Ground-Water Information Center Water Quality Report Site Name: DRY CREEK AT VALLEY CTR. RD DCVCRD Report Date: 4/23/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 202214 / 257428 Sample Date: 7/17/2012 12:54:00 PM Location (TRS): 01S 05E 19 CC Agency/Sampler: MBMG / SCOTT, JEFF Latitude/Longitude: 45° 43' 45" N 111° 9' 33" W Field Number: 257428 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: BOZEMAN HOT SPRINGS Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPMN, BWIP4C, BWIP4CCHEM 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) 31.630 1.578 Bicarbonate (HCO3) 123.220 2.020 Magnesium (Mg) 9.150 0.753 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.100 0.178 Chloride (Cl) 1.300 0.037 Potassium (K) 1.740 0.045 Sulfate (SO4) 24.360 0.507 Iron (Fe) <0.015 U 0.000 Nitrate (as N) 0.080 0.006 Manganese (Mn) 0.005 J 0.000 Fluoride (F) 0.140 0.007 Silica (SiO2) 10.840 Orthophosphate (as P) <0.020 U 0.000 Total Cations 2.559 Total Anions 2.577 Trace Element Results (µg/L) Aluminum (Al): 5.610 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.740 Strontium (Sr): 157.660 Antimony (Sb): <0.100 U Chromium (Cr): 0.120 J Nickel (Ni): 1.420 Thallium (Tl): <0.100 U Arsenic (As): 0.730 Cobalt (Co): 0.220 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 60.370 Copper (Cu): 0.510 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): 0.550 Boron (B): 7.630 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): 1.050 Uranium (U): 0.620 Cadmium (Cd): <0.100 U Lithium (Li): 0.870 J Silver (Ag): <0.100 U Vanadium (V): 1.330 Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): 0.110 J Zinc (Zn): <0.200 U Zirconium (Zr): <0.100 U Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 143.38 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 205.79 Hardness as CaCO3: 116.64 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 241 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 233.3 Alkalinity as CaCO3 (mg/L): 100.88 Phosphorus, TD (mg/L): <0.030 U Field pH: 8.4 Ryznar Stability Index: 8.112 Field Nitrate (mg/L): NR Lab pH: 7.88 Sodium Adsorption Ratio: 0.1612 Field Dissolved O2 (mg/L): NR Water Temp (°C): 18.1 Langlier Saturation Index: -0.116 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.