2024-20_SH_105_Gravity_Sewer_Upgrades-LaSalle_to_Highland_Hollow-Specifications_(IFB).pdf

CITY OF CONROE

TECHNICAL SPECIFICATIONS

FOR

Gravity Sewer Upgrades – SH 105 West LaSalle to Highland Hollow

Project No. 2024-20

August, 2026

City of Conroe – Engineering

700 Metcalf St., Conroe, TX 77301

CITY OF CONROE – ENGINEERING

Gravity Sewer Upgrades – SH 105 West-LaSalle to Highland Hollow

Project No. 2024-20 i

A. Summary of Works B. Special Notes C. Technical Specifications

Section 00100 General Section 00100-001 Project Submittals Section 00100-002 Shop Drawings Section 00100-003 Construction Schedule Section 00100-004 Trench Safety System Section 00100-005 Control of Ground and Surface Water Section 00100-006 Clearing & Grubbing Section 00100-007 Preparation of Construction Zone Section 00100-008 Waste Material Handling and Disposal Section 00100-014 Cement Stabilized Sand Section 00100-015 Sodding for Erosion Control Section 00100-016 Hydro mulch Seeding Section 00100-020 Mobilization Section 00100-021 Subsurface Utility Exploration Section 00100-025 Painting and Protective Coating of Misc. Items

Section 00200 Water Systems Section 00200-020 Storm Sewer Junction Boxes, Manholes and Inlets Section 00200-021 Reinforced Concrete Pipes Section 00200-023 Hydrostatic Testing of Pressure Pipes

Section 00300 Sanitary Sewer Systems Section 00300-001 Abandonment of Sanitary Sewer and Manholes Section 00300-002 Sewer Flow Control and Bypass Pumping Section 00300-003 Gravity Sanitary Sewer Section 00300-004 Fiber-Reinforced Polymer Mortar Pipe Section 00300-006 Sanitary Sewer Manholes Section 00300-007 Polymer Concrete Manholes Section 00300-008 Glass-Fiber Reinforced Polymer Manholes Section 00300-009 Sanitary Sewer Service Laterals and Reconnections Section 00300-010 Non-Metallic Ring and Cover for Sewer Manholes Section 00300-011 Sewer Line and Manhole Testing Section 00300-012 Cleaning and CCTV Section 00300-025 Protective Coating of Sewer Structures

Section 00400 Storm Water Systems Section 00400-001 Storm Sewer Junction Boxes, Manholes and Inlets Section 00400-002 Reinforced Concrete Pipes Section 00400-004 Safety End Treatment Section 00400-007 Concrete Slope Paving & Riprap

CITY OF CONROE – ENGINEERING

Gravity Sewer Upgrades – SH 105 West-LaSalle to Highland Hollow

Project No. 2024-20 ii

TxDOT Specifications Refer to 2024 TxDOT Specification Book or the latest version of the specifications listed below. Also, refer to TxDOT Specification Book for other related Items not listed here.

Item 104 Removing Concrete Item 110 Excavation Item 132 Embankment Item 360 Concrete Pavement Item 400 Excavation and Backfill for Structures Item 496 Removing Structures Item 502 Barricades, Signs and Traffic Handling Item 512 Portable Traffic Barrier

Technical Specifications Summary of Work

Summary of Works Page 1 of 3

SUMMARY OF WORK

1.0 GENERAL

1.1 SCOPE

A. This project consists of the installation of approximately 1370 LF of 18-inch gravity sewer, approximately 4055 LF of 30-inch gravity sewer as well as trenchless installation of approximately 1350 LF of 42-inch steel casing with 30-inch gravity sewer. The installation of approximately 24 new manholes in the TxDOT ROW. There will be some utility relocations as well as the abandonment and removal of the existing gravity sewer and existing manholes.

B. Furnish all labor, supervision, tools, equipment and materials per drawings and specifications to complete the required work. Provide all necessary equipment, connections and special items necessary to accomplish the work shown or specified even if such items are not specifically specified or shown on the drawings. Install all items provided in accordance with the specifications, the manufacturer's recommendations and the best practices of the trades involved.

C. Assume full responsibility for the means, methods, techniques, sequences, and procedures of construction to complete the project. Implement all safety measures and precautions per governing regulations, incidental to the related works. Provide, connect, test and supervise the installation of the equipment specified under the direct supervision of qualified personnel.

1.2 DESCRIPTION OF WORK

A. The following paragraphs describe the major components of the work to be completed under this Contract. This list shall not be construed as all-inclusive and shall not waive the Contractor’s responsibility to provide all necessary components of the project, either stated or implied, in full accordance with the drawings and specifications.

