EarthWINS Daily #3.51
1/14/98
Date: Tue, 13 Jan 1998 22:15:23 -0800 (PST)
From: Alice McCombs <amccombs@igc.apc.org>
Contents
1. Excerpt, GREENLines Issue #541: More Mine Opposition
in Wisconsin
2. CALL FOR PARTICIPANTS. The 4th International Interdisciplinary
Conference
on the Environment, Washington D.C., July 7-10, 1998
3. RAG RAG
4. Recent mining industry posts from Enviromine
a. Deep Sea Mining
b. Publications on Uranium Mining
c. RE: Reclamation Bonding (Compilation of Responses)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1. Excerpt, GREENLines Issue #541: More Mine Opposition
in Wisconsin
rfeather
list.actgreen
6:36 PM Jan 13, 1998
(at unm.edu)
GREENLines, Wednesday, Jan. 14, 1998 from GREEN,
the GrassRoots Environmental Effectiveness Network,
A project of Defenders of Wildlife
(505) 277-8302 or email rfeather@defenders.org
MORE MINE OPPOSITION: The 1/13 St. Paul Pioneer Press reported
a poll
of Wisconsin residents indicate more than half oppose the proposed
Exxon mining project at Crandon. Opponents of the mine said the
results offer more proof of the public's opposition to the proposed
copper and zinc mine. The poll, conducted in October, showed
52.5
percent opposed the mine, 28.3 support it and 19.2 were undecided.
Mine opponents contend the mine will pollute ground water and the Wolf
River.
==========================================================
Roger Featherstone -- Director
GrassRoots Environmental Effectiveness Network
A project of Defenders of Wildlife
PO Box 40046, Albuquerque, NM 87196-0046
(505) 277-8302 fax:(505) 277-5483 e-mail: rfeather@defenders.org
check out our web page at: http://www.defenders.org/grnhome.html
==========================================
Back to top
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2. CALL FOR PARTICIPANTS. The 4th International Interdisciplinary
Conference
on the Environment, Washington D.C., July 7-10, 1998
Date: Tue, 13 Jan 1998 20:11:29 -0500 (EST)
From: kantard@mindspring.com (Demetri Kantarelis)
CALL FOR PARTICIPANTS. The 4th International Interdisciplinary Conference
on the Environment will be held in Washington D.C., July 7-10, 1998.
You
may participate as session organizer, presenter of one or two papers,
chair, moderator, discussant, or observer. The deadline for abstract
submission and participation is January 20, 1998. For more information
please contact Demetri Kantarelis or Kevin L. Hickey through
Regular Mail: IEA/Kantarelis-Hickey
Assumption College
500 Salisbury Street
Worcester, MA 01615, USA
Tel: (508) 767-7557 (Kantarelis), (508) 767-7296 (Hickey),
Fax: (508) 767-7382
E-mail:
(Kantarelis) dkantar@eve.assumption.edu
(Hickey) khickey@eve.assumption.edu
or the World Wide Web at:
http://www.assumption.edu/html/academic/conf/iicecall.html
Back to top
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3. RAG RAG
Date: Tue, 13 Jan 1998 16:12:40 -0800 (PST)
From: rags@ran.org (Marika Holmgren)
Sender: owner-rags-rap@igc.apc.org
Wanna be famous? Get published in the RAG RAG!
Seeking submissions for the RAG RAG - a newsletter of the grassroots
environmental movement. Please send articles and/or photos from
recent
actions, events, or goings-on for inclusion in the newsletter.
Send articles via email and photos as attached document on email or
via
snail mail.
Deadline Friday, January 30.
Thanks!
Marika
--------------------------------------------------------------------------------
Marika Holmgren, Grassroots Coordinator
RAINFOREST ACTION NETWORK
221 Pine, 5th Floor
San Francisco, CA 94104
Phone: (415) 398-4404 Fax:
(415) 398-2732
rags@ran.org
www.ran.org
Rainforest Action Network works to protect the Earth's rainforests and
support the rights of their inhabitants through education, grassroots
organizing, and non-violent direct action.
