DSHW-2018-005201 - 0901a0688083ef7a

Dyno Nobel Americas
Scott Anderson, Director
Division of Waste Management
and Radiation Control
195 North 1950 West
PO Box 144880
Salt Lake City, Utah
84114-4880
DYNO
Dyno Nobel
DYNO NOBEL INC.
A business of lncitec Pivot Limited
2795 East Cottonwood Parkway
Suite 500
Salt Lake City, Utah
84121 USADiv of Waste Management
and Radiation Control
JUN 0 7 2A$
Date
Re:
4 June 2018 Dsrrvl-20t6- oQszol
SWMU Corrective Action
Dyno Nobel, lnc. Lehi Site UTD00908927 ?r,/
Dear Mr. Anderson:
By way of this letter, Dyno Nobel, Inc. (DNl) is submitting this RCRA Corrective Action Work Plan, required
as a submission under the Voluntary Consent Agreement for the Dyno Nobel Site B, Lehi Utah, (CERCLIS
lD No. UTD009089277).
This Phase ll RFI Corrective Action Work Plan represents a work product that was written in response to
letters received by Dyno Nobel, lnc. from the Division of Waste Management and Radiation Control (dated
August 22 and November 14,2017) and notes from a December 13,2017 meeting with your Staff.
The Corrective Action Work Plan submitted today, references many previous documents submitted to the
Division over the years regarding the Solid Waste Management Units (SWMUs) at the Lehi Site B facility
and DNI incorporates those documents today by reference.
Additionally, the Work Plan includes a Groundwater Monitoring Work Plan, mutually-agreed to be submitted
to the Division, for the purpose of investigating a potential groundwater impact from beneath the locations of
the two (previous) Burn Units (SWMUs 3 and 4).
ln addition, a Statistically-Suppoded Background Soil Sampling Plan is included for directing the coltection
of defensible, background soil sample data, to be utilized for the comparison of SWMU verification soil
samples, and ultimately the basis for DNI to request No Further Action (NFA) from the Division.
DNI respectfully requests a focused and timely review and approval of this RFI Corrective Action Work
Plan.
DYNO
Byno Hobel
Thank yau in advance'far yaur consideration of an expedited review and approval. lf you have any
que$tions, comments, or concetn$, please don't hesitale to cantacl me atyour canvenience"
$,egards, ,1
^ l. ,/\\^'\^it .r''..'\
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'tr+/d Jarai*lo \:
Senior Dnec?dl environment
Dyno Nobel, lnc.
27 95 *asl CallanwCIad ? arkway, Suil.e 5AA
$alt Lake City, Ulah 84121
?hone: +1 &64448-1812
e-mail: F red.Jardint*[e-mail] nonabrll.cam
2
c;lUsers\fjardini\AppDatallocal\Microsoft\Windows\lHelCathe\Content.Outlook\GTVQGSU\ DNlcoverltr.docx
WORK PLAN
ACTIONS
REMAININ
DYNO NO
SPRINGS,FACILITY.
sEcTroN r - rNTRopugTroN:
Txrs Wonx pLAN rs BEING pRESENTED To rHEoF ENvTRoTMENTAL Qualrrv, Drvrsrott oF
Fle,pra,trorq Corqtnol (DWM,/RC\ To ADDREss
Acrroru(s) ro BE TMpLEMENTED FoR Solro
TOGS
BEL
UTAI
(SWMUS) I, 2, 3, 4 AND 7, Toc;TTED wITHIN THE DYNo NoBEL LrTTI SITE B
FAcILITY lN Urnn CouNTv, Ur,q,n.
THE SWMUs rHAT REMAIN To BE ADDREssED wERE ourLrNED rN A Lerren
FRoM DWM,/RC ro Dvtto NoBEL, DATED Novglreen I 4, 20 t 7 FRoM Scorr
ANDERSoTq (Drnecron) (Exnran A).
Tng lerrER SUMMARIZES THE DlscussroNs BETwEEN DNI SrnFF AND Dlvrsror.r
REPRESENTATIrIES FROM PREVIoUS MEETINGS (,INo FRoM MegTITqc NoTES
CONDUCTED ON DECPMEER T 3, 2OI7) REGARDING PATH.FoRwARD AcTIoNs To
BE TAKEN EY DNI FOR THE REM,A.ININC SWMUs AND ALso THE INsTALLATIoN
OF GROUNDWATER MONITORING wELLs AT THE FACILITY. Tne WELLS YI.ERE
SUGGESTED BY TNg DIVISION IN ORDER TO ASsEss ANY PossIBLE IMPACT THE
SWMUS MAY HAVE HAD IN RELATIoN To GRoUNDwATER coNTAMINATIoN.
Txe LertER ALso ADDRESSEs rHE coLLECTToN oF ADDITIoNAL BACKGRouND
SOIL SAMPLES TO BE ACqUIRED BY DNI To ESTABLISH BACKGRoUND
CONCENTFIATIONS FOR SELECTED METALS TO BE EVALUATED AGAINST SWMU
sorI- SAMpLE (Meral) coNcENTRATroNs.
SECTION 2 - SOLID WASTE MANAGEMENT UNIT (SWMU) I:
SWMU I CONSISTS OF UPPER AND LOWER PONDS; THREE PONDS IN
EACH LEVEL. PREVIOUS SAMPLING RESULTS FOR ALL PONDS, WITHTHE EXCEPTION OF THE PONDS LISTED BELOW, DO NOT NEED TO BEADDRESSED IN THIS WORK PLAN, AS THEY MEET ALL RESIDENTIALSCREENING LEVELS FOR ALL APPLICABLE CONSTITUENTS OF
CONCERN (COCS).
FOR FINAL CORRECTIVEBE IMPLEMENTED FORvlIMU'S LOCATED AT THELEHI SITE B, SARATOGA
Sr,a.rE oF UTAH DrpRRTueNrWasTe MANAGEMENT AND
THE REMAINING ConRectveMsre Me.rq^a.oeMENT UNrrs
SWMU I PONDS AND RELEVANT COCS TO BE ADDRESSED:
SWMU I SOUTH UPPER POND;
Ta,ncET COCS : SEI\,IIVOLATI LES, I N CLU DI NG POLYCYCLIC
ARoru^a.rrc HvoRocARBoNS (PAHs) ;
HExIvI.TENT CHROMIUM.
SWMU I NORTH UPPER POND;
T^q.ncEr COCS: HEXAVA,LENT CTTNOMIUM.
SWMU I MIDDLE LOWER POND;
TnRcrt COCs: Hpxavllerqt CnRoMIuM; ANrInaoruv.
Ppn oIscUSsIoNs WITH DEQ STAFF MEMBERS ON DTCENAEER 13, 2OI7,
ADDITIoNAL BI,cxonoUND S^lnapIES wILL BE COLLECTED AT LOCATIONS
APPRoVED BY DEQ IN oRDER To PRo\/IDE THE REQUIRED SAMPLE POPULATION
(nerennED To AS "SrzE" rN THE DEQ l-erreR). IN THrs MANNER, A vALID Tesr
or MEe,rqs HyporrrESIS CAN BE CONDUCTED.
To olre, THREE €) BecxcRouND SorL SAMeLES HAVE BEEN AceuIREo ev DNI
AND ANALYZED IT ALS Le.eon^e.ToRIES (Sru-T LAKE CITY, UTEN) FOR THE
TnncgT METALS.
AN ADDITIoNAL FIve (5) BIcxGRoUND SoII SAMPLES wILL BE COLLECTED IN
oRDER To SATIsFY THE MINIMUM OF EIGHT (8) SAMPLES REQUIRED TO
coMpLETE THE popuLATroN, AND ANALyZED FoR rxe TlncET COC Mrre.ls
LrsrED ABovE (HexlvLLENT CgRonaluM AND ArqrIr"roNv).
Tng pRocEDURE THAT wILL BE IMPLEMENTED TO OBTAIN THE BACKGROUND
SoII- SAMPLES wILL INVoLVE DNI REPRESENTATIVES AND DEQ STAFF
MEMBERS. AT A, MUTUALLY CONVENIENT DATE, PERSONNEL FROM BOTH
ENTITIES WILL CoNVENE AT THE DNI LEHI SITE B SITE AND CHOOSE GENERAL
SITE PERIMETER LOCATIONS ON A FACILITY MAP.Followlttc rHE
ESTABLISHMENT OF THE CHOSEN LOCATIONS, MEMBERS WILL TRAVEL TO EACH
oF THE FIVE (5) IocaTIoNS AND cHooSE ExAcT LocATIoNS IN THE FIELD.
SEMI.VoLATILES, INcLUDING PAHS, WILL BE ANALYZED IN TWO (A GRAB
SAMPLES oBTAINED FRoM rrre FIooR SoILS oF THE Sourrr UpPEN POrqO IN
ORDER TO ESTABLISH THE PRESENCE OR ABSENCE OF THESE COCS.
Tne PRocEDURE oUTLINED ABoVE FoR THE Be,cxcnouND SOIT- SAMPLE
LocATIoNs wILL BE coNDENSED FoR THE SEMI.VoLATILE SAMPLES
AcQUISITIoN BY HAVING DEQ,/DNI MEMBERS SIMPLY ENTERING THE LOCATIONS
wITHIN THE SoUTH UPPER POND.
WORK PLAN FOR FINAL CORRECTIVE ACTIONS TO BE IMPLEMENTED FOR REMAINING
swMU's,LocATED AT THE DYNO NOBEL LEHI SITE B, SARATOGA SPRINGS, UTAH FACILITY(20ra)
TTTE Two E) SEMI.VoLATILE (INcI-uoINc PAH) ANALYSIS RESULTS wILL
SUBSEQUENTLY BE COMPARED TO USEPA RSL (REOIONEL SCNEENING LEVEL)
vALUES AND sotL-TocRouNDwATgR RSL's. rN THrs MANNER, sHouLD THE
SAMPLE RESULTS ATTAIN LEVELS AT OR BELOW THESE VALUES, NO FURTHER
REMEDIAL AcTIoNs BY DNI wIII BE REGTUIRED IN THE SouTn UppEn PoTto oP
SWMU I to r.ooRESS rne Senar-VourrrrE (rNcLUDrNa PAHs) rssue.
AII BE.CKGROUND SOIL SAMPLES AND :rHE SEI\,II.VOLATILE SAMPLES WILL BE
DELTvERED To ALS LABs, LocATED IN Sel-r LAKE CITy, Ur.e.n FoR
CORRESPONDING ANALYSES.
Fon rHe Tesr or MSINS HyporHEsrs, SAMeLE srzE FoR BAcKGRoUND DATA
AND SITE DATA wILL BE EQUAL. TnE Ba.cKGRoUND DATA DETERMINATIoN wILL
BE coNSISTENT wITH EPA BAcKGRoUND DATA DETERMINATIoN METHoDoLoGY.
TnE 95% UPPER CONFIDENcE LIMT (95% UCD wILL BE UTILIZED AS THE
ExposuRE porNT coNcENTRATToN (EPC) FoR THE coMpARrsoNs ro
SCREENING LEVELS.
DyNO NOBEL HAS INCLUDED ^q. STA.TISTIcALLY SuppoRrgo Be,crGRoUND SoII
SInapllrqc PTI.N ^a.s ExnIeIT C TxnT oUTLINES THE PRocEDURES To BE USED
FoR THE ACQUISITIoN AND EVALUATIoN oF THE BACKGRoUND SoIL SAMPLES.
SECTION 3 - SOLID WASTE MANAGEMENT UNIT (SWMU 2:
SWMU 2 IS THE FORMER SpECI^IT PRoJEcTS BUILDING Sunpa.ce
IPTPOUNOMENT. PngvIOuS VEnITIcATIoN Sanapurqc RESULTS FoR THIS UrqIr
HAVE VERIFIED THAT THIS UNIT MEETs .ITII RESIDENTIAL ScngENITqo Levels(RSLS) FoR ALL APPLIcABLE CoTqsTITUENTS oF CoTtcenN wITH THE
EXCEPTION OF ARSENIC AND HEXAvALENT Cxnorvrluna. (AnsENIc wAS NoT A
CONSTITUENT OF DNI OPERATIONS AND wILL NoT BE ADDRESSED FURTHER IN
THIS WoRK PI-IT.N.)
SWMU 2 SURFACE IMPOUNDMENT AND RELEVANT COCq TO BE
ADDRESSED:
SWMU 2 SPECIAL PROJECTS BUILDING SURFACE IMPOUNDMENT;
TInOET COC,s: HExavaTENT CHRoMIUM
NorE: THE AoottroNlu Tpsr oF MEANs Hvpornnsrs B^q.cxonouND Sou-
Se,upttNc Pnorocol (Ser PRocEDURE AND pARAMETERS ABovE), wrtI- BE
APPLIED TO THE coMPARISoN oF THE RESULTS oF THE ADDITIoNa,I SoII
S^q.IvIpI-E(S) oerA.INED FRoM THE FLooR oF SWMU 2.
WORK PLAN FOR FINAL CORRECTI\|E AGTIONS TO BE IMPLEMENTED FOR REMAININGSu/MU'S,LOCATED AT THE DYNO NOBEL LEHI SITE B, SARATOGA SPRINGS, UTAH FAGILITY(20ra)
SECTION 4 - SOLID WASTE MANAGEMENT UNITs 3 a.No 4:
Tlncer COC('s): PERcHLoRATES (eorn Uruns)
SWMU's 3.a.No 4 (Nonrn AND Sourn BURN Ur.rrTs, REspEcrrvely) HAVE HAD
CONSTITUENT.LADEN SOILS REMoVED FRoM EACH oF THE BunN UruIT,s FLooRs
AND SIDEWALLS OVER MANY YEARS. TTTese AcTIoNs wERE IMPLEMENTED IN
AN EFFORT TO REMOVE THE SoLE REMAINING CoNSTITUENT oF CoTqcenT.T(Pencnlonlres) AND AcHTEVE "No Funrnen AcrroN (NFA) oesraxATtoNs.
THE VERIFICA.TION SOIuIwEATHERED BEDRocK SAMPLES HAVE NoT YIELDED
ANALYTICAL RESULTS THAT A]TAIN RESIDENTIAL ScneeNINc LeveIs FoR
PEncnToRATES.
TXE CUTTULATIVE SOIL REMoVAL EVENTS HAVE REMoVED oVER 25'30 FEET oF
SOIL MATERIALS FROM EACH OF THE UNITs BELow THE oRIGINAL GRouNo
LEVEL CONTOURS. THE rI-OORS OF EAcH oF THE UNIrs Now coNsIsT oF
ExposED, wEATHEneo BeoRocK (sna.tE, erc.)
CorusgTqsus wAS AcHIEVED BY ALL ST,A.KEHoLDERS (DEQ lNo DvTqo NoBED
THAT ADDITIONAL EXCAVATION \IVAS FUTILE DUE TO THE DIFFICULTY OF
BEDROCK REMOVALS.
THE cHosgrq RecuLAToRy AppRoACH FoR ADDRESSTNG THE FATE oF THESE
TWO UTqITS DIScUSSED AT THE Megrlrqc oF DEcEMBER T 3, 2OI7 (Irup
OUTLINED IN THE DEq LETTER oT. NoveMBER 14 ,2O 17) INvoLVED THE
BACKFILLING OF THE EXCAVATIONS WITH CLEAN SOILS TO MEET THE
SURROUNDING GROUND SURFACES.
