The US uses a different scale from the UK. A bit like measuring tank volume in gallons and litres. The US uses nitrate -N while the the UK uses nitrate-NO3. And our test kits use nitrate-NO3.
10 ppm nitrate-N (USA) = 44.27 ppm nitrate-NO3 (UK). And if the UK upper limit was measured by the same scale as the US it would be 11.29. So in reality the US legal limit is only a tiny bit less than the UK.
@JennySolano that 5 ppm for your nitrate - is that what your water provider says or what your test kit says?
@Leemw87 I have just found where Yorkshire Water hide their water quality report! Remember the page where you found your hardness? It's lower down on the same page. If you enter your postcode here
www.yorkshirewater.com
and look below the hardness info, you'll find what their expensive lab equipment says your nitrate is.
10 ppm nitrate-N (USA) = 44.27 ppm nitrate-NO3 (UK). And if the UK upper limit was measured by the same scale as the US it would be 11.29. So in reality the US legal limit is only a tiny bit less than the UK.
@JennySolano that 5 ppm for your nitrate - is that what your water provider says or what your test kit says?
@Leemw87 I have just found where Yorkshire Water hide their water quality report! Remember the page where you found your hardness? It's lower down on the same page. If you enter your postcode here
Check your water hardness
Do you have hard water? Find out more about the water hardness in your area with Yorkshire Water. Water hardness is the measure of the concentration of calcium and magnesium salts in your water - two of the essential minerals that your body needs.







