DRC-2001-001061 - 0901a068809be157

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INTSnNATToNAL
UneNruvr (use)
ConponerroN
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Indefendence Plaza, Suite 950 . 1050 Seventeenth Street. Denver, CO 80265 . 303 628 7798 (main) o 303 38g al25 (fax)
Jwe22,2007
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VIA EXPRESS COURIER
Mr. William J. Sinclair
Director, Division of Radiation Control
Utah Department of Environmental Quality
P.O. Box 144850
168 North 1950 West
Salt Lake City, UT 84tt4-4850
Reference:- March 20,2001 UDEQ
Information in response
Information Report
- Ground Water Discharge
- Follow up to May ll,
Sinclair
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letter and Request for Additional Site Hydrogeology
to IUSA September 8, 2000 Revised Groundwater
Permit Application for White Mesa Mill
2001 letter from David C. Frydenlund to Williarn J
t$tur
Dear Mr.
As a follow up to International Uranium (USA) Corporation's ("IUSA's") letter of May 11,
2001, we are submitting herewith the additional information promised in the May l ltl' letter.
This information is provided in response to the comments from the Utah Department of
Environmental Quality ("UDEQ") Division of Radiation Control ("DRC") transmitted by letter
dated March 20,2001, in response to IUSA's scheduled submittal of September 8, 2000, and the
Aprll25,200l meeting to discuss DRC's comments.
Included with the May I l tl' submittal was a revised schedule for completing the requirements for
the Groundwater Discharge Permit ("GWDP"). Absent comments from DRC, IUSA is
continuing to work from this schedule for the remaining submittals, and hopefully the ultimate
I issuance of the Permit.
For ease of reference, the request language contained in your letter of March 20 (the Request for
I Information, or "RFI") is repeated in the same order as used in the letter, indicated in italicsI L^r^--.UtrIUW.
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Mr. William J. Sinclair
June22,200l
Page2 of20
SMW-I rhr
Wnll Crnttrurtion Diogrr*t ond Guolrgi, Loo, . 2, Itr* 2.C ord p. 4, Itu* 3 _severalwells,piezometers,and/orboringremain,itl,o,@,amsand
geologic logs, as already provided, ,eu disrursion below
_ we acknowledge that seven (7),not six (6), wells and piezometers are at issue here, includin[ three (3) wetts,MW-20 thru MW-22, andfour (4) piezometers; MW9-r, MW9-2, MWI0_r, andMWl0-2. we appreciate the nn* rirrry coordinates providedfor these seven (7)installations. However, the september B, 2000 ruc Revised cin yaitea b protvidewell completion diagrams for these seven (7) welrs and piezimeters. prl"ose
provide the required well compretion diagrami, and geologic logs for these seven(7) installations. In the event that this information his been rostl please provi,de a
:!:!:':,*: completion of video and giophvsicar rogging to coilect the requiredtnJormatron.
RESPONSE
As detailed in IUSA's May l ltl'letter, a search was conducted of IUSA,s Denverand Blanding office and central files, as well as Umetco Minerals, files in GrandJunction, with the conclusion that this search located all existing information andadditional searches would be fruitless.
During this search, IUSA located working files and field notes from drilling ofwells MW-20, -2r, and-22, as well as similar information for the u.rgt" t-ot.,referenced in question 1.c., below. In addition, IUSA located a Table ia fug",
.from a report by D'Appolonia Consulting Engineers, which gives data for shallowborings 9-1, 9-2, I 0- 1 , and 1 0-2. Enclosed as Attachment a i, u ,u--ury ."porr,prepared by Stewart J. smith, project Hydrogeologist, HydroGeoChem,'Ir".("HGC"), reviewing the data from the well logs, ireld notes and completiondiagrams found in the files for Mw 20 -22, andtli angle holes. Also enclosed asAttachment B are the Tabre and pages from the D,Appilo,ia report.
_ from thedescription provided, it is cleor thoioftq r^tolloGiiin three G) wplc 1,ato,,hese three (3) wells were
t?Tr":-"::1,:1:t,hl,!.u^already been providedfor these rhree (3) ieils (gtStOo
y::,* ? ?,!!o .!,* ::?,, l!,,, e pr ov idi rhe
"fo
t t ow i"; W ;;;i*i, i ii ir",alacking for the,ce three (3) wells:
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Mr. William J.
Jtne 22,2001
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Geologic logs - that locate the depth to the
contacl,
Well completion diagrams, and
Dates of well installation.
upper Brushy Basin Shate
(1)
(2)
(3)
RESPONSE
This is the same request, essentially, as l.A. above. It was earrier agreed that a
and the scopel"jp,"j:" to items I A.u.".d.l.B. may be combined as one response,of both responses would be as defined above under ivr vvL, rvrp\,r.Er wuurq De as oerlned above under item 1.A. Enclosed asAttachrnent A are the well logs, field notes and completion diagrams found in thefiles for MW-20, -21, and, -22.
iagrams found in the
_ -from review ofthe septentber 8, 2000 Revised GrR, i;;tri rniiiTl guit"ihntrar boringswere also installed near the tailings cells in conjuiction' with wells MW-20 thrul!(_-22; as a part of studies compritedfor rhe Nic and EpA (g/s/00 illc Revised
!!' rn l-s) Apparently rhesi boriigs were nctmed GH-\, GH-2A, GH_3 andGH-4. we acknowredge receipt of fietd and raborarory')ur*uablity data frontthese four (4) borings in the Seple"mber 8, 2000 nnriru'a GIR (Attachment 10,Tables C-5 and C-6).. Ho_wever, this report also explained how iher rnfor*orio,was collected from these borings, including
Wireline geophysical logs,
lYireline video logs
Geologic logs
Please provide reliable survey coordinates and all geophysical, video andgeologic logs madefor thesefour (4) borings.
RESPONSE
searches were performed as described under l.A. above. Geologic logs, fieldnotes and test data have been located, as well as a video tog that relate to at leasttwo of the borings' A copy of the video log will be sent ,id., separate cover toMr' Loren Morton for archiving and review-by personnel fro* tir. DRC. A copyof the video will also be on file at the white Mesa Mill offrce. The additionalinformation located for. these borings is included in Attachment A to thissubmittar, and described in the urr*., to question A. 1., above.
Because the borings were plugged and abandoned soon after drilling, the locationswere not surveyed, and a visual inspection of the area failed to locate evidence ofthe boring locations. DRC has previously indicated that it is acceptable to
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Mr. William J. Sinclair
June22,200l
Page 4 of20
these
plan
in l.
thoseapproximate locations to place these on the map, urd' to estimate x, y
coordinates.and z
approximate locations, if surveys are impractical. IUSA has approximatedcoordinates on the map attached in response to item 4., below. A workincluded in the 1994 rJmetco Report, rocated during the fiie search referenceA. above also indicates the planned locations for tiese points. IUSA used
_ apparently IUC has beenunsuccessful in their attempts to provide informtarion onlor*u, monitoring wellsnow abandoned. However, additional infoimation is ,eqiired, as follows;
(1) Well MW-\3 - after IUC's unsuccessful attempt to locate this information(9/8/00 IUC Revised GIR, pp. r 2 a io1, DRC-stafffound rhe required weilMW-L3 data in a March, r9g3 Energy Fuers wuitio, (EFN) cinsrrucrionReport for Ceil 3 (Appendix D, ie il/t/g2 D,Apporonia ConsurtingEngineers letter report)- Please provide reliable survey coordinates forthis well.
Searches were performed as described under A.1. above. IUSA located data froma D'Appolonia report of ll/r/1992, andthe phase 2 Tailings Management SystemDesign which included a map indicating where this well wluld be after Cell 4 wasconstructed. In addition IUSA also located the November I , lgg2 D,AppoloniaConsulting Engineers.installation report for Monitor Wells MW-11, MW-12 andMW-13, as well as installation notes for MW 13 and 14. This report andinformation is enclosed as Attachments c and D. The prrase Two TailingsManagement System_Design was previously sent to DRC. Mw-r3 was initiailylocated so it would be on the crest area of the Cell 4 Dike at the time it wasconstructed. A re-design of Cell 4 caused the well to be within the interior of Cell44, therefore' it was plugged and abandoned as apartof the Cell44 construction.Details_of the plugging of this weil were described in Section 5.5, page q, araAppendix G, of the cell 4,A construction Report, August z0oo. This r:eport haspreviously been sent to DRC. The location oivw-t5 *u, approximated on thedrawing attached in response to item 4.. below.
RESPONSE
(2)ells -1. MW MA?1, MW7-2, MW,'8-2 - please,:!?,: *rat e{furf w?re.comlleted ro locate *u ,rq"irua.reil compleriondiagrams and geologic rogs for these six (6) formir weils. In the eventthat new efforts find this information, pteiaie provide it with reliabresurvey coordinates for each well at your earliest ionvenience.
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Mr. William J. Sinclair
Iune22,200l
Page 5 of20
RESPONSE
searches were performed as described under 1.A. above, and IUSA was able tolocate installation data for these shallow borings. This information is enclosed asAttachment B, in response to a portion of queition l.A above. These wells wereoriginally installed within the area now occupied by cell 3. The wells wereplugged and abandoned as a part of the cell 3 construction. The pluggirf lsdescribed in the construction Report, Second phase, Tailings Munif"rri.rrtSystem, March 1983, section 3.5, page 3-3.
Survey coordinates for the wells were approximated from the locations shown onthe Second Phase De;ign,. ceil i, Tailings Management System, May l9g r, Sheet2' The approxirnate location of the wells are indicated on the drawing attached inresponse to item 4., below.
.C.61- we acknowledgey,":: ,:rY,li.ry .tlproduce a weil compretion -d*g** ,rd georogic rog .for weilMW-3' This information is essential for determination ofiquifir thiikness andelevation of the Brushy Basin shale ippn, conract. At this time, it appears rhatthere are only two options to resolve tiis problem.
(1) _ b locate the screened intervals inthe well, and depth/elevation o.f the Erushy Basin shale upper contact.
Install a coryfirmation Boring - in the event that the geophysical logs areunsuccessful -in rocating the Brushy Basin shari ippr, ,onrirr, ctconfirmation boring may need to be installed near well MW-3 to allow anadequate geologic log to be assembled.
Plelse prouide a plan and schedule for these resolution activities for wett MW-3within 3)-days of receipt of this letter
RESPONSE
Information searches-were performed as described under l.A. above. Thesesearches failed to yield a more detailed geologic log for Mw_3. constructiondetails for MW-l , -2, -3, -4 and, -5 were locateJduririg the data search, and havebeen included as Attachment E.
IUSA will continue to discuss with DRC the feasibility and need for defining theBrushy Basin contact at this rocation. IUSA notes ihat the top of the BrushyBasin throughout our entire site, which is in excess of 5,000 acres, cannot bequantified in complete precision, because there would always be too few data
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Mr. William J. Sinclair
June 22,2007
Page 6 of 20
1.
points. The site conceptual model, however, which has been published andavailable for public comment since the Environmental Assessment was firstpublished in 1980,. supports the general conclusion that the Brushy Basin ispresent as a confining unit beneath the site. This is evidenced in a number ofyuyr, including: pressure head observed in wells drilled to tt",.rae.tying
EntradaA'Javajo sandstones; observed contact in canyons adjacent to the site;observed contact seepage at the contacts; historicai descriptions of regionallithology, by independent geologists; and observed presence of the contact inwells drilled throughout the site.
The Environmental Report (Dames & Moore, lgTg) describes, i1Appendix H, theconstruction features for groundwater monitoring wells at the project^site. plaie 9,"Sketch of Typical Ground Water Monitoring -Well (for water table of perchedground water)" illustrates drilling of a well in such a manner that the screenedinterval would enable monitoring a saturated zone that could vary somewhat,based upon the "highest expected water level,, and the ,.lowest expected waterlevel"' The text indicates that the monitor wells should be constructed of 4- to 6-inch diameter PVC plastic casing (as shown on prate 9) to a depth below the"lowest expected water level.,,
Based on all of the well logs for monitoring wells installed at the Mill, it isevident that this approach was consistently uppti"a. That is, the monitoring wellswere completed in such a manner that they would be capable of monltori,ggroundwater at the lowest expected water level - which would mean that it wouldbe necessary to drill the wells to the confining unit upon which the groundwater isperched beneath the Milr, the Brushy Basin. In the case of MW-3", attrrougtrin.well log does not show the location of the contact with the Brushy Basin, it isreasonable to expect that the depth of MW-3 is reflectiv. or trr.'upf.o;i;;.
depth to the Brushy Basin at this point, for the following reasons:
IUSA has seen no information to suggest that any monitoring wellsat lhe Mill, except for those specifically definla to be ,,shalrow
wells", were drilled differently from the method set forth in Dames& Moore 1978. Hence, Mw-3 would have been drilled is such a
pury.". as to be capable of monitoring the "lowest expected waterlevel", which would have required it,s being "o*pl"t"d ut o.slightly below the top of Brushy Basin.
The depth of MW-3, 96 ft. below it's land surface datum, is only 5ft. more than the depth to the Brushy Basin at MW-20 and Mw-r7(91 ft.), and 6 ft more than the aepitr to the Brushy Basi, at MW-
21 (90 ft.) (These three wells nearest to MW-3 present a reasonable
representation of the top of the Brushy Basin). placing the depth
data for these wells relative to each reipective land suriace datum,
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Mr. William J. Sinclair
June 22,2001
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Mw-3 fits properly in the contour, as shown on the contour Map
of Top of Brushy Basin. This map is also referenced in a later
Response (Question 6), and is enclosed as Attachment N.
Absent our ability to convince DRC that this additional information adds little to
the overall understanding of the site, IUSA will first consider running a natural
gamma log of the well. Natural gamma has been successfully used aithe site to
distinguish the Brushy Basin shale from the overlying Burro Canyon sandstone,
and can be conducted in a cased boring. If the natural gamma log is not
successful in distinguishing the contact, then IUSA will consider drilling an
exploratory hole just down gradient of MW 3 to confirm the lithology aI the
location, if DRC and IUSA believe this is essential to protecting grounl*ater at
the site
and Sc Re -we
acknowledge that no additional well construction information is avaitable for MW-4.
W,4 lnew
Close review of the available IUC information indicates that the base oy tlre well,s
screened interval is abour I3 feet abovi the Brushy Basin Shale upper contac"t (7/94 Titan
Report, Appendix A, well completion diagram). After consideration that chloroform has
been detected in this well, it is clear that the potential exists for dense non-aqueous liquid(DNAPL) contaminants to go undetected with this welt configuration. As a iesult, *i ,uu
no other option but to ask IIJC to complete one of thefollowing activities;
A. Re-per.forate Well MW-4 - by cutting new perforations in the well casing, below
the existing screen interval, to allow well access to the aquifer interval in
question, or
Installation o-f a second well - in the immediate vicinity of well MW-4
a screened interval that is in direct contact with or is screened across
Basin Shale upper contact.
to provide
the Brushy
Please provide a plan and schedule for one of these activities for well MW-4 within 30-
days of receipt of this letter.
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Mr. William J.
June 22,2001
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The
RESPONSE
With regard to this technical question, prior to meeting with DRC on April 25, IUSAasked our independent hydrology consultant to review th"e data for MW-4. rrcc reportedthat the well completion diagram is in eror, and that the geophysical log shows thecorrect contact of the Brushy Basin. The g-eophysical log for Mw-ri providel in TITAN,1994, shows the Bumo Canyon/Brushy Basin contact" at 108 t Uts. This depth isconsistent with the lithologic logs of nearby temporary perched monitoring wells TW4-1,Tw4-2,Tw4-7, and TW4-8, in which the iame contatt'is at approximately 103 ft, 105 ft,98 ft, and t 05 ft bls, respectively. This would place the base of the screened interval ofMw-4, which extends to 1r2 ft bls, approximateiy 4 feet below the contact.
The 125 foot depth that- has been reported for the Brushy Basin at MW-4 is apparentlybased on the well completion diagram provided in TITAi.l, 1994, which notes a contact
regard to any chloroform DNAPL that may be present are:
be expected to enter the well
Basin contact,
l"j:::,^:"llrl"-i:,,iid-*clay;ton"" i1 t7s ft.bls. However, no additional lithologicinformation is provided to indicate whether the ,,sandstone,, jis continuous from thesurface to 125 ft bls, or whether the "sandstone" is a small lens or thin layer encounteredwithin the Brushy Basin. Such lens are known to be present within the Brushy Basinformation. The formation names are also not designated on the diagram.
with regard to the -geophysical log of Mw-4, there is a clear response in the naturalgamma at 108 ft bls that is consistent with a shale or claystone at l0g ft bls. Thisresponse is also consistent with the natural gamma response at the Brushy Basin contactas depicted in other geophysical logs at thi site. Because the geophysical log clearlydepicts the Brushy Basin contact at 108 ft bls in MW-4 and because this is consistentwith lithologic logs of nearby temporary wells, the 108 foot depth is considered reliable.
Any DNAPL present near MW-4 would
casing which is screened across the Brushv
Because any DNAPL present at the Brushy Basin contact near MW-4would be expected to enter the well casing, ihere is no need to replace orre-perforate MW-4, and
Based on the results of multi-depth sampling, which indicated thatchloroform concentrations do not lncrease-with depth in MW-4, andmaximum chloroform concentrations which u.. -or. than 3 orders ofmagnitude lower than the solubility of chloroform, no DNAPL existswithin or near MW-4.
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Mr. William J. Sinclair
}une 22,2001
Page 9 of20
Because of the recent letter (June
chloroform investigation, additional
and response to that letter.
(c)
RESPONSE
with respect to the
held for discussions
Addit
items from the February 7,
ic ln Mtion [p. 4, Item 3 and p. ] l, Item I l.Al - several
2000 DRC RFI remain unresolved, including;
requested
Missing IUC Reports - several existing consultants reports have yet to be
provided to the DRC. Please provide the.foilowing reports:
(1)Reports Available to Titan Environmental - as listed in Table 2.2 and the
References section of the July, r 994 Titan Environmental Report,
including:
8, 2001) from DRC to IUSA
comments on this issue will be
February, 1981 D'Appolonia consulting Engineers, "Assessment
o.f the Water Supply System, White Mesa project, Blanding, (Jtah,'
July, 1991 Hydro-Engineering, "Ground-Water Hydroligt at the
I4rhite Mesa Tailings Facility"
June, 1994 Peel Environmental serttices, "Groundwater study,
White Mesa Facility"
Searches were performed as described under l.A. above. IUSA located, 1994
Urnetco, 1993 Peel, and l99l HydroEngineering Reports. These reports were
sent to DRC as attachments to the May I 1,2001 letter. IUSA has not iocated the
1981 D'Appolonia report, and regrets it may not be possible to locate thatparticular report. However, IUSA did locate three additional reports prepared byD'Appolonia, dated September 9, September 29, and Novemu"i:0, t^qsi. These
reports are enclosed as Attachments F, G and H to this submittal
Reoort(s\ Preoared ,for NRC / EpA - including reports to document
drilling and hydrogeologic investigations related io ,itrtirg welts MW-20
thru 22 and geotechnical borings GH-l thru GH-4 (see disiussion above).
RESPONSE
Searches were performed as described under 1.A. above. During the search of theMill records, IUSA located some working files, field notes and data.
These additional wells and borings were installed as part of the investigation
performed by Umetco during the time that the Mill was being considereJ as a
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Mr. William J. Sinclair
lune 22,2001
Page 10 of20
candidate site for disposal of the Monticello tailings. As we discussed, after the
decision was made by DOE not to relocate the Monticello tailings to the Mill, thewott on these investigations abruptly ceased. The information located on these
wells and borings is attached to this submittal as Attachment A in response to
question 1.C above.
(3) An.v other - report related to groundwater hydrology or geology of the
site.
RESPONSE
Searches were performed as described under 1.A. above. As stated in Response
3.A.(1), above, IUSA located three additional reports prepared by D,Appolonia,
dated September 9, September 28, and November 30, l9gl. These ,.po.t, u."
attached as Attachment F, G and H to this submittal.
O _ please provide reliable
survey coordinates.for these two borings ctt the facitity.
RESPONSE
IUSA has approximated the location of these borings on the drawing attached i1
response to item 4., below. The locations were obtained from information
contained in the original documentation for the Dames & Moore borings. DRC
agreed during the April 25tl'meeting that it is acceptable to approximate Lcations.
Test Well l7 (East o-f Mill Sitet to 4. Item 3.B.ll - we recognize that IUC believes
this former test well has been plugged and abandoned. Hiwever, please provide
thefollowing informationfor this well; date of wetl installation, geologic log, wellcompletion diagram, reliable survey coordinates, and i pliggin[ and
abandonment report.
RESPONSE
Searches were performed as described under 1.A. above. IUSA located, during
the search of the Mill records, logs and completion descriptions for the deepwells. This information has been organized in the form of a Deep Well Summary
Memorandum describing the test well and other deep wells, which includes a drill
date (February 23, 1977) for the test well. This summary information is included
as Appendix I to this submittal. A visual inspection of the location of the TestWell confirrns that the well has not been plugged. The actual location of the Test
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Mr. William J. Sinclair
June 22,2001
Page I I of20
Well was not surveyed during the August 2000 LANDesign field work, but the
location has been approximated on the map provided in response to item 4.,
below.
Five Dryt wells and Piezometers [p. 5, Item 3.8.31 - apparently IUC was
un.successful in its attempts to locate the requested informationfor dry utells MW-
16, MW9-1, MW9-2, MWL0-1, and MWl0-2. Hou,ever, additional information is
required, as.ftillows:
(t)well MW-[6 - DRC staff found a well completion diagram and geologic
log .for this well in the February, 1993 peel Environmental serviies
Report (Appendix A).
Wells MW-16, MW9-1, MW9-2, MWt0-1, and MWt0-2 - please explain
what efforts were completed to locate the required well compietion
diagrams and geologic logs for these.four (4) dry wells. In the evint that
nevt efforts find this information, please provide it at your earliest
convenience.
RESPONSE
Searches were performed as described under 1.A. above. IUSA located, during
the search of the Mill records, logs for the wells and completion descriptions.
IUSA has also located packer tests and well logs for MW-16, -17, -lg and -19.This information is enclosed as Attachment J. Information on nested wells MW-9
and MW-10 has been included as Attachment B in response to question LA.
above.
Two Nested Anqle Borings Near Cell 4A [p. 5, Item 3.8.4J - please explain what
efforts were made by IUC to locate the requested information for thise two (2)
borings. Should new efforts locate this data, please submit it at your earliest
convenience.
RESPONSE
Please see response to question 1.C. and 3.A.(2) above.
Land mation Item 4. n.9. and
acknowledge submittal of two (2) IUC maps of thefacility,I
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Item l3l - we
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Mr. William J. Sinclair
Iune 22,2001
Page 12 of20
August 28, 2000 LANDESIGN sire conrrol Map - prepared by LANDESIGN
Engineers, Surveyors and Planners of Grand Junction, Colorado, Sheet I of l,
Rev. I (submitted as a part of the september 8, 2000 IUC Revised GIR). This
drawing included a data table of survey coordinates, and a simple relative
position plot for many of the requested facilities at the white Mesa site.
IUC Toooeraohic Mao - provided to the DRC by Mr. Ron Hochstein of I\JC on
June 13, 2000. This detailed topographic map, prepared by an unknown party,
provides location details for many of the site facilities, including but not limited
to: footprint of tailings ponds, tailings pond berms, site roads, mill site, mill site
product and process storage tanks, ore storage pad, wildlife ponds, topsoil
srorage pads, mill process buildings, administration building, current truck scale
building, and ntill site process wastewater pond ("Roberts Pond"). This ntap utas
reportedly prepared at I :3,600 scale (1" : 300 ft), as derived fi.om
photogrammetry data collectedfor the site in February, 1999.
Review of these two (2) IUC maps shows that much of the information requested in the
February 7, 2000 DRC RFI has been provided on one map or the other, with the
exception of thefollowing items and concerns;
Combinati and Tonosr 9, ltem 9l - for ease of
reference and to .facilitate preparation of future DRC hydrogeologic cross-
sections and other maps it is essential for all the required elements to be
presented on a single map. For this reason, DRC staff request that IUC combine
the above site control and topographic maps into a single map. Please ensure
that the accessible discharge related facilities are shown on the combined map,
including, but not limitedto [p.5, Item 4.A.] thru 5, and 4.8.2J. tailings pordt,
tailings pond berms, existing groundwater monitoring wells, .former wells and
piezometers, water supply wells, exploratory borings, dry wells and piezometers,
and the chloroform investigation temporary v,ells.
RESPONSE
IUSA has enclosed, as Attachment K, a copy of a topographic map titled "International
Uranium (USA) Corporation, White Mesa Mill, Topographic Map - 1999 Contour Base",
indicating the location of all topographic features on the site, as well as monitor wells,
former wells and borings, water supply wells and chloroform investigation wells.
As discussed with DRC, the existing grid system and vertical datum of the most recent
topographic maps (1999) do not line up exactly with the x, y and z coordinate system
established during the August 2000 survey completed by LANDesign, Inc. IUSA has
evaluated the options for resolving this conflict and has decided to proceed with
generation of new topographic maps based on the most recent survey, with an adjustment
back to the original elevation datum. Use of the original elevation datum will eliminate
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Mr. William J.
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Page l3 of20
potential conflict with years of historical data and reports. Therefore, elevation data
presented to DRC since August of 2000 will be adjusted by a constant factor to bring the
information back into conformance with the historical data and reports. IUSA has
enclosed, as Attachment L, a revised listing of the features surveyed ty LANDesign in
August of 2000, using the new elevation datum. Additional features requested Uy bnC
have also been added to the listing of x, y and z coordinates. IUSA will make the
necessary adjustmenls in data and spreadsheets that IUSA will maintain for the Mill,
which will save DRC the burden of changing values. This information will be submitted
under separate cover.
