Hydrohistorian
Pinewood Springs Water District
Its service area also reaches St. Vrain Creek (32.0%).
Boundary traced from IRE. About 3 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| RAW WATER RESERVOIR | Reservoir | Surface water |
| RAW WATER DIVERSION FR LITTLE THOMP 2006 | Intake | Surface water |
| HAULED WATER FROM CO0107485 LONGMONT | Non-piped, purchased | Surface water · from LONGMONT CITY OF |
| ORIGINAL INFILTRATION GALLERY | Infiltration gallery | Groundwater under the influence of 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
Buys water from LONGMONT CITY OF.
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 ↗
3 health-based violations open now. A health-based violation means a measured level went over a federal limit, or a required treatment step was not carried out — not a missed form. What that means for anyone drinking the water depends on the contaminant and the dose; read EPA's own report and the system's Consumer Confidence Report rather than anything inferred here.
EPA's own summary: violations in 12 of the last 12 quarters. In violation for, in EPA's words: 0200=Surface Water Treatment Rule; 0300=Interim Enhanced Surface Water Treatment Rule; 0700=Groundwater Rule; 2456=Total Haloacetic Acids (HAA5); 2950=TTHM. Currently: 0700=Groundwater Rule; 2950=TTHM.
What happened
All 27 violation records on file, grouped into the 5 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Groundwater Rule -- protecting wells from faecal contamination.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Rule: Surface Water Treatment Rule -- filtration and disinfection.
Rule: Long Term 1 Enhanced Surface Water Treatment Rule.
Every violation record, as filed (12 of 27)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2026-01-21 | Failure To Address Deficiency | Groundwater Rule | health-based | open | |
| 2026-01-21 | Failure To Address Deficiency | Groundwater Rule | health-based | open | |
| 2026-01-21 | Failure To Address Deficiency | Groundwater Rule | health-based | open | |
| 2026-01-01 – 2026-03-31 | MCL, Average | TTHM | health-based | known, archived | 0.145 MG/L (limit 0.08) |
| 2025-10-01 – 2025-12-31 | MCL, Average | TTHM | health-based | known, archived | 0.16 MG/L (limit 0.08) |
| 2025-10-01 – 2025-12-31 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | known, archived | 0.066 MG/L (limit 0.06) |
| 2025-07-01 – 2025-09-30 | MCL, Average | TTHM | health-based | known, archived | 0.224 MG/L (limit 0.08) |
| 2025-07-01 – 2025-09-30 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | known, archived | 0.071 MG/L (limit 0.06) |
| 2025-04-01 – 2025-06-30 | MCL, Average | TTHM | health-based | known, archived | 0.192 MG/L (limit 0.08) |
| 2025-04-01 – 2025-06-30 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | known, archived | 0.067 MG/L (limit 0.06) |
| 2025-01-01 – 2025-03-31 | MCL, Average | TTHM | health-based | known, archived | 0.178 MG/L (limit 0.08) |
| 2025-01-01 – 2025-03-31 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | known, archived | 0.093 MG/L (limit 0.06) |
The remaining 15 are on the ECHO report.
What the regulator did about it
121 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 |
|---|---|---|
| 2026-03-04 | St Public Notif received | state |
| 2026-02-24 | St Violation/Reminder Notice | state |
| 2026-02-24 | St Public Notif requested | state |
| 2026-01-27 | St Violation/Reminder Notice | state |
| 2026-01-27 | St Public Notif requested | state |
| 2026-01-27 | St Violation/Reminder Notice | state |
| 2026-01-27 | St Public Notif requested | state |
| 2026-01-27 | St Violation/Reminder Notice | state |
| 2026-01-27 | St Public Notif requested | state |
| 2026-01-05 | St Public Notif received | state |
| 2025-12-15 | St Violation/Reminder Notice | state |
| 2025-12-15 | St Public Notif requested | state |
| 2025-12-15 | St Violation/Reminder Notice | state |
| 2025-12-15 | St Public Notif requested | state |
| 2025-10-06 | St Public Notif received | state |
| 2025-09-24 | St Violation/Reminder Notice | state |
| 2025-09-22 | St Violation/Reminder Notice | state |
| 2025-09-22 | St Public Notif requested | state |
| 2025-09-22 | St Compliance achieved | state |
| 2025-09-15 | St Violation/Reminder Notice | state |
20 most recent of 121; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.001 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 Lyons, Colorado?
Pinewood Springs Water District is the public water system serving 745 people in Larimer County, from surface water. Its EPA public water system id is CO0135610.
Where does Pinewood Springs Water District get its water?
Pinewood Springs Water District reports surface water as its primary source. EPA lists its source facilities as RAW WATER RESERVOIR, RAW WATER DIVERSION FR LITTLE THOMP 2006, HAULED WATER FROM CO0107485 LONGMONT, ORIGINAL INFILTRATION GALLERY.
Does Pinewood Springs Water District have any drinking water violations?
EPA's compliance record shows no open health-based violations for Pinewood Springs Water District at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Every provider in Larimer 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 →