Ground-Water Information Center Water Quality Report Site Name: MARTINSDALE SPRING  Report Date: 4/24/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2003Q0336 / 197824 Sample Date: 8/26/2002 1:40:00 PM Location (TRS): 08N 11E 26 CBA Agency/Sampler: MBMG / LGO Latitude/Longitude: 46° 25' 23" N 110° 19' 11" W Field Number: 08N11E2 Datum: NAD83 Lab Date: 11/25/2002 Altitude: Lab/Analyst: MBMG / KTH County/State: MEAGHER / MT Sample Method/Handling: PUMPED / 4230 Site Type: SPRING Procedure Type: DISSOLVED Geology: 124VLCC Total Depth (ft): NR USGS 7.5' Quad: SWL-MP (ft): NR PWS Id: 00287003 Depth Water Enters (ft): NR Project: Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 41.300 2.061 Bicarbonate (HCO3) 191.900 3.145 Magnesium (Mg) 6.480 0.533 Carbonate (CO3) 0.000 0.000 Sodium (Na) 34.400 1.496 Chloride (Cl) 2.300 0.065 Potassium (K) 4.240 0.108 Sulfate (SO4) 56.200 1.171 Iron (Fe) 0.011 0.000 Nitrate (as N) .684 P 0.049 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.323 0.017 Silica (SiO2) 12.100 Orthophosphate (as P) <0.05 0.000 Total Cations 4.214 Total Anions 4.447 Trace Element Results (µg/L) Aluminum (Al): <30 Cesium (Cs): NR Molybdenum (Mo): <10 Strontium (Sr): 599.000 Antimony (Sb): <10 Chromium (Cr): <10 Nickel (Ni): <2 Thallium (Tl): <20 Arsenic (As): NR Cobalt (Co): <2 Niobium (Nb): NR Thorium (Th): NR Barium (Ba): 29.200 Copper (Cu): <5 Neodymium (Nd): NR Tin (Sn): NR Beryllium (Be): <2 Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <1 Boron (B): <30 Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR Bromide (Br): <50 Lead (Pb): NR Rubidium (Rb): NR Uranium (U): NR Cadmium (Cd): <1 Lithium (Li): 12.300 Silver (Ag): NR Vanadium (V): <10 Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): <15 Zinc (Zn): 15.200 Zirconium (Zr): <2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 250.38 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 347.8 Hardness as CaCO3: 129.8 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 3628 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 417 Alkalinity as CaCO3 (mg/L): 157.47 Phosphorus, TD (mg/L): <0.05 Field pH: 6.8 Ryznar Stability Index: 7.394 Field Nitrate (mg/L): NR Lab pH: 7.98 Sodium Adsorption Ratio: 1.2986 Field Dissolved O2 (mg/L): NR Water Temp (°C): 14.7 Langlier Saturation Index: 0.293 Field Chloride (mg/L): NR Air Temp (°C): 75 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: 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.