Until new aerial photography can be obtained and topographic maps generated, IUSA is
submitting the attached drawing based on DRC's statements that itsintirest is in knowing
where wells are located relative to features of the site, such as ponds or stockpiles. IUSAwill continue in its efforts to resolve survey issues, and wili, upon resoluiion of such
issues, then prepare updated cross sections and other maps, including perched zone water
elevation contour maps and water surface elevation
"o.rior. maps. These contour mapswill be periodically updated by IUSA and provided to DRC.
Nearht stockwatering wells [o.6, Item 4.A.61 - nearby stockwatering wells
conslitute potential points of exposure for the facility. Please providi survey
coordinates, including ground surface elevations for both the Jet Pr*p and Jones
stockwatering u,ells located near the facility.
RESPONSE
DRC agreed that it is acceptable to approximate locations. The map enclosed as
Attachment K indicates the approximate location of the Jones Well, and the coordinates
are listed on Attachment L. The Jet Pump Well is located off the northern limits of the
attached map and is not shown. The coordinates of the Jet Pump Well are indicated on
Attachment L.
Nearby Contact Seeps and Sprines to. 13, Item l3f - nearby seeps and springs at
the edge of white Mesa also form potential points of exposuri for thi yaitity.
Please provide survey coordinates and ground surfaie elivqtions .for all contact
seeps and springs near the facility.
RESPONSE
In the September 8, 2000 GIRRP submittal to DRC, IUSA submitted aerial photos,
Attachment i0, showing vegetative patterns indicative of seepage along the nearesi
canyon margins, which, based on our meeting of April 7, 2000, we understood to besufficient for the present purposes. As reported in the GIRRP, IUSA could not, however,
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Mr. William J.
|une22,2007
Page l4 of20
provide detailed land survey locations for all contact seeps and springs, because such
features vary depending on a number of hydrogeologic conditions. IUSA submitted acurrent map showing water surface elevations for the perched groundwater zone. Thewater surface elevations in the perched groundwate, ion" generally decrease near the
margins of the canyons, where the perched groundwater zone thins and is discharged.
Plate 2.6-10, in the Envi
(Dames &
relevant portion of which are contained in Attachment 1
transmittal to UDEQ,
er
among locations of groundwater sampling stations in the
1977-78. The locations of these stations were described
follows:
Moore, January 30, 1978), the
of IUSA's September 15, 2000
lists four springs which were
proposed project vicinity during
in the Environmental Report as
Station No.
GIR
G3R
G5R
Location
Spring in corral creek, 500 feet upstream of earth dam and surface
water station S3R, upgradient of project site
Spring near Ruin Spring Point, drains to Cottonwood Creek
downgradient of project site
Spring near base of Dakota sandstone cliffs about 500 ft east ofjeep trail, drains into cottonwood creek, downgradient of project
site
Spring about 1,500 ft east of westwater creek in canyon, to west
and possibly downgradient of project site
As it is evident that the objective of these early siting studies was to locate any potential
water sampling locations in or around the project site in order to establish baseline waterquality conditions at such features, IUSA will use the above information regarding these
springs to guide it's search for springs, and will then attempt to produce coordinates andelevations for the locations of these particular springs.
To provide approximate coordinates for these seeps or springs, IUSA will conduct f,reld
reconnaissance to attempt to define locations of such features and will utilize hand-heldGPS with a resolution of */-5 feet to locate the x, y, and z coordinates for them.Information generated will be compared against historic maps to verify locations andelevations. IUSA will present these findings to DEe by the end of July.
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Mr. William J. Sinclair
Iune22,2001
Page I 5 of20
after comparison of the site plan map from the octobe, l,.no ,nlorSr*
investigcttion report (Figure I l) with the IUC topographic map provided on-June
13' 2000' v'e have estimated the survey coordinatet o7 tt,n septic tank drainfield
located a short distance Southwest of the existing iruck scale house. piease
confirm the accuracy and content of rhe DRC estimated survey coordinates forthis leachJield, as provided in Table l, below;
Table DRC 1. Etti*otu! Surrg tgordinates; Former IUC Truck Scale House Leachfield
Corner Easting (feet)Northing (feet)
Norlhwest 2,s80,735 3 22,3 30
Northeast 2,580,800 3 22,3 30
Southeast 2,580,800 322,260
Southwest 2,5 90,7 3 5 322,260
iteml - after reviewof the IUC information provided to date, Dnc sffi have determined thatadditional related facilities at the site need to be lociied on the combined siteplan and topographic map, including but not limited to;
RESPONSE
The searches defined above under l.A. yielded original engineering drawings whichdepict the design location of the historic scalehouse leachfield. tUSa has used thishistorical inforrnatiott to locate the Scalehouse Leachfield on the drawing enclosed asAttachment K. The coordinates are also listed on the summary of coordinates andelevations enclosed as Attachment L.
locared a short distance North-Northwest of the trrrk r*ln houru
reportedly
_ once located
southeast of the main ffice building.
- including
the location of the above ground tank that *ot orri lo*rni on the Norlh
side of the mill administration building and the pipe that drained it to the
mill site wa,ytewater catchpond ("Roberts pond;).
(1)
(2)
(3)
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Mr. William J. Sinclair
June22,200l
Page 1 6 of20
(s)
Former Mill site sedimentation Pond - also known as the fly-ash pond
(6/79 D'Appolonia Design Report, Sheet a qf l6)
Former Solid wctste Landfill - located near one of the wildlife ponds East
qf the mill site.
Please ensure that the survey coordinates for all of the related facilities outlined above
are accurately plolted on the combined map also requested.
RESPONSE
The searches defined above under
depict the design locations of these
features and indicated them on the
coordinates are also listed on the
Attachment L.
LA. yielded historic engineering drawings which
features. IUSA estimated the coordinates of these
map enclosed as Attachment K. The features and
summary of x, y and z coordinates enclosed as
Incr 4. Item we appreciate
the description of the number of wells and the magnitudi o7h"oi riilore seen in wellsat the facility (9/8/00 IUC Revised GIR, p 26) However, as outlined in the March I 3,DRC Request .for Confirmation (RFC) letter, DRC staff will complete the final water
table contour and isopach thickness mapsfor the shaliow aquifer (3/t3/01 DRC letter,pp. 4-5). This leaves two remaining items from the February 7, 2000 DRC RFI that
continue to be unresolved, as outlined below;
and Moni ells Item
14 cJ - we have reviewed your september 8, 2000 respontn ord f*ndT yriCi
address the need to identifu the root cause for the
-increasing
head ff;nd. As
Wlained previously it is likely that the rising groundwater levels observed is
likely due to some artificial source of groundwatei recharge. Consequently, sucha study will require the installation of additional wells and/or pilzomiters in
order to identifu the source of the man-made recharge. In order to facilitate thise{ort, DRC staff have prepared several figures io guide your"planning, as
described below;
(1)DRC Corrected well Hydrograohs - have been prepared for existing
monitoring wells at the facility, based on corrected groundwater elevatioi
data provided you in the March I3, 2001 DRC RFC letter, see Attachmentl, below. These hydrographs establish that the wells with the greatest
increases in groundwater head include (in decreasing order). tuw-rt, MW-
19, MW-18, and MW-11.
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Mr. William J.
June 22,2001
Page17 of20
(2)DRC water Table Equipotential Map; september, 2000 - this water table
contour map prepared from IUC water level data collected in september,
2000 includes groundwater head data from most of the existing
monitoring wells at the site, plus all the chloroform investigation wells
recently installed. Reviev, of this DRC map suggests that the artificial
groundwater recharge source is located North and East of wells MW-4
and MW-19, see Attachment 2, below.
DRC Delta Head Contour Map - the magnitude of increased head in each
IUC well was calculated by DRC staff after review of the hydrograph
trends seen in Attachment l. DRC staff took selected heads from the
spring of 1983 as representative of baseline conditions at the facility.
From this, increases in head u,ere calculated for each well thru summer,
2000. These head increases (Delta Head values) were then tabulated and
conloured on a map; see Attachment 3, below. This map suggests that the
artificial source of groundwater recharge is located east of MI4-4 and
Mtt/-19
(3)
Please provide a plan and schedule for the installation of additional monitoring
u,ells and/or piezometers to locate the source of the artificial groundwater
rechnrge apparent North and East of wells MW-4 and MW-19.
RESPONSE
IUSA has, in the Chloroform Investigation, provided (based on discussions with
DRC) qualitative data as to potential sources of increasing water levels observed
on the eastern portion of the Mill property. However, we understand DRC's
request that IUSA further investigate the increasing water levels in certain wells.
In general, the wells exhibiting water level increases are in the portions of the site
that early investigators indicated would be most likely to exhibit naturally
occuming groundwater mounding. For example, the early Mill siting
investigations reported the probability of natural-occurring groundwater
mounding beneath the project site. In particular, the Environmental Report
(Dames & Moore, 1978) stated, in Appendix H:
"lt is probable that slight ground water mounding may occur in the
east-central part of the mesa. Ground water levels may be highest
in the center of the mesa, coincident with the highest land
elevations, and lower to the east and west where ground water can
drain from the mesa through springs and seeps in the canyons of
Westwater, Cottonwood and Corral Creeks."
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Mr. William.I. Sinclair
June 22,2001
Page 18 of20
"lt appears that the shallow ground water forming the water table
throughout the project vicinity has a gradient toward the south-
southwest. The general ground water gradient appears to be
related to the general topographic gradient; i.e., the highest
elevations are generally at the northeastern edge of the project site
near Highway 163 and the lowest elevations are at the property's
southwest corner."
As later reported in Environmental Assessment Proposed Land Exchange
Between Enerey Fuels. Ltd. And U.S. Bureau of Land Managernent White Mesa
Uranium Project San Juan Counqr. Utah (Dames & Moore, July 1980), the
probability of naturally-existing groundwater mounding was "partially
substantiated by water levels measured in drill holes and wells in the vicinity of
the White Mesa mill (Dames & Moore,1978).
IUSA concurs with DRC that the source of apparent recharge is most likely
northeast of the Mill. In response to DRC's request for a plan and schedule for
either additional monitoring wells or piezometers, as well as similar related
questions raised in DRC's June 7, 2001 letter to IUSA regarding the Chloroform
Investigation, IUSA requests the opportunity to meet with DRC to discuss
specifics of the following concepts IUSA would propose to include in our field
investigations. Specifically, IUSA anticipates that the field investigations would
include siting of approximately two to four piezometers in an area north and
northeast of monitoring wells showing the greatest increases in water levels.
IUSA would include scheduled, regular surveillance of water levels in those
piezometers until the water levels reach post-drilling equilibrium, and continue
such scheduled water level measurements to evaluate the water table gradient.
Also, as discussed at the April 7, 2000 meeting, IUSA will continue to generate
updated water table plots incorporating these data, for the purpose of evaluating
how the perched groundwater zone behaves during this investigation period, and
to provide these updated plots to DRC.
In addition, IUSA anticipates performing pumping tests in those wells exhibiting
significant water level increases to assess potential changes in their hydraulic
performance due to water level increases and to relate the implications of the
pump test results to groundwater protection issues and the Chloroform
Investigation. These field investigations will therefore be designed to address the
data objectives required to respond to DRC's questions regarding the Chloroform
Investigation, while also allowing IUSA to further investigate the source of what
appears to be man-made recharge originating to the north and northeast of the
property.
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Mr. William J. Sinclair
June 22,2001
Page l9 of20
In the meantime, as IUSA and DRC discussed during the April 25tr' meeting,
IUSA will be responsible for preparing water table contour and saturated
thickness maps for the perched groundwater being rnonitored at the Mill. An
independent hydrologist assisted IUSA in preparation of contour maps, using the
correct interpretive tools based upon the distribution of the data at the site.
Enclosed as Attachment M are maps depicting the Water Level Contours for
December 2000 and March 2001, and Saturated Thickness of Perched Zone.
Additional Groundwater Ouality Data [p. ]5, Item l4.DJ - we acknowledge that
your chlorofor* investigation report will address groundwater quality issues and
the potential .for other contaminants as indicators of chloroform discharge
(10/4/00 IUC Chloroform Report). we have also received your September 15,
2000 Groundwater Background Water Quality Report. This issue and both of
these reports will be reviewed at a later date.
Shallow Aquifer Field Permeabili\): Cooies o.f Notes, Calculations, and Data [po. ] l-12.
Item I l.Bl - the September 8, 2000 IUC response referred to yourfailure to locate copies
of original laboratoryt permeability data. In contrast, our original February 7, 2000
request was .for copies of notes, calculations, and data for the field permeability tests
conducted on ntonitoring wells, borings, and piezometers at the facility. To reiterate,
please provide the following:
Field notes and data collectedfrom each field permeability test, and
Detailed description and justification of calculations and analysis methods used
to determine permeability. In the event that test data from cerlain wells vtas re-
analyzed, please explain why re-analysis was required.
After submittal and review of this information, DRC staff will prepare a summary table of
all available pernteability data and askfor IUC concurrence.
In the event thal the information requested above cannot be provided, please submit a
plan and schedule for field permeability testing of all shallow aquifer wells and
piezometers at the facility.
RESPONSE
Searches were performed as described under l.A. above, and IUSA was successful in
locating some new data. This information is included in the response to item 1. A. above.
In addition, HGC is compiling some of its field notes and a discussion of analytical
techniques for the tests conducted at MW-4 and MW-I9. Based on this complete review
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Mr. William J.
June 22,2001
Page20 of20
of available hydraulic data, IUSA is proposing to conduct purnp tests on selected wells to
provide additional information.
The drilling and logging data indicate that the physical characteristics of the rocks
beneath the Mill vary considerably both vertically and laterally. Therefore, in June of
2000,IUSA discussed with DRC the appropriateness of attempting to use the limited data
available to create a "contour" map based on specific data for specific bore holes. The
feasibility of such an approach may be limited in view of the fact that hydraulic
properties of this stratum, which have been determined from 12 single, well-
pumping/recovery tests and from 30 packer tests yielded a broad range of hydraulic
properties, which will not reasonably lend themselves to a defensible contouring
approach. Furthermore, the depositional history and composition of the Burro Canyon
Formation is such that one would expect random variability rather than mapable contours
from one point to another. Given these limitations, IUSA asked HGC to attempt to show
general areas with similar permeability values based upon selected data available for the
saturated zone, which is presented as a Perched Zone Permeability map. In addition,
HGC prepared a Contour Map of Top of Brushy Basin. These two maps are enclosed as
Attachment N.
If you have any questions or comments regarding this letter, please contact me at (303) 389-
4160.
W,ru-
Harold R. Roberts
Vice President - Corporate Development
Enclosures, Attachments A - N
cc/att: Larry Mize, UDEQ Division of Water Quality
Loren Morton, UDEQ Division of Radiation Control
R. William von Till, NRC
Michelle R. Rehmann
Stewart J. Smith
Roman Pyrah
cc w/out att: Dianne Nielson, UDEQ
Dave Arrioti, S.E. Utah Health Department
Ron F. Hochstein, IUSA
David C. Frydenlund, IUSA
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Attachment A
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i{fDRO GEO CHErvt. INC.Enyironmental Scienrr 0 Tcrh,,'0k11, -
Jwrc21,2001
Mr. Harold Roberts
Intemational Uranium Corporation
Independen ce plaza, Suite 950
1050 lTth Street
Denver, CO 80265
Review of 1994 Drilling program Results
f:li"?:i,*:,i:,: ,X":,*:.,*,,Tg:_lgrqtnei yeil.insta[ation, and permeablity testing
HH"":::'l'**:*-,:r:^,11i:11::li:":,",tiq.!n"7r,;d;;';;;;.";'ffi ,#'#i:ililffi; 'ff;:1ffi::::lift:
this letter rennrf hcc hoo- n*a*^-^r r^- rL -ITY:::::[T}T T.T f"ryed for the purpose of serving as a final reporr ";;:T:rir#*:H":}tY ;llT : ::l'l'^1.*':, ::I':y "i, * i,. i*e#, !#"ilffi ;.'',i## ;1T;
:::rff*,:L ***"*"nmentar services, and examinutio" oi-ilii';#;l';'d'#'il;Jffi;geotechnical borings.
t TITAN' 1994' Hydrogeological Evaluation of white Mesa Uranium Mill. prepared by TITAN corporation.
Dear Harold,
This letter report provides u tYT-Ty and interpretation of field tests conducted at thewhite Mesa Uranium Mill Site near Blanding, utah, drlring rq9+. The testing was conductedprimarily by Peel Environmental Servic"r, Ld romirt.a of the installation of 3 perchedgroundwater monitoring wells and, 4 angled geotechnical borings to further charactenze thehydrogeology of the trj.: I summary of tle-sitI nyarog-Jogy is provided in TITAN, lgg4t. lnbrief, the site is underlain by the Dai<ota an$ Burrl ciyo, ianditones, which are underlain bythe Brushy Basin shale member of the Morrison Formation. The Burro canyon sandstone hostsa thin saturated zone perched on the underlyi"g n*rhy g";i, shale. Approximately 100 verticalfeet of unsaturated Dakota and Burro canyJn ,*a.to.r. separate the Mill facility from theperched water zone beneath the site.
Gl7l8000rReports\06080tMR.doc
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Ca C
5l Wesr Wermore, Suite l0I Tucson, Arizona BSTOS-16Zg
t?52O.293.1500 520 .293 .LSSO-Fax 80o.727 .5 547-Toll Free
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Mr. Harold Roberts
June 21,2001
Page2
Description of Work performed
Work at the site included the following:
Insl llation of perched groundwater monitoring wells Mw-20, Mw-21, and MW_22 (Figure l).
In_stallation of geotechnical angle borings GH-94-1, GH-}4-2A. GH_94-3, andGH-94-4 at the margins of and extendinglenglth tailings cells 3 and a @igure l).coring, lithologic logging, and geophysicar logging ir tn. angle una "r".ticat
borings.
Y:{": logging of some of the angle borings.
Field and laboratory permeability testing of the Dakota, Burro canyon, andBrushy Basin.
All borings installed at the site
information including :
were used to provide lithologic and hydrologic
Lithology of the Dakota and Burro canyon sandstones and of the Brushy Basinshale.
Permeability of portions of the Dakota and Burro Canyon sandstones and of theBrushy Basin shale.
i|] _:gl.^"0:X:_y:f 1r.11tt*, to.turther characterize the lithology and rock quali
**Tr:11,p:**atr,.,-J.uruo,in!,i;;;;d#;I;# jl.;".'""f,.#tiH:,?,:1,,ll
;d,#.ffi '""#ffi HiJff"l'J:fl?perched water downgradient of the existing percired moniioring welr network.
of
4)
5)
l)
2)
3)
1)
2)
Downhole constant-head packer tests were conducted at various intervals within theDakota, Burro canyon, and Brushy Basin units that were inters""t"a uy tt e angte borings, andwithin portions of the Brushy Basin intersected by the vertical borings. only the upper portionof the Brushy Basin.was penetrated b1$e-lorings slug tests within the perched groundwaterzone were conducted in Mw-20 and MW-22 after their Jompletion u, .orito.ing wells. Thesetests were used to provide estimates of the horizontal p"r-"ubility of the tested intervals. coresamples from the Brushy Basin were collected from vertical borings Mw-21 and MW-2 2, andsubmitted to western Engineers, Grand Junction, colorado, for anallsis of vertical permeability.
Perched monitoring wells Mw-20, }y'Iw-2l, and Mw-22 were installed at the locationsshown in Figure 1 by drilling a l0-inch diameter surface hole to a depth of approximately 20 feetbelow land surface (bls) and cementing an 8-inch diameter steel surfac"
"uring in place using a5oz bentonite cement slurry. E4ch vertical boring was then rotary drilled to a depth ofapproximately 70 feet bls using a 7 7ls-inchblt. Borinfs were then advanced to total depth using a3 '/3 -inch coring bit. Mw-20' Mw-2 I , and MW-2 2 iere cored to total depths of approximately
G17 I 8000\Reports\06080 I MR.doc
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Mr. Harold Roberts
June27,200l
Page 3
114'5 feet' 117 feet, and 140 feet bls, respectively. Each boring penetrated approximately 20 to25 feet of Brushy Basin shale.
wire line geophysical lo_gs (natural gamma and neutron) were then run. Constant headr. L,urlsktlll neao
i#T::TfJi*Li*^'t*.13Tl:11;1 "r* ei'r"+;l, tq;:ach h;il;;' cemented up tolli,,:#'YP,flf^X 9try: contact.(appr"ii*rtrry qb f.., bls in Mw_2;51"il:i;i:;;,u, yr ree[ Dls m
M#:;l'#:.'"?:"f"",1 15.::YY-?L:,T1i,::rha:i l ierched g.ou,J*uieimonitoring *"nl;ti;M"w-;ffi;#;:;.lf, ffi i;70 and 90 feet hls end tr,,mr-oo L^*.,,^^- --^-^--
I :r T:,11 *:: 9]': -ilg, yy- -1;.
.b ":*."n upp.oximately
-s
o *a 1 2 0 feet bl r. "tffi [T;|*HIlithologic logs are provided in Attachment l.
tnlt 1r
Angle (geotechnical) borings were installed at the locations shown in Figure 1. GH-94-land GH-94-2 wete drilled at an azimuth of N30'E and an angle of 40o to the vertical. Each holewas cored from the top of the Dakota to the total depth oiupp.ori-ately 165 feet. GH-94-l wasdrilled with water and GH-94-2A with polymer. Th;"ly.er was reportedly needed to enhancecore recovery' constant head packer tests *.r. ,ordu.t.d at various d.pth intervals in bothborings, and natural gamma and neutron geophysical logs were run. A video log was mn onGH-94-2A' Both holes were abandoned uy priggirrg;t,h;5olo bentonite cement slurry.
GH-94-3 and GH-94-4 were drilled at an azimuth of l50o and an angle of 40o to thevertical, and logged in the same fashion as GH- 94-l and GH-}4-2A i"uriru included naturalgamma' neutron, and video- A polymer was used to drill both. conrt*t ilEua packer tests werealso performed on the borings at various depth intervals after washi;g;;;;*ove the drillingfluid. Both borings were abandoned in the same fashion u, cH-q+-t and GH-94-2A.
Raw data (Attachment l) from corrstant head packer tests was used to calculate the
i:fr[?llly for each interval tested using the following ilrmutu as designated in the pretiminary
ff-a
2trLH
K: permeability (cm/s or ff/min)
Q: flowrate (cm3/s or ft3lmin;
L_: test interval length (cm or ft)H: total hydraulic head (cm or ft)r: borehole radius (cm or ft)
Results
well completion and geophysical logs are provided in Attachm ent 2.tests and laboratory permeability tests are provided in Attachment 3. Table I
G:\7 I 8000\Reports\06080 I MR.doc
Results of slug
summarizes the
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results 9f the permeability tests. These values may be slightry different fromreported because of the recalculation based on the ru* dutu.'
those previously
Based on the information provided
GH-94-3, and examination of core from
observations were made:
in the Attachments, the video logs of GH_94_2A andthe angle borings stored at the site, the following
The Dakota and Burro canyon sandstones are predominantly composed of hard,fine-- to medium-grained locally cross-beddid sandstones with interbeddedconglomeratic layers, and layers oishale and claystone.
Few fractures are present in the cores or observable in the video logs. wherepresent fractures are closed and/or sealed with gypsum.--partings in the core areprimarily related to bedding planes, and shale ""i'"r"y i"terbeds.video logs show conglomeratic zones, occasional cross-bedding feafures, andscour features within planes perpendicular to the direction of drilling. Thesescour features, which,ofte1.?p-q.* only on one side of the boring, are most rikelyrelated to scoring by the arilbit.
video logs also show washouts
_in claystones, small washouts parallel to beddingplanes in sandstone, and smaller washouts of nr"ilguined matrix materialsurrounding larger clasts in conglomeratic zones.
ll:J:Tr:P^i-1y.,.1$,_ T*l : T similar ro values colected from previous siteinvestigations and show the average-horizontar permeabilisandstJnetobeonil"",i;:?'i-;,X#,?il"18:ffi:"fl
":i5:,,:::".:"*_1Y-.,!rHThese values are consistent with thelithology of these units. The avera ical hydraulic conductivity of the upper portion of the
rrurvrv6J vr L,E)tr u,rls' r ne averase verttcal hydraulic conductivity of the upper portion of the|,lfll ?:::::,:lt: of.r,gf l0-Fcm/s, "i r.Jr, O,pi."i[, u tight ctay material and consistent
#'1il'Jy:ly*,:',:r"1l1el:ry'-0.i.*;?'.1*!;;;,ffi;:ffi fi :,ffi :::ffi:lffiffid;ftHl"Hfi';;Tffihr;rlrotrli^ nn-,1',^+l-,i+:^^ -,-- 1:i r r . r rrtr.lJurEu vefllcal
Y}T:lt^."."10::tivities are likely higher than would be expected for deeper, less weatheredportions of the unit.
Conclusions
Results of the 1994 drilling and testi
;:,X":;#i:l**i3*['f, ffi ffi'B]fl ::f ffi .::3ffX",,':L:,HJ,]'il*';::H:;Ti;
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[Hr:1#,i::r"":,::*"._j.,,.?^.Ejix,]i1li:, "r ri*,"i"ei"G,;#;ff1d'*;"x,r#'d;:from angle borings indicates that fluids present in the subsurface willvvrursr url'v.Ler ruat rlulqs present m the subsurface will be transmitted primarilyvia intergranular porositY, and that minor fractures, because they are few in number and arefew in number and are,.erieitr. .n".i # iffi ;:ffi #:Thi. i. n^-^L^-^+^l L-- 11-rhis is corroborated bv thJiisults of pump tests conduc,.d ;;;;H; #.i* ,lini:[HffiT"J:
Gi7 I 8000\Reports\06080 I MR.doc
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consistent with flow-through a porous medium and do not display features characteristic of a
ffi,}f,i,Tedium'
These concluiions are also consistent with those p;";t"din the preliminary
Senior Hydrogeologist
C:\7 I 8000\Reports\06080 I MR.doc
TABLE
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TABLE 1
' Note: Packer leaking, value overestimated.' Note: This value is reported to be anomalously high due to a vertical fracture present in the core sample.
