Public water system · CA0710800
ActiveDwr Delta Field Division - Banks Pp
At a glance
Dwr Delta Field Division - Banks Pp (PWSID CA0710800) is an active non-transient non-community water system in Contra Costa County, California. It reports serving 180 people through 1 service connection. Its primary water source is surface water, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
180
Service connections
1
Primary source
SW
Surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Dwr Delta Field Division - Banks Pp compare with other water systems in Contra Costa County?
By EPA's size categories, Dwr Delta Field Division - Banks Pp is a very small system (500 people or fewer). Contra Costa County has 84 active public water systems. Its population served is well below the county average of 6,726 people per system, and accounts for less than 0.1% of the 564,952 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 Dwr Delta Field Division - Banks Pp is about 58% 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. 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 Dwr Delta Field Division - Banks Pp?
EPA lists Dwr Delta Field Division - Banks Pp as owned by a state government. 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. 2 of the 84 active systems in Contra Costa County (2.4%) are also owned by a state government.
Does Dwr Delta Field Division - Banks Pp have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 1996. By type: 1 monitoring and reporting. The contaminant or rule involved is Surface Water Treatment Rule. 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 |
|---|---|---|---|---|
| 1996-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | 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.
Dwr Delta Field Division - Banks Pp: frequently asked questions
Who runs Dwr Delta Field Division - Banks Pp?
Dwr Delta Field Division - Banks Pp (PWSID CA0710800) is a non-transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Dwr Delta Field Division - Banks Pp serve?
Dwr Delta Field Division - Banks Pp reports serving 180 people through 1 service connection in Contra Costa County, California.
Where does Dwr Delta Field Division - Banks Pp 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 Dwr Delta Field Division - Banks Pp 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 October 1996. 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 Dwr Delta Field Division - Banks Pp'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 October 1996. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Dwr Delta Field Division - Banks Pp's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dwr Delta Field Division - Banks Pp 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 Contra Costa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Contra Costa Water District | Contra Costa | 198,000 | Community | Surface water |
| City of Antioch | Contra Costa | 115,074 | Community | Surface water |
| Brentwood | Contra Costa | 64,513 | Community | Purchased surface water |
| City of Pittsburg | Contra Costa | 62,500 | Community | Purchased surface water |
| Diablo Water District | Contra Costa | 43,357 | Community | Purchased surface water |
| City of Martinez | Contra Costa | 30,997 | 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, “Dwr Delta Field Division - Banks Pp, PWSID CA0710800, California”, https://aquacensus.com/water-systems/california/dwr-delta-field-division-banks-pp-ca0710800 (data as of October 1, 2026).