The State of Colorado put Regulation 85 in effect in 2012. This regulation mandates that Total Phosphorous be below 1 Mg/L and that Total Inorganic Nitrogen be below 10 Mg/L. The larger facilities had to meet that immediately. They gave a break to smaller facilities to delay the challenge of upgrading their facilities. When the City received its new discharge permit from the State which was effective July 1, 2018, there was a compliance schedule from the State outlining steps that the City is required to follow, in order to meet the new Regulation 85 requirements by January 31, 2023.