Monitoring Surface Water. Compliance with the surface-water standards in Table 1 will be measured at the Points of Compliance (POCs) downstream of the terminal ponds and consider groundwater in alluvium. Points of Evaluation (POEs) and additional performance monitoring locations serve to monitor the quality of surface water in the Central OU. The data evaluation methods described in the attached flowcharts will be used to evaluate sampling data collected at these locations. POCs, POEs and performance monitoring locations are shown in Figure 1; the monitoring location identification, description and sampling criteria are identified in Table 2. • Points of Compliance (POCs): Located in Woman and Walnut Creeks. These locations are used to demonstrate compliance with the surface-water standards in Table 1. POC monitoring locations WALPOC and WOMPOC require construction of a new flume in Walnut Creek and a new flume in Woman Creek at the locations shown on Figure 1 and described in Table 2. After each new flume and associated sampling equipment is installed and tested for proper operation, DOE shall notify CDPHE and EPA that construction is complete. WALPOC will replace GS08 and GS11 on the date of the DOE notification for that location. WOMPOC will replace GS31 on the date of the DOE notification for that location. WALPOC and WOMPOC will also replace GS03 and GS01 respectively upon DOE notification to EPA and CDPHE certifying that WALPOC and WOMPOC have been functioning as POCs for at least two years. EPA or CDPHE may extend the two-year period by requiring DOE to submit a modification to this attachment in accordance with RFLMA paragraph 65 if either determines that such modification is necessary to ensure protection of human health and the environment. • Points of Evaluation (POEs): Located in the Central OU upstream of the ponds and POCs. These locations are used to evaluate water-quality in comparison to the surface-water standards in Table 1. • Performance monitoring locations: Located downstream of specific remedies to determine the short and long-term effectiveness of these remedies where known contaminants may affect surface water.
Monitoring Surface Water. Compliance with the surface-water standards in Table 1 will be measured at the Points of Compliance (POCs) downstream of the terminal ponds in Woman and Walnut Creeks. If the terminal ponds are removed, new monitoring and compliance points will be designated and will consider groundwater in alluvium. Points of Evaluation (POEs) and additional performance monitoring locations serve to monitor the quality of surface water in the Central OU. The data evaluation methods described in the attached flowcharts will be used to evaluate sampling data collected at these locations. POCs, POEs and performance monitoring locations are shown in Figure 1; sampling criteria are identified in Table 2. • Points of Compliance (POCs): Located in Woman and Walnut Creeks downstream of the terminal ponds and at Indiana Street. These locations are used to demonstrate compliance with the surface-water standards in Table 1. • Points of Evaluation (POEs): Located in the Central OU upstream of the ponds and POCs. These locations are used to evaluate water-quality in comparison to the surface- water standards in Table 1. • Performance monitoring locations: Located downstream of specific remedies to determine the short and long-term effectiveness of these remedies where known contaminants may affect surface water.
Monitoring Surface Water. Compliance with the surface-water standards in Table 1 will be measured at the Points of Compliance (POCs) downstream of the terminal ponds and consider groundwater in alluvium. Points of Evaluation (POEs) and additional performance monitoring locations serve to monitor the quality of surface water in the Central OU. The data evaluation methods described in the attached flowcharts will be used to evaluate sampling data collected at these locations. POCs, POEs and performance monitoring locations are shown in Figure 1; the monitoring location identification, description and sampling criteria are identified in Table 2. Points of Compliance (POCs): Located in Woman and Walnut Creeks. These locations are used to demonstrate compliance with the surface-water standards in Table 1. WALPOC, which replaced former POCs GS08 and GS11 on September 28, 2011, and WOMPOC, which replaced former POC GS31 on September 9, 2011, will also replace GS03 and GS01 respectively upon DOE notification to EPA and CDPHE certifying that WALPOC and WOMPOC have been functioning as POCs for at least 2 years. EPA or CDPHE may extend the 2-year period by requiring DOE to submit a modification to this attachment in accordance with RFLMA paragraph 65 if either determines that such modification is necessary to ensure protection of human health and the environment. Points of Evaluation (POEs): Located in the Central OU upstream of the ponds and POCs. These locations are used to evaluate water-quality in comparison to the surface-water standards in Table 1. Performance monitoring locations: Located downstream of specific remedies to determine the short and long-term effectiveness of these remedies where known contaminants may affect surface water.
Monitoring Surface Water. Compliance with the surface-water standards in Table 1 will be measured at the Points of Compliance (POCs) and consider groundwater in alluvium. Points of Evaluation (POEs) and additional performance monitoring locations serve to monitor the quality of surface water in the Central OU. The data evaluation methods described in the attached flowcharts will be used to evaluate sampling data collected at these locations. POCs, POEs and performance monitoring locations are shown in Figure 1; the monitoring location identification, description and sampling criteria are identified in Table 2. • Points of Compliance (POCs): Located in Woman and Walnut Creeks. These locations are used to demonstrate compliance with the surface-water standards in Table 1 and are identified as WOMPOC and WALPOC, respectively. • Points of Evaluation (POEs): Located in the Central OU upstream of the POCs. These locations are used to evaluate water-quality in comparison to the surface-water standards in Table 1. • Performance monitoring locations: Located downstream of specific remedies to determine the short and long-term effectiveness of these remedies where known contaminants may affect surface water.
