missouri risk-based corrective action (mrbca) process for petroleum ...

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11.0 ACTIVITY AND USE LIMITATION POLICY 11-111.1 APPLICATION OF POLICY 11-111.2 ACTIVITY AND USE LIMITATION POLICY FOR PETROLEUMSTORAGE TANK SITES 11-111.2.1 Introduction 11-111.2.2 Definitions 11-111.2.3 Application of Policy at Operating Tank Facilities 11-311.2.4 Application of Policy at Sites That Are No Longer Operating TankFacilities 11-312.0 REPORTING 12-112.1 TANK CLOSURE 12-112.1.1 Closure Notice 12-112.1.2 Closure Report 12-112.2 SITE DISCOVERY 12-212.2.1 Release/Suspected Release Report 12-212.2.2 Initial Hazard Abatement Measures Report 12-212.2.3 Site Check Report 12-312.2.4 System Test Report 12-412.3 SITE CHARACTERIZATION 12-412.3.1 Work Plans <strong>for</strong> Site Characterization & Monitoring 12-412.3.2 Periodic Monitoring Reports 12-512.3.3 Site Characterization Report 12-712.3.4 Soil Vapor Measurement Work Plan 12-812.3.5 Soil Vapor Monitoring Report 12-812.4 TIERED RISK ASSESSMENT 12-912.4.1 Tier 1 Risk Assessment Report 12-912.4.2 Tier 2 Risk Assessment Report 12-1012.4.3 Tier 3 Work Plan 12-1212.4.4 Tier 3 Risk Assessment Report 12-1212.5 RISK MANAGEMENT PLAN (RMP) 12-1312.5.1 Risk Management Plan 12-1312.5.2 Interim Corrective Action Work Plan 12-1412.5.3 LNAPL Removal Work Plan 12-1412.5.4 Activity and Use Limitations Work Plan 12-1512.5.5 Corrective Action Plan 12-1612.5.6 RMP Per<strong>for</strong>mance Monitoring Plan 12-1712.6 RMP COMPLETION AND PERFORMANCE MONITORINGREPORT 12-1712.6.1 Interim Corrective Action Report 12-1812.6.2 LNAPL Removal Report 12-1912.6.3 Activity and Use Limitations Report 12-2012.6.4 Corrective Action Report 12-21MRBCA Guidance Document xiFebruary 24, 2004Final Draft
13.0 REFERENCES 13-1MRBCA Guidance Document xiiFebruary 24, 2004Final Draft
Page 1 and 2: Missouri Department of Natural Reso
Page 3 and 4: FOREWORDThis guidance document desc
Page 5 and 6: ABBREVIATIONSAPI American Petroleum
Page 7 and 8: TABLE OF CONTENTSCOVER PAGEACKNOWLE
Page 9 and 10: 5.0 SITE CHARACTERIZATION AND OTHER
Page 11: 7.0 TIER 1 RISK ASSESSMENT 7-17.1 S
Page 15 and 16: Figure 4-3(b) Tank Excavation Sampl
Page 17 and 18: IMPORTANT CONTACT INFORMATIONAmeric
Page 19 and 20: MRBCA Guidance Document xviiiFebrua
Page 21 and 22: This document does not in any way r
Page 23 and 24: investigation resulting in confirma
Page 25 and 26: Details of Tier 1 risk assessment a
Page 27 and 28: Tier 1 RBTLs are generic target lev
Page 29 and 30: Site CharacterizationRegulatory Pol
Page 31 and 32: ANoConcentrationsExceed Tier 1Level
Page 33 and 34: Table 2-1Comparison of Risk Assessm
Page 35 and 36: 3.0SITE DISCOVERY AND INITIAL RESPO
Page 37 and 38: 3.4 INVESTIGATION OF CONFIRMED RELE
Page 39 and 40: Table 3-1Default Target LevelsChemi
Page 41 and 42: 4.3 CLOSURE OF TANKS BY EXCAVATION
Page 43 and 44: 4.4.2.2 Soil Sampling Requirements
Page 45 and 46: The samples must be collected from
Page 47 and 48: Sampling Background Conditions: If
Page 49 and 50: A groundwater investigation is requ
Page 51 and 52: 4.5.1 On-site Storage of Excavated
Page 53 and 54: 4.5.3 Disposal of Petroleum Contami
Page 55 and 56: Exhibit 4-8Toxicity Characteristic
Page 57 and 58: To properly characterize deferred m
Page 59 and 60: Figure 4-1(a). Tank Floor Sampling
Page 61 and 62: Figure 4-2(a). Tank Excavation Samp
Page 63 and 64:
Figure 4-3(a). Tank Excavation Samp
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Figure 4-4(a). Sampling for a Singl
Page 67 and 68:
Figure 4-5(a). In-Place Closure of
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Figure 4-6(a). Wall Sampling After
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5.0SITE CHARACTERIZATION AND OTHER
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• Type of product released, and
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If data collected in the past does
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• Determine the types of material
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The land use map need not be drawn
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In the event that circumstances at
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Multiple samples from across the si
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predominant flow direction, estimat
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esidential receptors. For the subsu
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Step 2: From the point of release i
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All boreholes and probes greater th
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• Adequate QA/QC procedures must
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Type ofProductReleasedKnown?NoAYesG
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NFigure 5-2. An Example ofa Land Us
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Figure 5-3(b)ST #SOIL BORING LOGBOR
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Figure 5-4(b)ST #MONITORING WELL IN
