From my research the EPA limit for chlorine in drinming water is 4mg/L or 4parts per million. I want to know EPA's standard for the maximum amount of drinking water that can be consumed and over what time period if the water is at the maximum alowable level?
2007-04-06 07:38:19 · 7 answers · asked by jungle867 2 in Environment
Chlorine (as Cl2) MRDLG=4 MRDL=4.0
The notes that go with the EPA 4 mg/L limit are
Definitions:
Maximum Contaminant Level (MCL) - The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to MCLGs as feasible using the best available treatment technology and taking cost into consideration. MCLs are enforceable standards.
Maximum Contaminant Level Goal (MCLG) - The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety and are non-enforceable public health goals.
Maximum Residual Disinfectant Level (MRDL) - The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Residual Disinfectant Level Goal (MRDLG) - The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.
The more detailed regulations can be found at the second two references.
2007-04-06 09:58:34 · answer #1 · answered by Peter Boiter Woods 7 · 0⤊ 1⤋
The minimum required by the EPA is 0.2ppm. It alll depends on the size of the system, how far you are form the point of entry (the water plant) and the conditions of the water mains leading to your house as to how much chlorine your individual house has. All public systems are required to be monitored (your state should have a public listing) however not EVERY house can be checked. Any store that has pool supplies will have chlorine test kits so you can check to varify you have at least 0.2ppm but not more than 4ppm. Best place to check woud be a bathtub, let the water run for 5 min (cold water) then check per chlorine strip instructions. If you have any filtration/softener you will need to bypass these to get an accurate reading of what is being provided.
2014-10-20 06:42:37 · answer #2 · answered by Stephen 1 · 0⤊ 0⤋
Chlorine is used to handle water to kill micro organism and different dwelling organisms. however the doses are low, there continues to be adequate to sniff or style. they say that, together as working water from the faucet will enable the chlorine to burn up, i understand for a fact that there continues to be adequate chlorine interior the water to discover it actually employing chemical detectors. As for its influence on you -- that's like flouridation - some think of that's undesirable, others do no longer. seem it up on Google.
2016-10-21 05:11:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
And if they start at 4 ppm how much is it by the time u get it at your house and what is it when u drink it. I think the target is not to go below 2 ppm but it has been a long time.
2007-04-06 08:10:31 · answer #4 · answered by JOHNNIE B 7 · 0⤊ 1⤋
You're not going to find that. They probably assume an average daily intake to set that level. It's also a liability issue to set something like that.
If you want to know toxicity levels you would have to look at a toxicology reference book.
2007-04-06 07:42:56 · answer #5 · answered by Matthew L 4 · 0⤊ 0⤋
Try the EPA website.
Better just to buy a filter.
2007-04-06 07:40:27 · answer #6 · answered by Anonymous · 0⤊ 2⤋
http://www.science.com
2007-04-06 07:43:57 · answer #7 · answered by Anonymous · 0⤊ 3⤋