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HYDRAULIC CONDUCTMIry MEASUREMENTS
WellNo.
lnterval
(down hole depth
in feet)
Type of Test Formation
Horizontal
Hydraulic
Conductivity
(cm/sec)
WMMW-20 86.4-89.08 sluq Burro Canvon 5.29E-06110.5-114.5 Constanf Heed Brushy Basin 21E-07WMMW-21 109.5-1,t7.0 uonstant Head Brushy Basin 8.10E-06WMMW-22 76.0-120.0 Slug Burro Canvon 2.02E-06130.0-134.0 Constant Head Brushy Basin Nn TakGH-94-1 34.0-40.0 Constant Head Dakota 5.9E-0640.0-50.0 Constant Head Dakota 4.5E-0570.0-80.0 Constant Head Burro Canvon 6.3E-0592.0-100 Constant Head Burro Canvon-5.1E-04103.0-'110.0 Constant Head Burro Canvon 6.3E-04130.0-140.0 Constant Head Brushy Basin 1.4E-04163.0-165.0 Constant Head Brushy Basin No TakeGH-94-2A 34.040.0 Constant HeE Dakota 2.5E-0532.5-40.0 Constant Head Dakota 7.2E-04'50.0-56.0 Constant Head Dakota N Rtr-NE
60.0-70.0 Constant Head Burro Canyon 4.0E-0570.0-80.0 Constant Head Burro Canvon '1.6E-04
80.0-90.0 Constant Head ---Burroaanffi-1.2E-04138.0-144.0 uonstant Head Brushy Basin No TakeGH-94-3 '155.0-161.0 Constant Head Brushy Basin 2.7E-061138.0-144.0 Constant Head Brushv Basin 2.2E-06
Well No.
lnterval
(down hole depth
in feet)
Type of Test Formation
Vertical
Hydraulic
Conductivity
(cm/sec)
WMMW-21 106.5-107.0 Laboratory Brushv Basin 1.15E-10114.5-115.0 Laboratnrv Brushy Basin 4.00E-07WMMW-22 122.2-122.7 La0oratory Brushv Basin 1.10E-06126.3-127.2 Laboratory Brushy Basin 6.94E-10133.3-133.7 Laboratory Brushv Basin 1.58E-09137.3-137.8 Laboratorv Brushy Basin 5.95E-04',
G:\7 I 8000\Reports\06080 I MR.doc
F'IGURES
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PROP (,
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EXPLANATION )fit-22a
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- APPROXIMATE LOCATIONS
.4N9.L_E_GEorEcHNprteoRtNtjS'IN-DPERCHEDMoNtroRtNG wELLs Mw-eri; MW-ri;'Alif M-vi,_E
ATTACHMENT 1
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DESCRIPTION REMARKS
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CONSTANT HEAD PRESSIIRE TESTS
Weil Number: WMMW-2O
White Mesa Project
San Juan County, Utah
Pressure Test No. L
Date:8/73/94
Elevation: 5538' GL Estimated
Total Depth: 1.14.5'
Gound Level to Gauge: 2.0'
Hole Diameter: 3 7 /8" (0.32')
Depth:
Measured: 108.5' - 1,'1,4.5'
Test Interval: 6.0'
Packer Pressure: 300 psig
TIME PRESSURE
09:10 am 130 psig
09:15 am t30 psi[
09:20 am t30 |si[
09:25 am taO |si[
09:30 am 130 psig
09:35 am 130 psig
09:45 am 175 psig
10:07 am 150 psig
10:15 am 150 psig
FLOW RATE
0.40 gpm
0.25 gpm
0.20 gpm
0.13 gpm' 0.17 gpm
0.05 gpm
0.10 gpm
0.20 gpm
0.15 gpm
Reset packer 2 feet deeper: Test interval 110.5 to 114.5 (4.0')
Surge; packer leak?
Surge; packer leak?
Siight surging
Slight Surging
10:34 am 130 psig 0.02 gpm
10:40 am 130 psig 0.0L gpm
1.0:45 am 130 psig 0.01 gpnr
10:50 am 130 psig 0.01 gpm
10:55 am t30 psi[ 0.01 frml1:00 am i60 psi[ o.os [[m
Remarks: None
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DESCHIPTION
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No. ol
REMARKS
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CONSTANT HEAD PRESSURE TESTS
Well Number: WMMW-21
White Mesa Project
San ]uan Cotrnty, Utah
Pressure Test No. 1
Date:8/13/94
Elevation: 5558' GL Estimated
Total Depth: '1.'17.0'
Gound Level to Gauge: 2.0'
Hole Diameter: 3 7 /8" (0.32')
Depth:
Measured: 109.5 -117.0'
Test Interval: 7.5'
Packer Pressure: 300 psig
TIME PRESSURE FLOW RATE
1.2:15 pm 130 psig 0.30 gpm
12:20 pm 130 psig 0.50 gpm
1,2:25 pm 130 psig 0.60 gpm
12:30 pm 130 psi 0.50 gpm
Remarks: None
BOHING LOG
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Client:Date:
DESCRIPTION REMARKS
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CONSTANT HEAD PRESSURE TESTS
Well Number: WMMW-22
White Mesa Project
San Juan County, Utah
Pressure Test No. 1
Date:8/13/94
Elevation: 5516' GL Estimated
Total Depth: 140.0'
Gound Level to Gauge: 2.0'
Hole Diameter:3 7/8" (0.32')
Depth:
Measured: 130.0 - L40.0'
Test Interval: 1.0.0'
Packer Pressu-re: 300 psig
TIME
02:00 pm
02:05 pm
02:10 pm
02:15 pm
02:20 pm
PRESSURE
100 psig
125 psig
125 psig
125 psig
125 psig
FLOW RATE
0.00 gpm
0.00 gpm
0.00 gpm
0.00 gpm
0.00 gpm
Remarks: Pressure increase to 130 psig; Packer started to move slightty, slight
surging.
BORING LOG
Proiect: lJii*- /-/es.,Geoloqist : - t/;aL
Client: En..r. F-. ls Date: 8/tr /q
DESCRIPTION
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Client:Date: E/rz/lc
DESCRIPTION
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Sheet No. 3
REMARKS
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CONSTANT HEAD PRESSIJRE TESTS
Well Number: GH-9&1
White Mesa Project
San ]uan County, Utah
Pressure Test No. 1
Date: 8/71,/94
Elevation : 5592' GL Estimated
Total Depth:40'
Gound Level to Gauge: 0.0'
Hole Diameter:3.0" (0. 125')
Depth:
Measured: 34.0'- 40.0'
Vertical: 26.2' - 30.8'
Test Interval:
Measured: 6.0'
Vertical: 4.6.0'
Packer Pressure: 300 psig
TIME PRESSURE
02:10 pm 90 psig
02:15 pm 90 psig
02:20 pm 90 psig
02:25 pm 90 psig
02:30 pm 90 psig
Remarks: None
FLOW RATE
0.30 gpm
0.20 gpm
0.20 gpm
0.20 gpm
0.20 gpm
Pressure Test No. 2
Date:8/11./94
Elevation : 5592' GL Estimated
Total Depth: 50'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Measured: 40.0'- 50.0'
Vertical: 30.8' - 38.5'
Test
Measured: 1.0.0'
Yertical: 7.7'
Packer Pressure: 300psig
TIME
03:10 pm
03:15 pm
03:20 pm
03:25 pm
03:30 pm
PRESSURE
30 psig
30 psig
30 psig
30 psig
30 psig
FLOW RATE
1.40 gpm
1.00 gpm
1.00 gpm
1.00 gpm
1.00 gpm
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None
Pressure Test No. 3
Date:8/11,/94
Elevation: 5592' GL Estimated
Total Depth: 80'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured:70.0'- 80.0'
Vertical: 53.9' - 6'1,.6'
Test Interval:
Measured:10.0'
Yerticat:7.7'
Packer Pressure: 300 psig
TIME
08:00 am
08:05 am
08:13 am
08:17 am
PRESSURE
30 psig
30 psig
30 psig
30 psig
Well Number: GH-94-1
FLOW RATE
1.70 gpm
1.80 gpm
1.70 gpm
1.70 gpm
Remarks: None
Pressure Test No. 4
Date:8/11/94
Elevation: 5592' GL Estimated
Total Depth: 100'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: 92.0' - 100.0'
Vertical: 70.8' - 77,0'
Test Interval:
Measured: 8.0'
Vertical: 6.2'
Packer Pressure: 300 psig
TIME PRESSURE FLOW RATE
09:20 am 30 psig 13.50 gpm
09:45 am 30 psig 13.00 gpm
09:50 am 30 psig 13.00 gpm
09:55 am 30 psig 13.00 gpm
Remarks: NoneI
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Well Number: GH-94-1
Pressure Test No. 5
Date: 8/72/94
Elevation: 5592' GL Estimated
Total Depth: 1.1.0'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. i25')
Depth:
Measured: 1.03.0' - 110.0'
Vertical: 79.3' - U.7'
Test Interval:
Measured: 7.0'
Vertical: 5.4'
Packer Pressure: 300 psig
TIME PRESSURE
10:40 am 30 psig
'1.0:47 am 30 psig
10:55 am 30 psig
11.:00 am 30 psig
Remarks: None
FLOW RATE
15.5 gpm
15.5 gpm
15.6 gpm
15.5 gpm
Pressure Test No. 5
Date:8/12/94
Elevation : 5592' GL Estimated
Total Depth: 140'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: L30.0', 1.40.0'
Vertical: 100.1.' - 707.8'
Test Interval:
Measured:10.0'
Yertical: 7.7'
Packer Pressure: 300 psig
TIME PRESSURE FLOW RATE
01:45 pm 30 psig 4.50 gpm
01:50 pm 30 psig 5.00 gpm
01:55 pm 30 psig 5.00 gpm
02:00 pm 30 psig 5.10 gpm
02:05 pm 30 psig 5.00 gpm
Remarks: None
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pressure Test No. 7 well Number: GH-94-1
Date:8/12/94
Elevation: 5592' GL Estimated
Total Depth: L50'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured :'I..46.0' - i.50.0'
Vertical: 712.4' - 1.15.5'
Test Interval:
Measured: 4.0'
Vertical: 3.1.'
Packer Pressure: 300 psig
Remarks: Test aborted; unable to get good packer seat.
Pressure Test No. 8
Date:8/12/94
Elevation: 5592' GL Estimated.
Total Depth: 165.0'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured:'l,,62.0' - 165.0'
Vertical: 724.7' -'j,27.0'
Test Interval:
Measured:1,0.0'
Ye*ical:7.7'
Packer Pressure: 300 psig
Remarks: Test aborted; unable to get good packer seat.
Pressure Test No. 9
Date 8/72/94
Elevation : 5592' GL Estimated
Total Depth: 165.0'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: L53.0' - 1.55.0'
Vertical: L25.5' -'1,27.0'
Test Interval:
Measured: 2.0'
Vertical: 1.54'
Packer Pressure: 300 psig
TIME PRESSURE
12:45 pm 30 psig
12:50 pm 30 psig
FLOW RATE
0.00 gpm
0.00 gpm
Well Number: GH-94-1t:
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01:00 pm 30 psig 0.00 gpm
Remarks: Increased pressure to 60 psig; packer leaking?
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DESCHIPTION REMARKS
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CONSTANT HEAD PRESSURE TESTS
Well Number: GH-94-2A
White Mesa Project
San ]uan County, Utah
Pressure Test No. 1
Date:8/15/94
Elevation: 5582' GL Estimated
Total Depth: 40'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: 34.0'
Vertical: 26.2' -
Test Interval:
Measured:5.0'
Vertical: 4.6'
Packer Pressure: 300 psig
TIME
Ll:45 am
11:50 am
Ll:55 am
12:00 pm
12:05 pm
PRESSURE
30 psig
30 psig
30 psig
30 psig
30 psig
FLOW RATE
0.35 gpm
0.35 gpm
0.35 gpm
0.35 gpm
0.35 gpm
None
Pressure Test No. 2
Date:8/75/94
Elevation: 5582' GL Estimated
Total Depth: 40'
Gound Level to Gauge: 0.0'
Hole Diameter:3.0" (0. 125')
Depth:
Measured:32.5' - 40.0'
Vertical: 25.0'- 30.8'
Test Interval:
Measured: 7.5'
Vertical: 5.8'
Packer Pressure: 300 psig
TIME PRESSURE
12:10 pm 30 psig
12:i5 pm 30 psig
1,2:20pm 30 psig
12:25 pm 30 psig
FLOW RATE
12.00 gpm
12.00 gpm
12.00 gpm
12.00 gpm
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Remarks: Water returning to surface; test inaccurate and
Pressure Test No. 3
Date:8/15/94
Elevation: 5582' GL Estimated
Total Depth: 55'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: 50.0'- 55.0'
Vertical: 38.5' - 43.1.'
Test Interval:
Measured: 6.0'
Vertical: 4.5'
Packer Pressure: 300 psig
TIME PRESSURE
01:50 pm 30 psig
02:00 pm 30 psig
02:05 pm 30 psig
02:15 pm 30 psig
Remarks: None
Pressure Test No. 4
Date 8/15/94
Elevation: 5582' GL Estimated
Total Depth: 70'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 1.25')
Depth:
Measured: 60.0' - 70.0'
Vertical: 46.2' - 53.9'
Test Interval:
'Measured: 10.0'
Yertical:7.7'
Packer Pressure: 300 psig
TIME PRESSURE
L0:40 am 35 psig
10:45 am 35 psig
10:50 am 35 psig
L0:55 am 35 psig
11:00 am 35 psig
Number: CH-94-2A
inconclusive.
FLOW RATE
1.50 gpm
1.40 gpm
1.40 gpm
1.40 gpm
FLOW RATE
1.80 gpm
1.10 gpm
1.10 gpm
1.10 gpm
1.10 gpm
None
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Well Number: GH-94-2A
Pressure Test No. 5
Date:8/1,5/94
Elevation: 5582' GL Estimated
Total Depth: 80'
Gound Level to Gauge: 0.0'
Hole Diameter:3.0" (0. 125')
Depth:
Measured:70.0'- 80.0'
Vertical: 53.9' - 61,.6'
Test Interval:
Measured: 1.0.0'
Yertical:7.7'
Packer Pressure: 300 psig
TIME
1.1.:35 am
1.l.:40 am
LL:45 am
11:55 pm
PRESSURE
30 psig
30 psig
30 psig
30 psig
FLOW RATE
5.50 gpm
4.40 gpm
4.45 gpm
4.40 gpm
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Remarks: None
Pressure Test No. 6
Date:8/75/94
Elevation: 5582' GL Estimated
Total Depth: 59'
Gound Level to Gauge: 0.0'
Hole Diameter:3.0" (0. 125')
Depth:
Measured: 80.0' - 90.0'
Vertical: 6'1,.6' - 69.3'
Test Interval:
Measured: 10.0'
Yertical:7.7'
Packer Pressure: 300 psi
TIME
12:35 pm
1,2:40 pm
12:45 pm
12:00 pm
12:55 pm
PRESSURE FLOW RATE
30 psig 5.80 gpm
30 psig 3.50 gpm
30 psig 3.40 gpm
30 psig 3.40 gpm
30 psig 3.40 gpm
Remarks: None
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Well Number: GH-94-2A
Pressure Test No. 7
Date:8/75/94
Elevation: 5582' GL Estimated
Total Depth: 1.44'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: 138.0' -'l.,M.O'
Vertical: L06.3' - 110.9'
Test Interval:
Measured: 6.0'
Vertical: 4.6'
Packer Pressure: 300 psi
TIME
02:25 pm
02:30 pm
02:53 pm
PRESSURE
90 psig
90 psig
90 psig
FLOW RATE
0.00 gpm
0.00 gpm
0.00 gpm
Remarks: Attempted to increase pressure to 120 psi; lost packer seat.
BOHING LOG
Project: ,t^, .L /.1 z 3rl Geoloqist : l't t,uClient: : F N Date: ?/ tslq
DESCRIPTION
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REMARKS
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Drill Hole No. e U - 1q -3
DESCRIPTION
Co.cg tL (a-*lU
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Sheet No. s of3
REMARKS
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CONSTANT HEAD PRESSURE TESTS
Well Number: GIJ-943
White Mesa Project
San |uan Cotrnty, Utah
Pressure Test No. 1
Date:8/78/94
Elevation: 5580' GL Estimated
Total Depth: 165.0''Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. 125')
Depth:
Measured: 155.0' - 151.0'
Vertical: 1l.9.3'' 124.0'
Test Interval:
Measured: 6.0'
Vertical:4.6'
Packer Pressure: 300 psig
TIME
11:30 am
11:35 am
11:40 am
1L:45 am
PRESSURE FLOW RATE
60 psig 0.10 gpm
60 psig 0.10 gpm
50 psig 0.10 gpm
50 psig 0.10 gpm
TIME
12:03 pm
12:05 pm
12:10 pm
PRESSURE FLOW RATE
3Opsig 0.00 gpm
90 psig 0.L0 gpm
90 psig 0.10 gpm
Remarks: Some surging; test results may be inaccurate and inconclusive.
Pressure Test No. 2
Date:8/78/94
Elevation: 5580' GL Estimated
Total Depth: 155.0'
Gound Level to Gauge: 0.0'
Hole Diameter: 3.0" (0. L25')
Measured: L38.0' - \M.0'
Vertical: 106.3' - 110.9'
Test Interval:
Measured: 5.0'
Vertical:4.6'
Packer Pressure: 300 psig
Increase pressure to 60 psig
Well Number: GH-94-3
12:1.5 pm 90 psig
12:20 pm 90 psig
0.10 gpm
0.10 gpm
Remarks: Some surging; test results may be inaccurate and inconclusive.
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BORING LOG
Project: ul\iec Mcsa,Geo
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DESCRIPTION
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REMARKS
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DESCRIPTION
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REMARKS
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DESCFIIPTION
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REMARKS
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COIJSUL r''JG EHG'IJEEFS / [A IJD SUN YE YOHS
2t!fl tlwy 6 & 9O. Gttol Junctiot,. CO S \SOS . AJ?ZQ.S?O2
Septernber L4 t 1994
Fred Peel
10378 lJ. 77i.h ClrcleArveda, CO 80005
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RE: Rock core sample testLng, lJhlte Mesa Hlll Slte
Fred:
Enclosed are the aboye- test resulLs completed to dete. Theperneabilttv tests t ere runJn g"n".r1-iil.o.a"'r,." ritr,isrt{ D_5o8a_90 (lleasurement of Hvdraurlc- conductdiia{-;t- iiiufi."a porousHaterials Usl_ng a flextble Uelf rJr*u"Jel"rt. a soluilon of .OO5
iriiii,{ii,'i_"&f;+!u.i...*11"":"._:l-xi{,mlt:il#*:rr#lilbs,/sq ft, you wlLI'notl -tI"C speciruen Ht{ 22 e tJZ.3_137.8exlrlbited an exceptionslr.v !ig_t p"i'"."Gil+lI coefficrent. Thrsspec{men hsd a verl estabr.lsrrlE, ;i;;;;i-rrii"J-rTr',ii}u'nrng rhelength of the sauple teeted vhrch, it i, p.r"",rmed, controrred therare of f10n through the srgcinen',tu;aG -rhe te-s;. -Ii thr.s is a.reasdnabre assuuptron, u""6a on ,e"iuief,encs of the vrdth of theJoint, the Join[ tr"n"rrsJrvirv i;-;r-;i;ated ro be 3. sl x 1o-rcmr/sec se L^r
please call ne lf you have any questjons.
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Hvorslev's l\{ethod for Calculating Hydraulic Conductivity
Project Name: White Mesa Project No.:
Run Date:Client Name: Energy Fuels
User Name:Identification: WMMVV-20
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Test Type: 7 I to 7
Riser Pipe Diameter: 05562 feet
Intake Diam.: 05562 feet
Intake Length:
Water Table Depth:
Line Fit Starting No.:
14 feet
86 feet
1 Minlto
Line Fit Ending No.: 3 Max 3
Entrapped Air Correct. :N YorN
Specify Ourput Units: 7 1 to 9
K(h): - 5298-06-cm./sec.
Basic Time Lag (min.): 1384.76
Correlation Coefficient: 0.9652
1-i\
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0.00 2000.00 4000.00 6000.00 8000.00
Meas.
No.
Time
minutes
Field Meas.
feet
Drawdowry'up
feet
Line Fit To
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1)1.00 89.08 3.08 0.0000 0.1:_s t
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PEEL Environmental Services
Hvorslev's Method for Calculating Hydraulic Conductivity
Project Neme: @P_l4gs,Project No.:
Run Date:Client Name: Energy Fuels
Identification: ffi
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Attachment B
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INSTATLATION DATA
TABLE 9
WELLS 6-1 TIIROUGE 1O-1(1)
WELL
NI]MBER( 2 )
DEPTI{ ..A,.
TOP OF SCREEN
DEPTII "B"
APPROXIMATE
TOP OF'ROCK
DEPTII ''C''
BOTTOM OF
SCREEN
(FEET)(FEET) (FEET)
10.0
5.0
2.O
15.0
5.0
26.8
20 .8
21.0
30.0
31.3
5-1
7-L
8-1
9-1
10-1
(1)ror typlcal well
(2)rot plan locatLon
5.8
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1.0
10.0
11.3
lnstallatLon,
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PROJECT NAME
PROJECT NO.
BORING N0. /,.rO t-+
PIEZOMETER NO. AlO
BOREHOLE DRILLING
IEZOMETER DESCR!PTION
PROTECTION SYSTEM
PIEZOMETER INSTALLATION SHEET
€lt eP6',/4/c FIELD ENG./GEo.RSP-7 CHECKED BY
oare sl
DATE
DArE oF TNSTALLAT,o* C/ t / t ?go
CASING SIZE (S) USED: NO/VEsrzE_ FROM TO
srzE __- FRoM
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WAS THE PIEZOMETER FLUSHED AFTER INSTALLATION?
WAS A SENSITIVITY TEST PERFORMED ON THE PIEZOMETER2ti,tcl!.e.t.,87-E:r h.tl Lr /?t
RISER PIPE MATERIAL
RISER PIPE DIAMETERS:
1.5 |r.D. 4,o
LENGTH oF ptpE sEcloNS Jo tr
JotNtNG uentoo Ca uPt aR s p t J
OTHER PROTECTION* Loo-
ves E
ves fl
DRILLING METHOD rttrpW
DRTLLTNG FLuID(s-'_'-::'' N/hFLUTD_FRoM ,
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rYPE C4sec.FliuJe
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DTAMETER oF pERFoRATED sEcrtoN 4 ,, r_D
PERFORATION TYPE:
srors [J Holes f] scneer,r fl
AVERAGE slzE oF pERFoRATtoNs o. o 3 z_
ToTAL PERFoRATED AREA J,7M Cep 6:-sr7
RISER PROTECTIVE PIPE teNctn *2.s F{
PROTECTIVE PIPE O.D.
ITEM DtsrANcE neoVETBEtoT
GROUND STJRFACF faz-)ELEVATION()TOP OF ntsen ptpe D_<
GROUND SURFACE o.o
BOTTOM OF PROTECTIVE PIPE d,0
BOREHOLE FILL MATERIALS:
oRour/sr_uRRy
BENTONITE
SAND
GRAVEL
]
ToP 8a.n BorroM 7o.tr TOP BOTTOMroP 7o.6 BorroM 72. i TOP BOTTOM
BOTTOM
EOTTOM
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roP N /H BOTTOM TOP
roP a/h EOTTOM TOP
PERFORATED SECT'ON TOP qq <-BorroM /;fr, :TOP
PIEZOMETER TIP /Qn/ ic .:
BOTTOM OF BOREHOLE i rJ, :'
GWL AFTER INSTALLATION /i/,8
REMARKS
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CONSULTING ENGINEERS, INC.
November 1, 1982
Project No. Bl.f82-2039
Dr. C. E. Baker
Eaergy Fuels Nuclear, Iac.
Three Park Ceotral, Suite 900
1515 Arapahoe Street
Deuver, Colorado 80202
IJell 11, 12 aad 13 Inst.@!,
Deer Dr. Baker:
Grouod water ooaitoring l{e11s 11, 12 and 13 were inatalled donugradieat of
railings Cell 3 duriug October 20-25, 1982. Theae wells cougtitute the Cell 3
operatlonal phase grouud water uonitoriDg program requireEetrts aa givea ia the
-Secoud phase oesig; - Cell 3 Report (O'ltpolooia, Hay f981) aud rnodified in
ii"-i..t Dereiriou Systeo Evaluatiou Report (DtAppolooia, Deceuber 198f). The
welle were plauued rith the saue iastallatiou details as existing lJell 5.
Orders for well aaterials aod arraageEents for the drilliag contractor rrere
made by Energy Fuels aod iustallatiou of the wells was directed aod uoaitored
by D,Appolouia. I{ells 11 aud 12 are located ou Cell 3 Dike about 700 feec
"."c ""a 1OOO feet weet of Ilell 5, respectively. I{ell 13 ie located neat the
cegter of the previously propoaed Cell 4 Dike. Surveyed coordinates aud
elevatioos of lhese wella ale oot available 8t thig tiEe.
Drilling and loggiug of all three boreholes aEd the iastallatiou and
developneat of Welle ll aud 13 occurred betweea October 20 arid 22, 1982. Itre
instaliatiou details and brief subsurface degcriptious for Wella 11 and 13'are
giveo ou Figures I aud 3, respectively. Coopletioa of !"11 12 ras delayed
iotif gcrob-r 25, 1982 due to a lack of supplies. Cmpletiou details rere
specified by DtAppolouia prior to leaving the site ou October 22, 1982.
Cmpletiou nas piiterr"d by aill persoouel aad the details are givetr oa
Figure 2.
