Pt. 300, App. B 40 CFR Ch. I (7–1–14 Edition) gamma-emitting radionuclides in surface and nonradioactive hazardous substances materials. separately. Compare the concentration of Select the benchmark(s) applicable to the each radionuclide and each nonradioactive pathway (or threat) being evaluated. Com- hazardous substance from the sampling loca- pare the concentration of each radionuclide tion to its respective benchmark concentra- from the sampling location to its benchmark tion(s). Use only those samples and only concentration(s) for that pathway (or those substances in the sample that meet the threat). Use only those samples and only criteria for an observed release (or observed those radionuclides in the sample that meet contamination) for the pathway except: tis- the criteria for an observed release (or ob- sue samples from aquatic human food chain served contamination) for the pathway, ex- organisms may be used as specified in sec- cept: tissue samples from aquatic human tions 4.1.3.3 and 4.2.3.3. If the concentration food chain organisms may be used as speci- of one or more applicable radionuclides or fied in sections 4.1.3.3 and 4.2.3.3. If the con- other hazardous substances from any sample centration of any applicable radionuclide equals or exceeds its benchmark concentra- from any sample equals or exceeds its bench- tion, consider the sampling location to be mark concentration, consider the sampling subject to Level I concentrations. If more location to be subject to Level I concentra- than one benchmark applies to a radio- tions for that pathway (or threat). If more nuclide or other hazardous substance, assign than one benchmark applies to the radio- Level I if the concentration of the radio- nuclide, assign Level I if the radionuclide nuclide or other hazardous substance equals concentration equals or exceeds the lowest or exceeds its lowest applicable benchmark applicable benchmark concentration. In ad- concentration. dition, for the soil exposure pathway, assign If no radionuclide or other hazardous sub- Level I concentrations at the sampling loca- stance individually exceed a benchmark con- tion if measured gamma radiation exposure centration, but more than one radionuclide rates equal or exceed 2 times the background or other hazardous substance either meets level (see section 7.1.1). the criteria for an observed release (or ob- If no radionuclide individually equals or served contamination) for the sample or is exceeds its benchmark concentration, but eligible to be evaluated for a tissue sample, more than one radionuclide either meets the calculate an index I for both types of sub- criteria for an observed release (or observed stances as specified in section 2.5.2. Sum the contamination) for the sample or is eligible index I values for the two types of sub- to be evaluated for a tissue sample (see sec- stances. If the value, individually or com- tions 4.1.3.3 and 4.2.3.3), calculate a value for bined, equals or exceeds 1, assign Level I to index I for these radionuclides as specified in the sample location. If it is less than 1, cal- section 2.5.2. If I equals or exceeds 1, assign culate an index J for the nonradioactive haz- Level I to the sampling location. If I is less ardous substances as specified in section than 1, assign Level II. 2.5.2. If J equals or exceeds 1, assign Level I At sites containing mixed radioactive and to the sampling location. If J is less than 1, other hazardous substances, establish the assign Level II. level of contamination for each sampling lo- cation considering radioactive substances [55 FR 51583, Dec. 14, 1990] APPENDIX B TO PART 300—NATIONAL PRIORITIES LIST TABLE 1—GENERAL SUPERFUND SECTION State Site name City/County Notes(a) AK ........................ Salt Chuck Mine .................................................................... Outer Ketchikan County. AL ........................ Alabama Plating Company, Inc. ............................................ Vincent. AL ........................ American Brass ..................................................................... Headland. AL ........................ Ciba-Geigy Corp. (McIntosh Plant) ....................................... McIntosh. AL ........................ Interstate Lead Co. (ILCO) .................................................... Leeds. AL ........................ Olin Corp. (McIntosh Plant) ................................................... McIntosh. AL ........................ Perdido Ground Water Contamination .................................. Perdido. AL ........................ Redwing Carriers, Inc. (Saraland) ......................................... Saraland. AL ........................ Stauffer Chemical Co. (Cold Creek Plant) ............................ Bucks. AL ........................ Stauffer Chemical Co. (LeMoyne Plant) ................................ Axis. AL ........................ T.H. Agriculture & Nutrition (Montgomery) ............................ Montgomery. AL ........................ Triana/Tennessee River ........................................................ Limestone/Morgan. AR ....................... Arkwood, Inc .......................................................................... Omaha. AR ....................... Cedar Chemical Corporation ................................................. West Helena .......................... S AR ....................... MacMillan Ring Free Oil ........................................................ Norphlet. AR ....................... Mid-South Wood Products ..................................................... Mena. AR ....................... Midland Products ................................................................... Ola/Birta. AR ....................... Monroe Auto Equipment (Paragould Pit) .............................. Paragould. 206 VerDate Mar<15>2010 13:39 Aug 21, 2014 Jkt 232176 PO 00000 Frm 00216 Fmt 8010 Sfmt 8002 Y:\SGML\232176.XXX 232176 pmangrum on DSK3VPTVN1PROD with CFR Environmental Protection Agency Pt. 300, App. B TABLE 1—GENERAL SUPERFUND SECTION—Continued State Site name City/County Notes(a) AR ....................... Mountain Pine Pressure Treating, Inc ................................... Plainview. AR ....................... Ouachita Nevada Wood Treater ............................................ Reader.. AR ....................... Popile, Inc .............................................................................. El Dorado. AR ....................... Vertac, Inc. ............................................................................. Jacksonville. AZ ........................ Apache Powder Co. ............................................................... St. David. AZ ........................ Hassayampa Landfill ............................................................. Hassayampa. AZ ........................ Indian Bend Wash Area ........................................................ Scottsdale/Tempe/Phoenix .... P AZ ........................ Iron King Mine—Humboldt Smelter ....................................... Dewey-Humboldt. AZ ........................ Litchfield Airport Area ............................................................ Goodyear/Avondale. AZ ........................ Motorola, Inc. (52nd Street Plant) ......................................... Phoenix. AZ ........................ Tucson International Airport Area .......................................... Tucson. CA ....................... Advanced Micro Devices, Inc ................................................ Sunnyvale. CA ....................... Advanced Micro Devices, Inc. (Bldg. 915) ............................ Sunnyvale. CA ....................... Aerojet General Corp ............................................................. Rancho Cordova. CA ....................... Alark Hard Chrome ................................................................ Riverside. CA ....................... AMCO Chemical .................................................................... Oakland. CA ....................... Applied Materials ................................................................... Santa Clara. CA ....................... Atlas Asbestos Mine .............................................................. Fresno County. CA ....................... Beckman Instruments (Porterville Plant) ............................... Porterville. CA ....................... Blue Ledge Mine .................................................................... Rogue River—Siskiyou Na- tional Forest. CA ....................... Brown & Bryant, Inc (Arvin Plant) ......................................... Arvin. CA ....................... CTS Printex, Inc. ................................................................... Mountain View. CA ....................... Casmalia Resources .............................................................. Casmalia. CA ....................... Coast Wood Preserving ......................................................... Ukiah. CA ....................... Cooper Drum Company ......................................................... South Gate.. CA ....................... Crazy Horse Sanitary Landfill ................................................ Salinas. CA ....................... Del Amo ................................................................................. Los Angeles. CA ....................... Fairchild Semiconductor Corp. (Mt View) .............................. Mountain View. CA ....................... Fairchild Semiconductor Corp. (S San Jose)