Public water system · CA2800012
ActiveLmr Main Street Partners LLC
At a glance
Lmr Main Street Partners LLC (PWSID CA2800012) is an active non-transient non-community water system in Napa County, California. It reports serving 26 people through 1 service connection. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
26
Service connections
1
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Lmr Main Street Partners LLC compare with other water systems in Napa County?
By EPA's size categories, Lmr Main Street Partners LLC is a very small system (500 people or fewer). Napa County has 188 active public water systems. Its population served is well below the county average of 861 people per system, and accounts for less than 0.1% of the 161,950 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Lmr Main Street Partners LLC is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. California has 1,466 active non-transient non-community water systems, 20% of the state's 7,479 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Lmr Main Street Partners LLC?
EPA lists Lmr Main Street Partners LLC as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 168 of the 188 active systems in Napa County (89%) are also privately owned.
Does Lmr Main Street Partners LLC have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2013. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Lmr Main Street Partners LLC: frequently asked questions
Who runs Lmr Main Street Partners LLC?
Lmr Main Street Partners LLC (PWSID CA2800012) is a non-transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Lmr Main Street Partners LLC serve?
Lmr Main Street Partners LLC reports serving 26 people through 1 service connection in Napa County, California.
Where does Lmr Main Street Partners LLC get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Lmr Main Street Partners LLC have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2013. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Lmr Main Street Partners LLC's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2013. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Lmr Main Street Partners LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lmr Main Street Partners LLC is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Napa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Napa, City of | Napa | 84,804 | Community | Surface water |
| American Canyon, City of | Napa | 21,437 | Community | Surface water |
| Phelps Vineyards | Napa | 19,412 | Non-transient non-community | Groundwater |
| Calistoga, City of | Napa | 5,610 | Community | Surface water |
| St. Helena, City of | Napa | 5,386 | Community | Surface water |
| Town of Yountville | Napa | 2,787 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Lmr Main Street Partners LLC, PWSID CA2800012, California”, https://aquacensus.com/water-systems/california/lmr-main-street-partners-llc-ca2800012 (data as of October 1, 2026).