Ground-Water Information Center Water Quality Report Site Name: SCENIC CITY TRUCKING  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 210079 / 231904 Sample Date: 9/10/2015 3:43:00 PM Location (TRS): 01S 04E 04 DD Agency/Sampler: MBMG / ENGLISH, ALAN Latitude/Longitude: 45° 46' 28" N 111° 13' 44" W Field Number: 231904 Datum: NAD83 Lab Date: 10/13/2015 8:46:48 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:2 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 98 USGS 7.5' Quad: BELGRADE SWL-MP (ft): 40.05 PWS Id: Depth Water Enters (ft): 98 Project: RIVERROCK, BWIPMN Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 43.540 2.173 Bicarbonate (HCO3) 170.030 2.787 Magnesium (Mg) 13.820 1.137 Carbonate (CO3) 0.000 0.000 Sodium (Na) 5.630 0.245 Chloride (Cl) 4.240 0.120 Potassium (K) 1.920 0.049 Sulfate (SO4) 37.120 0.773 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.870 0.062 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.170 0.009 Silica (SiO2) 18.320 Orthophosphate (as P) <0.020 U 0.000 Total Cations 3.618 Total Anions 3.751 Trace Element Results (µg/L) Aluminum (Al): 59.000 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.460 J Strontium (Sr): 254.090 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.420 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 56.330 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 2.980 Palladium (Pd): <0.100 U Titanium (Ti): 20.620 Boron (B): 8.710 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): 0.320 Rubidium (Rb): 1.220 Uranium (U): 0.810 Cadmium (Cd): <0.100 U Lithium (Li): 3.230 J Silver (Ag): <0.100 U Vanadium (V): 0.690 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 25.250 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 209.19 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 295.44 Hardness as CaCO3: 165.6 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 390.3 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 319.33 Alkalinity as CaCO3 (mg/L): 139.43 Phosphorus, TD (mg/L): 0.030 J Field pH: 7.14 Ryznar Stability Index: 8.344 Field Nitrate (mg/L): NR Lab pH: 7.09 Sodium Adsorption Ratio: 0.2029 Field Dissolved O2 (mg/L): 6.050 Water Temp (°C): 9.4 Langlier Saturation Index: -0.627 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 105.1 Nitrate + Nitrite (mg/L as N) 0.700 Hydroxide (mg/L as OH): 0.000 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) <1.000 U 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: CLEAR Field Remarks: SAMPLED FROM FROST-FREE HYDRANT AT WELLHEAD 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.