US Water Score: C
| Contaminant | Detected Level | EPA MCL | Health Guideline | Status |
|---|---|---|---|---|
| Lead |
2.0
|
15 ppb | 1 ppb | Warning |
Water Quality Summary
Tap water quality in Buffalo Gap, South Dakota (57722) receives an overall grade of C (Mixed record-based signals) with a score of 60 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 33 points below the South Dakota state average of 93. Compared to the national average (75), this area scores significantly lower. The area is served by Buffalo Gap, a groundwater system providing water to approximately 126 people. Testing has found elevated levels of Lead that warrant attention. Over the past 5 years, water systems here have accumulated 9 violations, including 2 health-based violations.
A score of 60/100 indicates fair performance in the US Water Score model for Buffalo Gap, SD. The records show noteworthy concerns, such as elevated contaminant levels, violation history, or both. Review the detailed contaminant data and official utility reports before making decisions.
Health Information
Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.
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.
Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.
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
Buffalo Gap, South Dakota receives an internal US Water Score grade of C (Fair) with a score of 60/100. Our model found some system-level concerns, such as violation history or elevated contaminant levels. Review your utility's Consumer Confidence Report and consult a qualified professional for household-specific health questions.
ZIP code 57722 is served by 1 water system using groundwater sources, providing water to approximately 126 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 was reported at 2.0 ppb in public-system records for Buffalo Gap, South Dakota. This is below the currently applicable EPA action level of 15 ppb, but may be above more protective health guidance; EPA's future LCRI action level is 10 ppb. Household plumbing can materially change tap-level exposure, so consider certified filtration and individual tap testing, especially where children are present.
Water systems serving Buffalo Gap, South Dakota were not tested for PFAS under the EPA's UCMR5 monitoring program. This does not mean PFAS are absent — it means no data is currently available. UCMR5 testing covered approximately 10,000 of the largest water systems nationwide. You can request PFAS testing from your water utility or use a certified home test kit.
Water systems serving Buffalo Gap, South Dakota have received 9 violations in the last 5 years, including 2 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), residents in Buffalo Gap, South Dakota should consider: NSF/ANSI 53 certified filter — specifically rated for lead reduction. Pitcher filters (like Brita Longlast or PUR) and under-sink systems both work. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.
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