PWSID VA6153675
QUANTICO MARINE BASE-MAINSIDE
Community water system based in Mcincr, Mcb Quantico, VA
Service area on file with EPA: Prince William County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.
- Population served
- 19k
- Source
- Surface water
- Status
- Active
At a glance
1 above the safety limit, 1 detection to watch
-
EPA's Lead and Copper Rule Improvements treat galvanized service lines as lead, because galvanized iron pipe installed downstream of an old lead component absorbs and continues to release lead for years after the lead source is removed.
From the utility's published inventory · See details below
-
Public health experts agree no amount of lead in drinking water is safe. Even low levels can affect children's brain development.
Most recent lead and copper test · See details below
-
CDC's My Water's Fluoride listing reports this system adjusts fluoride to the recommended level, or buys water from a system that does.
Per CDC My Water's Fluoride · See details below
Past 5 years: 8 health-based violations on file, all marked Resolved or Archived. See compliance history below.
Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.
Lead service line inventory
Lead or galvanized-requiring-replacement service lines confirmed in this system
QUANTICO MARINE BASE-MAINSIDE reports 0 confirmed lead service lines, 7 galvanized requiring replacement, 1,256 non-lead, 52 unknown (total 1,315) in its Virginia Department of Health LCRR submission. EPA's Lead and Copper Rule Revisions treat unknown and galvanized-requiring-replacement lines as lead for notification and replacement scheduling until verified.
- 0 confirmed lead service lines
- 7 galvanized requiring replacement (LCRI treats these as lead)
- 52 unknown (4.0% of total)
- 1,256 confirmed non-lead (95.5%)
- 1,315 total service lines in the system
Why this is a health concern. A galvanized iron service line that was ever installed downstream of a historic lead component (a lead service line, a lead gooseneck connector, or lead solder) absorbed lead into its corrosion layer over decades. The pipe continues to release that accumulated lead into water for years after the upstream lead source is removed. That is why EPA's LCRI treats GRR lines as lead and requires their replacement on the same 10-year schedule as confirmed lead lines. Read our plain-English lead guide.
What to do if your service line might be lead
- Ask your utility to check the service-line classification for your specific address. Many utilities provide a public address-lookup tool linked from the inventory page.
- Get on the replacement queue. Under the LCRI, utilities must replace all lead and galvanized-requiring- replacement lines within 10 years (clock generally starts November 2027). Some prioritize requests.
- Until the line is replaced: flush the tap 30 seconds after long stagnation, use cold water for drinking and cooking, and consider an NSF/ANSI 53 lead-rated tap filter.
- Talk to your clinician about a blood lead test for anyone in the home, especially a pregnant person or a child under 6. Lead in drinking water guide.
Inventory data sourced from QUANTICO MARINE BASE-MAINSIDE ( retrieved May 24, 2026 ; curator confidence: high ). Confirmed against the original source automatically each month; see methodology.
Lead and copper test results
The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.
Why only lead and copper, and not arsenic, nitrate, or others?
EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).
| Contaminant | Most recent | Date | Risk |
|---|---|---|---|
| PB90 | 0.001976 mg/L | December 31, 2025 | Caution |
Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.
PFAS and emerging contaminants
This system was tested 115 times under EPA's latest PFAS monitoring program; 0 of the 30 chemicals tested were detected.
What is this testing program?
EPA's fifth Unregulated Contaminant Monitoring Rule cycle (UCMR 5, 2023 to 2025) required every public water system serving over 3,300 people to test for 29 per- and polyfluoroalkyl substances (PFAS) plus lithium; 30 chemicals in total. Most recent detection per chemical shown below.
No detections
All UCMR 5 samples for this system were below the EPA-defined minimum reporting level (MRL) for every tested contaminant. Substances that were tested but not detected are listed below.
Tested but not detected (30 contaminants)
EPA tested for these substances and every sample was below the minimum reporting level. Absence of detection does not mean true zero; it means below the laboratory's quantitation threshold.
Data from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) , last refreshed May 24, 2026.
Fluoride
Per CDC My Water's Fluoride
QUANTICO MARINE BASE-MAINSIDE adds fluoride to its drinking water.
CDC classifies a system as fluoridated when it adjusts fluoride to the recommended level, or when it buys water from a system that does. The U.S. Public Health Service recommends 0.7 mg/L for community water fluoridation.
Source: CDC My Water's Fluoride, listed under QUANTICO MARINE BASE-MAINSIDE (Prince William County). Verify on CDC's site .
Area context
Prince William County, VA (2020 data)
- Community water systems
- 7 of 12 add fluoride
- Population on fluoridated water
- 368,976 of 372,091 (99.2%)
Virginia statewide (2020 data)
- Population on fluoridated water
- 6,713,205 of 7,027,639 (95.5%)
- Community water systems adding fluoride
- 588 of 1,181
Data from CDC My Water's Fluoride (per-system status) , last refreshed May 19, 2026.
Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.
