Drinking water quality · 2025
· Verified
What's in Sterling Heights, MI tap water
9 contaminants were measured in the Sterling Heights, MI water system's 2025 annual report. Each is shown below against its federal limit.
- Reporting year
- 2025
- Contaminants measured
- 9
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- MI
Where your water comes from · EPA SDWIS
Sterling Heights, MI buys its drinking water from GREAT LAKES WATER AUTHORITY.
Source
Treatment
Distribution
Also buys water from GREAT LAKES WATER AUTHORITY.
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 2 ng/LReported levelSystem-wide | 4 ng/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 35 ug/LRunning annual avgSystem-wide | 80 ug/LMCL | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 17 ug/LRunning annual avgSystem-wide | 60 ug/LMCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 1.02 mg/LRunning annual avgSystem-wide | 4 mg/LMRDLG | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0–0.3 mg/LRangeAt the tap | 1.3 mg/LMCLG | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 ug/LReported levelAt the tap | 0 ug/LMCLG | None detected |
| SodiumA naturally occurring salt component. | 5.3 mg/LReported levelSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.58 mg/LReported levelSystem-wide | 4 mg/LMCLG | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.33 mg/LReported levelSystem-wide | 10 mg/LMCLG | Within the limit |
People also ask about Sterling Heights, MI's water
+Is Sterling Heights, MI tap water safe to drink in 2025?
Every one of the 9 contaminants measured in Sterling Heights, MI's 2025 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Sterling Heights, MI tap water?
9 contaminants were measured in Sterling Heights, MI's 2025 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Sterling Heights, MI's 2025 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Sterling Heights, MI's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2025 report; a new report will replace it once the utility publishes its next annual update.