If you have a private water well, maintenance and repair is up to you. There are a few basic preventative maintenance steps that could help you avoid well malfunction: Get an annual well maintenance checkup from a licensed or certified well driller or pump installer. Test your water well with a certified testing lab annually or any time there is a change in color, odor or taste. Check the well cover or well cap on top of the casing to ensure it is in good repair. Contact Upper Trinity Groundwater Conservation District at 817-523-5200 or visit the website at www.uppertrinitygcd.com.