Ground-Water Information Center Water Quality Report Site Name: MARTINSDALE COLONY  Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2001Q1685 / 154303 Sample Date: 6/13/2001 1:55:00 PM Location (TRS): 08N 12E 05 AC Agency/Sampler: MBMG / MLH Latitude/Longitude: 46° 29' 4" N 110° 14' 52" W Field Number: 154303 Datum: NAD83 Lab Date: 8/23/2001 Altitude: Lab/Analyst: MBMG / JMC County/State: WHEATLAND / MT Sample Method/Handling: GRAB / 4220 Site Type: WELL Procedure Type: DISSOLVED Geology: 211EGLE Total Depth (ft): 155 USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: 00445005 Depth Water Enters (ft): 105 Project: MRWS-SWP Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 4.580 0.229 Bicarbonate (HCO3) 616.100 10.098 Magnesium (Mg) 1.010 0.083 Carbonate (CO3) 30.000 1.074 Sodium (Na) 539.000 23.447 Chloride (Cl) 26.200 0.739 Potassium (K) 0.800 0.020 Sulfate (SO4) 673.000 14.019 Iron (Fe) <.005 0.000 Nitrate (as N) <.5 P 0.000 Manganese (Mn) <.001 0.000 Fluoride (F) 0.552 0.029 Silica (SiO2) 6.470 Orthophosphate (as P) <.5 0.000 Total Cations 23.906 Total Anions 25.959 Trace Element Results (µg/L) Aluminum (Al): <150 Cesium (Cs): NR Molybdenum (Mo): <50 Strontium (Sr): 346.000 Antimony (Sb): <10 Chromium (Cr): <10 Nickel (Ni): <10 Thallium (Tl): <25 Arsenic (As): <5 Cobalt (Co): <10 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): <10 Copper (Cu): <10 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): 1,290.000 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): 552.000 Lead (Pb): <10 Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <10 Lithium (Li): 99.700 Silver (Ag): <5 Vanadium (V): <25 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <5 Zinc (Zn): <10 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 1585.04 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 1897.59 Hardness as CaCO3: 15.59 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 2450 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 2420 Alkalinity as CaCO3 (mg/L): 555.26 Phosphorus, TD (mg/L): <.05 Field pH: 8.81 Ryznar Stability Index: 7.549 Field Nitrate (mg/L): NR Lab pH: 8.64 Sodium Adsorption Ratio: 59.3958 Field Dissolved O2 (mg/L): NR Water Temp (°C): 12 Langlier Saturation Index: 0.545 Field Chloride (mg/L): NR Air Temp (°C): 17 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 Notes Sample Condition: CLEAR COLORLESS SLIGHT SO4 ODOR 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.