclamation Act
SMCStauffer Management Co.
SNSAShasta Natural Science Association
SOWStatement of Work or Scope of Work
SPECBSpecifications (having to do with bids)
SRCSlickrock Creek
SRTPCPSacramento River Toxic Pollutant Control Program
SRWPSacramento River Watershed Program
SSPSite Safety Plan
SVTCSacramento Valley Toxics Campaign
TATechnical Assistance
TACTechnical Advisory Committee
TAGTechnical Assistance Grant
TLTransmittal Letter
TSCSuperfund Technical Support Center (Hotline)
UAOUnilateral Administrative Order
UCUniversity of California
USUnited States
USAUnited States Army
USBRUnited States Bureau of Reclamation (U.S. Department of Interior)
USDOIUnited States Department of Interior
USFWSUnited States Fish and Wildlife Service (U.S. Department of Interior)
USGSUnited States Geologic Survey
vversus or volume
w/with
w/owithout
WQMWater Quality Management Plan
ZnZinc

Administrative Record Index

Doc DateAuthor / Author Org.Addressee / Addressee Org.Title / SubjectDoc ID
11/5/1993US Dept of the Interior - Bureau of Reclamation -Memo: Accountability to value engineering (VE) study, Spring Creek Debris Dam56151
11/5/1993Zeneca IncJohn Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9
Slickrock Creek survey results61278
11/6/1993Fred Clarke / US Dept of the Interior - Bureau of ReclamationJohn Cyganiewicz / US Dept of the Interior - Bureau of ReclamationMemo: Feedback on Spring Creek VE (value engineering) study60952
11/7/1993Richard Sugarek / Environmental Protection Agency - Region 9Roger Patterson / US Dept of the Interior - Bureau of ReclamationLtr: Provides approval of proposal to supplement existing instrumentation of weir below SCDD60596
11/7/1993Richard Sugarek / Environmental Protection Agency - Region 9Dallas Linford / US Dept of the Interior - Bureau of ReclamationLtr: IAG construction oversight, response to request for documents & schedule63257
11/8/1993Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncROC: New pump on site61275
11/8/1993Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Map for monitor well locations w/TL to R Sugarek & J Spitzley fr L Erickson61277
11/8/1993Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Transmits CH2MHill technical memo re order 93-01, waste pile stabilization for 93-94 season w/encl57226
11/9/1993 - -Site location map & list of analytical tests w/TL fr CH2M Hill (without oversize map)56188
11/9/1993 - -Site location map & list of analytical tests w/TL fr CH2M Hill (oversize map only)89203
11/10/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Spring Creek Debris Dam modeling presentation (handwritten), w/attchs56921
11/10/1993Rober Holquist / Record Searchlight (Newspaper) -Article: River activist accepts post in Seattle, w/TL fr D Greenway to R Sugarek61795
11/12/1993Dick Coon / C H 2 M Hill, Inc
Dick Glanzman / C H 2 M Hill, Inc
John Spizley / C H 2 M Hill, IncMemo: Slickrock Creek drainage, geochemical, monitoring & modeling issues, w/TL to R Sugarek fr D Smith & attch A56168
11/16/1993Dick Glanzman / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Slickrock Creek drainage, geochemical, monitoring & modeling issues56164
11/16/1993Richard Sugarek / Environmental Protection Agency - Region 9 -(Redacted, FOIA ex 5) Project briefing with Keith Takata on Spring Creek Debris Dam enlargement61305
11/16/1993Charles Howard / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: List of issues to be discussed at project management team mtg re Spring Creek Dam enlargement61306
11/16/1993Morrison Knudsen Corp -Slickrock Creek & Boulder Creek sampling location maps & analytical data, w/marginalia (box 4)58140
11/17/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg with US Fish & Wildlife Service (handwritten)60943
11/18/1993Charles Alpers / US Geological SurveyRichard Sugarek / Environmental Protection Agency - Region 9Ltr: transmits 11 water samples (7 surface water & 4 gw samples) fr Slickrock Creek, w/encl61284
11/18/1993Dale Smith / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits revised Slickrock Creek Water Quality Graphs w/encl61740
11/19/1993William Brumbaugh / US Fish & Wildlife ServiceBrian Finlayson / CA Dept of Fish & GameDetermination of acid volatile sulfide & simultaneously extracted metals in sediments fr Keswick Reservoir56211
11/22/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re pre-project management team mtg w/list of attendees and issues56196
11/22/1993US Dept of the Interior - Bureau of Reclamation -Photos: Cement testing - 10, 7x5, in color56844
11/22/1993Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Waste pile stabilization re AO 93-0160591
11/22/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Budget mtg with Bureau of Reclamation61304
11/23/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes fr modelling mtg with Stauffer Mgmt61303
11/24/1993Krista Doebbler / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits statement of work (SOW), Spring Creek Debris Dam (SCDD), structual raise, w/attch56176
11/24/1993Stacey Butler / K R C R (Television station)
Cal Hunter / K R C R (Television station)
Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Thanks for being a guest on Inquiry program61793
11/29/1993Duncan Austin / CA Environmental Protection Agency - Dept of Toxic Substances ControlRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Results of depth to water measurements, Slickrock Creek61285
11/30/1993Felix Cook / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmittal of study for South Fork diversion of Spring Creek re SCDD enlargement, w/attch56915
12/1/1993CA Regional Water Quality Control Board - Central Valley Region -Sacramento River Basin biotoxicity survey, results 88-9058020
12/1/1993Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team mtg #4, final designs w/encl61292
12/1/1993Jean Pollard / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Summary of scope changes & transmits proposed budget to complete environmental analysis for enlargement of Spring Creek Debris Dam, w/o encl61300
12/2/1993Richard Sugarek / Environmental Protection Agency - Region 9Larry Hall / Stauffer Management CoROC: Slickrock Creek update61274
12/2/1993C H 2 M Hill, Inc -Cost estimate for phase 3 Spring Creek Debris Dam sizing study w/TL to R Sugarek fr J Spitzley61301
12/3/1993US Dept of the Interior - Bureau of ReclamationUS Dept of the Interior - Bureau of ReclamationMemo: Accountability rpt, Spring Creek Debris Dam56916
12/3/1993Francis McLean / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Memo: Response to accountability rpt w/rpt submitted by R Volpe 11/11/93 & TL fr F McLean to R Sugarek 1/12/9456918
12/3/1993John Spitzley / C H 2 M Hill, Inc
John Livingston / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on Stauffer submittal, Sludge Drying Bed Calculations62367
12/4/1993Richard Sugarek / Environmental Protection Agency - Region 9Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: Spring Creek Debris Dam enlargement design decisions61302
12/6/1993William Walker / Shasta County - Dept of Resource ManagementT W Arman / Iron Mountain Mines, IncLtr: Ore removal fr IMM61758
12/7/1993Jean Pollard / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Revised scope of work (SOW) & proposed budget Spring Creek Debris Dam environmental analysis, w/labor & expense plan rpts56917
12/7/1993Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Proposed agenda for 12/13/93 mtg61282
12/7/1993Robert Holquist / Record Searchlight (Newspaper) -Article: Bundle up - rain, snow are coming w/TL to R Sugarek fr D Greenway61796
12/8/1993US Dept of the Interior - Bureau of ReclamationUS Dept of the Interior - Bureau of ReclamationIndustrial hygiene technical assistance survey drill crew operations, Spring Creek w/TL55989
12/8/1993Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Notifies Stauffer to commence treatment of Richmond & Lawson acid mine drainage (AMD) flows in accordance with AO 93-0162370
12/13/1993Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Slickrock Creek update, resource recovery, w/list of attendees, proposed sampling prog, overheads, maps56180
12/13/1993Dennis Heiman / CA Regional Water Quality Control Board - Central Valley RegionRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Status of water level & precipitation recorders at IMM62817
12/14/1993Marcia Howe / Shasta Natural Science AssnFraser Felter / Environmental Protection Agency - Region 9Ltr: TAG update, w/marginalia63552
12/20/1993Stewart Herman / C H 2 M Hill, IncJim Mavis / C H 2 M Hill, IncMemo: Stauffer proposal for resource recovery56187
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v2 of 854175
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v5 of 854206
1/1/1994Stauffer Management Co -Technical rpts as part of Rhone-Poulenc response to water management FS54231
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v3 of 855091
1/1/1994Stauffer Management Co -Shasta dam monthly operation summary - App C to historical fact rpt55436
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v7 of 855453
1/1/1994US Dept of the Interior - Bureau of Reclamation -Water conveyance systems - design standards #3 (Chapter 12)56076
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v4 of 856082
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v8 of 856083
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v1 of 856099
1/1/1994Stauffer Management Co -Documents supporting summaries of USBR water quality measurements, v6 of 856100
1/1/1994Stauffer Management Co -Creek sampling program - Spring Creek, Spring Creek weir56513
1/1/1994Stauffer Management Co -Creek sampling program - Slick Rock Creek, confluence of Slick Rock & Spring Creek56514
