Public water system · PA7010879
ActiveRaven Rock Mountain Complex
At a glance
Raven Rock Mountain Complex (PWSID PA7010879) is an active non-transient non-community water system in Adams County, District of Columbia. It reports serving 150 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Raven Rock Mountain Complex compare with other water systems in Adams County?
By EPA's size categories, Raven Rock Mountain Complex is a very small system (500 people or fewer). Adams County has 1 active public water system, and Raven Rock Mountain Complex is the largest of them by population served. Its population served is roughly in line with the county average of 150 people per system, and accounts for 100% of the 150 people reported by systems filed under the county. Across District of Columbia, the 12 active systems average 58,113 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Raven Rock Mountain Complex is about 65% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. District of Columbia has 7 active non-transient non-community water systems, 58% of the state's 12 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6 District of Columbia systems (50%) list groundwater as their primary source.
Who owns and regulates Raven Rock Mountain Complex?
EPA lists Raven Rock Mountain Complex as owned by the federal government. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 1 active systems in Adams County (100%) are also owned by the federal government.
Does Raven Rock Mountain Complex have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. The violations listed here began between January 2016 and January 2016. By type: 12 monitoring and reporting. The contaminants or rules involved are Di(2-ethylhexyl) phthalate, Heptachlor epoxide, Hexachlorobenzene and Benzo(a)pyrene. EPA lists 12 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 |
|---|---|---|---|---|
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlor epoxidecode 2067 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorobenzenecode 2274 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzo(a)pyrenecode 2306 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Lindane (gamma-BHC)code 2010 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Glyphosatecode 2034 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Alachlor (Lasso)code 2051 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
The 12 most recent 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.
Raven Rock Mountain Complex: frequently asked questions
Who runs Raven Rock Mountain Complex?
Raven Rock Mountain Complex (PWSID PA7010879) is a non-transient non-community water system owned by the federal government. It is regulated by the PA state drinking water program.
How many people does Raven Rock Mountain Complex serve?
Raven Rock Mountain Complex reports serving 150 people through 1 service connection in Adams County, District of Columbia.
Where does Raven Rock Mountain 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 Raven Rock Mountain Complex have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. 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 Raven Rock Mountain 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2016. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Raven Rock Mountain Complex's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Raven Rock Mountain Complex is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
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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, “Raven Rock Mountain Complex, PWSID PA7010879, District of Columbia”, https://aquacensus.com/water-systems/district-of-columbia/raven-rock-mountain-complex-pa7010879 (data as of October 1, 2026).