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Pacific Southwest, Region 9: Superfund

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Iron Mountain Mine

Superfund Site

September 1997 Record of Decision (part 5)

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
10/29/1996Keith Takata / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Stauffer will coordinate operation of ASM (aerated simple mix) treatment plant during EPA modifications to implement HDS remedy63474
10/30/1996Paul Ekoniak / Zeneca IncJohn Spitzley / C H 2 M Hill, IncLtr: Transmits Basic Lab Rpt sheets for 10/96 for both on & off site sampling efforts w/encls57980
10/30/1996Richard Sugarek / Environmental Protection Agency - Region 9George Goodridge / Rhone-Poulenc Basic Chemicals CoLtr: Transmits 2 ltrs (10/25/96 & 10/29/96) EPA sent to Stauffer re requirements of unilateral administrative orders 93-01 & 94-12, w/encls57901
10/31/1996John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Transmits results of lab testing of water samples collected at IMM 10/28/96 w/encl57928
10/31/1996National Oceanic & Atmospheric Administration - National Marine Fisheries Service -Endangered & threatened species, threatened status for Central CA coast coho salmon evolutionarily significant unit (ESU), 50 CFR pt 227 (61 FR 56138)58264
10/31/1996Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Administrative record issues in response to 9/27/96 ltr to M Hingerty, w/TLs63499
11/1/1996John Kemmerer / Environmental Protection Agency - Region 9Stephen Hanks / Morrison Knudsen CorpLtr: 104(e) request for information w/encls w/o mail receipt P878 532 54657915
11/1/1996C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Mtg summary - HDS treatment plant site coordination sludge distribution discharge at drying beds57921
11/1/1996Paul Ekoniak / Zeneca IncJohn Spitzley / C H 2 M Hill, IncLtr: Transmits Basic Lab Rpt sheets for 9/96 for both on & off site sampling efforts w/encls57985
11/1/1996John Kemmerer / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: 104(e) request for information w/encls w/o mail receipt P878 532 54857912
11/1/1996John Kemmerer / Environmental Protection Agency - Region 9William Marrazzo / Roy F Weston, IncLtr: Follow-up on 104(e) request for information with 2nd request for info not identified in earlier request w/attchs w/o mail receipt P878 532 54957913
11/1/1996John Kemmerer / Environmental Protection Agency - Region 9S Hansen / S R Hansen & AssocLtr: Follow-up on 104(e) request for information with 2nd request for info not identified in earlier request w/attchs w/o mail receipt P878 532 54757914
11/1/1996C H 2 M Hill, Inc -Aerial photos: 15 9 1/2 x 9 1/2 in color, site investigation, oblique views #2-#13, #15 & #16 & direct view #2-258114
11/1/1996John Kemmerer / Environmental Protection Agency - Region 9George Goodridge / Rhone-Poulenc Basic Chemicals CoLtr: Requests permission to inspect & copy documents maintained pursuant to admin orders issued to Rhone-Poulenc, w/o mail receipt P878 532 55063475
11/4/1996US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality rpts (7/17/96-11/4/96) w/TLs57851
11/4/1996Alice Thomas, Resident / Shasta CountyRichard Sugarek / Environmental Protection Agency - Region 9ROC: Cadaver preservation63476
11/6/1996Michael Cates / C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Failure mode & effect analysis during mixer & blower retrofit (draft)63595
11/7/1996Sacramento River Watershed Program -General stakeholders mtg agenda w/attchs57981
11/7/1996Paul Ekoniak / Zeneca IncJohn Spitzley / C H 2 M Hill, IncLtr: Transmits 03 additional Basic Lab rpt sheets for 10/96 to supplement existing rpt w/encls63576
11/8/1996Paul Ekoniak / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Summary of sampling program & requests review & approval of IM draft sampling program for 96-97 winter season w/tables 1-658002
11/8/1996Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Administrative record issues in response to 10/31/96 ltr63498
11/8/1996Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Supplemental v67-73 are relevant to FS addendum published by EPA in 5/96 & earlier RODs63562
11/9/1996Sacramento River Preservation Trust -State of Sacramento River conference program w/attchs57982
11/11/1996Brian Spiller / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Response to 104(e) ltrs63495
11/11/1996Frank Peter / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Stauffer disagrees that it violated a UAO as stated in 10/25/96 Mattie ltr w/encl63577
11/12/1996Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Administrative record issues in response to 11/8/96 ltr63497
11/12/1996George Goodridge / Rhone-Poulenc Basic Chemicals CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Inspection request in response to 11/1/96 ltr63578
11/13/1996John Kemmerer / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Transmits financial disclosure form referenced in 104(e) request for info 11/1/96, w/encl63494
11/13/1996Paul Ekoniak / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests review of weir improvements at Boulder Creek, w/encls63609
11/13/1996Alice Thomas, Resident / City of ReddingRichard Sugarek / Environmental Protection Agency - Region 9Rpt about Tom Boyer, deceased IMM miner63682
11/14/1996Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits sludge data since start-up of aerated simple mix treatment plant in fall of 94 & data collected in Brick Flat Pit since 10/94 w/encls57930
11/14/1996Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoROC: HDS O&M start-up63579
11/18/1996Richard Sugarek / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Comments on HDS treatment plant modifications57931
11/18/1996CA Regional Water Quality Control Board -Cease & desist order & NPDES permit w/TL to R Sugarek fr D Heiman57932
11/18/1996Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Preliminary rpt on biological survey results58029
11/19/1996Joe Coglaiti / Stauffer Management CoJames Pedri / CA Regional Water Quality Control Board - Central Valley RegionLtr: Transmits analytical results of AMD neutralization treatment system for 10/96 w/attch63580
11/19/1996G Chapman / Paladin Water Consulting -Article abstract - Acclimation & avoidance behavior in Steelhead Trout following chronic exposure to copper (SETAC 17th annual mtg)63584
11/21/1996Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Information & inspection requests w/TL & activity rpt57961
11/21/1996Thomas Bloomfield / Environmental Protection Agency - Region 9S Hansen / S R Hansen & AssocLtr: Extends 104(e) response deadline to 1/6/9763563
11/21/1996Thomas Bloomfield / Environmental Protection Agency - Region 9William Marrazzo / Roy F Weston, IncLtr: Extends 104(e) response deadline to 1/6/9763564
11/21/1996Thomas Bloomfield / Environmental Protection Agency - Region 9Stephen Hanks / Morrison Knudsen CorpLtr: Extends 104(e) response deadline to 1/6/9763565
11/21/1996T W Arman / Iron Mountain Mines, IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Resource recovery project63581
11/21/1996Richard Procunier / Environmental Protection Agency - Region 9Distribution / NONEMemo: Wilson appointees fire regional water chief (reported in Sacto Bee 11/19/97)63582
11/21/1996Joseph Domagalski / US Geological SurveySacramento River Watershed ProgramMtg 12/12/96 to discuss status of NAWQA (Natl Ambient Water Quality Assessment) monitoring w/agenda63583
11/25/1996Penny Howard / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits 2 memos & ltr requested for use in responding to IMM comments w/encls57983
11/25/1996Penny Howard / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9(Redacted, FOIA ex 5) Ltr: Transmits 2 memos & ltr requested for use in responding to IMM comments w/4/12/95 memo, w/o 6/18/96 memo57996
11/26/1996US Dept of the Interior - Bureau of Reclamation -Current reclamation modeling assumptions for Sacramento River flows w/TL & original draft transmittal ltr to R Sugarek fr P Howard57984
11/26/1996Richard Sugarek / Environmental Protection Agency - Region 9Ken Hunter / Univ of Nevada, RenoROC: IMM metal recovery test63569
11/27/1996Darell Slotton / Ecological Research Assoc -Iron Mountain region fall 96 stream biota preliminary study (final rpt)58000
11/27/1996Jennifer Nielsen / Stanford Univ - Hopkins Marine Station -Molecular genetics of Rainbow Trout & CA Roach in vicinity of IM w/attchs58001
11/27/1996Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Remediation of metal loading at Slickrock Creek & transmits proposal - Further acid & metal collection in Slickrock Creek w/encl58003
11/27/1996Cynthia Wetmore / Environmental Protection Agency - Region 9Richard Hume / CA Environmental Protection Agency - Dept of Toxic Substances ControlROC: 1st amendment to UAO 94-1263607
12/6/1996Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Review of UAO files w/TL57959
12/6/1996Nancy Parker / US Dept of the Interior - Bureau of ReclamationClementine Berger / US Dept of the Interior - Office of the SolicitorComments prepared for litigation defense w/TL to R Sugarek fr K Rae (Privileged, FOIA ex 5)57844
12/6/1996Penny Howard / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Review of Spring Creek reservoir capacity rpt prepared by Stauffer 10/13/9563572
12/8/1996John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Analysis of Boulder Creek mouth data for 12/1 - 4/30 for 94-95 & 95-96 fr Stauffer summary data63571
12/9/1996Richard Torrito / Rhone-Poulenc Legal ServicesKeith Takata / Environmental Protection Agency - Region 9Ltr: Richard Torrito assumes responsibility fr George Goodridge re Boulder Creek treatment plant (UAO 94-12)63612
12/10/1996Gary Chapman / Paladin Water ConsultingRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits poster presentation w/encl57986
12/10/1996Frank Michny / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Reply to request for current Reclamation modeling assumptions for Sacto River flows63573
