Public water system · CA2900504
ActiveSierra Energy #3
At a glance
Sierra Energy #3 (PWSID CA2900504) is an active transient non-community water system in Nevada County, California. It reports serving 200 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1984.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Sierra Energy #3 compare with other water systems in Nevada County?
By EPA's size categories, Sierra Energy #3 is a very small system (500 people or fewer). Nevada County has 82 active public water systems. Its population served is well below the county average of 1,263 people per system, and accounts for 0.2% of the 103,540 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 Sierra Energy #3 is about 39% above 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Sierra Energy #3?
EPA lists Sierra Energy #3 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. 49 of the 82 active systems in Nevada County (60%) are also privately owned.
Does Sierra Energy #3 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1984. The violations listed here began between October 1983 and September 1984. By type: 12 public notice, recordkeeping or other. EPA lists 12 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 |
|---|---|---|---|---|
| 1984-09-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-03-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1983-12-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1983-11-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1983-10-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
The 12 most recent 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.
Sierra Energy #3: frequently asked questions
Who runs Sierra Energy #3?
Sierra Energy #3 (PWSID CA2900504) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Sierra Energy #3 serve?
Sierra Energy #3 reports serving 200 people through 1 service connection in Nevada County, California.
Where does Sierra Energy #3 get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Sierra Energy #3 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1984. 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 Sierra Energy #3'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1984. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Sierra Energy #3's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Sierra Energy #3 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 Nevada County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Truckee-Donner PUD, Main | Nevada | 36,730 | Community | Groundwater |
| Nevada Id - E. George, Banner Mountain | Nevada | 17,154 | Community | Surface water |
| Nevada Id - Loma Rica | Nevada | 14,072 | Community | Surface water |
| Nevada Id - Lake Wildwood | Nevada | 9,108 | Community | Surface water |
| Nevada Id - Lake of Pines | Nevada | 6,870 | Community | Surface water |
| City of Grass Valley | Nevada | 4,947 | 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, “Sierra Energy #3, PWSID CA2900504, California”, https://aquacensus.com/water-systems/california/sierra-energy-3-ca2900504 (data as of October 1, 2026).