R iver R un R d

Birch Tree Loop

Y ocona Ridge Rd

DRAINAGE INLET NUMBER

STORM DRAIN TO BE LINED

EXISTING STORM DRAIN

DRAWN

CHECKED

ENGINEER

JOB NUMBER

CADD FILE

DATE

SHEET TITLE

SHEET NUMBER

S i t e

L a y o u

F r

L A

F A

Y E

T T

E

C

O U

N T

Y

Y o c o n a

R i d g e

S u b d i v i s i o n

C i y f

O x f o r d

L a f a y e t e

C u n t y

M i s s i s s i p p i

EDJ

E.JONES

LC-241101

26 November 22

C:\County\12 Oaks\Bid Document Map2024.dwg

TOTAL PROJECT LENGTH IS APPROXIMATELY 410 LF OF STORM DRAINS WITH PIPE SIZES OF 54"

DIAMETER, CONTRACTOR TO VERIFY LENGTH AND SIZE OF STORMDRAIN

NOTES

1) THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING ALL PIPE AND INLET DIMENSIONS INCLUDING DIAMETERS, LENGTHS, DEPTHS, AND BOX SIZES AND CONFIGURATIONS FOR THIS PROJECT.

2) ALL DRAINAGE PIPES ARE HDPE.

3) PIPE CLEANING SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR.

4) ANY CONFLICTS FOUND DURING THE CLEANING OF THE PIPE, INCLUDING BUT NOT LIMITED TO UTILITY CASINGS, CONDUITS AND WIRES, THE CONTRACTOR MUST NOTIFY THE COUNTY IMMEDIATELY

5) ANY REMOVAL OR MODIFICATIONS TO INLET TOPS OR BASINS SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR AND

COORDINATED WITH THE COUNTY.

6 ALL INLETS REMOVED, MODIFIED OR ALTERED BY THE CONTRACTOR SHALL BE REPAIRED BY THE CONTRACTOR AND

APPROVED BY THE COUNTY.

7) ACCESS TO ANY JUNCTION BOXES WITHOUT DIRECT ACCESS SHALL BE COORDINATED WITH THE COUNTY.

8) PORTABLE RESTROOM FACILITIES ARE REQUIRED AND SHALL BE PLACED IN A LOCATION DETERMINED BY THE COUNTY.

9) MATERIAL AND EQUIPMENT STORAGE SHALL BE IN A LOCATION APPROVED BY THE COUNTY.

REVISIONS:

No. Revision Date

1 Modify Note #1 12/3/24

+/- 54" HDPE (Contractor to Verify)

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36" HDPE

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18" HDPE

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24" HDPE

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54" HDPE

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18" HDPE

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18" HDPE

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DAYLIGHT END OF PIPE

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SITE LAYOUT

CURED-IN-PLACE PIPE LINING (CIPP) FOR STORM DRAIN

ULTRAVIOLET LIGHT CURED CIPP

PART 1 GENERAL

1.1 SCOPE

A. Work under this section consists of furnishing all materials, labor, and equipment required for the installation of cured-in-place pipe (CIPP) in storm drains cured by ultraviolet (UV) light.

1.2 DESIGN AND PERFORMANCE REQUIREMENTS

A. The CIPP shall be designed for a life of 75 years or greater in accordance with

ASTM F1216, Appendix X.1, for “fully deteriorated gravity pipe conditions.”

The Bid Form and/or Drawings may list alternate minimum required thicknesses for installation based on the Engineer’s decision for specific installations and may list specific thicknesses for larger diameter storm drains.

Each CIPP shall be designed to withstand internal and/or external loads as dictated by the site and pipe conditions. Unless listed by the Engineer on the Bid

Form and/or Drawings, the required installed thickness of the CIPP shall be derived using the standard engineering methodology as found in ASTM F1216, Appendix X1. In no case shall the installed thickness be less than 3 mm. The thickness calculations shall be submitted to the Engineer prior to CIPP installation. The designs shall include a step-by-step calculation that shows all equations, defines all variables, lists all assumptions, and clearly indicates all values used for the design.

B. The layers of the finished CIPP shall be uniformly bonded. It shall not be possible to separate any two layers with a probe or point of a knife blade so that the layers separate cleanly or such that the knife blade moves freely between the layers. If separation of the layers occurs during testing of the field samples, new samples will be cut from the work. Any reoccurrence may be cause for rejection of the work.

C. The structural CIPP wall thickness design for this Project is being based on the design criteria listed below, which reflects typical physical properties of Saertex

Liner by Saertex Multicom. The wall thickness calculations are also in accordance with ASTM F2019-20 and the design equations in Appendix X1 of

ASTM F1216. The minimum wall thicknesses presented herein for the various depths are based on Saertex and shall be considered the minimum wall thicknesses for each depth category.

