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Martinsville Agenda Item Number '~ <br /> Department: Water Resources <br /> Date: 11-09-04 <br /> <br />City Council <br />Agenda Sunmmry <br /> <br />Agenda Item: Presentation of status report regarding water system disinfection byproducts. <br /> <br />Summary: Last November the City received notice from the VDH that, because of higher than <br />normal test results from samples collected in the preceding September, the four-quarter rolling <br />average for haloacetic acids (HAA5) exceeded the standard, and that the City would be required to <br />publish a public notice to all water customers accordingly. Subsequent similar notices were issued <br />this past March and May, with an exceedance for trihalomethane (THHM) being added to the May <br />notice. Results recently received from compliance samples collected this September indicate that the <br />City's four-quarter averages for both THHM and I-IAA5 are currently in compliance, meaning that <br />another public notice will not be required at this time. However, to insure future compliance, this <br />remains a top priority issue and is being actively pursued. <br /> <br />Consultants employed earlier in the year considered various methods and made recommendations to <br />reduce disinfection byproducts (DBP) in the City's water system. More recently, Dr. Yuefeng Xie, <br />noted authority on DBP formation and control from Penn State Univ., visited and made further <br />recommendations. Changes in the process have already been made but results are inconclusive. <br />Construction plans are awaiting final approval from the VDH before further changes are implemented <br />that may provide long-term DBP reduction. <br /> <br />Activities since November of '03 are tabulated in the attached summary. Further details will be <br />provided during the Council Work Session. <br /> <br />Recommended Council Action: No action required. <br /> <br />ATTACHMENTS: Role Call Aye Nay <br /> <br /> Memo Council Minutes Mayor & Vice Mayor <br /> X Staff Report Existing Ordinance M S__ Cobbe <br />__ Correspondence Proposed Ordinance M__ S Reynolds <br />__ Bid Tabulation Attomey's Report <br />__ P/C Recommendation Petition Council Members <br /> P/C Minutes Contract M S__ Roop <br /> Application Budget Amendment M S__ Ferrill <br /> Citizen Legal Notice M S__ Clark <br /> Consultant Report Other <br /> <br /> <br />