1888 Proposal advanced for the O'Shannassy Scheme
1895
Standpipe installed near Whitehorse Inn
1891 New Main connected from Yan
Yean Reservoir to Surrey Hills
1892 Surrey Hills Reservoir No. 1 completed
Early
1900s Sewerage extended into Surrey Hills
1902-1905
Reticulation extended to Surrey Hills and Mont Albert
1913 O'Shannassy
System commissioned
1910 O'Shannassy Watershed vested in MMBW
1912
O'Shannassy Sxheme - first construction contracts arrranged
1914 New pipeline
from Launching Place to O'Shannassy System connected
1915 Pipeline from
Yan Yean to Surrey Hills abandoned
1925 Pipehead reservoir built at Olinda
- connected to Mitcham Reservoir
1929 Surrey Hills No.2 Reservoir Water Tower commissioned
