Docket Report Data Summary Revisions

EPA Region 8, Solid and Hazardous Waste

ConocoPhillips Billings Refinery, Billings, Montana Delisting Petition

RE: Corrections to Table I

In review of the December 8, 2011 Federal Register Proposed Rule, EPA found errors in the values 

for 17 constituents in Table I. The errors are only in the reported values in Table I, the correct values 

were used in the DRAS modeling and the values for the maximum allowable TCLP delisting 

concentration levels are unchanged. 

TABLE I—MAXIMUM TOTAL AND TCLP CONCENTRATIONS AND MAXIMUM 

ALLOWABLE DELISTING CONCENTRATION LEVELS,

[Storm Water Tank – Filter Press residual solids, ConocoPhillips Billings Refinery, Billings, 

Montana]

Constituent Maximum total constituent

analysis (mg/kg)

Maximum TCLP constituent

analysis (mg/L)

Maximum allowable TCLP 

delisting

concentration level (mg/L)

Acenaphthene ................................................ 8.0 .0051 37.9

Antimony ......................................................... 1.89 .0074J .97

Anthracene ...................................................... 18.0 .0017J 50

Arsenic ............................................................ 60.1 .157 .301

Barium ............................................................ 196 1.12 100

Benz(a)anthracene ......................................... 3.6 <.0005 .25

Benzene............................................... .031 <.01 .5

Benzo(a)pyrene ............................................... 1.5 <.0006 1.1

Benzo(b)fluoranthene ..................................... .6J <.0007 8.7

Benzo(k)fluoranthene ...................................... .66 <.0009 50

Beryllium ......................................................... <.13 <.003 2.78

Bis(2-ethylhexyl)phthalate ............................... 1.8 <.0033 50

2-Butanone............................................ .12 <.02 50

Butyl Benzyl phthalate.............................. <.11 <.0007 46.5

Cadmium .......................................................... 1.46 <.006 1.0

Carbon disulfide....................................... .0083J <.02 36

Chromium....................................................... 152 <.006 5.0

Chrysene .......................................................... 4.2 <.0008 25.0

Chlorobenzene........................................ <0.011 <.01 16.4

Chloroform ....................................................... <.011 <.01 .286

Cobalt ............................................................... 24.4 .0074J .763

Cyanide(total) ................................................... 7.72 <.003 41.2

Dibenz(a,h)anthrancene .................................. .17J <0.0008 1.16

1,2-Dichlorobenzene................................ <.011 <.01 50

1,3-Dichlorobenzene................................ <.011 <.01 18.5

1,4-Dichlorobenzene................................ <.011 <.01 1.69

1, 2-Dichloroethane................................. <.011 <.01 .375

1,1-Dichloroethane.................................. <.011 <.01 50

1,1-Dichloroethylene................................ <.011 <.01 .7

Diethyl phthalate..................................... <.11 <.0005 50

Dimethyl phthalate.................................. <.11 <.0005 50

2, 4-Dimethylphenol................................. <.13 <.0019 40.4

Di-n-butyl phthalate.................................. <.11 <.0005 50

2, 4-Dintrophenol..................................... <.23 <.0014 4.12

2, 4-Dinitrotoluene.................................... <.22 <.001 .059

Di-n-octyl phthalate.................................. .19J <.0006 50

1,4-Dioxane............................................ <.43 <2 36.5

Ethylbenzene .................................................... .660 <.01 12

Ethylene Dibromide.................................. <.011 <.01 2.74

Fluoranthene .................................................... 3.8 0.0035J 8.78

Fluorene ........................................................... 19.0 0.0085 17.5

Indeno(1,2,3-cd)pyrene ................................... .44J <0.0013 27.3

Lead ................................................................. 43.1 0.0054J 5.0
Mercury ............................................................ 1.46 0.000052J 0.2

MTBE................................................... <.011 <.01 50

m&p -Cresol........................................... 1.60 .024 10.3

Naphthalene .................................................... 90.0 0.086J 1.17

Nickel ............................................................... 212 0.173 48.2

Nitrobenzene.......................................... <.12 <.0008 1.03

4-Nitrophenol....................................... <.22 <.0019 50

o-Cresol............................................. .170J <.001 50

Phenanthrene .............................................. 62.0 .018 50

Phenol............................................... .320J .0033J 50

Pyrene ......................................................... 9.7 0.0026J 15.9

Pyridine............................................. <.11 <.002 2.06

Quinoline........................................... <.11 <.0006 50

Selenium .................................................... 100 .18 1.0

Silver........................................................... .16J <0.007 5.0

Styrene............................................. <.011 <.01 50

Sulfide (total)............................................... 145 N/A 500

Tetrachloroethene............................... .073J <.012 .7

Toluene............................................ .630 .02J 26

1,1,1-Trichloroethane.......................... <.011 <.01 50

Trichloroethene.................................. .0076J <.01 .403

Vanadium ................................................... 114 .13 12.3

Xylenes, Total ............................................. 7.60 .071J 22

Zinc ............................................................. 1140 .227 500

Notes:

(A) These levels represent the highest concentration of each constituent found in any one sample. These levels do not necessarily 

represent the specific levels found in one sample.

(B) Based on lowest level of; nominal upper limit, land disposal restriction limit, RCRA hazardous level or DRAS modeling with a target 

risk of 10–6 and a target HI of 0.1; arsenic and 1,4-Dioxane TCLP at 10-5.