Figure 2: Proposed Monitoring Well MW-24 Well Construction, Tutu Wells Site, St. Thomas, U.S. Virgin Islands
PVC CAP CE Q o CD O § UJ5 1 o CO oz REINFORCED CONCRETE DRILLER WILL CUT DOWN CASING FLUSH TO GRADE AFTER DRILLING. (UNDER SEPARATE CONTRACT) SURFACE /-VAPOR ELEV. 0' / BARRIER ^ / V ^•UNDISTURBED SOIL (TYP.) COMPACTED BACKFILL * MIN. 24" DIA. PERMANENT PVC CASING CONCRETE CAP, BY DRILLER (UNDER SEPARATE CONTRACT) LIMIT OF EXCAVATION SLOPE AS REQ'D TO MAINTAIN STABILITY (TYP.) DIA. PERMANENT CASING, BY DRILLER (UNDER SEPARATE CONTRACT) 18" DIA. BOREHOLE (71 TO 17' BLS) 12" DIA. SET CASING IN BEDROCK, BY DRILLER. (UNDER SEPARATE CONTRACT) (APPROX. ELEV. -17' BLS) NEET CEMENT / BENTONITE GROUT (UNDER SEPARATE CONTRACT) 6" DIA. STAINLESS STEEL CASING, BY DRILLER (UNDER SEPARATE CONTRACT) 12" DIA. SET CASING IN BEDROCK BY DRILLER (UNDER SEPARATE CONTRACT) BEDROCK ELEV. -15' BLS F% 10" DIA. BOREHOLE (17* TO 20' BLS) (UNDER SEPARATE CONTRACT) 5-7/8" DIA. OPEN HOLE BY DRILLER (UNDER SEPARATE CONTRACT) (20' TO 30' BLS) NOT TO SCALE ~ ELEV. -17' BLS ELEV. -20' BLS ELEV. -30' BLS NOTE: ELEVATIONS ARE REFERENCED TO LAND SURFACE ELEV. = 0.0 BLS = BELOW LAND SURFACE oi o GERAGHTY & MILLER, INC. …
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PVC CAP CE Q o CD O § UJ5 1 o CO oz REINFORCED CONCRETE DRILLER WILL CUT DOWN CASING FLUSH TO GRADE AFTER DRILLING. (UNDER SEPARATE CONTRACT) SURFACE /-VAPOR ELEV. 0' / BARRIER ^ / V ^•UNDISTURBED SOIL (TYP.) COMPACTED BACKFILL * MIN. 24" DIA. PERMANENT PVC CASING CONCRETE CAP, BY DRILLER (UNDER SEPARATE CONTRACT) LIMIT OF EXCAVATION SLOPE AS REQ'D TO MAINTAIN STABILITY (TYP.) DIA. PERMANENT CASING, BY DRILLER (UNDER SEPARATE CONTRACT) 18" DIA. BOREHOLE (71 TO 17' BLS) 12" DIA. SET CASING IN BEDROCK, BY DRILLER. (UNDER SEPARATE CONTRACT) (APPROX. ELEV. -17' BLS) NEET CEMENT / BENTONITE GROUT (UNDER SEPARATE CONTRACT) 6" DIA. STAINLESS STEEL CASING, BY DRILLER (UNDER SEPARATE CONTRACT) 12" DIA. SET CASING IN BEDROCK BY DRILLER (UNDER SEPARATE CONTRACT) BEDROCK ELEV. -15' BLS F% 10" DIA. BOREHOLE (17* TO 20' BLS) (UNDER SEPARATE CONTRACT) 5-7/8" DIA. OPEN HOLE BY DRILLER (UNDER SEPARATE CONTRACT) (20' TO 30' BLS) NOT TO SCALE ~ ELEV. -17' BLS ELEV. -20' BLS ELEV. -30' BLS NOTE: ELEVATIONS ARE REFERENCED TO LAND SURFACE ELEV. = 0.0 BLS = BELOW LAND SURFACE oi o GERAGHTY & MILLER, INC. Environmental Services PROPOSED MONITORING WELL MW-24 WELL CONSTRUCTION TUTU WELLS SITE ST. THOMAS, U.S. VIRGIN ISLANDS FIGURE TUT 006 1121 *64717* 64717