12/10/1996Dallas Linford / US Dept of the Interior - Bureau of ReclamationLarry Addison / C H 2 M Hill, IncTL: Provides BOR horizontal & vertical survey control points in vicinity of Spring Creek Reservoir63575
12/11/1996Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Transmits 2 administrative record documents for 1st amendment to UAO 94-12 w/encls57987
12/12/1996Hagler Bailly Consulting, IncBreidenbach, Buckley, Huchting, Halm & Hamblet (Attorneys)Preliminary toxicological evaluation re US v IMM, Inc, v1 - data rpt57965
12/12/1996Hagler Bailly Consulting, IncBreidenbach, Buckley, Huchting, Halm & Hamblet (Attorneys)Preliminary toxicological evaluation, US v IMM, Inc, v2 - protocols, standard operating procedures, & quality assurance documentation57966
12/12/1996Hagler Bailly Consulting, IncBreidenbach, Buckley, Huchting, Halm & Hamblet (Attorneys)Preliminary toxicological evaluation, US v IMM, Inc, v3 - raw data & supporting documentation, pt 2 - test phase 960257967
12/12/1996Hagler Bailly Consulting, IncBreidenbach, Buckley, Huchting, Halm & Hamblet (Attorneys)Preliminary toxicological evaluation, US v IMM, Inc, v3 - raw data & supporting documentation, pt 1 - test phase 960157968
12/12/1996Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes re 1st amendment to UAO 94-12 (EPA & Stauffer)57988
12/13/1996Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: 104(e) requests w/TL57960
12/13/1996Stauffer Management CoEnvironmental Protection Agency - Region 9Supplemental rpts submitted on behalf of Rhone-Poulenc as pt of response to water management FS, v74 w/TL w/o diskette57989
12/13/1996Sara Russell / CA Dept of JusticeRichard Sugarek / Environmental Protection Agency - Region 9TL: Data & supporting documentation fr tests re copper toxicity using site waters that mix with discharge fr Spring Creek, v1-363566
12/13/1996C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits Basic Lab rpt 1/31/95 sampling of hematite piles, memo re "Review of Weston docs," & proj sched for Slickrock creek retention w/lab rpt63585
12/13/1996Cynthia Wetmore / Environmental Protection Agency - Region 9 -Teleconference mtg 12/13/96 w/list of possible issues re HDS treatment plant63598
12/13/1996Stauffer Management CoEnvironmental Protection Agency - Region 9Supplemental rpts submitted on behalf of Rhone-Poulenc as pt of response to water management FS, v74 w/TL & diskette of 7-10/96 data files (computer disk only)103164
12/16/1996Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Operation of HDS Plant in accordance with 1st amendment to UAO 94-1257990
12/16/1996Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Request for Lawson Rd cementation plant simulated rainstorm test63586
12/16/1996Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Requests that Stauffer per UAO 94-12 to restore proper surface water drainage in vicinity of Minnesota Flats treatment plant63587
12/16/1996Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Status of Brick Flat Pit sludge discharge63588
12/16/1996C Adamo / C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Summarizes construction facilities & equipment testing performed at high density sludge treatment plant63589
12/16/1996Richard Sugarek / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoTL: AR for 1st amendment to UAO 94-1263590
12/18/1996Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits Rhone-Poulenc comments re HDS start-up & shakedown periods w/attch57991
12/18/1996Joe Coglaiti / Stauffer Management CoJames Pedri / CA Regional Water Quality Control Board - Central Valley RegionLtr: Transmits analytical results of IM AMD neutralization treatment system for 11/96 w/encl63591
12/19/1996C H 2 M Hill, Inc -Draft HDS process overview for O&M manual w/TL to R Sugarek fr J Stefanoff57992
12/19/1996US Dept of the Interior - Bureau of Reclamation -Spring Creek water quality & flow information, Central Valley project (9/18/96 - 12/19/96)57993
12/19/1996John Kemmerer / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: UAO 94-12 terms modified to encourage compliance, w/TL57994
12/20/1996Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Conference call with CH2M Hill & Stauffer re HDS issues w/encl63592
12/22/1996Frank Michny / US Dept of the Interior - Bureau of ReclamationT W Arman / Iron Mountain Mines, IncLtr: Request for additional information re access to Reclamation lands for removal of pyritic material at Matheson63611
12/23/1996Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Brickflat Pit drainage problems w/attchs 1-458004
12/23/1996Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Conference call re Stauffer operation of HDS plant during start-up shake-down63593
12/23/1996Mary MaloneyHuss / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Agreement with J Kemmerer 12/19/96 ltr to B Spiller, with 2 exceptions (UAO 94-12), w/TL63610
12/24/1996Ron Luehring / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Comparison of parameters - SCDD v Teton Dam w/encl63594
12/26/1996Don Mandel / CA Environmental Protection Agency - Dept of Toxic Substances ControlRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Discussion of Stauffer comments & transmits response to comments on water management FS addendum for site 4/96 w/encl58005
1/1/1997US Dept of the Interior - Bureau of ReclamationEnvironmental Protection Agency - Region 9Spring Creek water quality weekly rpts for samples collected 3/24/97-9/17/97 (20 rpts), w/TLs to R Sugarek58209
1/1/1997Stauffer Management CoEnvironmental Protection Agency - Region 9Monthly analytical results of Acid Mine Drainage (AMD) Neutralization Treatment System for 2/97-7/97 (6 rpts), w/TLs58210
1/1/1997C H 2 M Hill, Inc -Aerial photos: 7 11x17 color copies, mine workings 9/3/6858223
1/1/1997Sacramento River Preservation Trust -Newsletter: River Run, summer 199763873
1/2/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Photos: 126 4x6 in color of New Year's storm (taken 12/31/96-1/2/97)58033
1/2/1997Charles Alpers / US Geological SurveyRichard Sugarek / Environmental Protection Agency - Region 9Memo: Change order re Spring Creek Debris Dam fr BOR63638
1/3/1997Malcolm Watts / Stauffer Management CoJim Stefanoff / C H 2 M Hill, IncLtr: Comments on proposed addition to HDS facility O & M manual63599
1/6/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROCs: 1997 storms at site (12/31/96 - 1/6/97)57971
1/6/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Confirms teleconference 1/6/97 re 1st amendment to UAO 94-1257995
1/7/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Draft sections to be modified for inclusion in appendix of O & M manual w/marginalia & TL to R Sugarek fr J Stefanoff58011
1/8/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Photos: 29 6x4 in color of Flat Creek Bridge temporary repair & other site locations including HDS treatment plant (taken 1/4/97-1/8/97)58035
1/8/1997Richard Sugarek / Environmental Protection Agency - Region 9Mary Mosley / Coalition Against United States Exporting DolphinsLtr: Transmits 96 IMM proposed plan & excerpt fr EPA water management FS, w/o encls, w/FOIA request ltr (RIN-9-1491-96)63615
1/8/1997Ralph Jennings / Record Searchlight (Newspaper) -Newsclip: Plant "shrinks" Iron Mountain waste63641
1/8/1997Richard Sugarek / Environmental Protection Agency - Region 9Mary Mosley / Coalition Against United States Exporting DolphinsROC: FOIA request for site info, including history of mining activities & role of Stauffer Chemical (RIN-91491-96)63643
1/10/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Discussion of agenda for 1/15/97 mtg63627
1/13/1997Andy Cramer / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: IMM Enforcement oversight/compliance monitoring (week 1)58007
1/14/1997Richard Sugarek / Environmental Protection Agency - Region 9Megan Zachary / City of AndersonLtr: Summary of Superfund cleanup actions at site63628
1/15/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Mtg notes: HDS start-up plant performance during 1/97 storm event, w/draft response actions58010
1/15/1997Kirk Nordstrom / US Geological Survey
Charles Alpers / US Geological Survey
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Review of Shepherd Miller natural background doc re determination of natural background metals concentrations in Boulder & Slickrock creeks58253
1/15/1997Record Searchlight (Newspaper) -Newsclip: Plant "shrinks" waste63640
1/16/1997Andy Cramer / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: IMM Enforcement oversight/compliance monitoring (week 2)58006
1/16/1997T W Arman / Iron Mountain Mines, IncSteve Card / Meridian Table Mountain QuarryLtr: Authorization to enter site for purchase of rip rap ballast material w/TLs63625
1/17/1997Ecological Research Assoc -Documentation pertaining to IMM region fall 96 stream biota preliminary study w/TL to R Sugarek fr J Spitzley58008
1/17/1997Valerie Connor / CA Regional Water Quality Control Board - Central Valley Region
Emilie Reyes / CA Regional Water Quality Control Board - Central Valley Region
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Metal toxicity to EPA bioassay species in water samples collected downstream fr Keswick reservoir (88-93)58013
1/17/1997Gerald Vogt / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Activity description for Spring Creek Reservoir, Spring Creek Arm & Keswick Reservoir sediment study63685
1/20/1997Mary MaloneyHuss / Stauffer Management CoT W Arman / Iron Mountain Mines, IncLtr: Rip Rap & Ballast material at site, w/TL 1/21/9763623
1/21/1997C H 2 M Hill, Inc -IM Creek system sampling locations & 4 photos 4x6 in color of Brick Flat Pit discharges (taken 12/10/96) w/TL to R Sugarek fr J Spitzley 1/21/9763629
1/22/1997T W Arman / Iron Mountain Mines, IncMary MaloneyHuss / Stauffer Management CoLtr: Rip rap & ballast material & damages to IM properties, w/encls & TL to R Sugarek fr T Arman63614
