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WebBlue Earth County. 706 North Victory Drive, Mankato, MN 56001 1.800.767.7139 or 345.6822 [email protected] CareerForce Center 12 Civic Center Plaza, Mankato, MN 56001 507.344.2622. WebPC-STEL:短时间接触容许浓度 (Pemissible concentration-Short Term Exposure Limit,PC-STEL),指在遵守PC-TWA(时间加权平均容许浓度)条件下,容许短时间(15分钟)接触的浓度。 扩展资料: MAC:最高容许浓度 maximum allowable concentration, 在生活环境中,MAC是指对大气、水体、土壤的介质中有毒物质的限量标准。 接触人群中最敏感的个 … WebFeb 4, 2024 · CENTER TWP. — Construction is currently ongoing on the new Center Township Water Authority (CTWA) Permanent Water Filtration Plant. Construction began in October. The new potable water supply and treatment project, which costs nearly $70 million, is expected to be completed by fall 2024. Once complete, this project ends a 13 … canal boat holidays staffordshire