Click here to read an explanation of 'Bio-remediation' as it relates to the Lower Lakes. 

18th of May 2009, Currency Creek

(click on any photo to enlarge)

A home test kit shown here provides an indication,

while an official test on the same day in the same area produced a Ph level of 2.75

Acid-bearing, pyrite-rich acid soil on the surface of lower Currency Creek

Crushed limestone introduced as a measure to contain acid sulphate soils. These mounds of limestone rely on freshwater flows through Currency Creek for distribution.

Heavy vehicular intrusion has exposed dangerous acid sulphate conditions.

Left undisturbed, acid sulphate soils may be harmless but when disturbed, these soils become exposed to oxygen, from which sulphuric acid and heavy metals are produced.