Missing boiler ID associations

[grgmiller]

Based on reading the crosswalk documentation, the crosswalk uses the EIA-860 boiler generator association (BGA) table as one of its inputs, but the crosswalk does not seem to include the complete set of associations included in the BGA table. I'm not sure whether this is intentional (ie your goal is only to crosswalk CAMD unit ids with EIA generator IDs) or unintentional.

For example, for plant 1391, the crosswalk associates camd unit id 1A only with EIA generator ID 1A and boiler ID 1A. However, the EIA-860 BGA table shows that generator 1A is associated not only with boiler 1A, but also 2A, 3A, and 9.

It might be helpful in the next release to include the full set of boiler-generator associations for each CAMD unit id. Otherwise I would suggest including documentation that users need to merge the crosswalk with the BGA table to get the full set of associations.