Public water system · CA4000652
ActiveNorthshore S & B, Inc.
At a glance
Northshore S & B, Inc. (PWSID CA4000652) is an active transient non-community water system in San Luis Obispo County, California. It reports serving 50 people through 40 service connections. Its primary water source is 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 January 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
40
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Northshore S & B, Inc. compare with other water systems in San Luis Obispo County?
By EPA's size categories, Northshore S & B, 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 transient non-community water system reports serving 144 people, so Northshore S & B, Inc. is about 65% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Northshore S & B, Inc.?
EPA lists Northshore S & B, 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 Northshore S & B, Inc. have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2019. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate. 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 |
|---|---|---|---|---|
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Northshore S & B, Inc.: frequently asked questions
Who runs Northshore S & B, Inc.?
Northshore S & B, Inc. (PWSID CA4000652) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Northshore S & B, Inc. serve?
Northshore S & B, Inc. reports serving 50 people through 40 service connections in San Luis Obispo County, California.
Where does Northshore S & B, Inc. get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Northshore S & B, Inc. 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 January 2019. 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 Northshore S & B, 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 one violation for this system; it is not health-based, and the most recent began in January 2019. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Northshore S & B, Inc.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Northshore S & B, Inc. is a 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, “Northshore S & B, Inc., PWSID CA4000652, California”, https://aquacensus.com/water-systems/california/northshore-s-b-inc-ca4000652 (data as of October 1, 2026).