Ground-Water Information Center Water Quality Report Site Name: USGS OBSERVATION WELL RICHARD MORGAN  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0184 / 133162 Sample Date: 8/20/2008 12:49:00 PM Location (TRS): 01N 04E 15 DADD Agency/Sampler: MBMG / DCM Latitude/Longitude: 45° 50' 7" N 111° 12' 5" W Field Number: 133162 Datum: NAD83 Lab Date: 10/13/2008 Altitude: 4320.54 Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: GRAB / 4230 Site Type: WELL Procedure Type: DISSOLVED Geology: 120SNGR Total Depth (ft): 315 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 5.3 PWS Id: Depth Water Enters (ft): 300 Project: GWAAMON, GWCP08, NGWMN-MONTANA,  GWCP08MON, GALVAL Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 32.500 1.622 Bicarbonate (HCO3) 159.300 2.611 Magnesium (Mg) 7.670 0.631 Carbonate (CO3) 0.000 0.000 Sodium (Na) 6.000 0.261 Chloride (Cl) 1.850 0.052 Potassium (K) 9.400 0.240 Sulfate (SO4) 8.460 0.176 Iron (Fe) <0.003 0.000 Nitrate (as N) <0.5 P 0.000 Manganese (Mn) 0.242 0.009 Fluoride (F) 0.222 0.012 Silica (SiO2) 22.800 Orthophosphate (as P) <0.05 0.000 Total Cations 2.768 Total Anions 2.851 Trace Element Results (µg/L) Aluminum (Al): 4.210 Cesium (Cs): <0.1 Molybdenum (Mo): 1.190 Strontium (Sr): 168.000 Antimony (Sb): <0.1 Chromium (Cr): 1.800 Nickel (Ni): <0.1 Thallium (Tl): <0.1 Arsenic (As): 1.300 Cobalt (Co): <0.1 Niobium (Nb): <0.1 Thorium (Th): <0.1 Barium (Ba): 36.600 Copper (Cu): <0.1 Neodymium (Nd): <0.2 Tin (Sn): <0.1 Beryllium (Be): <0.1 Gallium (Ga): <0.1 Palladium (Pd): 0.237 Titanium (Ti): <0.1 Boron (B): 5.370 Lanthanum (La): <1.0 Praseodymium (Pr): <0.1 Tungsten (W): <0.1 Bromide (Br): <50 Lead (Pb): <0.5 Rubidium (Rb): 2.410 Uranium (U): 0.736 Cadmium (Cd): <0.1 Lithium (Li): 0.399 Silver (Ag): <0.1 Vanadium (V): 2.520 Cerium (Ce): <0.5 Mercury (Hg): NR Selenium (Se): <0.5 Zinc (Zn): <0.2 Zirconium (Zr): <0.1 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 166.5 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 247.17 Hardness as CaCO3: 112.72 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 276 Field Alkalinity as CaCO3 (mg/L): 104 PCP (µg/L): NR Lab Conductivity (µmhos): 277 Alkalinity as CaCO3 (mg/L): 130.41 Phosphorus, TD (mg/L): <0.05 Field pH: 7.92 Ryznar Stability Index: 7.866 Field Nitrate (mg/L): 0.000 Lab pH: 7.88 Sodium Adsorption Ratio: 0.2459 Field Dissolved O2 (mg/L): 6.070 Water Temp (°C): 13.4 Langlier Saturation Index: 0.007 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 110 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.