Public water system · TX1011633

Active

Oak Manor

At a glance

Oak Manor (PWSID TX1011633) is an active community water system in Harris County, Texas. It reports serving 132 people through 44 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

132

Service connections

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDTX1011633

System typeCommunity water system

Activity statusActive

Population served132

Service connections44

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyHarris County

How does Oak Manor compare with other water systems in Harris County?

By EPA's size categories, Oak Manor 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 community water system reports serving 6,703 people, so Oak Manor 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. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.

Who owns and regulates Oak Manor?

EPA lists Oak Manor 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 Oak Manor have drinking water violations?

EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between September 1991 and January 2026. By type: 5 monitoring and reporting, 2 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 4 as archived, 3 as resolved and 1 as unaddressed. 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. 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
2026-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Unaddressed
2020-10-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2005-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1992-09-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1992-09-01	Public notice, recordkeeping or otherNotification, Public · code 06	Total coliform bacteria (TCR)code 3100	No	Archived
1992-08-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Archived
1991-09-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Archived

All 8 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.

Oak Manor: frequently asked questions

Who runs Oak Manor?

Oak Manor (PWSID TX1011633) is a community water system privately owned. It is regulated by the TX state drinking water program.

How many people does Oak Manor serve?

Oak Manor reports serving 132 people through 44 service connections in Harris County, Texas.

Where does Oak Manor 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 Oak Manor have any drinking water violations?

EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 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 Oak Manor'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 8 violations for this system; none is health-based, and the most recent began in January 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 Oak Manor's water quality report?

As a community water system, Oak Manor 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 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, “Oak Manor, PWSID TX1011633, Texas”, https://aquacensus.com/water-systems/texas/oak-manor-tx1011633 (data as of October 1, 2026).