Maximum contaminant level goal establishing

A total of 83 contaminants are currently required to be regulated under the SDWA of 1986, and 77 substances or classes of substances make up a priority list of contaminants for regulation after the EPA completes standards for the initial list of 83. Although the EPA was required to establish MCLs and maximum contaminant level goals (MCLGs) for 25 of the contaminants by January, 1991, and every 3 years thereafter, the EPA has not kept up with this pace. 

In addition, the Superfund Amendments and Reauthorization Act (SARA) of 1986 set the groundwater standards the same as the drinking water standards for the purpose of necessary cleanup and remediation of an inactive hazardous waste disposal site. The 1986 amendments of the SDWA included additional elements to establish maximum contaminant-level goals (MCLGs) and national primary drinking water standards. The MCLGs must be set at a level at which... 

On June 29, 1989, the Surface Water Treatment Rules (SWTR) and the Coliform Rule were promulgated. According to the SWTR, all public water systems using surface water or groundwater under direct influence of surface water, must disinfect and may be required to filter if certain source water quality requirements and site-specific conditions are not met. The Maximum Contaminant Level Goals (MCLGs) established in the rule are ... 

The US federal primary drinking water standard, maximum contaminant level (MCL), and maximum contaminant level goal (MCLG) for nitrite (measured as nitrogen) are both set at Imgl. The MCL was established to be protective of infants (below 6 months of age). The MCL and MCLC for nitrates are lOmgl. ... 

Establishment of drinking water standards by the EPA involves determination of a maximum contaminant level goal (MCLG), followed by establishment of the... 

Chlorine dioxide is also an oxidizing biocide. Over the last 20 to 30 years, its use has increased significantly for disinfection, color reduction, and taste and odor control. While it minimizes the production of THMs by oxidizing the THM precursors, it does form chlorite and chlorate, both of which are considered disinfection by-products (DBPs). Note that the EPA has established a maximum contaminant level goal (MCLG) for chlorite of 0.8 ppm because 75% of chlorine dioxide that is applied to water forms chlorite, the maximum chlorine dioxide concentration allowable is... 

Safe Drinking Water Act. (1974, 1986, 1996). Specifically applied to water supplied for humans consumption, this act requires the EPA to set maximum levels for contaminants in water delivered to users of public water systems. Two criteria are established for a particular contaminant the maximum containment level goal (MCGL) and the maximum contaminant level (MCL). The former, the MCLG, is the level at which no... 

The EPA goal is to manage pesticides to protect the groundwater resource. This would include the use of maximum contamination levels (MCLs), the enforceable drinking water standards, established under the Safe Drinking Water Act (SDWA), as reference points to determine the unacceptable levels of pesticides in groundwater sources. 

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