Round Lake, MN

 Latitude:  43.5263 N

 Longitude:  95.4137 W

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 Elevation:  469 m ASL

 Installation date:  1-May-07

 Sampling heights:  30 / 110 m AGL

 Instrument:  CADS09 (previously CADS01 and CADS03)

 Reference tank 1:  CAO6313 / 337.76 ppm / 1650 psi (1600 psi 6-Jun-07; 1200 psi Feb-08; 1000 psi Nov-08)

 Reference tank 2:  CAO6327 / 364.16 ppm / 1875 psi (1800 psi 6-Jun-07; 1400 psi Feb-08; 1100 psi Nov-08)

 Notes:  Nov-08 replaced pump and filter

 Most recent calibration date:  24-Jun-07

 To see all pictures, click here.