Nevada Test Site 828 underground nuclear tests were conducted on the Nevada Underground Test Area Test Site from 1951 to 1992. Some of the tests occurred near or below the water table, (UGTA) Sub-Project resulting in groundwater contamination.
Pahute Mesa Earth Vision three-dimensional 5'4! 3UB 0ROJECT STAFF ARE RESPONSIBLE FOR computer model EVALUATING THE IMPACT OF HISTORIC NUCLEAR TESTS ON GROUNDWATER RESOURCES AND STUDYING THE EXTENT OF CONTAMINANT MIGRATION
4HE 5'4! !PPROACH
q /RGANIZED INTO FIVE #ORRECTIVE !CTION 5NITS #!5S q ! #!5 IS A GROUPING OF #ORRECTIVE !CTION 3ITES #!3S BASED ON THE LOCATIONS OF HISTORIC UNDERGROUND NUCLEAR TESTS AND SIMILAR GEOLOGY q %ACH #!5 IS ANALYZED AND EVALUATED q 7ELLS ARE DRILLED TO COLLECT FIELD DATA SAMPLES q &IELD DATA IS USED TO CREATE THREE DIMENSIONAL COMPUTER MODELS q -ODELS ARE USED TO ESTIMATE GROUNDWATER FLOW AND TRANSPORT PARAMETERS q -ODELS ARE THE PREFERRED DECISION TOOLS FOR PREDICTING CURRENT AND FUTURE location of contamination q -ONITORING OF GROUNDWATER IS USED TO EVALUATE MODEL PREDICTIONS AND ENSURE COMPLIANCE WITH REGULATORY REQUIREMENTS
Central Pahute Mesa CAU 9UCCA 5'4! WELL %2 DURING MOBILIZATION ON 9UCCA &LAT &LAT CAU
$/% STAFF WORKS WITH OTHER ORGANIZATIONS IN A COLLABORATIVE Western Pahute APPROACH TO UNDERSTAND THE NATURE AND EXTENT OF GROUNDWATER Mesa CAU contamination:
s ,AWRENCE ,IVERMORE .ATIONAL ,ABORATORY s ,OS !LAMOS .ATIONAL ,ABORATORY &RENCHMAN 2AINIER &LAT s $ESERT 2ESEARCH )NSTITUTE Mesa CAU 3HOSHONE s 5NITED 3TATES 'EOLOGICAL 3URVEY Mountain CAU s 3TATE OF .EVADA s .ATIONAL 3ECURITY 4ECHNOLOGIES s .AVARRO )NTERA
!LL ACTIVITIES ARE CONDUCTED IN ACCORDANCE WITH THE &EDERAL &ACILITY !GREEMENT AND #ONSENT /RDER &&!#/ A LEGALLY BINDING DOCUMENT AGREED TO BY THE 3TATE OF .EVADA THE 53 UGTA Corrective Action Unit (CAU) Boundaries $EPARTMENT OF %NERGY AND THE 53 $EPARTMENT OF $EFENSE
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS !PRIL $/%.6 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site It is a top priority to protect the public from access to ground- Protecting water contaminated by historic the Public Nevada Test Site activities. Protecting the public is best achieved through accurate computer modeling, ongoing monitoring and limiting access.
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1373 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV The Federal Facility Agreement Nevada Test Site and Consent Order (FFACO) is a UGTA Strategy legally-binding agreement between the State of Nevada and the DOE.
Section 3, Appendix VI Federal Facility Agreement and Consent Order
Value of Information Prepare/Revise CAIP NDEP CAIP Review C Analysis A I 1 P No CAIP Approval NDEP Decision
Yes
NDEP Evaluate Existing/ Collect New Develop Revised CAIP Revision NDEP - State of Nevada Division New Data Data CAIP of Environmental Protection NDEP Data Approval Review and Approval Data Completeness NDEP Decision No Auxiliary Data CAU - Corrective Action Unit: Assessment group of sites under investigation. Yes Develop CAU Flow There are five CAUs within the NDEP CAU Model Joint NDEP & Review and Input and Transport Model UGTA Sub-Project. NNSA/NSO Decision
C 2 CAIP - Corrective Action NNSA/NSO 3 A Are the Evaluates Joint NDEP & Investigation Plan: looks at Model Results and Model and Data Is the Strategy Yes I NNSA/NSO Decision No Achievable? existing information from the Data Adequate? Needs weapons testing program, the regional flow model, and Yes No one-dimensional transport simulations to determine the best Peer Review options for site characterization and prioritization. 4 Is the CAU Model Acceptable for CADD/CAP No Propose New Studies? Strategy CAI - Corrective Action NDEP Decision Investigation: uses the information from the CAIP stage Yes to develop CAU-specific models of Negotiate Negotiate Initial CAU with flow and transport, taking the Compliance Boundary uncertainty of each specific NDEP hydrogeologic setting into NDEP Review of Prepare/Revise CADD/CAP account. These models are then CADD/CAP
used to forecast contaminant Develop New boundaries for 1,000 years. Strategy C 5 A CADD/CAP Approval No CADD/CAP - Corrective Action NDEP Decision D Decision Document/Corrective Monitoring/Model D Yes Refinements Execute New Action Plan: includes developing Strategy Implement CAP and negotiating an initial C compliance boundary, developing A Start or Continue Monitoring monitoring programs for model P testing and closure, and 6 identifying institutional controls. Is CAU Model and Monitoring No Acceptable for Closure? CR - Closure Report: involves NDEP Decision negotiating the final compliance Yes boundary for CAU closure; developing a closure report, which Negotiate CAU Closure must be approved by NDEP; and Compliance Boundary developing and initiating a NDEP Prepare/Revise CR Closure Report long-term closure monitoring Review program. 7 No CR Approval NDEP Decision C R Yes
Start Long-Term Closure Monitoring
Transition to Long-Term Stewardship
Continue Monitoring Program
NDEP/Stewardship Periodic Evaluations Review Yes 8 Is the Corrective Feasibility of Yes Action No No Decision Working? Monitoring/Model Refinements Source: Modified from Appendix VI, Revision No. 2, NDEP Decision of the FFACO, 1996 (amended 2010)
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s OF 0UBLIC !FFAIRS April 2010, DOE/NV-1383 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site Geology at the Complex Geology Nevada Test Site is diverse and complex.
