Ground-Water Information Center Water Quality Report Site Name: BAKER CREEK AT STAGECOACH TRAIL RD BCSTRD Report Date: 4/20/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 205323 / 265155 Sample Date: 10/15/2013 1:25:00 PM Location (TRS): 01S 04E 06 AA Agency/Sampler: MBMG / MICHALEK, TOM Latitude/Longitude: 45° 47' 13" N 111° 16' 6" W Field Number: 265155 Datum: NAD83 Lab Date: 1/22/2014 7:32:54 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: GALLATIN / MT Sample Method/Handling: GRAB / ru:1 ra:0 fu:1 fa:2 Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: MANHATTAN Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPMN Stream Width (ft): NR  -  NR Sample Water Use: Sample Depth (ft): NR  -  NR Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 39.620 1.977 Bicarbonate (HCO3) 149.240 2.446 Magnesium (Mg) 11.750 0.967 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.630 0.201 Chloride (Cl) 1.960 0.055 Potassium (K) 1.630 0.042 Sulfate (SO4) 40.920 0.852 Iron (Fe) <0.015 U 0.000 Nitrate (as N) <0.010 U 0.000 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.230 0.012 Silica (SiO2) 12.180 Orthophosphate (as P) <0.020 U 0.000 Total Cations 3.193 Total Anions 3.366 Trace Element Results (µg/L) Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 1.050 Strontium (Sr): 202.410 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): 0.620 Thallium (Tl): <0.100 U Arsenic (As): 0.470 Cobalt (Co): 0.400 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 43.620 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): 0.510 Titanium (Ti): 0.320 J Boron (B): 9.780 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): 1.200 Uranium (U): 0.800 Cadmium (Cd): <0.100 U Lithium (Li): 2.870 J Silver (Ag): <0.100 U Vanadium (V): 0.850 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.250 J Zinc (Zn): <0.050 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 186.77 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 262.37 Hardness as CaCO3: 147.29 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 306 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 279.1 Alkalinity as CaCO3 (mg/L): 122.21 Phosphorus, TD (mg/L): 0.040 J Field pH: 8.4 Ryznar Stability Index: 7.740 Field Nitrate (mg/L): NR Lab pH: 7.89 Sodium Adsorption Ratio: 0.1793 Field Dissolved O2 (mg/L): NR Water Temp (°C): 6.5 Langlier Saturation Index: 0.075 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) <0.200 U 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.