anaconda copper mine yerington arizona arimetco operable ... · arimetco operable unit 8...

Anaconda Copper Mine

Superfund Site

Yerington, Nevada

Arimetco Operable Unit 8

Administrative Record Index

Released: 11/08/2016

SEMS-RM DOCID # 1162507

About the Administrative Record

This administrative record file contains the documents that the U.S. Environmental Protection

Agency (EPA) is currently using to identify appropriate remedial activities for the Anaconda

Copper Mine Superfund site, Arimetco Operable Unit 8 in Yerington, Nevada. It is presented in

digital video disc (DVD) format. The administrative record file will be supplemented

periodically; it will be complete after public comments on EPA's Proposed Plan, EPA's response

to comments, and the Record of Decision (ROD) are included.

EPA welcomes questions and comments on documents contained in the administrative record

file. Please contact:

Dante Rodriguez

Remedial Project Manager

U.S. EPA (SFD-8-2)

75 Hawthorne Street

San Francisco, CA 94105-3972

(415) 972-3166

[email protected]

or: Sarah Cafasso

Community Involvement Coordinator U.S. EPA (SFD-6-3)

75 Hawthorne Street

San Francisco, CA 94105-3972

(415) 972-3076 or (800) 231-3075

[email protected]

What is an Administrative Record?

An administrative record is a collection of documents that forms the basis for an agency's

decision, in this case the selection of a response action at a Superfund site. This does not mean

that only documents that support a response decision are placed in the administrative record.

Relevant documents that were relied upon in selecting the response action, as well as relevant

documents that were considered but ultimately rejected, are included. The administrative record

also acts as a vehicle for public participation in selecting a response action.

Under section 113(K) of the Comprehensive Environmental Response, Compensation, and

Liability Act (CERCLA), as amended by the Superfund Amendments and Reauthorization Act

(SARA), the U.S. Environmental Protection Agency (EPA) is required to establish an

administrative record for every Superfund response action and to make a copy of the

administrative record available at or near the site. The administrative record must be reasonably

available for public review during normal business hours. Questions regarding the maintenance

of the administrative record file should be directed to:

Elaine Chan, Administrative Record Coordinator, U.S. EPA (SFD-7-5), 75 Hawthorne Street,

San Francisco, CA 94105-3972, Phone: (415) 972-3128

How to obtain copies of administrative record documents:

Individuals may copy any documents contained in the administrative record file according to the

procedures at the local repository or request a copy of the DVD by calling the Regional Records

Center at (415) 947-8717.

mailto:[email protected]

mailto:[email protected]

Anaconda Copper Mine Superfund Site

Arimetco Operable Unit 8 Administrative Record

Acronyms and Abbreviations

ABBREVIATION MEANING

App Appendix

AOC Administrative Order on Consent

ARC Atlantic Richfield Co.

attch Attachment

BLM Bureau of Land Management

EPA Environmental Protection Agency

fr from

FS Feasibility Study

FSP Field Sampling Plan

Ltr Letter

Memo Memorandum

mgt management

NDEP NV Division of Environmental Protection

O&M operations & management

OU Operable Unit

p Page

Polrep Pollution Report

QAPP Quality Assurance Project Plan

RA Remedial Action

RD Remedial Design

RCRA Resource Conservation and Recovery Act

Re Regarding

RI Remedial Investigation

rpt Report

TL Transmittal Letter

UAO Unilateral Administrative Order

v(s) Volume(s)

w/ with

w/o without

This administrative record is available for viewing at the Regional Records Center, 75

Hawthorne Street, Suite 3110 in San Francisco and the Lyon County Library, 20 Nevin Way

Yerington, Nevada 89447.


Yerington, Nevada


Final Index, 11-04-2016in CHRONOLOGICAL order

Document ID Document Date Title Author Addressee

2234404 2/4/1993Static test, waste rock characterization W-3 final

rpt

R09: (Minerals Processing &

Environmental Laboratories, Inc)R09: Sifford, Bill (Arimetco, Inc)

2180494 8/3/1998Project completion rpt, VLT leach pad panel 12,

Arimetco Yerington Mine, permit NEV88039R09: (Arimetco, Inc)

R09: (NV Dept of Conservation &

Natural Resources - Div of

Environmental Protection)

2078870 12/14/2000Excerpt: Expanded site inspection (ESI) (pp 1-6) &

contact rpt re J Sawyer (12/7/00)

R09: Castellana, Benjamin (Ecology &

Environment, Inc)

R09: Barton, Dana (Environmental

Protection Agency - Region 9)

2061862 10/16/2001Ltr: Response to 104(e) request for information re

site & Arimetco Inc, w/marginalia

R09: Shipes, Roy (Western States

Engineering, Inc)

R09: Arthur, Bonnie (Environmental


2214000 8/23/2002Arimetco heap leach & process components

workplan, w/apps A-GR09: (Brown & Caldwell) R09: (Atlantic Richfield Co)

2168279 10/25/2002

EPA comments on "Draft Arimetco Heap Leach &

Process Components Workplan", w/TL to A

Gravenstein fr B Arthur

R09: (NV Dept of Conservation & Natural

Resources - Div of Environmental

Protection)

R09: (Environmental Protection

Agency - Region 9)

2168288 11/12/2002

Ltr: NDEP, EPA, BLM & US Fish & Wildlife

comments on "Draft Arimetco Heap Leach &

Process Components Workplan", 8/23/2002

R09: Gravenstein, Arthur (NV Dept of

Conservation & Natural Resources - Div

of Environmental Protection)

R09: Mccarthy, Dave (Atlantic Richfield

Co)

2168626 3/12/2003EPA review comments on "Final Draft Arimetco

Heap Leach & Process Components Workplan"

R09: (Environmental Protection Agency -

Region 9)




2168386 1/12/2004

Ltr: BLM comments on ARC's "Draft Final

Arimetco Heap Leach & Process Components

Workplan", 3/12/2003

R09: Briggs, Elayn (US Dept of the

Interior - Bureau of Land Management)




2245556 7/30/2004

Site characterization, draft QAPP & FSP,

w/marginalia & TL to J Sickles fr V Early 8/3/04,

w/o compact disc

R09: Early, Victor (Tetra Tech E M, Inc)

