R2000-230 AUTHORIZING AGREEMENT - Laserfiche WebLink

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Table 1. Monitoring Stations and Sampling Frequency in the Lake Decatur Watershed. Drainage Station area Sampling number Location (sq mi) Frequency* 101 Long/Big Creek at Twin Bridge Road 46.2 W, P 102 Friends Creek at Rte 48 near Argenta 111.9 W, P 104 Camp Creek near White Heath 47.2 W, P 105 Sangamon River near Mahomet 368.2 W, B, P 106 Big Ditch near Fisher 38.2 W, P 111 Sangamon River at Monticello 543.4 W, B, P *W-weekly sampling visits and collect only nitrate samples B—biweekly sampling and collect Arsenic, Boron, Sulfur,NVOC, and pH P—biweekly sampling for pH 3. Process and analyze annual data collection. The one year of data will be processed for water discharge (flow), nitrate concentrations, and nitrate loading for the six stations in the monitoring network. The whole dataset will be appended and analyzed to determine trends in flow and nitrates over time. 4. Public education. Assist the City of Decatur in public education by presenting the results of the data collection efforts at 'public and community meetings throughout the watershed. This will be performed by either principal investigator at City of Decatur specified organized meetings or conferences, which is approximated to be 3-5 times during the year. 5. Proposal deveiopment. Cooperate with the City of Decatur in developing proposals to state and federal agencies. The ISWS will provide reports in support of proposais the City may pursue to fund watershed management practices in the Lake Decatur watershed. 6. Prepare a final repor� The final report will include summaries of the data collection for this year and comparative analysis of the data. from other years. The report shail contain discussions of the results of precipitation records, stream flow, nitrate concentrations, and nitrate loading for the six stations listed in table 1 during the study period. The report will also include an appendix containing the results of the arsenic, boron, sulfur, NVOC, and pH data collection and analysis. DELIVERA.BLES The main product that will be delivered to the city will be the final report that summarizes the results of the study. A draft of this report (10 copies) will be delivered to the City of Decatur for their review 16 weeks after the end of the one-year data collection period, with the final report(approximately 50 copies) to be delivered 8 weeks later. 4