I{ith regard to rlater quality sampliag aud well longevity, the followiag
recorrErendaEioas are uade:
74OO SOUTH ALTON COUHT, ENGLET'OOD, CO 80112 TELEPHONE:[phone]'{ TELE(:45-.565
t a^ttlat rtaattet FA
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Bydrogeologist
e*;s NN-
Corrrio E. OldweiLer
Project Eagiueer
CEO:KMM: Par
E.R. Roberts, EuergY Fuels,
D.K. Sparling, EnergY?uels,
B .K. ?.eaveau, EuergY Fuel s t
(
Dr. G. E. Baker
o The well casing
materials froo
. or Plugging the
If you have anY questioas or
UBe
Very tru1Y Yours,
o Additional cleauing of the wells, prior to sampliug'
is recooperded; this should be doue by air liftiEg'to
avoid uudue near oB a puEp froro suspended solids iu
the water.
o A proteetive steel casing, similar to that arouod the
otirer rells should be iastalled oa each new well.
The steel casings Protect agaiust losiag the well''
should be capped to keeP foreigu
falliug in aud cotrtaEinatiag the water
well.
require additiooal iuformatioo, please
October 29, 1982
coatact
Denver
Blandiug
Blanding
GROUND
SURFACE
20.o'
70.o'
85.O'-
'g9.7'
90.?'
130.0'
130.4'
4,, O PVC SCHEDULE
40 PIPE
CEMENT GROUT
z7/8" O HOLE
BENTONITE SEAL
CEMENT BASKET AND SAND
DRILLED SCH.40 PvC PIPE lA"
HOLES, APPROXIMATELY 20
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ru%WW@W-@WWA
CONSULTING ENGINEERS, INC.
September 9, 1981
Project No. RM78-682-8
Dr. C.E. Baker
Energy Fuels Nuclear, Inc.
suire 900
Three Park Central
1515 Arapahoe
Denver, CO 80202
Dear Dr.
IMRODUCTION
In response Eo your reguest of June 4, 1981, DrAppolonia has reviewed the
water quality data from monitor wells installed around the tailings
retention rrla. fire purpose of this review and evaluation is to deter-
mine if the data indicate any degradation of the groundlrat,er quality
which could bd attributed to a leak from the tailings facility or any
other oi}I-related operation. Pre-operational baseline data and oPera-
tional data have been included in the review Process. Itre data have been
evaluated with regard to trends in select parameters and general overall
lrater quality variation with time.
This report is divided into two main sections ae follows:
o Evaluation of GroundwaEer Quality: Potential
DegradaEion of Sources - This section contains the
lrater quality evaluation of the existing local
groundwaEer. Data from the pre-oPerational and
operational wells were utilized'.
o Evaluation of llelL 7-2 Water Source - This section
evaluates the possible sources for the water
decected in Well 7-2. Data from the pre-oPera-
tional and operational phase wells and surface
lrater supplies were utilized.
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Letter RePort
1"""""r"ttffi.t Qt"liay
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wlilICe Mes.4ig@
PECEIYFD
srP 14 1981
Yl
TELEX: 45-456s
r atat tN6 Nlet ttrt
E( tz-
74OO SOUTH ALTON COURT, ENGLEWOOD, CO 80112 TELEPHONE: [phone]
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Dr.Baker 2 geptember 9, 1991
EVALUATION OF GROUNDT{ATER QUAIIIY:
POTENTIAL DEGMDATION AND SOURCES
Data Reviewed
AvailabIe data reviewed and evaluated consisted of pre-operational waterquality analyses fron l{ells 1, 2, 3, and 4 for october, Lg7g, and January
and April, 1980, and nonthly operatioual phase analyses from May 19g0,
through February, 1981. The pre-operetional sampling and raboratory
analyses were performed by DrAppolonia except for the radionuclide
Paremeters which were perfo:med by CDM Acculabs, Denver, Colorado (Octo-
ber, L979), and Eazen Research, Golden, colorado (January, April, 19go).
Monthly oPerational water quality data froo May 1980 through February
1981 was provided by Energy Fuels. Wells sampled during this period were
deep groundlrater monitoring wells \r 2r 3, 4r 5, and inte::mediate depthleak detection I{eIl 7-2. samples for this period were taken by EnerlyFuels personnel and the analyses performed by WAilCO Labs, Casper, Wyoning.During september, 1980, select samples were also analyzed by utAppolonia-for comparison purposes.
Indicator Parameters Selected for Evaluatiou
The water quality data was reviewed by selecting several parameters andplotting the values. for each well against time. The parameters selectedfor evaluaEion with explanations of the rational for their selectionfollow:
t-Sulfate, SOe : Sulfate is highly concentraEedin the tailings warer (35,000 ag/L) and tends to
move relatively rapidly and freely through the
subsurface at approxiuaEely the sarne rate as Ehegroundwater. As the sulfate fron tailings water
reacts with calcareoua soil, gypsum ( CaSO4. ZH1O)will precipitate, removing some of the sulfate
from the tailings rrater. Eowever, the increase insulfate concenEration will still be substantially
above background levels, thus indicating theprobability of a 1eak.
Chloride, Cl-: Chloride is concentrated in
the tailings water (2,200 rrg/l) and moves rhrough
the subsurface aE approxiuately the same rate as
the groundwater. Chloride is usually considered a
conservative species; that is, it does not reactwith the soil or groundwater. Thus, elevated
chloride levels usually indicate a leak of tail-
ings water. Eowever, the increase over backgroundlevels is not as dramatic as observed with sulfate.
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Dr.Baker September 9, 1981
Total Dissolved Solids, TDS: Ttris parameter is anindicator of gross water quality and elevatedvalues indicate an increase in dissolved ions inthe water. Typically, 60 percent of the dissolvedspecies in the tailings lrater are due Eo sulfate;therefore, an increase observed in TDS shouldindicate a corresponding increase in sulfate.
Sodium, Na+; Substantial concentrations ofsodiua exist in the railiugs water (61400 nd/l).As sodium is not very reactive io the subsollenviro.-entr increased concentrations,of sodium inthe groundwater may indicate a leaking tailings
ce11.
o pE: Ttris parameter is an indicator of the pos-sible change in water quality because of acidtailings seepage. As tailings rrater reacts withcalcareous soile, the pE is neutralized. Duringthe neutralization processr mEDI of the radiouu-clides (thorium, lead uranium, etc.) and the'heavy metals are co-precipitated with iron oxyhy-droxides. Ttrerefore, decreases in pH indicatesevere leakage and increased concentrations. ofradiouuclides aud heavy metals. Ttre acid front issubstantially attenuat'ed relative to the movementof the groundwater; therefore, increases insulfate and chloride will be observed much earrierthan decreases ia pE.
Radiur226, Ra-226: Ttris parameter is the mosruobile radionuclide and therefore is an indicatorof quality change. Ttre Dovenent of this elemenrin the subsurface environmenE is probably con-trolled by the solubility of radium sulfate.
Bicarbonate, HCOj: Due to the low pH ofthe tailings wacer, no bicarbonate/carbonate
ions are present. llowever, as the acid in thetailings nater reacts with the calcareous soil
carbon dioxide and bicarbonate ions are gener-ated. Therefore, elevated concentrations ofbicarbonate Bay indicate acid Ieakage. In-creases depend upon Ehe anount of calcite thatreacts; therefore, increases may be difficultto observe.
Qsf sirrn, Ca2+ : Like bicarbonaEe, calciumious result from reaction of Ehe acid in thetailings water with the calcite in the soi1. Somecalcium is present already in the tailings water.
Dr.
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In summary,
groundwater
groundwater
Baker September 9, 1981
Calciun is also removed by the precipitate of
gypsrrm. Overall, trends associated with calcir-rm
concentrations are difficult to interpret due to
Ehe variety of mechanisms occurring.
elevated concentrations of sulfate, chloride and rDS in theare probably the best indicators to evaluate a change inquality from an acid-type q;6nirrn mirl and taitings facility.
Evaluation of Indicator Parameters
Values for each of the above paraneters were plotted against time for
each rvell as shown in Figures 1 through 8. rn general, the data plotted
on these figures indicates a change from pre-operational to operational
phase values. The trend of this change is almost always an increase iuvalue. Ihis increase Bay not reflect an actual change in groundrraterquality, rather it nay be due to the differences in sampling procedures
and laboratory techniques.
Speci'fic items of importance observed for each of the indicator parame-ters are:
,-Sulfate, SO; , Figure 1 - The data for this
paraneter are relatively constant except for WeIl
3 which shows a gradual, but erratic increasing
trend. Wells 2 and 4 also appeer to have slighly
increasing concentrations. Well I eonsistently
has the lowest values for the deep wells. Eowever,
Well 7-2 has .lower values Ehan Well 1.
Chloride, C1-, Figure 2 - Ihe data for this
parameter are relatively variable with no particu-lar trend, except again for Well 3. Ttre chloride
cotrcentrations measured in Well 3 show a gradually
increasing trend with tine. Well 4 also appearsto have slightly increasing values. Wells I and
2 have sinilar concentrations wtrich are the lowest
observed. Well 7-2 }:.as substantially higher
values than the other wells.
Total dissolved solids, TDS, Figure 3 - This
pareneter indicates Erends similar to that
shown for sulfate. ConcenEracions in Well 3 are
gradually increasing with tine; concentrations in
Well I are Iow, wich WeIL 7-2 having sinilar, but
slightly lower values.
o Sodium, Na*, Figure 7 - The
parameter are constant with
ing trend noted in l{ells 2
the lowest values and Well
values for this
a very slighE iucreas-
and 3. Well 7-2 has
I Ehe next lowest.
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Dr.Baker September 9, 1981
o pH, Figure 5 - This paraneter is quite variablefor all wells bur typically fall within a range of
pH = 6.5 to 7.75. A slightly decreasing trend was
observed from Sept,ember 1980 through February
1981, with l{ell 3 having rhe lowesl value by aslight amount.
Radiur226, Ra-225, Figure 5 - This parameter isvariable, but no trends are observed. One veryhigh value for rlell 7-2 in July 1980 was reporied.
Eosever, the concentrations reEurned to a moretypical level the next month; therefore, the JuIy
1980 value is considered erroneous.
Bicarbonate, ECO5, Figure 7 - Ihis parameter
indicates no particular trend with WeIL 7-Z havingthe lowest values; I{ell 1, the next lowest, and
Ehe other we1ls grouped together rsith higher butsinilar values. A high value nas reported forI{el1s 2, 3 and 5 ia September 1980, but Ehe valuesLent beck dorrrr
5
in the subsequent monthsr analysis.
o Calcir:m, CaZ+, Figure 8
an increasing trend for
tively wide variation in
I{e1ls 3 and 4 having the
- This parameter shows
Wells 2 ar.d 3. A rela-
values is observed, with
highest concentrations.
The data plotted on the figures for several wells indicate increasingtrends for certain parameters. To determine whether the increase wasstatistically significant, studentrs 'tt test lras used. Ttre hypothesisthat the mean of the pre-operational concentrations is equal to che meanof the operational concentrations was tested at the 99 percent leveI.This level of significance means that the confidenc" o""d"d to statethere was indication of degradation uust be high. such a level isjustified because it should help screen out extraneous variability due tosanpling methods or fluctuations in other variables. Ttre nethodology
used is in accordance with the monitoring and evaluation techniquesrequired by the Resource Conservation and Recovery .g.ct (nCnA)(4O C.F.R.
265 .9) .
The surfate, chloride and rDS concentraEions in well Lr z, 3 and 4 wereevaluaEed. In all cases, the means of pre-operational-.r,i op"rationalconcentrations were not statistically different at the 99 p.r""ot confi-dence level. Iloveveilat Ehe 95 pertent confidence level, the means of
TDS and chloride in werl 3 were statistically different. rn facE,chloride concentrations in Well 3 were almost differenE at the 99 percentlevel. Ttre main reason the means are not different is due Eo the 1arg.variance (standard deviation) in the Eeans. For example, in well 4, tr,.sulfate concentratioos were as follows:
+ 44L+ 102
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Baker
o Pre-operational
o Operational
6
L,673
L,92L
September 9, 1981
ng/1
Bg/L
These values yielded a tt'of 1.0 wtrile the criteria'tt at 99 percent is9.9. Therefore, the hypothesis Ehat Ehe means are equal is rejected. Inother words, the large variability in the analyses makes it difficult Eo
conclude that the means of fhe two populations are different. If Ehevariability (as measured by the standard deviation) was smaller, differ-
ences in the means between the pre-operational and operational data would
be easier to detect.
If the increasing trend is due to Eailings water leakage, it should notbe observed in the upgradient l{ell 1. However, the meau of the opera-tional sulfate concentrations in I{elI 1 increases 47 percent over the
mean of the pre-operational concentrations. Ttre mean of the sulfate
coucpntration iu l{ell 3 increased 70 percent. Therefore, trost of the
apparent iacrease observed in well 3 can be attributed to natural
increases in background. Ttre increase in wel1 3 appears to be more
drarnatic because the pre-operational concentrations are significaatly
higher than those in Well 1. Eowever, as shorlrr, the percentage incrlaseis sinilar in the two wells. In fact, the concentratiou of. such species
as calciur" and sulfate increased substantially during pre-operationalsampling. If this increaae lraa projected into Ehe operational period,
the actual values measured during operatioaal sampling would aciually beless than or similar to the trend predicted from the pre-operationaldata. Furthetmore, iu most instances, the constant increase is no longer
observed and concentrations have fairly weIl stabilized over the past 5to 8 nonths. Ttris observation is significant and indicates that theIraters in the wells are trow in equilibrium with their surrounding rock.
Conc lus ions
Conclusions from the available data and analyses discussed above are:
o No trends are present wtrich would indicate
a failure of the liner system in Cell 2. Ttre
lrater quality values shown on Figures 1 through 8
do not indicate any contsmination occurriag from
the operation of the Eailings cell.
The changes and trends which have been noted and
discussed above are not considered significant
enough to indicate a leak from the tailings cell.
o Statistical analyses also indicaEes Ehat there are
no differences in Ehe Eeans between the operation-al and pre-operational data. However, the mean of
the chloride concentrations in Well 3 during
operations may be slightly higher than rhe pre-
operational mean (at the 95 percent confidence
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Dr.Baker SepEember 9, 1981
level). If increased levels of chloride occur in
Well 3, increases in chloride concentrations
should also be noted at I{elI 7-2 and 5. Wells 7-2
and 5 both have higher chloride concentrations
Ehan the other welIs indicating the possiblity of
degradation from sone source. However, if the
source was Cell 2, increased sulfate concentra-
tions should be observed in l{e11s 7-2, 5 and 3.
As previously stated, the sulfate increase in l{ell
3 is not statisrically significant and Wells 5 and
7-2 have Iow sulfate concentrations. This iudicates
that Cell 2 is probably not leaking to any detect-
able degree and that the increased levels of
chloride obaerved are probably fron another
source. Possiblities for this source are dis-
cussed later.
o Well 3 is reflecting some chauge in groundwater
quality which is not being reflected by the
upgradient baseline Well 1. The groundwater
quality change io I{elI 3 could be the result
of several causes oEher than an actual change in
the water quality. One of these causes is reflected
in the fact that when Well 3 was drilled and
completed in September, 1979 it was dry and required
several days before a rrater leve1 was detected.
Itris is indicative ef a low pemeability material
with low productivity. Lower permeable aquifers
typically coutaiu elevated concentrations of
dissolved species due to the longer contact time
and more surface area of aquifer materials. Water
quality paraneters could also be increasing in this
well if water is being concentrated and fornation
water is not being iatroduced. Well 3 could also
be reflecting the effect of the different \rater
source decected in l{ell 7-2; however, the increas-
ing sulfate values in Well 3 are inconsistent with
the 1o!, sulfate values in Well 7-2. Also, Well 5
(down gradient fron Well 7-2) does not reflect
change in water quality with time. Thereforer.
is concluded that the waEer quality parameters
being detecEed in Well 3 may be unrepresentative
of the actual groundwaEer quality and that reuedial
work on Well 3 should be performed.
o Defective sanples or analyses were probably obtained
for the September 1980 period.
The possibility of a differenE contaminant source detected in Well 7-2 is
discussed in detail in the following section.
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Dr. C.E . Baker 8
EVAIUATION OF I'IELL 7.2 WATER SOURCE
September 9, 198f
Potential Water Sources
Water was reported by Energy Fuels in I{elL 7-2 in June 1980. Well 7-2 is
one of five inte:nediate depth wells completed at a depth of 50 to 60
feet (30 to 40 feet above Ehe Iocal water table). Ttre purpose of the
inEe:mediate depth wells is detection of a leak frou the tailings cell.l{ater should not be detected in these wells unless a change in the
groundwater model for the site occurs or a nen source of water is devel-oped. To determine if the water detected in Well 7-2 vas related to thetailings cell or niI1 operations, arr assessment of the possible sources
of this ltater was made. Itre results of this assessnent are discussed inthe following sections.
Two categories of potential water sources for the water were evaluated as
fo 1 lows :
Natural Groundwater
- Local groundwater systen
- Nes source of groundweter recharge, i.e.,
irrigation water or construction weEer ponded
oa-s ite
o MilI or Tailings Related
- Tailings Cell 2
- Mill sedimentation pond
- Uill process circuit
Natural Groundwater Source Evaluation
Faci lities
(Baker's Lake)
The natural groundwater source was evaluated by comparing the measured
water level in Well 7-2 vrith the level predicted iu the local groundwater
model (discussed in Engineerts Report, Tailings Management SysteE, June7979). TLre prediction indicates that the local water table is about 40
feet below the level of water in WeIL 7-2. Forty feet is greater than a
normal fluctuation in the leve1 of the lrater table due to seasonal varia-tions in precipitation. Therefore, this physical interpretation indi-
cates Ehat the water in WelL 7-2 is from another source. A new poEential
groundwater source is unlikely because of Ehe long-term existence of the
rrater (8 nonths) wtricfr is not consistent with seasonal (irrigation) or
intermittent (construction-relaced) sources. No other new sources were
ident ified.
Water quality couparisons between WelL 7-2 and baseline, I{eIl l, were
also made as discussed under the previous section. Tlris conparison
indicates that the water in WelL 7-2 is different Ehan the local ground-
water. In general, the local groundwater has greater eoncenErations of
the najor ions (bicarbonate, sulfate, magnesium, sodium and total dis-
solved solids). However, the concentraEions of chloride, nitraEe and
uraninm are greater in HeLL 7-2.
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Dr.Baker September 9, 1981
A comparison of lrater fron Well 7-2 vas made with Well 5 which is closestto Well 7-2 geographically aud located donngradient from Well 7-2 withresPect to the flow of groundwater. This comparison is shown in Table 1and is based upon calculating the mean value for a population of values
from several analyses. The value is reported as Ehe mean with a standarddeviation of 2 sigrna. This type of statistical evaluation is used to
emphasize differences between populations raEher than precision of analyses.Although a large value of staudard deviation relative Lo a meag rBay
rePresent lack of analytical precision, it also reflects variation in theconcentration of a Parameter with respect to Eime. Lack of overlap in therange defined by the sEandard deviations indicator may be interpreted asvalues wtrich belong to different populations. This hypothesis can betested using Studentrs rrttr test as previously described. Ilowever, thegeneral conclusions cau be rnade without Ehe test.
In Table 1, it is observed that the concenErations of sodium, sulfate,bicarbonate, fluoride, alkalinity, and total dissolved solids, as welI asthe specific conductance, ere greater in l{ell 5 than in well i-2. rheconcentrations of chloride, fluoride, nitrate, and urauir.rm are greater inveLL 7-2. concentrations of ocher paraueters, such as pH, calcl,-,potassium, and maguesium are essentially the same in the iwo werls.Additionally, the concentration of radiur226 utas subsEantially greaterin Well 7-2 in July; however, in subsequent analyses, the concentration
decreased to background levels.
The differences in concentrations of najor constituents fron the statis-tical analysis between wells 7-2 and 7-5, however, are rarge enough tosuggest that the Isater in Well 7-2 is from a source other than regionalgroundwater.
Mi11 Tailings Related Source Evaluation
The potential of a local source from the tailings or within the nill sitewas also considered. The potenEial sources evaluated included tailingsCell 2, the nilI sedimentation pond (Baker's Lake), and other nill ciicuitsources. Detemination of the Eost likeIy source was made by conparingthe water in WeIL 7-2 with waters fron Cell 2 and fron the ,itt rlair".rt"-tion pond.
water was collected from ceLr 2, the sedimentation pond, and well l-2 by
Energy Fuels in september 1980 and samples sent to D'Appolonia foranalysis. Splits from the sedimentation pond and Well 7-2 sanples lrerealso sent to I{AMCO by Energy Fuels for analysis. The results of Ehese
analyses are presented in Table 2. A discussion of Ehe comparison
between the results from the Ewo laboraEories is presented later.
The most obvious aspect in the comparison of the waEer quality frou thethree sources is that concentrations of most conponents in rfeLL 7-2 areconsiderably lower, by one to Ewo orders of magnitude, than correspondingparaaeters in either CeII 2 or the sedimentation pond.
10
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Dr. C.E . Baker September 9, 1981
The water in tailings CelI 2 is a characteristically acidic soluEion
containing very high levels of sulfate from the sulfuric acid used in the
leaching process. IE contains high leve1s of sodiun and chloride which
are derived from sodium chlorate (NaCtO4) and sodium chloride (Uact) in
the acid leach process. Nitrate is present in tailings Cell 2 in rela-
tively moderate amounts; however, the source of this nitrate is not
readily apparent. Some acid leach processes use amooium nitraEe
(tlu4No3) in the solvent extraction circuit. Another source for nitraEe
may be in the oxidation of rhe amonium ion during the drying of the
yellowcake and subseguenE collection in Ehe fly ash. The presence of
nitrogen oxidizing bacteria ia the tailings ceIl could produce nitraEes,
but such a species would need to be extremely tolerant to highly acidic,
sal.ine solutions. It is not like1y that amuonia can oxidize readily in
the tailings cell aE the given conditions of pII and Eh.
Ihe nill sedimentation pond (Baker Lake) is an unlined collection pond
located in the southwest corner of che niIl and facilities area and
imediately north of tailings CelI 2. Ihe purpose of this pond is Eo
collect and retain sediment and runoff water from the facilities area.
The pond should be dry except after a precipiEatioo event while evapora-
tion of the runoff occurs. Water has been reported in Ehe sedimentation
pond since June, 1980. The source of this waEer is reported to be from
runoff, nill processes, and start-up-type operations.
Concentrations of parameters in the sedimentation pond are generally an
order of nagnitude lower Ehan in tailings Cell 2. Ttre water is basically
sulfate-rich with moderate concentrations of chloride, sodiu-, calci'-,
and magnesium. (NitraEe concenErations are not elevated above values
which are generally considered haruful to plants and animats.) The
solution is acidic, alchough not to the same degree as tailings Gell
2. Neither the sedimentation pond nor tailings CeIl 2 contain detectable
Emounts of bicarbonate ion, and consequently, the waters have no Eeasur-
able alkalinity.
In evaluating either one of these surface wat,ers as the source of water
in Well 7-2, it is apparent that Ehe conceutrations of the major conpon-
ents are considerably different so that identification of Ehe likely
source should be possible. However, waEer in Well 7-2 is not as concen-
traEed as either CeIl 2 or the sedimentation pond source with respect to
some parameters (sulfate, chloride, sodium, magnesium, potassium, arr-onia,
radionuclides, acidity), and is more concenErated with respecE to others(bicarbonate, calcium, nitrate, alkalinity).
As previously discussed, the natural buffering capacity of the soils,
which is due Eo calcium carbonate, can neutralize acid in the leachaEe
and elevate the pH. This neutralization reaction causes an increase in
the concentrations of calcinm and bicarbonate in the groundwater and a
decrease in heavy metal and radionuclide concentrat.ions.
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Dr.Baker September 9, 1981
Because WeLL 7-2 is near both tailings Cell 2 and the sedimentation
pond, it was expected that Ehe concentrations of najor constituents
should be very sinilar Eo those in the source. Chenical reactions, such
as precipitation and adsorption, act to alter the chemistry of a rrater asit moves through soil or bedrock, and such a mechanism will influence the
differences in compositions beEween the well and the surface ponds.
However, one notable exception to these processes is chloride which foms
eaiily soluble salts. Hence, it is not renoved from groundwater by
precipitation or adsorbed by oost geological uaterials. Chloride ions
are considered to move at the sane rate as Ehe groundwater, and Ehere-
fore, are.considered to be a good tracer. Although sulfaEe is not
stroirgly adsorbed by soils either, it is preferred over chloride in some
cases of adsorption, and it can be pr'ecipitated as gypsllu wtren the
solubility product is exceeded.
Chloride concentratious in Well 7-2 remaLned relatively constent, varying
fron 83 to 99 rng/I fron July, 1980 through February 1981 (figure 2). Ttre
chloride concentrations in Ehe sedimentation pond and tailings CelI 2
were recorded as 250 ute/L and 2,20O rrg/l resepctively (fable 2). Allorn
ing for some dilutioo, the concentraEion of chloride in Well 7-2 best
reflects that found in the sedimentation pond. Concentrations of all
other coustitueats in WeLL 7-2 are likewise more sinilar to the sedi-
mentation pond than tailings Cell 2. If water was seeping from a leak in
the tailiags ce11, greater coucentrations would be expected in Ehe
we 11.
Comparison of Laboratories
As previously mentioned, splits of samples from llelL 7-2 and the sedimen6a-
tion pond were Eaken in September, 1980, and analyzed by DtAppoloniars
lrater quality lab and WAII{CO Labs. Table 2 presents Ehe results from
DrAppolonia and WAI'{CO }aboratories for Well 7-2 and the nill sedimenta-
tion pond for comparison. Overall, the results from the two laboratories
are very similar with the following exceptions:
o Anmonia ueasured by WAltCO in the sedimentation
pond is extremely high.
o Concentrations of radionuclides neasured by
DrAppolouia were subsEantially higher than Ehe
values measured by WAMCO.
These high values reported by the respective laboraEories are probably in
error and are being checked by the laboratories. Besides these few
pareneters, the agreemenc is typically excellent. Therefore, the increas-
ing trend observed between pre-operational and operational data probably
cannot be attributed to differences in laboratories. Some differences ruay
be attributed to changes in sanpling techniques and personnel. However,
these are also probably smal1.
t2Dr.
