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

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USEFUL INTERNET WEB SITESAmerican Petroleum Institute (API)Missouri Department of Natural Resources (MDNR)Missouri Department of Transportation (MoDot)Missouri One Call SystemOSHA Technical Data CenterPetroleum Equipment Institute (PEI)Petroleum Storage Tank Insurance Fund (PSTIF)RCRA Hotlinewww.api.orgwww.dnr.state.mo.us/homednrwww.modot.state.mo.uswww.mo1call.orgwww.osha.govwww.pei.orgwww.pstif.orgwww.epa.gov/epaoswer/hotlineMRBCA Guidance Document xviiFebruary 24, 2004Final Draft
MRBCA Guidance Document xviiiFebruary 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 and 12: 7.0 TIER 1 RISK ASSESSMENT 7-17.1 S
Page 13 and 14: 13.0 REFERENCES 13-1MRBCA Guidance
Page 15 and 16: Figure 4-3(b) Tank Excavation Sampl
Page 17: IMPORTANT CONTACT INFORMATIONAmeric
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
Page 65 and 66: Figure 4-4(a). Sampling for a Singl
Page 67 and 68: Figure 4-5(a). In-Place Closure of
Page 69 and 70:
Figure 4-6(a). Wall Sampling After
Page 71 and 72:
5.0SITE CHARACTERIZATION AND OTHER
Page 73 and 74:
• Type of product released, and
Page 75 and 76:
If data collected in the past does
Page 77 and 78:
• Determine the types of material
Page 79 and 80:
The land use map need not be drawn
Page 81 and 82:
In the event that circumstances at
Page 83 and 84:
Multiple samples from across the si
Page 85 and 86:
predominant flow direction, estimat
Page 87 and 88:
esidential receptors. For the subsu
Page 89 and 90:
Step 2: From the point of release i
Page 91 and 92:
All boreholes and probes greater th
Page 93 and 94:
• Adequate QA/QC procedures must
Page 95 and 96:
Type ofProductReleasedKnown?NoAYesG
Page 97 and 98:
NFigure 5-2. An Example ofa Land Us
Page 99 and 100:
Figure 5-3(b)ST #SOIL BORING LOGBOR
Page 101 and 102:
Figure 5-4(b)ST #MONITORING WELL IN
Page 103 and 104:
Table 5-1 (Page 2 of 3)Chemicals of
Page 105 and 106:
Table 5-2Weight Percents for COCs i
Page 107 and 108:
PAH’SCompound Method Water PQL So
Page 109 and 110:
MRBCA LABORATORY REQUIREMENTSI. REQ
Page 111 and 112:
for calibration or quantitation. Th
Page 113 and 114:
7. Retention time windows are defin
Page 115 and 116:
ATTACHMENT AEcological Risk Assessm
Page 117 and 118:
7.b.) Is there a hydrogeological co
Page 119 and 120:
6.0GENERAL CONSIDERATIONS FOR RISK
Page 121 and 122:
• Local Zoning Ordinance(s),• C
Page 123 and 124:
6.1.3 Human Exposure Pathways and R
Page 125 and 126:
6.1.3.4 Pathways for GroundwaterPot
Page 127 and 128:
Due to the limited number of COCs a
Page 129 and 130:
6.3 EVALUATION OF GROUNDWATER USEWi
Page 131 and 132:
ased on consideration of the follow
Page 133 and 134:
6.4.1 Protection of StreamsProtecti
Page 135 and 136:
criteria based on these routes of e
Page 137 and 138:
• Ecotox Thresholds (ETs) as pres
Page 139 and 140:
must be used. The specific equation
Page 141 and 142:
Pathway complete?NoYesTier 1 evalua
Page 143 and 144:
MCL Exists?YesUse MCLNoChemicalVola
Page 145 and 146:
Identify Stream Classification10 CS
Page 147 and 148:
Table 6-2Calculation of Representat
Page 149:
•••••
Page 154 and 155:
Tables detailing the March 2005 soi
Page 156 and 157:
Depth to Subsurface Soil Sources (d
Page 158 and 159:
8.1.2 Groundwater ParametersDepth t
Page 160 and 161:
Infiltration Rate (I) (Tier 1 defau
Page 162 and 163:
Impacted AreayLeachatexzYW gaU gwZC
Page 164 and 165:
• An explanation of data gaps tha
Page 166 and 167:
Condition 4: Absence of ecological
Page 168 and 169:
• Active remedial actions to redu
Page 170 and 171:
10.4 NO FURTHER ACTION PROCEDUREWhe
Page 172 and 173:
C. A Deed Notice is an informationa
Page 174 and 175:
(5) a state regulation prohibiting
Page 176 and 177:
12.2 SITE DISCOVERY12.2.1 Release/S
Page 178 and 179:
12.2.4 System Test Report (narrativ
Page 180 and 181:
• Intent of report: To provide re
Page 182 and 183:
12.3.4 Soil Vapor Measurement Work
Page 184 and 185:
- A discussion of ecological exposu
Page 186 and 187:
12.4.3 Tier 3 Work PlanThe content
Page 188 and 189:
