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 San Leandro · updated 16 hr ago · showing last good readingAir quality
52ModerateUS AQI
PM2.5 12μg/m³PM10 17μg/m³Ozone 70μg/m³NO₂ 5μg/m³
Water monitoring
Castro Valley C A Hayward Ca · 8.3 km away
0.21 ft3/sStreamflow
0.66 ftGage height
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, 7:00 PM.
11.5 μg/m³PM2.5
16.6 μg/m³PM10
70.0 μg/m³Ozone
5.2 μg/m³NO₂
1.1 μg/m³SO₂
142.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Castro Valley C A Hayward Ca · 8.3 km away · 84 sites in range
0.21 ft3/sStreamflow · Sep 1, 1:20 AM
0.66 ftGage height · Sep 1, 1:20 AM
Source: USGS Water Services ↗
Active weather alerts0
✓ No active National Weather Service alerts for this area.
Source: National Weather Service ↗
Earthquakes — last 30 days20
M2.7↗M2.7↗M2.7↗M2.8↗M2.5↗
22 km SE of Yosemite Valley, CA
Aug 28, 2:51 PM · 241 km away
6 km NNW of Redwood Valley, CA
Aug 28, 12:15 PM · 200 km away
4 km W of Walker, CA
Aug 24, 8:54 AM · 247 km away
10 km N of Lake Pillsbury, CA
Aug 23, 9:37 AM · 209 km away
2 km SE of Concord, CA
Aug 17, 8:18 AM · 29 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
AMCO Chemical
Oakland · NPL Site · 15 km away
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 Sep 1, 2:10 AM (showing last good reading while refreshing). All data is public and carries no personal information.