Archer Western Contractors, which is performing work on the Back River Wastewater Treatment Plant, gave money to a political action fund that contributed $500 to Rawlings-Blake in 2014. Spiniello Cos., which repairs water mains, has given $6,000 to Young over two election cycles. R.E. Harrington Plumbing and Heating donated to the campaigns of both Rawlings-Blake and Young in 2011. And M. Luis Construction Co. has donated more than $5,000 to Young over two election cycles.