Loading...
HomeMy WebLinkAboutDRC-2012-001626 - 0901a068802e84ebDRC-2012-001626 DENISO MINES Denison Mines (USA) Corp 105017th Street, Suite 950 Denver, CO 80265 USA Tel 303 628-7798 Fax 303 389-4125 www denisonmines com June 28, 2012 VIA E-MAIL AND OVERNIGHT DELIVERY Mr Rusty Lundberg Department of Environmental Quality 195 North 1950 West PO Box 144850 Salt Lake City, UT 84114-4850 Re State of Utah Groundwater Discharge Permit ("GWDP") No UGW370004 Transmittal of Revised Sampling and Analysis Plan for Tailings Cells, Leak Detection Systems and Slimes Drains, Revision 2, dated June 28, 2012 Dear Mr Lundberg Attached please find Denison Mines (USA) Corp ("Denison"), Revised Sampling and Analysis Plan ("SAP") for Tailings Cells, Leak Detection Systems and Slimes Drains, Revision 2, dated June 28, 2012 The SAP was revised in response to a request from DRC Personnel dunng their visit to the White Mesa Mill on June 20, 2012 The request was made to improve the sampling procedures to improve safety dunng the annual sampling campaign required by the Groundwater Discharge Permit ("GWDP"), Part I E 10 Please contact me if you have any questions or require any further information Yours very truly. DENISON MINES (USA) CORP. Jo Ann Tischler Director, Compliance and Permitting cc David 0 Frydenlund Ron F Hochstein Harold R Roberts David E Turk KathyA Weinel Attachments White Mesa Uranium Mill SAMPLING AND ANALYSIS PLAN FOR TAILINGS CELLS, LEAK DETECTION SYSTEMS AND SLIMES DRAINS state of Utah Groundwater Discharge Permit No. UGW370004 Prepared by Denison Mines (USA) Corp. Suite 950, 1050 17* Street Denver CO 80265 June 28, 2012 Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 Contents 1 0 Introduction 3 2 0 Sampling Frequency and Monitoring Requirements 3 3 0 Field Sampling Procedures 3 3 1 Tailings Cell Sampling 4 3 11 Sampling with a Peristaltic Pump 4 3 12 Sampling with a Ladle 5 3 13 Sampling with a Bailer 5 3 2 LDS Sampling 5 3 2 1 Cells 1,2 and 3 LDS 5 3 2 2 Cells 4A and 4B LDS 5 3 3 Slimes Drain Sampling 5 3 4 Field Data 6 3 5 Decontamination 6 3 6 Field QC 6 3 6 1 Sample Duplicates 7 3 6 2 Trip Blanks 7 3 6 3 Rinsate Blank Samples 7 4 0 QA and Data Evaluation 7 5 0 Laboratory Analysis 7 5 1 Analytical Quality Control 8 6 0 Reporting 8 7 0 Agency Notification 9 Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 1.0 Introduction This Samphng and Analysis Plan ("SAP") descnbes the procedures for sampling the tailings cells. Leak Detection Systems ("LDS") and slimes drams at the White Mesa Mill in Blanding, Utah as required under Part IE 10 of the Groundwater Discharge Permit ("GWDP") No UGW370004 The objective of the tailings cell, LDS and slimes dram sampling is to collect annual samples from the locations identified below as required by the GWDP This SAP specifies the sample collection requirements, procedures, analytical methodologies, and associated Quality Control ("QC") checks, sample handling protocols and reporting requirements for the annual tailings, LDS and slimes drain sampling program 2.0 Sampling Frequency and Monitoring Requirements The sampling frequency and sample monitoring requirements for the tailings cells, LDS and slimes drains are as specified in the GWDP Sampling is required to be conducted on an annual basis in August of each year for the solutions in tailings Cells 1, 3, 4A, and 4B, the solutions in the slimes drains m Cells 2, 3,4A, and 4B (for Cells 3, 4A, and 4B after the commencement of dewatering), the solutions m the LDS in Cells 4A and 4B and any detected solutions in the LDS in Cells 1, 2, and 3 at the time of the August sampling event Sampling locations are shown in Attachment 1 3.0 Field Sampling Procedures The field sampling and data collection program will obtain samples to be analyzed for the groundwater compliance parameters listed in Table 2 of the GWDP Analyses will be completed by a State of Utah certified laboratory using methods specified in the currently approved Denison Quality Assurance Plan ("QAP") for Groundwater Additionally per the GWDP requirements, tailings cell, LDS and slimes dram samples will be collected and analyzed for Semivolatile Organic Compounds ("SVOCs") Per the GWDP, the SVOCs will be analyzed by Environmental Protection Agency ("EPA") Method 8270D Minimum detection limits or reporting limits for tailings, LDS and slimes drain samples for those analytes which have Groundwater Quality Standards (GWQSs") defined in Table 2 of the GWDP, will be less than or equal to the GWQS The minimum detection or reporting limits for total dissolved solids ("TDS") sulfate, chloride and SVOCs are specified in the GWDP and are • TDS will be less than or equal to 1,000 mg/L, • Sulfate will be less than or equal to 1,000 mg/L, • Chlonde will be less than or equal toi mg/L, and • SVOCs will have reporting limits less than or equal to the lower limit of quantitation for groundwater listed in Table 2 of EPA Method 8270D Revision 4, dated February 2007 Field activities include collecting samples, recording field data and field parameters, and prepanng and shipping samples to the analytical laboratory Sampling information will be recorded on the Tailings and Slimes Dram Field Sheet, (or its equivalent), included in Attachment 2 Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 Sample handling and preservation requirements for tailings cell, LDS and slimes dram samples are as specified in the QAP, except for SVOCs which are not routinely collected for any other Mill sampling program SVOCs do not require any chemical preservation per EPA Method 8270D, however, SVOCs are required to be chilled Receipt temperatures, for all analytes except SVOCs, are as specified in the QAP The receipt temperature requirement for SVOCs is less than or equal to 6°C Sample collection procedures for tailings cell, LDS and slimes dram samples are as descnbed below Where more than one sampling method is descnbed, field personnel will choose a sampling method based on field conditions and safety considerations at the time of sampling The gross alpha and metals sample aliquots from the tailings cells, LDSs and slimes drains will not be field filtered or field preserved due to safety concems associated with the filtenng apparatus and the backpressure created by the increased viscosity of these samples The gross alpha and metals aliquots will be filtered and preserved by the analytical laboratory within 24 hours of receipt Field preservation of the gross alpha and metals sample aliquots may interfere with the laboratory's ability to filter the samples upon receipt It is important to note that field preservation of the samples is to preclude biological growth and prevent the inorganic analytes from precipitating Based on the 2011 field data, the tailings, LDS and slimes drain samples were at a pH of 3 0 or less at the time of collection without additional preservative The addition of preservatives in the field