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Tap water quality report

The Calverton School

EPA monitoring tested this supplier for 70 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
13
detected
461
people served
9
health-based violations
Maryland rankingsLead in MarylandPFAS in Maryland
Water source
Ground water
Ownership
Private
Counties served
Calvert

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

9
health-based violations
50
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2007-05-01 → 2007-05-31
MCL Health-based Resolved 2005-07-01 → 2005-07-31
MCL Health-based Resolved 2005-05-01 → 2005-05-31
MCL Health-based Resolved 2005-05-01 → 2005-05-31
MCL Health-based Resolved 2005-05-01 → 2005-05-31
Other Monitoring Unaddressed 2025-10-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2025
TTHM
5.43 µg/L 6.8%
of the EPA limit 80 µg/L
worst single sample: 5.7 µg/L
7/12 SYR4 2012–2019
Chloroform
5.732 µg/L
No EPA limit set
worst single sample: 6.09 µg/L
5/6 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
10.6 µg/L 18%
of the EPA limit 60 µg/L
worst single sample: 11.9 µg/L
5/12 SYR4 2012–2019
Arsenic
5 µg/L 50%
of the EPA limit 10 µg/L
 4/47 SYR4 2012–2019
Bromodichloromethane
3.5345 µg/L
No EPA limit set
worst single sample: 4.04 µg/L
4/6 SYR4 2012–2018
Dichloroacetic Acid
3.975 µg/L
No EPA limit set
worst single sample: 4 µg/L
2/3 SYR4 2012–2014
Nitrate
1100 µg/L 11%
of the EPA limit 10000 µg/L
 2/8 SYR4 2012–2015
Trichloroacetic Acid
1.385 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
2/3 SYR4 2012–2014
Barium
2 µg/L 0.1%
of the EPA limit 2000 µg/L
 1/4 SYR4 2014–2018
Chromium
3 µg/L 3%
of the EPA limit 100 µg/L
 1/4 SYR4 2014–2018
Dibromochloromethane
2.83 µg/L
No EPA limit set
 1/6 SYR4 2012–2018
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/3 SYR4 2014–2017
57 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FORGETTE, ADRIENNE
Phone
410-535-0216
Email
[email protected]

Frequently asked questions about The Calverton School

Is The Calverton School tap water safe to drink?

EPA monitoring detected 13 contaminants in The Calverton School's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in The Calverton School's water?

EPA monitoring detected Lead, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Arsenic, and others. The full list with the level and data source for each is above.

How many people does The Calverton School serve?

The Calverton School reports serving 461 people in Maryland, per its EPA record.

Has The Calverton School had any water quality violations?

The EPA has 50 violations on file for The Calverton School, of which 9 are health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.