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Baker September 9, I981
Other Considerat:.ons
Dilution of the groundwater has been mentioned as a reason for lower
concenErations in the well. One possible source for mixing of waEers
could be water fron the septic leach field. Other possibilities are
water from irrigation of sod at the facilities, and construcEion-related
sources. Both conditions could cause waEer to iutercept Ehe water from
the sedimentation pond at a point upgradient from rteLl 7-2; however, such
occurrences are speculative and would be difficult to verify.
One item which has been investigated closely is the trend of nitrate in
the well frorn JuIy to September, 1980. Ttre source of the elevaEed
concentration of nitrate (100 mg/l) in July, 1980, has been difficult to
identify because no lraters uhich could be sources were found to contain
comparable levels of aitrate. In a conversation with Jin Gallagher of
WAIICO Labs in Casper, Wyouiug, reasouable doubt vas raised concerning Ehe
validity of this analysis. Mr. Gallagher suggested that a sample may
have been collected for nitrate analysis with a bottle previously acidi-
fied with nitric acid. Other possible sources of nitrate could be from
septic sludge or fertilLzer. Howeverr the existence of such sources is
not knorm.
Couc lus ions
Based on the preceding discussion, the most likely source of water in
Well 7-2 is the sedimentation pond. Ttris conclusion is supported by the
following facts:
o l{ater in Well 7-2 is not similar to local ground-
water quality or elevation.
o l{ater ia Well .7-2 is closer in chemical composi-
tion to lrater from the sedimentation pond than to
lreter in tailings Cell 2.
Chemical concentrations of some key components'
such as chloride, should be sinilar in both
Wetl 7-2 and its source. Ttre concenEration of
chloride and sulfate is far too small in the well
for tailings CeII 2 to be Ehe source.
The sedimentaion pond is directly upgradient from
WeLL 7-2. Ttre tailings cel1 lies beEween Ehe well
and the pond, and it is lined with an imperneable
seal. The sedimentation pond is noE lined and
water can percolate into the subsurface where it
could flow beneeth the imperneable seal of the
tai.Iings and intercept Well 7-2 at depEh.
Changes in chemical composition between the
sedimentation pond and Ehe well water are attri-
buted to chemical interactions between Ehe ground-
rraEer and the geological material through which it
Dr. C.E. Baker September 9, 1981
o Changes in chemical composition between the
sedimentationpondandthewellwaEerareattri-
buted to chenical interactions between the ground-
water and the geological material through which it
flows.Dilutioultraychangethelevelsofconcen-
trations by nixing of two waEers, but another
sourceofwaterinthei'',mediatesubsurfacehas
not been verified.
OVERATL SI]UMARY AND CONCLUSIONS
Groundwater lrater quality data from Pre-oPerational and operational
(through February fggr) pur""" have been reviewed- No indication of
loca1 lroundwater degradatiou attributable to Ehe miIl or tailiugs
"p.i"alo" is evident from these data. Indications of a change in water
quality in well 3 are coasidered to possibly be the result of poor !'ater
;;;i;'to wetr g. Eowever, the consistency of the conceatratioas measured
r""Loiry nay indicate that static conditions have been achieved'
The possible sources of water in l{ell 7-2 vere also evaluaEed' ResulEs
of ttre evaluaEion indicates that the most likely source-is the sedimenta-
ai""--pr"a-a;;k.r Lake). rtre basis for this conclusion is the comparison
oi r"i", quality data and the elinination of oEher known possible sources.
ii" *"a"r'qualily comparison for rtell 7-2 and the sedimentation pond as
detector and sourc., i""p..tively, is not exact and olher unknonn sources
iay U. contributing or causing tire detection occurrence of water in l{el1
7-2.
If you have any questions or wish to discuss any of Ehese items, please
contact us.
Very truly Yours '
13
e*s-E-ONNN*
Corwin E. Oldweiler
Project Engineer
rGy'fe4
Roger L. Olsen
Project Geochemist
CEO:RLO:klg
cc: II.R. Roberts,
D.K. Sparling,
Energy Fuels
Energy Fuels
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.T'ABLE 1
QUALTIY PARAUETER CO}PARTSoN
uELL 7-2 and I,IELL 5(1)
I
PARAMETER
7-2(2)
- SEPT 1980
lrErl 5(3)
MAY 1980 - SEPT 198(JULY I98O
Specific Conductance
lkalinity
ardness
oEal Dissolved
o lids
Standard Units
micromhos / crrF-Z1" C
ngll as CaC03
ng/l as CaCO3
Solids
ry/1
7 .54r.L7
138 91137
168133
600t63
11 12t139
7 .60t .14
2480!L26
375t1 14
601t48
2228!L26
tue/L
tr,e/t
rls/L
rig/L
rylL
wlL
Eg/1
rylr
rylL
rylL
re/ t
99i8
150t7
t0t4
49111
8915
502!48
205!40
oto
0.511.21
39153
24!L9
468!24
L62!L7
I8t4
4815
57!4
1140tt2o
460t140
oto
0.29t.08
-otG)
B.stt.s(5)
by WA}ICO Lab of CasPer, WYoming'
Eeans with sEandard deviaEions for
means with sEandard deviaEions for
a population of three
a population of five
(4)6o"t"re of two values.
(5 )ygan deteruined for four values.
t
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ffiil::::
j;:::::".."
Carbonate
$r,ro'ia"
Nitrate
]t""i.-
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alcir:m..
oEassiun
(1 )fura1rses rrere perforned
(2)ys1,rst are statistical
data sets.
(3)ysluss are statistical
data sets.
Sodium
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TASLE 2
WATER QUALITY PARA},TETER
WELL 7-2
6src,&1g9N( l)
MITL SITE
SEDI]'{ENTATION POND TAILINGS
(nAxrn's LAKE) sg11 2(3)
PARAMETER UNITS 1iQ)s(3)1(2)n(3)
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pH
Specific Conductance
Acidity
Total Alkalinity
Bicarbonate
Carbonate
Chloride
Nitrate
Amouia
Total Phosphate
Sulfate
TotaL Dissolved Solids
Metals
Iil"euic
Calcirn
Magaesirn
Potass ir.m
Soditu
Uranium
Radiouuc 1 ides
ros;=Efra
Gross beta
Ra-225
Calculated Valuescacronil
Anions
s.u.
umhos/cu
ng/I caCo3
EC/l CaC03
ECll HC03
ngll Co3
trlh/L
ECll NO3-N
nglt xu3-n
ESll PO4-P
uiglL
BgllG180'C
BE/L
4/t
rrg/L
mg/L
trl9/L
Bg/L
pci/t
pci/L
pcilL
oeq/1
neq/1
Percent
7 .56
t454
190
232
0
83
8
rfl)
3.7
538
121 I
s.6e4(4)
164
59
9
101
20
3.4
1.8
0.2
t7 .65
17 .33
0.91
5 .50
1400
<2
175
2L4
0
77
L2
2.2
5.75
250
1 150
0.026
155
44
4
94
28
57.4
7.4
0.23
L5.54
11.07
-16.8
4.46
2650
L4
17
0
270
2
115
0.72
I 108
228t
s. ss2(4)
212
100
33
250
49
22.0
55 .0
3.6
30.52
30.94
-0. 68
4.00
3700
38
0
0
0
250
3.5
0. 16
0.56
1300
2r40
0.r74
t45
72
77
190
18
1 ,700
444.0
2.t
2t.85
34. 15
2L.9
I.10
87000
3800
0
0
0
2200
24
3.0
160 .
35000
58100
35 .8
90
1800
405
1400
87
114,000
74.0
180
223.7
790.4
55 .9Cat ions-Anions
c;EG'Es+ffion6 x 100
ND = Not Detected
I (1)61s1r5is for samples Eaken on Septeruber 19, 1980; all parameters are dissolved unless
othenvise indicated.
I ( 2) laslysgs perf ormed by WAI'ICO Labs ; llelL 7 -2 dat ed Oc tober 21 , 1981 , WAMCO No. 1903;r Baker Lake, dated October 13, 1980, WAMCO No. 1907.
f
(3)4ns1ysss perforoed by D'Appolonia water laboratory.
f .-,ToEai anaiysrs.
I
I q/Ls w^^%wruw@ww,
)
et,
=
trlFfl
q,
LEGEND:
---+-- WELL
-.+- WELL
--+-- WELL
+ WELL
--o-- WELL
-...-x-.- WELL
I
?
3
4
E
7-2
MONTHS/ YEAR
FIGURE I
CHANGES IN
SULFATE COiICENTRATION
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVEd, COLORADOI
I E):qJ,ED()r{}rvLl,.
OPERATIONALPREOPERATIONAL
/ ./',
{.'
\.- ,'d'v ,l\l\t-:-o
-o
--\,'
-/o
I
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tr .A
tu'n t '"
?
i\
.)
JJ
I 980
tr,,
=
lrto
TEo
(J
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_IEGEND:
---+--- WELL I
-+- WELL 2
--+-- WELL 3
* WELL 4
-+- WELL 5
--.-x-.- WELL 7-2
.MONTHS/ YEAR FIGURE 2
CHANGES IN
CHLORIDE CONCENTMTION
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVER, COLORADO
E}:Itr'T{>I{-'NLq,.
I
/"^"'
{I
n
\
t
./''
t-44-
3
c,,
=ao
=8
a
a
8
@o
FoF
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MONTHS/ YEAR FIGURE 3
CHANGEi IN
TOTAL DISSOLVED SOLIDS
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVER, COLORAOO
LEGEND:
---o.--- WELL r
4'- WELL 2
--+-- WELL 3
# WELL 4
-+- WELL 5
IYELL 7.2
ilD.^\.yPL\DIA}Iq{L}.
)
o
=
=
6ov,
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MONTHS/ YEAR FIGURE 4
CHANGES IN
SOOIUl{ CONCENTRATION
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVER, COLORADO
LEGEND:
---+--- WELL I
-.+.- WELL 2
--#- UELL 5
+ wELl /r
WELL 5
--.-x-.- WELL 7-2
/
n---T f..*-.r-x.*.-ht*x
/
I
**o
ilD.^LEry\D\ADIdLq.
I
)/,
/
I
I
J-_
\
\
'It
\
\
At'
fr
V/
\'l
\
I
\t
u
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t
MONTHS/ YEAR FIGURE 5
CHANGES IN
pH
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVER, COLORADO
LEGEND:
---{>-- WELL I
-.+- WELL 2
---6--- WELL 3
# WELL 4
-+- WELL 5
WELL 7.2
Eb.^\M*\DilI)NE.I.
OPERATIONAL
J
oe
(o
NN
I
==6
TE
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MONTHS/ YEAR FIGURE 6
CHANGES IN
RADIT.IM - 26 CONCENTRATION
PREPARED FOR
ENERGY FUELS NUCI-EAR, lNC.
DENVER, COLORAOO
}EGEND;
---o-- WELL I
--,o-- WELL 2
-.+.- UELL 3
'* UELL' 4
-+- WELL 5
WELL 7.2
ED.^LLDilE,{,DIA}hILq.
I
I
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I
t
VA
PHAsE l- | enase
A.i..t' Y
F
OPERATIONAL
=of2-fi
lrlF
zo(D
E,
o
@
I-EGEND:
---+-- WELL I
-+- WELL 2
--#: w€LL 3
# WELL 4
--o-- WELL 5
WELL 7'2
MONTHS/ YEAR FIGURE 7
CHANGES IN
BICARBOIIIATE CONCENTRATION
PREPARED FOR
ENERGY FUELS NUCLEAR, INC.
DENVER, COLORADO
EDiLPITD,{,bI I-DRf E. q.
Attachment G
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H. R.
D. K.
Robert s
Sparl ing
T4ooSoUTHALToNcoUBT,ENGLEWooo'cosoll2TELEPHoNE:[phone]
HOUSTON, TXCHICAGO, ILBECKLEY, WV . CHESTERTON, IN
PITTSBURGH, PA WILMINGTON' NC
T).A]IDID(DILONfA
CONSULTING ENGINEEBS, INC.
September 28, 1981
Proj ect
Dr. C. E. Baker
Energy Fuels Nuclear, Inc,
1515 AraPahoe Street
Three Park Central, Suite 900
Denver, Colorado 80202
Dear Ed:
Attached is a corrected copy of Table 2 from
ment of Groundwater Quality, dated September
gio"" beta values for the sedimentation pond
have been made.
If you have any guestions, please call me'
ffi-d\\-
Corwin E. Oldweiler
Project Engineer
CE0: par
Enclosure
x/!.1 4t4G6UO
our Letter RePorE, Assess-
g, 1981. Corrections in the
and tailings Cell 2 analYses
TELEX:45-4565
LAGUNA NIGUEL, CA
SEOUL, KOREA
No. RI'178-6828
RECEIYED
OcI 5 le8t
6D)W.
HRK'du+
-Ft/u
BflUSSELS. BELGIUM
TAILINGS
CELL 2(3)
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TABLE 2
WATER QUALITY PARAMETER
WELL 7-2
UNITS A(2)B(3)
6gr"tr 1p1g6N( I )
MILL SITE
SEDI}MNTATION POND
(rAxnn's LAKE)
t(2)n(3)PARA},IETERI
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pH
Specific Conductance
Acidity
Total Alkalinity
Bicarbonate
Carbonate
Chloride
NiErate
Ammonia
Total Phosphate
Sul fate
Total Dissolved Solids
Metalsffi-ic
Calcirm
Magnes irn
Pot as s ir:m
Sodirn
Uranium
Rad ionuc 1 ides
crossAt6-a--
Gross beta
Ra-226
Calculated Values
s.u.
umtros/cm
ngl1 caco3
ag/L CaCo3
mgl I ttco3
ngll Co3
E'c/L
rngl1 No3-ll
ngl1 NH3-ll
ag/L Yo4-e
rrr,glL
ECl lG I 80" C
ng/L
BC/L
uig/L
r,g/L
uig/l
r,g/L
pci/L
pci/t
pcL/L
meq/1
aeq/L
Percent
7 .56
t454
190
232
0
83
8
ND
3.7
538
I21 I
s. ss4(4)
t64
59
9
101
20
3.4
1.8
0.2
17 .65
17.33
0. 91
6.60
I400
<2
t75
214
0
77
t2
2.2
5.75
250
1150
o.025
155
44
4
94
28
57.4
7.4
0.23
L5.54
11.07
-16 .8
4.46
265A
L4
t7
0
270
2
116
0.72
I 108
228L
s. es2(4)
212
100
33
250
49
22.0
55.0
3.5
30.52
30.94
-0.68
4.00
3700
38
0
0
0
250
3.5
0.16
0 .56
I3 00
2L40
0.L74
145
72
t7
190
18
1 ,700
444.0
2.L
2L.85
34.L5
2L.9
1.10
87000
3800
0
0
0
2200
24
3.0
160
35000
58100
35 .8
90
1800
405
1400
87
1 14 ,000
74.0
180
223.7
790.4
55 .9
catf ons--
I Anions
Cat ions-Anions
EaTfonffiIons'x 100
ND = Not Detected
(1)4r.,s1r"i, for samples taken on September 19, 1980; all paraneters are dissolved unless
otherwise indicated.
(2)tu.s1yses performed by wAMco Labs; WeLL 7-2 dated october 21, 1981, WAI'ICO No. 1903;
Bakei Lake, dated October 13, 1980, WAMCO No. L907 '
(3)6n31yses performed by D'Appotonia water laboratory.
(4)1egs1 analysis.
Attachment H
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I BECKLEY, WV
PITTSBURGH, PA
.CHESTERTON, IN HOUSTON, TX
TELEX: 45-4565
LAGUNA NIGUEL. CA
SEOUL. KOREA
CHICAGO, IL
W'"AWW@W-ryWIA
CONSULTING ENGINEERS, INC.
Noveober 30, 1981
Project No. RM78-682-c
Dr. C.E. Baker
Energy Fuels Nuclear, Inc.
Suite 900
Three Park Central
1515 Arapahoe
Denver, C0 80202
Letter Report
Groundwater Monitoring Prograu Assessnent
Dear Dr. Baker:
INTRODUCTION
The operational phase groundwater monitoring program requiremenEs for the
Wtrite Mesa Uraniurn Project have been assessed and a recommended program
developed. The recomuended program is a revision of the existing opera-
tional phase progran. The work has been conducted in accordance riEh the
scope of work outlined in our letter dated October 5, 1981.
The recommended operational phase monitoring progrea has been developed to
neet Criterion 7, Appendix A, CFR Part 40. Specifically the proposed
groundwater monitoring progran will enable evaluation of coopliance
with applicable standards, performance of control sysEerns and procedures,
evaluation of environmental inpacts and detecEion of potential long-term
ef fects.
The proposed program is based on a couparison of the chemicals occurring
in the tailings liquid and Ehe chemicals naEurally occurring in the
groundwater aE Ehe Wtrite Mesa Project. In addition, geochemical processes
and reactions which would occur if tailings liquid seeped through Ehe
subsErata, rrere applied Eo Ehe results of the above comparison Eo determine
which chemicals and oEher parameters should be most effecEed and changes
in water quality observed. These chemicals and parameters were selected
Eo accurately detect changes in che groundwater quality due to leakage of
tailings liquid. Other studies have shown Ehat for the White Mesa siEe,
the length of tine required for the saEuration front frou leakage to reach
the groundrrater table is large and when other facEors such as dilution,
dispersion, and geochemical reactions are considered, the potential for
detecting leaks from the tailings cel1 during Ehe life of Ehe facility is
sual1 .
7400 sourH ALToN couHT, ENGLEWooD, co 80112 TELEPHoNE: oog/271-3464
White Mesa Proiect
WILMINGTON, NC ERUSSELS, BELGIUM
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Dr.Baker November 30, 198i
The following sections of this leEter report Present the assessnenEs
conducEed for Ehe natural ground$/aEer, geochemical processes, recoouended
moniEoring progratr, and recommended sampling and quality control meEhods.
COMPARISON OF TAILINGS LIQUID
Comparison of the coutposition of the tailings liquid and the groundwaEer
is necessary when developing a raEionale for a groundwaEer monitoring
progr;rm because the cornparison identifies which chemicals are not found or
are much less concentrated in Ehe natural groundwater.
The chenical composition of the tailings tiquid and natural groundwater is
given on Tabte l. Values given on Table I show that there are subsEan-
tial differences between Ehe tailings liquid and groundwater for many
paraneters including:
o pII
o Chloride
o -SuIfaEe
o Aluminum
o Arsenic
o Caduiuu
o Calcium
o Chromium
o Copper
o Iron
o Magnesium
o Manganese
o S odiuru
o Vanadiuu
o Zinc
o Gross Alpha
o Gross BeEa
o Lead-210
o Poloniun-210
o Radiuu-225
o Thorium-230
o Uranium
Ilowever, it is not considered appropriate to Eeasure each of these Para-
treEers on a routine basis because some chemicats tend to tnove together and
so6e chemicals rrill be removed frou solution by geochenical processes and
reactions if the flo\d of the tailings soluEion occurs Ehrough the subsErata.
The geochemical processes are discussed in the following secEions. These
processes are generic and occur if acidic tailings liquid Eoves Ehrough
calcareous soil or rock. The discussion is specific to the Wtrite Mesa
projecE only in rhat the tailings liquid is acidic and Ehe subsErata is
cal careous .
GEOCIIEMICAL PROCESSES IN THE SUBSTRATA
The major geochemical processes which occur if tailings liquid flows
Ehrough calcareous substrata are:
o NeuEralization
o PrecipiEation and Co-precipitation
o Sorption
The fotlowing paragraphs briefly discuss several of the major geochemical
processes and reacEions with regard Eo specific cheuical parameters.
mi^Pm@ttub{L4
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Baker November 30, l98l
If rhe acidic tailings liquid (pH = 2) leaks from a cel1, the liquid
reacts with calcite (caCo3) in the subsEraEa. This reaction neu-
tralizes Ehe acidic tailings liquid and the pH increases. At approxiuately
pH=3.5, iron oxyhydroxides begin to precipitate. Alurninuu and ruanganese
oxyhydroxides also precipitaEe from solution as the pH increases.
Other heavy meEals and radionuclides fron the tailings Iiquid are co-pre-
cipitated and sorbed by the oxyhydroxides. Some nonneEals such as
arsenic and selenium are also effectively removed from the tailings
I iquid .
Elernents in the tailings Iiquid which are noE as effectively co-precip-
itated or sorbed include chloride, sodium, sulfate, calcium and magnesiuu.
Calcium and magnesium will be reuoved from the liquid by sorption and
ion exchange mechanisms. The quantity reuoved depends upon the cation
exchange capacity of the subsEraEa and the anounr of divalent ious present.
As the acid front nigrates and reacts with the calcareous substraEa,
calciuu ions are released in accordance wirh the following equation:
2H+ + CaCO3 = Ca2+ + CO2 + HzO
The increase in concentration of'calcium ions causes the solubility
producE constant of gypsum to be exceeded. Therefore, gypsun (CaS04'2H2O)
will precipitate renoving both sulfate and calcium ions from the solution.
Similarly, the concentration of radiuu in the leaking tailings liquid is
prinarily sinilarly controlled by the solubility of radiun suIfaEe.
Overall the lnost nonreactive eleuent is chloride. It will tend to Eove
with the groundwaEer.
The relative degree of mobility of the various elements in the geomedia
can be assessed by a tem called the retardation facEor. For example, the
retardation factor for chloride is 1.0. That is, if tailings liquid
leaks from a cell, the chloride ion does not react in the subsoil (is not
reEarded) and Eoves with approxinacely the saoe velocity as the tailings
liquid. Ilowever, elenents such as iron may have retardation facEors of
501000 at a pH of 7.0. Ttrat is, Ehe iron would move at a velocity 50,000
times slower than the water molecules. However, retardation factors for
metals such as iron are pH dependent. At a pH of 1.0, the retardation
factors for alI elenents are extremely low (al1 the elements are very
mobile). Ilowever, as Ehe pll increases, the reEardation factors increase
substanEially. Typical retardation factors for criEical paramelers are:
ELEMENT RETARDATION FACTOR
ChI oride
Sul fate
Acidity
Manganese
Uranium
Radium
Iron
Thoriuu
r.5
2.0
I ,000l, 500
2,000
40, 000
50, 000
1.0
- 3.0
- 4.0
- 2,000 (pil=7.0)
- 3,000 (pII=7.0)
- 4,000 (pII=7.0)
- 70,000 (ptt=7.0)
- lOO,000 (ptt=7.0)
m^^%PP{Afu(o.Wi,,;4
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Dr c.E Baker
These values are EYPical for sand and silty sand wirh two Eo three
percent calcium carbonate'
In summary, if tailings liquid flows Ehrough Ehe substraEa
November 30, I981
the following
tine) in waEer
should besequence Li "t tng"s (iisteJ in order of increasing response
;;;it;y, based oi-att" geochemical processes discussed above'
observed:
o ElevaEed levels of chloride and sulfate should be
observed initially' Elevated concentrations of
chloride should occur before sulfate' llowever'
increases in sulfate concentraEion are EypicaIly
easier to observe as the concentration of sutfaEe
in the tailings solution is nuch higher than that
of chloride (see Table l)'
Increase in calcium maY be
in the soil reacts with the
o' Decrease in pII should be obsewed
observed as the calcite
tailings liquid.
5.0 to 5.0, increase in
should be observed.
observed first.
o When the PII decreases below
radionuc lide concenErations
Radiun and uranium shoutd be
The above analYsis
of tailings liquid
sequence of events
should address onlY
Eeters of tailings
of analYsis for the
sect ion.
of the geochemical processes indicaEes that the movenent
iiro,rgi -the substraia should fo1lo.w a predictable
if leakage occurs. Iherefore, routine moniEoring
the paraoeters which are the inirial indicator Para-
liquid EoveuenE. The indicator ParaneEers-and frequency
recoomended progran are discussed in Ehe following
RECOMMENDED OPERATIO
The proposed operational phase groundwaEer uonitoring program has been
developed based "i it" preceaini discussions concerning tailings liquid
chemicat composition and geochemical processes' The proposed program is a
staged type program with selected indicator Parameters treasured quarterly
in the field; "iaiaional indicator and accuracy assessment ParameEers
measuredsemiannuallyinalaboratory;-and.afullsuiteofParameEers
measuredannuallyinalaboratory.-CriteriaandevaluaEionschemes
for evaluating tire results from ttre quarterly and seuiannual indicator
parameters have also been developed. The proposed PrograE is discussed in
detail in che following p.r"gr"pi'". The parameEers Eo be ueasured during
each saupting p"rioi ,i"'proria"J in Tabre z. The evaluaEion criteria are
presenEed in Figures I and 2 '
OuarterlY Monitoring
Specific conductance and PH
chenical sPecies (chloride,
reflect the Possible seePage
sulfate, eEc.) and the relat
of the nobile
ively inrnobile
M^-%*PY'@W-{9.N,T'
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Dr. C.E Baker Noveuber 30, l98l
chemical species (iron, radium, etc.) respectively. This is true because
increases in sulfate concentrations will be reflected by sinilar increases
in conductiviry as approxinaEely 50 to 60 percent of the conductivity in
it"-rritings liquid is due to sulfate. Also, decreases in pH below 6'0
,iif aypioltty indicate poEential increases in radionuclide concenErations'
Specific conducEance and pH can also be easily measured in the field' In
sumEary, these tlro paraBeters are the most iuportanE indicaror ParaEeters
bec.,rse Ehey will rnaximize the probability Ehat any change in water
qualiry is detected quick1Y.
I.iater levels should be nonitored quarEerly as changes can be useful in
evaluating results of laboratory analyses. The temperaEure.of the t'aEer
must also be measured so Ehat the specific conduct,ance readings can be
corrected to 25o Celsius.
