National Oil and Hazardous Substance Pollution Contingency Plan; National Priorities List: Partial Deletion of the Torch Lake Superfund Site, 64748-64755 [2012-25968]

Agencies

• ENVIRONMENTAL PROTECTION AGENCY

[Federal Register Volume 77, Number 205 (Tuesday, October 23, 2012)]
[Rules and Regulations]
[Pages 64748-64755]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-25968]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 300

[EPA-HQ-SFUND-1986-0005; FRL-9743-1]


National Oil and Hazardous Substance Pollution Contingency Plan; 
National Priorities List: Partial Deletion of the Torch Lake Superfund 
Site

AGENCY: Environmental Protection Agency.

ACTION: Direct final rule.

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SUMMARY: The U.S. Environmental Protection Agency Region 5 is 
publishing a Direct Final Notice of Deletion of the Isle Royale 
Tailings and Michigan Smelter Tailing parcels of Operable Unit 3 (OU3), 
and the Mason Sands Tailings parcel of Operable Unit 1 (OU1) of the 
Torch Lake Superfund Site (Site), located in Houghton County, Michigan 
from the National Priorities List (NPL). The NPL, promulgated pursuant 
to Section 105 of the Comprehensive Environmental Response, 
Compensation, and Liability Act (CERCLA) of 1980, as amended, is an 
appendix to the National Oil and Hazardous Substances Pollution 
Contingency Plan (NCP). This direct final partial deletion is being 
published by EPA, with the concurrence of the State of Michigan through 
the Michigan Department of Environmental Quality (MDEQ), because EPA 
has determined that all appropriate response actions under CERCLA at 
these identified parcels have been completed. However, this partial 
deletion does not preclude future actions under Superfund.
    This partial deletion pertains to the surface tailings, drums, and 
slag piles of Isle Royale Tailings and Michigan Smelter Tailings 
parcels of OU3 and the Mason Sands Tailings parcel of OU1. The 
following land parcels will remain on the NPL and are not being 
considered for deletion as part of this action: Dollar Bay, Point 
Mills, Calumet Lake Tailing, Boston Pond Tailing, North Entry and 
Quincy Smelter.

DATES: This direct final partial deletion is effective December 24, 
2012 unless EPA receives adverse comments by November 23, 2012. If 
adverse comments are received, EPA will publish a timely withdrawal of 
the direct final partial deletion in the Federal Register informing the 
public that the deletion will not take effect.

ADDRESSES: Submit your comments, identified by Docket ID no. EPA-HQ-
SFUND-1986-0005, by one of the following methods:
     https://www.regulations.gov: Follow on-line instructions 
for submitting comments.
     Email: Nefertiti DiCosmo, Remedial Project Manager, at 
dicosmo.nefertiti@epa.gov
     Email: Dave Novak, Community Involvement Coordinator, at 
novak.dave@epa.gov
     Fax: Gladys Beard, NPL Deletion Process Manager, at (312) 
886-2077.

[[Page 64749]]

     Mail: Nefertiti DiCosmo, Remedial Project Manager, U.S. 
Environmental Protection Agency (SR-6J), 77 West Jackson Boulevard, 
Chicago, IL 60604, (312) 886-6148, or Dave Novak, Community Involvement 
Coordinator, U.S. Environmental Protection Agency (SI-7J), 77 West 
Jackson Boulevard, Chicago, IL 60604, (312) 886-7478 or 1-800-621-8431.
     Hand deliver: Dave Novak, Community Involvement 
Coordinator, U.S. Environmental Protection Agency (SI-7J), 77 West 
Jackson Boulevard, Chicago, IL 60604. Such deliveries are only accepted 
during the docket's normal hours of operation, and special arrangements 
should be made for deliveries of boxed information.
    Instructions: Direct your comments to Docket ID no. EPA-HQ-SFUND-
1986-0005. EPA's policy is that all comments received will be included 
in the public docket without change and may be made available online at 
https://www.regulations.gov, including any personal information 
provided, unless the comment includes information claimed to be 
Confidential Business Information (CBI) or other information whose 
disclosure is restricted by statute. Do not submit information that you 
consider to be CBI or otherwise protected through https://www.regulations.gov or email. The https://www.regulations.gov Web site 
is an ``anonymous access'' system, which means EPA will not know your 
identity or contact information unless you provide it in the body of 
your comment. If you send an email comment directly to EPA without 
going through https://www.regulations.gov, your email address will be 
automatically captured and included as part of the comment that is 
placed in the public docket and made available on the Internet. If you 
submit an electronic comment, EPA recommends that you include your name 
and other contact information in the body of your comment and with any 
disk or CD-ROM you submit. If EPA cannot read your comment due to 
technical difficulties and cannot contact you for clarification, EPA 
may not be able to consider your comment. Electronic files should avoid 
the use of special characters, any form of encryption, and be free of 
any defects or viruses.
    Docket: All documents in the docket are listed in the https://www.regulations.gov index. Although listed in the index, some 
information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in the hard 
copy. Publicly available docket materials are available either 
electronically at https://www.regulations.gov or in hard copy at:

Regional Office, U.S. Environmental Protection Agency--Region 5, 77 
West Jackson Boulevard, Chicago, IL, 60604, Hours: Monday through 
Friday, 8:30 a.m. to 4:30 p.m., excluding Federal holidays.
Lake Linden/Hubbell Public Library, 601 Calumet Street, Lake Linden, MI 
49945, (906) 296-0698, Hours: Monday through Friday 8:00am to 4:00 
p.m., Tuesday and Thursday 6:00 p.m. to 8:00 p.m.
Portage Lake District Library, 105 Huron, Houghton, MI 49931, (906) 
482-4570, Hours: Monday, Tuesday and Thursday 10:00 a.m. to 9:00 p.m., 
Wednesday and Friday 10:00 a.m. to 5:00 p.m., and Saturday 12:00 p.m. 
to 5:00 p.m.