Tnls APPRoAcH woulD ELIMTNATE ANy r,ossrBrI-rry oF A pATHwAy ro Hur"rlrq
EXPOSURE TO THE UNDERLYING PERCHLORATES.
TUE PnoPosED PATH.FoR\,VARD AcTIoN To BE TAKEN ron SWMU's 3 a.Np 4:
. BtcxFILL EAcn UNII wtrH Cle^e.N sotI-s ro MEET ADJAcENT suRFAcE
soIL coNTouRs,
TnE NovEMBER I4,20 17 DEQ LETTER INDIcATED THAT Connecrlvg AcrIoN
FOR THESE UNITS TO BE COMPLETE, WITHOUT SITE COruTNOIS FOR THE SOIL
PORTION.
Txe LETTER coNTINUED IN ADDREssTNG THE GRoUNDwATER poRTtoN oF
THESE SWMU'S IN REqUIRING THE SUBMISSION OF A GROUNOWATER
MONITONINO PTIN. DETAILS oF rHE GnoUNDwATen MoNIToRING PI-a.ru wERE
FURTHER CLARIFTED By DEQ Sr^nrr AT THE DECEMBER I3, 2Ol7 MEETTNG.
WORK PLAN FOR FINAL CORRECTIVE ACTIONS TO BE IMPLEMENTED FOR REMAININGSWMU'g,LOCA,TED AT THE DYNO NOBEL LEHI SITE B, SAR,IITOGA SPRINGS, UTAH FACILITY(2()ra)
Toptcs DIscussED INcLUDED pRoposED NUMBER oF GRoUNDwATER
MoNIToRING wELLS, LocATIoNS, DEprHS, AND ^ANALysIs oF GRoUNDwATER
SAMpLES FoR spEcrFrc coNsrtruENTs-oF coNcERN (pencxloRATES oNLy rN
ADDRESSINa SWMU,S 3 nrqp 4).
DYNO NOBEL HAS INCLUDED THE ..GnOUNDwATER MoNIToRING PLAN,' As AN
ATTACHMENT To THIS PI-^I,rq Is ExgIeIr B.
SECTION 5 - SOLID WASTE MANAGEMENT UNIT 7 (OIo TesT PT):
Tancer COC('s): RDx
SWMU t*7 (Ot-o Tesr PIr) was AN ExcAVATToN THAT pRovrDED AN AREA
wHERE EARLy slre OpeRATIoNS coNDUcrED TESTS oF ExpI-osrvE pRoDucrs
FoR A BRIEF PERIoD oF TIME. Tng pnesENT "TEsr S|TE", LoCATED Sourng,a.sr
oF THE SWMU #7 t-octrloN, REpLAcED rng Olo Tesr Pm eNp REMATNS
OPERATIONAL AT THIS TIME.
Orqce rne TesrrNG LocATIoN wAS RELocATED To rrs eRESENT LocATroN, StrE
OPERATIONS UTILIZED THE TEST PIT FOR THE DEPOSITION OF BUILDING
DEMOLITION MATERIALS, SUCH AS CINDER BLOCK, ROOFING MATERIALS AND
oTHER SOLID WASTE MATERTALS, INCLUDTNG WOODEN PALLETS, EMpTy PLASTTC
PAILS, AND OTHER PACKAGING PRODUCTS.
Tng nerraEDIATIoN oF THIs UNrt coNsrsrED oF NUMERoUs sorI- REMovAL
EVENTS THAT EVENTUALLY CEASED IN THE VICINITY oT 30 FEET BELow THE
ADJACENT SOIL SURFACE CONToUR. S^I.napLES wERE TAKEN AFTER EAcH
EXCAVATION EVENT AND ANALYZED FOR VARIOUS CONSTITUENTS. TXg PIruET
VERIFICATION SAMPLE TAKEN FRoM THE ..FLooR', oF THE UNIT, REVEALED THAT
THE CONCENTFIATION OF RDX Y1IAS BELOW THE LABoRAToRY'S DETEGTIoN
LIMIT ron RDX IN A sort- MATRTX (lr rrte rrME, < O.l I tqc.llral. No FURTHER
REMEDIATIoN AcTIVITIES HAvE occURRED wITHIN THIS SWMU.
Txe DEQ Lerren oF Nover'reeR 14, 2Ol7 ourLrNED A pATH.FoRwARD
APPROACH THAT WAS BIFURCATED INTO TYI.O SCENARIOS. DUE TO THE
PREVIOUS SOIL SAMPLE ANALYSES, PERFORMED IMMEDIATELY AFTER
CoMPLETION OF EXCAVATION ACTTVTTTES, THE LABOFTATORY UTTLTZED l\T THAT
TIME HAD A DETECTIoN LIMIT Ton RDX IN soILS oF O.I Imc.,lxa.
WORK PLAN FOR FINAL CORRECTTVE ACTIONS TO BE IMPLEMENTED FOR REM^AININGSWMU'S,LOCATED AT THE DYNO NOBEL LEHI SITE B, SARATOGA SPRINGS, UTAH FACILTTY(20 r a)
6
SITqCE THE METHOD DETECTION LIT'TIT (MDL) FoR THE RDX SAMPLE TAKEN Is
Tvl.O ORDERS OF MAGNITUDE HIGHER THAN THE NEW DEFAULT SOIL TO
cRoUNDwATER ScREENING LEVEL op O.OO55 rrrc,/xa., THE FrRsr pATH.
FORWARD RECOMMENDATION WAS TO LOCATE A LABOFIATORY THAT HAS A MDL
oF AT LEAsr O.OO55 tnc.lxa.
DYNO NOEEL HAS RESEARCHED THE AVAILABILITY oF AN ENvIRoNMENTAL
LABORATORY THAT CAN DETECT THE RDX IN soIL CoNCENTRATIoNS BELow
THE DEFAULT ScneeNINc LeveL oF O.OO55 naa,/rg. Txe LAeoRAToRY(TESTAIUERIcA IT{ DeNvER CoLoFTADo), HAS A MDL FoR RDX IN SoILS oF
O.OO43 r|,,G.,lrcG. SUBSEqUENTLY, DNI WIIL OBTAIN A SOIL GRAB SAMPLE
FROM THE FLOOR OF SWMU 7 ^ENP SUBMIT IT FoR RDX ANALYSIS AT THE
TESTAIVIPRICA LA.gORAToRY.
IN THE EVENT THE RDX CONCENTFIATIoN oF THE GRAB SAMPLE oBTAINED FRoM
THE FLOOR OF THE UNIT FLOOR IS REPORTED BY THE LABoRAToRY BE HIGHER
THAN O.OO55 t'ttc.lt<G, THE sEcorqp Pann-FoRwARD AppRoAcH pREsENTED By
DEQ IN THE NoveMeER I4, 2OI7 wILL BE IMPLEMENTED.
GveN THIS scENARIo, Dyrqo NoBEL MAy ELEcr ro ETTHER cALcULATE A srTE.
SPECIFIC DITUTIOru A.rqO ATTENUATIoN Fe.cron (DAF) oR A SITE.SPECIFIC SoIL
TO GROUNDVI.ATER PROTECTION STANDARD T'ON RDX SCREENING AGAINST THE
PREVIoUS LAB'S MEAN DgTgcTIoN LInaT (MDL), OR UTIIIZE THE HYDRUsMopel ro DEMoNSTRATE THAT THE GRoUNDwATER HAS Nor BEEN RDx.
IMPAcTED BY THE SWMU.
(lr snouLD BE NorED THAT DNI wAs crvEN THE oprroN oF cHoosrNG THts
PATH.FORWARD APPROACH WITHOUT SEARCHING FOR A LABORATORY THAT
COULD DETECT RDX IN SOIIS DOWN TO A CoNCENTFIATIoN oF LESS THAN oR
EQUAL TO O.OO55 v.c,/rco. DNI HAS CHOSEN To oBTAIN ANoTHER soIL GFIAB
SAMPLE FROM THE FLOOR OF TTTE UTqIT AND HAlrE TESTAMERIcA (DeTqven)
PROVIDE THE UTAH.CERTIFIED METTToo (882A oR A32 t B EMPLoYING
LC 1 MS 1 MS INSTRUMENTATIoTI).
WORK PLAN FOR FIN/I,L CORRECTIVE AGTIONS TO BE IMPLEMENTED FOR REMAININGSWMU'S,LOGATED AT THE DYNO NOBEL LEHI SITE B, SARATOGA SPRINGS, UTAH FACILITY(2()ra)
o
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mzg$*e,. ?'?aia- luga dtttattm *ay i*drcx* ttlrrt ttw, a*timsfiy W.*t t is a cwtax&xant.
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r ilone af tfu tcxrr;rt**riat s date* ts l*xav*lenr chxtffi,lllffi w *aaWy zl SWMU I
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EXHIBIT B
GROUNDWATER MONITORING PLAN FOR
DYNO NOBEL, INC. LEHI SITE B,
SARATOGA SPRINGS, UTAH.
/EXHIBIT,B:
..GROUNDWATER MONITORING PLAN FOR
DYNO NOBEL, INC. LEHI SITE B FACILTY
SARATOGA SPRINGS, UTAH.''
INTRODUCTION:
TNIS GNOUTTOWATER MONIToRING PLAN Is PRESENTED As ..EXHIBIT B'' oF THE ..WoRK
PI-^A.N TON FINU\T CONNECTIVE ACTIoNS To BE IMPLEMENTED orq RgnaIINING SWMUS',,
SUBMITTED IN CONJUNCTION WITH TUE CONRECTIVE ACTION WONX PUTN TO DEQ FOR
REVIEVI. AND APPROVAL.
Tats PI-^e.rq Is BEING SUBMITTED BASED upoN THE REcoMMENDATToNs MADE By rHESt^lrp oF THE STATE op Utln, DEpARTMENT op EruvlnoNMENTAr- Que.llrv (DEQ)
DIVISION OF WASTE MIru^a.CEMENT nrqo Ra.oIATIoN CoNTRoL IN LETTERs DATED Aucusl
22 ^Lruo NovenaeER 14, 2Ol7 To DyNo NoBEL lNc. (DNl). AporroNAL DrscussroNs AND
MEETINGS WITH ^E.LT STIxEHoLDERS EMPHASIZED THE NEED FoR THIS PLa,Tq oNI
Sgprenaeen 2l AND DecenaeER I 3, 2017.
THe I-eTTERs AND SUBSEqUENT DIscUsSIoNs BETwEEN DEQ nruo DNI REPREsENTATIVEs
FOCUSED ON THE POTENTIAL FOR GROUNDWATER CONTAMINATION BELOW AND DOWN
GRADIENT OF THE FACILITY FRoM oPERATIoNS AT Txe SITE B FACILITY oVER THE coURSE
OF MANY YEARS OF OPEFIATION.
TNIS CONCERN WAS BASED ON THE SOLID WASTE MANAGEMENT UruIT (SWMU)
CONNECTIVE ACTION EFFORTS UNDERTAKEN AT THE SITE B FAcILITY oVER MANY YEARS
UNDER N DEQ,APPROVED RCRA Faclurv INvesTIcATIoN (RFI) Wonx PUIN.
TNE TOCUS OF THIS GNOUNowATER MoNIronINc Plalq (Wonx pIaru) wILL ADDREss THE
POTENTIAL FOR GROUNDVI.ATER IMPACTS DUE TO POTENTIAL SURFACE CONTAMINATION TO
THE GROUNDvvATER FROM SWMU,S I, 3, 4 lNo 7 (oescnIBED IN THE DEQ NoVEMBERl4,2Ol7 LETTER, ATTAcHED AS "ExnrBIT A"). EacH oF THESE SWMU's, AND THEIR
RESPECTIVE, POTENTIAL IMPACT TO THE GROUNDWATER WILL BE PRESENTED IN THE
FoI-I-owtt{c SecrroN oF THrs PI-^a.N.
SectroN l: SWMU
InapouruDMENTS.
PnooucrroN Facrtrtres Sunpe.ce
THENE ARE SIX (6) PONOS THAT coMPRIsE THE GRoUPING TITLE oF ..S\MMU I,,. Txnee (3)
oF THE PoNDs ARE KNow As rHE "UppER PoNos" (NoRTH, MIDDLE AND Sourn). THESE
PONDS WERE UTILIZED TO RECEIVE THE WASTEVI/ATER EFFLUENT FROM TNE PNODUCTIONFlcrtttlgs BEFoRE DTScHARGTNG ANy ovERFLow, (CorurnoLLED wrTH sLUIcE soxEs), to
THE THREE G) "LowER
EVAPORATION.
" GLSo, Nonrn. MTDDLE
o
AN o Sourn) pon FURTHER
ATTNOUOH THESE PONDS vvERE EXcAVATED MANY TIMES oVER THE YEARS To REMoVE
CONCENT'RATIONS OF THE ASSIGNED Cor.IsrIrUENTS,oF-CoTqcgnrq (COCs), IN THE
UNDERLYING SOILS, VERIFICATION SAMPLES ANALYZED FOR THE COC'S COTT'TPARED TOB,lcxcnouND soIL SAMpLING RESULTs WERE rNcoNcLUSrvE IN DEMoNSTRATING
ATTAINMENT OF RESIDENTIAL SOII REEIONII- SCREENIT.IC LEVEIS (RETER TO "EXHIBIT B,Reolorqll RSLs) DUE To A vALrD Tesr or MelNs HypotHEsrs Nor BEING coNDUcrED,
AS oUTLINED IN THe DEQ NovgnaeER I4, 2OI7 LETTER.
Murua.tw-nGREED To Nor BE coNSTDERED A porENTrAL THREAT To rHE uNDERLyTNG
GROUNDWATER, THE DEQ RECONATTENDED PaNn.FoRwARD RESoLUTIoN FoR THEConRecrlve AcrIoN To rHIs SMWU wrLL BE THE collEcrroN oF ADDTTToNALBncxcRouND Soll ^q.Np SWMU solls sAMnLES, As spECrFrED IN A "SrATIsrrcALLy.Supponreo B^e,cxcRouND SotL Slnaptrrqc PLAN" (Exxrelr A, oF THE ASSocTATED
"WORK Ple.rq roR Ftrual ConnEcrtvE AcrroNS To BE IMpLEMENTED oN RenaarNINGswMUs").
DNI BELIEVES THAT THE CONDUcTANcE oF ADDITIoNaI. SWMU aNo B,e.cxcRoUND soIL
SAMPLING, (PER THE PROTOCOL OUTLINED IN THAT ..EXHIBIT A''), THE RESULTS WILL
DEMONSTRATE THAT THE POTENTIAL FOR GROUNDWATER IMPACTS FROM THIS SWMU IS
EXTREMELY UNLIKELY.
TnenrpoRE, IN RESPONSE TO P^tR.lcn^q.pa 2 oF THE DEq NOvEnAeER I 4, 20 17 Lrrren
CONCERNING ..THE POTENTIAL FOR GRoUNDwATER IMPAcTS FRoM SURFAcE
CoNTAMINATIoN nr SWMUs I nruo 7 sHouLD ALSo tsE TNVEsTTGATED", No MoNrroRrNG
WELL IS PROPOSED TO BE INSTALLED T.on SWMU I AT THIS TIME UNDER THIS PueTq.
Secrtor.r SWMU,S 3 AND 4 NonTH AND Sourn BunN UNITs.
