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' •11 <br /> Table 6. Ratio of T. ferrooxidans to Heterotrophic <br /> Bacteria in Soil-Refuse Interface Samples <br /> Year <br /> 1985 1986 1987 <br /> Treated Area <br /> 0.05 0.35 0.22 <br /> Control''I Untreated)- Area -- - ` 7.00 1.01' '1014.00 <br /> Today;- the' -site supports healthy vegetation, while the control <br /> area has rapidly - degraded. The treated area has denser vegetative <br /> cover' and, generates much less acid than the untreated area. The <br /> treated area supports volunteer. legume growth which results in. <br /> -increased N2 fixation and a higher heterotroph population. . r <br /> What__seems_-_to-__be more important than specific population numbers <br /> (Figure 4) , however, is the ratio ' between T. ferrooxidans and the <br /> heterotrophic bacteria (Table 6) . While in the treated soil this <br /> ratio remained-- about ` the same, -the control area showed a significant <br /> increase - in this ratio. Figure 5 - presents '-these results in an <br /> alternative format. <br /> .Seep Water Quality <br /> Perforated pipe drains -were installed at the Route 43 site on both <br /> the treated ana_control'sides.___In May of 1987, water samples collected <br /> -from these- drains-were analyzed and the data is presented in Figure 6. <br /> .After three- years of reclamation, drastic differences in water quality <br /> :are noted. <br /> The-control--area seep-produced -acid water_ of 'a quality l;ty similar to <br /> naturally�accurring seeps-on the site prior, to reclamation. Water from <br /> the seep located in the area treated with ProMac Systems products has <br /> low metals and low acid content and does not destroy-vegetation. <br /> Refuse.=_moisture.. data ' from the ; Route ._43 site also indicate the <br /> performance r of ProMac Systems products (Figure 7). ''These data show the <br /> chemical parameters that reveal the effectiveness of the bactericide <br /> treatment. -The_- treated area--- data -continue to show consistently <br /> Improving conditions and stability, while data from the control region <br /> show high acidity and solubilized metals and deteriorating conditions. <br /> Interesting to note, aluminum content almost perfectly follows the <br /> acidity curve, indicating the direct relationship between acid and <br /> aluminum solubilization. Aluminum is a prime phytotoxin. <br />