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Table 5-1 (Page 2 of 3)Chemicals of
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Table 5-2Weight Percents for COCs i
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PAH’SCompound Method Water PQL So
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MRBCA LABORATORY REQUIREMENTSI. REQ
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for calibration or quantitation. Th
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7. Retention time windows are defin
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ATTACHMENT AEcological Risk Assessm
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7.b.) Is there a hydrogeological co
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6.0GENERAL CONSIDERATIONS FOR RISK
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• Local Zoning Ordinance(s),• C
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6.1.3 Human Exposure Pathways and R
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6.1.3.4 Pathways for GroundwaterPot
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Due to the limited number of COCs a
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6.3 EVALUATION OF GROUNDWATER USEWi
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ased on consideration of the follow
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6.4.1 Protection of StreamsProtecti
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criteria based on these routes of e
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• Ecotox Thresholds (ETs) as pres
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must be used. The specific equation
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Pathway complete?NoYesTier 1 evalua
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MCL Exists?YesUse MCLNoChemicalVola
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Identify Stream Classification10 CS
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Table 6-2Calculation of Representat
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•••••
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Tables detailing the March 2005 soi
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Depth to Subsurface Soil Sources (d
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8.1.2 Groundwater ParametersDepth t
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Infiltration Rate (I) (Tier 1 defau
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Impacted AreayLeachatexzYW gaU gwZC
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• An explanation of data gaps tha
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Condition 4: Absence of ecological
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• Active remedial actions to redu
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10.4 NO FURTHER ACTION PROCEDUREWhe
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C. A Deed Notice is an informationa
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(5) a state regulation prohibiting
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12.2 SITE DISCOVERY12.2.1 Release/S
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12.2.4 System Test Report (narrativ
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• Intent of report: To provide re
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12.3.4 Soil Vapor Measurement Work
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- A discussion of ecological exposu
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12.4.3 Tier 3 Work PlanThe content
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o A description of the risk managem
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• Intent of work plan: The AUL Wo
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(investigative, remedial, or monito
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- A discussion of the composition o
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- Form No. Tier 1-7: Analytical Dat
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Total Petroleum Hydrocarbon Criteri
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APPENDIX AThis appendix has been in
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The procedure used to calculate Tie
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For a Tier 2 risk assessment, a com
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Soil Vapor Concentration: The soil
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INDOOR INHALATION OF VAPORS(CHILD A
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INGESTION AND INHALATION OF GROUNDW
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DERMAL CONTACT WITH CHEMICALS IN SU
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INHALATION OF VAPORS AND PARTICULAT
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Where:RBTL ss = Risk-based target l
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Where:RBTL ai-adj = Age-adjusted ri
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Where:RBTL ao-adj = Age-adjusted ri
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Where:RBTL w-adj = Age-adjusted ris
