Youngstown, Ohio was once the heart of American steel production. At its peak in the mid-20th century, the Mahoning Valley’s mills employed tens of thousands of workers and produced millions of tons of steel annually. Then came Black Monday — September 19, 1977 — when Youngstown Sheet and Tube announced it was closing its Campbell Works, beginning a cascade of mill closures that devastated the local economy.
The jobs left. The contamination didn’t.
The Mahoning River’s Industrial Burden
The Mahoning River runs through the center of Youngstown and was essentially the spine of the steel industry’s operations in the valley. For decades, steel mills, coke plants, and associated industries discharged waste directly into the river. The Mahoning was so polluted by the mid-20th century that it was essentially biologically dead in many stretches.
The contaminants were severe: heavy metals including lead, chromium, cadmium, zinc, and manganese; polycyclic aromatic hydrocarbons (PAHs) from coke ovens; petroleum products; and various organic chemicals used in steel processing. Sediments in the river accumulated these contaminants over decades, creating a legacy that persists long after the discharges stopped.
The Ohio EPA has conducted extensive assessments of the Mahoning River and its tributaries. While water quality has improved dramatically since the Clean Water Act’s passage in 1972 and the closure of the major mills, contaminated sediments remain a concern. Fish consumption advisories have been in effect for portions of the Mahoning River due to PCBs and mercury in fish tissue.
Superfund and Brownfield Sites
The Youngstown area has multiple contaminated sites from its industrial past:
The former Sharon Steel/Thomas Steel Strip facility in nearby Lowellville operated as a steel processing plant for decades. Contaminated soils and groundwater at the site contain heavy metals and organic compounds. The site has undergone remediation activities under Ohio EPA oversight.
The Mahoning River corridor itself has been the subject of sediment remediation projects. The Army Corps of Engineers and Ohio EPA have worked on removing or capping contaminated sediments in certain reaches of the river.
Numerous brownfield sites throughout Youngstown and the Mahoning Valley represent former industrial properties with varying degrees of soil and groundwater contamination. The city has pursued brownfield redevelopment aggressively, using EPA and state brownfield grants to assess and clean up properties for reuse.
The former Republic Steel/LTV facility sites along the river contained slag piles, waste lagoons, and contaminated soil from steel production. Some of these sites have been remediated; others remain in various stages of assessment and cleanup.
Youngstown’s Drinking Water Today
Here’s the good news: Youngstown doesn’t drink from the Mahoning River. The city’s drinking water comes from Meander Reservoir, a protected surface water source located northwest of the city in Trumbull County. This was a deliberate decision made decades ago precisely because the Mahoning was too contaminated to serve as a drinking water source.
The Youngstown Water Department operates a treatment plant that processes water from Meander Reservoir using conventional treatment including coagulation, flocculation, sedimentation, filtration, and chlorine disinfection.
According to the city’s Consumer Confidence Reports, Youngstown’s treated water meets all EPA primary drinking water standards. The reservoir source, being relatively protected from industrial activity, provides cleaner raw water than the Mahoning River would.
However, several water quality issues deserve attention:
Aging infrastructure is a significant concern. Youngstown’s water system was built to serve a city of 170,000 people at its population peak. Today, the city has about 60,000 residents. That means a water system designed for nearly three times the current population — with pipes, mains, and service lines that are in many cases 80 to 100 years old.
Lead service lines are present in Youngstown’s older neighborhoods. Ohio has been inventorying lead service lines statewide as required under the EPA’s revised Lead and Copper Rule, and Youngstown — like many Rust Belt cities with pre-1950s housing stock — has a significant number.
The Youngstown Water Department adds orthophosphate to its treated water as a corrosion inhibitor, which forms a protective coating inside lead pipes and reduces lead leaching. Lead testing at consumer taps has shown results below the EPA action level of 15 ppb in recent compliance testing rounds. But the EPA has made clear that there is no safe level of lead exposure, and the revised Lead and Copper Rule will require replacement of all lead service lines nationwide.
