A
86

US Water Score: A

Anderson, TX 77830

Grimes County · Population served: 4,843 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🌊
WICKSON CREEK SUD GRIMES COUNTY
Groundwater · Pop. 4,843
PWSID: TX0930003
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ANDERSON WATER SYSTEM
Groundwater · Pop. 226
PWSID: TX0930011
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RICHARDS WATER SYSTEM
Groundwater · Pop. 200
PWSID: TX0930015
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SHIRO WATER SYSTEM
Groundwater · Pop. 103
PWSID: TX0930014
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ROANS PRAIRIE
Groundwater · Pop. 40
PWSID: TX0930016

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.635
15 ppb 1 ppb Passed

PFAS / Forever Chemicals

1 detected Below comparison values

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFBA5.8 pptNo standard500 pptNo federal MCL shown

Violation History (Last 5 Years)

223Total (5yr)
5Health-Based
174Major

Water Quality Summary

Understanding Your Water in Anderson

Tap water quality in Anderson, Texas (77830) receives an overall grade of A (Excellent) with a score of 86 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 6 points above the Texas state average of 80. Compared to the national average (75), this area performs significantly better. The area is served by 5 water systems providing water to approximately 4,843 people, using groundwater sources. PFAS testing detected 1 compound, all below the EPA final MCL values used for comparison. Over the past 5 years, water systems here have accumulated 223 violations, including 5 health-based violations.

Your Score 86/100 A
vs State 6 pts above Texas avg (80)
vs National 11 pts above national avg (75)

What a Grade A Means

A score of 86/100 means public water-system records for Anderson, TX show relatively few concerns in the US Water Score model. This is an internal score, not an EPA safety rating, and it does not guarantee conditions at any specific tap.

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

Based on public water-system records, Anderson, Texas receives an internal US Water Score grade of A (Excellent) with a score of 86/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.

ZIP code 77830 is served by 5 water systems using groundwater sources, providing water to approximately 4,843 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead levels in Anderson, Texas are 0.635 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

1 PFAS compound were detected in water serving Anderson, Texas, with reported values below the EPA final MCL values used by this site. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.

Water systems serving Anderson, Texas have received 223 violations in the last 5 years, including 5 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 (PFAS), residents in Anderson, 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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