Digital Commons @ Montana Tech

Roby, Molly

Montana Tech Library 
Digital Commons @ Montana Tech 
Silver Bow Creek/Butte Area Superfund Site Montana Superfund 
Summer 7-25-2025 
Re: Comment letter for the Butte Priority Soils Operable Unit 
(BPSOU) Draft Final 2022 Unreclaimed Sites Sampling: UR-12 Site 
Evaluation Summary Report (dated April 8, 2025) 
Molly Roby 
Follow this and additional works at: https://digitalcommons.mtech.edu/superfund_silverbowbutte 
 Part of the Environmental Health and Protection Commons, Environmental Indicators and Impact 
Assessment Commons, and the Environmental Monitoring Commons 
 
 
July 25, 2025 
 
Mr. Mike McAnulty 
Liability Manager 
Atlantic Richfield Company 
317 Anaconda Road 
Butte, Montana 59701 
 
Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final 2022 
Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report (dated April 8, 2025)  
 
Dear Mr. McAnulty: 
 
The U. S. Environmental Protection Agency (EPA), in consultation with the Montana Department of 
Environmental Quality (DEQ), is providing comments on the Butte Priority Soils Operable Unit (BPSOU) 
Draft Final 2022 Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report (SESR) (dated 
April 8, 2025). Please address the comments below and resubmit the document for agency review. 
General Comments 
1. Please explain in the SESR report how the site boundary was delineated as two sites currently 
exist in the footprint of the project area, namely Unreclaimed Site (UR) UR-12 and Butte 
Reclamation Evaluation System (BRES) site BRES 148 as shown on the unapproved draft 2022 
Boundary Adjustments Report. In review of the sample results from this UR-12 sampling effort, 
the sampling provides an indication that additional delineation is warranted to encompass those 
areas mapped with BRES 148 in addition to UR-12. The Agencies would like to discuss the project 
boundary extent and potential need for additional lab and XRF delineation before a RAWP is 
submitted for review. 
2. Please check/update the list of acronyms throughout the SESR and accompanying documents, to 
the extent discussed during the call on July 24, 2025 where other comments on UR sites SESRs 
were discussed. 
Specific Comments 
1. Site Evaluation Summary Report (SESR), Section 1.0, Introduction: In the third paragraph, please 
remove “Revision 1” from “2022 Final UR Sites Quality Assurance Project Plan (QAPP)”. The title 
of the document does not include “Revision 1”. In addition, please update the citation(s) and 
References section to reflect that the Final 2022 UR Site QAPP was approved by the Agencies in 
June of 2022. 
 
Mike McAnulty 
July 25, 2025 
Page 2 of 3 
2. DSR, Section 3.3: Data Quality Evaluation: As previously commented on other unreclaimed sites 
SESR documents, reference is made to Field XRF to Laboratory Correlation and Regression 
Analysis Procedure for Unreclaimed (UR) and Insufficiently Reclaimed (IR) Sites prepared by 
Pioneer Technical Services, Inc. July 3, 2023, i.e., “Atlantic Richfield 2023b”. EPA believes the field 
XRF method being employed will not yield results of sufficient quality, even with regression 
coefficients applied, to predict whether the sample passed or failed pertinent action levels. 
Consistent with other SESR comments provided by the Agencies, please modify the last sentence 
of the first paragraph to read: “currently under Agency review and consideration (Atlantic 
Richfield Company, 2023b), but have not been approved at this time.” 
3. DSR, Section 4.0: Please update SOPs to current field pH analysis. 
If you have any questions or concerns, please call me at (406) 438-0826.  
 
      Sincerely,  
 
 
 
Molly Roby 
Remedial Project Manager 
 
cc: (email only) 
Butte File 
Chris Greco / Atlantic Richfield  
Josh Bryson / Atlantic Richfield  
Loren Burmeister / Atlantic Richfield  
Dave Griffis / Atlantic Richfield  
Tim Hilmo / Atlantic Richfield 
Jean Martin / Atlantic Richfield  
Irene Montero / Atlantic Richfield  
David A. Gratson / Environmental Standards  
Mave Gasaway / DGS  
Adam Cohen / DGS  
Brianne McClafferty / Holland & Hart  
Daryl Reed / DEQ  
Logan Dudding / DEQ  
Jacob Wheeling/ DEQ 
Alyxandra Ruzevich / DEQ 
Jon Morgan / DEQ  
Kevin Stone / DEQ  
Amy Steinmetz / DEQ  
Katie Garcin-Forba / DEQ 
cc: continued 
Doug Martin / NRDP 
Jim Ford / NRDP 
Katherine Hausrath / NRDP 
Ted Duaime / MBMG 
Gary Icopini / MBMG 
Becky Summerville / MR 
John DeJong / UP  
Robert Bylsma / UP  
John Gilmour / Kelley Drye  
Leo Berry / BNSF  
Robert Lowry / BNSF  
Brooke Kuhl / BNSF 
Lauren Knickrehm / BNSF  
Doug Brannan / Kennedy Jenks  
Matthew Mavrinac / RARUS  
Harrison Roughton / RARUS 
Mark Neary / BSB 
Eric Hassler / BSB 
Chad Anderson / BSB  
Brandon Warner / BSB 
Abigail Peltomaa / BSB  
Sean Peterson/BSB  
Josh Vincent / WET  
Scott Bradshaw / W&C  
Emily Evans / W&C  
 
