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Table 7: Water Quality Constituents Identified for Near-Field and Far-Field Analyses(Continued) Table 8: Sources of Surface Water Quality Data used in Near-Field and Far-Field Analyses <br /> (Continued) <br /> Constituent Monitoring Data Source(s) Selected for Analysis <br /> Location Data Source and Monitoring Program Monitoring Location(s) Monitoring Date Range(s) <br /> DDT 13267 monitoring data No,constituent non- SJR at Mossdale Bridge, <br /> detect in effluent Contra Costa Pumping Plant <br /> No,constituent non DWR-MWQI:California Department of #1('),Old River near Byron, Oct.1989-Sept.1994(crit) <br /> Diazinon --- 13267 monitoring data detect in effluent Water Resource Municipal Water Quality Delta Pumping Plant Oct.2000-Sept.2004(dry) <br /> Investigations Program Headworks,Delta Mendota <br /> Dioxin --- No data available No Canal Intake at Lindemann <br /> Furan Compounds --- No data available No Road <br /> Group A Pesticides 13267 monitoring data No,constituent non- DO Study-DWR:California Department <br /> p 9 detect in effluent of Water Resources data collected as Stockton Ship Channel Oct.2000-Oct.2001(dry) <br /> part of San Joaquin River Dissolved Turning Basin <br /> PCBs --- 13267 monitoring data No,constituent non- Oxygen Study <br /> detect in effluent <br /> (1)Constituent is considered a non-conservative parameter and inappropriate for the calculation of blended effluent-river DO Study-Stockton:City of Stockton Stockton Ship Channel <br /> concentrations in the near-field. data collected as part of San Joaquin Turning Basin, Oct.2000—Sept.2001(dry) <br /> (2)Regression model for change in Stockton Ship Channel DO is extended version of model utilized in Draft EIR for Manteca River Dissolved Oxygen Study SJR at RWCF-R8(2) <br /> WQCF Phase III/IV Expansion(EDAW,2000) <br /> DO Study-UOP:University of the Pacific Stockton Ship Channel <br /> data collected as part of San Joaquin Turning Basin June 2001-Oct.2001(dry) <br /> Data Sources River Dissolved Oxygen Study <br /> Stockton RWCF self-monitoring:City <br /> The near-and far-field analyses conducted for the current water quality impacts assessment of Stockton Regional Wastewater Control SJR at RWCF-R8(2) Jan.2004-Sept.2004(dry) <br /> require a great deal of high quality data collected by the WQCF and various monitoring Facility NPDES self-monitoring program <br /> programs that collect ambient surface water quality data in the Delta. The various monitoring "crit"-Data were collected during a critical water year;°dry--Data were collected during a dry/below normal water year; <br /> programs and monitoring locations providing the surface water quality data that were used in the "wet"-Data were collected during a wet water year. <br /> (1) Costanear-and far-field analyses,as well as the time periods covered by these data are presented in (2)SJRtra at RWCFPRa sl ng a solknown ant las Sanalsoknown Joaqu nsR Contra <br /> at Navigation Lightt81Intake at Rock Slough. <br /> Table 8. <br /> Table 8: Sources of Surface Water Quality Data used in Near-Field and Far-Field Analyses Data Quality Screening <br /> Data Source and Monitoring Program Monitoring Location(s) Monitoring Date Range(s) Data from the water quality monitoring programs/studies shown in Table 8 were selected for the <br /> Self-monitoring data:City of Manteca Apr.2004-Sept.2004(dry) present analysis because they meet the qualitative objectives of comparability and <br /> WQCF NPDES self-monitoring program WQCF R-1 Oct.2005-June 2006(wet) representativeness. Comparability of data can be defined as the similarity of data generated by <br /> different monitoring programs. This objective is evaluated primarily by comparing the sampling <br /> 13267 monitoring data:City of Manteca methods and analytical procedures used among various monitoring programs. Comparisons of <br /> WQCF monitoring data collected WQCF R-1 Jan.2002-Jan.2003(dry) data sets collected by the above-listed monitoring programs for a certain parameter at or near a <br /> pursuant to California Water Code <br /> §12367 particular location during a specific time period reveal a considerable degree of comparability. <br /> Special studies monitoring data:City Representativeness of data can be defined as the degree to which the environmental data <br /> of Manteca WQCF monitoring data generated by a monitoring program accurately and precisely represent actual environmental <br /> collected to determine reasonable WQCF R-1 Nov.2005-July 2006(wet) conditions. This objective is addressed by the overall design of the monitoring program. <br /> potential for exceedance of dissolved Specifically,representativeness is evaluated by the selection of appropriate locations,times, <br /> metals objectives frequencies of sampling,methods,and detection limits for each environmental parameter <br /> Thermal Plan Exception Study:City of measured by a monitoring program,as well as the maintenance of the integrity of a sample after <br /> Manteca WQCF monitoring data SJR at Mossdale Bridge Apr.,Sept.,Dec.2002(dry) its collection and its overall evaluation by a rigorous QA/QC program. Finally,data were <br /> collected in support of the City's Thermal selected for near-and far-field water quality impacts assessments that possess detection limits <br /> Plan Exception Analysis <br /> that are sufficiently low to allow for comparison to relevant water quality objectives. <br /> Depending on the monitoring site under consideration,data from a particular monitoring <br /> program typically acted as the primary data source for that monitoring site. The monitoring <br /> City of Manteca Antidegradation Analysis 25 June 2007 City of Manteca Antidegradation Analysis 26 June 2007 <br />