TapGraded
C

GREAT LAKES WATER AUTHORITY

Detroit, MI 0

GREAT LAKES WATER AUTHORITY serves 0 people in Detroit, MI. It has 3 health-based violations in the last 5 years. TapGraded gives this system a C.

Score breakdown

Health-based violations (5y)

3

Monitoring violations (5y)

3

Currently unaddressed

0

Overall score

70/100

Violation history (last 5 years)

2021
2022
2023
2024
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

No lead sampling results on record for this period.

PFAS (UCMR5 occurrence data)

This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).

System details

System type
Community water system
Water source
Surface water
Ownership
Local government
Service connections
1

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Frequently asked questions

Is Detroit, MI tap water safe to drink?

GREAT LAKES WATER AUTHORITY has 3 health-based violations in the last 5 years. TapGraded gives this system a C.

Does GREAT LAKES WATER AUTHORITY have lead in its water?

No lead sampling results on record for this period.

Has PFAS been detected in GREAT LAKES WATER AUTHORITY's water?

This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).

Source: EPA SDWIS/ECHO · Data as of 2026Q2