Ground-Water Information Center Water Quality Report Site Name: EAST GALLATIN AT GALLATIN RIVER RANCH EGGRR Report Date: 4/28/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202787 / 257433 Sample Date: 9/21/2012 9:35:00 AM Location (TRS): 02N 03E 27 DC Agency/Sampler: MBMG / SCOTT, JEFF Latitude/Longitude: 45° 53' 31" N 111° 19' 55" W Field Number: 257433 Datum: NAD83 Lab Date: 1/23/2013 1:02:53 PM 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: NIXON GULCH 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) 52.430 2.616 Bicarbonate (HCO3) 221.420 3.629 Magnesium (Mg) 15.830 1.303 Carbonate (CO3) 0.000 0.000 Sodium (Na) 8.180 0.356 Chloride (Cl) 6.720 0.190 Potassium (K) 2.820 0.072 Sulfate (SO4) 20.660 0.430 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.620 0.044 Manganese (Mn) 0.005 J 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 15.830 Orthophosphate (as P) <0.020 U 0.000 Total Cations 4.353 Total Anions 4.301 Trace Element Results (µg/L) Aluminum (Al): 1.460 J Cesium (Cs): <0.100 U Molybdenum (Mo): 0.620 Strontium (Sr): 192.220 Antimony (Sb): <0.100 U Chromium (Cr): 0.340 J Nickel (Ni): 1.110 Thallium (Tl): <0.100 U Arsenic (As): 0.880 Cobalt (Co): 0.290 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 72.020 Copper (Cu): 0.240 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 J Titanium (Ti): 0.300 J Boron (B): 15.450 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): 1.230 Uranium (U): 0.890 Cadmium (Cd): <0.100 U Lithium (Li): 4.630 Silver (Ag): <0.100 U Vanadium (V): 1.990 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.260 J Zinc (Zn): <0.200 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 233.13 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 345.26 Hardness as CaCO3: 196.07 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 406 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 419.8 Alkalinity as CaCO3 (mg/L): 181.26 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.21 Ryznar Stability Index: 6.854 Field Nitrate (mg/L): NR Lab pH: 8.19 Sodium Adsorption Ratio: 0.2486 Field Dissolved O2 (mg/L): NR Water Temp (°C): 12.1 Langlier Saturation Index: 0.668 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) 0.840 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) 1.140 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.