The Lake Tahoe TMDL Program is designed to reverse lake clarity loss by reducing fine sediment particle (FSP) and nutrient loading to Lake Tahoe. Stormwater discharges from the urbanized areas of the Tahoe Basin are believed to be the primary contributors of these loads. As such, an important element of the TMDL is to track and report progress towards meeting load reduction targets from urban stormwater. The Regional Stormwater Monitoring Program (RSWMP), managed by the Tahoe Resource Conservation District (Tahoe RCD), provides long-term monitoring and reporting of urban stormwater quality and quantity at several representative locations around the Lake. The large quantity of data produced by this monitoring program, which began in 2013, is stored and summarized by the RSWMP Data Management System (DMS). This presentation will summarize the monitoring approaches, data collection challenges, data management techniques, and status and trends from this 10-year monitoring program. The presentation will conclude with a discussion of the complex relationship between stormwater quality and lake clarity and how future improvements may be impacted by a changing climate.