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CC RESOLUTION 571RESOLUTION NO. 571 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF EL SEGUNDO, CALIFORNIA, ADOPTING SPECIFI- CATIONS NUMBER SP - 1 FOR REINFORCED CONCRETE SEWER PUMP STATION N0, 5 IN SAID CITY. The City Council of the City of El Segundo, Call- fornia, does resolve, declare and determine as follows: SECTION 1. That the following specifications, being and to be known as "Specifications of the City of E1 Segundo, California Number SP - 1" ( "Reinforced Concrete Sewer Pump Station - No. 50) be, and the same are hereby adopted: "SPECIFICATIONS OF THE CITY OF EL SEGUNDO, CALIFORNIA NUMBER SP - 1. (`REINFORCED CONCRETE SEWER PUMP STATION - No.5R) DESCRIPTION OF WORK: The'work shall consist of furnishing all necessary materials, tools, appliances, equipment, labor and transportation for the necessary excavation; construc- tion of a reinforced concrete sub - surface wet well and pumping pit, all to be completed as shown on the plan of two sheets numbered SD- 410420, and described in these specifications. CONNECTING WORE: The piping installation of pumping and electrical equipment are not a part of this contract. CEMENT: All cement used shall be Portland Cement and shall conform to the 'Standard Specifications and Tests for Portland Cement,' (Serial Designation 09-30) of the American Society for Testing Materials. AGGREGATES: Aggregates shall be clean, well- graded and water washed. Sand shall, when dry, pass a one - fourth (1/4) inch screen with not more than thirty per cent (30%) 1- of the bulk passing a 30 -mesh sieve, nor more than six per cent (6 %) passing a 100 -mesh sieve. Pea gravel and crushed rock shall be hard, durable, and of a quality satisfactory to the Engineer. Rock all shall pass a two (2) inch screen and not more than thirty -seven per cent (37 %) shall exceed three - fourths (3/4) of an inch in diameter. 911 aggregates shall be free from clay, loam, mica, organic material, or other impurities. In proportioning the aggregate of the concrete, and in mixing the concrete, particular care and attention must be given to the relative coarseness of each part, and where necessary proportions shall be altered in order that as dense, uniform and workable a mixture as possible may be obtained. The nominal proportion of the aggregate shall be as specified for each portion of the work. WATER: Water will be furnished to the Contractor by the City at the City's expense and at a location required by the Contractor. REINFORCEMENT: The Contractor shall furnish and set all steel required throughout the concrete work, all of which shall be deformed bars of such shapes and sizes as are shown on the detailed drawings furnished by the Engineer. The steel shall be rolled from original billets, of medium grade, and according to the Standard Specifications of Steel Manufacturers for reinforcing steel. The Contractor shall, if required by the Engineer, furnish a test report on one tensile test and one bending test for each size of bar, the bars to be tested to be selected at random from Contractor's stock pile. The tests shall be made by a recognized laboratory subject to the approval of the Engineer. �M Before being imbedded in the concrete, the surface of the steel shall be thoroughly cleaned of all dirt, rust, oil, grease or other matter that may be detrimental to the positive adhesion of the concrete. All steel intersections shall be tied with 16 gauge annealed wire. All steel splices shall be lapped 40 diameters and tied with wire. EXCAVATION: The price bid for the work is to include all necessary excavation and backfilling and the disposal of any excess material, broken concrete or other refuse. The Contractor shall leave the entire area graded to the elevs► tions shown on the plans. Extreme care must be exercised in the necessary exeacation for all footings. CONCRETE: Concrete shall be considered as a homogeneous mixture with or without reinforcement, as specified and shown on the plans, made up of cement, aggregates and water properly mixed in an approved type of batch mixer. The various proportions of this mixture are specified under the section whose heading is MIX. Pre -mixed concrete is preferred but not required. Adjustments in the mix shall be made by the Engineer, on the job, and these will be made to insure a more workable mix. The proportions of cement to aggregate will not be changed in any class of work; only the various proportions of the various sizes of aggregate may be changed. In no case shall there be more than six gallons of water to one sack of cement, or its cubic foot equivalent of 94 pounds. MIX: 1 part cement to 6 parts aggregate Walls Roof s Floor Slabs Soffits 3- 1 part cement to 8 parts aggregate Footings FOOTINGS: The footings may be poured against dirt forms subject to the approval of the engineer. In no case shall the soil on which the footings or tank slabs are to rest, be disturbed. All steel in these footings is to be placed in accordance with the plans and securely wired in place. EXTRA CONCRETE Should extra concrete be required by specific written instructions from the Engineer in the en- largement or deepening of the footings or increasing the depth of the structure over that called for on the plans, the Contractor shall furnish such extra concrete at a unit price as called for in the bid schedule. No extra compensation may be claimed unless written instructions have been re- ceived by the Contractor prior to the pour. FORKS: The Engineer will set grade hubs and will check the elevations of all form work, and no concrete is to be placed until forms have been checked by the Engineer. The walls and roofs of the structures shall be completely formed, and all forms are to be accurately centered, true, rigid and thoroughly braced. They shall be of sufficient strength to carry the entire dead weight of the construction as a liquid without deflection. As the walls of these tanks are not to be plastered, special care shall be taken in lay- ing up the form boards so as to obtain straight and as small joints as possible. These form boards shall be sized to both width and thickness. The walls are to be constructed with forms on-both sides. No concrete will be allowed to be poured against earth banks except in the footings. All forms and shoring shall be kept in place until, in the judgment of the Engineer, the concrete shall have attained sufficient strength 4.. to resist accidental thrust and other loads that may come upon it, and in no case