1/1/1994Stauffer Management Co -Creek sampling program - Boulder Creek, confluence of Boulder & Spring Creek56515
1/1/1994Stauffer Management Co -Creek sampling program - Boulder Creek, Lawson Gate Weir56516
1/1/1994Richard Sugarek / Environmental Protection Agency - Region 9 -IMM Spring Creek Debris Dam calculations w/marginalia56716
1/1/1994Robert Lewis / CA Regional Water Quality Control Board - Central Valley Region -Monitoring results of IMM complex & receiving water - supplemental staff rpt w/attchs & TL fr D Heiman 1/31/9456904
1/1/1994Stauffer Management Co -Precipitation summaries - App B to historical fact rpt57069
1/1/1994Stauffer Management Co -Historical fact rpt - part of Rhone-Poulenc response to water management FS57070
1/1/1994Stauffer Management Co -Documents supporting Shasta Dam monthly summary57071
1/1/1994Stauffer Management Co -Selected documents reflecting contributions of other mines to metals loading in Sacramento River - App E to historical fact rpt, v2 of 257072
1/1/1994Stauffer Management Co -Various summaries of water quality - App F to historical fact rpt57073
1/1/1994Stauffer Management Co -Documents supporting Shasta Dam monthly summary, v1 of 257074
1/1/1994Stauffer Management Co -Spring Creek Debris Dam daily operations summaries - App A to historical fact rpt57075
1/1/1994Stauffer Management Co -App to comments of Rhone-Poulenc in response to public comment water management FS issued by EPA 6/9457076
1/1/1994Stauffer Management Co -Selected documents reflecting contributions of other mines to metals loading in Sacramento River - App E to historical fact rpt, v1 of 157077
1/1/1994US Geological Survey -Keswick reservoir sediment study57422
1/1/1994US Geological Survey -Elemental concentrations in pore waters fr Keswick reservoir sediments - table 557423
1/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9
US Dept of the Interior - Bureau of Reclamation
Spring Creek Debris Dam sizing study58609
1/1/1994Phil Doe / US Dept of the Interior - Bureau of ReclamationBetsy Rieke / US Dept of the InteriorMemo: Revised draft RI of OU 4, w/TL to K Doebbler fr C Alpers61816
1/1/1994US Dept of the Interior - Bureau of Reclamation- Chron list of runoff in 1000s of acre-ft - computed inflow to Shasta Lake 1922-1994, w/TL to R Sugarek fr V Ungvari 9/22/9462926
1/1/1994Morrison Knudsen Corp -Abstract of proposals - Slickrock clean water diversion base bid (box 6, box 10)63222
1/1/1994Brian Spiller / Stauffer Management Co -Newsclip: Open ltr to Redding residents & neighbors of Iron Mountain re enlargement of SCDD (7/7 mtg at 7:00)62314
1/1/1994C H 2 M Hill, Inc -Photos: 30 4x5 in color, site visit62320
1/1/1994Morrison Knudsen Corp -Draft presentation visuals for Slickrock Creek treatment (box 2 set 2)57863
1/1/1994Don Mandel / CA Environmental Protection Agency - Dept of Toxic Substances ControlEnvironmental Protection Agency - Region 9MSCA (multi state cooperative agreement) site activity rpt63072
1/1/1994Morrison Knudsen Corp -Abstract of proposals - Brick Flat Pit sulfide capping base bid (box 10)63341
1/1/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Summary discussion - factors affecting SCDD storage requirements62589
1/1/1994Morrison Knudsen Corp -Handwritten notes: AMD calculations (box 2 set 2)63870
1/1/1994Morrison Knudsen Corp -Grain distribution curves (box 10)63728
1/1/1994Morrison Knudsen Corp -Cost summary for treatment of Slick Rock Creek AMD, w/marginalia (box 2 set 2)63740
1/1/1994Anne Connell / Morrison Knudsen Corp -Handwritten notes: Comments fr A Christiansen re cost estimates (box 2 set 2)63741
1/1/1994Morrison Knudsen Corp -Handwritten notes: Rd treatment, prime contractors, culp soil stabilization (box 5)63749
1/3/1994James Pedri / CA Regional Water Quality Control Board - Central Valley RegionJim Ragon / Zeneca IncLtr: Requests site visit to review erosion & sediment discharge resulting fr construction activity62376
1/5/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits draft sampling program quality assurance plan, w/attch56165
1/5/1994Richard Sugarek / Environmental Protection Agency - Region 9 -(Redacted, FOIA ex 5) Agenda for 1/5/94 management briefing, Spring Creek Debris Dam enlargement, w/maps, table, graphics & diagrams56937
1/5/1994Buford Holt / US Dept of the Interior - Bureau of Reclamation
William Pennington / US Dept of the Interior - Bureau of Reclamation
-Spring Creek Diversion Dam enlargement - possible alternative w/TL to Spitzley fr Sugarek61299
1/6/1994Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team meeting #5, final designs, Spring Creek Debris Dam, w/encl56157
1/6/1994Robert Holquist / Record Searchlight (Newspaper) -Newsclip: Keswick toxic goo probed61790
1/7/1994Morrison Knudsen Corp -Waste rock piles preliminary plan of investigation, w/marginalia (box 6)57856
1/11/1994Roger Lindquist / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncMemo: Comments on Bureau of Reclamation resposne to Value Engineering rpt & rpt of 1st A-E consultant mtg re Spring Creek Debris Dam modification61297
1/12/1994Jim Mavis / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Byproduct recovery options (draft), Spring Creek Debris Dam (SCDD), w/tables56163
1/13/1994Margaret Felts / CA Environmental Protection Agency - Dept of Toxic Substances ControlKeith Takata / Environmental Protection Agency - Region 9Ltr: Enlargement of Spring Creek Debris Dam61298
1/19/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek Power Plant Investigation w/TL to R Sugarek fr R Grimes 3/14/9458787
1/19/1994Alfred Christiansen / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits work proposed to control stream flow in Flat Creek & to secure Finazzo existing pump & pressure tank w/encl62709
1/24/1994Denise Klimas / National Oceanic & Atmospheric Administration -Ltr: Announces 1/24/94 mtg of state & federal natural resource trustee reps re IMM w/sampling info, mtg agenda & mtg notes by R Sugarek61296
1/24/1994US Dept of the Interior - Bureau of Reclamation -Reasons to detour county road traffic around construction site for Spring Creek Dam enlargement w/TL to R Sugarek fr B Dewey61669
1/24/1994Joseph Patten / NONE -Comments on Bulletin 160-93 - CA state water development policy57227
1/26/1994Stauffer Management Co -Mtg overheads re Slickrock Creek sampling program58785
1/28/1994Richard Sugarek / Environmental Protection Agency - Region 9Dale Pierce / US Fish & Wildlife ServiceMemo: Intent to enter into IAG with USFWS re enlargement to Spring Creek Debris Dam61295
2/1/1994Terry Mills / CA Dept of Fish & Game
Frank Fisher / CA Dept of Fish & Game
-Central Valley anadromous sport fish annual run-size, harvest & population estimates, 1967-1991 (1st draft 6/93, revised 2nd draft 2/94)55912
2/1/1994Ron Luehring / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team meeting #6, final designs, Spring Creek Debris Dam, w/encls56155
2/1/1994Richard Sugarek / Environmental Protection Agency - Region 9Stauffer Management CoROC: conference call notes re resource recovery, w/sampling tables fr CH2MHill56186
2/2/1994Richard Sugarek / Environmental Protection Agency - Region 9 -(Redacted, FOIA ex 5) Agenda for 2/2/94 management briefing, Spring Creek Debris Dam enlargement, w/handwritten notes & other attchs56177
2/3/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re RD at Spring Creek Debris Dam w/draft memo re raising of SCDD, agenda for 2/3/93 mtg & design documents56195
2/4/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Technical issues for Spring Creek Dam Enlargement w/TL to R Sugarek fr D Eubank61761
2/4/1994Jim Ragon / Stauffer Management CoJames Pedri / CA Regional Water Quality Control Board - Central Valley RegionLtr: Updates on progress & plans for erosion control at site62397
2/4/1994Zeneca Inc -Drawings: Lawson swale design plans, w/TL to R Sugarek & J Spitzley fr L Freese62399
2/7/1994Richard Sugarek / Environmental Protection Agency - Region 9 -(Redacted, FOIA ex 5) Agenda for 2/7/94 briefing by John Wise re Spring Creek Debris Dam enlargement, w/attchs56936
2/8/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9(Redacted, FOIA ex 4) Workplan amendment #5 - RD/RA oversight56712
2/8/1994US Dept of the Interior - Bureau of Reclamation -Data rpt - operating scenarios for investigation of Spring Creek arm of Keswick Reservoir56717
2/8/1994Joe Finazzo, Resident / City of ReddingRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Discussion of pumps installed on Finazzo property w/6 photos62708
2/11/1994Robert Dewey / US Dept of the Interior - Bureau of ReclamationDon Bricker / US Dept of the Interior - Bureau of Reclamation(Privileged, FOIA ex 5) Memo: Transmits revised memo re Project Management Team (PMT) issues according to discussions at 2/3/94 mtg, w/encl & TL to M Hingerty fr DOJ 5/24/94 (privileged document target only)2150421
2/14/1994Jeffrey Storer / Ropes & Gray (Attorneys)Warren Hutchison / Burns & Levinson (Attorneys)Ltr: Document subpoena to CH2M Hill61760
2/16/1994Bob Lewis / CA Regional Water Quality Control Board - Central Valley RegionDennis Heiman / CA Regional Water Quality Control Board - Central Valley Region
James Pedri / CA Regional Water Quality Control Board - Central Valley Region
Memo: Summary of results of samples in 11/93 comprehensive survey at IMM w/Table 1 & TL to distribution list fr D Heiman 2/18/9461283
2/18/1994Stauffer Management Co -Spring Creek metal loading analysis project data rpts (water quality rpts)56185
2/22/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re Spring Creek Debris Dam56718
2/23/1994Warren Hutchison / Burns & Levinson (Attorneys)Daryl Greenway / C H 2 M Hill, IncLtr: Transmits ltr fr J Storer (Ropes & Gray) re subpoena served 1/2/92 w/o encl (Privileged, FOIA ex 5)56728
