katlyn12345 katlyn12345
  • 05-04-2016
  • Physics
contestada

what is the acceptable level for chlorine

Respuesta :

Janessa3745
Janessa3745 Janessa3745
  • 05-04-2016
The EPA requires treated tap water to have a detectable level of chlorine to help prevent contamination. The allowable chlorine in drinking water (up to 4 parts per million) pose “no known or expected health risk [including] an adequate margin of safety.”
Answer Link

Otras preguntas

Reread the section titled "The Legend of the Lighthouse." What is the central idea of this section? *
Rob Janoff believes that technology should not be used too soon when designing. Why does he believe that?
A student inflates a balloon with helium then places it in the freezer. The student should expect
what is a lawyer based on their statistics​
Solve For X. what is the answer?
Evaluate the extent to which belief systems and practices impacted South and Southeast Asian societies in the 1200 - 1450 time period.
1. Label axes according to input/output. is the x-axis label. is the y-axis label. 2. Plot the ordered pairs of the independent/dependent variables. The ordered
I WILL GIVE EXTRA POINTS AND BRAINLIEST I JUST NEED SOMEONE TO ANSWER THIS QUESTIONS!!
4NH3(g) + 3O2(g) --> 2N2(g) + 6H2O(l) If oxygen gas is removed from the system, then the equilibrium will shift to the _______ and the amount of NH3 gas wil
Please answer fast! Which action is a part of the secretary of state's role in foreign policy? A. Ratifying treaties B. Making final decisions C. Representing