Hydrohistorian
City of Florence
Serves Florence.
Boundary traced from WSP. About 13 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| ROCKVALE INFS AND WELLS RAW WATER | Intake | Surface water |
| ARKANSAS RVR MINNEQUA CANAL | Intake | Surface water |
| NEWLIN CREEK | Intake | Surface water |
| ADOBE CREEK | Intake | Surface water |
| MINERAL CREEK | Intake | Surface water |
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
Sells water to 7 systems: COAL CREEK TOWN OF, EAST FLORENCE WA, ROCKVALE TOWN OF, WATER ON THE SPOT, WILLIAMSBURG TOWN OF, MOUNTAINDALE CG AND CABINS, SELLEN WATER.
DWR structures that name this system
Source Probable join · fetched 2026-10-06 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
1 structure on DWR's record 1 matches an EPA intake by name. A match says who DWR lists, not who owns the water: a ditch company can own the headgate while the system owns shares, and a consultant can be the contact. The dossier holds the decree.
| Structure | Type | Source | District | Matched on |
|---|---|---|---|---|
| MINERAL CREEK DITCH 1200888 | 1 | ADOBE CREEK | Arkansas: Salida to Portland | intake name: MINERAL CREEK |
Compliance record
Source Register of another agency · fetched 2026-10-07 · verify at EPA ECHO ↗
Nothing open today, but 2 health-based violations appear on the federal record historically. The history is below.
EPA's own summary: violations in 3 of the last 12 quarters. In violation for, in EPA's words: 0200=Surface Water Treatment Rule; 0999=Chlorine; 2456=Total Haloacetic Acids (HAA5); 2920=CARBON, TOTAL; 8000=Revised Total Coliform Rule.
What happened
All 2 violation records on file, grouped into the 2 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (2 of 2)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2025-07-01 – 2025-09-30 | Treatment Technique Precursor Removal | Carbon, Total | health-based | returned to compliance (2025-12-31) | 0.52 RATIO |
| 2015-04-01 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2015-05-11) |
What the regulator did about it
38 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 |
|---|---|---|
| 2026-06-18 | St Violation/Reminder Notice | state |
| 2026-06-18 | St Public Notif requested | state |
| 2026-06-18 | St Violation/Reminder Notice | state |
| 2026-06-18 | St Public Notif requested | state |
| 2026-06-18 | St Violation/Reminder Notice | state |
| 2026-06-18 | St Public Notif requested | state |
| 2026-06-18 | St Compliance achieved SOXing; the missing result was received on 6/18/2026. |
state |
| 2025-12-31 | St Compliance achieved SOXing, the system monitored and reported for 4Q 2025 without additional M&R or TT violations in accordance with the Rule. MM 2/2/2026 |
state |
| 2025-11-12 | St Public Notif received | state |
| 2025-10-21 | St Violation/Reminder Notice | state |
| 2025-10-21 | St Public Notif requested | state |
| 2024-06-10 | St Public Notif received PN performed with 2024 CCR. MM 6/12/2024 |
state |
| 2023-11-30 | St Compliance achieved SOXing; monitored and reported correctly in 4Q 2023. MM 1/26/2024 |
state |
| 2023-10-20 | St Violation/Reminder Notice | state |
| 2023-10-20 | St Public Notif requested | state |
| 2023-09-18 | St Compliance achieved Total coliform and residual met in next month sampling. KLM |
state |
| 2023-07-20 | St Violation/Reminder Notice | state |
| 2023-07-20 | St Public Notif requested | state |
| 2023-07-20 | St Violation/Reminder Notice | state |
| 2023-07-20 | St Public Notif requested | state |
20 most recent of 38; 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. 7 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 2026-10-09 · verify at EPA UCMR occurrence data ↗
5 samples, 120 results, 2025-03-04 to 2025-12-02. No PFAS was detected at the reporting limits; lithium was measured up to 10.0 µg/L (no federal limit).
| 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 | 1 | 10.0 | 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 ↗.
What changed recently
Differences EPA's monthly federal record showed against the month before. A date in brackets is EPA's own; otherwise it is when this site first saw the change.
- Enforcement action: St Violation/Reminder Notice (2026-06-18)
- Enforcement action: St Public Notif requested (2026-06-18)
- Enforcement action: St Violation/Reminder Notice (2026-06-18)
- Enforcement action: St Public Notif requested (2026-06-18)
- Enforcement action: St Violation/Reminder Notice (2026-06-18)
- Enforcement action: St Public Notif requested (2026-06-18)
- Enforcement action: St Compliance achieved (2026-06-18)
Save this system to My Water and these changes appear there each time you visit.
Common questions
Who provides drinking water in Florence, Colorado?
The City of Florence is the public water system serving 7,500 people in Fremont County, from surface water. Its EPA public water system id is CO0122500.
Where does the City of Florence get its water?
The City of Florence reports surface water as its primary source. EPA lists its source facilities as ROCKVALE INFS AND WELLS RAW WATER, ARKANSAS RVR MINNEQUA CANAL, NEWLIN CREEK, ADOBE CREEK.
Does the City of Florence have any drinking water violations?
EPA's compliance record shows no open health-based violations for the City of Florence at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Places this system serves
Census places its EPA service-area boundary substantially covers. Each page lists every system serving that place.
Every provider in Fremont County.
The record
EPA SDWIS federal reporting as of 2026-10-06; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →