Data last published 01/31/2023 09:36 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
1/31/2023 Midnight Midnight
2/1/2023 10 AM Midnight
2/2/2023 4 AM 2 PM

Tentative St. Stephen Discharge Times

Date Start Time End Time
1/31/2023 Midnight Midnight
2/1/2023 Midnight Midnight
2/2/2023 Midnight Midnight

USGS Data Links

Lake Elevations

Date Lake Marion Elevation Lake Moultrie Elevation Rule Curve Elevation
1/30/2023 74.88 72.82 73.78
1/29/2023 74.62 72.76 73.67
1/28/2023 74.4 72.79 73.56
1/27/2023 74.37 72.89 73.44
1/26/2023 74.36 73.21 73.32
1/25/2023 74.32 73.23 73.2
1/24/2023 74.19 73.21 73.09

Daily Lake Discharges

Date Jefferies Hydro St Stephen Hydro Spillway Hydro Spilling
2/2/2023 4500 23040 650 0
2/1/2023 4500 23040 650 0
1/31/2023 4500 23040 650 0
1/30/2023 3740.44 22359.76 631.83 0
1/29/2023 4140.78 22507.45 627.82 0
1/28/2023 6133.14 20101.07 262.66 507.62
1/27/2023 7379.18 22346.82 566.71 0
7-Day Average 5348.38 21828.78 522.26 126.9

Upstream River Flows

Date Broad River @ Alston Saluda River @ River Banks Zoo Congaree Inflow @ Columbia Wateree Inflow @ Camden
1/30/2023 7031.15 1582.5 9461.04 10331.88
1/29/2023 12755.1 1517.4 15100.42 15544.79
1/28/2023 14413.23 3077.5 23583.02 15440.62
1/27/2023 23892.71 4350.62 31695.83 16018.75
1/26/2023 23058.54 2622.29 26042.71 16056.25
1/25/2023 12724.06 2025.1 13201.04 13059.38
1/24/2023 11859.58 1582.5 18618.65 12314.58
7-Day Average 15104.91 2393.99 19671.82 14109.46

Estimated Lake Marion Inflows

Date Santee Cooper
1/31/2023 39802.35
2/1/2023 32471.21
2/2/2023 23099.74
2/3/2023 15710.1
2/4/2023 12020.71