Ground-Water Information Center Water Quality Report Site Name: MCMICHAEL BRENDA  Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1992Q1208 / 130161 Sample Date: 9/10/1992 10:00:00 AM Location (TRS): 01S 04E 10 DDDD Agency/Sampler: USGS / SES Latitude/Longitude: 45° 45' 30" N 111° 12' 20" W Field Number: MCMICH Datum: NAD27 Lab Date: 12/24/1992 Altitude: 4488 Lab/Analyst: MBMG / SFM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 3120 Site Type: WELL Procedure Type: DISSOLVED Geology: Total Depth (ft): 107 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): NR Project: USGS Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 57.300 2.859 Bicarbonate (HCO3) 243.000 3.983 Magnesium (Mg) 14.400 1.185 Carbonate (CO3) 0.000 0.000 Sodium (Na) 6.100 0.265 Chloride (Cl) 1.100 0.031 Potassium (K) 3.200 0.082 Sulfate (SO4) 25.400 0.529 Iron (Fe) 0.010 0.000 Nitrate (as N) 0.116 0.008 Manganese (Mn) <.002 0.000 Fluoride (F) 0.290 0.015 Silica (SiO2) 21.100 Orthophosphate (as P) <.05 0.000 Total Cations 4.400 Total Anions 4.566 Trace Element Results (µg/L) Aluminum (Al): <20. Cesium (Cs): NR Molybdenum (Mo): <20. Strontium (Sr): 222.000 Antimony (Sb): NR Chromium (Cr): <2. Nickel (Ni): <2. Thallium (Tl): NR Arsenic (As): <.8 Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 93.400 Copper (Cu): <2. Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): 34.200 Boron (B): 26.500 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50. Lead (Pb): <3. Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <2. Lithium (Li): 8.000 Silver (Ag): <2. Vanadium (V): <5. Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <.8 Zinc (Zn): 10.200 Zirconium (Zr): <100. Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 247.41 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 370.71 Hardness as CaCO3: 202.35 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 395 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 398 Alkalinity as CaCO3 (mg/L): 199.3 Phosphorus, TD (mg/L): NR Field pH: 7.6 Ryznar Stability Index: 7.055 Field Nitrate (mg/L): NR Lab pH: 7.83 Sodium Adsorption Ratio: 0.1835 Field Dissolved O2 (mg/L): NR Water Temp (°C): 11.6 Langlier Saturation Index: 0.388 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 Additional Parameters Phosphate T Dis (mg/L - P) L .5 Notes Sample Condition: CLEAR Field Remarks: Lab Remarks:

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: A = Hydride atomic absorption; E = Estimated due to interference; H = Exceeded holding time; J = Estimated quantity above detection limit but below reporting limit; K = Na+K combined; N = Spiked sample recovery not within control limits; 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.