Washington Gas Light Co has filed an application with the Maryland Public Service Commission to increase rates and charges in Maryland, US.

The proposed rates and charges will increase the company’s overall annual revenues in Maryland by $30m, an increase of 5.9%.

A typical residential heating customer will see an increase of about 5.4% in his gas bill, or an average of about $4.50 per month.

If approved, this rate increase will alleviate the discrepancy between the amount of revenue the company receives from its customers and what it costs the company to do business in the state.

Washington Gas has also included a request to recover costs associated with an accelerated pipe replacement plan.

The company anticipates that the new rates will become effective in November 2011.

Washington Gas is a regulated utility and provides natural gas delivery services and retail sales to Maryland customers.