FOR FURTHER INFORMATION CONTACT: Nefertiti DiCosmo, Remedial Project 
Manager, U.S. Environmental Protection Agency (SR-6J), 77 West Jackson 
Boulevard, Chicago, IL 60604, (312) 886-4737, dicosmo.nefertiti@epa.gov

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Introduction
II. NPL Deletion Criteria
III. Deletion Procedures
IV. Basis for Site Deletion

I. Introduction

    EPA Region 5 is publishing this Direct Final Notice of Deletion of 
the Isle Royale Tailings and Michigan Smelter Tailings parcels of OU3, 
and Mason Sands Tailings parcel of OU1 of the Torch Lake Superfund 
(Site) from the NPL and requests public comments on this action. The 
NPL constitutes Appendix B of 40 CFR part 300, which is the National 
Oil and Hazardous Substances Pollution Contingency Plan (NCP), which 
EPA promulgated pursuant to section 105 of the Comprehensive 
Environmental Response Compensation and Liability Act (CERCLA) of 1980, 
as amended. EPA maintains the NPL as the list of sites that appear to 
present a significant risk to public health, welfare, or the 
environment. Sites on the NPL may be the subject of remedial actions 
financed by the Hazardous Substance Superfund (Fund). This partial 
deletion of the Torch Lake Superfund Site is proposed in accordance 
with 40 CFR 300.425(e) and is consistent with the Notice of Policy 
Change: Partial Deletion of Sites Listed on the National Priorities 
List (60 FR 55466) on November 1, 1995. As described in 300.425(e)(3) 
of the NCP, sites deleted from the NPL remain eligible for Fund-
financed remedial actions if future conditions warrant such actions.
    Because EPA considers this action to be noncontroversial and 
routine, this action will be effective December 24, 2012 unless EPA 
receives adverse comments by November 23, 2012. Along with this Direct 
Final Notice of Partial Deletion, EPA is co-publishing a Notice of 
Intent for Partial Deletion in the ``Proposed Rules'' section of the 
Federal Register. If adverse comments are received within the 30-day 
public comment period on this partial deletion action, EPA will publish 
a timely withdrawal of this direct final Notice for Partial Deletion 
before the effective date of the partial deletion, and the deletion may 
not take effect. Alternatively EPA may, as appropriate, prepare a 
response to comments and continue with the deletion process on the 
basis of the Notice of Intent for Partial Deletion and the comments 
already received. In this case, there will be no additional opportunity 
to comment on the agency's response.
    Section II of this document explains the criteria for deleting 
sites from the NPL. Section III discusses procedures that EPA is using 
for this action. Section IV discusses the Isle Royale Tailings and 
Michigan Smelter Tailings parcels of OU3 and the Mason Sands Tailings 
parcel of OU1 of the Torch Lake Superfund Site and demonstrates how the 
deletion criteria are met at these land parcels. Section V discusses 
EPA's action to partially delete the Site parcels from the NPL unless 
adverse comments are received during the public comment period.

II. NPL Deletion Criteria

    The NCP establishes the criteria that EPA uses to delete sites from 
the NPL. In accordance with 40 CFR 300.425(e), sites may be deleted 
from the NPL where no further response is appropriate. In making such a 
determination pursuant to 40 CFR 300.425(e), EPA will consider, in 
consultation with the state, whether any of the following criteria have 
been met:
    i. Responsible parties or other persons have implemented all 
appropriate response actions required;
    ii. All appropriate Fund-financed response under CERCLA has been 
implemented, and no further response action by responsible parties is 
appropriate; or
    iii. The remedial investigation has shown that the release poses no 
significant threat to public health or the environment and, therefore, 
the taking of remedial measures is not appropriate.

[[Page 64750]]

    Pursuant to CERCLA section 121(c) and the NCP, EPA conducts five-
year reviews to ensure the continued protectiveness of remedial actions 
where hazardous substances, pollutants, or contaminants remain at a 
site above levels that allow for unlimited use and unrestricted 
exposure. EPA conducts such five-year reviews even if a site is deleted 
from the NPL. EPA may initiate further action to ensure continued 
protectiveness at a deleted site if new information becomes available 
that indicates it is appropriate. Whenever there is a significant 
release from a site deleted from the NPL, the deleted site may be 
restored to the NPL without application of the hazard ranking system.

III. Deletion Procedures

    The following procedures apply to deletion of the Isle Royale 
Tailings and Michigan Smelter Tailings parcels of OU3, and the Mason 
Sands Tailings parcel of OU1 of the Torch Lake Superfund Site:
    (1) EPA consulted with the State of Michigan prior to developing 
this direct final Notice of Partial Deletion and the Notice of Intent 
for Partial Deletion co-published today in the ``Proposed Rules'' 
section of the Federal Register.
    (2) EPA has provided the State 30 working days for review of this 
Direct Final Notice of Partial Deletion and the parallel Notice of 
Intent for Partial Deletion prior to their publication today, and the 
State, through MDEQ, has concurred on the partial deletion of the Site 
from the NPL.
    (3) Concurrently with the publication of this direct final Notice 
of Partial Deletion, a notice of the availability of the parallel 
Notice of Intent for Partial Deletion is being published in the Daily 
Mining Gazette Newspaper, located in Houghton, Michigan. The newspaper 
notice announces the 30-day public comment period concerning the Notice 
of Intent for Partial Deletion of the Site from the NPL. A public 
meeting will be held prior to the end of the comment period to ensure 
the public understands the delisting process and the locations of the 
land parcels proposed for deletion.
    (4) EPA placed copies of documents supporting the proposed partial 
deletion in the deletion docket and made these items available for 
public inspection and copying at the Site information repositories.
    (5) If adverse comments are received within the 30-day public 
comment period on this partial deletion action, EPA will publish a 
timely notice of withdrawal of this Direct Final Notice of Partial 
Deletion before its effective date and will prepare a response to 
comments. EPA may continue with the deletion process on the basis of 
the Notice of Intent for Partial Deletion and the comments already 
received.
    Deletion of a portion of a site from the NPL does not itself 
create, alter, or revoke any individual's rights or obligations. 
Deletion of a portion of a site from the NPL does not in any way alter 
EPA's right to take enforcement actions, as appropriate. The NPL is 
designed primarily for informational purposes and to assist EPA 
management. Section 300.425(e)(3) of the NCP states that the deletion 
of a site from the NPL does not preclude eligibility for future 
response actions, should future conditions warrant such actions.