The data from each quarterly uonitoring period should be reviewed to
determine if signifi"r.rt changes have occurred. specifically, the follow-
ing eval!:ations should be performed:'
Specr.!lg-lg4"ctance - The rnean- of- the first
@nal data should be used as Ehe
basis for comparison. These data show fairly
constant values. Therefore, the sEandard deviation
will be relaEively small and differences in new
ureans can easily be detected statistically' The
preoperaEional iata have large standard deviations
,rra irrct.asing values. Therefore, the qreoPerational
Itreans are difiicult Eo use in sEatistical evaluaEioos.
The evaluation scheme for specific conductance
quarterly measurenents is given in Figure 1'
ivaluatiln follows a sequence of decision steps or
actions. The first st,eP is to coopare Ehe current
value of the specific conductance (each quarterly
BeasureEent) to the uean of the first 12 rnonlhs
operational data. If an increase of over Een
p"t."oa is noEed in specific conductance, four
replicate samples frou only Ehe well(s) which had
the increased values should be collected over a Ewo
day period. The uean of Ehese four analyses can be
coipr."a to the mean of the firsc 12 monEhs of
op"t"t ional data by use of S tudenE I s 'rtrr test '
The decision second steP is couparison of the mean
frou the four analyses Eo Ehe operational data
Eean. If the ltrean shows a statistically. significanE
increase at Ehe 99 percent confidence level ' the
p"i"r"a"ts listed o., t"Ule 2 as semiannually
paraneters should be analyzed innediately' In
particular, TE, chloride and sulfate should be
analyzed in the four samples already collected'
The mean values for TE, chloride and sulfate can
D'^SyPWiDW-{ANfu
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November 30, I98lDr. C.E Baker
If increases
do noE droP
cont. inue .
then be sEatisticatly evaluaEed by use of SEudent's
ttttt tes E .
The third decision steP is evaluation of Ehe means
for T6, chloride, and sulfaEe with operational
data means. If this comparison reveals a sEatistic-
ally significant increase, a change in water
qr"iity-ray have occurred. The tailings cells may
U" t""Li.rg and additional evaluation should be
perforuedl tni" evaluation should include an
""r.""r"rrt of the analytical accurancy of the
laboratory dara (discussed in the next section) '
The evaluition should also include an assessnenE as
Eo wheEher the increase in concenErations is
significant in Eerus of degradaEion of the water
orrllit, related to its use (agricultural versus
ior.rai., eEc.) and appropriate sEandards or
i"g,rf"tions, environmenEal impact and potential
long-term effects
pH - The evaluation scheme for pH follows an
fpproach sinilar to that discussed above' The
""i"r. is given on Figure 2' If the pll drops belos
O.O, at" pltential foi nigraEion of heavy uetals
and'radionuclides exists. Therefore' if a quarterly
"..pt" indicates a pH beloY 9'0, four replicate
,rrpt", froo only the wef l(s) with the I'ow values
snouta be analyzed. If values below PII = 6'0 are
confirmed, the Parameters listed on Table 2 as
semiannual paraueters should be analyzed' Specific-
ally, the gross alpha concenEration should be
.oriyz"a in ttre four samples already collected'
The mean of the gross alpha can Ehen be EesEed
using Studentts rrtrr Eest.
If a significant increase in gross alpha activity
is confirmed aE the 99 Percent confidence level '
the radionuclides listed in Tab1e 2 as annual
paraneters should be analyzed to confiru which
radionuclide has migraEed into the monitoring well'
ii-iig"iticant incr!ases in gross alpha activiEy
ana rldionuclide concentrations are confirmed' the
data should also be evaluaEed as co its analytical
accuracy and significance in Eerus of water quality
standaris, errriionmental impacEs and poEential
long-term effects.
in specific conductance are below ten PercenE and pH levels
u"ior'6.0, touaine moniEoring as outlined previously should
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Dr. C.E. Baker November 30, l98t
Semiannual Monitoring
To periodically check the specific conductance which is measured in the
fieId, chloride, sulfate and Eotal dissolved solids (ros) concentraEions
should be measured semiannually. To check the pH BeasureEenEs and Ehe
possible movements of radionuclides, the concenEration of gross alpha
raaiation should also be measured semiannually'
the quarterly
be measured to
while gross
of meEals or
Iide acEivitY
These seoiannual measurenenEs will provide confirmation of
readings.Chloride,sulfateandTEconcent'raEionsshould
deEermineanypossiblemoveuenE'ofnobilechemicalspecies
;ip;. should be analyze'd to deEermine any possible movement
radionuclides. Cto"" alpha is a good indicator of radionuc
from uraniuu, thorium, radiuu and polonium'
o Calcium
o M'-nesium
o Potassium
o Carbonate/BicarbonaEe
o Sodium
The determination of Ehese accuracy assessoenE parameEers will enable the
analytical acceptability of uhe laloratory values Eo be evaluated' The
Eethodotogy for perforning the evaluation of rhe laboratory analyses check
is presented in it. foftoiing section on qualiEy conErol Eechniques'
In addition
above, the
If no
value s
should
gross
shoul d
to the the indicator Parameters lisEed
following accuracy assesslnent' ParameEers
in Table 2 and discussed
should be analYzedz
chloride, sulfate or
four rePlicaEe samPles
by StudenEts rrtrr tesE.
significant changes in-the quarterly specific conductance and pH
are observea, ,rl significa"t "h"ogts in the semiannual parameters
be noted. However, if the values for TB'
atpha show more Ehan a ten PercenE increase'
bL taken and Ehe Eeans Eest'ed sEatistically
Inaddition,analysesfromdowngradienth'ellsshouldbecomparedto
analyses from upgradient wells' That is' if analyses from the upgradient
well (We1l l) show increasing values, this increase ll_]l::lground'r should
be accounted for when evaluaied "ty i.t"t""""t in concentration in down-
gradientwells..Iloweverrthisstroutanotbenecessaryasdatahasshown'
EhatconcentraElonsofsulfaEeandTBarefairlyconst'antinWe1lI.
AnnuaI Monitoring
Table 2 lists aI1 parameters wtrich should be monitored once per year'
Essentially aII parameEers with elevaEed concenErations in the tailings
celIs should be Lvaluated. AIl parameters necessary Eo assess the ana-
lytical accuracy of the laboratory results are also deternined'
M,[e-mail]{iL
6 Ouarterlv Monrtorlng
- Collect a samPle of waEer
perform field measureuents
and specific conducEance'
- Retain samPles for
ParameEers (table
values indicate a
Ehe exPect.ed range
o Semiannual Monitoring
- Collect
out 1 ined
one plastic bota1"(I)
for major anions and
linity in the field.
- For laboraEory analysis, collect samples and
conEain as follorrs '
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8
RECOMMENDED GROUNDWATER SAMPLING
sarnpling and quality conErol Eechniques are discussed because
are considered .riti""t in obtaining accurate and reliable-ih" .""ommended Program specifi'ed above'
Groundwater S amPling Techniques
Noveuber 30, 1981Dr. C.E. Baker
Groundwa Eer
these items
resulEs from
o WaEer SauPIing
- Measure Ehe sEaEic waEer level of each well'
- In order to obtain a Later sample that -is free of
contaminants and is representative of formation
Irater, bail or PuEP from each well a volume of
Irater equal to i"o'rimes the volume EhaE is
stored in the screened incerval' or unEil a
. constant value for specific conductance is
obtained. The well may be bailed froo the
surface of the !'ater' If uPon evacuation of the
well the ,"i"t supply is depleted' allow the well
to recover for 24 hours and then sample Ehe water
wichout additional bailing or pumping' .If
bailing, Iower the bailer to the nid-point of the
,"t""o"d interval for sample collection'
sauples and perforn field treasuremenEs as-rbove. In "aaitior,, Beasure the alka-
as discussed above;
of t.emPeraEure, PH,
, unfilEered, unPreserved,
cations.
by the laboratorY'
analysis of semiannual samPling
D if pll or sPecific conductance
change of waEer qualitY outside
of values.
TI)s iire ot Ehe boEEle Eo be deterurined
MD;\WDWD{AE,MNH
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Dr.Baker 9
one plastic bots1"(t), filtered through a
nicrorneter f ilter, Preseiled -wich nitric
for dissolvea raiionuctides (gross alpha)
Noverober 30, 198I
0 .45
acid,
- AnalYze for ParameEers
for semiannual samPling
o Annual Monitoring
as outlined in Table 2
- Collect sanples and perforo field measurenents
as previousiy discussed; in addition perfortr a
field rneasurement of alkalinitY'
- Collect and
laboraEorY
one
for
bottle sauPles for a full suite
analysis as follows:
plastic bottle(1), unfiltered' unpreserved'
najor cations and anions'
one plastic boE11"(1), unfiltered' preserved
with sulfuric acid, for nutrients analysis'
one plastic bottle(I), filtered through a
0.45 nicroEeEer filter' Preserved trith nitric
;;i;,-;;t dissolved metals analYsis'
one or uore plastic boEtl""!1)' filtered
through a 0.45 'itio"t"r filEer' Prestry:1
"iii-Ii.tic acid, for dissolved radionuclide
analyses.
- AnaIYze for Paramet'ers
for Annual S arnPl ing '
In order to miniraize oxygenaEion when
iiri"t"a using nitrogen gas' samples
i""-p""t"d coilers and Eransported for
hours.
ecision.",,d'1":l'1,-'::-::."ffi:::":;:"i:ll",n"
Ii"i:'::.'i"il:l"rv, dat a ctrects siourd-be-r:f::':i:,,, Iil""!lil5"!"rll
::: I ;. i::'' ::::il ll{ I i.,' "'" .n ;-i J;*:; ::" ::::l: :. ":::l' "i:"fi
' l:ru:::i':;i:":::;';;i;;;i";-o;;;";'-
-rhe
rlcommended data checks are :
\"
as outlined in Table 2
filtering samples, water should.be
"i."ra b! cooied to 4o Celsius in-irUo.raorY analYsis within 24
" :f;:';:J::'::;:':;'h:ili?::,-":::,::i1!:.;r:.nce
1s
Ideally, *"r"i'-"t" elLctrically neutral' and Ehe
boEEle t,o be determined by the laboratory'Clffi]f shg
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November 30, 1981
Dr.Baker
positive charges contribuEed by cations should
equal the negatrve charges of Ehe anionl:..-l?^--
calculate Ehe charge bafance, the concenErations of
the major cations lia ""ions are converted to
milliequivalenEs. Ttre Percent is Ehen calculated
by the following foruula:
Cat ions-An ions -- 1 ^^o/7" diiierence = e6;,;6nfu'rs x rvv'!
Charge balances below ten Percent usually reflect
good analYtical methods
Soecific Conductance Versus Meausred Total- Dissglved
of a wacer
;ffipendent upon the nuuber of charged
;;;i.les in ,otrtio", which 1: i" lurn a function
;i ;i" amount of dissolved solids' Depending on
che chemical composition of a water' the ratio of
iil ;; specific tonducEance generally ranges from
O.SS ao 0,77. C^mparison of these ParameEers
provide a check for Uottr analytical and insEru-
EentaI Precision.
Measured t@DS - The TB can
ta="ffisu,,,ning the conEibutions of che
major caEions and anions' The calculated TE value
provides check of the precision and accuracy of the
individual anatylet "f iue tajor ions in solution'
A difference beEween calculated and measured TE
EhatislessthanorequaltoaPProximatelyEen
;;;";; i;-;r;;i;ered an indication of good Iabora-
Eory Preclslon.
Field pH V"ts,r" Labot"toty EH - In order Eo check.:
whether any na3oE66ffiFwater chenistry have
occurred ftot ti. time of sample collection to the
tirne of laboratoiy analysis, a comparison- of Ehe
field and labor"ilty "iu"t of .pI{ should be made'
An acceptable range of change is 0'5 standard
unit s .
I" orAlkalinitY Prov:
deteruiniog ,t"ti"r the chenistiy of a waEel.":tpt"
has signif icantiy-"tt""gtq ft.o' the time of f ield
collection Eo ti! time of laboratory analysis'. A
difference of I0 to 15 Percent.between Ehe field
and laboraEory determinations.is considered accePE-
;i"-and inditates that no major changes have
occurred in Ehe soluEion'
m'-\PYPiOW-{'gWZ
Dr C.E. Baker
In addicion to Ehe above semiannual
recoomended:
The proposed
Sp1it Sanple Analysis - In order to evaluaEe the
;iffiy results, water samPles
stroula be randomty sellcted for split sample
""riy"i". This sirould be done on an annual basis
for sanples from one well' SufficienE samples
should be collected at one tine Eo filt a duplicaEe
set of bottles. The saruple should be thoroughly
,ixea Eogether before filling any bottles in order
to mininize sample variabiliiy' Label the duplicate
sample with a seParate sample designation' Results
witirin Een PercenE are considered accepEable
regarding analYtical Precision'
November 30, 1981
checks Ehe following annual check is
SIII'{MARY
11
TheoonitoringPrograooutlinedabove,istechnicallyaccuraEeandcost
effective. -IE is technically accurate for the following reasons:
Specific conductance Eeasurements will deEect
;i;;"aion of mobile elements such as chloride and
,,rif"t". As backup confiraaEion of possible
;;;;;i;" or tairings liquid, concentraEions of
TD;, sulfate and chloride are measured semiannually
"i-"t"" statisEically significant increa.ses in
conductivicY are rePorted'
pII measurenents rd11 detect nigraEion of heavy
l"r"ft, and radionuclides' As backup confirmation
"i-p".iiule migration of radionuclides' gross alpha
""tirity will be measured semiannually or when Ehe
pII decreases below 6.0.
The basis for assessnent of migration is previous
daEa and statisEical evaluation'
The proposed evaluaLion scheme (four replicate
;;;pi"", sEaEistical tesEs, etc') generally.follows
EhaE recommended by the EPA for groundwaETilg-
moniEoring at hazardous waste siles (40 cFR 265'90)'
moniEoring plan is cost effective for Ehe following reasons:
The evaluation sysEem is based on relatively
inexpensive field aeasurenent'
Costly laboratory EeasurenenEs -(especially radio-
nuclide ".,"ty.""i "r" ot'1y perforroed when signifi-
cant increases are measured in indicator Paraneters'
m'AwP,iw;;DNT,,
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Dr. C.E. Baker November 30, l98l
The recommended operaEional monitoring Program.fulfilIs Ehe requireEents
of being able ro ivaluare compliance iilt .ppricable regulations, monit'or
the impacts from it" "y"a"n, and detect pocential long te'm inpac.s.
If you have any questions, please call us'
SincereIY Yours,
,("*/*'
Roger "L. olsen
Project Geochemist
a^-S eN'A--
Corwin E. OIdweiler
Project Engineer
RLO: CEO: ln
cc: II.R. Roberts, EnergY Fuels
o.i. Sp..ling, Energy Fuels' Blanding
m'-^wm{hwmY,iL
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COMPOS ITION
TABLE I
OF TAILINGS LIQUID AND NATURAL GROUNDWATER
TAILIN
LIQUID
GS(t NATURAL
cRouNDwATER( 2 )
UNITSPARAI.{ETER
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pH
Specific Conductance
Acidity
TotaI AlkalinitY
Bic arbonate
S ul fate
ChI or ide
Nitrace
Ammonia
Phosphate
Totai Dissolved Solids
Aluminum
Arsenic
Bariuu
Cadmium
Cal c ium
Chrooium
Copper
Fluoride
Iron
Lead
l.lagnesium
Manganese
MercurY
Molybdenuu
Pot as s ium
Se leniuu
S ilica
S i lver
Sodiun
Vanadium
Zitc
S.U.
urnhos/cnG25'C
mg/l as CaCo3
ng/I as CaCO3
ng/ I
trg/1
ng/ 1
rrc/L
ne/1 Nu3-tl
mg/t Po+-P
mg/l G 180'c
ng/ I
ng/ I
ng/ I
ug/ 1
ng/ I
ng/ 1
urelL
ng/ I
rielt
rielL
Ec/ I
rnc/ I
ng/ 1
og/ I
ng/ 1
rrclL
ag/ L
ng/1
ng/ I
urg/ L
ug/ I
r
_10
tt ,iiz
t ''_:O
L,827
148,510
(95,346 calc. )
330
5.90
<0. I
2.60
560
6.20
265o:!'
6.00
4,000
222
L7 .6I'
0. l8
400
0.14
4,200
510
63.0
5 3, 900+3 , 800
g4,35oT3,9oo
5.0
529+7.0
76,6407t ,640
20,700T800
I ,410-+64. 0
6.8
1,480
<2
262
320
520
13
<0. I
<0 .01
0.10
1,219
<0. I
0.002
0.05
<0.001
130
0. 002
0.02
0. 51
<0.01
49
0.21
0.0005
0. I9
7.8
<0 .001
2.7
0.003
160
<0. I
0. i2
Rad ionuc 1 ide s
Gross AIPha
Gross BeEa
Uranium
Radium-226
Thorium-230
Lead-210
Po I on iurn-2 l0
pci/1
pci/1
urg/ |
pci/ r
pci/r
pci/l
pci/ I
5, 1981 .
from moniEor well No' I (upgradienE), APril 1980 sanPling
27 +6
t+z+-tz
0.6043
I .9+1 .0
o. o;2.3
0.0T3.7
o. oTo. 5
(I)6ns1ysis
OcEober
(.2 )6n31r" i"
period.
f rom Core Laboratories , Inc ' analys is ' Job No ' 6307-t'I81381 '
Y[b^WW,{,bWAhN't
TABLE 2
CHEMICAL PAMMETER
RECOI'OGNDED OPEMT IONAL
MONITORING SCHEDTILE
PIIASE GROUNDWATER PROGRAM
ANNUAL SAMPLING
PH (F)
ipecific Conductance (F)
Temperature (r)
pu (r,l)
Specific ConducEance (
TemperaEure (r)
Total Dissolved SoIids
Alkalinity (r,l)
Sulfare (L)
Chloride (L)
Annonia (L)
Phosphate (L)
Alurninuu (L)
Arsenic (i.)
Cadrnir.rn (L)
calciun (L)
Chroniun (L)
Copper (L)
Lead (L)
Itagnesir.rn (L)
Manganese (L)
Mercury (t )
Molybdenun (l)
Potassiun (L)
Seleniun (L)
Sodium (L)
Vanadium (L)
zinc (L)
Gross Atpha (L)
Gross Beta (L)
Uraniun (L)
Radium-226 (L)
Thoriun-230 (L)
Lead-210 (L)
Poloniuu-210 (L)
UARTERLY SAI'TPLING SEMIANNUAL SA]'{PLING
Indicator Parameters:
pu (r,l)
Specific ConducEance (f ,l)
Temperature (f)
Sutfare (L)
Chloride (L)
Gross Alpha (L)
AccuracY Assessuent Paraneters :
Calciun (L)
Magnesiun (L)
PotassiuE (L)
Alkalinity (r,l)
Sodiun (L)
Total Dissolved Solids (l)
in field
in laboratory
oetals are analYzed
NOTE: F = ParameEer oeasured
L = Parameter Eeasured
All radionuclides and for dissolved concentrations onIY
M^^%WW@WfuWH
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QUARTERLY SPECIFIC
FIGURE 1
CONDUCTANCE EVALUATION CHART
Specific ConducEance
Increase > r07"
trS ignif icant"increase No |tsignificant"increase
S ignific ant Increase No significant increase
Increase < L0"A
Continue routine moni-
toringa) Collect 4 rePIicaEe
sauples
b) Conduct SrudenErs trErr
Eest on sPecific
conduc E ance
Continue rouEine uonitoringa) Measure semiannual
parmeEers in 4
replicate samPles
b) Conduct Student I st'ttt test on T6,
sulfaEe and chloride
a) Evaluation of sPecific
conduc t ivi tY Eeasurenent s
and analYtical accePtabilitY
b) Continue routine oonitoring
naking aPProPriate uodifica-
E ions
a) Evaluation of analYti-
cal accePEabilirY
b) Evaluation of signifi-
cance
c) AgencY notification
d) MiEigation
m'^TPW@W-@wz
a) Cotlect 4 rePlicate
sampl es
b) Confiru PII ( 6
Continue routine monitoringa) Measure seoiannual
peramerers in 4
repl icate samPles
b) ConducE Student I s
"ttt EesE on Gross
Alpha
a) EvaluaEe analYt ical
accePtibilitY
b) ConEinue routine moniEoring
naking aPProPriate nodifica-
t ions
a) Analyses of t'annual" radio-
nuc I ides
b) EvaluaEion of analYti-
caI accePtabilitY
c) EvaluaEion of signifi-
cance
d) AgencY notification
e) MiEigation
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FIGURE 2
QUARTERLY PTI EVALUATION CHART
PII <6
pII(6 pII)5
Significant Increase No significant I.n cre ase
plt)6
Continue routine moni-
toring
M'*%WY'@W-@WW
Attachment I
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TO:
FROM:
DATE:
SUBJECT:
MEMORANDUM
Ronald F. Hochstein
Harold *.*oo"n /Ql&.
April 18,2001
White Mesa Mill - Water Supply Wells
David C. Frydenlund
Michelle R. Rehmann
over the past several years there has been a fair degree of confusion over the name' location and
physical characteristics of each of the water supply *"11t ot' the white Mesa site' I have attempted
to gather information from the files, supplementedwith information from my own involvement with
tfr"""*fy construction of the facility, to clarify the specifics of each well'
The initial planning for construction of the white Mesa Mill based the fresh water needs on the
development of deep wells (+1g00 feet) to supply the full needs of the facility. It was initially hoped
that each of the weils would supply 300 - sob'gattons per minute (gpm) to the mill. This projection
was based on the results from ih" first well 1tli" "T"riwer") completed in eally 1977 - Although
this well never produced water at the 300 to joo gpm rate, it was projected that larger diameter wells
would supply the necessary volume. Subsequeniwells never produced consistently over 220 gpm
and proved to be high maintenance installations. Energy Fuels originaily projected drilling 2 to 3
deep wells, Uut act,alty drilled 5, after the Test Well, in the attempt to supply the full needs of the
Mill. There were r*.ror]S occasions when the Mill would be shut down due to a lack of water' In
19g4, Energy Fuels herped fund the construction of Recapture Dam and since then the majority of
water has been obtained from the Reservoir'
Following is a summary of the specifics of each well:
Test Well January 19,1977 6 inch 2,580,952 Eastf
322,667 North**
(east side of Mill Yard)
2,580,065 East**
323,324 North**
(directly souttr of WaterTank)
l 800
No 1.September 26,1979 10 inch 1 860
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Memorandum to Ronald F' Hochstein
April 18,2001
Page2
No.2 February 18, 1980 10 inch
No 3.July 28, 1980 8 inch
1885 2,580,425 East
324,168 North
(north of Mill Yard)
1850 2,579,446 East
323,051North
(between Mill Yard and Cell 1-I)
No.4 October 24,1980 8 inch*** 1820 2,583,347 East
328,346 North
(nordreast comer of Mill property)
No.5 APril 11, 1981 12 inch*** 1955 2,582,423 East
317,984 North
(southeast comer of Mill property)
** Coordinates are approximate from topographic
map. All others from LanDesign, August 28, 2000
*** Casing size should be field verified
In the past, the current well No. 5 was sometimes referred to as well No' 4A or well No' 6' This
was because of issues with the water Rights Apprications, and early confusion with the Test well
being designated as No. 1. The current nomenclature, as described above' is correct'
well Driller,s Logs are attached for all of the water Supply wells, with the proper designation added
to each of the documents.
thrr
Attachment
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Water Well #5
'x-dm
.:.j
.. : ' ,'.... -, ..,. :..: ,.., .p$CRlPftON : -
ljll AssAY (
nL\{ARI(3
t<lt,
' lYh-rrhitc
" Br-brown
R-rcd
Gy-groy
Abbrcvlrrlonr
CG-conglonrcroto
SS-endstonc
)rtFmudstono
ST-silrstono
F-6nc
)rI-rncdium
C-coerrc
N-nonc
S-sparlc
A-abundent
F
tttt
t87c iqsS
SAM
lb&.JA.r*t
Gn-grec[
Ys-ycllov
Bli-black :
Pp-purPlc
Cbn<erbon
OBSS-oro bcnring randllnnc
1-+*}9,,. $-
Itr5 -tlrtyjr,tJl5i -flrres.
Typ ol Diilt.--.r--*....n'*xnr""'rt"td-x'Water Well #5
nr-venri
DESCRTPTION
--
'r4
--
l-JrJr\rGr
tttttttt
' B-brorvn
R-tcd
Gy-graY
Bl-bluc
Gn_grecn
y1y-ycllow'
B\-black :.Pp-purplc
Cbn<arbon
Abbrcvlrtlonl
CG-conglomrorc
SS-andrtonc
)rtS-mudstono
ST-riltsrono
F-6ne
JrI-rnedium
€-corlc
N-nonc
S-rperrc
A-rbundlnt
OBSS-oro hcnring randrtonc
_ :i'
r". r:iialrlr:'j:;Ii:!i....EH[I B?
:,,:....;.rr;g,:-:..".. ,, .,,.1 . Dllll Holr"Lith
FBEL5,Water Well #5
1gsl'
,l l,-Hr.r'. .i.
la Location:
Elev.:
BY,
AbbrrYirtionr
DESCRIPTIOH
f -f ine
m-m:dium
cr-(oar5e
sP- !P!r3t
t-3Or:'te
a.-obundont
l-light
m-mcdium
d-darl'
w-wcci
rned-moCarate
39 - tlton9
rty - t;l ty
ark-arkortic
c-carbn
cbn -cotbonsccouspy-pyrilc
lim-limonits
hem-hemslits
CoCOr<olcrtc
bent-benloni:e
or-or idi:sd
urror-Unoridi:ed
r bCC -crorr'beddedbdd-bcdd:d
limy-limy
. HOIE NO.-
6E},E&AIJ?ED trnl ,lob
Cgl-<ong lott.l '?' lr
ArL -arlolaSr-rcnCrlonc
Lts-mud:lono
Sr-rill!,c.rt
L g - liri ar tona
Sh-:hcia
Gr--graain
rf-rcft
m-mCiurn
hd-hcrd
v-veiy
wh-whila
br-brown
rC-rcdg'/{,oy
bl-blue
9n-9rctn
yw-ysllow
bi-blesk
pp-purplc
or-€ron? c
p!-pini
ln-l9n
riy-ranCy
I t''1'': i1/-' -' '-'L' -'
Fon r!!-!M-tl4)
Test Well
IttrPORT OF \\'EI,I, DITII,I,EIT
STATL: OF UT,\II
(l?) \\'r:I,L TtisTS:
lt'rr r pumn t.rt h.,1. t YGt
ti.ra,-. -I20.-- rrt./mtn.
