D.F. Well Drilling Co.
D.F. Well Drilling Co. has stood for quality and service for over seven decades, providing the best our industry has to offer to both the building industry and private community for industrial, municipal and residential water supply.
At D.F. Well Drilling Co. all drilling is done with state of the art machinery and techniques. Both single and dual rotary drilling equipment are available to insure that we have the right tool to drill your site in the least amount of time and at the lowest possible cost.
Our water well drillers are licensed professionals who provide knowledgeable, safe and courteous service to our residential and commercial clientele. Every well is cased in steel, grouted and sealed against surface contamination in compliance with stringent New Jersey Department of Environmental Protection (NJDEP) and local health agencies regulations. All major decisions regarding well depths and issues that will affect the cost and performance of your installation are openly discussed with our clients before, during and immediately following the drilling operation. We firmly believe that an informed client is the best means to total satisfaction and an important beginning to the next project.
Because it is important to properly match the well pump to the well, our firm provides both the well installation and a properly designed pumping system. The fact is, no two wells perform exactly alike. Everyone knows that wells come in a great variety of depths, but just as significant as its depth, is the storage capacity, sustainable well yield and static water level. All of these variable measurements have a significant impact upon a well's long term ability to provide a reliable source of potable groundwater for your home, municipal or industrial supply requirements. More can be learned about a future supply well's performance during the drilling process than at any other time following its installation. Just knowing the depths and changes in drilling rate and well yield during the advancement of the borehole permits our staff of professionals to evaluate a best strategy for well development and the ultimate design for a, best fit, pumping system. Well pumps come in an incredible number of sizes (horse power as well as dimensions). Selecting the right pump and pump setting (its installed depth in the well) for each application is essential to a long term and reliable installation. A pump that is too large costs more to buy, is inefficient to operate and can be damaged by short term start/stop intervals and over pumping of the well, a condition that can lead to overheating and water clarity issues.
We make sure you get the right size pump and pressure tank for your installation. Along with our pump and tank design recommendation, you get a complete proposal and a firm price. It makes sense to have your pump installation customized to your well and all components are top quality. Accordingly, your installation carries a one year warranty from date of installation.
Contract Proposal
Our proposal will itemize for you drilling cost per foot, casing per foot and cost of other materials (such as drive shoes, screens, seals, pitless adapters, state and local permits). While we provide budgetary costs for the pumping system, it is upon completion of the well that we are able to quote on pumping equipment and delivery system ideally suited to your application and the performance characteristics of the newly installed well.
How DF drills and cases your well
Our equipment is mounted on rubber tired over the road trucks. All rigs are equipped with leveling jacks with large ground pads. This generally permits us to set up for drilling without excavation on fairly uneven ground. The drilling tower is transported in a horizontal position over the road. Once the rig has been located over the hole, the tower is hydraulically raised into a vertical or its drilling configuration. Since the drill tools are pre-assembled on the rig or it's tender, we are generally ready to drill within minutes of our arrival on site. As the drill tools are advanced into the ground, rock cuttings and water when encountered are continuously brought to the surface by compressed air. As a result both you and the driller will know immediately when a water source has been encountered. The driller will continually monitor and occasionally measure this flow as the drilling operation progresses in order to properly evaluate a logical stopping point.
Sealing your well against contamination
By both State and local regulation your well must be sealed against surface contamination. Accordingly, an initial large borehole is drilled to accept a steel casing. On residential wells this casing is traditionally six inches in diameter. For some commercial, industrial and municipal applications larger and multiple well casings may be required. As a generality the borehole into which a permanent casing is to be installed must be drilled a minimum of four inches in diameter greater than the diameter of the casing to be installed.
Once the casing has been installed into the borehole, it is then pressure-tremie grouted in place with a specified cement gout mix so as to establish an effective seal from the bottom of the casing to the ground surface. Once this annular grout column has hydrated, it prevents surface and/or near surface contaminants from entering the new well. The depth to which this initial surface casing is installed is also a matter of State regulation. It must be installed to a minimal depth of fifty (50) feet below ground surface or must be installed a minimum of twenty (20) feet into competent bedrock, whichever is deeper. There are a number of other criterion effecting the use and minimal acceptable depths of surface casings associated with the wells proximity to other property improvements (i.e. septic fields etc.). We will assist our clients through these issues during the well permitting process in order to make certain the final installation meets all NJDEP and local health and construction standards.
Selecting the right pump and tank for your well
Your well is not complete just because you have a hole in the ground capable of producing groundwater. For you to use this water, it must be brought to the surface and into your home. This requires a pump and suitable piping and a pressure holding tank for final distribution.
Modern water system controls consist of more than an elevated water tank. They typically consist of a pneumatic pressure tank with a pre-charged air chamber. A pressure regulator and switch will sense when the water pressure in the tank drops below a pre-set level (normally 40 to 50 psi) and turns the well pump on, when pressure in the air chamber reaches the pre-set maximum system pressure (normally 50 to 60 psi) the switch turns the well pump off.
Other more sophisticated pumping systems are available including constant pressure variable speed pumps and controls and high storage systems for low well yield applications. We offer full line of products and services to accommodate all of our clients water supply needs.
There's a ground water heat pump in your future
Significant savings in your heating and cooling bills is a tangible reward for switching from your present method of heating and cooling to a groundwater source heat pump installation. While you may have never heard of a geothermal heat pump, its growing application throughout the world and more recently, here in the USA is a testament to the effectiveness of this efficient and affordable alternative to more traditional means of providing heating and cooling to your home and/or place of business.
For related information please see our Geothermal Engineering page.
DF also drills industrial, municipal and monitoring wells
DF Well Drilling is also very active in the drilling of wells for industrial plants and municipalities. These wells are often deep, large diameter holes designed to supply the large volumes required by industry and communities. Special procedures are sometimes required, such as drilling with dual rotary equipment, mud or foam. Some holes, especially those in alluvial deposits, often require gravel packed screens. Because of our vast experience in almost every imaginable drilling condition, we are prepared to handle a wide variety of well designs and means of developing them into a serviceable installation. Our know-how assures you of the best well possible for the prevailing geological conditions on your site.
DF Well Drilling also has considerable experience in providing "monitoring" wells that are used to keep tabs on seepage from landfills or industrial areas and to check on contamination of aquifers or underground water supplies. For related information please see our B&B Drilling page.