Is GFP 5-C/TWIN LAKES RECREATION AREA Water Safe to Drink in 2026?
South Dakota · PWSID SD4600826 · Ground water
Population served
70
Cities served
—
State / jurisdiction
South Dakota (SD)
PWSID
SD4600826
F
TAP WATER GRADE
High risk
Model score 30/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
26 violation record(s) in the latest EPA SDWA quarterly snapshot
Water operator? Publish your official 2027 CCR here — residents already find this page. Claim free →
CONTAMINANTS — EPA UCMR5 MONITORING
No UCMR5 PFAS detects on file for this PWS in our bundled national dataset — the system may be smaller than UCMR5 thresholds, had non-detects, or results are not yet linked to this ID. Your retailer Annual Water Quality Report lists other regulated contaminants (chlorine, DBPs, nitrates, etc.).
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 26 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
Based on GFP 5-C/TWIN LAKES RECREATION AREA's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR GFP 5-C/TWIN LAKES RECREATION AREA
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR GFP 5-C/TWIN LAKES RECREATION AREA · Chosen for GFP 5-C/TWIN LAKES RECREATION AREA because the latest federal SDWA snapshot lists substantial violation activity. Certified reverse osmosis provides the broadest residential barrier for households that want margin beyond legal compliance.
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