1/23/1997James Tjosvold / CA Environmental Protection Agency - Dept of Toxic Substances ControlRichard Sugarek / Environmental Protection Agency - Region 9Ltr: State concurrence with proposed 4th interim record of decision (ROD) for collection and treatment of Slick Rock Creek flows63613
1/24/1997T W Arman / Iron Mountain Mines, IncMary MaloneyHuss / Stauffer Management CoLtr: Commercial materials at site63621
1/24/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: HDS treatment plant63630
1/28/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Tunnel fr HDS plant site to Spring Creek, w/attchs58272
1/28/1997Joe Coglaiti / Stauffer Management CoJames Pedri / CA Regional Water Quality Control Board - Central Valley RegionLtr: Heavy 12/96 rains affect Brick Flat Pit filtrate system & transmits analytical results of AMD neutralization treatment system for 12/96, w/encl63644
1/29/1997Basic LaboratoryPaul Ekoniak / Zeneca IncSummary of January rainfall & Basic Lab rpt sheets for 1/96 w/TL to J Spitzley fr P Ekoniak 2/2/9758018
1/29/1997T W Arman / Iron Mountain Mines, IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Proposal to sell commercial materials at site63617
1/29/1997Mary MaloneyHuss / Stauffer Management CoT W Arman / Iron Mountain Mines, IncLtr: Response to 1/22/97 ltr requesting reimbursement for damages at site63624
1/30/1997T W Arman / Iron Mountain Mines, IncRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Removal of iron ore tailings fr stockpile owned by IMMI at site63618
1/30/1997Mary MaloneyHuss / Stauffer Management CoT W Arman / Iron Mountain Mines, IncLtr: Response to 1/24/97 ltr re removal of materials fr site, w/TL63620
1/31/1997James Hawley / Basic LaboratoryPaul Ekoniak / Stauffer Management CoSampling data w/TL fr P Ekoniak to A Cramer 2/5/9758016
2/1/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Tailings investigation58014
2/1/1997Dan Mares / US Dept of the Interior - Bureau of Reclamation
Lawrence Von Thun / US Dept of the Interior - Bureau of Reclamation
-Supplemental modification decision analysis (MDA) decision memo & rpt on risk assessment of Spring Creek Dam Debris, w/marginalia & TL, 3/31/9758086
2/1/1997Jerry Marcus / NONEJerry Marcus / NONEArticle: Closing BHPs Island Copper mine - a study in dignity, honor & pride [Engineering & Mining Journal (E&MJ), February 1997, 28WW-34WW+]58151
2/5/1997US Geological SurveyEnvironmental Protection Agency - Region 9Draft SOW & budget, Spring Creek Reservoir, Spring Creek Arm & Keswick Reservoir sediment study, w/TLs to R Sugarek fr C Alpers58090
2/5/1997Richard Sugarek / Environmental Protection Agency - Region 9T W Arman / Iron Mountain Mines, IncLtr: IMMI proposed sales of hematite63631
2/5/1997US Geological SurveyEnvironmental Protection Agency - Region 9Draft SOW & budget, Spring Creek Reservoir, Spring Creek Arm & Keswick Reservoir sediment study, w/TL to R Sugarek fr C Alpers (original)63686
2/6/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Enforcement oversight/compliance monitoring, week 358015
2/6/1997US Dept of the Interior - Bureau of ReclamationDennis Heiman / CA Regional Water Quality Control Board - Central Valley Region
Don Mandel / CA Dept of Health Services - Toxic Substances Control Div
John Spitzley / C H 2 M Hill, Inc
Spring Creek/Below Keswick January 1997 storm data for water samples collected 12/30/96-1/8/97, w/TL to R Sugarek fr K Rae58156
2/7/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9TL: IMM tailings investigation63632
2/10/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Performance testing re sludge bed w/HDS plant agenda58017
2/10/1997Robert Huggett / Environmental Protection Agency - Office of Research & DevelopmentEnvironmental Protection AgencyMemo: Peer review evaluation audit protocol & process, w/attchs & marginalia58089
2/10/1997Andy Cramer / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9Memo: Enforcement oversight/compliance monitoring (week 4) w/TL63633
2/11/1997C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Photos: 23 in color of settling ponds, emergency storage tank & Flat Creek Bridge, TV interview with Mat Madison, w/TL58025
2/11/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Performance testing & transmits results of effluent (HDS thickener overflow) w/encl63634
2/12/1997Michael Smith / C H 2 M Hill, IncKeith Takata / Environmental Protection Agency - Region 9Ltr: Discusses decision to implement high density sludge (HDS) treatment process63687
2/13/1997US Dept of the Interior - Bureau of ReclamationPaul Fujitani / US Dept of the Interior - Bureau of ReclamationSpring Creek water quality rpts (12/30/96 - 2/13/97), w/TLs to R Sugarek fr J Martin58026
2/13/1997C Adamo / C H 2 M Hill, IncDoug Yates / EIMCO Process Equipment CoLtr: Receipt of thickener drive oil seal replacement, HDS treatment plant, w/attchs58106
2/13/1997Richard Sugarek / Environmental Protection Agency - Region 9Elizabeth Katz / US Dept of Health & Human ServicesROC: Health issues re Lawson rehab63635
2/14/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Matthew Powell / Wilke, Fleury, Hoffelt, Gould & Birney (Attorneys)Ltr: Confidential business information contained in Morrison Knudsen documents63636
2/14/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests that CH2MHill send all rpts with electronic version63637
2/14/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests CH2M Hill send analytical rpts with electronic version, w/attch63688
2/17/1997C Adamo / C H 2 M Hill, IncJoe Coglaiti / Stauffer Management CoMemo: Thickener drive oil seal replacement required, HDS treatment plant, w/o attch63718
2/18/1997Joe Coglaiti / Stauffer Management CoJames Pedri / CA Regional Water Quality Control Board - Central Valley RegionLtr: Transmits analytical results of IM AMD neutralization treatment system for 1/97 w/encl63689
2/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncLtr: Requests samples of 3 process flow streams fr aerated simple mix/high density sludge (ASM/HDS) treatment plant63690
2/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v76 (without disk)58053
2/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v75 (w/o disk)58054
2/21/1997Mary MaloneyHuss / Stauffer Management CoMichael Hingerty / Environmental Protection Agency - Region 9Ltr: Supplemental rpts v75 & 76 submitted on behalf of Rhone-Poulenc for inclusion in administrative record63691
2/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v75 (disk only)103377
2/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v76 (disk only)103461
2/24/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9
Cynthia Wetmore / Environmental Protection Agency - Region 9
Memo: Transmits videotape & photos of sludge haulage test conducted by Stauffer (SMC) 2/24/97, w/o videotape, w/photos58101
2/24/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Description of Stauffer (SMC) sludge dump test63692
2/24/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Knowledge re Stauffer (SMC) sludge haul test63693
2/25/1997Umetaro Yamaguchi / Metal Mining Agency of JapanRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Thanks EPA staff for 2/12/97 site tour & discussions re remedial project63695
2/27/1997Kent Kitchingman / Environmental Protection Agency - Region 9Richard Torrito / Rhone-Poulenc Basic Chemicals CoLtr: Notice that Stauffer (SMC) sludge haul test violates UAO 94-12, w/encl58077
2/27/1997Robert Claire / Morrison Knudsen CorpLloyd Freese / Stauffer Management CoMemo: Proposal for emergency repairs to Slickrock Creek water diversion, w/TL to R Sugarek fr L Erickson63696
2/27/1997Robert Claire / Morrison Knudsen CorpLloyd Freese / Stauffer Management CoMemo: Proposal for emergency repairs to Slickrock Creek water diversion, w/TLs to R Sugarek fr L Erickson63697
2/28/1997Sacramento County -Prelim scope & budget for phase 3 of Sacramento River Toxic Pollutant Control Program (SRTPCP), for 3/10/97 mtg, w/calendar of events & TL fr R Shanks58092
2/28/1997C H 2 M Hill, Inc -Preliminary figures for upcoming Keswick precipitation rpt, w/TL to K Rae fr J Spitzley58094
3/3/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review comments on 2/27/97 ltr requesting approval for emergency repair of Slickrock Creek clean water diversion (faxed)63698
3/3/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review comments on 2/27/97 ltr requesting approval for emergency repair of Slickrock Creek clean water diversion, w/TL to L Erickson, 3/11/9763703
3/3/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review comments on 2/27/97 ltr requesting approval for emergency repair of Slickrock Creek clean water diversion, w/TL to R Sugarek, 3/12/9763704
3/4/1997Richard Torrito / Rhone-Poulenc Legal ServicesKent Kitchingman / Environmental Protection Agency - Region 9Ltr: Responds to 2/27/97 notice of violation ltr63699
3/7/1997Jim Stefanoff / C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Response actions for thickener center column pumpage failure, w/TL to C Wetmore fr J Spitzley 3/12/9763719
3/12/1997John Spitzley / C H 2 M Hill, IncJoe Coglaiti / Stauffer Management CoROC: Operations of filtrate sump63705
3/13/1997 - -Upper Spring Creek data for dissolved & total metal samples collected 9/26/83-12/15/93 & 12/12/95-12/30/96, w/TL to R Sugarek fr A Cramer58160
3/13/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Flow, concentration & load data63753
3/14/1997James Hawley / Basic LaboratoryPaul Ekoniak / Zeneca IncBasic Lab rpt sheets for 2/97-3/97, w/TL to J Spitzley fr P Ekoniak 4/8/9758084
3/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v7858052
3/21/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v7758055
3/21/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Water management RI/FS supplemental rpts v77 submitted on behalf of Rhone-Poulenc for inclusion in administrative record63706
3/24/1997T W Arman / Iron Mountain Mines, IncMary MaloneyHuss / Stauffer Management CoLtr: Responds to 1/29/97 ltr re info known about toxic heavy metals & environ problems at site prior to T Arman ownership of property, w/o encls63707
