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Research Center These are the analy,cal results for the first well CWERC sampled to beta- test its dra= monitoring guide.

1 e-hardcopy 2.0 Automated Report Mountain States 06/27/2 06/27/2 Technical Report for Colorado Water Energy Research Center CWERC Well # Accutest Job Number: Sampling Date: 06/3/2 Report to: Colorado Water Energy Research Center These are the analy,cal results for the first well CWERC sampled to beta- test its dra= monitoring guide. CWERC chose Accutest from its list of recommended labs because it is close to Boulder, which made it possible to drive the samples over instead of shipping them. Analy,cal reports can be difficult to understand, as they are full of unfamiliar terms and acronyms. Read on to see how you can make sense of these kinds of documents. Look for the blue arrows and text boxes like this one. Total number of pages in report: 35 This example report is best used in conjunc,on with our Water Quality Interpreta,on Guide, which describes all of the analytes in our monitoring program and provides,ps on how to make sense of results. Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Conference and/or state specific certification programs as applicable. Brad Madadian Laboratory Director Certifications: CO, ID, NE, NM, (R-027) (PW), UT (NELAP CO00049), TX (T ) This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Test results relate only to samples analyzed. Mountain States 4036 Youngfield St. Wheat Ridge, CO tel: fax: Accutest Laboratories is the sole authority for authorizing edits or modifications to this document. Unauthorized modification of this report is strictly prohibited. of 35

2 Table of Contents Section : Sample Summary... Section 2: Sample Results... 2.: -: CWERC : -F: CWERC... Section 3: Misc. Forms... 3.: Chain of Custody... Section 4: GC/MS Volatiles - QC Data Summaries... 4.: Method Blank Summary : Blank Spike Summary : Matrix Spike Summary : Duplicate Summary... Section 5: GC Volatiles - QC Data Summaries... 5.: Method Blank Summary : Blank Spike Summary : Matrix Spike/Matrix Spike Duplicate Summary... Section 6: Metals Analysis - QC Data Summaries... 6.: Prep QC MP7659: As,Ba,B,Ca,Cr,Cu,Fe,Pb,Mg,Mn,K,Se,Na,Sr... Section 7: General Chemistry - QC Data Summaries... 7.: Method Blank and Spike Results Summary : Duplicate Results Summary : Matrix Spike Results Summary : Matrix Spike Duplicate Results Summary Sections: of 35

3 Accutest Laboratories Colorado Water Energy Research Center CWERC Well # Sample Summary Job No: Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID - 06/3/2 09:5 AK 06/3/2 AQ Ground Water CWERC -F 06/3/2 09:5 AK 06/3/2 AQ Groundwater Filtered CWERC 3 of 35

4 Section 2 Accutest Laboratories Mountain States 2 Sample Results Report of Analysis 4 of 35

Accutest Laboratories Report of Analysis Page of 2.

Prep Date Prep Batch Analytical Batch Run # 3V8696.D BR n/a n/a V3V08 Run #2 = not detected, Purge Volume which means no BTEX Run # 5.0 ml vola,le organics were Run #2 found in this sample.

Surrogate Recoveries Run# Run# 2 Limits Units 7060-07-0,2-Dichloroethane-D4 84% 67-3% 2037-26-5 460-00-4 Toluene-D8 4-Bromofluorobenzene 88% 82% 65-30% 65-30% Surrogate Recoveries: The lab adds

