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Figure 3.1 - 2 year 24 hour Isopluvial map
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Figure 3.2 - 10 year 24 hour Isopluvial map
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Figure 3.3- 100 year 24 hour Isopluvial map
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For Engineering Standards printed version (3-hole punched), call Service First 425-452-6800
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For Engineering Standard Details on a CD, call 425-452-6857