First, read the English article below.

Animal feedlots, buried fuel tanks, waste disposal and septic systems can all pollute groundwater.  Wells should be drilled in places where they can easily be reached for maintenance, and located at least 5 feet (1.5 meters) from building sites. Every states has regulations regarding where wells can be located as well as setbacks that you must follow. The well driller should be very familiar with these. Most wells are drilled out, but wells may also be dug or driven, if conditions warrant. Drilled wells may be bored with an auger or rotary tool, smashed out with a percussion cable or cut with high-pressure jets of water.  Wells are dug when there is sufficient water near the surface and no intervening dense rock. After a hole is made with shovels or power equipment, a casing is lowered into the aquifer, and the well is then sealed against contamination. Wells no deeper than 20 feet (6.1 m) are usually classified as 'Ground Water.'  As they are shallower than driven or drilled wells, they are more likely to go dry when drought lowers the water table. They are often contaminated with chloroform or E. Coli bacteria, so it is important to have them tested regularly.     Wells are driven by attaching a steel driving point to a stiff screen or perforated pipe, which is connected to solid pipe. An initial hole wider than the pipe is dug, then the assembly is pounded into the ground, with occasional turnings to keep the connections tight, until the point penetrates the aquifer. Wells can be hand-driven to depths of 30 feet (9 meters) and power-driven to depths of 50 feet (15 meters). Because the pipe used is of small diameter (1.25 to 12 inches, or 3 to 30 centimeters), multiple wells are often driven to provide sufficient water.     Augers can be either rotating buckets or continuous stems and can be turned either by hand or with power equipment. They work best in soils with enough clay to support the auger and don't work well in sandy soil or dense rock. Auger-bored wells can be drilled to depths of 15 to 20 feet... 

Now, please write a short abstract for it in Indonesian. Abstract:
Bor sumur di area yang bebas dari kemungkinan terjadinya kontaminasi. Tentukan cara yang akan digunakan untuk mengebor sumur. Selesaikan pembuatan sumur.