Government wages for your job...
Those responibilities would be listed as a GS-7 pay scale in the govt. from what I have learned recently. My job now is as a telecommunication specialist for the US Amry Corps of Engineers. My current pay scale is a GS-9 because I have other duties added to the telecomm, but the last guy that was here before me was a GS-11, but he had been here and added to his duties (as I will I hope) to bump up his pay scale.
http://www.opm.gov/oca/03tables/html/RUS.asp The GS-7 starts about 32K, GS-9 about 39K, and the GS-11 about 47K. The link above has been adjusted for the location I live in the US (Norfolk Virginia) so there will be some variance.
I have only been here a short time but my boss said yesterday if I left, she would jump out the window...if your boss feels that way about you, you may well have some grounds to walk up to a higher pay....if not, it is a risk you have to decide on. Good luck!
I look at any job like this..."I came here looking for a job, and I can leave here looking for a job." But I would rather keep the one I have til I find a better one LOL.