5 Accutest Laboratories Report of Analysis Page of 2. 2 Client Sample ID: CWERC Lab Sample ID: - Date Sampled: 06/3/2 Date Received: 06/3/2 Percent Solids: n/a Matrix: Method: Project: AQ - Ground Water SW B CWERC Well # File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run # 3V8696.D BR n/a n/a V3V08 Run #2 = not detected, Purge Volume which means no BTEX Run # 5.0 ml vola,le organics were Run #2 found in this sample. Purgeable Aromatics CAS No Compound Benzene Toluene Ethylbenzene Xylene (total) Result RL MDL CAS No. Surrogate Recoveries Run# Run# 2 Limits Units ,2-Dichloroethane-D4 84% 67-3% Toluene-D8 4-Bromofluorobenzene 88% 82% 65-30% 65-30% Surrogate Recoveries: The lab adds surrogate compounds to monitor the efficiency of sample prepara,on. If they add 00 mg/l of a substance and recover 80 mg/l upon analysis, that would suggest 80% efficiency. Surrogates are added to all samples being tested for organic compounds. In this case, efficiency is 82-88%. Repor,ng Limit (RL) versus Method Detec,on Limit (MDL): A Repor,ng Limit is the limit of detec,on for an analyte in other words, the lowest cer,fied detectable level. Regulators and labs set the Repor,ng Limit at the lowest point to which the analy,cal equipment can be calibrated. The Method Detec,on Limit is a sta,s,cal es,mate of how low the method s detec,on abili,es can go, which is why it s lower than the regulated Repor,ng Limit. Q Na,onal Primary Drinking Water Standards: Benzene = 05 Toluene =.0 Ethylbenzene = 0.7 Xylene = Units: The units are in micrograms per liter. This is smaller than the unit in the federal drinking water standards, which are reported in milligrams per liter (). You need to convert the number to in order to compare your results to federal standards. =.00, so to get the number in we mul,ply by.00. (Move the decimal to the le= three places.) For example, the benzene detec,on limit is That s 0027, which is well below the federal 05 limit and shows = Not detected MDL - Method Detection Limit J = Indicates an estimated value that the lab is capable of RL = Reporting Limit B = Indicates analyte found in associated method blank detec,ng even trace E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound amounts of benzene. 5 of 35

6 Accutest Laboratories Report of Analysis Page of 2. 2 Client Sample ID: CWERC Lab Sample ID: - Date Sampled: 06/3/2 Date Received: 06/3/2 Percent Solids: n/a Matrix: Method: Project: AQ - Ground Water RSK75 MOD CWERC Well # File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run # FB06482.D 06/22/2 AV n/a n/a GFB258 Run #2 CAS No. Compound Result RL MDL Units Q Methane = methane was not detected in this sample. There is no limit for methane under the Na,onal Primary Drinking Water Standards, but the Colorado Oil and Gas Conserva,on Commission will inves,gate methane concentra,ons above - 2 mg/l. Federal regulators recommend ven,ng wells that contain more than 0 mg/l of methane due to explosion hazard. = Not detected MDL - Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 6 of 35

7 Accutest Laboratories Report of Analysis Page of 2. 2 Client Sample ID: CWERC Lab Sample ID: - Date Sampled: 06/3/2 Matrix: AQ - Ground Water Date Received: 06/3/2 Percent Solids: n/a Project: CWERC Well # Total Metals Analysis Analyte Result RL Units DF Prep Analyzed By Method Prep Method Arsenic Barium Boron Calcium Chromium Copper Iron Lead Magnesium Manganese Potassium Selenium Sodium Strontium < <0 < < <5.0 <000 < JM JM JM JM JM JM JM JM JM JM JM JM JM JM EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA EPA () Instrument QC Batch: All the MA252 metals are reported in micrograms per liter (). We need to convert these to (2) Prep QC Batch: milligrams MP7659 per liter () so that we can compare them to the federal standards, which are reported in. To do so, we move the decimal three places to the le= and find that all results are safely within federal standards. Sample Well (mg/l): Na,onal Primary Drinking Water Standard: Arsenic: < 25 0 Barium: Boron: 68 not regulated Calcium: not regulated Chromium: < 0. Copper: < Iron: * Lead: < 5 5 Magnesium: 27.8 not regulated Manganese: < 05 5 * Potassium: <.0 not regulated Selenium: <50 5 Sodium: 9.60 not regulated Stron,um: not regulated *Suggested levels under Na,onal Secondary Drinking Water Regula,ons which are non- RL = Reporting Limit enforceable guidelines regarding cosme,c and aesthe,c aspects of water quality. 7 of 35