would add minimal if any protection from biological growth or precipitation The VOC sample aliquots will be preserved in the field Clean sample containers utilized for this sampling effort will be provided by the analytical laboratory 3 1 Tailings Cell Sampling As noted in Section 2 0, sampling is required to be conducted on an annual basis in August of each year for the soluUons in tailings Cells 1, 3, 4A, and 4B Tailings cell samples may be collected using a ladle, a peristaltic pump or a bailer The procedures for each sampling method are descnbed below In all instances the sampling equipment will be either disposable or dedicated and decontamination procedures and nnsate blanks will not be required Sampling equipment will be inert and non-reactive 3 1 1 Sampling with a Peristaltic Pump Tailings samples may be collected using a penstaltic pump Samples collected with the penstaltic pump will be collected by extending collection tubing approximately 6 ft from the edge of the sampling station The tubing will be attached to a horizontal rod with sufficient tubing attached to lower the suction end of the tubing to approximately 1/3 of the distance between the liquid surface and the underlying solids The collection tubing will be attached to a penstaltic pump The tubing will be replaced pnor to each use to preclude cross contamination and to eliminate the need for decontamination of sampling equipment Due to the nature of the penstaltic pump, sample fluids do not come in contact with any surface other than the intenor of the tubing, and decontamination of the pump or nnsate blanks is therefore not required The sample containers will be filled directly from the penstaltic pump outflow Field filtering and field preservation of the gross alpha and metals sample aliquots will not be required, as noted in Section 3 0 Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 3 1 2 Sampling with a Ladle Tailings samples may be collected using a ladle Samples collected with the ladle will be collected by dipping the ladle directly into the tailings solution taking care not to stir up any solids below the liquid surface Sample bottles will be filled directly from the ladle Ladles used for sampling will be dedicated to each location or will be disposed after each use to preclude cross contamination and to eliminate the need for decontamination of sampling equipment Field filtenng and field preservation of the gross alpha and metals sample aliquots will not be completed as noted in Section 3 0 3 13 Sampling with a Bailer Tailings samples may be collected using a disposable bailer Samples collected with the bailer will be collected by submerging the bailer into the tailings solution and allowing it to fill, taking care not to stir up any solids below the liquid surface The bailer will withdrawn from the tailings solution and the sample bottles will be filled directly from the bailer Bailers used for sampling will be disposed after each use to preclude cross contamination and to eliminate the need for decontamination of sampling equipment Field filtenng and field preservation of the gross alpha and metals sample aliquots will not be required as noted in Section 3 0 3 2 LDS Sampling The LDS systems will be sampled as noted below 3 2 1 Cells 1,2 and 3 LDS The Cells 1, 2 and 3 LDSs will only be sampled if there is fluid present during the August sampling event If fluids are present during the annual August sampling event, samples will be collected using the dedicated pumps installed in the nser pipe Fluid level will be measured using the electronic pressure transducers currently installed in the LDS systems in the Cells Samples will be collected directly from the pump outflow lines into the sample containers Field filtenng and field preservation of the gross alpha and metals sample aliquots will not be required as noted in Section 3 0 3 2 2 Cells 4A and 4B LDS Solution from the Cell 4A and 4B LDS will be collected into a dedicated stainless steel bucket Sample botdes will be filled from the stainless steel bucket using either the penstaltic pump or a ladle If the peristaltic pump is used to transfer the solution to the sample bottles, the tubing in the pump will be disposed of and not reused, thereby eliminating the need for decontamination of equipment or nnsate blanks If a ladle is used to transfer the solution to the sample bottles, the ladle will be either disposed of or will be dedicated to that location thereby eliminating the need for decontamination or nnsate blanks Field filtenng and field preservation of the gross alpha and metals sample aliquots will not be required as noted m Section 3 0 3 3 Slimes Dram Sampling Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 Once a tailings cell has started de-watenng procedures, a sample should be collected from the slimes drain system At this time Cell 2 is the only slimes dram that should be sampled The location of the slime dram for Cell 2 is depicted on Attachment I While Cell 3,Cell 4A and 4B are each equipped with a slimes dram sample access location, these Cells have not started dewatering and the slimes dram will not be sampled until dewatenng operations are underway Because dewatenng m Cell 2 is ongoing, this cell will be included in the annual sampling effort The Cell 2 slimes drain will be sampled using a disposable bailer The Cell 2 slimes dram will be sampled such that representative fluids are collected Accordingly, samples will only be collected from this location when the pump has been operating in accordance with the approved operating plan for a minimum of 48 hours prior to sampling in order to assure that the system is purged and is producing representative fluids The sampling personnel must take care not to disturb the sediment in the bottom of the drain A disposable bailer will be used to collect Cell 2 slimes drain samples and will be used to fill clean sample containers The bailer will be disposed of and not reused, thereby eliminating the need for decontamination of equipment or nnsate blanks 3 4 Field Data In addition to the analytical parameters noted above, field data will be recorded at the time of sample collection Field parameters required by the GWDP include pH, specific conductance and temperature One vanance from the requirements in the Permit will be implemented The Permit, Section IE 10 (d) I) requires the collection of field pH, temperature and conductivity A field pH and temperature measurement will be collected at the time of sample collection using pH paper and a glass thermometer respectively Conductivity will be measured by one of the Mill's contracted laboratones Dunng a previous sampling event the tailings wastewater solutions corroded the field meter after the collection of the first set of measurements which resulted in the loss of the meter and erroneous measurements following the first sample To prevent equipment damage and loss of measurements, conductivity