Perchlorate in Arizona: Occurrence Study of 2004

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Table 2.1 – List of proposed sampling sitesMapNumsitenamesite_idCollectionAgencyNew orexistinglat_dd long_dd County Remarks181 CAP crossing St Hwy 79 Florence ASUA E 33.078519 111.373386 Pinal AZ Army National Guard Res182 Red Rock CAIDD ASUA E 32.588349 111.414036 Pinal over bridge railing183 Avra Valley recharge CAP recharge ASUA E 32.588349 111.402544 Pima CAP inlet184 Lake Mary WTP gw well ASUA E 35.150106 111.650700 Coconino185 Lake Mary WTP raw water ASUA E 35.109085 111.585589 Coconino186 Lake Mary WTP raw water ASUA E 35.159163 111.715108 CoconinoCollection Agencies:ASUA – Arizona Small Utilities Association GWMU – Groundwater Monitoring Unit (ADEQ)CAP – Central Arizona Project Hargis – Hargis & Associates (contractor for Apache Nitrogen)CLP – Clean Lakes Program (ADEQ) NDEP – Nevada Department of Environmental ProtectionCOP – City of Phoenix SWMU – Surface Water Monitoring Unit (ADEQ)DWR – Arizona Department of Water Resources WPD – Waste Programs Division (ADEQ)GRIC – Gila River Indian Community44
3.0 Project Data Quality ObjectivesThe quality assurance objective of this study is to ensure that environmental sampling andanalysis efforts produce credible and scientifically sound data. These samples are not forcompliance purposes as there is no enforceable water quality standard for perchlorate. The dataquality objectives (DQOs) are both qualitative and quantitative statements. The development ofDQOs is a systematic and iterative process to evaluate and identify the data needed fordecision-making.3.1 Project Task/Sampling ObjectivesWater quality data from this sampling effort will be used along with other existing data tocharacterize the presence of perchlorate in Arizona. A summary of occurrence will be providedin the final report issued by the Perchlorate Task Force in the fall, 2004. The Task Force is amulti-agency task force to assess the risk of perchlorate to Arizonans. The group has formedseveral subgroups each charged with different aspects of the issue including: determining whatlevels of perchlorate exist throughout the State and the likely source; the health-related problemsassociated with the chemical; the impact of perchlorate on the agriculture and food crop industryand how to disseminate the information to the public, especially to sensitive or vulnerablepopulations.3.2 Data Quality ObjectivesThe quality objective of this study is to ensure that environmental sampling and analysis effortsproduce credible and scientifically sound data in accordance with the sampling objectives for thisevent. This will be accomplished by documenting the precision of the analyses and in verifyingthe production of accurate results. The goals will be obtained by using the following methods ofquality assurance:3.2.1 PrecisionOverall precision will be determined through field duplicate and split analyses. Approximatelyten percent of the samples will be field duplicates and/or split samples. Given that approximately100 samples will be collected and analyzed, approximately 10 field duplicates and splits will berequired. The precision goal for this project shall be results within 10% of the average ofthe two values reported. Duplicates will be analyzed by Del Mar Laboratory; splits sampleswill be sent to Montgomery Watson Laboratory.3.2.2 AccuracyAccuracy will be determined by the analyses of spiked samples. An accuracy assessment will beconducted at least once per matrix type (e.g., groundwater, lake water, surface water). Recoverywill be expected to be +/-10% of actual spiked concentration. If the accuracy deviates from thisgoal, the source of the deviation will be researched and documented.[Note: Montgomery Watson Laboratories will prepare the spiked samples at concentrations of 4, 8 and 40 ug/L foranalysis by Del Mar Laboratories].45
Page 1 and 2: Perchlorate in ArizonaOccurrence St
Page 3 and 4: ADDENDUMPerchlorate Report for 2004
Page 5 and 6: Perchlorate Task ForceArizona Depar
Page 7 and 8: Executive SummaryIn March 2004, the
Page 9 and 10: Perchlorate in ArizonaOccurrence St
Page 11 and 12: Figure 1 shows the locations of sam
Page 13 and 14: Figure 2: Sample Results-9 -
Page 15 and 16: 70 SRP Arizona Canal downstream of
Page 17 and 18: Table 2: Results from Sampling Grou
Page 19 and 20: Groundwater: Thirty five groundwate
Page 21 and 22: Figure 3: Pre-2004 Sample Locations
Page 23 and 24: Figure 4: Pre-2004 Sample Results19
Page 25 and 26: Table 4: Known Sites with Perchlora
Page 27 and 28: Yuma Marine Corps Air Station(not o
Page 29 and 30: EVALUATION OF THE NATIONAL ACADEMY
Page 31 and 32: EVALUATING THE EFFECT OF PERCHLORAT
Page 33 and 34: SELECTED REFERENCESArizona Departme
Page 35 and 36: Perchlorate Occurrence StudySamplin
Page 37 and 38: 1.0 Project OverviewThis reconnaiss
Page 39 and 40: 2.0 Site IdentificationA wide varie
Page 41 and 42: Table 2.1 - List of proposed sampli
Page 47: Table 2.1 - List of proposed sampli
Page 51 and 52: 3.3.1.3 Trip blanks and field equip
Page 53 and 54: 5.0 Request for AnalysisEPA Method
Page 55 and 56: of 100 gallons of this solution wil
Page 57 and 58: 8.0 Disposal and Equipment Decontam
Page 59 and 60: 9.2 PhotographsIf photographs are t
Page 61 and 62: 10.0 Quality Assurance/Quality Cont
Page 63 and 64: 11.0 Field Health and Safety11.1 Pu
Page 65 and 66: 11.5 Personal Protective EquipmentB
Page 67 and 68: Appendix A1GROUNDWATER FIELD METHOD
Page 69 and 70: Appendix A2LAKE MONITORING FIELD ME
Page 71 and 72: iii.iv.Use a 1-liter wide-mouthed s
Page 73 and 74: Appendix A4HOSPITAL EMERGENCY ROOMS
Page 75 and 76: West Valley Emergency CenterGoodyea
Page 77 and 78: Appendix BMapNo. Site Location Sour
Page 79 and 80: 62 Martinez Lake SW 5/17/2004 ND 2
Page 81 and 82: 29 Las Vegas Bay surface SW 4/15/19
Page 83: 99 Luke AFB gw well GW 5/26/1999 ND

Perchlorate in Arizona: Occurrence Study of 2004

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