Ground-Water Information Center Water Quality Report Site Name: LEWIS AND CLARK PIEZOMETER 
Report Date: 3/29/2024 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 223022 / 288234 Sample Date: 8/8/2017 3:08:00 PM
Location (TRS): 12N 20W 34 CDDD Agency/Sampler: MBMG / BERZEL, MATT
Latitude/Longitude: 46° 44' 52" N 114° 4' 35" W Field Number: 288234
Datum: NAD83 Lab Date: 9/22/2017 8:06:38 AM
Altitude: Lab/Analyst: MBMG / TIMMER, JACKIE
County/State: MISSOULA / MT Sample Method/Handling: PUMPED / ru:1 ra:0 fu:2 fa:2
Site Type: PIEZOMETER Procedure Type: DISSOLVED
Geology: 111SNGR
USGS 7.5' Quad: FLORENCE
PWS Id:
Project: BWIPLO, BWIPLOMONGW, BWIPLOLITH1, 
BWIPLOLITHX
Sample Water Use:
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 12.200 0.609 Bicarbonate (HCO3) 69.610 1.141
Magnesium (Mg) 3.730 0.307 Carbonate (CO3) 0.000 0.000
Sodium (Na) 3.600 0.157 Chloride (Cl) 2.160 0.061
Potassium (K) 0.980 0.025 Sulfate (SO4) 3.350 0.070
Iron (Fe) 0.017 J 0.000 Nitrate (as N) <0.010 U 0.000
Manganese (Mn) <0.002 U 0.000 Fluoride (F) 0.130 0.007
Silica (SiO2) 10.890 Orthophosphate (as P) 0.030 J 0.000
Total Cations 1.110 Total Anions 1.278
Trace Element Results (µg/L)
Aluminum (Al): <2.000 U Cesium (Cs): <0.100 U Molybdenum (Mo): 0.570 Strontium (Sr): 39.760
Antimony (Sb): <0.100 U Chromium (Cr): <0.100 U Nickel (Ni): <0.100 U Thallium (Tl): <0.100 U
Arsenic (As): <0.100 U Cobalt (Co): <0.100 U Niobium (Nb): <0.100 U Thorium (Th): <0.100 U
Barium (Ba): 34.070 Copper (Cu): 5.990 Neodymium (Nd): <0.100 U Tin (Sn): <0.100 U
Beryllium (Be): <0.100 U Gallium (Ga): 1.840 Palladium (Pd): <0.100 U Titanium (Ti): <0.100 U
Boron (B): 1.500 J 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): 1.090 Uranium (U): <0.100 U
Cadmium (Cd): <0.100 U Lithium (Li): <2.000 U Silver (Ag): <0.100 U Vanadium (V): <0.100 U
Cerium (Ce): <0.100 U Mercury (Hg): NR Selenium (Se): <0.100 U Zinc (Zn): 390.080
Zirconium (Zr): <0.100 U
Field Chemistry and Other Analytical Results
**Total Dissolved Solids (mg/L): 71.81 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 107.33 Hardness as CaCO3: 45.82 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): 117 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 105.08 Alkalinity as CaCO3 (mg/L): 57.41 Phosphorus, TD (mg/L): <0.030 U
Field pH: 7.14 Ryznar Stability Index: 10.119 Field Nitrate (mg/L): NR
Lab pH: 7.19 Sodium Adsorption Ratio: 0.2571 Field Dissolved O2 (mg/L): NR
Water Temp (°C): 24.7 Langlier Saturation Index: -1.465 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:
Field Remarks: PERISTALTIC PUMP , SYN RUN, RADON TO U OF M
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.