A pump station has the following equipment:

- Six 500 hp pumps that run an average of 5 hours a day each.
- A 5 hp sump pump that operates for 1.5 hours per day.
- Twenty 100-watt lights that are always on.
- Six 300-watt night lights that are on for 10 hours a day.

What is the monthly operating cost if power costs 8.75 cents per kWh? (Assume a month is 30 days.)