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lock) and using a photo-ionization detector (PID) to measure the headspace in the bag. Soil samples collected from the borings are not proposed for laboratory analysis. Grab ground water samples will be collected from two depths within each of the borings. The first sample will be collected from within the shallow sandy fill materials by stopping the boring at the approximate base of the sandy fill. The second sample will be collected between 15 feet and 20 feet bgs, from within the underlying silts and clays. In the event that shallow sandy fill materials are not encountered, the boring will simply continue to approximately 20 feet and a grab ground water sample will be collected. Deeper grab ground water samples will be collected between 30 feet and 35 feet bgs from borings Cl, C9, and C10. In all cases, coarser grained sandy lenses within the silts and clays will be preferentially targeted for sampling ground water. Upon reaching the desired depth in the boring, 5 feet of slotted PVC screen will be lowered into the boring to serve as temporary well casing. Ground water grab samples will be collected within the PVC screen using a bailer constructed of Teflon, PVC, or stainless steel. The ground water samples will be gently conveyed into laboratory-supplied containers for the appropriate type of analyses. The ground water sample containers will be sealed, labeled, and placed in a cooler containing ice immediately after collection. The samples will be transport to a state- certified laboratory under standard chain-of-custody protocols. Due to the number of samples, an on-site mobile laboratory may be used to allow decisions to be made in the field regarding the need for collecting ground water samples in addition to the proposed locations. 3.3 EMPLOYEE NOTIFICATION OF HAZARDS AND OVERALL SITE INFORMATION PROGRAM The information in the JHAs and the attached data sheets is made available to all employees who could be affected by it prior to the time they begin their work activities. Modifications to JHAs and the accompanying data sheets are communicated during routine briefings. Consistent with paragraph(i) of HAZWOPPER, we also inform other contractors and subcontractors about the nature and level of hazardous substances at this site, and the likely degree of exposure to workers who participate in site operations. The party responsible for providing site information, this HASP and any modifications to the HASP to other contractors and subcontractors working on this site is ERS Corp. Environmental Risk Services,Corp.