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1 U <br /> --14California Regional Water Quality Control Board VVV <br /> l\- Central Valley Region <br /> v Katherine Hart, Chair (a <br /> Linda S.Adams 11020 Sun Center Drive#200, Rancho Cordova,California 95670-6114 Arnold <br /> Secretary for Phone(916)464-3291 •FAX(916)464-4645 Schwarzenegger <br /> Environmental http://w .waterboards.ca.gov/centralvalley Governor <br /> Protection <br /> 21 October 2010 <br /> RECEIVE, <br /> Ben Hall OCT 2'6 2010 <br /> Musco Family Olive Company <br /> 17950 Via Nicolo ENVIRONMENTAL HEALTH <br /> Tracy, CA 95377 DEPARTMENT <br /> REVIEW OF FIRST SEMI-ANNUAL 2010 TITLE 27 MONITORING REPORT FOR CLASS 11 <br /> SURFACE IMPOUNDMENTS, MUSCO FAMILY OLIVE COMPANY, SAN JOAQUIN <br /> COUNTY <br /> The Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff <br /> has reviewed the 1st Semi-annual 2010 Title 27 Monitoring Report submitted in accordance <br /> with Waste Discharge Requirements (WDRs) Order R5-2005-0024. In a letter dated 9 July <br /> 2010, staff issued a staff enforcement letter for inadequate reporting associated with the 2009 <br /> Annual Summary report. The report lacked many details required by the WDRs and the <br /> Standard Provisions and Reporting Requirements. The 1St Semi-annual 2010 Title 27 <br /> Monitoring Report addresses a majority of those comments and is accepted by staff for <br /> review. Staff appreciates Musco's effort to be in compliance with the WDRs and Detection <br /> Monitoring Program (DMP) for the Class II Surface Impoundments. <br /> The DMP for the Class II Surface Impoundments consists of shallow groundwater monitoring <br /> wells, MW-11 , MW-17, MW-19, MW-20, MW-21, and W-2; and intermediate groundwater <br /> monitoring wells MW-10R, MW12, MW-18, and MW-22. Currently, all shallow wells are dry <br /> and only three intermediate wells (MW-10R, MW-12, and MW-22) were measured for depth to <br /> groundwater. Groundwater samples were collected from wells MW-10R and.MW-22 only. <br /> Well MW-12 contained only one foot of groundwater and was not sampled during this event. <br /> Staff had several concerns with the reporting, which are listed below: <br /> 1. The report was not transmitted with a letter discussing whether any violations have <br /> occurred since the last monitoring event. Also, if violations were noted the report must <br /> specify what actions were taken or are planned for correcting those violations. This is a <br /> requirement of the 2003 Standard Provisions and Reporting Requirements. <br /> 2. The Discharger reports wells MW-11, MW-17, MW-18, MWA9, MW-20, and MW-21 <br /> are dry. The report indicates that water level measurements were taken in each of the <br /> monitoring wells prior to purging and sampling. However, the report did not include field <br /> data sheets for the dry wells. As requested in staff's 9 July 2010 letter, field data <br /> sheets for dry wells must be included with the report and discussed within the body of <br /> the text. All well data must be reported. <br /> California Environmental Protection Agency <br /> CdRecycled Paper <br />