This document provides information on several reservoirs in Montana: - East Fork of Rock Creek Dam and Painted Rocks Dam are currently at 71% and 100% capacity respectively, providing irrigation water to acres of land. - Fred Burr Dam and Nevada Creek Dam are at lower storage levels, providing irrigation water to fewer acres than normal. - The majority of state water project reservoirs started the water year with average or below average levels due to dry conditions the previous summer, though spring rains have increased the water supply outlook somewhat.

1. Missoula, MTMissoula, MT
May 28, 2013May 28, 2013

2. Larry A. SchockLarry A. Schock
Missoula Regional OfficeMissoula Regional Office
Water Resources DivisionWater Resources Division

5. East Fork of Rock Creek DamEast Fork of Rock Creek Dam
Fred Burr DamFred Burr Dam
Nevada Creek DamNevada Creek Dam
Painted Rocks DamPainted Rocks Dam

7. Total Capacity:Total Capacity: 16,040 Acre Feet (AF)16,040 Acre Feet (AF)
Location:Location: 14 miles SW of Phillipsburg Mt.14 miles SW of Phillipsburg Mt.
Operated By:Operated By: Flint Creek Water Users Assn.Flint Creek Water Users Assn.

8. Reservoir Surface Area:Reservoir Surface Area: 390 acres at full pool390 acres at full pool
Provides supplemental irrigation water to 25,000Provides supplemental irrigation water to 25,000
acres in the Flint Creek Valley.acres in the Flint Creek Valley.

9. Currently at 71% of capacity with
11,462 Acre-feet of storage

10. Currently at 71% capacity with
11,462 Acre-Feet of storage
71%

11. Operated By:Operated By: Fred Burr Water Users Assn.Fred Burr Water Users Assn.
Total Capacity:Total Capacity: 516 AF516 AF
Location:Location: 10 miles NW of Hamilton Mt.10 miles NW of Hamilton Mt.

12. Provides supplemental irrigation water for 860 acres.Provides supplemental irrigation water for 860 acres.
Reservoir Surface Area:Reservoir Surface Area: 28 acres at full pool28 acres at full pool

14. Operated By:Operated By: Nevada Creek Water UsersNevada Creek Water Users
Assn.Assn.
Total Capacity: 11,207 AFTotal Capacity: 11,207 AF
Location:Location: 12 miles SE of Helmville, Mt.12 miles SE of Helmville, Mt.

15. Provides full service irrigation for 1000 acres andProvides full service irrigation for 1000 acres and
supplemental irrigation for 10,000 acres nearsupplemental irrigation for 10,000 acres near
Helmville and Ovando Mt.Helmville and Ovando Mt.
Reservoir Surface Area:Reservoir Surface Area: 368 acres at full pool368 acres at full pool

16. Currently at 75% capacity with
8368 Acre-Feet of storage

18. Operated By:Operated By: Painted Rocks Water Users AssnPainted Rocks Water Users Assn
Total Capacity:Total Capacity: 32,656 AF32,656 AF
Location:Location: 30 miles SW of Darby Mt.30 miles SW of Darby Mt.

19. Provides 10,000 AF of supplemental irrigation water forProvides 10,000 AF of supplemental irrigation water for
over 25,000 acres in the Bitterroot Valley and 15,000 AFover 25,000 acres in the Bitterroot Valley and 15,000 AF
of water for instream flows in the Bitterroot River forof water for instream flows in the Bitterroot River for
fisheries habitat enhancement.fisheries habitat enhancement.
Reservoir Surface Area:Reservoir Surface Area: 655 acres at full pool655 acres at full pool

20. 100% of capacity, spilling
with 32,656 Acre-feet of
storage

21. The majority of SWP reservoirs started WaterThe majority of SWP reservoirs started Water
Year 2013 with average or below averageYear 2013 with average or below average
reservoir contents.reservoir contents.
State Water Project (SWP) reservoir contentsState Water Project (SWP) reservoir contents
based on storage reported at end of May.based on storage reported at end of May.
Due to the hot dry weather at the end of lastDue to the hot dry weather at the end of last
summer most SWP reservoirs had lower thansummer most SWP reservoirs had lower than
normal winter carryover storage.normal winter carryover storage.

22. Most of the SWP reservoirs are expected to fill.Most of the SWP reservoirs are expected to fill.
East Fork of Rock Creek, Martinsdale andEast Fork of Rock Creek, Martinsdale and
Yellowwater may not fill.Yellowwater may not fill.
Currently 14 of 18 SWP reservoirs have lowerCurrently 14 of 18 SWP reservoirs have lower
storage levels than this time last year.storage levels than this time last year.
Late spring rains and a cooler weather haveLate spring rains and a cooler weather have
slowed snow melt in most areas, increased theslowed snow melt in most areas, increased the
soil moisture content, and slightly increased thesoil moisture content, and slightly increased the
water supply outlook.water supply outlook.