0AHUTE -ESA 'EOLOGIC -ODEL 4HE COMPLEXITY OF THE SUB SURFACE GEOLOGY CREATES TECHNICAL CHALLENGES FOR SCIENTISTS TO ACCURATELY DETERMINE WHERE AND HOW FAST GROUNDWATER AND CONTAMINANTS MIGRATE 4HE 5NDERGROUND 4EST !REA 3UB 0ROJECT WORKS Each color EXTENSIVELY TO CHARACTERIZE THE GEOLOGY AND represents rocks REPRESENT THE UNCERTAINTY OF CONTAMINANT with distinct MIGRATION 4HE GEOLOGIC MODELS PROVIDE hydrogeologic THE INITIAL FRAMEWORK FOR ALL GROUNDWATER MODELING properties.
'EOLOGIC #ROSS 3ECTION AT 0AHUTE -ESA
Timber Mountain caldera complex Area 20 caldera (topographic [i.e. moat] area) (topographic area) Timber Mountain caldera complex Area 20 caldera (structural area) (structural area) 4HE COMPLEX GEOLOGIC FEATURES OF 0AHUTE -ESA INCLUDE The Bench Southwest Northeast U-20y Well ER-20-10 A Gravity-inferred basement ridge (projected; 244 m [800 ft] A’ Well ER-20-7 Well Cluster east of A-A’) ER-20-5 U-20c U-20ao 7,000 Well ER-EC-6 Well ER-EC-11 2,000 Proposed Tma Tt Tt Proposed Well ER-EC-15 Well ER-EC-13 QTa Tt Tma 6,000 Tt Tma Tmr Tma Tma Tmr Tmrf Tmr Well ER-EC-2A QTc Qay Tmrf s !T LEAST SIX 4ERTIARY AGE CALDERAS Qay Qai 1,600 Qay Tmrf TtpTt Tpb Tmrh 5,000 QTa Qai Tmat Tpb(b) Tpb Tmat Tpcy Tt Tt Tf Tpb(b) Tpc Tpcy Tpc Tf Tf Tmrf Tmatx Tp(b) Tfbw Tfbw Tpc Tfbw Tp(b) Tmr Tpt 4,000 Tpc Elevation (feet) 1,200 Tpt Tpt Tf Magnetically-inferred TMCC Tpb Tmrf collapse Th(b) Th(b) Tpt near-surface lava ? ? ? Tp(b) M3 fault collar Th 3,000 Tf Tf ? Tpc Tpb Th Th ? ? Th(b) 800 ?? Tp(b) Th(b) Tp(b) ER-20-5 TD s "ASIN AND RANGE NORMAL FAULTS Tpt Tpc Tci Tf Th 2,000 Th Tp(b) Tci BENHAM Th Tpt cavity Elevation (meters) 400 Tcpe Tc Tc Tc 1,000 Th Th Tmaw Tcpk Tmaw Tbg Tci Well ER-EC-2A TD Tcb Sea Level Sea Level Area 20 caldera Tcb Tc Tma To collapse collar Tc TMCC s -ESOZOIC AGE THRUST FAULTS Tma Tma structural -1,000 Tcb Tmax margin Area 20 caldera NTMMSZ -400 structural margin Tcb Tmax Pz -2,000 Source: NSTec, 2009
Stratigraphic Units Lithologic Units NTMMSZ = Northern Timber Mountain moat structural zone Qay Young alluvial deposits Tma Ammonia Tanks Tuff Tp Paintbrush Group Tcpe Rhyolite of ER-EC-1 Welded ash-flow tuff Predicted water table s 'RANITE BODIES INTRUDED THROUGH A BASEMENT OF Scale TMCC = Timber Mountain caldera complex* QTc Colluvium Tmax Debris-flow breccia associated with Tpb Rhyolite of Benham Tcpk Rhyolite of Kearsarge Stratigraphic contact Qai Intermediate alluival deposits the TMCC collapse collar Tpcy Tuff of Pinyon Pass Tcb Bullfrog Tuff Rhyolitic lava 0 1,000 2,000 feet TD = total depth QTa Old alluival deposits Tmat Rhyolite of Tannenbaum Hill Tpc Tiva Canyon Tuff Tcbx Debris-flow breccia associated with Lithologic contact Tt Thirsty Canyon Group Tmatx Debris-flow breccia associated with Tp/Th(?) Paintbrush/Calico Hills Tuff the Area 20 caldera collapse collar Debris-flow breccia 0 400 800 meters No vertical exaggeration Tf Volcanics of Fortymile Canyon the NTMMSZ fault scarp (tentative) Tbg Grouse Canyon Tuff Nonwelded and bedded tuff, Fault with arrow showing sense of offset * The TMCC is composed of the Rainier Mesa and Tfb Beatty Wash Formation Tmr Rainier Mesa Tuff Tpt Topopah Spring Tuff To Pre-Grouse Canyon caldera units alluvium, and colluvium (offset less than 30 meters [100 feet] not depicted) younger Ammonia Tanks calderas that are interpreted Tfbw Rhyolite of Beatty Wash Tmrf Rhyolite of Fluorspar Canyon Th Calico Hills Formation Pz Paleozoic sedimentary rocks Carbonate to have a common structural margin in the area of the Tmaw Tuff of Buttonhook Wash Tmrh Tuff of Holmes Road Tc Crater Flat Group cross section. HIGHLY DEFORMED SEDIMENTARY ROCKS Tci Rhyolite of Inlet
January 12, 2010
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1372 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site Wells are drilled to collect geologic and aquifer data, Groundwater Well which is used in computer models to predict groundwater movement Drilling and contaminant boundaries.
