Hydrohistorian
Advenir French Quarter
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| PURCHASED WATER FROM DENVER CO0116001 | Consecutive connection (purchased) | Surface water · from DENVER WATER BOARD |
These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.
Wholesale connections
Buys water from DENVER WATER BOARD.
DWR structures that name this system
Source Probable join · fetched 2026-09-09 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
No DWR structure on file records this system as its contact, and none of its EPA intakes matches a structure name in its districts. DWR records a contact on only a fraction of structures, and only for districts fetched from its live service, so this is absence of a record, not evidence of no rights.
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
Nothing open today, but 1 health-based violation appears on the federal record historically. The history is below.
EPA's own summary: violations in 3 of the last 12 quarters.
What happened
All 1 violation record on file, grouped into the 1 distinct thing EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (1 of 1)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2019-12-03 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2020-06-12) |
What the regulator did about it
51 enforcement actions on this system's federal record. In Colorado the state is the primacy agency, so most actions are the state's; EPA acts directly on tribal systems and when it steps in.
| Date | Action | By |
|---|---|---|
| 2024-02-05 | St Violation/Reminder Notice | state |
| 2024-02-05 | St Public Notif requested | state |
| 2024-01-31 | St Compliance achieved late submittal |
state |
| 2023-07-10 | St Compliance achieved System collected next required routine sampling in 2023 lmf 8/10/2023 |
state |
| 2023-02-27 | St Compliance achieved | state |
| 2023-01-09 | St Violation/Reminder Notice | state |
| 2022-10-12 | St Violation/Reminder Notice | state |
| 2022-10-12 | St Public Notif requested | state |
| 2022-10-12 | St Violation/Reminder Notice | state |
| 2022-07-07 | St Violation/Reminder Notice | state |
| 2020-12-29 | St Violation/Reminder Notice | state |
| 2020-12-29 | St Public Notif requested | state |
| 2020-12-29 | St Compliance achieved | state |
| 2020-12-23 | St Compliance achieved System collected next required routine monitoring sampling lmf 1/27/2021 |
state |
| 2020-12-18 | St Public Notif received System submitted a T3 PN on 1/5/2021, date of violation 12/27/2019 and date of PN distributed 12/18/2020 lmf 1/6/2021 |
state |
| 2020-12-04 | St Compliance achieved System completed monitoring plan with all required elements lmf 12/4/2020 |
state |
| 2020-10-19 | St Compliance achieved System sampled DBP and the sites are now approved in the Portal lmf 11/6/2020 |
state |
| 2020-09-02 | St Compliance achieved System collected next required routine sampling lmf 11/6/2020 |
state |
| 2020-07-09 | St Violation/Reminder Notice | state |
| 2020-07-09 | St Public Notif requested | state |
20 most recent of 51; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.0 mg/L (sampling period ending 2025-12-31) against an action level of 0.015 mg/L, below it. 5 results on file.
The action level is not a health limit: it is the level at which the rule requires a system to act (corrosion control, public education, and in some cases replacing lead service lines). Lead mostly enters water from household plumbing, so a system-wide percentile does not tell you what comes out of one tap.
Violation, enforcement and lead/copper records are EPA SDWIS federal reporting, fetched monthly; the summary is EPA ECHO. Code names come from EPA's own REF_CODE_VALUE table. SDWIS carries violations, not routine sample results — nitrate, disinfection by-product and PFAS values are not in it, and a clean record here means nothing was reported as a violation, not that nothing was ever detected. For what was measured, ask the system for its Consumer Confidence Report.
PFAS and lithium: EPA's UCMR 5 monitoring, 2023–2025
Source Register of another agency · fetched 2026-09-09 · verify at EPA UCMR occurrence data ↗
5 samples, 120 results, 2024-02-14 to 2024-11-05. No PFAS was detected at the reporting limits; lithium was not detected.
| Contaminant | Results | Detected | Highest, µg/L | Reporting limit |
|---|---|---|---|---|
| HFPO-DA | 4 | 0 | < 0.005 | 0.005 |
| PFHxS | 4 | 0 | < 0.003 | 0.003 |
| PFNA | 4 | 0 | < 0.004 | 0.004 |
| PFOA | 4 | 0 | < 0.004 | 0.004 |
| PFOS | 4 | 0 | < 0.004 | 0.004 |
| lithium | 4 | 0 | < 9.0 | 9.0 |
Rows shown: every detected contaminant plus the regulated PFAS and lithium; the rest were below their reporting limits. These are UCMR monitoring samples, not compliance samples. EPA's April 2024 rule set 4.0 ng/L (0.004 µg/L) for PFOA and PFOS, the same as UCMR 5's reporting limit, so any detection of either is at or above it; the rule's compliance date and its other limits have been under revision since 2025 and are not applied here. State PFAS sampling is on CDPHE's pages ↗.
Common questions
Who provides drinking water in Denver, Colorado?
Advenir French Quarter is the public water system serving 3,447 people, from purchased surface water. Its EPA public water system id is CO0116104.
Where does Advenir French Quarter get its water?
Advenir French Quarter reports purchased surface water as its primary source. EPA lists its source facilities as PURCHASED WATER FROM DENVER CO0116001.
Does Advenir French Quarter have any drinking water violations?
EPA's compliance record shows no open health-based violations for Advenir French Quarter at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
The record
EPA SDWIS federal reporting as of 2026-09-08; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →