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Engineers and residents debate use of road millings; council to consider testing
Summary
Dennis Engineering recommended moisture and compaction to make millings bind and limit dust; residents raised chemical and floodplain concerns and asked whether BTEX testing or other analyses should be run before broader use in Red River.
Dennis Engineering, introduced to the council as Tappan for a pavement presentation, outlined how reused pavement millings are commonly applied and emphasized two controls—moisture and compaction—to reduce dust and encourage the material to bind. "The two key things that we have noticed that should be done is adding moisture and compacting," Tappan said, noting that some compaction will come from traffic but that supplementation (for example a water truck) may be required.
Residents pushed back with health and environmental concerns about placing millings in areas with high groundwater and floodplain exposure. One resident asked whether industry-standard testing (referred to in the discussion as a BTEX test) should be run to reassure the public that the material does not contain harmful chemical residues. Public works and engineering staff said tests can be considered and that the material's performance depends on mix, compaction, maintenance, and local conditions; council asked staff to explore whether testing (GM emulsions or BTEX) is warranted when millings are applied in sensitive areas.
