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Job Steps Risks/Hazards Quality/Safe Work Practices <br /> Nurge well, it required. <br /> Before beginning bailing,performing general stretching exercises is <br /> Repetitive motion(bailing) recommended. While bailing, lift with legs, not back. Take frequent rests if <br /> back/arms/legs become fatigued. <br /> Ensure that the water quality meter being used has been calibrated,or calibrate <br /> if necessary. <br /> Measuring groundwater parameters in Inadequate readings <br /> the field If the required groundwater parameter measurements include dissolved oxygen <br /> (DO),oxidation-reduction potential(ORP),or other parameters sensitive to <br /> atmospheric exposure, use through flow cell. <br /> Bottles should be kept in a shaded area or pre-chilled to minimize the potential <br /> Caustic/burns from acidic or basic preservative for vaporization and inhalation of preservative upon opening(for example,vapor <br /> from acid). Extra care should be taken to avoid spillage when handling bottles <br /> containing preservative. <br /> Use the appropriate laboratory supplied bottles. Bottles should be filled in <br /> adherence with laboratory and/or appropriate regulatory specifications. For <br /> example:water should be poured slowly into bottles to avoid bubble formation, <br /> Obtaining groundwater sample Samples collected do not meet quality standards. spilling,and splashing; DO NOT OVERFILL bottles that contain chemical <br /> preservatives(such as acids or bases). Sample bottles should be labeled prior <br /> to filling,and immediately placed into on a pre-chilled cooler containing ice after <br /> filling. <br /> Wear Kevlar gloves between Nitrile gloves.Gently put on the lid. When <br /> Cuts due to breakage of glass containers tightening DO NOT press down on the lid; rather,pull upwards gently and let the <br /> threads draw the cap down. If there is broken glass,use a small broom and <br /> dustpan to sweep up the broken glass wearing Kevlar gloves. <br /> Cross contamination See above <br /> Breakdown/cleanup of purging and <br /> sampling equipment <br /> Make sure the well vault/manhole covers are bolted down and secure. Put <br /> Trip over equipment(pump,cords,tubing,string,etc.) away all loose tools,equipment and garbage before removing cones/flags and <br /> signs. <br /> Write the sample number and project number on the sample or sample <br /> Lose track of physical sample container. Use proper labeling of samples and indicate all pertinent information; <br /> including date,well number,site name,and time of sample collection. <br /> Document sample collection <br /> Complete chain of custody as samples are collected and assure it is legible at <br /> Incomplete sample record time of sample collection. Verify that all samples are labeled appropriately, <br /> indicated on the chain of custody,and in the cooler. <br /> Document Task Activity Unable to prove through records that task was performed as required Be consistent in documenting activities in the field record(e.g.field book or field <br /> sampling form),including water level measurements and time of sampling. <br /> Personnel are adequately Work is invalid as performed by person not trained/certified/qualified to Ensure staff have the correct certification and training to perform the assigned <br /> trained/certified/qualified to perform task perform task task <br /> Page 3 of 4 <br />