Water compliance monitoring

Water Quality. AH commercial oil shale operations require substantial quantities of water. AH product water is treated for use and operations are permitted as zero-discharge facHities. In the Unocal operation, no accidental releases of surface water have occurred during the last four years of sustained operations from 1986 to 1990. The Unocal Parachute Creek Project compliance monitoring program of ground water, surface water, and process water streams have indicated no adverse water quaHty impacts and no violations of the Colorado Department of Health standards (62). 

B90103 NPDES Compliance Monitoring Inspector Training Laboratory Analysis 800R94004 Office of Water Performance Evaluation Study Project Final Report... 

Gates D. 1999b. Practieal suggestions for meeting USEPA compliance monitoring requirements and in-plant operational control of chlorine dioxide in drinking water. Ozone Sei Eng 21 433-445. 

Beginning in 1993, the USEPA initiated compliance monitoring of finished water for atrazine, simazine, and several other chemicals. Surface water supplies were monitored quarterly, and groundwater supplies were monitored once or twice annually. The purpose was to assess annual running mean concentrations of atrazine and simazine for each CWS for compliance with their respective MCLs (Table 29.1). 

There are 41362 community systems in the 32 major-use states. These facilities provide drinking water to 91% (213 million) of the 234 million people in these states (Table 29.2). SDWA quarterly compliance-monitoring data for atrazine and simazine from community systems in the 32 major-use states were obtained from the state regulatory agencies. These primary data represent an 8-year period (January 1993 to December 2000). There are 28280 CWS (68%) with 146683 samples analyzed for atrazine in the PLEX database (Table 29.3) and 27959 community systems (68%) with 137 956 simazine data points (Table 29.4). 

The exposure of populations served by CWS to atrazine and simazine in each of the 32 states was evaluated using SDWA compliance monitoring data collected between January 1993 and December 2000 (Tables 29.3 and 29.4). These data represented the best available information from state SDWA agencies in the 32 states. Drinking water data entered into the PLEX database provided a direct link between the population and the estimated concentration of atrazine and simazine in the drinking water. 

Definitive data are obtained with rigorous analytical methods, such as EPA-approved methods or other standard analytical methods. For the data to be definitive, either analytical or total measurement error must be determined. Definitive data, which are analyte-specific and have a high degree of confidence in analyte identity and concentration, are used for decisions that have consequences for human health and the environment, such as site closure, risk assessment, and compliance monitoring of water effluents and air emissions. Definitive data may be generated at a field (mobile) laboratory or at an off-site (fixed-base) laboratory. 

A list of analytical methods approved for the SDWA compliance monitoring can be found on the EPA s Office of Groundwater and Drinking Water Web page at http //www.epa.gov/ogwdw/methods. 

US Environmental Protection Agency, Guidance on Documentation and Evaluation of Trace Metals Data Collected for Clean Water Act Compliance Monitoring, EPA-821-B-96-004, [US Environmental Protection Agency, 1996e]. 

The primary routes of exposure of humans to barium are consumption of food and water and inhalation of ambient air (ICRP 1974 Reeves 1979). Based on compliance monitoring data from the... 

In response to these concerns, the Office of Pesticides and Toxic Substances, EPA, issued FIFRA Compliance Monitoring Policy No. 12.5 on February 27, 1984 (1 1), which in summary states that in such instances where no diluent is specified on the label, water must be used as the diluent. Clearly, this response was prompted by health and safety concerns for pesticide applicators and farmworkers. 

The Discharge Receptors For compliance monitoring, to guarantee their protection according to EC drinking water and environmental guidelines. 

The European Water Framework Directive (WFD) so far does not consider sediment quality and quantity as a major issue (Forstner and Owens, 2007). Objections against compliance monitoring for sediment, based on Environmental Quality Standards (EQS) for sediment, were caused by analytical limitations and anticipated costs involved in... 

For copper, the rig tests are applied at pumping stations where the water has a high copper solubility. For lead, the rigs are plaeed at the majority of the pumping stations that deliver water to areas with lead pipes. The results from the pipe rig test show a good correlation with metal concentrations at the tap. The Netherlands government has accepted the pipe rig test for compliance monitoring. 

The lonPac AS4A-SC is ideal for compliance monitoring of drinking water and wastewater. Its standard elution profile is illustrated in Figure 3.30. 

---