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Musco Family Olive Company - 5 - 12 December 2006 Upland S rin The upland spring is located at the western boundary of the Musco's property. It is the headwaters of the natural drainage swale that flows through the northern section of the facility and is characterized by native grasses and plants. Due to the construction of the Reservoir, the upland springs.has been diverted into a "bypass channel" located north of the Reservoir. The "bypass channel" prevents storm water from entering the Reservoir. After the bypass passes the Reservoir it discharges into the natural drainage swale at the base of the Reservoir dam. The spring and storm water then follows the natural drainage swale to the eastern boundary of the Musco property where it discharges to a concrete culvert beneath Interstate 505. Monitoring and Reporting Program (MRP) No. R5-2002-0148 required the upland spring to be sampled for water quality. Water quality of the upland spring is summarized in Table 4. Table 4 U land Spring A alytical Results Date TDS Na CI HCO3 SO4 (mg/L) (mg/L) (m /L) (mq/L} (mg/L) 06-23-04 1,500 350 210 NA 360 03-16-06 1,410 292 156 598 337 03-31-06 11850 281 138 549 323 04-13-06 1,130 244 34 561 154 04-25-06 1,400 321 184 793 357 05-11-06 1,280 314 168 610 297 05-22-06 1,010 275 147 509 303 03-23-06 NA 350 210 NA NA Average 1,368 303 156 603 304 Title 27 Surface Impoundments The Discharger directs an average of 37,000 gallons per day (gpd) (approximately 13 million gallons per year) of process wastewater into two Class II surface impoundments referred to as Ponds A and B waste management units (Units). The capacity of Pond A is 38.5-acre-feet. The capacity of Pond B is 32.3 acre-feet. The three streams directed to the surface impoundments are the flotation brine, the softener ion-exchange regeneration stream, and the boiler blow down. Spent lye that can no longer be recycled and excess brine from spillage from conveyor belts is also directed via floor drains and sumps to the surface impoundments. Table 5 provides a summary of the average analytical results for samples collected from the surface impoundments. Samples from the surface impoundments were analyzed for EC, pH, total dissolved solids (TDS), chloride, sulfate, nitrate, chemical oxygen demand (COD), total hardness, calcium, magnesium, potassium, and total alkalinity. Background concentration limits (CLs) as Water Quality Protection Standards (WQPSs) for constituents of concern (CDCs) have not been established because of the lack of good background sampling points. In the absence of WQPSs based on background or baseline concentrations, the table provides water quality goals for comparison.