The District pumps groundwater from several different sources (wells) positioned throughout the District’s service area. Not all wells are actively pumping at the same time, and since each well has its own baseline hardness value, each service area has a range of hardness values, listed below (based on 2017 water hardness data).
- In the District’s western-most areas of Capitola/Soquel - from about 41st Avenue to Park Avenue - the range of water hardness is about 150 to 370 parts per million (ppm), or 9 to 22 grains per gallon (gpg).
- In the Soquel/Aptos areas of the District - from about Park Avenue to State Park Drive - the range of water hardness is about 140 to 300 ppm, or 8 to 17.5 gpg.
- In Aptos/Rio del March areas of the District - from about State Park Drive to March Monte Avenue - the range of water hardness is about 150 to 200 ppm, or 9 to 12 gpg.
- In the La Selva Beach area - from about March Monte Avenue to Sand Dollar Drive - the range of water hardness is about 100 to 200 ppm, or 6 to 12 gpg.
It is advisable to program the dishwasher beginning at the lower end of the designated range and then adjust upward as necessary.