02530_Sanitary_Sewage_System_2026.pdf

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STANDARD SPECIFICATION

SECTION 02530

SANITARY SEWAGE SYSTEM

PART 1 GENERAL

1.1 DESCRIPTION

A. Section includes requirements to construct and test sanitary sewage system complete in place.

1.2 REQUIREMENTS FOR MANUFACTURERS AND SUPPLIERS BEFORE DELIVERY

A. Test materials as set forth in applicable referenced specifications and as required herein.

B. Inspect and Test Materials: Follow Section 01450 and as specified herein.

1. Notify Commission 14 days before manufacture of pipe and fittings.

2. Pipe manufacturer:

a. Furnish materials to be tested.

b. Furnish labor to assist Engineer with inspections and tests.

C. Manufacturer or supplier of reinforced concrete pipe (RCP) and structures: Store completed sections off ground using wood blocks, pallets, or other appropriate means.

1. Place with ample space between rows and individual pieces, and enough clearance above and below stored sections to allow full view of walls and joint ends for inspection purposes.

2. Batching plant, casting equipment, and curing facilities: Complete, operating properly and of proper size and range.

3. Show records of continual maintenance and quality control over casting forms and joint forming rings.

D. Readiness for Inspection.

1. Pipe will be ready to inspect when it meets requirements of specified tests.

2. Pipe manufacturer or supplier: Before inspection of pipe for Contractor's order is scheduled, furnish Commission with:

a. The Commission’s contract number and Contractor's name.

b. Pipe diameters, design, and classes.

c. Footage of pipe included in order.

d. Adequate quantities of pipe of required diameters, design, and classes.

E. Requirements for Cold-weather Conditions for Precast Materials Inspection and Testing of Precast Concrete Manholes: See Section 03400.

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F. Plant or Site Inspected Materials Markings: See Section 01450.

1.3 SUBMITTALS

A. Submit following Section 01330.

1. Shop Drawings for RCP, showing strength, details of special fittings, and reinforcing with joint and gasket dimensions.

2. Lay schedules for RCP.

3. Results of source quality control tests performed on RCP and profile PVC pipe at point of manufacture.

4. Method for maintaining sewage flows.

5. Shop drawings, manufacturer's installation recommendations, and operation and maintenance manuals for slide gates and operators.

6. Waiver for concrete pipe, manholes and select precast concrete structures: Submit letter naming manufacturer furnishing items, and who has on file with Commission a certified standard submittal package containing required Commission approved information.

a. Furnish new submittals if standard details or specifications change.

7. Manufacturer’s literature and installation guidelines for profile PVC pipe.

8. Coating manufacturer’s catalog data for coating material used to line inside of ductile iron pipe (DIP), including surface preparation, application procedures, curing, and handling of lined pipe.

B. Submit following Section 01450 before delivery of materials.

1. RCP.

a. Certificates of Compliance or Materials Checklist Furnished by the

Commission:

1) Include Commission Contract Number, job location, and Contractor's name, types, classes, and strengths of pipe, and pipe manufacturer's name.

2) Concrete and masonry materials: See Sections 03300, 03400 and 04200.

b. Certified Test Reports:

1) Aggregates.

2) Cement.

3) Admixtures.

4) Steel reinforcement.

5) Materials: Follow national standards specifying pipe and fittings.

6) Submit reports before start of production and every 30 days after production is ongoing.

2. Heat Shrinkable Sleeve

a. Documentation that Installer has attended at least one day of training at the manufacturer’s facility or, on-site with a manufacturer’s representative.

C. Packing list, invoice, or delivery ticket with every shipment, to contain the Commission contract number, type and class of pipe, length, and other pertinent information.

D. Installation and Repair Recommendations.

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1. Submit manufacturer's recommended installation and repair methods and procedures for pipe and structures for approval before material fabrication.

2. Submit manufacturer’s recommended installation procedures for PVC lined or HDPE lined precast concrete manholes.

3. Submit recommended repair methods and procedures for defects and damage to RCP, structures and lined manholes from manufacturer furnishing product.

a. Repairs: Performed by manufacturer using specifically trained personnel, only in presence of, and after approval of Engineer.

b. Lined manhole repair: Repair personnel certified by lining manufacturer.

4. Waiver: When manufacturer has approved installation and repair methods on file with Commission.

a. Furnish new submittals if specifications change.

5. Submit coating repair methods and procedures to be used at Contract site for lined pipe.

a. Inspection and repairs: Follow coating manufacturer’s recommendations.

E. Concrete Design Mixes: See Sections 03300 and 03400.

F. For more specific handling of different kinds of pipe, see Installation herein.

G. Sewer Service Connection Testing: Closed Circuit Television (CCTV) color CD-ROM and inspection report as specified under Field Testing.

PART 2 PRODUCTS

2.1 MATERIALS

A. Pipe and Fittings.

1. General:

Pipe between structures or between structure and terminus: Same size and material and by same manufacturer.

Each pipe and fitting: Mark with manufacturer's name or trademark, specification designation, pipe class and strength, production shift code, and manufacture date and location.

The Commission will furnish:

a. Manhole frames and covers, including flexible gasket material to be used between frame and manhole wall.

b. Manhole steps except for precast manholes and other precast structures.

c. Cleanout frame and cover for service connection renewals.

d. Lamphole frame and cover for service connection renewals involving 6 inch cleanouts.

e. Four-inch diameter PVC backwater valve for sewer service except riser pipe.

To obtain materials from and return unused materials to the Commission: Follow Section 01110.

2. Gravity Sewer:

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a. PVC Pipe and Fittings (See Section 02510 for AWWA C900 PVC Pipe and Fittings).

1) Standards.

a) PVC pipe and fittings 4-inch and 6-inch diameter: ASTM D3034, wall thickness classification SDR 35 or SDR 26.

b) PVC pipe and fittings 8-inch through 15-inch diameter: ASTM D3034, wall thickness classification SDR 35.

c) PVC pipe and fittings 18-inch through 27-inch diameter: ASTM F679.

d) Closed profile PVC pipe 21-inch through 54-inch diameter: ASTM

F1803.

(1) Manufacturer: Designate and mark pipe manufactured to connect to manholes as "Manhole Pipe".

