Caltha LLP Project Summary

Project: Consulting Support To Address Stormwater Benchmark Exceedance

Key Elements: Stormwater monitoring; MPCA stormwater permit compliance; Industrial storm water BMPs

Overview:  This manufacturer retained Caltha to provide technical support and guidance in addressing exceedance of MPCA industrial storm water benchmark concentrations. Monitoring data collected in Permit Cycle Year 2 exceeded limits for total suspended solids (TSS), zinc, iron and aluminum. Caltha staff reviewed past data, monitoring procedures and conducted a site inspection to determine root causes for the exceedance as part of a formal corrective action process. Based on recommendations, the facility began implementation of revised stormwater controls and began preparations for subsequent year 4 monitoring activities.

Click here for more Caltha project examples related to permitting, including air, wastewater, waste, tanks. Click here to review more project examples for facilities located in Minnesota and Minnesota regulatory updates.


SWPPP and stormwater pollution prevention plans

Caltha LLP | Your Pollution Prevention Partner

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