T O S U B S C R I B E T O T H E
R A G S E M A I L L I S T
Send a message to <majordomo@igc.apc.org> with only the following
in the body:
subscribe rags-rap
Note: You must send from the account at which you wish to receive messages.
_____________________
T O U N S U B S C R I B E
Send a message to <majordomo@igc.apc.org> with only the following
in the body:
unsubscribe rags-rap
Note: You must send from the same account from which you first subscribed.
Back to top
+++++++++++++++++++++++++++++++++++++++++++++++++++++
4. Recent mining industry posts from Enviromine
a. Deep Sea Mining
Date: Mon, 12 Jan 1998 15:02:37 -0800
Sender: enviromine_technical@info-mine.com
From: "Durkin, Tom" <TOMD@denr.state.sd.us>
The December 30, 1997 issue of The New York Times has an article in
Section
F (Science Times) titled "Undersea Treasure, and Its Odd Guardians
- Alien
Ecosystems: Minerals Riches and Strange Forms of Life" by William J.
Broad,
complete with some good photos and graphics. The topic is an
interesting
one for Envirominers.
The article references the first mining claims staked over the rich
deposits
of highly concentrated minerals located along oceanic rifts that mark
diverging plate boundaries. These deep, oceanic hot springs ("black
smokers") concentrate valuable minerals as hot metal-enriched water,
heated
from underlying magma, rises and comes in contact with the cold sea
water.
During this process, metals are collected as small mineral particles
that
build up the chimneys of submarine vents.
In November, Nautilus Minerals Corporation, an Australian organization,
won
title to about 2,000 square miles of territorial waters of Papua New
Guinea
and is now exploring the area. The article says the company plans
to begin
taking preliminary hauls of 10,000 tons in the next two years and to
begin
commercial mining in the next five years if the hot springs turn out
to be
as wide and rich as preliminary studies indicate. Preliminary
ore samples
are of bonanza figures by land standards (up to 26% Zn, 15% Cu, 18.6%
Fe, 7
oz/ton Ag, about 1 oz/ton Au, etc.), with a value that could run into
the
billions.
The article points out that these submarine volcanic hot springs are
a dark
oasis that teem with blind shrimp, giant tube worms and other strange
creatures "... sometimes in profusions great enough to rival the chaos
of
the rain forests". Dr. Peter Rona, a marine geologist from Rutgers
University who pioneered exploration of volcanic hot springs and has
tracked
the rising interest in mining them, is quoted as saying "The big issues
are
environmental, ... That's a very delicate ecosystem and a genetic pool
that
we're just starting to understand in terms of the evolution of life.
Each
of these sites is precious." Studies show that the volcanic rifts
could
harbor living riches that could give miners a vested interest in preserving
the deposits. Unusual microbes that inhabit the hot zones have
body parts
that are sought after in the biotechnology revolution and are making
some
industrialists rich. The articles states that these single-celled
organisms, by weight, are worth much more than gold. Their heat-stable
enzymes are used in polymerase chain reactions, a cornerstone of genetic
engineering. The harvest of the microbes is speeding up around
the world
and may become an issue in New Guinea.
The article points out the attractiveness of these rich underwater mineral
deposits particularly to countries which are resource-deficient in
terms of
land. Earlier efforts in the 1980's to promote the mining of
such deposits
did not come to fruition due to risk, speculation, and controversy.
It will
be interesting to see how this renewed interest, in conjunction with
carefully managed extraction procedures, might take advantage of the
mineral
and biological resources in a regulated manner. It would seem
to be a good
opportunity for the minerals and biotechnology industries to work on
a
mutually beneficial project.
Those interested, may want to seek out the 12/30/97 article at a local
library. An earlier story also appeared in the 12/21/97 issue
of the NY
Times.