I
I
t (l) \\'ELL O\l'NIlR:
x. -. .. E n-e.r g y--E-u e.r- -s-..-L-.Ld-... -
-
i dd,o. -p. -9-!.!.y,9-.r--,
-q-a
I-p- rg. o o-
i(z) t ocnrroN or wELL:'a.r.,r..9.-?-l-'-J-tl.e.Jt-
Ground n/ercr Brrto
-
.:i:-., (l..rtbl.nL) S€conz,f
i'-' t
-. -6-Q 1.Q--.--.,*. "" t
2.Q.0- g--tet rrcruS J{..co-",
,,h* Wcrl
:,ir'"..,,o. ..27..--.-. r--3-7----..: , a..-.22 E sLItLr
..ul ac.d. nor i.GJ.ir
--'-"-'---"t -'--&\ffi ('tdrt
(3) NATURD OF \\'OnI( (check) i Nrrwrl E
. Rcptrcrmcnt WGll D Depcnlnr g Ecprtr O Abrn{oo B
It rbrndonmcnt. drrcrlbr D.i.rl.l rod prcc{un;_
(4) NA'TURE OF USE (check): : : ;. .
Douotlc B 'Indutrhl$ ..Bunlclprl I Slclrlta3 tr
trrlrrtlon E ' Ulolnr Q O$cr' e Tat tgU E
(5) TYPE OF CONSTRUCTION (check):
Botrrr H ,,
, .?u" O ,. 'Jcltd trCrlh E. Drlvcr tr Borort tr
(6) CASING SCHEDUf,B: rt,..d.a tr wc,d.d rl
--6--
Dirm. lroe O 1*1 6 'l ? 5O,r**... ti ]
Dlrm. lro- ,e! lo ,Rt G.t._
Nrr tr Rrjcr O ILod tr
'(7) PERFORATIONS! pcr(orr6dt y:r e No F
TTpc ol Dcrlorrt ! orcd
Slrc ol gerloretlonr.
--grcrlor.tlonr
rtoF ?Ggt io ,cat
--pcrforrtlonr
troE- ,Et t tE!
- --pcrforrtlonr
lroo-tcct
rooitcrrtrn ll:.. j\-9 t9'B
Cirlo lio.
Cmrdlnrtc llo, -..-.--
GENEn.\L ST,\TIillENT: Iitport of well driller is hgr.eby msde end filed u'ith the State Enginerr. in occor,'lancc rsith the lrr*'s o( [iteh.
(This report shall bc fileci s'ith the.State fingineer wtlbin 30 Cays uf tcr the completion or nban,lonment of the rl'ell. Failurc to tile ruch
i.portt constitutes a mirdemeanor.)
Drrrdo*n lr lh! di.l.ncr ln ltl tbo rrbr levtl lr lor.!rFl lr.low .t.ilc l.v.l.
i{ rt" 6 rt ro, br -uo-r-t.I..- F- }loggard--I
- r,t, .---f 7. 7---...-. ter d r r r dor n . t,. r-Ilx..--boun
B.ll.r l.rt .,. .-........r---. t.l./mln, rllb---..-.-.--,-.....tet drrrdoro .tt.r.____.bourr
A?t rlon flor.._-.._ _s.F.m.
Tenncrrturr ol *.t"r.-7.0. Wrr r cbcmlcrl rorlTrlr mrdr t i6
(13) WELLI.OGi urrmrrrr or -.rr....8-11.E,o12.b.e....b.,.|_toii:
.--.3rcrlorellonr lrom..-..---.-.-.....-,.-..tot to__ r*3
I'c.for^tlonr lroo.---.-lFt to _Jct
(8) SCRDENS: worr rcen rnrrrrrcdt yo tr No p
tl.nutrcturr'a Nrmo.--
Drr..--..-.--.-..- ltatd No._
Dtem. .......-..-. -,..Slot rlrr.-...........-.... Sct lrom.-___lL to__
fllrm.......-..........._ Slot r1rc..............__...Sct trom...___tL to__
-
(9) COIiSTRUCTTON:
lfnr rrll jravcl peclat? Ycr Q ilof,l Slro ot lrrvrl!.
Grrrtl plrccd ,rom.--.--....- ,rt ta.-- ,d
wra r .urt... rcrt grovldcd? Ycr E HoO
To rhet dcath 1......-. | $.!------.t*t
rt^t"trt rr.ert tn rrrl:.,COnCf etO.-.__-_
Dl,l enl .trni^ Gonl^ld unrtrrLlo xalcrf Ycr O No l{
Typr ol rrtcr:- Drgtb ol atr.t^_
llrthod ol rc"llng rtr.tr oll:
Drpth rtrtltid..-..-1.800--.......-..-..t{L Doprh ot conort.rt ,.tt- JB.0O-.--.-_I-,
NoTE:.Plrcc.; "x" lD thc rgrcc or c-omblnrtlon ol rprrcr nccdcd to dolrnrtr tbr nrlrrlrot combtnrrtun of mrrrrirtr rr;ounrGrrd tn c."i' jipttr-int.-ii.--rjialriiijL'ei.N,ii...r,. .ndcrlrrblc.noicr o. to occurrencr o_f. weicr i",l tf,"-"ifJi. .ltc. D.iu.G, .t.. o! Dri.rlrl .ncountcrcd ln crcb dcatb lntcd.l, Urc rdditlonrl-rU.ii'fi o."aA.
br
\rirr rurlncc <rring urcJ I
lVir lt c? m" n I rl I n rlucc I
Ycr
Ycr
Bq NoS
lio O
( l0) \\"\'t'litt LIiYIil,s:
:it.ttc lcr.t 3I 7 ....--tet hator lanrl .u,r.(. u.r. I - L.9 =-27_
,\.l..i.n.nfFr,rr. ....,,.... ft-t rl"rvr lar{ ra7J16. D.i..____--
D.pth to Funtrr o. l-*1.. ......7.90 .. ... ....... ,,..
(Il) l:I oYilNG \\'tit,L:
tl,rntr,rll.4 br (ch<Ll Yrlrr O
Cep f) I'lur O N'o Connl O
Irrr rrll lrrl rro'rnd curnr I Yo O
lio O
\\'r.ll I)rillcr's Stnienrcnt:
Tlris rvr.ll s'ns rlrilltrl utrrlcr.rl). slrp(rrvision. nnrl thir report ir trtlre Lcst of rrry klrorvlr:rl1;c nrrrl lreli.:f.
x
" -" .....1 1-:. - -li:-..!.! o il s :l.L :f .--L.I :..
ll'rrr.rn, tlrm. o..d?nrr.ll.t^t (Trr< or Drtnt
UATEBIAL
EaF
h I-i
nses med. hard
25-0 |
-io-S,
urE oTlrt:rr stDr roR A!)ntT:OyAt, nE!{^Fris
Water Well # I
NIIPONT OF WITLI. NNILI,EN
STATII OF I]TATI
ADpllcrtlutr
Clrlrn llo..
(iocrrll ntlc
No.. ...,....-.-..---.'...
No. .t
I
't,GBNERAL
STATTTMENT: Report ol woll driller ls her-chy,made nnd filed rvith tha State llnginecr, in nccortlonce with tho tnrvs ol (lurl
. .,ieports ionstltutes a'mlsrlemennor.)
(lcovc blrnLI
-.'' ...-...:.....:.:---..Jcot 1rcm..--.--.-".Comcr
Wcrt
t" ft'
wer a srurner t*\h.dGr y* ffi No R.I{ ".,0r.,,.-E.LQ.fgy". 'ilfrlA"ll-qq]'
Ylclrl: . .... (L:1 . rrl./nrln. *rtt..........i-.:l-:|..... --. let rlrrrdovn rltcr'--""'i i'll " '- bouI
,,,.:(2) LOQATIPN OF IItELL:
rl :: -'|: : rr " 5an uuan--.. Ground wrtcr Duln.---;:\Countr......-.-..-.----.-:...- ,t,ur htralrt ....-.. c.l./min. wlih ........,....-...trot drr*doro aftar..--. ...--.-...... 1,otI
t
r: ,.,1 !f. ..:1
,'.i ii.f:No.tt 1 lnnlril,*lrl - .199..Q.-..,-,, *'..-
-?1.9.-0.'; :,.;1il|{. Wot
SE
.',1.1.'n'r:::.'t . ,, 28ii.,,." .:. ?9--..,-.. ,-....".1-7. . .y. .. ?.?-.-.l,llo',.,',*". .::,,j..6f
B(XIEX
' , . biti wordr not ncc{cd)
:i
Pcrlorrtcd I Ycr gX No O
Artc:lon flow...--......--'-.....- ..."-..-..0.D.n, f)rtc-'----
TcmDG..tu.G of rertcr.............. Wrr r chcmlcrl rnalrrll oedo ? No C] Yc:
(13) WELt. LOGi urrmcrcr or -o,, ...-...-......1?k-.......-..-..........-.......tnc1
,*.n.,'.*g._-. .....1.920....
NOTE: Plrcc an "X" ln tha rDrcc or comblnotlon ol rprco nccdcd to dalBnrtr thr mrtcr
or cornblnotl',n of nrrtcrioh cncountcrrd ln cuch depth ln!:nrl. llndcr llEllARllE nrrkr t
dairutrlo not"i nr ro occuirincc o( wolcr rnd thi colot. rlrc, Drturo, otc., ol arotcrial
countercd ln cach dcptb lntGrv.l. Urc odrlltlonnl rltccl lf ocedod,
RE}I A BKS
Red
Satrdstone Gt'een
Yel I or.r
TTty Tense's --
ue ura.y
me
486 [rev-!e-t! ss-
50
7B
360
25
one
raue
501
580
705
738
750
5
10!A.
r?!q
125A
1296
oneRe
Re
Bl ue Gr,r
te s tone
Red B_-_
tone
lm-STc'ne ----
TeA-n5lTe E]tre fftrd-:
t'lucl S toncffT-I a)' re'r:
l.ownffi-t'ft rTtl - c oToiTlia-'l e
_eu.
909
939
r038
one
Wrr l! ccmrnted ln Ptnccl Ya tr No tr
-(10) IVATItrR I,EVELS:
strtl€ |cvG| ..........*.!.7--....-.r"n brloa lrnrl rurleco
1UQ
;,.u .;- /\u.g.l!iI..3 --, rJ9- comFr*rd.--ggnterntt-9r ?6-
(r.4) PUITIP:
f,t^nrrrocturcr'6 Nomc.... .. .........
TyDr: ....-........'.- *-' E' r'---'----""--'
Dlrrth to Dunrn or hoq'1cr............"".' " "" " " " tet
\\'cll Drillcr's Statcmcnt:
Thir wcll wos drillcrl untler .t.rty strpcrvioion' nnd this report is
Nnnle ---------,-- ---:-- --------.---
( lcrron. ttro, i'c-wporrtlon t - -/ (Trna or 1tr
Arrdrcsg "':::$fi-lrg1ii ,qp 'il:\ ;- 99$ L c llv :- llt
( s i s n e rr ) (, /2r., - / :./,. :{ /i'a n#! (,(; tr;:f =
Wrr rurlar crrlns urcd I
LOG TIECEIVED:
YotrNoO
(rl) FLOWING T/ELL:
Controtltrt br (cbxt) Vrlvr ' E
CrD O Plug tr No Contrcl O
Dar rrlt ttrl rround cralnl t Yc O
Notr
TtgE OTTIEB BIDE FOR ADDMIO}IAL F.EHANI(S
Water Well #2
tracrdrdt tr. C......- "' '- T' D . r'
I,- .''. -- STATE l)F UTAII Gtrtn Nc..-,-
_3) NATUITE OF WORK (check) I Nrr wrrr o
calrctornt \tcll Q Dccpcntnt Q Rcarlr Q Abudco Q
' rbradconcnl, dcrcrlbr ortrrlrt rod preodurc:,----.. --:----
f."i.;ir.t'ri,. .i. , :, :.'l.Efr.ffi.-.-'_,,....-
4) NATURE QF USE (check):
NOTE: Dlrcr rn "X" ln thr' rprcr or combtnrtle ol rDrco ucdcd to dotsnrle tbe mrtrrlrlor cotnulnrll,rn ol mrtcrlrlr rncountcrrrl ln orch dcprh lntrptl. Unrlcr ItElIARXS orhr rn;doirrhle - notcr r. to Ecur.tnar cl rrtrr rnrt thj color. rlr. D.lu?.. rt.. of arbrlrl ro-coutrt.rcd ln creh dqrtb lnirrrlrL Ur rdrtltloorl,rbct ll :ocodrd.
DEI'TN ':, .:,:trl,
: r.i.; i .,
''1.":
'i li:. nEuARr(s
i.t
;--t,r."8 .,rii:'r.a-,rr.r p Irunlctprl e
l+iu"; o ":', xror', A o0rrr o
Stelr.l.r tr
Tcr! Y/oll O
5) TYPE OF CONSTRUCI'ION
:il:',ffi3 i;,,.', :::.. :
o)'castNG scannul,E: zt,-aa o w.td.d o
f-:.1.0.-- pr.-. trco o -r-. ...-I250--r-r 6^"o 250-+.C .
'i-:--- Dlea. tmo.----t..t 1,o..-------Jol Cr8r.----
.- d B.Jr<t O Ur.d O
?) PERFORATIONS: pcrrorrrdr y, s No 0
r;rc gt ;Erloralor ord----
& Green
llh'ite Grev-Bl ue G
Stone-Bl ue G
B1 Grey Sandstone
B'lue Green Limestorre
muds ton e
reen Llmesto
290
worl rr..r.d...... 0c.t......I 0..........*..-.. rr..79 co-pr.r-r_ Fph 'l I . :
(check):
{Ti'd
Bond
o
o
E ct lErlorrtlon...bt----lsc.hr
------pcrlorrtloor trcq--____Jct
--.-Dorloretloar
tr!o----_._.Jq! to--_ trt
l----:-DcrlonUonrtrco.--.-..-,-.--...lctto..-
-l-t
--.pcrtorrtlonr
trca.-----.--..--.,.. te! lo--;..-..---Jet
- -..-- jror lorrtJour trcm ----Jrt to____l a..t
I
I
8) SCREENS: wcrl rcrxn lnetrlrcdr ya B No E
rnutrctqnr'r N.rar
Pi---.----. ldodrl No.---
|q..,-.--............S1o1 lJa-..,.- -.......8.t (rom..........---..(L to..--.-
li-.....,-,::..---.....81ut rta..........-..-.-...s.t trco.......---.-....tL io..-
9) COI-iSTRUC'TION::.i .
'l rcll 31.sel geclodl Ycr ( No O Bteo ", "..'.,J.7t.PAlO3/4l'i''J':r ,,.... ,,"-........'1.00.. . :.-.-.. ,* -.-....i.?50 .-...............-td
.. . .urtr.. rcrl p;orlrlcdt Yor d NoO
llJTo -u.r dqatb t.-...... . . ... ]0Q.-.-..... ..- r..
.r..t^t u..a to .-t:......-..C€.[IlgnI.....-...-....
d rn, lt..tr conteln unurrblo rtlcrl Yo O llo O
rr rurlatr .rrlir u...1 !
g tt rrmor.tal ln Dlrrc !
Ycr
Yo
o
o
g(
o
No
llo _-_- IL
TO) \\'A'tIIR LI.iYEI.S:
rtlc lrvrl 4 50. ...... t.< t<lor lrrd rurircr
ltltn Drorsrr .... let rtn,r leod rurleo
D. u. - ------
\\'..11 l)rillcr'a Strtcment:
This wcll was drillcd undcr rn1' sul'crvirion, rnd thlc r.port lr truo
rhc bert o( my knowlcdgc and bclic(.
l,l o rn c .......... G r:i-ns h nu Dri..l. I .!.ns..-l r.q."-._ _
uta[.,"ulifd"'
flr rr
)c trECtilvHt):(ll) [Lo\\'lNc \.icLLr
Coorroll.d by (rbxl I Vrhr O
C.D O' fl.; O tloCootrol
lrn rrll ler\ oround cerlar t Yr
City,
o
o
o .19
usE OTltrR r:nz rou ADDlTlOr.iAL nf,u^arit
I
T. It...
Water Well #3
ITBI'ONT OII \\'DI.I, I)III[,I,DN
STATIi OF I.'1],\II
u.. !v'lga] (0!)-fiBg ),__I
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I
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T
Apgllcrtlon
rllolm No.
a:0ordlrroti.
(l) WDLI. O\\'NDR:
u.-o .EDe f 8y...-Eue 1 s....Nu cJ.e a.r.r.-.IDc.
^
-:: j-1-g391lg,.-qLqlg!!=---
(2) r,ocATrON oF WELr,:
countv S A.n .. JU aD. --.. "..'i1.u.,rli,i..nfi.,n
#'J 1/roo ..,, f:, ..Je0g.... r*t,,.m.....88..cor,",
ot scsrron 28........ r.....37....-'. n ..2?.--.-E Eltru
our s.ordr nor nertcd)
""J l " "t ' " ';6'--'-'{f l(*
('ttlk'
(12) IVDI,L TDSTS: ;".lii;l;l1,jl.l,,:,,;l1i:,". rn ,Hr rh. *r,cr revcr rr rov.
rVor r rrurnl trrrt rrrrdct y", df No [-.t rr ro, t,y wuomr...E1L9fEy.....EUg]g........
yr"ro,.. .?1t5. .......... sr|./nrtn, *,,u ....'f l 5 .. lst drrrdorn ,rr,* 2 . . trourr
Itrllcr lort grl./mln. rv1th......................,.. !crt drrvrdoro r((rr.,borrrl
Tcm}cr.!ur! of wrtGr.............. Wrr r cbcmlcrt rndTrlr rnldr ? llo e
--
l#s
(;liNEnAL ST-{Tllt!E,\T: Repott of well drillcr ls hereby modc nnd fil,rrl rrith tlc Stntc llnginccr, in rrccortlnnce with the lsws of lJtah.
reports constitutes u misdrlmeanor.)
tr
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(3) NATLIRE Olt WORI( (chcck) | Ncr wc1 il
Rcplrccmcn! \Ycll Q Deponlng e Rcprlr f] Abrnrlon e
lf rbandonmcnt. dcrcrlbr mrtrrlal tnd proccdurc:.
---
(4) NATIJRE OF USD (check):
Domqtlc E Indurtrlrt fl, Uunlclprl p gtocLwrtGs tr
Irrlcrtlon 0 Mlolnr O Orbcr O Tot Wdl O_--
(5) TYPI. O!' CONSTITUCTION (check):
Botrrl il Dus
Ncrv O Rojcct tr Urcd tr
Cebh tr Drlvm tr Bon{ tr
-
(6)- CASING SCIIEDULE: 11.o.6.6 6 w.t.rrr diI -.. Drrm. rrcu-.---0-....r*, ...-1.250r-;""...-r1fl
Dlrm. lrom...-.--_..let to...._._.__Jal Grgr.. __
[)lrm. lrom.._____...let to-..--..--.__Jc.! Geilr__.
Tfpc ol Dcrlorrtor orat.---___.._._
8la of pcrloretlonr....---.-.-.._-_...lncba by
-.........---.---.pcrlorrtlont lroo_.-...----.__._._.Jmt to_.-- rr:at
.--.,.......-.......Dcr(oItlonr (mu_.,-..._-_......---.._..lwt to.__.,__._to.t
...-.........--....9crforrtlonr lroa__.-____-__._._._tmt to. .trl
-,,-.-.-.-..Dcrlorri,lon! lroE--....-.---.--_.----lxt to______ rcat
.- -...--,-.pcr(orrtlonr froa*_.--__..._..__JEt to..._____.._lot
(8) SCRBENS: wcrl r*en tnrtrlrcrrr y, tr No S
Xanur.cturcr'r I'lror,.----..-,...-
Dhn. ...........
lVrr e rrrrhro rcrl gmvhlcrl I Yqr X
To whrt,lopth?.... 1 25O........-...........r*,
ltarerlrl urcJ to rcal: ... -0g,Bpnt..
Dld rny .trrt. .ontrlil unrraoLlc s'cter? Ycr O . N; i6
Tnrc o, $.tcr; . Deptlr ol atrtti__-._-...._.
Mcthod of .r.llng' rt..r. off :.......-.......--....
$'rr rurf lcr-e r:rlnrt urtrt ? Ycr O
\[rr lt ccrnerrle.rl ln plrcol Yo O
worh rrrrtat J-q.It.g ?+ .. - ..........., ro.-Q-Qr:,,n,pr.,",r .J.u]-X--aB-.--. r
(14) PUltr,:
!lanulecturcr'r Nrnro
D.Dth to Dunrp o! lowltr..... ......,... felt
1,|'ell I)rillor'rr St atemcut :
This rvcll rvas drillcrl undcr.nly sulcrvision, an<t this rcport ls trthc bcst o( rny knowlrdge und belirf. :
(Pcrron.. flrnr. or corporrtlont (Ttp. oi prlot,
Arlrtress ..4 2 6i .-. Gr:. {rh a.8... C t. t ., -. Bo u lr]e L.- r. - C O-. 8O}(L}.-
(Wcll Drlllcrl
r.icense N..6.-?.4-...(Q.q.].p-). Datc.---.--..-... Aug,us-L..-L-.-.....-, l0
NoO
No llNotr
( IO) WA'TDII I,E\III]I,S:
Strric rcscr 605 .. rer lnros lund rurtro o^,.8:.]-:-9.9--
Arterirrr lr'..JirrrG . ,......-.. lcct rbovc lrnrl rur(rcc Datc
t,oc tatictitvEtr:(ll) rrLolvING WIILL:
Controlhrl by (che'LI Vrlvr O
Cro t-l Flug O No Control
flrer wcll lcrh rrounrl culn3 I Yr
o
o
,0
USE OTIIEII SIDE FON ADDITIC)NAI, NEITAIIKS
T
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Water Well #4
Iilit'0lt't' ol,' \vlil.l, l)tlll.l,Ett \
.\r,prrr.rrurr,,,,. it!,ll.llt,)[ (tlll:::(r'-tyl
lilulrt llr,.
(:.nrrrllr,nrd Il(,.
(1.2) \\'l,it,l,'l'l,iS'l'S: ljl:i'i::i:ll l;,.i1:",:'i:i:"''c
ru r'l-'l. trrc
Wr.r r r,ur,,u tt:,t urr,le? Yt.r $t ll' l.l lf ru, t? trlrorlr f [ff tf'gy
?r-*e-
.rrr, llJ lt.t--ll a)
irirrrlt,..t ..
.ur"rJ.,.l I !' U.
rn1rtctl,,,, lihcrt
.,r,lgl
.l'l'A'l:l': i)1,' lJ't'i\ll ^..
.:1
I
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) \\'lil,l,0wNlllt:
i.,c llier'iiy...l\rcl.s llug,Iesr:, - Illli' . -" .'
:r) r.ocA't'loN ol" wtlLl,:
,,,,,,, liiit't ,-lu-3t11 .
"rtir I ()0(i r*:r,
.Lt ll
iir'. 1, ,'. '."' . 'l'
,r r\',,r.1;i rrt '.!r,lr.ll l)rrrtlr .lr illlrl . l.d2Ll . t*,1. llrr,th u( c.rurllulc.l *.ff....Iij'110..
N0,l'l.i: l,lurc rrr "X" lrr tlr.. rprco ud c'rrl,lrrll.)n uf rl,rcee Dcc.lerl to rlerllt,rtc tlr. r4.L<.i.
"r u",,t,i""tt"u ,l lrrtcrllh crrioultgr".l lrr crclr JctitL ltrtcrvll. Urr.lor llUttAltliS rrrrhr el
rltrirrl.l.r I0t.!u rl! tu o.:rUt.Ju[.td o, rt'LtrI otrrl tlrc c,,lur, !lt!, lr.lurc. ttc.. Cl rurt.rirl
duurk.rrJ ltr clclr rlcptlt lrttrlrl. l.loc ril.lltl.rrrrl .lrrg! ll rerrlcd.
shl.r lcYsl lr l.,n'
f'uo I:r
4il 1..,'rrrr-i.t.r r 21tl xrl./r,rlrr. urtrr . i.i'/(-)...,,.
. g"1.,'t.rirr. rvltlr.
,(dt d..wJolYn llt!a..
. .. lccL JrcwJowtr rltcr
!.u.r.r. [lutt--..-...-..-.......-.. ..
ilruurrrl W*t!r Uuuln
(lc"vc blrrl)
6rli-(1 ,**,' r..,,lilu s t
*ri
':i i x
,l(
s
,)/\ l.: Sl.llU
{:.:: ..
