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C t t i t l [ t [ t C [ t t t t t i [ Regional Screening Level(RSL)Summary Table April 2012 Key:1=IRIS;P=PPRTV;A=ATSDR C=Cal EPA;X=PPRTV Appendix;H=HEAST;J=Newlersey;Y=New York;0=EPA Office of Water;E=Environmental Criteria and Assessment Office;S=see user guide Section 5;L=see user guide on lead;M=mutagen;V=volatile;F=See FAQ c=cancer;'=where:n SL<100X c SL;+'=where n SL<1OX CSL;n=noncancer;m=Concentration may exceed ceiling limit(See User Guide);s=Concentration may exceed Csat(See User Guide);SSL values are based on DAF=1 Toxicity and Chemiralspedfic Information Contaminant Screening Levels Protection of Ground Water 551, k k k k v SFO a -UR a Rfpo a RfCr e o mrrta- C.n Risk-based MCL-based (M Y, y(ug/mh° y (mg/kg-0ay) y (mg/ma) y c gen GIABS ARS Resident Soil Industrial Soil Resident Air Industrial Air Tapwater MCL SSL SSL Ime/kg) A^aryte CAS No. (mg/kg) key (mg/kg) key (ug/ma) key (ug/ma) key (ug/la key (ug/L) (mg/kg) (mg/kg) 3.0E-04 x 1 0.1 N,N'•Diphenyl-1,4•benzenediamine 74-31-7 1.8E+01 n 1.8E+02 n 2.7E+00 n 2.SE-01 2.0E-03 I1 0.1 Neled 300-76.5 1.2E+02 n L2E+03 n 3.1E+01 n 1.4E-02 3.0E-02 X 1.0E-01 P V 1 Naphtha,High Flash Aromatic(HFAN) 64724-95-6 2.3E+03 n 3.1E+04 1.0E+02 n 4.4E+02 n 1.4E+02 n 1.8E+00 C 0.0E+00 C 1 0,1 Naphthylamine,2- 91.59.8 2.7E-01 a 9.6E-01 3.3E-02 t 1.7E•04 LOE-01 1 1 0.1 NaDropamide 15299-99-7 6.1E+03 n 6.2E+04 n 1.3E+03 n &3E+00 5.0E-02 C 5.0E-05 C 0,04 Nickel Carbonyl 13463.39.3 3JE+03 n 4.4E+04 n 5.2E-02 n 2.2E-01 n 6.7E+02 n S.OE-02 C 1.0E-04 C 1 Nickel Oxide 1313-99.1 3.8E+03 n 4.7E+04 n LOE-01 n 4AE-01 n 7.8E+02 n 2.4E-04 I 5.0E-02 C 5.0E-0S C 0.04 Nickel Refinery Dust NA 3.7E+03 n 4.4E+04 n LOE-02 c•• 5.1E-02 c" 7.6E+02 n 1.1E+02 2.6E-04 C 2.0E-02 1 9.0E-05 A 0.04 Nickel Soluble Salts 7440-02-0 1.5E+03 n 2.0E+00 n 9AE-03 c• 4.7E-02 c•' 3.0E+02 n 2.0E+OS 1.7E+00 C 4.8E-04 I 5.0E-02 C SAE-05 C 0.04 Nickel Subsullide 12035.72-2 3,8E-01 c 1.7E+00 c 5.1E-03 2.6E-02 c•' 3.9E-02 c 1.6E+00 I 1 Nitrate 14797-55-8 1.3E+05 nm 1.6E+06 nm 2SE+04 n 1.0E+04 1.0E-01 I i Nitrite 14797.65-0 7.8E+03 n 1.0E+05 nm 1.6E+03 n 1AE+03 1.0E-02 X 5.0E-05 X 1 0,1 Nitroanliine,2- 88-74-4 6.1E+02 n 6.0E+03 n 5.2E-02 n 2.2E-01 n I.SE+02 n 6.2E-02 2.0E-02 P 4.0E-03 P 6.0E-03 P 1 0.1 Nitroaniline,4• 100-01-6 2.4E+01 c• 8.6E+01 c• 6.3E+00 n 2.6E+01 n 3.3E+00 c' 1.4E-03 4AE-05 t 2.0E-03 I 9.0E-03 I