SWMU 3 (Nonrn BuRN Utqr) nNo SWMU 4 (Sourn BuRN Ur.rm) ARE Two AREAS THAT
RECEIVED VARIOUS EPISODES oF REMEDIATIoN (Exce,veTIoNS oF SoILS WITH oFFSITEDIsposa,l) oven NUMERoUs yEARs. Ea,cx ExcAVATToN EvENT wAS sAMpLED AFTER sorL
REMOVALS FoR THE DESTGNATED CorqsrruENTS-oF-CoNcenN, AND FoUND To MEET THE
TARGET RESIOENTIAL RSLS TON SOIIS wITH oNE ExcEPTIoN: PERcHLoFTATES.
AFTER MA.NY ATTEMPTS BY DNI TO REMoVE UNDERLYING SoILS To MEET THIs REMAINING
CONSTITUENT-OF'CONCERN, ALL SOILS HAD BEEN REMOVED AND THE UNDERLYING
FRACTURED BEDROCK WAS ENCOUNTERED.
VEntpIcltloru SAMpLES oBTAINED FRoM DRTLLING rNTo rHE FRAcTuRED BEDRocK
REVEALED THAT THE PERCHLORATE SAMPLE RESULTS HAD NOT ATTAINED THE SOUGHT
AFTER RESIOETTIAL SOII RSL.
slNcE REMOVAL OF THE BEDROCK LAYERS vl.AS CONSTDERED TO BE UNREASONABLE, DEQ
INDICATED IN THE NOVEMEER I 4, 20 I7 LETTER THAT CONNPCTVT ACTION FOR THESE
TWO UNITS TO BE COMPLETE WITH No ADDITIoNAL sITE coNTRoLS FoR THE soIL PoRTIoN
oF THEsE SWMUS.
o
Poruos
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
PEncnToRATES ARE wATER.SOLUBLE AND THE DIvISIoN Is coNCERNED ABoUT THE
POSSIBLE PERCHLORATES IMPACT TO THE GROUNDWATER. DNI IS ADDRESSING THIS
coNcERN wrTH THE INSTALLATToN oF Two (2 GnoUNDwATER MoNrroRrNG wELLS DowN
GFIADIENT oF THEsE UTqITs, AS oUTLINED IN THIs GnouNowATER MoNIToRING PLAN.
TxE DEQ RECOnaT"TENDED Pa.rn,FORwARD FOR THEsE UruIrs
(specrpreD rN THE NovEMBER 14, 2Ol7 Lerren ro DNI ), rNcLuoED THE BAcKFTLLTNG oF
THE EXCAVATIONS WITH CLEAN FILL A.ND THE INSTALLATION OF THESE TWO
GROUNDWATER MONITORING vl/ELLS TO ASSESS ANY GROUNDWATER PERCHLORATES
IMPACT THROUGH GROUNDWATER SAMPLING DATA.
SecrroN 3: SWMU 7 Ot-o TEsr Prr
SWMU 7 l+ns BEEN EXcAVATED EXTENSIVELY IN THE PAsT IN oRDER To REMove RDX
coNTAMINATED suB'sotls. Txe lasr ExcAVATToN oF sotI-s EXTENDED AppRoxtMATELy
25'BO FEET tsELow THE suRRouNDrNG GRoUND suRFAcE WHEREIN A coNFrRMATroN
SAMPLE wAS OBTAINED AND ANALYZED FoR RDX. AT THE TIME oF THE ANALYSIS, THE
ENVIRONMENTAL LABORATORY EMPLOYED AN ANALYTICAL METHOD FOR THE DETECTION
or RDX rN sorI-s wrrH A DETEcrroN Lrnarr or O.l I ttoll<o.
DEQ HAS STATED IN THE NoVEMBER I4, 2OI7 LETTER To DNI THAT THE DEFAULT SoIL To
GRoUNDwATER ScREENTNG LEVEL FoR RDX rs O.OO55 tlo.,lt<G, Two oRDERS oF
MAGNITUDE LOWER THAN THE DETEGTIoN LIMIT FoR THE MeTnoo USED PREVIoUSLY.
DEq HAS ALso STATED THAT "DUE To rHE HIGH MoBrLrry AND Toxrcrry or RDX, tne
DIvrstoN (na.s) REQUESTED THAT DyNo Noegl DEMoNSTRATE THAT GRoUNDwATER HAS
NoT BEEN IMPACTED BY RDX,,.
A "REcoMMENDED PATH FoRwARD FoR SWMU 7", pRESENTED By DEq tN THE
REFERENCED LETTER ABOVE, IS TO RESEARCH A LABOFTATORY THAT IS ABLE TO EMPLOY AN
ANALYTICAL METTTOo TO DETECT RDX IN SoIL BELow A coNcENTRATIoN oF
O.OO55nAG.1KG. IF FOUND, ANoTHER coNFIRMATIoN soIL SAMPLE coULD BE coLLEcTED
FROM THE FLOOR OF THE ExcAVATIoN AND ANALYZED Ton RDX IN A soIL MATRIX.
SrrOuIo THE SAMPLE RESULT BE tsELow A METHoD DETECTIoN LInaIr or O.OO55M.G,1KG.. ,
NO FURTHER ACTION WOULD BE REQUIRED SINCE THE DEMONSTRATION OF NO IMPACT TO
THE GROUND\IVATER WOULD BE CONSIDERED COMPLETE.
DNI naS LOCATED A LABoRATonv CTESTAMERIcA, DENVgn, CO.) THAT IS cAPABLE oF
REPoRTTNG RDX rN sorls wrrH .n Mgtnoo DerecrroN Llnart (MDU or O.OO43 M,e.lxc.
TTTIS UTAH.CERTIFIED METnoo A32IA on B wILL BE UTILIZED FoR THE RDX ANALYSIS oF
THE soIL SAMPLE To BE oBTAINED FRoM THE FLooR oF SWMU 7.
IF THE RDX SAMPLE RESULT IS BELow THIS METHoD DETEcTIoN LIMIT, No FURTHER
REMEDIAL ACTION WOULD BE NECESSARY a.No DNI wILL SUBMIT A ..No Funlnen AcTIoN,'
REQUEST. WHEN GRANTED, DNI WILL BACKFILL TNE OIO TEST PIT WITN CLEAN FILL TO
THE SURROUNDING GROUND SURFACE.
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
ALTERNATELv, ANoTHER Pl,rx FoRwARD SUGGESTIoN ev DEQ INcLUDED cALcULATING
A srrE.spEcrFrc DrlutroN AND Atreruu;rtrorq F^e.cron (DAF) on a sITE-sPEcIFIc soll- To
GROUNDWATER PROTECTION STANDARD FOR SCREENING AGAINST THE MDL (RTTENNITqC
To THE EXISTING RDX ANALYSIS vIs.A.vIs THE PREVIOUSLY EMPLOYED ANALYTICAL
Mernoo) oR usE tne HypRUS MoDEL To DEMoNSTRATE THAT THE RDX HAS BEEN
ATTENUATED AND THAT GRouNDwATER HAs Nor BEEN IMpAcrEo (corqrl[atNa.rloN) ev
THE SWMU.
DNI IS PROPOSING TO OPT FOR THE FIRST PATH,FORWARD OPTION; THE COLLECTION OF A
soIL SAMPLE FRoM wITHIN THE FLooR oF SWMU 7 aNO HAVE TESTAMERICA EMPLOY THE
RDX IN SoILS MSTNOP WITH THE MDL OT O.OO43 rt'aA,/l<a..
Spcrrorq G nourqDwATER WELL LOCATIONS.
ALTHoUGH NoT SPEcIFIED IN THE NoVEMBER 14,2OI7 DEQ LETTER TO DNI, TNE
pRoposED LocATroNS oF THE Two e) GnourupwATER MoNlroruNc wELLS wERE
DrscussED wrrH DEQ Sr^npp rN THE DEcEMBER 13, 2Ol7 MEETING. ("ExttleIT C,..GRoUNDWATER REsoURcEs AND PRooucTIoN WELL LOGS,' PROVIDES REFERENCE
TNFoRMATToN REGARDTNG rng SuesuRFAcE Ggotoclcl.t PRoFILE oF THE REGIot{).
Tne GENERAL coNsENsus AMoNG sTAKEHoLDERS wAs rHAT AT LEAST oNE (t)
GROUNDWATER MONITORING WELL BE INSTALLED IMMEDIATELY DOWN GRADIENT (EA.ST)
OF THE TWO BUNN UNITS. ITq ORDER TO POTENTIALLY CAPTURE REPRESENTATIVE
GROUNDWATER SAMPLES FROM THIS WELL POINT THAT WOULD REPRESENT
GRouNDwATen (poreNTrALLy FLowtNG BENEATH BorH SWMUs), THE wELL wlLL BE
LocATED A sutrABLE DrsrANcE To rHE EAsr. Dvruo NoBEL lNc. n;rs PRoPoSED A
LocATroN FoR THrs wELL rN THE ATTAcHED Frcune 3; "GRoUNDwATER WELL
PLAcEMENT MAp". TnIs MoNIToRING potNT wILL BE KNowN AS "BUM\M-1". IT Is rHE
GOA.L OF THIS PIA.N TO DRILL INTO THE WEATHERED' (FN,A,CTUNEO) BLUE LIMESTONE
BEDROCK TO ENCOUNTER A SUSTAINABLE SOURCE OF GROUNDWATER.
TNE OTHER MONITORING WELL LOCATION WAS MUTUALLY AGREED TO BE LOCATED
FURTHER DowN GRADIENT FRoM BUMW.I. TxIS PROPOSEO E^ISTERN.MOST LOCATION
FoR ..BUM\A/'z', Is THEoRIZ,ED To BE ABLE To CAPTURE THE GROUNDWATER FLOWING
UNDER THE FoRnagR BunN Ururrs AND coNTTNUTNG EASTwARD TowARps Utnn LAKE
wITHIN THE ALLUVIUM DEPoSITS.AT A. DEPTH oF APPRoXIMATELY 24O FEET BEIOW
Gna.oe.
Tnp pRoposED LocATroN coNsrDERS THE - SODEGREE DIr" oF THE (rna.cruneo) Gnean
BLUE LIMESToNE BEDRoCK ENCoUNTERED BENEATH THE DNI PROPERTY. TXE DNIILING
LoGS FoR THE Two (2) pnooucTloN WATER WELLS, LOCATED ON THE DNI PNOPERTY,
pRovrDE coNcEpruAL DETATLs oF THE sUBSURFAcE pRoFILE. (Reren ro ExHIeIr C
(LreNrroNED ABove) arqo FrcuRe l, "CoNcEpTuAL Cnoss'SEcrIoN A-A', LocATED IN THE
Frounes Sec,troN oF THrs PUN).
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 201B
CALCTTE Exptona,TroN, LLC owNs rHE pRopERTy ALoNG THE SHARED AccESs
RoADwAY INTo THE DNI LrTTI SITE B FAcILITY AND THE Ca,ICTg EXPTONA,TIOru
opERATrorqs. Tng wELL wAS AGREED To BE LocATED wrTHrN THE RoAD RIGHT,oF-wAy.
IN AN oN.sITE MEETING wITH CALcITE ExpToR.lTIoN LLC REPRESENTATIVES OTv Ma.Y 8,
20 18, THE LocATroN FoR THrs Dowru GRaorgNT wELL wAS DETERMTNED. THe r-ocATroN
WAS MUTUALLY CHOSEN TO BE AWAY FROM VEHICLE TRAFFIC FROM THE ACCESS ROAD,
sLrcHTLy SoUTH oF THE Elecrnrca.t SuesrATroN (see Frcung 2, "Dowru Gnaorerqt
Weu LocATroN". THe et-evATroN wAS REcoRDED As 4570, a,rqp CooRDINATES oF 40
DEGREES, l5 MrruuTEs nruo 50 SecoNps Nonrx; I I I DEGREES, 52 MINUTES AND 3l
SgcoNps WEST.
AS STATED ABOVE, IT IS ANTICIPATED THAT GROUNDWATER WILL BE ENCOUNTERED
wrrHrN THE UNcoNSoLIDATED UruorpreRENTrATEo Al.I*uvruru, wHrcH covERS THE DNI
SITE. TnE PnoDUCTIoN wELL DRILLING LoGS (UppEn eNo Lowrn WEIIS) SuppoRT THIS
EXPECTATION.
THg AI-LUVIUM LAYER IS ENcoUNTERED IN MoST AREAS SURRoUNDING UTe T LAKE ON
BENCHES AS A RESULT OF THE DEPOSITIONAL ENVIRONMENT OF THE VARIOUS LEVELS OF
SHoRELINE SURROUNDING TTTE PnE,HISTORIC LAKE BOTTqEvILLE.
IT IS THE GoAL oF THIs PI-nN AND THE PLAcEMENT oF THE MoNITORING wELLS To
CAPTURE REPRESENTATI\IE GROUNDWATER FLOW THAT IS REASONABLY THEORIZED TO
HAVE FLowED BENEATH BoTH oF THE SWMU BunN UNITS. PER THE NovgMeER 14,
2Ol7 DEQ LErrER, THE PRESENCE oF THESE BURN UNrs AND THE REMATNTNG
CoNCENTRATIONS OF PERCHLORATES rN THE FRACTURED BEDROCK, PRESENTED A
POTENTIAL FOR IMPACTING THE AQUIFER WITH PERCHLORATES.
SEcrIoN 48: GnourqDwATER WELL INSTALLATIoN
DETAILS
DNI wIIL EMPLoY THE SERVICES oF A soNlc DRILLING CoMPANY To INSTALL THE Two
GnOuruowATER MOTqITORING wELLS. COruCISE DETAILS oF THE SOruIC WELL DnITTINC
TEcHNIQUE MAY BE FoUND IN ExnIeN D, ..SoNIc WELL DRILLING',. TTTIS DRILLING
PROCEDURE HAS THE ADVANTAGE OF NOT UTILIZING AIR, MUD OR VIIATER, THUS REDUCING
DRILLING wAsTE PRoDUcTs. IT ALso ALLowS FoR coRE EXTRAcTIoNS FoR THE
PRODUCTION OF VERY THOROUGH AND ACCUFIATE DRILL LOGS OF THE SUBSURFACE SOIL
PROFILE.
UpoN AppRovAL oF THrs GRoUNowATER Mor.rrtoRrNc PtLN FRoM DEq, tne DnrlLrNG
Corqrne.croR wrLL BE coNTAcrED To ScHEDULE THE wELL DRTLLTNG EvENT. DEQ wrLL
BE coNTAcTED REGARDING THE MoeITIZaNIoN DATE oF THE DRILL RIc TEana AND DyTqo
NoBEL Opgna,TIoNs AND CALcITE ExpI-oR,e,TIoN LLC INFoRMED oF THE EvPNr
SCHEDULE.
A BoREscoPE WILL BE oRDERED FoR DELIVERY, DEPENDENT UPoN THE TIMING FoR
COMPLETION OF BOTH WELLS TO BE UTILIZED FOR THE ESTABLISHMENT OF GROUNDVIIATER
FLow RATE AND DrREcrroN (Exnrerr E, "CoLLotDAL BoRescopE SysrEM").
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
THe ErqvInorqMENTAL LABoRAToRy (ALS LABS, Sltr LAKE Crry, Ura.n) wrLL BE
CONTACTED FOR THE PRODUCTION OF WATER SAMPLE CONTAINERS TO BE UTILIZED FOR
THE COLLECTION OF SAMPLES AND SUBMISSIoN To Txe Lna FoR ANALYZING THE TARGET
ANALYTE (Pencxlona,res).
