Is Crofton, MD Tap Water Safe to Drink?
Graded B, with 42 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
79.4/100
waterverge.com Crofton, MD — Water Quality Report
Crofton's drinking water received a grade of B (79.4 out of 100), indicating good water quality. The city's 2 water systems serve approximately 830 residents using groundwater.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 88 violations on record, including 0 health-based violations. 42 remain unresolved.
What to know about Crofton's water
Crofton ranks #56 out of 107 cities in Maryland for water quality, placing it below average in the state.
Crofton relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Crofton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Crofton, MD water safe to drink?
Crofton's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 830 residents using groundwater (wells).
Recent water quality updates for Crofton
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Crofton's water quality assessment. Grade: B (79.4/100).
Contaminants: Lead and Copper Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Lead and Copper Rule, Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4091). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3349). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Crofton's water supply.
Well within EPA limits.
Violation history
Crofton's water system has 88 total violations on record, including 0 health-based violations. 42 remain unresolved.
Flood & environmental risk
Anne Arundel County has experienced 10 federally declared disasters since 1971. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include South Fork Jabez Branch, Little Patuxent River, Patuxent River, Patuxent R At Gov Bridge Natural Area Nr Bowie.
Where does Crofton's water come from?
Crofton's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 830 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include South Fork Jabez Branch (river), Little Patuxent River (river), Patuxent River (river), Patuxent R At Gov Bridge Natural Area Nr Bowie (river).
What Crofton residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Crofton's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Crofton's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Crofton
Industrial polluters nearby
Reported releases to surface water by facilities near Crofton, ranked by pounds discharged annually.
Total reported releases to surface water: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
OLDCASTLE APG MID-ATLANTIC CROFTON MD ODENTON, MD21113 | Lead compounds | 0 | 1.0 mi |
U.S. DHS JAMES J. ROWLEY TRAINING CENTER LAUREL, MD20708 | — | — | 9.0 mi |
NATIONAL SECURITY AGENCY FIRING RANGE FORT GEORGE G MEADE, MD20755 | — | — | 8.2 mi |
FORT GEORGE G MEADE (RANGE) FORT GEORGE G MEADE, MD20755 | — | — | 6.5 mi |
FORT MEADE (USSS RANGE 1) FORT GEORGE G MEADE, MD20755 | — | — | 6.9 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Crofton
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- FORT GEORGE G MEADE5.1 mi
Source: EPA Superfund National Priorities List
Drought conditions
D2 — severe droughtCharles County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Anne Arundel County has experienced 10 federally declared disasters since 1971. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Crofton compares by contaminant
Explore where Crofton ranks among all Maryland cities for specific contaminants.
Water source & infrastructure
Where Crofton's water comes from
Crofton's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by private ownership and serves approximately 830 people through 2 water systems.
Water bodies near Crofton
Crofton is located near 4 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Crofton
| System Name | PWSID | Population | Source |
|---|---|---|---|
| SUNNY CREEK MHC | TX2460144 | 510 | GW |
| IDLEWOOD PARK | MD0080205 | 320 | GW |
How Crofton compares
Full Maryland rankings →Crofton's score of 79.4/100 is above the average of 60/100 among major Maryland cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Maryland rankings →Learn more about your water
Guides and resources related to Crofton's water quality findings.
Explore water quality across Williamson
Frequently asked questions
Is Crofton, MD tap water safe to drink?
Crofton's water quality earned a grade of B (79.4/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #56 out of 107 cities tested in Maryland.
What contaminants are in Crofton's water?
Lead was measured at 0.0 ppb (90th percentile). 88 violations are on record.
How is Crofton's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Crofton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Crofton's water come from?
Crofton's water is sourced from Groundwater. The city has 2 water systems serving approximately 830 residents.
Is Crofton's groundwater at risk of contamination?
Crofton uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 88 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Crofton's water compare to other cities?
Crofton ranks #56 out of 107 cities in Maryland (better than 48% of state cities) and #8277 out of 15744 cities nationally (47th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.