will no longer be measured in the field The laboratory will be able to complete the conductivity measurements because the instruments in use by the laboratones are "sturdier", suitable for corrosive solutions, and less apt to be affected by the tailings wastewater solutions 3 5 Decontamination Decontamination of sampling equipment will be completed if non-dedicated and/or non-disposable sampling equipment is used to collect samples Decontamination procedures will be as descnbed in the approved QAP Rinsate blanks will be collected daily after decontamination of sampling equipment If disposable or dedicated sampling equipment is used to collect samples, then nnsate blanks will not be collected 3 6 Field QC The field QC samples generated dunng the annual tailings cell, LDS and slimes drain sampling event will include sample duplicates, trip blanks, and nnsate blank samples as appropnate Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 3 6 1 Sample Duplicates Sample duplicates will be collected at a frequency of one duplicate per 20 field samples Sample duplicates will be collected by filling the sample container for a certain analytical parameter for the duplicate immediately following the collection of the parent sample for that parameter 3 6 2 Tnp Blanks Tnp blank samples will be included in every shipment of samples that has field samples to be analyzed for Volatile Organic Compounds ("VOCs") Tnp blank samples are VOC sample containers filled by the analytical laboratory with laboratory grade deionized water and shipped to the site Trip blank samples are taken into the field with the sample containers, never opened, and kept with the field samples from collection through shipment to the analytical laboratory for analysis Trip blanks are analyzed to determine if the sample concentration of VOCs have been effected by the "tnp" from collection through shipment 3 6 3 Rinsate Blank Samples Rinsate blank samples are collected at a frequency of one per day when non-disposable, non-dedicated, reusable sampling equipment is used to collect samples If the sampling equipment has a disposable component that comes in contact with the samples and the component is changed prior to sampling at each location then a nnsate blank sample will not be collected For example, if a peristaltic pump is used to collect and filter tailings, LDS and slimes dram samples and the tubing used in the penstaltic pump is changed at each location and never reused for more than one sample, no nnsate blank sample would be required 4.0 QA and Data Evaluation The Permit requires that the annual tailings cell LDS and slimes dram sampling program be conducted in compliance with the requirements specified in the Mill's approved QAP, the approved SAP and the Permit itself To meet this requirement, the data validation for the tailings cell LDS and slimes dram sampling program will utilize the requirements outlined in the QAP, the Permit and the approved SAP as applicable The Mill QA Manager will perform a QA/QC review to confirm compliance of the monitoring program with requirements of the Permit, QAP and SAP As required in the QAP, data QA includes preparation and analysis of field QC samples, review of field procedures, an analyte completeness review, and quality control review of laboratory data methods and data The QAP and the Permit identify the data validation steps and data quality control checks required for the tailings cell LDS and slimes drain monitonng program Consistent with these requirements, the Mill QA Manager will performed the following evaluations a field data QA/QC evaluation, a receipt temperature check, a holding time check, an analytical method check, a reporting limit check, a tnp blank check, a QA/QC evaluation of sample duplicates, a gross alpha counting error evaluation and a review of each laboratory's reported QA/QC information The conective action procedures descnbed in the approved QAP will be followed as necessary when data validation and QC reviews indicate a non-compliant situation 5.0 Laboratory Analysis Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 As previously stated, samples will be analyzed for the groundwater compliance parameters listed in Table 2 of the GWDP and SVOCs using the analytical methods specified in the approved QAP and EPA Method 8270D for SVOCs The Laboratones used for the tailings cell LDS and slimes dram sampling program will be Utah certified as required by the GWDP Part 1 E 6 (c) Laboratory data will be validated as described in the approved QAP and as descnbed in Section 4 0 above Analytical QC is descnbed below 5 1 Analytical Quality Control Analytical QC samples and protocols are described in the approved QAP Laboratory QC procedures will meet, at a minimum, the requirements set forth in the analytical methods that the laboratory is certified for by the State of Utah The analytical QC samples included at least the following a method blank, a laboratory control spike ("LCS"), a matnx spike ("MS") and a matnx spike duplicate ("MSD"), or the equivalent, where applicable It should be noted that Laboratory fortified blanks are equivalent to LCSs Laboratory reagent blanks are equivalent to method blanks Post digestion spikes are equivalent to MSs Post digestion spike duplicates are equivalent to MSDs For method E900 1, used to determine gross alpha, a sample duplicate was used instead of a MSD All qualifiers, and the corresponding explanations reported in the QA/QC Summary Reports for any of the analytical QC samples for any of the analytical methods will be reviewed by the Mill QA Manager The effect on data usability will be discussed in the evaluation section of the annual report 6.0 Reporting A Tailings Cells Wastewater Quality Sampling Report will be included with the 3"^^ Quarter Groundwater Monitoring Report, due each year on December Each Tailings Cell Wastewater Sampling Report will include the following information • Introduction, • A descnption of sampling methodology, equipment and decontamination procedures identify all quality assurance samples, e g trip blanks, equipment blanks, duplicate samples, • Analytical data interpretation for each tailing cell, shmes drain, and leak detection system sample, • A wntten summary and conclusions of analytical results, • A table summarizing histonc analytical results, • A QA evaluation, • All field data sheets accompanying the sampling event. Tailings Cell, Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28, 2012 • Copies of the laboratory reports, and • A "Tailings and Slime Drains System Sample Locations Map" 7.0 Agency Notification At least 30 days advanced notice will be given to DRC prior to sampling activities descnbed under this Tailings and Slimes Drain Sampling Program in order to allow the Executive Secretary to collect split samples of all tailing cell wastewater sources Attachment 1 10 PiEZ'2 PIEZ-3 TW4-20 OTW4-5 -26TW4.1(F™'^-3 O OTW4-3 OTW4-12 arW4-1%)TvV4-11 OTW4-13 TW4-75?