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WASTE DISCHARGE REQUIREMENTS ORDER R5-2013-0028 -26- DELICATO VINEYARDS, INC. DELICATO FAMILY VINEYARDS SAN JOAQUIN COUNTY 85. With respect to TDS, and possibly sodium and chloride, an unacceptable degree of groundwater degradation has occurred. Therefore this Order does not authorize any continued degradation beyond that which exists today for those constituents. The Groundwater Limitations are effective immediately and allow no degradation beyond existing groundwater quality in any compliance monitoring well and this Order requires intrawell analysis of compliance well groundwater monitoring data to determine compliance with the Groundwater Limitations. If the required improvements do not result in significantly improved groundwater quality within five years of adoption of this Order, the Provisions require that the Discharger implement additional treatment or control as necessary to bring the discharge into compliance with the Basin Plan water quality objectives. This Order also requires that the Discharger evaluate existing and potential future local agricultural uses of groundwater to support determination of site-specific water quality objectives for TDS and sodium that are protective of all beneficial uses. 86. This Order also requires implementation of upgrades and any additional measures that will be required to comply with the Groundwater Limitations of this Order, and which are expected to result in significant improvements in the shallow groundwater quality beneath the site. This Order imposes effluent and mass loading rate limitations and contains a time schedule for the implementation of additional treatment or control to ensure that the highest water quality consistent with the maximum benefit to the people of the State will be achieved while minimizing any degradation that may occur pending completion of the required tasks. Following completion of the time schedule, this Order will be reopened if necessary to reconsider effluent limitations and other requirements to comply with Resolution 68-16. Based on the existing record, the discharge authorized by this Order is consistent with the antidegradation provisions of Resolution 68-16. Other Regulatory Considerations 87. Based on the threat and complexity of the discharge, the facility is determined to be classified as 2B as defined below: a. Category 2 threat to water quality: "Those discharges of waste that could impair the designated beneficial uses of the receiving water, cause short-term violations of water quality objectives, cause secondary drinking water standards to be violated, or cause a nuisance." b. Category B complexity, defined as: "Any discharger not included [as Category A] that has physical, chemical, or biological treatment systems (except for septic systems with subsurface disposal) or any Class 2 or Class 3 waste management units." 88. Title 27 of the California Code of Regulations (hereafter Title 27) contains regulatory requirements for the treatment, storage, processing, and disposal of solid waste. However, Title 27 exempts certain activities from its provisions. Discharges regulated by this Order are exempt from Title 27 pursuant to