Public water system · MN5190207
ActiveFirst State Bank of Castle Rock
At a glance
First State Bank of Castle Rock (PWSID MN5190207) is an active transient non-community water system in Dakota County, Minnesota. It reports serving 25 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in January 1989.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
5
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does First State Bank of Castle Rock compare with other water systems in Dakota County?
By EPA's size categories, First State Bank of Castle Rock is a very small system (500 people or fewer). Dakota County has 134 active public water systems. Its population served is well below the county average of 2,920 people per system, and accounts for less than 0.1% of the 391,319 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active transient non-community water system reports serving 144 people, so First State Bank of Castle Rock is well 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. Minnesota has 5,008 active transient non-community water systems, 77% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates First State Bank of Castle Rock?
EPA lists First State Bank of Castle Rock as privately owned. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 100 of the 134 active systems in Dakota County (75%) are also privately owned.
Does First State Bank of Castle Rock have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in January 1989. By type: 1 contaminant level above the legal limit. 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 |
|---|---|---|---|---|
| 1989-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | 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.
First State Bank of Castle Rock: frequently asked questions
Who runs First State Bank of Castle Rock?
First State Bank of Castle Rock (PWSID MN5190207) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does First State Bank of Castle Rock serve?
First State Bank of Castle Rock reports serving 25 people through 5 service connections in Dakota County, Minnesota.
Where does First State Bank of Castle Rock 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 First State Bank of Castle Rock have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in January 1989. 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 First State Bank of Castle Rock'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 health-based, and the most recent began in January 1989. For current results, consult EPA ECHO, or the MN state drinking water program.
Where can I find First State Bank of Castle Rock's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. First State Bank of Castle Rock 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 Dakota County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eagan | Dakota | 68,223 | Community | Groundwater |
| Lakeville | Dakota | 67,300 | Community | Groundwater |
| Burnsville | Dakota | 61,747 | Community | Surface water |
| Apple Valley | Dakota | 50,300 | Community | Groundwater |
| Inver Grove Heights | Dakota | 34,189 | Community | Groundwater |
| Rosemount | Dakota | 26,500 | Community | Groundwater |
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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, “First State Bank of Castle Rock, PWSID MN5190207, Minnesota”, https://aquacensus.com/water-systems/minnesota/first-state-bank-of-castle-rock-mn5190207 (data as of October 1, 2026).