Drinking water quality · 2024
· Verified
What's in Boh Nak Mhp, MD tap water
Only 5 of 27 core regulated contaminants were reported for Boh Nak Mhp, MD. What was measured is not clean — but most of the picture is missing.
- !2 contaminants at or above a federal limit — worst is PFOS at 9.3x
- !3 contaminants within 20% of a limit
- !5 of 27 core regulated contaminants reported — 22 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −60 contaminants at or above a federal limit
- −12 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −22 core regulated contaminants never reported (5/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- PFOS9.3× the federal limit37 ng/L · limit 4 ng/L
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 95% of U.S. systems
- PFOA5.8× the federal limit23 ng/L · limit 4 ng/L
Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 95% of U.S. systems
- Perfluorohexanesulfonic acid85% of the federal limit8.5 ng/L · limit 10 ng/L
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
higher than 70% of U.S. systems
- Nitrate Nitrite83% of the federal limit8.3 mg/L · limit 10 mg/L
higher than 95% of U.S. systems
- Nitrate81% of the federal limit8.1 mg/L · limit 10 mg/L
Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
higher than 95% of U.S. systems
+5 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Perfluorononanoic acid | 1.1 ng/L | 10 ng/L |
| Barium | 0.199 mg/L | 2 mg/L |
| Copper | Not detected mg/L | 1.3 mg/L |
| Lead | Not detected ug/L | 15 ug/L |
| Perfluorobutanesulfonic acid | 9.4 ng/L | — |
What this report doesn't tell you
22 of the 27 contaminants a community water system normally reports do not appear anywhere in Boh Nak Mhp, MD's data. Absent is not the same as absent-from-the-water — it means nobody published a number.