Drinking water quality · 2024
What's in Calvert Manor, MD tap water
26 contaminants were measured in the Calvert Manor, MD water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 26
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- MD
state-level CCR
Where your water comes from · EPA SDWIS
Calvert Manor, MD's drinking water comes from ground water, drawn from 2 sources.
Source
2ground water
- CALVERT MANOR 2 PG670013
- CALVERT MANOR 1 (NEW) PG941402
Treatment
1treatment plant
- WTP WELLS 2 + 3
Distribution
1storage units
Source: EPA SDWIS facilities inventory. Methodology.
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.
No federal drinking-water violations on record for this system.
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 1.06 mg/LReported levelSystem-wide | 4 mg/LMCLG | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.22 mg/L90th percentileAt the tap | 0.135 mg/LMCLG | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.012–0.012 mg/LRangeSystem-wide | 2 mg/LMCLG | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 mg/L90th percentileAt the tap | 0.0008 mg/LMCLG | None detected |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.5 mg/LReported levelSystem-wide | 4 mg/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. | 4.2 ug/LReported levelSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 1.35 ug/LRangeSystem-wide | None set | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Nitrate Nitrite | 0.5 mg/LReported levelSystem-wide | None set | Within the limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid, a chlorinated PFAS compound. | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)ADONA, a newer-generation PFAS replacement compound. | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid, a chlorinated PFAS compound. | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Hexafluoropropylene oxide dimer acidHFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. | Not detected ng/LReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)N-ethyl perfluorooctanesulfonamidoacetic acid, a PFAS-related compound. | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)N-methyl perfluorooctanesulfonamidoacetic acid, a PFAS-related compound. | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorodecanoic acid (PFDA)Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorododecanoic acid (PFDoA)Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | Not detected ng/LReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | Not detected ng/LReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorotetradecanoic acid (PFTeDA)Perfluorotetradecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluorotridecanoic acid (PFTrDA)Perfluorotridecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| Perfluoroundecanoic acid (PFUnA)Perfluoroundecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detectedReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | Not detected ng/LReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | Not detected ng/LReported levelCalvert Manor 1 (New) Pg941402 | None set | None detected |
+By source (2)— Calvert Manor 1 (New) Pg941402, Calvert Manor 2 Pg670013
| |||
Source: Calvert Manor, MD's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about Calvert Manor, MD's water
+Is Calvert Manor, MD tap water safe to drink in 2024?
Every one of the 26 contaminants measured in Calvert Manor, 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 Calvert Manor, MD tap water?
26 contaminants were measured in Calvert Manor, MD's 2024 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and disinfection byproducts. 4 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 Calvert Manor, 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 Calvert Manor, 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.
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