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Water Well Resources

          Well Guides     Groundwater    Floods and Disasters   Related Topics    Well Class     Links

Well Water Guides

About 20 percent of the population in New Mexico (or estimated 350,000 people) receives their water from a private well. The following are guides from various state agencies and other organizations to support water well owners:

Make Sure Your Well Water is Safe to Drink (209.6 KB)

Bernalillo County Well Guide (424.0 KB)

EPA Well Guide (1.6 MB)

Well Definitions (244.5 KB)

How to Keep a Well Log (235.2 KB)

Well System Materials (313.0 KB)

Guide to Private Wells for Realtors (1.1 MB)

Understanding Groundwater

The Hydrologic Cycle Water moves by many processes, including precipitation, evaporation, runoff, infiltration, plant uptake, percolation, and transpiration.

Although the amount of water in certain places fluctuates, the hydrologic cycle provides a reliable supply of water by annually replenishing or recharging surface water and groundwater sources. Water levels will go down at times when evaporation, transpiration, and human needs exceed precipitation. However, that is offset when replenishment such as rain and snow exceed removal.

To provide a reliable water source for all of your family’s needs, investing in a properly designed well system with a supply tank for adequate storage during dry times is recommended. A professional water well contractor can help make sure you have the proper amount of water storage.

The Hydrologic Cycle (234.2 KB)

Groundwater Protection (235.6 KB)

Groundwater and the Rural Homeowner, USGS (4.1 MB)

Learn More About Groundwater Hydrology

Aquifer Maps

Wells: Floods and Disasters

Floods, earthquakes and other disasters can damage or contaminate wells. Plugging or capping your well before a disaster can greatly reduce the potential for damage and contamination.

What to Do Before a Flood (174.7 KB)

If your well has been contaminated or you suspect that it may be contaminated, do not drink the water. You need to properly disinfect or treat the water and have it tested before drinking/using the water. Drink bottled water or clean water from another source until you are sure the water from your well is safe to drink again.

Drilled, driven or bored wells are best disinfected by a well or pump contractor, because it is difficult for the private owner to thoroughly disinfect these wells. Also working on a well after a natural disaster can be hazardous. Disasters can damage well piping and electrical systems. Unless you are highly skilled, electrical repairs are best conducted by a qualified electrician or well contractor.

What to Do After a Flood: Tips from EPA (381.8 KB)

Cleaning hand-dug wells: Tips from the World Health Organization (862.7 KB)

Learn how to find a reliable water well contractor:  Wellowner.org

Learn More About Disasters and Wells, CDC

Related Topics for Well Owners A typical septic system has four main components: a pipe from the home, a septic tank, a drain field, and the soil.

Septic Systems (240.6 KB)

Having a well drilled (236.6 KB)

Well permitting in Bernalillo County (39.2 KB)

Homeowner guide to septic tanks (498.4 KB)

Sealing Unused Wells (239.3 KB)

How to Hire a Water Well Contractor (239.3 KB)

Well Caps (234.7 KB)

Private Well Class

This free online course helps homeowners understand and care for their water well. Through ten weekly lessons and monthly webinar trainings, private well owners will learn the basics of managing and protecting their water source.  Sign Up!

Private Well Class

Homeowners in small communities and rural areas without a public water supply often lack appropriate understanding of best practices for managing, operating, and protecting their private well. In this new nationwide technical assistance and training initiative, funded by the Rural Community Assistance Partnership (RCAP), through a grant from the US Environmental Protection Agency, a step-by-step education framework has been developed to assist well owners and other stakeholders in understanding groundwater hydrology, well fundamentals, well care best practices, and finding assistance locally. It will also help well owners understand how to sample their well, how to interpret sample results, and what they can do to protect their well and source water from contamination.


Bernalillo County Well Ownership Information

CDC Environmental Public Health Tracking, Private Wells

EPA Water Resource Center


National Ground Water Association

NMED Water Fairs

Certified Labs