Ground-Water Information Center Water Quality Report Site Name: CITY OF BELGRADE WELL 2  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0642 / 90850 Sample Date: 5/6/2009 Location (TRS): 01S 04E 01 DCBCD Agency/Sampler: MBMG / GITC Latitude/Longitude: 45° 46' 29" N 111° 10' 22" W Field Number: GLWQD-131 Datum: NAD83 Lab Date: 6/23/2009 Altitude: 4459 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 6000 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM, 112SNGR Total Depth (ft): 185 USGS 7.5' Quad: BELGRADE SWL-MP (ft): NR PWS Id: 00136003 Depth Water Enters (ft): 160 Project: PWSINV, GLWQDPHARM, GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 71.700 3.578 Bicarbonate (HCO3) 260.800 4.275 Magnesium (Mg) 17.100 1.407 Carbonate (CO3) 0.000 0.000 Sodium (Na) 5.370 0.234 Chloride (Cl) 2.620 0.074 Potassium (K) 3.410 0.087 Sulfate (SO4) 24.890 0.518 Iron (Fe) <0.043 0.000 Nitrate (as N) 1.08 P 0.077 Manganese (Mn) <0.031 0.000 Fluoride (F) 0.080 0.004 Silica (SiO2) 25.400 Orthophosphate (as P) <0.05 0.000 Total Cations 5.312 Total Anions 4.948 Trace Element Results (µg/L) Aluminum (Al): <7.60 Cesium (Cs): <0.04 Molybdenum (Mo): 0.285 Strontium (Sr): 230.000 Antimony (Sb): <0.05 Chromium (Cr): 0.048 Nickel (Ni): <0.10 Thallium (Tl): <0.03 Arsenic (As): 1.360 Cobalt (Co): <0.10 Niobium (Nb): <0.04 Thorium (Th): <0.02 Barium (Ba): 109.000 Copper (Cu): 0.602 Neodymium (Nd): <0.05 Tin (Sn): <0.04 Beryllium (Be): <0.20 Gallium (Ga): <0.05 Palladium (Pd): <0.10 Titanium (Ti): 0.209 Boron (B): 7.450 Lanthanum (La): <0.02 Praseodymium (Pr): <0.02 Tungsten (W): 0.062 Bromide (Br): <50 Lead (Pb): <0.15 Rubidium (Rb): 1.710 Uranium (U): 4.430 Cadmium (Cd): <0.05 Lithium (Li): 2.950 Silver (Ag): <0.04 Vanadium (V): 2.220 Cerium (Ce): <0.02 Mercury (Hg): NR Selenium (Se): 0.241 Zinc (Zn): <0.90 Zirconium (Zr): <0.05 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 278.37 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 410.8 Hardness as CaCO3: 249.42 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 388 Field Alkalinity as CaCO3 (mg/L): 214 PCP (µg/L): NR Lab Conductivity (µmhos): 414 Alkalinity as CaCO3 (mg/L): 214.06 Phosphorus, TD (mg/L): 0.043 Field pH: 7.42 Ryznar Stability Index: 6.458 Field Nitrate (mg/L): NR Lab pH: 8.17 Sodium Adsorption Ratio: 0.1378 Field Dissolved O2 (mg/L): 6.910 Water Temp (°C): 10.7 Langlier Saturation Index: 0.856 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): -2.7 Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): NR Lab, Dissolved Organic Carbon (mg/L): 0.300 Total Kjeldahl Nitrogen (mg/L as N) NR Lab, Dissolved Inorganic Carbon (mg/L): NR Lab, Total Organic Carbon (mg/L): NR Total Nitrogen (mg/L as N) NR Acidity to 4.5 (mg/L CaCO3) NR Acidity to 8.3 (mg/L CaCO3) NR As(III) (ug/L) NR As(V) (ug/L) NR Total Susp Solids (mg/L) NR Notes Sample Condition: Field Remarks: Lab Remarks:

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: J = Estimated quantity above detection limit but below reporting limit; P = Preserved sample; S = Method of standard additions; U = Undetected quantity below detection limit; * = Duplicate analysis not within control limits; ** = Sum of Dissolved Constituents is the sum of major cations (Na, Ca, K, Mg, Mn, Fe) and anions (HCO3, CO3, SO4, Cl, SiO2, NO3, F) in mg/L. Total Dissolved Solids is reported as equivalent weight of evaporation residue. Disclaimer These data represent the contents of the GWIC databases at the Montana Bureau of Mines and Geology at the time and date of the retrieval. The information is considered unpublished and is subject to correction and review on a daily basis. The Bureau warrants the accurate transmission of the data to the original end user. Retransmission of the data to other users is discouraged and the Bureau claims no responsibility if the material is retransmitted.