8 Accutest Laboratories Report of Analysis Page of 2. 2 Client Sample ID: CWERC Lab Sample ID: - Date Sampled: 06/3/2 Matrix: AQ - Ground Water Date Received: 06/3/2 Percent Solids: n/a Project: CWERC Well # General Chemistry Analyte Result RL Units DF Analyzed By Method Alkalinity, Total as CaCO3 Chloride Fluoride Nitrogen, Nitrate Nitrogen, Nitrate + Nitrite a Nitrogen, Nitrite Specific Conductivity Sulfate ph < umhos/cm su /9/2 06/3/2 4:0 06/3/2 4:0 06/3/2 5:39 06/3/2 5:39 06/3/2 4:0 06/5/2 06/3/2 5:39 06/3/2 4:50 JD NS NS NS NS NS JD NS JK SM B EPA 300/SW EPA 300/SW EPA 300/SW SM8 4500NO3E EPA 300/SW SM20 250B EPA 300/SW SM H B+ (a) Calculated as: (Nitrogen, Nitrate) + (Nitrogen, Nitrite) General chemistry is reported in here, except for specific conduc,vity, which has to do with how well water conducts an electrical current and is reported in umhos/cm. These samples fall safely within federal standards in all categories. Alkalinity: Not regulated. Recommended range for drinking water is Chloride: Na,onal Secondary Drinking Water Standard is 250 mg/l. Flouride: Na,onal Primary Drinking Water Standard is 4.0 mg/l. Nitrate: Na,onal Primary Drinking Water Standard is mg/l. The result from this sample is very low at <0 which confirms that the groundwater source isn t in contact with any of the animal/ag ac,vi,es on this property. Specific Conduc,vity: Not regulated. Result is within the normal range. Sulfate: Na,onal Secondary Drinking Water Standard is 250 mg/l. ph: Na,onal Secondary Drinking Water Standard is RL = Reporting Limit 8 of 35

9 Accutest Laboratories Report of Analysis Page of Client Sample ID: CWERC Lab Sample ID: -F Date Sampled: 06/3/2 Matrix: AQ - Groundwater Filtered Date Received: 06/3/2 Percent Solids: n/a Project: CWERC Well # General Chemistry Analyte Result RL Units DF Analyzed By Method Dissolved Organic Carbon < /20/2 4:56 NS SM20 530B/SW 9060A There is no dissolved organic carbon in the water sample, which, by associa,on, means that there also aren t any oil and gas hydrocarbons like methane, ethane, or propane. RL = Reporting Limit 9 of 35

10 Section 3 Accutest Laboratories Mountain States 3 Misc. Forms Custody Documents and Other Forms Includes the following where applicable: Chain of Custody These have been removed to protect the privacy of the well owner. 0 of 35

11 Section 4 Accutest Laboratories Mountain States 4 GC/MS Volatiles QC Data Summaries Includes the following where applicable: Method Blank Summaries Blank Spike Summaries Matrix Spike and Duplicate Summaries That s the end of the results. The next 22 pages document the lab s Quality Control ac,vi,es. This sec,on is for vola,le organic compounds, such as the BTEX compounds. GC/MS stands for gas chromatography- mass spectrometry which is the method used to detect these compounds. When the lab tests the samples they do so in batches of 20 or less. Each batch contains a method blank, a blank spike, and a matrix spike/matrix spike duplicate. More on those in the next pages. 3 of 35

12 Method Blank Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V3V08-MB 3V868.D BR n/a n/a V3V The QC reported here applies to the following samples: Method: SW B - CAS No. Compound Result RL MDL Units Q Benzene Ethylbenzene Toluene Xylene (total) CAS No. Surrogate Recoveries Limits ,2-Dichloroethane-D4 82% 67-3% Toluene-D8 4-Bromofluorobenzene 88% 8% 65-30% 65-30% The method blank is an extra sample that the lab prepared from a clean (blank) matrix to prove that the analy,cal process isn t contamina,ng the sample. None of the BTEX compounds were detected in the method blank, which shows that the equipment is clean. 4 of 35