3/25/1997C Adamo / C H 2 M Hill, IncJoe Coglaiti / Stauffer Management CoMemo: Verifies transfer of spare parts for HDS treatment plant, w/attch63720
3/26/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mark Wideman / Wilke, Fleury, Hoffelt, Gould & Birney (Attorneys)Ltr: Responds to inquiry re supplement 8 to administrative record for Spring Creek Debris Dam OU & recent biological studies63874
3/26/1997Cynthia Wetmore / Environmental Protection Agency - Region 9Joe Coglaiti / Stauffer Management CoLtr: Whether site conditions warrant changing to single reactor operations of high density sludge (HDS) plant63708
3/31/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Proposes hydraulic testing during week of 4/14/97 to evaluate how water enters into Richmond Mine workings, w/attchs63709
3/31/1997Lee Erickson / Zeneca IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Slope stability of Slickrock Creek clean water diversion63710
3/31/1997Richard Sugarek / Environmental Protection Agency - Region 9Alice Thomas, Resident / City of ReddingROC: Exposure/death of miner related to re-opening of Lawson Tunnel63755
4/1/1997C H 2 M Hill, IncEnvironmental Protection AgencyDrawings: Construction of high density sludge (HDS) treatment plan, subcontract record documents58103
4/1/1997C H 2 M Hill, IncEnvironmental Protection AgencyOversize drawings: Construction of high density sludge (HDS) treatment plant, subcontract record documents (mapcase)58104
4/1/1997US Dept of the Interior - Bureau of Reclamation -New Years Flood of 1997 - summary of operations of US Bureau of Reclamation Central Valley project during record flood in CA58152
4/3/1997Joe Coglaiti / Stauffer Management CoCynthia Wetmore / Environmental Protection Agency - Region 9Ltr: In response to 3/26/97 ltr, undertaking switch to single reactor operation of HDS plant, w/TL to C Wetmore fr L Erickson63721
4/3/1997Joe Coglaiti / Stauffer Management CoJim Stefanoff / C H 2 M Hill, IncMemo: Transmits section 2.1.4 of HDS O&M manual & recommends scale manufacturer, w/attch63722
4/8/1997Don Mandel / CA Dept of Health Services - Toxic Substances Control DivRichard Sugarek / Environmental Protection Agency - Region 9Multi-site cooperative agreement (MSCA) site workplan, fiscal year 1997-1998, w/TL to R Sugarek fr Don Mandel63921
4/10/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Approval of 2 requests for samples of acid mine drainage (AMD) for testing purposes, w/encls & TL to T Bloomfield fr M MaloneyHuss63711
4/11/1997T W Arman / Iron Mountain Mines, IncLee Erickson / Zeneca IncLtr: Responds to fax re sample collection release & indemnity, choosing not to authorize further taking of acid mine drainage (AMD)/water rights63712
4/14/1997Mary MaloneyHuss / Stauffer Management CoValerie Connor / CA Regional Water Quality Control Board - Central Valley RegionLtr: Response to 3/7/97 ltr requesting Sacramento River watershed water quality data, w/attch58082
4/14/1997Mary MaloneyHuss / Stauffer Management CoValerie Connor / CA Regional Water Quality Control Board - Central Valley RegionLtr: Response to 3/7/97 ltr requesting Sacramento River watershed water quality data, w/attch & fax TL to L Erickson fr M MaloneyHuss58083
4/16/1997Mary MaloneyHuss / Stauffer Management CoDavid Glazer / US Dept of Justice
Christina Nyhan / Breidenbach, Buckley, Huchting, Halm & Hamblet (Attorneys)
Ltr: Rhone-Poulenc (RP) has rereviewed its files to determine if any additional docs relevant to sucessor liability theories (US vs IMMI)63713
4/17/1997Lee Bunnell, Resident / City of ReddingRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests information on status of proposed action at site, w/copy of envelope (Privileged - FOIA ex 6)58206
4/17/1997Resident / City of ReddingRichard Sugarek / Environmental Protection Agency - Region 9(Redacted, FOIA ex 6) Ltr: Requests information on status of proposed action at site, w/copy of envelope63924
4/18/1997Environmental Protection Agency - Region 9Richard Sugarek / Environmental Protection Agency - Region 9Quarterly (Oct-Dec 1996) review of CA Dept of Health Services - Toxic Substances Control multi-site cooperative agreement, w/TL fr R Loftin58198
4/18/1997Richard Sugarek / Environmental Protection Agency - Region 9Karl Longley / CA State Univ, Fresno
Will Stringfellow / Lawrence Berkeley Laboratory
ROC: Resource recovery pilot test63714
4/21/1997Jennifer Ballard, Resident / City of ReddingJoe Coglaiti / Stauffer Management CoLtr: Requests sample fr site for chemistry project, w/TL to R Sugarek fr L Erickson 4/25/97 (Privileged - FOIA ex 6)58205
4/21/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9TL: EPA water management RI/FS, supplemental rpts volume 78 sent to R Sugarek on behalf of Rhone-Poulenc for inclusion in AR63756
4/21/1997Resident / City of ReddingJoe Coglaiti / Stauffer Management Co(Redacted, FOIA ex 6) Ltr: Requests sample fr site for chemistry project, w/TL to R Sugarek fr L Erickson 4/25/9763925
4/23/1997Shepherd Miller, Inc -Technical memo: Response to declaration of R Sugarek in support of plaintiff & counterclaim defendant USA opposition to Rhone-Poulenc motion, w/figure58254
4/23/1997Shepherd Miller, Inc -Technical memo: Response to plaintiff & counterclaim defendant USA memo of points & authorities submitted in opposition to Rhone-Poulenc motion58255
4/23/1997Shepherd Miller, Inc -Technical memo: Responses to K Nordstrom & C Alpers comments, attachment 1 to declaration of R Sugarek 3/13/9758256
4/23/1997Shepherd Miller, Inc -Technical memo: Responds to conclusions reached by CH2M Hill re concentrations of metals in Catfish Pond, w/attchs58257
4/24/1997Stephen Hansen / S R Hansen & AssocStauffer Management CoResponse to affidavit of R Sugarek 3/13/97 filed in opposition of Rhone-Poulenc motion with respect to naturally occurring substances58258
4/24/1997James Pompy / CA Dept of Conservation - Office of Mine ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests access to talus slope at Slickrock Creek for ground roughness surveys & list of contact people63759
4/25/1997John Spitzley / C H 2 M Hill, IncThomas Bloomfield / Environmental Protection Agency - Region 9Memo: Bibliography of pre-1968 publications on acid mine drainage63760
5/1/1997Basic LaboratoryPaul Ekoniak / Stauffer Management CoBasic Laboratory Rpt for Boulder Creek study & metal loading samples collected 3/14/97-4/15/97, w/TL to J Spitzley fr P Ekoniak58154
5/5/1997Bill Walker / Shasta County - Dept of Resource ManagementT W Arman / Iron Mountain Mines, Inc
Val Ungvari / US Dept of the Interior - Bureau of Reclamation
Ltr: Determination of whether IMM activity subject to CA Surface Mining & Reclamation Act (SMARA)63754
5/6/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Teleconference with USGS & CH2M Hill re naturally occurring releases (Privileged - FOIA ex 5)58240
5/6/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Technical/settlement mtg agenda & notes, w/copper & zinc concentrations & Boulder Creek remedial alternatives study (Privileged - FOIA ex 5)58277
5/7/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9TL: Computer disk, Excel 5 spreadsheet of onsite and offsite water quality data, 11/26/96-2/27/9758208
5/7/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Margaret Kimball / Stanford UnivLtr: Confirms 4/30/97 telephone conversation re reproduction & use of Stauffer Chem documents, w/TL headers63875
5/13/1997Jennifer Nielsen / Stanford Univ - Hopkins Marine StationTim Hamaker / NONEMemo: Receipt of site biological investigations file63876
5/15/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Bunnell, Resident / City of ReddingLtr: Discusses status of proposed plan (Privileged - FOIA ex 6)58207
5/15/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v79, w/ltr to T Bloomfield fr M MaloneyHuss58225
5/15/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Proposal for technical mtg to discuss site maintenance, data acquisition & interpretation63666
5/15/1997Richard Sugarek / Environmental Protection Agency - Region 9Resident / City of Redding(Redacted, FOIA ex 6) Ltr: Discusses status of proposed plan63923
5/16/1997John Spitzley / C H 2 M Hill, IncJane Kay, Resident / City of San FranciscoTL: Public comment water management FS addendum (Privileged - FOIA ex 6)58204
5/16/1997John Spitzley / C H 2 M Hill, IncResident / City of San Francisco(Redacted, FOIA ex 6) TL: Public comment water management FS addendum63926
5/19/1997James Hawley / Basic LaboratoryPaul Ekoniak / Stauffer Management CoBasic Laboratory Rpt for Boulder Creek study & metal loading samples collected 4/16/97-4/30/97 & 12/30/96 (amended), w/TL to J Spitzley fr P Ekoniak58155
5/19/1997Cynthia Wetmore / Environmental Protection Agency - Region 9Lee Erickson / Zeneca IncROC: Phone messages re changes in sludge monitoring operations & fix-it proposal63761
5/22/1997Richard Sugarek / Environmental Protection Agency - Region 9Jeff Berman / Mining Law Education Project
Val Ungvari / US Dept of the Interior - Bureau of Reclamation
TL: Requested slides of clean up action at site63757
5/23/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoLtr: EPA elects to not change amendment to order #94-12 re reporting requirements per Rhone-Poulenc comments, w/responses58161
5/23/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests mechanical investigation of acid mine drainage (AMD) reactor system due to baffle & mountings failure, w/memo to F Peter fr T Haldas63912
5/23/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests mechanical investigation of AMD reactor system due to baffle & mountings failure, w/memo to F Peter fr T Haldas (faxed)63928
5/27/1997CALFED Bay-Delta Program -Summary of tech team rpts - stressors & example restoration actions, request for proposals, 1997 cat 3, ecosystem restoration projects & progs & TL58168
5/28/1997James Hawley / Basic LaboratoryPaul Ekoniak / Stauffer Management CoBasic Laboratory Rpt for Boulder Creek study & metal loading samples collected 5/1/97-5/15/97, w/TL to J Spitzley fr P Ekoniak58162
