Public water system · TX0200401
ActiveKey Largo Utilities
At a glance
Key Largo Utilities (PWSID TX0200401) is an active community water system in Brazoria County, Wyoming. It reports serving 105 people through 35 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, 2 are health-based, and the most recent began in April 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
105
Service connections
35
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Key Largo Utilities compare with other water systems in Brazoria County?
By EPA's size categories, Key Largo Utilities is a very small system (500 people or fewer). Brazoria County has 2 active public water systems, and Key Largo Utilities is the 2nd-largest of them by population served. Its population served is about 11% below the county average of 118 people per system, and accounts for 45% of the 235 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active community water system reports serving 6,703 people, so Key Largo Utilities is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Wyoming has 332 active community water systems, 43% of the state's 775 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 585 Wyoming systems (75%) list groundwater as their primary source.
Who owns and regulates Key Largo Utilities?
EPA lists Key Largo Utilities as privately owned. The TX 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 2 active systems in Brazoria County (100%) are also privately owned.
Does Key Largo Utilities have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2026. The violations listed here began between March 2024 and April 2026. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 2 required treatment not met, 1 monitoring and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule (6 of them). EPA lists 7 as resolved, 4 as unaddressed and 1 as archived. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-04-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-03-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-05-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 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 |
| 2024-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-03-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-03-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | 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.
Key Largo Utilities: frequently asked questions
Who runs Key Largo Utilities?
Key Largo Utilities (PWSID TX0200401) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Key Largo Utilities serve?
Key Largo Utilities reports serving 105 people through 35 service connections in Brazoria County, Wyoming.
Where does Key Largo Utilities 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 Key Largo Utilities have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2026. 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 Key Largo Utilities' 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, 2 are health-based, and the most recent began in April 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Key Largo Utilities' water quality report?
As a community water system, Key Largo Utilities must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Brazoria County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pearland Rv and Boat | Brazoria | 130 | Transient non-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, “Key Largo Utilities, PWSID TX0200401, Wyoming”, https://aquacensus.com/water-systems/wyoming/key-largo-utilities-tx0200401 (data as of October 1, 2026).