1) TxDOT Permitting, Agreements, Coordination, etc.

a) TxDOT notification and Traffic Control requirements.

b) City will obtain TxDOT UIR/RULIS permits prior to construction.

c) Contractor to obtain their own Traffic Control Plan permit from TxDOT.

d) Implement TCP per approved plans and conform to TMUTCD guidelines.

e) Install and maintain temporary traffic control devices to protect the work zone, traffic and public per TMUTCD guidelines and standard TCP details shown on the plans.

f) No Road closures will be allowed.

g) Contractor to maintain access to all properties during construction.

2) Temporary sediment and erosion controls shall be provided, installed, maintained, and removed by the contractor as necessary to prevent sediment from reaching storm drains, roadside ditches, culverts and creeks.

3) Clearing and grubbing of ROW and easement per plans and/or as directed by the Engineer.

a) Contact the project inspector prior to clearing operations.

Summary of Works Page 2 of 3

b) Contractor must stake the limits of clearing and provide silt fence or something similar to clearly delineate the limits of clearing

c) No clearing outside of easement including stockpiling of dirt piles, equipment, materials and any items that negatively affect the existing critical root zones of trees to remain.

4) Sewer line Construction

a) Approx. 1370 LF of 18-inch and 4055 LF of 30-inch will be placed by Open Cut and approx. 1250 LF if 30-inch will be using trenchless construction and encased in 42-inch steel casing.

b) Locations requiring trenchless construction are shown on the plans.

c) Reconnect all existing sewer services to properties. Coordinate with property and business owners prior to starting work.

d) New sewer line and connections shall be tested in accordance with the project specifications.

e) Existing sewer lines to be removed or abandoned as shown on the Plans.

f) Necessary grading, backfill (cement stabilized sand and select fill), pavement cut and restoration are included in the unit price for sewer line.

5) Manhole Installation

a) Contractor will install approximately 24 new manholes as shown on the plans.

b) All manholes will have a non-metallic rim and cover and will be sealed.

c) Some of the manholes will be adjustable depth as noted on the plans

6) Waterline Installation

a) Field verify all existing utilities prior to construction. Contractor is responsible for determining the horizontal and vertical location of all existing utilities prior to construction. Protect existing utilities. Contractor shall be responsible for any repairs to existing utilities due to damage incurred during construction.

b) The contractor is allowed to select the means and method of construction, provided that appropriate pipe material and joints meet City standards.

c) Waterline crossing under roadways and driveways shall be trenchless or as shown in the plans.

d) Install water valves per plans and as directed by the Engineer.

e) Existing waterlines are to be removed or abandoned as needed.

f) Approximately 500 linear feet of 8-inch waterline

g) Necessary grading, backfill (cement stabilized sand and select fill), pavement cut and restoration are included in the unit price for waterline.

h) Reconnect all existing water services (domestic water, fire water, and irrigation) to properties. Coordinate with property and business owners prior to starting work.

Summary of Works Page 3 of 3

i) New waterline and connections shall be tested in accordance with the project specifications.

7) Bypass Plan

a) The contractor is required to provide a signed and sealed bypass plan. We have provided a phasing plan and layout included in the plans that could be used as the base of the bypass. While this is the preferred process for the city, contractor is able to select a different bypass phasing.

1.3 SITE ACCESS

A. Work area will be within TxDOT ROW, City ROW and Easement.

B. Coordinate with the property owners as needed to complete the work as shown in the plans.

C. No interruption to the existing services is allowed.

D. City work hours (Monday-Friday 730am to 530pm)

1.4 COORDINATION AND NOTIFICATIONS

A. Contractor shall coordinate with the public for reconnections.

B. Contractor shall coordinate with City Public Works Department for utility location or any interruptions well as contacting 811.

C. Contractor must coordinate with City of Conroe for any taps to the City water distribution systems where we are relocating the Waterline.

D. Provide 48-hour notice to affected property owners prior to water outage.

2.0 PRODUCTS

Not used.

3.0 EXECUTION

Not used.

* END OF SECTION *

Technical Specifications Street Rehab-East Semands

Special Notes Page 1 of 2

SPECIAL NOTES

1. Weekend Work Schedule Contractor is allowed to work on Saturdays. However, he/she must notify the City on or before Thursday for scheduling. Working on Sundays will not be allowed, excluding in extenuating circumstances and must have written permission from the City.

2. Contractor shall provide surface protection or matting along the temporary access shown on the plan, the cost of which is incidental to the related tasks.

3. All products, materials, and shop drawings must be approved by the City prior to construction.

4. The Contractor shall submit daily reports, along with quantities of materials used, and material receipts, with reference to bid items, as applicable.

5. Contractor’s Project Superintendent shall be capable of communicating in English (verbal and written) fluently and must be available on the project at all times when work is being performed, including subcontractor’s work. The Superintendent must be available and on-call 24 hours a day.