|K^.8 0TW4.1 arw4-4 OTW4.14 MW-03 C3TW4-6 PIEZ-5 MW-17 SCALE 1 31000' Denison Mines (USA) Corp WH\%0\F^kk MINES REVISIONS Proiect vVhite Mesa Mill Date By County San Juan j ^^^'^ UT 10-08 GM Location ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS A""^""- unknown Aug 2008 . 0 soo SCALE 1 a1000 Denison Mines (USA) Corp DENISOl/Dil^ MINES REVISIONS proiect White Mesa Mill Date By County San Juan j UT 10-08 GM Locaiibn SLIMES AND LEAK DETECTION SAMPLE LOCATIONS SLIMES AND LEAK DETECTION SAMPLE LOCATIONS SLIMES AND LEAK DETECTION SAMPLE LOCATIONS SLIMES AND LEAK DETECTION SAMPLE LOCATIONS SLIMES AND LEAK DETECTION SAMPLE LOCATIONS unknown "^"^ Aug 2008 """^^'^ Attachment 2 11 Field Data Record-Tailings, LDS and Slimes Drain Sampling Location: Sampling Personnel:. Is this a Slimes Drain? • Yes • No If this is a Slimes Drain, measure depth to wastewater immediately before sampling. DTW immediately before samphng (slimes only): Weather Conditions at Time of Sampling: Field Parameter Measurements: -pH -Temperature (°C) Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Sampling Method Lab Name Parameter Sample Taken Filtered Peristaltic Pump Bailer Ladle Lab Name VOCs • Yes • No • Yes • No • • • THE • Yes • No • Yes • No • • • Nutrients • Yes • No • Yes • No • • • Other Non Radiologics • Yes • No • Yes • No • • • Gross Alpha • Yes • No • Yes • No • • • SVOCs • Yes • No • Yes • No • • • Conductivity • Yes • No • Yes • No • • • QC Samples Associated with this Location: • Rinsate Blank • Duplicate Duplicate Sample Name Notes: REDLINE Revision 0 Novombor 20. 2008 Pago 1 of 5 Tailings and Slimos Drain Sampling Program White Mesa Uranium Mill SAMPLING AND ANALYSIS PLAN FOR TAILINGS CELLS, LEAK DETECTION SYSTEMS AND SLIMES DRAINS State of Utah Groundwater Discharge Permit No. UGW370004 Prepared by Denison Mines (USA) Corp. Suite 950, 1050 l?'^ Street Denver CO 80265 June 278,2012 Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 Contents 1 0 Introduction 3 2 0 Sampling Frequency and Monitoring Requirements 3 3 0 Field Sampling Procedures 3 3 1 Tailings Cell Sampling 4 3 1 1 Sampling with a Peristaltic Pump 54 3 1 2 Sampling with a Ladle 5 3 1 3 Sampling with a Bailer 6& 3 2 LDS Sampling 65 32 1 Cells 1,2 and 3 LDS 65 3 2 2 Cells 4A and 4B LDS 65 3 3 Slimes Drain Sampling 65 3 4 Field Data 86 3 5 Decontamination 86 3 6 Field QC 86 3 6 1 Sample Duplicates 97 3 6 2 Tnp Blanks 97 3 6 3 Rinsate Blank Samples 97 4 0 QA and Data Evaluauon 107 5 0 Laboratory Analysis 107 5 1 Analytical Quality Control 108 6 0 Reporting 128 7 0 Agency Notification 129 Tailings Cell. Leak Detections Svstem and Slimes Dram Sampling and Analysis Plan Revision 2 June 28. 2012 1 0 Introduction -( Formatted Heading 1 This Sampling and Analysis Plan ("SAP"") descnbes the procedures for samphng the tailings cells. Leak* Detection Systems ("LDS") and slimes drains at the White Mesa Mill in Blanding. Utah as required under Part I E 10 of the Groundwater Discharge Pemnt ("GWDP") No UGW370004 The objective of the tailings cell. LDS and shmes drain sampling is to collect annual samples from the locations identified below as required bv the GWDP This SAP specifies the sample collection requirements, procedures, analytical methodologies, and associated Quality Control ("OC") checks, sample handling protocols and reporting requirements for the annual tailings. LDS and slimes dram sampling program 2 0 Sampling Frequency and Monitonng Requirements A___ The samphng frequency and sample monitoring requirements for the tailings cells. LDS and shmes drains are as specified in the GWDP Sampling is required to be conducted on an annual basis in August of each year for the solutions in tailings Cells 1. 3.4A. and 48. the solutions in the shmes drains in Cells 2. 3.4A. and 43 (for Cells 3. 4A. and 48 after the commencement of dewatering). the solutions m the LDS m Cells 4A and 48 and any detected solutions in the LDS in Cells 1. 2. and 3 at the time of the August sampling event Sampling locations are shown m Attachment 1 3 0 Field Sampling Procedures The field sampling and data collection program will obtain samples to be analyzed for the groundwater compliance parameters hsted m Table 2 of the GWDP Analyses will be completed bv a State of Utah certified laboratory using methods specified in the currently approved Denison Quality Assurance Plan ("QAP") for Groundwater Additionally per the GWDP requirements, tailings cell. LDS and shmes drain samples will be collected and analyzed for Semivolatile Organic Compounds ("SVQCs") Per the GWDP. the SVOCs will be analyzed by Environmental Protection Agencv ("EPA") Method 8270D Minimum detection limits or reporting limits for tailings. LDS and shmes drain samples for those analytes which have Groundwater Quality Standards (GWQSs") defined m Table 2 of the GWDP. will be less than or equal to the GWQS The minimum detection or reporting limits for total dissolved solids CTDS") sulfate, chloride and SVQCs are specified in the GWDP and are • TDS will be less than or equal to 1.000 mg/L. • Sulfate will be less than or equal to 1.000 mg/L. • Chloride will be less than or equal toi mg/L. and • SVQCs will have reporting limits less than or equal to the lower limit of quantitation for groundwater listed in Table 2 of EPA Method 8270D Revision 4. dated Februarv 2007 A Field activities include collecting samples, recording field data and field parameters, and preparing and shipping samples to the analytical laboratorv Sampling information will be recorded on the Tailings and Shmes Drain Field Sheet, (or its equivalent), included in Attachment 2 -{Formatted Font 11 pt -f Formatted Justified -[Formatted Font 11 pt -(Formatted Font 11 pt Formatted Justified, Bulleted + Level 1 + Aligned at 0 25" + Indent at 0 5" Formatted Font 11 pt Formatted Justified ( Formatted Font 11 pt Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 Sample handling and preservation requirements for tailings cell. LDS and slimes drain samples are as specified in the QAP. except for SVQCs which are not routinely collected for anv other Mill sampling program SVQCs do not require any chemical preservation per EPA Method 8270D. however. SVQCs are required to be chilled Receipt temperatures, for all analytes except SVQCs. are as specified in the QAP The receipt temperature requirement for SVQCs is less than or equal to 6°C Sample collection procedures for tailings cell. LDS and slimes drain samples are as described below Where more than one sampling method is described, field personnel will choose a sampling method based on field conditions and safety considerations at the time of sampling The gross alpha and metals sample aliquots from the tailings cells. LDSs and slimes drains will not be field filtered or field preserved due to safety concerns associated with the filtering apparatus and the backpressure created by the increased