Public water system · MD0170018
ActiveRiverside Complex
At a glance
Riverside Complex (PWSID MD0170018) is an active community water system in Queen Anne's County, Maryland. It reports serving 60 people through 24 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
24
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Riverside Complex compare with other water systems in Queen Anne's County?
By EPA's size categories, Riverside Complex is a very small system (500 people or fewer). Queen Anne's County has 92 active public water systems. Its population served is well below the county average of 331 people per system, and accounts for 0.2% of the 30,426 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active community water system reports serving 6,703 people, so Riverside Complex is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Maryland has 422 active community water systems, 14% of the state's 2,992 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,870 Maryland systems (96%) list groundwater as their primary source.
Who owns and regulates Riverside Complex?
EPA lists Riverside Complex as owned by a local government. The MD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 19 of the 92 active systems in Queen Anne's County (21%) are also owned by a local government.
Does Riverside Complex have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2022. The violations listed here began between January 1995 and January 2022. By type: 7 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 7 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 7 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Riverside Complex: frequently asked questions
Who runs Riverside Complex?
Riverside Complex (PWSID MD0170018) is a community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Riverside Complex serve?
Riverside Complex reports serving 60 people through 24 service connections in Queen Anne's County, Maryland.
Where does Riverside Complex get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Riverside Complex have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Riverside Complex's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Riverside Complex's water quality report?
As a community water system, Riverside Complex must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Queen Anne's County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Stevensville | Queen Anne's | 9,155 | Community | Groundwater |
| Town of Centreville | Queen Anne's | 3,322 | Community | Groundwater |
| Bayside-Queenslanding | Queen Anne's | 1,030 | Community | Groundwater |
| Chesapeake College | Queen Anne's | 1,001 | Non-transient non-community | Groundwater |
| Prospect Bay | Queen Anne's | 913 | Community | Groundwater |
| Town of Queenstown | Queen Anne's | 705 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Riverside Complex, PWSID MD0170018, Maryland”, https://aquacensus.com/water-systems/maryland/riverside-complex-md0170018 (data as of October 1, 2026).