Kind: captions Language: en we could be getting water from heaven but our infrastructure is so destroyed by the time it makes it to me in my family it's no good [Music] I will never trust what anyone says as far as the condition and quality of water always in the back of my head I want to be wondering [Music] the city had essentially no records of what these lines were the vast majority of the lead pipes were in the public portion of the line the problem is that the fine is buried entirely underground there's no way to find out what the material is unless you dig six feet underground that's very expensive at first would check is the age of the property above this value then is the home located in this neighborhood then has this home had a water test [Music] it takes all these little piece of information and combines them into a single number which is a probability probability of a home having a dangerous pipe when this project started we had a total of 36 verified homes where we actually knew the service line material and now we have over 20,000 homes once you go from 36 to 20,000 the accuracy of a machine learning algorithm increases dramatically that was a decent hit rate it wasn't perfect when something is as devastating as this led in this water we don't need predictions we need a hundred percent accuracy to right this wrong we need to actually dig them holes excavate them all look down in that hole and we see copper to copper lead to copper you come and replace my neighbors but y'all replace mine according to a prediction that don't help nobody's confidence [Music] they did a less targeted less focused approach when it became clear that the hit rate of this new contracting firm had gone down so dramatically people were you know concerned about that and we're trying to figure out why government resources were being used to try to replace pipes at homes that actually didn't require replacement [Music] once all of these agencies that are supposed to be put in a place to protect you deceives you and lie to you how do you ever regain that trust back the damage is permanently done to our bodies to our infrastructure you can never forget that our pipes haven't been changed yet I don't really know what the service line pipes are I want a person down there widowed she'll literally down there and touching that pipe there's really no substitute for seeing someone dig in your front lawn removing that lead pipe and replacing it with a fresh copper pipe the goal is really just take advantage of all the information that we have and remove the lead from the homes that actually have led as quickly as possible so that no residents and Flint have to continue living with lead more than five years after the water has been switched [Music] don't trust ya five years later Flint is not fixed there are things that will never change in my life or my family's life as a result of this and until the wireless system is completely replaced there will be little if any true trust in the water that comes from the tap [Music] [Applause] [Music] you