R09: (US Army Corps of Engineers),


Agency - Region 9)

2061879 8/9/2004Ltr: Mitigation of uranium threats at, & consent

for access to, Arimetco, Inc property, w/encl

R09: Helmlinger, Andrew (Environmental


R09: Boswell, Susan (Quarles & Brady,

Streich, Lang (Attorneys))

2141658 6/1/2005

Draft interim operations & maintenance plan for

pumpback well system & Arimetco heap leach

water management, w/apps A-D

R09: (Applied Hydrology International) R09: (Atlantic Richfield Co)

Page 1 of 29


Yerington, Nevada




2164470 10/10/2005

Ltr: Response to EPA's review comments on draft

interim operations & maintenance plan for

pumpback well system & Arimetco heap leach

water mgt at site, 6/1/2005

R09: Mccarthy, Dave (Atlantic Richfield

Co)

R09: Sickles, James (Environmental


2261949 10/17/2005

Evaluation of ARC's 10/10/05 response to EPA

comments on draft interim operation &

maintenance plan pumpback well system &

Arimetco heap leach water mgt of 6/1/05


Region 9)

2133414 12/7/2005

Action Memo: Request for a time-critical removal

action at site, w/map, w/o enforcement

confidential addendum


Protection Agency - Region 9), R09:

Dunkelman, Tom (Environmental


R09: Johnson, Kathleen (Environmental


2141660 12/30/2005

Interim operations, maintenance & monitoring

plan for pumpback well system & Arimetco heap

leach water management, w/attchs & TL to J

Sickles fr R Thun

R09: (Applied Hydrology International) R09: (Atlantic Richfield Co)

2158067 2/6/2006Ltr: Monthly rpt, 1/2006, UAO for initial response

activities, docket, #9-2005-0011R09: Thun, Roy (Atlantic Richfield Co)



2274722 4/20/2006 Daily quality control rpt, w/attchs & marginalia R09: Shoff, Tom (Tetra Tech E M, Inc)

2156217 7/17/2006Ltr: Monthly rpt, 6/2006, UAO for initial response

activities, docket #9-2005-0011R09: Thun, Roy (Atlantic Richfield Co)



2114018 8/1/2006Anaconda Mine pond improvements - technical

specificationsR09: (U R S Corp)


Agency - Region 9)

2114019 8/1/2006Anaconda Mine pond improvements -

construction QAPPR09: (U R S Corp)


Agency - Region 9)

2114020 8/1/2006Anaconda Mine pond improvements - final design

rptR09: (U R S Corp)


Agency - Region 9)

2133420 8/1/2006 Pond improvements, technical specifications R09: (U R S Corp)R09: (Environmental Protection

Agency - Region 9)

2133413 8/4/2006 Pond improvements, engineer's cost estimateR09: Castro, Cris (U R S Corp), R09:

Nelson, Steve (U R S Corp)


Agency - Region 9)

Page 2 of 29


Yerington, Nevada




2192254 8/4/2006

Ltr: Recent surface water sampling results &

necessary modification to draft interim O & M

plan pump back well system & Arimetco heap

leach water management, w/attchs 1 & 2


Protection Agency - Region 9)R09: Thun, Roy (Atlantic Richfield Co)

2133432 8/10/2006

Action Memo: Request for exemption fr

$2,000,000 statutory limit & request for time-

critical removal action w/o enforcement

addendum

R09: Dunkelman, Tom (Environmental


R09: Takata, Keith (Environmental


2235324 8/10/2006Email: Discusses & forwards radium data for

surface fluids sampling, w/attchs & marginalia



R09: Devries, Sonce (Environmental


2133417 9/6/2006

Oversize Drawings (28): Pond improvements as-

built, 11 x 17 in, scales vary w/TL to J Sickles fr C

Castro 12/21/2006

R09: (Team 9)R09: (Environmental Protection

Agency - Region 9)

2133421 12/1/2006Final rpt, field construction quality assurance

services for pond improvement programR09: Wallace, Robert (U R S Corp)



1109988 12/8/2006Ltr: Monthly inspection of Arimetco facilities,

11/29/2006 w/TL to J Sickles

R09: Sawyer, Joe (NV Dept of




Agency - Region 9)







Agency - Region 9)

2156189 12/28/2006Memo: Summary of Arimetco Facilities

maintenance & remediation priorities






of Environmental Protection), R09:

Najima, Jim (NV Dept of Conservation

& Natural Resources - Div of


2158064 1/3/2007Ltr: Monthly rpt, 12/2006, UAO for initial

response activities, docket #9-2005-0011R09: Thun, Roy (Atlantic Richfield Co)









Agency - Region 9)

Page 3 of 29


Yerington, Nevada

















Agency - Region 9)

2141361 5/1/2007 Draft QAPP for Arimetco heap leach pads RI R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

2141362 6/1/2007 Draft FSP for Arimetco heap leach pads RI R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

2133416 7/6/2007

Emergency response & time critical quality

assurance sampling plan for soil, water &

miscellaneous matrix sampling

R09: Schwennesen, Michael (NONE)R09: (Environmental Protection

Agency - Region 9)

2168787 7/6/2007Ltr: Yerington Paiute Tribe's comments on draft

FSP for Arimetco heap leach pads RI



R09: Conway, Vince (Yerington Paiute

Tribe)


5/23/2007, signed copy







6/22/2007 w/encl






2168792 7/13/2007Technical Memo: Responses to EPA comments on

QAPP for Arimetco heap leach pads, RIR09: Taylor, Victoria (C H 2 M Hill, Inc)

R09: Brickner, Jr, Carl (Environmental



7/24/2007






2235243 8/2/2007Email: Fluids management issues, degradation of

system





Montgomery, Michael (Environmental


Calanog, Steven (Environmental


Page 4 of 29


Yerington, Nevada




2168797 8/10/2007Memo: Response to comments on FSP for

Arimetco heap leach pads, remedial investigation

R09: Towell, David (C H 2 M Hill, Inc),

R09: Harris, Juliana (Navigant Consulting,

Inc)



Sickles, James (Environmental


Hollan Burke, Nadia (Environmental


2168799 8/10/2007Response to comments on FSP for Arimetco heap

leach pads, remedial investigation at site


Region 9)R09: (C H 2 M Hill, Inc)