viscosity of these samples The gross alpha and metals aliquots will be filtered and preserved by the analytical laboratory within 24 hours of receipt Field preservation of the gross alpha and metals sample aliquots may interfere with the laboratory's ability to filter the samples upon receipt It is important to note that field preservaUon of the samples is to preclude biological growth and prevent the inorganic analytes from precipitating Based on the 2011 field data, the tailings. LDS and shmes drain samples were at a pH of 3 0 or less at the time of collection without additional preservative The addition of preservatives m the field would add minimal if anv protection from biological growth or precipitation The VQC sample aliquots will be preserved in the field Clean sample containers utilized for this sampling effort will be provided by the analytical laboratory The sampling of tho Tailings and Shmes Drain Systems at the White Mesa Mill facility will require the use of the following oquipmont 1) Mastcrflox L/S variable flow rate peristaltic pump 2) InGrt Tygon*" Tubing suitable for use with the peristaltic pump 3) Samplo collection bottles for Inorganic, Volatile and Scmi Volatile Organic Compounds (as provided by an independent laboratory) Information will bo gathered during the event and recorded on a Tailings and Shmes Drain Field Sheet, Attachment 2 [Formatted Bullets and Numbering Field related parameters will bo analyzed by tho outside independent laboratory—These parameters will include pH and spceific conductanco l)Tailing Cell Sampling 3 I Tailings Cell Sampling As noted in Section 2 0. The following locations shall be sampled on an annual basis 1) Coll #1—samples will bo collected off of the pumping raft (southeast comer of tailings coll) 2) Ccll tf3—samples will be coUoctod off of the pumping raft (south sido of tailings cell) 3) Coll tf4A samples will bo collected off of tho pumping raft (southwest corner of tailings cell) sampling is required to be conducted on an annual basis in August of each year for the solutions in tailings Cells 1. 3.4A. and 48 Formatted Justified, Indent Left 0 5", No bullets or numbering Formatted Bullets and Numt)ering Formatted Heading 2, Justified, Indent Left 0" Formatted Justified Formatted Justified, No bullets or numt)enng ) Formatted Bullets and Numbering Tailings Cell. Leak Detections Svstem and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 ;\n Environmontaj Technician (or whomoyor the RSO assigns to_9pg4MPl ^9 soniphng) wijljiroceed to the tailings cell(s) and collect tho needed samples at predetermined locations as indicated in Attachment i—The samples Tailings cell samples may be collected using a ladle, a peristaltic pump or a bailer The procedures for each sampling method are described below In all instances the sampling equipment will be either disposable or dedicated and decontamination procedures and nnsate blanks will not be required Sampling equipment will be inert and non-reactive •{ Formatted Justified - -{ Formatted Font 11 pt ~\ Formatted Font 11 pt 3 1 1 Sampling with a Peristaltic Pump [ Formatted Heading 3 Xajlings. samples may be collected u^sinj: ajenstalnc pun^ _S_amples gqllectgd with the peristajti^c pump will be collected by extending the-collection tubing approximately 6 ft from the edge of the sampling station The tubing will be attached to a honzontal rod with sufficient tubing attached to lower the suction end of the tubing to approximately 1/3 of the distance up from between the underlying solids and tho water surfacoliquid surface and the underlying solids The collection tubing will be attached to a peristaltic pump The tubing will be replaced prior to each use to preclude cross contamination and to ehrmnate the need for decontamination of sampling equipment Due to the nature of the peristaltic pump, sample fluids do not come in contact with anv surface other than the intenor of the tubing, and decontamination of the pump or rinsate blanks is therefore not required - This distance will be confirmed by sounding prior to sample collection Once the appropriate sample volume has been collected, the technician will discard tho tubing utilized for that sample site and replace it with clean (un used) tubing prior to collecting the next sample Because the peristaltic pump (by virtue of its design) does not contact tho water sampled, and because inort and un used tubing will be used at each individual aompling station, equipment rinsing will not bo required and attendant nnsate sampling will bo unnecessary Clean sample containers utilized for this sampling effort will be provided by the contracted analytical laboratory The sample containers will be filled directly from the peristaltic pump outflow Field filtering and field preservation of the gross alpha and metals sample aliquots will not be required^as noted in Secti^on 3 0 Samples collocted from this effort will be submitted to an outside independent laboratory for analysis as required by tho Ground Water Discharge Permit (GWDP) with the State of Utah—Tailings sample locations are depicted on Attachment A to this procedure Samples collected for inorganic analyses will bo stored in plastic sample containers which could be subject to damage due to off gassing of samples collected from tailings colls Accordingly, these samples will be provided with o one inch head space and will be stored at < 6^C pnor to analyses as a means of precluding off gas damage or loss of sample contents—With regard to the samples collected for Volatile and Semi Volatile Organic Compounds (VQC and SVQC), these containers are glass and will not bo subject to potential damage from off gassing For this reason, and because VQC and Semi VQC samples cannot be exposed to air during storage, those containers will bo filled in such a manner as to fulfill the zero headspace requirement attendant to this analytical regimen—However, just as for tho inorganic samples, VQC and Semi VQC samples will bo stored at!- 6^ C prior to analyses—All volatile compounds will be analyzed by EPA method 8260B and Semi Volatile compounds will bo analyzed by moans of EPA method 8270 3 12 Sampling with a Ladle Tailings samples may be collected using a ladle Samples collected with the ladle will be collected by dipping the ladle directly into the tailings solution taking care not to stir up any solids below the liquid surface Sample bottles will be filled directly from the ladle Ladles used for sampling will be dedicated -( Formatted Font 11 pt. Underline "{Formatted Font 11 pt -{Formatted Font 11 pt Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 to each location or will be disposed after each use to preclude cross contamination and to eliminate the need for decontamination of sampling equipment Field filtering and field preservation of the gross alpha and metals sample aliquots will not be completed as noted in Section 3 0 3 1 3 Sampling with a Bailer • [Formatted Heading 3, Left_ 4 - - -( Formatted Font 11 pt Tailings samples may be collected using a disposable bailer Samples collected with the bailer will be collected by submerging the bailer into the tailings solution and allowing it to fill^ taking care not to stir , - -( Formatted Font 11 pt up any solids below the liquid surface The bailer will withdrawn from the tailings solution and the sample bottles will be filled directly from the bailer Bailers used for sampling will be disposed after each use to preclude cross contaminanon and to eliminate the need for decontamination of sampling equipment Field filtering and field preservation of the gross alpha and metals sample aliquots will not be requirec^ as noted jn Sectjqn 3 0 - -{ Formatted Font 11 pt 3 2 LDS Sampling The LDS systems will be sampled as noted below Revision 0 Novombor 20, 2008 Page 4 of 5 32 1 Cells 1.2 and 3 LDS The Cells 1. 