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 .
Total chlorine (TC) Total chlorine is simply a measure of combined chlorine and free available chlorine. This is the sum of the two types of chlorines in your swimming pools. The total chlorine should not be less than the free chlorine level.