Ground-Water Information Center Water Quality Report Site Name: BAKER CREEK AT STAGECOACH TRAIL RD BCSTRD Report Date: 4/24/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202213 / 265155 Sample Date: 7/17/2012 11:22:00 AM Location (TRS): 01S 04E 06 AA Agency/Sampler: MBMG / SCOTT, JEFF Latitude/Longitude: 45° 47' 13" N 111° 16' 6" W Field Number: 265155 Datum: NAD83 Lab Date: 10/9/2012 7:18:15 AM Altitude: Lab/Analyst: MBMG / MCGRATH, STEVE 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) 30.940 1.544 Bicarbonate (HCO3) 118.830 1.948 Magnesium (Mg) 9.060 0.746 Carbonate (CO3) 0.000 0.000 Sodium (Na) 3.910 0.170 Chloride (Cl) 1.310 0.037 Potassium (K) 1.670 0.043 Sulfate (SO4) 24.320 0.507 Iron (Fe) <0.015 U 0.000 Nitrate (as N) <0.010 U 0.000 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 10.680 Orthophosphate (as P) <0.020 U 0.000 Total Cations 2.507 Total Anions 2.499 Trace Element Results (µg/L) Aluminum (Al): 1.450 J Cesium (Cs): <0.100 U Molybdenum (Mo): 0.720 Strontium (Sr): 161.880 Antimony (Sb): <0.100 U Chromium (Cr): 0.140 J Nickel (Ni): 1.110 Thallium (Tl): <0.100 U Arsenic (As): 0.690 Cobalt (Co): 0.180 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 60.700 Copper (Cu): 0.330 J 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): 0.190 J Boron (B): 7.530 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.040 U Rubidium (Rb): 1.060 Uranium (U): 0.270 J Cadmium (Cd): <0.100 U Lithium (Li): 0.960 J Silver (Ag): <0.100 U Vanadium (V): 0.780 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 0.340 J Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 140.62 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 201 Hardness as CaCO3: 114.55 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 238 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 227.6 Alkalinity as CaCO3 (mg/L): 97.6 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.5 Ryznar Stability Index: 8.040 Field Nitrate (mg/L): NR Lab pH: 8 Sodium Adsorption Ratio: 0.1626 Field Dissolved O2 (mg/L): NR Water Temp (°C): 16.4 Langlier Saturation Index: -0.020 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.