2/23/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9TL: Proposed agenda for 3/1/94 mtg61294
2/23/1994Zeneca IncEnvironmental Protection Agency - Region 9Ltr: Draft of secrecy agreement for proprietary information re resource recovery, w/TL to M Hingerty fr J Kelly60586
2/24/1994US Dept of the Interior - Bureau of Reclamation -Technical issues for SCDD enlargement w/TL to R Sugarek fr D Eubank60590
2/25/1994John Spitzley / C H 2 M Hill, Inc
Kenneth Iceman / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Review comments on hydrologic and hydraulic calculations for Boulder Creek culvert crossing for Lawson AMD pipeline62403
2/26/1994Jim Mavis / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncMemo: Review of Stauffer byproduct recovery proposal w/marginalia56184
2/28/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Transmits EPA review comments on Stauffer stability calculations, pipeline crossing, & hydrologic & hydraulic calculations, w/attchs A-C57108
2/28/1994Richard Sugarek / Environmental Protection Agency - Region 9Matt Rumboltz / US Dept of the Interior - Bureau of ReclamationMemo: Spring Creek Debris Dam enlargement data request61281
3/1/1994Robert Dewey / US Dept of the Interior - Bureau of ReclamationAdressees / NONEMtg notes: Design team meeting #7, final designs, Spring Creek Debris Dam, w/encls56154
3/1/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re Stauffer Management work56845
3/1/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Slickrock Creek weir 94 flow levels62593
3/1/1994John Spitzley / C H 2 M Hill, Inc -Total computed copper concentration vs flow - Lower Spring Creek gaging station 83-93 data62595
3/2/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Handwritten notes: Section 7 consultation meeting, w/tables & list of attendees for Santa Rosa mtg56912
3/3/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits sulfate & magnesium loading re use of magnesium hydroxide for neutralization process w/encl59475
3/4/1994Paul Capener / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits comparison of metals concentration below Keswick Reservoir in Sacramento River w/encls (w/o oversize list)58786
3/4/1994Morrison Knudsen Corp -Summary of waste rock piles, proposal of engineering design services table 2-1, w/marginalia (box 10)63727
3/7/1994Ken Iceman / C H 2 M Hill, IncDale Smith / C H 2 M Hill, IncMemo: Spring Creek Debris Dam Feasibility Study (FS), alternate damsites w/attch A56705
3/8/1994Dale Smith / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncScope of work for Boulder Creek & Slickrock Creek Dams feasibility technical memo61754
3/9/1994Richard Sugarek / Environmental Protection Agency - Region 9 -(Redacted, FOIA ex 5) Agenda for 3/9/94 briefing by Henry Longest re Spring Creek Debris Dam enlargement, w/attch56935
3/10/1994Zeneca Inc -Memo: Boulder & Silckrock Creek monitoring program, metal loading summary rpt, 12/1-2/28/94, w/2 TLs 3/10/94 (w/o disk)56906
3/10/1994Bart Prose / US Fish & Wildlife ServiceRichard Sugarek / Environmental Protection Agency - Region 9Draft SOW for Spring Creek Reservoir enlargement - impact assessment, w/TL fr B Prose to R Sugarek63327
3/10/1994Zeneca Inc -Memo: Boulder & Silckrock Creek monitoring program, metal loading summary rpt, 12/1-2/28/94, w/2 TLs 3/10/94 (disk only)96426
3/14/1994Stephen Daniels / Engineering News-Record -Article: Untried design pushed out west - mining reclamation61797
3/17/1994Paul Capener / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Peripheral design items for raising Spring Creek Debris Dam58775
3/17/1994Denise Klimas / National Oceanic & Atmospheric AdministrationNational Oceanic & Atmospheric AdministrationLtr: Announces mtg to discuss issues re preassessment screen for site61671
3/17/1994Gary Chapman / Environmental Protection Agency - Office of Research & DevelopmentBrian Finlayson / CA Dept of Fish & GameLtr: Comments on CH2MHill rpt on SCDD & salmonid & copper toxicity model w/marginalia60560
3/17/1994Gary Chapman / Environmental Protection Agency - Office of Research & DevelopmentBrian Finlayson / CA Dept of Fish & GameLtr: Comments on CH2MHill rpt re Spring Creek Debris Dam & salmonid & copper toxicity model61742
3/21/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits draft Spring Creek Debris Dam sizing study, w/encls (graphics, tables & 2 diskettes)(w/o disk)56905
3/21/1994Jim Mavis / C H 2 M Hill, Inc
Dick Coon / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, IncMemo: Notes of meeting re Stauffer Management Co (SMC) presentation on progress in field monitoring program, 3/1/9456914
3/21/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits draft Spring Creek Debris Dam sizing study, w/encls (graphics, tables & 2 diskettes) (disk only)96423
3/23/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re waste rock piles, Slickrock piping, AMD storage, & sealing air shafts (handwritten), w/agenda, list of attendees, & attchs57111
3/23/1994David Eubank / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits outline for development of plan to provide public safety re enlargement of Spring Creek Debris Dam w/encl61748
3/24/1994Dick Coon / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncMemo: Comments of issues discussed at mtgs with Stauffer & Morrison-Knudsen on 3/23/94 w/attchs55631
3/24/1994David Hinton / Univ of California, Davis - School of Veterinary Medicine
Howard Bailey / Univ of California, Davis
Gwen Starrett / CA Water Resources Control BoardMaster contract - North Valley study quarterly rpt58021
3/24/1994James McEntire / McEntire LandscapingJim Ragon / Stauffer Management CoLtr: Erosion control project proposal, w/encl, marginalia, TL header 3/28/94 & TL to A Connell fr A Christiansen 10/3/95 (box 6)63332
3/25/1994John Spitzley / C H 2 M Hill, Inc
Ken Iceman / C H 2 M Hill, Inc
Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: Cofferdam evaluation, Spring Creek Debris Dam sizing project w/attchs61617
3/25/1994John Spitzley / C H 2 M Hill, Inc
Ken Iceman / C H 2 M Hill, Inc
Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: Cofferdam evaluation - Spring Creek Debris Dam sizing project61753
3/28/1994Ron Luehring / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits memo re hydraulic model study proposal for Spring Creek Debris Dam selective withdrawal system w/encl & TL to Sugarek fr Luehring56910
3/28/1994US Dept of the Interior - Bureau of Reclamation -Clear Creek inflow data w/TL to R Sugarek fr J Spitzley61759
3/29/1994Richard Sugarek / Environmental Protection Agency - Region 9Nick Adanza / National Oceanic & Atmospheric AdministrationMtg notes: Mtg with Natural Resource Trustee Council w/list of attendees, metal concentration data & other attchs56194
3/30/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality tables w/handwritten note, list of fax #s & TL 11/4/9356183
4/1/1994C H 2 M Hill, Inc -Draft IMM water quality model w/TL to R Sugarek fr J Spitzley 4/17/94, w/o disk55691
4/1/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Spring Creek Debris dam enlargement environmental analysis56179
4/1/1994Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team mtg #8, final designs61670
4/1/1994C H 2 M Hill, Inc -Draft IMM water quality model w/TL to R Sugarek fr J Spitzley 4/17/94 (disk only - water quality model 4/94)87569
4/5/1994Mark Oliver / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Spring Creek debris dam preliminary mitigation opportunities63261
4/5/1994Alfred Christiansen / Zeneca IncAnne Connell / Morrison Knudsen CorpMemo: Transmits Earthwork costs, rd improvements compensation schedule & AMD flow rates, w/o pp 4-6 & 12-24, w/pp 2-3 & 7-11 & marginalia (box 10)58144
4/6/1994Alfred Christiansen / Zeneca IncLee Erickson / Zeneca IncMemo: Finazzo water supply w/TL to R Sugarek fr L Erickson62642
4/7/1994Richard Sugarek / Environmental Protection Agency - Region 9Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: Comments on design C concurrence memo, Slickrock Creek Debris Dam enlargement61672
4/8/1994US Dept of the Interior - Bureau of Reclamation -Estimate worksheet - Spring Creek Debris Dam, design C summary cost estimate55633
4/8/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Geologic design data for EPA enlargement of Spring Creek Debris Dam w/TL to R Sugarek fr D Eubank, w/o oversize parts55636
4/8/1994Christine Sutton / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncLtr: Transmits analytical data results & quality control data w/encls56501
4/8/1994Steve Atkinson / Baker & McKenzie (Attorneys)Michael Hingerty / Environmental Protection Agency - Region 9
Lee Erickson / Zeneca Inc
Ltr: Use of tailings piles material w/map60592
4/8/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Geologic design data for EPA enlargement of Spring Creek Debris Dam w/TL to R Sugarek fr D Eubank (oversize map only - Regional Geology)87365
4/8/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Geologic design data for EPA enlargement of Spring Creek Debris Dam w/TL to R Sugarek fr D Eubank (oversize drawings only - Spring Creek Debris Dam foundation)87367
4/8/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Geologic design data for EPA enlargement of Spring Creek Debris Dam w/TL to R Sugarek fr D Eubank (oversize drawing only - general geologic notes)87370
4/8/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Geologic design data for EPA enlargement of Spring Creek Debris Dam w/TL to R Sugarek fr D Eubank (oversize drawings only - engineering geology)87371
4/11/1994US Dept of the Interior - Bureau of Reclamation -Design C, concurrence with final desgins of dam enlargement w/signature page55632
