The ultimate effectiveness validation for cumulative urban water quality improvement actions is the detection of definitive decreasing trends in stormwater pollutant loads. 2NDNATURE applies our decade of experience designing, implementing and evaluating water quality research to guide the program development of a clearly articulated vision that can be consistently implemented over the next 20 years, address key management questions, and remain flexible during funding fluctuations. The inherent natural variability and sampling error in stormwater quality monitoring require the incorporation of data collection and reporting components that increase our confidence that detections in pollutant load reductions are a result of effective management actions and not merely due to natural or sampling variations.
In support of the Tahoe TMDL, the Regional Stormwater Monitoring Program (RSWMP) is being designed to implement the necessary long-term stormwater quality monitoring to track status and trends. 2NDNATURE is leading the technical team charged with designing and implementing a long-term regional stormwater monitoring program for the Tahoe Basin. RSWMP design incorporates a comprehensive synthesis and evaluation of past stormwater monitoring efforts, including data collection, management and reporting techniques, into a feasible, cost-effective and sustainable long term monitoring program. From these lessons learned, 2NDNATURE led the development of the data analysis and data reporting formats to guide data collection and focus annual reporting to address the critical question of program effectiveness to reduce pollutant loads. These formats and protocols, funded in part by a USFS SNPLMA research grant, include climate adjustments, statistical analyses, and detailed metric summaries.
Annual Status Reporting by SITE Trend Reporting by SITE Status Reporting by REGION