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 Modesto · updated 17 hr ago · showing last good readingAir quality
58ModerateUS AQI
PM2.5 15μg/m³PM10 41μg/m³Ozone 106μg/m³NO₂ 2μg/m³
Water monitoring
Tuolumne R A Modesto Ca · 1.7 km away
211 ft3/sStreamflow
36.73 ftGage height
25.1 deg CWater temperature
96 uS/cm @25CSpecific conductance
Active alerts
✓ No active weather alerts
Earthquakes · 30 days
M3.8strongest within 250 km
3 km N of San Leandro, 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 58 (Moderate). Observed Aug 31, 6:00 PM.
14.7 μg/m³PM2.5
40.6 μg/m³PM10
106.0 μg/m³Ozone
2.2 μg/m³NO₂
1.3 μg/m³SO₂
133.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Water monitoring — nearest site
Tuolumne R A Modesto Ca · 1.7 km away · 39 sites in range
211 ft3/sStreamflow · Sep 1, 1:30 AM
36.73 ftGage height · Sep 1, 1:30 AM
25.1 deg CWater temperature · Sep 1, 1:30 AM
96 uS/cm @25CSpecific conductance · Sep 1, 1:30 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↗M2.5↗M2.7↗M2.9↗M2.8↗
22 km SE of Yosemite Valley, CA
Aug 28, 2:51 PM · 139 km away
13 km W of Round Valley, CA
Aug 25, 9:51 AM · 201 km away
17 km SSE of Shandon, CA
Aug 25, 1:05 AM · 245 km away
19 km SW of Toms Place, CA
Aug 24, 1:23 PM · 192 km away
19 km SW of Toms Place, CA
Aug 24, 9:39 AM · 192 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
Modesto Ground Water Contamination
Modesto · NPL Site · 2 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, 1:51 AM (showing last good reading while refreshing). All data is public and carries no personal information.