2 and 3 LDSs will only be sampled if there is fluid present during the August sampling event If fluids are present dunng the annual August sampling event^ samples will be coUected using the dedicated pumps installed in the riser pipe Fluid level^ wilj be measured using the electronic pressure transducers currently installed in the LDS systems in the Cells Samples will be collected directly from the pump outflow lines into the sample containers Field filtering and field preservation of the gross alpha and metals sample aliquots will not be required^as noted in Section 3 0 -( Formatted Heading 2, Justified -( Formatted Font 11 pt -{ Formatted Font 11 pt -{ Formatted Font 11 pt 3 2 2 Cells 4A and 48 LDS Solution from the Cell 4A and 48 LDS will be collected into a dedicated stainless steel bucket Sample bottles will be filled from the stainless steel bucket using either the peristaltic pump or a ladle If the penstaltic pump is used to transfer the solution to the sample bottles, the^ tubing in the pump will be _ - -[ Formatted Font ll pt disposed of and not reused, thereby eliminating the need for decontamination of equipment or nnsate blanks If a ladle is used to transfer the solution to the sample bottles, the ladle will be either disposed of or will be dedicated to that location thereby eliminating the need for decontamination or rinsate blanks Field filtering and field preservation of the gross alpha and metals sample aliquots will not be requirec^as noted in Section 3 0 -( Formatted Font 11 pt 343 3 Shmes Drain Sampling The following arc Slimes Drain locanons 1) Cell itl—located midway on tho south section of cell 2) Cell #3—located rmdway on the south section of coll 3) Ccll #4A—located at tho southwest comer of coll Formatted Heading 2, Justified, No bullets or numbering Formatted Bullets and Numbenng '[Formatted Justified -{ Formatted Bullets and Numbenng Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 Once a tailings cell has started de-watenng procedures, a sample should be collected from the shmes drain system At this time Cell 2 is the only Sslimes ©drain that should be sampled The location of the slime drain for Cell 2 is depicted on Attachment Al While Cell 3^ and Cell 4aA and 48 are each equipped with a slimes drain sample access locations, these Cells arc still activehave not started dewatering and the shmes drain will not be equipped with submersible pumping cquipmcntsampled until dewatering operations are underway, and pumping at this time may m fact jeopardize tho long term cffectiveneoo of tho shmes drain system Because dewatenng in Cell 2 is ongoing and pumping equipment is in place to properly purge the system and obtain a representative sample, this cell will be included in the annual sampling effort The sampling of the The Cell 2 slimes drain will consist of a dedicated sampling ladle and rope to lower the ladle into tho drain—This ladle will be labeled with the conosponding reference information on tho handle—The ladle will bo stored in a plastic bag to prevent outside contamination in between sampling events—Pnor to a sampling event, the ladle and any other sampling equipment used will follow decontamination procedures as outlined in Section 6 2 5 of the Groundwater Quality Assurance Plan (QAP) and the mnoff will be captured and analyzed for the parameters measured in the collocted samples will be sampled using a disposable bailer The Cell 2 shmes drain will be sampled such that representative fluids are collected Accordingly, samples will only be collected from this location when the pump has been operating in accordance with the approved operating plan for a minimum of 48 hours prior to sampling in order to assure that the system is purged and is producing representative fluids The ladle will be lowered into the drain until the sample cup is filled with solution The sampling personnel must take care not to disturb the sediment in the bottom of the drain The ladio will then be raised and tho contents placed into a clean sample collection bottle as provided by an outside laboratory _ Once enough sample has been collected, the ladle and any other sampling equipment will follow docontanunation procedures as outlined m Section 6 2 5 of the (QAP) and then rotumed to the plastic bag and placed into the locked environmental storage container outside the administration building A disposable bailer will be used to collect Cell 2 shmes drain samples and will be used to fill clean sample containers The bailer^will be disposed of and not reused, thereby eliminating the need for decontamination of equipment or rinsate blanks ~[ Formatted Justified -[ Formatted Font 11 pt • [ Formatted Justified 3)Leak Detection Systems The following aro Leak Detection Systems locations Formatted Bullets and Numtiering 1) Cell itl—located along the south dike, near the southeast comer of cell 2) Ccll #2—located along the south dike, midway of coll 3) Coll #3—located along the south dike, midway of coll 1)Coll MA—located in the southwest comer of cell Formatted Bullets and Numbering In Cells 1, 2 and 3 tho lealc detection system is measured by use of a pipe that is removed from the system which will indicate the presence and depth of solutions m the LDS system 1) The pipe will be long enough to verify tho distance between tho top of tho access pipe (water level measurement point) to tho bottom of the LDS sump and, 2) the pipe will bo calibrated to the nearest 0 1 ft m order to measure the presence and depth of solutions in tho LDS system Tho distances from the top of tho access pipe to the bottom of tho LDS sump for each of the cells is as* [ Formatted Justified follows €eH4 69 18 ft Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 €eH^ 35 87 ft €elW—139 12 ft Colli A 12500ft If any solutions arc detected m tho Leak DotecUon Systems (LDS), then steps must be taken to be able to collect samples as well as obtain information regarding levels, flow rates, and gallons pumped Whenever solutions are detected in Cells 1, 2 or 3 a