Ground-Water Information Center Water Quality Report Site Name: USGS * LINCOLN RD EAST 
Report Date: 1/15/2021 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 1979Q2220 / 5846 Sample Date: 1/17/1979 11:05:00 AM
Location (TRS): 11N 03W 21 BBAA Agency/Sampler: USGS / CP
Latitude/Longitude: 46° 42' 15" N 111° 59' 44" W Field Number: 22B
Datum: WGS84 Lab Date: 4/3/1979
Altitude: 3706.45 Lab/Analyst: MBMG / FNA
County/State: LEWIS AND CLARK / MT Sample Method/Handling: GRAB / 4220
Site Type: WELL Procedure Type: DISSOLVED
Geology: 110ALVM Total Depth (ft): 46.4
USGS 7.5' Quad: LAKE HELENA SWL-MP (ft): NR
PWS Id: Depth Water Enters (ft): 42
Project: GWAAMON, NHCGW, BWIPNH, 
BWIPNHMONM, BWIPNHSGSURV
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 33.300 1.662 Bicarbonate (HCO3) 166.000 2.721
Magnesium (Mg) 13.700 1.127 Carbonate (CO3) 0.000 0.000
Sodium (Na) 15.900 0.692 Chloride (Cl) 13.000 0.367
Potassium (K) 1.600 0.041 Sulfate (SO4) 24.400 0.508
Iron (Fe) 1.850 0.066 Nitrate (as N) 0.093 0.007
Manganese (Mn) 0.220 0.008 Fluoride (F) 0.200 0.011
Silica (SiO2) 3.500 Orthophosphate (as P) NR 0.000
Total Cations 3.596 Total Anions 3.613
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): <10. 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): 189.77 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 274 Hardness as CaCO3: 139.54 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): 140 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 333.3 Alkalinity as CaCO3 (mg/L): 136.15 Phosphorus, TD (mg/L): NR
Field pH: NR Ryznar Stability Index: 7.387 Field Nitrate (mg/L): NR
Lab pH: 8.3 Sodium Adsorption Ratio: 0.5894 Field Dissolved O2 (mg/L): NR
Water Temp (°C): NR Langlier Saturation Index: 0.456 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
Notes
Sample Condition:
Field Remarks: HELENA VALLEY * ANALYSIS BASED ON FILTERED SAMPLE * INTEGRITY AND ORIGIN SUSPECT *
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.