Ground-Water Information Center Water Quality Report Site Name: HARLAN RESIDENCE 
Report Date: 3/29/2024 Compare to Water Quality Standards

Location Information
Sample Id/Site Id: 1979Q0211 / 5962 Sample Date: 7/27/1978 11:20:00 AM
Location (TRS): 12N 20W 13 CAAA Agency/Sampler: USGS / E H
Latitude/Longitude: 46° 47' 51" N 114° 3' 20" W Field Number: 12
Datum: NAD27 Lab Date: 8/30/1978
Altitude: 3380 Lab/Analyst: MBMG / FNA
County/State: MISSOULA / MT Sample Method/Handling: GRAB / 4234
Site Type: WELL Procedure Type: DISSOLVED
Geology: 111ALVM Total Depth (ft): 59
USGS 7.5' Quad: SOUTHWEST MISSOULA 7 1/2' SWL-MP (ft): NR
PWS Id: Depth Water Enters (ft): NR
Project: BWIPLOLITHX
Major Ion Results
mg/L meq/L mg/L meq/L
Calcium (Ca) 21.800 1.088 Bicarbonate (HCO3) 113.000 1.852
Magnesium (Mg) 7.800 0.642 Carbonate (CO3) 0.000 0.000
Sodium (Na) 9.200 0.400 Chloride (Cl) 2.100 0.059
Potassium (K) 1.600 0.041 Sulfate (SO4) 7.800 0.162
Iron (Fe) 0.020 0.001 Nitrate (as N) 1.694 0.121
Manganese (Mn) <.01 0.000 Fluoride (F) 0.200 0.011
Silica (SiO2) 20.200 Orthophosphate (as P) NR 0.000
Total Cations 2.172 Total Anions 2.205
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): 128.27 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR
**Sum of Diss. Constituents (mg/L): 185.6 Hardness as CaCO3: 86.54 T.P. Hydrocarbons (µg/L): NR
Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR
Lab Conductivity (µmhos): 211.5 Alkalinity as CaCO3 (mg/L): 92.68 Phosphorus, TD (mg/L): NR
Field pH: NR Ryznar Stability Index: 9.299 Field Nitrate (mg/L): NR
Lab pH: 6.99 Sodium Adsorption Ratio: 0.421 Field Dissolved O2 (mg/L): NR
Water Temp (°C): 11.5 Langlier Saturation Index: -1.155 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: MISSOULA 00200 WELL PUMPING
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.