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HomeMy WebLinkAbout6.0 Water Quality Data 2013encana.. tura! gas `' June 27, 2013 Garfield County Building & Planning Department 108 8th Street, Suite 201 Glenwood Springs, CO 81601 RE: Middle Fork Water Storage Pond Water Quality Data. Dear Sir or Madam: 143 Diamond Avenue Parachute, CO 81635 P: (970)285-2707 Please find the attached data summary table and laboratory analysis report for water samples collected from the Middle Fork Water Storage Pond on June 10, 2013. The data summary table also lists several reference standards for comparison with the analytical results. These standards are provided for relative comparison only, as the water is not intended to comply with any of the referenced regulatory standards. The water will be contained on site or used solely for natural gas exploration and production activities. As such, the water will not come in contact with the general public or with environmental receptors such as soil, ground water, or surface water. Please do not hesitate to contact our Parachute office should you have any questions or comments. Sincerely, Encana Oil & Gas (USA) Inc. 0,6\149 -- Dan Prokop EHS Field Coordinator Attachments Cc: David Grisso, Encana Oil & Gas (USA) Inc. Jason Oates, Encana Oil & Gas (USA) Inc. File Sample Location: Middle Fork Water Facility Pond Sample Identification: MFPO Sample Date: 06/10/2013 Test Parameter Laboratory Analytical Report Summary Analytical Results Regulatory Standards Data Units Level Reference Bromide mg/I BDL none N/A Chloride 45.0 250 1,2,3 Fluoride mg/I 0.61 4.0 2,3 Nitrate (NO3) mg/1 BDL 10.0 Nitrite (NO2) mg/I BDL 1.0 1,2,3 Sulfate (504) mg/I 93.0 250 1,2,3 Alkalinity mg/I 190 none Alkalinity, Bicarbonate 190 none N/A Alkalinity, Carbonate mg/I BDL none Methane BDL none IIIIMM Ethane mg/1 BDL none N/A Ethene mg/1 BDL none N/A Ammonia IIlieffiM BDL none 1 pH ® 9.0 6.5-8.5 2,3 Specific conductance µmhos/cm 700 none Sulfide mg/I BDL none N/A Total Dissolved Solids (TDS) mg/I 430 500 3 Arsenic mg/I BDL 0.010 Barium WiffIM 0.10 2.0 2,3 Cadmium IlrEIM BDL 0.005 1,2,3 Calcium mg/I 22.0 none Chromium mg/I BDL 0.1 2,3 Copper mg/I BOL 1.0 1,2,3 Iron mg/I BDL 0.3 MallIII Lead mg/I BDL 0.05 1,2 Magnesium mg/I 41.0 none N/A Manganese mg/I 0.057 0.05 Potassium mg/I 2.7 none N/A Selenium mg/I BDL 0.05 1,2,3 Silver mg/I BDL 0.05 2 Sodium mg/I 66.0 none N/A TPH-GRO mg/I BDL none N/A Benzene mg/1 BDL 0.005 1,2,3 Toluene mg/1 BDL 1.0 1,2,3 Ethylbenzene mg/I BDL 0.7 1,2,3 Xylenes (Total) mg/I BDL 10.0 1,2,3 Meth I tert-but I ether (MTBE M_. BDL none N/A mg/L-milligrams per liter umhos/cm-micromhos per centimeter su-standard units pH -parts of hydrogen BDL -below detection limit NT -not tested Standard Reference Numbers Standard 1= Colorado Department of Public Health and Environment Basic Standards for Surface Water (5 CCR 1002-31) Standard 2= Colorado Department of Public Health and Environment Basic Standards for Ground Water (5 CCR 1002-41) Standard 3= Colorado Department of Public Health and Environment Primary Drinking Water Regulations (5 CCR 1003-1) *ESC L•A•Et S•C°E•E•N-C E•S YOUR LAB OR CHOICE Dan Prokop EnCana Oil & Gas Inc. - CO 143 Diamond Avenue Parachute, CO 01635 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5858 1-800-767-5859 Fax (615( 758-5659 Tax I.D. 62-0814289 Est. 1970 Report Summary Wednesday June 19, 2013 Report Number: L640427 Samples Received: 06/11/13 Client Project: MFPO