Page 29 - City of Cessnock Water Supply and Sewerage Service Utility

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During this period of renovation of the major water pumping stations at
Neath structual alterations and a facelift were made to the building. A new
main switchboard and electric power sub-station were installed.

Improvements were commenced in July 1976 to Cessnock sewerage system.

A "Jay & Short" centrifugal type pump was stransferred from Maitland sewerage

treatment works to Cessnock. This pump had a five (5") inch suction and a
five (5") inch drive movement. It operated at 725 revolutions per minute to
produce 84 gallons per minute for a 30 feet lift. The pump was driven by a
7~ H.P. A.G.E. protected squirrel-caged motor (415 volts, 3 phase, 50 cycles).
On 10th August 1977 two of the sewerage pumps at the Cessnock pumping station
were renewed. H.D.W.B. contract No. 657 for a cost of $17,600.00 each
authorised the purchase of the two "Thomspon-Byron Jackson" vertical spindle pumps . .
These pumps operated at 750 revolutions per minute to produce 300 gallonSper
minute for a lift of 60 feet. Two "Yaskawa" drip-proff double winding electric
motors (415 volts, 3 phase, 50 cycles), which also operated at 750 revolutions
per minute, drove the pumps Each "Yaskawa" motor had cost $16,744.00. Each
electric motor had a James Watt starter motor (240 volt single phase). The
starter motors were purchased by the Water Board by contract No. 685 at a cost
of $15,820.00.

Kurri sewerage system also received attention to provide additional storage
capacity. On the 18th September, 1978 by the authority of the H.D.W.B. contract
No. 750. Warman International Company supplied a replacement sludge pump.' . This
was a "Warman" type 4/4 E.V.P. torque flow pump. The price had been $4736.75
plus an additional amount to cover spare parts $621.75, test $208.00 and freight
$50.00. The pump worked at 970 revolutions per minute to produce 450 gallons
per minute for a 30 feet lift. It was driven by a "Brook" drip-proof 10H.P.
electric motor which operated at 970 revolutions per minute. It cost had been
$640.00.

In March 1977 work was commenced on the replacement of the eroded storm
water channel flooring in Kearsley Creek in the area adjacent to Scholey and
Vernon Street, Cessnock. The floor of this storm water channel had suffered
serious damage over a period of years due to acid attack from mine dumps in
the draining areas. The cost of this particular section (one kilometer in
length) had been $210,000.00. H.D.W.B. approved the construction of an
additional concrete transition section in Black Creek .Cessnock in February 1978.
This was an endeavour to remove some flood hazards occuring at that time. A
further 1550 metres of open earth channel was made by the enlargement of Black Creek
downstream from the junction with the Bellbird Creek, Cessnock.