Regards,
Tom Durkin
SD DENR, Minerals & Mining Program
tomd@denr.state.sd.us
Back to top
-------------------------------------------------
b. Publications on Uranium Mining
Date: Mon, 5 Jan 1998 07:25:49 -0800
Sender: enviromine_technical@info-mine.com
From: "Durkin, Tom" <TOMD@denr.state.sd.us>
Dear Envirominers - For those of you interested in uranium mining and
decommissioning/reclamation in Europe, please note the announcement
below
posted by Stephanie Hurst in Dresden, Germany <hurst@SMU.SMU.sachsen.de>.
Stephanie asked me to forward this to the group.
Tom Durkin
tomd@denr.state.sd.us
----------------------
Dear Tom,
In 1996 the European Commission published a report which I just got
today.
Looking through the contents I found it may be also interesting
for you or
other oversea people, because it is a pretty compact overview over
european
uranium mining sites.
"Decommissioning of old uranium ore extraction and treatment installations"
by: J.P. Hebert et al.
Report EUR 16885 EN
European Commission
nuclear science and technology
ISBN 92-827-6823-6
It has been performed in the framework of the European Atomic Energy
Community's research programme on the decommissioning of nuclear
installations (1989-93), Section C: Studies
Sales for USA
Canada:
UNIPUB
(Subscriptions only
4611-F Assembly Drive
Uniquement abonnements)
Lanham, MD 20706-4391
Renouf Publishing Co. Ltd.
Tel. Toll Free (800)2744888
1294 Algoma Road
Fax (301)4590056
Ottawa, Ontario K1B 3W8
Tel. (613)7414333
Fax (613)7415439
IAEA has also published on the issue "Uranium mining in Europe", e.g.:
IAEA-TECDOC-865: Planning for environmental restoration of radioactively
contaminated sites in central and eastern Europe. 3 Volumes, Proceedings
of
a workshop held within the Technical Co-operation Project on Environmental
restoration in Central and Eastern europe in Budapest, hungary, 4-8
October
1993. February 1996
TECDOC's are free of charge. They can be ordered from:
International Atomic Energy Agency
Wagramerstrasse 5
P.O. Box 100
A-1400 Vienna, Austria
These three volumes contain more detailed informations about the central
and
eastern european uranium mining sites than the EUR, but no informations
about western european sites.
Best wishes for 1998!
Stephanie Hurst
Back to top
----------------------------------------------
c. RE: Reclamation Bonding (Compilation of Responses)
Date: Tue, 30 Dec 1997 14:52:32 -0800
Sender: enviromine_technical@info-mine.com
From: Rebecca Miller <ramiler@sprynet.com>
Tom,
I was recently conducting a literature search for reclamation costs
for
various mines in Canada. Among other citations, important articles
from
the 1997 4th ICARD, Vancouver proceedings were reviewed. Order of magnitude
estimates were provided from US$10,000/acre for facilities with fairly
elaborate capping and reclamation plans to US$100,000/acre for similar
facilities that would need water treatment in "perpetuity". Through
geochemical modeling, a very interesting point was demonstrated, that
by
placing a very restrictive cap on the acidic tailings the metals flux
was
reduced (ie by reducing the rate of oxidation and infiltration) to
such an
extent that water treatment was not considered to be necessary over
the
long term. I don't have the exact reference right on hand but if anyone
is
interested I would be happy to look it up.
I'm fairly certain that Canada has provisions for operators to establish
trust funds at the initiation of mining to be used for maintenance
and
water treatment for the very long term. I'm not sure who controls these
funds after the mine has been successfully reclaimed and the operator's
bond has been released.
When I was with the State of Montana, I had tried to emphasize the need
for
a similar vehicle (trust funds) to enhance reclamation bond requirements.
Does anyone from Canada have better information regarding intitiation
of
trust funds for long term minesite maintenance?
Rebecca
ramiler@sprynet.com
At 09:33 AM 12/30/97 -0800, you wrote:
>
>Thanks to all of you that responded to my request earlier this month
for
>information on reclamation bonds (original post at the bottom).
The
>responses, most of which came directly to me, are compiled below.