For any products other than Saertex, the Contractor shall submit detailed product information and test results to document the physical properties of the proposed liner. The tests results shall include certified 20,000 hour test results to document the long-term creep factors to be used in the design calculations. The Contractor shall also submit design calculations from the proposed liner manufacturer which are based on the proposed product’s documented physical properties. The liner thicknesses for installation shall be adjusted (as required by the calculations) to the various specified depths based on the proposed product’s physical properties and the design calculations submitted. Under no circumstance shall the installed liner be thinner than specified herein for the various depths of storm drain, regardless of the submitted calculations. Payment will be made for the installed

CIPP based on the depth of installation.

Design Safety Factor 2.0

Short-Term Flexural Modulus 2,800,000 psi

Short-Term Flexural Strength 39,000 psi

Creep Retention Factor 75% (based on 20,000 hour tests)

Ovality 2%

Soil Modulus 1,000 psi

Soil Density 120 pounds per cubic foot

Soil Coefficient of Friction 0.130 r

Groundwater Depth Ground Surface Elevation unless otherwise noted

Live Load H20 Highway

Poisson’s Ratio 0.3

Enhancement Factor, K 7

Service Temperature Range 40 to 140 degrees F

Maximum Long-Term Deflection 5 percent

NOTE: A modification to the soil modulus may be considered for storm drains with more than 30 feet of cover as approved or specified by the

Engineer. In addition, where other data exists for ovality or other parameters, the required structural CIPP wall thickness shall be based on the more stringent parameters unless otherwise approved or specified by the Engineer.

Based on the above Saertex physical properties, the minimum installed, cured liner thicknesses per various depths shall be as listed below. The Bid Form and/or Drawings may list alternate thicknesses for installation based on the

Engineer’s decision for specific installations.

15” storm drain: 0’ to 10’ deep = 3 mm

10.1’ to 20’ deep = 4 mm

20.1’ to 30’ deep = 5 mm

18” storm drain: 0’ to 13’ deep = 4 mm

13.1’ to 22’ deep = 5 mm

24” storm drain: 0’ to 12’ deep = 5 mm

12.1’ to 18’ deep = 6 mm

18.1’ to 25’ deep = 7 mm

30” storm drain: 0’ to 10’ deep = 6 mm

10.1’ to 15’ deep = 7 mm

15.1’ to 21’ deep = 8 mm

21.1’ to 27’ deep = 9 mm

36” storm drain: 0’ to 10’ deep = 7 mm

10.1’ to 14’ deep = 8 mm

14.1’ to 18’ deep = 9 mm

18.1’ to 23’ deep = 10 mm

42” storm drain: 0’ to 10’ deep = 8 mm

10.1’ to 13’ deep = 9 mm

13.1’ to 16’ deep = 10 mm

16.1’ to 20’ deep = 11 mm

20.1’ to 25’ deep = 12 mm

48” storm drain: 0’ to 8’ deep = 9 mm

8.1’ to 12’ deep = 10 mm

12.1’ to 15’ deep = 11 mm

15.1’ to 18’ deep = 12 mm

18.1’ to 22’ deep = 13 mm

22.1’ to 26’ deep = 14 mm

For pipes greater than 48” design calculations by shall be provided by the manufacturer.

1.3 SUBMITTALS

A. Submit a contractor statement of qualifications which identifies key personnel and their specific UV light cured CIPP experience, and recent projects listing the total length of UV light cured CIPP installed by host pipe diameter. Work and personnel experience listed must reference projects that used process method and materials to be used on this project. Include project names, references/contacts and phone numbers.

B. Submit, prior to the installation or use of any lining materials or equipment, certified test results from the manufacturers which indicate that all materials conform to the applicable requirements.

C. Submit test results of the proposed resin that meet the chemical resistance requirements of ASTM F2019-20, Section 5.2.7. The chemical resistance tests will be completed in accordance with Test Method D5813.

D. Submit manufacturer information that describes the materials, curing speeds, curing installation processes, installation pressures, temperature limitations, and recommended post curing documentation.

E. Submit manufacturer material certifications that state conformance to the specifications. Material certifications shall be current and must reference the project.

F. Submit manufacturers’ shipping, storage and handling recommendations for all components of the CIPP system.

G. Submit CIPP wet-out information. Wet-out information shall include the identification of the wet-out facility and process description and a sample wet-out form. The wet-out forms shall document, at a minimum, the date and time of wet-out, the wet-out supervisor, the wet-out facility address, the location where the CIPP will be installed (by inlet numbers), the CIPP diameter, the length of wet-tube and dry-tube, the thickness of the CIPP, the liner manufacturer, the resin used (by product name and batch/shipment number) and quantity, the catalyst(s) used (by product name) and quantity, any quality control samples taken, and all else pertinent to the wet-out process.