2168798 8/20/2007

Email: EPA review of response to comments on

FSP for Arimetco heap leach pads, RI, w/history,

w/o attchs


Protection Agency - Region 9)R09: Towell, David (C H 2 M Hill, Inc)

2168791 8/21/2007Memo: Revised QAPP for Arimetco heap leach

pads, remedial investigation

R09: Mcnaughton, Eugenia

(Environmental Protection Agency -

Region 9)





2168795 8/29/2007Memo: Revised FSP for Arimetco heap leach pads,

RI







2178865 9/1/2007 Final QAPP for Arimetco Heap leach pads RI R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

2178866 9/1/2007 Final FSP for Arimetco Heap leach pads RI R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)


9/10/2007







9/10/2007, signed copy






Page 5 of 29


Yerington, Nevada




2213962 10/29/2007

Data package - Case 36759, SDG MY3JT3, 4 soil

samples, collected 9/25-9/27/07, analyzed for

metals & mercury, w/o computer disk

R09: (S V L Analytical Inc)R09: (Environmental Protection

Agency - Region 9)

2145232 11/2/2007 Polrep #2 (final), 10/17-11/2/2007, DO 022-9018R09: (Environmental Protection Agency -

Region 9)

2213961 11/5/2007



metals & mercury, reviewed by S Kott on 3/13/08,

w/o computer disk


Agency - Region 9)


10/16/2007






2213963 11/12/2007





Agency - Region 9)

2213964 11/21/2007

Data package - Case 36759, SDG MY3JS8, 20 soil



R09: (DataChem Laboratories, Inc)R09: (Environmental Protection

Agency - Region 9)

2213965 11/21/2007

Data package - Case 36759, SDG MY3LL8, 4 soil




Agency - Region 9)

2213966 11/21/2007

Data package - Case 36759, SDG MY3JQ8, 20 soil


metals & mercury, reviewed by H Chin on

3/20/08, w/o computer disk


Agency - Region 9)

2143824 11/29/2007Data package, SDG 0700021, solid samples for

Radium-228 analyses


National Air & Radiation Environmental

Laboratory)


Uranium analyses



Laboratory)

Page 6 of 29


Yerington, Nevada




2264038 12/18/2007

Analytical testing results - Project R07S90, SDG

07306C, 11 solid samples collected 10/23/07-

10/26/07, analyzed for solids, dry weight & TPH

extractable, w/TL to D Seter fr B Bettencourt


Region 9 Laboratory)


Agency - Region 9)

2143822 12/20/2007

Memo: Radiochemical results for site samples,

NAREL batch #s 0700021, 0700024, 0700029,

0700030, 0700031, 0700034, 0700039, 0700043,

& 0700046

R09: Griggs, John (Environmental

Protection Agency - National Air &

Radiation Environmental Laboratory)




gross alpha & beta analyses



Laboratory)

2143825 12/20/2007Data package, SDG 0700024, water samples for




Laboratory)





Laboratory)


Uranium analyses



Laboratory)

2143829 12/20/2007Data package, SDG 0700030, liquid samples for




Laboratory)


Radium-228 analyses



Laboratory)


Uranium analyses



Laboratory)


Thorium analyses



Laboratory)





Laboratory)

Page 7 of 29


Yerington, Nevada








Laboratory)





Laboratory)





Laboratory)





Laboratory)

2265574 12/20/2007

Memo: Radiochemical results for site samples,

NAREL batches 0700022, 0700023, 0700025, &

gamma results for 0700044 & 0700045, w/o

attchs




R09: Duncan, Will (Environmental


2148269 1/8/2008 Ltr: Monthly inspection of Arimetco facilities




R09: Hollan Burke, Nadia


Region 9)

2151211 1/18/2008Data package - SDG 0700031, 3 soil samples for

thorium, collected 9/26/2007-9/27/2007



Laboratory)


Agency - Region 9)


uranium, collected 9/25/2007-9/27/2007



Laboratory)


Agency - Region 9)





Laboratory)


Agency - Region 9)





Laboratory)


Agency - Region 9)





Laboratory)


Agency - Region 9)

Page 8 of 29


Yerington, Nevada








Laboratory)


Agency - Region 9)

2235244 1/18/2008Draft Anaconda ponds assessment rpt, w/attchs &

TL to T Dunkelman fr M SchwennesenR09: (Team 9)


Agency - Region 9)

2151219 1/30/2008TL: Data packages for isotopic uranium & thorium

analyses of samples collected fr site


Protection Agency - Office of Radiation &

Indoor Air)



2151201 2/1/2008 Email: Bird observation, slot 2 pond w/attchsR09: Williams, Les (Integral Consulting

Inc)

R09: Urquhart, Kris (NV Dept of

Wildlife)

2265575 2/6/2008Memo: Radiochemical results for site samples,

NAREL batch #s 0700025, 0700044, & 0700045




R09: Duncan, Will (Environmental


2151203 2/12/2008Email: Bird observation, EPA evaporation pond

w/attchs

R09: Williams, Les (Integral Consulting

Inc)


Wildlife)

2151204 2/13/2008Email: Bird observation, water quality sampling

results w/history & attchsR09: Towell, David (C H 2 M Hill, Inc)


Wildlife)

2151202 2/26/2008 Email: Bird observation, plant-feed pond w/attchsR09: Williams, Les (Integral Consulting

Inc)


Wildlife)

2234677 3/4/2008Email: Comments re Arimetco fluids management

system (FMS), w/history




R09: Thun, Roy (Atlantic Richfield Co),



Region 9)

2156235 3/19/2008

Ltr: Repair & maintenance of Arimetco fluids

management facilities, proposal to negotiate an

agreement between NDEP & ARC

R09: Najima, Jim (NV Dept of



R09: Thun, Roy (Atlantic Richfield Co)

2235323 4/4/2008Email: Addresses questions after safety audit at

site & ARC's March monthly rpt, w/history






Region 9), R09: Dunkelman, Tom


Region 9)

1109999 4/18/2008 Ltr: Site inspection rpt w/attchs






Region 9)

Page 9 of 29


Yerington, Nevada




2233896 5/1/2008 Historical summary rpt R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

