|
Year |
Milestone |
|
1880s |
First sanitary sewers |
|
1899 |
First wastewater treatment plant, Located near Yahara River at East Washington Ave, Chemical precipitation plant that didn't work, operated from May 1899 until January 12th 1900. |
| 1901 |
Madison's second treatment plant, built next to first, operated until 1914. Consisted of septic tanks with cinder filters. |
| 1914 photo | Burke Treatment Plant placed in service. Operated by MMSD until 1936, U.S. Gov. 1942-1946 and then MMSD until 1950. |
| 1914 | Main Pumping Station placed in service, Abandoned in 1950 when the new Pump Station No. 1 went into service. |
| 1914 | Greenbush Pumping Station placed in service, Abandoned in 1964 when the new Pump Station No. 2 went into service. |
| 1921 | Wingra Pumping Station was constructed. Abandoned when South West Interceptor was placed in service - 1956 |
|
1928 photo |
The original Nine Springs Treatment Plant is placed in service June 28th – built by the City of Madison. Prior to this all flow went to the Burke Treatment Plant |
|
1930 |
Madison Metropolitan Sewerage District was created by judgment of the circuit court for Dane County entered on the 8th day of February 1930 |
| 1932 | Spring Harbor Pumping Station, now Pumping Station No.5 pumps Middleton’s and Shorewood Hills sewerage to he Nine Spring Plant |
| 1935 photo | First Addition to the Nine Springs Treatment Plant |
|
1949 |
State law passed prohibiting effluent discharge to Madison lakes |
|
1958 photo |
Nine Springs effluent diverted to Badfish Creek |
| 1963 | Pumping Station No. 9 was constructed, pumps McFarland’s and surrounding township's sewerage to Nine Spring Treatment Plant. |
|
1972 |
Creation of the Federal “Clean Water Act” |
|
1974 |
MMSD begins to haul sludge from the sludge storage lagoons to farmers using draglines, dump trucks, and graders (precursor to the Metrogro program) |
|
1980 |
Metrogro biosolids reuse program implemented |
|
1982 |
MMSD office moved from First Street to Nine Springs |
|
1985 |
First Nine Springs computerized process control system placed in service |
|
1986 |
Advanced secondary nitrification process and UV disinfection process placed in service |
|
1990 |
Sludge storage lagoons placed on the Superfund List due to discovery of PCBs |
|
1991 |
Commissioning of gas utilization facilities for co-generation of power and hot water using digester gas |
|
1994 |
Commissioning of Metrogro Storage Tanks, use of sludge storage lagoons discontinued |
| 1996 | Verona Pumping Station is constructed, Verona's Waste Water Treatment Plant is abandoned |
|
1996 |
Biological nutrient removal process for phosphorus removal implemented |
|
1997 |
Computerized Maintenance Management System implemented |
|
1998 |
Badger Mill Creek effluent return implemented |
|
2001 |
Sludge storage lagoon PCB remediation work completed |
|
2002 |
Purchase of Upper Yahara River treatment plant site. |
|
2004 |
Certification of Biosolids Environmental Management System |