H. Installation procedures and curing schedules shall be submitted. The

Contractor shall provide this information without delay or claim to any confidentiality. Testing procedures and quality control procedures shall also be submitted.

I. Submit a sample CIPP installation report. The report shall include items such as inlet numbers, location, project number, date, time, temperature, curing time, liner thickness, etc.

J. Submit the recording of the curing parameters for every segment. The recording shall include:

a. Curing speed

b. Light source working and wattage

c. Inner air pressure

d. Curing temperatures

e. Date and time

f. Length of liner

K. Submit data from during the curing process. Infrared sensors shall be used to record curing data that shall be submitted to the Engineer with a post CCTV inspection. This shall be accomplished using a computer and database that are tamper proof.

L. With each shipment of CIPP delivered to the jobsite, submit certifications that the CIPP lining was manufactured in accordance with these specifications and the appropriate ASTM standards. In addition, wet-out forms documenting the wet-out shall be delivered with each section of CIPP manufactured and delivered to the jobsite.

M. With each shipment of resin to the wet-out facility, submit certification that the resin was manufactured under ISO 9001 certified procedures and meets these specifications.

N. Submit a plan for bypassing sewage around the work area and facilities where sewage flows must be interrupted to carry the work. The plan shall be reviewed by the Engineer and shall be acknowledged as acceptable before any work is started.

O. Submit CIPP thickness. Any deviations from the design parameters should be clearly noted.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Materials shall be shipped, stored, and handled in a manner consistent with written recommendations of the CIPP system manufacturer to avoid damage.

Damage includes, but is not limited to, gouging, abrasion, flattening, cutting, puncturing, premature curing, or (UV) degradation. All damaged materials shall be promptly removed from the project site at the Contractor’s expense.

1.5 QUALIFICATIONS

A. The Contractor performing the CIPP installation shall be fully qualified, experienced and equipped to complete this work expeditiously and in a satisfactory manner and shall be certified and/or licensed as an installer by the

CIPP manufacturer. The Contractor must have successfully installed at least

300,000 feet of glass fiber reinforced, UV light cured CIPP for a minimum of 10 years in wastewater collection systems. In addition, the Contractor shall have successfully installed a minimum of 5,000 feet of 24-inch-diameter or larger glass fiber reinforced, UV light cured CIPP.

The Contractor shall submit detailed references (project names, dates, owner contact names and numbers, project descriptions with lengths installed, etc.) to the

Engineer as requested to demonstrate compliance with the above experience requirements. The Engineer’s decision on whether the Contractor meets the experience requirements shall be final, and the Contractor shall not be due any additional money if the experience requirements are not met.

B. The Contractor’s personnel shall have the following experience with the products and installation method to be used on this project.

Project Manager – Shall have a minimum of 5 years managing CIPP projects for wastewater collection systems.

Superintendent - Shall have a minimum of 5 years of on-site supervision of CIPP projects for wastewater collection systems. The superintendent shall have supervised a minimum of 300,000 feet of installed CIPP in wastewater collection systems of which 50,000 linear feet must be glass fiber reinforced, UV light cured CIPP. In addition, the superintendent shall have been the direct, on-site superintendent for a minimum of 15,000 feet of 24-inch diameter CIPP or larger.

Included in the 15,000 feet of 24-inch diameter CIPP or larger shall be pipe diameters that are equal to or greater than the largest pipe diameter included in this project. Alternatively, the glass fiber reinforced, UV light cured CIPP manufacturer may provide a full-time, on-site representative that in conjunction with the Contractor’s superintendent meets these requirements.

C. The CIPP product manufacturer shall have at least 10 years of experience in the successful manufacturing of glass fiber, UV cured-in-place liners. The CIPP product must have been installed in a minimum of 5,000,000 feet or 4,000 inlet to inlet line sections of successful wastewater collection system installations worldwide, of which 1,000,000 feet shall be within the U.S. The manufacturer and facility shall not change throughout the duration of the contract unless approved by the Engineer in writing.

D. Approved CIPP products are listed in these specifications. Even though the

Contractor’s product may be listed as approved, the Contractor shall still meet the experience requirements specified above, or the Contractor will not be approved for this work.

1.6 ENVIRONMENTAL REQUIREMENTS

A. The use of the product shall not result in the formation or production of any detrimental compounds or by-products at the outfall of the stormdrain.

1.7 PROJECT ACCESS

A. The Contractor shall utilize existing road rights-of-way and utility easements to perform the work unless notified otherwise. The Contractor shall coordinate with and meet the requirements of Lafayette County Department of Developmental

Services

1.8 WARRANTY

A. The materials used for the project shall be certified by the manufacturer for the specified purpose. The manufacturer shall warrant the liner to be free from defects in raw materials for two (2) years from the date of final acceptance by the Owner.

