Perfect World
Walnut Creek
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 Walnut Creek · updated 1 d ago · showing last good reading
Air quality
52ModerateUS AQI
PM2.5 9μg/m³PM10 13μg/m³Ozone 69μg/m³NO₂ 3μg/m³
Water monitoring
Suisun Bay A Benicia Bridge Nr Benicia Ca · 15.9 km away
20.2 deg CWater temperature
15800 uS/cm @25CSpecific conductance
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.9strongest within 250 km
6 km NW of Pinnacles, CA
20 quakes ≥ M2.5
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 52 (Moderate). Observed Aug 31, 12:00 PM.

9.2 μg/m³PM2.5
12.7 μg/m³PM10
69.0 μg/m³Ozone
3.0 μg/m³NO₂
1.7 μg/m³SO₂
122.0 μg/m³CO

Water monitoring — nearest site

Suisun Bay A Benicia Bridge Nr Benicia Ca · 15.9 km away · 95 sites in range

20.2 deg CWater temperature · Aug 31, 7:00 PM
15800 uS/cm @25CSpecific conductance · Aug 31, 7:00 PM

Active weather alerts0

✓ No active National Weather Service alerts for this area.

Earthquakes — last 30 days20

M2.7
22 km SE of Yosemite Valley, CA
Aug 28, 2:51 PM · 235 km away
M2.7
6 km NNW of Redwood Valley, CA
Aug 28, 12:15 PM · 186 km away
M2.7
4 km W of Walker, CA
Aug 24, 8:54 AM · 232 km away
M2.8
10 km N of Lake Pillsbury, CA
Aug 23, 9:37 AM · 192 km away
M2.5
2 km SE of Concord, CA
Aug 17, 8:18 AM · 8 km away

Superfund sites

99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.

Concord Naval Weapons Station
Concord · NPL Site · 17 km away
Open →
See every Superfund site in CA

The state’s energy ledger

What CA’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.

Open the CA energy dossier →

Snapshot generated Aug 31, 7:44 PM (showing last good reading while refreshing). All data is public and carries no personal information.