(2) Exterior seam: Factory smoothed.

e) Open profile PVC pipe18-inch through 30-inch diameter: ASTM F794.

(1) Manufacturer: Furnish suitable smooth manhole adapters, ASTM

F679, SDR 35.

2) Length and color: Length not less than 12 feet. All PVC pipes for sewer main shall be green in color.

3) Joints and fittings: Integral bell gasketed joint is designed so when assembled elastomeric gasket inside bell is compressed radially on pipe spigot it forms watertight joint.

a) Gasket: ASTM F477.

4) Legible markings: ASTM D3034, ASTM F679, ASTM F794, or ASTM F1803 and with date and location of manufacture.

a) Pipe and fittings not marked as specified herein will be rejected.

b) Pipe and fittings manufactured more than 1 year before date of work site inspection will not be accepted.

5) Approved pipe manufacturers:

a) Charlotte Pipe and Foundry Co., 4 inch through 15 inch.

b) CONTECH Engineered Solutions LLC, open profile, 18 inch through

36 inch.

c) Diamond Plastics Corporation, 4 inch through 27 inch; closed profile

30 inch through 48 inch; open profile 18 inch through 48 inch.

d) IPEX, Inc., 4 inch through 27 inch, Ultra Rib open pipe, 18 inch through 24 inch.

e) Prime Conduit Inc., Vylon Pipe, closed profile, 21 inch through 54 inch.

f) National Pipe and Plastics, Inc., 4 inch through 24 inch.

g) Westlake Pipe & Fittings Corporation, 4 inch through 24 inch.

h) JMTM Eagle, 4 inch through 15 inch, open profile, 18 inch through 30 inch.

i) Sanderson Pipe, Fehr and Cuda Sales, Inc., 4 inch through 24 inch

6) Approved fittings manufacturers:

a) GPK Products, Inc.

b) JMTM Eagle.

c) Multifittings, Ltd. /Ipex, Inc.

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d) The Harrington Corporation. (HARCO)

e) Vassallo Industries.

f) Colonial Engineering, Inc.

g) Plastic Trends, Inc.

h) Tigre Ads (Sewer) ‘PVC’ Fittings

b. DIP and fittings: Follow Section 02510 and specified herein.

1) Factory Coated Interior pipe liner.

a) Materials for Lining Pipe.

(1) Prepare pipe surfaces and apply coating following coating manufacturer’s recommendations. Approved applicators:

(a) Baumann Coatings, Inc.

(b) Acme Industrial Coatings.

(c) Bredero Shaw Company.

b) Interior Lining Materials.

(1) Minimum 40.0 mils dry film thickness (DFT) with:

(a) Protecto 401 Ceramic Epoxy.

(b) Corropipe II WasteLiner.

(c) Or equal.

(2) Amine-cured novolac epoxy containing ceramic quartz pigment as supplied by:

(a) Induron Protective Coatings.

(b) Or equal.

(3) Liquid-applied polyurethane as supplied by:

(a) Madison Chemical Industries Inc.

(b) Or equal.

2) Factory Coatings and Liners for DI Fittings:

a) Interior Liner: See Liner specified for DIP pipe above.

b) Exterior Coating: Zinc Coating conforming to AWWA C150 and C151 with the following minimum properties, or approved equal.

(1) Coating system shall conform to ISO 8179

(2) Coated with a layer of arc-sprayed zinc.

(a) 200 g of zinc shall be applied per m2 of pipe surface area.

(3) Asphaltic topcoat shall be applied. The mean dry film thickness shall be greater than or equal to 3 mils. The local allowable minimum thickness is 2 mils.

c) Approved Manufacturers

(1) American Cast Iron Pipe Co.

(2) United States Pipe and Foundry Co.

(3) Tyler Pipe Industries, Inc.

(4) SIGMA Corporation

(5) Star Pipe Products

3) For cathodically protected systems, as indicated in the Contract Drawings, follow 02510 specification for Alternative Externally Coated Pipe and Fittings.

c. RCP: Unless shown otherwise on Drawings, do not use RCP in 30 inch diameter and smaller sizes.

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1) Standards: ASTM C76, Class following Drawings.

a) Concrete used in production of pipe and fittings: 28-day minimum compressive strength following ASTM C76.

b) Cement: ASTM C150 with no additives and blends added without prior approval of Engineer. Other exceptions are as modified herein.

c) Pipe:

(1) Accepted, if each length of pipe passes hydrostatic test required herein before delivery to Contract site.

(2) Not accepted from manufacturer's stock, except Engineer may accept from manufacturer's stock a maximum of 10 pieces of pipe, meeting requirements herein.

d) Shorts, Fittings, and Beveled Pipe: Hydrostatic tests not required.

e) Pipe and Fitting: Free of coatings.

2) Ends of pipe and fittings: Circumferential reinforcing steel equivalent in area to single reinforcing cage used in barrel of pipe or fittings.

a) Extend longitudinal steel to hold circumferential steel in place to within

1 inch of face of ends.

3) Lengths and types:

a) Length: Minimum 8-foot lengths, with rubber gasket joints meeting requirements of ASTM C443. Lifting holes will not be permitted.

b) Bevel pipe: Provide when specified or when required to open pipe joint more than permitted herein.

c) Non-float concrete pipe: Meet requirements specified above and following:

(1) Outside diameter: Increased so pipe contains sufficient concrete to resist floatation with pipe empty and uncovered.

d) Increased thickness: Homogeneous or heterogeneous, of same concrete strength as pipe, and reinforced to prevent shrinkage and temperature cracks.

e) Joints: Interchangeable with those of adjoining sewer pipe.

4) Approved manufacturers:

a) Concrete Pipe and Precast.

b) Rinker Materials, Hydro Conduit Division.

3. Forcemains.

a. DIP and Fittings: Follow Section 02510 and specified herein.

1) Unless otherwise noted on Drawings, factory coat interior of DIP force main 100' from transition manhole. For coating requirements see DIP under Gravity Sewer specified herein.

b. PVC AWWA C900: See Section 02510 for 12" and smaller pipe.

B. Connection Appurtenances.

1. Connections 8” and larger will be made by way of Manhole built over existing sewer following Standard Details.

2. Saddles: For connecting sewer service connections to existing main line.

a. PVC Main: Follow manufacturer’s recommendations.

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b. Approved saddle manufacturers for connecting to asbestos cement, vitrified clay, concrete, cast iron, or ductile iron sewer pipe with outside diameter:

1) The General Engineering Company, SEALTITE Type "S" saddle with

FERNCO adapter, following GENECO Drawing R-3450-D,

2) Romac Industries, Inc., "CB" style saddles.

3) FERNCO, EZ Tap

4) Or equal.

c. Approved wye manufacturer for making wye connection to asbestos cement, vitrified clay, concrete, cast iron, or ductile iron sewer pipe with outside diameter 36-inch and smaller:

1) The General Engineering Company, SEALTITE Type "E" saddle with

FERNCO adapter following GENECO Drawing R-3413-D1, View 1.

2) Or equal.

3. Thimbles: Use where conditions preclude use of a tee or saddle when connecting to existing sewer pipe.

a. Approved manufacturers:

1) Inserta Tee.

2) Or equal.

4. Coupling/Adapters: For connections between different types of pipes and point repairs:

a. Approved manufacturers:

1) FERNCO Joint Sealer Co. with shear ring.

2) DFW by NDS non-shear.

3) Mission Rubber Company with shear ring

4) Indiana Seal with shear ring

5) Or equal.

5. Flexible Gasket Connectors:

a. For connecting pipes to sewer manholes, see Section 03400.

b. Transition Gasket to connect DIP to PVC Pipe.

1) Approved manufacturers:

a) Harrington Corporation (HARCO)

b) Romac Industries.

c) Or equal.

6. Stoppers for non-pressure pipe.

a. Open ends of pipe, branches and connections: Close with pre-molded gasket joint stopper meeting requirements for pipe used.

b. Watertight mechanical plug for placement on interior of pipe.

7. Connections to Forcemains.

a. Flexible gasket connectors for connecting forcemain to precast manholes: See

Section 03400.

b. Connections to new forcemains constructed under same contract: Use fittings indicated on Drawings.

c. 2-inch diameter and smaller connections: Use tapped service tee fittings.

d. Connections to existing forcemain: Sleeve in appropriate fitting or use appropriate saddles or sleeves as specified herein.

e. Saddles with clamps: See Section 02510.

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f. Tapping sleeves: Used for 3-inch diameter and larger connections to existing forcemain.

1) Full sleeve mechanical joint type capable of containing pressure within full volume of sleeve.

2) Rated for minimum 150 psi water operating pressure.

3) Capable of withstanding rated operating pressure without leakage past side and end gaskets and junction of the two.

4) Castings: Clean and sound without defects that will impair their service.

5) No plugging or welding of defects permitted.

6) Flanged outlet: ANSI B 16.1, Class 125.

7) Provided with tap and test plug.

8) Other tapping sleeve requirements: See Section 02510.

g. Tapping valves: Use with tapping sleeves having flanged inlets compatible with outlet flange of tapping sleeve.

1) Mechanical joint outlet.

2) Other tapping valve requirements: See specifications for gate valves in

Section 02510.

C. Miscellaneous Materials.

1. Cast-in-Place Concrete: See Section 03300.

2. Pipe Embedment Material: For pipe and structures see Section 02315.

3. Precast Concrete Manholes and Service Connection Cleanout Boxes: See Section

03400.

4. Castings, Miscellaneous Metal Connectors, and Appurtenances: See Section 05500 and follow Standard Details and Drawings.

5. Lamphole Style Cast Iron Cover Assembly:

a. Approved manufacturers for 4 inch Cleanout:

1) Bingham & Taylor Corporation; Approved Foundry: Culpeper Virginia.

a) Frame and Cover SN 4881-9006-7 Model No. I5TL54SSWSSC.

2) Capital Foundry, Inc.; Approved Foundry: UMA Iron and Steel, Calcutta, India.

3) Chesapeake Foundries, Inc.; Approved Foundry: Carnation Industries, Ltd.

Calcutta, India. (Imported by Creswell Trading Co.)

a) Cover: Part no. CLTS-1.

b) Frame: Part no. CLF-2, per approved drawings.

4) Or equal.

b. Approved manufacturers for 6 inch Cleanout:

1) Bingham & Taylor Corporation; Approved Foundry: UMA Iron and Steel Calcutta, India

a) Cover: Model No. INDMLAMPLID

b) Frame: Model No. INDMLAMPBOX

2) Capital Foundry, Inc.; Approved Foundry: UMA Iron and Steel, Calcutta, India.

3) Chesapeake Foundries, Inc.; Approved Foundry: Cresmac Foundry, Kolkata, India.

4) East Jordan Iron Works, Inc., Catalog No. 1565.

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5) Or equal.

6. Masonry Work: See Section 04200.

7. Mortar Bonding Admixture: Addition to mortar for installation of precast concrete grade ring adjustment.

a. Approved manufacturers and admixtures:

1) Euclid Chemical Co., Flex-con.

2) Parchem Construction Products, Nitobond Acrylic.

3) Thoro System Products, Inc., Acryl-60.

8. Curing Compound: ASTM C 309, Type 2, Class B white pigmented resin based for use with parging and precast grade rings.

9. Manhole Steps.

a. Concrete structures: ASTM C 478.

1) Minimum 1/2 inch diameter steel reinforcing bar: ASTM A615.

2) Grade 60 or deformed wire: ASTM A496.

3) Encase in polypropylene: ASTM D4101.

b. Masonry structures:

1) Meet above requirements for concrete structures.

2) Manufacturer's standard specially designed for brick or block walls.

10. Geotextile, Type A: See Section 02070.

11. Asphalt-Based Waterproof Coating on Brick Transition on Manholes:

a. Approved manufacturers and coatings:

1) Lasting Paints, Stix-tite Roof and Foundation Coating MA-241 or

FMA-241.

2) Seaboard Asphalt Products Company (153), Clippership heavy duty fibrated roof coating LN-13S.

3) Or equal.

12. Fast Setting Repair Mortar: See Section 03300.

13. Flexible Gasket between Manhole and Manhole Frame: Extruded rope type B, following AASHTO M198 butyl based, 3/4-inch diameter minimum.

a. Approved manufacturers and models:

1) Hamilton Kent Manufacturing Co., Kent Seal II.

