Ground-Water Information Center Water Quality Report Site Name: ZISCH STEVE  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2009Q0070 / 193925 Sample Date: 7/8/2008 2:49:00 PM Location (TRS): 01S 04E 04 DD Agency/Sampler: MBMG / ARE Latitude/Longitude: 45° 46' 28" N 111° 13' 44" W Field Number: Datum: NAD83 Lab Date: 9/22/2008 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: PUMPED / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 110ALVM Total Depth (ft): 100 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 98 Project: RIVERROCK, GALVAL_GW319 Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 42.800 2.136 Bicarbonate (HCO3) 156.400 2.563 Magnesium (Mg) 12.200 1.004 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.480 0.195 Chloride (Cl) 2.230 0.063 Potassium (K) 1.900 0.049 Sulfate (SO4) 32.100 0.669 Iron (Fe) 0.238 0.009 Nitrate (as N) 0.785 P 0.056 Manganese (Mn) <0.009 0.000 Fluoride (F) 0.143 0.008 Silica (SiO2) 16.300 Orthophosphate (as P) 0.066 0.002 Total Cations 3.398 Total Anions 3.361 Trace Element Results (µg/L) Aluminum (Al): 0.134 Cesium (Cs): <0.1 Molybdenum (Mo): 0.436 Strontium (Sr): 249.000 Antimony (Sb): <0.1 Chromium (Cr): 0.114 Nickel (Ni): 0.275 Thallium (Tl): <0.1 Arsenic (As): 0.532 Cobalt (Co): <0.1 Niobium (Nb): <0.1 Thorium (Th): <0.1 Barium (Ba): 44.900 Copper (Cu): 1.120 Neodymium (Nd): <0.1 Tin (Sn): <0.1 Beryllium (Be): <0.1 Gallium (Ga): <0.1 Palladium (Pd): 0.575 Titanium (Ti): 0.330 Boron (B): 6.970 Lanthanum (La): <0.1 Praseodymium (Pr): <0.1 Tungsten (W): <0.1 Bromide (Br): <50 Lead (Pb): <0.1 Rubidium (Rb): 1.100 Uranium (U): 0.965 Cadmium (Cd): <0.1 Lithium (Li): 3.300 Silver (Ag): <0.1 Vanadium (V): 0.704 Cerium (Ce): <0.1 Mercury (Hg): NR Selenium (Se): 0.192 Zinc (Zn): 1.160 Zirconium (Zr): <0.1 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 187.85 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 267 Hardness as CaCO3: 157.09 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 247 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 359 Alkalinity as CaCO3 (mg/L): 127.95 Phosphorus, TD (mg/L): <0.05 Field pH: 6.83 Ryznar Stability Index: 8.423 Field Nitrate (mg/L): NR Lab pH: 7.1 Sodium Adsorption Ratio: 0.1389 Field Dissolved O2 (mg/L): 6.100 Water Temp (°C): 10.1 Langlier Saturation Index: -0.662 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 236.7 Nitrate + Nitrite (mg/L as N) NR 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) NR 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: CLEAR Field Remarks: SAMPLE COLLECTED FROM OUTSIDE TAP, N SIDE OF BUILDING 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.