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Evaluation of Groundwater Supply Alternatives Within Bernal Subbasin
City of Pleasanton
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Evaluation of Groundwater Supply Alternatives Within Bernal Subbasin
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4/14/2026 10:07:54 AM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
4/21/2026
DESTRUCT DATE
15Y
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Zone 7 <br />Hansen Park Test Well <br />Water Quality Summary Table <br />CATIONS <br />Calcium mg/L 0.10 200.7 83 <br />Magnesium mg/L 0.050 200.7 49 <br />Potassium mg/L 1.0 200.7 2.1 <br />Sodium mg/L 0.50 200.7 46 <br />Hardness as CaCO3 mg/L 0.50 Calc 410 <br />ANIONS <br />Chloride (Cl) mg/L 0.50 300.0 250/5002 79 <br />Fluoride mg/L 0.050 300.0 21 0.12 <br />Nitrate (as NO3) mg/L 0.44 300.0 451 12 <br />Nitrite (as NO2) mg/L 0.20 300.0 3.281 ND <br />Nitrate/Nitrite (as N) mg/L 0.10 353.2 101 3 <br />Sulfate (as SO4) mg/L 1.0 300.0 250/5002 55 <br />Total Alkalinity mg/L 4.1 SM 2320B <br />320 <br />PHYSICAL PARAMETERS <br />Color (A.P.H.A) Color Units 1.0 SM 2120B 152 1 <br />pH pH units 0.05 150.1 6.5/8.54 7.725 <br />Methylene Blue Active Substance mg/L 0.20 SM 5540C 0.52 ND <br />Electrical Conductivity @ 25°C μmhos/cm 1.0 SM 2510 B-1997 900/1,6002 906 <br />Total Dissolved Solids (TDS) mg/L 33 SM 2540C 500/1,0002 5425 <br />Turbidity NTU 0.10 180.1 52 2.1 <br />INORGANICS <br />Aluminum mg/L 0.050 200.7 11/0.23 0.44 <br />Aluminum (Dissolved)mg/L 0.050 200.7 ND <br />Antimony mg/L 0.0020 200.8 0.0061 ND <br />Arsenic mg/L 0.0020 200.8 0.0101 0.0011 J <br />Arsenic (Dissolved)mg/L 0.010 200.8 0.00092 J <br />Barium mg/L 0.010 200.7 11 0.26 <br />Beryllium mg/L 0.01 200.7 0.0041 ND <br />Boron mg/L 0.10 200.7 13 0.37 <br />Cadmium mg/L 0.001 200.8 0.0051 ND <br />Chromium (Total) mg/L .010 200.7 0.0501 0.0054 J <br />Chromium (Dissolved)mg/L 0.01 200.7 0.0026 J <br />Hexavalent Chromium μg/L 0.20 218.6 101 4.05 <br />Copper mg/L 0.010 200.7 1.02 0.0018 J <br />Iron mg/L 0.05 200.7 0.32 0.54 <br />Iron (Dissolved)mg/L 0.050 200.7 ND <br />Lead mg/L 0.0010 200.8 0.0153 0.00045 J <br />Manganese mg/L 0.010 200.7 0.0502 0.045 <br />Manganese (Dissolved)mg/L 0.010 200.7 0.035 <br />Mercury mg/L 0.0002 245.1 0.0021 0.00041 <br />Nickel mg/L 0.010 200.7 0.11 0.0038 J <br />Selenium mg/L 0.0020 200.8 0.0501 0.0021 <br />Silicon as Si mg/L 0.10 200.7 11 <br />Silver mg/L 0.010 200.7 0.12 ND <br />Thallium mg/L 0.0010 200.8 0.0021 ND <br />Vanadium mg/L 0.0028 200.7 0.053 0.0029 J <br />Zinc mg/L 0.050 200.7 52 ND <br />Title 22 <br />6/2/2025MCLANALYTE UNITS <br />REPORTING <br />LIMIT METHOD
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