Ground-Water Information Center Water Quality Report Site Name: WEST GALLATIN AT DRY CREEK RD WGDCRD Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 200764 / 257458 Sample Date: 9/16/2011 12:20:00 PM Location (TRS): 01N 03E 12 AB Agency/Sampler: MBMG / HENNE, BILL Latitude/Longitude: 45° 51' 36" N 111° 17' 26" W Field Number: WGDCRD Datum: NAD83 Lab Date: 12/20/2011 7:36:09 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) 40.150 2.003 Bicarbonate (HCO3) 142.580 2.337 Magnesium (Mg) 11.170 0.919 Carbonate (CO3) 1.940 0.069 Sodium (Na) 4.350 0.189 Chloride (Cl) 1.860 0.052 Potassium (K) 2.110 0.054 Sulfate (SO4) 34.120 0.711 Iron (Fe) 0.006 J 0.000 Nitrate (as N) <0.010 U 0.000 Manganese (Mn) 0.003 J 0.000 Fluoride (F) 0.190 0.010 Silica (SiO2) 12.720 Orthophosphate (as P) <0.020 U 0.000 Total Cations 3.171 Total Anions 3.180 Trace Element Results (µg/L) Aluminum (Al): 0.768 J Cesium (Cs): <0.100 U Molybdenum (Mo): 0.800 Strontium (Sr): 200.910 Antimony (Sb): <0.100 U Chromium (Cr): 0.180 J Nickel (Ni): 0.690 Thallium (Tl): <0.100 U Arsenic (As): 0.730 Cobalt (Co): 0.140 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 52.780 Copper (Cu): 0.300 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): 0.380 J Boron (B): 7.070 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): 1.090 Uranium (U): 0.840 Cadmium (Cd): <0.100 U Lithium (Li): 2.820 Silver (Ag): <0.100 U Vanadium (V): 0.850 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 1.470 Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 178.76 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 251.32 Hardness as CaCO3: 146.23 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 295 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 312.3 Alkalinity as CaCO3 (mg/L): 120.62 Phosphorus, TD (mg/L): <0.010 U Field pH: 8.54 Ryznar Stability Index: 7.280 Field Nitrate (mg/L): NR Lab pH: 8.35 Sodium Adsorption Ratio: 0.1439 Field Dissolved O2 (mg/L): NR Water Temp (°C): 15 Langlier Saturation Index: 0.535 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.