To
>clarify my original message, we believe reclamation bonds for large
scale
>surface mines are best calculated on a site-specific basis (due to
>differences in mine types, geology, climate, terrain, etc.) and not
on a
>rigid cost per acre basis. We will continue to calculate bonds
in this
>manner. However, a local citizens group has used cost per acre
figures
>taken from acid generating mines and said that they should apply to
non-acid
>mines, claiming that our bonding system is inadequate. The intent
of my
>original post was to get a rough idea of how the SD reclamation bonds
>compare to others in similar settings.
>
>These comments may serve as a platform for additional discussions/thoughts
>on reclamation bonding. Thanks again. Happy New Year!
>
>Tom Durkin
>SD DENR, Minerals & Mining Program
>tomd@denr.state.sd.us
> ----------
>Keith Brady <brady.keith@a1.dep.state.pa.us> (Pennsylvania Bureau
of Mining
>and Reclamation) wrote:
>
>Here's what we do in Pennsylvania:
>
> 1. We don't issue permits that we suspect
will make acid
> drainage. We either require that acid sites
be disigned to not
> produce acid or we deny the permit.
>
> 2. Bonds are a minimum of $3000 per acre
for a highwall height of
> 85 ft or less. Minimum per acre bond rates
increase as highwall
> heights increase.
>
> 3. We also require a nonrefundable reclamation
fee that goes into
> a pool to supplement bond (if needed) for mine
forfeitures. This
> fee is $100 per acre.
>
> 4. For sites that do have postmining pollutional
discharges
> (accidents do happen), if the discharge can be
passively treated
> we will consider a "bond adjustment" which takes
into
> consideration the cost of maintenance and replacement
of the
> treatment system.
>
> I hope this helps. I'd be interested in what
other states are
> doing as well and would appreciate a copy of any
type of summary
> you may produce. Thanks.
>
>
-- Keith Brady
> ----------
>Victoria Bryan <VBRYAN@wscgw.osmre.gov> (OSM) wrote:
>
>Tom, contact the following engineers at the Office of Surface Mining
>who calculate bonds for coal mining: Karen Jass at (303) 844-1456
or
>Eugene Hay at (303) 844-1455.
>
>Victoria Bryan, Bonding Specialist, OSMWRCC
> ----------
>Randy Clouse <ryc@mme.state.va.us> (Virginia) wrote:
>In response to your question about reclamation bonding, I checked
with
>our (Virginia Department of Mines, Minerals, and Energy, Division
of
>Mineral Mining) permitting section about bonding requirements.
The
>e-mail response is below. Also for a general summary of state
bonding
>requirements, you may want to check with the Interstate Mining Compact
>Commission (459-B Carlisle Drive, Herndon, Virginia 20170-4819; Phone:
>703/709-8654; Executive Director: Gregory Conrad) for a copy of their
>1997 Noncoal Mineral Resources Report. Page 30 of this document
has a
>summary of 30 states bonding fees. At the end of this report
(page 69)
>there also is a list of contacts for each state.
>
>Hope this was helpful.
>
>Randy Clouse
>Orphaned Land NPS Coordinator
> ----------
>Gary Potter (Virginia Department of Mines, Minerals, and Energy, Division
of
>Mineral Mining) wrote:
>
>>Our bond rate is $1000 per acre. The law allows a variation between
$250
>and
>>$1000 per acre but by policy and practicality we have established
the $1000
>>per acre rate as the minimum. The $200 per acre rate was established
for
>>mines of 5 acres or less. Over the years our bond forfeiture and
orphaned
>>land reclamation costs have averaged around $3400 per acre (since
1985 and
>>not adjusted for inflation). These costs have included shaft closures,
>>fencing of walls, demolition of buildings and straight regrading
and
>seeding.
>>
>>After an operator has operated satisfactorily for 5 years he is eligible
>for
>>the Minerals Reclamation Fund. A pool bond type fund. Membership
is
>mandatory
>>if eligible and once in the Fund all other bonds held on the site
are
>>released. The initial entry fee is $50 per acre disturbed and drops
to
>$12.50
>>per disturbed acre annually after the first year. The current fund
Balance
>is
>>around two million dollars.
