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Pond Volume = 2.23 acre feet = 2.75 x 106 liters <br />pH 7•- pH 6 = 0.1 grams hydrogen ion/liter <br />Mass hydrogen = 2.75 x 105 grams <br />50 equivalents CaC03 to neutralize 1 equivalent hydrogen ion <br />100 lb lime = 45454 grams x 2 equivalents/100 grams CaC03 <br />2.75 x 105 grams hydrogen/9.1 x 104 equivalents = 3 bags lime <br />4. Proportionate amounts based on the actual volume of water to be <br />treated in the pond and the difference between a pH of 7 and the <br />actual pH measurement will be used in determining the quantities of <br />lime to be added. <br />• 5. A second measurement.of pH will be made following pond treatment. If <br />additional treatment is required it will be performed. Water will be <br />released from the pond only when it is within NPDES limitations. <br />An evaluation of the feasibility and effectiveness of the manual pond <br />water treatment method described above will be conducted through April <br />30, 1987 and a discussion on the feasibility of meeting pond effluent <br />immitations will be provided to the Division on May 31, 1987 prior to <br />continuance of the program. Should the results indicate the manual <br />treatment method to not be feasible, a proposed alternate plan using <br />an automatic treatment method will be provided to the Division for <br />review and approval. <br />• <br />Revised 9/12/86 <br />4 <br />