Ground-Water Information Center Water Quality Report Site Name: CITY OF BOZEMAN  Report Date: 4/29/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 222786 / 135720 Sample Date: 6/15/2017 10:53:00 AM Location (TRS): 02S 06E 19 BBBA Agency/Sampler: MBMG / MASON, DONALD Latitude/Longitude: 45° 39' 22" N 111° 2' 25" W Field Number: 135720 Datum: NAD83 Lab Date: 8/3/2017 6:33:11 AM Altitude: 4939.73 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: 120SDMS Total Depth (ft): 160 USGS 7.5' Quad: BOZEMAN SWL-MP (ft): 25.27 PWS Id: Depth Water Enters (ft): NR Project: GWAAMON, GWCP08, NGWMN-MONTANA,  GWCP08MON, GALVAL Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 69.580 3.472 Bicarbonate (HCO3) 309.200 5.068 Magnesium (Mg) 14.100 1.160 Carbonate (CO3) 0.000 0.000 Sodium (Na) 14.770 0.642 Chloride (Cl) 7.700 0.217 Potassium (K) 5.220 0.134 Sulfate (SO4) 9.290 0.194 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 2.210 0.158 Manganese (Mn) 0.014 J 0.000 Fluoride (F) 0.120 0.006 Silica (SiO2) 44.600 Orthophosphate (as P) 0.040 J 0.000 Total Cations 5.413 Total Anions 5.643 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.540 Strontium (Sr): 174.850 Antimony (Sb): <0.100 U Chromium (Cr): 1.370 Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.570 Cobalt (Co): <0.100 U Niobium (Nb): 0.220 J Thorium (Th): <0.100 U Barium (Ba): 45.980 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.790 Palladium (Pd): 0.210 J Titanium (Ti): <0.100 U Boron (B): 11.200 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): 7.980 Uranium (U): 3.880 Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): 1.550 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): <0.500 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 319.9 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 476.68 Hardness as CaCO3: 231.78 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 465 Field Alkalinity as CaCO3 (mg/L): 242 PCP (µg/L): NR Lab Conductivity (µmhos): 475.96 Alkalinity as CaCO3 (mg/L): 253.43 Phosphorus, TD (mg/L): 0.030 J Field pH: 7.38 Ryznar Stability Index: 7.047 Field Nitrate (mg/L): NR Lab pH: 7.46 Sodium Adsorption Ratio: 0.4287 Field Dissolved O2 (mg/L): 4.940 Water Temp (°C): 10.8 Langlier Saturation Index: 0.206 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): 32.6 Nitrate + Nitrite (mg/L as N) 1.940 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) 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: CLEAR 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.