Ground-Water Information Center Water Quality Report Site Name: MBMG * LEWIS AND CLARK COUNTY 
Report Date: 5/27/2022 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 1990Q0287 / 123550 Sample Date: 8/9/1990 10:30:00 AM
Location (TRS): 10N 03W 11 DDCC Agency/Sampler: USGS / JPM
Latitude/Longitude: 46° 37' 53" N 111° 56' 31" W Field Number: LC-1213
Datum: WGS84 Lab Date: 9/28/1990
Altitude: 3755.346 Lab/Analyst: MBMG / SSH
County/State: LEWIS AND CLARK / MT Sample Method/Handling: PUMPED /
Site Type: WELL Procedure Type: DISSOLVED
Geology: 110ALVM Total Depth (ft): 78
USGS 7.5' Quad: LAKE HELENA 7 1/2 SWL-MP (ft): NR
PWS Id: Depth Water Enters (ft): 73
Project: GWAAMON
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 53.510 2.670 Bicarbonate (HCO3) 127.000 2.082
Magnesium (Mg) 11.640 0.958 Carbonate (CO3) 0.000 0.000
Sodium (Na) 16.350 0.711 Chloride (Cl) 6.300 0.178
Potassium (K) 3.220 0.082 Sulfate (SO4) 104.000 2.166
Iron (Fe) <.004 0.000 Nitrate (as N) 1.010 0.072
Manganese (Mn) 0.019 0.001 Fluoride (F) 0.240 0.013
Silica (SiO2) 23.200 Orthophosphate (as P) NR 0.000
Total Cations 4.443 Total Anions 4.510
Trace Element Results (µg/L)
Aluminum (Al): 111.000 Cesium (Cs): NR Molybdenum (Mo): <40. Strontium (Sr): 387.000
Antimony (Sb): NR Chromium (Cr): <5. Nickel (Ni): <20. Thallium (Tl): NR
Arsenic (As): NR Cobalt (Co): NR Niobium (Nb): NR Thorium (Th): NR
Barium (Ba): 41.000 Copper (Cu): <4. Neodymium (Nd): NR Tin (Sn): NR
Beryllium (Be): NR Gallium (Ga): NR Palladium (Pd): NR Titanium (Ti): <4.
Boron (B): <40. Lanthanum (La): NR Praseodymium (Pr): NR Tungsten (W): NR
Bromide (Br): <100. Lead (Pb): NR Rubidium (Rb): NR Uranium (U): NR
Cadmium (Cd): <5. Lithium (Li): 11.000 Silver (Ag): <4. Vanadium (V): <4.
Cerium (Ce): NR Mercury (Hg): NR Selenium (Se): NR Zinc (Zn): <6.
Zirconium (Zr): <6.
Field Chemistry and Other Analytical Results
**Total Dissolved Solids (mg/L): 280.82 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 345.26 Hardness as CaCO3: 181.52 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): 415 Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 431.1 Alkalinity as CaCO3 (mg/L): 104.16 Phosphorus, TD (mg/L): NR
Field pH: 7.07 Ryznar Stability Index: 8.718 Field Nitrate (mg/L): NR
Lab pH: 6.69 Sodium Adsorption Ratio: 0.5168 Field Dissolved O2 (mg/L): NR
Water Temp (°C): NR Langlier Saturation Index: -1.014 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
Additional Parameters
Phosphate T Dis (mg/L - P) L0.1
Sample Condition: CLEAR
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.
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.