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 Rancho Santa Margarita · updated 18 hr ago · showing last good readingAir quality
47GoodUS AQI
PM2.5 9μg/m³PM10 12μg/m³Ozone 63μg/m³NO₂ 15μg/m³
Water monitoring
Santiago C A Modjeska Ca · 8.1 km away
6.89 ftGage height
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.6strongest within 250 km
7 km WSW of Hermosa Beach, 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 47 (Good). Observed Sep 28, 10:00 PM.
9.2 μg/m³PM2.5
12.3 μg/m³PM10
63.0 μg/m³Ozone
15.2 μg/m³NO₂
1.5 μg/m³SO₂
160.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Santiago C A Modjeska Ca · 8.1 km away · 65 sites in range
6.89 ftGage height · Sep 29, 5:00 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
M3.6↗M2.6↗M3.0↗M3.2↗M2.6↗
7 km WSW of Hermosa Beach, CA
Sep 27, 3:40 PM · 83 km away
17 km WSW of Johannesburg, CA
Sep 24, 3:11 AM · 187 km away
17 km WSW of Johannesburg, CA
Sep 23, 8:44 PM · 187 km away
17 km WSW of Johannesburg, CA
Sep 23, 3:01 PM · 186 km away
9 km WNW of Anza, CA
Sep 23, 10:52 AM · 77 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
El Toro Marine Corps Air Station
El Toro · NPL Site · 11 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 29, 5:27 AM (showing last good reading while refreshing). All data is public and carries no personal information.