2) ADCO Products, Flex-lok.

3) Press-Seal Gasket Corporation, E-Z Stick.

4) Concrete Sealants, Inc., CS-302.

14. Manhole Frames and Covers.

a. Drilling and tapping of bolt holes: Done in manner so frames and covers of any manufacturer are interchangeable with those of another manufacturer.

b. Frames and covers: Do not paint or coat.

c. Castings:

1) From iron melted by any process and following AASHTO M306 and ASTM A48, Class 35 minimum.

2) Cleaned by sandblasting or other approved process.

3) Approved Manufacturers:

a) East Jordan Iron Works (P.O. Box 439 301 Spring Street East Jordan, MI).

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b) Neenah Foundry (Neenah frame and platen lid bolted, watertight manhole, Drawing No. NF-0785 015C. P.O. Box 729 Neenah, WI

(WSSC P&M 10.7)).

c) Capital Foundry (22 inch, 30 inch, and 36 inch; Approved Plant: NIF Iron and Steel, Calcutta, India).

d) Chesapeake Foundry Inc. (22 inch only; Approved Plant: Cresmac Foundry, Kolkata, India).

e) US Foundry and Manufacturing Corp. 8351 NW 93rd Street Medley, FL.

d. Composites:

1) From fiber reinforced polymer following AASHTO M306.

2) Composite manhole covers shall meet the AASHTO H20 or H25 load requirements.

3) Frame shall be set with four (4) quarter turn locks and water resistant secondary o-ring gaskets.

4) All lock components shall be manufactured using a 300 grade stainless steel.

5) For use only in Environmentally Sensitive Areas.

6) Approved Manufacturers:

a) East Jordon Group Inc. for 24 inch, 30 inch and 36 -inch; Approved Plant: P.O. Box 439 301 Spring Street East Jordan, MI.

b) Trumbull for 24 inch and 30-inch; Approved Plant: 1040 N. Meridian Rd. P.O. Box 1556, Youngstown OH.

15. Adjusting Rings.

a. HDPE Grade Ring.

1) Approved manufacturer: Ladtech, Inc., 27 inch and 32 inch diameter rings (for use with 22 inch and 30 inch manhole frames and covers ONLY).

a) Flat HDPE Adjustment Rings.

(1) 22 inch frame and cover: Height increments of 1.25, 1.5, 2.0 and 4-inch.

(2) 30 inch frame and cover: Height increments of 2.0 and 3.0 inch.

b) Sloped HDPE Adjustment Rings.

(1) 22 inch frame and cover: Tapered height adjustment of .75/1.5-inch.

(2) 30 inch frame and cover: Tapered height adjustment of 1.25/2.25-inch.

b. Rubber Composite Grade Ring Transition.

1) Approved manufacturer: East Jordan Iron Works (EJIW) Infra-Riser –

Appropriate diameter for use with 22 inch and 30 inch manhole frames and covers ONLY.

a) Flat Rubber Composite Adjustment Rings.

(1) Height increments of 0.5, 1.0, 1.5, 2.0, 2.5 and 3-inch.

b) Sloped Rubber Adjustment Rings.

(1) Tapered height increments of 0.5/1.0, 1.0/1.5, 1.5/2.0, 2.0/2.5 and 2.5/3-inch.

16. Mastic and Mortar for Filling Pipe Joints.

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a. Mastic: Elastic water resistant formulation of plastic bituminous materials and inert fillers.

1) When applied to vertical metal surface and heated to 120 degrees F jointing mastic will neither slump nor lose plasticity.

2) When applied directly from container without further fixing jointing mastic can be applied in even, adherent coat within temperature range of 20 to 100 degrees F.

3) Capital Foundry (22 inch, 30 inch, and 36 inch, Approved Plant: NIF Iron and Steel, Calcutta, India).

4) Chesapeake Foundry Inc. (22 inch only; Approved Plant: Cresmac Foundry, Kolkata, India).

b. Mortar: One part Type II cement and 3 parts of mortar sand following ASTM C144.

17. Slide Gates.

a. Aluminum plate slide gates:

1) Structurally reinforced members to limit deflection of slide under full head conditions to less than 1/260 of gate span.

2) Self-contained, rising stem gates with guides designed to mount on face of concrete.

3) Resilient seal mounted on lower edge or securely attached to frame along invert.

a) Flush bottom closure with effective seal on structural angle or channel.

4) Aluminum guides with resilient bearing strip inserts on surfaces in contact with gate.

5) Stainless steel stems and fasteners.

6) Approved manufacturer:

a) Rodney Hunt Company, Series 761.

b) Or equal.

b. Crank-operated floor stand operators:

1) Weatherproof housing with solid bronze operating nut.

2) Equipped with roller bearings and mechanical seals around operating nut and pinion shaft.

3) Maximum crank effort required to operate gate: Not to exceed 40 pounds.

18. Mandrel.

a. All metal parts of such stiffness that mandrel will not deform during test.

b. Seven equally spaced circumferential runners or fins.

c. Minimum length of runners in contact with pipe not less than nominal diameter of pipe.

d. Inside pipe and outside mandrel diameters as follows:

Pipe Size In Inches Mandrel Outside Diameter In Inches

6 5.45 8 7.28 10 9.08 12 10.79 15 13.20

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e. Approved manufacturers:

1) HURCO Technologies.

2) Cherne.

3) Or equal.

19. Tracer Wire PVC AWWA C900: See Section 02510.

20. Drop Bowl for Inside Drop Connections.

a. Marine grade fiberglass finished in bright white gel coat.

b. Stainless steel adjustable clamping brackets.

c. Adequate size for incoming pipe diameter.

d. Approved manufacturer:

1) RELINER by Duran Inc.

2) Or Equal.

21. External Heat Shrinkable Sleeve

a. Material: Irradiated and cross-linked polyethylene impermeable backing, coated with protective heat-activated adhesive. Available in bulk rolls either 12-inch or 18-inch in width.

1) Bonds to primed concrete, metal, and fiberglass surfaces.

2) Compatible with concrete, steel, iron, and fiberglass.

3) Separate closure seal to secure sleeve in place during installation and seal overlap area. Each closure seal shall correspond in length to the respective bulk widths as noted above.

b. Functional Performance of Heat-Shrinkable Sleeves:

1) Peel Strength, ASTM D 1000: 8.6 psi (15 N/cm).

