Record Details

page 2-12

Digital Collections at BYU

Field Value
Title page 2-12 Finding of No Significant Impact Lake Fork Section 203 Alternative : Proposed Action, page 2-12
Coverage Electronic reproduction;
Format 2-12 text/PDF
Rights Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public
Language English; eng; en
Relation Central Utah Project; Western Waters Digital Library; from the lake fork river to big sand wash reservoir this includes an average of 2817 ac ft of non project water bypassed at the C canal diversion to provide in stream flows downstream to the big sand wash feeder diversion on the average a total of 53885 ac ft of water varying from 22823 ac ft 1934 to 69947 ac ft 1965 would be diverted from the lake fork river to big sand wash reservoir following the irrigation season when the enlarged reservoir starts to refill the original big sand wash reservoir space w would guld ould guid be filled as it has historically based on water right priority stream flows and the ability to divert flows through existing diversion and conveyance facilities the storage in the enlargement portion of the reservoir would be allocated first to mai mal then to the high mountain lakes replacement storage and then to project irrigation storage pools depending on various factors such as in stream flows diversion point priority etc annual releases from the enlarged big sand wash reservoir would average 52635 ac ft and would vary from 22739 ac ft to 62520 ac ft of the 52635 ac ft of water released from the enlarged reservoir 6908 ac ft would be released into the big sand wash roosevelt pipeline which includes 4963 ac ft of project water and 1945 ac ft of yellowstone river high mountain lakes water and 45727 ac ft of non project water would be released into the existing canal system the difference of 1250 ac ft 53885 to 52635 ac ft between the inflow and outflow of the enlarged big sand wash reservoir are losses to evaporation and seepage under the proposed action the enlarged big sand wash reservoir storage space allocations would include the existing 12100 ac ft of non project storage space that would continue to be used to maintain 1200 ac ft for the existing conservation and dead pool and the existing 10900 ac ft irrigation pool the 12000 ac ft of storage space allocated to the united states would yield 4963 ac ft of project water to supply 2000 ac ft to roosevelt city for mai mal purposes 1000 ac ft for other future mai mal needs in the project area 1963 ac ft for project irrigation purposes and 6500 ac ft of storage space would be reserved for high mountain lakes replacement storage of non project water the project water supply of 4963 ac ft would be diverted and conveyed through the big sand wash feeder pipeline to the enlarged reservoir where it would be stored and then delivered via the big sand wash roosevelt pipeline to roosevelt city and other project water users see section 222.3 2223 2223 2221.3 22213 22213 construction requirements construction activities would be localized and occur primarily in and near the reservoir pool potential short and longterm long term impacts from dam and reservoir construction would be avoided or reduced by following standard construction and operating requirements outlined in appendix A standard construction and operating requirements the construction schedule is shown in figure 2.23 223 22 223 3 borrois borroio borrozv material areas approximately 975000 cubic yards of earth materials would be excavated for processing and sorting three borrow areas totaling 62 acres have been identified including 32 a acres c res outside the enlarged reservoir pool area map 2.22 222 22 222 2 shows the general location of the proposed borrow areas after borrow materials have been removed the borrow areas would be re sloped to facilitate good drainage and erosion control borrow materials not used would be re graded within the borrow areas for borrow areas outside the enlarged reservoir pool area site restoration would include grading and scarifying scarify ing the soil surface for seedbed preparation and 212 2 12
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/12234

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