Ground-Water Information Center Water Quality Report Site Name: BOZEMAN WASTE WATER TREATMENT PLANT  Report Date: 4/19/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1982Q0880 / 6904 Sample Date: 6/30/1982 Location (TRS): 01S 05E 26 BAA Agency/Sampler: PRIV / Latitude/Longitude: 45° 43' 39" N 111° 4' 4" W Field Number: 32 FT Datum: NAD27 Lab Date: 9/9/1982 Altitude: Lab/Analyst: MBMG / FNA County/State: GALLATIN / MT Sample Method/Handling: GRAB / 1000 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 150 USGS 7.5' Quad: CABOOSE CANYON 7 1/2' SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 142 Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 78.200 3.902 Bicarbonate (HCO3) 379.000 6.212 Magnesium (Mg) 23.700 1.950 Carbonate (CO3) 0.000 0.000 Sodium (Na) 20.200 0.879 Chloride (Cl) 4.600 0.130 Potassium (K) 6.000 0.153 Sulfate (SO4) 13.400 0.279 Iron (Fe) <.002 0.000 Nitrate (as N) 0.610 0.044 Manganese (Mn) 0.230 0.008 Fluoride (F) 0.200 0.011 Silica (SiO2) 29.800 Orthophosphate (as P) NR 0.000 Total Cations 6.893 Total Anions 6.675 Trace Element Results (µg/L) Aluminum (Al): NR Cesium (Cs): NR Molybdenum (Mo): NR Strontium (Sr): NR Antimony (Sb): NR Chromium (Cr): <3. Nickel (Ni): NR Thallium (Tl): NR Arsenic (As): 0.400 Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 80.000 Copper (Cu): NR Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): NR Boron (B): NR Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): NR Lead (Pb): <40. Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): 3.000 Lithium (Li): NR Silver (Ag): <2. Vanadium (V): NR Cerium (Ce): NR Mercury (Hg): <.04 Selenium (Se): 0.100 Zinc (Zn): NR Zirconium (Zr): NR Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 363.6 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 555.9 Hardness as CaCO3: 292.81 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 572.2 Alkalinity as CaCO3 (mg/L): 310.84 Phosphorus, TD (mg/L): NR Field pH: NR Ryznar Stability Index: 6.559 Field Nitrate (mg/L): NR Lab pH: 7.67 Sodium Adsorption Ratio: 0.5086 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.556 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 Turbidity Field (Jtu) 0.240 Notes Sample Condition: Field Remarks: SAMPLE FROM 32 FT* Lab Remarks: ALL VALUES ARE REPORTED ON A RAW SAMPLE * CD & CR DETECTION LIMITS ARE .002 MG/L *

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.