2) Lap Shear, ASTM D 1002: 1.5 psi (1.0 N/cm2).

3) Water Absorption, ASTM D 570: 0.05 % maximum.

4) Low Temperature Flexibility, ASTM D 2671: -40 °F (-40 °C).

c. Physical Properties of Heat-Shrinkable Sleeves:

1) Thickness, Nominal, “As Applied”: 125 mils (3.13 mm).

2) Fully Recovered (“Unrestrained”) Thickness: 141 mils (3.53 mm).

3) Stretch Ratio: 70%.

d. Sleeve Adhesive:

1) Softening Point, ASTM E 28: 212° F (100° C).

e. Sleeve Backing:

1) Tensile Strength, ASTM D 638: 2900 psi (20 MPa).

2) Elongation, ASTM D 638: 600%

3) Hardness, ASTM D 2240, Shore D: 46.

4) Abrasion Resistance, ASTM D 1044: 35 mg.

f. Primer:

1) Primes steel, concrete, and fiberglass surfaces for installation of sleeve.

2) Compatible with common substrates and sleeve adhesive.

g. Approved Manufacturers

1) WrapidSeal as Manufactured by CCI Pipelines, Breaux Bridge, LA

2) Or Equal

2.2 SOURCE QUALITY CONTROL

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A. General.

1. Notify Engineer at least 10 working days before performance of tests required herein.

2. Manufacturers or Suppliers: Responsible for facilities, equipment, and competent personnel for conducting load bearing, hydrostatic, and other tests required in applicable reference specifications.

a. Set up instruments, gages, and other testing and measuring equipment to evaluate quality of proper range, type, and accuracy to verify conformance with specification requirements.

b. Assure that equipment is calibrated and certified at annual intervals.

1) Calibrate against measurement standards with known relationship to national standards.

2) Calibrate and certify gages on equipment to which they belong and keep them on that piece of equipment following certification.

3) Do not use instruments, gages, testing, and measuring equipment found to be out of calibration or adjustment until applicable requirements have been met.

4) Hire agency regularly engaged in this type of activity to perform calibration.

B. PVC Pipe.

1. Test Standards for Gravity Pipe:

a. PVC pipe 4 inch through 15 inch diameter: ASTM D3034.

b. PVC pipe 18 inch through 27 inch diameter: ASTM F679.

c. Elastomeric gaskets: ASTM D3212.

d. Closed profile PVC pipe: ASTM F1803.

e. Open profile PVC pipe: ASTM F794.

2. Test Standards for Pressure Pipe: AWWA C900.

3. Engineer may request that pipe manufacturer witness source quality control testing of

PVC pipe and fittings specified herein.

C. RCP.

1. Load-bearing and Hydrostatic Tests:

a. Perform in presence of Engineer.

b. Complete before pipe delivery to site.

2. Test Specimens: As selected at random by Engineer from pipe produced for Contract.

a. Quantity:

1) Load-bearing test: At least half of 1 percent of number of pipes to be furnished for each size and class for each contract, but in no case less than 1 piece for each size and class.

2) Hydrostatic test: 100 percent of pipe.

b. Testing Sequence: Load-bearing test may be conducted with hydrostatic testing, using pieces of pipe from same class and lot as hydrostatic test specimens.

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1) If a given contract has 2 or more classes of pipe of same size and joint design, hydrostatic testing may be combined by jointing 2 pieces of pipe with different classes.

2) If pipe furnished is from previously tested lot, required testing will be waived provided pipe at time of offering is less than 1 year old.

3) Test pipe more than one year old unless lot offered was tested within 6 months of date of offering.

4) Definition of lot as used herein: Assemblage of 100 or fewer concrete pipe sections, all being of like size, design, material, and strength and designation, manufactured by same process and without interruption, during a time period not to exceed 10 consecutive working days using same types of materials.

3. Load-bearing Test:

a. RCP, 72 inch and smaller diameter:

1) Acceptance will be based on:

a) Plant load-bearing tests to 0.01 inch crack and to specified ultimate load.

b) Material tests and inspection of manufactured pipe for visual defects and imperfections.

c) Stipulations set forth in appropriate ASTM specification and modified herein.

2) Retest of failed specimens:

a) For each specimen failing strength tests, Engineer will randomly select 2 additional specimens from same lot as failed specimen, for each specimen that failed, and will accept pipe only when all of retest specimens meet strength requirements.

b) One pipe from previous lot will be subjected to load test, and procedure for retest will be as stated above, including test of previous lot.

b. RCP, 78 inch and larger diameter:

1) Acceptance: Based on compressive strength and absorption tests and inspection of finished pipe, including amount and placement of reinforcing steel.

c. Load-bearing test specimens will not be accepted for incorporation into Work.

4. Hydrostatic Test: ASTM C497.

a. Basis of acceptance of pipes for gravity sewers: Withstand minimum internal hydrostatic pressure of 13 psi for 10 minutes with no leakage before delivery to Contract site.

b. Testing conditions:

1) Soak pipes, under reduced pressure, for maximum of 24 hours before testing.

2) Moisture appearing as patches or beads not resulting in runs on pipe walls is not considered leakage, if pipe walls are dry upon retesting at prescribed test pressure after elapse of not more than 24 hours.

3) Test pressure may be maintained between initial test and retest at option of manufacturer.

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4) At manufacturer's option, standpipe as specified below may be used in lieu of water-calibrated pressure gage.

a) Standpipe:

(1) Calibrated in 1/2 foot increments with permanent markings.

(2) At a height and with adjusted overflow line developed for specified pressure.

(3) Ensure continuous visible stream of water from overflow line during test.

c. Fittings: Test not required.

PART 3 EXECUTION

3.1 PUBLIC NOTIFICATION

A. See Section 01110.

3.2 INSTALLATION OF SANITARY SEWER

A. Inspect and Test Materials: Follow Section 01450 and as specified herein.

B. Handling of Pipe and Fittings after Delivery

1. Unloading and handling.

a. PVC pipe and fittings: Use proper equipment, avoiding severe impact blows, especially during cold weather.

b. PVC pressure pipe and fittings: AWWA C605.

c. Ductile and gray iron pipe, DIP fittings, and appurtenances: Follow Section

02510.

d. RCP, manholes, and appurtenances: Use crane or backhoe of proper capacity equipped with appropriate slings to protect material from damage.

e. Storage: Store in reasonably level area, well drained, away from brush, and in area accessible for inspection.