V 1 3.1E+03 Nitrobenzene 98-95-3 4.8E+00 c• 2.4E+01 c' 6.1E-02 c 3.1E-01 c 1.2E-01 c- 7.9E-05 3.0E+03 P 1 0.1 Nitrocellulose 9004.70-0 1.8E+08 nm 1.8E+09 nm 4.7E+07 Is 1.0E+04 7.0E-02 H 1 0.1 Nitrofurantoin 67.20-9 4.3E+03 n 4.3E+04 n 1.1E+03 n 4.7E-01 1.3E+00 C 3.7E-04 C 1 0.1 Nitrofurazone 59.87-0 3.7E-01 c 1.3E+00 c 6.6E-03 c 3.3E-02 c 5.2E-02 c 4.6E-05 1.7E-02 P 1.0E-04 P 1 0.1 Nitroglycerin 55.63-0 6.1E+00 n 6.2E+01 n 1.5E+00 n 6.6E-04 LOE-01 1 0.1 Nitroguanidine 556-88-7 6.1E+03 n 6.2E+04 n 1.6E+03 n 3.8E-01 9.0E-06 P 2.0E-02 P V 1 1.8E+04 Nitromethane 75-52-5 4.9E+00 C. 2.5E+01 c• 2.7E-01 c- L4E+00 c• 5.4E-01 c` 1.2E-04 2.7E-03 H 2,0E-02 I V 1 4.9E+03 Nttropropane,2• 79-46-9 1.3E-02 c 6.4E-02 c 9.0E-04 c 4.5E-03 c S.SE-03 c 4.7E-07 2.7E+01 C 7.7E-03 C M 1 0.1 Nitroso-N<thylurea,N- 759-73.9 4.3E-03 C 6.4E-02 c L2E-04 c LGE-03 c 7.9E-04 c 1.9E-07 1.2E+02 C 3.4E-02 C M 1 0.1 Nitroso-N-methylurea,N• 684-93-5 9.6E-04 c 1.4E-02 c 2.8E-05 c 3.6E-04 c 1.8E-04 c 4.0E-08 5.4E+00 I L6E-03 I V I 7.1E+03 Nitroso-&N.butylamine,N- 924-16-3 8.7E-02 c 4,0E-01 c LSE-03 c 7.7E-03 c 2.4E-03 c 4.8E-06 7.0E+00 I 2.0E-03 C 1 0.1 Nitroso•dFN-61,1N. 621-64-7 6.9E-02 c 2.SE-01 c LZE-03 c 6.1E-03 c 9.3E-03 c 7.0E-06 2.SEa00 I 8.0E-04 C 1 0.1 Nitrosodlethanolamine,N- 1116-54-7 1.7E-01 c 6.2E-01 c 3.0E-03 c L5E-02 c 2.4E-02 c 4.8E-06 1.5E+02 1 4.3E-02 I M I 0.1 Nitrosodiethylamine,N- 55-18-5 7.7E-04 c 1.1E-02 c 2.2E-05 c 2.9E-00 c 1.4E-04 c 5.2E-08 5.1E+01 1 1.4E-02 I 8.0E-06 P 4.0E-05 X M 1 0.1 Nitrosodimethylamine,N- 62-75-9 2.3E-03 c 3.4E-02 c 6.9E-05 c 8.8E-04 c 4.2E-04 c 1.0E-07 4.9E-03 1 2.6E-06 C 1 0.1 Nitrosodiphenylamine,N- 86-30-6 9.9E+01 c 3.5E+02 9.4E-01 c 4.7E+00 1.0E+01 c 5.7E-02 2.2E+01 I 6.3E-03 C 1 0.1 Nitrosomethylethylamine,N- 10595-95-6 2.2E-02 c 7.5E-02 c 3.9E-04 c L9E-03 c 3.0E-03 c &7E-07 6.7E+0D C 1.9E-03 C 1 0.1 Nitrosomorpholine(N-] 59-59-2 7.3E-02 c 2.6E-01 c L3E-03 c 6.5E-03 c LOE-02 c 2.5E-06 9.4E+00 C 2.7E-03 C 1 0.1 Nitrosopiperidine IN-] 100-75-4 5.2E-02 c LBE-01 c 9.0E-04 c 4.5E-03 c 7.1E-03 c 3.SE-06 2.1E+00 I 6.1E-04 1 1 0.1 Nitrosopyrrolidine,N- 930-55-2 2.3E-01 c 8.2E-01 4.0E-03 c 2.0E-02 c 3.2E-02 c L2E-05 LOE-04 X 1 0.3 Nitrotoluene,m- 99-08-1 6.1E+00 6.2E+01 n 1.3E+00 1.2E-03 2.2E-01 P 9.0E-04 P V 1 L5E+03 Nit ':n at o- 88-72-2 2.9E+0D C. L3E+01 c' 2.7E-01 c' 2.5E-04 1.6E-02 P 4.0E-03 P 1 0.1 Nitrotoluene,p- 99-990 3.0E+01 c-- LIE+02 c' 