Draft Baseline Report - Pallid Sturgeon Section

• Description: Prepared for Platte River Cooperative Agreement ‎(aka Platte River Recovery Implementation Program [PRRIP])‎
• State: CO
• State: WY
• State: NE
• Basin: South Platte
• Water Division: 1
• Date: 1/1/2002
• Title: Draft Baseline Report, Pallid Sturgeon Section
• Water Supply Pro - Doc Type: Report/Study

Lower Platte River Water Dissolved Oxygen (mg/L)
Date Mean
11 May 1999
9.1
8 June 1999
7.2
23 June 1999
9.0
20 July 1999
6.8
3 August 1999
7.9
14 May 1998
9.4
11 June 1998
7.3
23 June 1998
7.4
7 July 1998
6.9
3 August 1998
9.5
Conductivity
In 2000 the mean conductivity at Leshara was 334 µS /cm with a minimum of 147 and a
maximum of 596 µS /cm; and at Louisville the mean conductivity was 427 µS /cm with a
minimum of 202 and a maximum of 1366 µS /cm (Peters et al. 2001).
Peters et al. (1989) described a persistent difference in conductivity between north and
south banks of the lower Platte River for up to 72 km below the confluence of the Platte
and the Loup River Power Canal near Columbus (in Hopfar 1997).
Salinity
In 2000 the mean salinity at Leshara was 0.2 ppt with a minimum of 0.1 and a maximum
of 0.3 ppt; and at Louisville the mean salinity was 0.3 ppt with a minimum of 0.2 and a
maximum of 0.8 ppt (Peters et al. 2001).
Suspended Solids
In 2000 the mean total suspended solids at Leshara was 187 mg/L with a minimum of 8
and a maximum of 1512 mg/L; and at Louisville the mean total suspended solids was 266
mg/L with a minimum of 21 and a maximum of 2696 mg/L (Peters et al. 2001).
Draft Baseline Report — Pallid Sturgeon Section 15