EPA data as of Oct 2026 · page updated 2026-10-30

Sibley Public Water Supply

Sibley Public Water Supply (EPA ID IA7245047) in Sibley, IA supplies groundwater (wells) to about 2,860 people: no health-based violations since 2016, latest lead result 1 ppb, PFAS not tested.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served2,860
Connections1,364
Sourcegroundwater (wells)
WholesalerNo

Health-based violations

No health-based violations reported since 2016.

Lead

Jul 20251 ppb
Jan 20251 ppb
Jan 20213 ppb
Jan 20186 ppb
Jan 20155 ppb
Jan 20128 ppb
Jan 20090 ppb
Jan 20065 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

ZIP codes served

ZIP codes whose center lies in this system’s service area.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Sibley Public Water Supply had drinking water violations?

No health-based violations reported since 2016.

What is the lead level in Sibley Public Water Supply water?

The latest 90th-percentile lead result (Jul 2025) was 1 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Sibley Public Water Supply have PFAS in its water?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).