Drinking water quality · 2024
· Verified
What's in Calverton School, MD tap water
8 contaminants were measured in the Calverton School, MD water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 8
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- MD
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 ↗
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 56 ug/LRunning annual avgSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 36 ug/LRunning annual avgSystem-wide | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.8 pCi/LMaximumHighe st Value | 5 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 19.1 pCi/LMaximumHighe st Value | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.104 mg/L90th percentile90TH Percentile: 90% of your water utility levels were less than | 1.3 mg/LAction level | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0 mg/L90th percentileAt the tap | 0.015 mg/LAction level | None detected |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.3 mg/LRunning annual avgSystem-wide | 4 mg/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.194 mg/LMaximumSystem-wide | 4 mg/LMCL | Within the limit |
People also ask about Calverton School, MD's water
+Is Calverton School, MD tap water safe to drink in 2024?
Every one of the 8 contaminants measured in Calverton School, MD's 2024 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 Calverton School, MD tap water?
8 contaminants were measured in Calverton School, MD's 2024 Consumer Confidence Report, spanning disinfection byproducts, metals, and radionuclides. 5 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 Calverton School, MD's 2024 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 Calverton School, MD'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 2024 report; a new report will replace it once the utility publishes its next annual update.