Нл, Water-conservation and Hawke's Bay Artesian Systems. 137 
is found from 40 ft. to 50 ft. below sea-level at Pakipaki, somewhat deeper 
at Pukahu, and 25 ft. or more still deeper at Longlands. Hastings has an 
excellent well that is 230 ft. below sea-level, and in Napier there is a well 
that is 397 ft. below sea-level, the water from which flows 26 ft. above the 
water-bearing bed is not possible in certain places over the plain. 
Napier a trial bore went down some years ago to the depth of 743 ft., and 
the river-alluvial had gone. So also at Greenmeadows the late Mr. H. 
Tiffen put down a trial bore to a depth of 600 ft., but after the first 
100ft. the pipe went into the blue fossiliferous clays that are exposed in 
the district underlying the limestones, and there was no water-res t. But 
when more consideration is given to the conservation of water the number 
of water-bearing beds will be known throughout the plain area, and it will be 
possible to discover any alterations that are taking place in the closing or 
blocking of beds, and it may possibly come about that the actual sources 
of supply will be found, which at present are mere matters of surmise. 
causes leading to their exhaustion, which has occurred in various districts. 
The peer quotation is taken from the United States Geological 
8 -8 and irrigation papers :— 
u^ epu jb in pe that sare is a limit to the amount of water 
that can be withdrawn from an artesian basin. There is no such thing 
supply in this connection. The amount of water 
available is limited, on the one hand, by the amount of rainfall upon 
the catchment area and the facility with which the rainfall can obtain 
e other hand, by the capacity 
ries. : 
There i and then an apparent clogging of the water-bearing 
rock medie ана neighbourhood of the well. ` Whether the clogging 
