Ground-Water Information Center Water Quality Report Site Name: DOUGLAS CHUCK AND PATRICIA  Report Date: 4/24/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2000Q0425 / 67424 Sample Date: 10/21/1999 2:19:00 PM Location (TRS): 12N 20W 33 DABA Agency/Sampler: MBMG / CARSTARPHEN, CAMELA Latitude/Longitude: 46° 45' 15" N 114° 6' 42" W Field Number: 67424 Datum: NAD83 Lab Date: 1/24/2000 Altitude: 3300 Lab/Analyst: MBMG / JMC County/State: MISSOULA / MT Sample Method/Handling: PUMPED / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 400BELT Total Depth (ft): 270 USGS 7.5' Quad: SOUTHWEST MISSOULA SWL-MP (ft): 80.5 PWS Id: Depth Water Enters (ft): 30 Project: GWCP04, BWIPLOLITHX, BWIPLO_CREEK Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 24.800 1.238 Bicarbonate (HCO3) 130.500 2.139 Magnesium (Mg) 9.990 0.822 Carbonate (CO3) 0.000 0.000 Sodium (Na) 2.700 0.117 Chloride (Cl) 0.792 0.022 Potassium (K) 1.390 0.036 Sulfate (SO4) 3.970 0.083 Iron (Fe) 0.018 0.001 Nitrate (as N) <.5 P 0.000 Manganese (Mn) 0.002 0.000 Fluoride (F) 0.105 0.006 Silica (SiO2) 11.600 Orthophosphate (as P) <.05 0.000 Total Cations 2.218 Total Anions 2.249 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 60.300 Antimony (Sb): <2 Chromium (Cr): <2 Nickel (Ni): <2 Thallium (Tl): <5 Arsenic (As): <1 Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 28.200 Copper (Cu): <2 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <20 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): <2 Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <2 Lithium (Li): <10 Silver (Ag): <1 Vanadium (V): <5 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <1 Zinc (Zn): 92.300 Zirconium (Zr): <10 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 120.41 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 186.88 Hardness as CaCO3: 103.04 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 202 Field Alkalinity as CaCO3 (mg/L): 98 PCP (µg/L): NR Lab Conductivity (µmhos): 192 Alkalinity as CaCO3 (mg/L): 107.44 Phosphorus, TD (mg/L): <.2 Field pH: 7.6 Ryznar Stability Index: 8.289 Field Nitrate (mg/L): 0.000 Lab pH: 7.86 Sodium Adsorption Ratio: 0.1286 Field Dissolved O2 (mg/L): NR Water Temp (°C): 10.5 Langlier Saturation Index: -0.214 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): 280.7 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: Lab Remarks:

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: A = Hydride atomic absorption; E = Estimated due to interference; H = Exceeded holding time; J = Estimated quantity above detection limit but below reporting limit; K = Na+K combined; N = Spiked sample recovery not within control limits; 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.