THINK BEFORE YOU DRINK!
Many cities in Niagara County get their water from the Niagara River, but where does the water come from before it reaches the municipal water intakes and what comes in most go out? The waste water produced goes through a treatment facility before getting returned back into the water below the intakes.
Many people dump unused medications down the toilet. What they are unaware of, is the fact that pharmaceutical drugs are stable under a wide range of environmental conditions. So siting in water does not change the drug, but will change how strong it is by delusion. Many people do not realize that the medications in trace amounts will cause the water to be classified as non-drinkable.
In Indian Country, with ground water and septic tanks will produce a focused point of contamination that gets recycled through the the system of septic field-to-ground water and back to the septic field. If it is a broad spectrum antibiotic, then you could kill or weaken the bacteria in the septic tank that can cause an increase in e-coli.
As you can see it starts to develop a cycle of other health concerns. Some places consider instead of dumping it down the toilet to crush it up and put it in your trash which gets shipped to the local landfill. Once it gets wet you still have the same problem of the leachate containing the medication. So ask how they plan on disposing of the medications.
Keeping pharmaceutical medications out of your drinking water does take planning and coordination from local, state and federal agencies. The weblink below will give you the results of a well organized effort to keep safe drinking water.