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Appendix

Figure Appendix Appendix

Figure Appendix

ESIzI-E[A-WQ-17-14447— Appendix Appendix Acknowledgments

Figure Appendix

Appendix

Ahhrevialions Quality

Detection Compliance

References Summary

Inspection Description Summary

Evaluation

Introduction

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Evaluation Statistical

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LLNLSite 300 ComplianceMonitoring Progi&nnfin ‘lie CloseilPit 1Lu’u(fill F,,,it1, O,,iutc,I,iii,iuI RL7cJItf 2016

Figure 5. Perchlorate concentrations in water samples collected from detection ground

water monitoring wells around [‘it I 9 Figure 6. Tritium activities in water samples collected from detection ground water

monitoring wells around Pit I 10

Figure A-I Ground Water elevation contour map for the Tnbsi!Tnbso HSU at Pit I 4-9

Tables

Table I MCLs for radioactivity in drinking water 5

Tab’e A-i. Pit I detection monitoring wells, constituents of concern. SLs. and quarterly analytical results for 2016 4-1

Table A-2. Pit I additional PCI’ constituents Ibr the fourth quarer 2016 analytical results for detection monitoring wells 4-5

Table 4-3. Pit I evaluation monitoring wells, constituents of concern, physical parameters, and analytical results for 11wIburth quarter 2016

Table A-4. Pit I groundwater well routine sampling dates A-7

Table A-S. Pit I VOC Reporting Limits A-9

Table C-I. Pit I quality assurance for routine. duplicate, and field blank samples for the fourth quarter 2016 C-I

Table D-l. Pit I Constituents of concern and monitoring frcquencie D-l

Table F- I. Well specification and construction details of the Pit I monitoring network E-l

ESII-EFA-WQ-17-I4447 - 13p.:Rn.ur ii UcRL-AR-]’u191-I6-4

1.L.‘VLSize 360 Co,n;,Iianr e .1utuormg Picig,ui; fin- tize C?; ed Pit I Lumijill FniuiIi OiIr7t;-i’n?LitI Report fin 2016

Summary This fourth quarter/annual report for 2016 summarizes compliance activities perionied at the Lawrence Livermore National Laboratory (LLNL) bxperimental Test Site (Site 300) landfill known as Pit I. Compliance activities at the pit consist of groundwater sampling and analysis, pit cap inspections, and reporting of analytical results. Groundwater measurements arc conlained in Appendix A, Tables A-I to A-4.

No evidence of a new release of constituents of concern (COC) from Pit I was indicated by the fourth quarter groundwater measurements. Analytical data did, however detect three constituents of concern, barium, tritium and total uranium above their statistical limits (SL) during this period. Details of these SL detections have been described in past reports and are discussed in detail in the Summary of Analytical Results section of this report. The presence of these COC does not indicate significant evidence of a release from Pit I

The annual pennandnt marker survey was perfornied by a LLNL licensed surveyor last quarter and results indicated no abnormulitics of the pit cp interiIy. Minor routine pit cap and druinge maintenance was completed during this quarter. Currently, the pit cap and drainage structurcs continue to function properly, and the vegetation cover and drainage systems ate in proper operating condition.

ESII-[iFA-WQ-l 7-14447 BI’!RB:ar ii’ ______

UCRL-AR-/0191-16-4

LL?1. Sue 301)Cmnpiiancc’Aio;iflc’,ingPi ogarn /iir the Clo.wclPit I Landfill Fowth Qui,te;4niizicgl Rcpu;t_,thr.2016

Introduction

This fourth quarterannual report for 2016 summarizes compliance monitoring results for a closed landfill known as Pit I at LLNL’s Site 300. Site 300 is a 28.3 square kilometer (kin:) (10.9 square miles 2j)[mi site located in the Altamont Hills approximately 10.5 km (6.5 riii) southwest of downtown Tracy. California (Figure I). The landfill is located in the northern portion of the site (Figure 2). Closure of this unlined Class I waste management unit was completed with waste in place in December 1992 tbllovinz a California Department of Health Services (now Department of Toxic Substances Control. or DTSC) approved Resource Conservation and Recovery Act (RCRA) Closure and Post-Closure Plan (PCP) using the LLNL Comprehensive Environmental Response, Compensation, and Liability Act (CERULA) Federal Facilities Agreement (FFA) process. Site 300 is owned by the U.S. Department of Energy (U.S. DOE) and is operated by Lawrence Livermore National Security, LLC.

Because Pit I is not part of a response action conducted under CERCLA, the post-closure monitoring and reporting for the Pit I Landfill is conducted under a Waste Discharge Requirements Order 93-100 and the February 19, 2010 Monitoring and Reporting Program issued by the California Regional Water Quality Control Board (CRWQCB), Central Valley Region.

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ESII-FFA-WQ-17-14447 BP:RB-ar _

UCRL-AR-10191-I6-1

LL.VLSilL 3coCon;plkua c AIrnri!u’ing Program jhr lbt Gas LdFl, I hint/fill Fourth Quurrtr :4,;niitil Rtpon ii,r t) 16

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Figure 2. Location of closed Pit I landfill at LLNL Site 301).

Pit I is located in (he Elk Ravine drainage area about 300 meters (rn) or 984 feet (ft) above mean sea level (MSL). Groundwater generally flows in an east-northeast direction beneath Pit I (Figure 3), following the inclination (dip) of underlying Miocene-age sedimentary rocks (Webster-Scholtcn, 1994).

The current monitoring network at Pit I consists of twelve monitoring wells. These include eight detection monitoring wells and four evaluation monitoring wells (Figure 3). The detection monitoring ‘veils that are used to sample the groundwater in the vicinity ol nt I include: wells KI-OIC and Kl-07 located hydrologically upgradcnt from Pit I; down-gradIent ‘veils Kl-028. Kl-04. Kl-05. and W-PITI-2326: and cross-gradient wells Kl-08 and Kl-09. The primary objective of the detection monitoring vells is to detect any new release of constituents of concern to groundwater. Constituents of concern, as defined by Title 23 of the California Code of Regulations (CCR), Chapter 15. are waste constituents, reaction products, and hazardous constituents that are reasonably expected to be in or derived from waste buried in the Pit I Landfill. LLNL collects. analyzes, and statistically evaluates one sample quarterly from each detection monitoring vell.

The evaluation monitoring wells are all downgradient of Pit I wells and include K 1-06, W-PITI-2620, W-PITI-2209, and W-S65-2005 as required by the Monitoring Reporting Program (MRP). Well W-PITI-02 is no longer sampled because it was abandoned and replaced

ESH-IEFA-WQ-17-14447 — BP/RB:ar L’CRL-AR-1019I 164

Li..VLSite 300 Con;pliuiice ilu,ziitnii;g Program h,r I/ic Ch,.sLI? Pit I Lund/lU Fourth Qiuuicr _-lnnj,uIRtport!r 2016

by velI W-PITI-2620 during the third quarter of 20! 1 due to well damage. These evaluation monitoring ‘veils were added to Pit I monitoring and reporting requirements to track existing plumes of perchloratc and tritium from an up-gradient source. LLNL collects and analyzes one sample quarterly from cach evaluation monitoring vell and annually conducts trend analyses for tritiuni and perchiorate.

All of these wells are screened in the uppermost water-hearing zone in the Neroly Formation lower blue sandstone unit (Tnbsi/Tnbso). The Neroly Formation contains the main aquifer beneath Site 300. Pit 2, which was closed before RCRA was enacted, is hydrologically upgradient from Pit I. In 1992, a 2.4 m (8 if) thick RCRA cap containing an impermeable layer of clay that is 0.6 m (2 fi) thick was constructed over Pit I. The cap prevents rainwater from percolating through the waste buried in the pit. A water diversion channel was constructed around the pit cap to remove storm water runoff. The diversion channel empties into the adjacent arroyo. the licadwater of Elk Ravine.

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Figure 3. Locations of Pit I compliance monitoring wells.

ESII-EFA-WQ-1 7-4447— BP/RB:ar 3

2 1JCR14R 10191-16.4

LL.VLShe 31W) c kiunitoring Program fir she Closed Pit I )jindtiII Fours/i Qiuirtert4nnru,1 Rtpon for 0 16

Compliance Monitoring Program Overview This report fulfills quarterly requirements set forth in the following two documents: (I) Waste Discharge Requirements (WDR) Order 93-100 and the February 18. 2010, MRP No. 93-100, administered by the California CVRWQCB (CVRWQCB 1993 and 2010) and (2) LLNL

Site 300 RCRA Closure and Post-Closure Plans (PCPs), Landfill Pits I and 7 (Rogers/Pacific Corporation 1990). The PCP was approved by the California Department of Health Services (currently the California Department of Toxic Substances Control), The combined requirements include quarterly groundwater sampling and analyses to detect poteniial releases of constituents of concern from the landfill, annual and post-major storm event visual inspections of pit cap integrity, repairs as necessary to maintain the integrity of the landfill and its water-diversion system, annual measurements of cap survey markers to detect subsidence, an annual inspection of the cap by an independent engineer, and quarterly written monitoring reports. Quality Assurance To ensure quality data. LLNL works ‘ithin the established Quality Assurance (QA) program of the LLNL Environment, Safety & Health Directorate. LLNL uses protocols and procedures that cover all aspects of uroundwater sampling. sample tracking, and duta management. These written protocols and procedures are contained in the LLNL Livermore Site and Site 301) Environmental Restoration Project Standard Operating Procedures (SOPs) (Goodrich and Lorega. 2016). and the Envi,-onmental AlonhtoringPlan (Gallcuos, 2012;. SOPs are used to minimize inadvertent sample contamination and maintain sample integrity from the well to the analytical lahoralory. Data management SOPs ensure that all laboriory measurements arc received, accurately recorded, and properly stored both in a computer database and in hardcopy format.

Each quarter, a duplicate (collocated) set of groundwater samples is collected from each monitoring network and a set of blank samples is prepared from a randomly chosen well. In addition, equipment blanks are prepared and analyzed to ensure that sampling equipment is properly cleaned before use. Each day, when samples arc collected lbr volatile organic compound (VOC) analysis, a trip blank (prepared at the analytical laboratory) is carried into the field. It is returned unopened to the analytical laboratory for VOC analysis. If VOCs arc detected in a trip blank and in any of the routine samples obtained that day, sample results may be discounted nd new sampling may be perfoniwd.

As required by Executive Order 12770! measurements are reported in Système Internationale (SI) units. The SI unit for radioactivity is the becquerel (Bq), equal to I nuclear disintegration per second. The more commonly used unit, picocurie (pCi), is equal to I nuclear disintegration per 27 seconds. As a convenience, maximum contaminant levels (MCLs) for radioactivity in drinking water are given in both hecquerels per liwr (BqFL)and picocuries per liter (pCiL) in Table I. Note that MCLs are provided for reference only, because this report does not involve wells used for potable domestic, livestock, or industrial water supply.

ESH-EFA-WQ-l 7-14447 — BP/RB:ar 4 LCRL-AR-1U191-] 6-4

LLYL SEw300 CnmptE,nL-eitnnuoiuig Progrun; fl;; the Clu.cci Pit I 1.undhill Fon, th Qiunrer 4sin’‘aI Repiit to, 2(116

Table I - MCLs for radioactivity in drinLing waler. Radiological parnrneler MCL (Bq’L) NICL (pQi/L) Gross alpha 0.555 15 Gross beta 1.85 50 Tritium 740 20,000 Radium (toial) 0.185 5 Uranium (tolal) 0.74 20 Description of Report Contents The “Summary of Analytical Results” section reviews unv constituents of concern delected in groundwater during the fourth quarter of 2016 from detection monitoring und pereblorate and tritium in evaluation monitoring wells. Constituents of concern measurements that exceeded SLs or MCLs in drinking water are discussed in this report.

Appendix A conmins the groundwater analytical measurements for the fourth quarter of 2016. Pit I data are in Tahies A-I. A-2. and A-3. Table A—Ishows the sample dates for Pit I, and A-5 shows the reporting limits (RLs) for the Pit I VOC’constitucnLsof concern. In Tables A-I through A—3.results that are less than the RI are preficed with a less than sign (<). Note that the Appendix A tables may include some small negative values for radioactivity measurcments. These are below the method RLs and are calculated values. They simply indicate that the radioactivity for that groundwater sample is less than a low reference standard. Appendix A also contains a groundwater elevation contour map (Figure A-I) of water levels from the Tnhsi/Tnbso Hydrostratigraphic Unit (HSU) at Pit I. This map is presented in Ehesecond and fourth quarter compliance monitoring reports.

Appendix B explains the methods used to detennine the SL of concentration lbr a constituent of concern. Requirements for statistical treatment of groundwater data are established in the CCR. Title 23, Division 3, Chapter 15. Section 2550.7. LLNL uses a statistical prediction limit method to implement intrawell comparisons. The method uses the averauc and standard deviation of historical measurements to calculate a SL value. If a routine quarterly constituent of concern measurement exceeds its SL and is confirmed by retesting. it is reported to the CVRWQCB as statistically significant evidence of a release. Appendix C contains the results for QA sample analyses performed during the fourth quarter of 2016 at Pit I (Table C-I). Appendix D consists of Table P-I summarizing constituents of concern and the sampling frequencies in the monitoring network for the pit. The regulatory drivers for each constituent of concern are also included in Table fl-I. Appendix E consists of Table E-l and presents vcILspecification and construction details for detection monitoring and evaluation monitoring wells. Appendix F consists of hydrographs for all compliance monitoring ‘veils. Appendix G consists of Table G-l and includes field logs for all compliance monitoring wells. Appendix II consists of Statistical Limits and Graphs of Ground Water Measurements.