The Contractor shall warrant the liner installation for a period of two (2) years from the date of final acceptance by the Owner.

1.9 REFERENCE SPECIFICATIONS, CODES AND STANDARDS

A. The Contractor shall ensure that the products and work comply with the current version of the following American Society for Testing and Materials (ASTM) standards:

1. ASTM D543 - Test Method for Resistance of Plastics to Chemical Reagents

2. ASTM D578 - Standard Specification Glass Fiber Strands

3. ASTM D638 - Standard Test Method for Tensile Properties of Plastics

4. ASTM D790 - Standard Test Method for Flexural Properties of

Unreinforced and Reinforced Plastics and Electrical Insulating Materials

5. ASTM F1216 - Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin Impregnated Tube

6. ASTM F1743 – Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Pulled-in-Place Installation of Cured-in-Place

Thermosetting Resin Pipe (CIPP)

7. ASTM F2019-20 - Standard Practice for Rehabilitation of Existing

Pipelines and Conduits by the Pulled in Place Installation of Glass

Reinforced Plastic Cured-in-Place (GRP-CIPP) Using the UV-Light

Curing Method

8. ASTM D2122 Standard 1 Test Method for Determining Dimensions of

Thermoplastic Pipe and Fittings

9. ASTM D3567 Standard Practice for Determining Dimensions of

‘‘Fiberglass’’ (Glass-Fiber- Reinforced Thermosetting Resin) Pipe and

Fittings

10. ASTM D5813 - Standard Specification for Cured-in-Place Thermosetting

Resin Sewer Pipe

PART 2 PRODUCTS

2.1 CURED-IN-PLACE-PIPE LINING

A. UV Cured-In-Place-Pipe (CIPP) lining shall be one of the following products or approved equal. The products below shall adhere to all requirements specified herein and shall be modified as necessary to meet these requirements

▪ Saertex Liner by Saertex Multicom

▪ Inliner STX by Granite Inliner

▪ Alphaliner by Reline America

▪ iPlus Glass by Insituform

B. The CIPP tube shall consist of one or more layers of glass fiber reinforced materials capable of carrying resin, withstanding installation pressures and curing temperatures. The CIPP tube should be compatible with the resin system to be used on this project.

C. The CIPP tube should be fabricated under controlled conditions to a size that, when installed, will tightly fit the internal circumference and the length of the original conduit.

The tube shall be able to stretch to fit irregular pipe sections and negotiate minor bends in the storm drain and shall have sufficient strength to bridge missing pipe sections.

D. The glass fiber tube shall be saturated with the appropriate resin using a resin bath system to allow for the lowest possible amount of air entrapment. An inner and outer material shall be added that are both impervious to airborne styrene with the outer material also having UV blocking characteristics. If required by the liner manufacturer, the inner membrane will be removed after the installation and curing processes are completed.

E. The Contractor shall verify the lengths in the field before cutting the CIPP tube to length.

Continuous individual liners can be made over one or more inlet to inlet sections.

F. The CIPP tube shall be uniform in thickness and when subjected to the manufacturer recommended installation pressures shall meet or exceed the designed wall thickness.

G. Interior and exterior plastics shall be styrene resistant to protect and contain the resin used in the liner.

H. A pre-liner (or “gliding foil”) shall be inserted into the pipe prior to inserting the liner as deemed necessary by the Contractor and/or as required by the CIPP manufacturer for proper installation and to meet CIPP warranty requirements.

I. The liner is to be constructed of with an inner fleece layer giving the exposed inside surface a resin rich layer.

J. The wall color of the interior pipe surface of CIPP after installation shall be a light reflective color so that a clear detailed examination with CCTV inspection may be made.

K. The fiberglass within the liner shall be non-corrosion (E-CR Glass) material and shall be free from tears, holes, cuts, foreign materials and other surface defects. Its glass fibers must extend in a longitudinal direction to ensure no longitudinal stretching during the pull-in process.

L. At time of manufacture, each lot of CIPP tube shall be inspected and certified to be free of defects. The CIPP tube shall be marked for distance at regular intervals along its entire length, not to exceed five feet. Such markings shall also include the CIPP tube manufacturer’s name or identifying symbol.

M. The resin used to impregnate the liner shall produce a cured liner pipe resistant to shrinkage, corrosion, abrasion and shall have a proven resistance to municipal wastewater.

The impregnation equipment shall contain devices to secure a proper distribution of resin.

Following impregnation, the fabric tube shall be exposed to a resin thickening procedure.

N. The resin shall be a chemically resistant, UV cured, isophthalic polyester resin or vinyl ester resin (as determined by the Engineer).