2163309 5/28/2008 Anaconda ponds assessment rpt R09: (Team 9)R09: (Environmental Protection

Agency - Region 9)

1116447 7/1/2008Public review draft RI rpt, Arimetco facilities OU 8,

w/apps A-IR09: (C H 2 M Hill, Inc)


Agency - Region 9)

2163315 7/23/2008 Email: Upcoming removal action activitiesR09: Dunkelman, Tom (Environmental


R09: Kelso, Robert (NV Dept of



2235294 8/1/2008Suggested revisions & comments on revised

historical summary rpt dated 8/2008R09: (C H 2 M Hill, Inc)

2175199 8/8/2008

SDG 0700039, 5 soil samples for radium-226 in

environmental matrices, collected 10/9/2007 &

10/16/2007-10/17/2007



Radiation Environmental Laboratory),

R09: Wisdom, Mary (Environmental



2175200 8/8/2008

SDG 0700043, 13 soil samples for radium-226 in

environmental matrices, collected 10/23/2007-

10/26/2007 & 10/29/2007



Radiation Environmental Laboratory),

R09: Wisdom, Mary (Environmental



2175198 8/15/2008

Memo: Radiochemical results for radium-226

analysis of sample collected from site, batches

0700039 & 0700043, w/o attchs


Protection Agency - Office of Radiation &

Indoor Air)



1113387 9/20/2008Polrep #2 - Cleanup continues, 9/11-9/20/2008,

DO 022-9036



R09: Wong, Jeannie (Environmental


Takata, Keith (Environmental




Page 10 of 29


Yerington, Nevada




2179872 9/22/2008Drawings (4): Phase I/II pond improvement,

drawings C-1 to C-4


Superfund Technical Assessment &

Response Team)


DO 022-9036










DO 022-9036









1114511 10/20/2008Polrep #6 - Cleanup nearing completion, 10/13-

10/18/2008, DO 022-9036









2175196 10/21/2008

Ltr: Discusses & transmits comments on public

review draft RI rpt for Arimetco facilities OU 8,

7/2008, w/attch

R09: Thun, Roy (Atlantic Richfield Co)



Region 9)

1114648 10/30/2008Polrep #7 - Demob, 10/20-10/30/2008, DO 022-

9036









Page 11 of 29


Yerington, Nevada




2179874 12/3/2008

Ltr: Daily records of pumpback & lined

evaporation ponds wildlife observations, 11/24-

28/2008, w/encl


Inc)

R09: Williams, Robert (US Fish &

Wildlife Service)

2179868 12/26/2008Ltr: Inspection of Arimetco facilities on

11/20/2008






Region 9)

2179875 1/20/2009


evaporation ponds wildlife observations, 12/2008,

w/encl


Inc)


Wildlife Service)

2235316 2/2/2009Email: Notification of slot heap drain seep at site,

w/attchsR09: Schneider, Edmund (Norwest Corp)



2179876 2/23/2009



w/encl


Inc)


Wildlife Service)

2192258 3/6/2009



w/encl


Inc)


Wildlife Service)

2192259 3/13/2009



3/6/2009, w/encl


Inc)


Wildlife Service)

2192260 3/20/2009



3/13/2009, w/encl


Inc)


Wildlife Service)

2192261 3/27/2009



3/20/2009, w/encl


Inc)


Wildlife Service)

2192262 4/2/2009



3/27/2009, w/encl


Inc)


Wildlife Service)

2192263 4/13/2009Ltr: Daily records of wildlife observations, 3/30-

4/3/2009, w/encl


Inc)


Wildlife Service)

2235314 4/14/2009Email: EPA direction re operations & maintenance

(O&M) at site, & wildlife deterrent measures

R09: Seter, David (Environmental


Page 12 of 29


Yerington, Nevada





4/10/2009, w/encl


Inc)


Wildlife Service)

2235313 4/21/2009Email: Arimetco bird deterrent program

clarifications, w/incomplete historyR09: Batchelder, John (EnviroSolve Corp)




4/17/2009, w/encl


Inc)


Wildlife Service)


4/24/2009, w/encl


Inc)


Wildlife Service)


5/1/2009, w/encl


Inc)


Wildlife Service)

2263831 5/11/2009


09117A, 14 water samples collected 4/15/09,

4/16/09, & 4/22/09, analyzed for total organic

carbon, w/TL to D Seter fr B Bettencourt




Agency - Region 9)

2263834 5/11/2009


09114G, 13 water samples collected 4/15/09 &

4/21/09, analyzed for total organic carbon, w/TL

to D Seter fr B Bettencourt




Agency - Region 9)


5/8/2009, w/encl


Inc)


Wildlife Service)


5/15/2009, w/encl


Inc)


Wildlife Service)


5/22/2009, w/encl


Inc)


Wildlife Service)

2213973 6/9/2009

Draft operations & maintenance plan, pumpback

well system, Arimetco heap leach fluid

management system, w/TL to N Hollan Burke fr R

Thun, w/o compact discs (apps C & H)

R09: (Brown & Caldwell) R09: (Atlantic Richfield Co)


5/29/2009, w/encl


Inc)


Wildlife Service)

2264036 6/16/2009 QAPP for Arimetco portion RI/FS, & data mgt plan R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

Page 13 of 29


Yerington, Nevada




2264037 6/16/2009Field sampling plan (FSP) for Arimetco portion

RI/FSR09: (C H 2 M Hill, Inc)


Agency - Region 9)

2234675 6/18/2009Email: Response re outstanding Arimetco fluid

management system (FMS) issues, w/historyR09: Batchelder, John (EnviroSolve Corp)

R09: Thun, Roy (Atlantic Richfield Co),



2263833 7/1/2009


09114G, 28 water samples collected 4/15/09 &

4/21/09, analyzed for mercury by CVAA, metals

by ICP & metals by ICP/MS, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)

2263832 7/6/2009


09117A, 30 water samples collected 4/15/09,

4/16/09, & 4/22/09, analyzed for mercury by

CVAA, metals by ICP & metals by ICP/MS, w/TL to

D Seter fr B Bettencourt




Agency - Region 9)

2205764 7/10/2009Ltr: Daily records of wildlife observations, 6/2009,

w/encl


Inc)


Wildlife Service)


w/encl


Inc)


