Salt pollution from road de-icers and building material weathering change the major ion composition and increase salinity of freshwaters. These alterations are pronounced in urban watersheds due to drainage of impervious surfaces. Wetlands in urban areas receive pulses of high salt concentrations and may retain dissolved salts, reaching toxic levels for aquatic biota and possibly altering biogeochemical processes. To characterize freshwater salinization in an urban wetland, we monitored water quality in a mitigation wetland complex and an adjacent first order stream at the Cleveland Metroparks Watershed Stewardship Center in Parma, Ohio. We analyzed surface water samples for major ion concentrations (n=359) and collected high temporal resolution (5 min) specific conductance data from July, 2018 to November, 2019. Specific conductance remained elevated above typical freshwater levels throughout most of the year. Observations of high specific conductance (>2,000 µS/cm) corresponded with periods of snowmelt and during the summer and early fall low water periods, suggesting evaporative concentration of salt ions. Declines in specific conductance along hydrologic flow paths within the wetland complex sub-sites suggest that salts are removed by the system, either through soil or groundwater retention.