5/29/1997William Gibbons / US Dept of the Interior - Bureau of Reclamation -Declaration of William Gibbons in the case of USA & CA vs IMMI, et al, w/attchs58163
5/29/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Call & follow up discusses sludge haul technical requirements63758
5/29/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoROC: Call discusses high density sludge (HDS) reactor fix-it63762
5/29/1997Richard Sugarek / Environmental Protection Agency - Region 9Larry Well / NONEROC: Conference call re engineering information for aerated simple mix (ASM) sludge haul63763
5/30/1997Paul Fujitani / US Dept of the Interior - Bureau of Reclamation -Declaration of Paul Fujitani in the case of USA & CA vs IMMI, et al, w/attch58164
5/30/1997Lowell Ploss / US Dept of the Interior - Bureau of Reclamation -Declaration of Lowell Ploss in the case of USA & CA vs IMMI, et al, w/attchs58165
5/30/1997Sacramento River Watershed ProgramSacramento River Watershed ProgramSacramento River Watershed Program (SRWP) draft phase 1 monitoring plan, w/TL to SRWP stakeholders fr Monitoring Subcommittee 6/2/9758166
5/30/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: RD for Finazzo property63664
5/30/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Response to Stauffer ltr of 5/23/97 re acid mine drainage (AMD) reactor systems investigation & modifications63764
5/30/1997Rhonda Bowers / US Forest ServiceUS District Court - Eastern District of CaliforniaDeclaration in matter of USA & CA v Iron Mountain Mines, Inc, et al re Golinsky Mine site63765
6/1/1997Morrison Knudsen CorpStauffer Management CoBrick Flat Pit (BFP) sludge sampling & analysis plan, w/map of sampling locations & TL to R Sugarek fr L Erickson 6/16/9758169
6/1/1997Morrison Knudsen CorpStauffer Management CoSlope stability analysis for gully at Slickrock Creek diversion embankment, w/TL to R Sugarek fr L Erickson 7/3/9758172
6/2/1997William Lyman / Shasta County - Dept of Public WorksRon Matheny / Zeneca IncLtr: Repairs to bridge on Iron Mountain Rd at Flat Creek63672
6/5/1997Keith Takata / Environmental Protection Agency - Region 9T W Arman / Iron Mountain Mines, Inc
Rhone-Poulenc, Inc
2nd amendment to order #94-12 (draft), w/TLs to M Padilla fr T Bloomfield (Privileged - FOIA ex 5)58167
6/11/1997James Pompy / CA Dept of Conservation - Office of Mine ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests access to talus slope at Slickrock Creek for ground roughness surveys & list of contact people63766
6/11/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Discusses Stauffer performance of non-warranty modifications & repairs to acid mine drainage (AMD) treatment system63767
6/11/1997James Pompy / CA Dept of Conservation - Office of Mine ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests access to talus slope at Slickrock Creek for ground roughness surveys & list of contact people (faxed)63929
6/11/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Discusses Stauffer performance of non-warranty modifications & repairs to acid mine drainage (AMD) treatment system (faxed)63930
6/13/1997Jalayne Mccune / Environmental Protection Agency - Region 9 -Fact sheet: Iron Mountain Mine63768
6/16/1997C Adamo / C H 2 M Hill, IncJoe Coglaiti / Stauffer Management CoTL: High density sludge (HDS) treatment plant subcontract #118 site coordination record documents63715
6/17/1997Keith Takata / Environmental Protection Agency - Region 9Richard Torrito / Rhone-Poulenc, Inc
T W Arman / Iron Mountain Mines, Inc
Ltr: Discusses 2nd amendment to order #94-12 & transmits amendment, w/mail receipts #P765-056-921 & #P765-056-92258170
6/17/1997Keith Takata / Environmental Protection Agency - Region 9T W Arman / Iron Mountain Mines, Inc
Richard Torrito / Rhone-Poulenc, Inc
Ltr: Discusses 2nd amendment to order #94-12 & transmits amendment, w/o mail receipt #P765-056-922, w/#P765-056-921 & attch58268
6/17/1997John Kemmerer / Environmental Protection Agency - Region 9James Tjosvold / CA Environmental Protection Agency - Dept of Toxic Substances ControlLtr: Plans for 2nd amendment to order #94-12 re high density sludge (HDS) treatment63770
6/17/1997Keith Takata / Environmental Protection Agency - Region 9Richard Torrito / Rhone-Poulenc, IncLtr: Discusses 2nd amendment to order #94-12 & transmits amendment, w/o mail receipts #P765-056-921 & #P765-056-922 (concurrence copies)63856
6/19/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Possible dates for technical review mtg63771
6/23/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoROC: Conference call to discuss 1997 storm fix-its63663
6/25/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Memo: Conference call 6/24/97 between EPA, CH2M Hill & Stauffer (SMC) re HDS modifications to treatment plant63934
6/26/1997Tom Haldas / Zeneca Inc -Acid mine drainage (AMD) reactor baffle design calculations, w/TL to R Sugarek fr F Peter 7/3/9763776
6/27/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on Brick Flat Pit (BFP) sludge sampling & analysis plan (SAP) prepared by Morrison-Knudsen Corp, w/TL to L Erickson fr J Spitzley63772
6/27/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Additional comments on Brick Flat Pit (BFP) sludge sampling & analysis plan (SAP) prepared by Morrison-Knudsen Corp63773
6/30/1997EIMCO Process Equipment CoC H 2 M Hill, IncHigh density sludge treatment plant operation & maintenance manual, v1 of 5 (instructions), w/TL to J Coglaiti fr C Adamo58070
6/30/1997EIMCO Process Equipment CoC H 2 M Hill, IncHigh density sludge treatment plant operation & maintenance manual, v2 of 5 (parts lists & drawings)58071
6/30/1997EIMCO Process Equipment CoC H 2 M Hill, IncHigh density sludge treatment plant operation & maintenance manual, v3 of 5 (drawings & accessory equipment instructions)58072
6/30/1997EIMCO Process Equipment CoC H 2 M Hill, IncHigh density sludge treatment plant operation & maintenance manual, v4 of 5 (accessory equipment instructions)58073
6/30/1997EIMCO Process Equipment CoC H 2 M Hill, IncHigh density sludge treatment plant operation & maintenance manual, v5 of 5 (accessory equipment instructions)58074
6/30/1997Environmental Protection Agency - Region 9 -Draft FY 97 MSCA workplan (7/1/96 - 6/30/97)63365
7/1/1997Morrison Knudsen CorpStauffer Management CoHigh density sludge (HDS) workplan, w/TL to R Sugarek fr L Erickson 7/3/9758174
7/1/1997Mining Remedial Recovery Co, Inc
Adrian Brown Consultants, Inc
-Water quality data for samples taken Fall 1996-Spring 1997 for W Squaw Creek, Little Backbone Creek & Spring Creek, Shasta County, CA, w/o oversize maps58203
7/1/1997Sacramento River Watershed Program -Calendar of events & mtgs, July-September 199763805
7/3/1997Keith Takata / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Compliance with administrative orders (AO) #94-12 & #91-7, as amended63774
7/9/1997Anne Connell / Morrison Knudsen CorpJohn Spitzley / C H 2 M Hill, IncTL: Data disk for "Slickrock diversion embankment at gully washout, slope stability analysis" dated 6/18/9763777
7/9/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Design criteria for IMM aerated simple mix (ASM) treatment plant per administrative orders #93-1 & #94-1263780
7/9/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Teleconference on 7/23/97 mtg agenda development63935
7/10/1997C W McClung / Mountain Copper Co, Ltd -Site historical records - C McClung, 2/19/43-3/5/71, w/CH2M Hill compendium58215
7/10/1997Joe Huseby / Mountain Copper Co, Ltd -Site historical records - J Huseby, 4/23/32-8/5/96, w/CH2M Hill compendium58216
7/10/1997John Basham / Mountain Copper Co, Ltd -Site historical records - J Basham, 2/21/10-4/14/50, w/CH2M Hill compendium (w/o oversize parts)58217
7/10/1997Albert Burch / Mountain Copper Co, Ltd -Site historical records - A Burch, 5/26/04-6/9/43, w/CH2M Hill compendium58218
7/10/1997L Kett / Mountain Copper Co, Ltd -Site historical records - L Kett, 9/24/34-8/3/61, w/CH2M Hill compendium58219
7/10/1997L Mannion / Stauffer Chemical Co -Site historical records - L Mannion, 5/2/58-1/28/86, w/CH2M Hill compendium58220
7/10/1997Lee Erickson / Zeneca IncJohn Spitzley / C H 2 M Hill, Inc
Richard Sugarek / Environmental Protection Agency - Region 9
Memo: Confirmation of conference call re test sludge haul, w/contour map of test pad for high density sludge (HDS) workplan (fig 2)63778
7/10/1997Karl Longley / CA State Univ, FresnoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Discusses proposed resource recovery project test & access to site63779
7/10/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Conference call re high density sludge (HDS) workplan for test haul, w/list of particpants63781
7/13/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Summarizes 7/10/97 conference call re Brick Flat Pit (BFP) high density sludge (HDS) workplan for test haul, w/attch63782
7/14/1997US Fish & Wildlife Service -Draft agenda & participant phone #s for 7/21/97 trustees conference call, w/fax TL (Privileged - FOIA ex 5)58241
7/14/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoLtr: Proposed sampling prior to design of high density sludge (HDS) field tests & construction of Brick Flat Pit sand road per 7/10/97 call, w/attch63783
7/14/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mark Wideman / Wilke, Fleury, Hoffelt, Gould & Birney (Attorneys)Ltr: Transmits requested electronic copy of AR & requests electronic versions of Rhone-Poulenc privilege logs, w/o encl63785
7/14/1997C Adamo / C H 2 M Hill, IncJohn Spitzley / C H 2 M Hill, IncOperation & maintenance (O&M) construction & 1997 storm repairs scheduled for 1997 season, w/handwritten notes to J Spitzley fr C Adamo63922
7/15/1997John Spitzley / C H 2 M Hill, Inc
Jim Stefanoff / C H 2 M Hill, Inc
Roger Lindquist / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Slickrock Creek order information58273