Mike McAnulty 
July 25, 2025 
Page 3 of 3 
 
cc: continued 
 Pat Sampson / Pioneer  
Karen Helfrich / Pioneer  
Randa Colling / Pioneer  
Scott Sampson / Pioneer  
Jesse Schwarzrock / Pioneer 
Mark Meyer / Pioneer 
Brent Lucyk / Stantec 
Rich Keeland / Aspect Engineering 
Andy White / Aspect Engineering 
Ian Magruder/ CTEC  
CTEC of Butte  
Scott Juskiewicz / Montana Tech  
David Shanight / CDM Smith  
Curt Coover / CDM Smith  
Chapin Storrar / CDM Smith  
Erin Agee / EPA  
Will Lindsey / EPA  
Ben Mathieu / EPA 
Hannah Woolsey / EPA 
Jamie Miller / EPA  
Carolina Balliew / EPA  
Emma Rott / EPA  
Katherine Jenkins / EPA  
Charlie Partridge / EPA 


Re: Comment letter for the Butte Priority Soils Operable Unit (BPSOU) Draft Final 2022 Unreclaimed Sites Sampling: UR-12 Site Evaluation Summary Report (dated April 8, 2025)

McAnulty, Mike

Re: Butte Priority Soils Operable Unit (BPSOU) Final Insufficiently Reclaimed Sites Field Sampling Plan (FSP): BRES No. 26 – Cripple Dump

Atlantic Richfield Company

Montana Resources, LLC

Berkeley Pit and Discharge Pilot Project Quarterly Pilot Project Report Second Quarter 2025

