(However, if the geological conditions are especially difficult or access is extremely limited, drilling can cost $30-$50 a foot or more.) For example, the sustainable Arizona homesteaders at ByExample.com report paying $6,750 to have well drilled 280' deep, or about $24/foot.
A second lieutenant (grade O-1) is usually promoted to first lieutenant (grade O-2) after 18 months in the Army or 24 months in the Air Force and Marine Corps.The difference between the two ranks is slight, primarily being experience and higher pay. second lieutenant (grade O-1) is usually promoted to first lieutenant (grade O-2) after 18 months in the Army or 24 months in the Air Force and Marine Corps.
As an O-2, a lieutenant junior grade had a starting salary of $3,314.10 per month in 2013. After two years in the Navy, basic pay increased to $3,774.30 per month. With three years of service, monthly pay was $4,347, and with four years, it increased to $4,493.70.