Vandalia Alkaline Springs

## Overview Vandalia Alkaline Springs is a public drinking spring located near Vandalia, Ohio, in the greater Dayton metropolitan area. Situated at approximately 39.882°N, 84.195°W, this spring draws from the naturally alkaline groundwater resources characteristic of western Ohio's limestone-rich geology. The region sits atop extensive Silurian and Ordovician limestone and dolomite bedrock, which naturally raises the pH of groundwater as it filters through calcium- and magnesium-rich rock layers — giving the water its alkaline character. The name "Alkaline Springs" reflects the mineral-rich nature of the water, which has historically attracted visitors seeking naturally high-pH spring water. Western Ohio's carbonate aquifer system is well known for producing water with elevated mineral content, and springs like this one have long served as community gathering points and sources of drinking water for local residents. Visitors have historically used this spring as a drinking water source, though water quality can vary over time and with seasonal conditions. ## Directions The spring is located in the Vandalia, Ohio area, just north of Dayton. Using the GPS coordinates (39.8822958663808, -84.1951083555464), navigate via a GPS-enabled device or mapping application for the most accurate route. The coordinates place the spring in a residential/suburban area of Vandalia, accessible from nearby roads off the I-75 and I-70 corridor. 1. From downtown Dayton, head north on I-75 toward Vandalia. 2. Use the GPS coordinates (39.8823, -84.1951) in your preferred navigation app to pinpoint the exact location. 3. Look for the spring access point once you arrive in the immediate area. ## What to Expect Vandalia Alkaline Springs is a publicly accessible drinking spring. As with many community springs in Ohio's Miami Valley, expect a simple setup — typically a pipe or spout where water flows freely for collection. The surrounding area is suburban in character, situated within the city of Vandalia. The alkaline nature of the water is a product of the local geology. As rainwater percolates through the thick limestone and dolomite bedrock beneath this part of Ohio, it picks up dissolved calcium and magnesium carbonates, which naturally raise the water's pH above neutral. This is what gives the spring its "alkaline" designation and has made it a popular stop for those who prefer naturally mineral-rich water. Visitors often bring jugs and containers to fill. Because this is a natural spring, flow rates may vary with the seasons — wetter months typically produce stronger flow. As with any natural water source, conditions can change, and the water has not been independently verified for safety at the time of this writing.