COMPLIANCE INFO_1996-2003 - Laserfiche WebLink

Home Browse Search

0LFR LEVINE•FRICKE November 18, 2002 LFR 003-09020-00 1__,;_J7 f,I .. E 0 Mr. Robert McClellon NOV 1 9 2002 San Joaquin County Environmental Health Division 304 East Webber Avenue, 3rd Floor _WHONMENT HEALTH Stockton, California 95202 PERMIT/SERVICES Subject: Fourth Quarter 2002 Soil Gas Monitoring Report and Notice of Excess of Compliance Levels, Austin Road Landfill, San Joaquin County, California _ Dear Mr. McClellon: This letter report presents results of soil gas monitoring conducted by LFR Levine-Fricke (LFR) on behalf of Forward Incorporated (Forward) at the Austin Road Landfill in San Joaquin County on November 13, 2002. Forward has retained LFR to conduct quarterly soil gas monitoring at the Austin Road Landfill. Soil gas monitoring conducted on November 13, 2002 revealed elevated methane concentrations (above 5.0 percent by volume) in soil gas probe SGP-2A (Figure 1) located along the southern landfill boundary (between the Forward and Austin Road Landfills). Other nearby soil gas probes associated with the Austin Road and Forward Landfills were also monitored on November 13, 2002 and did not indicate elevated concentrations of methane. In accordance with CCR Title 27, Section 20937(a), this letter report is also being submitted to inform the enforcement agency (EA) that methane was detected above the lower explosive level (LEL) in soil gas probe-2A (SGP-2A) at a concentration of 13.3 percent by volume. This methane detection is likely a result of recent landfill activities in the vicinity of the southern landfill boundary between the Forward and Austin Road Landfills. These previously separate landfills are now operated by Forward as a single landfill. Due to the recent operations at the now combined Forward/Austin Road Landfill, SGP-2A is no longer located along the perimeter of the working landfill, rather SGP-2A is now located between active operating landfill areas at the site. In accordance with CCR Title 27 Section 20937 (a)(1), an evaluation was conducted by Forward personnel regarding the necessary immediate steps to protect public health and safety and the environment. At this time, Forward has concluded there appears to be no potential hazardous conditions based on field monitoring results of on-site buildings and ambient air (as shown on Table 1). Forward is currently installing a new landfill gas extraction system at the Austin Road/Forward Landfill to work in conjunction with the current gas extraction system at the Austin Road Landfill. According to the current gas extraction facility operator (Mr. Dennis Young), the current Austin Road gas extraction system has been shut off for periods of up to one month during the last six months to allow for the relocation of Littlejohn Creek, to allow for resumed landfill operations at 4080CavittStallmanRoad,Suite 100,Granite Bay,California 95746-9460 • (916)786-0320 - fax(916)786-0366 • www.lfr.com Offices Worldwide