STEP DRAWDOWN TEST DATA PLOT = Drawdown data. X = Recovery data. LOCALITY
Phalaborwa
Foskor NPM Phase II
BOREHOLE NO:NPM11D
DATE TESTED 27/3/2011 DISCHARGE RATES (Q) Q1 = 2.00 l/s Q2 = 4.43 l/s Q3 = 8.65 l/s Q4 = 10.46 l/s Q5 = 0.00 l/s Q6 = 0.00 l/s S.W.L = 1.20 m.b.g.l.CONSTANT DISCHARGE TEST DATA PLOT
= Drawdown data. = Recovery data. LOCALITY
Phalaborwa
Foskor NPM Phase II
PUMPED B.H. NO:NPM7S
DATE TESTED 28/3/2011 Q = 5.65 l/s. S.W.L = 1.43 m.b.g.l. T = 108 m²/daySpec. Cap. = 0.041 m3/day/m
0 20 40 60 80 100 120 140 160 1 10 100 1000 D ra w d o w n s (m) Time t (min.) R e s idua l D ra w do w n s ' ( m) . (T+t)/t 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 0.1 1 10 100 1000 D ra w do w n s (m) Time ( t ) mins.
