National Contaminant Occurrence Database (NCOD)

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NCOD is a repository of drinking water quality data to be made available to EPA decision makers and the public.

National Water Quality Standards Database (NWQSD)

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The National Water Quality Standards Database (WQSDB) provides access to EPA and state water quality standards (WQS) information in text, tables, and maps. This data source was last updated in December 2007 and will no longer be updated.

Information Collection Rule Federal Database

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The Information Collection Rule (ICR) Federal database includes research data from an 18-month study of disinfection byproducts and microbial contaminants.

Information Collection Rule Federal Database

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The Information Collection Rule (ICR) Federal database includes research data from an 18-month study of disinfection byproducts and microbial contaminants.

National Assessment Database

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The National Assessment Database stores and tracks state water quality assessment decisions, Total Maximum Daily Loads (TMDLs) and other watershed plans designed to restore impaired waters.

National Nutrient Database

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The National Nutrient Criteria Database allows users to derive ecoregion- and waterbody-specific numeric nutrient criteria ranges.

Unregulated Contaminant Monitoring Program Data

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EPA uses the Unregulated Contaminant Monitoring (UCM) program to collect data for contaminants suspected to be present in drinking water, but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Every five years EPA reviews the list of contaminants, largely based on the Contaminant Candidate List.

환경부 국립환경과학원 - 전국먹는물공동시설(약수터)표준데이터

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(수집방법) 본 데이터는 물환경측정망 운영계획 및 조류경보제 운영매뉴얼, 환경정책기본법 제22조, 수질및수생태계보전에 관한 법률 제9조, 16조, 22조, 23조, 법 제 16조의 2(방사성물질 등의 유입 여부 조사) 및 시행규칙 제26조의 4에 따라 물환경정보시스템을 통해 자료를 수집함(데이터 한계) 수질 데이터는 물환경측정망 운영계획, 조류경보제 운영매뉴얼 등을 기준으로 각 데이터에 대한 측정주기와 측정항목이 정해져 있음 「먹는물관리법」 등에 따라 지방자치단체에서 먹는 물 공동시설로 지정하여 관리하고 있는 약수터 정보

Safe Drinking Water Information System (SDWIS) Federal Reports Advanced Search Tool

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A database where EPA has compiled data on public drinking water systems and whether they have certain drinking water violations. This data is collected by the states and given to the EPA. This dataset is associated with the following publication: Pennino, M., J. Compton, and S. Leibowitz. Trends in Drinking Water Nitrate Violations Across the United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 13450-13460, (2017).

Safe Drinking Water Information System (SDWIS) Federal Reports Advanced Search Tool

공공데이터포털

A database where EPA has compiled data on public drinking water systems and whether they have certain drinking water violations. This data is collected by the states and given to the EPA. This dataset is associated with the following publication: Pennino, M., J. Compton, and S. Leibowitz. Trends in Drinking Water Nitrate Violations Across the United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 13450-13460, (2017).