Wildlife Service)

2205784 8/14/2009Ltr: Presents technology that can clean

contaminated tailing ponds at site, w/encls

R09: Spears, Dean (Pinsonneault

Holdings, L L C - Environmental Div)



Region 9)

2205782 8/19/2009

Ltr: EPA comments & transmittal of stakeholder

comments re draft O & M plan, pumpback well

system, Arimetco heap leach fluid management

system, w/encls



2205783 8/19/2009

Ltr: Preliminary estimate for cleanup of

evaporation pond's dry contaminated sediment

removal

R09: Spears, Dean (Pinsonneault

Holdings, L L C - Environmental Div)



Region 9)

2263828 8/25/2009


09212B, 2 soil samples collected 7/25/09 &

7/26/09, analyzed for percent solids, &

extractable petroleum hydrocarbons by GC/FID,

w/TL to D Seter fr B Bettencourt




Agency - Region 9)

Page 14 of 29


Yerington, Nevada




2263829 8/25/2009


09212B, 2 soil samples collected 7/25/09 &

7/26/09, analyzed for percent solids, anions by

ion chromatography & pH, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)

2263826 9/4/2009


09224C, 10 soil samples collected 8/7/09, 8/9/09,

8/12/09 & 8/14/09 analyzed for anions by ion

chromatography, percent solids, & pH, w/TL to D

Seter fr B Bettencourt




Agency - Region 9)

2263827 9/8/2009


09224C, 10 soil samples collected 8/7/09, 8/9/09,

8/12/09 & 8/14/09 analyzed for percent solids, &

extractable petroleum hydrocarbons by GC/FID,





Agency - Region 9)


9/4/2009, w/encl


Inc)


Wildlife Service)


w/encl


Inc)


Wildlife Service)


9/11/2009, w/encl


Inc)


Wildlife Service)

2263824 9/29/2009


09247A, 7 water samples collected 9/2/09 &

9/3/09, analyzed for anions by ion

chromatography & sulfide by titration, w/TL to D





Agency - Region 9)

2263825 10/1/2009


09247B, 18 soil samples collected 8/31/09, 9/1/09

& 9/2/09, analyzed for anions by ion






Agency - Region 9)


9/18/2009, w/encl


Inc)


Wildlife Service)


9/25/2009, w/encl


Inc)


Wildlife Service)

Page 15 of 29


Yerington, Nevada





10/2/2009, w/encl


Inc)


Wildlife Service)

2235325 10/15/2009Email: Transmits & comments on 2 articles re x-

ray fluorescence analyzers, w/attch & marginalia

R09: Olsen, Tom (US Dept of the Interior -

Bureau of Land Management)



Region 9)

2263819 10/16/2009


09247B, 18 soil samples collected 8/31/09, 9/1/09

& 9/2/09, analyzed for extractable petroleum

hydrocarbons by GC/FID & percent solids, w/TL to





Agency - Region 9)

2263820 10/16/2009


09247A, 7 water samples collected 9/2/09 &

9/3/09, analyzed for extractable petroleum

hydrocarbons by GC/FID, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)

2263821 10/16/2009


09253B, 5 water samples collected 9/9/09,

analyzed for anions by ion chromatography, w/TL





Agency - Region 9)

2263822 10/16/2009


09247C, 26 soil samples collected 8/31/09, 9/1/09

& 9/2/09, analyzed for anions by ion






Agency - Region 9)

2263823 10/16/2009


09247C, 26 soil samples collected 8/31/09, 9/1/09

& 9/2/09, analyzed for extractable petroleum

hydrocarbons by GC/FID & percent solids, w/TL to





Agency - Region 9)


10/9/2009, w/encl


Inc)


Wildlife Service)


10/16/2009, w/encl


Inc)


Wildlife Service)

Page 16 of 29


Yerington, Nevada





10/23/2009, w/encl


Inc)


Wildlife Service)


10/30/2009, w/encl


Inc)


Wildlife Service)


11/6/2009, w/encl


Inc)


Wildlife Service)


11/13/2009, w/encl


Inc)


Wildlife Service)


11/20/2009, w/encl


Inc)


Wildlife Service)


11/27/2009, w/encl


Inc)


Wildlife Service)

2263830 1/6/2010


09338B, 6 water & 4 waste, aqueous samples

collected 12/1/09 & 12/2/09, analyzed for anions

by ion chromatography & sulfide by titration,





Agency - Region 9)

2212104 1/18/2010Ltr: Daily records of wildlife observations,

12/2009, w/encl


Inc)


Wildlife Service)


w/encl


Inc)


Wildlife Service)

2212752 3/9/2010 Ltr: Discusses species list for siteR09: Williams, Robert (US Fish & Wildlife

Service)



Region 9)

1121747 3/18/2010Ltr: Monthly rpt of daily bird monitoring

observations, 2/2010, w/enclR09: Meyer, Carolyn (ARCADIS U S, Inc)


Wildlife Service)

2263818 3/23/2010


10067C, 6 water samples collected 3/3/10,

analyzed for extractable petroleum hydrocarbons

by GC/FID, w/TL to D Seter fr B Bettencourt




Agency - Region 9)

1121748 3/30/2010Ltr: Weekly rpt of daily bird observations, 3/1-

3/5/2010, w/enclR09: Meyer, Carolyn (ARCADIS U S, Inc)


Wildlife Service)




Wildlife Service)

Page 17 of 29


Yerington, Nevada




2263816 4/14/2010


10067D, 10 waste, aqueous samples collected

3/2/10, analyzed for anions by ion

chromatography, metals by ICP & ICP/MS,

mercury by CVAA, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)

2263817 4/14/2010


10067C, 12 water samples collected 3/3/10,

analyzed for anions by ion chromatography,

metals by ICP & ICP/MS, mercury by CVAA &

sulfide by titration, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)




Wildlife Service)




Wildlife Service)




Wildlife Service)




Wildlife Service)




Wildlife Service)

2235779 6/16/2010

Comments on draft operations & maintenance

plan, pumpback well system, Arimetco heap leach

pad fluid management system submitted

6/9/2009, w/TL to J Oman fr T Dunkelman


Region 9)R09: (Atlantic Richfield Co)