Description: Middle Fork WTF The analytical results in this report are based upon information supplied by you, the client, and are for your exclusive use. If you have any questions regarding this data package, please do not hesitate to call. Entire Report Reviewed By: T. Alan Harvill , ESC Representative Laboratory Certification Numbers A2LA -- 1461-01, AIHA - 100789, AL - 40660, CA - 01157CA, CT - PH -0197, FL - E87487, GA - 923, IN - C -TN -01, KY - 90010, KYUST - 0016, NC - ENV375/DW21704/BI0041, ND - R-140. NJ - TN002, NJ NELAP - TN002, SC - 84004, TN - 2006, VA - 460132, WV - 233, AZ - 0612, MN - 047-999-395, NY -- 11742, WI - 998093910, NV - TN000032011-1, TX - T104704245-11-3, OK - 9915, PA - 68-02979, IA Lab #364 Accreditation is only applicable to the test methods specified on each scope of accreditation held by ESC Lab Sciences. Note: The use of the preparatory EPA Method 3511 is not approved or endorsed by the CA FLAP. This report may not be reproduced, except in full, without written approval from ESC Lab Sciences. Where applicable, sampling conducted by ESC is performed per guidance provided in laboratory standard operating procedures: 060302, 060363, and 060304. Page 1 of 12 *ESC LAB S•C.I•E•N•C•E•S YOUF7 LA€3 OF CI -!OSCE REPORT OF ANALYSIS Dan Prokop EnCana Oil & Gas Inc. - CO 143 Diamond Avenue Parachute, CO 81635 Date Received June 11, 2013 Description Middle Fork WTF Sample ID MFPO-061013 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5858 1-800-767-5859 Fax (615) 758-5859 Tax L.D. 62-0819289 Est. 1970 June 19, 2013 ESC Sample # L640427-01 Site ID MF Project # : MFPO Collected By Aaron Stacy Collection Date : 06/10/13 11:25 Parameter Result Det. Limit Units Method Date Dil. Bromide BDL 1.0 mg/1 300.0 06/11/13 1 Chloride 45. 1.0 mg/1 300.0 06/11/13 1 Fluoride 0.61 0.10 mg/1 300.0 06/11/13 1 Nitrate BDL 0.10 mg/1 300.0 06/11/13 1 Nitrite BDL 0.10 mg/1 300.0 06/11/13 1 Sulfate 93. 5.0 mg/1 300.0 06/11/13 1 Alkalinity 190 20. mg/1 2320 B-2011 06/13/13 1 Alkalinity,Bicarbonate 190 20. mg/1 2320 B-2011 06/16/13 1 Alkalinity,Carbonate BDL 20. mg/1 2320 B-2011 06/16/13 1 Methane BDL 0.010 mg/1 RSK175 06/12/13 1 Ethane BDL 0.013 mg/1 RSK175 06/12/13 1 Ethene BDL 0.013 mg/1 RSK175 06/12/13 1 Ammonia Nitrogen BDL 0.10 mg/I 350.1 06/19/13 1 pH 9.0 su 4500H+ B-2011 06/13/13 1 Specific Conductance 700 umhos/cm 120.1 06/17/13 1 Sulfide BDL 0.050 mg/1 4500S2 D-2011 06/13/13 1 Dissolved Solids 430 10. mg/1 2540 C-2011 06/14/13 1 Arsenic,Dissolved BDL 0.020 mg/1 200.7 06/18/13 1 Barium,Dissolved 0.10 0.0050 mg/1 200.7 06/18/13 1 Cadmium,Dissolved BDL 0.0050 mg/1 200.7 06/18/13 1 Calcium,Dissolved 22. 0.50 mg/1 200.7 06/18/13 1 Chromium,Dissolved BDL 0.010 mg/1 200.7 06/18/13 1 Copper,Dissalved BDL 0.020 mg/1 200.7 06/18/13 1 Iron,Dissolved BDL 0.10 mg/1 200.7 06/18/13 1 Lead,Dissolved BDL 0.0050 mg/1 200.7 06/18/13 1 Magnesium,Dissolved 41. 0.10 mg/1 200.7 06/18/13 1 Manganese,Dissolved 0.057 0.010 mg/1 200.7 06/18/13 1 Potassium,Dissolved 2.7 0.50 mg/1 200.7 06/18/13 1 Selenium,Dissolved BDL 0.020 mg/1 200.7 06/18/13 1 Silver,Dissolved BDL 0.010 mg/1 200.7 06/18/13 1 Sodium,Dissolved 66. 0.50 mg/1 200.7 06/18/13 1 TPH (GC/FID) Low Fraction BDL 0.10 mg/1 0015D/GRO 06/13/13 1 Surrogate Recovery-% a,a,a-Trifluorotoluene(FID) 101. 