Laserfiche WebLink
<br />31 <br /> <br />DRILLING ACTIVITIES <br />Potential <br />Hazards <br />Initial Risk <br />Ranking <br />(R/Y/G) <br />Hazard Controls <br />(including PPE requirements) <br />Applicable Policy or <br />Procedures <br />Residual Risk <br />Ranking (R/Y/G) <br />Underground <br />Utilities <br /> <br />(Electrical, <br />chemical, and <br />explosion hazards) <br />R • Prior to the start of work review potential underground <br />utility hazards and control measures with site workers. <br />• Conduct utility locates. Utilize both the municipal One Call <br />Center and a private locating firm. <br />• Mark locations of utilities and types of services in the work <br />area. <br />• Document utility mark-outs by using either SLR’s Utility <br />Clearance Mark-Out Log (Attachment 10A) or a similar <br />document provided by the line locate service. <br />• Conduct a site survey prior to ground disturbance (GD) <br />operations to search for signs of other buried or overhead <br />utilities. Record the results of the survey on SLR’s Ground <br />Disturbance Checklist (Attachment 10B). <br />• Cease work immediately if unknown utility markers are <br />uncovered. <br />• Prior to GD each location must be exposed to a minimum of <br />5 feet bgs by either hand-digging, vacuum excavation, hand <br />tools that use air or water under pressure, or other non- <br />mechanical methods; or, submit a clearance variance if any <br />of the above requirements cannot be met. <br />• During excavation activities only hand-digging is permitted <br />within 3 feet of underground high voltage, product, or gas <br />lines. <br />• Do not conduct GD work within 50 feet of a fiber optic cable <br />without documented agreement from the fiber optic <br />company. <br />HSE Manual, Section 10 – <br />Utility Contact Prevention <br />Program <br /> <br />Attachment 10A – Utility <br />Clearance Mark-Out Log <br /> <br />Attachment 10B – Ground <br />Disturbance Checklist <br /> <br />Clearance Variance <br />Requests – see Section <br />10.4.3.5 of the SLR <br />program. <br />Y <br />Overhead Utilities <br /> <br />(Electrical hazards) <br />R • Inspect the site to identify potential overhead utility <br />hazards based on anticipated work activities and equipment <br />usage. <br />HSE Manual, Section 10 – <br />Utility Contact Prevention <br />Program <br /> <br />Y