In addition to raising water fees and earmarking the revenue, the law requires departmental and municipal governments to spend a minimum of 1% of their current income to purchase and/or manage lands that protect municipal water sources or for payment for ecosystem services (PES). However, the fees have been set too low to achieve these objectives (Garcia and Calderon, 2013). The fee collection rate has also been a problem, though it improved from 40% in 2007 to 67.5% in 2010.