ESII-IEFA-WQ-l 7-14447 — tlP/Rfl:ar 5 UC’RL-.4R-1(1191-16-4

LLVL Si;’ 300 C;’npl&uicc ik’’;iiuring PIfg’u!I: fur (he C/useu Pit I Luiu4Iii Fuu’,h Oiu:,ter.-fnn,,il Re cJit thi- 2(116

Summary of Analytical Results

This section summarizes the analytical results for Pit I for the fourth quarter of 2016 and reports on the requirements of the CVI{WQCB Pit I \IRP and post closure plan requirements. During the fourth quarter monitoring period, no new releases of constLtuentsof concern to groundwater from the pit are evident in the data. As pan of the MRP, stutisticl limits (SLs) used to monilor groundwater constituenis of concern are shown on Table A—I.The MRP requires that two confirmation samples be collected from wells with constituents of concern exceeding SLs. If either of the two confirmation samples exceeds the SL, a finding of stalistically significant evidence of a release is confirmed and a seven-day notification letter must be submitted to the CVRWQCB. The statistical tests used to evaluate this data are those identified in Appendix B. Detection Monitoring Wells

Analytical results indicate that there were no new constituents of concern detected at Pit I detection monitoring wells. Analytical data did, however detect three constituents of concern above their siuistical limits (SL) that include barium. tritium. and total uranium. The presence of these COC does not indicate a sümificant evidence of a release from Pit I and details otihese SL detections are explained below. Also, during this sampling period the results from two detection monitoring wells (1(1-0Th and K 1-04) were removed from the reportinu tables (Table A-I and Table A—2).Upon review of the data, it was revealed that the sample bottles were switched in the held and all data from these wells were flagged as suspect in the LLNL data base and deemed unreliable. Data collection from these wells will resume during the first quarter 2017 sampling.

This quarler. barium was detccted at 51 pg’L in a cross gradient well. RI-OS (SL 49 igJL). Two retest samples indicated values of 53 and 43 tg/L. Based on our analysis and historical trends, LLNL does nut believe that these results indicate a significant evidence of a release of barium from Pit I - Barium has been reported to the CVRWQCB several times in the past, and a letter to the Water Board from October 2000 notified the agency of the results. Barium was also reported in annual reports (Campbell, 2006, 2008) indicating that barium background concentrations were increasing slightly in ground water around these wells showing the increases occurring in monitoring wells up-gradient and cross-gradient of Pit I that appear to be unrelated to any releases from Pit I Also, a 7-Day letter was sent to the CVRWQCB on December 17, 2014 that explained elevated barium results and conveyed that barium has been quite stable historically and that the barium detections were similar in past reports in 2009 and 2010. For thrther details see the historic trend plots of barium in this well in the annual graphsplois presented in Appendix H of the 2016 Fourth Quarter/Annual Report (Blake, 2017).

Tritium was detected in two detection monitoring wells, RI-OS (14.7 Bq’L. SLIO.7 Bq’L). and 1(1-09 (37 Bq:L, SL=S.66 BqFL). Tritium activities in these ‘veils have traditionally fluctuated and LLNL does not believe this tritium data is indicative ofa statistically significant evidence of a release of tritium from Pit I, hut rather has been attributed to an upgradient source near Pit 7 and the Building 850 area. The relationship of Pit Ito these upgradient sources is described in the 20/4 Annual Compliance Monitoring Report, Lrnr,’ence Livermure National Lcthoraton’, Si!’ 300 (Ferry, 2015). The drinking water standard MCL for tritium is 740 Bq/L.

ESH-EFA-WQ-17-14447— BPIRB:ar 6 UCRL-AR-101ci- 16-4

LLNLSit’ 300 (‘oiiiiiaiicc Mont/on lg P;ogrnn j2,; tile (‘IoceI Pit I Land/ill Foiuzij Quarter .Iuniial Rcpo,t len 2016

The total uranium aclivities delected above the SL from a routine sample “crc from vell W

PITI-2326 (0163 Bq’L, [SL=0.139 Sql]). Thctotal uranium activitvinthis well and oilier Pit I wells have been discussed in past reports (Slake. 2011: Blake. 2015) and in letters to thc CVRWQCB (Schultz, 2010 [90-Day Letter]; Pierce, 2011 [Seven-Day Written Notification]),

As stated in these letters and reports, the analysis and in{brmation that LLNL provided to the

CVRWQCB indicated that the total uranium activities in the Pit I wells have historically had natural uranium signatures and are within background ranges. LLNL conducted additional analyses (Bbkc. 2011) for uranium isotopes on various Pit I monitoring wells to further investigate total uranium at Pit I. LLNL concluded in these cases, that the uranium 235/238 isotopic ratios were very close to a ratio of 0.0072 indicating that the uranium in the Pit I wells is of natural origin. This information thereibre indicates that the SL exceedance of total urunium in Pit I wells does not indicate a significant evidence ofa release of total uranium from the piL

The concentrations of selected VOCs detected in groundwater samples from detection monitoring wells are summarized and presented as total VOCs (Table A-2). VOCs were detected in the groundwater samples from down-gradient well K] -05 (11.0 tg/L), and cross-gradient wells Kl-08 (13 4g/L) and Kl-09 (30 tg’L). VOC values are similar to levels reported last quarter. The only VOC observed in these samples was Freon- 113. Freon- 113 arises from a source at Building 865, about 300 m (984 II) west of Pit I (Ferry and Holtzapple, 2006). While Freon-I 13 is not a constituent of concern for Pit I, concentrations have generally decreased from historic maxima, and in the past few years the concentrations appear to be stable or declining.

In addition to the normal reporting on constituents of concern with statistical limits. this report evaluates additional constituents that historically havc elevated concentrations and are monitored under the post closure plan or under LLNL’s suneillance monitoring prouram under DOE Order 458.1. For this annual report, Freon- 113 results for ground waste samples collected from monitoring ‘veils Kl-05. KI-OS. and KI-09 are plotted on Figure 4.

ESII-EFA-\VQ-17-14447 BPRBar 7 (JCRL-AR-10191-164

1,1_fl Site 300 Cosyn;hunt c Ito, is sing Th g I an she C/usc I Pu / Lii djii! Fousti Qiuirsci _-l,,;ituslRtpciit i,r 2016

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Evaluation Monitoring Wells Evaluation monitoring vells are required by tl1e MRP and sample analytical results from these wells are shovn on Table A—3.The table lists physical parameters as well as the results of pereNoraic and tritium analyses. These weUs are used to track exisling plumes of purchiornic and tritium from an up-gradient source. As required by the MRP, annual trend analyses uraphs for both percholorate and tritium evaluation monitoring wells are presented in each fourth quarter/annual report. During this quarter. evaluation monitoring well K 1-06 was not sampled due to insufficient water.

During the fourth quarter 2016. analytical results indicate that the perchiorate concentration in one evaluation monitoring well. \V-P(TI -2620 (4.0 taL) ‘vas equal to the reportinu limit of 4.0 jig’L but slightly less than the 6.0 pg/L MCL for perchlorate. The perchlorate concentration in this well is similar to Ihe concentrations reported in previous quarterly reports. LLNL will continue to monitor the perchlorate concentrations in all evaluation monitoring wells.

ESH-EFA-WQ-17-14447 BP/RB:ar S LCRi-AR-ifiIYI-fl5-4

iL_Vt.Site 500 Co’IIp(ia’ILC .fonizoring Prüg,n,; in the Closed Pit 1 Lam/Jill Fourth Qua,, r.Aimuil 1RL,,),i für 2016

The tritium activity in two of thc four evaluation monitoring wells. W-PITI-2620 (6S.XBq’L) and W-865-2005 (72.5 Bq/L) exceeded the detection )imil of 3.7 Bq/L, and ure slightly higher than the uclivilies reported lasi quarier. The MCL for tritium in drinking water is (740 Bq/L).

For this annual report, perchiorate results for ground water samples collected from evaluation monitoring wells W-PITI-02, W-PITI-2209, W-865-2005, 1(1-06, and W-PITI-2620 are plotted on Figure 5.

9

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ESH-LFA-WQ-17-14447 — DP/RB:ar 9

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Inspection and Maintenance Summary The annual permanent marker suney was performed by a LLNL iicensed surveyor last quarter and results indicated no abnormalities of the pit cap integrity. Minor routine pit cap and drainage maintenance was completed durinu this quarter. Currently the pit cap and drainage structures continue to function properly, and the vegetation cover and drainage systems are in proper operating condition.

ESH-EFA-\VQ-17-11447 — BP:RBar II

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(2011).

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(UCRL-AR-1019

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References

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5-4).

1-3),

2014

30,

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Thst

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Si/c

Site

Larencc

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Site

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2006.

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0191

board

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Labo,-ato,’,

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Report

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2013, 2015,

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Si/c

300 300

300

300 300.

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National

and 19-14).

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-06-4).

-03-4).

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Lawrence

(1993).

(2010).

300

300

Compliance

Compliance Compliance

Compliance

7.

Lawrence

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/br

Lawrence

Compliance

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Lawrence

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Livermore

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National

Monitoring

Laboratory.

No.

Monitoring

on

Report/or

Pit

Lavrence

County

Monitoring

Control

Monitoring

Monitoring

of

Experimental

December

I

93-IOU.

Livemiore

Lam/fill

Radium-226

National

Livermore

Livermore

Laboratory.

National

4ational National

National

LCRL-;IR-inJYJ-J6-3

(June

Progrrnn Program/h;

Program

Board,

Program

the

Site

Report.

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and

14,

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Building

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300.

Laboratory.

Test

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Laboratory,

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and

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1993).

fhr

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far

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LL_VLSite 309 CcimpluriiceMon(turing Piug’v’n for the CIu.ce/ Pit I Li,;ilflhI Fourth Quarter Ani,ucilReport f, 2016

Goodrich. R., and C Lorega (2016), LLVL Livermore Site and Site 300 Environnwntal Restoration P,v/ect Standard Opeiming Procethues (SOPs), Lawrence Livermore National Laboratory. Livermore. Calif. (UCRL-MA-1091 15 Rev. 15).

Hoppes, W. G., et al (I992), Dm11Report of Waste Discharge, LUlL Site 300, Table I (UCRL-AR 110071).

Kato, T. 1’.(2014), Seven-Day Letter: “Statistically Significant Evidence of a Release of Barium from La’ rence Livermore National Laboratory Experimental Site (Site 300) Pit I.” Letter to Aimee Phiri. Central Valley Regional Water Quality Control Board, dated December 17, 2014, from Thomas Kato, Environmental Functional Area Manager. Livennore, Calif. (ESH-EFA WQ-14-7514)

Pierce, NI.(2011). Seven-Day Written Notification: ‘Statistically Significant Evidence of a Release of Total uranium from Lawrence Livermore National Laboratory Experimental Test (Site 300) Pit I” Letter to Marcus Pierce. California Environmental Protection Agency, Central Valley Regional Water Quality Control Board, dated July 29. 201 I, from Bruce Schultz. Environmental

Functional Area Manager, Li ermore. Calif (ESH-EFA-WQ- 11-1371 / EFA i -081) Schultz, H. H. (2010), 90-Day Report: “Statistically Significant Evidence ofa Release of Radium- 226 and Total uranium from Pit I at the Lawrence Livermore National Laboratory Experimental Test Site 300.” Letter to Kathryn Dominic, California Environmental Protection Agency, Central Valley Regional Water Quality Control Board, dated October 22, 2010, from Bruce Schultz, Environmental Functional Area Manager, Livermore, Calif. (WAMA 10-006), Schultz, H. B. (2011), Seven-Day Written Notification: “Statistically Significant Evidence of Total Uranium and Tritium from Lawrence Livermore National Laboratory Experimental Site (Site 300) Pit I” Letter to Marcus Pierce. Central Valley Regional Waler Quality Control Board, dated July 29. 2011, from Bruce Schultz, Environmental Functional Area Manager, Livermore. Calif. (ESH-EFA-WQ-l 1-1871).

Webster—Scholien.C. P. (Ed.) (1994). Final Sitc’—lVickRen,edia! bncstigation Report, Lair,-ence Lhe,,norc Natio,,al Laboraton. Sire 300. Lawrence Livennore National Laboratory. Livermore. Calif (UCRL-AR-108l3 I),

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LLVL Siti 300 Ctnnphuznce Sknrnnng Pugrum fbi the CIo.td Pet I Lcu;I/u1I F{nhilIIOU(Zrtc_r4,imml Repurt for ?OIt

Appendix A

Tables and Figures of Groundwater Measurements

ESH-EFA-WQ-I 7-1444? — BT”Rflur UCI?L-AR-10191-16-1

LLNLSia 300 Compliance Atunhtoring Pogiam 12,’fiw C/used Pit I Landfill Fou,tli Quarter/Annual Report fi,r 1016

Table A—I. Pit I deleclion nionhloring wells, constil”enls of concern, SLs and quarierlv analyticol results for 2016.