13 Blank Spike Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch V3V08-BS 3V8682.D BR n/a n/a V3V The QC reported here applies to the following samples: Method: SW B - CAS No. Compound Spike BSP BSP % Limits Benzene Ethylbenzene Toluene Xylene (total) CAS No. Surrogate Recoveries BSP Limits ,2-Dichloroethane-D4 83% 67-3% Toluene-D8 4-Bromofluorobenzene 88% 87% 65-30% 65-30% The blank spike is also a clean matrix, but the lab will add the compounds of interest and analyze them to determine the efficiency of the process. For example, here the lab added 50 of benzene and recovered 52.5 (or 05%), which shows that the analysis slightly overpredicts the compounds of interest. BSP=blank spike. * = Outside of Control Limits. 5 of 35

14 Matrix Spike Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch D MS D V8686.D 5 3V8685.D 5 BR BR n/a n/a n/a n/a V3V08 V3V The QC reported here applies to the following samples: Method: SW B - CAS No. Compound D Spike MS MS Q % Limits Benzene Ethylbenzene Toluene Xylene (total) CAS No. Surrogate Recoveries MS D Limits ,2-Dichloroethane-D4 78% 8% 67-3% Toluene-D8 4-Bromofluorobenzene 88% 87% 89% 84% 65-30% 65-30% The matrix spike is a sample prepared from the actual samples, to which compounds are added and the percent recovery is calculated. This tests the success of the procedure in recovering compounds from a par,cular matrix, such as well water. In this case, the lab added 250 of benzene to the sample and recovered 258 (or 03%). * = Outside of Control Limits. 6 of 35

15 Duplicate Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF D DUP a 3V8703A.D D a 3V8702A.D Analyzed By BR BR Prep Date n/a n/a Prep Batch n/a n/a Analytical Batch V3V08 V3V The QC reported here applies to the following samples: Method: SW B - CAS No. Compound D DUP Q Q RPD Limits Benzene Ethylbenzene Toluene Xylene (total) nc nc nc nc CAS No. Surrogate Recoveries DUP D Limits ,2-Dichloroethane-D4 87% 86% 67-3% Toluene-D8 4-Bromofluorobenzene 87% 80% 88% 80% 65-30% 65-30% (a) In-house sample analyzed beyond the 2 hour analysis window due to sequence error. The duplicate is siphoned off the sample and run against it to see if there are any differences between the results. A Rela,ve Percent Difference (RPD) is calculated to assure consistency. In this case, the BTEX compounds weren t detected in either the real sample (D ) or the duplicate (DUP). * = Outside of Control Limits. 7 of 35

16 Section 5 Accutest Laboratories Mountain States GC Volatiles 5 QC Data Summaries Includes the following where applicable: Method Blank Summaries Blank Spike Summaries Matrix Spike and Duplicate Summaries The Quality Control results for the other compounds (methane here, metals in the next sec,on, and general chemistry a=er that) all follow the same format of method blank, blank spike, matrix spike, and duplicate summaries. GC stands for gas chromatography, which is the method used to detect these compounds. 8 of 35

17 Method Blank Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GC2932-MB FB06480.D 06/22/2 AV n/a n/a GFB258 The QC reported here applies to the following samples: Method: RSK75 MOD CAS No. Compound Result RL MDL Units Q Methane of 35

18 Blank Spike Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GC2932-BS FB0648.D 0 06/22/2 AV n/a n/a GFB258 The QC reported here applies to the following samples: Method: RSK75 MOD CAS No. Compound Spike BSP BSP % Limits Methane * = Outside of Control Limits. 20 of 35

