0
NOVs ISSUED
30 months
94%
SWPPP COMPLIANCE
1
BMP REPAIR NEEDED
12
RAIN EVENTS LOGGED
1. SWPPP Status Monitor
Stormwater Pollution Prevention Plan — Station B Site
Recent Rain Events
Feb 12, 2026
0.62" / 4.5 hrs
✓ COMPLIANT
Mar 3, 2026
1.14" / 8.2 hrs
✓ COMPLIANT
Apr 8, 2026
0.38" / 2.1 hrs
⚠ BMP FAILURE NOTED
BMP Status — As of April 28
| BMP | Location | Status |
|---|---|---|
| Silt Fence | Perimeter — N/S/E | OK |
| Fiber Roll | Storm drain inlets | OK |
| Storm Drain Inlet Protection | Grid D inlet #3 | REPAIR NEEDED |
| Concrete Washout Area | Station B staging | OK |
| Tracking Control (rock pad) | Main site entrance | OK |
SWPPP Compliance
94%
2. Noise Monitoring
Weekly average dB(A) vs. City threshold — 75 dB(A) daytime
Wk 4/7
Wk 4/14
Wk 4/21
Wk 4/28
City limit: 75 dB(A) — All readings within threshold
Week 4/21 spike (68 dB): Attributed to concrete saw-cutting activity at Station A. Crew was operating two saws simultaneously. AI flagged the reading and recommended staggering operations — implemented April 24.
3. Air Quality — PM2.5 Monitoring
Particulate matter readings vs. EPA NAAQS threshold (35 μg/m³ 24hr)
Apr 22
8.4 μg/m³
✓ GOOD
Apr 23
12.1 μg/m³
✓ GOOD
Apr 24
21.7 μg/m³
◎ MODERATE
Apr 25
14.3 μg/m³
✓ GOOD
Apr 28
9.8 μg/m³
✓ GOOD
Apr 24 spike (21.7 μg/m³): Correlated with saw-cutting day and onshore wind conditions. No SCAQMD threshold exceeded. AI recommends dust suppression water truck for future heavy saw-cutting days.
Compiling environmental monitoring data and generating agency-ready report...