2265005 6/22/2010

Email: Review of baseline human health risk

assessment (HHRA) for inhalation pathway

5/17/10

R09: Evans, Mark (US Dept of Health &

Human Services - Agency for Toxic

Substances & Disease Registry)

R09: Hollan, Nadia (Environmental


2261929 6/28/2010


10161B, 6/10 Arimetco OU sampling, 7 water

samples for extractable petroleum hydrocarbons

by GC/FID, collected 6/8/10-6/9/10, w/TL to D





Agency - Region 9)

Page 18 of 29


Yerington, Nevada




2261927 6/30/2010



samples for anions by ion chromatography &

sulfide by titration, collected 6/8/10-6/9/10, w/TL





Agency - Region 9)

2261928 6/30/2010


10161C, 6/10 Arimetco OU sampling, 5 matrix

"other" samples for anions by ion

chromatography, collected 6/8/10, w/TL to D





Agency - Region 9)

2261930 7/2/2010


10161C, 6/10 Arimetco OU sampling, 10 matrix

"other" samples for mercury by CVAA, metals by

ICP/MS, & metals by ICP, collected 6/8/10, w/TL





Agency - Region 9)

2261931 7/19/2010



samples for mercury by CVAA, metals by ICP/MS,

& metals by ICP, [CALC], collected 6/8/10-6/9/10,





Agency - Region 9)

2261933 9/3/2010

Analytical testing results - Project R10SA7, SDG

10225E, 8/10 Arimetco OU sampling, 12 water

samples for anions by ion chromatography &

sulfide by titration, collected 8/10/10-8/11/10,





Agency - Region 9)

2261934 9/3/2010



samples for extractable petroleum hydrocarbons

by GC/FID, collected 8/11/10, w/TL to D Seter fr B

Bettencourt




Agency - Region 9)

Page 19 of 29


Yerington, Nevada




2261932 9/13/2010



samples for mercury by CVAA, metals by ICP/MS,

& metals by ICP, [CALC], collected 8/10/10-

8/11/10, w/TL to D Seter fr B Bettencourt




Agency - Region 9)

2235330 10/25/2010 Polrep 4 (9/29/08-10/4/08)R09: Dunkelman, Tom (Environmental



Agency - Region 9)

2261935 11/29/2010

Comments on draft supplemental RI rpt, Arimetco

facilities OU-8, 10/2010, w/attch & TLs to D Seter

fr J Whitesides (fax copy of 11/30/10)

R09: (Yerington Paiute Tribe)R09: (Environmental Protection

Agency - Region 9)

2265004 12/15/2010Email: Comments on OU-8 RI human health risk

assessment (HHRA), w/attchs & marginalia

R09: Serda, Sophia (Environmental




2260714 1/17/2011

Ltr: Discusses & transmits comments on draft

supplemental RI rpt for Arimetco Facilities (OU-8)

of 10/2010, w/attchs

R09: Oman, Jack (Atlantic Richfield Co)R09: Seter, David (Environmental


2261936 2/17/2011Ltr: Response to ARC correspondence, Arimetco

OU-8 supplemental RI of 10/2010


Protection Agency - Region 9)R09: Oman, Jack (Atlantic Richfield Co)

1162022 6/2/2011

2010 annual operations & maintenance rpt -

Arimetco heap leach fluid management system,

w/apps A-F


2356246 8/1/2011Fact Sheet: Arimetco FS released for public

comment


Region 9)

2356309 8/3/2011 Technical directive workplan re OU8 at siteR09: (Technical Assistance Services for

Communities)

2245530 8/26/2011

Public Notice: Public comment open until 9/30/11

on FS of potential cleanup options for Arimetco

portion (OU8) of site, community mtg on 9/15/11


Region 9)R09: (Nevada Appeal (Newspaper))

2249788 8/26/2011Public Notice: Comment period & community

update mtg


Region 9)R09: (Mason Valley News)

2260385 9/1/2011Final RI rpt, Arimetco facilities OU-8, w/apps A-I,

w/o compact discR09: (C H 2 M Hill, Inc)


Agency - Region 9)

Page 20 of 29


Yerington, Nevada




2267079 9/12/2011

Ltr: Discusses costs & liability, & transmits

technical memo describing Arimetco fluid

management system (FMS) water balance & short-

term mitigation alternatives, w/TL fr T Patton

R09: Ferries, Marcus (Atlantic Richfield

Co)

R09: Diamond, Jane (Environmental


Emme, David (NV Dept of Conservation



2260428 9/26/2011 Ltr: Comments on Arimetco OU-8 draft FSR09: Pauly, Peggy (Yerington Community

Action Group)



2260386 10/1/2011Final supplemental RI rpt, Arimetco facilities OU-

8, w/apps D, E, & H, w/o compact discR09: (C H 2 M Hill, Inc)


Agency - Region 9)

2248461 10/7/2011

Newsclip: Public comment period extension to

10/31/11 for FS of potential cleanup options for

Arimetco portion (OU8) of site, w/proof of

publication

R09: (Nevada Appeal (Newspaper))

2260429 10/25/2011

Ltr: Discusses & transmits comments on FS for

Arimetco facilities OU-8 heap leach pads & drain

down fluids, w/attch

R09: Howard, Linda (Yerington Paiute

Tribe)



2260424 10/28/2011

Ltr: Discusses & transmits comments on draft FS

for Arimetco facilities OU-8 heap leach pads &

drain down fluids, w/attchs

R09: Dischler, Steve (Singatse Peak

Services, L L C)



2260425 10/31/2011

Ltr: Discusses & transmits responses to comments

on draft FS for Arimetco facilities OU-8 heap leach

pads & drain down fluids, w/attch



2260427 10/31/2011

Ltr: Discusses & transmits comments on public

review draft FS for Arimetco facilities OU-8, heap

leach pads & drain down fluids, w/attch

R09: Lovato, Greg (NV Dept of





2274529 2/2/2012Ltr: Accepts proposal re Arimetco Fluids Mgt

System (FMS), with terms & expectations listed

R09: Diamond, Jane (Environmental


Emme, David (NV Dept of Conservation



R09: Ferries, Marcus (Atlantic Richfield

Co), R09: Dischler, Steve (Singatse Peak

Services, L L C)