4/11/1994US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Shasta inflow data56715
4/11/1994Mark Oliver / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: In form of telephone notes re preliminary mitigation opportunities61743
4/13/1994Michael Hingerty / Environmental Protection Agency - Region 9Steve Atkinson / Baker & McKenzie (Attorneys)Ltr: Transmits model provisions for consent decree, discusses removal of tailings piles w/o encl62446
4/13/1994Tom Haldas / Zeneca IncIvan Joya / Morrison Knudsen CorpMemo: Transmits 7/14/93 memo re sizing of AMD conveyance pipeline & 5/91 guide for overflows & gravity drainage systems, w/attchs (box 2 set 2)57788
4/14/1994David Jones / Environmental Protection Agency - Region 9Margaret Felts / CA Environmental Protection Agency - Dept of Toxic Substances ControlLtr: Transmits fact sheets for sites likely to need state 10% cost share w/encls (privileged, FOIA ex 5)56734
4/15/1994Jim Mavis / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Technical memo: Alternative acid mine drainage (AMD) by-product recovery process w/attchs (box 2 set 2)56213
4/15/1994Jim Mavis / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review of Stauffer Management Co by-product recovery proposal w/attchs56214
4/18/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Mtg with Stauffer Management re update on Spring Creek Debris Dam enlargement w/encls56212
4/18/1994Stauffer Management Co -Overheads - Acid mine drainage (AMD), workplan outlines at 4/18/94 mtg58752
4/19/1994Jeff Zelikson / Environmental Protection Agency - Region 9 -Unilateral administrative order for RD & RA, docket #94-12, w/attch A (Old #8 Mine Seep ROD) & attch B (concept design for Old #8 Mine Seep - 4/19/94 technical memo)26647
4/19/1994Jeff Zelikson / Environmental Protection Agency - Region 9T W Arman / Iron Mountain Mines, IncLtr: Transmits & discusses administrative order for RD & RA, docket #94-12, w/o encl26652
4/19/1994Jeff Zelikson / Environmental Protection Agency - Region 9Rhone-Poulenc Basic Chemicals CoLtr: Transmits order for RD & RA, docket #94-12, w/o encl26653
4/19/1994US Dept of the Interior - Bureau of Reclamation -Permeability test data for drill holes (supplement to Geologic Design Data for EPA enlargement of Spring Creek Debris Dam, 4/8/94)55635
4/19/1994Bart Prose / US Fish & Wildlife Service -Scope of work (SOW) for Spring Creek Reservoir Enlargement w/TL to R Sugarek fr Bart Prose61762
4/19/1994David Jones / Environmental Protection Agency - Region 9James Tjosvold / CA Environmental Protection Agency - Dept of Toxic Substances ControlLtr: Notification of intent to issue unilateral administrative order61831
4/19/1994David Jones / Environmental Protection Agency - Region 9Jeff Zelikson / Environmental Protection Agency - Region 9Memo: Transmits unilateral administrative order for treatment O & M and RD/RA at Old #8 Mine Seep OU, w/o encl61832
4/20/1994US District Court - Eastern District of CaliforniaC H 2 M Hill, IncDeposition subpoena61763
4/20/1994Bobby Calvan / Record Searchlight (Newspaper) -Article: All shook up - quarrying rattles residents w/TL to R Sugarek fr J Spitzley61798
4/20/1994Larry Beaton / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits 4/5/94 ltr fr Zeneca re confidentiality request61736
4/21/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Zeneca IncLtr: Identification of ARARs at site61676
4/21/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re discussions with design team w/agenda61677
4/22/1994John Spitzley / C H 2 M Hill, Inc
Jean Pollard / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Evaluation of area watershed apportionment - Spring Creek Watershed55630
4/22/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek Debris Dam Enlargement - 2nd Independent Consultant Review55634
4/22/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 92nd A-E consultant mtg, data package for enlargement of Spring Creek Debris Dam (without oversize drawing)55692
4/22/1994Dianna Young / Environmental Protection Agency - Region 9Jeff Zelikson / Environmental Protection Agency - Region 9Memo: ORC weekly rpt - IMM outreach61800
4/22/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 92nd A-E consultant mtg, data package for enlargement of Spring Creek Debris Dam (oversize drawing only)87615
4/25/1994US Dept of the Interior - Bureau of Reclamation -Sacramento River sampling rpts58732
4/27/1994Alfred Christiansen / Zeneca IncLee Erickson / I C I Americas, IncMemo: Controlling runoff at Slickrock Creek drainage basin, w/marginalia & TL to A Connell fr L Freese 4/28/94 (box 4)63731
4/28/1994Denise Klimas / National Oceanic & Atmospheric AdministrationNatural resource trustee repre / NONELtr: Announces 5/5/94 mtg of Natural Resources Trustee Council in Redding for site tour w/o map w/TL to R Sugarek fr D Klimas61745
4/28/1994Richard Sugarek / Environmental Protection Agency - Region 9Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: EPA concurrence with Spring Creek Debris Dam enlargement peripheral design decisions61747
4/29/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Technical memo: Reconnaissance-level evaluation of AMD containment dams & treatment facilities for area source AMD on Boulder & Slickrock Creeks56692
4/29/1994J Fox / Cominco Engineering Services Ltd
D Murcock / Cominco Engineering Services Ltd
J Bensley / Cominco Engineering Services Ltd
-Article: Treatment of acid mine drainage by high density sludge (HDS) process57206
4/29/1994Larry Beaton / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Subpoenas served on CH2MHill by IMM PRPs61737
4/29/1994Warren Hutchison / Burns & Levinson (Attorneys)Robert Nutt / C H 2 M Hill, Inc(Privileged, FOIA ex 5) Ltr: Transmits ltr fr P Galvani to W Hutchison re Burns & Levinson response to Rhone-Poulenc demand for IMM docs w/encl & TL (Privileged document target only)2150423
5/1/1994US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9IMM Spring Creek Debris Dam enlargement environmental analysis56694
5/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9IMM water quality model w/o disc56695
5/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Agency review draft water management FS56697
5/1/1994Richard Sugarek / Environmental Protection Agency - Region 9Duncan Austin / CA Environmental Protection Agency - Dept of Toxic Substances ControlProposed plan for treatment of Slickrock Creek base flows & enlargement of Spring Creek Reservoir w/TL to D Austin fr R Sugarek 5/23/9456709
5/1/1994Environmental Protection Agency - Office of Research & Development -List of new technology transfer publications (Technology transfer)57202
5/1/1994C H 2 M Hill, Inc -Bureau of Reclamation analytical test results below Keswick Dam61764
5/1/1994Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team mtg #9, final designs w/attch61746
5/2/1994Jean Pollard / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Technical memo: Evaluation of area watershed apportionment - Spring Creek Watershed56691
5/2/1994Richard Sugarek / Environmental Protection Agency - Region 9Robert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: Transmits review comments & questions re USBR final designs for SCDD (Spring Creek Debris Dam) enlargement w/encl58747
5/2/1994Jean Pollard / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Evaluation of area watershed apportionment, Spring Creek watershed58776
5/2/1994James Pedri / CA Regional Water Quality Control Board - Central Valley RegionRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Coordination of IMM site remediation activities61765
5/2/1994James Pedri / CA Regional Water Quality Control Board - Central Valley RegionRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Coordination of site remediation activities61786
5/3/1994Joseph Kelly / Zeneca IncMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Opposes SCDD enlargement62500
5/3/1994Joseph Kelly / Zeneca IncMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Enlargement of Spring Creek Debris Dam (SCDD)61739
5/5/1994Joseph Kelly / Stauffer Management CoMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Requests EIS & EIR for expanded SCDD62522
5/5/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - Old/#8 mine seep AMD collection & conveyance system, w/figures 3 & 4 & attch H (box 9)57859
5/6/1994Mark Oliver / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Spring Creek Debris Dam, conceptual mitigation alternatives w/attch 158768
5/8/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Boulder Creek & Slickrock Creek treatment evaluation, w/attchs57282
5/8/1994John Spitzley / C H 2 M Hill, IncKen Iceman / C H 2 M Hill, IncMemo: SCDD 750 gpm treatment evaluation60574
5/10/1994CA Dept of Fish & Game -Article: Water quality & water quantity needs for Chinook Salmon production in Upper Sacto R (1992 Hearing Process on SF Bay/Sacto-San Joaquin Delta)55846
5/10/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Zeneca IncLtr: Water management OU identification of ARARs w/attchs56702
5/11/1994Daryl Greenway / C H 2 M Hill, Inc
John Spitzley / NONE
Richard Sugarek / Environmental Protection Agency - Region 9Technical Memo: Alternative 5 evaluation (Ch 5) for water management FS57191
5/11/1994John Spitzley / C H 2 M Hill, IncCraig Yamada / C H 2 M Hill, IncSpring Creek Debris Dam sizing study - list of 7 tasks 3/4-4/24/9461766
5/11/1994Steve Atkinson / Baker & McKenzie (Attorneys)Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Administrative order 94-1261780
5/11/1994 - -Article: 9th Circuit finds regulatory agencies in violation of Clean Water Act - recent federal actions w/TL to R Sugarek fr J Spitzley61799
