Sector-Specific Benchmark Values and Effluent Limitations: Sector - X: Discharges may be subject to requirements for more than one sector or subsector.
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Subsector Parameter Benchmark Values
X1 - Printing and Publishing Solids, Total Suspended (TSS) 100 mg/L 2
Silver, Total (as Ag) 0.0041 mg/L 1

1The benchmark values of some metals are influenced by water hardness. For these parameters, the Permittee may determine the hardness of the stormwater discharges to identify the applicable ‘hardness range’ for determining their benchmark value. See Table 4 of Appendix B for hardness dependent benchmark values in accordance with Minn. R. 7050.0222 and Minn. R. 7052.0100.
2If the Permittee is required to comply with Appendix A, part F.1, the benchmark value for Solids, Total Suspended (TSS) is 65 mg/L, instead of 100 mg/L.

This page was last edited on 17 August 2013, at 13:52.