Page 21 of 29


Yerington, Nevada




2260416 3/26/2012Response to public comments fr J Dunlap - FS for

Arimetco facilities OU-8, public review draft


Region 9)

R09: Dunlap, Resident, Jim (City of

Yerington, NV)

2260417 3/30/2012Response to public comments fr J Sanford - FS for



Region 9)

R09: Sanford, James (Mason Valley

Environmental Committee)

2260423 3/30/2012Response to public comments fr M Willow - FS for



Region 9)

R09: Willow, Mark (Singatse Peak

Services, L L C)

2260420 4/5/2012Response to public comments fr G Lovato - FS for



Region 9)




2260418 4/6/2012Response to public comments fr J Hadder - FS for



Region 9)

R09: Hadder, John (Great Basin

Resource Watch)

2260419 4/6/2012Response to public comments fr P Pauly - FS for



Region 9)

R09: Pauly, Peggy (Yerington

Community Action Group)

2260421 4/6/2012Response to public comments fr L Howard - FS for



Region 9)


Tribe)

2260422 4/6/2012Response to public comments fr J Oman - FS for



Region 9)R09: Oman, Jack (Atlantic Richfield Co)

2260384 5/1/2012

Draft final FS for Arimetco Facilities OU-8, heap

leach pads & drain-down fluids, w/attch, apps A-D

& exhibit 1, w/o compact disc

R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

2257237 6/8/2012

Action Memo: Request for time-critical removal

action at site, w/apps 1-2 & signed transmittal

form & w/o enforcement confidential addendum,

p18 (08 Removal/Approval of Action Memo 7/9)



R09: Meer, Daniel (Environmental


2340296 6/25/2012

2011 annual operations & maintenance rpt,


w/TL, w/o apps A-G & compact disc

R09: (Brown and Caldwell) R09: (Atlantic Richfield Co)

Page 22 of 29


Yerington, Nevada




2281991 10/1/2012Ltr: Workplan to complete fluid mgt system study

under settlement agreement & AOC, w/attchs

R09: Harbert, Trey (Singatse Peak

Services, L L C)



2281992 10/31/2012

Ltr: Transmits review of workplan to complete

fluid mgt system study under settlement

agreement & AOC (attch A), & comments on

11/2011 AR/BC FMS water balance calculations

(attch B)






1162055 11/1/2012

Draft baseline human health risk assessment -

Anaconda Arimetco OU heap leach pads & drain-

down fluids, w/apps A-C

R09: (C H 2 M Hill, Inc)R09: (Environmental Protection

Agency - Region 9)

1162056 11/1/2012

Yerington Paiute Tribe comments re draft baseline

human health risk assessment - Anaconda

Arimetco OU heap leach pads & drain-down

fluids, w/attch

R09: (Yerington Paiute Tribe)

2281993 11/26/2012

Ltr: Comments on workplan to complete fluid mgt

system study under settlement agreement & AOC,

& transmits combined stakeholder comments,

w/attch




Services, L L C)

2274530 12/11/2012

Ltr: Details alternatives & specific plans for rev

fluid mgt system (FMS) workplan based on

comments fr EPA dated 11/26/12


Services, L L C)



1162057 12/20/2012

Ltr: Transmits Atlantic Richfield comments re draft

baseline human health risk assessment -

Anaconda Arimetco OU heap leach pads & drain-

down fluids, w/attch



2274532 1/16/2013

Ltr: Discussion of Bevill Exemption for fluid mgt

system (FMS) for Arimetco heap leach pads fluids

& solids


Services, L L C)




2274533 1/18/2013Ltr: Agrees that fluid mgt system (FMS) solids &

liquids are Bevill exempt & not hazardous waste





Services, L L C)

2340298 2/14/2013

Ltr: Transmits compact disc containing summary

of activities conducted by EPA in fall of 2012 re

VLT pond removal action, & supporting docs,

w/attchs


Protection Agency - Region 9)R09: Oman, Jack (Atlantic Richfield Co)

Page 23 of 29


Yerington, Nevada




2342874 7/15/2013Ltr: Expresses concern re fluid management

system study for Anaconda Mine dated 4/2013

R09: Stevens, Resident, Delmar (City of

Yerington, NV)

R09: Manzanilla, Enrique


Region 9)

2342873 8/19/2013

Action Memo: Requests & documents approval

for response action to incur direct extramural

costs of up to $642,821



R09: Montgomery, Michael


Region 8)

2342875 8/21/2013Ltr: Provides update on status of fluid managment

system at Anaconda Yerington Mine site

R09: Manzanilla, Enrique (Environmental



Tribe)

1162058 9/3/2013

EPA response to Atlantic Richfield comments re

Nov 2012 draft baseline human health risk

assessment - Anaconda Arimetco OU heap leach

pads & drain-down fluids (redline draft)


Region 9)

1162059 9/3/2013

EPA response to Yerington Paiute Tribe comments

re Nov 2012 draft baseline human health risk

assessment - Anaconda Arimetco OU heap leach

pads & drain-down fluids (redline draft)


Region 9)

1162049 3/25/2014Technical Memo: Arimetco heap leach pad water

balance analysis, w/attchs 1-3

R09: Zimmerman, Chuck (Brown &

Caldwell)

R09: Johnson, Brian (Atlantic Richfield

Co), R09: Oman, Jack (Atlantic Richfield

Co)

2301840 3/25/2014

Technical Memo: Arimetco heap leach pad water

balance analysis, w/attchs 1-3 & TL to D Seter fr J

Oman


Caldwell)

R09: Johnson, Brian (Atlantic Richfield

Co), R09: Oman, Jack (Atlantic Richfield

Co)

1162045 6/4/2014

Email: Transmits May 2014 monthly rpt &

monthly Arimetco fluid management system

monitoring data, w/attchs & forward to H Ball & D

Rodriguez fr D Seter 6/13/14


Caldwell)



2304140 6/9/2014

2013 annual operations & maintenance rpt,


w/TL to D Seter fr J Oman


1162046 7/2/2014

Email: Transmits Jun 2014 monthly rpt & monthly

Arimetco fluid management system monitoring

data, w/attchs


Caldwell)



Page 24 of 29


Yerington, Nevada




1162006 8/1/2014 OU8 conceptual closure plan, w/o app A R09: (S R K Consulting (U S), Inc)




