(ATCScript "Constants4WTEMP"
  (Set PerConstituent "POHT") 
  (Set ImpConstituent "SOHT")    (Set PerImpConv "1.0") (Set PerImpUnits "btu/acre") ('month is implied time step)
  (Set RchConstituent "ROHEAT")  (Set RchConv    "1.0") (Set RchUnits         "btu") ('month is implied time step)
  (Set PtConstituent  "WTEMP")   (Set PtConv  "7.41E6") (Set PtUnits          "btu") (Set PtScenario    "PT-OBS") 
                                 ('PtConv applies when flow X temp X PtConv -> heat)
                                                        (Set AreaUnits      "acres")
                                                        (Set TotalUnits       "btu")
  (Set HspfAggregation "Sum")
)