Investigating and Remediating Existing/Legacy Cross Bores

1 Investigating and Remediating Existing/Legacy Cross Bores Do Not Assume Depth or Location of Sewer or Natural Gas Facilities Use locating tools to pinpoint Calculate depth of gravity Use camera to verify no facilities or sewer or Cross bore If locating is inconclusive or gas facilities are within 3 feet/1. meter of sewer Establish a visual Hand dig or use a vacuum Verify no Cross bore has tolerance/safety zone truck to expose both facilities occurred Repair All Cross Bores , if possible, Before Leaving Site If delayed, inform property owner of the Cross bore, the Schedule repair of Schedule property associated risks and that no intersected facilities restoration cleaning should occur 1) Do not assume depth or location of sewer or natural gas facilities Use locating tools to pinpoint facilities or Calculate depth of gravity sewer or Use camera to verify no Cross bore Existing/Legacy Cross Bores 2)

2 If locating is inconclusive or gas facilities are within 3 feet/1 meter of sewer Establish a visual tolerance/safety zone Hand dig or use a vacuum truck to expose both facilities Verify no Cross bore has occurred 3) Repair all Cross Bores , if possible, prior to leaving the site If delayed, inform property owner of the Cross bore, the associated risks and that no cleaning should occur Schedule repair of intersected Tailgate Briefing facilities and property restoration MAY 2013.