9 Rec. 8015D/GRO 06/13/13 1 BDL - Below Detection Limit Det. Limit - Practical Quantitation Limit(PQL) L640427-01 (PH) - 9.0 @ 20.6c Page 2 of 12 ESC LAB S•C•I•E IE•C S YOUR LAB OF CHOICE- Dan HOICE Dan Prokop EnCana Oil & Gas Inc. - CO 143 Diamond Avenue Parachute, CO 81635 Date Received Description Sample ID Collected By Collection Date Parameter June 11, 2013 Middle Fork WTF MFPO-061013 Aaron Stacy 06/10/13 11:25 REPORT OF ANALYSIS 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5858 1-800-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 June 19, 2013 ESC Sample # : L640427--01 Site ID MF Project # : MFPO Result Det. Limit Units Method Date Dil. Benzene Toluene Ethylbenzene Total Xylenes Methyl tert-butyl ether Surrogate Recovery Toluene -d8 Dibromof1uoromethane 4-Bromofluorobenzene BDL 0.0010 mg/1 8260B BDL 0.0050 mg/1 8260B BDL 0.0010 mg/1 82603 BDL 0.0030 mg/1 8260B BDL 0.0010 mg/1 8260B 103. % Rec. 82603 109. % Rec. 82603 99.8 % Rec. 8260B 06/13/13 1 06/13/13 1 06/13/13 1 06/13/13 1 06/13/13 1 06/13/13 1 06/13/13 1 06/13/13 1 &DL - Below Detection Limit Det. Limit - Practical Quantitation Limit(PQL) Note: The reported analytical results relate only to the sample submitted. This report shall not be reproduced, except in full, without the written approval from ESC. Reported: 06/19/13 10:17 Printed: 06/19/13 13:57 L640427-01 (PH) - 9.0 @ 20.6c Page 3 of 12 Attachment A List of Analytes with QC Qualifiers Sample Work Sample Run Number Group Type Analyte Ill Qualifier L640427-01 WG666318 SAMP Alkalinity R270482 J6 WG666307 SAMP pH R2706740 T8 Page 4 of 12 Qualifier J6 T8 Attachment B Explanation of QC Qualifier Codes Meaning The sample matrix interfered with the ability to make any accurate determination; spike value is low (ESC) - Additional method/sample information: Sample(s) received past/too close to holding time expiration. Qualifier Report Information ESC utilizes sample and result qualifiers as set forth by the EPA Contract Laboratory Program and as required by most certifying bodies including NELAC. In addition to the EPA qualifiers adopted by ESC, we have implemented ESC qualifiers to provide more information pertaining to our analytical results. Each qualifier is designated in the qualifier explanation as either EPA or ESC. Data qualifiers are intended to provide the ESC client with more detailed information concerning the potential bias of reported data. Because of the wide range of constituents and variety of matrices incorporated by most EPA methods,it is common for some compounds to fall outside of established ranges. These exceptions are evaluated and all reported data is valid and useable "unless qualified as 'R' (Rejected)." Definitions Accuracy - The relationship of the observed value of a known sample to the true value of a known sample. Represented by percent recovery and relevant to samples such as: control samples, matrix spike recoveries, surrogate recoveries, etc. Precision The agreement between a set of samples or between duplicate samples. Relates to how close together the results are and is represented by Relative Percent Differrence. Surrogate - Organic compounds that are similar in chemical composition, extraction, and chromotography to analytes of interest. The surrogates are used to determine the probable response of the group of analytes that are chem- ically related to the surrogate compound. Surrogates are added to the sample and carried through all stages of preparation and analyses. TIC - Tentatively Identified Compound: Compounds detected in samples that are not target compounds, internal standards, system monitoring compounds, or