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HomeMy WebLinkAboutJul 28, 1975:! F CITY 01:' ST. A~dl Ot,iY crr¥ OF Nrw IRIGi~?ON System Gravit, Force Manhol Inventory Sewers ains s S~NITARY SE~ER SYSTEM 58.35 miles .89 miles ].,166 Four L] #l--Go] #2--Arc #3--Si~ #4--Su] M.S.S. 37th A 37th A% 44th A% 37th A% Personr See War New Eq~ 1 Close 2 Home] 2 Elect Rebuilt New Bi( New Mo I. A, B. C. D. ft Stations f Place and Chatham Road 'onne Drive ver Lake livan Lake Meter Stations 'enue and Tyler Street #106 'enue and 5th Street #107 'enue and Main Street #108 ~enue and Marshall Street #109 .er System report (p.20). ~ipment :d circuit TV system ite 4 cycle pumps, 150 and 385 G.P.M. .ric pumps, 25 to 40 G.P.M. , high capacity auxiliary pump, 1,000 G.P.M. -Marine gas and oxygen indicator .eco manhole ventilator STATIONS Lift stations were inspected on a weekly basis. Lubrication and maintenance performed as necessary. Valves were operated. Wet wells were cleaned. 28 E II. A. 29 Water levels were checked and controls adjusted accord- ingly. Pumps were repacked and cleaned and some of the automatic controls were replaced during the year. Weeds and grass were cut and some interior painting was done at all of the lifts. The standby generator at #3 lift station was operated weekly and serviced as required. A portable generator was tested periodically at all of the lift stations. The standby generator at #3 lift station was also con- verted from gascline to natural gas. New signs were installed at lift and pump stations show- ing the County emergency number. The City went to County dispatching during 1975. NITARY SEWER LINE MAINTENANCE Sewer lines were flushed, rodded, repaired, inspected, and chemically treated throughout the system using the vactor, rodding machines, and the new closed circuit TV system. 1. Known trouble spots were televised, and as a result, some excavating and repairs were made. 2o Roots and grease continue to be the major problem in keeping the lines open and clean. A chemical foam generator was budgeted for 1976 to help alleviate this problem, and this process will be'evaluated using closed circuit TV. Sticks and debris entering manhole covers are a reoc- curring problem. We continued to seal as many covers as possible to help prevent this, especially around parks and schools. The Sewer Department has a weekly schedule for checking lines that are known to be problem lines. These lines are also cleaned more frequently than others. M.S.S.D. lines were checked periodically with necessary maintenance and cleaning performed as required. Manholes were cleaned, repaired, adjusted to grade and marked for construction, and covers repaired or replaced as necessary. A total of 45 calls were received regarding plugged pri- vate sewer lines and 39 calls were received where the City's mains were plugged. This is a combined total of 84 calls compared to 83 calls in 1974. The above totals do not include the City's mains and house service lines that surcharged from heavy rains III. 30 F4 K L M D A during 1975. A total of 16.3 miles of the sanitary sewer system was mechanically rodded, and a total of 10 miles of the system was hydraulically rodded. A total of 8,580 feet of sanitary sewer lines was tele- vised. These lines were either known problem areas, or areas where permanent street construction was scheduled. Information was recorded on work sheets. Some lines were filmed for viewing on our video recorder. We still have some of these films on file. Individual photos were taken of special problems found in these lines. Repairs or replacement of some lines was scheduled according to the information gathered when televising. Extensive work was done on 39% Avenue, Cleveland Street to McKinley Street on relaying a good portion of the existing line prior to permanent street paving. The television system was also used to evaluate cleaning procedures and the use of chemicals. Records of all lines and manholes that were plugged, cleaned, repaired and inspected are kept on file. On April 27th and on June 30th the community experienced prolonged heavy rains. Water entering.the sanitary sewer system was extensive causing several trunk sani- tary sewer lines to surcharge and flood several basements throughout town with some of the worst areas being around Jackson Pond. Data is available on the areas involved. S~rrounding communities also experienced the same problems, and in some areas the reported flooding of basements was more extensive and prolonged. Checking the lines that surcharged continued all summer. Meetings were held with some of the residents in these areas who had water in their basements. This resulted in several homes having backwater valves installed since no quarantee could be given that this would not occur again. Meetings were held with the P.C.A. regarding this matter, and they were also notified of the discharge of sanitary waste into the storm system. Sanitary sewer lines were extended at 46th Avenue and Monroe Street and at 39% Avenue and McKinley Street. ~PARTMENT INFORMATION AND C05LMENTS Several sanitary sewer lines were checked for infiltra- tion, some manholes covers were sealed, and the possibil- ity of diverting sewage during an emergency was explored. 