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HomeMy WebLinkAboutNC0061719_Performance Annual Report_20071231Performance Annua I. General Information Facility/System Name: Woodlake DENR-FRO MAR 1 1 2008 DWQ MAR - 3 2008 DENR - WATER QUALITY Responsible Entity: A• ua North Carolina d �; :z t�-1; •1 I Person in Charge/Contact: Tom Roberts D Applicable Permit (s): NC0061719 W CS00123 Description of Collection System or Treatment Process: This 0.50 m d wastewater treatment facilit consists of a bar screen an Aeromod Com lete Mix s stem tube settlin clarifier slud a di ester chlorination and ost aeration. II. Performance Text Summary of System Performance for Calendar Year 2007 This plant performed enerally well during 2007. List (by month) any violations of permit conditions or other environmental regulations. Monthly lists should include discussion of any environmental impacts and corrective measures taken to address violations. January Compliant February TS S daily and monthly limit of 45 and 30 mg/L. Daily exceeded on 3 occasions- 32.0, 90.0 55.0 mg/L; Monthly TSS was exceeded with a single measurement of 39.9 mg/L. Operator had to add seed sludge to the plant; solid fell out. November . December March Compliant April Compliant May Compliant June Compliant July Compliant. August Compliant September Compliant October The daily Fecal Coliform maximum limit of 400 colonies per 100 ml was exceeded with a single result of > 13,000 colonies per 100 ml. Reason unknown. On October 26,2007, approximately 80,000 gallons of sewage was discharged over the plant due to a hydraulic overload brought about by a 1-1/2-inch rainfall. The plant upset did not hit surface water. The daily Fecal Coliform maximum limit of 400 colonies per 100 ml was exceeded with a single result of >700 colonies per 100 ml. Fecal was out to due to chlorine malflunction. Chlorine pump has been replaced. TSS daily and monthlylimit of 45 and 30 mg/L. Daily exceeded on 3 occasions- 32.0, 90.0 55.0 mg/L; Monthly TSS was exceeded with a single measurement of 34.8 mg/L. Daily TSS Limit of 45 mg/L was exceeded by a single measurement of 51 mg/L. TSS was out due to solids in chlorine contact chamber. A vacuum truck removed the solids. Aqua replaced the sump pump in aeration chamber. TSS daily and monthly limit of 45 and 30 mg/L. Daily exceeded on 2 occasions- 70.0 and 46.0 mg/L; Monthly TSS was exceeded with a single measurement of 47.25 mg/L. TSS was exceeded due to improper of solids while backwashing of filters. Solids were removed from chlorine contact chamber. II. Notification Our customers received a message on their bills regarding the availabilityof this report upon request and a notebook containing these reports is located in our Customer. Service office. III. Certification I certify under penalty of law that this report is complete and accurate to the best of my knowledge. I further certify that this report has been made available to .the users or customers of the named system and that those users have been notified of its availability. k-TKoirof 2/29/08 Responsible Person Date Title: Regional Compliance Manager Entity: Aqua North Carolina dba Heater Utilities, Inc.