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  2. List of school districts in Maryland - Wikipedia

    en.wikipedia.org/wiki/List_of_school_districts...

    This is a list of school districts in Maryland. Each of the following parallel the boundary of one of the counties of Maryland , [ 1 ] and all of them are dependent on county and independent city governments.

  3. United States regulation of point source water pollution

    en.wikipedia.org/wiki/United_States_regulation...

    For example, the State of Maryland requires erosion and sediment controls on construction sites of 5,000 sq ft (460 m 2) or more. [36] It is not uncommon for state agencies to revise their requirements and impose them upon counties and cities; daily fines ranging as high as $25,000 can be imposed for failure to modify their local stormwater ...

  4. Contaminants of emerging concern - Wikipedia

    en.wikipedia.org/wiki/Contaminants_of_emerging...

    A Suspect List Exchange [38] (SLE) has been created to allow sharing of the many potential contaminants of emerging concern. The list contains more than 100,000 chemicals. Table 1 is a summary of emerging contaminants currently listed on one EPA website and a review article. Detailed use and health risk of commonly identified CECs are listed in ...

  5. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]

  6. List of most-polluted rivers - Wikipedia

    en.wikipedia.org/wiki/List_of_most-polluted_rivers

    Name Location Dependent population Description Sources of pollution Impact Bharalu River: Assam, India: One of the most polluted rivers in the state of Assam. [19] The biochemical oxygen demand of the river is 52 mg/L in compared to the permissible limit set by the National River Conservation Directorate (NRCD) at 3 mg/L. [20]

  7. Category:Water pollution - Wikipedia

    en.wikipedia.org/wiki/Category:Water_pollution

    Chemical addition wastewater treatment; Chemical waste; Chernobyl groundwater contamination; Citarum River; Coal slurry; Color of water; Combined sewer; Contaminants of emerging concern; Conventional pollutant; Cooling pond; Covering of the Senne; Cruise ship pollution in Europe; Cyanide fishing

  8. List of public schools in Montgomery County, Maryland

    en.wikipedia.org/wiki/List_of_public_schools_in...

    This is a list of public schools in Montgomery County. As of the 2022–2023 school year, the district had 11,763 teachers that served 160,489 students at 207 schools. As of the 2022–2023 school year, the district had 11,763 teachers that served 160,489 students at 207 schools.

  9. Drinking water quality in the United States - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality_in...

    PG&E used this chemical to deter corrosion in their cooling towers. The use of this chemical in cooling towers lead to a wastewater leakage into unlined ponds at their cooling tower sites. This, in turn, turned into groundwater contamination which adversely affected the town of Hinkley. The contamination resulted in a $333 million settlement in ...