**Apendix I: Summary table of groundwater trends for the selected bores from the two study areas**

1Bore screened in the Cape Flats aquifer 2Bore screened in the Werribee Delta aquifer

Changes in Groundwater Level Dynamics in Aquifer Systems –

**bores in the study areas** 



**Depth (m)**

**Depth (m)**

Implications for Resource Management in a Semi-Arid Climate 95

**Water levels with accumulative annual residual rainfall for B59539 (2.7-8.5m) (0 months delay)**

Long-term trend with ARR Water level B59539 (2.7-8.5m) Fitted for all monthly intervals

**Bore on the Werribee Plain (Deltaic Sediments)**

Jan-85 Jan-90 Jan-95 Jan-00 Jan-05 Jan-10

**Water levels with accumulative monthly residual rainfall for B59531 (20-26m) (0 months delay)**

Long-term trend with ARR Water level B59531 (20-26m) Fitted for all monthly intervals

**Bore on the Werribee Plain (Deltaic Sediments?)**

Jan-85 Jan-90 Jan-95 Jan-00 Jan-05 Jan-10

**Appendix II c: HARTT analysis graph for Bore 59531 (from Werribee Plains)** 

Effect of rainfall Linear (Water level B59531 (20-26m))




0

0.2

0.4

**Effect of Rain (m)**

0.6

0.8

1

**Effect of Rain (m)**

**Appendix II: Some examples of HARTT analysis graphs from the selected** 

**Appendix II a: HARTT analysis graph for Bore 59539 (from Werribee Plains)** 

Effect of rainfall Linear (Water level B59539 (2.7-8.5m))

**Apendix I: Summary table of groundwater trends for the selected bores from** 

**the two study areas** 

Trend (cm/yr)

Bore Location Depth (m)

Best Fit Delay (months)

selected

C Acc. Residual Rainfall (mm)

Time (month)

Monitoring period (years) No. readings

one

Initial Final AARR value p value p

G30944 Atlantis1 -7.0 -6.2 3 0.54 -6.23 0.0039 0.0000 -0.0061 0.0000 17 162 -7.3

PA20 Atlantis1 -3.6 -3.8 1 0.45 -3.70 0.0013 0.0000 -0.0014 0.0167 16 96 -1.7

WP167 Atlantis1 -10.6 -11.1 2 0.68 -11.08 0.0098 0.0000 0.0007 0.7462 13 111 0.9

WP184 Atlantis1 -8.2 -9.0 0 0.37 -10.42 0.0089 0.0000 0.0129 0.0003 12 105 15.5

DC182 Bellville1 -2.1 -4.1 0 0.33 -5.89 0.0062 0.0000 0.0068 0.0934 10 83 8.2

DC184 Bellville1 -1.8 -1.6 0 0.33 -2.14 0.0012 0.0000 0.0027 0.0001 10 73 3.3

BA002 Philippi1 -6.5 -6.8 2 0.38 -6.21 0.0008 0.0000 -0.0020 0.0000 28 156 -2.5

1Bore screened in the Cape Flats aquifer 2Bore screened in the Werribee Delta aquifer

BA076 Philippi1 -4.7 -4.2 0 0.69 -3.67 0.0013 0.0000 -0.0015 0.0000 28 126 -1.8

BA083 Philippi1 -4.6 -3.8 0 0.38 -1.78 0.0047 0.0000 -0.0075 0.0000 32 172 -9.0

BA084 Philippi1 -4.5 -3.9 0 0.38 -2.48 0.0035 0.0000 -0.0050 0.0000 32 145 -6.0

BA232 Philippi1 -2.7 -2.3 0 0.57 -3.99 0.0030 0.0000 0.0121 0.0000 10 33 14.5

B59520 Werribee2 -2.6 -2.2 0 0.08 -2.80 0.0001 0.0039 0.0003 0.2578 26 250 0.4

B59521 Werribee2 -3.1 -2.6 0 0.05 -3.17 0.0001 0.0135 0.0003 0.2419 26 251 0.4

B59523 Werribee2 -2.0 -1.6 0 0.53 -2.41 0.0005 0.0000 -0.0008 0.1535 26 248 -1.0

B59525 Werribee2 -5.7 -3.8 0 0.51 -6.03 0.0013 0.0000 -0.0016 0.2216 26 263 -1.9

B59531 Werribee2 -10.1 -9.8 0 0.74 -10.23 0.0006 0.0000 -0.0008 0.0345 26 248 -0.9

B59533 Werribee2 -3.6 -3.2 0 0.16 -3.58 0.0001 0.0010 0.0001 0.5042 26 246 0.2

B59536 Werribee2 -5.9 -4.1 0 0.58 -6.69 0.0013 0.0000 -0.0028 0.0370 26 247 -3.4

B59537 Werribee2 -2.8 -2.5 0 0.05 -3.02 0.0001 0.1641 0.0000 0.8788 25 244 -0.1

B59539 Werribee2 -4.5 -2.5 0 0.32 -4.88 0.0009 0.0049 -0.0032 0.1043 25 247 -3.8

B112802 Werribee2 -7.7 -6.8 0 0.60 -11.68 0.0028 0.0000 0.0105 0.0046 19 176 12.7

B113018 Werribee2 -3.9 -3.6 0 0.50 -5.34 0.0009 0.0000 0.0036 0.0094 19 176 4.3

R2 for
