FIGURE 1 LOCALITY MAP

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Halton210022

Lockstock Dam210021

Flying Fox Lane210143

Gostwyck_PINEENA210079

Gostwyck_MHL210402

Paterson Railway Bridge210406 0 2 . 5

Dunmore210409 5

Oakhampton Railway Bridge210475

Hinton Bridge210410 Morpeth210430 1 Green Rocks210432

0 Belmore Bridge210458 P R S a t i 1 v r t R e 5 e e a r I r V s s m o E f n l o R

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G a F G t I A c G a h U u U 2 m g G 0 R K e e E E m s n t

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7

6

) 5

4 Gauge Height (m Height Gauge

3

RATINGCURVEAND GAUGINGS ALLYNRIVERHALTON 2

1 Rating Curve

Gaugings FIGURE 5 FIGURE

0 -

0 100 200 300 400 500 600 700 800 210022

Flow (m3/s)

6

5

4

)

3

Gauge Height (m Height Gauge PATERSONRIVER ATLOST

2 RATINGCURVEAND GAUGINGS

1

Rating Curve OCKDAM

Gaugings FIGURE 6 FIGURE

0 -

0 100 200 300 400 500 600 210021

Flow (m3/s)

13

12

11

10

9

) 8

7

Gauge Height (m Height Gauge 6

5 ALLYNRIVERFLYING FOX LANE

4 RATINGCURVEAND GAUGINGS

3

2 Rating Curve

1 Gaugings FIGURE 7 FIGURE

0 -

0 100 200 300 400 500 210043

Flow (m3/s)

18

16

14

1971 1931 12 1931

) 1931 1931 2001 10

2001

PATERSONRIVER GOSTWYCKPINEENA Gauge Height (m Height Gauge 8

6 RATINGCURVEAND GAUGINGS

4

Rating Curve 2

Gaugings

-

FIGURE 8 FIGURE 2100079

0 0 200 400 600 800 1000 1200 1400 1600 1800 Flow (m3/s) 14 210079 (Gostwyck) - PINEENA Note - Levels for 210079 recorded 4km upstream of Gostwyck Bridge

12

10

8

6 Gauge Height GaugeHeight (m)

4

WATERLEVELDATA MARCH1977 EVENT

2 FIGURE 9 FIGURE

0 2/03/1977 3/03/1977 4/03/1977 5/03/1977 6/03/1977 7/03/1977 8/03/1977 Date 16 210079 Paterson River (Gostwyck) - PINEENA 210022 (Halton) Note - Levels for 210079 recorded 14 4km upstream of Gostwyck Bridge

12

10

8 Gauge Height GaugeHeight (m)

6

4

WATERLEVELDATA MARCH1978 EVENT

2 FIGURE 10 FIGURE

0 18/03/1978 19/03/1978 20/03/1978 21/03/1978 22/03/1978 23/03/1978 24/03/1978 Date 18 Paterson River (Dunmore) Note - Levels for 210079 recorded 210079 Paterson River (Gostwyck) - PINEENA 4km upstream of Gostwyck Bridge 210432 Hunter River (Green Rocks) 16 Hunter River (Morpeth) Paterson River (Railway Bridge) 210022 Allyn River (Halton) 14

12

10

8 Gauge Height GaugeHeight (m)

6

4

OCTOBER WATERLEVELDATA

2

1985 1985

FIGURE 11 FIGURE EVENT 0 12/10/1985 13/10/1985 14/10/1985 15/10/1985 16/10/1985 Date 16 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 210402 Paterson River (Gostwyck) - PINEENA 14 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 210430 Hunter River (Morpeth) 210406 Paterson River (Railway Bridge) 12 210021 Paterson River (Lockstock ) 210022 Allyn River (Halton)

10

8 Geuge Height (m)

6

4

FEBRUARY1990 EVENT WATERLEVELDATA

2 FIGURE 12 FIGURE

0 1/02/1990 2/02/1990 3/02/1990 4/02/1990 5/02/1990 6/02/1990 7/02/1990 8/02/1990 9/02/1990 Date 12 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 210402 Paterson River (Gostwyck) - PINEENA 210432 Hunter River (Green Rocks) 10 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 210430 Hunter River (Morpeth) 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) 8 210022 Allyn River (Halton)

6 Gauge Height GaugeHeight (m)

4 WATERLEVELDATA

2 MARCH1995 EVENT FIGURE 13 FIGURE

0 3/03/1995 4/03/1995 5/03/1995 6/03/1995 7/03/1995 8/03/1995 9/03/1995 10/03/1995 11/03/1995 Date 16 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 14 210402 Paterson River (Gostwyck) - PINEENA 210432 Hunter River (Green Rocks) 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 12 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) 10 210022 Allyn River (Halton)