surrogates. Page 5 of 12 Summary of Remarks For Samples Printed 06/19/13 at 13:57:41 TSR Signing Reports: 35g R5 - Desired TAT Log ALL samples for EDD (COGCC EDD). Log all PAHs as PAHSIM. DRO and DRO -SGT needed if TPH is listed twice on COC, one being TPH-GEL EXTRACT. Try not to report benzene as BDL above a 250x dilution. Sample: L640427-01 Account: ENCANACO Received: 06/11/13 09:30 Due Date: 06/18/13 00:00 RPT Date: 06/19/13 10:17 *ESC L.A-B S•C+1•C.N•C.E,S YOUR Like O* CHO!CE EnCana Oil 6 Gas Inc. - CC Dan Prokop 143 Diamond Avenue Parachute, CO 81635 Quality Assurance Report Level II L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5658 1--000-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 June 19, 2013 Analyte Bromide Chloride Fluoride Nitrate Nitrite Sulfate Result Laboratory Blank Units % Rec Limit Batch Date Analyzed TPH (GC/FID) Low Fraction a, a, a-Trifluorotoluene(FID) Fthane Ethene Methane Sulfide Benzene Ethylbenzene Methyl tert-butyl ether Toluene Total Xylenes 4-Bromofluorobenzene Dibromofluoromethane Toluene -d8 Dissolved Solids Alkalinity Specific Conductance Arsenic, Dissolved Barium, Dissolved Cadmium, Dissolved Calcium, Dissolved Chromium, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Magnesium, Dissolved Manganese, Dissolved Potassium, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Ammonia Nitrogen < 1 < 1 < .1 < .1 < .1 < 5 < .1 < .013 < .013 < .01 < .05 < .001 < .001 < .001 < .005 < .003 < 10 < 20 1.10 < .02 < .005 < .005 < .5 < .01 < .02 < .1 < .005 < .1 < .01 < .5 < .02 5 .01 < .5 < .1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 8 Rec. mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 % Rec. 8 Rec. Rec. mg/1 mg/1 umhos/cm mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 mg/1 101.6 100.7 106.6 101.7 62-128 82-120 02-126 92-112 - Performance of this Analyte is outside of established criteria. For additional information, please see Attachment A 'List of Analytes with QC Qualifiers.' Page 6 of 12 WG665764 WG665784 WG665784 WG665784 W0665784 WG665764 06/11/13 06/11/13 06/11/13 06/11/13 06/11/13 06/11/13 07:38 07:38 07:38 07:38 07:38 07:38 WG666248 06/13/13 07:03 WG666248 06/13/13 07:03 180666145 180666145 WG666145 06/12/13 05/12/13 06/12/13 16:08 16:08 16:08 WG666211 06/13/13 12:32 WG665952 WG665952 WG665952 WG665952 WG665952 WG665952 WG665952 WG665952 06/13/13 06/13/13 06/13/13 06/13/13 06/13/13 06/13/13 06/13/13 06/13/13 11:28 11:28 11:28 11:28 11:28 11:28 11:28 11:28 186685212 06/14/13 11:10 18G666318 06/13/13 09:39 18G566664 06/17/13 14:02 WG667072 W0667072 W0667072 WG667072 1G667072 WG667072 WG667072 WG667072 WG667072 WG667072 WG667072 186667072 WG667072 WG667072 06/18/13 06/188/13 06/18/13 06/18/13 06/16/13 06/18/13 06/18/13 06/18/13 06/18/13 06/18/13 06/18/13 06/18/13 06/18/13 06/18/13 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 09:56 WG666204 06/19/13 08:56 *ESC L•A•�i S•C. E•N•C•E•S YOUR LAR OF CHOICE EnCana Oil & Gas Inc. - C_ Dan Prokop 143 Diamond Avenue Quality Assurance Report Level II Parachute, CO 81635 June 19, 2013 L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 j615) 758-5858 1-800-767-5859 Fax (615} 758-5859 Tax I.D. 62-0814289 Est. 1970 Analyte Duplicate Units Result Duplicate RPD Limit Ref Samp Batch Chloride Nitrate Nitrite Sulfate Fluoride Nitrate Nitrite mg/1 13.0 13.0 0 20 L640281-04 WG665784 ❑ig/1 0 0 0 20 L640281-04 WG665784 mg/1 0 0 0 20 L640281-04 W0665784 mg/1 0 0 0 20 L640281-04 WG665784 mg/1 0.290 0.289 0.345 20 L640308-01 WG665784 mg/1 0 0 0 20 L640308-01 WG665784 mg/1 0 0 0 20 L640308-01 WG665784 Sulfide mg/1 0 0 0 20 L640750-06 WG666211 Sulfide mg/1 0 0 0 20 L640281-01 WG666211 pH su 9.00 9.00 0 1 L640427-01 WG666307 pH su 8.30 8.30 0.241 1 L640824-01 WG666307 Dissolved Solids mg/1 410. 