Hi Gary, Our 2020 Water Quality Report provides our data for 2019. Hardness (in grains per gallon) averaged 9.7 and (as CaCO3) averaged 166. You can find our Water Quality Reports at hwd.com/water-quality-reports. If you need more recent information, please call our water quality staff at 619-667-6248 or 619-443-1031.
Hi Gary, The best place to look for our water hardness is in our Annual Water Quality Report which we produce here: https://hwd.com/wp-content/uploads/2020/06/2020-Water-Quality-Report-English.pdf We made the report easy to follow. Feel free to let us know if you have any additional questions and we would be happy to help. Take care, Vince Dambrose Helix Water District
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