8 Gauge Height GaugeHeight (m)

6

4

WATERLEVELDATA MARCH2001 EVENT

2 FIGURE 14 FIGURE

0 6/03/2001 7/03/2001 8/03/2001 9/03/2001 10/03/2001 11/03/2001 12/03/2001 13/03/2001 14/03/2001 15/03/2001 16/03/2001 Date 16 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 14 210402 Paterson River (Gostwyck) - PINEENA 210432 Hunter River (Green Rocks) 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 12 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) 10 210143 Allyn River (Flying Fox Lane) 210022 Allyn River (Halton)

8 Gauge Height GaugeHeight (m)

6

4

WATERLEVELDATA JUNE

2

2007 2007

FIGURE 15 FIGURE EVENT 0 7/06/2007 8/06/2007 9/06/2007 10/06/2007 11/06/2007 12/06/2007 13/06/2007 14/06/2007 15/06/2007 16/06/2007 17/06/2007 Date 16 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 14 210402 Paterson River (Gostwyck) - PINEENA 210432 Hunter River (Green Rocks) 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 12 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) 10 210143 Allyn River (Flying Fox Lane) 210022 Allyn River (Halton)

8 Gauge Height GaugeHeight (m)

6

4

WATERLEVELDATA JUNE

2

2011 2011

FIGURE 16 FIGURE EVENT 0 11/06/2011 12/06/2011 13/06/2011 14/06/2011 15/06/2011 16/06/2011 17/06/2011 18/06/2011 19/06/2011 20/06/2011 21/06/2011 Date 16 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 210402 Paterson River (Gostwyck) - PINEENA 14 210432 Hunter River (Green Rocks) 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 12 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) 210143 Allyn River (Flying Fox Lane) 210022 Allyn River (Halton)

10

8 Gauge Height GaugeHeight (m)

6

4

WATERLEVELDATA MARCH2013 EVENT

2 FIGURE 17 FIGURE

0 22/02/2013 24/02/2013 26/02/2013 28/02/2013 2/03/2013 4/03/2013 6/03/2013 8/03/2013 10/03/2013 Date 14 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 210402 Paterson River (Gostwyck) - PINEENA 12 210432 Hunter River (Green Rocks) 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 10 210406 Paterson River (Railway Bridge) 210021 Paterson River (Lockstock Dam) - PINEENA 210143 Allyn River (Flying Fox Lane) - PINEENA 210022 Allyn River (Halton) - PINEENA

8

6 Gauge Height GaugeHeight (m)

4

NOVEMBER 2013EVENT WATERLEVELDATA

2 FIGURE 18 FIGURE

0 17/11/2013 18/11/2013 19/11/2013 20/11/2013 21/11/2013 22/11/2013 Date 18 210458 Hunter River (Belmore Bridge) 210409 Paterson River (Dunmore) 210402 Paterson River (Gostwyck) - MHL 16 210079 Paterson River (Gostwyck) - PINEENA 210410 Paterson River (Hinton Bridge) 210455 Hunter River (McKimms Corner) 14 210430 Hunter River (Morpeth) 210475 Hunter River (Oakhampton) 210406 Paterson River (Railway Bridge) 12 210021 Paterson River () 210022 Allyn River (Halton) - PINEENA

10

8 Gauge Height GaugeHeight (m) 6

4

2

WATERLEVELDATA APRIL

0

2015 2015

FIGURE 19 FIGURE EVENT

-2 20/04/2015 12:00 21/04/2015 6:00 22/04/2015 0:00 Date 22/04/2015 18:00 23/04/2015 12:00 FIGURE 20 PLUVIOMETER RAIN GAUGES

Gostwyck 210402 Paterson (Tocal AWS) 61250

Belmore Bridge 210458

Allyn River (Halton) 210022

Lostock Dam 61288

Glendon Brook (Lilyvale) 61158

Pokolbin (Kiera) d x 61237 m . s Pokolbin (Somerset) e g 61238 u a

G Pokolbin (Mount Bright) Millfield Composite n i 61174 a 61183 R i v Mount Bright (Mount View Range) u l 61314 P _ 0 2 e r u g i F \ s e r u g i F _ t r o p e R \ s p a ´ M c r A \ c

r Pluviometer Gauges A \ 4

8 Paterson Catchment 0 4 1 1 \ s Km b o

J 0 2.5 5 10 15 20 \ : J FIGURE 21 Hunter Springs (Wondecla) DAILY RAINFALL GAUGES 61346 !( Moppy Lookout (Barrington Tops) 60153 !( Moonan Flat (High St) 61097 (Pampas) !( 61399 Gloucester (Upper Bowman) !( Cobark 60075 60152 !( !(