1) Store individual pieces or bundles with safe walking space and clearance between to allow full view for inspection purposes.

2) Do not place excavated or other materials over or against stored pipe.

3) Store on flat surface so barrel of pipe is evenly supported and not piled more than 4 feet high.

4) Do not stack bundles or containers.

5) If left bundled, place bundles on flat smooth surface with boards in contact with ground.

6) Gasket: Store in cool place out of direct sun.

2. Inspection and Repair: Pipe will be inspected before installation.

a. Repair damage during handling and placement following Engineer's direction and approved manufacturer's recommendation.

b. Remove and replace any damaged pipe deemed not repairable by Engineer, at no cost to the Commission.

c. Closed profile PVC pipe:

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1) Do not repair in field.

2) Acceptable marks: Scrapes or gouges less than 2 inches in length and less than 1/2 total wall thickness on exterior of barrel.

3) Dispose of damaged pipe following manufacturer's recommendation.

3. Cleanliness.

a. Clean and remove foreign matter from each pipe, fitting, and appurtenance before placing in trench.

b. Should foreign matter be observed in previously installed pipe, fitting, or appurtenance, cease work until foreign matter is removed.

c. Close open ends of pipes and fittings with watertight cap or plug when work is stopped.

C. Trench Excavation, Backfill, and Test Pits: Follow Section 02315.

1. Before pipe installation:

a. Dig test pits to determine size, type, and exact location of existing pipe to which proposed pipe will connect.

b. Excavate sufficient trench in advance and test pit all existing underground utilities/structures, whether shown on Drawings or visually identified in field, to:

1) Verify actual locations.

2) Make reasonable changes in line and grade to resolve conflicts, at

Engineer’s approval.

c. Furnish Engineer location and elevation information when previously unknown or different underground utilities/structures are encountered.

2. Perform additional work made necessary because of failure to take above precautions at no cost to the Commission.

D. Pipe Embedment Material: Follow Standard Details and Section 02315.

1. Encasement and/or concrete cradle where indicated.

E. Pipe Placement.

1. Before pipe installation bring bedding material to grade along entire length of pipe to be installed.

2. Excavate bell holes, for type placed, at each joint to permit proper joint assembly and firm bedding for entire length of pipe barrel.

3. Install pipe to true uniform line and grade with continuous bearing of barrel on bedding material.

4. Where indicated, place erosion checks or concrete anchors following Standard Details.

a. Cure concrete anchors minimum of 2 hours before placing backfill.

5. Install pipe upgrade with bell pointing upstream. Pipe may be installed with bell pointing downstream with Engineer's approval.

6. Place each section of pipe to form close concentric joint with adjoining section and to prevent sudden offsets in flow line.

7. Place sufficient backfill on each section of pipe, as it is installed, to hold it firmly in place.

8. Install DIP and fittings following Section 02510.

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9. PVC AWWA C900 Pressure Pipe: Follow Section 02510.

F. Point Repairs: Replacement of existing sewer from 5 linear feet to 10 linear feet to correct identified problems with sewer main.

G. Verification of Design Slope and Invert Elevations:

1. Installations of 0.5 Percent or Less: Survey immediately upon completion of each segment before setting the cone section.

2. Reinstall segment(s) of pipe where slope or elevations are not to design at no additional cost to the Commission.

H. Work Orders designated as an emergency shall commence work within 24 hours of issuance.

3.3 JOINTS

A. PVC Pipe:

1. Clean joint surfaces immediately before jointing.

2. Apply lubricant, align spigot to bell, inserting until it contacts gasket evenly all around, then force pipe units together with proper equipment.

a. Insert spigot ends into bells to depth marked on pipe.

b. If spigot depth reference mark is missing, improperly placed, or on field-cut pipe, mark depth reference around entire circumference of pipe before making joint.

3. Field Cut:

a. Cut square and bevel outer edge same as factory-made spigot ends.

b. Closed profile PVC pipe: Seal exposed cells on cut ends following manufacturer's recommendation.

c. Open profile PVC pipe: Cut 18 inch and larger pipe following manufacturer’s recommendation.

B. DIP: See Section 02510.

C. RCP:

1. Clean RCP joint surfaces immediately before jointing and liberally coat pipe joints with lubricant.

2. Fit bell or spigot with gasket following manufacturer's instructions.

a. Joint pipes with equipment designed for purpose.

b. Before joint is completely home, check gasket position using suitable gage.

c. If gasket is dislocated, repeat entire joining process using new gasket.

3. For pipe with steel end ring joints, after joining has been completed, completely fill exterior joint spaces with mastic or mortar and fill interior joint spaces on pipes 36 inch and larger diameter with mastic or mortar and remove excess material from inside of pipe.

4. Joint Opening: Maximum 1/2 inch, unless otherwise shown on Drawing.

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D. PVC AWWA C900 Pressure Pipe: Follow Section 02510.

3.4 SEWER SERVICE CONNECTIONS

A. Install following Standard Details and Contract Documents.

B. Service connections to DIP, PVC AWWA C900.

1. PVC SDR 26 or SDR 35.

2. Install transition gasket to mechanical joint tee.

C. Tapping Existing Main:

1. Tap existing sewer with motor driven tapping machine utilizing diamond core bit.

D. Sewer Service Connection Renewal.

1. Before connection to mainline, take necessary steps to assure minimum 2 percent grade. Remand to Engineer for resolution when 2 percent grade cannot be obtained.

2. Utilize existing tee at main line unless otherwise directed by Engineer.

3. When not utilizing existing tee remove existing pipe and replace with PVC pipe and tee, wye, or tap with approved saddle.