Water main breaks are a persistent problem in Youngstown. Aging cast iron and ductile iron mains crack and break, particularly during winter freeze-thaw cycles. Each break disrupts service and can temporarily affect water quality in the surrounding area due to pressure changes and potential infiltration.
Groundwater Considerations
Residents in Mahoning County outside Youngstown’s public water service area may rely on private wells. Groundwater quality in the Mahoning Valley is influenced by both geology and industrial contamination.
The USGS has documented groundwater conditions in northeastern Ohio, noting that shallow aquifers in industrialized areas can contain elevated levels of metals, volatile organic compounds (VOCs), and other contaminants associated with historical land use.
Specific concerns for private well owners in the Youngstown area include:
- Heavy metals from industrial contamination of shallow groundwater near former mill sites and disposal areas
- Volatile organic compounds including trichloroethylene (TCE) and other chlorinated solvents used in metal degreasing operations
- Naturally occurring minerals including iron and manganese, which are common in Ohio groundwater and affect taste and appearance even if not health hazards at typical concentrations
- Bacteria from failing septic systems in areas without municipal sewer service
What the Data Shows
EPA compliance records for Youngstown’s water system show generally good compliance with drinking water standards. The utility has not had significant MCL violations in recent years.
The EWG Tap Water Database notes the presence of several contaminants detected in Youngstown’s water at levels below EPA limits but above EWG’s health guidelines. These include:
- Haloacetic acids and trihalomethanes (disinfection byproducts)
- Total chromium
- Barium
These findings are consistent with a surface water source treated with chlorine disinfection — the byproducts are nearly universal in chlorinated systems, and the metals reflect natural geological sources and/or treatment chemicals.
What Residents Can Do
If you’re on Youngstown public water:
- Check whether your home has a lead service line. Contact the Youngstown Water Department or check their service line inventory if available.
- If you have lead pipes, run your tap for at least 30 seconds before using water for drinking or cooking, especially after water has sat in the pipes for several hours.
- Use cold water for cooking and preparing baby formula — hot water dissolves more lead from pipes.
- Consider a point-of-use filter certified for lead removal (NSF/ANSI 53).
If you’re on a private well in Mahoning County:
- Test annually for bacteria, nitrates, and basic water chemistry.
- If you’re near former industrial sites, ask your lab to test for VOCs and heavy metals.
- Check with the Mahoning County Health Department about known groundwater contamination areas near your property.
- Ohio EPA’s Division of Drinking and Ground Waters can provide guidance on well testing.
For everyone:
- Stay informed about the city’s infrastructure improvement plans. Youngstown has been pursuing state and federal funding for water system upgrades, and the Bipartisan Infrastructure Law includes significant funding for lead service line replacement.
- Report water quality issues — discoloration, odor, taste changes — to the water department promptly.
Water Treatment Options
For lead concerns: Reverse osmosis systems and certified carbon block filters are both effective at reducing lead at the tap. For homes with confirmed lead service lines, a point-of-use system at the kitchen tap provides the most practical protection while waiting for line replacement.
For disinfection byproducts: Activated carbon filtration reduces THMs and HAAs effectively. Whole-house systems treat all water; under-sink units treat drinking water.
For private well users with VOC contamination: Activated carbon filters designed for VOC removal are effective for many chlorinated solvents. Severe contamination may require aeration or air stripping systems.
For iron and manganese (common private well nuisances in Ohio): Water softeners, oxidation filters, and specialized iron removal systems can address aesthetic issues.
Youngstown’s story is one of resilience — the city has weathered economic devastation and is rebuilding on its own terms. Understanding the water quality legacy of the industrial era, and taking practical steps to address it, is part of that ongoing renewal.
If you’re concerned about your water quality, a certified water treatment professional can test your water and advise on solutions.