Public water system · NV0000323
ActiveBlue Diamond Rainbow Sw Plaza Water
At a glance
Blue Diamond Rainbow Sw Plaza Water (PWSID NV0000323) is an active non-transient non-community water system in Clark County, Illinois. It reports serving 1,871 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,871
Service connections
3
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Blue Diamond Rainbow Sw Plaza Water compare with other water systems in Clark County?
By EPA's size categories, Blue Diamond Rainbow Sw Plaza Water is a small system (501 to 3,300 people). Clark County has 9 active public water systems, and Blue Diamond Rainbow Sw Plaza Water is the 4th-largest of them by population served. Its population served is about 21% below the county average of 2,364 people per system, and accounts for 8.8% of the 21,277 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Blue Diamond Rainbow Sw Plaza Water is about 4.4 times 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. Illinois has 396 active non-transient non-community water systems, 10% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Blue Diamond Rainbow Sw Plaza Water?
EPA lists Blue Diamond Rainbow Sw Plaza Water as privately owned. The NV state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 3 of the 9 active systems in Clark County (33%) are also privately owned.
Does Blue Diamond Rainbow Sw Plaza Water have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2025. The violations listed here began between July 2022 and January 2025. By type: 6 required treatment not met, 5 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Groundwater Rule (5 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2023-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-09-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2022-09-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
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.
Blue Diamond Rainbow Sw Plaza Water: frequently asked questions
Who runs Blue Diamond Rainbow Sw Plaza Water?
Blue Diamond Rainbow Sw Plaza Water (PWSID NV0000323) is a non-transient non-community water system privately owned. It is regulated by the NV state drinking water program.
How many people does Blue Diamond Rainbow Sw Plaza Water serve?
Blue Diamond Rainbow Sw Plaza Water reports serving 1,871 people through 3 service connections in Clark County, Illinois.
Where does Blue Diamond Rainbow Sw Plaza Water 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 Blue Diamond Rainbow Sw Plaza Water have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2025. 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 Blue Diamond Rainbow Sw Plaza Water'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, 6 are health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the NV state drinking water program.
Where can I find Blue Diamond Rainbow Sw Plaza Water's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Blue Diamond Rainbow Sw Plaza Water 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 Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Clark-Edgar Rwd | Clark | 9,657 | Community | Groundwater |
| Marshall | Clark | 3,947 | Community | Groundwater |
| Casey | Clark | 3,274 | Community | Purchased groundwater |
| Martinsville | Clark | 1,200 | Community | Purchased groundwater |
| Westfield | Clark | 678 | Community | Purchased groundwater |
| Union-York Water District | Clark | 600 | 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, “Blue Diamond Rainbow Sw Plaza Water, PWSID NV0000323, Illinois”, https://aquacensus.com/water-systems/illinois/blue-diamond-rainbow-sw-plaza-water-nv0000323 (data as of October 1, 2026).