1162047 8/7/2014

Email: Transmits Jul 2014 monthly rpt & monthly


data, w/attchs


Caldwell)



1162048 9/4/2014

Email: Transmits Aug 2014 monthly rpt & monthly


data, w/attchs


Caldwell)



1162007 9/23/2014Ltr: Comments on OU8 conceptual closure plan &

cost estimate

R09: Massey, Taurus (Singatse Peak

Services, L L C)

R09: Gardner, Jeryl (NV Dept of



1162050 9/25/2014Cement copper evaluation w/email TLs, w/o

attchs A-BR09: (Singatse Peak Services, L L C)

1162051 9/29/2014

Email: Forwards transmitted final rpt re CERCLA

docket #9, Singatse Peak Services LLC dated

9/29/14, w/attch & history



R09: Rodriguez, Dante (Environmental


1162167 9/29/2014

(Privileged) Email: Discusses hazardous waste &

Bevill exemption re conceptual closure plan for

OU8 & RCRA requirements, w/attch (privileged

document target only)



R09: Helmlinger, Andrew


Region 9)

1162148 9/30/2014Ltr: Transmits comments re OU8 conceptual

closure plan, focused FS, w/attch






2343053 10/7/2014Ltr: Transmits Sep 2013 monthly rpt for RI/FS &

O&M actitivies at Site, w/attchR09: Oman, Jack (Atlantic Richfield Co)

R09: Johnson, Jere (Environmental


1162009 10/9/2014Ltr: Additional comments re cost estimates in

conceptual closure plan, OU8, w/email TL






1162010 10/22/2014

Email: Provides description re framing of site-wide

issues fr discussion re OU8 conceptual closure

plan & cost estimate, w/attch & history






1162041 11/7/2014

Email: Transmits Oct 2014 monthly rpt & monthly


data re OU8 focused FS, w/attchs


Caldwell)



Page 25 of 29


Yerington, Nevada




1162042 12/5/2014

Email: Transmits Nov 2014 monthly rpt & monthly


data, w/attchs


Caldwell)



1162012 12/15/2014

Email: Transmits 12/14/14 ltr to J Gardner fr L

Howard re OU8 focused FS, conceptual closure

plan, w/attch & history

R09: Hatch, Ginny (Yerington Paiute

Tribe)



1162043 1/5/2015

Email: Transmits Dec 2014 monthly rpt & monthly


data, w/attchs


Caldwell)



1162013 1/14/2015

Email: Transmits revised draft technical memo 2,

w/comments & edits in track changes mode

(design basis memo for OU8 interim stormwater

management), w/attch & history





Gardner, Jeryl (NV Dept of



1162023 2/5/2015

Email: Transmits Jan 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162014 2/12/2015Ltr: Joint agency comments on draft OU8 focused

FS conceptual closure plan





Tribe)

1162015 2/23/2015Ltr: Responds to comments re OU8 focused FS

conceptual closure plan



Gardner, Jeryl (NV Dept of Conservation




Services, L L C)

1162005 3/1/2015OU8 focused FS conceptual closure plan, w/apps

A-CR09: (S R K Consulting (U S), Inc)

R09: Burnley, Brease (NV Div of


1162033 3/3/2015

Email: Transmits Feb 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162021 3/31/2015



w/o apps A-G


Page 26 of 29


Yerington, Nevada




1162034 4/8/2015

Email: Transmits Mar 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162035 5/6/2015

Email: Transmits Apr 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162016 6/10/2015

Ltr: Notifies of completion of focused FS

conceptual closure plan, OU8 & outlines items to

be addressed prior to remedy selection & RD

phase






1162036 6/10/2015



monitoring data, w/attchs


Caldwell)



1162044 6/30/2015

Email: Discusses enhanced evaporation &

transmits fluid management system study dated

Apr 2013 & related comments, w/attchs



R09: Herrera, Angeles (Environmental


1162037 7/10/2015



data, w/attchs


Caldwell)



1162038 8/7/2015

Email: Transmits Jul 2015 monthly rpt & monthly


data re OU8, w/attchs


Caldwell)



1162039 9/2/2015

Email: Transmits Aug 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162040 10/7/2015

Email: Transmits Sep 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162024 11/6/2015

Email: Transmits Oct 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162025 12/4/2015

Email: Transmits Nov 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



Page 27 of 29


Yerington, Nevada




1162026 1/7/2016

Email: Transmits Dec 2015 monthly rpt & monthly


data, w/attchs


Caldwell)



1162052 1/16/2016

Email: Arimetco FMS water balance model update

summary w/attch & forward to D Rodriguez & J

Gardner, 1/11/16


Caldwell)R09: Oman, Jack (Atlantic Richfield Co)

1162027 2/9/2016

Email: Transmits Jan 2016 monthly rpt & monthly


data, w/attchs


Caldwell)



1162028 3/4/2016

Email: Transmits Feb 2016 monthly rpt & monthly




Caldwell)



1162053 3/8/2016Ltr: Comments on draft Singatse Peak Services

enhanced evaporation pilot study workplan





Services, L L C)

1162029 4/5/2016

Email: Transmits Mar 2016 monthly rpt & monthly




Caldwell)



1162054 4/11/2016Ltr: Concurs with final Singatse Peak Services

enhanced evaporation pilot study workplan





Services, L L C)

1162030 5/10/2016

Email: Transmits Apr 2016 monthly rpt & monthly




Caldwell)



1162019 5/16/2016



OU8, w/o apps A-H


1162031 6/6/2016



monitoring data re OU8, w/attchs


Caldwell)



1162032 7/6/2016





Caldwell)



1162146 10/1/2016OU8 final FS for Arimetco facilities - heap leach

pads & drain-down fluids, w/apps A-FR09: (C B & I Federal Services, L L C)


Agency - Region 9)

Page 28 of 29


Yerington, Nevada




1162147 10/1/2016OU8 final baseline human health risk assessment -

heap leach pads & drain-down fluids, w/apps A-CR09: (C B & I Federal Services, L L C)


Agency - Region 9)

2133415 UndatedFluids management system standard operating

procedures


Region 9)R09: (Atlantic Richfield Co)

Page 29 of 29

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