DAYTON, NV · Lyon County
DAYTON VALLEY H2O USERS ASSOC. Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of November 1, 1994. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Lyon County, NV.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Nevada’s official records. Always confirm current status with Nevada before making decisions based on this information.
System facts
- System ID (PWSID)
- NV0000274
- System type
- Community Water System
- Population served
- 28
- Service connections
- 12
- Ownership
- privately owned
- Water source
- groundwater (wells)
DAYTON VALLEY H2O USERS ASSOC. is one of 293 community water systems in Nevada in the 500 or fewer people size category, formerly serving 28 people from groundwater.
EPA's federal records list this system as inactive in 1994; the record below is historical.
As of August 1, 2026, its federal record holds 2 entries between 1981 and 1985, all of which EPA lists as closed. Nothing has been added since 1985.
None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Notification, Public
—Coliform (Pre-TCR)
October 31, 1985 – January 30, 1986
ArchivedNotification, Public
—Coliform (Pre-TCR)
June 30, 1981 – July 29, 1981
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 31, 1985 – January 30, 1986 | Notification, Public | Coliform (Pre-TCR) | — | Archived |
| June 30, 1981 – July 29, 1981 | Notification, Public | Coliform (Pre-TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
Not on record
702-883-5167
DAYTON, NV 89403