The 734 domestic wells on file within 5 miles of Hartford, from the state’s drilling logs: your neighbors’ wells, and the best guide to this ground.
Source: ODNR well logs, domestic wells within 5 miles, retrieved 2026-09-30.
Planning a Hartford Well Around 14 Gallons
The yield figures near Hartford are consistent but not large. The median log gives 14 gallons a minute, the middle half 9 to 20, and one well in four gives 9 or less. That is enough for a household if the pump and tank are set up for it.
The key is storage and pacing. A pressure tank holds a reserve that covers short, heavy draws, so the pump starts less often and runs longer. The pump itself is chosen so it never outpaces the well, and a pressure switch set to suit it keeps cycles even. A well that no longer keeps up may need well cleaning as well as a pump check.
Pennsylvanian Rock and a Deep Quarter
The rock mapped at Hartford's town center is the Allegheny and Pottsville Groups, Pennsylvanian in age, a mix of shale, siltstone, limestone and sandstone. The logs meet rock early: half of 694 found it at 18 feet or less, and the middle half between 12 and 25. With Ohio's private-well casing minimum at 25 feet, the casing here seals into rock and the rest of the bore is in rock.
Depth is less uniform. The median well stops at 92 feet and the shallow quarter at 73, but a quarter go past 130, deeper than the county's upper-quarter mark of 125. A well is drilled until it has enough water, so some bores here need that extra depth. Residential drilling and the cost guide explain what depth means for the job.