IN THE FIELD, THE LATITUDE AND LONGITUDE AND SURFACE GRoUND ELEVATIoN oF EAcH
WELL BE OBTAINED AND RECORDED AND PHOTOGRAPHS ACQUIRED DURING THE DRILLING
PROCESS.
WELL coNSTRUcrIoN MATERIALS wrLL BE coMposED oF FouR (4") rrqcn OD, ScnEDULE40 PVC pIptNG wtrH I O-2O Feer oF wELL scREENTNG, DEpENDTNG oN AeurFER
CHARACTERISTICS ENCOUNTERED AT EAcH wELL.. BoruNc LoGS wILL BE coMPLETED BY
DRIttlNc Corurn^a.croR pERSoNNEL. A Frlren pAcK wrLL BE pLAcED ABovE EAcH wELL
SCREEN. TNE GUIN SIZE OF THE FILTER PACK WILL BE cHosEN IN THE FIELD BY THE
DRILLING CONTRACTOR.
AT THE GRoUND SURFAcE,
"srtcK-uP". Tnp DEPTH
DESIGNATED AS THE TOP OF
MEASUREMENTS.
THE WELL WILL BE GOMPLETED WITH A SURFACE CASINGTO GROUNDWATER WILL BE MEASURED FROM A POINT
cASING ffOC) AND LABELED FoR coNSISTENT wATER LEVEL
Tne eRouND ARE^A. ADJAcENT To EAcH wELL wrLL GFIADED AwAy FRoM THE cAStNG To
PREVENT SURFACE YITATER INFILTRATIoN IN THE VICINITY oF THE WELL. No InapgRMEABLE
APRON WILL BE CONSTRUCTED DUE TO A VERY LOW PRECIPITATION RATE OF THE REGION.
A srEEL cAstNG, wITH A LocKrNG cAp, wrLL BE INSTALLED To pRorEcr rHE INTEGRITy oF
EACH wELL'S ..STICKUP,'.
IN THE HIGH TRAFFIc AREA oF THE DowN GR^IoISNT wELL (BUMW.2), Ioca.TED wITHIN
THE ACCESS ROAD RIGHT.OF.WAY, BoULDERS, RocKs oR JEnsEY-TYPE BARRIERS WILL
PLACED ADJACENT TO THE WELL FOR PROTECTION FROM VEHICLES. DUE TO NO TFIAFFIC
IN THE VICINITY OF THE OI.O BUNN UNITS, NO BARRIERS ARE PLANNED To BE INSTALLED.
SEcrIoN 4C: GnourqDwATER WELL DEVELoPMENT.
Tne DRILLING coNTRAcroR wrLL BE REspoNsrBLE FoR wELL DEVELopMENT rN
A.CCORDANCE WITH COMMONLY EMPLOYED WELL DEVELOPMENT PROCEDURES AND
PROTOCOL. THENT. TTER, BORESCOPE INSTRUMENTATION WILL BE EMPLOYED IN EACH
NEWLY.INSTALLED WELL FOR THE DETERMINATION OF RATE AND DIRECTION OF
ENCOUNTERED GROUNDWATER FLOw. BoREScoPE EQUIPMENT wILL BE DEPLoYED AND
INSTALLED IN EACH OF THE NEWLY.INSTALLED AND DEVELOPED MONITORING Y1IELLS ONLY
ONCE. IT IS NOT ANTICIPATED THAT THIS EXERCISE BE REPEATED ANYTIME DURING THE
LIFE OF THESE WELLS.
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
SEcrIorrI 4D: GnoUNDwATER \MELT SanapLING AND
Arqet.sts.
THg soLE coNsrrruENT-oFCoNcERN To BE ANALyZED FRoM EAcH wELL rs
PERcHLoRATE a.No PSRcHLoRATS SA.r-rs (CAS 14797-73'0).
AITER REcoRDTNG DEprH To cRouNDwATER, wATER pH, spEcrFrc coNDucrtvtry AND
TEMpERATURE, A poRTAer-e ELecrRIc BLADDER puMp wtLL BE LowERED rNTo rHE
MONITORING WELL TO PURGE THE REQUISITE WELL CASING VOLUMES OF WATER FROM
EACH. PURGE WATERS WILL BE MANAGED ON SITE AS NoT.I.HA.ZARDoUs wAsTE AND
ADDED To rHE Pnoouc"tloN W^e.srEwATER sysrEM FoR ULTTMATE oFF-srrE DrsposAI-..
AppRopRIATE wATER SAMeLE voI-unaes ( I 25 MrJ wrLL THEN BE oBTATNED, pER THE
EruvI no ru M ENTAL La.eo RATonv M gTHo D REQU IREM ENTs.
TTTS SNNAPLES WILL BE PRESERVED As INSTRUcTED BY THE LIeoRAToRY AND CnIITq,op.
Cuslooy FoRMs coMPLETED IN THE FIELD.
TTTS SA.NAPLES WILL BE DELIVERED To THE ALS L^a.e IN S^a.I-T LAKE CITy, UTAH FoR LoG'IN
ACCEPTANCE AND ANALYSIS FOR PERCHLORATES, WITH A NORMAL TURN'AROUND TIME
ffAT) REqUESTED FOR REPORT GENERATIoN. ALS ENvInoNMENTAL Lans (A STATE oFUTAN CERTIFIED LA.EORATOnY) EMPLoYS EPA SW,A46 METHoD 6A50 FoR
PERCHLoRATES IN WATER WITH AN MDL op 0.06 uo^/TITeR AND AN RL (RepoRTING
Lrun) or O.2 uc.1lmen.
SECTION 4E: REUEW OF ANALYTICAL RESULTS AND
REPoRTING.
SAMPLE REpoRTs, wHEN REcETvED By Dvrqo NoBEL, wrLL BE REVIEwED AND
FoRwARDED To A DATA V^e.rrolrroN coNTRAcroR (Dnrqe Snonr AND Assocntes, CO).
OTqCE THE ANALYTICAL RESULTS HAVE BEEN VAuDATED AND DEEMED AccEPTABLE, THE
SxrapTE REponTs wILL BE FoRwARDED ro DEQ.
THe RepoRTs, BAsED oN NoRMel- TAT, ARE ExpEcrED To BE REcETvED AppRoxrMATELy
Two (2) weexs AFTER LAB REcErpr oF THE sAMpLES.
DVNO NOBEL INC. WILL CONTACT DEQ REPRESENTATIVES TO SCHEDULE A MEETING TO
DISCUSS THE RESULTS AND MUTUALLY DETERMINE A PATH'FORVI|ARD APPROACH FOR
FURTHER SAMPLING AND ANALYSIS. IT IS ANTICIPATED THAT NO PERCHLORATES WILL BE
REPORTED ABO\IE THE METHOD DETECTION LIMITS.
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
8
SECTIoN 4F: FnEQUENCY or WEU- Se,rraPLING.
As DISCUSSED IN THE PREVIoUS SEcTIoru, DYNo NoBEL ITqc. ANTIGIPATES THE
MoNIToRING wELL SAMPLES TO NOT EXCEED THE METxop DTTECTIoN LIMITS.
IN CoNSIDEFIATIoN oF THE GRoUNDWATER RATE AND FLow DIRECTIoN EMANATING FRoM
BENEATH rnE BunN UNIT AnEI, (oIra GENEFIATED FRoM Trrg CoTLoIDAL BoREscoPE
Svsrena EvErqrs), cALcuLATroNS oF GRoUNDwATER TRAVEL TIMES To BorH oF THE
MONITORING WELLS WILL BE UTILIZED TO DETERMINE THE NEED FOR ANY ADDITIONAL
GROUNDWATER SAMPLING FROM THESE TWO MONITORING WELLS.
Snoul-p rHE REeoRTED wATER SAMnLE RESULTS BE ABovE THE Mernoo MDL, Dyrqo
NOBEL INC. RESPECTFULLY REQUESTS GUIDANCE FROM DEQ ON THE EFFICACY OF
FURTHER wELL SAMPLING sINcE EPA HAs NoT ESTABLISHED A RIsK'BAseo SSL FoR THE
PRoTEcTIoN oF GRoUNDwATen (ReTeR To ExxIeIt B). ALSo, PLEASE NoTE THAT THERE
ARE NATUFIALLY.OCCURRING PERCHLORATES THAT EXIST IN THE ENVIRONMENT AT VERY
LOW CONCENTRATIONS.
SEcrIoN 4G: WELL ASA.NooNMENT.
AT ^a. TIME DETERMINED To BE AccEPTABLE ey DEQ, AND THE FAcT THAT THE MoNIToRING
WELLS wrLL HAVE SER\IED THEIR puRposE, DNI wrLL REqUEST No FunrneR AcrroN
(NFA) FoR THESE wELLs AND REQUEST THAT THEY BE ABANDoNED.
Cfne PuRposE oF THESE MorurtoRrNc wELLS rs ro DETERMTNE ANy pERcHLoRATE
IMPACT TO THE GRoUNDWATER BY THE PREVIoUS BURN UNITS, FoRMERLY LoCATED IN
THE SourHwEsr ConNen oF THE Sec'TroN or Dvruo Noegl lrqc. pRopenTy).
ABANDONMENT WILL INCLUDE THE GRoUTING oF THE \,VELLS WITH I BeTqToNITE CI-ny
SLURRY, REMOVE THE PROTECTIVE, STEEL WELL CASING AT THE SURFACE, AND CUT THE
PVC wELL cASING AT THE GRoUND suRFAcE To coMpLETE THE ABANDoNMENT pRocESS.
ASA,NooNMENT pRocEDURES wtLL BE DocUMENTS AND pHoroGRApHED AND REcoRDs
pRovrDED TO DEQ nNO CLtCrTE EXptORa.rlON, LLC.
Groundwater Monitoring Plan; Dyno Nobel Lehi Site B Saratoga Springs, Utah 2018
o,
FIGURE 1
CONCEPTUAL CROSS-SECTION A.A'
ELEVATION IN FEET (NGVD2g)
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FIGURE2
DOWN GRADIENT WEtt LOCATION
(CALCITE EXPLORATION PARCET)
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FIGURE 3
GROUNDWATER WELL PLACEMENT
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EXHIBIT A
DEQ NOVEMBER L4,2OL7 LETTER
State CItUterh
ci3Y3.r&ta8ilT
tttweaot
sgglffiar.6xLr*ta*uttwtwr
WiwELtaf
tsnvllromm,atal&nltty
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Drva&{ or wAfir xAx^tarfigxt*rrB*,ti&xym4wl?aLW.T,tuwt
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No!rus*cr ,4,2iJ11
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SanisDiler*adf-?,rirarrxgrtt
Dyao lto&el lac.
n95 Aarr. Curnvtoo{ ?arkw ay, *rre ffi
Sahtl-akaCity,W Wzl
RE: SWMtICorMjvaAr*iw
Dyt fi I,labrl;l lffi ., lrhi Si& Bwwwn
Derrffir"Iwdiruw:
Aa @e,fu 71, 20 17, ths Divi$iou of W agn i*Iirurzgesratt ud &fiiilist .a&a, ## w*
ryexrxr&ityer, of Dyno Hcb*l to disctrss pr*xriial grclrirdrwa*r wrrfaaliurrtlrra xfub*i, Sisfrls*
fx,ihty. *is W# ot xbwnw, fu rsrliag a& wv'tews tlrc stdos d Mve *iw tM rfu reai*4*g
SWMIJS x&w.txi\iry
i,E $Ae ia ow l*e.r dX& Aagnx ?2, Wr7 , tlrc Divirfua is M faat gwrdwatff *"law M
dr;wrr-gtdic,Dt af fu fx,ilxy uadbt"hzve fu ingd *ww rydrww mMN at SLtn 9 ow *lw
y*"ar* af opglrcig* 1* ruryto {his &ww,D}rm :.ioed tq*wrla;iv** iM& &xingfu
walls u &c fer,rl*y. 3iaro o* wl w@iry rcsulrs, it ryn h* SW?tftl s 3 & 4 u* fu WMry
uai* of wnr. 'lloutr,ua4 fu Wral*tat far grurlrdrww im@s frwt w*w wtawiu&w &
SWMUI I M? skdd alm-rr.iavr*tigdd. ?baso subrlr*zWWo*ffiwtsfuMallfuisf
gtwrrdw *r ftwiwrittg wall* *t ywr w*fut ccxrerri*"w.
I}ranrregazrr*t f of Mva u*isn x,fftlffiUs 1,\3,4 r*7 ie$Mwid*low Mi*falblttd
by a rM @ fwwwd far e& SWMU.
s,
kevian* su*fiitrg rrsrllx* al t?*, SWbltr.l I su& ury @ ht*a *k,w* *8 errr;lr:wgo qanrtn
(DRO) ara Wfi" & crllrrxrfadrars &s* exd &w Diwr*,,w af Fawwal Xry* a*
Xemdn t s, (Df&X.} Tffi t wwr*erevel
,t C tW 19* Ulrm. S* l"*s &y, Wr@ rtu: 7&, M, l1&. * L& &y. Xll r{lr&trW 4&rt tM. fu, {*ll s*ffi ,. T'b fr " ffi? ffi&*
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aryrapriat* {*r uw bt. NeNh .tite* *#e ** *xp*as* pahw*y* *val*zt& utfur tt & *,Wfi, ?ra*ram ffi*
n* um.*irsant with tL*w a*rm;iat& wl:rh *C*"A *\ta*.
1* *rd*r t* *vzlu*lt tfu human ,warrh tixk w i*& with W0 tbt tffinirrfilrtfi ix wtxduzru \rrith n3**
lAl , raltr**as*ativ* r*il **mpling $ata {ry wn*-v*laals, uga*ie r'wzrynfu {fiVffi,a1, yt*icula*y
plycyclie al$rrhlir,lty&xmafu* $A*Lx), vtillfu Me {et lrw wt* uryr pozd.
1mtM*rh,'Dybe&tsful *ollwt*4bwfurwr*d *oil wnrylu is urfur * a,tlabli*.bwkgrwxd
cnlfturruatian* tw rw*d* d *w**t a tfu lwility " &wd ur, tfu rtxxlts *{ &w wrtpl**, t?* ffiyixamt
i* unabl* to &t:eryrur* it t?* wttwrztratiryx al **us*iur* an& a*l***y M* br *WMA 7 r*ry*,wr*
r*tida*trwt*ary$nxior*rbwkgr*w*.. ln*r&rt***afu,ihlx&atarmirtariwz,*fuAyi*iux.typc4ly
r*qatrax t*w a,x. af **xZ *f ruruwby7mXfu.*ir.
For a valid test at fiwahs hyrxJtllesis ta*, cnrriructeA, aminimum ol eighl *ampks is rcquir*.. Sirre
thix mmple xiz* rryuirun*-ntixtwlrwt, a&rutw*ryartwtof **evakxt*fu*#e$dvatrwryi1lfuya
lq * !rr&, ,* &*smiw it xite vatrtm* ar* **v* ar Moq ba&grw*4 vakw. C**p*nxg r,*w*r*atim*
this v;ay nwy rwub. at ut inauarut* tawuia**x*n &mt tfu maal* W*et ara {rutn wzrMnal** **"
,x# M r*lwxd by *w fmLli{y in*u*d *t bankgroztad.
