Ground-Water Information Center Water Quality Report Site Name: LOLO CREEK AT HWY93 HWY93 DNRC -76HB 9600 Report Date: 4/26/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 229520 / 288424 Sample Date: 4/3/2018 12:40:00 PM Location (TRS): 12N 20W 35 CDC Agency/Sampler: MBMG / SNYDER, DEAN Latitude/Longitude: 46° 44' 57" N 114° 4' 52" W Field Number: LOLO CREEK AT HW93 Datum: NAD83 Lab Date: 4/19/2018 10:50:13 AM Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE County/State: MISSOULA / MT Sample Method/Handling: GRAB / ru:3 ra:0 fu:1 fa:2 Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: FLORENCE Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BWIPLO, BWIPLOSW, BWIPLOSYN,  BWIPLOMONSW, BWIPLOLITH1, BWIPLOLITHX Stream Width (ft): NR  -  NR Sample Water Use: Sample Depth (ft): NR  -  NR Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 10.460 0.522 Bicarbonate (HCO3) 55.630 0.912 Magnesium (Mg) 3.610 0.297 Carbonate (CO3) 0.000 0.000 Sodium (Na) 4.130 0.180 Chloride (Cl) 3.580 0.101 Potassium (K) 0.950 0.024 Sulfate (SO4) 4.200 0.087 Iron (Fe) 0.066 J 0.000 Nitrate (as N) <0.010 U 0.000 Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.150 0.008 Silica (SiO2) 15.610 Orthophosphate (as P) <0.020 U 0.000 Total Cations 1.034 Total Anions 1.108 Trace Element Results (µg/L) Aluminum (Al): 88.090 Cesium (Cs): <0.100 U Molybdenum (Mo): 0.470 J Strontium (Sr): 31.170 Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U Arsenic (As): 0.240 J Cobalt (Co): 0.220 J Niobium (Nb): <0.100 U Thorium (Th): <0.100 U Barium (Ba): 32.300 Copper (Cu): <0.500 U Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U Beryllium (Be): <0.100 U Gallium (Ga): 1.540 Palladium (Pd): <0.100 U Titanium (Ti): 2.060 Boron (B): 2.220 Lanthanum (La): <0.100 U Praseodymium (Pr): <0.100 U Tungsten (W): <0.100 U Bromide (Br): <10.000 U Lead (Pb): <0.060 U Rubidium (Rb): 0.680 Uranium (U): 0.470 J Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): 0.360 J Cerium (Ce): 0.270 J Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): <0.500 U Zirconium (Zr): 0.350 J Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 70.74 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 99.16 Hardness as CaCO3: 40.98 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): 98.7 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 102.42 Alkalinity as CaCO3 (mg/L): 45.93 Phosphorus, TD (mg/L): 0.040 J Field pH: 8.08 Ryznar Stability Index: 10.307 Field Nitrate (mg/L): NR Lab pH: 7.33 Sodium Adsorption Ratio: 0.2719 Field Dissolved O2 (mg/L): 14.500 Water Temp (°C): 1.9 Langlier Saturation Index: -1.488 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.010 U Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.200 U Hydroxide (mg/L as OH): 0.000 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: NORMAL FOR CREEK 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.