>>
>>I recommend that Mr. Durkin review Code of Virginia Chapter 16 of
Title
>45.1
>>Sections 45.1-183 and 45.1-197.8-18 for more detail. (should
be on
>internet
>>associated with Virginia Government) It doesnt sound like Virginia
will be
>>very comparable to South Dakota. Our law is fairly old ,from 1969,
and does
>>not consider some of the more modern and more technical issues. Our
water
>>quality regulation is basically from an E&S perspective and the
only
>effluent
>>limit is a pH of 6-9. Department of Environmental quality Water division
>>enforces the clean water act and NPDES permitting.
>>
>>Finally as far as rainfall and elevation ranges. Off the top of my
head the
>>elevation of the mountain tops in southwest Virginia are 2600
to 2700 feet
>>to sea level on the east coast. I believe tha average rainfall is
40 to 47
>>inches per year. You may want to verify the rainfall and I
know there are
>>some elevations higher than 2700 feet. I dont think we have very
similar
>>operations or physiographic properties.
> ----------
>Dennis Boyles <DBOYLES@cwvgw.osmre.gov> (OSM) wrote:
>
>Tom, this is in response to your request for information about reclamation
>bonds. West Virginia has site-specific reclamation bonds
that are
>capped at $5,000 per acre (CSR 38-2-11.6). The bond amount
varies
>based on such site-specific factors as: method of mining,
fill
>construction, type of mining, permit acreage, spreads of equipment,
>overburden analysis, slope steepness, ancillary facilities, mine life,
>violation history of operator, remining, wetland development,
reclamation
>awards by operator, etc.
>
>West Virginia has an alternative bonding system. Under
this system,
>unlike a conventional bonding system, it is recognized that the
>performance bond will not cover the full cost of reclamation if it
is
>forfeited. To supplement the bond in the event of forfeiture,
West
>Virginia relies on its Special Reclamation Fund. Revenues for
the Fund
>come from the forfeited bond, civil penalties and a special reclamation
tax
>of 3 cents per ton on coal mined in the State.
>
>West Virginia does not bond for water treatment. The average
bond in
>West Virginia is $3,800 per acre. Most of these bonds
do not cover the
>costs of land reclamation, especially for underground mines and coal
>refuse disposal sites. As mentioned above, if the State has
to complete
>the reclamation or treat water after forfeiture, the money comes from
the
>Special Reclamation Fund. West Virginia currently estimates
its water
>treatment liability for 80 sites to be about $27 million. It
also has
>approximately 200 other forfeited sites that are not fully reclaimed.
>
>If you need additional information about West Virginia's bonding program,
>contact Sandy Humphreys, WVDEP, (304) 759-0510.
>
>Dennis Boyles, OSM, Charleston Field Office.
> ----------
>Karen Jass <KJASS@wscgw.osmre.gov> (OSM) wrote:
>
>Well...... you probably won't like my answer particularly. However,
I think
>you should understand the rational for my opinion in having dealt
with
>this. I have done coal mine bond calculations and evaluations
for longer
>than I care to admit. However, the one consistency I can vouch
for in all
>these (thoughout the west - KS, MO, WY, WA, MT, AZ, NM) is that there
>are TOO many variables - even for mines within the state or region.
...
>
>Granted doing a cost/acre basis is easiest and if conditions are
>consistently similiar, may warrant basing a bond on a specific figure.
>However, perhaps being of a skeptical nature, I would rather do a
>thorough line-item evaluation before I would consider doing a cost
per
>acre. Then adding on specific costs - inflation, monitoring,
mitigation,
>etc.
>
>What happens if there is an anomoly or something comes up later -
such
>as metals in the OB or iron in a rider clay seam, or major faulting
where
>the mine follows the seam? How do the long-term and short-term
>monitoring, backfilling or infinite treatment or mitigation costs
get
>calculated in or added on when doing a cost/acre estimate.
Food for
>thought. KJass
> ----------
>Gene Hay <GHAY@wscgw.osmre.gov> wrote:
>
>I work for the U.S. Dept of Interior's Office of Surface Mining.
We require
>all coal mines to post a reclaation bond before mining begins.
