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Click on the nearest red dot -> Click Access Data -> Find the water table level of your area. For example: The well depth level of Norfolk County, Massachusetts is 52.2 feet below the land surface.
Explore comprehensive water well maps and depth estimates across the United States. Generate instant site surveys and easily locate nearby drilling professionals.
The Groundwater database consists of more than 850,000 records of wells, springs, test holes, tunnels,drains, and excavations in the United States. Available site descriptive information includes well location information such as latitude and longitude, well depth, and aquifer.
A static image of interactive map with the typical depth to the bottom of the open intervals of public-supply wells to the left and domestic-supply wells to the right of the movable slider.
For drinking water, a well should be dug to a depth of at least 100′ feet below the ground surface or 10′ feet below the water table. Deeper wells can range from 300′ – 600′ feet or more depending on the soil type and local regulations.
The most reliable method of obtaining the depth to the water table at any given time is to measure the water level in a shallow well with a tape. If no wells are available, surface geophysical methods can sometimes be used, depending on surface accessibility for placing electric or acoustic probes.
The Depth-To-Water (DTW) dashboard is designed to give an overview of groundwater levels in AZ's basins and sub-basins, providing summary statistics.
The National Ground-Water Monitoring Network compiles information from over 7,000 groundwater monitoring wells across the country, including Federal, State, and local groundwater monitoring networks.
Most household water wells range from 100 to 800 feet deep, but a few are over 1,000 feet deep. Well yields can be increased by fracturing the bedrock immediately around the drill hole and intercepted rock faults.
This document describes general and specific procedures, methods and considerations to be used and observed when determining water levels and depths of wells. Last updated on May 9, 2024.