31 It was felt that ~less proper landscaping is done around homes and buildings and the use of illegal drain fields discouraged, no appreciable reduction in the amount of water entering the sanitary sewer will occur. Department personnel again attended some schools and seminars on sewer maintenance and construction where safety procedures were also reviewed. A Safety Committee was set up during the year. Assis- tance and direction on safety, health, and personnel re- lated subjects were given during the year by Tim Yantos. Assistance was again given to various comm~nities for using some of the Department's equipment and personnel on a rental basis. Approximately 3,800 feet of sani- tary sewer was televised for other communities due to the flooding of basements after the heavy rains. The Sewer and Water Department's fuel consumption for 1975 was 8,500 gallons. This included gasoline for generators, pumps, rodders, etc. This averages out to be 708 gallons per month. During the year, the Depart- ment vehicles were driven a total of 66,899 miles. Of this total 24,'727 miles were driven using the new meter car. This car is also used by other employees for trans- portation to schools and conferences. The Department's two backhoes use diesel fuel, and their fuel consumption is recorded on the Street Department's record. CITY OF ST. AMT 34 STORM SEWER SYSTEM System Inventory 154,97 1,70 C D II. L.F. Main line storm sewer, not including catch basin leads Catch basins and manholes Control structures Ditches Retention ponds Drain wells ND CONTROL STRUCTURE Were inspected and adjusted for seasonal conditions. A new weir was installed at the LaBelle Pond outfall to help control the water level in the pond. Debris was removed from the structures and channels. Pond levels had to be watched more carefully this year because of the extreme weather conditions (record rains during the first six months and exceptiona~ly dry weather during the last six months). E F G Valves were operated and lubricated. Data is kept during the year as to the pond levels and when the outfall valves are adjusted. The secondary pond and final holding pond located in Fridley are still a problem because of disagreements by the residents in that area on what the pond level should be. The discharge water f~om Highland Lake is restricted in the secondary pond because of a floating mass of bog. Also, the final holding pond reached crit- ical levels after the heavy rains last summer. S"ORM SEWER LINES A Ice and snow were cleared in spring for preparation of runoff. B Shallow storm lines were salted to protect from freezing during winte~and larger trunk lines inspected prior to heavy runoff. Do Ee Fe ne The Sew Departm coopera forgott policy all res City go Thank y 35 A spring cleaning program was again carried out using the vactor to clean basins, storm manholes, and storm lines. Catch basins and manholes were repaired or replaced and also marked for street work and other construction. Last spring all remaining basin grates that would allow a bike tire to enter the openings were secured to prevent acci- dental injury. Basins and manholes were converted or rebuilt to accept more water in some areas. Basins and manholes were adjusted to grade. Some basins and storm lines that were frozen in the spring had to be steamed open or opened using the high pressure vactor. Backwater valves and bypass plates were checked, operated, and lubricated at regular intervals. Broken or misaligned storm sewers were repaired as they were discovered. Some new catch basins and storm sewer lines were installed in conjunction with the street improvement program. The sewer crew installed new storm sewers and manholes in the alley, 44th Avenue to 45th Avenue, Main Street to 2nd Street; 43½ Avenue and Tyler Place going west to the cul- de-sac and also at Jackson Pond in the southwest corner. The open ditch at Huset Park was again dredged to main- tain proper depth for the channel. Even though the first six months of 1975 had record rain- falls, the storm system functioned fine. The amount of debris washed into the streets meant that more time had to be spent cleaning the basin grates, manholes, and storm lines. Records are kept on all repairs made and on lines and basins cleaned, and also some storm lines were televised to locate possible problems. ~r and Water Department appreciates the cooperation of all ~nts and individuals during the year. Daily assistance and tion during several emergencies throughout the year is not ~n. The City's Newsletter and the "Service is Our Business" i]as certainly increased the knowledge and understanding of idents in the co~!unity of the functions and goals of our ~ernment. Person Jerry ]~oback: Doug Bc)lles: Todd Jc I. A, B, C, D. E, F, G, H, J, K, L, M, 36 1975 ANNUAL REPORT WATER METER DEPARTMENT Assistant Plumbing Inspector & Meter Department Head Sewer and Water Department and Part-Time Assistant in Meter Shop ~nes: Meter Reader ~TERS Leaking meters repaired--81. Stopped meters repaired--19. Meters delivered tc plumbers--15. Frozen meters taken out, repaired and reinstalled--5. Meters taken out and put in storage--4. New 5/8 inch meters installed--18. New 3/4 inch meters installed--37. Remote meters installed--16. Repaired broken glass or seals on meters--9. Checked meters--86. Owners read wrong, over or under estimated or people living alone, not much water used, Checked high water bills--30 (cause: leaky toilets). Tested meters for accuracy--3. Showed owners where meters are located and how to read old clock-type meters--7. II. III. IV. 37 II A B C D E F ~SPECTIONS Remodeling--13. Rough or air test--49. Final--28. Gas pressure tests--12. Replace gate valves--1. Storm sewer inspections--5. Manhole and catch basin inspections--7. New or repaired sewer lines--46. New water lines--64. Moved stopboxes back--7. Backwater valves--16. ,. Kill water taps--5. £. Kill sewer-~2. I. Filling in cesspools-~l. APS ON WATER 5~INS .. 1 inch--41. 4ISCELLANEOUS %. Record stopbox measurements--67. 3. Located stopboxes for plumbers, homeowners, gas company, contractors and Engineering Department--320. Locate water lines, sewer lines and sewer "Y's" for plumbers and gas company--36. ,. Checked stopboxes for leaks--5. E. Turned water off at stopboxes--23. F. Turned water on at stopboxes--21. G. Lowered or raised stopboxes and put repair tops on--22. H. Tightened loose connections on meters and tightened shut- off valves or opened valves by meters--il. 38 VI. VII. J4 D~. A, B. C. M~ C] Q~ Checked noisy and leaky pipes, cleaned screens and fau- cets--8. Deliver shut-off notices for nonpayment of water bills--40. Low water pressure tests: static, residual and G.P.M.--12. ~E TESTS Homes connected to City sewer--10. Homes with cesspools--12. Homes using wells--6. iLLIPORE BACTERIA TESTS--127. ILORINE RESIDUAL TESTS--8. ;ARTERLY READING OF ALL WATER METERS IN COLUmbIA HEIGHTS.