Public water system · TX1700546
ActiveMontgomery County MUD 18
At a glance
Montgomery County MUD 18 (PWSID TX1700546) is an active community water system in Montgomery County, Texas. It reports serving 7,608 people through 2,536 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,608
Service connections
2,536
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Montgomery County MUD 18 compare with other water systems in Montgomery County?
By EPA's size categories, Montgomery County MUD 18 is a medium system (3,301 to 10,000 people). Montgomery County has 438 active public water systems. Its population served is about 4.3 times the county average of 1,784 people per system, and accounts for 1% of the 781,236 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 Montgomery County MUD 18 is about 14% above 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 Montgomery County MUD 18?
EPA lists Montgomery County MUD 18 as owned by a local government. 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. 157 of the 438 active systems in Montgomery County (36%) are also owned by a local government.
Does Montgomery County MUD 18 have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 2016. The violations listed here began between January 2006 and December 2016. By type: 4 monitoring and reporting and 3 public notice, recordkeeping or other. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 7 as resolved. 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 |
|---|---|---|---|---|
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-06-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 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.
Montgomery County MUD 18: frequently asked questions
Who runs Montgomery County MUD 18?
Montgomery County MUD 18 (PWSID TX1700546) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Montgomery County MUD 18 serve?
Montgomery County MUD 18 reports serving 7,608 people through 2,536 service connections in Montgomery County, Texas.
Where does Montgomery County MUD 18 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 Montgomery County MUD 18 have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in December 2016. 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 Montgomery County MUD 18'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 7 violations for this system; none is health-based, and the most recent began in December 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Montgomery County MUD 18's water quality report?
As a community water system, Montgomery County MUD 18 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 Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Conroe | Montgomery | 113,912 | Community | Purchased surface water |
| Porter Special Utility District | Montgomery | 26,388 | Community | Groundwater |
| Montgomery Trace Water System | Montgomery | 25,917 | Community | Purchased surface water |
| Montgomery County MUD 46 | Montgomery | 24,399 | Community | Purchased surface water |
| Montgomery County MUD 47 | Montgomery | 24,171 | Community | Purchased surface water |
| Montgomery County MUD 67 | Montgomery | 16,821 | 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, “Montgomery County MUD 18, PWSID TX1700546, Texas”, https://aquacensus.com/water-systems/texas/montgomery-county-mud-18-tx1700546 (data as of October 1, 2026).