IV. Basis for Site Deletion

    The following information provides EPA's rationale for deleting the 
Isle Royale Tailings and Michigan Smelter Tailings parcels of OU3 and 
Mason Sands Tailings parcel of OU1 of the Torch Lake Superfund Site 
from the NPL. The Isle Royale Tailings area comprises approximately 64 
acres of cover material northwest of U.S. 41, next to Portage Lake. It 
is located near the town of Houghton, in the northwestern corner of 
Section 5 in Portage Township, Michigan (Township 54 N Range 33 W). The 
Torch Lake Superfund Site Isle Royale Tailings property parcel is also 
referred to as Isle Royale Stamp Mill or Isle Royale Sands. It is the 
parcel of property on the west side of Houghton that was part of a mine 
rock crushing operation. The Site has no relation to the Isle Royale 
that is the island located in Lake Superior.
    A legal description of the Isle Royale Tailings portion of the 
Torch Lake Superfund Site is as follows: A parcel of land in Government 
Lot 2, Section 5, T54N, R33W, City of Houghton, Houghton County, 
Michigan. Commencing at the West \1/4\ corner of said Section 5; thence 
North 1069.47 feet; thence East 1584.79 feet to the point of beginning 
on the Northeasterly right-of-way of the Soo Line Railroad; thence N 
33[deg] 42' 20'' E 229.36 feet to the South right-of-way (66-ft. R/W) 
of Carlos Street of the recorded plat of Royale Isle Subdivision; 
thence S 56[deg] 17'40'' E 380.00 feet along said Carlos Street right-
of-way and extension thereof; thence S 33[deg] 42' 20'' W 250.29 feet 
to the Northeasterly right-of-way of said Soo railroad; thence along 
said right-of-way on a curve to the right N 53[deg] 08' 19'' W 380.68 
feet more or less to the point of beginning.
    The Michigan Smelter Tailings parcel is located in a 15-acre, low-
lying area of stamp sands east of Houghton Canal Road on the shores of 
Portage Lake, in Sections 28, 33, and 34 of Adams/Stanton Township, 
Michigan (55 N Range 34 W). There is a piece of property nearby, on the 
west side of Houghton Canal Road, known as Michigan Smelter that 
includes the buildings and abandoned materials where industrial 
activities took place. This property is not part of the Torch Lake 
Superfund Site and was not investigated or remediated as part of the 
Site activities. There may be high levels of arsenic or other 
contaminants associated with past mining activity in that area, but 
such contamination would not be considered as part of the Torch Lake 
Superfund Site.
    The legal description of the Michigan Smelter Tailings portion of 
the Torch Lake Superfund Site is as follows--Parcel 1: Section 33, 
T55N, R34W, Adams Township, Houghton County, Michigan, Government Lot 1 
lying North of County Road 554, except commencing at the North \1/4\ 
corner; thence South 320 feet to P.O.B.; thence Southeasterly 90.18 
feet; thence Northeasterly 569.59 feet; thence North 202.57 feet; 
thence Southeasterly 410.48 feet to South right of way of Canal Road; 
thence Southeasterly along Canal Road 888 feet more or less; thence 
South 676 feet to South line of Government Lot 1; thence Southwesterly 
1692 feet to the West line of Government Lot 1; thence North 980.78 
feet to P.O.B. Parcel 2: Section 34, T55N, R34W, Adams Township, 
Houghton County, Michigan, Government Lot 3 lying North of County Road 
554, also West 121.90 feet of Government Lot 4 lying North of County 
Road 554. Parcel 3: Section 28, T55N, R34W, Stanton Township, Houghton 
County, Michigan, part of Government Lot 4, commencing North 00[deg] 
34' 31'' West 35.08 feet from South \1\2\; Corner; thence North 00[deg] 
34' 31'' West 1252.70 feet; thence south 89[deg] 33' 12'' East 102.60 
feet; thence South 89[deg] 35' 56'' East 151.39 feet to shore; thence 
South 46[deg] 13' 52'' East 804.26 feet; thence South 55[deg] 13' 38'' 
East 1279.14 ; thence West 713.78 feet; thence North 46[deg] 48' 32'' 
West 766.52 feet; thence South 43[deg] 09' 07'' West 66 feet; thence 
South 01[deg] 45' 30'' East 57.69 feet; thence South 08[deg] 31' 32'' 
West 141.99 feet; thence South 10[deg] 03' 39'' West 69.72 feet; thence 
South 71[deg] 33' 12'' West 552.04 feet to P.O.B.
    The Mason Sands Tailings area is about 225 acres and is located 
within a fenced in area south of M-26 and expands until the land meets 
the lake (Torch Lake). It is adjacent to the Village of Mason and is 
located in Sections 23, 26, and 27 of Township 55 North, Range

[[Page 64751]]