Recorded contaminant measurements (from violations)
When this system exceeded a regulatory limit and EPA recorded the measured value, that value is shown here. These are not routine sample results: they are the values the violation was triggered on.
| Period | Contaminant | Measured | Federal MCL | Status |
|---|---|---|---|---|
| October 1, 2025 | Tthm | 0.092MG/L | 0.08 MG/L | Health-based |
| October 1, 2025 | Tthm | 0.092MG/L | 0.08 MG/L | Health-based |
| July 1, 2025 | Tthm | 0.093MG/L | 0.08 MG/L | Health-based |
| July 1, 2025 | Tthm | 0.093MG/L | 0.08 MG/L | Health-based |
| July 1, 2025 | Tthm | 0.093MG/L | 0.08 MG/L | Health-based |
| April 1, 2025 | Tthm | 88UG/L | 0.08 UG/L | Health-based |
| April 1, 2025 | Tthm | 88UG/L | 0.08 UG/L | Health-based |
| April 1, 2025 | Tthm | 88UG/L | 0.08 UG/L | Health-based |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Compliance history
EPA-recorded violations against this system over the last 5 years.
How to read this section
Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.
8 resolved health-based violations in the last 5 years
All 8 health-based violations in the last 5 years are marked Resolved or Archived. Past violations do not represent current water quality.
| Period start | Contaminant | What happened | Measured level | Status |
|---|---|---|---|---|
| October 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 0.092 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 0.092 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 0.093 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 0.093 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 0.093 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 88 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 88 UG/L
MCL 0.080 UG/L | Resolved |
| April 1, 2025 | Tthm | Maximum Contaminant Level Violation, Average | 88 UG/L
MCL 0.080 UG/L | Resolved |
99 older violation s (5-10 years ago) · 60 health-based, 39 paperwork , all resolved
| Period start | Relates to | Item | Measured level | Status |
|---|---|---|---|---|
| October 1, 2019 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| October 1, 2019 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| April 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.082 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.082 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.082 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.082 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.082 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Cadmium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Cadmium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Chromium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Chromium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Nickel | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Nickel | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Antimony, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Antimony, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Thallium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Thallium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Selenium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Selenium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Cadmium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Chromium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Nickel | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Antimony, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Thallium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Selenium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2019 | Beryllium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Beryllium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Beryllium, Total | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Barium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Barium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Barium | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Arsenic | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Arsenic | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Arsenic | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Mercury | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Mercury | Monitoring, Regular | — | Resolved |
| January 1, 2019 | Mercury | Monitoring, Regular | — | Resolved |
| October 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.062 MG/L
MCL 0.060 MG/L | Resolved |
| October 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.062 MG/L
MCL 0.060 MG/L | Resolved |
| October 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.062 MG/L
MCL 0.060 MG/L | Resolved |
| October 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.062 MG/L
MCL 0.060 MG/L | Resolved |
| October 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.062 MG/L
MCL 0.060 MG/L | Resolved |
| October 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.083 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2018 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | — | Resolved |
| October 1, 2018 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | — | Resolved |
| October 1, 2018 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | — | Resolved |
| July 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.067 MG/L
MCL 0.060 MG/L | Resolved |
| July 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.067 MG/L
MCL 0.060 MG/L | Resolved |
| July 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.067 MG/L
MCL 0.060 MG/L | Resolved |
| July 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.067 MG/L
MCL 0.060 MG/L | Resolved |
| July 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.067 MG/L
MCL 0.060 MG/L | Resolved |
| July 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.088 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.088 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.088 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.088 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.088 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| April 1, 2018 | Total Haloacetic Acids (Haa5) | Maximum Contaminant Level Violation, Average | 0.064 MG/L
MCL 0.060 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| January 1, 2018 | Tthm | Maximum Contaminant Level Violation, Average | 0.100 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| October 1, 2017 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| October 1, 2017 | Carbon, Total | Monitoring and Reporting (DBP) | — | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| October 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.110 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| July 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.098 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
| April 1, 2017 | Tthm | Maximum Contaminant Level Violation, Average | 0.086 MG/L
MCL 0.080 MG/L | Resolved |
Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.
Where to see every contaminant this utility tested for
EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).
Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.
How to find QUANTICO MARINE BASE-MAINSIDE's CCR:
- Search the web for "QUANTICO MARINE BASE-MAINSIDE consumer confidence report" . The PDF is usually on the utility's own website.
- Or call the utility directly. Their phone number is in the contact section below.
Other water systems in Prince William County, VA
Compare nearby utilities by population served.
- PWCSA - EAST
169k served · Prince William County
- PWCSA - WEST
136k served · Prince William County
- DALE CITY
72k served · Prince William County
- QUANTICO MCB-CAMP BARRETT
8,689 served · Prince William County
- BULL RUN MOUNTAIN/EVERGREEN (BRME)
1,803 served · Prince William County
Contact this utility
Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.
- Administrator
- GARDNER, OMAR
- Phone
- 703-432-0539
- Mailing address
- 2006 Hawkins Ave. NREA DivisionMCINCR, MCB QUANTICO, VA 22134
Where this page's data comes from
Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.
- EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
- EPA UCMR 5 (Unregulated Contaminant Monitoring Rule) — last refreshed May 24, 2026 (PFAS and lithium).
- Lead service line inventory — last refreshed May 24, 2026 (from the utility's reported inventory).
- CDC My Water's Fluoride — last refreshed May 19, 2026 (per-system Yes/No fluoridation status).
- CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).
Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.