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REVISED <br /> MONITORING ND REPORTING PROGRAM NO. R5-2003.50 -3- <br /> IMPERIAL HOLLY CORPORATION <br /> HOLLY SUGAR CORPORATION dba <br /> SPRECKELS SUGAR COMPANY <br /> SPRECKELS SUGAR COMPANY TRACY FACILITY <br /> SAN JOAQUIN COUNTY <br /> WATER QUALITY PROTECTION STANDARDS <br /> At this site,water quality protection standards have been previously calculated from <br /> constituent concentrations in background wells. The water quality protection standards <br /> for the Pond Area and the Deeper Water Zone are shown in Table 3 below: <br /> TABLE 3. - BACKGROUND WATER QUALITY <br /> Parameter Pond Area Deeper Water <br /> Zone <br /> TDS (mg/1) 3665 2900 <br /> TFDS (mg/1) 3043 2600 <br /> TOC (mg/1) 6.5 8.0 <br /> Bicarbonate (mg/1) 1470 1000 <br /> Hardness (mg/1) 1860 880 <br /> Nitrogen(mg/1) 40 5.2 <br /> Calcium(mg/1) 300 160 <br /> Chloride (mg/1) 955 990 <br /> Sodium(mg/1) 618 760 <br /> Sulfate (mg/1) 919 290 <br /> Potassium (mg/1) 5.2 4.6 <br /> L <br /> n (mg/l) 4.1 2.2 <br /> nesium (mg/1) 288 120 <br /> Monitoring Points <br /> Groundwater: <br /> The current upgradient groundwater Monitoring Points are monitoring wells BW-4 for the Deep <br /> Water Bearing Zone and WP-1, -2, and—6; and BW-2 for the Shallow Zone Pond Area. <br /> The Deep Water Bearing Zone groundwater Monitoring Points shall be WP-7 and BW-3. The <br /> Shallow Zone groundwater Monitoring Points for the Pond Area shall be WP-3, -4, -5, and—8; <br /> and BW-1. Groundwater Monitoring Points shall also include any monitoring wells installed <br /> after the adoption of these WDRs. Groundwater monitor well locations are shown on <br /> Attachment B. <br />