• Four wells drilled during 2009 - well 2009 Well Drilling Summary 2010-2011 Well ER-EC-11 is the first location off the Drilling Plans MAIN HOLE PLANNED ACTUAL CONSTRUCTION DAYS PLANNED DELTA TARGET WELL NUMBER DEPTH DEPTH WELL NUMBER DEPTH Nevada Test Site to have tritium detected (feet) ZONES (feet) (feet) PLANNED ACTUAL DELTA (feet)
in groundwater samples ER-20-7 2,600 2,936 336 22 29 7 ER-EC-12 3,650 3
Well ER-EC-11 During Drilling ER-20-8 3,700 3,442 (258) 31 34 3 ER-20-4 3,100 1
ER-20-8 #2 2,400 2,338 (62) 14 11 (3) ER-EC-13 3,000 2
ER-EC-11 3,500 4,148 648 29 39 10 ER-EC-15 3,200 3
FY 2009 Drilling FY 2010 Drilling Campaign 12,200 12,864 664 96 113 17 Campaign 12,950 TOTALS TOTALS
Lined Sump at ER-EC-11 to Hold Up to Four Million Gallons of Water During Well Drilling & Pumping Activities
• First well drilled was ER-20-7, which is the site recommended by the Community Advisory Board (CAB) for Nevada Test Site Programs • Well depths range from 2,338 feet to 4,148 feet • Four more wells are planned during 2010 - Well ER-EC-11 Well Head with Four Monitoring Tubes and One 2011 drilling campaign beginning in June Production Casing
For more information about the Environmental Management program, contact: U.S. Department of Energy • National Nuclear Security Administration Nevada Site Office • Office of Public Affairs P.O. Box 98518, Las Vegas, NV 89193-8518 • (702) 295-3521 • [email protected] • www.energy.doe.gov Nevada Test Site During well development, characterization wells are pumped to remove drilling fluids and Well Development, Hydraulic particulates. Hydraulic testing and sampling are then performed to collect aquifer data for use in Testing and Groundwater computer models to predict groundwater Sampling on Pahute Mesa movement and contaminant boundaries. s 0AHUTE -ESA WELL DEVELOPMENT AND TESTING COMPLETED AT 7ELL %2 s .INE WELLS ARE TO BE DEVELOPED TESTED AND SAMPLED OVER THE NEXT FOUR YEARS s 7ELLS TO BE COMPLETED IN MULTIPLE TARGET AQUIFERS AT DEPTHS FROM TO FT s 7ELL DESIGNS ALLOW FOR ISOLATION OF AQUIFERS AND DISCRETE ACCESS FOR THE COLLECTION OF AQUIFER SPECIFIC DATA EG WATER LEVELS AND GROUNDWATER SAMPLES s $URING PUMP TESTING WATER LEVELS AT NEARBY WELLS ARE MONITORED TO CHECK AQUIFER SPECIFIC WATER LEVEL RESPONSES FROM PUMPING
520000 532000 544000 556000 568000 EXPLANATION
!( Proposed Phase II well
#! # ! ! ! #### # Existing Phase II well # !# #! # Silent Area Canyon 20 ! # Other drill hole/well 4132000 ! # Black Mountain #!Caldera!# Complex #! Below-ground nuclear test # #! ! Caldera ! ! conducted on Pahute Mesa Caldera #! ! ! #! ! ! # !## 6284000 Black ! ! #! #! ! Pahute Mesa #! ! Phase I drill hole ! ! ! ! Mountain # ! ! #! !! 20 # #! #!! 19 Water level observation well ! !# ! # ! !# Nevada ! ! ! # ! ! !! # ! # Caldera structural margin (buried) Test and Training ! ! ER-20-6 #1,2,3 !#! # #! #! ! #!! #! ! ! A’ ! # ! Range ! #! # ! ! Nevada Test and Training Range ER-20-10 # !# !# ! ! ! !( !! ! # ER-20-1 ! ! ##! PM-OV Hydrostratigraphic Model Area ! !! ! 4120000 ER-20-5 #3 ER-20-2 #1 ! ER-20-7 ! ER-EC-1 12 NTS Boundary ! ER-EC-11 ER-20-8 ER-20-4 Rainier! ! ! !( ER-EC-15 ER-EC-6 !!ER-20-8#2 Mesa NTS Operational Areas !( ! ! ER-20-9 ER-19 1 ER-EC-12!( !
ER-EC-13 !( 6270000 Highway (U.S. and State) !( # Thirsty ER-EC-4 AA’ ! # Cross section line (Drilling Criteria Plate 3 updated) Mountain ER-EC-2A ! ER-EC-14 Redrock !( Redrock A !( Nye County ER-EC-16 # B uckboa # Valley Caldera Caldera 17 r 18
4108000 dMes ER-EC-8 1 ! ER-18-2 ! a ER-OV-06aER-OV-01 ER-EC-5 !!! ! ER-OV-06a2 ! Beatty Timber ! Lincoln County ER-EC-3A !( Mountain Clark County ER-30-1 CALIFORNIA ER-OV-05 ! Indian Springs ! 6256000 NEVADA ! ER-OV-02 Timber Mountain Caldera Complex «¬95 ! ER-OV-03b !# 16 30 Oasis Valley Pahrump Las Vegas n ! ! ER-OV-03a2&3ER-OV-03a o 4096000 ER-OV-03c2ER-OV-03c y !! !! n a ER-EC-7 ! C ´ e l Bureau of i Land Management m 40482 mi y ER-OV-04a Claim Canyon t and private lands ! r 29
o Caldera # F 14 4048m2 k Bare
Crater Flat 6242000 Blue tick marks are in Nevada State Plane Central Zone, NAD83, meters Beatty Mountain Black tick marks are in Univeral Transverse Mercator, NAD27, Zone 11, meters ¬ «¬374 25
4084000 486000 500000 514000 528000 542000
Timber Mountain caldera complex Area 20 caldera (topographic [i.e. moat] area) (topographic area) Timber Mountain caldera complex Area 20 caldera (structural area) (structural area)
The Bench Southwest Northeast U-20y Well ER-20-10 A Gravity-inferred basement ridge (projected; 244 m [800 ft] A’ Well ER-20-7 Well Cluster east of A-A’) ER-20-5 U-20c U-20ao 7,000 Well ER-EC-6 Well ER-EC-11 2,000 Proposed Tma Tt Tt Proposed Well ER-EC-15 Well ER-EC-13 QTa Tt Tma 6,000 Tt Tma Tmr Tma Tma Tmr Tmrf Tmr Well ER-EC-2A QTc Qay Tmrf Qay Qai 1,600 Qay Tmrf TtpTt Tpb Tmrh 5,000 QTa Qai Tmat Tpb(b) Tpb Tmat Tpcy Tt Tt Tf Tpb(b) Tpc Tpcy Tpc Tf Tf Tmrf Tmatx Tp(b) Tfbw Tfbw Tpc Tfbw Tp(b) Tmr Tpt 4,000 Tpc Elevation (feet) 1,200 Tpt Tpt Tf Magnetically-inferred TMCC Tpb Tmrf collapse Th(b) Th(b) Tpt near-surface lava ? ? ? Tp(b) M3 fault collar Th 3,000 Tf Tf ? Tpc Tpb Th Th ? ? Th(b) 800 ?? Tp(b) Th(b) Tp(b) ER-20-5 TD Tpt Tpc Tci Tf Th 2,000 Tp(b) BENHAM Above: Workers install Th Tci Th Tpt cavity Elevation (meters) 400 Tcpe Tc Tc Tc 1,000 Th Th Tmaw Tcpk Tmaw Tbg Tci Well ER-EC-2A TD Tcb Sea Level Sea Level Area 20 caldera Tcb Tc Tma To collapse collar Tc pump at a well. Tma TMCC Tma Tma structural -1,000 Tcb Tmax margin Area 20 caldera NTMMSZ -400 structural margin Tcb Tmax Pz -2,000 Source: NSTec, 2009 Left: Typical fluid storage Stratigraphic Units Lithologic Units