19 Matrix Spike/Matrix Spike Duplicate Summary Job Number: Account: Project: CWERCCOB Colorado Water Energy Research Center CWERC Well # Page of Sample D3545-2MS D3545-2MSD D File ID FB06495.D FB06496.D FB06484.D DF 0 0 Analyzed 06/22/2 06/22/2 06/22/2 By AV AV AV Prep Date n/a n/a n/a Prep Batch n/a n/a n/a Analytical Batch GFB258 GFB258 GFB The QC reported here applies to the following samples: Method: RSK75 MOD - CAS No. Compound D Spike MS MS MSD MSD Limits Q % % RPD Rec/RPD Methane /30 * = Outside of Control Limits. 2 of 35

20 Section 6 Mountain States Accutest Laboratories Metals Analysis 6 QC Data Summaries Includes the following where applicable: Method Blank Summaries Matrix Spike and Duplicate Summaries Blank Spike and Lab Control Sample Summaries Serial Dilution Summaries 22 of 35

21 BLANK RESULTS SUMMARY Part 2 - Method Blanks Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Prep Date: Methods: EPA Units: Metal RL IDL MDL MB raw final Aluminum Antimony Arsenic Barium <25 < Beryllium Boron Cadmium <50 Calcium Chromium Cobalt <400 <0 Copper Iron Lead Lithium <0 <0 <50 Magnesium Manganese Molybdenum <200 <5.0 Nickel Phosphorus Potassium Selenium Silicon <000 <50 Silver Sodium Strontium Thallium <400 <5.0 Tin Titanium 0. 3 Uranium Vanadium Zinc Associated samples MP7659: - Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits Page 23 of 35

22 BLANK RESULTS SUMMARY Part 2 - Method Blanks Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Methods: EPA Units: Prep Date: Metal (anr) Analyte not requested Page 2 24 of 35

23 MATRIX SPIKE A DUPLICATE RESULTS SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Prep Date: Methods: EPA Units: D Spikelot QC Metal Original MS ICPALL2 % Rec Limits Aluminum Antimony Arsenic Barium Beryllium anr Boron Cadmium anr Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel anr Phosphorus Potassium Selenium Silicon Silver Sodium Strontium Thallium Tin Titanium Uranium Vanadium Zinc anr Associated samples MP7659: - Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits Page 25 of 35

24 MATRIX SPIKE A DUPLICATE RESULTS SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Methods: EPA Units: Prep Date: Metal (N) Matrix Spike Rec. outside of QC limits (anr) Analyte not requested Page 2 26 of 35

25 MATRIX SPIKE A DUPLICATE RESULTS SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Prep Date: Methods: EPA Units: D Spikelot MSD QC Metal Original MSD ICPALL2 % Rec RPD Limit Aluminum Antimony Arsenic Barium Beryllium anr Boron Cadmium anr Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel anr Phosphorus Potassium Selenium Silicon Silver Sodium (a).5 20 Strontium Thallium Tin Titanium Uranium Vanadium Zinc anr Associated samples MP7659: - Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits Page 3 27 of 35

26 MATRIX SPIKE A DUPLICATE RESULTS SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Prep Date: Methods: EPA Units: Metal (N) Matrix Spike Rec. outside of QC limits (anr) Analyte not requested (a) Spike amount low relative to the sample amount. Refer to lab control or spike blank for recovery information Page 4 28 of 35

27 SPIKE BLANK A LAB CONTROL SAMPLE SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Prep Date: Methods: EPA Units: BSP Spikelot QC Metal Result ICPALL2 % Rec Limits Aluminum Antimony Arsenic Barium Beryllium anr Boron Cadmium anr Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel anr Phosphorus Potassium Selenium Silicon Silver Sodium Strontium Thallium Tin Titanium Uranium Vanadium Zinc anr Associated samples MP7659: - Results < IDL are shown as zero for calculation purposes (*) Outside of QC limits Page 29 of 35

28 SPIKE BLANK A LAB CONTROL SAMPLE SUMMARY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # QC Batch ID: MP7659 Matrix Type: AQUEOUS Methods: EPA Units: Prep Date: Metal (anr) Analyte not requested Page 2 30 of 35

