MPCA Releases Revised Soil Reference Values (SRVs)

Jake Newhall, Senior Project Manager, WSB

In early April, the Minnesota Pollution Control Agency (MPCA) released revised SRVs for contaminated sediment. These revised values slightly relax regulations placed on sediment disposal.  The graphic below compares the new regulations with the old regulations.

The biggest change is that the B[a]P equivalent for industrial SRV threshold changes from three to 23. This means soil with SRVs between two and 23 can be reused on industrial sites instead of disposed in landfills. Prior to this change, soil with SRVs greater than three were disposed of in landfills.

SRV levels indicate the concentration of polycyclic aromatic hydrocarbons (PAHs) that have accumulated in some stormwater pond sediments around the state. PAHs break down over time and can be transported via stormwater runoff.

The adjustment in regulations creates cost-saving opportunities when managing stormwater maintenance projects.

Jake has more than 15 years of engineering experience designing and managing many types of water resources projects, including modeling, planning, design, maintenance programs, and construction. Jake has worked with various municipalities, counties and state agencies to solve challenging water quality and water quantity problems.

jnewhall@wsbeng.com | 763.231.4861

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