NTMMSZ = Northern Timber Mountain moat structural zone Qay Young alluvial deposits Tma Ammonia Tanks Tuff Tp Paintbrush Group Tcpe Rhyolite of ER-EC-1 Welded ash-flow tuff Predicted water table QTc Colluvium Tmax Debris-flow breccia associated with Tpb Rhyolite of Benham Tcpk Rhyolite of Kearsarge Scale TMCC = Timber Mountain caldera complex* Stratigraphic contact Qai Intermediate alluival deposits the TMCC collapse collar Tpcy Tuff of Pinyon Pass Tcb Bullfrog Tuff Rhyolitic lava 0 1,000 2,000 feet TD = total depth QTa Old alluival deposits Tmat Rhyolite of Tannenbaum Hill Tpc Tiva Canyon Tuff Tcbx Debris-flow breccia associated with Lithologic contact Tt Thirsty Canyon Group Tmatx Debris-flow breccia associated with Tp/Th(?) Paintbrush/Calico Hills Tuff the Area 20 caldera collapse collar Debris-flow breccia 0 400 800 meters sump near well. No vertical exaggeration Tf Volcanics of Fortymile Canyon the NTMMSZ fault scarp (tentative) Tbg Grouse Canyon Tuff Nonwelded and bedded tuff, Fault with arrow showing sense of offset * The TMCC is composed of the Rainier Mesa and Tfb Beatty Wash Formation Tmr Rainier Mesa Tuff Tpt Topopah Spring Tuff To Pre-Grouse Canyon caldera units alluvium, and colluvium (offset less than 30 meters [100 feet] not depicted) younger Ammonia Tanks calderas that are interpreted Tfbw Rhyolite of Beatty Wash Tmrf Rhyolite of Fluorspar Canyon Th Calico Hills Formation Pz Paleozoic sedimentary rocks Carbonate to have a common structural margin in the area of the Tmaw Tuff of Buttonhook Wash Tmrh Tuff of Holmes Road Tc Crater Flat Group cross section. Tci Rhyolite of Inlet
Plate 3 Cross Section Lineh January 12, 2010 Southwest-Northeast Geologic Cross Section through the Phase II Pahute Mesa-Oasis Valley Investigation Area (Modified after ER-20-7 and ER-EC-11) 01/12/2010
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1376 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV
Nevada Test Site "Source term" models predict the amount and type of Information on Source contaminants that will be found Term from New Wells in the groundwater in the future.
Data acquired from 2009 drilling activities supports conceptual model: contamination moves off Pahute Mesa in deeper geographic units to stratigraphically higher geographic units as caldera structure down drops the volcanics to the south. The Benham aquifer is hypothesized to be the main aquifer of concern at the leading edge of the contaminant plume.
C C’ Southwest ER-20-7 Northeast Bend in Section U-20y The Bench (projected; 244 m [800 ft] Well ER-20-7 Well Cluster east of A-A’) C C’ TD = 894.9 m (2,936 ft) U-20c ER-20-5 7,000 Southwest ER-20-8 Northeast 2,000 ER-EC-6 Well ER-EC-11 Well ER-20-8 6,000 Pahute Mesa Investigation Area TD = 1,049.1 m (3,442 ft) 7,000 TCVA PVTA TMA Well ER-20-8#2 530000 540000 550000 560000 570000 2,000 Proposed TCVA PVTA 508000 512000 516000 520000 TD = 712.6 m (2,338 ft) TMA 1,600 Well ER-EC-12 TmatTmTmatmatt TmatTmatma BA BA 5,000 U-20av 6,000 THLFA UPCU ! TCVA UPCU U-20c ! U-20az ! ER-20-10 U-20ax UE-20av TCVA THCM TCA ! ! ! THLFA PVTA LPCU LPCU TCA ! 1,600 THLFA 1,200 4,000 THCM 5,000 TSA U-20be BA TSA U-20ag ! THCM
Elevation (ft) UPCU FCCU ! TMA ER-20-1 THCM FCCU TCA Elevation (ft) UPCUCU ! U-20y U-20as BA 900000 ER-20-5 #3! FCCU 3,000 ! ! 1,200 LPCU 4,000 CHZCM !ER-20-5 #1 BA UPCU TSA 800 BA SPA LPCU CHZCM SPA IA ER-20-7 MPCU
Elevation (m) 2,000 TCA CHZCM ! TCA 3,000
TCA Elevation (m) U-20cU-20c 800 LPCU TSA TSA CFCM TD LPCU 400 IA '30"N IA ER-EC-1 12 CHZCM ! TSA 1,000 37° NAME?? CFCM 4118000 X CHZCM 2,000 O. IA CFCM CFCM 400
NTMMSZ Sea Level BFCU Sea Level 6272000 ER-EC-11 CFCM 1,000 ER-EC-6ER-EC-6 TD ! BFCU ER-20-4 ! BRA Area 20 caldera ER-20-8#2 ER-20-8 BFCU 890000 PBRCM collapse collar BFCU NTMMSZNTMMSZ ! -1,000 Sea Level Sea Level -400 ER-EC-6 ER-EC-15 ! ! • Located within modeled flow paths; downgradient • Located within modeled flow paths ER-20-9 ! ER-EC-12 ! • Three saturated aquifers of the ER-20-5 site; contamination expected ER-EC-13
! 4114000 880000
37°10'0"N • BA - tritium (40,000-100,000 pCi/L) in drilling fluids • Two saturated aquifers 6268000 • TCA - tritium (3,000,000 pCi/L) and Pu (0.04 pCi/L) in in isolated zone; BA cased off drilling fluids; cased off • TCA - tritium (<20,000 pCi/L); slotted completion 538000 542000 546000 550000 116°35'0"W 116°32'30"W 116°30'0"W 116°27'30"W 116°25'0"W Southwestern Pahute Mesa ! Proposed Phase II drill hole Black tick marks are in Nevada State Plane, Central Zone, NAD83, meters • TSA - tritium (20,000,000 pCi/L) and Pu (0.12 pCi/L) in Green tick marks are in Nevada State Plane, Central Zone, NAD27, feet zone over entire interval The Bench ! Existing Phase II drill hole Blue tick marks are in Universal Transverse Mercator, NAD83, meters Red tick marks are in Latitude and Longitude, NAD83 Northwestern Timber ! Existing drill hole Mountain moat 1,000005 0 1,000 2,000 m • TSA - tritium (<20,000 pCi/L); slotted completion drilling fluids; slotted completion zone over entire interval Fault for structural zone NTS Boundary dashed where buried for inferred (bar and ball on downthrown side) NTS Operational Areas 4,000000,2 0 4,000 8,000f t ¬ Caldera structural margin (buried) zone over entire interval (From Warren et al. [2000] and BN [2002]) • ER-20-8#2 subsequently drilled and completed with slotted zone in BA
C C’ Southwest Northeast ER-EC-11 the Bench Well Cluster Well ER-20-7 ER-20-5 7,000 2,000 Well ER-EC-11 Well ER-EC-6 TD = 2,264.3 m (4,148 ft) • Located within modeled flow paths, across the Nevada Test Site 6,000