O. When combined with the CIPP tube, the resin system shall provide a CIPP that meets the structural requirements of ASTM F2019-20, the minimum physical properties specified in

Section 1.2.C, and those properties which are to be utilized in the design of the lining system for this project.

P. When combined with the CIPP tube, the resin system shall provide a CIPP that complies with the chemical resistance requirements specified in ASTM F2019-20, Section 5.2.7.

The chemical resistance tests shall be completed in accordance with ASTM D5813.

Q. The exact makeup of the resin system shall be submitted to the Engineer including the resin type (manufacturer name and specific resin and applicability to UV-cure CIPP) and formulations to include any added fillers and catalysts, chemical resistance information, and UV-cure procedures and requirements (including curing cycles, bulb wattage, etc.).

Any additional/mixing of fillers and catalysts to the resin shall be performed at the wet-out facility and not at any intermediary mixing facility unless approved otherwise by the

Engineer. Copies of the shipment documents from the resin manufacturer shall be submitted to the Engineer showing dates of shipment, the originating location and the receiving location. The Contractor shall submit a Certificate of Authenticity from the resin manufacturer for each shipment to the wet-out facility (to include the date of manufacture).

This information shall be submitted prior to manufacturing any CIPP.

R. The Contractor shall identify the wet-out facility where all CIPP under this Contract will be manufactured. All CIPP shall be manufactured from this designated wet-out facility throughout the entire Contract unless specifically approved otherwise by the Engineer in writing. Multiple wet-out facilities shall not be allowed.

S. The Engineer, Owner and/or an agent of the Owner may inspect the CIPP during manufacturing (during “wet-out”). The Contractor shall submit UV wetout schedules so that an agent of the Owner may inspect the CIPP manufacturing process. The Contractor shall submit a schedule for manufacturing the CIPP to the Engineer every Friday for the following week. The Engineer and Owner must be given an opportunity to witness the manufacturing of all CIPP for this project. If the CIPP is manufactured without providing the required notice to the Engineer, the CIPP will be marked as rejected prior to installation and will not be approved for installation in this project.

T. If the Engineer and/or Owner decide to inspect the manufacturing of the CIPP, the

Contractor shall provide full access to witness the wet-out process and shall provide any and all information related to the manufacturing as requested by the Engineer, Owner or the Owner’s agent without delay and without claims of confidentiality or product privacy, including documentation of all resin and added fillers/catalysts used for each CIPP segment.

U. The installed thickness shall be measured as specified elsewhere herein. The Contractor shall submit his proposed plan for ensuring that the installed CIPP meets the minimum thickness requirements. The plan shall include the proposed CIPP thickness to be installed

(pre-installation thickness) and detailed installation procedures to reduce stretching and to reduce migration of resin.

PART 3 EXECUTION

A. The Contractor shall continuously notify the public of the work being performed.

B. The Contractor shall develop and submit to the Engineer a protocol for addressing odor complaints during the CIPP installation process (primarily styrene odor complaints). The protocol shall include steps to be taken by on-site and management personnel immediately when the complaint is received, including discussing the odor with the property owners/residents to address their concerns and alleviating the odor from the home/residence or business using fans or other means as necessary. The Contractor shall also maintain a calibrated portable styrene test unit to immediately document the atmospheric concentrations of the styrene on the site and in the house/residence/business when a complaint is received. The styrene concentrations must be tested prior to exhausting the odors from the house/residence/business. The Contractor shall also utilize blowers (vacuum blowers) during the CIPP installation to exhaust odors from the storm drains and into the atmosphere during the installation as deemed necessary. This will help to minimize the potential for odors to travel up service laterals and into homes/businesses.

The blowers shall be strategically placed to exhaust the concentrated odors in an isolated location. The costs for addressing such odors issues/complaints shall be included in the unit prices bid for CIPP.

C. The Contractor shall perform and provide all necessary traffic control measures to complete the work.

D. The Contractor shall develop and submit to the Engineer a proposed shot plan at least 30 days prior to CIPP installation. The shot plan shall identify where the CIPP will be inserted, the direction of insertion (upstream or downstream), the storm drains included in each shot, plans for addressing CIPP in inlets that the shot goes through, access points, and any other relevant information. In addition, if there are any inlet-to-inlet sections that exceed the maximum length that can be provided, the Contractor shall submit information on the proposed methodology to install two or more shots, overlap details, sealing information, and all other relevant information. The Engineer will review and comment or approve.

The Contractor must address the Engineer’s comments and resubmit until resolved.

E. The Contractor shall clean and televise each length of pipe to be lined. Prior to lining the main storm drain and the pre-rehabilitation television inspection shall be completed.

