WSP06826

• File Number: 8441.600.20
• Description: Pleasant Valley Pipeline
• State: CO
• Basin: South Platte
• Date: 11/1/2000
• Author: USDOI/BOR
• Title: Pleasant Valley Pipeline Draft Environmental Assessment
• Water Supply Pro - Doc Type: Publication

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PLEASANT V ALLEY PIPELINE
ENVIRONMENTAL ASSESSMENT

TABLES

Table I. Projected raw water demand and additional supply needed for Soldier
Canyon WTP and Fort Collins WTP. ...................................................................8

Table 2. Projected use of Pleasant Valley Pipeline.............................................................8

Table 3. Summary of environmental effects by alternative. .............................................12

Table 4. Estimated change in average Poudre River flows (cfs) at stations
between the Munroe Canal and the Greeley gage in 2030. ................................21

Table 5. Vegetation types affected by the proposed Pleasant Valley Pipeline. ................24

Table 6. Wetlands and waters of the U.S. temporarily affected by pipeline

construction. ..................................................................................................... ...30

Table 7. Federally threatened, endangered and candidate species with potential to
occur within the vicinity of the proposed Pleasant Valley Pipeline in

Colorado...... ..................................................................................................... ...40
Table 8. Federally-listed species inhabiting the Platte River Valley in Nebraska
potentially affected by operation of the proposed Pleasant Valley

Pipeline. .............. ................................................................................................41
Table 9. Projected changes in point flow in the Cache La Poudre River from
diversions at the Munroe Canal due to Pleasant Valley Pipeline
operations in 2002 and 2030 (cfs).......................................................................64

Table 10. Historical and projected population for Larimer and Weld Counties...............68

FIGURES

Figure I. Proposed Pleasant Valley Project Vicinity Map. ................................................2
Figure 2. Stream Gages and Diversion Points on the Cache la Poudre River. .................18
Figure 3a.Pleasant Valley Pipeline Wetlands and Waters of the U.S. ..............................28
Figure 3b.Pleasant Valley Pipeline Wetlands and Waters of the U.S. ..............................28
Figure 4. Pleasant Valley Pipeline Alignment-Mule Deer Habital..............................32
Figure 5. Pleasant Valley Pipeline - Elk Habitat............................................................33
Figure 6. 'Pleasant Valley Pipeline - Osprey and River otter Habitat.............................34
Figure 7. Pleasant Valley Pipeline - White Pelican, Turkey, and Prairie Dog

Habi tat. .............................................................................................................. 3 5
Figure 8. Potential Preble's Meadow Jumping Mouse Habitat in the Vicinity of
the Proposed Pleasant Valley Pipeline Alignment. ...........................................47

Figure 9. Pleasant Valley Pipeline - Land Use. .............................................................57

Figure IO.Pleasant Valley Pipeline - Conservation Sites, Parks, and Natural

Areas. .... ............ ... ...... ............. .... .... .......... .......... ....... .....:.... ........ ..... .... ... ... .... ...58
Figure II.Cache la Poudre River Recreation Areas. .........................................................62

Figure 12.Cache la Poudre average daily streamflow at the Munroe Canal
diversion site for current conditions and projected future years with
operation of the PVPL. ....................... .......... .......... ....................................... ....65

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