Hydrohistorian
Boundary traced from Douglas County. About 1 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| INF GAL NO 1 | Well | Groundwater |
| INF GAL NO 2 | Well | 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.
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 12 of the last 12 quarters, significant non-compliance in 4; listed by EPA as a serious violator. Contaminants in violation in the last three years, in EPA's words: 0200=Surface Water Treatment Rule; 0300=Interim Enhanced Surface Water Treatment Rule; 0999=Chlorine; 1025=Fluoride; 2456=Total Haloacetic Acids (HAA5); 2950=TTHM; 3014=E. COLI; 4000=Gross Alpha, Excl. Radon and U; 4006=Combined Uranium; 4010=Combined Radium (-226 and -228); 5000=Lead and Copper Rule; 7500=Public Notice; 8000=Revised Total Coliform Rule. Currently in violation for: 3014=E. COLI; 5000=Lead and Copper Rule; 7500=Public Notice.
8 health-based violations on the federal record all time, 5 violations open today. Most recent health-based: Maximum contaminant level exceeded, compliance period from 2025-07-01.
| Period | Kind | Health-based | Status | Measured | Codes |
|---|---|---|---|---|---|
| 2026-04-01 | Monitoring and reporting | no | open | v66 c5000 r350 | |
| 2025-11-07 | Other | no | open | v75 c7500 r410 | |
| 2025-09-21 | Other | no | open | v75 c7500 r410 | |
| 2025-08-09 | Other | no | open | v75 c7500 r410 | |
| 2025-07-06 | Other | no | open | v75 c7500 r410 | |
| 2025-07-01 – 2025-09-30 | Maximum contaminant level exceeded | yes | known, archived | 4.1 MG/L (limit 4.0) | v02 c1025 r333 |
| 2025-07-01 – 2025-07-31 | Treatment technique not met | yes | returned to compliance (2025-07-02) | v41 c0200 r121 | |
| 2025-06-01 – 2025-06-30 | Treatment technique not met | yes | returned to compliance (2025-07-02) | v41 c0200 r121 | |
| 2025-05-01 – 2025-05-31 | Treatment technique not met | yes | returned to compliance (2025-07-02) | v41 c0200 r121 | |
| 2025-04-01 – 2025-06-30 | Maximum contaminant level exceeded | yes | known, archived | 4.1 MG/L (limit 4.0) | v02 c1025 r333 |
| 2025-04-01 – 2025-04-30 | Treatment technique not met | yes | returned to compliance (2025-07-02) | v41 c0200 r121 | |
| 2025-03-01 – 2025-03-31 | Treatment technique not met | yes | returned to compliance (2025-07-02) | v41 c0200 r121 |
12 of 13 shown; the rest are on the ECHO report.
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; 9 results on file.
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 ↗
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).
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 →