Ground-Water Information Center Water Quality Report Site Name: GRANTIER, LARRY & RENAE  Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2008Q0354 / 159554 Sample Date: 2/19/2008 3:40:00 PM Location (TRS): 01S 04E 03 BCB Agency/Sampler: MBMG / ENGLISH, ALAN Latitude/Longitude: 45° 46' 58" N 111° 13' 30" W Field Number: 25 WILDHORSE TRAIL Datum: NAD83 Lab Date: 3/25/2008 Altitude: Lab/Analyst: MBMG / WO County/State: GALLATIN / MT Sample Method/Handling: GRAB / 1111 Site Type: WELL Procedure Type: DISSOLVED Geology: 111SNGR Total Depth (ft): 80 USGS 7.5' Quad: SWL-MP (ft): 46.54 PWS Id: Depth Water Enters (ft): 78.5 Project: RIVERROCK, GALVAL_GW319 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 55.300 2.759 Bicarbonate (HCO3) 190.300 3.119 Magnesium (Mg) 15.400 1.267 Carbonate (CO3) 0.000 0.000 Sodium (Na) 5.650 0.246 Chloride (Cl) 4.940 0.139 Potassium (K) 2.210 0.057 Sulfate (SO4) 35.100 0.731 Iron (Fe) 0.007 0.000 Nitrate (as N) 2.72 P 0.194 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.159 0.008 Silica (SiO2) 18.400 Orthophosphate (as P) <0.05 0.000 Total Cations 4.339 Total Anions 4.192 Trace Element Results (µg/L) Aluminum (Al): 1.740 Cesium (Cs): <0.1 Molybdenum (Mo): <1.0 Strontium (Sr): 357.000 Antimony (Sb): <0.1 Chromium (Cr): <0.1 Nickel (Ni): 0.911 Thallium (Tl): <0.1 Arsenic (As): 0.555 Cobalt (Co): 0.112 Niobium (Nb): <0.1 Thorium (Th): <0.05 Barium (Ba): 82.700 Copper (Cu): 3.490 Neodymium (Nd): <0.1 Tin (Sn): <0.1 Beryllium (Be): <0.1 Gallium (Ga): <0.1 Palladium (Pd): 0.990 Titanium (Ti): <1.0 Boron (B): 10.500 Lanthanum (La): <0.1 Praseodymium (Pr): <0.1 Tungsten (W): <1.0 Bromide (Br): <100 Lead (Pb): <0.2 Rubidium (Rb): 1.320 Uranium (U): 1.420 Cadmium (Cd): <0.1 Lithium (Li): 6.130 Silver (Ag): <1.0 Vanadium (V): 0.885 Cerium (Ce): <0.1 Mercury (Hg): NR Selenium (Se): <0.5 Zinc (Zn): 4.500 Zirconium (Zr): <0.1 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 230.31 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 326.71 Hardness as CaCO3: 201.47 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 292 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 387 Alkalinity as CaCO3 (mg/L): 155.83 Phosphorus, TD (mg/L): <0.01 Field pH: 7.2 Ryznar Stability Index: 7.899 Field Nitrate (mg/L): NR Lab pH: 7.23 Sodium Adsorption Ratio: 0.1839 Field Dissolved O2 (mg/L): NR Water Temp (°C): 9.6 Langlier Saturation Index: -0.335 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.