Drinking water quality
What's in City of Annapolis, MD tap water
8 contaminants were measured in the City of Annapolis, MD water system's most recent annual report. Each is shown below against its federal limit.
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine | 1 mg/LAverage | 4 mg/LMRDL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5 | 2 ug/LAverage | 60 ug/LMCL | Within the limit |
| TTHM | 5–10.3 ug/LReported Level | 80 ug/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Fluoride | 0.67 mg/LReported Level | 4 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Barium | 0.012 mg/LReported Level | 2 mg/LMCL | Within the limit |
| Copper | 0–0.04 mg/LRange | 1.3 mg/LAL | Within the limit |
| Lead | 0–3.4 ug/LRange | 15 ug/LAL | Within the limit |
| Lithium | 8.4 ug/LReported Level | None set | Detected — no federal limit |
Every figure here is transcribed verbatim from City of Annapolis, MD's annual Consumer Confidence Report, cross-checked by a second model, and approved by a person before publishing. Numbers are the utility's own — a water-quality report covers an entire service area, not a single address.