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200204921 Notification of Hazardous Substance Storage, Release, and Disposal Building and Parcel Name of Stored Date of Storage, Release, Remedial Action Description Hazardous Released Disposal Substances Disposed Southern Tier - South Magazine Area - Tract 48 Ammonium nitrate, aluminum powder, TNT, Stored World War II, Korea and No remediation is required- and 117 magazines R -1 -1 RDX, HMX Vietnam Wars Record of Decision ROD through R -8 -15. Operable Unit Two (OU2) - No Further Remedial Action Magazine buildings R -2 -2, R -5 -5, Soil sampling in 1991 detected a low con- Released 1991 EA Soil Sampling Final Document of the Remedial R -6 -2, R -6 -4, R -7 -5, R -7 -8, centration of lead 26.9 u /g) at Magazine R -5 -5 Investigation Report dated R -7 -11, R -7 -13, R -7 -14, R -8 -1 and and a low concentration of 246TNT 0.57 u /g) November 1996 states that the R -8 -14 at Magazine R -64. Both fall below Industrial and concentrations of 246TNT in Residential RBCs and USEPA residential screening sam les appear to .screening levels for Pb of 400 ug/g. u /g. overestimate the actual 246TNT contamination at the South Biased sampling at Magazines R -7 -8, R -7 -11 Released 1993 SCD Soil Sampling Magazine Area. Based on the and R -7 -13 did detect 246TNT 1.23 - 1.71 u /g) Results Biased sampling, rid absence of 246TNT with the but explosives were not detected in any of the sampling and confirmation except of 0.57 ug/g u /g detected in a confirmation analyses. sampling). sample collected in the 1991 from Grid sampling at Magazine R -6 -4 indicated Released Magazine R -6 -4 and low con - no detection of 246TNT. All Pb concentrations centrations of inorganic anal es detected screening samples below the USEPA detected in confirmation surface Residential screening level of 400 u J , soil samples collected during 1991 Confirmation sampling no explosives were Released and 1993, the South Magazine Area detected in any samples. is not considered a major source Chromium 17.8 u /g) at Magazine R -6 -2, of contamination at CHAAP. Pb 150 u /g) at Magazine R -6 -2 and Zn Record of Decision ROD 52.2 - 115 u /g) at Magazines R -2 -2, R -6 -2, Operable Unit Two 01.12 - No R -7 -5, R -7 -14, R -8 -1 and R -8 -14 were detected Further Remedial Action above the upper limit of background but all fall below the Industrial and Residential RBCs. Based on analytical results from the 1991 EA 1995 RI Soil Sample Results and 1993 SCD, additional surface soil sampling was not included as part of the 1995 RI effort. Determined and Prepared by: Title: Site: Location: Ms. Jo Short Realty Specialist Cornhusker Army Ammunition Plant Grand Island, NE 68803 EXHIBIT "C" EXHIBIT "C" ATTACHED TO AND MADE A PART OF QUITCLAIM DEED