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Public water system record

Sandy Harbor Subdivision

Serves an area of Llano County, TX · 333 people served

Federal records show 3 health-based violations and 1 monitoring/reporting issue for Sandy Harbor Subdivision in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX1500009
  • AUSTIN
  • TX
  • 333 served

System profile

Source water Purchased surface water
ZIP 78714
EPA system ID TX1500009

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • Sandy Harbor Subdivision buys its water from City of Horseshoe Bay.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit), 2019.
  • Most recent formal enforcement: compliance order with a penalty by Texas, June 2020.
  • Record on file since 2004, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 70 unknown out of 122 service lines.

Check whether Sandy Harbor Subdivision serves your address

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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 0.117 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 220 Apr 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 220 Jan 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 220 Oct 1, 2018 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
 Jul 22, 2019 Resolved

Full record since 2004

EPA's records for Sandy Harbor Subdivision go back to 2004. Before October 19, 2016 they list no health-based violations and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 3
October 19, 2016 to 2019 3 1

Enforcement actions

Texas regulators took 1 formal enforcement action against Sandy Harbor Subdivision in 2020. The most recent was a compliance order with a penalty in June 2020.

Date By Action Violations covered
Jun 16, 2020 Texas Compliance order with a penalty 3 violations (3 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Sandy Harbor Subdivision buys its water from City of Horseshoe Bay. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Sandy Harbor 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 Sandy Harbor 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