Barrington Tops () 61418 (Barrington Tops) !( 61413 !(

Upper Rouchel (Mount View) 61135 !(

Craven (Longview) 60042 Rouchel (Bonnie Doon) Upper Allyn Township !( 61290 61315 !( !( !( Upper Chichester (Simmonds) (Albano) 61350 61095 !(

Carrabolla (Woodbury) 61151 61241 !( Cabbage Tree Mountain !( 60096 Bowmans Creek (Grenell) Carrow Brook Dungog - Main Creek (Yeranda) !( 61270 61146 61170 !( !( !(

Lostock Dam 61288 !( Dungog (Monkerai Hill (Urimbirra)) !( Dungog (Leawood) 61106 61364 !( Dungog (Upper Myall Creek( Mirannie (Maeranie Station) !( 61415 Dungog Post Office Stroud Post Office 61420 !( 61017 61071 !( !( Gresford Post Office 61024 !(

Glendon Brook (Lilyvale) Hilldale (Sundance) 61158 !( 61160 d

x !( m . s Clarencetown (Mill Dam Falls (Williams River)) e Cranky Corner (Tangory Moutain) g 61339 u 61421 !( a !( G Elderslie Gostwyck Bridge (Paterson River) !( Clarence Town (Prince St) n Singleton STP i Paterson Post Office 61010 a 61397 61092 61349 !( R !( 61096 y !( l Bulga (South Wambo)

i !( a 61191 Paterson (Tocal AWS) D !( _ Branxton (Dalwood Vineyard) 61250 1 !( 2 61014

e Bulga (Downtown) r !( (Carrington (Chuch St)) u 61143 g i !( Woodville (Clarence Town Rd) 61072 F

\ !( s 61405 e !( r u Milbrodale School g i 61422 F

_ !( t Maitland Belmore Bridge (Hunter River) r Tanilba Bay WWTP o 61268 Maitland Visitor Centre p !( 61395 e 61388 !(

R !( \ s Grahamstown (Hunter Water Board) p Broke (Harrowby a 61311 Willamtown RAAF M 61100 !(!( ´ AWS c !( r 61078

A 61260 (Kinross)

\ !(

c !( r 61031 Paterson Catchment A \ !( 4 Heddon Greta (Kurri Kurri Golf Club) 8 !( Daily Rainfall Gauges 0 61414 4 1 1 \ s Km b o

J 0 7.5 15 30 45 60 \ : J !( FIGURE 22 RAINFALL DATA MARCH 1977 EVENT

180 61158 Glendon Brook (Lilyvale)

160 61288 Lockstock Dam

140

120

100

80 Total Rainfall TotalRainfall (mm)

60

40

20

0 1/03/1977 9:00 2/03/1977 9:00 3/03/1977 9:00 4/03/1977 9:00 5/03/1977 9:00 6/03/1977 9:00 Date 100 61158 Glendon Brook (Lilyvale) 90 61288 Lockstock Dam

80

70

60

50

40 Percentage ofTotal Rainfall 30

20

10

0 1/03/1977 9:00 2/03/1977 9:00 3/03/1977 9:00 4/03/1977 9:00 5/03/1977 9:00 6/03/1977 9:00 Date FIGURE 23 RAINFALL L DATA MARCH 1978 EVENT

300 61250 Paterson (Tocal AWS)

61288 Lockstock Dam 250

200

150 Total Rainfall TotalRainfall (mm)

100

50

0 17/03/1978 9:00 18/03/1978 9:00 19/03/1978 9:00 20/03/1978 9:00 21/03/1978 9:00 22/03/1978 9:00 Date 100

90

80

70

60

50

40

61250 Paterson (Tocal AWS) Percentage ofTotal Rainfall 30 61288 Lockstock Dam

20

10

0 17/03/1978 9:00 18/03/1978 9:00 19/03/1978 9:00 20/03/1978 9:00 21/03/1978 9:00 22/03/1978 9:00 Date FIGURE 24 RAINFALL DATA MARCH 2001 EVENT

300 61250 Paterson (Tocal AWS) 61288 Lockstock Dam 210458 Belmore Bridge 250 210402 Gostwyck 210022 Halton

