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J <br />• • <br />2. Coal geochemistry - needed. <br />3. Roof and floor geochemistry - needed. Please note that two parameters <br />were inadvertently left of the table: neutralization capacity and percent <br />acidity. <br />4. Pump tests - needed <br />5. Lithologic logs - needed <br />6. Geophysical logs - needed <br />7. Two monitoring wells, preceded by generic completion diagrams submittals <br />- Needed. See comments on Item 1. <br />8. The data submitted on December 7, 1992, begins to respond to this item <br />However, there are several problems which should be rectified in future <br />sampling. <br />a. Where is the water level and data from the field parameters? <br />b. Please add the following parameters to your list: conductivity at <br />25°C, unionized ammonia, zinc, nitrate-nitrite, orthophosphate as <br />P, total iron and total manganese; <br />c. Inadequate detection limit was observed for barium. More refined <br />analyses are required to achieve a detection limit of 0.5 mg/1 ; <br />d. The December 7, 1992 cover page suggests that the Coal Gulch <br />Peerless Well was not pumped. Standard sampling practice requires <br />sampling following the removal of three casing volumes of water. <br />This means that the water level and the bottom of the well should <br />be measured & the difference calculated. The volume of the water <br />in the well should be calculated by the following equation: <br />Difference x 1^1 (Well Diameter (in) x 7.48 gallons <br />(feet) 24 ft3 <br />Three times that volume of water must be removed prior to <br />acquisition of the water sample. All water well samples should be <br />collected in this fashion. <br />Please specify how the sample was treated following acquisition. <br />Indicate when the sample was filtered, what preservatives were used <br />and whether the samples were refrigerated. <br />5616E/scq <br />