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: 2011Q1067 / 257458 Sample Date: 4/15/2011 12:17:00 PM Location (TRS): 01N 03E 12 AB Agency/Sampler: MBMG / SUTHERLAND, MARY K. Latitude/Longitude: 45° 51' 36" N 111° 17' 26" W Field Number: WGDCRD Datum: NAD83 Lab Date: 5/12/2011 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: / 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) 43.700 2.181 Bicarbonate (HCO3) 141.000 2.311 Magnesium (Mg) 12.800 1.053 Carbonate (CO3) 1.120 0.040 Sodium (Na) 5.830 0.254 Chloride (Cl) 2.980 0.084 Potassium (K) 1.750 0.045 Sulfate (SO4) 44.080 0.918 Iron (Fe) <0.005 0.000 Nitrate (as N) 0.052 0.004 Manganese (Mn) 0.007 0.000 Fluoride (F) 0.170 0.009 Silica (SiO2) 11.800 Orthophosphate (as P) <0.1 0.000 Total Cations 3.539 Total Anions 3.366 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 5.770 Strontium (Sr): 226.000 Antimony (Sb): 4.290 Chromium (Cr): 4.590 Nickel (Ni): 5.760 Thallium (Tl): 5.010 Arsenic (As): 5.990 Cobalt (Co): 4.890 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 49.200 Copper (Cu): 5.410 Neodymium (Nd): <0.2 Tin (Sn): <0.5 Beryllium (Be): 4.640 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): 5.030 Boron (B): 8.660 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): 5.030 Rubidium (Rb): 1.140 Uranium (U): 1.030 Cadmium (Cd): 5.130 Lithium (Li): 6.910 Silver (Ag): <0.2 Vanadium (V): 4.960 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): 5.410 Zinc (Zn): 5.070 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 193.97 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 265.51 Hardness as CaCO3: 161.8 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 313 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 377 Alkalinity as CaCO3 (mg/L): 117.31 Phosphorus, TD (mg/L): <0.025 Field pH: 8.55 Ryznar Stability Index: 7.260 Field Nitrate (mg/L): NR Lab pH: 8.32 Sodium Adsorption Ratio: 0.2053 Field Dissolved O2 (mg/L): NR Water Temp (°C): 6.4 Langlier Saturation Index: 0.530 Field Chloride (mg/L): NR Air Temp (°C): 11.6 Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.2 P 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) <1.0 P 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.