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 Costa Mesa · updated 21 hr ago · showing last good readingAir quality
67ModerateUS AQI
PM2.5 18μg/m³PM10 23μg/m³Ozone 91μg/m³NO₂ 4μg/m³
Water monitoring
Bonita C A Irvine Ca · 5.3 km away
1.00 ft3/sStreamflow
10.34 ftGage height
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.6strongest within 250 km
14 km N of Warner Springs, CA
12 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 67 (Moderate). Observed Aug 31, 1:00 PM.
17.6 μg/m³PM2.5
22.7 μg/m³PM10
91.0 μg/m³Ozone
3.6 μg/m³NO₂
1.2 μg/m³SO₂
118.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Bonita C A Irvine Ca · 5.3 km away · 41 sites in range
1.00 ft3/sStreamflow · Aug 31, 7:45 PM
10.34 ftGage height · Aug 31, 7:45 PM
Source: USGS Water Services ↗
Active weather alerts0
✓ No active National Weather Service alerts for this area.
Source: National Weather Service ↗
Earthquakes — last 30 days12
M2.9↗M3.1↗M3.6↗M2.7↗M2.8↗
22 km SSW of La Quinta, CA
Aug 31, 11:04 AM · 142 km away
12 km WSW of Salton City, CA
Aug 25, 8:17 PM · 178 km away
14 km N of Warner Springs, CA
Aug 19, 7:31 AM · 120 km away
35 km NNW of Santa Barbara Is., CA
Aug 18, 1:12 PM · 121 km away
6 km SE of Ontario, CA
Aug 16, 8:35 PM · 51 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 · 19 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 Aug 31, 8:44 PM (showing last good reading while refreshing). All data is public and carries no personal information.