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 El Cajon · updated 18 hr ago · showing last good readingAir quality
50GoodUS AQI
PM2.5 11μg/m³PM10 13μg/m³Ozone 50μg/m³NO₂ 17μg/m³
Water monitoring
Los Coches C Nr Lakeside Ca · 7.4 km away
0.08 ft3/sStreamflow
2.50 ftGage height
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.6strongest within 250 km
7 km WSW of Hermosa Beach, CA
15 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 50 (Good). Observed Sep 28, 11:00 PM.
10.7 μg/m³PM2.5
13.4 μg/m³PM10
50.0 μg/m³Ozone
16.8 μg/m³NO₂
1.6 μg/m³SO₂
151.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Los Coches C Nr Lakeside Ca · 7.4 km away · 20 sites in range
0.08 ft3/sStreamflow · Sep 29, 6:00 AM
2.50 ftGage height · Sep 29, 6:00 AM
Source: USGS Water Services ↗
Active weather alerts0
✓ No active National Weather Service alerts for this area.
Source: National Weather Service ↗
Earthquakes — last 30 days15
M3.6↗M2.6↗M3.0↗M2.9↗M2.6↗
7 km WSW of Hermosa Beach, CA
Sep 27, 3:40 PM · 182 km away
9 km WNW of Anza, CA
Sep 23, 10:52 AM · 88 km away
12 km SW of Estacion Coahuila, B.C., MX
Sep 20, 7:50 PM · 191 km away
4 km SSE of Compton, CA
Sep 17, 8:32 PM · 166 km away
27 km SSE of Malibu, CA
Sep 13, 3:47 AM · 198 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
Camp Pendleton Marine Corps Base
San Diego County · NPL Site · 67 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, 6:12 AM (showing last good reading while refreshing). All data is public and carries no personal information.