Ground-Water Information Center Water Quality Report Site Name: BURNT ROAD BRNRD1 Report Date: 4/20/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 203655 / 266832 Sample Date: 4/25/2013 1:38:00 PM Location (TRS): 01N 04E 08 CC Agency/Sampler: MBMG / MCGIVERN, AMBER Latitude/Longitude: 45° 50' 45" N 111° 15' 51" W Field Number: 266832 Datum: NAD83 Lab Date: 5/22/2013 6:19:10 PM Altitude: 4274.708 Lab/Analyst: MBMG / MCGRATH, STEVE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:1 fa:2 Site Type: WELL Procedure Type: DISSOLVED Geology: 122MDSV Total Depth (ft): 80 USGS 7.5' Quad: MANHATTAN SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 70 Project: BWIPMN Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 48.770 2.434 Bicarbonate (HCO3) 194.590 3.189 Magnesium (Mg) 12.270 1.010 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.970 0.390 Chloride (Cl) 2.520 0.071 Potassium (K) 3.920 0.100 Sulfate (SO4) 39.290 0.818 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.410 0.029 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.280 0.015 Silica (SiO2) 37.130 Orthophosphate (as P) 0.040 J 0.000 Total Cations 3.940 Total Anions 4.123 Trace Element Results (µg/L) Aluminum (Al): 0.480 J Cesium (Cs): <0.100 U Molybdenum (Mo): 1.270 Strontium (Sr): 230.900 Antimony (Sb): <0.100 U Chromium (Cr): 0.650 Nickel (Ni): 0.510 Thallium (Tl): <0.100 U Arsenic (As): 0.950 Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 50.190 Copper (Cu): <0.040 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): <0.100 U Palladium (Pd): <0.100 U Titanium (Ti): 0.340 J Boron (B): 8.650 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 5.130 Uranium (U): 1.460 Cadmium (Cd): <0.100 U Lithium (Li): <1.500 U Silver (Ag): <0.100 U Vanadium (V): 1.590 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.340 J Zinc (Zn): 0.510 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 249.1 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 348.04 Hardness as CaCO3: 172.28 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 387 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 377.3 Alkalinity as CaCO3 (mg/L): 159.93 Phosphorus, TD (mg/L): <0.030 U Field pH: 7.84 Ryznar Stability Index: 7.816 Field Nitrate (mg/L): NR Lab pH: 7.4 Sodium Adsorption Ratio: 0.2984 Field Dissolved O2 (mg/L): NR Water Temp (°C): 12.7 Langlier Saturation Index: -0.208 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) 0.390 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: 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.