Ground-Water Information Center Water Quality Report Site Name: CITY OF BELGRADE MONITORING WELL E  Report Date: 4/16/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0667 / 193069 Sample Date: 5/13/2009 Location (TRS): 01S 05E 06 ADBD Agency/Sampler: MBMG / GI Latitude/Longitude: 45° 46' 55" N 111° 8' 52" W Field Number: GLWQD-134 Datum: NAD83 Lab Date: 7/7/2009 Altitude: 4438 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 48 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 27.03 PWS Id: Depth Water Enters (ft): 21 Project: GLWQDPHARM, GWCP08 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 57.700 2.879 Bicarbonate (HCO3) 238.100 3.902 Magnesium (Mg) 14.700 1.210 Carbonate (CO3) 0.000 0.000 Sodium (Na) 6.870 0.299 Chloride (Cl) 4.560 0.129 Potassium (K) 3.650 0.093 Sulfate (SO4) 17.800 0.371 Iron (Fe) <0.043 0.000 Nitrate (as N) 1.95 P 0.139 Manganese (Mn) <0.031 0.000 Fluoride (F) 0.102 0.005 Silica (SiO2) 25.900 Orthophosphate (as P) 0.072 0.002 Total Cations 4.487 Total Anions 4.549 Trace Element Results (µg/L) Aluminum (Al): <7.60 Cesium (Cs): <0.04 Molybdenum (Mo): 0.466 Strontium (Sr): 189.000 Antimony (Sb): <0.05 Chromium (Cr): 0.335 Nickel (Ni): 0.379 Thallium (Tl): <0.03 Arsenic (As): 0.717 Cobalt (Co): <0.10 Niobium (Nb): <0.04 Thorium (Th): <0.02 Barium (Ba): 111.000 Copper (Cu): 1.990 Neodymium (Nd): <0.05 Tin (Sn): <0.04 Beryllium (Be): <0.20 Gallium (Ga): <0.05 Palladium (Pd): <0.10 Titanium (Ti): <0.20 Boron (B): 11.700 Lanthanum (La): <0.02 Praseodymium (Pr): <0.02 Tungsten (W): <0.05 Bromide (Br): <50 Lead (Pb): 0.393 Rubidium (Rb): 1.470 Uranium (U): 1.520 Cadmium (Cd): <0.05 Lithium (Li): 2.720 Silver (Ag): <0.04 Vanadium (V): 2.580 Cerium (Ce): <0.02 Mercury (Hg): NR Selenium (Se): 0.242 Zinc (Zn): 4.200 Zirconium (Zr): <0.05 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 249.65 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 370.41 Hardness as CaCO3: 204.58 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 305 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 325 Alkalinity as CaCO3 (mg/L): 195.2 Phosphorus, TD (mg/L): <0.033 Field pH: 7.25 Ryznar Stability Index: 7.277 Field Nitrate (mg/L): NR Lab pH: 7.62 Sodium Adsorption Ratio: 0.213 Field Dissolved O2 (mg/L): 6.000 Water Temp (°C): 13.4 Langlier Saturation Index: 0.172 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) NR Hydroxide (mg/L as OH): NR Lab, Dissolved Organic Carbon (mg/L): NR 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.