Bryson, Josh

Montana Tech Library 
Digital Commons @ Montana Tech 
Silver Bow Creek/Butte Area Superfund Site Montana Superfund 
Fall 10-31-2025 
RE: 3rd Quarter 2025 – Interim Site-Wide Surface Water 
Monitoring Data Report Silver Bow Creek Butte Area NPL Site, 
Butte Priority Soils Operable Unit Consent Decree-Civil Action No. 
CV 89-039-BU-SHE 
Josh Bryson 
Follow this and additional works at: https://digitalcommons.mtech.edu/superfund_silverbowbutte 
 Part of the Environmental Health and Protection Commons, Environmental Indicators and Impact 
Assessment Commons, and the Environmental Monitoring Commons 
Atlantic Richfield Company 317 Anaconda RoadButte MT 59701
Josh Bryson
Liability Manager
Direct (406) 782-9964
Fax (406) 782-9980
A bp affiliated company
October 31, 2025
Emma Rott
Remedial Project Manager
US EPA Region 8 Montana Office,
Federal Bldg., 10 W. 15th St., Suite 3200
Helena, Montana 59626
William Lindsey, Senior Assistant Regional
Counsel
Mail Code 8 ORC_LE_C
Office of Regional Counsel - CERCLA
1595 Wynkoop Street
Denver, Colorado 80202
Daryl Reed
DEQ, Project Officer
P.O. Box 200901
Helena, Montana 59620-0901
Jonathan Morgan, Esq.
DEQ, Legal Counsel
P.O. Box 200901
Helena, Montana 59620-0901
RE: 3rd Quarter 2025 – Interim Site-Wide Surface Water Monitoring Data Report
Silver Bow Creek Butte Area NPL Site, Butte Priority Soils Operable Unit
Consent Decree-Civil Action No. CV 89-039-BU-SHE
Agency Representatives:
I am writing to you on behalf of Atlantic Richfield Company to submit data collected under the Silver
Bow Creek/Butte Area NPL Site 2023 Final Butte Priority Soils Operable Unit Interim Site-Wide Surface
Water Monitoring Quality Assurance Project Plan.
Data collected during the 3rd quarter of 2025 can be found in the attached spreadsheet, as well as at
the data portal link provided below. An inventory of the attached spreadsheet, along with validation
status of each data set, is provided in Table 1. Please understand that data which has not been validated
should be considered provisional. Fully validated data sets will be provided in the forthcoming 2025
Data Summary Report.
Table 1 – Quarterly Report Data Inventory
SDG
Number Sample Date(s) Event Type1
Analytical Data
Validated
(Yes/No)
Field Data
Reviewed
(Yes/No)
10741874 07/09/25 NF No Yes
10745302 08/06/25 NF No Yes
10745302 09/24/2025 NF No Yes
10744312 07/25/25, 07/28/25 WW No Yes
10744580 07/29/25, 07/30/25 WW No Yes
10745516 08/07/25, 08/08/25 WW No Yes
10748041 08/28/25, 08/29/25 WW No Yes
10749467 09/09/25, 09/10/25 WW No Yes
Atlantic Richfield Company 317 Anaconda RoadButte MT 59701
Josh Bryson
Liability Manager
Direct (406) 782-9964
Fax (406) 782-9980
A bp affiliated company
SDG Sample Date(s) Event Type1
Analytical Data
Validated
(Yes/No)
Field Data
Reviewed
(Yes/No)
10750000 09/14/25, 09/15/25 WW No Yes
1NF = normal flow conditions, WW = wet weather conditions data at Blacktail Creek and Silver Bow Creek stations
Data Portal Login
If you have any questions or comments, please call me at (406) 723-1834.
Sincerely,
Josh Bryson, PE, PMP
Liability Manager
Remediation Management Services Company
An affiliate of Atlantic Richfield Company
Atlantic Richfield Company 317 Anaconda RoadButte MT 59701
Josh Bryson
Liability Manager
Direct (406) 782-9964
Fax (406) 782-9980
A bp affiliated company
Cc:
Chris Greco / Atlantic Richfield Email Doug Brannan / Kennedy Jenks Email
Mike McAnulty / Atlantic Richfield Email Matthew Mavrinac / RARUS Email
Tim Hilmo / Atlantic Richfield Email Harrison Roughton / RARUS Email
Loren Burmeister / Atlantic Richfield Email Brad Gordon / RARUS Email
Dave Griffis / Atlantic Richfield Email Mark Neary / BSB Email
Jean Martin / Atlantic Richfield Email Eric Hassler / BSB Email
Irene Montero / Atlantic Richfield Email Brandon Warner / BSB Email
David A Gratson / Environmental Standards Email Abigail Peltomaa / BSB Email
Mave Gasaway / Davis, Graham & Stubbs, LLP Email Aaron Rains / BSB Email
Adam Cohen / Davis, Graham & Stubbs, LLP Email Sean Peterson / BSB Email
Lucas Satterlee / Davis, Graham & Stubbs, LLP Email Josh Vincent / WET Email
Brianne McClafferty / Holland & Hart LLP Email Kevin Bethke / Woodard & Curran Email
Carolina Balliew / EPA Email Scott Bradshaw / Woodard & Curran Email
Molly Roby / EPA Email Brad Ruff / Woodard & Curran Email
David Shanight / CDM Email Emily Evans / Woodard & Curran Email
Curt Coover / CDM Email Paddy Stoy / Woodard & Curran Email
James Freeman / DOJ Email Jeanette Francisco / Woodard & Curran Email
Amy Steinmetz / DEQ Email Don Booth / Woodard & Curran Email
Logan Dudding / DEQ Email Deah Baker / Woodard & Curran Email
Alyx Ruzevich / DEQ Email Joe McElroy / Pioneer Technical Services, Inc. Email
Katie Garcin-Forba / DEQ Email Mark Meyer / Pioneer Technical Services, Inc. Email
Douglas Martin / NRDP Email Pat Sampson / Pioneer Technical Services, Inc. Email
Jim Ford / NRDP Email Karen Helfrich / Pioneer Technical Services, Inc. Email
Katherine Hausrath / NRDP Email Randa Colling / Pioneer Technical Services, Inc. Email
NRDP Inbox / NRDP Email Troy Colvin / Pioneer Technical Services, Inc. Email
Ted Duaime / MBMG Email Brad Hollamon / Pioneer Technical Services, Inc. Email
Gary Icopini / MBMG Email Joel Thompson / Stantec Email
Becky Summerville / Inland Email Brent Lucyk / Stantec Email
John DeJong / Union Pacific Email Andy White / Aspect Email
Robert Bylsma / Union Pacific Email Rich Keeland / Aspect Email
John Gilmour / Union Pacific (Outside Counsel) Email Ian Magruder / CTEC Email
Brooke Kuhl / BNSF Email CTEC of Butte / CTEC Email
Lauren Knickrehm / BNSF Email Scott Juskiewicz / Montana Tech Library Email
Leo Berry / BNSF (Outside Counsel) Email MiningSharePoint@bp.com Email
Robert Lowry / BNSF (Outside Counsel) Email BPSOU Share Point Upload


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