Hydrohistorian
Town of Silverton
Serves Silverton.
Boundary traced from CPSLLC. About 2 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| GALVIN CREEK | Intake | Surface water |
| BIG MOLAS LAKE | Intake | Surface water |
| BOULDER CREEK BLENDED | Intake | Surface water |
| BEAR CREEK BLENDED | 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.
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
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 |
|---|---|---|---|---|
| BIG MOLAS LAKE 3003926 | 3 | ANIMAS RIVER | Animas River Basin | intake name: BIG MOLAS LAKE |
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
1 violation open now, none health-based. These are monitoring, reporting or notice requirements — a sample not taken, or a result not filed on time. They are real obligations, but they are not a finding about the water itself.
EPA's own summary: violations in 4 of the last 12 quarters. In violation for, in EPA's words: 5000=Lead and Copper Rule; 7000=Consumer Confidence Rule. Currently: 5000=Lead and Copper Rule; 7000=Consumer Confidence 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: Consumer Confidence Report -- the annual report to customers.
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 | CCR Complete Failure to Report | Consumer Confidence Rule | other | open | |
| 2014-09-17 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2014-10-06) |
What the regulator did about it
10 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 |
|---|---|---|
| 2026-01-06 | St Violation/Reminder Notice | state |
| 2026-01-06 | St Public Notif requested | state |
| 2026-01-06 | St Compliance achieved SOXing; the LCN was distributed and a copy along with the COD has been submitted. MM 2/5/2026 |
state |
| 2025-07-15 | St Violation/Reminder Notice | state |
| 2025-07-15 | St Public Notif requested | state |
| 2021-11-16 | St Compliance achieved late reporting |
state |
| 2021-11-15 | St Violation/Reminder Notice | state |
| 2021-11-15 | St Public Notif requested | state |
| 2021-11-15 | St Violation/Reminder Notice | state |
| 2021-11-15 | St Public Notif requested | state |
Lead and copper
The latest 90th-percentile lead result is 0.0021 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 2026-09-09 · verify at EPA UCMR occurrence data ↗
EPA did not sample this system under UCMR 5 (the rule covered every system serving more than 3,300 people and a drawn sample of smaller ones).
Common questions
Who provides drinking water in Silverton, Colorado?
The Town of Silverton is the public water system serving 2,387 people in San Juan County, from surface water. Its EPA public water system id is CO0156600.
Where does the Town of Silverton get its water?
The Town of Silverton reports surface water as its primary source. EPA lists its source facilities as GALVIN CREEK, BIG MOLAS LAKE, BOULDER CREEK BLENDED, BEAR CREEK BLENDED.
Does the Town of Silverton have any drinking water violations?
EPA's compliance record shows no open health-based violations for the Town of Silverton 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 San Juan County.
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 →