1412 
peta a ARE Sr 
wor no — 42-5 GAUGE DEPTH LET snot no 50-3 GAUGE DEPTH Ler 
chance 250 GM PENTOUTE =— cance wcsice octar 4 FT chance 250 GM PENTOUTE  — cnance m chur ostamce 4 FT 
ce |= 3/8 IN DIAM p__8199 PS! case 3/8 IN DIAM algo pay = 
cuarce veprh 2FT ee SS cuakce verry 2 FT ee LE 
wor mo 49-2 eumt orern 2 FT 
chance 250 OM PENTOLITE Cuance we cause orstance 4 FT 
cuce 3/8 IM DIAM ,, alee 28 
chance ocerH 2 FT a _45.0° crance cepth 2 FY a _46.0° 
shor No: One| Gale nePrq SSS F 
chance 250 GM PENTOLITE CHARGE m GAUGE DISTANCE 4 FT 
cace 3/8 IN DIAM. __ Lyell G Whale 
chance cerry 2 FY wed-3 2 | Se 
FIG 9 
PIEZOELECTRIC GAUGE RECORDS FOR LOW PRESSURE LEVELS 
1. W’/R AT GAUGE, 0205 
A-12001 
Perens 