F. Water for use on this project will be the responsibility of the contractor to provide.

G. The Contractor shall bypass pump flow around the lining work while it is being performed.

H. The Contractor shall take precautions to avoid damage or flooding to public or private property being served by the storm drain being lined. The Contractor shall be responsible for all flooding and pay for cleanup from flooding to the satisfaction of the property owner.

The Contractor shall document all backups and submit documentation to the Engineer including the reason for the backup, the time and date of the backup, the property owner’s name, address and phone number, the resolution to problem, the time and date the problem was resolved, and any special cleanup work that had to be performed. This required documentation shall be submitted for all backups regardless of when they occur. All cleanup shall be completed within 4 hours of the backup.

I. The Contractor shall furnish and install the CIPP lining in the full length of storm drain.

The installation of the CIPP shall be in complete accordance with the applicable provisions of ASTM F2019-20 except as modified herein, these specifications and the manufacturers' specifications.

J. As required by the CIPP manufacturer and/or as deemed necessary by the Contractor for a proper installation and to meet warranty requirements, a plastic sheet at least 10 mil thick

(pre-liner or gliding foil) shall be pulled into the host pipe prior to liner insertion to protect the liner from damage as the liner is pulled in.

K. The liner shall be pulled-in through an existing inlet or approved access point and fully extend to the next designated inlet or termination point. The pulling speed shall not exceed

15 ft/min. Care shall be exercised not to damage the tube during the pulling phase.

L. A constant tension winch should be used, as specified by the liner manufacturer, to pull the glass fiber liner into position in the pipe. The liner shall have a longitudinal fiberglass reinforcement band which runs the entire length of the liner ensuring that the pulling force is transferred to the band and not the fiberglass liner. Once inserted, end plugs shall be used to cap each end of the glass fiber liner to prepare for pressurizing the liner. The end plugs shall be secured to prevent them from being expelled due to pressure. Liner restraints shall be used in inlets.

M. The liner shall then be inflated with air with sufficient pressure to hold the liner tight to the host pipe wall.

N. The Contractor will video record the liner prior to commencement of the curing process, and make the recording available to the Engineer upon request.

O. CIPP curing shall be in accordance with applicable ASTM F2019-20, Section 6.6 and 6.7, with the following modifications:

a. The ultraviolet curing lamps shall operate in a sufficient frequency range to ensure the curing of the resin.

b. A camera must be located on the ultraviolet light assembly to enable the video inspection of the liner and to ensure that the liner has been properly inflated and any liner problems can be identified before curing begins.

c. The Contractor shall submit a documented record of time, rate of travel of the ultraviolet light assembly, and internal temperatures and pressures during the curing process to the Engineer upon request.

P. The UV light sources shall be assembled according to the manufacturer’s specifications for the liner diameter. For the liner to achieve the required water tightness and specified mechanical properties, the following parameters must be controlled during the entire curing process, giving the Engineer a record of the curing parameters over every segment of the entire length of the liner. The recording shall include:

a. Curing speed

b. Light source working and wattage

c. Inner air pressure

d. Curing temperatures

e. Date and time

f. Length of liner

Q. The optimal curing speed, or travel speed of the energized UV light sources, is determined for each length of liner based on liner diameter, liner thickness, and exothermic reaction temperature. Curing speed shall be as recommended by the manufacturer and determined by contractor based on various site specific field conditions. This shall be accomplished using a computer and database that are tamper proof. During the curing process, infrared sensors shall be used to record curing data that will be submitted to the Engineer with a post CCTV inspection.

R. If the liner is manufactured with a removable inner film, the inner film material shall be removed and discarded after curing to provide optimal quality of the final product.

S. The CIPP shall be neatly cut 2 inches from the inlet walls after installation unless otherwise directed by the Engineer. The CIPP shall be sealed at the inlets to provide a watertight liner connection at the inlet. There shall be no leakage of groundwater into the inlet between the CIPP and existing storm drain pipe and between the existing storm drain pipe and inlet wall. A hydrophilic waterstop (non-bentonite) comprised of modified chloroprene rubber shall be installed around the liner 6 inches from each inlet wall prior to processing the liner to provide additional waterstop protection. As the CIPP is expanded, the waterstop shall be pressed tightly against the existing storm drain to provide a leak-tight seal. The waterstop shall be Hydrotite as manufactured by Greenstreak (St. Louis, Missouri) or equal. All CIPP connections to inlets shall be further sealed with an approved non-shrink grout to completely cover the CIPP/inlet connection point. CIPP lining shall be sealed to inlet linings (where specified) in an acceptable manner as approved by the

Engineer. Further, all invert channels shall be coated with an approved grout to match the

CIPP elevations in the inlet. Submit detailed drawings of the pipe-inlet connections to the

Engineer for approval, including termination points in inlets and transitions with inlet linings where installed.