7/15/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: EPA approves 2, disapproves 1 & after further review will respond to other proposed SMC storm repair projects & requests additional information63784
7/16/1997Richard Sugarek / Environmental Protection Agency - Region 9John Spitzley / C H 2 M Hill, IncROC: Conference call re Brick Flat Pit (BFP) liner & riser pipes repairs & sludge hauls, includes list of participants58175
7/16/1997Environmental Protection Agency - Region 9Richard Sugarek / Environmental Protection Agency - Region 9Quarterly (Jan-Mar 1997) review of CA Dept of Health Services - Toxic Substances Control multi-site cooperative agreement, w/TL fr R Loftin58199
7/16/1997T W Arman / Iron Mountain Mines, IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Response to EPA 7/3/97 ltr re administrative orders (AO) #94-12 & #91-7 requiring site operation & maintenance (O&M)63786
7/17/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Response to EPA 7/3/97 ltr re order 94-12 as amended & order 91-7 as amended, w/TL to K Takata fr B Spiller63868
7/17/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Response to EPA 7/3/97 ltr re order 94-12 as amended & order 91-7 as amended63865
7/17/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Response to EPA 7/3/97 ltr re order 94-12 as amended & order 91-7 as amended, w/marginalia63866
7/17/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Response to EPA 7/3/97 ltr re order 94-12 as amended & order 91-7 as amended, w/TL fr A DeCristoforo 7/18/9763867
7/22/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v80, w/ltr to T Bloomfield fr M MaloneyHuss58229
7/22/1997Gerald Vogt / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Mtg scheduled to discuss CH2MHILL RI activities on sediments at Keswick & Spring Creek reservoirs63787
7/22/1997Keith Takata / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Administrative orders #94-12 & #91-7, as amended re continued site O&M independent of other issues63788
7/22/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9
Cynthia Wetmore / Environmental Protection Agency - Region 9
Memo: Evaluation of acid mine drainage (AMD) volume & associated volumes of high density sludge (HDS) & aerated simple mix (ASM) sludge, w/attch63789
7/23/1997Richard Sugarek / Environmental Protection Agency - Region 9 -EPA/Stauffer (SMC) technical review mtg notes, agenda & handouts58278
7/25/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Photos: 25 4X6 in color, site visit for Brick Flat Pit (BFP) liner failure, w/TL to R Sugarek fr J Spitzley58158
7/25/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: SMC unable to commit to continuous operation of high density sludge (HDS) treatment plant due to plant design & operations concerns, w/list58176
7/25/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: SMC unable to commit to continuous operation of high density sludge (HDS) treatment plant due to plant design & operations concerns, w/list & TL58237
7/25/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Brick Flat Pit (BFP) liner failure & inspection, w/configuration of slope lining system63790
7/26/1997Kirk Nordstrom / US Geological SurveyCharles Alpers / US Geological SurveyChapter: Geochemistry of acid mine water (Reviews in Economic Geology, v7A, 1-28, Society of Economic Geologists), w/TL fr K Nordstrom58177
7/28/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Stauffer declines to replace Flat Creek bridge63651
7/28/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Voice mail re plan needed for aerated simple mix (ASM) sludge haul to Brick Flat Pit (BFP)63791
7/28/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Brick Flat Pit (BFP) liner failure & reinspection, w/configuration of slope lining system63792
7/29/1997Materials Testing, IncC H 2 M Hill, IncRed sludge moisture & density test results, w/TL to R Sugarek fr John Spitzley 7/30/9758201
7/29/1997Materials Testing, IncC H 2 M Hill, IncRed sludge moisture & density test results, w/cover sheet 7/30/97 & TL to J Spitzley fr D King58267
7/29/1997William Lyman / Shasta County - Dept of Public WorksRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Iron Mountain Rd bridge replacement at Flat Creek63648
7/30/1997John Spitzley / C H 2 M Hill, IncBrad Hubbard / US Army Corps of EngineersROC: Call discusses Army Corps of Engineers permits for Flat Creek Bridge replacement, w/Federal Register pp & TL to R Sugarek fr J Spitzley 8/1/9758178
7/30/1997Jim Schneider / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review of SMC proposed "1997 civil work" & slope stability analysis - Upper Slickrock clean water diversion embankment58179
7/30/1997James Hawley / Basic LaboratoryPaul Ekoniak / Zeneca IncBasic Lab rpt sheets for 6/97-7/97, w/TL to J Spitzley fr P Ekoniak 8/5/9758141
7/30/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses aerated simple mix (ASM) sludges proposed for Brick Flat Pit (BFP), inspection of site & liner & 1997 storm repairs63793
7/30/1997Frank Michny / US Dept of the Interior - Bureau of ReclamationRichard Sugarek / Environmental Protection Agency - Region 9Ltr: EPA action to ensure continued use of Flat Creek bridge63864
7/31/1997 - -Info for SOW - phase 1 preliminary engineering schedule & bridge construction excerpt, w/TL header to R Sugarek fr B Morrison58180
7/31/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Site visit scheduling for Upper Spring Creek diversion pipeline inspection & transmits responses to EPA comments re 1997 storm repairs58181
7/31/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses high density sludge (HDS) test haul & 1997 storm repairs63795
8/1/1997Brad Shipley / Environmental Protection Agency - Region 9
Richard Sugarek / Environmental Protection Agency - Region 9
Keith Takata / Environmental Protection Agency - Region 9Action memo: Request for removal action for replacement of Flat Creek bridge on IM Rd, w/App A-F58067
8/1/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Draft addenda to field sampling plan (FSP), quality assurance project plan (QAPP) & site safety plan for RI sediment study sampling58182
8/1/1997Steven Towers / North State Resources, IncTim Hamaker / C H 2 M Hill, IncTechnical memo: Avian surveys, w/count by common bird-name & maps58183
8/1/1997Morrison Knudsen CorpStauffer Management CoWorkplan for HDS (high density sludge) test haul (revised), w/TL to R Sugarek fr L Erickson 8/29/9758191
8/1/1997Brad Shipley / Environmental Protection Agency - Region 9Keith Takata / Environmental Protection Agency - Region 9Action memo: Request for removal action for replacement of Flat Creek bridge on IM Rd, w/o appendixes (unsigned concurrence copy)58221
8/1/1997C H 2 M Hill, Inc -Photos: 148 4x6 & 130 5x5 in color, site visit58222
8/1/1997CALFED Bay-Delta Program -Draft CALFED water quality component rpt58244
8/1/1997Cynthia Wetmore / Environmental Protection Agency - Region 9Jeannie Holler / Environmental Protection Agency - Region 9
Brad Shipley / Environmental Protection Agency - Region 9
Memo: Time critical nature of Flat Creek Bridge repair & CH2MHILL involvement in project63796
8/1/1997Environmental Protection Agency - Region 9 -Site management plan63797
8/1/1997Sacramento River Watershed ProgramRichard Sugarek / Environmental Protection Agency - Region 9Newsletter: Waterways, issue 263855
8/1/1997John Kemmerer / Environmental Protection Agency - Region 9Joe Finazzo, Resident / City of ReddingLtr: Request for access to property under CERCLA section 104(e)(3)(D), w/attch63858
8/4/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mark Wideman / Wilke, Fleury, Hoffelt, Gould & Birney (Attorneys)Ltr: Follows up on 2/14/97 ltr re confidential business info contained in Morrison Knudsen documents, w/encl & fax TL to M Wideman fr T Bloomfield58250
8/4/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: In response to 7/28/97 ltr, EPA has decided to construct clear-span Flat Creek bridge as removal action per orders 91-7 & 94-12, w/TL63863
8/5/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Richard Sugarek / Environmental Protection Agency - Region 9Memo: Summarizes 8/5/97 telephone discussion with M MaloyneyHuss re RAs58234
8/5/1997Environmental Protection Agency -Water quality standards, establishment of numeric criteria for priority toxic pollutants for CA, proposed rule, 40 CFR pt 131 (62 FR 42159)58262
8/6/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v81, w/ltr to T Bloomfield fr M MaloneyHuss58230
8/6/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Confirms discussion re replacement of reactor system baffles63859
8/6/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Requests approval to repair baffles in AMD reactors63860
8/8/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Requests response to high density sludge (HDS) plant vibration issues prior to operation commitment fr SMC, w/attch & TL58186
8/8/1997Thomas Bloomfield / Environmental Protection Agency - Region 9John Kenny / Moss & Enochian (Attorneys)Ltr: Confirms telephone conversation re request for access to J Finazzo property pursuant to section 104(e)(3)(D), w/related docs58269
8/8/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: High density sludge (HDS) treatment plant alterations & failure, w/o attchs63800
8/8/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Confirms telephone calls re further action at Slickrock Creek, including point source treatment, w/TL fr M MaloneyHuss63861
8/8/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Confirms telephone calls re further action at Slickrock Creek, including point source treatment63862
8/8/1997Thomas Bloomfield / Environmental Protection Agency - Region 9 -Memo: Transcript of voicemail message fr J Finazzo in response to request for site access63895
8/11/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Voice mail re private property owner requests compensation for unusable well & bank erosion protection63798
