Data last published 12/06/2022 02:15 PM
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
12/6/2022 Midnight 9 PM
12/7/2022 6 AM 11 PM
12/8/2022 8 AM 4 PM

Tentative St. Stephen Discharge Times

Date Start Time End Time
12/6/2022 4 AM 10 PM
12/7/2022 2 AM 12 PM
12/8/2022 2 AM Midnight

USGS Data Links

Lake Elevations

Date Lake Marion Elevation Lake Moultrie Elevation Rule Curve Elevation
12/5/2022 74.32 73.62 74.14
12/4/2022 74.23 73.61 74.16
12/3/2022 74.16 73.54 74.17
12/2/2022 74.1 73.62 74.18
12/1/2022 74.12 73.66 74.19
11/30/2022 74.21 73.84 74.19
11/29/2022 74.08 73.87 74.2

Daily Lake Discharges

Date Jefferies Hydro St Stephen Hydro Spillway Hydro Spilling
12/8/2022 4500 9714.29 650 0
12/7/2022 4500 9714.29 650 0
12/6/2022 4500 9714.29 650 0
12/5/2022 7735.54 8586.5 607.41 0
12/4/2022 4208.71 8561.38 602.52 0
12/3/2022 5819.91 9276.17 612.47 0
12/2/2022 6654.4 8715.78 597.22 0
7-Day Average 6104.64 8784.96 604.9 0

Upstream River Flows

Date Broad River @ Alston Saluda River @ River Banks Zoo Congaree Inflow @ Columbia Wateree Inflow @ Camden
12/5/2022 4845.1 4908.54 9211.56 7821.67
12/4/2022 4763.02 4535.52 10921.56 9993.12
12/3/2022 7248.33 4564.79 13148.96 10171.35
12/2/2022 10062.92 5046.56 17247.92 12112.08
12/1/2022 12374.48 5401.88 15080.94 11309.69
11/30/2022 5803.44 4967.6 10420.52 6103.44
11/29/2022 5548.12 4502.81 10499.48 6724.79
7-Day Average 7235.06 4846.81 12361.56 9176.59

Estimated Lake Marion Inflows

Date Santee Cooper
12/6/2022 24741.46
12/7/2022 21807.6
12/8/2022 18543.77
12/9/2022 16779.58
12/10/2022 15774.49