COMPLIANCE INFO_PR0440063_1990-2019

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CENTRAL VALLNISREGIONAL WATER QUALITY NTROL BOARD INSPECTION REPORT DATE: 29 March 2007 FACILITY: Musco Family Olive Company DISCHARGER: Musco Family Olive Company LOCATION & COUNTY: Tracy, San Joaquin County CONTACT(S): Ben Hall/Kelly INSPECTION DATE: 26 March 2007 INSPECTED BY: Todd Del Frate ACCOMPANIED BY: SUMMARY: Met with Ben Hall and Kelly to conduct a site inspection of the Musco facility. The inspection was a follow up to the last inspection conducted in fall of 2007. During that inspection severe runoff. erosion, and sedimentation issues were observed at the upland spray fields. Staff strongly expressed concern of lack of progress with installing storm water controls prior to the wet season. Field 55 east and west, and Field 95 were major concerns. Lower Fields 18 north was also noted as having severe runoff and erosion issues. Staff observed the lower fields (18 north, Evap South) from the road and conditions of the fields appeared to be unchanged from the previous inspection. The lower fields have less topographic relief than the uplands area, but concentrated flow can be easily observed throughout the field. Nypa plantings in field 18 north covers approximately 25%to 30% of the field. Evap south was recently re-planted with Nypa and no crop coverage exists (Figure 1). Erosion controls have not been installed on the lower fields. The Title 27 Class II surface impoundments appeared to be in good operational shape with no observed tears in the liners or weather damage. Musco has diverted more water to the surface impoundments and Pond A and Pond B appeared to be near capacity (Figure 2). Tailwater boxes installed to collect runoff from the spray application fields were fixed and appeared maintained. All boxes observed had been pumped of liquid and were free of silt with the exception of the box installed in Field 55 west (Figure 3). According to the Discharger. continued maintenance of ta']water boxes are required. All fixed boxes were fitted with either electric, gasoline or diesel powered pumps as shown in Figure I and Figure 4. Staff inspected the 84 million gallon reservoir. All aerators were operating. Discharger indicated dissolved oxygen measurements were recorded at approximately 4.0 mg/L, above the required 2.0 mg/L. Staff noticed a slight odor. Figure 5 shows the Reservoir and aerators. Staff inspected Field 55 in the uplands area. Field 55 west continued to show severe erosion and channeling caused by concentrated flow. Because of the low rainfall this year, the observed severe erosion is a result of current irrigation practices rather then storm precipitation. Straw waddles were not Approved: