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. 1.16 0.24 0.53 0.56 0.62 1.16 0.49 0.35 0.64 0.29 0.41 0.78 0.24 0.43 0.36 0.3/95% (1) 0.25

Total Solids mg/L 146 112 124 118 112 115 123 125 120 130 123 146 123 128 119 500 10 9

Total Dissolved Solids mg/L 133 86 112 104 92 86 113 122 100 129 125 128 108 133 106 500 10 15

Aluminum mg/L 0.041 0.003 0.012 0.010 0.023 0.041 0.011 0.005 0.013 0.003 0.006 AE AE 0.007 0.005 0.05-0.2 0.001 0.012

Iron mg/L 0.3 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 0.2 0.3 0.1 0.054

Copper mg/L 0.009 0.003 0.005 0.009 0.005 0.004 0.004 0.003 0.006 0.005 0.007 0.006 0.003 0.005 0.006 1.3 (AL) 0.001 0.002

Magnesium mg/L 8.1 7.3 7.7 7.5 7.6 7.3 7.9 7.9 8.1 7.6 7.8 7.7 7.4 7.5 7.9 0.1 0.23

Calcium mg/L 27.9 24.1 26.2 25.5 24.1 25.2 26.8 26.8 27.9 26.1 26.4 27.2 25.4 25.8 27.4 0.1 1.1

Sodium mg/L 5.3 0.5 4.3 4.3 5.1 5.3 0.5 5.2 5.3 5.2 5.1 5.0 4.9 0.5 5.2 20 (2) 0.1 1.80

Potassium mg/L 1.1 1.0 1.0 1.0 1.0 1.0 1.1 1.1 1.1 1.0 1.0 1.1 1.0 1.0 1.0 0.1 0.04

Manganese mg/L 0.004 ND 0.001 0.001 0.002 0.004 <0.001 <0.001 0.002 <0.001 <0.001 0.001 <0.001 <0.001 <0.001 0.05 0.001 0.001

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 0.005 ND 0.003 0.002 0.003 AE 0.002 <0.001 0.005 0.003 0.005 0.003 0.002 0.003 0.004 5 0.001 0.00

Silica mg/L 2.1 1.6 1.9 2.0 2.1 2.1 2.0 1.7 1.6 1.8 1.9 1.8 1.6 1.9 2.0 0.4 0.2

Sulfate mg/L 28.4 15.2 17.4 16.5 16.1 16.1 28.4 15.4 16.1 15.8 18.4 18.2 16.9 15.5 15.2 3.6

Chloride mg/L 9.2 7.5 8.4 8.7 7.9 9.0 8.1 9.0 8.9 8.2 7.5 9.2 8.5 7.6 8.2 250 5 0.6

Phosphorus mg/L ND ND 0.00 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05

Free Carbon Dioxide mg/L 1.8 0.7 1.2 1.3 1.8 1.7 1.0 1.1 1.3 0.9 0.8 1.1 0.7 1.0 1.1 0.3

Total Hardness (3), (4), (5) mg/L 110 88 99 102 102 104 104 110 98 90 88 96 88 104 104 7

Total Alkalinity (3) mg/L 90 82 86 86 82 86 84 88 90 88 86 86 84 84 82 2

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

Bi-Carbonate Alkalinity (3) mg/L 89 81 84 85 81 85 82 87 89 86 84 85 82 83 81 2

Non-Carbonate Hardness (3) mg/L 22 2 14 16 20 18 20 22 8 2 2 10 4 20 22 8

Chemical Oxygen Demand mg/L 11.4 2.4 5.9 3.2 5.5 11.4 8.7 9.1 9.2 7.6 2.7 2.4 3.5 3.4 3.7 2 3.1

Dissolved Oxygen mg/L 13.5 8.2 10.5 11.5 13.5 13.0 11.8 11.8 9.7 9.4 8.2 8.2 8.7 9.3 10.7 1.8

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 0.39 0.19 0.29 0.34 0.34 0.32 0.39 0.34 0.34 0.29 0.20 0.22 0.19 0.25 0.23 10 10 0.1 0.07

Fluoride mg/L 0.10 0.07 0.09 0.09 0.09 0.09 0.07 0.09 0.09 0.09 0.10 0.09 0.08 0.09 0.08 4 0.5 0.01

pH 8.40 7.96 8.18 8.10 7.96 8.00 8.20 8.20 8.14 8.30 8.30 8.20 8.40 8.20 8.15 6.5-8.5 6.5-8.5 0.12

Specific Conductance @25 °C. \mu moles 217 131 187 172 186 181 217 213 189 166 131 209 196 204 176 24

Temperature °C 23.0 4.4 16.1 4.4 11.3 11.2 13.5 15.3 17.8 18.4 23.0 22.7 21.2 18.3 16.6 5.4

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

6.4 5.1 5.8 GPG