AUGUSTA, Maine — Maine State Treasurer Bruce Poliquin is taking aim at what he sees as wasted spending for affordable housing projects in Portland and Waterville.

Poliquin plans to air his concerns at Tuesday’s meeting of the Maine State Housing Authority Board, on which he serves.

In his latest blog, Poliquin raises concerns about the planned Elm Terrace low-income apartment project in Portland and the Gilman Street project in the former Waterville junior high. In both cases, he says the cost of the apartments exceeds that of local single-family homes.

The housing authority says it’s taken several steps to lower development costs such as a more efficient use of low-income housing tax credits. But the quasi-independent agency also says the cost of developing affordable housing is increasing and fewer financial resources are available.