shall their removal be sooner than seven (7) days. All wall forms shall have a removable section for cleaning out and inspection. All wall steel shall be wired and secured to the outside form. Where it is necessary to wire the inside form, those wires may pass to the steel only. In no case shall the forms be tied with wires passing through the concrete wall. PLACING OF CONCRETE WALLS, Before concreting, all forms shall be carefully and thoroughly cleaned of all sawdust, chips and refuse. Immediately previous to the placing of concrete, all forms shall be thoroughly soaked with water. The concrete shall thoroughly fill the forms, must be solid throughout, and in close contact with the steel reinforce- ment. It must be deposited continuously in uniform layers not over 12" in depth. The concrete shall be thoroughly tamped, special care being given to the tamping on both sides of the steel reinforce- ments to insure against stone pockets being formed against the forms and the displacement of the reinforcement. Power vibrators are desirable, but not required. Noticeable voids or stone pockets discovered when the forms are removed shall be immediately filled with mortar mixed in the same propor- tion as the mortar in the concrete. The walls of the wet well must be poured continuously in a single run in order that any horizontal construction joint between the footing and the roof will be avoided. No concrete shall be placed in the wall until the reinforce- ment has been inspected and approved by the Engineer. TANK BOTTOMS: Each tank slab shall be poured in a con- tinuous pour and the Contractor shall so plan the placement of this material that there will be no cold construction joint. The tops of these slabs shall be carefully soreeded to true grade and then shall receive a steel trowel finish. The reinforcing mesh installed in the slabs shall be handled In such a manner during the pouring of the slabs that it is Imbedded as nearly as possible half way between the bottom and top of the slab. SUMPS: The sumps in the tanks shall be poured as integral parts of the floor slabs. No construction or expansion joint in or around these sumps will be permitted. DAMAGE. CURE, ETC.: Work must be protected from any damage resulting from temperature changes, or from the action of the elements at any time, and any damage from these or other causes must be properly and promptly repaired by the Con- tractor at his own expense. All work must be kept wet to the satisfaction of the Engineer for at least seven (7) days after being placed. EXPANSION JOINTS: The expansion joints in the structure shall be between the floor slabs and the walls. Expansion joints shall be made of materials furnished by the Inertol Company, or the Aquatite Company, in the following manner: wood form strips of 20 material, surfaced four sides to a trapezoidal section of height equal to the thickness of the floor slab and bases equal to 1 1/2" and 3/40 respectively are to be placed with roofing paper wrapping as shown on the plans. As concrete is poured it shall be carefully spaded at the forms to insure no rook pockets. Forms are to be removed M as soon as concrete has initial set. Paper used around forms shall be left in joint space to aid in keeping out dirt and foreign matter. The Contractor at his option may suggest an alternate method Of forming these joints, but a width of 3/4" at the bottom and 1 -1/2" at the top must be maintained. When concrete has completely cured, joint space is to be thoroughly cleaned of all foreign matter and painted thor- oughly to at least 3" each side of the joint with primer solution as manufactured by the company whose expansion joint material is to be used. Oakum saturated with primer Is to be then caulked into joint until the joint is at least one -half full. The remaining joint space is then to be filled and rounded to 1/4" above the floor slab with the mastic compound. PIPE CONNECTIONS: Before concreting, the Contractor shall set in the walls pipes furnished by the City all as shown on the plans. The accurate position and location of these pipes shall be maintained during concreting. STRUTURAL TS EEL: All I -beams called for in the plans shall be placed accurately and with positive bearing on bearing plates as specified and shall be wrapped with 2" wire mesh before being encased in concrete. SIDEWALK DOORS: The sidewalk entrance door to the pump pit shall be an approved type of double sidewalk door, water proofed with drain, of a type to finish flush with the sur- face, and as manufactured by the A. J. Bayer Company or equal. MANHOLE FRAMES AND COVERS: Manhold frames and covers shall be round, standard oastiron with an inside diameter opening of two feet (21) as manufactured by the Apex Steel Corpora- 7. tion or equal. Covers shall be marked SEWER. MANHOLE STEPS: In the wet well, standard 3/4" diameter steel manhole steps coated with red -lead, asphaltum or coal tar paint, shall be imbedded in the concrete from the manhole opening to the bottom of the wet well, at each access shaft as shown on the plans. PUMP FOUNDATIONS: Foundations for the pumps as shown on the plans are not a part of this contract. MISCELLANEOUS; The Contractor shall furnish and install certain bolts, connectors and fittings as shown on plans. " SECTION 2. That the City Clerk shall certify to the passage and adoption of this resolution; shall enter the same in the book of resolutions of said City, and shall make a minute of the passage and adoption thereof in the records of the proceedings of the City Council of said City in the minutes of the meeting at which the same is passed and adopted. Passed, approved and adopted this 23rd day of July, A. D., 1941. Mayor of the City of EL Segundo, California. ( SEAL) STATE OF CALIFORNIA ) COUNTY OF LOS ANGELES ) SS CITY OF EL SEGUNDO I, Victor D. McCarthy, City Clerk of the City of El Segundo, California, do hereby certify that the whole number of members of the City Council of the said City is five; that the foregoing resolution, being Resolution No. 571, was passed and adopted by the said City Council, approved and signed by the Mayor of said City and attested by the City Clerk of said City, all at a regular meeting of the said Council held on the 23rd day of July, A. D., 1941, and that the same was passed and adopted by the following vote, to -wit: AYES: Councilmen Gerow, Hesser, Love and Mayor Binder; NOES: Councilmen None; ABSENT: Councilman Selby. (SEAL) U p�, City lerk of he City o El Segundo, California. i4n tam a, _ ti 9..