ARCHIVED REPORTS XR0007858 - Laserfiche WebLink

Home Browse Search

h F , r , v ' ' I e • u� 1 � I 4 J 1 Ground Water Monitoring Report =First,Quarter 2001 ' CHARLIE'S DAY AND NITE w 706 North El Dorado Street, Stockton, California 1.0. INTRODUCTION ' At the request of Mr Charles Skobrak of Charlie's Day and Nlte,Advanced GeoEnvironmental,Inc (AGE)'has prepared this quarterly report for the property located at 706 North El Dorado Street, y i Stockton, California Quarterly ground water monitoring was conducted on 20 February 200f The ' - site location and the surrounding area are Illustrated in Figure 1 Structures and improvements as well as boring and monitoring well locations are Illustrated on Figure#2 Background information is , ' summarized in the AGE report titled Preliminary Investigation and Evaluation Report - March r ' 1999;dated 26 March 1999 I 2.0, PROCEDURES � , Field work was performed in accordance with guidelines established by the California Regional ' Water Quality Control Board-Central Valley Division for investigation of underground storage tank (UST)sites Ground water monitoring procedures were performed as`outlined in the AGE-prepared- Monitoring Well Installation Work Plan dated 29 July 1999,,and approved by PHS-EHD by letter` dated 03 August 1999 2 1 MONITORING WELL PURGE PROCEDURES I ,On 20 February 2001, a Solimt water level meter was used to measure the depth to`ground water in I the three wells(MW 1,MW2 and MW3)relative to the tops of the well casings 'The 'relative ground ��U water,elevat ions and gradient were determined from these data(Table 1) After recording water level measurements, a two-stage submersible pump was used to purge each r monitoring well of standing water Approximately 6 gallons of water, a minimum of 3 casing-water , ' volumes'evere'removed from MW-I and MW-3, approximately 7 gallons of water were removed from MW-2 Ground water temperature, pH and conductivity were measured at approximately 1:L { gallon intervals during purging using a Hydac,water analyzer` Field sheets and data are included In tAppendix A Purged water was stored on site in labeled, 557gallon DOT-approved drums 1 - 2 2 COLLECTION OF GROUND WATER SAMPLES Water samples were collected from each purged well using new disposable plastic bailers Each ' water sample was transferred into three 40-m1 VOA'vials containing 0 5 ml 18%hydrochloric acid ' • as a sample preservative After collection, the samples,were,properly labeled, placed in a chilled w Advanced GeoEnvironmental,Inc II ti I r + baa