Monitoring Objectives and Data Evaluation Clause Samples

Monitoring Objectives and Data Evaluation. ‌ The water quality concerns for the ▇▇▇▇▇▇▇▇▇ Reservoir reallocation focus on the potential change to water quality conditions (i.e., nutrients and chlorophyll a) based on the expansion of the hypolimnion and inundation of shoreline areas following the increased storage capacity (ERO 2013). There is uncertainty whether the expansion of the hypolimnion will increase the areal coverage of anaerobic sediment conditions and result in increased internal phosphorus loading that may impinge on the Total Maximum Annual Load (TMAL) for the Reservoir. Furthermore, the inundated shoreline vegetation may also increase phosphorus loading to the Reservoir. The following core objectives have provided the basis for the adaptive management plan and the CRP monitoring program (ERO 2013). 1. Internal loading from “new” anoxic sediments attributed to reallocation pool level increases will not cause water quality standards for chlorophyll a and total phosphorus or the total phosphorus TMAL to be exceeded. 2. Internal loading from “newly” inundated vegetation attributed to reallocation pool level increases will not cause water quality standards for chlorophyll a and total phosphorus or the total phosphorus TMAL to be exceeded. 3. Expansion of hypoxic conditions and potential release of reduced contaminants from anaerobic sediments will not cause other water quality standards (i.e., other than chlorophyll a and total phosphorus) to be exceeded. The CRMC and CWA are coordinating their respective objectives to maximize efficiency and minimize costs. The increased spatial coverage of Reservoir monitoring locations and the increased sampling frequency will provide a more complete data set to address the following water quality questions for the Reservoir as well as the future water quality modeling effort of the CRP: 1. Does ▇▇▇▇▇▇▇▇▇ Reservoir meet the growing season total phosphorus and chlorophyll a standard annually? 2. Are total phosphorus loads in compliance with the TMAL? 3. Are the requirements of the CRP Record of Decision on water quality monitoring and analyses satisfied? Water quality data are used to characterize the trophic state of the Reservoir, evaluate trends in the watershed and to assess compliance with basic/site-specific water quality standards and the phosphorus TMAL identified in the control regulation. The in-Reservoir total phosphorus data are used by the Colorado Water Quality Control Division to determine compliance with the total phosphorus standard of ...