When you need water testing for your home or business in Preston CT, trust your needs to Eastern Drill Co. We are the industry’s leading provider of high quality water and well water testing and maintenance services. We provide accurate and reliable tests for private well water purity. Are you ready for the peace of mind that comes from knowing that your well water is potable? If the answer is yes, call Eastern Drill Co. Our experts service individual private wells, as well as large private wa