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Community Water System · PWS MD0050205

Cedar Mobile Home Park

Columbia, Maryland 21045 - drinking water served from groundwater sources to 300 people, tracked in EPA SDWIS and UCMR5.

300
People served
348
EPA violations
203
Health-based
Untested
UCMR5 result

The verdict

EPA records 348 drinking-water violations at Cedar Mobile Home Park, 58% of them health-based - above the Maryland per-system average.

348
Total EPA violations on record
58%
Health-based (MCL / treatment failure)
300
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Cedar Mobile Home Park

Cedar Mobile Home Park is a private-owned community water system that delivers drinking water to 300 residents in Columbia, Maryland (Caroline County) through 41 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 348 total violations for this system , of which 203 (58%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 137 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Arsenic, recorded in 203 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Maryland, EPA tracks 3,215 public water systems serving 6,070,211 people, with 60,496 cumulative violations and 18,132 health-based violations on record. About 80% of systems in the state carry at least one violation, and state-wide the average per system is 18.8 violations. Statewide, 50 of 83 UCMR5-tested systems have reported PFAS detections (60.2%).

Cedar Mobile Home Park's 348 violations sit above the Maryland average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
300
Total Violations
348
Health-Based Violations
203
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
41
County
Caroline
School/Daycare
No
MCL Violations
203
Monitoring Violations
137
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 203 2018
Coliform (TCR) MR 51 2012
Lead and Copper Rule MR 29 2023
Arsenic MR 12 2006
Nitrate MR 11 2006
Revised Total Coliform Rule MON 6 2025
Consumer Confidence Rule Other 5 2025
Total Haloacetic Acids (HAA5) MR 4 2018
TTHM MR 4 2018
Mercury MR 2 2004
Beryllium, Total MR 2 2004
Selenium MR 2 2004
Fluoride MR 2 2004
Barium MR 2 2004
Antimony, Total MR 2 2004
Chromium MR 2 2004
Thallium, Total MR 2 2004
Nickel MR 2 2004
Cadmium MR 2 2004

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Cedar Mobile Home Park.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID MD0050205 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Maryland Drinking Water Authority

Maryland's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find MD regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Revised Total Coliform Rule MON 6 SDWIS / MD0050205 / 8000
2025 Consumer Confidence Rule Other 5 SDWIS / MD0050205 / 7000
2023 Lead and Copper Rule MR 29 SDWIS / MD0050205 / 5000
2018 Arsenic MCL 203 SDWIS / MD0050205 / 1005
2018 Total Haloacetic Acids (HAA5) MR 4 SDWIS / MD0050205 / 2456
2018 TTHM MR 4 SDWIS / MD0050205 / 2950
2012 Coliform (TCR) MR 51 SDWIS / MD0050205 / 3100
2006 Arsenic MR 12 SDWIS / MD0050205 / 1005
2006 Nitrate MR 11 SDWIS / MD0050205 / 1040
2004 Mercury MR 2 SDWIS / MD0050205 / 1035
2004 Beryllium, Total MR 2 SDWIS / MD0050205 / 1075
2004 Selenium MR 2 SDWIS / MD0050205 / 1045
2004 Fluoride MR 2 SDWIS / MD0050205 / 1025
2004 Barium MR 2 SDWIS / MD0050205 / 1010
2004 Antimony, Total MR 2 SDWIS / MD0050205 / 1074

How Cedar Mobile Home Park Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Cedar Mobile Home Park Maryland avg Federal benchmark
Total violations 348 18.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 203 5.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 300 1,888 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,215 regulated public water systems in Maryland.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Cedar Mobile Home Park water safe to drink? ▼
Cedar Mobile Home Park (PWS ID: MD0050205) has 348 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 300 people using Groundwater sources.
How many people does Cedar Mobile Home Park serve? ▼
Cedar Mobile Home Park serves 300 people in Columbia, Maryland. It is a Private-owned system using Groundwater water sources with 41 service connections.
What type of violations does Cedar Mobile Home Park have? ▼
Cedar Mobile Home Park has 348 total violations: 203 health-based violations (MCL exceedances or treatment failures), 137 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Cedar Mobile Home Park water? ▼
No PFAS testing data is available for Cedar Mobile Home Park under the EPA's UCMR5 monitoring program.
What water source does Cedar Mobile Home Park use? ▼
Cedar Mobile Home Park uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.