Hydrohistorian
Boundary traced from Syril Whitlock, Engineering Tech., City of Montrose. About 42 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| PUR 143621 PROJECT 7 | Consecutive connection (purchased) | Surface water · from PROJECT 7 WA |
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
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 ↗
EPA's summary: violations in 4 of the last 12 quarters; not a serious violator. Contaminants in violation in the last three years, in EPA's words: 7500=Public Notice. Currently in violation for: 7500=Public Notice.
0 health-based violations on the federal record all time, 2 violations open today.
| Period | Kind | Health-based | Status | Measured | Codes |
|---|---|---|---|---|---|
| 2025-11-07 | Other | no | open | v76 c7500 r410 | |
| 2025-08-09 | Other | no | open | v76 c7500 r410 |
No lead or copper 90th-percentile result on the federal record for this system.
SDWIS federal reporting carries violations and lead/copper percentiles only; nitrate, disinfection by-product and PFAS sample results are not in it. Codes are EPA's (violation, contaminant, rule); the ECHO report expands them.
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 ↗
4 samples, 120 results, 2024-09-16 to 2025-06-16. No PFAS was detected at the reporting limits; lithium was measured up to 16.9 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 | 2 | 16.9 | 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 ↗.
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 →