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HomeMy WebLinkAboutEffluent Quality Jeffersonville Wastewater Treatment Facility Monthly Operations Report 1.0EFFLUENT QUALITY During June, effluent quality was within NPDES permit limits for CBOD, TSS and NH-3. Table 1.1 summarizes the effluent quality data. Attachment A contains Time Series Plots of Carbonaceous Biochemical Oxygen Demand (CBOD) and Total Suspended Solids (TSS) values. Attachment B contains Time Series Plots of Aeration Mixed Liquor Suspended Solids (MLSS) and Sludge Volume Index (SVI). Table 1.1 Monthly Average Effluent Quality Permit Limit Actual Parameters Carbonaceous Biochemical 15 mg/l 6.6 mg/l Oxygen Demand (CBOD) Total Suspended Solids 18 mg/l 11.3 mg/l (TSS) Fecal Coliform MPN 235 colonies/100ml 59 colonies/100ml Chlorine Residual 0.01 mg/l 0.01 mg/l Ammonia 3.0 mg/l .1 mg/l Average Dry Weather 5.2 design 5.08 MGD Flow Table 1.2 Wet Weather vs. Dry Weather Number of Wet Days * 17 Average Flow of Wet Days 6.34 MGD Number of Dry Days 13 Average Flow of Dry Days 5.08 MGD *Wet Day = Rain (>0.1 in) and three days after 2.0DESIGN LOADINGS LIMITS The Flows and Loadings report for June 1994 through June 2003 can be found in Attachment C. 3.0FACILITY OPERATIONS Attachment D contains a list of septic haulers that discharged at the facility during the month of June. 1 Jeffersonville Wastewater Treatment Facility Monthly Operations Report During June, the treatment processes performed very well. All sample parameters were well within their limits. Settleability of mixed liquor solids has fallen into normal operation ranges. Ran RAS pump rates for PEH Engineering. 3.1PRETREATMENT Pretreatment activities for the month included the following: ? Performed yearly composite sampling and analysis on Pfau’s and Altec. ? Made yearly inspection of Altec. ? Met with CSO industries to discuss their reporting procedures. 4.0 SEWER MAINTENANCE CALLS Table 4.1 represents all sewer maintenance calls for the month. Table 4.1 Monthly Sewer Call Report, Residential Responsibility Footage Date Address Complaint In CSO Cleaned Area? 06/01/04 212 King Circle Backup N 06/08/04 2910 Meadowlark Backup N 06/14/04 3804 Hamburg Pike Backup N 06/15/04 212 Kewanna Backup N 06/16/04 1232 Mosswood Backup N 06/21/04 825 Wall Street Backup Y 06/01/04 412 Cheppewa Backup Y 06/03/04 1819 Park Place E Backup Y 06/07/04 1409 Grubbs Ave Backup N 06/10/04 1804 Park Place E Backup Y 500 06/16/04 1511 Elliott Ave Backup N 06/17/04 704 Ewing Lane Backup N 06/17/04 615 East Chestnut Backup Y 06/22/04 #3 Blanchel Terrace Backup Y 06/25/04 943 Chestnut Backup Y 06/28/04 408 E Park Place Backup Y 06/28/04 1527 Nole Drive Backup N 06/30/04 305 ½ Williams Backup N Table 4.2 Monthly Sewer Call Report, City Responsibility Footage Date Address Complaint In CSO Cleaned Area? 06/28/04 3611 Sawgrass Backup – see 6.0 for details N 370 06/14/04 1544 Ellwanger Backup – blockage in main N 300 2 Jeffersonville Wastewater Treatment Facility Monthly Operations Report 4.1 MAINTENANCE & REPAIR EXPENDITURES Maintenance & Repair expenditures are detailed in Attachment E. 4.2 ELECTRICAL EXPENDITURES Table 4.6 represents the facility electrical expenditures for the month as well as providing a year to date total. Table 4.6 Facility Electrical Expenditures Amount (Over) Time Period Budget Expended Under $16,120.32 June $ 13,360.00 ($2,760.32) Year-To-Date $31,986.53 $26,720.00 ($5,266.53) 5.0 FACILITY SAFETY & TRAINING A safety inspection was conducted on July 2, 2004. The rating was 99%. There were no deficiencies reported. Our plant is still in excellent