EA 2001 Water Year AOP

• File Number: 8461.300
• Description: EAC/RCC
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 1/3/2001
• Author: EA Manager, EAC
• Title: EA 2001 Water Year AOP
• Water Supply Pro - Doc Type: Operating Principles/Plan

Table 1. Release Guidelines for the Environmental Account for the Water Year 2001 (Tke rwo pulse flow eriods are shaded)
Period Recovery Flow Principal Affected Resources 2001 Water Comments
Tar ets cfs at G.I. Year Priori
Oct 1- Nov 15 2,400 whooping crane, waterfowl Low Although flows are predicted to be at or below
1,800 flow targets, EA carry-over plus 10 percent of
1,300 the SNI will be conserved for higher priority
uses later in the water year.
Nov 16 - Dec 31 1,000 fish community, bald eagle Low Projected flows indicate that average or dry
1,000 targets will be met during this period.
600
Jan 1- Jan 31 1,000 (wet) fish community, bald eagle Low Projected flows indicate dry targets will be
1,000 (normal) met.
600 (dry)
Feb 1- Feb 15 1,800 sandhill crane, waterfowl, fish community, Low Projected flows indicate dry targets will be
1,800 bald eagle met.
1,200
Feb 16 - March 15 3,350 Sustaining processes of the river and riparian High Projections show shortages to average and dry
3,350 wetland systems such as ice-scouring for flow targets during this period in 2001. In
2,250 channel maintenance•, sediment supply; addirion, no beneficial pulse flows were
sandbaz fomiation; nutrient cycling; and experienced during the 2000 water yeaz. If
groundwater recharge to stimiilate biological South Platte River flows are conducive to
activity in wet meadows. augnentation, lugh priority will be given to
using the EA to enhance desired river
processes as descn'bed in the Principal Affected
Resources section. High priority will be given
to pulse flow augmentation anytune between
this period and the May/June pulse flow period
if South Platte flows become favorable.
March 16-March 22 1,800 sandhill crane, waterfowl, fish community, Low Projected flows indicate average targets will be
1,800 bald eagle met. See comments for Feb./Mar Period.
1,200
Water Year 2001 EA AOP 12 January 3, 2001