33 West. Located within the Mason Sands parcel of the Site are 
dilapidated industrial structures, building foundations, and other 
debris. These abandoned structures, foundations and debris are not part 
of the Torch Lake Superfund Site and were not investigated or 
remediated. The surface tailings at this Mason area constitute the area 
addressed by the Torch Lake Site remedial action. The legal description 
of the Mason Sands portion of the Torch Lake Superfund Site is as 
follows. Government. Lot 2--Section 14--T.55N-R.33 W lying East of 
State Highway M-26 Right-of-Way, except as follows: Commencing at a 
point on shore of Torch Lake 500' from meander post on line between 
Sections 13 & 14, thence N.55[deg]40' West to North boundary line of 
Lot 2 Section 14, thence East along North boundary of said Lot 2 to 
shore of Torch Lake, thence Southwesterly along said lake to Point of 
Beginning except Right-of-Way of C&H RR. 53.32.A. Gov't. Lots 1, 2, 3, 
and 4--Section 23--T.55 N.-R.33 W. lying East of abandoned railroad 
Right-of-Way, except as follows: Part of Government Lot 4, Section 23, 
and Government Lot 5, Section 26, T.55N, R.33W, Osceola Township, 
Houghton County, Michigan, more particularly described as follows: 
Commencing at a section corner common to Sections 22, 23, 26 and 27, 
T.55N, R.33W; then due South 480.66 feet to the point of beginning: 
thence N43[deg] 54' 04'' E 1164.53 feet; thence S51[deg] 08' 38''E 
124.89 feet to a point located in the Northwesterly right-of-way line 
of State Highway M-26; thence S00[deg] 02' 18'' W 112.29 feet to a 
point located in the Southeasterly right-of-way line of State Highway 
M-26; thence S50[deg] 16' 58'' E 21.89 feet; thence S35[deg] 39' 41'' E 
251.20 feet; thence S32[deg] 31' 34'' W 189.24 feet; thence N55[deg] 
59' 01'' W 158.27 feet; thence N58[deg] 48' 17'' W 75.02 feet to a 
point located in the Northwesterly right-of-way line of an abandoned 
railroad; thence S32[deg] 31' 34'' W 44.66 feet along said 
Northwesterly right-of-way line of an abandoned railroad; thence on a 
curve to the right, having a radius of 2814.93 feet a long chord 
bearing and distance of S39[deg] 15' 17'' W 659.63 feet, 661.15 feet 
along said Northwesterly right-of-way line of an abandoned railroad; 
thence continuing along said abandoned railroad right-of-way S45[deg] 
59' 00'' W 458.12 feet; thence due North 468.57 feet to the point of 
beginning, containing 461,453 square feet, which is 10.59 acres 
including road right-of-ways. Government. Lot 5--Section 26--T.55N-
R.33W. lying East of abandoned railroad Right-of-Way, except as 
follows: Part of Government Lot 4, Section 23, and Government Lot 5, 
Section 26, T.55N, R.33W., Osceola Township, Houghton County, Michigan, 
more particularly described as follows: Commencing at a section corner 
common to Sections 22, 23, 26, and 27, T.55N, R.33W.; then due South 
480.66 feet to the point of beginning: thence N43[deg] 54' 04'' E 
1164.53 feet; thence S51[deg] 08' 38'' E 124.89 feet to a point located 
in the Northwesterly right-of-way line of State Highway M-26; thence 
S00[deg] 02' 18'' W 112.29 feet to a point located in the Southeasterly 
right-of-way line of State Highway M-26; thence S50[deg] 16' 58'' E 
21.89 feet; thence S35[deg] 39' 41'' E 251.20 feet; thence S32[deg] 31' 
34'' W 189.24 feet; thence N55[deg] 59' 01'' W 158.27 feet; thence 
N58[deg] 48' 17'' W 75.02 feet to a point located in the Northwesterly 
right-of-way line of an abandoned railroad; thence S32[deg] 31' 34'' W 
44.66 feet along said Northwesterly right-of-way line of an abandoned 
railroad; thence on a curve to the right, having a radius of 2814.93 
feet a long chord bearing and distance of S39[deg] 15' 17'' W 659.63 
feet, 661.15 feet along said Northwesterly right-of-way line of an 
abandoned railroad; thence continuing along said abandoned railroad 
right-of-way S45[deg] 59' 00'' W 458.12 feet; thence due North 468.57 
feet to the point of beginning, containing 461,453 square feet, which 
is 10.59 acres including road right-of-ways. Government Lot 1--Section 
27--T.55N-R.33W lying east of abandoned railroad Right-of-Way. That 
portion of Government Lot 2--Section 27--T.55N-R.33W lying in the West 
\1/2\ of the Southwest \1/4\ of said Section. It being understood and 
intended that the above described land extends to the waters edge of 
Torch Lake and to include any tailing sands and slag that may have 
accreted to said land, or to other lands in Section 26--T.55N.--R.33W.

Site Background and History

Site Location

    The Site is located on the Keweenaw Peninsula in Houghton County, 
Michigan. The Site (CERCLIS ID MID980901946) includes Torch Lake, the 
northern portion of Portage Lake, and the northern entry of Torch Lake. 
The following areas were selected for remedial measures and thus became 
part of the Site: defined areas of stamp sands, tailing piles, and slag 
materials along the shore of and in the vicinity of Torch Lake, 
Northern Portage Lake, Keweenaw Waterway, Lake Superior, Boston Pond, 
Calumet Lake, Lake Linden, Hubbell/Tamarack City, Mason, Calumet Lake, 
Michigan Smelter, Isle Royale, Gross Point, and Quincy Smelter. These 
defined areas were not investigated at depth and were defined as part 
of the Torch Lake Superfund Site the surficial materials (stamp sands, 
tailings, and slag) on these areas and their relative locations to the 
Torch Lake water body. These areas cover over 600 acres. During the 
Site investigation, samples were taken of the surface (0-6 inches) and 
shallow subsurface (0-3 feet) stamp sands, tailings, and slag piles at 
the frequency of approximately one composite sample per 20 acre-parcel. 
Data generated reflected similar chemical characteristics in all 
samples collected. This data was sufficient to assume homogeneity of 
these materials and to support selection of the Site's remedial action.
    The remedial action included the installation of a soil vegetative 
cover over these defined areas of stamp sands, tailings, and slag in 
order to meet the Site Remedial Action Objectives (RAOs). The remedial 
action only addressed surfurce materials associated with the covered 
land parcels. There may be non-Site related contamination with depth or 
in the vicinity of these defined areas of stamp sands, tailings, and 
slag that are not addressed by this Site remedial action (i.e., 
vegetative cover). This potential contamination was not evaluated or 
addressed as part of the remedial measures for the Torch Lake Superfund 
Site. Non-Site related contamination, if identified in the future, will 
not be addressed by a subsequent action as part of the Torch Lake 
Superfund Site's remedial action.