Quarter 1 2 3 4 COC (units) VeII SL Result Recoil Result Resull

- II:, Arsenic (jtg•L) Kl-OIC — Dr’ Div 1kv Dry a) KI-07 II II 12 5.3

KI-02fl 15 12 13 12

KI-04 16 Ii I] 13 Kl-05 IS 14 Il IS IS KI-OX 17 4 II 14 4

Kl-09 16 3 II 13 5

W-PITI-2326 14 12 12 12 2 Bariumg/L) Kl-01C Dry Dry Dry Dry Kl-07 — 28 <120 28 26 KI-02B 26 27 26 26 — Kl-04 32 30 29 31 KI-05 43 37 <120 38 38 KI-OS 49 44 <120 40 51,5343 Kl-09 51 48 <120 47 46 W-rITI-2326 46 39 37 37 38 (a) flcryllium(gg:L) Kl-UIC — Dry Dry Dry Ui-v Kl-07

KI-028 0 52 <0 5 <0.5 <0.5 KI-04 0.5 <.0.5 <0.5 <0.5 K1-05 0.5 <05 <2.5 <0.5 <.05 K I-OR 0.5 <0.5 <2.5 <0.5 <0.5 K1-09 0.5 <0.5 <2.5 <0.5 <0.5 W-PITI-2326 0.5 <0.5 <05 <0.5 <.0.5 (a) Cobalt (gg’L) K 1-01C - Dry Dry Dry Dry (a) K1-07 <25 <120 <25 <25 KI-02B 25 <25 <25 <25 (ci KI-04 25 <25 <25 <25 Cc} KI-OS 25 <25 <120 <-25 <25 KI-08 25 <25 <120 <25 KI-Ug 25 <25 <120 <25 <25

ESII-EFA-WQ-17-14447 - Br.RB.ar A-I UCRL-AR-10191-16-4 LLVLSite 300 Coinplium c - ftu:Uormg Prt g’vi fin the Closed P1; I Lan/li/I Eu,r;h Qiiigrir 4niriiti Rcj,rni fl,, 20/6

Table A—I. Pit I ijutection monitoring wvlk coitsdtiienis of coocvru, SIs, and quarterly’.inIytical results for 20! 6.

Quarftr 1 2 3 4 (‘DC (tunis) ‘clI SL Resull Result RcsuIt Result V/-PIT 1-2326 25 <25 <25 <25 <25 [aJ Copper (jig/L) K1-01C Dry Dry Dry Dry {a KI-07 <10 <50 <10 <10 (c KI-02B 60 <10 <10 <10 Kl-04 0 <10 <10 <10 C) KI-05 30 <10 <50 <10 <10 1(1-OS I0 <10 <50 <-10

K I-09 I0

K 1-04 5 <5 <5 <5 — 1(1-05 13 <5 <25 <5 <5 KI-08 5 <5 <25 <5 <5 Kl-09 5 <5 <25 <5 <5 W-I’ITI-2326 5 <5 <5 <5 <5 Ia’ Vanadium (g L) Kl-OIC — Dry Dry Dry Dry K 1-07 59 <120 58 45 KI-0213 59 48 49 49 (C K 1-04 46 34 36 35 KI-05 79 63 <120 64 62 KI-08 78 63 <120 53 77 1(1-09 69 61 <120 62 57 W-PITI-2326 61 50 51 50 47 Zin: (pg U KI-DIC — Dry Dr 1kv Div KI-07 <20 <100 <20 <20 KI-02B 98 <20 <‘0 <20 Kl-04 51 <20 <20 <20 KI-OS 24 <20 <100 <20 <2() KI-08 20 <20 <100 <20 <20

ILSH.EFA-WQ-17-14447 - BI’/R13:ar A-2 UCRL-AR-10191-16-4

LLVt.Slit’3m) Coiiipliun c !ouiwI’iIgP,ogruni fin tlic Closed Pit 1 Landfill Font?; Oiiur;t’r.4mrnnIR,n[ur 2016

Table A—I. Pit I detection monitoring ivells. constitucflLs of concern, SLs. and qiiarlurly analytical resiIts for 2016.

Quarter 1 2 3 4 COC (units) Well SL kewlt Result Result Result Kl-09 20 <20 <100 <20 <20 W-PIT 1-2326 43 <20 c’O <20 <20 Radium 226 (Bq/L) 1(1-OW — Dry Dry Dry Dry (1-07 0.004 0.003 DM02 0.006 Kl-02B 0.012 0.007 0.001 0.005 1(1-04 0.012 0.005 0002 0.008 Kl-05 0.012 0,003 0.004 0.007 0.006 1(1-08 0.009 0.007 0.003 0.002 0.005 1(1-09 0.012 0.005 0.000 0.006 0.004 W-PITI-2326 0.019 0.007 0.001 0 005 0 005 Tritkim(Dq/L) KI-GIC - Dry Dry Dry Dry K-U? — 0.977 2.01 3.14 47.0 1(1-0213 ISS 115 123 122 1(1-04 19.2 16.4 18.6 16.4 1(1-05 11.4 740 11.2 884 6.55

1(1-08 10.7 7. 14 9.80 S.8I 14.7

KI-09 866 6.14 9.06 I 1.1 37.4 W-PITI-2326 133 96.9 95.1 966 98.4 Uranium (total, 13q’L) K I-OIC Dry Dry Dry Dry K1-07 — 0.118 0.111 0.122 0,116 K1-0213 0.145 0.169 0.174 0.169 1(1-04 0.085 0.067 0.072 0.071 — KI-05 0.115 0.108 0.113 0.119 0111 1(1-08 0.149 0.102 0.106 0.118 0.112 1(1-09 0.137 0.115 0.124 0.131 0.133 W-P[Tl-2326 0.139 0. 39 0.150 0.145 0163 Thorium 228 (BqL) KI-01C Div Dry Dry Dry —‘ 1(1-07 0.000 -O00) 0.001 0.000

KI-0213 (}.003 0 030 0.000 -0.001 1(1.04 0.005 0 030 0.000 0 001 K1-05 0.003 0 002 0.000 0 000 -0.001 1(1-08 0.004 -0.001 0.001 0.001 0 000 Kl-09 0.008 -0.002 0.000 0.000 -0.001 \V-PITI-2326 0.005 0.000 0.000 0 000 -0.001 Thorium 232 (13q:L) K I-UIC Dry Dry Dry Dry 1(1-07 0000 0.000 0.000 0.000 1(1-028 0.004 0.001 0.000 0.000 KI-04 0.001 0.00) 0.000 0.000 — Kl-05 0.004 0.000 0.000 0.000 0.000

ESI’I-EFA-WQ-17-14447 - BP/RB:ar A3 UCRL-AR-t0t91-14-4

LI Vt Site’300 Cotupliwice Atiuihci;ing Progiani fin the CIu.wclPit I Landfill Fuu,th Q;uzr1t .4nmuil RLprJr Ii,, 2016

Tnble A—I. I’it I delect ion nionito rilig wells, co asti to en tS of Concern, SLs, and quay ierlya nalytical results for 2016.

Quarter I 2 3 4 COC (units) Well SL Rcdult Result Result Resull RI-US 0.004 0001 0.000 0.000 0.000 XJ-09 0.002 DODD 0.000 0.000 0.000 W-PITI-2326 0 001 0.004 0.000 0.000 0 000 FIMX (ggIL) KI-OIC Dry Dry Dry Dry

IC1-07

(C) KI-02B I

(C) Kl-04 I <1 <0.87 <0.77

Kl-05 I

Kl-08 I

Kl-09 I <0.87

w-piri-2326 I <0.85

RI-Urn I

Kl-05 I

KI-09 I <0.87

W-PITI-2326 I <0.85

We’IsK1—1)1C and KI 7 haveno releasedetectionSLs for COCs because they are upgnidien’ ill’ ii Radioactivityincasurci enI are ccintcted Fr the background radioactivity inside lie measurement chamber.

A i negative result fbi-mdiojelit ty indicates that the sample nicaured lower than the background by Ilieamount shown. Radinacti’ Ijy values shown as 0.000measuredlessthan 0.0005 Bq/L.

Data oniitted this quarter due to a field sampling error. Field sample bottles for wells KI-02B and K -01 were likelyswitched and data fir this quarter arc suspect and unreliable. Data has been lagged and removed from the [IN L.data base.

ESH-EFA-WQ-l 7-14447 - 1BPRB;ar A-4 UCRL-AR-l0l9]-Ió-4 LLNL Site 300 Compliance Thy gmmfbr the Closed Pit I Land/ill Fourth Qita;ie;iAnnu,I Report for 2016

Table A-2. Pit I additional PCP constituents for the fourth quarter 2016 analytical results for detection monitoring wells. Monitoring l’elI 1(1-07 Kl-02fl 1(1-04 Kl-05 KI-OX Kl-09 W-PITI-2326 Date Sampled Oct 17 Oct II Gel II Nov 10 Oct31 Oct 18 Nov 14

Depll, 10 water (ft) 145.48 139.88 160.43 17463 I 5973 16566 I 8351

Ground walerelevation (ft) 964.15 967.35 96224 956.23 963.01 96102 964.28

Field p11 (Units) 7.62 748 7.72 7.78 7.63 7.61 7.71

Field Specific Conductance ([Imhos/cru) 628 764 607 619 623 648 730

Field Temperature (Degrees C) 19.9 19.8 20.3 20.2 20.8 l9J 21.3

Gross alpha (Bg/L) 0.062 * 0,078 0.118 0071 IL 142

Gross beta (BqfL) 0098 0.097 0.104 0147 0.071

Nitrate (as N03) (mg/L) 30 * * 36 31 34 32

Perchlorate (jtg!L) <4 * * <4 <4 <4 6.6

Total VOCs (calculated) (1igIL) ND * * II 13 30 ND

Freon 113 (pg/L) <0.5 * * II 13 30 <0.5 Nnte: ND Nut dctcccl ihove reporting limit. Repoiling limits vary with indiiduaI VOCs.

* Data omitted this quarler due to a field sampling error. Field sample bottles for veIls K1-02B and 1(1-04 were likely switched and data for this quaner are suspect and unreliable. Data has been flagged and remuved from the LLNL data base.

ESIT-EFA-WQ-l 7-14447-BPIRII:ar A-5 £JCRL-AR-10191-16-4

LLNL Site 30(1Coiipiwncc Mo,zuu,big P,vg,vz,nfi,r tilt’ ClosedPit I Lcz,jdhill

Foni tb Qt irteilA meal Rep 1fin’2(116

Tabic A-3. Pit I evaluation monitoring wells, constituents of concern. physical parameters, and analvdcal results for fourth quarter 2016. W-PlTl-2620 \V-PITl-2209 \V-865-2005

Date Sampled Oct 6 OcI 5 Oci 26

Depth to water (II) 23447 218 53 329.22

Ground water elevation (It) 915.40 917.52 94165

Tritium (Bg’L) 68.8 4.59 72 5

Field p11(Units 7.81 7.80 807

Field Specific Conductance (urnloscrn) 786 879 610

Field Ternpcrature(Degrees C) 21.5 19.1 19.4

Pereblarate (tg U 4.0 <4 <4

FSH-EFA-WQ-:7-14447- UP RD 46 (ICit -AR-/0191—16—4

Nt Sue 300 np/lance lon taring F’ ni /i,, i/ic CI, I Pit I Landfill irk Quwic,-IA ii ia! Rc it fiji 1(1/

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LL.VLSite 300 Cr;iiiIurnce ifonizwing Pei’giuni fm ihe Closei! Ph 1 LcinIfi!I Fourth Ouciner _1,,niiizlRtpo,t íà, 2(116

Appendix B

Statistical Methods for Release Detection

ESH-EFA-WQ-I 7-14447-- DP/Rflar

upgradient

evidence

this did

CVRWQCB well. 2012. or

ESH-EFA-WQ-I1-14447— Letter. continued several by

letter evaluate

A “statistically

exceeds detection

waler such

In Title augmented

Each historical implement well

Where

Chapter

When increases

compare Statistical

LLNL

Revised

change

addition,

another

approximately

not

report

w

as

23,

quarter.

request

samples

LLNL

LLNL

too

LLNL

uses

sufficient

believe

detect

quarters.

analytical

the

MRP

SL

15,

Chapter

each

ofa

is

in

measurements

of

to

few

monitoring

commencing

source.

vells,

intrawell

by

an

used

sampling

SL.

detections

Section

concentration

the

be

received

significant

agreed

proposed

on

release

communicated

each

potential

measurement

No.

a

detections

collected

inirawell

that

slightly

verification

SL

June

If

as

detections

However,

as

15,

error

one

93-100

measurement

either

LLVL

the

Statistical

for

an

well

to

2550.7.

comparisons.

nP/RB

from

Section

is

13.

a

of

percent

the

SL.

to

for

total

total

releases

in

letter

elevated

performed

during evidence

comparison

from

SUe

to

the

as

update

2011

or

are

the

SL

that

all

ar (February

Pit

calculate

The

the

the

both are

30(1

uranium

at

uranium

procedure

RCRA

with

available,

2550.7.

response

constituents

evaluation laboratory.

changes

of

I.

a

siatistically

because

the

value

natural

available,

of

Co,;iplicu;c

SLs

vell

the

during

is

individual

of

LLNL’s

of

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constituents

Methods

third

Fourth

to

compared The

the

closure

a

total

currently

a

for

activities

IS,

at

to

was evaluate

CVRWQCB

release.”

