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PARKWAY SUBDIVISION WATER COMPANY

PWS ID: MD0080035 · LA PLATA, Maryland 20646

PARKWAY SUBDIVISION WATER COMPANY serves 50 people in LA PLATA, Maryland using Groundwater water sources. It has 117 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: PARKWAY SUBDIVISION WATER COMPANY

PARKWAY SUBDIVISION WATER COMPANY is a private-owned community water system that delivers drinking water to 50 residents in LA PLATA, Maryland (Charles County) through 13 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 117 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 101 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 35 violations (MR). 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. PARKWAY SUBDIVISION WATER COMPANY's 117 violations sit above the Maryland average. Statewide, 50 of 83 UCMR5-tested systems have reported PFAS detections (60.2%). 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
50
Total Violations
117
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
13
County
Charles
School/Daycare
No
MCL Violations
0
Monitoring Violations
101
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 35 2014
Nitrate MR 11 2023
Consumer Confidence Rule Other 9 2014
Lead and Copper Rule MR 6 2015
Nitrite MR 5 1993
Chromium MR 4 2020
Antimony, Total MR 4 2020
Arsenic MR 4 2020
Fluoride MR 4 2018
Cadmium MR 4 2020
Nickel MR 4 2020
Mercury MR 4 2020
Thallium, Total MR 4 2020
Barium MR 4 2020
Selenium MR 4 2020
Beryllium, Total MR 4 2020
Revised Total Coliform Rule RPT 3 2016

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 PARKWAY SUBDIVISION WATER COMPANY.

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 MD0080035 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
2023 Nitrate MR 11 SDWIS / MD0080035 / 1040
2020 Chromium MR 4 SDWIS / MD0080035 / 1020
2020 Antimony, Total MR 4 SDWIS / MD0080035 / 1074
2020 Arsenic MR 4 SDWIS / MD0080035 / 1005
2020 Cadmium MR 4 SDWIS / MD0080035 / 1015
2020 Nickel MR 4 SDWIS / MD0080035 / 1036
2020 Mercury MR 4 SDWIS / MD0080035 / 1035
2020 Thallium, Total MR 4 SDWIS / MD0080035 / 1085
2020 Barium MR 4 SDWIS / MD0080035 / 1010
2020 Selenium MR 4 SDWIS / MD0080035 / 1045
2020 Beryllium, Total MR 4 SDWIS / MD0080035 / 1075
2018 Fluoride MR 4 SDWIS / MD0080035 / 1025
2016 Revised Total Coliform Rule RPT 3 SDWIS / MD0080035 / 8000
2015 Lead and Copper Rule MR 6 SDWIS / MD0080035 / 5000
2014 Coliform (TCR) MR 35 SDWIS / MD0080035 / 3100

How PARKWAY SUBDIVISION WATER COMPANY Compares

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

Metric PARKWAY SUBDIVISION WATER COMPANY Maryland avg Federal benchmark
Total violations 117 18.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 50 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is PARKWAY SUBDIVISION WATER COMPANY water safe to drink? ▼
PARKWAY SUBDIVISION WATER COMPANY (PWS ID: MD0080035) has 117 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Groundwater sources.
How many people does PARKWAY SUBDIVISION WATER COMPANY serve? ▼
PARKWAY SUBDIVISION WATER COMPANY serves 50 people in LA PLATA, Maryland. It is a Private-owned system using Groundwater water sources with 13 service connections.
What type of violations does PARKWAY SUBDIVISION WATER COMPANY have? ▼
PARKWAY SUBDIVISION WATER COMPANY has 117 total violations: 0 health-based violations (MCL exceedances or treatment failures), 101 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in PARKWAY SUBDIVISION WATER COMPANY water? ▼
No PFAS testing data is available for PARKWAY SUBDIVISION WATER COMPANY under the EPA's UCMR5 monitoring program.
What water source does PARKWAY SUBDIVISION WATER COMPANY use? ▼
PARKWAY SUBDIVISION WATER COMPANY 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.

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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.

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