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Clayton E\I IRp\tIE�3.41 CgtiSLiriNTS 1 CONTENTS i Pape t s 1.0 mv . . . . . . . . 1.1 BACKGROUND . . . . . . . . . . . . . . . . . . . . : . . . . . . . . . . . . . . . . . . . . . i 1.2 PURPOSE . . 1 .i 1.3 HYDROGEOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 �• 2.0 S O 1VI NTAI.ASSESSMENT . . . . . . . . . . . . . . . . . . . . 3 3.0 ffiSTALLAMON OF MONITOIiTNG WELLS MW- ;� 2 N May 3.1 ANALYTICAL SAMPLING PLAN . . . . . . . . . 3 IA3.2 SOIL SAMPLE ANALYTICAL RESULTS. . . . . . . . . . . • . . , . . . . a 3.3 GROUNDWATER ANALYTICAL RES . . . . . . . . . . ULTS 4 l ' 4.0 EXCAVA ONAND SOIL AERATION . . . . . . . . . . . . . . { 4.1 EXCAVATION AND SAMPLING . . . . . . . . . . . . . 4 4,1.1 initial_Excavation 5 4.1.2 Overexc va is . . . . . . . . . . . . . . . . . . . . . . . 5 4.1.3 Septic Tank Excavation and Removal . . . . . . . . . . . : . . . . . . 6 42 SOIL AERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1. 4.3 EXCAVATION BACI�FJ[LL 7 4.4 EXCAVATION AND AERATIO . . . . . . . . . . . . 7 N CONCLUSIONS . . . . . . . . . . . . . . . . 5.0 ADDITIONAL INVPSTIGATfON . 8. 5.1 AD;�TFIONAL INVESTIGATION . . . . . . . . . . . . ' . . . . . 1, 5.2 MONITORING WELL AND DOMESTIC WATER WELL8 ABANDONMENT. y . z 5.3 QUARTERLY GROUND WATER SAMPLING JANUARY 1991 . . . . 9 6.0 ADDMOML SO INVESTIGATION AND GROUNDWAILD . SAMPLING . . . . . . . . . . . . . . . . . . . . . . 9 5.1 INSTALLATION OF BOREHOLES AROUND MW-3B. . . . . 10 f` 6.2 SEPTIC TANK#2 REMOVAL 6.3 QUARTERLY GROUT IDWATER SAMPLING ' . . . . . . . . . 10 r -APRIL 5 � 6.4 ADDI'T'IONAL SOIL INVESTIGA'hTON CONCLUSIONS t�E 7.0 . REFERENCE . . 11 ll - 1.4