Jump to main content

Ground Water & Drinking Water

Search the Frequent Questions for immediate answers to the most common questions asked by others or send a question to our customer care team.
  1. ViewedMost Popular Topics
  2. 51972How can I get my tap water tested?
  3. 45061Is bottled water safer than tap water?
  4. 27949How long can bottled water be stored?
  5. 25627How can I find the phone number for my local water company?
  6. 23377How can I find out if my water system is in compliance and providing safe drinking water, other than contacting the water company?
  1. Most Recent Topics
  2. 07/14/2015Can I check on the formula to compute LRAA for disinfectant byproducts? For instance, I am measuring every month, but for one particular month I do not have the data. What should the value for that month be? Will the LRAA for that month be same as the previous month since no value was measured?
  3. 07/13/2015In the Disinfection Profiling and Benchmarking Guidance Manual (EPA 815-R-99-013) there appears to be an error in units for E.coli and fecal indicators in Table 6-3 and Table 6-4 (pages 6-8 and 6-9). Units in the manual are cfu/100 mL. The analytical methods listed on page 6-13 report results as MPN/100 mL. Can you please confirm if units in Table 6-3 and 6-4 should be MPN/100 mL instead of cfu/100 mL?
  4. 07/13/2015I 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 creative monitoring plan that allows them to avoid MCL violations, thus avoiding public notification. What they are doing is when there are enough positive results to exceed the maximum of 5% TC+, they run a special sampling trip to normal sites in an effort to accumulate enough additional passing samples to bring them back below 5% and bringing them out of MCL violation. Is this allowed?
  5. 06/01/2015VOC Method 524.2: The method allows either a 5-mL sample volume or a 25-mL sample volume. Would a 10-mL volume be an allowed modification?
  6. 06/01/2015How can I order documents published by EPA’s Office of Water?
  1. My Recent Topics
  2. You do not currently have any "My Recent Topics" information. You will see your most recent viewed topics when you begin to browse the Knowledgebase

Jump to main content.