NIAGARA FALLS — So long, Mark Grisanti, and hello, George Maziarz?

A map of proposed districts released by the New York State Senate on Thursday shows a change in boundaries that would shift Grisanti, a Republican who currently represents the city of Niagara Falls, out of Niagara County entirely as part of a new district that would include Grand Island, the city and town of Tonawanda, the waterfront area in Buffalo and Lackawanna and parts of Orchard Park, Hamburg and several communities in the southtowns.

The new map, drawn as part of the state’s redistricting process, also shows Maziarz, a Newfane Republican, becoming the city’s senator as part of a new 62nd District. The shift would cause Maziarz to lose parts of Rochester and Monroe County that he has represented for years while maintaining all of Orleans County and gaining all of Niagara County, including Niagara Falls.

“I’m excited (about representing the Falls). It’s obviously very challenging,” Maziarz said. “I spend a lot of time in the Falls anyway. I think having all of Niagara County in one senate district is positive and I look forward to that.”

Previously Maziarz had represented the LaSalle and Love Canal portions of the Falls.

“I look forward to improving the economic development climate in the Falls. It isn’t very good right now,” he said.

Maziarz also noted he has a good working relationship with Gov. Andrew Cuomo and is hopeful about getting the governor to visit the Falls “soon.”

On the Assembly side, a proposed map released Thursday shows Republican John Ceretto, who represents the Assembly’s current 138th District, would add Grand Island while keeping Niagara Falls and the towns of Lewiston, Niagara, Wheatfield and Cambria as part of a new 145th Assembly District. Ceretto would lose the towns of Porter, Newfane, Wilson and Hartland.

Ceretto said he doesn’t consider the changes a done deal just yet, and said he thinks things may still change as the process continues to unfold.

“It’s honestly just preliminary in my mind,” Ceretto said. “I’m going to do the best I can to create jobs for this area no matter what my district looks like.”

In a statement issued following the release of the senate map, Grisanti suggested his new district responds to requests to unite interests in Tonawanda, the west side of Buffalo and Niagara County, that were made during the public comment portion of the redistricting process.

“The commission clearly heard those concerns and acted accordingly by reconnecting those communities,” Grisanti said. “While we unite communities of interest, the Western New York delegation will continue to work together, without boundary lines, to serve the people of Western New York.”

Grisanti also seemed interested in assuming responsibility for Buffalo’s waterfront area.

“As we now know, my area of representation will include the waterfront district,” he said. “I believe that the greatest opportunity for growth, job creation and tax stabilization lies within this area. I will be the leader and the voice in Albany for cultivating our underutilized waterfront.”

The new lines still must be finalized but could be in place in time for the fall election season. State law requires the redrawing of district lines for the state Legislature and Congress every 10 years. The process is supposed to be based on population figures reflected in the most recent U.S. Census.

Critics maintain the current process, which involves elected officials drawing lines that some argue allow them to maintain their control, should be handled by a more independent entity. The state Senate map released Thursday comes from the state’s Legislative Task Force on Demographic Research and Reapportionment, which consists of state lawmakers. The plan as proposed adds a 63rd Senate seat in the Capital Region and Upper Hudson Valley, which experienced the largest percentage of population growth based on the 2010 U.S. Census. Democrats have charged that the added seat is a move by the Republicans to retain their one-seat majority in the Senate.

 Common Cause/NY, a group that has been advocating for an independent redistricting process, expressed disappointment in the maps released on Thursday.

“Overall, these maps appear to continue the long tradition of partisan gerrymandering we’ve come to expect,” Common Cause Executive Director Susan Lerner said. “There are major demographic changes that are simply not reflected on these maps.”