T. The Contractor shall fully reopen all of the existing active service connections in each length of storm drain following lining. The service connections shall be reopened from inside the storm drain by means of a closed-circuit television camera controlled cutting device appropriate for the CIPP. All openings shall be clean and neatly cut and shall be flush with the lateral pipe. The openings shall also be buffed with a wire brush to remove rough edges and provide a smooth finish. The bottom of the openings shall be flush with the bottom of the lateral pipe to remove any lip that could catch debris. Openings shall be

100% of the service lateral pipe. The Contractor shall re-open any service lateral that does not meet this requirement as evidenced by the post-rehabilitation inspections at no additional cost to the Owner. The Contractor shall be fully responsible for all backups and damage caused by not fully opening a lateral connection, including paying all costs associated with repairing damage as required by the Engineer, Owner and/or property owner.

U. Preliminary Post-CIPP TV Inspections: Immediately after the CIPP is installed and the service connections are completely opened and brushed, the Contractor shall televise the installed CIPP to verify and document that the CIPP was properly installed and cured and that all service connections have been opened as specified. The preliminary post-CIPP TV inspection videos shall be submitted to the Engineer within 1 day of the CIPP being installed. This will allow the Engineer to confirm that there are no CIPP issues that need addressed on this storm drain and/or future installations and that the service laterals are properly opened. The preliminary post-CIPP inspections shall clearly show the CIPP liner and all service connections.

The Engineer will accept these preliminary post-CIPP TV inspections for approving payment of the installed CIPP with the final post-CIPP inspections as specified herein being required prior to final payment. The Contractor may submit these inspections as the final post-CIPP inspections if all grout/concrete work is finalized in the connecting inlets

(including grouting the pipe connections, coating the invert channels, and performing the specified inlet rehabilitation) and all specifications are met. Completing all of the inlet work may be difficult to get finished so that the TV inspections can be submitted within 1 day as specified above. The Contractor’s unit price bid for the CIPP shall include preliminary post-CIPP and final post-CIPP TV inspections.

V. Installation reports shall be generated for each segment of liner installed. The reports shall document installation, including inlet numbers, street names/storm drain location, project number, date, time, temperature, curing time, curing parameters, curing speed, liner thickness, etc. A sample report shall be submitted to the Engineer for approval prior to installing any lining. The reports shall be submitted to the Engineer prior to requesting payment.

W. For every storm drain segment that is lined (storm drain segment is defined as the storm drain between two manholes, inlets or junction boxes), the Contractor shall provide a sample per ASTM F2019-20 for testing of installed CIPP flexural properties and thickness.

The CIPP testing shall include determining flexural strength, flexural modulus, and thickness of each sample. These three separate individual tests make up one completed

CIPP test. Payment will be made for each completed CIPP test at the unit price bid after the test results are submitted to the Engineer.

The Contractor shall be responsible for capturing the samples and preparing the samples for testing. In addition and where possible, the Contractor shall cut a 1-inch wide representative sample (taken at least 2 inches from the end of the specimen) for the

Engineer’s records. The Contractor shall label all samples including writing on the samples where they were taken (inlet numbers, work orders, and other relevant information) and the date they were taken.

The Engineer will direct the Contractor which samples to submit to the testing laboratory.

The Contractor shall retain a sample from all samples that are submitted to the testing laboratory until the end of the project. These samples shall be available upon request from the Engineer. The Contractor will copy the Engineer on all submittals to the testing laboratory. The testing laboratory shall submit all test results directly back to the

Contractor with a copy to the Engineer. The test results shall be returned to the Contractor and Engineer within 21 days from the laboratory receiving the samples. If the results are not received in this timeframe, payment will be withheld. It shall be the Contractor’s responsibility to ensure that the laboratory meets the specified schedule.

The Contractor shall select the independent testing laboratory and shall pay the laboratory for all tests. The Contractor will be paid for the tests through the Contract at the unit price bid for each completed test. All testing shall be performed by an independent, accredited, certified and experienced (minimum 5 years of experience) testing laboratory as chosen by the Contractor. The Contractor shall submit the name and location of the testing laboratory for approval. The submittal shall include the laboratory’s experience testing CIPP samples, the laboratory’s accreditation/certification to perform CIPP testing from a recognized accreditation body, and a certified statement from the laboratory that they are independent from and not associated with the Contractor in any way.

X. Any lining that does not meet the specified installed strength and/or thickness requirements, regardless of the amount below the specified requirements, shall be corrected by the Contractor in a manner approved by the Engineer at no additional cost to the Owner.

The Engineer’s decision on how to correct deficient CIPP installations shall be final.

Options for correcting deficient liner that will be considered by the Engineer include removing the liner and re-lining the storm drain, excavating and replacing the storm drain from inlet to inlet, pipe bursting the storm drain from inlet to inlet, re-lining storm drains completely from inlet to inlet, or providing the Owner with a substantial credit.

