(SW 15% System (whichever has a (SW (SW (SW System System One year has has a a is potential potential potential greater) of the disinfection grab violation violation sample for for violation profile not for measurement. If failing failing failing to to to completed. the monitor monitor readings are monitor chlorite outside of this Does at bromate chlorine the point at dioxide the of This public the at point range, entry the of according point entry of water system according calibration to the Does Does to entry the according required was required to the the to required frequency procedures the required are Does conduct one required. frequency frequency the (system using year of (system (system chlorine using using disinfection ozone) chlorine dioxide) profiling as part (141.132b3). have a dioxide) (141.132b2). of the Long (141.132c2). Term 1 at Enhanced point at Surface Water point of on Treatment Rule. at of entry site The disinfection point entry? that daily profile consists of and of inactivation entry? a calculations for year in Giardia and the of viruses calculated once log per week over a year’s time. During this sanitary survey, a complete one year profile was not available for pop.) review. The or a system must year collect of information on daily the plant’s flow log rate, contact tank volume, pH, temperature, and chlorine residual on at least a weekly pop)? basis to calculate Giardia and virus inactivation levels for one year. This information
15% (whichever is greater) of the grab sample measurement. If the readings are outside of this range, calibration procedures are required. (SW Does the at point of entry? System has a potential violation for failing to monitor bromate at the point of entry according to the required frequency (system using ozone) (141.132b3). (SW Does the at point of entry? System has a potential violation for failing to monitor chlorine dioxide at the point of entry according to the required frequency (system using chlorine dioxide) (141.132c2). (SW Does the at point of entry daily and in the System has a potential violation for failing to monitor chlorite at the point of entry according to the required frequency (system using chlorine dioxide) (141.132b2). (SW Does the have a on site that a year of log pop.) or a year of daily log pop)? One year disinfection profile not completed. This public water system was required to conduct one year of disinfection profiling as part of the Long Term 1 Enhanced Surface Water Treatment Rule. The disinfection profile consists of inactivation calculations for Giardia and viruses calculated once per week over a year’s time. During this sanitary survey, a complete one year profile was not available for review. The system must collect information on the plant’s flow rate, contact tank volume, pH, temperature, and chlorine residual on at least a weekly basis to calculate Giardia and virus inactivation levels for one year. This information
ss_tribal_form.docx