pump and lino will be installed onto the angled drisco lino within 15 days after fluids are first dectoctod This pump will be a dedicated piece of equipment and will remain in at its installation location and, due to its dedicated status at the sampling location, no decontamination will be required prior to sampling On the discharge lino, a sample port (valve) must be installed for the collection of samples as required by the GWDP—Regarding Cell 4A, this Cell is equipped with a submersible pump, pump controller water level indicator and flow meter—Tho water level meter and flow meter are utilized to monitor head conditions and flow rate in accordance with the White Mesa Mill Tailings Cell 4A Monitonng Operations and Maintenance Plan—Samples from the Cell IA LDS will be collected by means of the dodicatcd submersible pump installed in Cell 4A—All samples collected from LDS systems will be placed into clean sample containers as provided by an independent laboratory 3 4 Field Data -[ Formatted Heading 2, Justified In addition to the analytical parameters noted above, field data will be recorded at the time of sample collection Field parameters required by the GWDP include pH. specific conductance and temperature One variance from the requirements in the Permit will be implemented The Permit. Section IE 10 (d) 1) requires the collection of field pH. temperature and conductivity A field pH and temperature measurement will be collected at the time of sample collection using pH paper and a glass thermometer respectively Conductivitv will be measured by one of the Mill's contracted laboratones During a previous sampling event the tailings wastewater solutions conoded the field meter after the collection of the first set of measurements which resulted in the loss of the meter and enoneous measurements following the first sample To prevent equipment damage and loss of measurements, conductivity will no longer be measured in the field The laboratory will be able to complete the conductivity measurements because the instruments in use by the laboratories are "sturdier", suitable for corrosive solutions, and less apt to be affected by the tailings wastewater solutions 3 5 Decontamination Decontamination of sampling equipment will be completed if non-dedicated and/or non-disposable sampling equipment is used to collect samples Decontamination procedures will be as described in the approved QAP Rinsate blanks will be collected daily after decontamination of sampling equipment If disposable or dedicated sampling equipment is used to collect samples^ then rinsate blanks will not be collected -{Formatted Font 11 pt 3 6 Field QC The field OC samples generated dunng the annual tailings cell. LDS and shmes drain sampling event will include sample duplicates, trip blanks, and nnsate blank samples as appropriate Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 ^6 1 Saniple Dupjicates -^^^ Sample duplicates will be collected at a frequency of one duplicate per 20 field samples Sample^ duplicates will be collected by filling the sample container for a certain analytical parameter for the duplicate immediately following the collection of the parent sample for that parameter 3 6 2Tnp Blanks Trip blank samples will be included in every shipment of samples that has field samples to be analyzed*-, for Volatile Organic Compounds ("VQCs") Trip blank samples are VQC sample containers filled by the analytical laboratory with laboratory grade deionized water and shipped to the site Trip blank samples are taken into the field with the sample containers, never opened, and kept with the field samples from collection through shipment to the analytical laboratory for analysis Trip blanks are analyzed to determine if the sample concentration of VQCs have been effected by the "trip" from collection through shipment j3 6 3 Rinsaje Blank Samples *j Rinsate blank samples are collected at a frequency of one per day when non-disposable, non-dedicated.*- reusable sampling equipment is used to collect samples If the sampling equipment has a disposable component that comes in contact with the samples and the component is changed prior to sampling at each location then a rinsate blank sample will not be collected For example, if a peristaltic pump is used to collect and filter tailings. LDS and shmes drain samples and the tubing used in the peristaltic pump is changed at each location and never reused for more than one sample, no nnsate blank sample would be required * 4^QA/QG *~ The QA/QC process for the event will consist of a blind duplicate and (for slimos drain ladles) equipment nnsate samples prior to tho sample event—The equipment nnsate samples will be colloctod m conformance with Section 4 3 2 of the QAP—These samples will bo colloctod for each tailings cell or shmes dram being sampled Tho blind duplicate sample will be collected by collecting additional sample volume from one coll or location and combining all materials into one container—A split will then bo taken from that vessel and submitted to an outside laboratory The objectives for measuring data quality outlined in Section 3 of tho QAP are applicable to sampling activities conducted under this Plan If upon review of tho data by tho Quality Assurance Manager it is discovered that sampling results and QJVQC data are non conforming with regard to QAP parameters, the corrective actions outlined in Section 10 of tho QAP will bo followed 5)Laboratory Analyses •* - Samples of tailings and slimes drain material will be analyzed at an offsite contract laboratory and subjected to the analytical parameters included in Table 2—and general inorganics listed in Part I E l(d)(2)0i) of the Ground Water Discharge Porniit (No UGW370001) The proceduroo utilized to conduct those analyses will bo those utilized for groundwater sampling and as shown in Section 8 2 in the Ground Water Monitoring Quality Assurance Plan (QAP)—Tho laboratory will bo notified prior to sending tho samples that tho samples ore from tho tailing coll in order that appropnate dilution steps can bo applied during analyses - Formatted Font 11 pt Formatted Heading 3, Justified, Tab stops Not at 0" + 1" Formatted Justified Formatted Font 11 pt Formatted Heading 3, Justified, Tab stops Not at 0" + 1" Formatted Justified Formatted Font 11 pt Formatted Heading 3, Justified, Tab stops Not at 0"+ 1" { Formatted Justified Formatted Font 11 pt Formatted Justified, Indent Left 0 5", No bullets or numbering Formatted Bullets and Numtiering Formatted Justified -{Formatted Justified -f Formatted Justified f Formatted Bullets and Numtiering Tailings Cell. Leak Detections System and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 The contracted laboratory will be certified by the State of Utah in accordance with Utah Adnuniotrativc Codo (UAC) R317 6 6 12A 6)Additional Sampling and Plan Modification (Cell 4A) Once constructed, and as built systems are in place. Cell