1 If you were born in the United States: Normally you were a U.S. citizen at birth.1 (Including, in most cases, the Commonwealth of Puerto Rico, the territories of Guam and the U.S. Virgin Islands, and after November 4, 1986, the Commonwealth of the Northern Mariana Islands),  If you were born abroad to TWO U.S. citizens:
Chloramines are a type of combined chlorine that form in water and then off gas into the air above the water. Most city, county, and state health departments limit the amount of combined chlorine in the water to 0.4 ppm or less. Chloramines can build up in the water, which means they can build up in the air if there is not enough fresh air surrounding pools and other places people swim in chlorinated water .
Combined Chlorine = Total Chlorine - Free Chlorine. 2.3 ppm (TC) measured from test kit - 1.5 ppm (FC) measured from test kit = 0.8 ppm CC. If the water has no chloramines, the answer to the subtraction will be zero (0) and a shock treatment is. not needed. This is a desirable level. After determining the level of combined chlorine in the pool water, the pool operator must determine the breakpoint chlorination for that value. The breakpoint chlorination value is 10 times the combined chlorine (CC) level.