428. 3.33 5 L640427-01 WG666212 Alkalinity mg/1 140. 130. 4.51 20 1638969-04 WG666318 Alkalinity mg/1 290. 200. 2.47 20 L640750-06 WG666318 Specific Conductance Specific Conductance umhcs/cm 120. umhos/c.m 250. 120. 3.28 20 L637712-03 WG666664 250. 1.59 20 L640982-01 WG666664 Arsenic,Dissolved mg/1 0 0.00490 NA 20 L640905-09 W0667072 Barium,Dissolved mg/1 0.0400 0.0414 3.44 20 L640905-09 WG667072 Cadmium,Dissolved mg/1 0 0.000500 NA 20 L640905-09 WG667072 Calcium,Dissolved mg/1 140. 140. 0 20 L640905-09 WG667072 Chromium,Dissglved mg/1 0 0.00110 NA 20 L640905-09 WG667072 Copper,Dissolved mg/1 0 0 0 20 L640905-09 WG667072 Iron,Dissolved mg/1 0 0 0 20 L640905-09 WG667072 Lead,Dissolved mg/1 0 0 0 20 L640905-09 WG667072 Magnesium,Dissolved mg/1 23.0 24.0 4.26 20 L640905-09 WG667072 Manganese,Dissolved mg/1 0.550 0.563 2.34 20 L640905-09 [86667072 Potassium,Dissolved mg/1 5.30 5.30 0 20 L640905-09 W0667072 Selenium, Dissolved mg/1 0 0 0 20 L640905-09 WG667072 Silver,Dissolved mg/1 0 0.000100 NA 20 L640905-09 W0667072 Sodium,Dissolved mg/1 12.0 12.0 0 20 L640905-09 WG667072 Ammonia Nitrogen mgil 0.100 0.120 10.2 20 L640716-01 W0666204 Ammonia Nitrogen mg/1 0.190 0.250 27.3* 20 L640312-02 WG666204 Laboratory Control Sample Analyte Units Known Val Result % Rec Limit Batch Bromide mg/1 40 39.9 99.8 90-110 WG665784 Chloride mg/1 40 39.9 99.8 90-110 WG665764 Fluoride mg/1 8 8.01 100. 90-110 WG665784 Nitrate mg/1 8 8.02 100. 90-110 WG665784 Nitrite mg/1 8 7.97 99.6 90-110 WG665784 Sulfate mg/1 40 39.5 98.8 90-110 WG665784 TPH IGC/FIDS Low Fraction mg/1 5.5 5.14 93.5 70-124 WG666248 a,a,a-Trifluorotoluene(FID) 101.2 62-128 WG6666248 * Performance of this Analyte is outside of established criteria. For additional information, please see Attachment A 'List of Analytes with QC Qualifiers.' Page 7 of 12 *ESC LAD S.C•I•E•N•C,E•S YOUR LAS Oi,' CHOSGE EnCana Oil & Gas Inc. - 02 Dan Prokop 143 Diamond Avenue Quality Assurance Report Level II Parachute, CO 81635 June 19, 2013 L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 (515) 758-5858 1-800-767-5859 Fax (615) 758-5659 Tax I.D. 62-0814289 Est. 1970 Laboratory Control Sample Analyte Units Known Val Result % Rec Limit Batch Ethane Ethene Methane mg/1 .645 0.693 107. 70-130 WG666145 mg/1 .635 0.668 105. 70-130 W0666145 mg/1 .339 0.368 108. 70-130 WG666145 Sulfide mg/1 .5 0.513 103. 85-115 WG666211 pH su 5.79 5.80 100. 98.3-101.7 WG666307 Benzene mg/1 .025 0.0260 104. 72-119 110665952 Ethylbenzene mg/1 .025 0.0256 103. 77-124 W0665952 Methyl tert-butyl ether mg/1 .025 0.0211 84.3 67-127 W0665952 Toluene mg/1 .025 0.0253 101. 75-114 110665952 Total Xylenes mg/1 .075 0.0772 103. 77-123 W0665952 4-Hromofluorobenzene 99.53 82-120 WG665952 Dibromofluoromethane 104.9 82-126 W0665952 Toluene -d8 101.7 92-112 110665952 Dissolved Solids mg/1 8800 8700 98.9 85-115 116666212 Alkalinity mgil 100 100. 100. 85-115 WG666318 Specific Conductance umhos/cm 878 690. 101. 85-115 WG666664 Arsenic,Dissolved mg/1 1 0.995 99.5 85-115 W0667072 Barium,Dissolved mg/1 1 1.03 103. 85-115 W0667072 Cadmium, Dissolved mg/1 1 1.03 103. 85-115 WG667072 Calcium,Diasolved mg/1 10 10.4 104. 