\begin{table}%t2
\par
   \caption {\label{tab2}Column densities of \ohtvao\ and estimates of the \orthowater\ abundance, $X$(\ohtvao)~=~$N$(\ohtvao)/$N$(\htva). }   
%\centerline
 { \begin{tabular}{l l r r r r r r r r r r r}
\hline
\hline                      
&&&&& &&Method 1&&&&Method 2&\\
\cline{7-9}\cline{11-13}
Source & Offset & $\int T_{{\rm mb}}$(H${}_2$O)d$ \upsilon$ &  $\Delta \upsilon$  & $N{\rm (H_2)}$ & $T_{\rm kin}$ & $n{\rm (H_2)}$& $N$(\ohtvao)& $X$(\ohtvao) &&$n{\rm (H_2)}$&$N$(\ohtvao)&$X$(\ohtvao)\\
     & (``,'') & (K km s${}^{-1}$) & (km s${}^{-1}$)  & (\expo{19} cm${}^{-2}$) & (K) & (\expo{3} cm${}^{-3}$)& (\expo{15} ${\rm cm^{-2})}$ & (\expo{-5})&&(\expo{3} cm${}^{-3}$)&(\expo{15} ${\rm cm^{-2})}$&(\expo{-5})\\
 \noalign{\smallskip}
     \hline
 \multicolumn{3}{l}{\textbf{Odin sources analyzed in this paper:}} \\
\noalign{\smallskip}
 L1448    & $(-38,~+69)$ & 0.53 (0.63) & $-$10 $\rightarrow$ 7  & 6 & 37 & 1 & \hspace{0.28cm}37 & \hspace{0.28cm}60&& 10&\hspace{0.28cm}7&10\\
          & $(+2,~-2)$   & 1.80 (0.10) & $-8$ $\rightarrow$ 29  & 6 & 37 & 1& \hspace{0.28cm}91 &\hspace{0.28cm}100 &&10&\hspace{0.28cm}19&30\\
          & $(+32,~-81)$ & 1.19 (0.07) & 8 $\rightarrow$ 35  &6 & 37 & 1 & \hspace{0.28cm}102 &\hspace{0.28cm}200 &&10&\hspace{0.28cm}20&30\\
 HH 211 & $(-47,~+4)$     &  $<$1.01 &   &4 & 12 & 10& $<$56 & $<$200 &&&&\\
        & $(+14,~-21)$    &  $<$0.56 &   &4 & 12 & 10& $<$30 & $<$80 &&&&\\
        & $(+73,~-46)$    &  $<$0.96 &   &4 & 12 & 10& $<$53 & $<$100 &&&&\\
 L1551 & $(+84,~+18)$    &  $<$1.29      &  & 100 & 20 & 3 & $<$79 &$<$8&& & & \\
            & $(-129,~-194)$ &  $<$1.43 &   & 100 & 20 & 3 & $<$88 &$<$9&& & & \\ 
            & $(-342,~-404)$ &  $<$2.36 &  & 100 & 20 & 3 & $<$159 &$<$20&& & & \\    
 IC443-G  & $(-2,~-28)$  & 6.70 (0.19) & $-$39 $\rightarrow$ 15 &300&100& 500 &\hspace{0.28cm}0.09 & 0.004&&&& \\ 
 TW Hya$^{a}$   & $(-16,~+5)$   & $<$0.014& & 0.3 & 40 & 1000 &$<$0.00003 &$<$0.001 &&&&\\
 $\epsilon$ Cha~{\sc i~}N & $(+42,~-24)$ & $<$1.071 &  &39& 50 & 2 &$<$10&$<$3&&&&\\
 Sa136 & $(-46,~+146)$ & 1.62 (0.06) & $-$11 $\rightarrow$ 10  & 130 & 40 &6 & \hspace{0.28cm}13& \hspace{0.28cm}1&&100& \hspace{0.28cm}0.8& \hspace{0.28cm}0.06\\ 
       & $(-16,~-4)$  & 4.03 (0.10) &$-$52 $\rightarrow$ 40  & 38 &40 &2& \hspace{0.28cm}74 &\hspace{0.28cm}20&&100& \hspace{0.28cm}1& \hspace{0.28cm}0.3\\ 
       & $(+13,~-154)$ & 1.35 (0.05) & $-$16 $\rightarrow$ 3                  &280  & 40 &13& \hspace{0.28cm}4 &\hspace{0.28cm}0.1&&100& \hspace{0.28cm}0.5& \hspace{0.28cm}0.02\\ 