200

150 Total Rainfall TotalRainfall (mm)

100

50

0 6/03/2001 9:00 8/03/2001 9:00 10/03/2001 9:00 12/03/2001 9:00 Date 100

90

80

70

60

50

40 Percentage ofTotal Rainfall 30 61250 Paterson (Tocal AWS) 61288 Lockstock Dam 20 210458 Belmore Bridge 210402 Gostwyck 10 210022 Halton 0 6/03/2001 9:00 8/03/2001 9:00 10/03/2001 9:00 12/03/2001 9:00 Date FIGURE 25 RAINFALL DATA JUNE 2007 EVENT

350 61288 Lockstock Dam 210458 Belmore Bridge 300 210402 Gostwyck 210022 Halton

250

200

150 Total Rainfall TotalRainfall (mm)

100

50

0 6/06/2007 9:00 7/06/2007 9:00 8/06/2007 9:00 9/06/2007 9:00 10/06/2007 9:00 Date 100 61288 Lockstock Dam 210458 Belmore Bridge 210402 Gostwyck

210022 Halton

50 Percentage ofTotal Rainfall

0 6/06/2007 9:00 7/06/2007 9:00 8/06/2007 9:00 9/06/2007 9:00 10/06/2007 9:00 Date FIGURE 26 RAINFALL DATA JUNE 2011 EVENT

300 61250 Paterson (Tocal AWS) 61288 Lockstock Dam 250 210458 Belmore Bridge 210402 Gostwyck 210022 Halton

200

150 Total Rainfall TotalRainfall (mm)

100

50

0 11/06/2011 9:00 12/06/2011 9:00 13/06/2011 9:00 14/06/2011 9:00 15/06/2011 9:00 16/06/2011 9:00 Date 100 61250 Paterson (Tocal AWS) 90 61288 Lockstock Dam 210458 Belmore Bridge 80 210402 Gostwyck 210022 Halton

70

60

50

40 Percentage ofTotal Rainfall 30

20

10

0 11/06/2011 9:00 12/06/2011 9:00 13/06/2011 9:00 14/06/2011 9:00 15/06/2011 9:00 16/06/2011 9:00 Date FIGURE 27 RAINFALL DATA MARCH 2013 EVENT

400 61158 Glendon Brook (Lilyvale)

350 210458 Belmore Bridge

210402 Gostwyck 300 210022 Halton

250

200

Total Rainfall TotalRainfall (mm) 150

100

50

0 20/02/2013 9:00 22/02/2013 9:00 24/02/2013 9:00 26/02/2013 9:00 28/02/2013 9:00 2/03/2013 9:00 4/03/2013 9:00 Date

100 61158 Glendon Brook (Lilyvale) 90 210458 Belmore Bridge 80 210402 Gostwyck

70 210022 Halton

60

50

40 Percentage ofTotal Rainfall 30

20

10

0 20/02/2013 9:00 23/02/2013 9:00 26/02/2013 9:00 1/03/2013 9:00 4/03/2013 9:00 Date FIGURE 28 RAINFALL L DATA NOVEMBER 2013 EVENT

300 61250 Paterson (Tocal AWS) 61288 Lostock Dam 250 210458 Belmore Bridge 210402 Gostwyck 210022 Halton

200

150 Total Rainfall TotalRainfall (mm)

100

50

0 16/11/2013 9:00 17/11/2013 9:00 18/11/2013 9:00 19/11/2013 9:00 20/11/2013 9:00 Date 100 61250 Paterson (Tocal AWS) 90 61288 Lostock Dam 210458 Belmore Bridge 80 210402 Gostwyck 210022 Halton

70

60

50

40 Percentage ofTotal Rainfall 30

20

10

0 16/11/2013 9:00 17/11/2013 9:00 18/11/2013 9:00 19/11/2013 9:00 20/11/2013 9:00 Date FIGURE 29 RAINFALL L DATA APRIL 2015 EVENT

500 210458 Belmore Bridge 210402 Gostwyck 210022 Halton

400

300

200 Total Rainfall TotalRainfall (mm)

100

0 20/04/2015 9:00 21/04/2015 9:00 22/04/2015 9:00 23/04/2015 9:00 Date 100 210458 Belmore Bridge 90 210402 Gostwyck 210022 Halton 80

70

60

50

40 Percentage ofTotal Rainfall 30

20

10

0 20/04/2015 9:00 21/04/2015 9:00 22/04/2015 9:00 23/04/2015 9:00 Date