ARCHIVED REPORTS_[REV] MAY & JULY 2014 RCSI

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1.1 ODOR MONITORING PROTOCOL 1.1.1 Proximity of Odor Receptors Land use surrounding the RRF and Compost Facility is primarily agricultural to the east, west, and south. As shown in Figure 2, there is one residence located near the site (within approximately a half mile or less). The residence at 9690 Austin Road is approximately 500 feet from the landfill, on the east side of Austin Road across from the landfill's main entrance. This dwelling is currently rented by Forward, Inc. and kept vacant. In addition, three residences, with surrounding ancillary structures, are located on the east side of Austin Road, approximately one mile north of the main landfill entrance. Two additional residences, with surrounding ancillary structures, are located east of Austin Road, south of the landfill. Potential off-site receptors within two miles of the site include: • Northern California Youth Correctional Center (a detention facility) • California Health Care Facility (CHCF) • Stockton Metropolitan Airport • Burlington Northern and Santa Fe Intermodal Facility Figure 2 provides an overview of the surrounding area within 1,000 feet and within one mile. Compost operations are located in the south eastern portion of the site directly adjacent to the RRF and away from sensitive receptors. The closest receptors are site personnel who operate and manage the facility during operating hours and monitor compliance with applicable regulations. 1.1.2 Method for Assessing Odor Impacts Each day the operator evaluates on -site odors and operations for potential release of objectionable odors. Best Management Practices (BMPs) and good housekeeping measures are implemented to minimize the release of objectionable odors. Specific activities which reduce/prevent odors include the following: • Avoiding creating large stockpiles of incoming material. • Producing a homogeneous material with the proper moisture content. • Providing adequate aeration and agitation. • Incorporating careful control of processing temperatures to maintain the rate of decomposition. • Maintaining a carbon-to-nitrogen ratio above 25:1 in initial mixes of high nitrogen materials. • Placing a layer of cured compost over raw compost materials to act as an odor trap and serve as insulation. • USing an organic odor neutralizer. Forward Compost Facility -OIMP 2 SWT Engineering z:\projects\aliied waste\forward\resource recovery fac ility\5 yr permit rvw 2013-14\rcsi 2014\appendices\app e-oimp\oimp text. doc; 7/18/2014