4. Reconnect and restore service by end of workday.

5. Abandon existing tap, tee, wye, or thimble not utilized for renewal as described herein.

6. Where sewer service connection is same size as existing sewer, cut in PVC tee or wye branch with adapters.

7. Where existing tap with double connection requires replacement, install 2 single connections.

8. Where indicated or directed by Engineer, tap directly into manholes for sewer service connections specified herein.

9. Renewal of existing asbestos cement (AC) pipe.

a. Comply with OSHA requirements for sawing AC pipe.

b. Use water during sawing to prevent dust from being generated, and to shield and contain debris.

c. Allow only workers directly involved in sawing AC pipe in work area during sawing operations.

d. Leave AC pipe to be abandoned intact in largest possible pieces.

1) Do not crush, break up or cut into small pieces.

e. Move cut sections of AC pipe to side wall of trench excavation.

1) Do not damage or break AC pipe into smaller debris.

2) Abandon AC pipe minimum of 8 inches from new service.

f. Cover cut sections and ends with 6 mil plastic sheeting before backfilling.

g. Install new pipe without disturbing AC pipe sections.

h. Install cleanout at property line following Standard Details and following

Section 02955 unless otherwise directed by the Engineer.

E. Post Lining Installation of New Service Lateral.

1. Preparation.

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a. Excavate to host pipe elevation.

b. Remove host pipe material from area of new connection, so tap saddle will fit onto outside of liner without damaging it.

c. Clean off liner’s exterior and prepare surface for seating saddle.

d. May require saddle to sit on bed of resin to smooth out surface.

e. Grinding to smooth the surface is not permitted.

2. Installation.

a. Cut hole into liner using liner manufacturer’s approved cutter, leaving no burrs or damage to mainline liner.

b. Center saddle over hole in the liner’s exterior.

c. Install strapping bands to hold saddle onto liner without crushing or distorting the liner shape.

d. Connect lateral to saddle tap as noted herein and following Standard Details.

e. Install lateral-mainline interface seal at no additional cost to the Commission.

f. Internal CCTV inspect new service lateral for defects or distortion to main liner.

g. Perform lateral-mainline interface testing as described herein.

h. Repair any defect to lateral, main, or interface seal at no cost to the Commission.

i. For lined mains, install lateral—mainline interface seal following Section 02955.

F. Area Service Connection Contracts (AC and LC) Only.

1. Engineer will issue an average of 3 work orders per week for sewer service connections to be constructed in the order they are received, or as directed by Engineer.

2. Schedule work orders designated as health hazards to be completed within 10 working days and other work orders are to be completed within 15 working days of issuance.

3. Provide sufficient equipment and work forces to commence and complete each connection within prescribed timeframe.

4. When directed to mobilize to site designated as an Emergency by Engineer start within 24 hours.

a. Cost incurred by the Commission due to work orders not completed within timeframe specified herein may be deducted from monies owed Contractor.

b. Issuance of new work orders may be suspended until outstanding work orders are completed.

c. Complete cleanup, restabilize, and restore as weather permits on each service connection location before leaving site to commence work at another location.

1) Restoration non-paved areas: Follow Section 02920.

3.5 CONNECTIONS TO EXISTING SEWERS AND MANHOLES

A. Install following Standard Details and Contract Documents.

B. Verify proposed connection for grade, alignment and existing pipe material to existing sewer before installation of pipe.

C. Maintain existing sewage flows during connection to existing sewer.

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1. Take precautions and employ methods required to prevent sewage backup.

2. Bypass pumping may be used as option for flow diversion.

3. Return diverted sewage to sanitary system and do not discharge on surfaces or into streams or storm drains.

a. Use enclosed bypass flumes equivalent in size to existing sewer being diverted, when required.

4. Immediately clean and disinfect raw sewage spills and overflows caused by operation.

a. Immediately report sanitary sewer spills and overflows onto any surface to the

Commission Emergency Call Center at 301-206-8222.

1) No surfaces or amounts are exempt.

2) Telephone details available at that time to WSSC Customer Care Agent.

b. Provide completed Sanitary Sewer Overflow (SSO) Event Form located at end of this section to Engineer by end of workday.

1) Include date, start and stop times, the duration, volume, whether overflow went into a waterway, impact, contacts, resolution, how recurrence will be prevented, and any other information required on SSO Event Form.

2) Engineer will fax (301-206-8114) completed form to WSSC Wastewater Collection System Group, Planning Unit within 24 hours of SSO event.

c. SSO signs.

1) Post any time there is a chance of public exposure or when SSO occurs in close proximity to a waterway is 10,000 gallons or greater or is a threat to human contact.

2) Available from Commission Customer Care Depots.

3) Do not remove while evidence of SSO remains.

a) Post for 2 weeks for SSO up to 100,000 gallons.

b) Post for 30 days for SSO greater than 100,000 gallons.

5. Personally notify Schools, Hospitals, Daycare Centers, Elder Care, and similar areas of a SSO in vicinity as soon as possible.

D. Connect pipe to existing concrete manhole by core drill method.

1. Unless otherwise noted, provide flexible gasket connector following manufacturer’s recommendation.

E. When connecting DIP or RCP to existing brick manhole: Follow Standard Details.

F. When building manhole on existing sewer: Follow Standard Details.

G. Sewer service connections: Connect to existing main line sewers as specified herein and following Standard Details.

3.6 INSTALLATION OF CASING PIPE IN OPEN CUT

A. Install casing pipe in open cut following Section 02315 and specified herein.

3.7 MANHOLES

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A. General: Watertight.

B. Construction and Handling.

1. Construct manholes of precast sections, cast-in-place concrete, following Standard Details and Drawings.

2. Precast Manholes.

a. Protect plant-accepted manhole sections from damage while in storage at plant, in transit, and at Contract site.

1) Handle with proper size equipment, using only appropriate lifting holes or eyes.

2) Keep joint ends of sections clean and place on wood blocks, pallets, or other appropriate material, never on ground.

b. Install manhole sections following manhole manufacturer’s written assembly instructions and as specified herein.

1) Before assembly, inspect joint ends for defects or damage that may prevent watertight joint.

2) Thoroughly clean joint surfaces, remove debris and foreign matter, and keep joint surfaces clean during assembly.

3) Manhole rejected by Engineer: Removed and replaced at no expense to the

Commission.

4) Repair damaged manhole sections following manufacturer's recommended repair methods.

3. Cast-in-place concrete manholes: See Section 03300.

a. Flexible gasket connectors: See Section 03400.

