FAIRFIELD — The town released a supplemental list of 18 sites that received fill from the contaminated Public Works pile between 2013 and 2016.

In an announcement Friday afternoon, First Selectman Mike Tetreau said many of these sites utilized the fill in ways that may have been acceptable according to state guidlines and would not pose a health risk. In these cases, he said, testing may not be required.

Such circumstances could include fill that was used under asphalt or concrete, or fill that was not part of the larger pile. Tetreau said the town will work with licensed environmental professional Tighe & Bond and state authorities to determine whether and how to test these sites.

The town developed the supplemental list by reviewing invoices from Julian and seeking input from the Conservation, Engineering and Public Works Departments.

Tetreau also announced that the town is moving ahead with remediation of the sidewalk area by Gould Manor Park, which will involve removing the soil on either side of the sidewalk, replacing it with pre-tested soil and reseeding it. They are currently in the process of selecting a contractor.

The Fairfield Citizen’s interactive map has been updated with the full list of supplemental sites.

The map is being continually updated and features each site’s test status, results and closure status. It is color-coded: green pins represent open sites, yellow pins show sites that have been closed pending results and red pins mean the site is closed for remediation.

Reporter Rachel Scharf is covering the testing. She can be reached at 203-842-2638, by email at rscharf@hearstmediact.com or on Twitter at @rscharf_.