Record Details
page A-6
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page A-6 Final Environmental Assessment for the Diamond Fork System Proposed Action Modifications, page A-6 |
| Coverage | Electronic reproduction; |
| Format | A-6 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; the contractor will be required to restore disturbed surfaces to preconstruction conditions and avoid and minimize erosion district temporary slope breakers will be used to reduce runoff velocity and divert waste from the construction right of way they will be constructed with materials such as soil silt fence weed free staked hay or straw bales or sandbags sandbars sand bags using the written recommendations of local land managing agency and soil conservation authorities district sediment barriers will be installed to keep wetlands and water bodies free of possible sedimentation resulting from construction the barriers will be constructed of materials such as silt fence weed free staked hay or straw bales or sandbags sandbars sand bags they will be installed as necessary at the base of slopes adjacent to road crossings and at construction locations near water bodies or wetlands where siltation could occur district in areas subject to erosion an erosion control blanket or matting will be placed on slopes for stabilization to prevent wind and water erosion and help establish vegetation A site analysis will be conducted to determine the appropriate type of mulch and other erosion control material for each area district existing topsoil will be carefully removed and stored during trenching drenching tren ching operations and replaced after trenches are backfilled where drainage occurs gaps will be left between topsoil piles to prevent increased water saturation topsoil stripping activities will cease during excessively wet weather and topsoil will not be stockpiled stockpiler stock piled for longer than 2 years additional topsoil will be added if needed to allow vegetation growth district waste material tunnel muck from tunneling operations will be disposed in areas near tunnel portals and graded and shaped to match the natural topography to the extent feasible spoil will be re vegetated district final cleanup of an area including replacement of topsoil final grading and installation of permanent erosion control structures will be completed within 10 days after backfilling if unavoidable delays occur final cleanup will be completed as soon as possible andalways and always before the end of the next recommended seeding season district after construction soil will be replaced and worked with a disc chisel plow or other appropriate implement as practical to reduce compaction and leave soil in proper revegetation condition topsoil will be replaced with a minimum of handling district permanent trench breakers will be built to stop the flow of subsurface water along trenches when necessary an engineer or similarly qualified professional will determine the need for and spacing of trench breakers topsoil will not be used in trench breakers district seedbeds will be prepared in disturbed areas to a depth of 3 to 4 inches using appropriate equipment if hydroseeding hydro seeding is used the seedbed will be scarifier scarified scari fied to facilitate lodging and germination of seed seeding will be done in consultation with the forest service district to maximize the success of revegetation planting will occur during appropriate climatic periods in properly prepared soil planting and fertilizer application techniques will be chosen for specific conditions at each site and the needs of selected plant species temporary erosion control measures will be used at any site where seeding has been delayed district where possible natural seed mixes of local origin will be used along with mulching C and no or low amounts of fertilizer the criteria for selecting species to plant in disturbed areas will include hardiness compatibility with wildlife capacity to self perpetuate and rooting roofing characteristics that help stabilize soil district diamond fork proposed action modifications EA A 6 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/4668 |
