MO SB680

Reduces petroleum release threshold from 50,000 gallons to 3,000 gallons for liquids (and maintains 300 cubic feet for gases) to constitute a hazardous substance emergency

Caps liability of persons controlling hazardous substances at 25 percent of reasonable and necessary emergency response and cleanup costs incurred by political subdivisions and volunteer fire protection associations

Requires political subdivisions and volunteer fire protection associations to submit itemized cost statements within 60 days of cleanup completion, with detailed explanations of cost reasonableness and necessity

Establishes 30-day payment deadline for cost statements, with appeals process to the director of the Department of Natural Resources if costs are contested, with director's decision final after 30 additional days unless judicial review is sought

Allows political subdivisions and volunteer fire protection associations to seek advance reimbursement from the hazardous waste fund if they demonstrate need for immediate relief and unlikely prompt payment from the responsible party