Site History

    Torch Lake was the site of copper milling and smelting facilities 
and operations for over 100 years. Torch Lake was a repository of 
milling wastes, and served as the waterway transportation to support 
the mining industry. The first mill opened on Torch Lake in 1868. At 
the mills, copper was extracted by crushing or stamping the rock into 
smaller pieces and driving them through successively smaller meshes. 
The copper and crushed rocks were separated by gravimetric sorting in a 
liquid medium. The copper was sent to a smelter. The crushed rock 
particles, called tailings, were discarded along with mill processing 
water, typically by pumping them into the Lake.
    Mining output, milling activity, and tailing production peaked in 
the Keweenaw Peninsula in the early 1900s to 1920. All of the mills at 
Torch Lake were located on the west shore of the Lake and many other 
mining mills and smelters were located throughout the Keweenaw 
Peninsula. In the early

[[Page 64752]]

1900s, advances in technology allowed recovery of copper from tailings 
previously deposited in Torch Lake. Dredges were used to collect 
submerged tailings which were then screened, recrushed, and gravity 
separated. An ammonia leaching process involving cupric ammonium 
carbonate was used to recover copper and other metals from conglomerate 
tailings. During the 1920s, chemical reagents were used to further 
increase the efficiency of reclamation. The chemical reagents included 
lime, pyridine oil, coal tar creosotes, wood creosote, pine oil, and 
xanthates. After reclamation activities were complete, chemically 
treated tailings were returned to the lake. In the 1930s and 1940s, the 
Torch Lake mills operated mainly to recover tailings in Torch Lake. In 
the 1950s, copper mills were still active; but by the late 1960s, 
copper milling had ceased.
    Over 5 million tons of native copper was produced from the Keweenaw 
Peninsula and more than half of this was processed along the shores of 
Torch Lake. Between 1868 and 1968, approximately 200 million tons of 
tailings were dumped into Torch Lake filling at least 20 percent of the 
Lake's original volume.
    In June 1972, a discharge of 27,000 gallons of cupric ammonium 
carbonate leaching liquor occurred into the north end of Torch Lake 
from the storage vats at the Lake Linden Leaching Plant. The Michigan 
Water Resources Commission (MWRC) investigated the spill. The 1973 MWRC 
report discerned no deleterious effects associated with the spill, but 
did observe discoloration of several acres of the lake bottom 
indicating previous discharges. In the 1970s, environmental concern 
developed regarding the century-long deposition of tailings into Torch 
Lake. High concentrations of copper and other heavy metals in Torch 
Lake sediments, toxic discharges into the Lake, and fish abnormalities 
prompted many investigations into long and short-term impacts 
attributed to mine waste disposal. The International Joint Commission's 
Water Quality Board designated the Torch Lake basin as a Great Lakes 
Area of Concern (AOC) in 1983. Also in 1983, the Michigan Department of 
Public Health announced an advisory against the consumption of Torch 
Lake sauger and walleye fish due to tumors of unknown origin.
    The Torch Lake Site was proposed for inclusion on the National 
Priorities List (NPL) in October of 1984, Federal Register (49 FR 
40320). The Site was placed on the NPL in June 1986, (51 FR21054). The 
Torch Lake Site is also on the list of sites identified under 
Michigan's Natural Resources and Environmental Protection Act 451 Part 
201. Residential use is planned for these land parcels after they are 
deleted from the NPL.

Remedial Investigation and Feasibility Study (RI/FS)