'&as& w tfu w ulabla det* tar lfu SWMU, trwlh u?rpr, wttth uryr M rki&fu lw u ryt*a, it
spryaffi h*t *w w$a&* *ry*wrwatim a{ t*al crn*#tiaffi AM in i*ww W*, *xM fu waraga
bz*kgr*a*d *uten*aliolr. tM" fu* fu* ex*&. ln &iu*n, fuxwala*t **wLwx 'wwatr*fiwx
&tw;l& e t w pw** oxM /*w, U* *? A re*i*.*i* wn e*gua*il krw*i*TL*val {X*U.
Ta*I *ssr:txm dda $ray W a**fu\ zn dAsxuzt*gif cbruzwamix *f p:aa*il cffic;t* at a r;itz,by
wmpui tte tetel t**miiambwkgt*::dl*,rel*. #ztar*wu's*ri*ky x Mwtta&by ix v*rw x*e.
lx *v*uatzug tixb* **r* ax?ryffit* t* cbr*zzrianrr, chr*mrun xryiatiw dwrfrk ryt xe {i,a. tlw gr.Wfiie
o{ Crtltr) u* Cr {Vl} i* 1&al cbromiu*}. Si,w ?*xwahat cbramhyrz fu*a l*t .$ryMfi 1 dw&y axtxtx,
and xtri$xly *xwd* r?w ?, L fur rmi&*tial *ai|, futzo N*b*) mary waat * fuarm'iw abwkgrwa& fu*1
t*r fux,zvxl*rg, cbr*miym in Lfu. wea arxd tzw i*zt vahrc t* coar?axe t& fu3ffifuhr" *hru*ban
c$fite*uation* fumtd *t tha fiWMU.
7n &&iti*u,bM *n fu dht* avaLlabl*, ttrt* *aw,a*waa** a1 w*irxw*y fuw*,A i* tfu u,i&la *w*r
prrdaxxwd*rfu,*xiMld wil*fiL a*rsteh **tlx. Nvua6abw*grux*wwr*eiwby taruu*rxaf
uagnita*.
WNx&*trk& 7 uh farzy ard tw SW74:.A 1
klleir*gwxantwiv*xarrylu{r*ut*ww*tharytp*4tarw.xtta*luil*a*zlyx*iwhdi*g
??*1*" ?Afi M**is{, hr*rl* *rlt*r * qual b ar l*** tbw, ffiL wna& valrw*. Tfu rwt**
{*r fu, mr*^v*latils m*ryund.*qli*tten* wM a$A**:1ffiifubri*xt, nrd wllt*
gwafual*rXfiLn.
*l1wt *ar*plo* ax udcd tb &t$rci*e ab*ga** vsl'w {ryr'lwxavalwt" *hrax*wz {eerW
anwSz *amyt*x *fi tfu u*t af twn* carzb. WlryMir.
Corrwt Mdr*ieffi| w*plc* U tfu, SWMU I sa/* &Wt wr*t uryr *td *z&1a l*wu @.*{u baxavaloat ***rwn*um w nx&& *o that tfu te*, af ,xw*xx *aa* prfxn*A.
bllwl ddlli&*d **rryl*x u wM * azzwgi tfu bxkgt*tad vahm tu aa$zzwy * *a tfu
wxtat wanxw**fr*stM.
Call* aidrliurrel mrryl*s *" *?e fiWVrl) 1 &Mr* luw$ W* {&r a**iwy ax tM ru *u
t?w t**t at twa*x **n b* pwlaM {a* *1a*& a*v*, **w *xtima*y &tmld zt *w *frlMlJ 1
\'
rwk s
){w,
middl* l*w*r yar*d *xtwd* tfu a'vora*a ba*kgruatd asrrwrtrutianby twa ord*rx *{
*wgnitad*. 77tix largr dtf{orer*w way irdir,*te t?* thn ar*imaxy prcffint ix a *ant*rntnant.'by*a Na*l may w arri 10 r*xaxt$a ry {r*fur e,xcalt M ttx, midilla low *r Wnd).: N*r* ot th* wnwr*tatio** d*twt& f*r hexwealsnt clvaxnurx ar trtinLony et SWMU,
axts.4th*i*du*tti*l* L. bynanzy a:lwttarla"o*fiWWV 7 ynd*rthi*wnartai{ *it*
cat**l* *ra wtq**l*. Dyn* wwl* prabably w*rrt {# wai, o* wn*ifu,ru*g thi* *pLia* tntil
tlw. ra*ult* s{ ttle wmi-vol*ula sunpl*x *ru abtwn*d"
SWMU 2 Special Projects Building Surface lmooundmenr
gw"rt #n the avwl*le da* f*r 9WMU 2, it apyaru thet ths av$hge wntentratiefl *f total clromhtm
&tel*Aaxrm&stht av*ryt,ba*kgtutxda$tre*$atio* andfuxavnlsntslx*rr*uffitontot*ariofl*
M**MexMfu,rg*iMnlxul&*g1ffial&arutxrtg7*y*1{X8L}.
.,, .., ..,,.
hrw*ic dste!& at SW*rrl| 2 *lightly ex*&* Lhe *verag*burkground v*lxe. frfiw&vu1bw& **
fwility re*ard*oi*.1r:dlagwa*t& urdy$i*rw.orix, armnic dw*twt aryxtafu xx*n*titrsaat,*atwza
rcl*a$byDyrw$ober. Tfureforc,ttw}i,tisisndws*oiconci&rawu$ctab*sCOrcxthefx,tlity.
Xe*ownendd Tath {*rtx *rd {*t SWtbfrJ 2
Coll*gtsa*ry1** a**x&Atp &*rmiw *b*tkgroandv*l*o{*r?wxavzlwtchroxtiam{wllw
ur'eu*, *ar*pb* wtfu tsstaf uwan* e*afu rytotM).
C*llt*t *dtttwal *axryl** **WMU 2tu?nxwalontchro*uuxt**n*edd*atbattlw*staf
twat * ca*fu, prfa**A"
T'lzer,onrxntrzli**s a{fuxavalsatchratntu*&etwtdatSWMU 24a*&,*xc*dtfu,i*du*tri*l
KSL byt*o*ay*V**twtl*.*.SWMUZvndorthi*swt&iroif *i*csntxrll*ue*wagtabk.
SWMUv ? u* 4 Harth aad fis*h bur* ?i*
SWfulLj*3 fiM4ltwrafuasxtavat&t*Wzwk" Bafiedon*oilsampl*rcxzltx,it"ry*wst?tx
pe'r*t*arute e*nte*lffirtat x g*nually inua*xe witb dapth" ?erch\aruta k wat$ c*l*bla anAbtghry
m&i\*, whi*lt is why ttw Wvisi*a is ca*&$r& abat iury*t* t* gru**wa** Dyna Naful bas *grwd
la &dre*x tlzi* c**mmby in*talbrry u*r*itari*g wotl* d*w*-grdi*rx qf *fu $WML)s.
Due to the*cir*umxla*c&*,lhe$ivi*ion eau*idar* rfr$ecti\tt wtiarttafu mmpl*ie,without eit*
w*troh, dar tlw xail puia* af $WMUv, 1 axA 4, w*ztla t?* gr**z*dwa*r pxia* CIt tfu fiWMtJn, will fu
evaluat& itttfu **xr*bffid atz grusadwatu mantrari*gda*
Mouxrwtt*,A ?atb fuw ard for $VMU* 3 md 4
t *wlx frt tha excavali*st* with cL*a* fill at rl*x, SWMUs.: $ab*t aWa*?lwt tur the rnxullation of grundwx*r trw*i*ing w*llx.
$W?vITJ7 OldTe*t?it
SWMI/ 7 ba* W* axcw*i*& to re&svs KDX c*ntrur;farntiut. 17x rs*xlt CI{ ,rw lut rxn{x:w*an s*xtple
th* w*s wllwd stw'er& that tb* wr$e;n$atien af kDX wa* *7aw a d*,**,ctian li** af A,l t mglkg.
Tlw&fwhsailw ywnfua*r wrwaiaglevali*9.W55 *glkgwlx*bi*tutoarfur*ot m*gni**l*war
thut*w fu&ffi*ot li'mtt. i{W. Du*rn*rehiglrrxtability att&taxieity CI{*bX,tlwDivi*iaatw*
rqt;t $ld *A, DWs No*l demonxuats **t grutxdwat*r ha* wt Wn imp**e@ XbX.
Wonnwnfu{ 7 **22 tryw a*.f*r fiWWJ 7
: Cal*ulate**i:t*-*ryifrcbilutianwd At*naatlna?Klw WhYr*r **i:w-xffific*ailt*
ga**dwat*t prolwt*n crarrd&rd {or xcrc,anir*g *gw**t thsMbL or ,t*& ttrt* Hydsu* m*d*l ta
domanxtrat* that grcundw at*r hw *at Wn *rnpwtrA by c*thminatiqn hr rl& *W MrJ ": fiw tl tlwre. is u\*b th*l. cafl dawt ?,DX i* *ail &awu l* * **rz**n xatian at 5.1 ttgkg. 1{ xa,
mothar ea*frrm*lian xuapb *aaldfu *ollw*A trum*te {lwr at *ho excav&iar*
?l*aw nol* *at, t$r lbe text of. ux.an* hyptfu.*i*, xaxtpl* xz* t*r bxkgrout:4 d*u a*d xite daa mu*t fu,
qual. laM*tion,bwkgrou*dda*r&atewrit*tioashcluld}e.**ts*i*untwith*?Abwkgtwrtddx*
&wnr$*uio* xx,thadolagy. Alw" tbe 95?o u?Wr wr$td*nso ,iffiit {95% Ae, &1rstW uM m tha
*xwtqu#, ,wit l" wbe*lratia* t*,?C) t*r *omp*rt#orr* t* wrw*ing'l*v*1*.
, lf 19u l*v* any quaxu*w"g)e*w, call l*tt Yut&l *t {Wr, 53{&25? . &i*k re*axxwttt wlatd qu**t***
" "'t@'fu *irc*ts& tu fr,*r *fu ?t {ffi|, $3642r*.
bi,sisian af Wxx* Managun*a* *ad *adi*iiw Cw*al
trtNWlkm
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M*y* trss, U#&? A kagraa * {*rerl,
*ax$x*,o****ow**,fra&t&&*vit*tttn**t*1
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Io
EXHIBIT B
REGIONAL SCREENING tEVEtS SUMMARY
TABrE IPERCHTORATE AND SALTS)
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EXHIBIT C
GROUNDWATER RESOURCES AND
PRODUCTION WELL LOGS
of l.at t, iarora
tt*ua
orGROUND-\A/ATEH RESOURCES
OF
NORTHERN UTAH VALLEY, UTAH
Tcchnical publication lIo. gO
Statc of Utah
DEPARTMEilT OF IIATURAL RESOUBCES
198 5
f,igurc 7, Refercnce
By David !il. Clerk eud Cynthia L Appel
9t
0it':
,v;i )>fW--:ffi
WAd
'-Generarized brock diagram showing water-bearing formations,probable direction of ground-wat"r rorir-"nt (arrows), and areasof recharge and discharge.
Figure 7, General Hydrogeologic Diagram for utah vally Basin
Dywf{ofulkx,.
Ydb,ffituM..fiil*,W ",
Wgar* 3, Ug#g T apgralryhl*, Qwdnryls Mxg
W
PLATE I
*t*Y&
*lr*w
sc
a rraag6ffiBrt q,l,{t *,( OaAl} jgwrt a*xAtfloJ *b sfir$rf ro#llt{'f!ffil{ *lxxugfix $mrE rfinasatt isnl ntfi!.., tfri*N*Ya ri,lr;fil.rlI ltr lGr Inn rr(6I wtlgw\o rr*t{!rr,8,*0ttt *Jkr rffiollt#ilo*t xA***t.ca7 fst*qw<a,, *ffi iA,t 3tD*f!ftd.r (AKrtt
Y frllfiJ#[X,*
t*:ril,tlab l'r*xoffia&t'
ffiiilfr6tM,*tb
atl.ra
i*l*tr',t,ffY*
b*ww
Wt$tNWW
lll
k weV.
(3) NATURE OR WOnl( (clcck): il.'e,.D E
bh.*d tf,.l O D.ira{ O f-& O Abra- O
lt aLaaarEt aaatat st tLl a.. tG.arni.--
(l) NATT RE OF USE (chocl):
Drarttr 0 ta-Ef.t O Iuldrl O at-!'.E O
lnl&r,lo Cl . I!.ha O Oll.t !:ar *oll
(i) TYPE OF CoNSIRUCUON (chcck):
'r\;
vpie e W6tt-
,..- tclh'cet ile}I clnEPOST Orr WELL DnILLEB A,,r-rri x._
6T tB OP UrAn
C6ialilL tl&-,
1
d[z,-srs-.,
i! C"nn^a SflftitrtEltf: Rortort o, y.tl .trlllcr tr hcrcby nrdo rad lllqd rlrh tl. St.l. Erglnror. h etc-ordrnro-rltl th. l.Y.9f Uur, '(t ii{tiiiil-*-*iti t i-iiiij rin'rni Strb Earlaret dthr! iO dryr rtt:r th. cornprotlo. e or .brnJonncat 6f l[1 vrll. Fallur to fih ruch
I itponr ioortltui.t . ,tlltd.D.rtror.) :
E rLr rd - - 3t-- r.t,/rt* rrl--35-*-ld ar.'a.a rner---4---troa
a&.a.r i!.s. - -__-;-*,-.-,-J.r
fdrr.tr.t r, -.trr--.-,.--.!---* 9....l'a&r, a..iF!. r.rrt lr. O' l. O
s1- 4s[i (2) LOCATION OF IVELL:
i c-..- --U-lg-lL-- cm. v.e hi.
---
i --- -- --- 11..{ $..rtffii ..3-rL9.L r* 3" .-l.r 9-5-9-r- r*-*lll c*,.&.th ?ia
r r-.ur.- 3-0* ... r-6-- -T . .-L-- j{t$r"*.
}io?tr: llar o 'l' lc ,f,..r.r.r oll..tL. a, .t.s t ra, E a6aai.t tl. a.brlrl.. a,l.a..tln ci .d.fi!' r.ldttdl lt .el adl ,fi(frl Ur&, lE!.AlIt :rir rrrad1r.{.1. d6 .. E &ri.. d ft,,, .aa lh ..L.. Sa Gt$?a 4. a, ad.ri.l .i.6!r-l l. rt &!.1 bra.l lr- .aalrb..l .lJ t l, r.al.a.
(lt) $rBLl. l"oG:
tro**,truln*-. .-.4fl.0"-
Dti{x
Ol..d.r t{ ral..--.8-"*.----- t t!-
-*--r$ Do.t rr -o.ri!6ra al*--487*....--l*
ttrlltt!
but1' Oc.U. b.
