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GENERAL30527
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Last modified
8/24/2016 7:48:03 PM
Creation date
11/23/2007 6:44:45 AM
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Template:
DRMS Permit Index
Permit No
M1976020
IBM Index Class Name
General Documents
Doc Date
8/14/1996
Doc Name
MEMO-MEETING WITH GEOF SCHLITTGEN AND RICH MAYO ON 8-13-96
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The recovery program should initially: <br />1. Establish a C4 stream type, matching the dimension Md psttems summarized abo~~e. <br />?. Require constn:ction of a floodplain within the existing over-widened river and a <br />meandering, lower µidth,'depth ratio stream channel. <br />3. Development of a masse; pl~i for this reach of the Animas River which would <br />establish the "rules of the river" for all operators to follow. <br />4, Initiate a collection fer restoration for a minimum F 50'ton of product hauled, in this <br />manner, the public puffin; demands on the gravel should have to pay a fair share to <br />"put something back into the river." <br />5. initiate a study to determine the sustainable, availaole, annual and harvestable supply' <br />oF6revel as produced by thii na;uarally vzn• high sediment supply watershed. This <br />should help develop a more fair manner of proportionate harvesting along the river <br />corridor. <br />6. Develop a new manner of gravel extraction by settin3 up a series of ponds in the <br />newly created floodplain The use of a Vortex hedload sampler or similar design <br />which thin extracts a portion of the hedload from [he bo[torn nfthe stream annua':ly <br />without diversion orover-widening dill replenish the ha-vested gravel in tFie ponds. <br />There should be no minimum allowable depth of extraction, in the Jloodplcrln pond in <br />contrast to the deep extraction ir. the main river ehz.~nel which has caused great <br />damage (See attached sketch). <br />7. Whatever method is designed and selected, the dimension. pattern end pro::ile of the <br />river, the floodplain and the other aRribtttes associated with preciously me.ition stable <br />C4 stream types should bz re-established. <br />PerntiU should he issued only to thole operators who are eiillinE to find a better way and <br />can demonstrate that gravel extraction can have liale effect on the rivet To de this, new nays <br />have to be implemented. Far the past ta•o years, I Face been conducting a g; avel research <br />demonstration (under permit by the Corps of Engineers) which uses s vortex tube (20 inch <br />diameter) which routes a portion of the bedload from the boaom of the river during flo«'s of I/,+ <br />bankfull and higher stage into a floods lain pond. 'this concept is that over time. the material <br />
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