The WI DNR has changed legislation regarding phosphorus levels in municipal
wastewater. The change, lowering standards from 4.8 mg/L to 0.075mg/L, created
noncompliance issues for the Browntown, WI municipal wastewater treatment facility. The
system operator, Rob, has emphasized that any changes to the system must comply with the
city’s public budget of $270,000 (for all divisions). Rob made a previous attempt to lower the
effluent phosphorus level to 1.0 mg/L, an intermediate level set by the W...