 HH54 B & $(+2,~+5)$ & 0.91 (0.06) & $-$15 $\rightarrow$ 5  & 3 & 330 &200&\hspace{0.28cm}0.09 & \hspace{0.28cm}0.3&&&&\\
 G327.3-0.6 & $(-1,~-21)$ & $<$1.56 &  & 2360 & 100 & 4 & $<$0.02 &  $<$0.00008&&&&\\ 
 NGC~6334~{\sc i}, \\ 
Case 1     & $(+13,~-33)$    & 2.23 (0.15) & \hspace{0.10cm}$-$13 $\rightarrow$ $-$5  & 10 &100& 4& \hspace{0.28cm}5& \hspace{0.38cm}5&&&& \\ 
 NGC~6334~{\sc i},\\
 Case 2     & $(+13,~-33)$    &96.0 (0.6) & \hspace{0.14cm}$-$93 $\rightarrow$ 36 & 10   &100& 4& \hspace{0.28cm}235 & \hspace{0.28cm}200&&&& \\
Ser SMM1&$(-3,~+8)$& 0.36 (0.05) & $-$1 $\rightarrow$ 8  & 50 &35& 1& \hspace{0.28cm}48 & \hspace{0.28cm}9&&&& \\
       &      & 0.43 (0.05) & 8 $\rightarrow$ 17   & 50 &35& 1& \hspace{0.28cm}23 & \hspace{0.28cm}5&&&& \\
3C391 BML$^b$  & $(+1,~-7)$  & $<$0.82& &40&50&10&$<$2& $<$0.4&&&&\\ 
 B335        & $(+3,~-36)$     & $<$1.62      &     &  27 & 20 & 1& $<$337 & $<$100&&&& \\
 L1157           & $(-21,~+121)$   & 0.08 (0.02) &$-$2 $\rightarrow$ 3  & 16 & 30 & 2& \hspace{0.28cm}5 & \hspace{0.28cm}3&&&& \\
                 &             & 1.75 (0.05) & 3 $\rightarrow$ 36  & 16 & 30 & 2& \hspace{0.28cm}88 & \hspace{0.28cm}60 &&&&\\
                 & $(-4,~+64)$     & 0.71 (0.06) &$-$16 $\rightarrow$ 2  & 16 & 30 & 2& \hspace{0.28cm}38 & \hspace{0.28cm}20 &&&&\\
                 &             & 2.33 (0.08) & 2 $\rightarrow$ 38  & 16 & 30 & 2& \hspace{0.28cm}180 & \hspace{0.28cm}100 &&&&\\
                 & $(+12,~+6)$      & 1.03 (0.04) &$-$15 $\rightarrow$ 3 & 20 & 30 & 3& \hspace{0.28cm}34 & \hspace{0.28cm}20&&1000&0.08&0.04 \\ 
                 &             & 0.21 (0.02) & 3 $\rightarrow$ 8   & 20 & 30 & 3& \hspace{0.28cm}7 & \hspace{0.28cm}3&&1000&0.02& 0.008\\
                 & $(+29,~-52)$   & 1.83 (0.04) & $-$21 $\rightarrow$ 3 & 23 & 30 & 3& \hspace{0.28cm}53 & \hspace{0.28cm}20 &&500&0.3&0.1\\ 
                 &             & 0.29 (0.02) & 3 $\rightarrow$ 8   & 23 & 30 & 3& \hspace{0.28cm}9 & \hspace{0.28cm}4&&500&0.05& 0.02\\
    NGC~7538 IRS 1       & $(+26,~-4)$   & 2.11 (0.33) & $-$62 $\rightarrow$ $-$50 & 39 & 40 & 3& \hspace{0.28cm}51& \hspace{0.28cm}10&&&&\\ 
\hline                                             
\end{tabular}}
\par
\smallskip
Notes to the table: $^{a}$ The volume density and column density are
inferred from HCN and \htva\ observations. $^{b}$ The volume density
and column density are inferred from OH 1720~MHz maser observations. The offsets are the reconstructed pointing offsets and the numbers in the parentheses are the 1$\sigma$ statistical uncertainties. Upper limits are 
   3$\sigma$.
\end{table}