Checking water quality at water-supply dam for city of Auckland, NZ

Checking water quality at a water-supply dam for the city of Auckla...

Detailed Description

The reservoir lies on an active basaltic volcanic field. Water-quality monitoring programs can identify and track water quality changes associated with ash fall that may be hazardous, and determine when public notices may need to be issued regarding potable water.


Image Dimensions: 845 x 594