BERKELEY, NV · Lyon County
DAYTON VALLEY MHP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 22, 2009. 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)
- NV0000033
- System type
- Community Water System
- Population served
- 55
- Service connections
- 28
- Ownership
- privately owned
- Water source
- groundwater (wells)
DAYTON VALLEY MHP is one of 293 community water systems in Nevada in the 500 or fewer people size category, formerly serving 55 people from groundwater.
EPA's federal records list this system as inactive in 2009; the record below is historical.
As of August 1, 2026, its federal record holds 2 entries in 2005, all of which EPA lists as closed. Nothing has been added since 2005.
All 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals.
Violation history
Monitoring, Regular
—LASSO
January 1, 2005 – December 31, 2007
ArchivedMonitoring, Regular
—Glyphosate
January 1, 2005 – December 31, 2007
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | LASSO | — | Archived |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Glyphosate | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- February 1, 2010State Compliance achieved7 linked violations
- October 28, 2009State Compliance achieved8 linked violations
- May 21, 2008State Violation/Reminder Notice20 linked violations
- May 21, 2008State Public Notification requested24 linked violations
- February 12, 2008State Public Notification requested11 linked violations
- April 24, 2007State Violation/Reminder Notice6 linked violations
- April 24, 2007State Public Notification requested9 linked violations
- April 24, 2007State Public Notification requested8 linked violations
Last known contact on file (system is inactive)
THORENFELDT, KIM
925-932-0689
BERKELEY, CA 94707