This

SL

proposed

from

uranium-235/238

containing

either

the

retests

method

vell

past

the

each

quarter

Appendix

monitoring 2010)

c

Oua,tc,½1

uranium

Retests

below value.

conclusion

LLNL

of

ifoniuwisig

exceed

protects

total

remainder

measurements

and

the

measurements

\V-PITJ

concern

analyte

the

with

in

whether

also

in

of

to

for

uses

of

Based

CVRWQCR

L’CP

uranium

by

the

use

uses

The

analytical

this

,;niuit

are satisfythe

concern

two

the

B-I SL

2012.

its

in

exceed

LLNL.

against

closed

P,vgram

veIls

the

Release

are

-2326

at

for

used

is in

past

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associated

SL

a

from

variation

of

discreet

on

Rem;n

B

tritium

each

statistical

based

Table

average

documented

the

ratio

2011

values

is

the

letters

to

near

when

“hen

the

and

was

false

3.12 upgradient

at

reporting

calculated

Pit

for

provisions

down-gradient

ground

fin

on

MRP,

(hat

on

at

SL,

and

and

A-I

retests,

changes [‘ii

i/ic

historically

sent

I

at

20/6

July

pCi!L

Detection

SL.

the

positives there

the

and

and

samples

well

prediction

landfill

ve1l

the

the

Clus

perchlorate

during

I

detection

monitoring

original

‘veil.

to

water.

indicate

standard

quarterly

The

in

16. limit

has

result

well

represent

so

cit

well.

in

to

the

in

of

the

were

Pit

2012

accordance that

3.75

is

order

collected

SL

the

due not

CCR

In

CVRWQCB

or

had

seen

MM’.

described

I

and

ntraweii

limit

is

measurement

The

monitoring

a

the

b,ndhll

comparison

maximum

it

incorporated

first

been

deviation

pCi/L

to

indicating

reports UCRL-AR-10191-Io-4

results

considered

release

bccn

will

is

to

Title23.

statistical

cross-gradient

al

June

other

SL

method

conducted

detect

quarter

that

a

from

be

elevated

for

for with

release.

tests

fbr in

that

13,2011

from

causes,

exceeded

well.

in of

recent

this the

this

wells.

that

ground

is

to

of

CCR

to

a

we

into

Pit

he

well

to

the

for

I a (]CRL-AR-1t)191-16-4

LL:VLSite 3(ThCninpliiia AIOIlflOI-IIlg P’vg’un: tin tire Clubci? Pit / Lu,idtiIi F)tl Rporz fin JUl 6

Appendix C

Quality Assurance Samples

ESH-EFA-WQ- 17.14447 — BP’RB:ur UCRL-AR-10191-16-4

LI.VL Sire 3 CuIq?1iun( t’ Sfunu(;-nng P’ug’’u’n fin the Cie’.’LI? Pit / Lund/ill Fourth Quarter _4nnual Report (or 2(1)6

Table C-i. Pit 1 quality assurance for routhic, duplicate, and held lilanli samples [or the fourth quarter 2016.

WE’ll -2325 W-PITI-2326 PITIFB Constituent u oils Routine (Nov 14) fluplicate (Nov 14) Field blank (Nov 14) Arsenic pg/L 12 12 <:2 Barium .g/L 38 38 <25 Beryllium pg/L <0.5 <0.5 <0.5 Cadmium pg’L <0.5 <0.5 <0.5 Cabal, <25 25 <25 Copper

Nnrate (as N03) mg/L 32 31 <0.5 Perch lorate ig/L 6.6 6.4 <4 lie compounds uNIX pg/L

Thiium BqL 98.4±20M 92.9± I&9 0777±231 Uranium(Ioial) Bq L 0.163+0.019 0.149±0,Olg 0.005=0.002 Thorium 228 Bq’L -0.001 * 0 001 0.000 + 0.001 0.001 * 0.001 Thorium 232 BqL 0.000 ± 0.001 0.000 ± 0.001 0.000 ± 0.001 Gross alpha Bq/L 0.142 ± 0.058 0.075 ± 0.051 0.019 ± 0.048 Gross beta Bq/L 0.071 ± 0.023 0.122± 0.038 0.173 ± 0.03S a As standard QA protocol, Irip blanks were suhniincd cith all samples in Table C-I. This quarter, all trip blank analyses were ion-detects. h Radioactivity is corrected for 1ie background rad inactivity inside the mcasurcmcrn apparatus. Negati’ e atti vity indicates that (lie sample

ci,ntancd I iI: ian hack gm’a nd j in by l aijinuni chirnn. Ratlitiacii it t’cpal in or than lie 2-sigma uncLnaini shim n is cnnsi dered to be dcl Lt i

ESII-EFA-WQ-17-14417 - BP/RB:ar C-I UCRL-AR-10191-16-4

LL:VL Sin, 30(1 Compliance.\toil imring Program lb, he (to sri! P1, 1 )anit?!i Fonrth QuiUicI._4uniaIRepori fl,, JOIn

Appendix D

Constituents of Concern and Monitoring Frequencies

ESH-EFA-WQ-17-14437 - DP/RB.ar UCRL-AR-10191-164

U .VLSilL 300 Campfücncc . iuititoring Program fi,r thu Clo.vidPu I Lun/sill FuuisJ; QLUI1L’- .lflflhl(il RL:/or( fi)I• 211115

Table D-I. Pit I constituents of concern and monitoring frequencies.

Constitueni IVOR” PCP Pit I Aricniz X Q Barium X Q fleryllium X Q Cadmium X Q Chloride X A Chromium X SA Cobalt X 0 Copper X Q Iron X SA Lead X 0 Manganese X SA Mercury X SA Nickel X Q Nitrate X SA Selenium X SA Silver X SA Sodium X SA Sulfate X A Vanadium X Q X Q Total organic carbon (TOG) X A Total organic halides (TOX) X A EPA Method 601 X EPA Method 624 X A EPA Method 625 X A EPA Method 608 X A Gross alpha and gross beta X SA Radium 226 X Q Thorium 228 X Q Thorium 232 X 0 Tritium X 0 PerhIoraw X Q Uranium (total) X Q HMX X 0 RUX X Q Ground water elevation X SA Ground watcr tenipvrature X SA tp’ X SA Spccttic corductance X SA a MonitoringfrtqucnLicsarc: Q (qunerly); SA(se,niannwiII), A (annually). h Constituentsof concernrequiredto he monitoredby WDR93-IDO(CVRWQCB,2010)

Additional ii i constitucnt.s concernrequ red In he ‘liorutoreLiby timpnsl-closurcplan (Rogerslaci fic Corporation,I990),

ESI-l-EFA-WQ-I7.14447 - RPRB jr (]CRL-AR-1019]- 164

1.LVI.SEw3(30Compliance Aioniroing Pvgani flit iL’ C/usa? Pit I Landfill h,zisth Oua,tn.Lninal 1&JJO)tñji 2016

Appendix E

Well Specification and Construction Details for Detection Monitoring and Evaluation Monitoring Wells

ESF-l-EFA-\VQ-L7-(4417 — UPREJar UCRL-AR-IOiYI-!6-4

LLNL Site .300 Compliance A!o,nto,i,rg Pmgtvni for tile Closed Pit I LwidJilI Fow-th QuarterMniu,,il Report/or 2016

Table E—1. Vell specification and construction details of tlw Pit monitoring network. Ground Elcyalion of EIe,th,n of Elevalion of Elevation of Elevalion of Surface Reference Elevalion of Elevalion of flenlonile Bentonite Filler Pack Filler Pack Uisng Well ltStl Norlliing Easling Evalnalion Evaltrntion Screen Top Screen Ilolloin Top Bottom Top Bottom Botlon,

KI-OIC Tnhs1[[nhs 427714.28 16990623 07892 1,081.94 975.42 965.42 ‘198.92 9X6.92 986.92 955.92 965.42

1(1-028 Tnbs/Tnbsl 427893.78 1699452.5% 1,10523 110723 958.73 038.73 985.23 982,13 08213 932.73 938.73

K 1-04 Tnbs1/Tnbs,, 428315.51 1699231.7 1,120.0(1 I ‘22.67 937.00 920.00 978.00 068.01) 968.00 919.00 919.00

K 1-1)5 Tnbs1f[nbs 428485.47 699057.58 1,128.86 1,13(1.86 965.86 944.86 None None 972.86 941.86 944.86

Kl-06 Tnbs1ftnbs0 427736.68 1699627.38 1,081.54 1(189.54 982.54 012.54 None None 995.54 971.54 972,54

KI-07 Tnh,/Tnhs 428199.07 1698965.54 1,106.63 1109.63 978.63 958.63 985.63 983.93 983.93 956.63 956.63

KI-08 Tnhsr[fnhsii 428373.1 698848.94 1,120.72 1,122.74 97’l.72 954.72 991.22 985.72 985.72 952.72 952.72

Kl-{}9 Tnhs!/TnhsO 428488.09 1698880.26 1,124,68 1,126.68 969.68 934.68 978.18 975.6% 975.68 932.68 932,68

W-865-2005 Tnbg1IFnbs 428990.64 1699555.36 1,272.87 1,274.87 942.87 922,87 954.87 950.87 950.87 919.87 921.81

\V-PITI-02 Tnb,/Tnhs1, 428494.39 1699912.16 I,179.3{) 1,181.30 929.30 919.30 942.30 934.30 934.30 91 1.30 91 8.31)

W-PITI-2209 Tnhs1/Tnbs0 428221.94 1700615.69 .164.05 1,166.05 919.05 899.05 939.05 929.05 929.05 896.05 898.05

V-PITl-2326 Tnhs1/Tnbs0 428241)21 169971726 1145.79 1,147.79 930.79 911.09 960.79 949.79 949.79 905.79 911)67 w-r[Tl-2620 Tnbs1fl’nhs 428473.29 1699935.03 1,177.87 1179.87 932.87 9(7.97 947.87 942.57 942.57 914.87 917.55

FS!T-PT’A-’Vfl-I 7-4.147 - flp.p R:ir UI LCRL-4R-10191-16-4

LLVLShe 300 Coinplinme Ioi;iio’,ilg Ping’ urnfur the Ck, ed Pit I LuiiiJill Pc’ it/i Qi trite,: 4nil 1it: Repin, fin (116

Appendix F

Hydrographs for All Compliance Monitoring Wells

ESII-EFA-WQ-17.14447 — DP,RBar UCRL-AR- 10191-16-4

LLNL Site 300 Compliance Mo;,ito-mg Program for the Close1 PIt 1 Landfill Faint!, Quzrte,’4,u,itaI Reponfbr 2016

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Appendix G

Field Logs for Compliance Monitoring and Evaluation Monitoring Wells

ESII-EFA-WQ-I7-13447— DP/RB:ar ______

All Ground Water Sampling Data

Target Sawple mate, 1l—OCT2016 Month Norm Qtr: 4 Norm Year; 2016

WELL 3W kI—DIC MEA INFO: S300/flWA(PIT1

DATE; 1l—Dct—2O1 LOG BOOK (DOCUMENT CONTROL) #, AAj2060

PURGE r.rnscisk’WLE METhOD: Grundtos / GRYS COfTMIHMlT PRSSENt N03—37/3u

SCREEZES IHTV). ft—tp) I0 .82 — 116.52 PWW INThE DS 115.43

c,S1t;G DEflH(nstal.ed/snuned tt—bmp) 113 .50 / 122.40 on 26—JAN—15 CASIW VCL (Gal/Time) 2.25 Dm11 TO aTER(ft—bep) 1U.02 an 14—JUL—16 1ta. . VOLUME FACtOR, 0.500 WflER IN oSri;; ft}, 1.50 CASINO b:AJ.s,ER/TCASING HC(Sfl) 3.5 1 3.02

TINE P1W.? DH______INlTIfl Ft0i RAtE (QGPN)

TIME PUMP OFF: MZASURED BYrFLOI HTER/ CRAfl CYL./ BUCKET! OTHER

TIME 0 GAL PURGED VOLUMES H TEMP C SC mu DC DTW

— I

METER SERIAL t CALIBRATED SnWLER/EMPLOYERI siingO pR (d7(t41- f/ws PROJECTt SC tr /ND SAMPLE PRESERVATION/n4 of REAGEtIT._ a is. rJ Pr INS PURGE VOL/EXESS 1120 DES?’ 0.00 I Nan. 1120, •V ‘NO TI’ LOCATIONS Collect

QC S?JIPLE IC CC LA2(S), QC SAi4PEIiE

SNIPLE ID (VERIFY): HJ—oLc./&cs’S TIME CQLLECTESi Nm. Gndfos in place of old ito. p.s4. t.AE LABLOC_NME REQUESTED MIMSSIS TYPE SA1l2LERREMARS GE cl—OW ASiFILTER 0 0 GE fl—Ole ASITRISO 2 1L P GE Kl—0lC AStIJISO 2 1L P 89 lU—Ole E300.OsNO] 1 250 ml P 03 Kl—OIC E30U.OPERC 1 250 ml P 1/3—1/2 headspace, I agitate lU—Ole £8260 3 40 mL V 11101C E0330,Rtfl 3 lL GE lU—Ole £900 I it P K1-UIC E900:FILTER a lc].—o1c £906 1 250 ml GA Pr Ki—DIC RA226 I it P Pr K1—D1C RA226,rILTSR 0 0 SB R1—D1C WQMGKETI 1 ].L P 50 fl—OIC lGncrnti:FrLTER 0 0

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REQUESTED # ANALYSIS TYPE SAMPLER REMMXS

TIME

ID SNIPLE VERIFY): COLLECTEO:

QC

SANPL!

ID:

QC LAB(S): QC SfliPt.S T1ME

X20; I IF I:, ZCCATON;

rV

&N0

mmcx VOL/EXCESS 42.43 920 tEST, prts,r ,

SMIPLE PR SERVT!OX/AT cf\REALI!Nt;

gil (L4fl PROJECT: inc

4

I ER SERIAL,., SkLER/EMPLOYER: silvagO

I j.i’ 0 qt —

‘?A- o’L% 3$ — ‘

2

-tt 91-

i’’t — it 1 qct

o’r,o 26-zr71-

z. i% usc flt3t I

I1-.!’

