Public water system · CA4000722
ActiveFiero Lane Water Company, Inc..
At a glance
Fiero Lane Water Company, Inc.. (PWSID CA4000722) is an active non-transient non-community water system in San Luis Obispo County, California. It reports serving 324 people through 98 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in July 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
324
Service connections
98
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Fiero Lane Water Company, Inc.. compare with other water systems in San Luis Obispo County?
By EPA's size categories, Fiero Lane Water Company, Inc.. is a very small system (500 people or fewer). San Luis Obispo County has 171 active public water systems. Its population served is well below the county average of 2,038 people per system, and accounts for less than 0.1% of the 348,510 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 Fiero Lane Water Company, Inc.. is about 25% 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 Fiero Lane Water Company, Inc..?
EPA lists Fiero Lane Water Company, Inc.. 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. 130 of the 171 active systems in San Luis Obispo County (76%) are also privately owned.
Does Fiero Lane Water Company, Inc.. have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in July 2016. The violations listed here began between April 2016 and July 2016. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 2 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2016-07-25 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Archived |
| 2016-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Archived |
All 2 violations in EPA's records, newest first.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.
Fiero Lane Water Company, Inc..: frequently asked questions
Who runs Fiero Lane Water Company, Inc..?
Fiero Lane Water Company, Inc.. (PWSID CA4000722) is a non-transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Fiero Lane Water Company, Inc.. serve?
Fiero Lane Water Company, Inc.. reports serving 324 people through 98 service connections in San Luis Obispo County, California.
Where does Fiero Lane Water Company, Inc.. 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 Fiero Lane Water Company, Inc.. have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in July 2016. 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 Fiero Lane Water Company, Inc..'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 2 violations for this system; all are health-based, and the most recent began in July 2016. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Fiero Lane Water Company, Inc..'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Fiero Lane Water Company, Inc.. 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 San Luis Obispo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Santa Margarita Recreation Area | San Luis Obispo | 50,001 | Transient non-community | Groundwater |
| San Luis Obispo Water Department | San Luis Obispo | 47,788 | Community | Surface water |
| City of Paso Robles Water Division | San Luis Obispo | 31,176 | Community | Surface water |
| Atascadero Mutual Water Co | San Luis Obispo | 30,618 | Community | Groundwater |
| City of Arroyo Grande Utilities Division | San Luis Obispo | 17,963 | Community | Purchased surface water |
| California Mens Colony | San Luis Obispo | 15,000 | Community | 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, “Fiero Lane Water Company, Inc.., PWSID CA4000722, California”, https://aquacensus.com/water-systems/california/fiero-lane-water-company-inc-ca4000722 (data as of October 1, 2026).