5/11/1994Steve Atkinson / Baker & McKenzie (Attorneys)Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Notice of intent re order 94-1262040
5/11/1994John Spitzley / NONE
Daryl Greenway / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Alternative reservoir sites (Ch 2 draft insert) water management FS60572
5/11/1994Daryl Greenway / C H 2 M Hill, Inc
John Spitzley / NONE
Richard Sugarek / Environmental Protection Agency - Region 9
Cynthia Wetmore / NONE
Technical memo: Draft text inserts - alternative 6 (revised) water management FS60573
5/11/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Stauffer Management Co requests that EPA provide source code version of CH2M Hill water quality model.61738
5/12/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re Spring Creek Debris Dam, modelling, w/list of attendees, agenda & overheads56720
5/12/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Request that EPA provide source code version of CH2M Hill water quality model re enlargement of Spring Creek Debris Dam61767
5/12/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg agenda: EPA/Stauffer modeling study mtg62591
5/13/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Response to 5/11/93 ltr re source code version of CH2M Hill Spring Creek Debris Dam model61768
5/13/1994Frank Peter / Zeneca IncJeff Zelikson / Environmental Protection Agency - Region 9Ltr: Request for extension to comment period re administrative order 94-1261781
5/13/1994Frank Peter / Zeneca IncJeff Zelikson / Environmental Protection Agency - Region 9Ltr: Request for extension to comment/response period to 5/27/94 re order 94-1261833
5/15/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Pounds of copper removed using 750 gpm treatment option61769
5/16/1994Jean Pollard / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Technical memo: General impact comparative analysis - Spring Creek Debris Dam Enlargement Alternatives w/encls56690
5/16/1994William Walker / Shasta County - Dept of Resource ManagementT W Arman / Iron Mountain Mines, IncLtr: Ore removal fr IMM61770
5/16/1994Bill Walker / Shasta County - Dept of Resource ManagementT W Arman / Iron Mountain Mines, IncLtr: Ore removal fr IMM w/TL to S Atkinson fr M Hingerty62561
5/16/1994Daryl Greenway / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Draft description of alternative water management 2 (WM2) FS60575
5/18/1994Ken Iceman / C H 2 M Hill, IncEnvironmental Protection Agency - Region 9List of computer directories56706
5/18/1994T W Arman / Iron Mountain Mines, IncWilliam Walker / Shasta County - Dept of Resource ManagementLtr: Ore removal fr IMMI61771
5/19/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Memo: Transmits Agency review draft of Feasibility Study (FS) for Water Management Operable Unit, IMM w/o encl (privileged, FOIA ex 5)56724
5/19/1994Keith Takata / Environmental Protection Agency - Region 9Margaret Felts / CA Environmental Protection Agency - Dept of Toxic Substances ControlLtr: Site water management study - Spring Creek Debris Dam61772
5/19/1994Richard Sugarek / Environmental Protection Agency - Region 9James Haas / US Fish & Wildlife Service
Roger Wolcott / US Fish & Wildlife Service
Ltr: Transmits EPA review draft of IMM Feasibility Study (FS) rpt & cover memo w/o encls61773
5/20/1994Jean Pollard / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Calculation index water management feasibility study (FS)61757
5/20/1994Richard Sugarek / Environmental Protection Agency - Region 9Bruce Macler / Environmental Protection Agency - Region 9Ltr: Transmits Agency review draft water management feasibility study (FS) w/o attch61774
5/23/1994Environmental Protection Agency - Region 9 -Site summary rpt - SCAP-02 for IMM (privileged, FOIA ex 5)56729
5/23/1994Jim Mavis / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: By-product recovery options56763
5/23/1994Morrison Knudsen Corp -Calculations for AMD storage volume (box 4)63338
5/23/1994Zeneca Inc -SOW for engineering design - control of rainwater runoff to minimize formation of AMD, Slickrock Creek drainage basin (box 5)63729
5/24/1994C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Cost estimates for 2 dam alternatives (Privileged, FOIA ex 5)56735
5/24/1994Richard Sugarek / Environmental Protection Agency - Region 9Denise Klimas / National Oceanic & Atmospheric AdministrationLtr: Transmits Agency review draft of IMM water management feasibility study (FS) rpt w/o encl61775
5/24/1994Morrison Knudsen Corp -Budget direct cost estimate for AMD storage, in-progress working calculation, w/marginalia (box 4)63730
5/25/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: 6/8/94 mtg61776
5/26/1994John Livingston / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Alternative reservoir sites (revised) - Spring Debris Dam Enlargement Project56714
5/26/1994 - -Spring Creek Debris Dam - issues related to diversion flood routings w/TL to J Spitzley fr J Trojanowski56721
5/26/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits disk containing IMM water quality model executable program & source code w/o encl61777
5/26/1994Paul Galvani / Ropes & Gray (Attorneys)Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Response to administrative order 94-1261782
5/26/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Stauffer response to administrative order 94-1261783
5/26/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Stauffer response to Unilateral Administrative Order 94-12 (Order completion)61829
5/26/1994Paul Galvani / Ropes & Gray (Attorneys)Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Notice of Rhone-Poulenc intent to comply to administrative order 94-1261830
5/31/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek Debris Dam water quality monitoring rpt w/TL to R Sugarek fr C Sarsfield56722
5/31/1994Anne Connell / Morrison Knudsen CorpLloyd Freese / Stauffer Management CoMemo: Preliminary cost estimates for waste rock pile removal/disposal & Old/#8 AMD pipeline construction, w/attchs (box 2 set 2, box 4)63732
6/1/1994Environmental Protection Agency - Region 9 -Fact sheet: EPA announces proposed plan for treatment of Slickrock Creek base flows & enlargement of Spring Creek reservoir55917
6/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Water management FS55918
6/1/1994Environmental Protection Agency - Office of Research & Development -Seminar series on managing environmental problems at inactive & abandoned metals mine sites w/marginalia56520
6/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Spring Creek Debris Dam sizing study w/TL to R Sugarek fr J Spitzley 6/2/9456723
6/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Spring Creek Debris Dam load analysis data rpt w/o disk or oversize map56727
6/1/1994 - -Fisheries benefit analysis for proposed enlarged Spring Creek Debris Dam56726
6/1/1994Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: Design team mtg #10, final designs w/summary of design work & status rpt56733
6/1/1994US Dept of the Interior - Bureau of Reclamation -Construction geology, Slickrock Creek diversion, Spring Creek watershed pollution control program w/o oversize maps56971
6/1/1994CA Regional Water Quality Control Board -Precipitation at Shasta Dam, 93-94 (App A) & Water quality data fr routine monitoring stations, 1993-94 (App B) w/TL to R Sugarek fr D Heiman57267
6/1/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Transmits source code for IMM water quality model w/o encl61778
6/1/1994Melissa Healy / Los Angeles Times (Newspaper) -Newsclip: Dams must keep adequate river levels, justices rule61789
6/1/1994Glenda Chui / San Jose Mercury News -Newsclip: Bay contaminated with PCBs61801
6/1/1994Eckenfelder, IncZeneca IncProcess flow schematic for treatment of Slick Rock Creek acid mine drainage (AMD) (box 2 set 2)63738
6/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Spring Creek Debris Dam load analysis data rpt (Oversize map only)95151
6/1/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Spring Creek Debris Dam load analysis data rpt (Disk only)95152
6/1/1994US Dept of the Interior - Bureau of Reclamation -Construction geology, Slickrock Creek diversion, Spring Creek watershed pollution control program (Oversize maps only)96117
6/2/1994Michael Hingerty / Environmental Protection Agency - Region 9File / NONEMemo: Briefing of regional administrator Felicia Marcus re IMM (Privileged, FOIA ex 5)55907
6/2/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Experimental proposals to treat acid mine drainage61784
6/2/1994Ivan Joya / Morrison Knudsen CorpAnne Connell / Morrison Knudsen CorpAnswers to questions in 6/1/94 memo re pipe to landslide/waste rock area at Old/#8 (box 4)63733
6/3/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Cancels 6/8 mtg re presentation of technical data & dam enlargement w/encls56730
6/3/1994US Dept of the Interior - Bureau of Reclamation -Back-up info for 3/92 spill w/TL to R Sugarek fr K Doebbler56732
6/6/1994Richard Sugarek / Environmental Protection Agency - Region 9File / NONELtr: Transmits briefing materials re alternatives considered re Water Management Feasibility Study w/attchs56731
6/6/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Requests that 6/8 mtg re technical issues not be postponed61785
6/6/1994Richard Sugarek / Environmental Protection Agency - Region 9Addressees / NONEMemo: Technical Advisory Committee (TAC) mtg 6/7/94 at EPA 9 re State issues, draft Feasibility Study (FS) sent 5/19/9461787
6/6/1994Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Potential 6/8/94 mtg between EPA, State, & Stauffer (SMC)61788
6/6/1994Richard Sugarek / Environmental Protection Agency - Region 9Addressees / NONEMemo: Confirms EPA Technical Advisory Committee (TAC) mtg 6/7/94 re State issues, Review Draft Feasibility Study (FS)61802
