Data last published 05/25/2022 10:40 AM
Note: Congaree and Wateree river inflows takes 3-5 days to reach Lake Marion.

The projected times of operation below are subject to change depending upon electrical system and lake management requirements.

Tentative Jefferies Hydro Discharge Times

Date Start Time End Time
5/25/2022 1 PM 9 PM
5/26/2022 12 PM 8 PM
5/27/2022 10 AM 9 PM

Tentative St. Stephen Discharge Times

Date Start Time End Time
5/25/2022 Not scheduled to run Not scheduled to run
5/26/2022 Not scheduled to run Not scheduled to run
5/27/2022 Not scheduled to run Not scheduled to run

USGS Data Links

Lake Elevations

Date Lake Marion Elevation Lake Moultrie Elevation Rule Curve Elevation
5/24/2022 75.25 75.09 75.68
5/23/2022 75.27 75.04 75.67
5/22/2022 75.28 75.07 75.67
5/21/2022 75.26 75.05 75.67
5/20/2022 75.23 75 75.67
5/19/2022 75.30 75.11 75.67
5/18/2022 75.34 75.13 75.67

Daily Lake Discharges

Date Jefferies Hydro St Stephen Hydro Spillway Hydro Spilling
5/27/2022 4500 0 650 0
5/26/2022 4500 0 650 0
5/25/2022 4500 0 650 0
5/24/2022 6732.35 0 608.61 0
5/23/2022 6828.30 0 607.59 0
5/22/2022 3854.21 0 612.33 0
5/21/2022 4201.63 0 609.30 0
7-Day Average 5404.12 0 609.46 0

Upstream River Flows

Date Broad River @ Alston Saluda River @ River Banks Zoo Congaree Inflow @ Columbia Wateree Inflow @ Camden
5/24/2022 5570.94 1357.08 4785.10 4478.96
5/23/2022 2263.65 1104.29 3289.17 2268.12
5/22/2022 2204.48 874.56 3377.19 2437.92
5/21/2022 2325.73 926.68 3562.92 2799.79
5/20/2022 2404.48 850 3209.38 2556.98
5/19/2022 2830.73 865.64 4513.75 2059.79
5/18/2022 3161.98 870.58 3302.29 2071.67
7-Day Average 2966 978.4 3719.97 2667.6

Estimated Lake Marion Inflows

Date Santee Cooper
5/25/2022 6105.92
5/26/2022 6464.31
5/27/2022 8256.87
5/28/2022 9558.65
5/29/2022 9511.70