shape. A copy of the Safety Inspection Report is included as Attachment G. 6.0 SEWER COLLECTION SYSTEM AND PREVENTATIVE MAINTENANCE In the month of June collection crews made 20 sewer calls, 18 being the resident’s problem and 2 being the city’s fault. At 1544 Ellwanger, crews cleaned 300’ and removed the blockage with no damage to resident. At 3611 Sawgrass Blvd. the crew cleaned and vactored 370’to remove blockage with damage to some of Mr. Lt T. Ngo’s basement. As well, 575’ of televising, locating, cleaning and vactoring was conducted by crews at 5 different areas of the city for feeding and/or damaged lines city projects. Line televising of 1,005’ was conducted on 2 different days in the Bonenberger neighborhood for the engineering department. A total of 1,152’ of televising was th conducted to locate 6 taps throughout the city. A gas meter and ladder were taken to 10 Street for J.T.L. crews to get in a manhole for a city project. 17 catchbasin tops were cleaned off throughout the down town area, and five catchbasins were vactored out for debris and/or repair throughout the city. During our street pre-maintenance schedule collections crews completed the trouble spot list with 5,275’ of sewers cleaned in city. Three manholes were cleaned, 2 for build up of solids and 1 for repairs, also 4 wet wells were vactored out due to grease build up Colonial Park, Crums Ln. 2, Louise St, Magnolia St. with the others stations not yet needing cleaned. Collection crews also 3 Jeffersonville Wastewater Treatment Facility Monthly Operations Report cleaned 1,050’ of storm drainage at Hwy 62 at Northaven & Applegate Ln. for drainage crew. Bar screens at 10th St. station were cleaned as needed. 8,664’ of preventative cleaning was conducted by collections crew throughout neighborhoods & the down town area of the city. During our stations pre-maintenance schedule our lift stations floats, switches, pumps, alarm systems, and mechanical and electrical components were inspected, cleaned and exercised for proper operations, and bug spraying & house keeping was also started . Generators were inspected and exercised. C.S.O. gates were exercised and greased, communication alarm diagnostic test were done on 3 stations, and storm ditches in the plant were cleaned with Grade All truck. Grass cutting and weed-eating and spraying was done as needed. Repairs were made at Cedarview on pump #1, a flex element & flex hub was installed between motor and pump. At Crums Ln. 1, pump #1, an overload relay block and a set of 3 overload heaters were installed, at Crums Ln. 2, pump #1 was pulled for removal of debris. At Ewing Ln., the #1 pump was pulled to be rebuilt. New bearings, seals, mechanical seal, balanced impellar and set clearance. Table 6.1 Monthly Collection Analysis Report Year To Project July June Date Feet of Sanitary Sewer 3,475 5,460 8,935 Cleaned Feet of Storm Sewer 6,847 10,124 16,971 Cleaned Catchbasins Cleaned & 66 15 81 Vactored Catchbasin Tops Cleaned 28 17 45 Catchbasins Raised 0 0 0 Feet of Sanitary Sewer 2,313 3,351 5,664 Televised Sewer Tap Inspections 0 0 0 Dye Tests 0 0 0 Manhole Castings 0 0 0 Replaced Air Tests 2 1 3 Manholes Sealed 0 0 0 Service Calls Received Backup/Blockage Odor Other 20 20 0 0 Blockage in Blockage Residential Utility Locates Catchbasin City Main Responsibility 106 0 2 18 4 Jeffersonville Wastewater Treatment Facility Monthly Operations Report ATTACHMENTS A. Time Series Plots – CBOD & TSS B. Time Series Plots – MLSS & SVI C. Flows & Loadings Report D. Septic Haulers Report E. Maintenance & Repair Expenditures F. DMR/MRO G. List of Footage Cleaned 5