    On May 9, 1988 Special Notice Letters were issued to Universal Oil 
Products and Quincy Mining Company to perform a Remedial Investigation/
Feasibility Study (RI/FS). Universal Oil Products was the successor 
corporation of Calumet Hecla Mining Company which operated its milling 
and smelting on the shore of Lake Linden and disposed the generated 
tailings in the area. On June 13, 1988 a Notice Letter was issued to 
Quincy Development Company, which was the current owner of a tailing 
pile located on the Lake shore of Mason City. Negotiations for the RI/
FS Consent Order with these Potentially Responsible Parties (PRPs) were 
not successful due to issues such as the extent of the Site, and the 
number of PRPs. Subsequently, EPA contracted with Donohue & Associates 
in November 1988 to perform the RI/FS at the Site.
    On June 21, 1989 EPA collected a total of eight samples from drums 
located in the Old Calumet and Hecla Smelting Mill Site near Lake 
Linden, the Ahmeek Mill Site near Hubbell City, and the Quincy Site 
near Mason. On August 1, 1990 nine more samples were collected from 
drums located above the Tamarack Site near Tamarack City. Based on the 
results of these samples, EPA determined that some of these drums may 
have contained hazardous substances. During the week of May 8, 1989 EPA 
also conducted ground penetrating radar and a sub bottom profile 
(seismic) survey of the bottom of Torch Lake. The area in which this 
survey was conducted is immediately off-shore from the Old Calumet and 
Hecla Smelting Mill Site. The survey located several point targets 
(possibly drums) on the bottom of Torch Lake.
    Due to the size and complex nature of the Site, six OUs have been 
defined for the Site. OU1, OU2 and OU3 are the remedial OUs; and OU4, 
OU5 and OU6 are the removal OUs. OU1 includes surface tailings, drums, 
and slag piles on the western shore of Torch Lake. Approximately 500 
acres of tailings were previously exposed surficially in OU1. The 
Hubbell/Tamarack Tailings, the Lake Linden Tailings and Mason Sands 
parcels are included in OU1. OU2 includes groundwater, surface water, 
submerged tailings and sediment in Torch Lake, Portage Lake, the 
Portage channel, and other surface water bodies at the Site. OU3 
includes the North Entry of Lake Superior Tailings, Michigan Smelter 
Tailings, Quincy Smelter Tailings, Calumet Lake Tailings, Isle Royale 
Tailings, Boston Pond Tailings, and Grosse-Point (Point Mills) 
Tailings, and Dollar Bay Tailings. Remedial Investigations have been 
completed for all six OUs. The RI for OUs 1 and 3 only investigated the 
surface (0-6 inches) and shallow subsurface (0-3 feet) stamp sands. In 
addition, the RI assumed that the stamp sands were homogenous, i.e., 
the stamp sands had similar characteristics wherever they were located.
    The sampling performed to characterize the OU3 and OU1 tailings was 
adequate to select the Torch Lake Site remedial action based on the 
homogeneity of the parameters measured, the distribution of contaminant 
compounds, and the relatively low levels of contaminants found. While 
hot spot contamination may exist, it is not attributable to tailings 
composition, and could not be reliably located or predicted using any 
reasonable sampling program. The RI and Baseline Risk Assessment (BRA) 
reports for OU1 were finalized in July 1991. The RI and BRA reports for 
OU3 were finalized on February 7, 1992.

Record of Decision Findings

    The Record of Decision (ROD) for OU1 and OU3 was signed on 
September 30, 1992; and the ROD for OU2 was signed on March 31, 1994.

Operable Unit 1 and Operable Unit 3 ROD (September 30, 1992)

    The selected remedial action for the various tailings areas was a 
soil and vegetative cover, and deed restrictions to control the 
migration of tailing piles. The cover prevents direct contact exposures 
as well as prevents erosion from surface water runoff and the wind. The 
cover helps prevent the further degradation of Torch Lake's eco-system, 
allowing the Lake to recover over time.
    The RAOs for OU1 and OU3 were developed as a result of data 
collected during the RI and included activities to reduce or minimize 
the exposure to and release of contaminants in tailings and/or slag 
located at the Site. These include:
    1. Reduce or minimize potential risks to human health associated 
with the inhalation of airborne contaminants from the tailings and/or 
slag located at the Site;
    2. Reduce or minimize potential risks to human health associated 
with direct contact with and/or the ingestion of the tailings and/or 
the slag located at the Site;

[[Page 64753]]

    3. Reduce or minimize the release of contaminants in tailings to 
the groundwater through leaching; and
    4. Reduce or minimize the release of contaminants in tailings to 
the surface water and sediment by soil erosion and/or air deposition.
    All of the RAOs for the Torch Lake parcels in this deletion package 
have been met with the successful implementation of a vegetative cover 
over the stamp sands, tailing piles, and slag materials and with the 
implementation of deed restrictions which prevent disturbance of the 
vegetative covers. The vegetative soil cover reduces airborne and 
direct contact exposure to the contaminants in the stamp sands, 
tailings, and slag. The affected groundwater is part of OU2, for which 
the selected remedy was no action. OU2 was deleted from the NPL in 2002 
and since the selected remedy for groundwater was no action, the 
reduction or minimization of the release of contaminants in tailings to 
the groundwater through leaching does not apply to OU's 1 and 3. The 
vegetative soil cover serves to stabilize the stamp sands, tailings, 
and slag and reduce the erosion of these materials and their associated 
contaminants to the surface water and sediment.
    A 12 acre portion of the Isle Royale tailings in OU3 was excluded 
from the area to be covered with soil and vegetation because it was 
developed as a sewage treatment facility. The remaining 48 acres was 
covered with soil and vegetation by the Portage Lake Water and Sewage 
Authority as part of the sewage treatment facility development plan.
    A 90 acre portion of the Isle Royale Tailings was developed as a 
residential area and was excluded from the area to be covered with soil 
and vegetation.
    A 60 acre area of the Isle Royale Tailings portion is currently 
being used to make cement blocks and as a finished block storage area 
for the Superior Block Company and was excluded from the area to be 
covered with soil and vegetation. The owner and/or operator of Superior 
Block Company must use dust control measures such as water spray during 
the operation of mining and other activities in order to reduce the 
release of dust into the air.

Operable Unit 2 ROD (March 31, 1994)

    The selected remedy for OU2 (groundwater, surface water and 
sediments associated with the Site), which is not the focus of this 
partial deletion, was ``No Action'' with long-term monitoring and 
Institutional Controls with respect to groundwater use. OU2 is impacted 
by OU1 and OU3 because wind-blown and eroded tailings from OU1 and OU3 
migrate into the surface water and contaminate the sediment. The 
contaminated stamp sand serves as a continuing source of 
environmentally harmful contamination to the Lake and diminished the 
effectiveness of the Lake's natural sedimentation process.

Remedial Design

    In August 1994, an Interagency Agreement (IAG) was signed with the 
United States Department of Agriculture (USDA)-Natural Resources 
Conservation Service (NRCS) to perform remedial design (RD) work. The 
RD was conducted in conformance with the 1992 ROD and was completed for 
the entire Site in September 1998.

