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© LUHDORFF & SCALMANINI GROUNDWATER RESOURCES <br /> CONSULT 1 N G ENGINEERS HYDROLOGY"DEVELOPMENT MANAGEMEN1 <br /> r <br /> " September 26.1.013 <br /> LSCE Project Files 06-1-064 &09-1-095 <br /> r <br /> Mr. Rodney Estrada, lead Senior REHS Ms. Kerry Sullivan, Director <br /> San Joaquin County San Joaquin County <br /> Environmental Health Department Community Development Department <br /> 600 East Main Street 1810 East Hazelton Avenue <br /> Stockton.CA 95202 Stockton.CA 95205 <br /> SUBJECT: 2012 ANNUAL GROUNDWATER MONITORING REPORT <br /> r TEICHERT AGGREGATES AND GRANITE CONSTRUCTION CO. <br /> QUARRY EXCAVATION OPERATIONS, VERNALIS AREA, SAN JOAQUIN COUNTY, CA <br /> r <br /> Dear Ms. Sullivan, Dear Mr. Estrada: <br /> On behalf of Teichert Aggregates and Granite Construction Co., Luhdorff& Scalmanini Consulting Engineers(LSCE) <br /> submit the enclosed report entitled"2012 Annual Groundwater Monitoring Report—Teichert Aggregates and Granite <br /> Construction Co. Quarry Excavation Operations. Vernalis Area, San Joaquin County,CA". <br /> This Groundwater Monitoring Report was prepared to satisfy both Teichert's(QX-91-5)and Granite's(QX-94-1) <br /> permit requirements related to groundwater monitoring and reporting activities, and also Granite's approved <br /> groundwater monitoring plan("Groundwater Monitoring Plan for Granite's Vernalis Plant, San Joaquin County,CA", <br /> LSCE, February 9, 2009). The first combined annual groundwater monitoring report of this kind was prepared for <br /> calendar year 2009. <br /> The monitoring data record documents very stable groundwater quality conditions and shows no indication that mining <br /> operations have changed groundwater quality to date. <br /> ` Sincerely. <br /> LUHDORFF AND SCALMANINI, <br /> 1 CONSULTING ENGINEERS <br /> to <br /> L Jeanette Hummel. P.G. <br /> Geologist <br /> cc: Ms. Becky Wood, Mr. Michael Smith. Mr. Paul Mercurio, and Mr.Jerry Hansen—Teichert Aggregates <br /> Mr. Aaron Vasbinder, and Mr. Jordan Main—Granite Construction Co. <br /> Mr. & Mrs.Glade Faulkner <br /> Mr. & Mrs.Greg Smith <br /> r Mrs. Koster <br /> r <br /> 500 FIRST STREET - WOODLAND. CA - 95695-4026 - 530.66 1.01 09 • FAX 530-661.6806 <br /> r <br />