Open Data Network

City of Flint Distribution System Monitoring Data

The City of Flint purchases treated water from the Great Lakes Water Authority (GLWA) and the Genesee County Drain Commissioner (GCDC) and provides further treatment to optimize corrosion control. • Data collected from the City's distribution system helps us know whether the treatment process is working correctly • Some data in the table is informational only • Some data shows whether target ranges for pH, orthophosphate, chlorine, and iron are being met. Other testing that EGLE is doing for the City of Flint is Lead and Copper Sequential Sampling. The four categories shown on the previous page (pH, Orthophosphate, Iron, and Chlorine) are main indicators of whether the City's corrosion control treatment is working properly. In 2017 EGLE set required ranges for pH and orthophosphate. An expanded dataset is available. Visit Michigan.gov/FlintWater for more information.

Michigan Per Capita Personal Income

Michigan per capita personal income compared to the national average. The annual growth rate of per capita personal income for Michigan and the U.S. is included. For both measures Michigan's rank among the states is included for each year from 1990-2015.

Michigan Per Capita Real GDP

Michigan per capita real GDP compared to United States. Growth rate of Michigan per capita real GDP ranked among states.

Michigan Income vs U.S. Income - Per Capita

Michigan per capita personal income compared to the national average. The annual growth rate of per capita personal income for Michigan and the U.S. is included. For both measures Michigan's rank among the states is included for each year from 1990-2015.

Michigan Income % Change vs U.S. Income % Change - Per Capita

Michigan per capita personal income compared to the national average. The annual growth rate of per capita personal income for Michigan and the U.S. is included. For both measures Michigan's rank among the states is included for each year from 1990-2015.

Flint Water Reports to EPA

Compliance with the U.S. Environmental Protection Agency's (EPA) January 21, 2016, Emergency Order is of critical importance to the State as it works with all levels of government to ensure the people of Flint have access to safe, clean drinking water.

Great Lakes Water Authority (GLWA) Monitoring Data

Public water systems sample for many different water quality indicators, also known as parameters, every day to help ensure the safety of your drinking water. The data shown in the tables below helps the City of Flint make decisions about the best way to treat the water. If more than one sample is collected per day at a particular location, the average or range of all daily samples may be shown. This table shows water quality data for the GLWA water system. The City will use this data to make treatment decisions when the GLWA is supplying water to the City of Flint. For more information, visit Michigan.gov/FlintWater

Genesee County Drain Commissioner (GCDC) Monitoring Data

Public water systems sample for many different water quality indicators, also known as parameters, every day to help ensure the safety of your drinking water. The data shown in the tables below helps the City of Flint make decisions about the best way to treat the water. If more than one sample is collected per day at a particular location, the average or range of all daily samples may be shown. This table shows water quality data for the GCDC system. The City of Flint will use this data to make treatment decisions when the GCDC is supplying water to the City of Flint. Visit Michigan.gov/FlintWater for more information.

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Sequential Sampling - City of Flint

A building's plumbing system and water service line (pipes) can be made up of different types of materials. Each type of material can affect drinking water differently, so it is useful to conduct what is known as "sequential sampling". Sequential sampling is where all water usage in a building is stopped for several hours, known as "stagnation". Next, water is collected from the faucet in a series of bottles. This is done without wasting any water or running the water before filling the bottles. The first few bottles represent water that was in contact with the faucet or building plumbing during stagnation. The later bottles represent water that was in contact with the water service line. These sample results can help decide whether treatment is working. Learn more at Michigan.gov/FlintWater