4. Lined Manholes.

a. Installation: Follow Manufacturer’s recommendations.

b. After installation of lined precast concrete manholes, visually inspect lining for damage. Repair damaged surfaces following manufacturer’s submitted recommendations.

C. Flow Channel/Benches.

1. Form appropriate flow channel/bench in bottoms of manholes: Follow Standard Details.

2. Brick: Follow masonry work for manholes in Section 04200 and Standard Details.

3. Precast concrete: Follow Section 03400.

a. Fill unfinished gap in channel/bench to permit pipe installation by applying bonding compound and non-shrink grout, finish flush with contour of channel/bench and cure following bonding compound and grout manufacturer's recommendations.

b. No repair or modification to channel slope, other than unfinished gap, will be permitted.

D. Pipe to Manhole Connections.

1. Cut pipe square before installation.

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a. Place so springline edges of pipe are flush with inside wall or extend a maximum of 2-1/2 inches following manufacturer’s recommended installation procedures.

b. Where pipe is extended into manhole, coordinate slope of pipe and slope of notch in invert to ensure smooth transition.

2. Fit flexible gasket connector between pipe and manhole described herein except for following connections:

a. When pipe enters manhole at slope greater than 10 percent.

b. Where pipe enters manholes at angle.

c. Where manhole is built over existing sewer pipe, except when existing sewer pipe is PVC.

d. When either DIP or RCP is connected to existing brick manhole.

e. Parallel connections.

3. Insert pipe following connector manufacturer's written recommendations.

a. Ensure that pipe is centered in connector, that full barrel portion of pipe is fully inserted, and that pipe is properly bedded immediately adjacent to manhole.

b. When flexible gasket connector is not used for reasons stated herein, use quick setting non-shrink grouted pipe to manhole connections and bentonite collar following Standard Details.

c. Keep excavation dry and do not backfill until 2 hours have elapsed to permit grout to cure.

4. When AWWA C900 pipe is to be grouted using solvent cement:

a. Apply solvent cement following manufacturer’s instructions to entire exterior portion of pipe to be grouted into wall.

b. Coat softened pipe exterior with concrete sand and allow pipe exterior to harden.

c. Grout sand-coated pipe into wall.

E. Set bentonite collar at pipe to manhole connections following Standard Details, for following situations:

1. For pipes 15 inch and larger diameter except at outside drop manholes.

2. When manhole depth is 16 feet or over, except at outside drop manholes.

3. When flexible connector is not used.

4. When a flexible connector is installed in existing manhole, except at outside drop manholes.

F. Set manhole steps for each manhole following Standard Details and manufacturer's recommendations.

G. Install watertight frame and cover on each manhole following Standard Details.

1. Transitions:

a. Install anchor rods in bolt inserts and align to pass through bolt holes in flange of manhole frame.

1) When bolt slot inserts are used, align as specified herein, then fill and pack mortar in bolt slot inserts and around anchor rods.

b. Precast Concrete Grade Ring Transition:

1) For all sizes frame and cover, see option for use of brick transition below.

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2) Following Standard Details for height requirements.

3) Set precast concrete grade rings in full beds of Type M mortar minimum ¼ inch and maximum 1 ¼ inch thick.

a) From April through November, wet grade rings and top of cone section immediately before placing mortar.

b) Mortar mix following Section 04200.

c) Point horizontal circumferential and vertical mortar joints, inside and outside, full width, maximum 3/8 inch in depth.

(1) Fill annular space between anchor rods and bolt holes, pack with mortar on top ring, and finish flush with ring surface.

d) After mortar has cured, place flexible gasket following Standard

Details.

e) Set frame and bolt in place and provide watertight seal by installing an

External Heat Shrinkable Sleeve.

(1) Store materials in a dry, ventilated area. Keep products sealed in original cartons and avoid exposure to direct sunlight, rain, snow, dust or other adverse environmental elements. Avoid prolonged storage at temperatures above 95°F (35°C) or below -4°F (-20°C).

Product installation should be done in accordance with local health and safety regulations.

(2) Cut the required lengths of Sleeve material (L) and Closure material (W) from the bulk roll per following guideline and ensure that the sleeve and closure are not damaged or contaminated:

L = Manhole structure circumference +3 to 6” overlap.

W = Sleeve Width

(3) Ensure all surfaces which the sleeve will be applied to are clean, dry and free of foreign objects and sharp edges.

(4) Size heat shrinkable sleeve to extend 3” – 4” above and below the upper and lower joints of the cone section, grade rings and frame.

As a guide, make a series of marks around the manhole where the bottom of the sleeve will be. Determine the lay flat length of the sleeve by measuring the circumference of the manhole structure at the marks and add the overlap dimension, (6” minimum).

(5) Warm the surface to drive off any moisture with a torch.

(6) Apply primer to the application surfaces, (i.e. steel, concrete, fiberglass etc.) Wait 5-15 minutes (depending on temperature and humidity conditions) until the primer is slightly tacky to touch before proceeding.

(7) Roll up the cut sleeve ensuring that the release liner is still on the adhesive backing. Caution: Do not allow exposed adhesive to fold over on itself.

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(8) Remove ~ 6” of the release liner from the sleeve. Using the perimeter marks as a guide, begin wrapping the sleeve around the manhole while gradually removing the release liner.

(9) Ensure that the top and bottom edges of the sleeve are uniformly aligned at the overlap.

(10) Place the closure seal on a flat surface (adhesive side up) and apply gentle heat to activate the adhesive. Center the closure vertically over the overlap and apply a small amount of heat to the face of the closure. Using a gloved hand, pat the closure down alternating with heat and pressure. Continue until the closure is fully bonded.

(11) Heat the sleeve starting from the bottom edge using a moderate to high torch flame. Apply heat circumferentially around the structure. Continue heating upward as the sleeve shrinks. Use a gloved hand or roller to smooth wrinkles and push out trapped air.

(12) Sleeve may have been draped over the manhole frame gussets after shrinking. Cut the sleeve around the gussets with a knife.

Apply gentle heat and press the sleeve onto the steel frame. Trim excess material protruding above the steel manhole frame and cover.

(13) Visually inspect the installed sleeve to ensure the sleeve is in full contact with the cone section and manhole frame, adhesive flows beyond the sleeve edges, and no cracks or holes are in the sleeve…