c-----------------------------------------------------------------------
c --- COMMON BLOCK /RTRHD/ --- Variables from 3 files           POSTUTIL
c                              output of calpuff for NO3/HNO3 
c                              repartition
c-----------------------------------------------------------------------
      logical LSGRID3
      character*6 avtime3
      character*12 amodel3,aver3,alev3
      character*16 crhver3
      character*80 atitle3(3)
      common/RTRHD/msyr3,mjsday3,mshr3,mssec3,nsecdt3,
     *            irhtime3,itptime3,irhotime3,i2drhurh,
     *            i2drhutp,i2drhurho,
     *            mnrun3,mavgpd3,mnper3,mavg3,irhver3,
     *            ielmet3,jelmet3,delx3,dely3,nz3,
     *            xorigkm3,yorigkm3,nstas3,
     *            iastar3,iastop3,jastar3,jastop3,
     *            isastr3,isastp3,jsastr3,jsastp3,
     *            ngx3,ngy3,ngrec3,
     *            meshdn3,
     *            ndrec3,nctrec3,LSGRID3,
     *            xrec3(mxdrec),yrec3(mxdrec),zrec3(mxdrec),
     *            xctr3(mxctrec),yctr3(mxctrec),zctr3(mxctrec),
     *            ihill3(mxctrec),
     *            xkmsta3(mxss),ykmsta3(mxss),nearss3(mxgx,mxgy),
     *            amodel3,aver3,alev3,atitle3,avtime3,
     *            crhver3
