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Building 6-inch ponding dikes
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Building 6-inch ponding dikes
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Building 6-inch ponding dikes
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water ponded in 6-inch ponding dikes
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water in 3-inch ponding dikes
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water in 3-inch ponding dikes
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water in 3-inch ponding dikes
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water in 3-inch ponding dikes
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6-inch ponding dikes 28 mm