IL Well Driller case studies
IL Well Driller · Put your knowledge to work in context.
The Illinois Water Well Driller credential is administered in a state whose drinking-water oversight sits with the Illinois Department of Public Health (IDPH), the agency that publishes the department's environmental health protection, licensing and certification, and laws and rules material. This page is an independent study resource for candidates preparing for that licensing exam; it is not affiliated with, endorsed by, or operated by IDPH or the State of Illinois. The IL Well Driller case studies are 5 cases and about 2,823 words.
1Septic Setbacks and a Floodplain Casing
A licensed driller is asked to site a new 4-inch PVC domestic well on a 2-acre lot in Pike County. The proposed location is 55 ft from a 1,000-gallon septic tank, 70 ft from the nearest lateral of the absorption field, 30 ft from a fenced cattle pen, 40 ft from the property line, and 90 ft from a neighbor's 30-ft hand-dug well.
634 words, about 3 min2Caving Cobbles and Lost Circulation
A driller is bidding a 12-inch borehole for a 6-inch community well in a glacial outwash valley. Logs show 0-25 ft sandy loam, 25-85 ft clean sand and gravel, 85-130 ft coarse gravel with cobbles, and shale below 130 ft.
575 words, about 3 min3Sand, Chlorine Dose, and Pump Placement
A new 6-inch PVC well is 220 ft deep with casing to 140 ft and a 20-slot screen from 140 to 220 ft. Static water is 45 ft; pumping level is 110 ft at 15 gpm.
552 words, about 3 min4Abandoning a Brick-Lined Dug Well
A farm owner wants to abandon a 36-inch-diameter hand-dug well that is 30 ft deep with a brick liner. The well is 60 ft from the proposed replacement well, 70 ft from a septic tank, and 50 ft from an absorption field.
534 words, about 3 min5License Scope, Permit, and Missing Report
A licensed Illinois water well driller is hired to replace a failed well at a rural residence. He drills a new 150-ft well, installs a submersible pump and pressure tank, and abandons the old well by filling it with gravel.
528 words, about 3 min