B
75

Good Water Quality

Williamsburg, PA 16693

Blair County · Population served: 1,800 · Data updated March 2026

Water Systems Serving This Area

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WILLIAMSBURG MUNIC AUTH
Groundwater · Pop. 1,800
PWSID: PA4070022

Violation History (Last 5 Years)

11Total (5yr)
0Health-Based
7Major

Water Quality Summary

Understanding Your Water in Williamsburg

Tap water quality in Williamsburg, Pennsylvania (16693) receives an overall grade of B (Good) with a score of 75 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 12 points above the Pennsylvania state average of 63. The area is served by Williamsburg Munic Auth, a groundwater system providing water to approximately 1,800 people. The area has 11 violations over the past 5 years, though none were classified as health-based.

Your Score 75/100 B
vs State 12 pts above Pennsylvania avg (63)
vs National Equal to national average (75)

What a Grade B Means

A score of 75/100 means the water in Williamsburg, PA is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Williamsburg, Pennsylvania receives a grade of B (Good) with a score of 75/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 16693 is served by 1 water system using groundwater sources, providing water to approximately 1,800 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.

No lead data is currently available for ZIP code 16693. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

No PFAS ("forever chemicals") were detected in water systems serving Williamsburg, Pennsylvania during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Williamsburg, Pennsylvania have received 11 violations in the last 5 years. 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.

Water in Williamsburg, Pennsylvania shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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