ARCHIVED REPORTS_XR0005181 - Laserfiche WebLink

Home Browse Search

1 Cal Fence Inc. at the location shown on Figure 4. The fence posts were installed in concrete with a six-foot high chain link fence and three strands of barbed wire on top. The remediation compound includes a 10-foot wide swing gate. In May 2004, Pacific Gas & Electric (PG&E) Company provided access to the on-site transformer ' and installed a separate electrical meter for the remediation system. Green Electric installed one 25-foot high power pole, one 100 amp 3ph meter panel, one 100 amp, 3-phase sub panel on the power pole. On June 16, 2004, ATC personnel and McCullough Environmental installed the C-Spargerrm ' ozone equipment and an oxygen generator to enhance the capabilities of the C-SpargerTM unit and made the necessary connections to the electrical service and double contained piping. ' 6.3 Start—Up and Initial Operations and Monitorin The C-Sparger" ozone system was initiated on June 17, 2004, The C-Sparge' remediation ' system consists of a KVA C-Sparge' System Series 5030 model. This includes a small profile Master Unit (43"w x 29.5"h x 12"d, 120 lbs) which has a capacity of serving up to twelve (12) SpargepointsTM sequentially but is currently serving 10 SpargepointsTM Figures 5, 6 and 7 are simplified process and instrumentationP&ID rams for the { ) diagrams remediation system at the Jamar property. An operations and maintenance (O&M) manual is contained in Appendix D. Data from the C-SpargerT"' ozone injection system operations will be summarized in the Third Quarter 2004 Monitoring Report submitted under separate cover. As indicated, two sparge points are installed in each of five injection wells (IW 1 through IW5). Each of the eight-sparge points in IW1 through IW4 is on a separate injection schedule. The two- ' sparge points in IW5 are combined together. 03 is injected sequentially in each of the 8 separate sparge points at eight-minute intervals in IW 1 through IW4 and for a 16-minute interval at the combined sparge points in IW5. This is 80-minutes for all sparge points combined with one shut- off period for 10 minutes after all intervals are completed or ninety minutes for a complete cycle including the shut off period. If the system is fully operational (i.e., no unscheduled down time) each sparge point is operated 16 cycles per day or a total of 128 minutes per day at each of the ' eight separate sparge points (i.e., in IW1 through IW4) and 256 minutes for the combined sparge points at IW5 or a total system operation of 1280 minutes per day(Table 3). Seven on-site ground water monitoring wells (MW1, MW2, MW3, MW4, MW5, MW8 and = = =EW1)7make up the on site remediation system monitoring well network at the Jamar site.=Nine off site wells - MW6a, MW6b, MW6c, MW7a, MW7b, MW7c, MW9a, MW9b and MW9c are ' used for additional groundwater monitoring information but not currently part of the active remediation system. If necessary, additional off site wells will be incorporated into the active remediation system monitoring well network at the Jamar property. ' w:lwordpro1268231report5lremsysinst.doe 5