NJ Well Driller case studies
NJ Well Driller · Put your knowledge to work in context.
The New Jersey Well Driller credential is the state-level authorization a person needs to construct, alter, repair, or abandon water wells in New Jersey. It is aimed at working drillers, pump installers moving into well construction, and field supervisors who will sign off on well records and sealing work. The NJ Well Driller case studies are 5 cases and about 2,494 words.
1Bedrock Casing Seat and Annular Seal
A homeowner needs a replacement well on a 0.5-acre lot in Sussex County. The driller proposes an 8-inch borehole to 300 ft with 6-inch steel casing set 8 ft into competent granite encountered at 40 ft.
551 words, about 3 min2Short Cycling, Tank Drawdown, and Pump Setting
A 1.5 hp, 10 gpm submersible pump is set at 240 ft in a 320-ft, 6-inch well. Static water level is 80 ft; pumping water level after 30 minutes is 210 ft and still falling slowly.
512 words, about 3 min3Iron, Manganese, Odor, and a Positive Coliform Result
A new 6-inch well serving a 4-bedroom home has raw water at 8 gpm: pH 6.8, iron 6.5 mg/L, manganese 0.9 mg/L, hardness 220 mg/L as CaCO3, sulfate 25 mg/L, nitrate 4.0 mg/L, arsenic 4 µg/L, and a strong hydrogen sulfide odor. The initial total coliform sample is positive, though the well was disinfected after drilling.
461 words, about 2 min4Sealing a Dug Well and a Sand Point Near a Septic System
A developer is redeveloping a 0.75-acre parcel and plans a new septic system. Two old wells are found: a 24-inch-diameter brick-lined dug well 18 ft deep, with water at 12 ft, and a 2-inch driven sand-point well 35 ft deep located 12 ft from the proposed septic trench.
454 words, about 2 min5Coastal Plain Irrigation Well and Stream Depletion
A municipality proposes a 12-inch irrigation well in the New Jersey Coastal Plain to supply 60,000 gpd (about 42 gpm continuously) for a golf course. The site is 150 ft from a trout-maintenance stream and within 1,000 ft of 15 residential wells completed at 250-350 ft in the same aquifer.
516 words, about 3 min