4/6/09 - SETTLEMENT AGMT FOR RECOVERY OF PAST RESPONSE COSTS. SETTLING PARTIES: WALTER EDWIN ( EDDIE ) UNDERHILL AND SHEILA UNDERHILL. WITHIN 30 DAYS, SETTLING PARTIES SHALL PAY TO EPA THE SUM OF $150,000 PLUS ANY ADDITIONAL SUM ACCOUNTING FOR INTEREST ON THAT AMOUNT CALCULATED FROM 30 DAYS AFTER THE EFFECTIVE DATE THRU THE DATE OF PAYMENT.