I9. -y CR1-’ 1%1 tiotf

TIME

0

GAL VOLUMES PURGED

na

C TEll? SC DG DTlq

TtCE PUMP

OFF

MEASURED BY( Afl CYL./ BUCKET, OThER

TIME PUMP

ON:______

rn:TIAL FLOW RA {QGfl):______

IN 3’k. WATER {ft)

CASIflG

± 2t30

(D’Th

CASING EIMIETER/TCASING sr(inj 3.5 / 2.00

DEPTh TO

ft—br) WATER(

140.20 on. 0t—&DG—1S VOLuME IACtSR: 0.500

Si

CASING

DEPTH{installad/soundod){ft-bmp);

166.50

/ 114.55

on 14-RUG—14 CASING VOL cf/TIme): i3

14.14 1 t3CJ.

ft_brig):

SCREENED

INTERVAL

HB.80

160.S0

PUMP INTAfl DEPTh: — 169.10

PURGE METIiOD/SMiPLE

HETflOO

/ Gnrndfas flES

C0NTANtNMT PREStNT: 1103—33/PSAC—6.4/H3>l000 PCi/L

DATE:

ZI—Oct—201S

LS BOOK (DODMEN7 CUIC3.) #: flJ 2USD

WELl ID:

1(1—025 AREA NFO± s300/EwrA/pIr1

Target

Sap1e

Date

lL—T—20L6

xc h t Ncrw Ctr: 4 han Year; 2026

All Ground

Water

Sampling Data

______

AL! GrDtLnd Water SapUng ata

Target Sample Date; 11-OCT.2016 Month: Norm Qtr: 4 Norm Year: 2016

K•=L I K1—04 ARZA :nrn± S300IflJtA/PIfl

11—Qct—2016 LOG 5001< D0CWHT CONTROL) I, AA32060

PURGE METIJODISAJIPLE METHOD: Gnrndfos / JVES CONTMIINANT PRESENTt N0328

scaEErn0 INTERVAL ft—bmp) 1SS.97 — 202.97 PUMP INTAKE OEPTH, 195.10 2t. CASING DEPT3(insta1.ed/sounded) {ft—bnpj 201.00 / 204.15 en 28—JM—15 CASING VOL (ea1!TIme; 21.09 xSw• “r’ ‘i DEPTH TO WATER(ft—bnp)s iS.ss on 30—AUG—16 LJ V0LU! FACTOR; 0.500

WATER IN c,.s:t{c (ft: 43.79 CASIflO OTAMEER/TcASiflS HT(ln)’ 3.5 / 2.67

FION QPM): flME PUMP CS: P I INITIAL PATE

O9TR TIHE PUMt OFF: IL*t4. HEASURED GRAD CYt. .1 BUCKET’

Tflt 0 GAL. PURD VOLCHES tH tFJ4P SC r’.’ DC DTW 131, U. I -%‘ tat oL, /-çO /67.111 Gck. 34 — 2- 72s 2S.t oT3 Iqo — 3 q.;\ tk &ovc ic,

q — 7.lo g°S 6ol,°\ Si H — 72 Z) 1st

SERIAL • CAz9w;E 0 SAMPER/EI.PLorER sI1v.90 3Db ph 1 ES / NO PRCJECfl ( I Sc: /Y*/N 534F1E PRflERVATION/AiC of REAGErfl ç44 my: Y14’NO VRCE VOL)EXCS5 20 PST 5.6 / spCDNWI H20: NO TI LOCATICH: s30

QC SAMPLE !D: OC LAB(S): QC SAMPLE TIHE: /Lfrq tIKE CDLLECTZD: SAMPLE ID (VERjFY /cko New Gntndtos in p1c of old 11ev /pUp. LAO LAB LOC NAME REQUESTED AflALYSIS # TYPE SAMPLER_RtM S GE Ki-04 ASiFILDER 0 0 GE K1—04 AStThISD 2 IL P GE AStUISO 2 IL P ES Ki—04 EJC&Q:IOJ 1 250 ni F ED KI-04 E3O0.pER: 1 250 1 F 1)3—1/2 headspace, agitate ED Ti—Cl E260 3 40 rL ‘I Es K1—04 ESj3Q:R,M 3 it C GE K1—04 E9CD I P GE K1—04 EOD,rILTER 0 0 GE Ki-04 25D ni GA Pr 1<1—04 RA226 1 1L P Pr Ti—Cl RA126:Ft[TER 0 0 BS Ri—al WGHGMEfl 1 IL P Os Ki—04 WCMGMETflFILTER 0 0

Ravisiont 012512315 Paet of 1 ______

All Ground Water Sampling Data 14

Target Sample nate: 10-NOV-2016 Month: Norm Qtr’ 4 Norn Year: 2016

WELL ID: AREA INFO; SJOOIEWVAIPITI

DATE; 10—Wov-2016 LOG BOOK {000UMENT CONTROL) #: AAJ2OII

PURGE METItOD/SAMPLE METHOD’ Orundfo. / 3Vfl CONflJ1INANT PRESENT’ 1(03—20

SCREENED INTERVAl. (ft—bmp t 185.97 — 201.97 PUMP INTAXE DEPTH: 195.10

CASING DEPTHnsta11ed/soundcd) ft—bopJ 201.00 / 204.15 on fl—JAN—IS CASING VOL (Gal/Time), 21.61

DEPTH ft—bmp) : on 11—OCT—16 - VOLUME FACTflRI OAOO TO WATER( 160.4] -

WATER IN CASING (ft)’ 43.24 CASING OIAHETER/TCASING HT(in): 3.S / 2.67

TIRE PUMP ON; INITIAL FLOW RATE QGPH)

TIME PUMP OFF’ MEASURED GRAD CYL,/ BUCKET! OThER TIME 0 GAL PURGED VflIjTMES PH TEMP C SC 1W 06 R4 0Th I i-j f(°° lo.( &3. 1 (63 I 2- — icj I I j,j 24’1- ii. if (U_ — 3 g zo.I, jz. S ,‘s- / piq — 713 2p.t GZ-7. ,c’c iTh — 7-H 1-L I, —

METER SERIAL • CAL!flRATED SAMPLER/EMPLOYER (7 t. 3E140 PH 67tg’-1’ /ç/NO PROJECT’ f SC I YE4’NO SAMPLE PRESERVATION/fliT ofi REAGENT2 flY / YES NO PURGE VOL/EXCESS H20 OESTi\64.B3 / S30çDW4 Ff20: YE ND TF LOCATION: 5 QO SAMPLE ID:fl—04 QC LAB(S); OCLASS-BAZ QO EAMPLE TIME

SM4PLE ID (VERIFflI /tt-oq/ tOES T 11W COLLECTED; New Gnindfos in placo of old 1110v pUp. LAB LAB LOC NAME REQUESTED AflALYSIS * TYPE SNiPLERRE!tAPXS so 0—04 E200.ItFILTER o o 0? K1—04 E200fl:V 1 SUG niL P

Revision’ lDflA/2D15 Page, 1 of I Li C F C C C C Cl Fl C (3

Fl UI C 0 0 H V C Pt a I. 0 I P a I C U Cl 0 U F. C F. E -. U C ‘C 14 I *4 p. U z U z Co In *4 C UI N C. F. U ‘C U 0 Li m E. I \ F. V UI F. C N C’, 0 a p. a Li = F. C a C C — 7 4 *4 t ‘. *4 z a 0 -• n Cl 0 •1 U F. a ‘C = a LI U a. m F. E UI C •1 ‘C”” npz 40 a 0 C S C UI .4 C E M Cl 0 F. o C, C. U I C, I. * t -4 • 0 L ‘C C C p 3- I. 0 C 0 a C 9 I ‘3 -4 a a 0 D 0 a —14 p. a F. 0 a U t I’ C -4 “I - ‘I d I — C a 0 4J WI ¶ C I, — .. a -*4 K Li - N C 4- C” o . I, 0 z C •-0 a’ = C. t L fl’ F. 0’ C -- C E “ 14 a p. 0 F. n x hi t1 -4 -4 U z 14 ‘C *40 II 14 [1 z = -4 *4 C, -4 F. 14 C 0. . 1 C, U ‘C U p. UI U 0 F. o ‘C ______

All Ground Water Sanpling Data

target Sample Oate: 1O—NOV—1016 Month, Norm Qtr: 4 Norm Year: IDLE

WELL ID: fl05 RESA INFOt s30013Wn/PITL

DATE: 1O—Nov-2016 LOG BOOK C DOCUMENT CONTROL #: AA 32077

PURGE METKOD/SKMPLE METHOD: OP / IVES CONTAMINAnT PRESENT, FREON 113—19.0/N03—37

SCREENED INTERVAl {ft—bmp): 165.20 — 196.30 INTAXE DEPTH: 0.00

CASING PEPTH(Ihstallad.’nounded) Cft—bInp) z 104.00 / 106.30 Co 2I—N0V04 CASING VOL Gal/Time) z 11.30 ff .u Sç.

DEPTH 70 WATER(ftmp) 174.S4 on 03—AUG—16 VOLUME FACTORS 1.020

WATER IN CASING (ft) 11.16 CASING DIMIETER/TCASING HTIInt S / 2.00

TIME PUMP DNt yq,ç INrTIAL FLOW PATE (QGPMh I Cl

TIME PUMP OFF: KEASURED METER C}tAD Cit.! SUCKET/ OTHER

TIME 0 CAL PURGED VOLUNES PH TEMP C SC 1ev 00 - DTW Po/nSfJ o;c IL I t°i to t9 iq S cc_ z 70Z doW ,c /S: ,e,,c — 3 80 Zo.Z &zr,3 t,9t( /07- — 79 w’- /cN

Ibil — 7,t (St

METER SERIAL # CALl TED SNIPLERJEMPLOYER: silva9O pH 6i /NO PROJECT’ \. i4o SC YE /N0 SAMPLE PRESERVATION/AMT f REAGENTi AA niV YE /N0 PURGE VOL/EXCESS 120 DES?t 34.15 / s]oo—4m4

H20s /110 TF lOCATION: Iwo .-

QC SAMPLE ID: OC bAa(s); DC SAMPLE TIME:

SMPL ID (VERIFY) kI.cI S - TIME COLLECTEU: - /0 7

LAB LAB_LOG_NAME REQUESTED AJIALYSIS S TYPE LAMP LERREMABXS GE (1—05 AS FILTER o o GB K15 ASTHISD 2 lb P GE (1—05 AS U! SD 2 lIP Ba RI—OS EJOC .0tLIO 1 250 ml P as (2.05 E300.0:PERC 1 250 CD]. P 1/3—1/2 headapace, I agitate OS (1—05 E0260 3 4OmLV Os 1(1—05 EO330R+K 3 1LG GE KI—OS E900 I 1LP GE 1(1.05 E900,FLLTEP 0 0 GE 1(1—05 ESOS 1 250 ml GA Pr 1(1.05 PA 226 I a p Pr K15 RA2I6iFILTER o o OR K105 WGHGMET1 1 lb P 03 K1O5 WGMGNET1IFILTER 0 0

SLJ- o -LL IAi O’RLfl 42 0IL_1— fork

Revision: 1D/29/201S Paqe: I of I ______

All Cround Water Sarpling Data

Targut Sample Date, 0&—OCt—2016 Honth; Norm Qtr± 4 Non lear: 2016

WELL IDi K1—0 AREA INFC S]OO/EWFA/PITI

PATEi 06—Oct—2016 lOG BOOK (DOCUMENT CONTROL) #: AA32059

PURC HETECD/SAMPLE METhOD’ PB / URSA CONDANINAET PRESENTi 3>100OpCi/L

; — SCREtIIED INTERVAL ( ft—ba,p) 107.35 117.30 INTU

CASiNG DEPTMhinstailed/sounded)(tt—hmN 115.00 / 117.30 on 19—NOV—84 CASING Vol. (Gal/Tine)z 0.00

DEPTH TO WATER(ft—bmp)t i17.00 on 14—3UL—1 tS.fl_. VOLUME FACToR: 1.020

W&TE IN CP.51N (ft)z 0.00 CASING DI?thETER/TCASING HT(in): 5 / 2.00

FLOW RATE TtH PUMP ON: INITIAl. C0GPH)

:nqE PVNf CFTi______I4EAS.’flED Ey,r_nw iTER/ Gt CIt.! BUCKr/ OnER

Tl 0 GAL PLIRQD vnrzHEs pR TEMP C C 00 DtW

— F

METER SERIAL # C?.LIfl £0 SAMPLER/EMPLOYER’ stlva9O ES NO PROJECTt JENO Sc ES C SAMPLE PRESERVAflON/MIT of REAOEttt A -Sn. ES NC PURGE VOL/EXCESS 2O DEST; 0.00 / None E2O TE LOCATIONt Collect

QC SANFLE IDt QC LMS): OC SfllPLs TINS:

SANPLS ID (VERIFfl; k’ TIME COlLECTED’

LAB LAfl_LOC_NANE REQUESTED AflALVSIS # TYPE SAMPLER_REHAflS PS Kl-O6 E300.OtPERC 1 250 ml. P 1/3—1/2 headpace. & agitate CE Kl-06 E906 I 250 DII CA

Ping. Ca te/fln I ti/A sAnce est_n.jln.. — Purq VaLuza, 0 qal. Revision; L0/28/20l5 Page: 1 of 1 ______

All Ground Water Sampling Dna

Target Sanle Cite, 17—OcT—2016 Month: Nern Otri 4 iorr Year’ 2016

Wt_L ID, 11—0’ AREA INFO: 3D 0l WFA / PIT’

tATE ± 17-Oct.2016 L)Z DC1c {00Ct9E24? CCtJTROLI $, AM 2063

PtRSE HETNDDISMPLE flrrxOD: DY / 3t’ crn’tInIT PRZSrHn H03—34

&CREEt INTERVAL (ft-tp — l5l30 :NTAn DEPTIIt_ 0.00 •1 CASINS DEPTH.in,ta11cd/oomdedJ Ct—bmp 10.flO I 15’ .20 on fl—OCT—IS CASIUG VOL (Cal/Time): 6.35 &S kAsu —