tf4a will be subjected to annual samplings of tho shmes drain and leak detection system access pipes These sample locations will be added to Attachment 1 and the plan will bo amended to reflect tho additional sampling locanons As with the other tailings cell samplings, the Coll #4a sampling ovent will include the preparation and analysis of blind duplicate and equipment nnsate samples 4 0 OA and Data Evaluation A The Permit requires that the annual tailings cell LDS and shmes drain sampling program be conducted in compliance with the requirements specified in the Mill's approved QAP. the approved SAP and the Permit itself To meet this requirement, the data validation for the tailings cell LDS and shmes drain sampling program will utilize the requirements outlined in the QAP. the Permit and the approved SAP as applicable The Mill QA Manager will perform a QA/QC review to confirm compliance of the monitoring program with requirements of the Permit. QAP and SAP As required in the QAP. data QA includes preparation and analysis of field QC samples, review of field procedures, an analyte completeness review, and quality control review of laboratory data methods and data The QAP and the Permit identify the data validation steps and data quality control checks required for the tailings cell LDS and shmes drain monitoring program Consistent with these requirements, the Mill QA Manager will performed the following evaluations a field data QA/QC evaluation, a receipt temperature check, a holding time check, an analytical method check, a reporting limit check, a tnp blank check, a QA/QC evaluation of sample duplicates, a gross alpha counting error evaluation and a review of each laboratory's reported QA/QC information The corrective action procedures described in the approved QAP will be followed as necessary when data validation and QC reviews indicate a non-compliant situation 5 0 Laboratorv Analysis As previously stated, samples will be analyzed for the groundwater compliance parameters listed in Table 2 of the GWDP and SVQCs using the analytical methods specified in the approved QAP and EPA Method 8270D for SVQCs The Laboratones used for the tailings cell LDS and shmes drain sampling program will be Utah certified as required by the GWDP Part 1 E 6 (c) Laboratory data will be validated as described in the approved QAP and as described in Section 4 0 above Analytical QC is descnbed below -( Formatted Justified -( Formatted Bullets and Numbering -( Formatted Justified -[ Formatted Font 11 pt -( Formatted Font 11 pt , ' -[ Formatted Font Times New Roman 5 1 Analytical Quality Cqnjrol -( Formatted Font 11 pt 10 Tailings Cell. Leak Detections Svstem and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 Analytical QC samples and protocols are described in the approved QAP Laboratory QC procedures will meet, at a minimum, the requirements set forth in the analytical methods that the laboratory is certified for by the State of Utah The analytical QC samples included at least the following a method blank, a laboratory control spike ("LCS"). a matnx spike ("MS") and a matnx spike duplicate ("MSD"). or the equivalent, where applicable It should be noted that Laboratory fortified blanks are equivalent to LCSs Laboratory reagent blanks are equivalent to method blanks Post digestion spikes are equivalent to MSs Post digestion spike duplicates are equivalent to MSDs For method E900 1. used to determine gross alpha, a sample duplicate was used instead of a*- MSD All qualifiers, and the conesponding explanations reported in the QA/QC Summary Reports for any of the analytical QC samples for any of the analytical methods will be reviewed by the Mill QA Manager The effect on data usability will be discussed in the evaluation section of the annual report Formatted Indent Left 0 25", Hanging 0 5", Tab stops 0 75", Left + Not at 0 5" -[Formatted Justified 11 Tailings Cell. Leak Detections Svstem and Slimes Drain Sampling and Analysis Plan Revision 2 June 28. 2012 7)6 0 Reporting Revision 0 November 20, 2008 Page 5 of 5 Formatted Heading 1, Justified, No bullets or numbenng A Tailings Cells Wastewater Quality Sampling Report will be included with the 3'^ Quarter Groundwater Monitoring Report, due each year on December T' Each Tailings Cell Wastewater Sampling Report will include the following information • Introduction, • aA^ description of sampling methodology^ equiprnent and decontamination procedures identify all quality assurance samples, e g trip blanks, equipment blanks, duplicate samples, • a^nalyticaj data jnterpretatiqn for each tailing cell, shmes drain_, and leak detectiqn system Formatted Bullets and Numbering ~( Formatted Font 11 pt Formatted Justified Formatted Font 11 pt -{ Formatted Font 11 pt sample, e^wntten summary an conclusions of analytical results^ aA^tahle summari^zing hispric analytical results, -( Formatted Font 11 pt Formatted Font 11 pt quality assuranceOA evaluation. fti^l field data sheets accqrnpanying the samphng evenly eQppies of the laboratory reports, and ft(^ "Tailings and Sjime Drmns System Sample Locations Map^' Formatted Font 11 pt -{Formatted Font 11 pt Formatted Font 11 pt Formatted Font 11 pt ^7 0- Agency Notification At least 30 days advanced notice will be given to UDEQ DRC prior to sampling activities described under this Tailings and Slimes Drain Sampling Program in order to allow the Executive Secretary to collect split samples of all tailing cell wastewater sources Formatted Heading 1, Justified, No bullets or numbenng. Tab stops Not at 0 75" Formatted Bullets and Numbenng Formatted Font 11 pt I Formatted Justified 12 Attachment 1 13 Formatted Centered Formatted Left 1", Right 1", Vertical Alignment Center PIEZ-2 a OrW4.iq3xvV4-11 OTW4-13 TW4-7 GfTW4-4, OnW4-14 OTW4-6 MW-03 PIEZ-5 MW-17 % o -iL i Ui i SCALE 1*31000' Denison Mines (USA) Corp OENISONDJ^ MINES REVISIONS Proiect vVhite Mesa Mill Date By County San Juan | UT 10-08 GM Location. ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS ANNUAL TAILINGS SAMPLE LOCATIONS unknown Aug 2008 Attachment 2 14 Field Data Record-Tailings, LDS and Slimes Drain Samphng Location: Sampling Personnel:. Is this a Slimes Drain? • Yes • No If this is a Slimes Drain, measure depth to wastewater immediately before sampling. DTW immediately before sampling (slimes only): Weather Conditions at Time of Sampling: Field Parameter Measurements: -pH -Temperature (°C) Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Sampling Method Lab Name Parameter Sample Taken Filtered Peristaltic Pump Bailer Ladle Lab Name VOCs • Yes • No • Yes • No • • • THE • Yes • No • Yes • No • • • Nutrients • Yes • No • Yes • No • • • Other Non Radiologics • Yes • No • Yes • No • • • Gross Alpha • Yes • No • Yes • No • • • SVOCs • Yes • No • Yes • No • • • Conductivity • Yes • No • Yes • No • • • QC Samples Associated with this Location: • Rinsate Blank • Duplicate Duplicate Sample Name Notes: