McMinnville officials are rushing to secure a $4 million loan to upgrade the city’s Wastewater Treatment Plant. The deadline to submit the loan request is March 25.The loan comes from the state and offers the city a low-interest rate, as well as $200,000 in principal forgiveness leaving $3.8 million the city has to repay.City administrator Bill Brock says the city will be at risk of paying a higher interest rate and will definitely lose the principal forgiveness. “We have a loan packet that we need to get turned in by March 25,” said Brock.