joint groundwater report - Texas Commission on Environmental ...

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Figure 2a. Groundwater Contamination Case History, Total, New, and Ongoing Cases80007000600050004000Total CasesNew CasesOngoing Investigation30002000100001989 1990 1991 1992 1993 1994 1995 1996 1997Figure 2b. Groundwater Contamination Case History, Activity Status Report Trends400035003000250020001500No ActivityContamination ConfirmedOngoing InvestigationCorrective Action PlanningAction ImplementedMonitor ActionAction CompletedNo Status Given100050001989 1990 1991 1992 1993 1994 1995 1996 19978
Similar trends are observed in the total number of cases and cases undergoing investigation (Figure 2b). Upto 1995, cases under corrective action planning followed the same trend, but deviated in 1996. These allshowed increases up to 1992, at which time the numbers essentially leveled off until 1995. In 1995, the totalnumber of cases and cases undergoing investigation increased sharply, while cases under corrective actionplanning have decreased. Cases implementing corrective action measures show a similar trend with a oneyearlag. These cases appear to have leveled off from 1993 to 1995, and showed a slight decrease in 1996 and1997. Cases under corrective action planning and action implementation have mirrored each other since 1993.The number of cases being confirmed for contamination peaked in 1991, followed by a dramatic decrease in1992. In relation, the number of cases under investigation and corrective action increased significantly in1992. These lags indicate the cases are moving through the sequence of actions which should ultimately leadto completion.For all of the agencies and entities over the eight-year period from 1989 to 1996 (Figure 1), action has beencompleted on a total of 2,176 <strong>groundwater</strong> contamination cases. These completed <strong>groundwater</strong> contaminationcases were dropped from each successive annual <strong>report</strong>. Action was completed on an additional 461 cases in1997. Action on these cases was considered complete when the desired remedy was achieved or when nofurther regulatory action was required.9
Page 5: Table of ContentsACRONYMS .........
Page 8 and 9: ACRONYMSAgencies, Divisions, and Pr
Page 10 and 11: The report further
Page 12 and 13: groundwater qualit
Page 14 and 15: Describing an agency's enforcement
Page 19 and 20: GROUNDWATER PROTECTIONThe following
Page 21 and 22: core program compliance, thus provi
Page 23 and 24: ability to remove or treat all cont
Page 25 and 26: approach that will expedite remedia
Page 27 and 28: Reporting Unauthorized Discharges a
Page 29 and 30: county judges and county health ent
Page 31 and 32: USER’S GUIDEThe remaining portion
Page 33 and 34: Figure 3. Contamination Case Descri
Page 35 and 36: Figure 4. Enforcement Status Matrix
Page 37 and 38: Activity Status CodesOnce g
Page 39 and 40: GROUNDWATER PROTECTIONPROGRAM DESCR
Page 41 and 42: Status of Groundwater Monitoring Pr
Page 43 and 44: Industrial and Hazardous Waste Divi
Page 45 and 46: Since 1975, when the first Class II
Page 47 and 48: supplies from IHW's Class I Undergr
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Page 51 and 52: due to completed action from this a
Page 53 and 54: Status of Groundwater Monitoring Pr
Page 55 and 56: state agencies which have jurisdict
Page 57: systems have 8,131 entry points sup
Page 60: Figure 7. Texas Wa
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Texas Department o
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Texas State Soil a
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Texas Alliance of
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Prior to the plugging of six monito
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egan a research study of the fresh
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High Plains Underground Water Conse
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Hill Country Underground Water Cons
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An artesian brine aquifer called th
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Plateau Underground Water Conservat
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effort will allow the district to c
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and methods to better evaluate wher
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Texas Department o
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Table 1Texas Natur
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TABLE 1GROUNDWATER CONTAMINATION CA
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Table 2Railroad Commission<
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Table 3Texas Allia
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APPENDICESAppendix 1. Texas
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Appendix 1. Texas
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Texas State Soil a
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Appendix 2. Texas
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Appendix 3. Groundwater Classificat
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Figure 15. Groundwater Classificati
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Appendix 4. Texas
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Appendix 5. TNRCC Spill Prevention
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working days of the discovery of th
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A-19
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A-21
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Appendix 7. Agency and District Con
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Edwards Aquifer AuthorityEmerald Un
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Appendix 8. Agency Central Records
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Appendix 9. Other Reports and Publi
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impact on the quality of the state'
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