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Sushant Mehan

Assistant Professor and SDSU Extension Water Resource Engineer Specialist

605-688-5487

Raven Precision Ag Building 202
Ag & Biosystems Engineering-Box 2100
Brookings, SD 57007

Sushant supports the citizens of South Dakota in his role as an Assistant Professor and SDSU Extension Water Resource Engineer Specialist at the South Dakota State University campus in Brookings.

State & Regional Offices

SDSU Campus
Also by Sushant Mehan
Fog rising over a wooded peninsula at Lake Herman.

Seasonal Water Quality in Upper Midwest Shallow Prairie Lakes: What happens, why it matters, and what tools scientists use to monitor changes in lake water quality

Shallow prairie lakes across the Upper Midwest follow a predictable seasonal cycle driven by weather, nutrients, algae, and natural biological processes. Understanding this cycle helps lake users know what to expect, stay safe, and appreciate how lakes function.

a field in the fall with a small ditch with water flowing through it

25th annual Tri-State Drainage Research Forum brings latest research to Owatonna, Minnesota

August 24, 2026

South Dakota State University Extension invites the public to the 25th annual Tri-State Drainage Research Forum this fall in Minnesota.

South Dakota State University on-site wean-to-finish barn.

Heavy Metals in Swine Manure

This fact sheet explains what heavy metals are, how they enter swine manure, how they behave in soil, and what practical steps producers can take to reduce long-term risks.