Buffalo, New York sits at the eastern tip of Lake Erie, giving it access to one of the largest freshwater sources on the planet. The Buffalo Water Authority treats about 60 million gallons per day from Lake Erie, serving roughly 260,000 city residents plus surrounding communities. The source water is good. The problems start after treatment.
Lead Infrastructure: A Rust Belt Reality
Buffalo was built during America’s industrial boom. Most of the city’s residential plumbing was installed between the 1880s and 1940s — prime lead pipe era. The Buffalo Water Authority estimates between 20,000 and 30,000 lead service lines remain in the system.
The city’s lead levels at the tap have historically stayed below the EPA action level of 15 parts per billion, but the 90th percentile numbers bounce around. Individual homes, especially those with both lead service lines and lead solder on interior copper, can see significantly higher levels than system-wide averages suggest.
Buffalo has been ramping up its lead service line replacement program, partly funded through the Bipartisan Infrastructure Law. The pace matters — at current replacement rates, it’ll still take many years to eliminate all lead connections. In the meantime, the water authority uses corrosion control treatment (orthophosphate) to reduce lead leaching.
Combined Sewer Overflows
Buffalo, like many Great Lakes cities, has a combined sewer system — meaning stormwater and sewage flow through the same pipes. During heavy rain or snowmelt events, the system can overflow, sending untreated or partially treated sewage into the Buffalo River, Scajaquada Creek, and Lake Erie.
The Buffalo Sewer Authority has been under a consent order to reduce CSO discharges and has invested hundreds of millions in infrastructure improvements. Progress is real but slow. The good news: Buffalo’s drinking water intake on Lake Erie is positioned to avoid direct CSO contamination. But the broader ecological health of the lake matters for long-term water quality.
PFAS and Industrial Contamination
Western New York’s industrial legacy includes several sites with documented PFAS contamination. The former Niagara Falls Air Reserve Station and other military installations in the region have shown elevated PFAS levels in groundwater.
For Buffalo’s municipal supply, the lake water source provides some dilution protection. But New York’s strict PFAS standards (10 ppt for PFOA, 10 ppt for PFOS) mean the water authority must monitor carefully. Buffalo’s most recent testing shows results below state limits for the major PFAS compounds.
Private well users in Erie County suburbs should be more cautious. Groundwater contamination from industrial sites doesn’t respect municipal boundaries, and wells drawing from shallow aquifers near former manufacturing or military facilities should be tested.
Niagara River Influence
The Niagara River, which flows from Lake Erie to Lake Ontario, carries the cumulative pollution load of upstream sources — including legacy chemicals from Love Canal and other Superfund sites in the Niagara Falls area. While Buffalo’s intake is on Lake Erie proper (upstream of the Niagara River outflow), the broader contamination picture in the region is worth understanding.
The EPA and New York DEC continue to monitor and remediate multiple Superfund sites in the Buffalo-Niagara corridor. For residents, the key takeaway is that the region’s industrial past continues to shape its water quality present.
Disinfection and Water Hardness
Buffalo’s Lake Erie water is moderately hard (around 120-140 mg/L as calcium carbonate) — not extreme, but enough that residents notice mineral buildup on fixtures and in appliances. The water authority uses chlorine for disinfection, with THM levels typically running within EPA limits.
The seasonal character of Lake Erie matters too. Summer algal blooms driven by agricultural runoff from Ohio and Indiana can affect water taste and increase the need for treatment adjustments. The 2014 Toledo water crisis, caused by a microcystin bloom that shut down the city’s water supply, was a wake-up call for all Great Lakes water utilities. Buffalo has since enhanced its monitoring for algal toxins.
What Residents Can Do
- Find out your service line material. Contact the Buffalo Water Authority to check if your home has a lead service line. Request replacement if it does.
- Use a certified filter. NSF/ANSI 53 certified filters for lead removal are effective and affordable for point-of-use protection.
- Flush before drinking. Run cold water for 2-3 minutes if pipes have been idle for hours.
- Private well owners: Get tested for lead, PFAS, nitrates, and bacteria. Erie County Health Department can direct you to testing resources.
If you’re concerned about your water quality, a certified water treatment professional can test your water and advise on solutions tailored to your home.
If you live elsewhere in New York, see our coverage of Rochester water quality and Syracuse water quality.
Sources: Buffalo Water Authority, NYS DEC, EPA SDWIS, Erie County Health Department, USGS