Data last published 08/10/2022 01:11 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
8/10/2022 12 PM 9 PM
8/11/2022 2 PM 10 PM
8/12/2022 11 AM 8 PM

Tentative St. Stephen Discharge Times

Date Start Time End Time
8/10/2022 Not scheduled to run Not scheduled to run
8/11/2022 Not scheduled to run Not scheduled to run
8/12/2022 Not scheduled to run Not scheduled to run

USGS Data Links

Lake Elevations

Date Lake Marion Elevation Lake Moultrie Elevation Rule Curve Elevation
8/9/2022 74.87 74.71 75.64
8/8/2022 74.91 74.72 75.64
8/7/2022 74.93 74.80 75.64
8/6/2022 74.93 74.76 75.65
8/5/2022 74.93 74.75 75.65
8/4/2022 74.95 74.76 75.65
8/3/2022 74.97 74.77 75.65

Daily Lake Discharges

Date Jefferies Hydro St Stephen Hydro Spillway Hydro Spilling
8/12/2022 4500 0 650 0
8/11/2022 4500 0 650 0
8/10/2022 4500 0 650 0
8/9/2022 4346.52 0 614.19 0
8/8/2022 4794.58 0 624.45 0
8/7/2022 4163.42 80.66 606.98 0
8/6/2022 4328.78 0 603.03 0
7-Day Average 4408.32 20.16 612.16 0

Upstream River Flows

Date Broad River @ Alston Saluda River @ River Banks Zoo Congaree Inflow @ Columbia Wateree Inflow @ Camden
8/9/2022 3565.83 732.08 4010.10 1517.40
8/8/2022 2875 1212.61 3572.19 1393.25
8/7/2022 2009.58 858.80 3034.90 1434.89
8/6/2022 1461.04 994.71 3057.29 1436.51
8/5/2022 1959.79 716.29 2939.27 1435.07
8/4/2022 1951.25 711.97 3303.02 1488.14
8/3/2022 2589.48 711.59 3503.23 1646.75
7-Day Average 2344.57 848.29 3345.71 1478.86

Estimated Lake Marion Inflows

Date Santee Cooper
8/10/2022 4624.64
8/11/2022 4904.25
8/12/2022 5120.63
8/13/2022 4928.61
8/14/2022 4979.12