o A description of the risk managem
Page 190 and 191:
• Intent of work plan: The AUL Wo
Page 192 and 193:
(investigative, remedial, or monito
Page 194 and 195:
- A discussion of the composition o
Page 196 and 197:
- Form No. Tier 1-7: Analytical Dat
Page 198 and 199:
Total Petroleum Hydrocarbon Criteri
Page 200 and 201:
APPENDIX AThis appendix has been in
Page 202 and 203:
The procedure used to calculate Tie
Page 204 and 205:
For a Tier 2 risk assessment, a com
Page 206 and 207:
Soil Vapor Concentration: The soil
Page 208 and 209:
INDOOR INHALATION OF VAPORS(CHILD A
Page 210 and 211:
INGESTION AND INHALATION OF GROUNDW
Page 212 and 213:
DERMAL CONTACT WITH CHEMICALS IN SU
Page 214 and 215:
INHALATION OF VAPORS AND PARTICULAT
Page 216 and 217:
Where:RBTL ss = Risk-based target l
Page 218 and 219:
Where:RBTL ai-adj = Age-adjusted ri
Page 220 and 221:
Where:RBTL ao-adj = Age-adjusted ri
Page 222 and 223:
Where:RBTL w-adj = Age-adjusted ris
Page 224 and 225:
Where:RBTL dcw-adj = Age-adjusted r
Page 226 and 227:
Where:RBTL dcss-adj = Age-adjusted
Page 228 and 229:
Where:RBTL ingss-adj = Risk-based t
Page 230 and 231:
Where:RBTL ss-adj = Age-adjusted ri
Page 232 and 233:
SUBSURFACE SOIL VAPOR CONCENTRATION
Page 234 and 235:
GROUNDWATER CONCENTRATIONS PROTECTI
Page 236 and 237:
VOLATILIZATION FACTORS(PARTICULAR E
Page 238 and 239:
VOLATILIZATION FACTORS(SUBSURFACE S
Page 240 and 241:
EFFECTIVE DIFFUSION COEFFICIENTSeff
Page 242 and 243:
LEACHING FACTOR FROM SUBSURFACE SOI
Page 244 and 245:
SOIL VAPOR CONCENTRATION AT WHICH V
Page 246 and 247:
ALLOWABLE SOIL AND GROUNDWATER CONC
Page 248 and 249:
STREAM PROTECTION: ALLOWABLE SOIL A
Page 250 and 251:
Table B-2Physical and Chemical Prop
Page 252 and 253:
Table B-3 (Page 2 of 2)Exposure Fac
Page 254 and 255:
Table B-4 (Page 2 of 2)Fate and Tra
Page 256 and 257:
The procedure used to quantitativel
Page 258 and 259:
• Tier 2, Alternative 2: The soil
Page 260 and 261:
The entity performing the work shal
Page 262 and 263:
Pathway complete?NoYesTier 1 evalua
Page 264 and 265:
APPENDIX DA METHOD FOR DETERMINING
Page 266 and 267:
epresentative value for the hydraul
Page 268 and 269:
15Hydraulic Conductivity, gpd/ft 21
Page 270 and 271:
APPENDIX EESTIMATION OF REPRESENTAT
Page 272 and 273:
To calculate the representative con
Page 274 and 275:
The MRBCA process requires the eval
Page 276 and 277:
concentration of these samples may
Page 278 and 279:
APPENDIX FCONSIDERATION OF TOTAL PE
Page 280 and 281:
• All soil and groundwater sample
Page 282 and 283:
with Tier 1 and Tier 2 target level
Page 284 and 285:
APPENDIX GMRBCA REPORT FORMSForm No
Page 286 and 287:
CLOSURE NOTICE FOR PETROLEUM RELEAS
Page 288 and 289:
UNDERGROUND STORAGE TANK CLOSURE NO
Page 290 and 291:
CHOOSE THE AREA BASED ON YOUR COUNT
Page 292 and 293:
Risk-Based CorrectiveAction For Pet
Page 294 and 295:
UNDERGROUND STORAGE TANK CLOSURE RE
Page 296 and 297:
RESULTS OF SOIL ANALYSISFORM CR-2SI
Page 298 and 299:
TIER 1 AND TIER 2 RISK ASSESSMENT R
Page 300 and 301:
MAINMRBCACOVER PAGETABLE OF CONTENT
Page 302 and 303:
TABLE OF CONTENTSSITE NO.: SUBMITTA
Page 304 and 305:
FACILITY INFORMATION Tier 1-1SITE N
Page 306 and 307:
RELEASE CHARACTERIZATION Tier 1-3SI
Page 308 and 309:
SITE HYDROGEOLOGY Tier 1-5SITE NO.:
Page 310 and 311:
ANALYTICAL DATA SUMMARY FOR SURFICI
Page 312 and 313:
ANALYTICAL DATA SUMMARY FOR SUBSURF
Page 314 and 315:
ANALYTICAL DATA SUMMARY FOR GROUNDW
Page 316 and 317:
ANALYTICAL DATA SUMMARY FOR GROUNDW
Page 318 and 319:
SOIL GEOTECHNICAL PARAMETERS* Tier
Page 320 and 321:
EXPOSURE MODEL - OFF-SITE RESIDENT
Page 322 and 323:
EXPOSURE MODEL - OFF-SITE NON-RESID
Page 324 and 325:
EXPOSURE MODEL - OFF-SITE CONSTRUCT
Page 326 and 327:
COMPARISON OF REPRESENTATIVE CONCEN
Page 328 and 329:
Page 330 and 331:
Page 332 and 333:
Page 334 and 335:
Page 336 and 337:
Page 338 and 339:
Page 340 and 341:
Risk-Based CorrectiveAction For Pet
Page 342 and 343:
TIER 2 FATE AND TRANSPORT PARAMETER
Page 344 and 345:
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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