Because
>of that we developed a bond cost estimating hand book and a small
>computr program to assist in the calculation.
>
>Because the coal mines vary so much from mine to mine we have found
>that estimating bond costs on a per acre basis is not very acurate.
Our
>hand book is based on basic earth moving estimation factors the same
>as if a bid was being prepared for any other earthwork project.
>
>If you would like additional information or a free copy of out handbook
>please contact me at 303-844-1455.
> ----------
>Gene Hay (OSM) further wrote:
>Tom, I went through our bonds calculated by this office and came up
>with the following information. These are all surface coal mines.
>
>McKinley Mine, Gallup, NM final pit length 3,300 ft; pit depth 125
ft; Acres
>dist. 4,400; Bond amount $79,519,000.
>
>Navajo Mine, Farmington, NM- Final pit length 49,700 ft; pit depth
125 ft;
>Acres disturbed 3,500; bond amount $90,123,000. This mine has
almost
>totally backfill the final pit to get it to drain.
>
>Black Mesa/Keyenta, Kayenta, AZ, pit length 103,700 ft; pit depth
100 to
>150 ft; Acres dist. 10, 300; bond amount $114,398,000.
>
>John Henry, Black Diamond, WA, pit length 1,000 ft; pit depth 250
ft;
>acres disturbed 300; bond amount $5,500,000.
>
>Centralia Mine, Centralia, WA, pit length ??, acres dist. 10,000,
bond
>amount $101,102,000.
>
>The method used to calculate these bonds takes into consideration
the
>difficulty of reclamation, indirect costs for a third party contractor
to
>complete thee work and is based on standard earth moving methods of
>cost estimating. Each bond is calculated based on site specific
>conditions. OSM has a specific set of regulations which the
reclaimed
>area must meet before the bond can be release.
> ----------
>EPA's Orville Kiehn <KIEHN.ORVILLE@epamail.epa.gov> (via Ken Wangerud
><WANGERUD.KEN@epamail.epa.gov>) wrote:
>
> A State of Colorado reclamation bond for
the Cripple Creek & Victor
> Gold Mining Company-Cresson Project is described
in a 33 page document
> "Summary of Amendment 6 to Permit M-80-244".
Background details may be
> obtained from Mr. Bruce Humpheries at the
State of Colorado Division
> of Minerals and Geology 303-866-3567. The
site is advised to be
> "situated in low acid-generating terrains".
The amount of financial
> warranty "is calculated to be $18,270,246
(plus $210,000 for other
> requirements at previously disturbed areas
for a total of
> $18,480,246). This is, of course, for third
party reclamation and
> includes the surcharge of OMLR management
of a reclamation contractor.
> This surety amount has been developed in
detail for both total
> reclamation and for phased incremental additions
of financial surety.
> The financial warranty for the Project through
the first phase of the
> valley heap leach is similarly calculated
to be $14,082,839 (plus
> $210,000 as above) for a total of $14,293,839)".
>
> Details on two bonds for the Pegasus Zortman-Landusky
State of Montana
> reclamation and the court-ordered in-perpetuity
water management-water
> treatment sites can be obtained from the
Montana Department of
> Environmental Quality in Helena, MT. A suggested
contact is DEQ's
> Peter Werner, Engineer,(406-444-2468) who
with Mark Spencer, Mining
> Engineer, worked with EPA, Region 8, and
the mining company to design,
> calculate, run iterations and finalize the
water management-water
> treatment bond portion of the total reclamation
and water
> management-water treatment bond. Two water
treatment facilities, one
> for each (adjacent) mine complex, were evaluated.
The approximate
> magnitudes of the two bonds are +/- $70MM
for reclamation and +/- $34
> MM for in-perpetuity water management-water
treatment.
>
>Via the MT DEQ we were advised of existence of a document of mutual
> interest, "Review of Hard Rock Mining Reclamation
Bond Requirements"
> dated December 3, 1997 and is a legislative
request # 98L-36.
> Available either from DEQ or the Legislative
Audit Division, nine
> pages.
