Drinking water quality · 2024

What's in Crofton Odenton, MD tap water

15 contaminants were measured in the Crofton Odenton, MD water system's 2024 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.

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Reporting year: 2024
Contaminants measured: 15
Over federal limit: 1
Approaching the limit: 1
Worst contaminant: Combined Radium
Service area: MD
Source: Utility CCR

At or above the federal limit

Combined Radium
Radionuclides · Reported level
8 pCi/L
limit 5 pCi/L · 1.6× the limit

Approaching the limit (≥ 80%)

Cadmium
Metals
0–4 ug/L
80% of the limit

Where your water comes from · EPA SDWIS

Crofton Odenton, MD's drinking water comes from ground water, drawn from 11 sources.

Source

11ground water

CROFTON MEADOWS II WELL 5 AA817314
CROFTON MEADOWS II WELL 6 AA941174
CROFTON MEADOWS II WELL 7 AA941172
CROFTON MEADOWS II WELL 8 AA941173
+ 7 more

Treatment

1treatment plant

CROFTON MEADOWS II WTP

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.

Radionuclides

Contaminant	Measured	Federal limit	Status
Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements.	8 pCi/LReported levelCrownsville Zone	5 pCi/LMCL	At or above the limit
+By source (5)— Crownsville Zone, Glen Burnie Zone, Central Zone +2 more Crownsville ZoneZone range1.6–8 pCi/L160% of limit Glen Burnie ZoneZone range0–2.8 pCi/L56% of limit Central ZoneZone range1.5–1.7 pCi/L34% of limit Crofton/Odenton ZoneZone range0.8–0.8 pCi/L16% of limit Gibson Island ZoneZone range0.3–0.3 pCi/L6% of limit
Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances.	2.1–10.5 pCi/LRangeCrownsville Zone	15 pCi/LMCL	Within the limit
+By source (5)— Crownsville Zone, Glen Burnie Zone, Central Zone +2 more Crownsville ZoneZone range2.1–10.5 pCi/L70% of limit Glen Burnie ZoneZone range0–9 pCi/L60% of limit Central ZoneZone range0–6.4 pCi/L43% of limit Crofton/Odenton ZoneZone range4.3–4.3 pCi/L29% of limit Gibson Island ZoneZone 0% of limit
Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances.	8.6 pCi/LReported levelCrownsville Zone	None set	Detected — no federal limit
+By source (3)— Crownsville Zone, Glen Burnie Zone, Central Zone Crownsville ZoneZone range0–8.6 pCi/L Glen Burnie ZoneZone range0–5.1 pCi/L Central ZoneZone range4.5–4.5 pCi/L

Metals

Contaminant	Measured	Federal limit	Status
Cadmium	0–4 ug/LRangeGlen Burnie Zone	None set	Approaching the limit
+By source (4)— Glen Burnie Zone, Crofton/Odenton Zone, Broad Creek Zone +1 more Glen Burnie ZoneZone range0–4 ug/L80% of limit Crofton/Odenton ZoneZone 0% of limit Broad Creek ZoneZone 0% of limit Crownsville ZoneZone 0% of limit
CopperA metal that enters water from corroding household plumbing.	0.38 mg/L90th percentileCrownsville Zone	1.3 mg/LAction level	Within the limit
+By source (8)— Crownsville Zone, Rose Haven Zone, Broad Creek Zone +5 more Crownsville ZoneZone avg0.38 mg/L29% of limit Rose Haven ZoneZone avg0.187 mg/L14% of limit Broad Creek ZoneZone avg0.03 mg/L2% of limit Herald Harbor ZoneZone avg0.03 mg/L2% of limit Glen Burnie ZoneZone avg0.025 mg/L2% of limit Central ZoneZone avg0.025 mg/L2% of limit Crofton/Odenton ZoneZone avg0.02 mg/L2% of limit Gibson Island ZoneZone avg0.02 mg/L2% of limit
BariumA metal from erosion of natural deposits and industrial discharge.	0.06 mg/LReported levelCentral Zone	2 mg/LMCL	Within the limit
+By source (6)— Central Zone, Broad Creek Zone, Crofton/Odenton Zone +3 more Central ZoneZone range0.01–0.06 mg/L3% of limit Broad Creek ZoneZone range0.04–0.04 mg/L2% of limit Crofton/Odenton ZoneZone range0.02–0.02 mg/L1% of limit Gibson Island ZoneZone range0.01–0.01 mg/L1% of limit Glen Burnie ZoneZone range0.01–0.01 mg/L1% of limit Crownsville ZoneZone range0.01–0.01 mg/L1% of limit
LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.	0.006 ug/L90th percentileCrownsville Zone	None set	Within the limit
+By source (4)— Crownsville Zone, Glen Burnie Zone, Central Zone +1 more Crownsville ZoneZone avg0.006 ug/L0% of limit Glen Burnie ZoneZone avgNot detected ug/L0% of limit Central ZoneZone avgNot detected ug/L0% of limit Rose Haven ZoneZone avgNot detected ug/L0% of limit
LithiumA naturally occurring element found in some groundwater.	13.1 ug/LReported levelCentral Zone	None set	Detected — no federal limit
+By source (4)— Central Zone, Broad Creek Zone, Crofton/Odenton Zone +1 more Central ZoneZone range0–13.1 ug/L Broad Creek ZoneZone range0–11.4 ug/L Crofton/Odenton ZoneZone range0–9.06 ug/L Glen Burnie ZoneZone
NickelA metal from natural deposits and industrial discharge.	11 ug/LReported levelCrofton/Odenton Zone	None set	Detected — no federal limit
+By source (4)— Crofton/Odenton Zone, Crownsville Zone, Glen Burnie Zone +1 more Crofton/Odenton ZoneZone range11–11 ug/L Crownsville ZoneZone range9–9 ug/L Glen Burnie ZoneZone range0–2.2 ug/L Broad Creek ZoneZone
SodiumA naturally occurring salt component.	20.5 mg/LReported levelCrownsville Zone	None set	Detected — no federal limit
+By source (7)— Crownsville Zone, Rose Haven Zone, Crofton/Odenton Zone +4 more Crownsville ZoneZone range20.5–20.5 mg/L Rose Haven ZoneZone range8.1–8.1 mg/L Crofton/Odenton ZoneZone range7.7–7.7 mg/L Glen Burnie ZoneZone range2.5–3.9 mg/L Herald Harbor ZoneZone range3.8–3.8 mg/L Broad Creek ZoneZone range3.6–3.6 mg/L Central ZoneZone range2.5–3.3 mg/L