(5) CASING SCHEDULE: t-.ce o rrlrr. &
-.1-0--' Drr !..Jl-a.r l-23l.r- c.rSl!!d
--t
- Db-.G0.....rd ,-A&L-rn osS.iind
ttc X trcr O U..a O
(?) PERFORITIONS: rirroorrr rr" $ xr olD r, ts.r,.ry .* --.-ULU.-s-. --:--r.r .r rrro,.or.-.3-/l 6
-t*r-
v L)/2.^..-turr,j"8,.9--,*.*. t*.212----tn- {$.5-.--
dsLdl.. rft-J..| L----*J-t
--Fr6ai.
til--rd L- - d
--t
r-.a46. le-!*r F td
-.a.t,.adbt iL----J-E t td
(S) SC8EENS! t{ ga r.d.o.tt t O x. b
I6rraal.B'aXa-
D{ODrlrn O
,MO
Laa O
I.td I^
-(9) CONSTBUCilON:
v.. Ell lEr.l r*L.ll lt O fao 3 llI ol trrolr'.--.;-
G..r.l ,L..a lrr-...--. ..-.------ d a__- --...---,-3$.. . .ar... bt tEl&at la O l{. O
t .I.l ar.lr--.,.... .*----.*rd
,lll,l.l n.a o rel:. -. *.-.-..-..-..-.."
Oa.^r.g.lt st.l. s.u.it grkrl lo .O, , X.- Cr
ltr.., r.brr.-.-. .-.., D.pif ?f sr.tr----,
I.H .t .6lllri ...... .rar-..----.-,--.-.:.------
Y.. .r.1... ...4{ s, t
W.. k a.*.t.!, l,a rb..?
(10) lvATDn LBvDls:
y.,i r.ir.r t'tafch 3-O- . . ..., it? ) c-rr.,-r.---lLill- I ? . ,11
rioNeO
lobxco
(I{) PUIIIP:, ,
X..rf..lrr..'. X6a. -
O.|{L G trnt .! L-1.. ... .. . ... ..- .--..,..,.-...-....ld
(rt) DLoryrNG wlll,l:
C..rFlld tr f.r-r, Vrtrr O
Crr O ltot O X. C.r.nt O
Dh r.ll h.l ..{ra .gl{t lor g
&rrir trrrt 2 4 9 . ....- r-r &ur l.rr n t.r. orn.1./.3../-1.). -
An..r.n lraer. . . .- -.. ana .Lr. t.rJ .oal... D.a -,,..----..-----
t6G [ECE['DD:
\Vrtl Drillrr'r St.tcnrcoa ;
,, u-olow LA v)z LL
iil ll!.tDr-De
o..,.. ---.. -...-J Lq Iz:... -. -i*rl:; . -. - --rdr..., !. "....^iltQ.*-- -.. ". r.-*ii.kl-.
d\fraRtq[:tffiL-T,lfr gffi.Lwfr1.sl#,"ffi ffi*if.l'H,*Iffi ,:r:iffi ,hie$Hrs.hlr&u,*traDorta coBtitut t r nbdcncemr.)
f,{-4So r.- . . ..I8M'C[BftClffi-*3r- 7-25_ I-onncp-ol-t_gldg,,Se-Gg[33_
(2) LOCAflON OF WELL:
ccotrr lrt-ai ........-.. cu.a r.h rrL--._-"-.-(t .r l!.r1,
- 150 . . r.* o.. ...25g.g..-..t- r-_.!DL.c*&orh '-f,r-
, r*.r.. 39.... . , t -6 ...-.: r-1-.--'.s',..,rr.! TID-*t E.a m 0aaa.al
(8) NATUBE Or wOnr (chccl) f lt$*,lBrrlr
lal..Dt f.[ O D.r..ttre O ta.l, O l.t {n O
lrrfrateo 8frrf"....-...-.,.....-
CtLa -.---*-,.,..
(I) WELL OII'NEB:
l, .t ranal a..rlL ra.ri.l ra
(l) NATITBE OF USE (c.hccl)r
Dr*c O fra (f tor.b.t O tGtirr OtEa.rLo Ibna O olL O nrat{
(5) IYPE Or CONSTBUCIION (chcct) r
tat
Lna
(6) CAITING SCEEDIILE: n'-ar s r.gE
-E-' ID-- orc ro--0--rr - 33( .- *-322-
REPOBT OF WALL DRILI,EN
STA?E OF UTAtr
A,rr-,.6 "-f ""tlilcESlgi-20-Chrr th--Z:-
c...r'rb x-J'D--b'J-13A-h4La,
(f2) IIELLTESIB: 351ffif,1f;!!tnb rr.tr rbt'.rb16
Itr r tst bt..a.t tc B Xo[ t e lr rl{r-
tlddr,. .... .,. ,..-.,.-...-r.lJrt!. riL-.--..--..--.r- at$am .nr-**._..,.1aa
erltrr n .20......-.........DV.!L r|rt..........3....--....f..a f-.f- .fr-J--..-.f-oAfibr nt..-.....-- -.4,t1 D.a.---_
?no.r.h., *_-6.f--- ?r..Ld..t [.!ta. ..a.t f )B t O
(18) WELLIOG! or*.d dl-. llgbt.-._.-.*rr.h,r,. .*.'.-.160--.---* orr. ,..nn n . ro--tlf ----*.
l{Ol8r ?!rcr u A' !r rL as r EL.$L .a t - ta{.a lo artle ll. !.d.rtfr#H*ffi8H"*sEt r{ lr -a ar$ Ltcel l,.r I
,,.j, O Di. OcrrL ll drr O
oo
Or.a
(7) PEBI'OBAfION9:trlmrdt t- O Xo lf
Irr. d ,rr.rac ra
tba .a r.rr6a5...---_._.-lr.L ll----ff.
*,-....--Drralb.. n--*------Jl, + ,.r.
*-**-r-,a{il rr---Ji } .r{
-.-,*--tacri.g-. n----r- - .+
**,-t .i!.d.aa n------raf ." .lt
--,-t-!.ccaane---r--.,.a- ' n-
(8) SCREBNS! rdr..rr.r.&.r r- o xoE
&.rfiat6.ra
Lad Xr-
DLr,...........-....-&a .L.-,-....*-.}r rn--tL t
Da.-...,----,...-tba .lt -.--.*--&a lt----n b-
............' gLl l&.-_r.t ic----..-ia OIr-
........,' Dr.i l&-'.r-r a*---.fta OrL-
(9) CONSTBUCION:
wa .dt a6nt r.&at L O *n &bt. of .[rlr_-
Cnrl rL.aa rm....--.-....-.-'.*_ ftar ao-*.-._*--r..allr r.$f& -l dl-at ,- l(f tf. O.ro rL.r itDilt..... . l+5....-..-,-.,.-".:* ..-11rr.,r.r D.d o -r,. CcnQnt..-Senlonlla-4 -83:i:a
OL .., &.[ oul. urubt r.ht Y- O Xa g
ttD..t r.h:.. ,.,....-..... DO.f ***-2b)r.r.. .r Err *.., *r,..'.E91-9-?49C_dL-
fE srrE r.{g -ath li cr.a lr C.-?
,rOt-o t.E
lio O
(TO) WAIBB I,BYEIS:
&.rr. ror 2*,.. -.r-*h..ida nJbl7i-ftll Hlht'r 8arla.!t!
tbb rctltb. bc.t ol
NrD.
Addrn
($t .d)
uc6-No---63"
at.
tO6-
AftLc,nw......,...-...rd alr. l.ra rylo D.a.-
(rr) Pr,owrNc WEII:
C-t .O.a f, (.f.*, V.h. OC., O Dti O tar O..rr.l C!D-. rdl l-l xma cll.t tr C!ll.o
r.'r ilrr.a-...-.!19.Y ^..?I - -. - -
mD.t"LtoD, rDd ftb nDost h tsra toh. (ttrtUcrs Ltc. xo. 6?)I.oE iECEIVED:
I,aa otiti tDt tor l.DDt?tox I. ltrArta A
Dyno Nobel Inc.SWMUs RFI Work Plan
The ,,upper" well (Figure 4), installed in !973,is used infrequently, due to a.reported yield of 4
gp* Co'Crta , \gli, is an attachment to Appendix P, ?1h{'} Report' tn{ttt9'Appendix A'
Ground-Water tn
"rtigation
Phase I"). Thl''upper' well is dri.lled to a depth of 490 feet below
grouna surface, ,*.i to 487 feet, and pttfotateg at depths between 275 and 485 feet'
Unconsolidated materials were encountered to a depth oi ZIZ feet with Hard Red Clay
encountered at depths from 230 ta 212 fee.. A smdf amount of water was encountersd at a
i"Wi{ ZIZ feet, where darkblue shale tb*og2yw*seawwWa*.A*w*lnlawaxtwtedtobe
trra", at a depth below 403 feet, and wr'itwwxng*mar$-sf wlto' wrswffA As noted in
DtM (lg1s),iA rhule statum forms the base o{tlw&aatbhaLimwls*afio*na*w. Bedrock
in the vicinity arps westerty. Bedrock is not regarded as an-aquifer inlhe araa,"'." A recent
record ofthe statio water level was 249 feetbelow ground level (Letter to Mr. trdaok Croft, of the
Dvision of Water Quality, September 12, 1996).
The nlower,' well location (Figure 4, northeast corner of the operational facility) was selected as
the most likely location to ac-hieve the desired yields of 20 to 25 gallons pet Ti}ry (gpm), ""',
rin " ttr. gr*irrt depth and thickness of alluvial fill on the propefly is expected'." (D&M, 1915)'
The,,lower" well was installd in 1976. Historic boring logs, ground-water analytical
information and the Well Drillers Report, from the "lower' well insallation are attached in
Appendix B [in the attachment to Earihfax Report, as (Eart]rfax) "Appendix A, Groun&Water
Investigation Phase II," D&M, 19761.
The ,lower" well is situated approximately 170 feet lower in surface topogfaphic elevation than
the ,upper" well. Samples ii a.iU cuttings were collected every five feet for-sieve analysis
(nesulti are tabulated inD&IvI, 1976). Significant fines were encountersd at all depths. The
io*"i portio* of the boring containei more than 507o retained on the number 200 sieve. Well-
cemerited alluvial materiils, and a considerable number of boulders and cobbles were
encountered while advancing the boring to the 335 foot depth. It was notEd that ttre particles
were subangular and often coated with a skin of calcium carbonate. The water table was
encounteredinitially at a depth of 245.8 feet It was noted that the water was quite warm.
Blasting was required to advance the hole at a depth of 269 feet. Prior to blasting, a bailing test
*ar perfor*ed and a water sample was collected which was sent in for analytical testing'
Cround water temperature was measured to be 87'F. The boring was advanced to a depth of 333
feet, and another bailing t€st was conducted and water sample collected. Groundwater
temperature was measured to be 9?'F. Bedrock encountered &om a depth of 335 feet to 360
feet consisted of reddish-brown to browrr, fine grained sandstone and siltstone with some gray
limestone, apparently well-fractured and believed to be the Humbug Formation (Dames and
Moore, 1976). The hole was &illed to 351 feet and bail tested. Results indicated 22 gpm with
no drawdown. The hole was drilled to 360 feet, cased to 336 feet, and pump tested at a tate of
29 gpmwith 5.5 feet of drawdown" Ground-water temperature was 107"F. Depth to the static
water elevation reported on the Well Driller's Log was 236 feet (conoborated in 1996). A
September,2000 Page20 Revision 2
Dyno Nobel lnc.SWMUs RFI Work Plan
second water sample was collected.test results on each sample indicated high total
in D&M, 1976) . Among other constituents,dissolved solids (Complete results are
total dissolved solids (mS) ooncentrations generally exceed drinking water standards values
(TDS at greater than 1,000 mg/liter indicates a slightly saline classifioation for the water source).
'ihe higtrwater temperature could indicate upward flow of deep circulating more saline thermal
water,lypical temperatwes of water in the valley fill are between 50 and 60"F. The aquifer
below Site B is classified, using the State of Utatr Drinking Water Rating System, as a Class III,
Limited Use Groundwater Aquifer, based on the data available.
2.7.2 Off-Sit€ Wells
Wells that are used for domestic, industrial, and limited agricultural purposes exist nearby.
Nearby water availability and qualrty was discusscd with looal Town of Saratoga Springs, City
Councilman, Reed Wayman (Personal Communication fi/15198). h/tr. Wayman indicated that
many of the wells tested (while seeking a source of wator looally to support the proposed
developments north of the facility) had high TDS concentrations, in excess of 1,000 mdl. Mr.
Wayman owffi a residence located on the north side of the facility (about one-and-a-half miles
north). His well is the nearest north well for which water quality information is readily available
(refer to land owner information for approximate location, Figure 4, at "8", see legend). Mr.
Wayman indicated that the well is drilled to about 165 feet and completed in gravel. The well
was constructed to inigate his peach orchard and stated the TDS for this ground-water is in the
range of 1,800 mg/l and the salts killed many of the trees; therefore, it is no longer inigated.
Several north wells are completed in alluvium. The Joe Roberts well, which exists at a much
lower elevation, was drilled in alluvium to a depth of 180 feet, has a static water level of 105 feet
below ground level. No watEr quality data is available. The wells plotted on Figure 4 located
north of the facillty would not be expected to be impacted by any groundwater discharges from
beneath the facility as they are not located directly down gradient.
The nearest downgradient offsite wells are located east of the facility at Pelican Point. The
nearest of the wells is located alcrrlut 1.2? miles east of SWMUs 3 and 4, the inactive burn pits.
SWMU 3 and 4, located near the southwest corner of the facility, appear to be the closest
upgradient SWMUS where potential impact to these wells could originate. One of the wells is
artesian (Rosa ke Barnes). The two pumped wells were drilled through clay, sand and gravel
deposits to depths of 140 and 200 fept, west to east, respectively. The eastern well (Cedarstrom)
reported flow of about 50 gpm. Ground-water temperature recorded from the eastern well (Rosa
Lee Barnes) was 50"F. Note that Site B well water temperatures are near twice this
temperature.
September,2000 PageZl Revision 2
O** /y;o Tszto
GROI]ND WATER INT/ESTIGATION. PHASEPI,AI{T SITE
h}EST SIIORE Or IN'AH I4.KEIrlAH CoUNTY, UTAH
FOR IRECO CHEMICALS
Dames & Moore Job No.6454-001-06
(W
5iCuL
5!.rrf[ 2CO, ZEC i:/r,5T Ba,a4f")u].\!''(:.1B !-E: llf,/l.r.i l:l,iOi 'j
gdia t.rr,11[ ci"lr, !i].{Fi 3?.1{r {ttaa,) 359-417;i4.rY.,)(: 9to-gi35-|.;69a
0ctober 1, 1975
Ireco ChemicaLs
8600 South 3000 West
West Jordan, Utah 84084
Attention: Mr. Robert C, Stokes
Gentlemen:
Ground Water Investigat,ion-Phase 1
Plant Site
West Shore of Utah Lake
Utah County, Utah
For Ireco Chemicals
rN?RopupT.rory
This Letter presents the results of the flrst phase of ourinvestigation for the development of a ground watersupply at your plantsite on the \,rest shore of Utah Iake.
Ihe purpose of this study was to select the most favorable sitefor a t,est weLL. Opinions were to be based upon an assessment of the
geology and hydrol-ogic condiEions in the site vicinity by means of fie1dinspection, aLr photo interpretation and study of reports and records. Theultimate obje.ctive in subsequent phases of the program is to .supervise thedrtlIlng, development, completion and test pumping of a test well as dis-
cussed in our proposal- dated AugusL 20, L975.
WAT.FR SU?PLY NEEDS
We understand that a Long-term, continuous Brater supply of 20 to 25
gal"Lons per minute (gpm) of potable quality is desired. The intended pointof use is in the central part of the lreco Chemicals property as shown onPlate 1, Vicinity Map.