DEPTH TO WATER(tt-blp)l 145.33 on 09—AUG—IS 14S VOLUME FACTOR: 0.826

WATER IN CAS1U fl: 7.60 CASING OIMIEIER/TCASIUG HT(in): 4.5 / Lao

ON: TIME PUMP INITIAL FLOW RAfl (QoPMJ I

TIME PUMP OFF; MEASURED BYj/ GRAD CYL.! BUCKET! OTHER

TIME 0 GAL PURGED VOLUMES oil TEMP C Sc lW DC DTW

iw1 i4 — 1%

hits — /5 L 2r GI3 — VS I Hco9 - ifl — .3 (,% 2% \\2A — (‘LX 7O V (9C \\1) — 71,L p 7fl METER SERIAL 4 CALlS TED SAMPLER/EMPLOYERs ( •tlva9O pH 2•______TIC PROIECIt 3flC V SC ES NO SANPLE PRESERVATIOII/NIr U REF5EKT: A_lLG, tV YES ND PURGE VOL/EXCESS 120 DESTi G300—DRw4

120’ YES NO TP LOCATIONI £500

QC SA)PLt LA3(Sji OC SASflE Tint:

SXPL1 It (VLRLIE3 fri. /-cfl - TIME CLLEtD 11;q

LAO LAS_flC_NA.ME EQmS?ED MIAflISIS I F £ AMPLER_RflUiRES R1—07 AS,FILTER C 0 CE ri—fl, AS:TNtSO 2 IL P GE cl—a, AS;UISD 2 IL P SB ri—c, E300.0;eiC) 1 25 l P

00 ri—c, - E300.CIFERC 1 25a 1 P 1/3—1/2 headsraa, agitate SE E8260 3 40 EC. V SB ri-_a’ EJJazR+H 3 IL C GE K1—07 £900 1 1L P CC Ki—C7 E900:FILTER C 0 CE £905 1 2SD l. GA Pr Rk226 IL P PT fl—07 RA226tFILTER D 0 9 wcc,’sT1 1 1L P Ba fl—C7 cH5MzTisr:.TER 0 0

Wzo o

pr/Ør

Revision’ 10/20/3015 Page: 1 0E 1 ______

Ml Ground Watcr Sampling Data

Target Samp’e Date, 31—DCt—2016 Honthr Nonp Qtrs Nor,. Year, 2016

KELL IC± -- AREA rNrol SJCQISHFR/FttI

DATE’ 31—Oct-2016 LO FR DQCWEIt CUNTRDL Au AAflOlO

PURGE Hnh1oD/SMFLE HETIm± OP I JVtS CO?fl&IIffiu1? PRESEtn, rX 11]—37/03-36

SCREENED tHTERVAt ft—bw) L41 -22 — 161 .fl UITAEE DEPTNi 0.00

Z CASING 0EPH{1flsta1led/smcded II ttpj 161.00 / 170.32 cc 31-OCT—fl CASING VOL (Ca1ITie) .01 6-J K 3w

DEPTH TO WATER(±t-brpj 10.1I a, O4—AUO— 3 v:LUNE rAcTa: 0.826 z&.q

WATER K CASINO ft 9.9 1039 cA:nc OIMInER/TCASINC IiT(in) I 4.5 / 2.02

TTPZ PLMP SN: I Ki::A. FlOW RATS (CGPN CD.

TIRE PUW CFF: HEAGUBED GR Cm.’ BUCKEr/ onc ETER/ flRE 0 CAL PUBCE VOXPIS PR TEMP C SC DTW cilia 1 ?iD lo.6I GZS /&3,S ? 4 093,} — j7,6 2 TG 20, 23,7- c( I cVis — G.q 3 ‘zc Zo,1 zq qj I s-O_ is’f 7o sn, Ot,5t1 6Zzt tic

MET ER SERIAL S SAiPLSR1UWLOTR: / .t1va90 Fl]:____ &ZiMil— -nv I /

SC ! /NV sn’.nE PRsVAT1/MT REStfli V YE INO PURSE VL/SXCtSS RIO DESTNZ4.02 L.s(Go—0n4 U22: 7 /IIC TI LOCATI SN 53 e—

G SAMPLE QC ASISI OC SAflLE TIMEI_

SMlflE ID (‘tMFY) I. Icl-Dc/ :sj&5_ TI flE C0LLEflE /oo3

LA LAS FCC ME REQIJESTEC NaTSxS a TYPE S).MPLER_REMAzS GE AS fl a CE ASCtRISQ 1 IL P GE ASiUIS0 2 IL P ha tIOQO sNU) I 25C ‘U P OS EQ0.0’PSRC 25U ml P 1/3—112 hsadspace, 4 aqtate ha E0260 3 0 mL V Ba £S330iB+] 3 ILG C9C0 1 IL P Cs RI—OS E900IrILTSB 0 0 CS Ri—OS E906 1 250 ml GA Pr Kl—O RA226 1 it P Pr p3-GB Ra32SiFILTER 0 C BE 1<1-00 WGFICFItTI I IL P BE X101 WCNCKETIiFILTZB 0 0

)4r L (roLc S?”45 b 1€j0 Is1c tt’i oCu&np. to,,c,

Revisiont 10120/2015 Skj\ fijO Page: 1 of 1

sC-w’p&i ______

All GteLind Water Sampling Oataç

Target Sample Date; 0L—DEC-2016 Month Norm Otrt 4 tlonu Year: 20

WELL IS’ 111—00 AREA INFO: s300/rWrA/PITI

DATE; 01—Dec—2016 ICC BOCK (OOCUHENT CONTROL) #; AAJ 20 5

PURGE ?tEZICC/Sfl’&LE METHOD; Cr / JVfl—- tflAMIIM,r PaESSN; 113 265/OJ 34/floe 15./

SIEfl IUTERVAL ( ft—brp) 143.32 — 160 32 IITA5E tEflE; 0.00

CASING Esp:E(inst11ed/sounde)(ft—bcp: ‘60-00 / 170 .32 31—OCT.-05 CASJII3 VL al/Tie); a-so

SEPT11 O WATER(ft.-b’N 15.13 on fl—OCT—iS ‘Sq. VOLUME FACIOR’ 0.826

WATER IN CASING Ut): 1D29 CASING DIAMETER/VCASIHG RT(in); 4.5 / 2.02

TIME PUMP ON’ INITIAL FLOW HATE {QGPH): i *

t’s ru4p orr: 3t C PIASUHZS Bk:rIfft/ CRAO CYL / flUCIT/ OtHER

PIKE C GAL PURGED VOLUM!S VM TEMP

p o.c zz. V cz I

— ‘7G -‘ 31q — pc.g I -3 1 & .2o tiqg I jô L2Li1

H — q.t-( 709 f,w,r. ‘19 / I!L — 2? o

METER SERIAL I CAL I B RATED SANPLR/EHPLOYERs •iivaô I PH (,t,q1- S/NO PROJECTI ( 3fl40 SC Y4S/NO SAMPLE PRESERVATION/nIT f REAGENT; A47 my v4sio PURGE VOL/EXCESS 1120 DES 2.5D / s3oo,a4 1i20; YdS/t40 TF LOCATION: Th-ao .__—

QC SNIPLE 10:111—OS — QC LAB(S): UCABS-RAK QC SAMPLE TIME;

tLOC&f S.MPLE III (VERIFfl: TIME COLLECTED;

LAB LAB_LOC_NA)4E REQUESTED ANALYSIS # TYPE S M4PLER EMARE S 83 1(1—00 E200.BiBA 1 500 ml, P BB 1(1—00 E200.G:FILTER 0 0

Svk Oç ufr Hao ca Th I thL 4o j/J cpt

*

Revision: 10/20/2015 Page: 1 of I

Revsizn: 1012fl12015

Page± I 1 of

&-

c,(f 3c

BE In-OS E200.8:FILTER 0 0

SB

Kt—OO E200.e,DA 1 500 mL P

LAtLOC_HM4E

LAB

REQUESTED ANALYSIS #

TYPE

SAMPLER_REHWS

-

- fti-o’ SAMPLE

ID (VERIFY): TIME COLLECTED, -

QC SANPLE IO:W1.08

QC

LAB(S)’ -

QC DCLABSflX

H2O

71 LOCATICIIi \saoo

PURSE h23 5300-$ION CEi VOL/ExcEss I fl.50

SC SAMPLE

REZEh7 PRESERVATICII/Nfl\of

pH

i.

r 0 t’ PROJECT’

3!Nq 1i

METER I SERIAL SAMPLERIEMPLOTER • t LvagO

1&6 rsz rzt I — ‘zo.

13V} t7.-4 — w,c 6Zt

z!. 1.(3

3 — S izc 2O:; I

&‘4. I

,4,pa4

3 .&3 t 3it t°.5 ,i’J.t

,zs

•tq I

0

TIME

CAL PURGED VOLUMES CS TEMP C SC my OG DTW

TIME

PUK? OFF

fSASURED HEER/ EY±FLO BUCIIE?/ / GRAt Cit. OTHER

(tj1,

TIH PUHV rnw INITZa TE Q=SPM}t ON;

WATER

IN (It)’

CASING i0.2g CASING DIAJ4ETSR/TCASING St(±fl)i / 45 2.02

DEPTH TO WP.TSR(ft—bmp): l5’.7 i1_flC_’S nfl VOLUME PAETDR, • 0.826 C 1

CASING DEPTIf(instglled/sotlnded)(ft—binp): / 169.00 170.32 CASING on 31—OtT—85 k3c, VOL (Gal/Tirne)t 8.50 r

—

SCREENED INTERVAL (ft-brnp) 143.32 168.32 INTAIE DEPTH 0.00

PURGE

Gr

HETNOO/SfllPtE / JYSS METHOD CONTNI!flMfl ± PRESENTt 3 34/TVOC 15-1 2fl/H03

0B—Dec—201S flOG BOOK cr:)cn COSTROL) It al 2089

WtLL ID;

PdEA IIFO: P / / 0 Si LW?R G 1 IT

Tarcet Srp1e Ca,e: 08—CEC—2016 Honth; NcrrQtr; I Year: 2016 :oz,,

3 AU

Crnd water

SUng bata

______

______

______

______(TF/No ______

All Ground Water Sa,wling Data

Target Sanpie Date: lfl—OCT—2016 Month: Norm Qtr, 4 Norm Year: 2016

WELL TO: x1—09 AREA INFO: S300/EWA/flfl

DATE: lg—Oot—2016 LOC SOCK DOCUMENTCONTROL) t: AAJIOEI

PURGE METhOD/SAMPLE METHOD: CF / InS CONTAMINANT PRESENT: FREON 113—120.0

SCREENED INTERVAL (ft—bmp: 157.30 — 192.30 INTAKE DEPTH: 0.00

CASING PEPTIiUnstal1ed!sondedI(ft—bmp 19200 / 194.10 flu 05—NOV—15 CASING VOL (Gat/Time ± 23.16

DEPTH TO WATERCft—bzp) z 165.97 nfl 05—AUG—16 VOLUKE FACIOR± 0.126

WATER IN CASING (ft): 28.03 CASINU DTAJIETER/TCASIHG NT(in)s 4.5 / 2.00

TIME PUN? ON; INITIAL FLOW RATE (QGPN)*

TIME PUN? OFF: /‘ ¶S MEASURED GRAD cm. / BUCKET! OThER

TIME 0 GAL PURGED VOLUMES oH TEMP C SC OC 0Th — t-b’i Mck.o toaD 1L’4 ‘‘\ 9’k I 2_PM ¾(ck5 (OLD — t.4’tt ‘Z Ift’6 1oo — S ht .t ,q’5’S (oqt — 7.G7, 91 (4t% ‘bo (Ut\ — &o (,q%.Z —

METER SERIAL $ CALIBRATED SAJI?LER/EXPLDYER .ily4p_ I H 7H’ PROJECT: 3E140 / SC I frfl/No SNIPLE PRESERVATION/MT c4EREAGENT: / AJi PURGE VOL/EXCESS M20 DESTk 69.47 / 2’O0—Dlüm Ff20’ S/ND TF WCATTDN: boo .Z

QC SAMPLE ID: QC LB@J: DC SAMPLE TIME: lc{-09/3ucJ SAMPLE ID (VERIFY TIME COLLECTED: 0cc LAB LAB LOC NAME REQUESTED ANALYSIS S TYPE / SAMPLER_REMAflS GE ,cI—09 AS:FILTER 0 0 GE KI—09 ASiTHISO 2 it P GE EI—09 AS±UISO 2 it P DO 1(1—09 EJ0O.0:NO3 I 250 ml P OS XI—09 EJOC.O:PERC 1 250 ni P 1/3—1/1 headspase, £ agitate SB K109 E5260 3 40 nit V DO (1—09 EB330:R+H 3 IL G GE <1—09 E900 I 1L P CE 1(1—09 ESOOrILTER 0 0 GE K1—09 E906 1 250 mi. CA Pr K1—09 RA225 I IL P Pr (1—09 RA226:FILTER 0 0 Ba K109 WOMOKETI I 1L P OS (1—09 WGKGMETI:FLLTER 0 0 9aL

Revision, 10/25/2015 Page: i of I ______

•1•

— .—-.

