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Our Catchment by sdowling
gov
Read environment section
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Garawarra State Recreation Area
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Royal National Park
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Woronora Dam
otfordeco
Coal Seam Gas
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Waratah Rivulet
wikipedia
Helensburgh - Wikipedia
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Hacking Catchment
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Rainfall figures
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Helensburgh Landcare
newmatilda
Borehole in catchment
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Rezoning of land