8/11/1997Keith Takata / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Response to SMC 8/8/97 ltr re liability for high density sludge (HDS) treatment plant & structural steel platform repairs63801
8/11/1997Keith Takata / Environmental Protection Agency - Region 9Brian Spiller / Stauffer Management CoLtr: Response to Stauffer 8/8/97 ltr re liability for high density sludge (HDS) treatment plant & steel platform repairs (concurrence copy)63802
8/12/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Itinerary & list of participants for site visit, w/maps & color photos of site58184
8/12/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoLtr: Confirms pending review of Stauffer high density sludge (HDS) test haul draft workplan63803
8/12/1997Joe Finazzo, Resident / City of ReddingRichard Sugarek / Environmental Protection Agency - Region 9ROC: Call discusses access to Finazzo property for Flat Creek Bridge replacement & proposed property improvements63822
8/12/1997John Kenny / Moss & Enochian (Attorneys)Thomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Confirms 8/11/97 telephone conversations granting permission to access J Finazzo property63896
8/13/1997T W Arman / Iron Mountain Mines, Inc -Notice of statements re Rhone-Poulenc memo of points & authorities in reply to US "CVP opposition" & in opposition to US "CVP Golinksy cross-motion"58185
8/13/1997Charles Alpers / US Geological SurveyRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Paleomagnetic analysis & radiometric dating of gossan samples, w/attch58242
8/13/1997Environmental Protection Agency - Region 9 -Photos: 39 4x6 in color, site tour for Felicia Marcus & Keith Takata58247
8/13/1997Dan Welsh / US Fish & Wildlife Service -Memo: Comments on CALFED water quality component rpt, w/TL to L Sullivan fr D Welsh 8/21/9763878
8/14/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v82, w/ltr to T Bloomfield fr M MaloneyHuss58231
8/14/1997Brian Spiller / Stauffer Management CoKeith Takata / Environmental Protection Agency - Region 9Ltr: Stauffer declines to repair structural steel platform & agrees to extend plant operation contingent on resolution of other issues, w/TL63806
8/15/1997Stauffer Management CoEnvironmental Protection Agency - Region 9Slickrock Creek metal point source demonstration - outline of proposed work, w/attchs, TL to T Bloomfield fr M MaloneyHuss58187
8/15/1997Stauffer Management CoEnvironmental Protection Agency - Region 9Slickrock Creek metal point source demonstration - outline of proposed work, w/o attchs, w/TL to T Bloomfield fr M MaloneyHuss & fax cover sheet58305
8/15/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Voice mail re Brick Flat Pit (BFP) liner repairs & high density sludge (HDS) test haul workplan revision & approval63807
8/15/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Outline for high density sludge (HDS) test haul & Brick Flat Pit (BFP) liner & filtrate riser pipes repairs63808
8/15/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Repair of reactor system baffles & administrative order (AO) compliance63809
8/15/1997Malcolm Watts / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: High density sludge (HDS) plant 14-day performance test rpt & HDS test haul, w/proposed emergency failure simulations & TL63810
8/15/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Discusses EPA approval of proposed 1997 storm repairs & completion timetable, w/TL63811
8/15/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Response to 8/4/97 ltr re Flat Creek Bridge replacement per orders #91-7 & #94-12, w/TL63812
8/15/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Response to 8/4/97 ltr re Flat Creek Bridge replacement per orders #91-7 & #94-1263897
8/15/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Concerns re implementing storm damage repairs63899
8/15/1997Malcolm Watts / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: High density sludge (HDS) plant 14-day performance test rpt & HDS test haul, w/proposed emergency failure simulations & TL63931
8/18/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoLtr: Approves aerated simple mix (ASM) sludge removal fr W end Brick Flat Pit (BFP) liner & transmits confirmation of test haul procedures, w/attchs58188
8/18/1997 - -Site historical records - ltrs, memos & data, 1988-2/20/96, w/CH2M Hill compendium58211
8/18/1997Stauffer Chemical Co -Site historical records - Stauffer mtg minutes & notices, 11/29/55-11/15/67, w/CH2M Hill compendium58212
8/18/1997 - -Site historical records - ltrs & memos, 7/27/64-8/10/88, w/CH2M Hill compendium58213
8/18/1997National Oceanic & Atmospheric Administration - National Marine Fisheries Service -Endangered & threatened species, notice of partial extension on final determination for ESUs of West Coast steelhead, 50 CFR pt 227 (62 FR 43974)58263
8/18/1997National Oceanic & Atmospheric Administration - National Marine Fisheries Service -Endangered & threatened species, listing of several evolutionary significant units (ESUs) of West Coast steelhead, 50 CFR pts 222 & 227 (62 FR 43937)58265
8/19/1997 - -Site historical records - excerpts, articles & rpts, 2/35-7/90, w/CH2M Hill compendium58214
8/19/1997Richard Sugarek / Environmental Protection Agency - Region 9FileMemo: SMC 8/15/97 letter re proposed 1997 storm repairs & circumstances & events63813
8/19/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses 1997 storm repairs site mtg schedule, Brick Flat Pit (BFP) liner sludge removal & high density sludge (HDS) test haul63814
8/19/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on Stauffer 8/15/97 ltr re proposed 1997 storm repairs & site mtg events63815
8/19/1997Lacrecia Taylor / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9TL: Site historical records63857
8/19/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Responds to 8/15/97 ltr re storm repairs, w/fax TL to M MaloneyHuss fr T Bloomfield63900
8/19/1997John Spitzley / C H 2 M Hill, Inc
Jim Mavis / C H 2 M Hill, Inc
Jim Stefanoff / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Minnesota Flats treatment plant modifications for treatment of Slickrock Creek retention reservoir acid mine drainage (AMD)63907
8/20/1997John Spitzley / C H 2 M Hill, IncFrank Peter / Stauffer Management CoMemo: Transmits baffle system reconstruction designs & review memo re redesign & original failure & notification of construction contract & schedule58189
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: High density sludge (HDS) treatment plant repairs & operation, w/list of comments & memo to R Sugarek fr J Spitzley re HDS system testing58190
8/20/1997Gerald Vogt / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Sara Monteith / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Exploration for thickener effluent tunnel to lower Spring Creek, w/attchs58274
8/20/1997Jim Stefanoff / C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Slickrock Creek retention reservoir summary of facilities & modifications58275
8/20/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mark Wideman / Wilke, Fleury, Hoffelt, Gould & Birney (Attorneys)Ltr: Status of confidential business information claim by Morrison Knudsen re 104(e) docs63877
8/20/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Notification of aerated simple mix (ASM) sludge removal from liner at W end of Brick Flat Pit (BFP) per requirements, w/TL63816
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Confirms site mtg & conference call for 1997 storm repairs & discusses Brick Flat Pit (BFP) liner repairs & Finazzo property improvements63817
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: EPA will strengthen structural steel platform63818
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Confirms site mtg & conference call for 1997 storm repairs & resubmittal of proposed repair designs per administrative orders (AO) #91-7 & #94-1263819
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Requests engineering information for 1997 storm repairs & field sampling plan (FSP) for Winter 1997-863820
8/20/1997John Spitzley / C H 2 M Hill, IncBrad Hubbard / US Army Corps of Engineers
Annie Manji / CA Regional Water Quality Control Board - Central Valley Region
Harry Rectenwald / CA Dept of Fish & Game
Memo: Replacement plans for Flat Creek Bridge, w/general plan of bridge & engineers estimate & bid schedule63821
8/20/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Percent calculations for high density sludge (HDS) effluent load during high wind exceedances, 3/11/9763823
8/20/1997John Spitzley / C H 2 M Hill, Inc
Ron Stillmunkes / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Design requirements for collection & conveyance of additional AMD flow fr Slickrock Creek retention reservoir to Minnesota Flats treatment plant63908
8/20/1997John Spitzley / C H 2 M Hill, Inc
Ken Iceman / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Proposed Slickrock Creek sediment basin & hematite pile retention structure(s)63909
8/20/1997Ken Iceman / C H 2 M Hill, Inc
John Spitzley / C H 2 M Hill, Inc
Cynthia Wetmore / Environmental Protection Agency - Region 9Memo: Slickrock Creek clean water diversions63910
8/21/1997Morrison Knudsen CorpStauffer Management CoDrawings: Drafts of washout gully on Slickrock diversion (2), final slope restoration & section & detail, w/TL to J Spitzley fr A Connell 8/22/9758157
8/21/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: EPA is reviewing docs pertaining to proposed workplan for Slickrock Creek63824
8/22/1997Charles Alpers / US Geological SurveyRichard Sugarek / Environmental Protection Agency - Region 9Ltr: News fr UC Davis re paleomagnetic sampling, w/attch58243
8/22/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Conference call re 1997 storm repairs per administrative orders (AO) #94-12 & #91-7, includes list of participants, w/memo fr F Peter63825
8/26/1997John Livingston / C H 2 M Hill, IncCynthia Wetmore / Environmental Protection Agency - Region 9Memo: Slickrock Creek retention reservoir & dam design for acid mine drainage (AMD) fr Slickrock Creek basin58276
