Public water system record

Mystic Oaks Water

Serves an area of Travis County, TX · 132 people served

Federal records show no health-based violations and 1 monitoring/reporting issue for Mystic Oaks Water in the last ten years. At least one of these issues remains unresolved.

  • TX2270044
  • MANCHACA
  • TX
  • 132 served

System profile

Source water Groundwater
ZIP 78652
EPA system ID TX2270044

Verify this system on EPA ECHO →

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

Key facts

  • Mystic Oaks Water draws water from 1 well.
  • Most recent formal enforcement: signed compliance agreement by Texas, October 2008.
  • Record on file since 1979, with 21 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 45 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.

None since October 2016.

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

Full record since 1979

EPA's records for Mystic Oaks Water go back to 1979. Before October 19, 2016 they list 21 health-based violations (16 resolved, 5 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 2 0
1980s 3 0
2000s 11 1
2010 to October 18, 2016 5 4
2020s 0 1

Most recent health-based violation before October 19, 2016: Fluoride, began October 2011, Resolved.

Show all 21 health-based violations before October 19, 2016
Contaminant Start date Status
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Oct 1, 2011 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Jan 1, 2011 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Oct 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.2 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jul 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Jan 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1475 mg/L, federal limit 4 mg/L (at or just above the limit)
Oct 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Jul 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Apr 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Oct 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Jul 1, 2008 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Apr 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.08125 mg/L, federal limit 4 mg/L (at or just above the limit)
Apr 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Jan 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1 mg/L, federal limit 4 mg/L (at or just above the limit)
Oct 1, 2006 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.2 mg/L, federal limit 4 mg/L (1.1 times the limit)
Jul 1, 2006 Resolved
Fluoride
Contaminant limit exceeded
Apr 15, 1988 Archived
Fluoride
Contaminant limit exceeded
Jul 1, 1985 Archived
Fluoride
Contaminant limit exceeded
Jul 23, 1982 Archived
Fluoride
Contaminant limit exceeded
May 25, 1979 Archived
Fluoride
Contaminant limit exceeded
May 25, 1979 Archived

Enforcement actions

Texas regulators took 1 formal enforcement action against Mystic Oaks Water in 2008. The most recent was a signed compliance agreement in October 2008.

Date By Action Violations covered
Oct 22, 2008 Texas Signed compliance agreement 12 violations (12 health-based): Fluoride

Where the water comes from

Mystic Oaks Water draws water from 1 well.

Annual water quality report

Mystic Oaks Water 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 Mystic Oaks Water 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.