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Ryan Thacher, PhD, PE, Page 2 <br />Rincon Consultants, Inc. <br />Environmental Scientists · Planners · Engineers <br />data review, a review of the SWPPP and SPCC for each facility, and a site visit, our team was able to lead the DOJ <br />towards realistic and implementable solutions to improve storm water quality, and favorable agreements with <br />opposing parties. <br />Project Manager and Technical Analyst, Oil Refinery, Martinez, California <br />Evaluated the concentrations of metals and total suspended solids in storm water runoff from an industrial facility <br />adjacent to the San Francisco Bay, and developed an approach to estimate near-field dilution following discharge to <br />the Bay. Stormwater management practices were reviewed with respect to the facility’s SWPPP and SPCC for <br />consistency. <br />Project Manager and Technical Reviewer, Oil Storage Facility, Santa Fe Springs, California <br />Conducted a five-year SPCC review for an oil storage facility in southern California. Updated the existing SPCC to <br />reflect changes in facility operation, and reviewed emergency response actions following a spill event for consistency <br />with the SPCC. <br />Project Manager and Technical Consultant, City of Antioch, City of Stockton, City of Brentwood, California <br />Provided technical support for multiple municipalities in the hearings regarding the petition filed by the California <br />Department of Water Resources and U.S. Bureau of Reclamation requesting changes in water rights for the California <br />WaterFix Project. Investigated the effects of proposed project operations on water quality throughout the <br />Sacramento-San Joaquin River Delta (Delta) using the DSM2 model. Evaluated the impact of predicted water quality <br />changes on drinking water diversions, treatment operations, and costs. <br />Project Manager and Technical Lead, San Francisco Bay Area <br />Modeled near-field and far-field plume characteristics of effluent discharged via diffusers from several industrial <br />facilities in the San Francisco Bay. Assisted in the development of a method to define a mixing zone for each diffuser <br />that could be applied uniformly regardless of ambient water flow and tidal conditions. <br />Project Manager and Technical Lead, Southern California <br />Developed and executed a soil sampling program at an amusement park in California to confirm soil quality prior to <br />planned construction activities. Conducted employee interviews and a historic document review to identify areas of <br />potential contamination from historic site activities. Collected soil samples at a range of depths at locations where <br />planned construction activities overlapped with areas of potential concern. <br />Project Manager and Technical Consultant, Needles, California <br />Supported an investigation of the formation of a small delta in the Colorado River allegedly caused by land grading <br />activities. Calculated stormwater runoff and sediment transport quantities from the watershed and from graded land <br />and determined that grading had a less than significant influence on delta development. <br />Project Manager and Technical Consultant, Kailua, Hawaii <br />Assessed sediment and nutrient loading to Kaelepulu Pond in Kailua, Hawaii, from grading activities at an adjacent <br />construction site. Soil and nutrient loss from the site was estimated using the universal soil loss equation as well as by <br />the use of field data collected during storm events. Contributions of sediment and nutrients to Kaelepulu Pond from <br />the construction site were evaluated with regard to sediment and nutrient loading from the greater watershed area. A <br />comprehensive evaluation of site BMPs was conducted, which included comparison of the BMP plan to what was <br />implemented in the field, and an assessment of BMP successes and failures during substantial rainfall events. This case <br />settled at mediation July, 20, 2015. <br />Project Manager and Technical Consultant, Secondary Lead Smelter, Los Angeles, California <br />Evaluated residential soil metals data in accordance with DTSC guidance to determine the area of impact of an <br />industrial facility. Reviewed and summarized literature and data regarding background soil metals concentrations in <br />metropolitan areas across California. Attended settlement discussions with DTSC on behalf of the facility. <br />EXHIBIT 1