8/29/1997Stauffer Chemical CoRhone-Poulenc Basic Chemicals CoSupplemental rpts as pt of Rhone-Poulenc response to water management FS, for public record, v83, w/ltr to T Bloomfield fr M MaloneyHuss58232
8/29/1997Mary MaloneyHuss / Stauffer Management CoThomas Bloomfield / Environmental Protection Agency - Region 9Ltr: Stauffer unable to provide answer re continued operation of high density sludge (HDS) treatment plant until following week, w/TL63826
9/1/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Addenda to field sampling plan (FSP), quality assurance project plan (QAPP) & site safety plan for sediment RI contingency plan58192
9/3/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Photos: 15 4x6 in color, site visit for Brick Flat Pit (BFP) W Slope liner failure repair, w/TL to R Sugarek fr J Spitzley 9/15/9758159
9/3/1997Richard Sugarek / Environmental Protection Agency - Region 9Thomas Hagler / Environmental Protection Agency - Region 9
Gail Louis / Environmental Protection Agency - Region 9
Memo: Comments on 8/97 draft component rpt, w/attchs58245
9/4/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Revised package for 1997 construction items, w/TL to R Sugarek fr L Erickson58171
9/4/1997 -Stauffer Management CoBrick Flat Pit (BFP) sludge sampling & analysis results for samples collected 7/7/97-7/8/97, w/TL to R Sugarek fr L Erickson58193
9/8/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on Morrison-Knudsen workplan for HDS (high density sludge) test haul, w/TL to L Erickson fr R Sugarek 9/9/9763827
9/9/1997Ralph Jennings / Record Searchlight (Newspaper) -Newsclip: Shasta Dam may be cool fish nursery63879
9/9/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses high density sludge (HDS) test haul plan, Finazzo property improvements & Brick Flat Pit (BFP) liner & riser pipes repairs63828
9/9/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses high density sludge (HDS) test haul plan & access to Finazzo property63829
9/9/1997Richard Sugarek / Environmental Protection Agency - Region 9James Pedri / CA Regional Water Quality Control Board - Central Valley RegionROC: Call discusses Sacramento River water quality exceedances for cadmium (Cd) standard63830
9/10/1997Richard Sugarek / Environmental Protection Agency - Region 9Frank Peter / Stauffer Management CoLtr: Requests drawings & other documents re structural steel platform for the aerated simple mix (ASM) treatment plant63831
9/11/1997CALFED Bay-Delta ProgramRichard Sugarek / Environmental Protection Agency - Region 9Supplemental notice of intent/preparation to prepare programmatic environmental impact statement/rpt63913
9/12/1997Materials Testing, IncStauffer Management CoSummary of field test & red sludge moisture & density test results, w/TL to R Sugarek fr Dan Wanket 9/19/9758200
9/12/1997Maureen Marche / CA Water Resources Control Board -Notice of public hearings - proposed policy for implementation of toxics standards for inland surface waters, enclosed bays & estuaries of CA63890
9/12/1997Ralph Jennings / Record Searchlight (Newspaper) -Article: Mine owner faces creek clean up bill (Redding Record Searchlight)63914
9/15/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Draft comments on Stauffer proposed 1997 storm repairs, w/TL to L Erickson fr J Spitzley58194
9/15/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Comments on Stauffer proposed 1997 storm repairs w/additional comments58195
9/15/1997Materials Testing, IncStauffer Management CoPreliminary summary of field test results & red sludge density & moisture test results, w/TLs58202
9/15/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9Memo: Review of Stauffer proposed 1997 storm repairs63915
9/15/1997John Spitzley / C H 2 M Hill, IncRichard Sugarek / Environmental Protection Agency - Region 9ROC: Voice mail re Finazzo property improvements & site walk63916
9/15/1997John Spitzley / C H 2 M Hill, IncWes Franks / Stauffer Management CoROC: Call discusses high density sludge (HDS) haul & Finazzo property improvements, w/TL to R Sugarek fr J Spitzley63918
9/15/1997Richard Sugarek / Environmental Protection Agency - Region 9 -ROC: Conference call discusses DFG proposed toxicty & plan, w/list of particpants63919
9/15/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Call discusses high density sludge (HDS) haul, pond samplng & 1997 storm repair review status63920
9/16/1997Morrison Knudsen Corp
Stauffer Management Co
-Effectiveness of vertical filtrate drains in Brick Flat Pit (BFP), draft, w/TL to R Sugarek fr L Erickson58196
9/16/1997James Hawley / Basic LaboratoryPaul Ekoniak / Zeneca IncBasic Lab rpt sheets for 7/97-8/97, w/TL to J Spitzley fr P Ekoniak 9/18/9758246
9/17/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoLtr: EPA approves selected 1997 storm repairs, w/comments on proposed repairs58197
9/18/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Voice mail re cost of Fiannzo property improvements63917
9/19/1997Joe Coglaiti / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Transmits analytical results of IM AMD neutralization treatment system for 8/97 w/encl (without disk)58270
9/19/1997Thomas Bloomfield / Environmental Protection Agency - Region 9Mary MaloneyHuss / Stauffer Management CoLtr: Follows up on 8/21/97 ltr re request to meet with EPA to review proposed workplan for Slickrock Creek63880
9/23/1997Materials Testing, IncStauffer Management CoUpdated table 2 summary of field test results 9/12/97-9/18/97, w/TLs63881
9/23/1997Richard Sugarek / Environmental Protection Agency - Region 9Rick Breitenbach / NONEROC: CALFED reoperation alternatives63882
9/23/1997Richard Sugarek / Environmental Protection Agency - Region 9Mark Stopher / CA Dept of Fish & GameROC: CA candidate listing of spring run63883
9/23/1997Richard Sugarek / Environmental Protection Agency - Region 9Bruce Thompson / San Francisco Estuary InstituteROC: Copper loading to San Francisco Bay & delta63884
9/23/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: 1997 storm repairs & J Finazzo property63901
9/24/1997Lee Erickson / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Brick Flat Pit filtrate riser pipe inspection & repair63902
9/24/1997Frank Peter / Stauffer Management CoRichard Sugarek / Environmental Protection Agency - Region 9ROC: Structural steel & record of decision (ROD4)63903
9/25/1997Environmental Protection Agency - Region 9 -Agenda for record of decision briefing re response to comments, w/ROD highlights of community participation & water quality management (WQM) results58249
9/25/1997Douglas King / Materials Testing, IncJoe Coglaiti / Stauffer Management CoMemo: Transmits red sludge data, w/o sample, index data sheet & curve 9, w/moisture & density test results, curves 10-12, gradation curve sheets & TLs58251
9/25/1997Robert Shaffer / US Dept of the Interior - Bureau of Reclamation
Frank Michny / US Dept of the Interior - Bureau of Reclamation
Richard Sugarek / Environmental Protection Agency - Region 9Ltr: Response to 7/14/97 memo re analysis of Spring Creek Debris Dam (SCDD) operational efficiency, w/encl & fax TL to R Sugarek fr E De Carlo58252
9/25/1997US Dept of the Interior - Bureau of ReclamationPaul Fujitani / US Dept of the Interior - Bureau of Reclamation
Val Ungvari / US Dept of the Interior - Bureau of Reclamation
Spring Creek water quality rpts (2/19/97 - 9/25/97), w/TLs to R Sugarek fr J Martin & D Wisniewski58100
9/25/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Handwritten notes: Comparison of copper discharge to Sacramento River, San Francisco Bay & delta63885
9/25/1997Richard Sugarek / Environmental Protection Agency - Region 9Bill Croyl / CA Regional Water Quality Control Board - Central Valley RegionROC: Copper discharge load to delta63886
9/25/1997Don Mandel / CA Environmental Protection Agency - Dept of Toxic Substances ControlRichard Sugarek / Environmental Protection Agency - Region 9Ltr: Additional responses to comments on 4/96 water management FS addendum for site, w/TL to R Sugarek fr D Mandel 9/26/9763889
9/25/1997John Spitzley / C H 2 M Hill, IncLee Erickson / Stauffer Management CoMemo: Clarifies discussions with B Claire re L Well request for stability analysis & inspection of excavation63904
9/25/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Brick Flat Pit riser inspection & repair & 1997 storm repair commitment63911
9/26/1997Stauffer Management CoEnvironmental Protection Agency - Region 9Workplan for Brick Flat Pit liner repair material requirements, w/attch & TL to R Sugarek fr L Erickson58271
9/27/1997Richard Sugarek / Environmental Protection Agency - Region 9Lee Erickson / Stauffer Management CoROC: Brick Flat Pit filtrate riser pipe repair63905
9/29/1997Richard Sugarek / Environmental Protection Agency - Region 9John Spitzley / C H 2 M Hill, IncROC: Progress of Keswick Reservoir benthic studies63887
9/29/1997Richard Sugarek / Environmental Protection Agency - Region 9 -Handwritten notes: Review of Stauffer (SMC) focus feasibility study (FFS) costs for baseflow treatment63888
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Water quality model output in support of response to comments58248
9/30/1997Environmental Protection Agency - Region 9 -Record of decision, w/EPA concurrences (ROD4) & TLs (7) fr CH2MHILL58279
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Response to comments on water management FS & addendum, v1 of 558282
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Response to comments on water management FS & addendum, v2 of 558283
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Response to comments on water management FS & addendum, v3 of 558284
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Response to comments on water management FS & addendum, v4 of 558285
9/30/1997C H 2 M Hill, IncEnvironmental Protection Agency - Region 9Response to comments on water management FS & addendum, v5 of 558286

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