MERCER COUNTY, PENNSYLVANIA · 10 MIN FROM OUR GREENVILLE OFFICE
Wells around Fredonia tend to deliver. Of the 513 logs that record a yield, three in four give 15 gallons a minute or more, and a quarter give 35 or more. The rock mapped under the town is Pottsville Formation sandstone and conglomerate, and by median depth the town ties for 10th of 15 in Mercer County.
Serving our communities since 1967
Fairview Township · Delaware Township · Coolspring Township · Jefferson Township · Perry Township · Otter Creek Township · Lake Township · Mercer · Jackson Center · Jackson Township
WHAT WE DO IN FREDONIA
Whether you’re on a private well or city water, the same crew handles the water source, the pressure, and what comes out of the tap.
The borough draws on two wells and lists one facility, a pumphouse. EPA lists chlorination and 4-log virus treatment, a level that kills nearly all viruses. For a private well, Mercer County's USGS record shows iron above the staining line in 58% of 99 wells, so testing comes first.
A quarter of the 624 local logs stopped at 70 feet or less and a quarter went to 120 or more. Rock sits at 15 feet or less in a quarter of the logs that note it, so casing is short on many lots.
With yields this strong, pump choice is less about protecting the well and more about the house: fixtures, pressure and use. Many wells here can carry a constant-pressure pump, and the flow test confirms it.
WELLS AROUND FREDONIA
The 624 domestic wells on file within 5 miles of Fredonia, from the state’s drilling logs: your neighbors’ wells, and the best guide to this ground.
middle half 70–120 ft
middle half 15–35 gpm
middle half 15–38 ft
PaGWIS records
Source: PaGWIS (PA DCNR), domestic wells within 5 miles, retrieved 2026-09-30; older paper-record locations are approximate.
Mapped at the town center, the rock under Fredonia is the Pottsville Formation, sandstone and conglomerate of Pennsylvanian age. Depth to rock across the 356 logs that record it is a median 25 feet, with a quarter at 38 or more, so casing, which usually runs down to rock, is a modest part of most wells.
The yields are the standout. Half of the 513 logs fall between 15 and 35 gallons a minute, so a standard submersible pump is rarely held back to protect the well, and a constant-pressure setup is often within reach. Residential well drilling covers a new hole, including PA DEP permit assistance, and the cost of a new well shows how depth and casing add up.
Fredonia Borough serves 254 connections from two groundwater wells, which EPA lists as Well 3 and Well 4, and one listed facility, a pumphouse. EPA lists two steps: gaseous chlorination before treatment and 4-log treatment of viruses, meaning disinfection strong enough to inactivate almost all of them. The record we draw on shows no lead sampling rounds for the system, and homes on the line get their water report from the borough.
Private wells nearby get none of the borough's chlorination. Manganese belongs on their test list next to iron: in Mercer County's USGS samples, 54% of 93 wells were over 0.05 mg/L. A water test shows your own levels, and a FerronX iron system handles iron and manganese together.
WATER IN MERCER COUNTY
In USGS samples from across Mercer County, taken 1928–2023, 59% of wells were hard or very hard, 58% carried iron above the staining line, 54% had manganese above 0.05 mg/L. The full record, and what it means for treatment, is on the Mercer County page; your own well gets its own test.
WHY FREDONIA CHOOSES CHATFIELD
Rated 4.7 on Google across 104 reviews. Here is what working with us looks like, in a customer’s words.
“We bought a new home November 1st, 2024 and low and behold it had a collapsed well. After several quotes, we chose Chatfield drilling, and we’re glad we did! Matt & his team arrived quickly to assess the situation, and formulate a plan to get the H2O flowing again. Even through the holidays, they did not waiver. Eric their driller worked hard in the brutal NE Ohio cold to pound a well for us. We are beyond pleased, and have fantastic water!”
NEARBY
We send the same crews to each of these towns. If you’re between towns, pick the closest one; the service doesn’t change.
A LITTLE CLARITY
Our Greenville office (854 Mercer Rd., Greenville, PA 16125) is about 10 minutes and 6 miles by road from Fredonia. Service calls for Fredonia are scheduled from there.
Fredonia and the municipalities around it: Fairview Township, Delaware Township, Coolspring Township, Jefferson Township, Perry Township, Otter Creek Township, Lake Township, Mercer, Jackson Center, Jackson Township. Beyond those, the rest of the 15 Mercer County communities on our service map, from the same office.
Pennsylvania’s groundwater database (PaGWIS) lists 624 domestic wells within 5 miles of Fredonia: the median is 90 feet deep, and the middle half fall between 70 and 120 feet. The median well was logged at 20 gallons per minute. Drillers reached bedrock at a median of 25 feet. Your own well's depth depends on the ground under your lot.
EPA's listing for the system names gaseous chlorination, applied before treatment, and 4-log treatment of viruses, and nothing else. That listing doesn't describe everything about the water at your tap. The borough's water report says more, and a home water test covers hardness, iron and the rest.
Usually a standard submersible, sized to the house as much as to the well. With a quarter of local logs at 35 gallons a minute or more, the well is rarely the bottleneck, and a constant-pressure model is often worth a look. A well at the low end, 15 or less, gets its pump picked more tightly from the flow test.
Talk with the Chatfield team.
(724) 588-2652A LITTLE KNOWLEDGE GOES A LONG WAY
WATER TESTINGWhat a test measures, what the results mean, and what happens next.
WELL DRILLINGWhat drives the price of drilling a well in our region, and what to ask before you sign.
WATER PROBLEMSIron and manganese in well water: what causes it and how a test confirms it.
YOUR NEXT STEP
Tell us what you’re noticing. We’ll come out from Greenville, test your water, and walk you through the next step.