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Public water system record

Capstone Subdivision

Serves an area of Burnet County, TX · 81 people served

Federal records show 8 health-based violations and 10 monitoring/reporting issues for Capstone Subdivision in the last ten years, including an unresolved Lead and Copper Rule violation.

  • TX0270131
  • MARBLE FALLS
  • TX
  • 81 served

System profile

Source water Groundwater
ZIP 78654
EPA system ID TX0270131

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
1
Unresolved
1
Archived by EPA
6
Any acute record
No
Monitoring issues, last 10 years
10

Key facts

  • Capstone Subdivision draws water from 1 well.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2025.
  • Record on file since 2013, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 27 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 220 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 220 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 220 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Lead and Copper Rule
Treatment technique failure
 350 Oct 1, 2020 Active No
Lead and Copper Rule
Treatment technique failure
 350 Dec 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Active
Public Notice
OTHER
 Sep 1, 2024 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 6, 2023 Resolved
E. coli
Monitoring and reporting
 Jun 15, 2023 Resolved
Public Notice
OTHER
 Mar 24, 2022 Resolved
Public Notice
OTHER
 Dec 4, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
 Sep 29, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jul 1, 2020 Resolved
Public Notice
OTHER
 Jan 19, 2020 Resolved

Full record since 2013

EPA's records for Capstone Subdivision go back to 2013. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 1 7
October 19, 2016 to 2019 1 0
2020s 7 10

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2016, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2016 Resolved

What the violations mean

Total Trihalomethanes (TTHMs)

6 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Lead and Copper Rule

2 incidents

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Capstone Subdivision draws water from 1 well. 1 smaller public system such as schools, businesses or campgrounds buys water from Capstone Subdivision.

Annual water quality report

Capstone Subdivision must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Capstone Subdivision for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.

Certified drinking water labs by state EPA guidance for private wells