6/6/1994Michael Hingerty / Environmental Protection Agency - Region 9Paul Galvani / Ropes & Gray (Attorneys)Ltr: Rhone-Poulenc compliance with order 94-1261804
6/6/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Zeneca IncLtr: Water Management operable unit identification of ARARs61805
6/6/1994John Spitzley / C H 2 M Hill, Inc -In-stream neutralization sludge production, w/TL to R Sugarek fr J Spitzley61809
6/6/1994Alfred Christiansen / Zeneca IncAnne Connell / Morrison Knudsen CorpROC: Cost estimates for Old/#8 pipeline & tanks (box 6)63734
6/7/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: EPA, State, Trustee - comments on FS & proposed plan (privileged, FOIA ex 5)56760
6/7/1994Charles Alpers / US Geological Survey -Sediment data, analytical procedures & results (draft)56761
6/7/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Outline - Spring Creek Debris Dam operating plan (draft)56762
6/8/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Water management Feasibility Study (FS) schedule61803
6/9/1994US Dept of the Interior - Bureau of Reclamation -Keswick reservoir sediment analysis56108
6/9/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Waste rock pile removal/disposal - construction drawings (12) re order 93-01 (mapcase)57179
6/9/1994US Geological Survey -Keswick Reservoir sediment analysis (94-95 spill data)57417
6/9/1994 - -Groundwater level recovery -rates following pump shutdown (draft), w/marginalia (box 2 set 2)63735
6/10/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Old #8 acid mine drainage pipeline - construction drawings (17) re order 94-12 (mapcase)57178
6/10/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Acid mine drainage storage - construction drawings (6) re order 93-01 (mapcase)57183
6/10/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - AMD storage, w/marginalia (box 9)58238
6/10/1994Joseph Kelly / Stauffer Management CoMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Reminder that EPA should comply with 1986 ROD re RD & RA, w/TL to R Sugarek fr J Kelly 6/10/9461817
6/10/1994Morrison Knudsen CorpStauffer Management CoField sampling & geotechnical investigation for RD57652
6/10/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - AMD storage57653
6/10/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - Old/#8 mine seep AMD pipeline (box 5, box 9)57890
6/10/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - waste rock pile removal & disposal57891
6/10/1994Morrison Knudsen CorpStauffer Management CoPreliminary design - Old/#8 mine seep AMD pipeline, v2, collection & conveyance system, w/marginalia (9/29/94 I Joya comments) (box 2 set 2)58107
6/13/1994Steve Markwell / US Dept of the Interior - Bureau of Reclamation -Ltr: Transmits "comment card" responses re SCDD enlargement w/attchs 1 & 256521
6/13/1994James Tjosvold / CA Environmental Protection Agency - Dept of Toxic Substances Control
James Pedri / CA Environmental Protection Agency - Dept of Toxic Substances Control
David Jones / Environmental Protection Agency - Region 9Ltr: Comments on water management FS61824
6/13/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Stauffer Management CoLtr: Response to 6/10/94 ltr re request to set up meeting61826
6/13/1994Francis McLean / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Response to requests for inclusion of periperal design items in SCDD enlargement62448
6/13/1994Morrison Knudsen Corp -Oversize drawings: Richmond tank (13), 5/26/94-6/13/94, w/handwritten notes & marginalia (box 9)58118
6/14/1994John Resing / John H ResingRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Cleanup technologies w/encls (article & ad)57309
6/14/1994Richard Sugarek / Environmental Protection Agency - Region 9David Jones / Environmental Protection Agency - Region 9Memo: Proposed plan for water management FS, w/o encl61827
6/14/1994Richard Sugarek / Environmental Protection Agency - Region 9David Jones / Environmental Protection Agency - Region 9Memo: Water management proposed plan (concurrence copy)62590
6/14/1994Morrison Knudsen Corp -AMD storage order of magnitude estimate for tanks vs tanks/ponds (box 2 set 2)63736
6/16/1994Ken Iceman / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits spill day data, annual capacities & spreadsheets55923
6/16/1994John Spitzley / C H 2 M Hill, Inc
Ken Iceman / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Overtopping Spring Creek Debris Dam during construction61828
6/16/1994Environmental Protection Agency - Region 9 -Press release: EPA Superfund cleanup plan available for public62592
6/17/1994Eckenfelder, IncZeneca IncPresentation visuals - treatability of acid mine drainage (AMD) & runoff for Slick Rock Creek, w/marginalia (box 2 set 2)58108
6/20/1994C H 2 M Hill, Inc -TLs: Site documents sent by CH2M Hill to various companies & agencies (28 TLs)56090
6/20/1994Morrison Knudsen CorpStauffer Management CoOld #8 acid mine drainage (AMD) pipeline - construction drawings (17), w/marginalia58098
6/20/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Notification re proposal plan, FS & mtg62588
6/21/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9TL: IMM metal loading study summary rpt62105
6/22/1994Zeneca Inc -IMM metal loading analysis project data rpts 2/21/94-6/10/94 w/TL to R Sugarek fr L Erickson56522
6/22/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality rpt w/TL to R Sugarek fr C Sarsfield57194
6/22/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Stauffer Management CoLtr: Proposal to proceed with action on SCDD62587
6/22/1994Eckenfelder, IncZeneca IncPreliminary land area requirements for treatment plant (draft), w/TL to A Connell fr J Allen (box 2 set 2)63737
6/23/1994Anne Connell / Morrison Knudsen CorpLloyd Freese / Stauffer Management CoMemo: Preliminary estimates for Slick Rock Creek treatment (box 2 set 2)58109
6/23/1994Richard Sugarek / Environmental Protection Agency - Region 9James Haas / US Fish & Wildlife Service
Roger Wolcott / National Oceanic & Atmospheric Administration - National Marine Fisheries Service
Ltr: Natural resources trustee consultation62586
6/24/1994US Dept of the Interior - Bureau of Reclamation -Geologic design data for EPA enlargement of SCDD w/TL to R Sugarek fr D Eubank, w/o oversize drawing56530
6/24/1994Jeff Allen / Eckenfelder, IncAnne Connell / Morrison Knudsen Corp
Malcolm Watts / Zeneca Inc
Robert Wetzel / Zeneca Inc
Memo: Transmits cost summary & process flow diagrams for treatment of Slick Rock Creek AMD, w/attchs (box 2 set 2)58110
6/24/1994Joseph Kelly / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests additional 30 days to submit comments on Iron Mountain water management FS62585
6/24/1994US Dept of the Interior - Bureau of Reclamation -Geologic design data for EPA enlargement of SCDD w/TL to R Sugarek fr D Eubank (oversize drawing only)88882
6/27/1994US Dept of the Interior - Bureau of Reclamation -Method of procurement for construction solicitation for SCDD enlargement, w/TL to R Sugarek fr Ron L 6/30/9457228
6/27/1994Malcolm Watts / Zeneca Inc -M Watts overheads for 6/27/94 mtg, w/marginalia (box 2 set 2)58111
6/27/1994Zeneca Inc -Outline on organization of cost estimates, w/TL to A Connell fr A Christiansen 6/28/94 (box 2 set 2)63739
6/28/1994Michael Hingerty / Environmental Protection Agency - Region 9Paul Galvani / Ropes & Gray (Attorneys)Ltr: Rhone-Poulenc compliance with AO 94-1262564
6/28/1994Michael Hingerty / Environmental Protection Agency - Region 9Joseph Kelly / Stauffer Management CoLtr: Cooperation between EPA & Rhone-Poulenc & decision making re proposed enlargement of SCDD62583
6/28/1994Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: IMM public mtg, comment period & EPA/State/Stauffer mtg62584
6/28/1994Morrison Knudsen Corp -Capital costs for Slick Rock Creek treatment alternatives & roadway drainage (box 2 set 2)63742
6/29/1994Brian Spiller / Stauffer Management Co -Ltr: To Redding residents & neighbors of Iron Mountain re EPA public mtg concerning SCDD enlargement62449
6/29/1994Morrison Knudsen Corp -Hydraulic design calculations - Old #8 mine seep AMD pipeline, w/topography map & excerpts fr Driscopipe, ADS pipe & APCO catalogs (box 7)58112
6/29/1994Richard Sugarek / Environmental Protection Agency - Region 9Joseph Kelly / Stauffer Management CoLtr: Response to request for extension of IMM public comment period62582
6/30/1994John Trojanowski / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Memo: Discussion of 100-year flood scenarios & transmits SCDD summary of diversion flood routing studies w/encl62450
7/1/1994Francis McLean / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Addresses Zeneca concerns about SCDD enlargement62451
7/1/1994Francis McLean / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Outlines Zeneca concerns with SCDD enlargement plans w/TL to R Sugarek fr K Doebbler 7/5/9457229
7/1/1994R Dow / Morrison Knudsen Corp -Preliminary Slickrock Creek options (box 2 set 2)63744
7/6/1994 - -Newsclip: Toxic tug-of-war57190
7/6/1994Robert Holquist / Record Searchlight (Newspaper) -Newsclip: IMM cleanup tackling decades of pollution w/IMM history & how its toxic legacy flows thru north state w/o oversize newsclip57265
7/6/1994Jim Mayer / Sacramento Bee -Newsclip: US says enlarge dam to prevent Shasta mine spill62312
7/6/1994Ivan Joya / Morrison Knudsen Corp -Designs, calculations & cost estimates for Old/#8 AMD pipeline, 4/5/94-7/6/94 (box 2 set 2)57858
7/6/1994Robert Holquist / Record Searchlight (Newspaper) -Newsclip: IMM cleanup tackling decades of pollution w/IMM history & how its toxic legacy flows thru north state (Oversize newsclip only)97257
