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procedure). Analyses of the solids appear to be for total metals, and analyses <br />from the SPLP tests appear to be dissolved metals. However, without keying the <br />analytical methods noted in the charts with published protocols, this is not <br />certain. The operator should clarify this uncertainty. <br />Notes: <br />Organics <br />1. A number of organics analyses are reported for organics that are not <br />regulated. The operator should explain the significance of these analyses <br />and why they were measured. <br />2. Not all of the regulated organic materials were analyzed. The operator <br />should explain why, and describe how the analyses presented represent <br />the full suite of regulated organic compounds. <br />3. Organic compounds that appeared at measurable levels in the dry <br />samples were generally the same as those in the leachates. <br />4. None of the organic parameters reported above regulated levels, even at <br />the most restrictive levels. <br />5. It is not clear from the analyses and narratives whether organic chemicals <br />that might appear from inefficient burning of tires would be adequately <br />monitored using the available data. (See recommendations at end of this <br />narrative.) <br />Metals and other parameters <br />6. Metals analyses are reported for several metals that are not regulated. As <br />these do not constitute a whole rock analysis, it is not evident why these <br />were measured. The operator might explain the significance of these <br />analyses and why they were measured. <br />7. Analytical detection limits for Mn was lower than the regulated value for <br />the secondary drinking water standard (0.05 mg/L). As other metals <br />appeared in the analyses that might indicate an upset in groundwater <br />conditions, the Division need not require additional testing for Mn. <br />8. A suite of metals and sulfate reported at concentrations above detection <br />limits in both the solids and the leachates analyses. Generally, these <br />were higher in the coal/tire ash than in the coal ash. It is interpreted that <br />these metals are present in the metal components of tires, perhaps in <br />steel belts, other metal reinforcements, or perhaps additives in the rubber. <br />Regardless of source, I would anticipate that these would appear in the <br />ash and in groundwater. Thus, a representative suite of these particular <br />mefa/s that report above regulated levels should be added to the existing <br />groundwater monitoring parameters list, if tires are incorporated into the <br />fuel. if tire fuel is anticipated, it would be useful to establish background <br />levels for these parameters. <br />9. All samples reported pH above the accepted range for waters. Provided <br />this parameter already is monitored, it would not need to be added to the <br />parameters list. <br />2 <br />