Ground-Water Information Center Water Quality Report Site Name: CITY OF BELGRADE MW-05 Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0671 / 190101 Sample Date: 5/14/2009 Location (TRS): 01N 04E 36 ACC Agency/Sampler: MBMG / GITC Latitude/Longitude: 45° 47' 44" N 111° 10' 5" W Field Number: GLWQD-139 Datum: NAD83 Lab Date: 7/7/2009 Altitude: 4405 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 6000 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 46 USGS 7.5' Quad: SWL-MP (ft): 29.62 PWS Id: Depth Water Enters (ft): 21 Project: GLWQDPHARM, GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 74.500 3.718 Bicarbonate (HCO3) 317.000 5.196 Magnesium (Mg) 20.300 1.670 Carbonate (CO3) 0.000 0.000 Sodium (Na) 20.400 0.887 Chloride (Cl) 19.500 0.550 Potassium (K) 4.270 0.109 Sulfate (SO4) <25.0 0.000 Iron (Fe) <0.043 0.000 Nitrate (as N) 2.44 P 0.174 Manganese (Mn) <0.031 0.000 Fluoride (F) <0.5 0.000 Silica (SiO2) 27.100 Orthophosphate (as P) <0.5 0.000 Total Cations 6.396 Total Anions 5.920 Trace Element Results (µg/L) Aluminum (Al): <7.60 Cesium (Cs): <0.04 Molybdenum (Mo): 0.289 Strontium (Sr): 277.000 Antimony (Sb): <0.05 Chromium (Cr): <0.04 Nickel (Ni): 0.220 Thallium (Tl): <0.03 Arsenic (As): 1.500 Cobalt (Co): 0.177 Niobium (Nb): <0.04 Thorium (Th): <0.02 Barium (Ba): 207.000 Copper (Cu): 2.320 Neodymium (Nd): <0.05 Tin (Sn): <0.04 Beryllium (Be): <0.20 Gallium (Ga): <0.05 Palladium (Pd): <0.10 Titanium (Ti): 0.239 Boron (B): 52.900 Lanthanum (La): <0.02 Praseodymium (Pr): <0.02 Tungsten (W): <0.05 Bromide (Br): <500 Lead (Pb): <0.15 Rubidium (Rb): 1.940 Uranium (U): 2.050 Cadmium (Cd): <0.05 Lithium (Li): 4.370 Silver (Ag): <0.04 Vanadium (V): 2.090 Cerium (Ce): <0.02 Mercury (Hg): NR Selenium (Se): 0.158 Zinc (Zn): 7.300 Zirconium (Zr): <0.05 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 321.97 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 482.81 Hardness as CaCO3: 269.58 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 608 Field Alkalinity as CaCO3 (mg/L): 260 PCP (µg/L): NR Lab Conductivity (µmhos): 608 Alkalinity as CaCO3 (mg/L): 259.99 Phosphorus, TD (mg/L): 0.067 Field pH: 7.62 Ryznar Stability Index: 6.786 Field Nitrate (mg/L): NR Lab pH: 7.64 Sodium Adsorption Ratio: 0.5301 Field Dissolved O2 (mg/L): 3.380 Water Temp (°C): 9.78 Langlier Saturation Index: 0.427 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 173.2 Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): NR Lab, Dissolved Organic Carbon (mg/L): 0.920 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: SAMPLED USING BAILER, PUMPED 150 BAILER VOLUMES BEFORE SAMPLING 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.