Fall 2019 Water Hardness Project Data Sample Hy Vee drinking water DMACC Filtered water station Great value distilled water 0.85 Average Titration volume AV, ml ppm 6.9 7.80 64.1 3.3 267.4 Sam's Choice purified water Hot tub water 1.20 12.1 6.40 51.5 Fertilized water 8.60 69.9 Clive tap water 9.30 78.5 Creek water 38.90 328.2 Urbandale tap water 7.40 62.4 Fountain water 9.50 80.2 Smart water 2.00 16.9 Flavored water 12.40 104.7 Tap 1 from lab 7.55 60.6 tap 2 from lab 5.45 43.6 Distilled water 2.20 176.4 Spring water 26.75 214.4 Alkaline water 0.50 4.0 Easter 1 water 7.00 57.0 Toilet water 7.35 62.1 Pool water 31.75 266.2 Smart water 0.90 7.6 Shower water 6.90 57.9 Tap water 7.05 59.5 Sooda water 5.60 47.6 Bottled water 2.3 193.7 Tapwater 3.20 27 Water from DMACC rest room 4.45 37.5 Bathtub water 3.00 25.3 Tap water 4.40 3711 Park water 19.3 1540 Fall 2019- Water Hardness Project Bata Sample Average Titration volume AV, mL ppm HyVee drinking water DMACC Filtered water static 0.85 6.9 7.80 64.1 Great value distilled water 3.3 267.4 Sam's Choice purified water 120 121 Hot tub water 6.40 515 Fertilized water 8.60 69.9 Clive tap water 9.30 78.5 Creek water 38.90 328.2 Urbandale tap water 7.40 62.4 Fountain water 9.50 80.2 Smart water 2.00 16.9 Flavored water 12:40 104.7 Tap 1 from lab 7.55 60.6 tap 2 from lab 5.45 43.6 Distilled water 2.20 176.4 Spring water 26.75 214.4 Alkaline water 0.50 4.0 Easter 1 water 7.00 57.0 Toilet water 7.35 62.1 Pool water 31.75 266.2 Smart water 0.90 7.6 Shower water 6.90 57.9 Tap water 7.05 59.5 Sooda water 5.60 47.6 Bottled water 2.3 193.7 Tap water 3.20 27 Water from DMACC rest roo 4.45 37,5 Bathtub water 3.00 25.3 Tap water 4.40 37.1 Park water 19.2 1540 V(used 0.5M EDTA) For all other, od 0.01M