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Are chloramines harmful to fish?
Are children or adults exposed to too much fluoride?
Are there public water systems that exceed the drinking water standard for fluoride? Why? What do they do about it?
Are there limits to the amount of sediment or sand allowed in drinking water? If yes, is there a maximum particle size?
Are public water systems required to monitor for sodium?
Are drinking water additives, such as chemicals used for fluoridation and coagulation, regulated by the Safe Drinking Water Act?
Has EPA established a maximum contaminant level (MCL) for sulfate in drinking water?
Does EPA plan to revise the fluoride drinking water standard?
Does the Safe Drinking Water Act regulate radon?
Can Cryptosporidium pass through the skin and make you sick?
Doesn't fluoride occur naturally in water? What if my water system has naturally-occurring fluoride above 4.0 mg/L?
How does arsenic get into drinking water?
How can perchlorate be removed if it gets in my drinking water?
How are advised standards for Secondary Standards (specifically TDS) determined?
How can I remove MTBE from my water?
How will I know if I have perchlorate in my drinking water?
How does fluoride get into tap water?
How is radon in my drinking water related to radon in indoor air?
I am concerned about cadmium in my drinking water. How can cadmium be released into the environment?
I am seeking clarification about TCR monitoring. I reside in an area with a large public water utility serving about 2 million residents. We live in a place that commonly has water quality problems and TC+ results. Recently, the utility began using a crea
I have heard that EPA regulations regarding the amount of fluoride added to drinking water are changing. Could you expound on how these changes are taking shape?
I am concerned that the salt used for highway deicing is contaminating my well water supply. Can these chemicals affect the quality of my drinking water?
I don't want fluoride in my community's water supply. We were told that once it was voted in on the municipal level, EPA does not allow for its removal. Is this true?
I found the language verbatim on both your website & the CDC's, "Yes, if you and your child are among the 196 million Americans who receive their water from an optimally fluoridated community water system (0.7 to 1.2 milligrams per liter) and you follow.
Is my water system supplying fluoridated drinking water?
Is my child getting an appropriate amount of fluoride from drinking water and tooth brushing?
I have read that it is possible to treat drinking water with uranium contamination to levels at or below 20 µg/L. I have also read that EPA proposed an MCL of 20 µg/L in 1991. Why is uranium regulated at 30 µg/L and not 20 µg/L?
In addition to water, what are other specific sources of fluoride?
My state has a maximum contaminant level (MCL) of 0.0005 mg/L for chlordane in drinking water, but the federal standard is 0.002 mg/L. Why does the state have a different standard?
Is there an ongoing assessment of the nitrate NPDWR standard? The March 2010 6-year review (http://water.epa.gov/lawsregs/rulesregs/regulatingcontaminants/sixyearreview/second_review/index.cfm#summary) lists nitrate as either having a health effects asses