The tables below list data available for samples of fissure water collected fromÝ the three shafts at Evander mine and the overlying SASOL mine.Ý The analyses are ordered from right to left according to the salinity.Ý The salinity is highly variableÝand rangingÝ from 0.1 to 1.0 wt%.Ý 

The data include field measurements of pH, pe, dissolved O₂, temperature, conductivity, and water and gas flow rates. The number of microbial cells, as detected by flow cytometry (detection limit <5 x 10³ cells/ml), are reported.Ý The types of microorganisms that have been successfully cultivated in the laboratory at room temperature (viewed as contaminants with the exception of the dolomite water), 60^oC (thermophiles) and 80^oC (hyperthermophiles).Ý SRB are sulfate reducing bacteria.Ý Het. are heterotrophic (organic carbon utilizers).Ý Me are methanogens.Ý IRB are Fe(III) reducing bacteria.Ý Sox are sulfide oxidizing bacteria.Ý Thio. are thiosulfate oxidizing bacteria.Ý In the case of Evander samples, the enrichment laboratory was not operational at the time of sampling.Ý Samples for microbial enrichments will be collected in future sampling visits.Ý The TOC is total organic carbon , followed by specific carboxylic acids commonly utilized by bacteria. CO₂ represents the total inorganic carbon.ÝÝ These analyses are followed by the anions, major cations and the trace metals.Ý The last part of the table represents the calculated saturation levels, of S.I. of various minerals.Ý S.I. = 0 means the mineral is at saturation. S.I. > 0 means the mineral phase will form a precipitate.Ý S.I. < 0 means the mineral phase will dissolve.Ý 

In other mines fissure water is most readily distinguished from service water by the relative proportions of anions. Service water is low in chloride relative to bromide, high in sulfate (due to sulfide oxidation) and high in nitrate (due to explosives).Ý EvanderÝ water samples do not contain any nitrate and highly variable concentrations of sulfate.ÝThey are largelyÝ comprised of Na, Ca and Cl.Ý The water contains surprisingly high levels of ammonia.ÝThe microbial concentrations are fairly significant given the high levels of ammonia and enrichments performed under variable ammonia concentrations are merited.Ý The source of the ammonia needs to be resolved.ÝEvander 914 is the lowest salinity sample and is fairly alkaline compared to other Evander samples.Ý In many respects, it resemble the water found in the Karroo coal formation at SASOL.Ý Fissure water is typically oversaturated with respect to calcite and this is consistent with observations of calcite filling water-bearing fractures.ÝFissure water typically contains no dissolved O₂. 

Evander 818 has been sampled at three different times and exhibits a steady increase in salinity .Ý EV818 has also yielded room temperature, thermophilic and hyperthermophilic microorganisms.Ý