*O*O(otrtre
.-::;.:.. ,.--.;-: j--:::i:::-;:-:
-.ll) I l;\'t'tltlti Ol" \VOltli (t:lreclt) i ircrv wcu hl
icrrl:,.:.r,rrrrl \','.ll [-l l)rtlurtlnu i-l llcl'rlr [-] 'rfbturluu [-l
I nl,ii,.l.,llrr.!r,t. rlca(ritd lrlrtcrlol rtrrl [rruccJuro: ' '_ " '
----..-:-#
.,1) N,lTtlltlt OI" I'JSIi (chcck):
-- r-
I
u
,8
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EI
tacoo:,ureurlr [] Iudurrrtrl [l lturlclurl [] Stuckvrtor
..rlccti,rr [.] Mlulrrg fJ Odrcr E! 'l'crl Wcll
,cct (:Bco.---.-.------
Itoirci fl
(?) PDItITOItA'flONS: I'rrtorrlcdi Yco o NoE
)lrrr u( Urlrli,r.rt'rr uu('\t .
ilec u( per!,rr:.tlolrr '. .. . ....-.. .. :... '' " 'lrrcho by"- -'-""'- - -'-""" "- lucbo
..... . .. . . gr:t luruthtnr troru'. -.--""' " "-" " ""'tct to"" - ""'--""-''- lat
... .... ... purloreth,trr lronr...-" '- " - '" "" "tcot to"-"'-" """'-"'"'-"lcot
purlorrilolrr trum --'-"" " "" " " """tet tJo .'""'-"-'--'-"-"" -"'ltoi'
. gtirlufa!lullu (ruill.--,..--..-.-.fcct to-......' ..-.....----.-.---.rsa
8) SCIII|IINS: wt'lt srrcu,r lurroll,,Jt Yor G No )tDl
.trruttr(lut!r''! 11nttto...........
iilut oirc
... .. . Uu.lcl No...... "" - " "--
l+,.,i r.orr............... ...it. lo. -.........-..--.-.
(:) ) cuNrS',l'lttlc'I'lON :
',t'rs ri'.'ll r r .r'tl ltrl.'l l Icr [- l
ir.vsl 1,ht.'.1 lr"ru ""'
r{oc u urtrt..'o ueal pr"si'le't! Yrl El
'l'., rvlrrt .i.,vrlrl 1:15 " lurt
wrrri urarrrrr .. Scp [.. ilil'. L9iiilru
(l.r) l'tltlt':
!lnuu,r.(ttrl dr'0 llilLr.
'l', t.( :
tr l:ll ,\ lr li J
.. Duko I a--t'rr rtrr j1L-i-11t1
-. J.lnr shy-BaeiJr--- ---- - ---
I lr.r r shy_ljj:3 irj_ _d:__iiL.t _.-
- .Sru:rurc,rs.Y-i-I-L e-- - -
-Etl t r:i,l ;.
-lrlrruaho--.-_
Uirrdgu-tr.-
Currr t,lctcJ.!-ls t.i,t,
lI. r..... .
tl
o
Dg
at1-!t:
5) ',l'YPti oF (:oNS',l'ltUC'r'tON (check):
ot!.y b[ Dug tr Jott^d O
.:r5!o u t)rlvrtr EI llorql O.._..'.,..-._..-_-._-a.._.--___-'..__---
:G) CASING SCIIIll)ULII: 't'hrorrrsJ o wrrrtod [f
:.) :)l ()." lriaur. truur--..J-.-.-...r.'r u'li2$O" t*l G'co'-5'1lI'-'
. .. [tinrr. (tor,r.._........-.-..t*t to....-..-..--....,.rcc1 G18...-..--.---..
-I
I
Urql [1 t24
rt,.r.:rial rru.,l lr tc.l: 0OtiC:1t61'Llf
;i,l r:rlt 6tlila cJlrt'rib u'lu!ul')is irut''r I
. tl,r: ul tutrt$r : . '
i.lrti,.,.l r.l r.:,lir'r r'rr"lo uil :
.\'di ir.l ,r.(r 1 6;,i1'.; l"r'l I
t),r1,tlr ol ilLtstl.....-.... . .li
[cr II
Irr tJ
Ir
l:l
( t(i) \\'.t't'lilt I,llvtil,s:
'.,rt,., ,, ',, 'll [i0
\rlo.ir,r l,t" "ttlc
.:=:-ji:i::: -. -.::i::-:--:
l.()(: ltl::i't::lY l':lt :
Irct Lrl.rw l"rr,l gurlrt':1.,.,. .t.L.:2.:!11.1
Drte
(U) II.OWING WIiLL:
()orrtr.,llc,l LY (cLwk) Vrlvg t'J
!:(u tl lllui i.l No Coltrol
l't,r'J ri(ll lco! rrrrrrl'rl ':uiirx I Ysr
llo
l,Lt.lI l{ !ur,,I rrr Uurvl."
:=::J;i:=. :i=:::-J: :----
\\'.ll l)rillcr's SIutcrrrctrt :
'l'lris rv,;ll,rur,lrillt:rl lll:tluI lrlJ'itrl,(:lviriull, trlttl tllis tclr';t'L i:r
tli,r lx.sitrf lrly l(lrowlc(lUu rrtttl Luliuf '
ll,,,rc .. Or:rui;Lco...Dr:-i.LL:i.rrar' Cr). r " 'l'111;." ^iit::':;". 71.,.i -u, co.r^,rriii'|r. I i'r'ipG -' vrl
Arr,rrr:ss 4 2l;.1. ..Gr:altE,n Q.l;1 , iilr r'rI ltel'. (J.t'l i:!')l::Q7" " "" "
(Sigrr,:rl) . ..-;, ,:.f ::'. ,,1 ,:i1, '' 'irJ.ii i;.,ii;i " "'
u;.iti ()'frr!:lr slt)!: l r)it AIJl)rl'loNAt' ittil'IAl(lili
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cil
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]
Attachment J
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Co rz?{ ,to ? to
Dot*o--,
Envlronmental Servlces BORING LOG
Boring No.
H uJ'te
project: Uravan C u. (. F l, I \. i g ,1 Geolooist : F. A. peel Sheet I 1ol
Client: UMETCO Minerals Corp Date: lt/L? /q"-No.
Well Construaion i<a)8e
.,
-/D
.
-a
-7o
-qo
-fo
-lo
?0
-loo
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Attachment K
Environmenhl *rvlces
Hole No.:
WMMW.16
Sde€ C8g
Cem nUBeniodta
Gaol
schodrd ,10 Pvc
K.9.lE-{ crdsrc
X. 5.1E.5 m/sec
Centelizor
K.7.88.5 cm/toc
Bontmite Seal
10-20 Colqado
Silic! Sand
K. 2.0E-5 crvsrc
Sand: quarts,Bddilh bown,f m.graimd a.trounded
silty.
Sandstone: qwlz. r.ddsh brcwn, vory fno graimd, luhond, rilty lri$lo.
Sandstono: .qun:, light b/ll, wry fim. to f m.grainod, &bangds to angulc,
risble, good ints grarulr po.olity.
Sandston.: quanz, figln hrfl to light gray, very fn] !o fine.grs'ned,kaolidtic.
msivq to thin b€ddod,ndrgh c(E bo&ing tu pceity.
Oaystom :' lighl gr8y, 3illy, 5fighdy 3andy,thin 6bom€{a prtinge. hard.
gifffn?r*n'' utht srav, verv fno saimd, rutronded, kadiniliq lNn d6s
San&lone:.qwrtz. light yollil gray, f ne to medum grainod, sukondod
lGdrnrtc, t ron 3lrnrr{, thrn dcs boddng.
Sandstoo: quadz. light gay, mdium to coso graimd, kaolinitic, codomraticp6bu$ ro angulr lithic lrsgmnts.
Sandsime: qEdz, lighil 9r8y, lino i,o mdum grdnod, $Sr@ndod. silty, teo
intdg[anula pq6ity. Gaiondly ffio Eaimd. @siond pobblo.
Sandstms: qustz,light gr8y, f no. to mdiuegrdnod, sub(ond to r@ndod,
Conglffiala; &owni8h gray, sngtls to 3ubanguls, chofl A s8ndstona dests,
Sliltrtom : grErirh gray,endy ln pat @dond iron staidng.
San&tonc: qua.lz, light g.eorieh gray. vdy lim graioed silty.
Shalo: greenish gray, lhinbsdded sdt. bontoritc.
Sandstoo: quailz, light buff io light gray, vry ftno grdned, sub anguln. tra@intorEandupqcity. limrito cmqeatims. ra€ iron stsinlng.
Sandstd.: quarlz.light trqdsh grey. fmgrcined. thin q63 beddng. teo
porosily, bo@mring goori3h gray e very fim graimd tilard b$e,8halc
parting at 64'
Smdstoe: qunz, lighl bqnish gGy,lim g:dn€d. w€ll sqlsd, g@d
int{g.andarpd6ity, 1'rhalo iron stained rhde prling aliop.
Sildsime: quadz,light gray, gradng dtrnward lrmydy fno g.ained to mdiu,
grinrd, srbriundod, lay.B vCl u!od, kelirilic, cmglomratc in put tra@ iron
starnng.
Sandstooe: qusnz, fight grEr, mdium graimd. sbangds to srtr@nd, well
3qted, kslinilic, Fa io good lnlergrmds porosiv. a@i6d c@Ee sand
,dnr ad pebuo conglomerale rtlngeIs, lsa ks atdning.
f; *--.,*-,
III I III I IT III III II
Sed: qu8rt, redd3h brown, fino to mdum grdnod rund !o subrond.
Ss&lme: qua.E,light butl. 6m to medium grsinod, sbfond, kelirilic, tighlE thin limostone lenses.
Satdstom: qrrtr, light 9r8y. very lloe. io fino grdn€d, sub.ond, keliriilc,
lron 5tsin, lriaua.
Shde: gfeerish brwn to g,sdsh gray, lligh{y silty in p{t bentoritic, 8dt.
Shale: greenish trwn io groenish gray, Blighiy silty in paIl bsntmitiq solt
Sandsbm: quEE, light gray to light gre€n EEy, vory fre. to to fire grainsd,
3ut[ilnd, ksolimitc. t iron stdn, oe ch6rt petile.
Sandstme: quartrr greenish gray, f na. to mdiuDordn€d, subrond,onglmatic (chod ud litlic petblos) lriaus, d8rp.
Sandsiom: Wrts. light gray, lino.grained, subround. fair int€rgrarulapq6dy.
Ssdstffe: qraE, lightbuf,.mdiufr tovory @sso-gtaimd, utrdrd,
kaoliritiq c mdomalic, teo iro sldn.
Sand8tqo: auarE. lighl bdn gray. groon Eray at top. fne- gEired. strbr@nd,
rfills@s, interbcdihd with. onggfiomtate, pobua (chon & lilhiclragm€nB).
L6l Cde
Smdstmc: qrst, light gray, fine-orsined, sub(ond, k&lidtic, hrd, M3e
aand gdns ard pebde8 in sm thin bods, top f it pebble mglmrate.
very sandy.
thalc: dskgf.cn, illy, !dt..{'
ii ",, -'.- /( .)' '... ,.:'
,\ " a- "'\l" : ,, .,.i
<+'/.*:,'zro
a1 {
Scracnad lrtawrl
\
I I I I I I I I I I I I r I I I I I
\ 5".-{-
r,"* /-,, 1
j r--. ,,:,
"'7 :: n
.i
:'.,.
(:,
t "."LY
Sand: quartz, red broYvn, Bllty.
Shale: blaclq platy, had.
sardslone: quartz. llght bull to llght gray, subround. l€olinitic. trace
lron slalnlng >>> less loward baso, Occ llthlc psbble. occ thln
Ehalo parllng.
Sandstone: a8 above >>> very conglomoratlc ln part,
pebble slze chsrt an llthb lragfuontE.
Sandstong: quanz, bull, lins-grained, Eubrunded, BlEhlly
argilaceous, kaolinltlclraco hon stalnlng,
Sandstone: quanz, lighl yollow gray, llne-gralned, subangular.
lron stalning,
Sandslons: as abovo >>> v6ry llne.gralned.
Siltstono: light gresnlsh gray, argillacsous, platy,
SanGtono: quartz, llght gray, vory lin&gralnsd. subar€ular, lracs
kaolinlte.
Sandstone: quarlz, light gray, vory llno- to m€dlum-gralnsd,
subangular,occ p€bblo.
Sandstone: aB above lntorbodded wlth Conglornsrale, psbble
(llthlc), llghl gray, sandy ln pail.
Sandslono: as abovo.
Sardslono: quanz, greenlsh gray, llno-gralned, Bubangular, to
subound, kaollnlllc, fdablo, ldorb€ddod wlth occaslonalthin Ehale
hy6r reddbh brcwn, solt,
Sandstono:. quartz. llght green to greenlsh gray, vory lino- to lins-
gratnoo. suDrcuno, argltacoou8.
Corplomerats: pebble, lithlc fragmenls. vsry |rlable, sandy to
vsry sardy ln part.
Sandstono: quanz, light grosn, very flno.gralned, arglllaceous with
thln rod ard gr6on shale slringors.
Sardstone: asabovo.
Scrccnrd htlrvd
Shale: reddish brcwn platy, soft.
I I I I I I r I I I I I I I I I I I
Sand: qua.lz, rgddlsh brcwnJlns-gralned, slhy.
Sandstone: quarlz, llghl gray, llne-gralned, subround, kaollnltlc.
Sandslono: quanz, light bult, very llns- to medium-gralnod,
subangular to subround, kaollnltlc, lron stalnlng.
: as abovo >>> lsss lron stalnsd.
Slllstone: quartz, msdium gray. sandy hard.
Sandstons: quanz, flght bull, vsry line.to modlum-gralnod,
subaruular lo 6ubround, kaolinltlc, lron stalnlng.
Sandstons: quanz, light gray to bull, coarss-grainsd, subangular to
subround. poo,ly sonsd, kaollnitlc, rsd iron stainlng,
conglomsrallc (ch6rt & llhlc psbblss).
Sandslone: quarlz, vsry line. to llno-gralmd, subrourd. very
tracs lron staining, occ Ehah paning, >>> very hard al base.
Sandslons: quartz, ligh bulf, vsry line- lo modium-gralned.
kaolinilic, rsd and brown lron staining.
quanz, llght gray. vory fine- lo line-gralned, subround,
Shals: rsddlsh brown, platy, waxy, solt.
Sandstone: quarlz, light gray,lins- lo msdlum-grainsd,
Sandslono: quartz, light groonlsh gray, vory ,lno-gralned, subround,
arglllacoous to vory argillaceous, thin gr€on shale parlings, waxy,
reddlsh brown shalo parllng at base.
Shale: as above.
Sandslone: quarlz. llght groenbh gray, lin6-graln6d, occ medlum,
grained, subDund. Kaolinith.
Scmn.d lntml
Shale: dark reddish brown, solt.
Not!: wrl wzs logErd b.fqs th! rcll Edrxgsd
I r I I r r I I I I I I I I I I I I
Attachment L
I
I
I
t
t
I
I
T
I
T
I
I
I
I
t
I
I
I
I
t
I
T
T
t
I
I
I
I
I
I
I
I
I
I
I
t
t
I
LANDesign August 28,2000 Survey
( Adjusted to Local Elevation Datum )
Point No. Northing (Y) Easting (X) Elevation (Z) Description
459
517
523
558
16
17
18
21
22
23
24
25
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
26
27
318959.04
322140.21
320772.64
322415.34
325672.14
325671.85
328345.68
324451.93
324491.73
325121.59
325121.34
324168.39
320977.29
320976.89
320863.28
320862.99
320988.62
320988.26
320991.42
320991.17
321115.77
321115.39
321664.28
321663.86
32183'1.35
321831.07
322003.12
322002.88
323051.11
323113.81
3231 13.59
2s78773.28
2579468.12
2576214.19
2579590.24
2579330.34
2s79330.42
2583347.34
2s81423.30
2581423.33
2580133.00
2580133.04
2580424.68
2581030.27
2581030.27
2580890.44
2580890.59
2580872.88
2580872.64
2580905.88
2580905.96
2580916.23
2580916.1 1
2580918.82
2580918.88
2580874.18
2s80874.19
2580859.23
2580859.24
2579445.75
2577189.09
2577189.03
5584.66
5623.1 5
5608.22
5623.78
5645.76
5647.63
5671.39
5653.48
5654.96
5656.24
5657.51
5650.30
56'19.93
5621.40
5617.56
5618.58
5619.87
5621.07
5620.77
5622.33
5622.76
5624.72
5631.21
5632.23
5636.11
s637.59
5638.7s
s640.70
5629.71
5631.37
5632.78
CONTROL POINT
CONTROL POINT
CONTROL POINT
CONTROL POINT
GROUND
MONITOR WELL 1
WATER WELL 4
GROUND
MONITOR WELL 19
GROUND
MONITOR WELL 18
WATER WELL 2
GROUND
TEMPORARY WELL 4-8
GROUND
TEMPORARY WELL 4-1
GROUND
TEMPORARY WELL 4-7
GROUND
MONITOR WELL 4
GROUND
TEMPORARY WELL 4.2
GROUND
TEMPORARY WELL 4-3
GROUND
TEMPORARY WELL 4-9
GROUND
TEMPORARY WELL 4-5
WATER WELL 3
GROUND
MONITOR WELL 1O-2
Page 1 06120120019:03 AM
LANDesign August 28,2000 Survey
(Adjusted to Local Elevation Datum )
Point No.Northing (\J Easting (X) Elevation (Z)Description
I
I
I
I
I
I
t
I
t
I
I
I
t
I
I
I
I
I
I
45
46
47
48
49
50
51
52
54
55
56
57
58
59
60
61
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
323107.20
323106.77
322120.44
322120.47
322115.09
322114.89
321969.75
32'1969.45
321335.10
321050.98
320245.73
320245.47
319157.O2
319156.70
319296.61
319296.27
320519.52
320519.12
320683.56
320683.29
320681.73
31 9821 .1 I
319820.94
318453.61
318453.44
317341.02
317340.58
316871.92
316871 .69
315491 .01
315490.81
2577185.50
2577185.65
2576575.78
2s76576.09
2576580.78
2576580.73
2576210.03
2576209.93
2578052.36
2579124.47
2578798.10
2578798.10
2578142.45
2578142.39
2s77451.64
2s774s1.4s
2577478.63
2577478.42
2s76665.20
2576665.06
2576654.87
2576661.45
2576661.65
2578892.11
2578892.21
2576418.05
2576417.89
2574794.93
2574794.90
2576169.95
2576169.80
5631.42 GROUND
5632.82 MONITOR WELL 10-1
5618.38 GROUND
5619.66 MONTTOR WELL 9-2
5618.41 GROUND
s619.88 MONTTOR WELL 9-1
5611.23 GROUND
5613.14 MONITOR WELL 2
5612.52 1999-4
5613.18 1999-1
5608.51 GROUND
5610.80 MONITOR WELL 11
5598.13 GROUND
5s98.'14 MONTTOR WELL 14
5599.18 GROUND
5599.91 MONITOR WELL 15
5609.18 GROUND
5608.97 MONITOR WELL 5
5608.60 GROUND
5609.15 MONITOR WELL ,12
5607.89 Movement Moument 324
5585.53 GROUND
5586.72 MONITOR WELL 16
5573.81 GROUND
5575.09 MONITOR WELL 17
5552.88 GROUND
5554.83 MONITOR WELL 3
5560.52 GROUND
5562.35 MONITOR WELL 21
5539.11 GROUND
5540.60 MONITOR WELL 20
Page 2 OOl20120019:03 AM
I LANDesign August 28, 2000 Survey
( Adjusted to Local Elevation Datum )
Point No Northinq (\') Easting (X) Elevation (Z)Description
I
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78
79
313968.87
313968.74
317984.21
323700.20
324139.62
324226.52
325394.68
319972.68
318980.24
319037.99
31931 1.68
320095.83
320771.26
319148.41
319345.61
318895.65
319004.06
320448.27
320103.24
319348.60
320407.88
321335.34
322096.90
320595.1 4
320594.77
320344.09
320343.83
320404.65
320477.53
320479.45
319353.88
321542.51
321510.94
321267.15
321258.88
321344.24
322095.83
322122.05
319008.34
2580980.87
2580981.05
2582422.92
2577927.29
2577358.60
2578536.75
2s77857.34
2576120.10
2574710.18
2578787.27
2577402.54
2579454.23
2576221.47
2577339.57
2577230.88
2578685.49
2578958.93
2s77840.87
2579548.90
2s77465.23
2578074.90
2578568.1 9
2579082.78
2580936.49
2580936.51
2s80894.17
2580893.58
2578088.47
2577645.60
2577634.29
2577472.34
2577283.95
2577394.83
2578377.73
2578406.93
2578566.48
2578065.20
2578066.87
2578876.42
5516.08
5517.47
5578.78
5637.89
5623.42
5646.63
5643.11
5603.72
5574.66
5586.74
5572.39
5607.54
5607.1 4
5565.96
5570.41
5584.66
5581.36
5608.22
5607.48
5s98.77
5609.21
5611 .79
5617.84
5612.30
5613.49
5607.33
5608.78
5609.75
5607 63
5607.84
5598.45
5612.40
5612.64
5612.72
5610.26
5611.89
5618.62
5620.34
5584.90
GROUND
MONITOR WELL22
WATER WELL 5
WM 42A
WM 42
WM 43A
WM 43
WM 22A
wM 22
SE CELL 44
SW CELL 4A
R.J. #66
R.J. #133
SW 175'RP-S
SW,I75'RP-W
SE 175'RP-S
SE 175'RP.E
NW CELL 4A
NE CELL 44
LEAK DETECTION CELL #4
LEAK DETECTION CELL #3
LEAK DETECTION CELL #2
LEAK DETECTION CELL #1
GROUND
TEMPORARY WELL 4-4
GROUND
TEMPORARY WELL 4-6
SLIME DRAIN CELL #3
CELL #3 CONTROL #1
CELL #3 CONTROL #2
SLIME DRAIN CELL #4
CONTROL POINT CELL #2 WEST
CONTROL POINT FLANGE IN PVC
CONTROL POINT NW COR SPILLWAY
SPILLWAY CREST
SLIME DRAIN CELL #2
GROUND ROD SOUTH CELL #1
AERIAL PANEL S. CELL #1
AERIAL PANEL SE COR CELL #4
80
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
1 000
1 001
1002
1 003
1 004
1 005
1 006
1 007
I
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I
1 008
1 009
1010
101 1
1012
1013
1014
1015
1016
1017
1018
1019
Page 3 06120120019:03 AM
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Test Well
Jones Well
Jet Pump
Former Leach Field (near office)
Approximate Coordinates
Misc. Features - White Mesa Mill Site
Eastino Northino (all coordinates are approximate )
2580941 322672
258'1350 318950
2581250 329460
Old Leach Field (scale house)
NW
NE
SE
SW
2580270 322275
2580360 322275
2580360 322165
2580270 322165
2580768 322290
2580789 322290
2580789 322234
2580768 322234
NE
SE
SW
Current Leach Field (east of Mill yard)
NW 2581225 322517
NE 2581325 322517
sE 2581325 322357
sw 2581225 322357
Land Fill
2581050 322950
2581125 322950
2581125 322820
2581050 322820
2579420 322625
2579465 322625
2579465 322380
2579555 322335
25795s5 322155
2579420 322155
MW-13 2577666 319558
MW-6-1 2579052 320530
MW-6-2 2579052 320530
MW-7-1 2578233 320862
MW-7-2 2578233 320862
MW-8-1 2577346 320876
MW-8-2 2577346 320876
D&M3 2580085 322725
D&M9 2581372 327370
GH-94-'l 2576490 320510
GH-94-2A 2577310 320340
GH-94-3 2577565 320030
GH-94-4 2577420 319610
NW
NE
SE
SW
Sedimentation Pond
NW
NE
A
B
SE
SW
Abandoned Monitor Wells, Bore Holes, and Angle Holes
Feature Eastinq Northinq Elevation ( all coordinates are approximate )
5570
5588
5588
5588
5590
5590
5634.3
5679.3
5583
5579
5572
Attachment M
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PROPERTY
BOUNDARY
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SHOWNG WATER LEVEL IN FEET (AMSL)
IEMPORARY PERCHED MONITORING WELL
SHOWNG WATER LEVEL IN TEET (AMSL)
----5585 WATER LEVEL CoNTOUR, DASHEo WHERE UNCERTA|N
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EXPLANATION
WATER LEVEL CONTOUR MAP
DECEMBER, 2OOO
WHITE MESA URANIUM MILL SITE
Approved
SS
Date
6120101
Revised Date Reference:
71800020 1
FIG.
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5570
5560
5550
5540
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5520
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5500
5490
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EXPLANATION
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SHoWNG WAIER LEVEL IN FEET (AMSL)
----5585 WA]ER LEVEL CONTOUR, DASHED WHERE UNCERTAIN
MtY-22 4 :5445 ,/'
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WATER LEVEL CONTOUR MAP
MARCH, 2OO1
WHITE MESA URANIUM MILL SITE
Approved
SS
Date
6120101
Revised Date Reference:
71800021 1
FIG.
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BOUNOARY
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SATURATED THICKNESS OF PERCHED ZONE
DECEMBER, 2OOO
WHITE MESA URANIUM MILL SITE
Approved
SS
Dote
al20l01
Revised Dote Referen ce:
71800023
FIG.
1
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Uulr'/
NOIE: PUMP IEST (DRAWDOW{ OR RECO\ERY) RESULTS
ARE PLOTIED ITTIERE AVAILABTE. TV}IERE NOT AVAILABIT, SLUG
OR CONSTANT HEAD PACKER TEST RESULTS ARE PLOTIEO
PERGHED ZONE PERMEABILITY
BASED ON PUMP AND SLUG TESTS, AND
CONSTANT HEAD PACKER TESTS
WHITE MESA URANIUM MILL SITE
Approved
SS
Dote
6120t01
Revised Dote Reference:
71800024 1
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5490
5480
5470
5460
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. T'W-11 PERCHED MONITORING UELL SHOUNG TOP OF
5513 BRUSHY BAS|N rN FEET (AMSL)
IEIIPORARY PERC}IED TIOI{ITORING ITELLo cozz SHoHNG Top oF BRUSHY BAstN tN FEET (At sL)
-5400----
coNTouR UNE tN FEET (Allst-). DASHED WI|ERE UNCERT IN
5430
5420
5410
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5396 ,/'
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* ASSI'UED TO BE AT ELEVATION OF
BASE OF SCREENED INIERVAL
CONTOUR MAP OF
TOP OF BRUSHY BASIN
WHITE MESA URANIUM MILL SITE
Approved
SS
Dote
6120101
Revised Dote Referen ce:
71800022
FIG.
1