1,600 boundary 5,000 • Three saturated aquifers Elevation (ft) 1,200 4,000 • BA - tritium (~10,000 pCi/L) in drilling fluids; BA cased off 3,000 LEGEND Elevation (m) 800 • TCA - tritium not detected; slotted completion zone over entire interval pCi/L - picoCuries per liter 2,000 • TSA - tritium not detected; slotted completion zone over entire interval 400 BA - Benham aquifer CHZCMCHZCM 1,000 TCA - Tiva Canyon aquifer BFCUBFCU BFCUBFCU Sea Level Sea Level TSA - Topopah Spring aquifer
For more information about the Environmental Management program, contact: U.S. Department of Energy • National Nuclear Security Administration Nevada Site Office • Office of Public Affairs April 2010, DOE/NV-1380 P.O. Box 98518, Las Vegas, NV 89193-8518 • (702) 295-3521 • [email protected] • www.nv.energy.gov Nevada Test Site Computer modeling depicts the Nevada Test Site Pahute Mesa Modeling Pahute Mesa groundwater to flow from north-northeast to Groundwater Flow south-southwest with a discharge point along Oasis Valley.
Computer models are a three-dimensional, mathematical representation of the important physical features within the flow system.
s 4HE FLOW MODELS HAVE Pahute Mesa groundwater flow computer models were created from been calibrated to information obtained through well drilling, sampling, geophysical data approximate observed collection, and research. Complex geologic alternatives are included water levels in wells and in the models to account for uncertainties within the Nevada Test Site discharge in springs. setting. s 4HE FLOW MODELS ALSO Flow Model AlternativeAlternatives Description demonstrate the Raises the basement surface to highest plausible to focus PZUPRaised – Raised Paleozoic Paleozoic flow in higher rocks. approximate natural TCLThirsty – Thirsty Canyon Canyon Treats ThirstyTreats Canyon TCL Lineament as a continuous as a continuous feature. feature. chemical constituents LineamentLineament
Considers Belted Range thrust to be more extensive IN GROUNDWATER SUCH DRTDeep – Deep Rooted Rooted Thrust Thrust resulting in a low permeability thrust sheet over most of AS CHLORIDE AND SULFATE the model. and how they change Aquifer units are truncated against older lower permeability RIDGEGravity – Gravity Ridge Ridge rocksrocks presumed presumed to to cause resist or a geophysical hinder flow off anomaly Pahute along along flow paths. important flowMesa. path off Pahute Mesa.
Changes Paleozoic carbonates into continuous sheet in SEPZSoutheast – Southeast Paleozoic Paleozoic southeastern area.
Structurally uncoupled from basin and range faults. SCCCSilent – Silent Canyon Canyon Caldera Caldera Circular caldera ring faults and collapse features. ComplexComplex Faults do not extend to much depth.
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1378 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site Estimating how quickly and how far potential Modeling the contamination may move beyond Nevada Test Site Movement of boundaries is essential to implementing the appropriate Contamination protective measures.
The contaminant transport model simulates the movement of a variety of radiological contaminants through the groundwater, and predicts where contaminants will be found.
• Rate and distance parameters are applied to the flow Safe Drinking model to predict how contaminants are transported Water Act over time. maximum contaminant • The transport model is developed using experimental level for tritium results from laboratory and field tests of contaminant Probability that is 20,000 pCi/L. the maximum movement in aquifer material. contaminant level will be • Most well sampling results have not detected the presence of exceeded in radionuclides, thereby posing challenges when comparing against year 2015, based on the predictions. preliminary transport model. • Preliminary estimate of exceeding the maximum contaminant level 50 years after contamination occurred is depicted in the map to the right (red is more probable and blue is less probable).
• Continued well drilling and data collection will improve and refine the transport models.
For more information about the Environmental Management program, contact: U.S. Department of Energy • National Nuclear Security Administration Nevada Site Office • Office of Public Affairs April 2010, DOE/NV-1381 P.O. Box 98518, Las Vegas, NV 89193-8518 • (702) 295-3521 • [email protected] • www.nv.energy.gov Nevada Test Site Monitoring is a key element of the Frenchman Flat Groundwater UGTA strategy, along with modeling Monitoring Network Design and institutional controls.
Monitoring Stages Frenchman Flat Current Monitoring Frenchman Flat Pre-Closure Monitoring There is current groundwater monitoring and two Monitoring of groundwater in ten wells in Frenchman Pre-closure monitoring seeks to provide new data, not used in the planned monitoring stages identified in the Flat is ongoing as part of the Nevada Test Site Routine modeling effort, to build confidence in the model forecasts. Types of data Underground Test Area (UGTA) Sub-Project Strategy: Radiological Environmental Monitoring Plan (RREMP). include the presence or absence of contamination, groundwater levels, Some of these wells may become part of the long-term types of rocks encountered below the watertable, and aquifer properties. Current Monitoring: established during nuclear monitoring networks. testing and continuing today.
Pre-Closure Monitoring: a model evaluation stage to check model forecasts after the State of Nevada and DOE accept the Frenchman Flat model.
Long-term Closure Monitoring: occurs long-term, after investigations have ended.