85-115 WG667072 Chromium,Dissolved mg/1 1 1.03 103. 85-115 WG667072 Copper,Dissolved mg/1 1 0.983 98.3 85-115 W8667072 Iron,Dissolved mg/1 1 1.01 101. 85-115 W0667072 Lead, Dissolved mg/1 1 1.01 101. 85-115 W0667072 Magnesium,Dissolved mg/1 10 10.6 106. 85-115 WG667072 Manganese,Dissolved mg/1 1 1.05 105. 85-115 W0667072 Potassium,Dissolved mg/1 10 9.30 93.0 85-115 W8667072 Selenium,Dissolved mg/1 1 1.00 100. 85-115 110667072 Silver,Dissolved mg/1 1 0.966 96.6 95-115 WG667072 Sodium, Dissolved mg/1 10 9.87 98.7 85-115 WG567072 Ammonia Nitrogen mg/1 7.5 7.67 102, 90-110 W0666204 Laboratory Control Sample Duplicate Analyte Units Result Ref %Roc Limit RPD Limit Batch Bromide mg/1 39.8 39.9 100. 90-110 0.251 20 W0665784 Chloride mg/1 39.9 39.9 100. 90-110 0 20 W0665784 Fluoride mg/1 8.04 8.01 100. 90-110 0.374 20 WG665784 Nitrate mg/1 8.01 8.02 100. 90-110 0.125 20 W0665784 Nitrite mg/1 7.97 7.97 100. 90-110 0 20 WG665784 Sulfate mg/1 39.6 39.5 99.0 90-110 0.253 20 WG665784 . Performance of this Analyte is outside of established criteria. For additional information, please see Attachment A 'List of Analytes with QC Qualifiers.' Page 8 of 12 *ESC L•A-B S•C-1•E'N•C4E,S YOUR L A B OF C H O I C E EnCana Oil & Gas Inc. - CC Dan Prokop 143 Diamond Avenue Parachute, CO 81635 Quality Assurance Report Level II L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5658 1-800-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814269 Est. 1970 June 19, 2013 Analyte Laboratory Control Sample Duplicate Units Result Ref %Rec Limit RPD Limit Batch TPH (GC/FID) Low Fraction a, a, a-Trifluorotoluene(FID) Ethane Ethene Methane Sulfide pH Benzene Ethylbenzene Methyl tert-butyl ether Toluene Total Xylenes 4-Bromofluarobenzene Dibromofluoromethane Toluene -d8 Dissolved Solids Alkalinity Specific Conductance Ammonia Nitrogen mg/1 5.93 5.14 mg/1 0.705 0.693 mg/1 0.676 0.668 mq/1 0.366 0.366 mg/1 0.502 0.513 su 5.80 5.80 mg/1 mg/1 mg/1 mg/1 mg/1 0.0277 0.0260 0.0279 0.0256 0.0221 0.0211 0.0268 0.0253 0.0823 0.0772 mg/1 8800 8700 mg/1 98.5 100. umhos/ 890. 890. mg/1 7.48 7.67 108. 70-124 14.2 20 WG666248 102.0 62-128 WG666248 109. 70-130 1.67 25 WG666145 106. 70-130 1.07 25 WG666145 108. 70-130 0.540 25 WG666145 100. 85-115 2.17 20 W0666211 100. 98.3-101.7 0 20 WG666307 111. 72-119 6.32 20 WG665952 112. 77-124 8.42 20 WG665952 88.0 67-127 4.58 20 WG665952 107. 75-114 6.01 20 WG665952 110, 77-123 6.39 20 WG665952 101.1 82-120 WG665952 105.2 62-126 WG665952 101.8 92-112 W0665952 100. 85-115 1.14 5 W0666212 96.0 85-115 1.51 20 WG666318 101. 85-115 0 20 W0666664 100. 90-110 2.51 20 WG666204 Analyte Matrix Spike Units MS Res Ref Res TV 4 Rec Limit Ref Samp Batch Chloride Nitrate Sulfate TPH (GC/FID) Low Fraction a, a, a-Trifluorotoluene(FID) Sulfide Benzene Ethylbenzene Methyl tert-butyl ether Toluene Total Xylenes Alkalinity * Performance of this Analyte For additional information, mg/1 51.1 2.10 mg/1 4.80 0.240 mg/1 83.6 39.0 mg/1 5.85 0.342 mg/1 1.03 0 mg/1 0.0264 0 mg/1 0.0256 0 mg/1 0.0276 0 mg/1 0.0255 0 mg/1 0.0767 0 50 98.0 80-120 L640281-01 WG665784 5 91.2 60-120 L640281-01 WG665784 50 89.2 80-120 L640281-01 WG665784 5.5 100. 55-109 L640876-03 WG666248 102.4 62-126 WG666248 1 103. 80-120 L640261-03 WG666211 .025 105. 51-134 L640223-01 W0665952 .025 102. 64-135 L640223-01 190665952 .025 110. 55-136 L640223-01 W0665952 .025 102. 61-126 L640223-01 WG665952 .075 102. 64-133 L640223-01 W0665952 mg/1 260. 190. 