Hello Mr. Richardson:
Sometimes just submitting the US EPA’s water quality standards should be enough of an interpretation, without you having to go out on a limb with your own interp.
Certainly that should be the case for the majority of contaminants. However, the interpretation of other parameters, such as odour, hardness, and taste can be much more subjective. For example, whereas nobody wants lead, and there an MCL for lead, some people like hard water (like me and home-brewers) and some like soft water.
I would recommend that you simply put together a table of water standards and include that with your water analysis results. (Remember the POWT facilities have different standards than wells).
Just my thoughts…
Caoimhín P. Connell
Forensic Industrial Hygienist
(The opinions expressed here are exclusively my personal opinions and do not necessarily reflect my professional opinion, opinion of my employer, agency, peers, or professional affiliates. The above post is for information only and does not reflect professional advice and is not intended to supercede the professional advice of others.)