Objectives for groundwater monitoring Each monitoring stage emphasizes different objectives, The map above shows the south-east corner of the Nevada Test Site, including the northern though there is overlap. In all cases the overall goal is testing area in Frenchman Flat (gray box on protection of the public and environment. Specific map to left shows the location), and composite objectives focus on: 1,000-year contaminant boundaries calculated using models.
s Safety of existing water supply wells (Current The white circles show the general locations Monitoring) proposed for the pre-closure monitoring wells. Information from these wells will be used to evaluate model forecasts and assess their s Data collection for evaluating model forecast reliability. (Pre-Closure Monitoring) After that assessment, there may be an iterative process of model improvement. Once the model The map shows the well locations for the RREMP in 2008 and can s -onitoring for regulatory compliance and early and monitoring are acceptable for closure, a be found in the Nevada Test Site Environmental Summary Report. detection of contamination (Long-Term Monitoring) long-term monitoring network will be developed.
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1384 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site To date, monitoring Community Environmental station results show that tritium levels are at or Monitoring Program below background. (CEMP)
4HE #%-0 SAMPLES THE WATER SUPPLY YEARLY AT EACH COMMUNITY CEMP monitoring test HOSTING A #%-0 STATION TO TEST FOR THE PRESENCE OF MAN MADE results are available at RADIOACTIVITY #%-0 ANALYZES THE SAMPLES FOR TRITIUM BECAUSE www.cemp.dri.edu IT IS THE MOST COMMON RADIOACTIVE CONTAMINANT AT THE .EVADA 4EST 3ITE AND IT MOVES MOST RAPIDLY IN GROUNDWATER s #%-0S NETWORK OF MONITORING STATIONS USE INSTRUMENTS TO DETECT AIRBORNE RADIATION IF PRESENT AND RECORD WEATHER DATA 4HIS
INFORMATION IS AVAILABLE REAL TIME ON THE #%-0 Tritium Results from CEMP offsite water tests (3H - pCi/L)
Location 2009 2008‡ 2007 2006 2005 2004 2003 2002 2001 WEB SITE AT WWWCEMPDRIEDU Adaven Springs* 12.4 10.7 9.7 22.6 20 12 16 15 NT Alamo^ 0.4 0.8 -6.4 -9.7 -4 -3 -1 2 7 Amargosa Valley^ -0.1 0.0 6.4 -6.4 -3 -2 3 0.1 3 Beatty^ 0.1 -0.2 3.2 -12.9 -3 -2 0 2 3 Boulder City* 21.6 24.1 19.3 35.4 24 29 35 27 34 Caliente^ 4.7 5.4 3.2 -3.2 8 7 5 8 12 s 0RIVATE CITIZENS OPERATE #%-0 MONITORING Cedar City^ -0.1 0.2 6.4 0.0 3 -4 -4 -3 1 Delta^ -0.1 -0.1 3.2 6.4 -8 2 -1 -0.8 1 Duckwater^ 0.1 0.3 6.4 NT NT NT NT NT NT Ely* 2.7 2.8 16.1 9.7 -2 NT NT NT NT STATIONS IN .EVADA 5TAH AND #ALIFORNIA Goldfield^ 0.0 0.4 3.2 -9.7 0 -4 5 -0.3 <1 Henderson* 22.4 23.2 32.2 16.1 24 27 27 26 34 Indian Springs^ -0.3 0.1 3.2 9.7 -5 -1 4 5 2 COMMUNITIES AND RANCHES THAT ARE NEAR Las Vegas^ 0.8 0.8 12.9 3.2 -5 3 -2 1 <1 Medlin's Ranch* 3.8 5.1 3.2 0.0 10 9 9 4 13 Mesquite^ -0.1 0.0 0.0 0.0 NT NT NT NT NT THE .EVADA 4EST 3ITE Milford^ 0.0 -0.3 0.0 12.9 1 -5 -2 -1 <1 Nyala Ranch^ 0.5 0.5 -3.2 9.7 0 -1 -4 -1 NT Overton^ 0.1 -0.1 12.9 6.4 -4 3 2 0.4 1 Pahrump^ 0.1 0.1 0.0 3.2 -5 -1 2 -2.0 1 Pioche^ -0.1 0.1 0.0 6.4 -7 2 -1 4 <1 Rachel^ -0.1 -0.2 -6.4 3.2 -1 -1 -9 1 <1 Sarcobatus Flats^ 0.3 0.1 19.3 -3.2 -3 3 -7 -4 NT s $ESERT 2ESEARCH )NSTITUTE ADMINISTERS THE #%-0 Stone Cabin 0.5 0.8 -6.4 0.0 2 -2 3 2 NT Ranch* St. George* 9.3 9.4 22.6 9.7 8 -3 4 8 9 Tecopa^ 0.4 -0.2 NT NT NT NT NT NT NT Tonopah^ -0.3 -0.1 9.7 -3.2 -4 -2 4 -2 <1 Twin Springs^ 0.0 -0.1 -9.7 3.2 -2 -3 -1 0.7 NT * Sample taken from spring or surface water. ^ Sample taken from well water. ‡ In 2008, s #%-0 IS FUNDED BY THE 53 $EPARTMENT OF analyses began to be conducted using enriched gas proportional counting. Prior to that year gas proportional or liquid scintillation counting was used. Thesafedrinking water standard for tritium allows 20,000 pCi/L. Source: Nevada Test Site Environmental Reports %NERGY .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION MDA 2001-2005= 21 pCi/L (enriched liquid scintillation counting) MDA 2006, 2007= 24 pCi/L, 26.5 pCi/L respectively (gas proportional counting). Some 2007 results were anomalously high and not repeated in subsequent samples. MDA 2008-2009= 1.0 pCi/L (enriched gas proportional counting) .EVADA 3ITE /FFICE NT=Not Tested
&OR MORE INFORMATION ABOUT THE %NVIRONMENTAL -ANAGEMENT PROGRAM CONTACT 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1377 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site RREMP monitors a Routine Radiological comprehensive network of wells, Environmental Monitoring springs and surface Program (RREMP) water locations.