Credits will only be considered for lining that does not meet the required thickness. CIPP lining thickness may be up to 5% below the specified minimum installed thickness before the credit will be applied. For example, if the minimum specified thickness is 6 mm, the credit will only apply if the CIPP is less than 5.7 mm thick. There will be no “re-calculations” of required thicknesses based on actual flexural test results for that sample.

The minimum specified thicknesses shall be required regardless of the final flexural properties of the CIPP as installed. If a credit is acceptable to the Engineer and Owner, the credit shall be calculated by multiplying the bid price by the percent that the liner thickness is below the minimum required installed thickness as follows:

Credit = (1 – (installed CIPP thickness/min required thickness)) x Bid Price

The Contractor shall not assume that a credit will be acceptable to the Engineer or Owner or that the above formula will be used in all situations or for all installed CIPP thicknesses.

Liner thickness of less than 85% of the required minimum thickness will not be eligible for any payment.

All credits shall be accounted for on the monthly pay estimates (each and every month) as the failed test results are received by the Engineer. Credits shall not accumulate until the end of the Contract. In addition, any other defective CIPP shall be repaired within 21 days of being identified or payment will be withheld and work will not be allowed to continue.

Y. Following installation of the CIPP, reopening and brushing of all active service lateral connections, and completion of all inlet rehabilitation including vacuum testing (where applicable), the Contractor shall conduct a final post-rehabilitation television inspection of the completed work to verify that the liner installation is acceptable as defined herein. The storm drains shall be thoroughly cleaned prior to performing the television inspections. No cleaning equipment shall be in the storm drains during the post-rehabilitation inspections.

The pipe shall be dry so that the entire CIPP can be seen. This will require that temporary plugging or bypass pumping be provided for all post-rehabilitation television inspections.

The post-rehabilitation television inspections shall be within 3 feet of the actual storm drain length as measured above ground from center of inlet to center of inlet. Any inspection that exceeds this limit shall be re-performed and re-submitted to the Engineer prior to payment at no additional cost to the Owner. One copy of the final post-rehabilitation inspections shall be submitted to the Engineer for review and approval as specified. The inspections must be in order, correct and complete or the Engineer will immediately return the inspections to the Contractor for corrections.

Z. Payment will not be made for any storm drain lining until the Engineer has reviewed and approved the final CCTV inspection. The final CCTV inspection shall not be performed until all inlet rehabilitation work is completed (including vacuum testing where applicable). As specified previously herein, the Engineer will accept preliminary post-

CIPP TV inspections for payment with the final post-CIPP TV inspections being required prior to payment of the inlet rehabilitation work (where applicable) and/or final payment.

The Contractor shall submit the required digital inspections a minimum of 10 days in advance of any payment request to provide the Engineer ample time to review the information.

AA. There shall be no holes, dry spots, lifts, ribs, wrinkles, blisters, ridges, splits, bulges, cracks, delaminations or other type defects in the CIPP lining. In addition, there shall be no groundwater leakage through the CIPP or between the liner and the existing pipes including at the connections to inlets. Defective lining and groundwater leakage shall be repaired in a manner suitable to and approved by the Engineer at no additional cost to the

Owner.

The Engineer’s decision on how to correct defective lining shall be final. Options for repairing defective lining that will be considered by the Engineer include removing the liner and re-lining the storm drain, excavating and replacing the storm drain from inlet to inlet, pipe bursting the storm drain from inlet to inlet, re-lining storm drains completely from inlet to inlet, or installing a sectional CIPP patch to repair the defective area.

In addition, the Engineer and Owner may require an additional warranty beyond the standard warranty period (defined elsewhere in these Specifications) for defective CIPP at no additional cost to the Owner. This additional warranty will be for a maximum of five years (two year standard warranty plus three additional years). The warranty should include all costs associated with the remedial work and be non pro-rated. This additional warranty may also be required on the entire “batch” of CIPP if the defect appears to be material related (resin, tube, catalyst, etc.) or wet-out related regardless of the acceptance test results or visual review of any particular CIPP liner section in that “batch”.

If a CIPP patch is approved as a repair method for inlet-to-inlet CIPP, the Owner will not pay the full bid price for that storm drain segment (inlet to inlet). The price reduction

(credit) shall be negotiated with the Contractor and shall be acceptable to the Owner. The credit shall be equal to at least 25% of the unit price bid for the CIPP installation and shall apply to the entire CIPP lining from inlet to inlet. The Owner shall have the final decision on the amount of the credit. Any such credits shall be accounted for on the monthly pay estimates (each and every month) as the defective CIPP is repaired. Credits shall not accumulate until the end of the Contract.

END OF SECTION