Yearly Summary Monthly Mineral Analyses Annual Averages

Parameter Units Max. Min. Avg. 01/16/2024 02/13/2024 03/12/2024 04/16/2024 05/14/2024 06/11/2024 07/09/2024 08/13/2024 09/10/2024 10/08/2024 11/05/2024 12/10/2024 Sample Dates

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MCL Sec.Std RL STDEV

Turbidity N.T.U. 1.50 0.05 0.27 0.08 1.50 0.12 0.18 0.08 0.20 0.26 0.35 0.05 0.10 0.09 0.24 0.3/95% (1) 0.40

Total Solids mg/L 158 125 140 135 130 129 139 158 148 148 125 134 143 153 142 500 10 10

Total Dissolved Solids mg/L 153 101 126 109 111 106 101 133 110 143 142 153 132 148 128 500 10 18

Aluminum mg/L 0.118 0.023 0.054 0.091 0.030 0.052 0.037 0.023 0.041 0.063 0.057 0.044 0.046 0.050 0.118 0.05-0.2 0.001 0.027

Iron mg/L 0.4 0.2 0.2 0.2 0.2 0.3 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.4 0.3 0.1 0.062

Copper mg/L 0.032 ND 0.004 0.001 < 0.001 0.001 0.001 0.001 0.001 0.001 0.001 < 0.001 < 0.001 0.002 0.032 1.3 (AL) 0.001 0.010

Magnesium mg/L 8.2 7.5 7.8 7.9 7.5 8.0 7.9 8.1 8.2 7.7 7.7 7.8 7.5 7.6 8.1 0.1 0.24

Calcium mg/L 29.3 23.3 27.2 27.8 23.3 27.9 27.2 29.3 28.2 26.2 27.0 27.3 26.6 26.7 28.9 0.1 1.6

Sodium mg/L 6.1 0.5 4.6 5.0 5.2 5.2 0.5 6.1 5.7 5.5 5.7 5.2 5.1 0.5 5.7 20 (2) 1.95

Potassium mg/L 1.2 1.0 1.1 1.1 1.0 1.1 1.1 1.2 1.1 1.0 1.2 1.1 1.1 1.0 1.1 0.1 0.06

Manganese mg/L 0.005 ND 0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.001 <0.001 <0.001 0.001 0.005 0.05 0.001 0.002

Lead mg/L ND ND 0.000 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.015 (AL) 0.001

Zinc mg/L 0.002 ND 0.000 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.001 0.002 5 0.001 0.00

Silica mg/L 3.6 1.5 2.2 1.5 2.5 2.4 1.9 1.5 2.2 1.7 3.6 1.9 2.1 2.2 3.2 0.4 0.6

Sulfate mg/L 38.3 24.1 30.5 36.0 28.6 32.8 38.3 35.5 27.2 27.6 31.9 29.5 27.2 24.1 27.6 4.3

Chloride mg/L 12.2 8.8 10.4 11.6 9.3 10.0 8.8 12.2 11.3 10.5 11.2 10.8 10.2 9.5 9.5 250 5

Phosphorus mg/L 0.61 0.38 0.47 0.39 0.47 0.44 0.41 0.45 0.49 0.51 0.38 0.46 0.40 0.61 0.58 0.05 0.07

Free Carbon Dioxide mg/L 18.1 6.6 9.6 11.8 7.3 8.3 7.3 11.7 8.7 7.5 11.7 8.6 6.6 7.2 18.1 3.3

Total Hardness (3), (4), (5) mg/L 114 90 102 104 106 104 112 114 106 96 90 102 92 94 100 8

Total Alkalinity (3) mg/L 76 64 70 68 70 64 64 74 76 72 72 70 72 72 64 4

Carbonate Alkalinity (3) mg/L 10 0 1 0 0 0 10 0 0 0 0 0 0 0 0 3

Bi-Carbonate Alkalinity (3) mg/L 76 46 68 68 70 64 46 74 76 72 72 70 72 72 64 8

Non-Carbonate Hardness (3) mg/L 48 18 32 36 36 40 48 40 30 24 18 32 20 22 36 9

Chemical Oxygen Demand mg/L 8.7 ND 4.2 <2 5.3 3.6 6.4 5.8 8.7 7.7 2.6 2.2 2.4 2.8 2.3 2 2.4

Dissolved Oxygen mg/L 16.9 8.4 11.4 16.9 15.4 15.8 10.6 11.0 9.0 9.6 8.4 9.2 9.1 9.7 12.5 3.0

Nitrite Nitrogen mg/L ND ND 0.0 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 1 0.1

Nitrate Nitrogen mg/L 0.48 0.17 0.29 0.46 0.31 0.28 0.38 0.48 0.33 0.21 0.28 0.17 0.17 0.19 0.26 10 10 0.1 0.11

Fluoride mg/L 0.82 0.39 0.68 0.57 0.66 0.70 0.53 0.72 0.78 0.72 0.82 0.81 0.74 0.67 0.39 4 0.5 0.13

pH 7.34 6.85 7.17 7.06 7.28 7.19 7.10 7.10 7.24 7.28 7.09 7.21 7.34 7.30 6.85 6.5-8.5 6.5-8.5 0.14

Specific Conductance @25 °C. μm/hos 231 151 199 197 197 183 231 218 203 166 151 218 208 214 200 23

Temperature °C 22.6 2.9 13.5 2.9 8.4 5.1 11.3 14.3 17.7 22.0 22.6 20.0 18.6 14.2 4.6 7.0

Legend Notes:

MCL: Maximum Contaminant Level Sec.Std: Secondary Standard NTU: Nephelometric Turbidity Unit mg/L: Milligram Per Liter (ppm) AL: Action Level RL: Reporting Limit < : Less than AE: Analytical Error IN: Invalid Sample (1) Turbidity must not exceed 0.3 NTU in 95% of daily samples in any month (2) EPA Guidance Level (3) As Calcium Carbonate (4) By Titration (5) Tap Water Hardness in Grains per Gallon multiply value by 0.058 (Grains/Gallon)/(mg/L) --> (6) Reported results are below the low calibration standard but above the instrument detection limit. NA = Not available ND = Not detected above the reporting limit Maximum Minimum Average

6.6 5.2 5.9 GPG