Drinking water quality · 2024
· Verified
· PWSID MD1040022
What's in Calverton School, MD tap water
Only 7 of 27 core regulated contaminants were reported for Calverton School, MD. What was measured is clean — but most of the picture is missing.
- !1 open monitoring or reporting violation
- !7 of 27 core regulated contaminants reported — 20 never appear in this report
- ✓Nothing over a federal limit
+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.
- −0 contaminants at or above a federal limit
- −0 contaminants within 20% of a limit
- −0 open health-based violations
- −3 open monitoring / reporting violations
- −2 health-based violations resolved in the last 5 years
- −19 core regulated contaminants never reported (7/27)
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 →+8 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| TTHM | 56 ug/L | 80 ug/L |
| HAA5 | 36 ug/L | 60 ug/L |
| Combined Radium | 0.8 pCi/L | 5 pCi/L |
| Copper | 0.104 mg/L | 1.3 mg/L |
| Chlorine | 0.3 mg/L | 4 mg/L |
| Fluoride | 0.194 mg/L | 4 mg/L |
| Lead | 0.0 mg/L | 0.015 mg/L |
| Gross Beta Particle Activity | 19.1 pCi/L | — |
What this report doesn't tell you
20 of the 27 contaminants a community water system normally reports do not appear anywhere in Calverton School, MD's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
Where your water comes from · EPA SDWIS
Calverton School, MD's drinking water comes from ground water, drawn from 2 sources.
Source
- CALVERTON SCHOOL (UPPER SCHOOL CA880380
- DORM WELL - WELL 03_ CA120467
Treatment
- WTP UPPER SCHOOL WELL
- DORM WTP-WELL 3
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based3 violations on record · most recent May 2007resolved
- Treatment technique violationHealth-based1 violation on record · most recent Oct 2024resolved
- Other1 violation on record · most recent Oct 20251 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