3.7E+00 c 3AE-03 3.0E-04 X 2.0E-01 P V 16.9E+00 Nonane,n- 111-94-2 2.1E+01 ns 2.3E+02 ns 2.1E+02 n 8.8E+02 n 4.6E+00 6.6E-02 4.0E-02 I 1 0.1 NoMomon 27314-13-2 2.4E+03 n 2.5E+04 n 6.0E+02 n 3.9E+00 7.0E-00 1 1 0.1 Nustar 85509-19-9 4.3E+01 n 4.3E+02 8.3E+00 n 1.4E+00 3.0E-03 I 1 0.1 Oc[xbromodiphenyl Ether 32536-52-0 1.6E+02 n 1.8E+03 n 4.7E+01 n 9.3E+00 5.0E-02 I 1 MOD6 Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetra(HMX) 2691.41-0 3.8E+03 n 4.9E+04 7.8E+02 9.9E-01 2.0E-03 H 1 0.1 Oclametbylpyrophosphommide 152-16-9 1.2E+02 L92+03 3.1E+01 7.5E-03 SAE-02 I 1 0.1 Oryzalin 19044-88-3 3.1E+03 n 3.1E+04 n 6.2E+0Z 1.1E+00 5.0E-03 I 1 0.1 Oxadiazon 19666-30-9 3.1E+0Z n 3.1E+03 3.5E+01 3.6E-01 2.5E-02 I 1 0.1 Oxamyl 23135-22-0 1.5E+03 n 1.5E+04 n 3.9E+02 n 2.0E+02 8.6E-02 4.4E-02 1.3E-02 1 1 0.1 Paclobutrazcl 76738-62-0 7.9E+02 n 8.0E+03 n 1.7E+02 3.6E-01 4.5E-03 I 1 0.1 Paraquat Dichloride 1910-42-5 2.7E+02 n 2.8E+03 n 7.0E+01 n 9.7E 01 6.0E-01 H 1 0.1 Parathion 56-38-2 3.7E+02 n 3.7E+03 n 6.5E+01 n 3.3E-01 5.0E-02 H 1 0.1 Pebulate 1114-71-2 3.1E+03 n 3.1E+04 n 4.2E+02 n 3.3E-01 4.0E-02 I 1 0.1 Pendimethalin 40487-42-1 2.4E+03 n 2.SE+04 n 13E+02 n 1.5E+00 2AE-03 I 1 0.1 Pen tabromodiphenyl Ether 32534-81-9 1.2E+02 n 1.2E+03 n 3.1E+01 n 1.4E+00 1.0E-04 I 1 0.1 Pentabromodiphenyl ether,2,2',4,4',5-(BOE-99) 60348-60-9 6.1E+00 n 6.2E+01 n 1.6E+00 n 6.8E-02 &0E-04 I 1 0.1 Pentachlorobenzene 608-93-5 4.9E+01 n 4.9E+02 n 2.3E+00 n 1.7E-02 9.0E-02 P 1 0.1 Pentachloroethane 76-01-7 5.4E+00 c 1.9E+01 c S.6E-01 c 2.7E-04 2.6E-01 H 3.0E-03 I 1 0.1 Pentachloronitrobenzene 82.68.8 1.9E+00 C. 6.6E+00 c LOE-01 c L3E-03 4.0E-01 1 5.1E-06 C S.0E-03 I 1 0.25 Pentachlorophenol 87.86.5 8.9E-01 c 2.7E+00 4.8E-01 c 2.4E+00 c 1.7E-01 c 1.0E+00 1.7E-03 1.0E-02 4.0E-03 % 2,0E-03 P 1 0.1 Pentaerythritol tetranitrate(PETN) 78.11.5 1.2E+02 c•• 4.3E+02 c" 1.6E+01 t'• 2.4E-02 1,0E+0D P V 1 3.9E+02 Pentane,n• 109.66-0 8.7E+02 ns 3.7E+03 ns 1.0E+03 n 4.4E+03 Is 2.1E+03 n 1.0E+01 Perchlorates 7.0E-04 I 1 FAmmonlum Perchlorate 7790-98-9 5.5E+01 Is 7.2E+02 n LIE+01 n 7.0E-04 I 1 ^Lithium Perchlorate 7791-03-9 5.5E+01 n 7,2E+02 n 1.1E+01 n 7.0E-04 I 1 Perchlorateand Perchlorate Salts 14797-73-0 5.5E+01 n 7.2E+02 n 3.1E+01 n 1.5E+01(F) 7.0E-04 1 1 Potassium Perchlorate 7778-74-7 5.SE+01 n 7.2E+02 n 1.1E+01 n 7.0E•09 I 1 "sodium Perchlorate 7601-89-0 5.5E+01 n 7.2E+02 n 1.1E+01 n Page 8 of 12