>
> Orville Kiehn
> ----------
>Kathy Viskocil <LThomp8985@aol.com> (Pintail Systems, Inc.) wrote:
>
>Pintail Systems, Inc is a small bioremediation firm in Colorado specializing
>in remediation of cyanide heap leach pads and associated ponds.
Costs are
>always site specific. We have found that our bioremediation
technology
>generally costs 25-30 percent of the total cost of conventional treatment
to
>remove cyanide. We have also observed biomineralization during
our
>detoxification which reduces soluble-metals loads to local ground
and
>surface
>water.
>
>Kathy Viskocil
>Pintail Systems, Inc.
>bugladyx@aol.com
> ----------
>My original post ...
>
>>From: enviromine_technical
>>To: Multiple recipients of list
>>Subject: Reclamation Bonding
>>Date: Thursday, December 04, 1997 7:19PM
>>
>>
>>We are comparing reclamation bond requirements for surface mines
in our
>>state to requirements elsewhere. For most mines (i.e., mines
that are not
>>acid generators), it seems appropriate to compare reclamation bonds
on a
>>"monetary amount per acre" basis. At non-acid generating surface
mines in
>>South Dakota, reclamation bonds average between about $2,700 and
$3,500 per
>
>>acre. These mines are in a cool temperate climatic zone at
elevations
>>between 5,500 - 6,000 feet (1,675 - 1,830 meters) above sea level.
They
>>receive about 25 - 28 inches (63 - 71 cm) of precipitation per year.
Can
>>anyone supply similar comparisons elsewhere?
>>
>>At the two acid-generating mines in our state, the figure is naturally
>>higher. At acid-generating Mine A, the reclamation bond is
$10,880,000 for
>
>>206 acres (83 hectares) of disturbed land. At acid generating
Mine B, the
>>reclamation bond is $10,700,000 for 320 acres (130 hectares) of disturbed
>>land. We believe that reporting reclamation bonds at acid generating
mines
>
>>on a "per acre" basis does not reflect as true a picture when comparing
>>reclamation costs among different mines. This is because of
differing
>costs
>>of water treatment plants, capping, etc. that are not necessarily
based on
>a
>>per acre cost. For this reason, please indicate whether the
mine is acid
>>generating or non-acid generating. Specific information on
water treatment
>
>>and/or capping costs would be helpful. Referring to the mines
as Mine A,
>B,
>>C, etc. is preferred. We would like to know the state or country
name.
>>
>>Lastly, for cyanide heap leach operations, information on costs to
detoxify
>
>>leach pads and process ponds would be appreciated.
>>
>>Please note that this request is specifically geared toward "reclamation"
>>bonds, but any information on environmental or post-closure bonds
is
>>welcome.
>>
>>Thanks in advance for any assistance.
>>
>>Sincerely,
>>
>>Tom Durkin
>>South Dakota DENR
>>Minerals & Mining Program
>>tomd@denr.state.sd.us
>
Rebecca A. Miller
Principal
Minekeepers
933 East Keim Drive
Phoenix, Arizona 85014
voice (602) 264-1663
fax (602) 264-1663
email ramiler@sprynet.com
Back to top
Disclaimer
EarthWINS Daily is a project of EarthWINS.
** NOTICE: In accordance with Title 17 U.S.C. Section 107, material
in this issue of EarthWINS Daily is distributed without profit to those
who have expressed a prior interest in receiving the included information
for research and educational purposes. **
The articles in EarthWINS Daily are PHOTOCOPIES for personal informational
purposes--please seek reprint permission directly from the source listed.
You are encouraged to utilize this information for personal campaign use;
including writing letters, organizing campaigns and forwarding. All efforts
are made to provide accurate, timely pieces; though ultimate responsibility
for verifying all information rests with the reader.
If you distribute information contained in EarthWINS Daily, please:
(1) Copy the information in its exact form,
(2) Cite the author, publisher, and date of the information.
(3) Include this subscription information for EarthWINS Daily -
To subscribe to EarthWINS Daily send an email to
EarthWINS-Daily-subscribe@yahoogroups.com
Thank you!
Back to top |