1995 First Half of New Treatment Plant Complete Sludge-to-Fertilizer Facility completed, allowing daily sludge discharges into Boston Harbor to end. 1991 Sludge Dumping to Boston Harbor Halted Because the level of wastewater treatment inherited by the MWRA was below federal standards, a federal court order mandated the construction of a new treatment plant.ġ989 First Improvements to Regional Treatment Plantsīoth Deer Island and Nut Island treatment plants halted discharge of more than 10,000 gallons per day of floatable pollution-grease, oil, and plastics-known as scum. The newly created MWRA assumed control of water and sewer systems from the MDC. Moon Island's discharge was put on emergency stand-by status.ġ972 New Federal Environmental Regulationsįederal and state laws mandated primary and secondary treatment for all municipal sewer systems, effectively taking the option for lesser treatment levels away from the states.ġ985 New Regional Water and Sewer Operator Sewage from the northern collection system received treatment for the first time. The Deer Island Primary Wastewater Treatment Plant was completed. Sewage from the southern collection system received treatment for the first time.ġ968 Second Regional Sewage Treatment Plant The Nut Island Primary Wastewater Treatment Plant (demolished in 1998) was completed. In 1940, planners recommended the construction of treatment plants at each of the harbor's three raw sewage discharge locations: Moon Island, Nut Island and Deer Island.ġ952 First Regional Sewage Treatment Plant By 1933, due to worsening pollution, all shellfish taken from the harbor required purification. The Metropolitan District Commission (MDC) assumed control of the MSD system. Sewage pollution forced the closure of several harbor clam beds. It merely collected the wastewater and sent it out into the harbor. The system soon became recognized as one of the best in the country, though it provided no treatment. Expansions to the sewerage system continued through the early 1900s. The Metropolitan Sewerage District (MSD) was formed to build one of the first regional sewerage systems in the country. There sewage was held for release with the outgoing tide. The new system, built between 18, diverted sewage from 18 cities and town to Moon Island in Boston Harbor. A plaque on the boulder where Rocky stands notes that the statue is dedicated to “those whose genius and labors are responsible for converting… a useless rock into a useful, valuable product.State legislators approved the construction of the Boston Main Drainage System. The name “Rocky Taconite” was selected through a local contest (the second-place option was “Petey Pellet”). It was completed in 1962 and assumed his perch in 1964. The friendly mineral statue was built to highlight Silver Bay’s status as the birthplace of taconite production. (The process created a large amount of waste rock, which was discharged into Lake Superior.) Within a few years, that plant was producing millions of tons of taconite pellets.
In 1956, one of the state’s first taconite processing plants opened at Silver Bay. The process resulted in small round pellets of iron ore. After many years of experimenting, Edward Wilson Davis, a researcher from the University of Minnesota, found an effective way to extract iron ore from taconite.
Those reserves were initially passed over in favor of rocks with higher concentrations of iron ore. But when the supply of that ore started to dry up, the industry was in trouble.
Nearly a century earlier, vast reserves of taconite had been discovered on the Mesabi Iron Range. He stands on a seven-foot-tall chunk of taconite, a low-grade iron ore that saved Minnesota’s mining industry in the 1950s. He stands as a mascot to the town and a monument to the history of iron mining in Minnesota. Rocky is made out of two thick iron spheres: one for his body and another for his head. The smiling metal face of Rocky Taconite welcomes visitors to Silver Bay, Minnesota.
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