Data last published 11/29/2021 10:22 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
11/29/2021 6 AM Midnight
11/30/2021 Midnight 10 AM
12/1/2021 2 AM 10 AM

Tentative St. Stephen Discharge Times

Date Start Time End Time
11/29/2021 Not scheduled to run Not scheduled to run
11/30/2021 Not scheduled to run Not scheduled to run
12/1/2021 Not scheduled to run Not scheduled to run

USGS Data Links

Lake Elevations

Date Lake Marion Elevation Lake Moultrie Elevation Rule Curve Elevation
11/28/2021 74.12 74.03 74.21
11/27/2021 74.12 74 74.23
11/26/2021 74.16 73.98 74.26
11/25/2021 74.21 74.07 74.29
11/24/2021 74.20 74.02 74.31
11/23/2021 74.22 74.09 74.34
11/22/2021 74.27 74.16 74.36

Daily Lake Discharges

Date Jefferies Hydro St Stephen Hydro Spillway Hydro Spilling
12/1/2021 4500 0 650 0
11/30/2021 4500 0 650 0
11/29/2021 4500 0 650 0
11/28/2021 4026.04 0 637.87 0
11/27/2021 4830 0 639.02 0
11/26/2021 8703.46 0 635.07 0
11/25/2021 5566.85 0 642.77 0
7-Day Average 5781.59 0 638.68 0

Upstream River Flows

Date Broad River @ Alston Saluda River @ River Banks Zoo Congaree Inflow @ Columbia Wateree Inflow @ Camden
11/28/2021 2180.31 1141.35 3714.69 1332.50
11/27/2021 2179.69 1143.96 3781.25 1369.48
11/26/2021 2376.77 1150.73 3937.92 1502.62
11/25/2021 2297.19 1140.73 3839.06 1576.56
11/24/2021 2090.62 2525.52 4709.27 1994.27
11/23/2021 1570.94 4461.88 6264.38 2633.44
11/22/2021 1674.58 2184.38 3869.06 2073.01
7-Day Average 2052.87 1964.08 4302.23 1783.13

Estimated Lake Marion Inflows

Date Santee Cooper
11/29/2021 5520.19
11/30/2021 5241.75
12/1/2021 5214.42
12/2/2021 5406.16
12/3/2021 5432.25