2024 Detroit Metro Airport (DTW) Regulated Detected Contaminants Table
Lead and Copper Monitoring at the Customer's Tap in 2024 – Detroit Metro Airport (DTW)
Regulated ContaminantUnitYear SampledHealth Goal MCLGAction Level (AL)90th Percentile Value*Range of Individual Samples ResultsNumber of Samples Over ALMajor Sources in Drinking Water
Leadppb202401500 – 2.60Lead services lines, corrosion of household plumbing including fittings and fixtures; Erosion of natural deposits.
Copperppm20241.31.30.50 - 0.660Corrosion of household plumbing systems; Erosion of natural deposits.
*The 90th percentile value means 90 percent of the homes tested have lead and copper levels below the given 90th percentile value. If the 90th percentile value is above the AL additional requirements must be met.
2024 Disinfection By-Products - Monitoring in the Distribution System – Detroit Metro Airport (DTW)
Regulated ContaminantTest DateUnitHealth Goal MRDLGAllowed Level MRDLHighest Level RAARange of Quarterly ResultsViolationMajor Sources in Drinking Water
Chlorine Residual2024ppm440.710.27 – 1.19NoWater additive used to control microbes
Regulated ContaminantTest DateUnitHealth Goal MCLGAllowed Level MCLHighest Level LRAARange of Quarterly ResultsViolationMajor Sources in Drinking Water
(TTHM) Total Trihalomethanes2024ppbn/a803639NoBy-product of drinking water chlorination
(HAA5) Haloacetic Acids2024ppbn/a609.99.9NoBy-product of drinking water chlorination
Regulated ContaminantTest DateUnitHealth Goal MCLGAllowed Level MCL# of SamplesTotal DetectionsViolationMajor Sources in Drinking Water
Total Coliform2024MPNNDND840NoNaturally present in the environment
E.coli2024MPNNDND840NoHuman and animal fecal waste
These tables are based on tests conducted by the WCAA in the year 2024. The WCAA conducts tests throughout the year, only tests that show the presence of a substance or require special monitoring are presented in these tables. The data is representative of the water quality, but some may be more than one year old.