7/7/1994 - -Computer Disk: IMM public hearing55070
7/7/1994 - -Public hearing at Red Lion Hotel, Redding CA56968
7/7/1994Stauffer Management Co -Stauffer position on SCDD enlargement w/handwout62106
7/8/1994Francis McLean / US Dept of the Interior - Bureau of ReclamationFelix Cook / US Dept of the Interior - Bureau of ReclamationMemo: Accountability rpt - SCDD w/TL to R Sugarek fr F McLean56524
7/8/1994Morrison Knudsen Corp -Hydraulic design calculations - Old #8 mine seep AMD pipeline (box 2 set 2, box 5, box 7)56994
7/8/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Old #8 acid mine drainage (AMD) pipeline - construction drawings (24), re order 94-12 (mapcase)57180
7/8/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Waste rock pile removal/disposal - construction drawings (12) re order 93-01 (mapcase)57181
7/8/1994Robert Holquist / Record Searchlight (Newspaper) -Newsclip: EPA, mining firm square off on Spring Creek dam62309
7/8/1994J W Brashear Contruction IncMorrison Knudsen CorpBid form - base bid schedule for waste rock pile removal & disposal (box 10)63849
7/11/1994Richard Sugarek / Environmental Protection Agency - Region 9Wenona Garside / Environmental Protection Agency - Region 9Memo: Proposed Zeneca confidentiality agreement, w/attchs (Privileged, FOIA ex 4)57276
7/12/1994R Dow / Morrison Knudsen Corp -Drawings: Sliprock Creek options 1-4, w/TL to L Hall fr R Dow (box 2 set 2)58113
7/12/1994Ivan Joya / Morrison Knudsen Corp -Old #8 mine seep AMD pipeline calculations (box 2 set 2)63745
7/12/1994Ivan Joya / Morrison Knudsen Corp -Old/#8 AMD pipeline calculations, ROC to L Hall & drawing (box 2 set 2)63854
7/15/1994J W Brashear Contruction IncMorrison Knudsen CorpBid form - alternate bid schedule for waste rock pile removal & disposal bottom geomembrane liner alternate (box 10)63847
7/15/1994 -Morrison Knudsen CorpBid form - alternate bid schedule for waste rock pile removal & disposal bottom geomembrane liner alternate (box 10)63848
7/16/1994Record Searchlight (Newspaper) -Newsclip: Iron Mountain - how its toxic legacy flows through north state57189
7/18/1994Morrison Knudsen Corp -Spring Creek Debris Dam enlargement drawings, diagrams & maps57304
7/18/1994Gordon Kingsley / NONERichard Sugarek / Environmental Protection Agency - Region 9Ltr: Comments & proposed methods for cleanup of site, w/encls57435
7/18/1994CA Dept of Fish & Game -Notice of public mtg62308
7/18/1994CA Dept of Fish & Game -Mtg agenda: Keswick reservoir sediment toxicity study w/TL to D Greenway fr R Sugarek62452
7/18/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Discusses technical review mtg62453
7/18/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Workplan amendment 6 for RD/RA oversight, w/contract pricing proposal cover sheet, & w/TL to W Garside fr L Beaton (Privileged, FOIA ex 4)57689
7/18/1994C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Workplan amendment 6 for RD/RA oversight w/attchs (Privileged, FOIA ex 4)57840
7/19/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Monthly rpts for 12/92 - 6/9456995
7/19/1994Zeneca IncC H 2 M Hill, IncList of questions re SCDD, w/marginalia & TL to R Sugarek fr L Erickson62454
7/19/1994Wenona Garside / Environmental Protection Agency - Region 9Larry Beaton / C H 2 M Hill, IncLtr: Zeneca confidentiality agreement62455
7/19/1994Robert Holquist / Record Searchlight (Newspaper) -Newsclip: Rpt says sludge harms water, kills fish62526
7/19/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality w/TL to R Sugarek fr C Sarsfield57230
7/19/1994Joel Medlin / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits aerial photos & maps of identified habitat areas w/aerial photos, w/o oversize maps57231
7/19/1994Joel Medlin / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits aerial photos & maps of identified habitat areas w/encls (Oversize maps only)97319
7/21/1994S R Hansen & AssocStauffer Management CoProposed study plan - trial liming of Boulder Creek & Slickrock Creek at Iron Mountain, w/TL to R Sugarek fr L Erickson 7/22/9457232
7/21/1994Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Teleconference with L Erickson, M Adams & J Spitzley re Zeneca modeling questions w/list of questions62543
7/22/1994Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoROC: Mtg - 7/26/94 re SMC implementation plan62458
7/22/1994Michael Hingerty / Environmental Protection Agency - Region 9Melinda Brown, Resident / City of ReddingLtr: Transmits excerpts fr Response to Comments w/o encl62459
7/22/1994Robert Shanks / Sacramento CountyRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests copy of executive summary of plan to reduce impacts of metal-contaminated water discharges62829
7/25/1994Morrison Knudsen Corp -Abstract of proposals - Old #8 mine pipeline & conveyance systems base bid (box 6, box 10)63330
7/25/1994Robert Dewey / US Dept of the Interior - Bureau of Reclamation -Mtg notes: SCDD design team mtg #11, final designs62460
7/25/1994Michael Hingerty / Environmental Protection Agency - Region 9John Wise / Environmental Protection Agency - Region 9Memo: Update re proposed plan for remediation of area source acid mine drainage (AMD) w/attchs62461
7/25/1994Cherilyn Widell / CA Office of Historic PreservationRoger Patterson / US Dept of the Interior - Bureau of ReclamationLtr: SCDD enlargement & National Historic Preservation Act60558
7/25/1994Morrison Knudsen Corp -Abstract of proposals - Old #8 mine pipeline jeep trail improvement (box 10)63340
7/25/1994Morrison Knudsen Corp -Abstract of proposals - waste rock pile removal & disposal base bid (box 10)63841
7/25/1994Morrison Knudsen Corp -Abstract of proposals - waste rock pile removal & disposal bottom geomembrane liner alternate (box 10)63842
7/25/1994Morrison Knudsen Corp -Abstract of proposals - Old #8 mine pipeline & conveyance systems alternate bid (box 10)63843
7/25/1994Morrison Knudsen Corp -Abstract of proposals - Old #8 mine pipeline electrical work (box 10)63844
7/26/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Stauffer Management & EPA re Spring Creek Debris Dam enlargement w/handouts & attendance list56518
7/26/1994Zeneca Inc -Proposed agenda for 7/26 mtg w/2 TLs to R Sugarek fr L Erickson 7/20 & 7/21/9462456
7/26/1994 - -ROC: Mtg - 7/26/94 re SCDD62457
7/27/1994US Dept of the Interior - Bureau of Reclamation -Status rpt & schedule for design, procurement & construction of SCDD w/TL to R Sugarek fr B Dewey62462
7/28/1994John Spitzley / C H 2 M Hill, Inc -Ltr: Transmits high density sludge info w/encl & w/2 ltrs re Stauffer commitment to conduct response action per order 94-12 & technical mtg re AMD56525
7/28/1994Richard Sugarek / Environmental Protection Agency - Region 9Viola Cooper / NONEMemo: USFWS IAG, documents rationale for EPA providing authorization to proceed with studies related to production of coordination act rpt63253
7/28/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests high density sludge point information62559
7/28/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: High density sludge (HDS) point information60571
7/29/1994John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Evaluation of magnesium oxide62463
7/29/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: High density sludge treatment plant RD/RA status, w/attch62464
7/31/1994Dick Coon / C H 2 M Hill, Inc
John Spitzley / NONE
Daryl Greenway / NONE
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on 7/26/94 mtg with Stauffer62465
8/1/1994Roy F Weston, IncStauffer Management CoEvaluation of CH2M Hill & EPA Region 9 IMM water quality model - Spring Creek Debris Dam study56942
8/1/1994Roy F Weston, IncStauffer Management CoFocused FS rpt for mitigation of acid mine drainage releases fr Iron Mountain site near Redding - v1 of 256943
8/1/1994Roy F Weston, IncStauffer Management CoFocused FS rpt for mitigation of acid mine drainage releases fr Iron Mountain site near Redding - v2 of 2, attchs A-H56944
8/1/1994Stauffer Management Co -Tech rpts submitted on behalf of Rhone-Poulenc Inc as part of Rhone-Poulenc's response to water management FS for inclusion in public record56957
8/1/1994Brian Spiller / Stauffer Management CoDuncan Austin / CA Environmental Protection Agency - Dept of Toxic Substances ControlLtr: Invitation to technical mtg re effects of metals on fish in Sacramento River below Keswick w/TL62466
8/1/1994Morrison Knudsen CorpStauffer Management CoPreliminary design for Slickrock Creek clean water diversions, w/attchs (box 5)58122
8/2/1994Richard Sugarek / Environmental Protection Agency - Region 9Joe Patton, Resident / City of ReddingLtr: Transmits info re SCDD enlargement w/o encls62467
8/2/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Comments on Stauffer proposed study plan for trial liming of Slickrock Creek & Boulder Creek62468
8/2/1994Richard Sugarek / Environmental Protection Agency - Region 9Robert Shanks / Sacramento CountyLtr: Transmits info requested in 7/22/94 ltr - proposed plan & executive summary fr EPA water management FS, w/o attchs62830
8/6/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Ltrs re request that analyses of HDS treatment process & base flows be sent to SMC, w/attch60567
8/7/1994Jim Stefanoff / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Information request of SMC w/related correspondence & TL to R Sugarek fr J Stefanoff & to F Peter fr M Hingerty57195
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc as part of Rhone-Poulenc's response to water management FS for inclusion in public record56960
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - appendix A, Spring Creek Debris Dam daily operations summaries 12/63-7/8656961
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - appendix B, precipitation summaries 1940-199456962
