D
47

Poor Water Quality

Sandy, TX 78665

Blanco County · Population served: 236,287 · Data updated March 2026

Water Systems Serving This Area

🏔
HEADWATERS AT BARTON CREEK
Surface water · Pop. 2,315
PWSID: TX1050184
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MANVILLE WSC
Surface water · Pop. 39,648
PWSID: TX2270033
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TRAVIS COUNTY WCID 18
Surface water · Pop. 5,733
PWSID: TX2270083
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TRAVIS COUNTY WCID 10
Surface water · Pop. 9,204
PWSID: TX2270182
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BARTON CREEK WSC
Surface water · Pop. 633
PWSID: TX2270313

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
3.4
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

37 detected 6 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFNA24.3 ppt10 ppt10 pptExceeded
PFPeA21.2 pptNo standardUnregulated
PFBA15.8 pptNo standard500 pptUnregulated
PFOS12.4 ppt4 ppt4 pptExceeded
PFBS10.0 ppt2000 ppt100 pptBelow limit
PFBA9.9 pptNo standard500 pptUnregulated
PFBS9.3 ppt2000 ppt100 pptBelow limit
PFHxA9.2 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

10Total (5yr)
4Health-Based
5Major

Water Quality Summary

Understanding Your Water in Sandy

Tap water quality in Sandy, Texas (78665) receives an overall grade of D (Poor) with a score of 47 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 22 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 12 water systems providing water to approximately 236,287 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 6 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 10 violations, including 4 health-based violations.

Your Score 47/100 D
vs State 22 pts below Texas avg (68)
vs National 28 pts below national avg (75)

What a Grade D Means

A score of 47/100 signals poor water quality in Sandy, TX. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Sandy, Texas receives a grade of D (Poor) with a score of 47/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 78665 is served by 12 water systems using surface water, groundwater sources, providing water to approximately 236,287 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 3.4 ppb in Sandy, Texas. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 37 PFAS compounds were detected in water serving Sandy, Texas, and 6 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Sandy, Texas have received 10 violations in the last 5 years, including 4 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Sandy, Texas should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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