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Workers dug at 8,833 homes in 2017 and out of those homes 6,228 had their hazardous pipes replaced - a 70 percent accuracy rate, according to researchers Jared Webb Jake Abernethy, and Eric Schwartz.įlint stopped referring to the computer model for planning replacements in 2018 when AECOM, a Los Angeles-based engineering firm took over FAST Start, the city’s pipe replacement program. The hit rate for those homes was 3 percent this year.įlint first used the model in 2016 and utilized it again in 2017. The city also dug at homes that weren’t predicted to have a high likelihood of lead or galvanized service lines based on the model. The rate of finding lead or galvanized service pipes in Flint increased 15 to 64 percent while using a predictive model to plan replacements. The hit rate for finding the lead and galvanized lines went up tremendously after the city switched back to using the predictive model in spring 2019, Chaudhary said. This year the city has replaced 1,413 lead or galvanized service lines and checked pipes at 3,863 homes. Overall, Flint has checked service lines at 24,304 residences and replaced 9,448 lead or galvanized steel service lines since the FAST Start pipe replacement program began in 2016.
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The hit rate for the non-prioritized homes has been 3% percent in 2019, relative to a hit rate of 64% for homes on the prioritized list. Browse All Categories classified, including pets, automotive, real estate, announcements and services. One of the key points from this week’s article that has affected the city’s overall hit rate is that the city has excavated at homes that are not on the prioritized list of homes for replacement. All Categories classified ads of The Grand Rapids Press, Kalamazoo Gazette, Muskegon Chronicle, Jackson Citizen Patriot, Flint Journal, Saginaw News and Bay City Times. With more than 1,000 Flint residences still needing lead service line replacements, an MLive story this week shows how the predictive algorithm of Eric Schwartz, Jake Abernethy, and Jared Webb is helping the city locate those homes.