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - appendix C, Shasta Dam monthly operation summary 1944-199456963
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - appendix D, summaries of USBR water quality measurements56964
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - app E, v1 of 2, selected docs reflecting contributions of other mines to metals loading56965
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc - app E, v2 of 2, selected docs reflecting contributions of other mines to metals loading56966
8/8/1994Stauffer Management Co -Historical fact rpt submitted on behalf of Rhone-Poulenc Inc for inclusion in public record - appendix F, various summaries of water quality56967
8/8/1994Jim Mavis / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncMemo: 7/26/94 mtg notes re monitoring & controlling AMD & presents new proposals for managing non-point sources of AMD w/TL 8/10/9457196
8/9/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Old #8 acid mine drainage (AMD) pipeline - revised construction drawings (19), re order 94-12 (box 10)58226
8/9/1994Environmental Protection Agency - Risk Reduction Engineering Laboratory -Agenda for seminar on managing environmental problems at inactive & abandoned metals mine sites62560
8/10/1994Charles Alpers / US Geological SurveyLee Erickson / Zeneca IncLtr: Discussion of metal transport study & transmits info on study of sediments in Keswick Reservoir, w/o encls62929
8/10/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Request for Stauffer Management magnesium oxide treatment plant information62100
8/10/1994Morrison Knudsen CorpStauffer Management CoOversize drawings: Old #8 acid mine drainage (AMD) pipeline - approved construction drawings #24 & #25, re order 94-12 (box 10)63852
8/11/1994Herbert Sample / Sacramento Bee -Newsclip: Shasta Dam project among survivors in House-passed bill62317
8/12/1994Robert Wetzel / Stauffer Management Co -Use of magnesium oxide to treat Iron Mountain acid mine drainage - technical summary w/TL to Sugarek fr MaloneyHuss 8/31/94 (Privileged, FOIA ex 4)57452
8/12/1994Joann Newman / Aquatic Habitat Management CorpRichard Sugarek / Environmental Protection Agency - Region 9Ltr: List of products & services62933
8/12/1994Denise Klimas / National Oceanic & Atmospheric AdministrationJeff Zelikson / Environmental Protection Agency - Region 9Ltr: Review of water management FS including proposed plan for treatment of Slickrock Creek base flows & enlargement of SCDD62832
8/15/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Memos: Monthly rpts 7/94-10/94 per administrative order 93-0154173
8/15/1994Residents / City of ReddingEnvironmental Protection Agency - Region 9(Redacted, FOIA ex 6) Public comments re water management FS57437
8/15/1994David Fisher / US Dept of the Interior - Bureau of ReclamationRobert Dewey / US Dept of the Interior - Bureau of ReclamationMemo: SCDD costs - early warning system cost estimate w/handwritten notes by R Sugarek60563
8/15/1994Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Maintenance items to be performed60565
8/16/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: Spec review, 8/15-8/16/9460562
8/16/1994Joseph Kelly / Stauffer Management CoMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Water management FS comments to be delivered to EPA 8/22/94 w/TL to M Hingerty fr J Kelly60564
8/18/1994Stauffer Management Co -Analytical results of AMD neutralization treatment system 7/94-9/94, 11/94-3/95 w/TLs to J Pedri fr J Coglaiti per AO 93-0154980
8/18/1994Stauffer Management CoCA Regional Water Quality Control Board - Central Valley RegionMonthly analytical results of acid mine drainage neutralization treatment system for 12/93-6/94, w/TLs to J Pedri fr J Coglaiti56996
8/18/1994US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality rpt w/TL to R Sugarek fr C Sarsfield57198
8/18/1994James Tjosvold / CA Environmental Protection Agency - Dept of Toxic Substances ControlDavid Jones / Environmental Protection Agency - Region 9Ltr: Comments on water management FS & proposed plan, w/attch A & TL to R Sugarek fr D Austin57308
8/18/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Will send magnesium oxide info when agreement of confidentiality reached62101
8/18/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Magnesium oxide experiments62103
8/18/1994Jeff Barnard / Sacramento Bee -Newsclip: Salmon's future bleaker, U S says62316
8/18/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Will provide info on magnesium oxide experiments as soon as confidentiality agreement is reached62469
8/19/1994Stauffer Management Co -Comments submitted on behalf of Rhone-Poulenc in response to public comment water management FS, Spring Creek Debris Dam load analysis & data rpt, etc56954
8/19/1994Stauffer Management Co -Appendix to comments of Rhone-Poulenc Inc in response to public comment water management feasibility study issued by EPA in 6/9456955
8/19/1994US Dept of the Interior - Bureau of Reclamation -REVIEWC decision memo - concurrence with decisions made during specification review for dam enlargement w/signature p & addendum60551
8/19/1994Jim Stefanoff / C H 2 M Hill, Inc
John Spitzley / NONE
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits RD budget forecast w/encl & TL62523
8/20/1994Brian Spiller / Stauffer Management CoDavid Jones / Environmental Protection Agency - Region 9Ltr: Alternative to EPA water management FS & reason it should be adopted, w/attch re key historical facts ignored by EPA in decision to enlarge SCDD56953
8/20/1994Ropes & Gray (Attorneys) -Comments submitted by Stauffer Management Co on behalf of Rhone-Poulenc in response to public comment water management FS & proposed plan issued 6/9456956
8/22/1994Glen Martin / San Francisco Chronicle (Newspaper) -Newsclip: Salmon lose struggle for Shasta River w/o oversize part57280
8/22/1994Lee Erickson / Stauffer Management CoEnvironmental Protection Agency - Region 9Ltr: Transmits comments on EPA water mgt FS & notification that confidential studies re magnesium oxide will be provided, w/o attchs62043
8/22/1994David Eubank / US Dept of the Interior - Bureau of ReclamationKrista Doebbler / US Dept of the Interior - Bureau of ReclamationMemo: FY94/95 estimates for SCDD w/ltr to R Sugarek fr Krista Doebbler 8/19/9462828
8/22/1994Glen Martin / San Francisco Chronicle (Newspaper) -Newsclip: Salmon lose struggle for Shasta River (Oversize part only)97259
8/24/1994Mary MaloneyHuss / Stauffer Management CoMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Proprietary magnesium oxide information developed by Stauffer Management Co w/TL to R Sugarek fr M MaloneyHuss62102
8/24/1994Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Stauffer management proposed plan submittal62307
8/24/1994Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Proposed SCDD enlargement & additional technical information to be released60559
8/24/1994Sacramento Bee -Newsclip: Another dam holdup60570
8/25/1994David Jones / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Proprietary magnesium oxide information developed by Stauffer62104
8/29/1994US Dept of the Interior - Bureau of Reclamation FS comments fr Denver office w/TL fr K Doebbler to R Sugarek62831
8/30/1994Mary MaloneyHuss / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmittal of documents filed on behalf of Rhone-Poulenc 8/22/94 re public comment water mgt FS, w/o attchs62044
8/31/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Shasta County mtg notes (mtg with Ed Sigmund, Casey Scott, Pat Cecil & Bill Walker)62540
9/1/1994Richard Sugarek / Environmental Protection Agency - Region 9 -Review comments on 8/31/94 Stauffer MgO (magnesium oxide) submittal (Privileged FOIA ex 5)55915
9/2/1994Jeri Simmons / Environmental Protection Agency - Region 9Larry Beaton / C H 2 M Hill, IncLtr: Approval to review Stauffer confidential business information claims w/TL, non-disclosure statement & memo fr R Sugarek re proprietary SMC info62818
9/6/1994Jeff Zelikson / Environmental Protection Agency - Region 9David Jones / Environmental Protection Agency - Region 9Decision memo: Recommends approval re USGS technical support services, w/commitment notice & attch, w/o SOW63326
9/7/1994Frank Michny / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Comments on water management FS & Environmental analysis57199
9/7/1994CA Dept of Fish & Game
US Geological Survey
-Metal transport in Sacramento R - implications for mine-drainage mitigation w/Spring Creek AMD toxicity study & handwritten note fr Alpers to Sugarek57395
9/7/1994Environmental Protection Agency - Region 9US Fish & Wildlife ServiceFully executed IAG amendment (signed) for technical support, w/attch A, & w/TL fr V Cooper to C Ely 9/19/9457747
9/7/1994Bacon-Western Co -Miller Curbilder literature, w/TL to D Wanket (box 5)58117
9/7/1994Dan Wanket / Morrison Knudsen Corp -Drawing: Typical rd access/drainage channel section, w/TL to D Keith fr D Wanket (box 5)63746
9/8/1994David Keith / Muse Concrete ContractorsDan Wanket / Morrison Knudsen CorpLtr: Quote for 18-inch curb & transmits 2 photos of machine curb & gutter & excerpt fr trimmer/slipform paver operators manual, w/attchs (box 5)58115
9/9/1994Jim Stefanoff / C H 2 M Hill, Inc -Memo: MgO vs CaO/HDS, w/attchs & marginalia (privileged, FOIA ex 4)57277
9/9/1994M B W IncDan Wanket / Morrison Knudsen CorpMemo: Transmits slipform paver literature & bulletin 036, w/attchs (box 5)58116
9/16/1994David Jones / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: 104(e) request for information w/mail receipt P424 454 73654469

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