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D~~L <br />• GCC RIO GRANDE -RED ROCK PLANT AND MINE <br />ARROYO "F" SEDIMENT AND DETENTIONPOND <br />ARROYO "F" SEDIMENT/DETENTION POND <br />Elevation Area <br />(sq. R) (acres) <br />4968 0 0.0 <br />4990 62000 1.4 <br />4992 165000 3.8 <br />4994 282500 6.5 <br />4996 460800 10.6 <br />4998 589600 13.5 <br />Tnbutary Area (worst case) <br />Undisturbed = 37.0 <br />Reclaimed (fill area) = 49.0 <br />Plant area= 77 <br /> 183.0 <br />• <br />A~age Incremental Incremental Accumulatne Vdurne Comments <br />Area -Depth Vdurne <br /> (A') (af) <br />0 0 0 0 0.0 ThaMtg reference elev. <br />31000 2 62000 62000 - 1.4 <br />113500 2 227000 289000 6.6 <br />223750 2 447500 736500 16.9 <br />371650 2 743300 1479800 34.0 <br />525200 Z 1050400 2530200 56.1 Emergenq spitMay <br />DAM NOTES <br />1 Since dam height can t>e less than 10 fee[, then non jurisdictional <br />2 Mardmum embanlmrarrt height is less than 15 feet <br />3 Temporarily store up to 35 of for 25•yr runoff and sediment <br /> Storage Capacity <br />soon <br />4998 <br />~ 4996 <br />c 4994 <br />~ 4992 <br />W <br />4990 <br />4988 <br />4966 <br />0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 <br /> Storage (acre teat) <br />5l31f2002, Delention.rds <br />