(SW operating System has a (SW (SW (SW System System One year has has a a logs. potential potential potential The disinfection violation continuous violation for for violation profile not for analyzer failing failing failing to to to completed. monitor chlorine monitor monitor residual chlorite bromate chlorine at at the This public the reading dioxide point of at must of entry the water system Does be entry within 0.1 point according of entry to was required the Does Does the mg/L according according required or 15% to to to conduct the the (whichever the required required is the Does frequency one year of greater) of the (system frequency frequency using disinfection the (system (system grab using using chlorine profiling as sample ozone) chlorine dioxide) part of the dioxide) (141.132b3). measurement. (141.132b2). have Long 1 If the a (141.132c2). Enhanced readings are at Surface outside of point Water this range, of Treatment at daily follow-up entry Rule. The point calibration at daily on disinfection of point and procedures site profile are required. of that consists of inactivation in a calculations the year for Giardia of and viruses calculated once per log 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 daily on the plant’s log flow rate, contact tank volume, pH, temperature, and chlorine residual on at least a weekly basis to calculate
operating logs. The continuous analyzer chlorine residual reading must be within 0.1 mg/L or 15% (whichever is greater) of the grab sample measurement. If the readings are outside of this range, follow-up calibration procedures are required. (SW Does the at point of System has a potential violation for failing to monitor bromate at the of entry according to the required frequency (system using ozone) (141.132b3). (SW Does the daily at point of 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 One year disinfection profile not completed. This public water system was required to conduct one year of disinfection profiling as part of the Long 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
ss_wyoming_form.docx