Laserfiche WebLink
Boring Permit Application <br />TRACY HILLS SITE — PROPOSED ELEMENTARY SCHOOL <br />WKA No. 10137.04P <br />February 22, 2018 <br />Page 7 <br />Inhalation Exposure <br />Site action will cease upon the detection of visible dust. The presence of dust will be visually <br />monitored. Dust is generally visible at approximately 3 mg/m3. The Action Level for visible dust <br />is 5 mg/m3 . Therefore, if visual air monitoring indicates the presence of dust for more than 30 <br />seconds <br />Dermal Contact and Ingestion <br />Actions will be taken to reduce dermal contact and ingestion. Incidental dermal exposure to soil <br />and groundwater containing chemicals of potential concern is a secondary exposure route of <br />concern. This exposure pathway will be controlled with the institution of proper hygienic <br />practices and use of appropriate personal protective equipment. <br />Incidental ingestion of soil and groundwater containing chemicals of concern is a secondary <br />exposure route of concern. This exposure pathway will be controlled with the institution of <br />proper hygienic practices. <br />Physical Hazards <br />Field activities at the Site will utilize a drill rig for advancing soil borings and collecting soil and <br />groundwater samples. Physical hazards associated with drilling and sampling activities include <br />excessive noise, pinched fingers and toes, and inclement weather. Physical hazards will be <br />reduced by adherence to the Contractors IIPP and Code of Safe Work Practices. <br />Cold Stress <br />Cold stress may become an issue depending on the time of year this action is implemented. <br />Ambient site temperatures can be below 40 degrees Fahrenheit. Cold stress can pose as great <br />a danger to worker health as chemical exposure. Cold stress can cause hypothermia, frostbite, <br />or trench foot resulting in impaired functional ability that threatens the safety of both the <br />individual and workers. <br />Heat Stress <br />Heat stress may become an issue depending on the time of year this action is implemented. <br />Ambient site temperatures can range in excess of 100 degrees Fahrenheit. Heat stress can <br />occur within as little as 15 minutes, and can pose as great a danger to worker health as <br />chemical exposure. In its early stages, heat stress can cause rashes, cramps, discomfort and