RREMP monitoring results are updated annually in the Nevada Test Site Environmental Report. s 7ELLS AND SPRINGS ON THE .EVADA 4EST 3ITE This report is available at ARE SAMPLED TO HELP IDENTIFY THE LOCATION www.nv.energy.gov/library/publications/aser.aspx OF GROUNDWATER CONTAMINATION
s )N AREAS WHERE GROUNDWATER CONTAMINATION HAS BEEN LOCATED ON THE .EVADA 4EST 3ITE WELLS AND SPRINGS ARE MONITORED OVER TIME TO DETERMINE IF THE LEVELS OF RADIOACTIVITY ARE CHANGING
Average Tritium Concentration (pCi/L) Location 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 Non-Potable NNSA/NSO Wells Ash-B Piezometer #1 3.0 - - - 16.8 - - -7.0 - 16.4 -3.0 s 'ROUNDWATER WELLS AND SPRINGS NEAR THE Ash-B Piezometer #2 7.4 - - - 7.4 - - -8.8 - -6.3 8.4 ER-OV-01 -0.2 -3.7 -3.8 10.9 5.2 - 18.3 -3.5 -13.4 -2.4 7.6 ER-OV-02 -1.8 2.0 2.1 8.8 5.7 -5.9 6.7 -1.9 -8.1 -5.8 -5.6 ER-OV-03A -4.6 9.1 -6.1 8.1 24.1 -6.9 1.0 -4.4 -8.7 -6.2 -7.7 ER-OV-03A3 0.0 3.3 -11.0 12.4 15.6 -9.0 - 0.0 4.1 -5.6 3.0 .EVADA 4EST 3ITE ARE MONITORED TO DETERMINE ER-OV-03C 1.4 -10.5 -5.9 20.7 9.9 -7.2 12.3 -0.7 -13.1 -4.6 9.3 ER-OV-03C2 -0.6 -3.0 -12.8 16.7 13.9 7.8 20.8 2.2 -10.5 -6.5 1.1 ER-OV-04A 3.2 -8.4 -4.3 23.2 3.3 -10.9 20.1 0.2 -6.8 -6.0 -2.3 ER-OV-05 3.3 4.2 -12.9 9.6 9.0 -4.8 -8.5 4.2 -1.2 -9.8 4.9 IF ANY RADIOACTIVITY HAS MIGRATED OFF THE ER-OV-06A 1.4 -10.7 -11.5 10.6 8.7 - 4.3 3.9 -11.9 -4.1 -5.1 PM-3 (1560 ft bgs) 23.8 21.9 16.0 29.0 9.3 18.8 -9.5 3.4 -3.6 0.5 - Sampling results PM-3 (1993 ft bgs) 4.7 8.5 15.8 3.5 10.1 - -4.9 -1.0 -17.1 -4.7 - Offsite Private/Community Drinking Water Wells Amargosa Valley RV Park 6.1 - - - 1.3 - -10.4 - 4.4 1.4 3.7 SITE INTO THE PUBLIC DOMAIN from RREMP sites Barn Well #2 - Ponderosa Dairy 20.1 - - - 3.5 - - - - 19.3 - Beatty Water and Sewer (a) - - - 11.6 5.0 6.0 29.9 0.7 -8.9 6.8 2.3 located off the Cind-R-Lite Mine -9.0 - - - 0.1 - 9.4 - -6.6 -1.6 1.2 Cook's Ranch Well #2 -6.0 - - - 6.5 - -20.1 - -0.4 9.5 0.4 Crystal Trailer Park (b) -3.8 - - - -8.4 11.2 -10.9 - -13.9 -9.7 - Nevada Test Site DeLee Ranch -4.0 - - - 3.3 - -13.2 - -6.0 3.8 4.1 EW-4 Well (b) -0.8------Fire Hall #2 Well 3.0 - - - -2.7 - 8.3 - -11.8 -7.9 1.4 (1999 - 2009). Fuller Property (b) -6.9 - - 11.1 -5.4 ------s #ONTAMINATION RESULTING FROM HISTORIC Last Trail Ranch 1.5 - - - 2.1 - - - 0.0 -7.0 2.9 Longstreet Casino Well #1 -3.0 - - - 0.4 - -16.1 - -0.5 - 3.8 Roger Bright Ranch -3.7 - -16.8 14.1 -7.9 8.9 -7.9 14.8 -1.0 -4.7 -0.5 School Well 4.0 - -1.0 19.9 4.5 3.0 -13.9 7.4 -6.3 -7.0 3.9 Tolicha Peak -1.2 - -6.2 9.3 -1.0 9.5 7.1 -10.3 -0.6 4.7 14.3 UNDERGROUND NUCLEAR TESTING HAS NOT BEEN U.S. Ecology -10.2 - 2.1 12.9 4.6 11.2 10.0 37.4 -6.2 0.0 1.3 Offsite Springs/Surface Waters Barn Spring (b) --6.8------Big Springs -5.1 - - 18.7 - - -4.7 -9.6 -2.0 -7.5 - DETECTED AT A 22%-0 WATER SAMPLING Crystal Pool -10.7 - - 13.9 - - -2.3 -12.8 -3.0 -4.7 - Fairbanks Spring -0.7 - - 14.0 - - 0.8 -8.1 4.0 -4.9 - Longstreet Spring -11.6 - - 13.4 - - 15.4 -15.2 -1.0 -3.6 - Peacock Ranch 0.9 - -2.9 24.9 -1.1 - - -7.9 -4.0 -1.0 - Revert Spring -1.3 - -4.5 15.4 0.6 -1.1 -5.4 -9.5 -2.3 -2.1 - LOCATION OFF THE .EVADA 4EST 3ITE Spicer Ranch -7.1 - -6.9 22.2 10.6 6.7 -7.3 -26.7 -4.4 4.6 -
- Not sampled (a) Site is no longer monitored (b) Site monitored at NNSA/NSO request, no set schedule
&OR MORE INFORMATION ABOUT THE %NVIRONMENTAL -ANAGEMENT PROGRAM CONTACT 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1382 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site Radiation occurs naturally Radiation Facts in the environment.
!VERAGE !NNUAL 2ADIATION 3OURCE AND $OSE
Medical Cosmic 300 mrem 30 mrem Rem MEASURES THE BIOLOGICAL DAMAGE OR hDOSEv OF RADIATION ! millirem MREM IS ONE ONE THOUSANDTH OF A REM
Terrestrial Consumer Products (from Earth) 4HE AVERAGE PERSON RECEIVES APPROXIMATELY MREM OF RADIATION PER 10 mrem 30 mrem YEAR FROM ALL SOURCES 4HE MAXIMUM LEGAL RADIATION DOSE LIMIT FOR A PERSON WHOSE PROFESSION PERMITS EXPOSURE IS MREM PER YEAR
Internal Sources (food, water, air) 250 mrem
Nuclear Medicine Diagnostics 48.4%
Internal 40.3%
U.S. Environmental Protection Agency maximum contaminant level (MCL) for beta particle and photon Cosmic 4.8% radioactivity in drinking water = 4 mrem per year Consumer Products Terrestrial 1.6% 4.8% Source: NCRP Report No. 160, March 3, 2009
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1375 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site The Nevada Site Office is Your Questions committed to addressing Answered your concerns.