29 Section 7 Accutest Laboratories Mountain States General Chemistry QC Data Summaries 7 Includes the following where applicable: Method Blank and Blank Spike Summaries Duplicate Summaries Matrix Spike Summaries 3 of 35

30 METHOD BLANK A SPIKE RESULTS SUMMARY GENERAL CHEMISTRY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # Analyte Batch ID RL MB Spike BSP BSP QC Result Units Amount Result %Recov Limits Alkalinity, Total as CaCO3 Bromide Chloride Dissolved Organic Carbon Fluoride Nitrogen, Nitrate Nitrogen, Nitrite Specific Conductivity Sulfate ph Associated Samples: Batch GN5406: - Batch GN5492: - Batch GP7470: - Batch GP7498: - Batch GP7528: -F (*) Outside of QC limits GN5492 GP7470/GN5399 GP7470/GN5399 GP7528/GN550 GP7470/GN5399 GP7470/GN5399 GP7470/GN5399 GP7498/GN5447 GP7470/GN5399 GN umhos/cm su % 90-0% 90-0% 90-0% 90-0% 90-0% 90-0% 90-0% 90-0% % 7. 7 Page 32 of 35

31 DUPLICATE RESULTS SUMMARY GENERAL CHEMISTRY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # Analyte Alkalinity, Total as CaCO3 Dissolved Organic Carbon Specific Conductivity Batch ID GN5492 GP7528/GN550 GP7498/GN5447 QC Original DUP QC Sample Units Result Result RPD Limits D35380-A D F D35380-A umhos/cm % 0-25% 0-20% Associated Samples: Batch GN5492: - Batch GP7498: - Batch GP7528: -F (*) Outside of QC limits Page 33 of 35

32 MATRIX SPIKE RESULTS SUMMARY GENERAL CHEMISTRY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # Analyte Alkalinity, Total as CaCO3 Bromide Chloride Dissolved Organic Carbon Fluoride Nitrogen, Nitrate Nitrogen, Nitrite Sulfate Batch ID GN5492 GP7470/GN5399 GP7470/GN5399 GP7528/GN550 GP7470/GN5399 GP7470/GN5399 GP7470/GN5399 GP7470/GN5399 QC Original Spike MS QC Sample Units Result Amount Result %Rec Limits D35380-A - - D35259-F % 80-20% 80-20% 80-20% 80-20% 80-20% 80-20% 80-20% Associated Samples: Batch GN5492: - Batch GP7470: - Batch GP7528: -F (*) Outside of QC limits (N) Matrix Spike Rec. outside of QC limits Page 34 of 35

33 MATRIX SPIKE DUPLICATE RESULTS SUMMARY GENERAL CHEMISTRY Login Number: Account: CWERCCOB - Colorado Water Energy Research Center Project: CWERC Well # Analyte Alkalinity, Total as CaCO3 Bromide Chloride Dissolved Organic Carbon Fluoride Nitrogen, Nitrate Nitrogen, Nitrite Sulfate Batch ID GN5492 GP7470/GN5399 GP7470/GN5399 GP7528/GN550 GP7470/GN5399 GP7470/GN5399 GP7470/GN5399 GP7470/GN5399 QC Original Spike MSD QC Sample Units Result Amount Result RPD Limit D35380-A - - D35259-F % 20% 20% 25% 20% 20% 20% 20% Associated Samples: Batch GN5492: - Batch GP7470: - Batch GP7528: -F (*) Outside of QC limits (N) Matrix Spike Rec. outside of QC limits Page 35 of 35

NEILSON RESEARCH CORPORATION

NEILSON RESEARCH CORPORATION Environmental Testing Laboratory 5/23/2016 Russell Deen Southern Oregon University TEL: (541) 552-6798 FAX (541) 552-6415 RE: Dear Russell Deen: Order No.: 1605610 received