100 is outside of established criteria. please see Attachment A 'List of Analytes with QC Qualifiers.' 70.0* 80-120 L640427-01 WG666318 Page 9 of 12 *ESC L A -B S.C. 1. E. N. C:E.S YOUR LAG OF CHOICE EnCana Oil & Gas Inc. - OG Dan Prokop 143 Diamond Avenue Parachute, CO 81635 Quality Assurance Report Level II L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5858 1-800-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 June 19, 2013 Analyte Matrix Spike Units MS Res Ref Res TV % Rec Limit Ref Samp Batch Arsenic,Dissolved mg/1 1.01 0.00490 1 100. 75-125 L640905-09 WG667072 Barium,Dissolved mg/1 1.08 0.0414 1 104. 75-125 L640905-09 WG667072 Cadmium,Dissolved mg/1 1.02 0.000500 1 102. 75-125 L640905-09 WG667072 Calcium,Dissolved mg/1 146. 140. 10 60.0* 75-125 L640905-09 WG667072 Chromium,Dissolved mg/1 1.01 0.00110 1 101. 75-125 L640905-09 WG667072 Ccpper,Dissolved mg/1 1.01 0 1 101. 75-125 L640905-09 WG667072 Iron,Dissolved mg/1 1.02 0 1 102. 75-125 L640905-09 WG667072 Lead,Dissolved mg/1 1.00 0 1 100. 75-125 L640905-09 WG667072 Magnesium, Dissolved mg/1 34.4 24.0 10 104. 75-125 L640905-09 WG667072 Manganese,Dissolved mg/1 1.60 0.563 1 104. 75-125 L640905-09 WG667072 Potassium,Diaaalved mg/1 14.8 5.30 10 95.0 75-125 L640905-09 WG667072 Selenium,Dissolved mg/1 1.02 0 1 102. 75-125 L640905-09 WG667072 Silver,Dissolved mg/1 0.980 0.000100 1 98.0 75-125 L640905-09 W6667072 Sodium, Dissolved nig/1 21.2 12.0 10 92.0 75-125 L640905-09 WG667072 Ammonia Nitrogen mg/1 4.86 0 5 97.2 90-110 1640427-01 WG666204 Matrix Spike Duplicate Analyte Units 573D Ref %Rec Limit RPD Limit Ref Samp Batch Chloride mg/1 50.9 51.1 97.6 80-120 0.392 20 L640281-01 WG665784 Nitrate mg/1 4.94 4.80 94.0 80-120 2.87 20 L640281-01 146665784 Sulfate mg/1 86.0 83.6 94.0 80-120 2.83 20 L640281-01 WG665784 TPH (GC/61D) Low Fraction a,a,a-Trifluorotoluene(FID) Sulfide mg/1 5.88 5.85 101. 55-109 0.450 20 L640876-03 WG666248 102.2 62-128 146666248 mg/1 0.984 1.03 98.4 80-120 4.57 20 L640281-03 WG666211 Benzene mg/1 0.0253 0.0264 101. 51-134 4.24 20 L640223-01 WG665952 Eth_ylbenzene mg/1 0.0248 0.0256 99.3 64-135 2.89 20 L640223-01 WG665952 Methyl tert-hutyl ether mg/1 0.0263 0.0276 105. 55-136 4.91 20 L640223-01 WG665952 Toluene mg/1 0.0247 0.0255 98.9 61-126 3.09 20 L640223-01 WG665952 Total Xylenes mg/1 0.0735 0.0767 98.0 64-133 4.25 20 L640223-01 WG665952 Alkalinity mg/1 260. 260. 70.0* 80-120 0 20 L640427-01 146668318 Arsenic,Dissolved mg/1 1.01 1.01 100. 75-125 0 20 L640905-09 WG667072 Barium,Dissolved mg/1 1.07 1.08 103. 75-125 0.930 20 L640905-09 W6667072 Cadmium,Dissolved mg/1 1.01 1.02 101. 75-125 0.985 20 L640905-09 WG667072 Calcium,Dissolved mg/1 147. 146. 70.0+ 75-125 0.683 20 L640905-09 1G667072 Chromium,Dissolved mg/1 1.01 1.01 101. 75-125 0 20 L640905-09 WG667072 Copper,Dissolved mg/1 0.991 1.01 99.1 75-125 1.90 20 L640905-09 WG667072 Iron,Dissolved mg/1 1.01 1.02 101. 75-125 0.985 20 L640905-09 WG667072 Lead,Dissolved mg/1 1.00 1.00 100. 75-125 0 20 L640905-09 WG667072 Magnesium,Dissolved mg/1 34.2 34.4 102. 75-125 0.583 20 L640905-09 WG667072 Manaanese,Dissolved mg/1 1.60 1.60 104. 75-125 0 20 L640905-09 W8667072 Potassium,Dissolved mg/1 15.0 14.8 97.0 75-125 1.34 20 L640905-09 WG667072 Selenium,Dissolved mg/1 1.03 1.02 103. 