RALEIGH, N.C. — Some North Carolina legislators want a law passed soon addressing ways to know more about what unregulated chemicals are in drinking water supplies and to better calculate concentrations in the water that appear safe.

A House committee voted unanimously Thursday to recommend to the full chamber legislation that responds to “emerging contaminants” such as GenX, which was found in Wilmington’s main water supply. House Republicans want the measure approved during a special session that begins next Wednesday. The Senate would have to approve the measure, too.

The proposal doesn’t contain additional funds for state health and environmental regulators to pay for more chemical testing, high-tech equipment and discharge permitting. Rather, it includes studies and water-quality data sharing with other states. Republicans said a separate funding bill is still being deliberated.