Is HARRIS COUNTY MUD 189 required to publish a Consumer Confidence Report?

Yes. HARRIS COUNTY MUD 189 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is HARRIS COUNTY MUD 189’s next Consumer Confidence Report due?

HARRIS COUNTY MUD 189’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

HOUSTON, TX · Harris County

HARRIS COUNTY MUD 189 Water System

Consumer Confidence Report status

HARRIS COUNTY MUD 189 must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for HARRIS COUNTY MUD 189.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Texas’s official records. Always confirm current status with Texas before making decisions based on this information.

System facts

System ID (PWSID): TX1011809
System type: Community Water System
Population served: 6,906
Service connections: 2,302
Ownership: local government
Water source: groundwater (wells)

HARRIS COUNTY MUD 189 is one of 817 community water systems in Texas in the 3,301 to 10,000 people size category, serving 6,906 people from groundwater.

As of August 1, 2026, its federal record holds 16 entries between 1984 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 16, 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Radionuclides and Revised Rad Rule, and the Lead and Copper Rule.

Violation history

Monitoring, Regular
—
Chlordane
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Endrin
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
LASSO
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2019 – December 31, 2021
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2019 – December 31, 2021
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2015 – October 3, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 13, 2015 – December 29, 2015
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 26, 2014 – September 24, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2014 – June 30, 2014
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2013 – October 2, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 5, 1984 – April 4, 1985
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 5, 1984 – April 4, 1985
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2019 – December 31, 2021	Monitoring, Regular	Chlordane	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Endrin	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	LASSO	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Heptachlor epoxide	—	Archived
January 1, 2019 – December 31, 2021	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 2015 – October 3, 2016	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
February 13, 2015 – December 29, 2015	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 26, 2014 – September 24, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2013 – October 2, 2015	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 5, 1984 – April 4, 1985	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 5, 1984 – April 4, 1985	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

October 3, 2016State Compliance achieved4 linked violations
November 18, 2015State Public Notification requested9 linked violations
April 10, 2015State Compliance achieved9 linked violations
September 26, 2014State Public Notification received4 linked violations
August 26, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 26, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 27, 2008State Public Notification received1 linked violation
August 7, 2008State Public Notification requested1 linked violation
August 7, 2008State Violation/Reminder Notice1 linked violation
February 1, 1991State Formal Notice of Violation issued5 linked violations
April 5, 1984State Formal Notice of Violation issued1 linked violation
February 1, 1983State Public Notification received1 linked violation
December 1, 1982State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Common questions

Is HARRIS COUNTY MUD 189 required to publish a Consumer Confidence Report?: Yes. HARRIS COUNTY MUD 189 is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is HARRIS COUNTY MUD 189’s next Consumer Confidence Report due?: HARRIS COUNTY MUD 189’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does HARRIS COUNTY MUD 189 have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for HARRIS COUNTY MUD 189.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

CONE, DERWOOD

713-651-5151

HOUSTON, TX 77010-3095