Construction Activities

    Actual on-site construction began in June 1999 and was completed in 
September 2005. A Preliminary Close-Out Report (PCOR) documenting 
construction completion was signed on September 23, 2005.

Operable Unit 1

    Mason Sands Tailings (225 acres covered) were covered in October 
2002. Just prior to on-site construction activities at Mason Sands, the 
USDA-NRCS commissioned Michigan Technological University to conduct an 
archaeological survey to evaluate and document the cultural remnants at 
the Mason Sands portion of the Site. This was done because of the 
numerous historical mining and milling related relics located around 
the Mason area and the concern over losing important cultural remnants 
as a result of remedy implementation. The results of the survey were 
presented in a report dated May 2001, ``Archeological Survey Report of 
the Quincy Mining Company Torch Lake Smelter & Reclamation Plant at 
Mason Sands Torch Lake EPA Superfund Site'', which was filed in the 
EPA's Torch Lake Site Administrative Record. The May 2001 report 
concluded that implementation of the remedy at the Mason Sands portion 
of the Site would have only a minor negative impact on cultural and 
historical values, and therefore, EPA proceeded with remedy 
implementation.
    The remedial design specifications were modified during the 
implementation phase and sandy soil, consisting of six to ten inches of 
sandy-loam soil and a vegetative mat were used in place of topsoil. The 
vegetative mat was achieved through a seed mix applied directly on top 
of the sandy-loam soil. The seed mix was typically applied at 
approximately 90 pounds per acre. The typical seed mix contained six 
species of plants, including perennial ryegrass (Lolium perene), tall 
fescue (Festuca arundinacea), creeping red fescue (Festica rubra), red 
clover (Trifolium pratense), alfalfa (vernal Medicago falcata), and 
birdsfoot trefoil (Lotus comiculatus). This mix of plant species was 
selected because of their rapid growth rate and relative resilience 
with minimal maintenance. Rapid stabilization of the soil cover 
material with vegetation was important at the Site in order to avoid 
soil washouts and to accommodate the short growing season. Variations 
of this seed mix were applied to a small number of areas to accommodate 
landowner preference. Overall, the vegetative growth is well 
established and is stabilizing the soil portion of the cover material.
    The sandy-loam borrow soil was located and obtained by construction 
firms under contract with the USDA-NRCS to implement the remedy and met 
modified USDA-NRCS soil specifications. Borrow soils for Mason Sands 
were obtained directly across the narrow Torch Lake channel located on 
the south-east shore of the Mason Sands. Remedial action construction 
activities were performed according to approved design and 
specifications at Mason Sands and it is anticipated that the cover 
material and shoreline protection will continue to meet remedial action 
objectives established for the Site.

Operable Unit 2

    No physical work was required as part of the OU2 No Action ROD, 
thus there were no construction activities for this OU. EPA deleted OU2 
in the April 2002 partial NPL delisting.

Operable Unit 3

    Remedial action construction activities were performed according to 
approved design and specifications at Michigan Smelter Tailings. The 
1992 ROD for OU1and OU3 designated some exceptions to the soil cover 
for the Isle Royale Tailings area. Theses exceptions included portions 
that were being developed or used for other purposes. Areas that were 
covered continued the same soil and seed mix as used in OU1. In 2004, 
EPA completed the remedy at the Isle Royale Tailings by placing a 6-
inch vegetative cover over area stamp sands and placing rip-rap along 
the shoreline of the area. The change to include rip-rap was documented 
in a Memo to the File dated July 7, 2004.

Institutional Controls

    In 1994, EPA issued an Administrative Order on Consent (AOC)

[[Page 64754]]

to all affected landowners requiring them, within six months of the 
AOC, to implement the appropriate deed restriction on their property. 
The deed restrictions run with the land and bind future owners to the 
restrictions. The institutional controls serve to protect vegetative 
cover and thus prevent residual mining contamination from entering 
surface water by ensuring that no disturbance of vegetative cover 
occurs; or if disturbance occurs, the owner is required to replace soil 
and repair vegetative cover. There are Restrictive Covenants on 
approximately half of the properties at the Site, which include the 
Michigan Smelter Tailings property. The Declaration of Restrictive 
Covenants for Isle Royale Tailings was signed on October 14, 2008. The 
following restriction applies; ``If during the process of any 
development, building, construction, or other activity on the property 
by or with consent from the owner of the property, the cover is 
disturbed so that upon completion of the development, construction, 
building or other activity stamp sand is exposed, then the owner of the 
property shall cover the exposed stamp sand and shall re-vegetate the 
re-covered area''.

Cleanup Goals

    The objectives of the remedies were to control exposures to Site 
contaminants and control erosion of stamp sands, tailings and slag to 
the surface water and sediments by covering them with vegetation. The 
remedial actions at Isle Royale Tailings, Michigan Smelter Tailings, 
and Mason Sands Tailings are operational and functional. The remedial 
actions are functioning properly and performing as designed.