Disinfection byproducts

Contaminant	Measured	Federal limit	Status
TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.	33.2 ug/LReported levelRose Haven Zone	None set	Within the limit
+By source (7)— Rose Haven Zone, Glen Burnie Zone, Crownsville Zone +4 more Rose Haven ZoneZone range33.2–33.2 ug/L42% of limit Glen Burnie ZoneZone range4.9–14.9 ug/L19% of limit Crownsville ZoneZone range8.9–9.3 ug/L12% of limit Gibson Island ZoneZone range3.8–3.8 ug/L5% of limit Broad Creek ZoneZone range3–3 ug/L4% of limit Crofton/Odenton ZoneZone range2.6–2.6 ug/L3% of limit Herald Harbor ZoneZone range1.5–1.5 ug/L2% of limit
HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.	21 ug/LReported levelGlen Burnie Zone	None set	Within the limit
+By source (7)— Glen Burnie Zone, Rose Haven Zone, Broad Creek Zone +4 more Glen Burnie ZoneZone range1–21 ug/L35% of limit Rose Haven ZoneZone range12.4–14.9 ug/L25% of limit Broad Creek ZoneZone range1.3–1.3 ug/L2% of limit Crownsville ZoneZone range0–1 ug/L2% of limit Crofton/Odenton ZoneZone 0% of limit Herald Harbor ZoneZone 0% of limit Gibson Island ZoneZone 0% of limit

Inorganic chemicals

Contaminant	Measured	Federal limit	Status
FluorideA mineral often added to drinking water to help prevent tooth decay.	1.26 mg/LReported levelGlen Burnie Zone	4 mg/LMCL	Within the limit
+By source (7)— Glen Burnie Zone, Herald Harbor Zone, Gibson Island Zone +4 more Glen Burnie ZoneZone range0.05–1.26 mg/L32% of limit Herald Harbor ZoneZone range0.43–1.23 mg/L31% of limit Gibson Island ZoneZone range0.49–1.12 mg/L28% of limit Central ZoneZone range0.12–0.92 mg/L23% of limit Rose Haven ZoneZone range0.23–0.9 mg/L23% of limit Broad Creek ZoneZone range0.13–0.89 mg/L22% of limit Crofton/Odenton ZoneZone range0.24–0.73 mg/L18% of limit
NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits.	1.3 mg/LReported levelGlen Burnie Zone	10 mg/LMCL	Within the limit
+By source (6)— Glen Burnie Zone, Crofton/Odenton Zone, Herald Harbor Zone +3 more Glen Burnie ZoneZone range0–1.3 mg/L13% of limit Crofton/Odenton ZoneZone 0% of limit Herald Harbor ZoneZone 0% of limit Gibson Island ZoneZone 0% of limit Rose Haven ZoneZone 0% of limit Crownsville ZoneZone 0% of limit

Other

Contaminant	Measured	Federal limit	Status
Chromium	2.8–3.3 ug/LRangeCentral Zone	None set	Within the limit
+By source (6)— Central Zone, Gibson Island Zone, Glen Burnie Zone +3 more Central ZoneZone range2.8–3.3 ug/L3% of limit Gibson Island ZoneZone range3–3 ug/L3% of limit Glen Burnie ZoneZone 0% of limit Crofton/Odenton ZoneZone 0% of limit Broad Creek ZoneZone 0% of limit Crownsville ZoneZone 0% of limit

Source: Crofton Odenton, 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.