The following are answers to the three most frequently asked questions AT THE LAST 'ROUNDWATER /PEN (OUSE IN &EBRUARY
How long will it take for contamination from historic nuclear testing to reach the public? . Will the Nevada Site Office The only well off the Nevada Test spend more time Site where contamination has been detected (well ER-EC-11) is interacting with 14 miles from the nearest private interested communities? well. According to a range of . computer model predictions, 9ES "ASED ON ATTENDANCE AT THE contamination is not expected to &EBRUARY /PEN (OUSE THE reach this private water source for .EVADA 3ITE /FFICE ORGANIZED THIS at least 100 years and may, in fact, YEARS /PEN (OUSE AND WILL never travel this distance. continue pursuing opportunities to spend time in communities surrounding the Nevada Test Site.
Does the Nevada Site Office 4HE .EVADA 3ITE /FFICE have a plan if contamination also maintains an active exceeding EPA standards is #OMMUNITY /UTREACH 0ROGRAM THROUGH WHICH found at a private or public speakers, educational drinking water source? resources and exhibits are . available upon request. If groundwater contaminants from Nevada Test Site activities were If you have questions, verified at a public or private comments or simply want drinking water source beyond the more information relating test site boundary, and the levels to groundwater at the EXCEEDED THE %0! DRINKING WATER Groundwater Open House (February 2009) Nevada Test Site, please STANDARDS THE .EVADA 3ITE /FFICE attendees learns about computer models CALL THE /FFICE OF 0UBLIC would immediately coordinate with developed for the Pahute Mesa region of the !FFAIRS AT the State of Nevada to shut down Nevada Test Site. or email us at the well and pursue an alternate ENVMGT NVDOEGOV water supply. .
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s OF 0UBLIC !FFAIRS April 2010, DOE/NV-1374 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV Nevada Test Site Current and past CAB members reside in Community Advisory Beatty, Amargosa Valley, Pahrump, and Board Las Vegas.
4HE #OMMUNITY !DVISORY "OARD #!" IS MADE UP OF 3OUTHERN .EVADA RESIDENTS AND IS FEDERALLY CHARTERED TO PROVIDE RECOMMENDATIONS TO THE %NVIRONMENTAL -ANAGEMENT 0ROGRAM AT THE .EVADA 4EST 3ITE
)N THE 53 $EPARTMENT OF %NERGY ASKED THE #!" TO SITE THE LOCATION OF A GROUNDWATER WELL THAT COULD BE USED TO GAIN DATA FOR THE 5NDERGROUND 4EST !REA 3UB 0ROJECT )N AFTER FOUR YEARS OF EXTENSIVE RESEARCH THE #!" RECOMMENDED THREE GROUNDWATER WELLS ON AND NEAR 0AHUTE -ESA )N THE 53 $EPARTMENT OF %NERGY DRILLED WELL %2 WHICH WAS ONE OF THE #!"S RECOMMENDED SITES
520,000 540,000 560,000
Community Advisory Board members tour the drill site they 19 ER-20-6 #1 recommended for the 20 ER-20-6 #2 Pahute Mesa ER-20-6 #3 !!U-20bd PS #1A ER-20-5 #1 !U-20 Water Well Underground Test Area !U-19v PS #1D ER-20-5 #2 ! U-20a #2 !U-20n PS #1D Project. Well ER-20-7 is Pahute Mesa #3! ER-20-5 #3 ! ER-20-1 !
ER-20-7 ! !ER-20-2 #1 12 4,120,000 ER-EC-1 ! located on Pahute Mesa Nevada Test and Training Range
! at the Nevada Test Site. ER-EC-6
!ER-EC-4
ER-EC-2A !
n yo n 17 a C 18 y st ! ir ! ER-18-2 h ER-EC-8 T Timber Mountain ER-OV-01 ! !ER-EC-5 ER-OV-06A
¨¦§95 !ER-30-1 !ER-OV-05 !ER-OV-02 16 4,100,000 30
! ER-EC-7
on
any C
e l 29 i m y t
For A Community Advisory Board ! 374 25 meeting held in Las Vegas, NV. Nye County ¨¦§ Beatty Explanation
! Existing Borehole or Well PM-OV Model Area Land Ownership Beatty Lincoln County ! ! Well ER-20-7 Clark County NTS Boundary Bureau of Land Management CALIFORNIA ! Indian Springs City/Town NTS Operational Areas U.S. Department of Defense NEVADA ! U.S. Highway Nevada Test & Training Range U.S. Department of Energy º Pahrump Las Vegas ! ! State Highway Private Land ´ 0613 2 0482 Kilometers Miles
40482 mi
4048m2 k
For more information about the Environmental Management program, contact: 53 $EPARTMENT OF %NERGY s .ATIONAL .UCLEAR 3ECURITY !DMINISTRATION .EVADA 3ITE /FFICE s /FFICE OF 0UBLIC !FFAIRS April 2010, DOE/NV-1379 0/ "OX ,AS 6EGAS .6 s s ENVMGT NVDOEGOV s WWWNVENERGYGOV What is the CAB? Committees
A group of southern Nevada The "AB includes a variety of volunteers providing committees focusing on specific recommendations to the clean-up activities at the Nevada Department of Energy on Test Site. Public participation on clean-up activities at the committees does not require "AB Nevada Test Site members tour membership. "ommittees typically of Sedan Crater meet every other month. Board meeting Budget Meetings ...revie s and prioritizes funding for clean-up projects
All meetings are Groundwater (UGTA) open to the public ...issues related to ground ater contamination characterization Full Board meetings: drilling and modeling of the second Wednesday Industrial Sites of odd-numbered months ...issues related to decontaminating and disposing of occasionally throughout visiting another DOE site obsolete buildings and facilities southern Nevada
Membership ...recruits ne members Member Responsibilities Outreach ...increases public a areness of the "ommunity Advisory Board committee meetings CAB well visit Soils a committee ...issues related to clean-up ! standards used to remediate timely response surface soil contaminated by " !! #$%&$ on the road historic nuclear testing per month ' ( Transportation/Waste is required ...issues related to transportation of hazardous and radioactive aste and aste disposal activities Board presentation
Phone Website Email 702-657-9088 www.nv.energy.gov/NTSCAB [email protected]