75-125 0.976 20 L640905-09 WG667072 Silver,Dissolved mg/1 0.967 0.980 96.7 75-125 1.34 20 L640905-09 WG667072 Sodium,Dissolved mg/1 21.9 21.2 99.0 75-125 3.25 20 L640905-09 WG667072 * Performance of this Analyte is outside of established criteria. For additional information, please see Attachment A 'List of Analytes with QC Qualifiers.' Page 10 of 12 *ESC L•A•O S•C•E•E•N•C.E.S YOUR LAO OR CHOICE EnCana Oil & Gas Inc. - CG Dan Prokop 143 Diamond Avenue Quality Assurance Report Level II Parachute, CO 81635 June 19, 2013 L640427 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615( 758-5858 1-800-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 Analyte Ammonia Nitrogen Matrix Spike Duplicate Units MSD Ref %Rec Limit RPD Limit Ref Samp Batch mg/1 4.53 4.86 90.6 90-110 7.03 20 L640427-01 WG666204 Batch number /Run number / Samole number cross reference WG665784: R2704202: L640427-01 WG666248: R2706262: L640427--01 WG666145: R2706300: L640427-01 WG666211: R2706301: L640427-01 WG666307: R2706740: L640427-01 WG665952: 82707501: L640427-01 WG666212: R2707880: L640427-01 WG666318: 82708482: L640427-01 WG666315: R2709800: L640427-01 WG666316: R2709820: L640427-01 WG666664: R2710453: L640427-01 WG667072: 82712882: L640427-01 WG666204: R2712961: L640427-01 * * Calculations are performed prior to rounding of reported values. * Performance of this Analyte is outside of established criteria. For additional information, please see Attachment A 'List of Analytes with QC Qualifiers.' Page 11 of 12 *ESC L•A.B S.C. •N•C•6.5 YOUR -AB Of' CHUfCE EnCana 0il & Gas Inc. - CC Dan Prokop 143 Diamond Avenue Quality Assurance Report Level II Parachute, CO 81635 June 19, 2013 L640427 12065 Lebanon Rd. Net. Juliet, TN 37122 (615) 758-5858 1-800-767-5859 Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 The data package includes a summary of the analytic results of the quality control samples required by the SW -846 or CWA methods. The quality control samples include a method blank, a laboratory control sample, and the matrix spike/matrix spike duplicate analysis. If a target parameter is outside the method limits, every sample that is effected is flagged with the appropriate qualifier in Appendix B of the analytic report. Method Blank - an aliquot of reagent water carried through the entire analytic process. The method blank results indicate if any possible contamination exposure during the sample handling, digestion or extraction process, and analysis. Concentrations of target analytes above the reporting limit in the method blank are qualified with the "B" qualifier. Laboratory Control Sample - is a sample of known concentration that is carried through the digestion/extraction and analysis process. The percent recovery, expressed as a percentage of the theoretical concentration, has statistical control limits indicating that the analytic process is "in control". If a target analyte is outside the control limits for the laboratory control sample or any other control sample, the parameter is flagged with a "J4" qualifier for all effected samples. Matrix Spike and Matrix Spike Duplicate - is two aliquots of an environmental sample that is spiked with known concentrations of target analytes. The percent recovery of the target analytes also has statistical control limits. If any recoveries that are outside the method control limits, the sample that was selected for matrix spike/matrix spike duplicate analysis is flagged with either a "J5" or a "J6". The relative percent difference ($RPD) between the matrix spike and the matrix spike duplicate recoveries is all calculated. If the RPD is above the method limit, the effected samples are flagged with a "J3" qualifier. Page 12 of 12