500MIN. 500MIN.
500MIN.
VARIES 1000MIN.
RESPONSE ZONE
DEPTH OF PIEZOMETER ( REFER TO SUMMARY TABLE)
50 INTERNAL DIAMETER UPVC
TUBING (3 THK.MINIMUM)
1:1 CEMENT/BENTONITE BALLS
10-15 DIAMETER OR COMPRESSED
CEMENT/BENTONITE PELLETS
50 INTERNAL DIAMETER UPVC
TUBING (3 THK. MINIMUM)
PIEZOMETER TIP WITH POROUS
ELEMENT
SAND FILTER SURROUND
1:1 CEMENT/BENTONITE BALLS
10-15 DIAMETER OR COMPRESSED
CEMENT/BENTONITE PELLETS
1:1 CEMENT/BENTONITE GROUT
END OF HOLE
no. of standpipe depth of standpipe
(m) below ground surface
proposed
1
35
35
1
34
1
27
1
1
27