All Groundwater-Level Observation wells are accessible from this webpage.

Groundwater is one of Missouri's most abundant and important natural resources

Typical Observation WellIn many areas, groundwater provides nearly all of the water used for private and public water supply. In other areas it mostly supplies rural residents and farm needs. The Missouri Department of Natural Resources has been monitoring groundwater levels throughout Missouri since the mid-1950s. Operated by the department's Water Resources Center, the network consists of 150 wells (as of March 11, 2021) that vary from less than 30 feet deep to more than 1,800 feet deep. They monitor aquifers ranging from shallow, unconfined alluvial and glacial drift aquifers to deep confined bedrock aquifers. Some of these were constructed by the department specifically for measuring groundwater levels. Most, however, began as water supply wells whose use was later discontinued. They subsequently were loaned or donated to the department by cities, rural water districts, businesses or private individuals who no longer needed them for supplying water. 

The groundwater-level changes recorded at these installations are caused by many things; some natural and some man-induced. Naturally-occurring events that affect groundwater levels can include precipitation, changes in river stage, drought, earthquakes, barometric pressure changes, and tidal effects.  Man-induced changes are generally caused by water wells producing large quantities of groundwater.

Soil Moisture Network: In 2020, we began installing probes at stations that measure soil moisture. Soil moisture plays an important role in drought and flood forecasting, agricultural needs, water supply concerns, forest fire prediction, and other natural resource activities. Currently, eight stations measure soil moisture, and some also measure soil temperature. Data is collected every 30 minutes and is transmitted along with groundwater-level information, every hour. The first phase of the project also includes the installation of probes in or near the towns of Atherton, Columbia Bottoms, Indian Hills, Neosho, Ozark and Warsaw. We will note them here after they have been installed. Stations are located in or near the following towns: Map of the groundwater observation wells and link to interactive search.Hermann, Jackson, Lebanon, Mt. Leonard, Naylor, Steele, St. Joseph and Tarkio. All Groundwater-Level Observation wells are accessible from this webpage.

Precipitation Data: More than 30 observation wells collect precipitation data in real-time. These wells are equipped with tipping-bucket rain gauges that measure and record each 0.01 inch of rainfall. Wells where precipitation data are collected are indicated with the letter ‘P’ on the regional maps. The precipitation graphs are shown below the water level graphs. 

Strathydrographs: Strathydrographs are available for approximately 110 observation wells. They are downloadable graphics that combine well site subsurface geology, aquifer hydrogeology, well construction, earliest water level information, and long-term water level trend on a single illustration. Strathydrographs provide a better understanding of what the water level data is showing and how it relates to the aquifer. 

Results for Well Owned by the City of Linn

Groundwater observation wells respond to Sept. 8, 2017, M8.1 earthquake that occurred offshore Chiapas, Mexico

The effect of the Sept. 8, 2017, magnitude 8.1 earthquake that occurred near Chiapas, Mexico was recorded by 24 of Missouri’s 148 groundwater-level observation wells, beginning at midnight (CDT) Sept. 7, 2017. Learn more.