Environmental watch
What's in the air, water, and ground around here.
Live environmental OSINT for your community, pulled from public federal feeds — the EPA, the USGS, and the National Weather Service. No account, no tracking; every number links back to its public source. Auto-refreshes about every 30 minutes.
🌎 Environmental watch
Live public data for Sioux Falls · updated 10 hr ago · showing last good readingAir quality
30GoodUS AQI
PM2.5 3μg/m³PM10 3μg/m³Ozone 42μg/m³NO₂ 10μg/m³
Water monitoring
Big Sioux R At North Cliff Ave At Sioux Falls, Sd · 3 km away
208 ft3/sStreamflow
5.35 ftGage height
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
✓ None ≥ M2.5 nearby
Sources: Open-Meteo Air Quality, USGS Water Services, National Weather Service, USGS Earthquake Catalog, EPA National Priorities List. All public, no personal data.
Air quality — full readout
US Air Quality Index 30 (Good). Observed Aug 14, 10:00 PM.
2.7 μg/m³PM2.5
2.8 μg/m³PM10
42.0 μg/m³Ozone
9.9 μg/m³NO₂
0.6 μg/m³SO₂
158.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Big Sioux R At North Cliff Ave At Sioux Falls, Sd · 3 km away · 17 sites in range
208 ft3/sStreamflow · Aug 15, 2:30 AM
5.35 ftGage height · Aug 15, 2:30 AM
Source: USGS Water Services ↗
Active weather alerts0
✓ No active National Weather Service alerts for this area.
Source: National Weather Service ↗
Earthquakes — last 30 days0
✓ No earthquakes ≥ M2.5 within 250 km.
Source: USGS Earthquake Catalog ↗
Superfund sites
2 active EPA Superfund (National Priorities List) sites in SD of 4 ever listed.
Ellsworth Air Force Base
Rapid City · NPL Site · 515 km away
The state’s energy ledger
What SD’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the SD energy dossier →Snapshot generated Aug 15, 3:23 AM (showing last good reading while refreshing). All data is public and carries no personal information.