Operation and Maintenance (O&M)

    EPA conducted activities necessary to ensure that the implemented 
remedy at Isle Royale Tailings, Michigan Smelter Tailings, and Mason 
Sands was operational and functional for a period up to three years 
after remedial construction at the last parcel. The remedy was jointly 
determined by EPA and MDEQ to be functioning properly and performing as 
designed in September 2008. EPA conducted annual observations of the 
remediated areas for three years after construction, and conducted 
major repairs as necessary, on each area where the remedy was 
implemented.
    In 2002, EPA conducted a study of terrestrial environments at the 
Site to characterize and document the ecological conditions of the 
tailing areas before and after implementation of the remedy. The 
results of the study were presented in the Torch Lake Stamp Sand 
Evaluation Report dated March 2003. The report indicated a significant 
environmental improvement. The soil and vegetative cover has resulted 
in the development of a soil stabilizing plant community and habitat 
which has attracted birds and mammals.
    In 1999 and 2000, as part of long-term monitoring, EPA conducted 
environmental sampling as a way to establish the environmental baseline 
conditions of Torch Lake. The results of the sampling efforts are 
presented in the Baseline Study Report dated August 2001. Future long-
term monitoring events will be conducted by MDEQ and the results 
compared to the 2001 baseline study to identify changes and/or 
establish trends in lake conditions. MDEQ has had the lead for OU2 
monitoring since 2002, when OU2 was deleted from the NPL.
    In 2004, MDEQ conducted sampling activities for monitoring of Torch 
Lake. The monitoring was undertaken to document and measure the status 
of natural recovery of the Lake following remedial actions. The 2004 
sampling work included assessing the benthic community populations, 
measuring sediment toxicity to benthic invertebrates, measuring 
concentrations of metals and semi-volatile organic compounds in 
sediment and groundwater, and studying the sedimentation process in 
lake sediments. The 2004 MDEQ long-term monitoring data includes 
reports with information relevant to sedimentation rates and sediment 
toxicity.
    MDEQ will be conducting O&M of the shoreline protection and cover 
material. In accordance with the September 1998 Superfund Site Contract 
(SSC) signed by EPA and MDEQ, O&M was to begin three years after the 
remedy implementation or when the remedy was jointly determined by EPA 
and MDEQ to be functioning properly as designed, whichever is earlier. 
This milestone was reached in September 2008 for Isle Royale Tailings, 
Michigan Smelter Tailings, and Mason Sands Tailings; along with several 
other Torch Lake property parcels.

Five-Year Review (FYR)

    EPA conducted FYRs of the Site in 2003 and 2008. In the reviews, 
EPA concluded that all remedial actions are complete. The 2008 FYR 
noted that the Isle Royale, Michigan Smelter Tailings and Mason Sands 
remedies are protective of human health and the environment in the 
short-term. The 2008 FYR calls for continued documentation from 
landowners at the Site to verify proper deed restrictions are in place. 
The next FYR will be conducted in 2013.

Community Involvement

    Public participation activities have been satisfied as required in 
CERCLA section 113(k), 42 U.S.C. 9613(k), and CERCLA section 117, 42 
U.S.C. 9617. Documents in the deletion docket, which EPA relied on for 
recommendation of the Partial Deletion of this Site from the NPL, are 
available to the public in the information repositories, and at 
www.regulations.gov. Documents in the docket include maps which 
identify the specific parcels of land that are proposed in this Notice 
(Isle-Royale Tailings, Michigan Smelter Tailings, and Mason Sands). 
Additional community outreach will be conducted to ensure the 
transparency of the deletion process; to increase awareness of 
potential non-Site related environmental issues near the deleted 
parcels; and to help the community understand exactly where the deleted 
portions of the Torch Lake Site are located.

Determination That the Site Meets the Criteria for Deletion in the NCP

    The NCP (40 CFR 300.425(e)) states that portions of a site may be 
deleted from the NPL when no further response action is appropriate. 
EPA, in consultation with the State of Michigan, has determined that no 
further action is appropriate.

V. Deletion Action

    The EPA, with concurrence of the State of Michigan, through MDEQ, 
has determined that all appropriate response actions under CERCLA, 
other than operation, maintenance, monitoring and five-year reviews, 
have been completed. Therefore, EPA is deleting the Isle Royale 
Tailings and Michigan Smelter Tailings parcels of OU3 and the Mason 
Sands Tailings parcel of OU1 of the Torch Lake Superfund Site from the 
NPL.
    Because EPA considers this action to be noncontroversial and 
routine, EPA is taking it without prior publication. This action will 
be effective December 24, 2012 unless EPA receives adverse comments by 
November 23, 2012. If adverse comments are received within the 30-day 
public comment period, EPA will publish a timely withdrawal of this 
direct final notice of partial deletion before the effective date of 
the partial deletion and it will not take effect. EPA may prepare a 
response to comments and continue with the deletion process on the 
basis of the notice of intent to partially delete and the comments

[[Page 64755]]

already received. In such case, there will be no additional opportunity 
to comment.

List of Subjects in 40 CFR Part 300

    Environmental protection, Air pollution control, Chemicals, 
Hazardous waste, Hazardous substances, Intergovernmental relations, 
Penalties, Reporting and recordkeeping requirements, Superfund, Water 
pollution control, Water supply.

    Dated: September 19, 2012.
Susan Hedman,
Regional Administrator, U.S. EPA, Region 5.

    For the reasons set out in this document, 40 CFR part 300 is 
amended as follows:

PART 300--[AMENDED]

0
1. The authority citation for part 300 continues to read as follows:

    Authority: 33 U.S.C. 1321(c)(2); 42 U.S.C. 9601-9657; E.O. 
12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; E.O. 12580, 52 FR 
2923; 3 CFR, 1987 Comp., p. 193.

Appendix B--[Amended]

0
2. In table 1 of Appendix B to part 300, under Michigan ``MI'', the 
entry for ``Torch Lake'', ``Houghton County, Michigan'' is revised to 
read as follows:

Appendix B to Part 300--National Priorities List

                                       Table 1--General Superfund Section
----------------------------------------------------------------------------------------------------------------
               State                        Site name              City/County               (Notes)\ a\
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
MI.................................  Torch Lake............  Houghton..............  P
 
                                                  * * * * * * *
 
(a) A = Based on issuance of health advisory by Agency for Toxic Substances and Disease Registry (if scored, HRS
                                           score need not be >28.50).
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
P = Sites with partial deletion(s).

[FR Doc. 2012-25968 Filed 10-22-12; 8:45 am]
BILLING CODE 6560-50-P