All Ground Hater Swpling Data

Target Sanpie bate: 14—H0V—2016 Month, Honn Ott: 4 NDrm Veari 2016

hELL Z2: W—PZr1—232& ?RZA U4FO: S3OOIWfl/PITZ

DATE: i4—ov—20I6 LCG EOOX (DCCUHEKT CItROLI F; AAJ 2071

puRcr HrNCC/SAi42U MflhlaE: / 3fl CCI{TNCKflIT PEESENT

SCREENED !NERVAL (ft-p): 217j0 — fl7.02 IIIAEE DEPTh’ 0.00

c3:us DEfl3 instalIed)sLadedI ( ft—b 235.12 / 21 .42 on 09—oct-07 SASINC Vat {Gai/:i 54.63 cc L, I” DEflN ro WA:ER(t—hp) 183.56 Ca 06—OCT—16 VOLUKE FAZTCR: 1.020

WATER :N CASING (ft): 53.5 CASWG SIA.METER/XASIN IC(in): 5 I 2.00 is- o IHE PU14P 0!i: 1022 INfTRL flOW RATE (Q=GPH)

TIME rum’ OFF: MESURLC EY GRAS ZYL. I Bu:xrr/ OThER

TIME 0 CM. PUAGEt VDLDMZS pH TEN? C SC r.V 00 (09S to ç’t 9 — cc Tho ¾-Vt \& I

U4- — ltD 2-Ri t2, p,q% I nc 7to r’ — 3 tti-( 7S3 tf I\’sL .3d 7zs, ,q — :____ L9

i13’\ — 77 zi.s z’L% IqcE

I______

METER SERIAL f CALThRATtD SIUWLERIENPLOYER .iin9O I pH, /)10 PAOflCTI ( SC YE )O SNWLE pRs5EavA7:OI/&’rT xEAGflT’ ms YE ‘0 PURGE VOL/EXCESS I!20 DES 163.99 / fl5—&,c 420: 1 /)10 TF LOCATJDN: 7t

QC SM4?LE nnw-P1r1—7BT PITIPB Q I.AR( S : GEL, acz.kss—Rax QC SA’IPZ.E T:nEs I ‘f0

SM4PLE U VERIFfl: L. t\I_Z’fl.b 13ts3 ,1q4 f LAS LA SL0CfiAE RZGLjSrtD ANAlYSIS • nfl REMARKS GE W—PITI—2316 AS: FILTER o a IIT1FB F ILTER a a GE H—Pfll—7BV AS:VILTER o a GE W—PITL—2326 ASITIJISO IL P CE PIT1FS AS;TNISO 2 GE w—pIT1—,By AS Tulsa 2 ILP GE PITIFO AS:UISO 2 IL P w—PIfl—23Th ASlIJISO 2 IL P GE W—PITL—NY AS UJSO 2 IL P w—rItl—,BY t j a o .0 HG 3 1 250 itil P SB W—PIT1—2]26 ES a a a 1103 1 250 ml P SB PtflPR £300,0;H03 I 250 ml p RB W-PIT1—78Y E300.0IPERC 1 250 ml p 1/3—1/2 headspace, & agitata BB W—PITI—2326 EJ0Q.OiPEBC 1 250 ml P 1/3—1/2 headspaca, agitate BB PITIFE E300.QIPERC 1 250 ml. P 1/3—1/2 headspace, agitfle BB pnIrB £0260 3 4OmLV ED W—PITI—78Y E0260 3 40mEV RD W—PITI—2326 E€260 3 4OmLV RB VIT1FB EBJJC RN 2 11.0 Efl W—PIT1—2326 EGJJU:RH 3 1LG RB N-PIT1—78Y E0JJO R+N 3 11.0 GE W—PIT1—2326 £900 1 ILP PIT1FS £900 I H.P

Revision; 10/28/2015 P.Iof 2 ______frsiuo______

All CroI4n Water Sampling Data

Tarqnt Saip1e Date D5—0CT—20i Month, Norm Qtri 4 Hor-m Year; 2016

ht-L ft w-pIT1—22fl AREA IflFOi S’DQ/EWflIFLTJ

DATE, OS—Oct—2016 LtC DQcwair ccTuL) Is AA205I

2tSE HEteOD/SAJ4cLE HEOCD± SF I Ins CQtNIIHflT FRESEtIT:

SCREEUED SERVAt ft—in 241.10 — 267.30 PUMP IHIAKE flS.20 i CASING DEflH{ irsta11ed/smJfled) { ft—bqij I 746.00 / 268.20 on 11—KAT—06 CASIR VOL Go/Tte) 50-40 f’ cz.

OEflK TO WATER ft.oI I 210-59 On 2i—StP—16 21k. c VOLUtE FACtORs 1.020

WATER IN CASING ft)i 49.42 CASWG DIN4ETER/TCASING flT(iTi 5 / 2.00

TIME PUMP 0:1; p IN:nAL FLOi RATE QPM) it

T:N rUMP cFr: KEASCRED aLl SUCKET/ CTXER

TIME 0 CAL PURGED Vtt’JMES nil TEKP C SC CC 07W M.O( frrohc 5h#’ o’itq C.3C.3 it”. I -Ii

M9, — lot t. 1.n.. i’i .1 Si.c. vi ‘V IObt — _ 3 4( (7.o 17I nc i aol — to flO It’ tco jt”. jj fl•r ‘3g. I

KEtER SERIAl. $ CP.LflRATD SNIPLER/ENflOYER s ilva9O Pu &ing,- flfrc PRUJECT; 304? 3GIV 3m4z SC; SMPLE FkE5EflVATIflfk9T ye TEAENr PURGE VUL/flCESS 120 CEST, 151-19 / Nato H20 I ‘ ‘NC Tr WCATIOTh Collect

— -

DC SM4PL! IDL — DC LaI5); -- QC S1fl.E IKEi

SMIPLE :b VERIFY) I LI-Mi ?7’f /s45 TI ME COLLECIED; inn I AB_LtC_M4E REC&’ESTZO MIALYS: S TYPE GE W—fli—229 AS: FILflR 0 0 CE W—F1T1—2209 AS 0150 2 IL P W—PttI—2209 E300.OitIOJ 1 ThU ml. P 0Th W-P1T12205 EJQ.QsPERC 1 250 ml P 1/3—I/I headpace, £ agitate w—piTl—,2Og C624H00 J 4QItgV CE W-PIT1—2209 E906 I ISO nI GA

R€ViBiOfl: 10/29/2015 Paget 1 of 1 ______

All GrDUF,d Witer Sampling pata tJy

Tarat Sample Dates DS—0C?—201& nonth: orw otri 4 Non, year 2016

flL IC: bt—Pttt—2620 MiEA Illyc: 53001EWrA/PIT1

DATE: 06—Oct—20L6 ILS BOCK (QOCIJHENt C0117R04 ‘I M32053

nrnG MEtHU/SkwSLE HSHGD: Gnindfo. / 3VtS ONM4INAbt PRESENT:______

srEIIED VtERVM. It—btF) 24720 — 262.20 PUMP rIIrAlcL DCPTh 254.97

CASING DEPTE(instailed/scur.ded) ft—teN ± 160.32 / 262.50 01-SEP—12 CASH VOL (CalJTi): 23.61 tcct DEPTH TO WA?ER(ft—b.!pI: 234.27 an fl—Jut—iS VOLZNE FACTOR: 1.020

WNeR IN CASING jftj 1S 05 2.’ 5 CSIHO o;A1wTtR/vcpa:m HT(Ifl) 5 / 2-00

Tfl’I PUMP ON:______fl{ITtbL FLOW PAE {G=G?M) lb I

TIME PUMP OF?:______flEASIJREO OY:FLO$ HEER/ GRAD CYL./ BUCKET/ OTZR

IME 0 CAL ?ZRdEv VOLUMES t TEMP C SD DC (°3 I lL I

jlI — Z. 712 7’-L ‘%n YroL Slj jt \ (

it° ‘I. D it.c lch.i ;7C 3%,i, — 1.L 1I.S jl

SNiP ER/U4PLDSR siJ.v.90 PR0JEC’ 3 30rv SkMPLE rnssnvAnDtc/nT of REAGOIT: A.flo.. PURGE ‘tr./sxcss& 120 DES?’ B5.33 / Pfl7—SPC TF 1.OCAZ1N I Pfll—SJIC

DC SANPLE ID 00 LAB S) V SNPLE TIMSi

SNPLE fl VERIPV): ñPd I.&t0/3uS ,:ns cau.scnp, -

LAB LAB tOO NAME flQUtSTEO MALYSI5 TIPE SAMPLERREWxS N.-PITI—2620 !300.0:PERC 1 250 it P t/J—1/2 hodspace & agitate TS W-PIT1—2620 E624N00 +9 40 mL V CE W—PIT1—2620 E905 I flO i1 GA

Revision, 10/28/2015 Page: 1 of 1 ______

Al-i Ground Water Sarpllng Data

Target Sample Date, 26—OCT—2016 Month: Norm Qtr: 4 Norm year: 2016

WELL ID: W—965—2005 AREA INFO’ s30a/swyA1065

DATE: 26—Oct—2016 LOG 000K DOCUMENTCONTROL AA32D69

PURGE METHOD/SAI4PLE METHOD: PB I ORSA CONTANINANT PRESENT,______

SCREENED INTERVAL (ft—bmp) I 332.30 — 352.30 INTAKE DEPTH: 0.00

CASING DEPTFI(installed/sounded) (ft—bmp) 351.00 / 3S3.20 on 11—DEC—03 CASING VOL (Ga1JT1n€ 24.36

DEPTH TO WADER(ft—bmp): 329.U on 17—AUG—16 ‘!i2. ‘?-TL VOLUME FACTOR: 1.020

WATER IN CASING (It): 23.91 DIniETER/TCASING HT(in): 5 / 2.00

TIME PUMP OH’ — INInAL FLOW flTE (QGPM)t______

TIME PUW OFF; MEASURED BY:FLOW METER/ GRAD cm.) SUCKET/ OTHER

TIME 0 GAL PURGED VOLUMES pH TEMP C SC 00 nW b — — — th1o ‘i io.q zc —

METER SERIAl .CALIOflTED SMPLER/EHPLOVERI st1va90 N PH G1-’\’-fl 1 PROJECT: f’s. SC frESNO SRNPLE PRESERVATION/Ant of REAGENT: nv PES4ND PURGE VOL/EXCESS N20 D4T: 0.00 / 5300—oRm,’ 1(20: ¼Efr/N0 TF LOCATXON: \ 5300 — QC SAMPLE ID:W—fl5—64T QC LAB(S): TALSAC, OEL OC SANFLE TIME: I (1i SAflPLE ID (VERIFfl: ? TIME COLLECTED: LAB LAtLOC3IMIE REQUESTED ANALYSIS TYPE SA}iPLERREMAEXS TS W—HS5—64Y E300.OiPERC 1 250 alL P 1/J-1/2 headpace, & agitate TS W—S65—2005 E300.a:PERC 1 25DnLP 1/3—1/2 headspacc, & agitate GE W-065—64Y E906 I 2SOn1GA GE W—865—2005 E906 1 25OmIGA

Revision: 10/28/2015 Page: 1 of 1 LCRL-AR-10191-I6-4

SIlL IL VL 300 Compliance 3ThnUnuig Piugicim lb; TileClmed P111 Land/ill Fuiirtij Oi,cz,vcr.4ij;,iuzIRtpo,; fin 1016

Appendix H

Statistical Limits and Graphs of Ground Water Measurements

ESII-EFA-WQ-I 7.14447 — DP/RB:ar UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area GW Elevation (Feet)

Background Monitoring Point K1−01C GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 1 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area GW Elevation (Feet)

Detection Monitoring Point K1−02B GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point K1−04 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 2 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area GW Elevation (Feet)

Detection Monitoring Point K1−05 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Crossgradient Monitoring Point K1−08 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 3 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area GW Elevation (Feet)

Crossgradient Monitoring Point K1−09 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point W−PIT1−2326 GW Elevation (Feet) GW Elevation 940 960 980 1000 1020 1040 1060 940 960 980 1000 1020 1040 1060

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 4 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Field Temperature (Degrees C)

Background Monitoring Point K1−01C 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 5 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Field Temperature (Degrees C)

Detection Monitoring Point K1−02B 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point K1−04 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 6 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Field Temperature (Degrees C)

Detection Monitoring Point K1−05 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Crossgradient Monitoring Point K1−08 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 7 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Field Temperature (Degrees C)

Crossgradient Monitoring Point K1−09 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point W−PIT1−2326 10 15 20 25 10 15 20 25 Field Temperature (Degrees C) Field Temperature

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 8 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Arsenic (ug/L) Above RL Background Monitoring Point K1−01C Below RL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 9 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Arsenic (ug/L) SL=15 Above RL Detection Monitoring Point K1−02B Below RL SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=16 Detection Monitoring Point K1−04 SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 10 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Arsenic (ug/L) SL=18 Above RL Detection Monitoring Point K1−05 Below RL SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=17 Crossgradient Monitoring Point K1−08 SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 11 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Arsenic (ug/L) SL=16 Above RL Crossgradient Monitoring Point K1−09 Below RL SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=14 Detection Monitoring Point W−PIT1−2326 SL Arsenic (ug/L) 0 5 10 15 20 25 30 0 5 10 15 20 25 30

