EPCRA Tier II Chemical Reporting: Don't Let Thresholds Sneak Up on You
The Emergency Planning and Community Right-to-Know Act (EPCRA) requires facilities that store hazardous chemicals above certain thresholds to file Tier II reports annually with the local fire department, State Emergency Response Commission (SERC), and Local Emergency Planning Committee (LEPC).
Construction companies often overlook Tier II because they think of themselves as "temporary" operations. But a large jobsite with fuel storage, solvents, adhesives, and concrete chemicals can easily exceed reporting thresholds—especially when quantities across multiple containers are aggregated.
Do Construction Sites Need to File Tier II?
Yes, if:
- You store 10,000 pounds or more of any hazardous chemical (general threshold)
- You store 500 pounds or more (or the Threshold Planning Quantity, whichever is lower) of an Extremely Hazardous Substance (EHS)
- The chemical has an SDS (which means it's covered under HazCom and EPCRA)
Common Construction Chemicals That Trigger Reporting
| Chemical | Common Form | Threshold |
|---|---|---|
| Diesel fuel | Fuel tanks for equipment | 10,000 lbs (~1,400 gallons) |
| Gasoline | Generator and vehicle fuel | 10,000 lbs (~1,600 gallons) |
| Portland cement | Bags and bulk | 10,000 lbs (50 bags of 94 lbs) |
| Acetylene | Welding gas cylinders | 10,000 lbs |
| Muriatic acid | Concrete cleaning | 500 lbs (EHS) |
| Epoxy resins | Coatings and adhesives | 10,000 lbs |
| Propane | Temporary heating | 10,000 lbs |
A single 500-gallon diesel tank (about 3,500 lbs) doesn't trigger reporting alone—but aggregate all diesel across the jobsite and you may exceed the threshold.
The Manual Tracking Problem
Most construction companies track chemical inventory in spreadsheets—if they track it at all. The problems:
- Unit conversion errors — chemicals are purchased in gallons, liters, and drums but Tier II reports require pounds
- Aggregation gaps — quantities across multiple storage areas aren't totaled
- Density data missing — converting volume to weight requires density values that aren't always on the SDS
- Fluctuating inventory — construction sites receive and consume chemicals continuously
- Multi-site complexity — different chemicals at different quantities on every jobsite
How HazComFast Automates Tier II Tracking
1. Automatic Unit Conversion
When you enter a chemical quantity in any unit (gallons, liters, drums, bags), HazComFast automatically converts to pounds using:
- Density from the SDS (Section 9: Physical/Chemical Properties)
- Standard conversion factors for common containers
- Manual density entry when SDS data is unavailable
2. Threshold Monitoring
The chemical inventory template continuously monitors:
- Current total pounds per chemical across all storage locations on the jobsite
- Maximum stored at any time during the reporting year (peak quantity)
- Distance to threshold — flagging chemicals approaching 75%, 90%, and 100% of the reportable quantity
3. Automated Alerts
When a chemical approaches its reporting threshold:
- Yellow alert at 75% of threshold: "Diesel fuel is approaching Tier II reporting threshold"
- Orange alert at 90%: "Diesel fuel will likely trigger Tier II reporting this quarter"
- Red alert at 100%: "Diesel fuel has exceeded Tier II threshold — filing required"
4. Report Generation
When filing is required, HazComFast generates Tier II report data including:
- Chemical name, CAS number, and hazard categories
- Maximum amount on site during the reporting year
- Average daily amount
- Number of days on site
- Storage location descriptions
- Contact information for the facility emergency coordinator
Filing Deadlines
- Annual Tier II reports are due March 1 for the previous calendar year
- Reports go to: SERC, LEPC, and local fire department
- Many states use the Tier2 Submit online system
- Penalties for non-filing: up to $71,545 per day per violation (EPA, 40 CFR 19.4)
Integration with HazComFast
Tier II tracking connects to:
- Chemical Inventory — real-time quantity tracking per jobsite
- SDS Database — density and hazard classification data
- GHS Labels — proper labeling for all stored chemicals
- Emergency Action Plans — chemical release response procedures
- Dashboard — threshold status visible at organization and jobsite level
Getting Started
Tier II tracking is included in Professional and Enterprise plans. See pricing →
FAQ
Do temporary construction sites really need to file Tier II?
Yes, if chemicals are stored above threshold quantities for any duration during the calendar year. EPCRA applies to facilities, and a construction jobsite is a facility for reporting purposes.
What if we never exceed 10,000 pounds of any single chemical?
If no individual chemical exceeds its applicable threshold, no Tier II filing is required for that chemical. But remember to aggregate quantities across all containers and storage areas on the jobsite.
Can HazComFast generate the actual Tier II submission file?
HazComFast generates all the data needed for Tier II reporting in a format compatible with the EPA's Tier2 Submit system. The actual submission is made through your state's reporting portal.