Public water system · TX0500020
ActiveMountain WSC
At a glance
Mountain WSC (PWSID TX0500020) is an active community water system in Coryell County, Texas. It reports serving 2,400 people through 802 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,400
Service connections
802
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Mountain WSC compare with other water systems in Coryell County?
By EPA's size categories, Mountain WSC is a small system (501 to 3,300 people). Coryell County has 13 active public water systems, and Mountain WSC is the 6th-largest of them by population served. Its population served is about 59% below the county average of 5,796 people per system, and accounts for 3.2% of the 75,353 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 Mountain WSC is about 64% 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. 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 Mountain WSC?
EPA lists Mountain WSC 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. 12 of the 13 active systems in Coryell County (92%) are also owned by a local government.
Does Mountain WSC 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 2016. The violations listed here began between January 2016 and December 2016. By type: 6 contaminant level above the legal limit, 3 public notice, recordkeeping or other and 3 monitoring and reporting. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2016-12-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2016-12-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2016-11-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2016-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2016-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2016-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2016-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | 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.
Mountain WSC: frequently asked questions
Who runs Mountain WSC?
Mountain WSC (PWSID TX0500020) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Mountain WSC serve?
Mountain WSC reports serving 2,400 people through 802 service connections in Coryell County, Texas.
Where does Mountain WSC 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 Mountain WSC 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 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 Mountain WSC'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 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 Mountain WSC's water quality report?
As a community water system, Mountain WSC 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 Coryell County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Copperas Cove | Coryell | 41,669 | Community | Purchased surface water |
| City of Gatesville | Coryell | 16,135 | Community | Surface water |
| Coryell City Water Supply District | Coryell | 6,042 | Community | Purchased surface water |
| Multi-County WSC | Coryell | 3,631 | Community | Purchased surface water |
| Fort Gates WSC | Coryell | 2,500 | Community | Purchased surface water |
| Topsey WSC | Coryell | 963 | 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, “Mountain WSC, PWSID TX0500020, Texas”, https://aquacensus.com/water-systems/texas/mountain-wsc-tx0500020 (data as of October 1, 2026).