(a) Sewer Service and Use Charge - It is proposed that the residential rate notice provide for an increase of up to 6% for fiscal years 2010-11, 2011-12, and 2012-13 and that the commercial rate notice provide for proposed increases for fiscal years 2010-11, 2011-12, and 2012-13 of approximately 3% to 11% for commercial services, depending on the nature of the sewage discharge.