@kjohnston - Just one second thought regarding what you proposed.  In the solution I had, we would not have to repeat the value of the DATABASE_URL within the PGBACKUPS_DATABASE_URL env variable.  So instead of having two variables like this:

```
HEROKU_POSTGRESQL_BRONZE_URL=postgres://username:password@ec2-123-45-678-9.compute-1.amazonaws.com:5432/dbname
PGBACKUPS_DATABASE_URL=postgres://username:password@ec2-123-45-678-9.compute-1.amazonaws.com:5432/dbname
```

We would reference the DATABASE_URL like:

```
HEROKU_POSTGRESQL_BRONZE_URL=postgres://username:password@ec2-123-45-678-9.compute-1.amazonaws.com:5432/dbname
PGBACKUPS_DATABASE=HEROKU_POSTGRESQL_BRONZE_URL
```

Not sure if there is a better way to keep this dry.

thx!