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 12 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Barium (ug/L) Above RL Background Monitoring Point K1−01C Below RL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 13 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Barium (ug/L) SL=26 Above RL Detection Monitoring Point K1−02B Below RL SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=32 Detection Monitoring Point K1−04 SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 14 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Barium (ug/L) SL=43 Above RL Detection Monitoring Point K1−05 Below RL SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=49 Crossgradient Monitoring Point K1−08 SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 15 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Barium (ug/L) SL=51 Above RL Crossgradient Monitoring Point K1−09 Below RL SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=46 Detection Monitoring Point W−PIT1−2326 SL Barium (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 16 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Beryllium (ug/L) Above RL Background Monitoring Point K1−01C Below RL Beryllium (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Beryllium (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 17 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Beryllium (ug/L) SL=0.5 Above RL Detection Monitoring Point K1−02B Below RL Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Detection Monitoring Point K1−04 Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 18 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Beryllium (ug/L) SL=0.5 Above RL Detection Monitoring Point K1−05 Below RL Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Crossgradient Monitoring Point K1−08 Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 19 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Beryllium (ug/L) SL=0.5 Above RL Crossgradient Monitoring Point K1−09 Below RL Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Detection Monitoring Point W−PIT1−2326 Beryllium (ug/L) SL 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 20 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cadmium (ug/L) Above RL Background Monitoring Point K1−01C Below RL 4 4 3 3 2 2 Cadmium (ug/L) 1 1 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 4 4 3 3 2 2 Cadmium (ug/L) 1 1 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 21 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cadmium (ug/L) SL=0.52 Above RL Detection Monitoring Point K1−02B Below RL 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Detection Monitoring Point K1−04 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 22 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cadmium (ug/L) SL=0.5 Above RL Detection Monitoring Point K1−05 Below RL 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Crossgradient Monitoring Point K1−08 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 23 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cadmium (ug/L) SL=0.5 Above RL Crossgradient Monitoring Point K1−09 Below RL 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.5 Detection Monitoring Point W−PIT1−2326 4 4 3 3 2 2 Cadmium (ug/L) 1 1 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 24 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cobalt (ug/L) Above RL Background Monitoring Point K1−01C Below RL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 25 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cobalt (ug/L) SL=25 Above RL Detection Monitoring Point K1−02B Below RL SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=25 Detection Monitoring Point K1−04 SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 26 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cobalt (ug/L) SL=25 Above RL Detection Monitoring Point K1−05 Below RL SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=25 Crossgradient Monitoring Point K1−08 SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 27 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Cobalt (ug/L) SL=25 Above RL Crossgradient Monitoring Point K1−09 Below RL SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=25 Detection Monitoring Point W−PIT1−2326 SL Cobalt (ug/L) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 28 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Copper (ug/L) Above RL Background Monitoring Point K1−01C Below RL Copper (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Copper (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 29 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Copper (ug/L) SL=60 Above RL Detection Monitoring Point K1−02B Below RL SL Copper (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=10 Detection Monitoring Point K1−04 Copper (ug/L) SL 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 30 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Copper (ug/L) SL=30 Above RL Detection Monitoring Point K1−05 Below RL SL Copper (ug/L) 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=10 Crossgradient Monitoring Point K1−08 Copper (ug/L) SL 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 31 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Copper (ug/L) SL=10 Above RL Crossgradient Monitoring Point K1−09 Below RL Copper (ug/L) SL 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=10 Detection Monitoring Point W−PIT1−2326 Copper (ug/L) SL 0 10 20 30 40 50 60 0 10 20 30 40 50 60

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 32 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Lead (ug/L) Above RL Background Monitoring Point K1−01C Below RL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 33 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Lead (ug/L) SL=2 Above RL Detection Monitoring Point K1−02B Below RL SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=2 Detection Monitoring Point K1−04 SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 34 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Lead (ug/L) SL=2 Above RL Detection Monitoring Point K1−05 Below RL SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=2 Crossgradient Monitoring Point K1−08 SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 35 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Lead (ug/L) SL=2 Above RL Crossgradient Monitoring Point K1−09 Below RL SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

SL=2 Detection Monitoring Point W−PIT1−2326 SL Lead (ug/L) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 36 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Nickel (ug/L) Above RL Background Monitoring Point K1−01C Below RL 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 37 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Nickel (ug/L) SL=9 Above RL Detection Monitoring Point K1−02B Below RL 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=5 Detection Monitoring Point K1−04 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 38 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Nickel (ug/L) SL=13 Above RL Detection Monitoring Point K1−05 Below RL 40 40 30 30 20 20 Nickel (ug/L) Nickel SL 10 10 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=5 Crossgradient Monitoring Point K1−08 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 39 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Nickel (ug/L) SL=5 Above RL Crossgradient Monitoring Point K1−09 Below RL 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=5 Detection Monitoring Point W−PIT1−2326 40 40 30 30 20 20 Nickel (ug/L) Nickel 10 10 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Data omitted Sample quarter See Table 1

ESH-EFA-WQ-17-14447-BP/RB:ar 40 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Vanadium (ug/L) Above RL Background Monitoring Point K1−01C Below RL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 41 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Vanadium (ug/L) SL=59 Above RL Detection Monitoring Point K1−02B Below RL SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=46 Detection Monitoring Point K1−04 SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 42 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Vanadium (ug/L) SL=79 Above RL Detection Monitoring Point K1−05 Below RL SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=78 Crossgradient Monitoring Point K1−08 SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 43 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Vanadium (ug/L) SL=69 Above RL Crossgradient Monitoring Point K1−09 Below RL SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=63 Detection Monitoring Point W−PIT1−2326 SL Vanadium (ug/L) Vanadium 0 20 40 60 80 100 120 0 20 40 60 80 100 120

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 44 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Zinc (ug/L) Above RL Background Monitoring Point K1−01C Below RL 100 150 200 100 150 200 Zinc (ug/L) 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 100 150 200 100 150 200 Zinc (ug/L) 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 45 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Zinc (ug/L) SL=98 Above RL Detection Monitoring Point K1−02B Below RL 100 150 200 100 150 200 SL Zinc (ug/L) 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=51 Detection Monitoring Point K1−04 100 150 200 100 150 200 Zinc (ug/L) 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 46 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Zinc (ug/L) SL=24 Above RL Detection Monitoring Point K1−05 Below RL 100 150 200 100 150 200 Zinc (ug/L) 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=20 Crossgradient Monitoring Point K1−08 100 150 200 100 150 200 Zinc (ug/L) 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 47 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Zinc (ug/L) SL=20 Above RL Crossgradient Monitoring Point K1−09 Below RL 100 150 200 100 150 200 Zinc (ug/L) 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=48 Detection Monitoring Point W−PIT1−2326 100 150 200 100 150 200 Zinc (ug/L) 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 48 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Radium 226 (Bq/L) Above RL Background Monitoring Point K1−01C Estimated Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 49 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Radium 226 (Bq/L) SL=0.012 Above RL Detection Monitoring Point K1−02B Estimated SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.012 Detection Monitoring Point K1−04 SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 50 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Radium 226 (Bq/L) SL=0.012 Above RL Detection Monitoring Point K1−05 Estimated SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.009 Crossgradient Monitoring Point K1−08 SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 51 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Radium 226 (Bq/L) SL=0.012 Above RL Crossgradient Monitoring Point K1−09 Estimated SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.019 Detection Monitoring Point W−PIT1−2326 SL Radium 226 (Bq/L) 0.00 0.01 0.02 0.03 0.04 0.00 0.01 0.02 0.03 0.04

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 52 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Tritium (Bq/L) Above RL Background Monitoring Point K1−01C Below RL 100 150 100 150 Tritium (Bq/L) Tritium 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 100 150 100 150 Tritium (Bq/L) Tritium 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 53 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Tritium (Bq/L) SL=158.4 Above RL Detection Monitoring Point K1−02B Below RL SL 100 150 100 150 Tritium (Bq/L) Tritium 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=19.2 Detection Monitoring Point K1−04 100 150 100 150 Tritium (Bq/L) Tritium 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 54 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Tritium (Bq/L) SL=11.4 Above RL Detection Monitoring Point K1−05 Below RL 100 150 100 150 Tritium (Bq/L) Tritium 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=10.7 Crossgradient Monitoring Point K1−08 100 150 100 150 Tritium (Bq/L) Tritium 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 55 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Tritium (Bq/L) SL=8.7 Above RL Crossgradient Monitoring Point K1−09 Estimated 100 150 100 150 Tritium (Bq/L) Tritium 50 50 SL 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=132.8 Detection Monitoring Point W−PIT1−2326 SL 100 150 100 150 Tritium (Bq/L) Tritium 50 50 0 0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 56 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 228 (Bq/L) Above RL Background Monitoring Point K1−01C Estimated Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 57 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 228 (Bq/L) SL=0.003 Above RL Detection Monitoring Point K1−02B Estimated Thorium 228 (Bq/L) SL −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.005 Detection Monitoring Point K1−04 SL Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 58 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 228 (Bq/L) SL=0.003 Above RL Detection Monitoring Point K1−05 Estimated Thorium 228 (Bq/L) SL −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.004 Crossgradient Monitoring Point K1−08 SL Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 59 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 228 (Bq/L) SL=0.008 Above RL Crossgradient Monitoring Point K1−09 Estimated SL Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.005 Detection Monitoring Point W−PIT1−2326 SL Thorium 228 (Bq/L) −0.005 0.000 0.005 0.010 0.015 0.020 −0.005 0.000 0.005 0.010 0.015 0.020 11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 60 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 232 (Bq/L) Above RL Background Monitoring Point K1−01C Estimated Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 61 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 232 (Bq/L) SL=0.004 Above RL Detection Monitoring Point K1−02B Estimated SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.001 Detection Monitoring Point K1−04 SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 62 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 232 (Bq/L) SL=0.004 Above RL Detection Monitoring Point K1−05 Estimated SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.004 Crossgradient Monitoring Point K1−08 SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 63 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Thorium 232 (Bq/L) SL=0.002 Above RL Crossgradient Monitoring Point K1−09 Estimated SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.001 Detection Monitoring Point W−PIT1−2326 SL Thorium 232 (Bq/L) −0.002 0.000 0.002 0.004 0.006 0.008 −0.002 0.000 0.002 0.004 0.006 0.008

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 64 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U234+U233 (Bq/L) Above RL Background Monitoring Point K1−01C Below RL 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 65 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U234+U233 (Bq/L) Above RL Detection Monitoring Point K1−02B Below RL 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point K1−04 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 66 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U234+U233 (Bq/L) Above RL Detection Monitoring Point K1−05 Below RL 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Crossgradient Monitoring Point K1−08 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 67 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U234+U233 (Bq/L) Above RL Crossgradient Monitoring Point K1−09 Below RL 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point W−PIT1−2326 0.3 0.3 0.2 0.2 U234+U233 (Bq/L) 0.1 0.1 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 68 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U235+U236 (Bq/L) Above RL Background Monitoring Point K1−01C Estimated U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 69 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U235+U236 (Bq/L) Above RL Detection Monitoring Point K1−02B Estimated U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point K1−04 U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 70 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U235+U236 (Bq/L) Above RL Detection Monitoring Point K1−05 Estimated U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Crossgradient Monitoring Point K1−08 U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 71 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U235+U236 (Bq/L) Above RL Crossgradient Monitoring Point K1−09 Estimated U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point W−PIT1−2326 U235+U236 (Bq/L) 0.000 0.005 0.010 0.015 0.020 0.000 0.005 0.010 0.015 0.020

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 72 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U238 (Bq/L) Above RL Background Monitoring Point K1−01C Below RL U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 73 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U238 (Bq/L) Above RL Detection Monitoring Point K1−02B Below RL U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point K1−04 U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 74 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U238 (Bq/L) Above RL Detection Monitoring Point K1−05 Below RL U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Crossgradient Monitoring Point K1−08 U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 75 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area U238 (Bq/L) Above RL Crossgradient Monitoring Point K1−09 Below RL U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Detection Monitoring Point W−PIT1−2326 U238 (Bq/L) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 76 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Total U (Bq/L) Above RL Background Monitoring Point K1−01C Below RL 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 77 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Total U (Bq/L) SL=0.145 Above RL Detection Monitoring Point K1−02B Below RL 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.085 Detection Monitoring Point K1−04 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 78 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Total U (Bq/L) SL=0.115 Above RL Detection Monitoring Point K1−05 Below RL 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.149 Crossgradient Monitoring Point K1−08 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 79 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area Total U (Bq/L) SL=0.137 Above RL Crossgradient Monitoring Point K1−09 Below RL 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=0.139 Detection Monitoring Point W−PIT1−2326 0.6 0.6 0.4 0.4 Total U (Bq/L) Total 0.2 0.2 SL 0.0 0.0

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 80 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area HMX (ug/L) Above RL Background Monitoring Point K1−01C Below RL HMX (ug/L) 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 HMX (ug/L) 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 81 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area HMX (ug/L) SL=1 Above RL Detection Monitoring Point K1−02B Below RL HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Detection Monitoring Point K1−04 HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 82 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area HMX (ug/L) SL=1 Above RL Detection Monitoring Point K1−05 Below RL HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Crossgradient Monitoring Point K1−08 HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 83 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area HMX (ug/L) SL=1 Above RL Crossgradient Monitoring Point K1−09 Below RL HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Detection Monitoring Point W−PIT1−2326 HMX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 84 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area RDX (ug/L) Above RL Background Monitoring Point K1−01C Below RL RDX (ug/L) 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

Background Monitoring Point K1−07 RDX (ug/L) 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 85 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area RDX (ug/L) SL=1 Above RL Detection Monitoring Point K1−02B Below RL RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Detection Monitoring Point K1−04 RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 86 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area RDX (ug/L) SL=1 Above RL Detection Monitoring Point K1−05 Below RL RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Crossgradient Monitoring Point K1−08 RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 87 UCRL−AR−10191−16−4 LLNL Site 300 Pit 1 Monitoring Program Annual Report 2016

Pit 1 Area RDX (ug/L) SL=1 Above RL Crossgradient Monitoring Point K1−09 Below RL RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

SL=1 Detection Monitoring Point W−PIT1−2326 RDX (ug/L) SL 0 1 2 3 4 5 0 1 2 3 4 5

11111111111133333333333 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Sample quarter

ESH-EFA-WQ-17-14447-BP/RB:ar 88