Record Details
page 4-56
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 4-56 Diamond Fork System Final Supplement to the Final Environmental Impact Statement, page 4-56 |
| Coverage | Electronic reproduction; |
| Format | 4-56 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; comment letter no 13 RESPONSE 13.57 1357 this section of the FSFEIS FS FEIS has been revised to include more detailed information that was documented in the trihey report trihey whey & associates 1997 conceptual restoration plan and baseline assessment lower diamond fork final report 11 prepared on behalf of US forest service uinta national forest spanish fork ranger district spanish fork UT COMMENT 13.58 1358 34631.1 346311 construction impacts diamond fork siphon unnamed drainage and diamond fork creek crossings this section states that the diamond fork siphon will parallel diamond fork creek for 2300 feet and would be constructed outside the creek and riparian area As narrow as this portion of the canyon is it seems urd urf unlikely likely that this could be accomplished without impacts to riparian vegetation especially during construction it would be extremely difficult or impossible to avoid riparian impacts while paralleling diamond fork creek for this distance in this particular portion of the canyon without moving onto the adjacent side hills table 3.43 343 34 343 3 shows no acres permanently disturbed and 0.61 061 ogi acres temporarily disturbed by the diamond fork tunnel alternative these numbers seem low forest hydrologist bob gecy estimates that riparian impacts due to construction of the tunnel would be about 6.0 60 60 go acres we recommend this be carefully reevaluated this same section goes on to discuss the 0.2 02 02 acres of riparian habitat that would be temporarily disturbed during construction of the siphon creek crossing the DEIS states that the area would be re vegetated with riparian species would the siphon be buried deeply enough that CUWCD would allow planting of trees within this disturbed area presuming that is the type of vegetation presently on the site if the existing community cannot be replaced within the project corridor this 0.2 02 02 acres of disturbance should be tallied as permanent disturbance RESPONSE 13.58 1358 the procedures and impacts have been revisedfrom revised prom from the SFN SFNDEIS DEIS dels please see chapter 1 section 1323 132.3 and chapter 3 section 34641.3 346413 346413 in the FSFEIS FS FEIS COMMENT 13.59 1359 34631.2 346312 346312 operation impacts diamond fork creek below three forks this section suggests that riparian establishment can be accomplished by gazing grazing management or by fencing of the riparian corridor when in fact the baseline hydrologic regime has virtually excluded cottonwood establishment since 1915 the last paragraph discusses the possibility of adjusting flows to promote natural establishment of native species and reduce the establishment of tamarisk through adaptive management the proposed flow regime as displayed on table 19 1 9 still has july flows which are higher than may flows in most years this still could have an adverse affect on cottonwood seedling establishment RESPONSE 13.59 1359 the monthly distribution offlows of flows under interim operation of the proposed action is significantly differentfrom different from the distribution offlows of flows under the SFN project table 19 1 9 in the SFNDEIS has been replaced with table 18 1 8 in the FSFEIS FS FEIS the tite primary change is the result of going from an irrigation demand pattern patteri 4 with high flows in the summertime and relatively low flows in the winter and spring to a pattern which meets the need to have exchangeable water in utah lake exchangeable water is primarily needed in utah lake during the winter and spring runoffperiods runoff periods on the provo river when water is being stored in jordanelle Jor danelle reservoir the CUP cupflows flows from Straw strawberry beny reservoir can be conveyed within the diamond fork pipeline thus the range of monthly distribution offlows of flows on diamond fork creek under the proposed action shows a peak as a result of natural spring runoff diamond fork system FSFEIS FS FEIS 456 4 56 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/9312 |
