Public water system · TX1011527
ActiveLyondell Chemical Co Bayport
At a glance
Lyondell Chemical Co Bayport (PWSID TX1011527) is an active non-transient non-community water system in Harris County, Texas. It reports serving 300 people through 25 service connections. Its primary water source is purchased surface water, 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 December 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
300
Service connections
25
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Lyondell Chemical Co Bayport compare with other water systems in Harris County?
By EPA's size categories, Lyondell Chemical Co Bayport is a very small system (500 people or fewer). Harris County has 1,246 active public water systems. Its population served is well below the county average of 4,849 people per system, and accounts for less than 0.1% of the 6,041,784 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Lyondell Chemical Co Bayport is about 30% 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. Texas has 862 active non-transient non-community water systems, 12% of the state's 7,078 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.
Who owns and regulates Lyondell Chemical Co Bayport?
EPA lists Lyondell Chemical Co Bayport 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. 732 of the 1,246 active systems in Harris County (59%) are also privately owned.
Does Lyondell Chemical Co Bayport have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2018. The violations listed here began between July 1991 and December 2018. By type: 6 monitoring and reporting and 6 required treatment not met. The contaminant or rule involved most often is Surface Water Treatment Rule (6 of them). EPA lists 7 as archived and 5 as resolved. 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. 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 |
|---|---|---|---|---|
| 2018-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1993-11-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1993-10-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1993-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1993-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1993-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1991-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Lyondell Chemical Co Bayport: frequently asked questions
Who runs Lyondell Chemical Co Bayport?
Lyondell Chemical Co Bayport (PWSID TX1011527) is a non-transient non-community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Lyondell Chemical Co Bayport serve?
Lyondell Chemical Co Bayport reports serving 300 people through 25 service connections in Harris County, Texas.
Where does Lyondell Chemical Co Bayport get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Lyondell Chemical Co Bayport 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 December 2018. 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 Lyondell Chemical Co Bayport'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 December 2018. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Lyondell Chemical Co Bayport's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lyondell Chemical Co Bayport 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 Harris County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Houston | Harris | 2,970,543 | Community | Surface water |
| City of Pasadena | Harris | 152,000 | Community | Purchased surface water |
| Clear Lake City Water Authority | Harris | 89,702 | Community | Purchased surface water |
| City of Baytown | Harris | 86,004 | Community | Purchased surface water |
| City of Houston Ud 5 - Kingwood | Harris | 80,073 | Community | Groundwater |
| Harris County MUD 165 | Harris | 40,503 | 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, “Lyondell Chemical Co Bayport, PWSID TX1011527, Texas”, https://aquacensus.com/water-systems/texas/lyondell-chemical-co-bayport-tx1011527 (data as of October 1, 2026).