Ground-Water Information Center Water Quality Report Site Name: CRARY DOUGLAS C *WELL 4  Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 1976Q1625 / 6359 Sample Date: 1/18/1977 12:05:00 PM Location (TRS): 25N 06W 30  Agency/Sampler: MBMG / FAS Latitude/Longitude: 47° 53' 25" N 112° 23' 32" W Field Number: 77SS178 Datum: NAD83 Lab Date: 7/21/1977 Altitude: 4275 Lab/Analyst: MBMG / LAW County/State: TETON / MT Sample Method/Handling: GRAB / 4130 Site Type: WELL Procedure Type: Geology: 111TRRC Total Depth (ft): 30 USGS 7.5' Quad: BYNUM 15 SWL-MP (ft): NR PWS Id: Depth Water Enters (ft): 30 Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 68.800 3.433 Bicarbonate (HCO3) 273.000 4.474 Magnesium (Mg) 21.000 1.728 Carbonate (CO3) 0.000 0.000 Sodium (Na) 3.200 0.139 Chloride (Cl) 17.000 0.480 Potassium (K) 0.500 0.013 Sulfate (SO4) 14.700 0.306 Iron (Fe) <.01 0.000 Nitrate (as N) 0.115 0.008 Manganese (Mn) <.01 0.000 Fluoride (F) 0.300 0.016 Silica (SiO2) 5.800 Orthophosphate (as P) NR 0.000 Total Cations 5.313 Total Anions 5.284 Trace Element Results (µg/L) Aluminum (Al): NR Cesium (Cs): NR Molybdenum (Mo): NR Strontium (Sr): NR Antimony (Sb): NR Chromium (Cr): NR Nickel (Ni): NR Thallium (Tl): NR Arsenic (As): NR Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR Barium (Ba): NR Copper (Cu): NR Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): NR Boron (B): NR Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): NR Lead (Pb): NR Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): NR Lithium (Li): NR Silver (Ag): NR Vanadium (V): NR Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): NR Zinc (Zn): NR Zirconium (Zr): NR Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 266.28 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 404.8 Hardness as CaCO3: 258.23 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 409 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 474.4 Alkalinity as CaCO3 (mg/L): 223.91 Phosphorus, TD (mg/L): NR Field pH: 7.7 Ryznar Stability Index: 6.725 Field Nitrate (mg/L): NR Lab pH: 7.9 Sodium Adsorption Ratio: 0.0812 Field Dissolved O2 (mg/L): NR Water Temp (°C): 13 Langlier Saturation Index: 0.588 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): NR Field Redox (mV): NR 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 Additional Parameters Aluminum Diss (mg/L-Al) L.05 Arsenic Diss(ug/L-As) L2.0 Boron Diss (mg/L-B) 0.040 Chromium Diss (mg/L-Cr) L.01 Copper Diss (mg/L-Cu) 0.030 Mercury Diss(ug/L-Hg) L.3 Lithium Diss(mg/L-Li) 0.010 Nickel Diss (mg/L-Ni) L.01 Lead Diss (mg/L-Pb) L.05 Phosphate T Dis (mg/L - P) 0.078 Antimony Dis(mg/L-Sb) L.2 Selenium Diss (ug/L-Se) L2.0 Tin Diss (mg/L-Sn) L.05 Strontium Diss (mg/L-Sr) 0.300 Zinc Diss (mg/L-Zn) 0.050 Notes Sample Condition: SALINE SEEP * SANDPOINT * P.O. BOX 509 CHOTEAU 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.