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WASTE DISCHARGE REQUIREMENTS ORDER R5-2013-0028 -2- DELICATO VINEYARDS, INC. DELICATO FAMILY VINEYARDS SAN JOAQUIN COUNTY into approximately 23 acres of uncropped LAAs. Wastewater is applied to the LAAs by flood irrigation and is then passively treated by the soil and limited vegetative growth. 6. Facility expansion plans include constructing two 0.25 MG lined aeration ponds, increasing the volume of wastewater discharge, increasing the size of LAAs to include approximately 130 acres of cropped land, and converting two unlined ponds into temporary storage for supplemental irrigation water. Therefore, Order 96-077 is rescinded and replaced by this Order. Enforcement History 7. On 15 September 2003, Board staff issued a Notice of Violation (NOV) to the Discharger for violation of the Groundwater Limitations contained in WDRs Order 96-077 because groundwater monitoring data showed that shallow groundwater quality had been degraded with salinity constituents. The NOV required submittal of a Groundwater Degradation Evaluation Report to evaluate the extent to which wastewater discharge was degrading underlying groundwater. 8. On 29 December 2003, the Discharger submitted a report titled Report: Groundwater Degradation Evaluation Delicato Vineyards. The report concluded that wastewater application practices were contributing to the degradation of groundwater quality in the vicinity of the LAAs. The report also stated that the Discharger was assessing its process chemical usage and attempting to reduce the salinity of the discharge. 9. Cleanup and Abatement Order R5-2004-0705 (CAO) was issued on 27 April 2004. The CAO required submittal of a Wastewater Characterization and Wastewater Treatment Evaluation Report, a Wastewater System Improvement Plan and Final System Design, and quarterly progress reports describing work accomplished to comply with the Order. 10. A Wastewater Characterization and Treatment Evaluation Report that summarized wastewater characteristics and a proposed compliance plan were submitted on 1 December 2005. In accordance with the CAO, the Discharger submitted a RWD on 28 April 2006, and began providing quarterly progress reports detailing facility improvements and implementation of salinity reduction efforts. 11. The Discharger met with Board staff in August 2008 to discuss expanding the LAAs. The Discharger was asked to install monitoring wells in the proposed LAAs to identify background groundwater conditions. A Monitoring Well Installation Workplan was submitted on 11 April 2008, and three monitoring wells were installed in August 2008.