We have been asked Lo consider a weLL locatton on lreco propertyor property owned by lvtr. Cedarstrom, which occupies the southeast quarterof Section 30, Torrnshlp 6 South, Range 1 East,
Wge-'ffiWW W. W'ffi*WW
Ireco Chernicals
October 1, 1975
?age -2-
EXISTING hELLS
Several welLs have been drilled in the vicinity. Data regarding
depth and yield of the wel1s are Presented on Table 1. Well locations are
shown on Plate 1.
The r^rell on Ireco Chemicals'property (Well 1on Table 1) was
drilled to a depth of 490 feeE. Unconsolidated naterials were encountered
to a depth of 212 feet and shale bedrock was encountered ftom 272 feet Eo
490 feei, according to the driller's well log. The well caslng extends to
a depth of 481 feet and is perforated from 275 to 485 feet. A recent
bailer test performed in this well indicated a maximum yield of about 4 gPm'
Most other wells i^n the vicinity are l-ocated alclng tire Utah Lake
shore and reportedly produce 50 to 150 gpm from unconsolidated deposiEs.
A recently drilled wel1 (We1l 5) belonging to Mountain States Lime Company
reportedly produced 50 gpm from unconsolidated material near the mountain
front.
qFprocY
The site is situated upon a narrow alluvial plain belween Utah
Lake and Lake Mountains. Bedrock exposed near the site belongs to the Great
BIue Limestone, Humbug, and Pine Canyon Liaestone I'ormations. Limestone,
sandstone and quartzite are the dominant rock tyPes. A shale stratum,
however, forms the base of the Great Blue Llmestone Formation. Bedrock in
the vicinity dips westerLY.
TABLE 1
i,iATER I^IELLS rN SI1E VICTNTTY
Reported
Yie Id(som) Comments
4 Casing reportedlY Perfor-ated in shaLe bedrock
Completed in aLluvium
Completed in alluvium
Source of Information: Utah State Engineer fites and verbal communication
with Mr. Trap, Ireco Chemicals.
We 11
Re fe rence
- No._ NgFe
I Ireco
2 Neilsen
3 Cedarstrom
4 Cedarstrom
5 Mountain States
l,ime
Total
Depth
(F.'ee t)
490
351 150
140 60
60 60
300 50
Yk;P+s4W& #, ffi#S$:,pffiffi
lreco Chemicals
October 1,1975
Page '3-
unconsolidated deposits include fanglomerates, minor fluvialgravels, lacustrine silt and clays and minor !hor"line graveLs. These mate-rials were deposited upon the eroded bedrock surface whlch rioi"" generarlyeastward.
Gravity data indicates that the utah Lake Fault zone which forrnsthe western edge of the large graben which underlies utah Lake and the provoarea lies east of pelican point. Therefore, T^re do not expect a majorLhickening of the uneonsoli.dated deposits near the site.
At the site r,re expect that relatively thin lacustrine silts andcLays overlie pre-Lake Bonneville alLuvial fan"deposits.
cRouND-wAlER CoNprTroNs
Littre data is available regarding ground-water leveIs in the sitevicinity' The base elevation of the rrater table in the unconsolidated sedi-ments is controlred by the Lever of the utah Lake, since recharge from theLake l"lountains is probabry quite smarl, the main \^/ater table is expected tolie at or a littre above the lake erevation of apfroximatery 41500 feet.Thin perched Idater tables rnay exist substantially above the lake level butwe would not expect these to be slgnificant water producers.
DISCUSSI0N,S AND RE COI\0{FNDATI0NS
GROUND.WATER POTENT]AL :
Bedrock.- Bedrock in the site vicinity consists principalLy oflimestone,Eidllirre, quartzite and some shale- Bcdrocrr rc nnr- eaaa-A^aand some shale. Bedrock is not iegarded::.il i:Yll:.^ in the. area-bur rew we1ls have been ariii.a-i"1.'u.i".i"iro.o
gtdLcporosiEy in surface outcrops. rf moderatery fractured or if moderate
::1:::::1:c-ll:,occurred ai depth, rhe limeston" a,d po""riir"'_."ililr,"" "ra::::*i:":^;::11- t::':-': :^*'1 to modera." vi"ii- .
" -d-;il'.;;;;';il;
lll;lli"^:"1:lr::ll,anct fracturing wourd decrease ,ii,.-o.r.n=lll"inl'J"ln"
that the known ground-warer porenti.i ;;-;";;"",.-r5rr"".;=r*;";;'J;it:::..
Unconsolidated Deposits. Weand shorelffiitytens to several hundred gpm below themain water table 1ies at or a littIe
believe thar alluvial fan depositshave a potential of yielding severalmain r.rater table. inle believe theabove the Utah Lake 1eveL, about ele-no data regardtng ground-water qualityground*water produced fr:om unconsoli_
vatton 4,500 feeE. Although we havein the vicinity, \^re expect that thedated deposits would be potable.----
o
Ireco Chemicals
0ctober 1, t975
Page -4-
rEST W.ELL I,OCATI9N AND ESTIMATED DEHTHSi.
We have sel-ecEed two alternative sites for test wells, one uponIreco Chernicalst property and one upon property owned by Mr. Cedarstrom.
Recornmended drilling locations are shown on plate l.
feet would be required to dellver water to the point of use shovrn on plaEe 1.
At site B, we would expect a greater depth and thickness of uneon-soridated deposits than at l"ocation A and, hence, a higher probability of asuccessful well. We estimate that the required depth of a well at locationB would range between 250 and 400 feet. site B is located upon propertyowned by Mr' cedarstrom, and therefore, ownership of Ehe well siie and pipe-line route must be negotiated. A pipeline of about 51000 feet in lengthwith a verticaL rise of 225 feet would be required to deLiver srater to thepoint of intended use.
Location B would be drilled only i.n the event that a test weII atlocation A was unsuccessful.
RECOMMENDED PROCEDURES :
We rec.mmend that the well be drilled with a cable tool rig andcased with 8-inch-diameter steel casing. A complete log of the drili holesshould be maintained, and representative samples of the subsurface materialsencountered during drilling should be obtained every five feet for evalua-tion' When the well- has been drilled to sufficlent depth, a decislon maybe made as to whether to convert it to a production well. The well may beeither perforated or cosurercial r,qe11 screen installed utilizing pu11-backtechniques or other methods.
b--i -An approved well application must be obtained from the Utah StateEngineer before drilling can be commenced.
We believe that siEe A is the rnostwithin the Ireco Chemical propertyr. since theof alluvial f111 on the property is expecredrequired depth of a well at location A wouldA pipeline of about I,600 feer in length with
Our opinion is that location AIreco property should be drilled first.shorter pipeline distance and is located
favorable location for a wellgreatest depth and thicknessat A. We estlmate that therange between 350 and 500 feet.a vertical rise of about 100
in the northeastern corner of theLoeation A has the advantage of aon lreco Chemicalsr property.
*P#hffie* ffiS m gkqgwem#
be construited in accordance with rutes and asgu_Engineer and the Urah State Deparrmenr .t ff*"iii.
oOo
If you have any questions concerning our report or wish assistancein preparing the drilling eontracr, please "oit..t u".
Yours very truLy,
DAMES & MOOREA///,*rrAkh
tr{illiam E. Mead
Partner
Ireco Chemicals .
0ctober 1, Lg75PaSe -5-
The well shouldLations of che Utah State
IGM/GWC: ab
Attachment: plate
C*fd,&"X,,L
George W. Condrat
GeologicaL Engineer
AllcBorl.cGE souSToil
AII 4,ITA LOS AIJGELES
BET8Elso^ Nev/ .oRi(
cl[caco PtloEtrtx
cINCINIIATI Po'tYLANo
cRAa{FOAO SAtT t. he ctTY
oexvah 5Al, rE^ficlScO
fAIEBANI(g SAIIIASARAARA
BOHQLUTU SE lTt.C
v/AsHrNGTolt, o, c.
ffiBd&Mffiffi W- WffiWWWW
cot,SuLTA}ITS lil lHe eltvtRoNt,lENlA! At{D AppLtED EARaH 5CrrNCfS
CALGAAY PEIIY}]
OU.\td SEOUL
.,A(ANTA 9iT]GAPOFE
LAGOg TqBRAN
lo&ooN lQROrlIO
t.rAoFtb TO|(YO
vANCOUVER, g. C.
sL,tTE 20cl,25O {:A5T AROADWAYCAI3LE.: DAMEMc)RI:SALT l-AKL Cl-rY, UlAli O"lllt ' {aOt} 35O-676-4'rwx:9to_9a5_569a
April" 2L, L976
Ireco Chemlcals
8600 South 3000 West
West Jordan, Utah 84084
Attention: Mr. AL 0sborn
Gentlemen:
Ground Water Investigation-?hase II
PLant Slte
West Shore of Utah Lake
Utah County, Utah
For Ir.eco ChgJnigSls .-.- -..
INTRODUCTION
This letter summarizes the resu!"ts of the second phase of our lnvesti-
gatlon for the development of a ground trater supply at your plant site on
the west shore of Utah lake.
The purpose of our Phase II services was lo provlde technical advice and
supervision for the drllling, testlng, devel-opment and cornpletion of a test
well at your ptant slte. In accomplishLng this purpose, \{e have periodically
inspected drllling operation, coLLected and tested formatlon and ground water
sampLes, supervlsed bailer tests and provided techntcal advlce. Iocatlon for
the test well and recommended drilling procedures hrere outlined ln our report
entitled "Ground Water Investigation-Phase I, ?lant Site, West Shore of Utah
Lake, Utah County, Utah, For Ireco Chemicals'r dated 0ctober l, L975. The test
well was drilled in the northeast corner of the Ireco Chemlcal Property as
recommended in our Phase I report.
Technlcal advice and prelimlnary concl"usions were provided by us during
contracted the well dril1er,the course of our study. Ireco Chemical Company
provided conslderable support during the course
pump tested the we1L.
of the weLL dri11lng, and
FBs-q*m#ffi96 & &4ffiq?ffiffi
Ireco Chemicals
April 21, L976
Page -2'
WATER SU?PLY NEED.S
We understand that a tong-term, continuous water supply of 2A to 25
gallons per mLnute (gpm) of potable quality is desi.red. The primary use for
the water is to be boller feed water for the plant, Although potable quality
is deslred, it is not required.
I^IgLL pirrLLrNG ?RqGBAl,l
The water roell was drllled utillzlng cable tool methods by Gardner
Drilllng Co. of Magna, Utah. Ttre well was inlttall"y drilled to a depth of
20 feet and cased rqith one length of ten inch diameter steeL wel"L casing' The
drilling then proceded utilizing eigtrt inch diameter standard gauge steel r,relL
casing. CasLng Joints were weLded. The drll-ler removed the temporary Een
inch diameter casing early in the drilling program. Drilling to bedrock was
considerabl-e slower than antlcipated due to the considerable number of bould-
ers and cobbles in the alluvlaL material. The dril-Ler found it necessary to
ream the bortng below the casing, utillzing standard cable tools, in order to
advance the casing. During the drlLting operations the casing remained free
in the hole, indicating that Che alluvial matertals were well-cemented.
Ttre water tabte was encountered initialLy aE the depth of 245.8 feet be-
low the ground surface. The ground \^IaLer was noted to be quite warm.
The welL was advaneed to 269 feet whereupon the driller reported not being
able to advance the hole without blastlng. Bailer test /f1, summarized on
Table 1, was then performed to determine yield of the welL. The test consisted
of baitlng the well for a short period of time and checking the resultlng
drawdown. Recovery of the water 1eve1 in the welL to tts origlnal Level was
very slow, Water sample /ll. was obtained and submitted for analysis, Results
of the analysis are presented on attachment 1". Ground water temperature was
measured to be 87of', 'It $ras then decided to drill deeper due to the poor
roel1 yield. Ireco personneL then assisted the weLL drill-er by deEonating a
one pound charge of Octol-expl.osive at the depth af 266 feet, Explosives
were again used in following days at thls depth.
The well was lhen advanced to 333 feet in depth whereupon bailer tesE
/f2, summarlzed on Table I-, was Perfofmed. Because of the poor well yi"lla
it was decided to driJ.l the well deeper. Ground water temperature was 97"F.
The weLL was then advanced to a depth of 335 feet where bedroelc was en-
countered. Shortl-y thereafter, the water leve1 ln the well was noted lo sEand
at a depth of 231 feet below the ground surface, some 15 feet higher than pre-
v ious 1y .
The well was advairced to 351" feet whereupon bailer test
Results of the test are summarized on Table L. On the basis
was declded to complete the wel"l- to a depth of 360 feet.
was performed.
this tesl, it#3
of
m,6hg&ffiH*s
Ireco ChemlcalsApril 21-, L976
?age -3-
s ffi@(sreffi
Test No. Depth of
Castne (ft)
244
264
336
TABLp I
SUMMARY _0r BArr,ER TESTp.
Depth of Depth to Statlc Rare of Bail-
llole (f t\ Watg-r- Level (ft\ ins (GPM\
269 245.3 10
333 248.L 20
35r"23L,1.22
Total Volurne Draw-
Bail.ed ($.af) down (ft)
210 L2
600 L7
1200 0*
decrease in densltyless than three feet.
1
2
*tlater level- stood at a higher level at completion of test due toof water in welL (due to removal of mud)-actuaL drawdown probably
TABLE A
RESULTS 0r SJEVE ANArY_SJS
DEPrH (fr)
15-20
235-240
24A-24s
245-250
250-255
25s-26A
260-265
26s-270
270-27 5
290-295
30s-3r.0
3L0-31s
31s -320
320-325
325 -330
PgFceIrt Flner Than li2-0-0jSieyg Bv We.teht
33.9
36,9
27.9
32,6
30.8
32.6
33.2
62,O
37 .4
54.4
46,4
55.0
s1. 3
52,0
s6 .1
meMffis & ffi@&ffiffii
Ireco Chemicals
Aprll 21, L976
Tage -4-
The well lras Ehen drilLed to 360 feet ln depth and cased to 336 feet.
Six inch dlameter slotted stainless steeL casing, provided by Ireco Chemlcals
co., was pLaced in the open zone from the boEtom of the boring to the bottom
of the casing.
Ihe well was test pumped at a rate of 29 gpm for four hours ltith a final
drawdown 5.5 feet. Followlng recovery of the water 1eveI, Ehe well was pump-
ed at the same rate for 35 minutes wlth sllghtly less Ehan 5 feet of drawdovrn.
Ground water temperature was LO7oF. Water sarnple lfL was obtained during the
test and submltted for analysis by lIeco Chemical-s Company personnel. Re-
sults of the anaLyses are present on attachment 2'
AQUTTER_gATSRrl\tS
SampLes of drill cuttlngs col"lected from each 5 foot interval of depEh
were inSpected visualty, Sieve analysis tests were performed on selected
sampLes io determine the percentage of fines in the aqutfer. Test results
are summarlzed on Table 2. The granular material from seLected samples was
lnspected visually to determine lithology and degree of rounding.
From the ground surface to a depth of 335 feet, subsurface materials con-
sist of virtuaily unstrailfied alluviaL fan deposlts consistlng of gravel,
cobbles, and boulders ln a matrlx of sl1ty clay roith some sand. Granular
maEerlal within the formation consists predominantly of gray to white llme-
stone whlch is occasionally cherty (approxlmately 707.) and f.ight graY, brown,
and reddlsh-brown, fine-gralned, quartzltlc sandstone (approxlmately 25"L\ '
The particles are mostly subangular and are often covered with a skln of
calcium carbonate.
Bedrock encountered from a depth of 335 to 360 feet conslsts of reddlsh-
brown to brown, fine-grained sandstone and si.ltstone with some gray timestone.
We beLleve the stratu* to b. the llumbug Formation. The rock is apparently
r*elL'fractured in the intervaL encountered.
WATER SU?PIY
WELL YIELp
The results of the brief PumPing
suiuabLe for your aattcipated needs.
T.IATER OUALITY
test indicaEe that the well yteld ls
Water quality is poor and does not meet accepted drinklng water standards.
o
tlp#Lffiffis & mffi@e}ffi&ffi
Ireco Chemicals
April 2L, 1976
?age -5-
The results of chemlcaL ana}ysls of sample 2 obtained during purnping tests
are indl-cative of the chernlcal quaLity of the water expected from the wel1.
It is belteved that ground water of better qualtty is not availabl-e in the
vicinity.
The total dissolved solids concentration is a relatl-vely hlgh 1,650
mi1-ligrams per liter. Princlpal consEituents are sodlum, calclum, suLfate,
chlorlde, ,ttd bicarbonate. Arsenlc, chlorlde, fl"uoride' suLfale, and total
dissoLved soli{s excede U. S. Publlc Health Service Drinklng Water Standards.v'
The hardness and calcLum, magneslum, zLnc, blcarbonate and dissolved solids
concentrations excede those recommended for boiler feed water. I,le understand
that water treatment ts P1anned.
Incrustation of Ehe slotted castng may occur wlth time due to the hardness
of the ground waLer. Iherefore, occasional acidizing of the well may be re-
qulred. Water Levels duting pumplng and non-pumplng periods should be
occaslonally measured to monitor well performance.
o0o
trJe appreciate the opportunity of hetng of service to you. If you have
any questions, please contact us,
Yours very trulY
DAI'{ES & MOORE
u],ixo;c.futa,U-
WtlLiam E. I"lead
Partner
WEM/ces
attachments
* U. S. Publie Health ServLce, L962,
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EXHIBIT D
SONIC WELL DRILTING
o
As a leader in sonic drilling, Boart Longyear delivers precise drilling and efficient operations with our advanced sonic rigs.
Using these rigs, Boart Longyear's highly{rained, experienced, and locally certified sonic drilling crews can reach depths
over 700 feet (213 meters) with minimal environmental impact. Whether we are drilling for environmental water supply
development, geo-construction, geotechnical, or mineral exploration, sonic drilling offers several distinct advantages over
conventional drilling, including:
M[ft{frM4fl"
[t{il.t
[tvtAnflil
tttmff[
t{AsTt
Superior lnformation
Sonic drilling provides a continuous,
relatively undisturbed core sample of
unparalleled quality and accuracy through
any type of formation. When using the
iso{low groundwater profiling system,
hydrogeological and geochemical data can
be easily obtained.
Waste Reduction
Sonic drilling reduces waste by up to 80%
relative to conventional drilling.
Speed
Sonic drilling can be up to two to three times faster than
conventional overburden drilling methods.
Risk Minimization
Sonic frequencies match the resonant energy of the ground,
allowing the core barrel to advance in unconsolldated
and difficult overburden formations, greatly reducing the
risk of project failure due to unknown or difficult subsurface
conditions.
Flexibility
Common applications for sonic drilling include heap leach pad
recovery, grade control sampling, and pre-collaring. Sonic
drilling advances a temporary outer casing as the borehole
is drilled, allowing more to be accomplished with a single
borehole.
Superior Well Constructaon
Sonic drilling causes minimal disturbance to the surrounding
borehole wall, resulting in more etficient well development
and performance.
o
Wffi:trffiMffi
o
ffiffi ffi$ffitrtrtr.htrMffim4flfl 'r#t ffi ffi ffi fl ffi ffi ffiryfr fr_h ffi Mffi
Sonic drilling employs the use of high{requency, resonant
energy to advance a core barrel or casing into subsurface
formations. During drilling, the resonant energy is
translerred down the drill string to the bit face al various
sonic frequencies. Simultaneously rotating the drill string
evenly distributes the energy and impact at the bit face.
The resonant energy is generated inside the sonic head
by two counter-rotating weights. A patented pneumatic
isolation system inside the head prevents the resonant
energy from transmitting to the drill rig and preferentially
directs the energy down the drill string.
The driller controls the resonant energy generated by the
sonic oscillator to match the formation being encountered
to achieve maximum drilling productivity" When the
resonant sonic energy coincides with the natural frequency
of the drill string, resonance occurs. This results in the
maximum amount ol energy being delivered to the face. At
the same time, friction of the soil immediately adjacent to
the entire drill string is substantially minimized, resulting in
very fast penetration rates.
s0ilr[ [sHttAI[R 0tAERAl{
$WWffiffiffifi- ffiffi$ffid
il;#ffffffifl]ffiffi[Jffiffi,
sffp t-E[I{t BARI{H.
A0tlAt{[tilil{T
Sonically advance core barrel
into the undisturbed formation.
No air, mud, or water is used in
the coring process.
$tP2-[A$lt{E[tltlln[t
Sonically override a latger
diameter casing over the
core barrel.
$TtP3-fiflfitRtTttltIIAL
Return the core barrel to the
surface Jor sample extraction,
STIP 4-npilT [[AE
A0lIAt{EIilt}tI
Complete coring and
overriding casing to
desired depth.
Hotating Element A
(Rotates clock wise)
Rotating Element B
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a larger diameter drill string that cases the open
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EXHIBIT E
COLTOIDAL BORESCOPE SYSTEM
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Evaluate "Cross-hole" hydraulic connections
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Colloidal BoresmDe.axp 08/29106
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* Not including laptop or PC
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Non-ROHS compliant, dispose of properly
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2.7mm x 2mm
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2650 East 40th Avenue . Denver, Colorado 80205
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email: [e-mail] website: www.geotechenv.com
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EXHIBIT C
STATI STI CALTY- SU PP O RTE D
BACKGROUND SOIL SAMPTING PIAN
Sampling Plan for Background Soil
Comparisons: Antimony and
Hexavalent Chromium at Dyno
Nobel, lnc., Lehi Site B Facility
April 24, zo:.9
Prepared by
Hayley Brittingham, Kristin Broms, & Kelly Black
Prepared for
Dyno Nobel, !nc.
Nrpturur nruo CovPRtrtY, ltrtc.
1435 Garrison St, Suite zor, Lakewood, CO 8ozr5
Sampling Plan for BacXnrortsoitComparisons, Dyno Nobet, lnc., Lehi#, Facitity
25 Apr 2018
Sampting Ptan for BacXgrorfroil Comparisons, Dyno Nobet, tnc., Lehi
ilt25 Apr 2018
Sampting Ptan for e"rxgroutoitComparisons, Dyno Nobel, tnc., Lehi#, Facility
FIGURES
TABLES
TABLE 1. PREVIOUSLY COLLECTED SITE AND BACKGROUND SAMPLES. ...........,....,,..........7
TABLE 2. CooRDTNATES oF NEW SAMPLING LocATroNS ......................... 9
25 Apr 2018 IV
Sampling Plan for a"rxgrortoitComparisons, Dyno Nobet, tnc., Lehit Facility
1.0 Introduction
In November 2017, the Division of Waste Management and Radiation Control within Utah's
Department of Environmental Quality (Utah DEQ) declared corrective action is needed for
SWMUs l, 2, 3, 4, and 7 at Dyno Nobel's Lehi, Site B facility (Utah DEQ, 2017). This memo
addresses the suggested actions associated with background comparisons at the SWMUs. In
particular, the letter states existing samples for antimony (SWMU 1) and hexavalent chromium
(SWMUs I and2) are not sufficient to compare current soil concentrations to background
concentrations.
Per the November 14,2017letter, additional background and site samples wilt be taken for
antimony in SMWU 1, and for hexavalent chromium in SWMUs I and2. Although arsenic was
identified as exceeding background in SWMU 2, it is not considered a constituent released by
Dyno Nobel. Therefore, additional arsenic samples will not be necessary for background,
SWMU 1, or SWMU 2.
This memo proposes a sampling plan for background samples for antimony and hexavalent
chromium. It is assumed that measurements for hexavalent chromium are calculated using EPA
Method 7196. For the three previously collected background samples and SWMUl, South Upper
Pond, hexavalent chromium was calculated as one-tenth of total chromium. The measurements
of hexavalent chromium derived from total chromium are discarded, and only the direct
measurements of hexavalent chromium are used. ThiS approach estimates the constituent of
interest rather than relying on a conversion factor that may be inaccurate.
It is assumed that the following comparisons to background will be made: hexavalent chromium
in SWMU 1, North Upper Pond; hexavalent chromium in SWMU 1, South Upper Pond;
hexavalent chromium and antimony in SWMU 1, Middle Lower Pond; and hexavalent
chromium in SWMU 2, Special Projects Building Pond. The same background samples are used
for each site-specific means hypothesis test. To clariff between comparisons, the site-specific
samples are referred to as pond samples in the analysis.
2.0 Analysis
Thus far, three background samples are available for antimony andzero background samples are
available for hexavalent chromium (Table 1). The antimony samples are taken from the
northeast, northwest, and southeast corners of the site. The Utah DEQ requests at least eight
samples for a test of means. Therefore, five more background samples for antimony and eight
samples for hexavalent chromium must be collected. It is assumed that the previous background
sample locations will be resampled for hexavalent chromium, and the same five new background
locations will be sampled for both antimony and hexavalent chromium. The selection of the
locations of these samples is discussed in Section 2.2,Power Analysis.
The power of the statistical test refers to the probability that a difference will be detected if a
difference exists, in this case between background and pond samples. Power, then, is maximized
when the sample sizes of the survey area and the background area are equal. SWMU data have
been collected at each remediation phase. In the present analysis, only data collected after the
remediation are relevant, which provides 0-3 samples for each constituent and pond. These data
25 Apr 2018
Sampting Plan for errxgrourtroitComparisons, Dyno Nobel, tnc., Lehit Facility
are listed in Table 1. It is assumed that 5-8 additional samples from each pond will be collected,
whose locations are selected randomly, to provide eight site samples for the means hypothesis
tests. This sampling plan focuses on the locations of the background samples and power to detect
differences based on the previously collected data.
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Figure 1. Sampling plan for background locations.
Table 2. Coordinates of new sampling locations.
Latitude Lonsitude Strata
40.2652 ttt.8773 SE
40.2748 -1 1 1.8841 NW
40.2719 -1 1 1.8848 NW
40.2687 -111.8797 Central
40.2736 -111.8788 NE
25 Apr 2018
Sampling Ptan for e""xgrorrloitComparisons, Dyno Nobel, tnc., Lehio, Facitity
2.2 Power Analysis
Statistical power refers to the ability of a statistical test to detect a difference in two means, given
thata difference exists. As sample size increases, statistical power increases. If variance is high,
more samples are needed to achieve the same power.
Power analyses were conducted for hexavalent chromium and antimony. For hexavalent
chromium, it is assumed a one-sided, two-sample /-test for equal variances will be conducted for
hexavalent chromium levels in each pond compared to background. For antimony, a one-sided,
two-sample /-test for unequal variances will be conducted. The assumption of equal variances is
made for hexavalent chromium because there are no background samples for the analyte. The
estimated variances for the North Upper and Middle Lower Ponds were similar at0.125 and
0.12, respectively. For all hexavalent chromium power analysis samples, the higher variance was
used. The sample size is assumed to be eight each for the pond and background samples. For all
tests, the null hypothesis is that the pond average concentration is less than or equal to the
background average concentrations, and the alternative hypothesis is that the pond average
concentration is greater than the average background concentration.
The observed variance after all survey samples are acquired is likely to be different from the
estimates used in the power calculations. Multiple power analyses are conducted for each
constituent, assuming that all the constituent concentration levels follow normal distributions and
that the pond and background sample variances will not change substantially with additional
samples.
Results of the power analyses assuming 8 samples are available in background and for each site
are shown in Error! Reference source not found.. The x-axis shows the true difference
between the mean concentration level measured at the pond site and the mean concentration level
at baokground, which is unknown. The y-axis shows the probability of detecting a difference in
the two means. For example, if the true average concentration of antimony in the Middle Lower
Pond is 12 mgkg less than background, this difference will be detected with 80% power if Type
I error (o) is 0.05. For hexavalent chromium, a difference of 0.35 mg/kg will be detected with
80% power if Type 1 error (cr) is 0.05.
25 Apr 2018 10
Sampling Ptan for er"xgrouJoitComparisons, Dyno Nobet, lnc., LehiJ, Facility
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Altematively, the sample size could be increased to detect a smaller difference in means. For
example, to achieve an80o power for a0.2 mg/kg difference in means for hexavalent
chromium, 24 samples are required, given type I error of cr:0.05. If a larger difference in means
is acceptable, such as a difference of 1 mg/kg, then only 3 samples are required for hexavalent
chromium, assuming variances do not increase with new samples.
3.0 Uncertainty
It is assumed that hexavalent chromium concentrations are estimated using Method 7196.
Hexavalent chromium is not naturally occurring but is assumed to exist at the site from
contamination unrelated to Dyno Nobel activities. Some samples from the Middle Lower and
North Upper Ponds were taken using Method 7196 while samples from background and the
South Upper Pond were estimated as one-tenth of total chromium. Including samples taken from
other quantification methods may not be comparable and hence, the background and South
Upper Pond samples were excluded in our analysis.
Especially for the antimony analyses, the complexities of the soil matrix may impact results. It is
recommended that additional matrix be collected to be used for the matrix spike and matrix spike
duplicate run with the batch of samples sent to the laboratory. This may help clarifi, any unclear
results. With antimony there is also a chance of background samples being below the method
sensitivity, causing the analyte to be non-detected. If a large number of non-detects occur, the
means hypothesis test may need to be altered.
Because the sites have been excavated, the pond-specific samples may come from deeper soil
horizons than the background samples (although they are collected from similar depth below
current ground surface). Differences in soil characteristics across the depth horizons may
25 Apr 2018 11
Sampling Plan for BacxgrornJoit Comparisons, Dyno Nobet, lnc., Lehi0, Facitity
potentially make the background samples slightly mismatched for the site samples (i.e., they may
describe a slightly different background condition than is directly comparable to soils exposed
after excavation).
As stated previously, the power calculated in Section 2.2 is not guaranteed because the observed
variance may be different from the variance used in the sample size calculations, after additional
samples are collected. If variance increases substantially for either the background samples or the
SWMU samples, the probability of detecting the same true difference in means will be
substantially smaller.
4.0 Conclusions
It is appropriate to collect only five additional samples if the estimated statistical power is
satisfactory. Figure 1 is an example of a valid sampling plan which uses random sampling, while
accommodating for the practicality of avoiding known SWMU locations. It is recommended that
samples be collected from those locations, and then a variety of tests, including the /-test, be
conducted to determine if the sites are similar or different from background in concentrations of
antimony and chromium.
5.0 References
Utah Department of Environmental Quality (DEQ). 2017. RE: SWMU Corrective Action. Letter
to Dyno Nobel Inc., Lehi Site B, UTD009089277. November 14.
25 Apr 2018 12