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Where:RBTL dcw-adj = Age-adjusted r
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Where:RBTL dcss-adj = Age-adjusted
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Where:RBTL ingss-adj = Risk-based t
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Where:RBTL ss-adj = Age-adjusted ri
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SUBSURFACE SOIL VAPOR CONCENTRATION
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GROUNDWATER CONCENTRATIONS PROTECTI
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VOLATILIZATION FACTORS(PARTICULAR E
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VOLATILIZATION FACTORS(SUBSURFACE S
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EFFECTIVE DIFFUSION COEFFICIENTSeff
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LEACHING FACTOR FROM SUBSURFACE SOI
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SOIL VAPOR CONCENTRATION AT WHICH V
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ALLOWABLE SOIL AND GROUNDWATER CONC
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STREAM PROTECTION: ALLOWABLE SOIL A
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Table B-2Physical and Chemical Prop
Page 252 and 253:
Table B-3 (Page 2 of 2)Exposure Fac
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Table B-4 (Page 2 of 2)Fate and Tra
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The procedure used to quantitativel
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• Tier 2, Alternative 2: The soil
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The entity performing the work shal
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Pathway complete?NoYesTier 1 evalua
Page 264 and 265:
APPENDIX DA METHOD FOR DETERMINING
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epresentative value for the hydraul
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15Hydraulic Conductivity, gpd/ft 21
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APPENDIX EESTIMATION OF REPRESENTAT
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To calculate the representative con
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The MRBCA process requires the eval
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concentration of these samples may
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APPENDIX FCONSIDERATION OF TOTAL PE
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• All soil and groundwater sample
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with Tier 1 and Tier 2 target level
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APPENDIX GMRBCA REPORT FORMSForm No
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CLOSURE NOTICE FOR PETROLEUM RELEAS
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UNDERGROUND STORAGE TANK CLOSURE NO
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CHOOSE THE AREA BASED ON YOUR COUNT
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Risk-Based CorrectiveAction For Pet
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UNDERGROUND STORAGE TANK CLOSURE RE
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RESULTS OF SOIL ANALYSISFORM CR-2SI
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TIER 1 AND TIER 2 RISK ASSESSMENT R
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MAINMRBCACOVER PAGETABLE OF CONTENT
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TABLE OF CONTENTSSITE NO.: SUBMITTA
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FACILITY INFORMATION Tier 1-1SITE N
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RELEASE CHARACTERIZATION Tier 1-3SI
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SITE HYDROGEOLOGY Tier 1-5SITE NO.:
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ANALYTICAL DATA SUMMARY FOR SURFICI
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ANALYTICAL DATA SUMMARY FOR SUBSURF
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ANALYTICAL DATA SUMMARY FOR GROUNDW
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ANALYTICAL DATA SUMMARY FOR GROUNDW
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SOIL GEOTECHNICAL PARAMETERS* Tier
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EXPOSURE MODEL - OFF-SITE RESIDENT
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EXPOSURE MODEL - OFF-SITE NON-RESID
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EXPOSURE MODEL - OFF-SITE CONSTRUCT
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COMPARISON OF REPRESENTATIVE CONCEN
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Page 334 and 335:
Page 336 and 337:
Page 338 and 339:
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Risk-Based CorrectiveAction For Pet
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TIER 2 FATE AND TRANSPORT PARAMETER
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Page 346 and 347:
Page 348 and 349:
Page 350 and 351:
Page 352 and 353:
Page 354 and 355:
Page 356 and 357:
TIER 2 APPLICABLE TARGET LEVELS FOR
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