June 7, 1934
Midway City to vote on Sewer Project at a meeting of the Midway City sewer committee on June 6, 1934 - it was decided to present to the voters a proposal to form a sanitary district.

September 20, 1950
First meeting held at 14842 Monroe Street. 

September 15, 1960
Collection fee of $1.25 per month added for solid waste service until the lot was placed on the tax roll. 

April 1, 1970
Discussion on Director McWhinney’s expenditures to protect his seat on the Westminster City Council. 

November 19, 1980First discussion of Directors belonging to PERS Retirement System. Contract would need to be amended to include Directors. 

January 16, 1990Discussion on tentative design for the District office and agreement with the architect. 

May 15, 2000 Discussion on City of Westminster infrastructure revitalization plan.  The City’s proposed plan would freeze the tax rate with a base year of 1999. '

August 2, 2011 The District approves an Emergency Action Plan for the District with an Emergency Support Function.