6. Roadside ditch to remain shall be maintained and cleaned to have a positive drainage. Ditch cleaning will be considered subsidiary to other items, unless a separate pay item is included in the bid.

7. All roadway constructions shall maintain positive drainage by means of temporary ditch or swale.

No ponding is allowed on stabilized subgrade or base. If pavement structure fails due to surface water ponding, the Contractor shall repair or replace the pavement structure as directed by the Engineer.

8. Construction of items that are not specifically addressed by the City of Conroe standards and specifications shall be in accordance with the TxDOT Standard Specifications for Construction and Maintenance of Highways, Streets and Bridges (latest version).

9. The Contractor will be responsible for any damage resulting from negligence. The Contractor will take the necessary steps to prevent these occurrences and damage to Owner’s property or adjacent properties.

10. The City has the first option to retain any salvageable materials or reject all excess materials.

Materials that are not retained by the City shall become the property of the Contractor. The Contractor shall properly dispose of all excess materials off site in an approved manner.

11. Implement proper traffic control plans during construction and install all necessary signs, controls, barriers, flaggers, etc. as needed for a safe construction zone.

12. Cover work zone signs when work related to the signs is not in progress, or when any hazard related to the signs no longer exists.

13. Final cleanup, unless shown as a separate proposal item, will be considered subsidiary to the related items. Final cleanup shall include removal of all surplus materials, debris, and necessary final grading fully restoring the site to the original or better condition.

14. No monetary claims shall be made for adverse field conditions, and/or natural disasters, but time extension for delays may be approved. Rain days must be requested with each pay application each month.

Technical Specifications Street Rehab-East Semands

Special Notes Page 2 of 2

15. Contractor shall work within the limits of the right of way or easements shown on the plans. No work shall be performed outside the ROW or the easements without the Right of Entry Letter on hand.

16. All materials or products shall be domestic (made in USA) unless otherwise approved by the City.

Submittal must include a certification from product manufacturer or supplier.

17. Contractor shall notify affected residents or businesses 48-hours in advance of any construction activities. Driveway access to businesses shall remain open all the time. Contractor shall notify residents using door hangers or other suitable approved method.

18. Water usage – this project is covered under City’s Capital Improvement Program (CIP) and water usage fees will be waived. Setup a service account for water with the City’s Utility Billing Department (936-522-3175). Hydrant meter must be installed with a backflow preventer at the nearest fire hydrant from the job site. The Contractor shall carry water from the source of supply to the job site.

Technical Specifications Project Submittals

Section 00100-001 Page 1 Revised 2/5/2024

Section 00100-001

PROJECT SUBMITTALS

1.0 GENERAL

1.1 This section covers documents required for all Capital Improvement Projects prior to construction, during the construction and all deliverables once the project has been completed.

2.0 EXECUTION

2.1 PRIOR TO BEGINNING WORK

Submit the following items with signed agreement forms as a prerequisite to the approval of the Agreement between the Contractor and the City.

A. Performance Bond B. Payment Bond C. Certificates of Insurance D. List of Subcontractors E. Overall Project Schedule F. Calculations, Shop Drawing, Product Data and other information as requested by the City

2.2 DURING CONSTRUCTION

As the project progresses, submit following items in a timely manner:

A. Updated Schedules – if applicable, update project schedules as the project progresses.

B. Schedule Format – provide schedule in Microsoft Project format (preferred) that includes all activities and duration with start and finish dates.

C. Daily Reports – submit daily reports for the entire week, in pdf format, on every Monday or on the first business day.

D. Schedule of Values – submit cost breakdown for all Lump Sum items in the proposal form

E. Payment Application – Submit monthly application on or before the 25th day of each month for timely approval by the City Council

F. Request for Information (RFI) – submit RFI using City’s standard form when a clarification on plan is required or when an alternate method, alignments, designs are proposed.

G. Proposal for Change Order – the Contractor may submit a request for change order whenever a need arises. Contractor must go through an RFI process for any change order to be considered by the City. The request must be in writing and must include sufficient information to assess the need for a change in the work, the contract time or the contract amount.

2.3 PROJECT CLOSEOUT & DELIVERABLES

Once construction has been substantially completed, submit the following items before the final payment including retainage amount is released.

A. Statement of Substantial Completion and Request for Initial Certification

B. Letter of guarantee for one-year with Maintenance Bond (5% construction cost) or Performance Bond extended to One-year after completion, issued by a Surety Company that is licensed in the state of Texas and is in good standing.

C. Consent of Surety Company to Final Payment

D. General Contractor’s Affidavit and Release

Technical Specifications Project Submittals

Section 00100-001 Page 2 Revised 2/5/2024

E. As-built drawings (redline drawings)

F. Letter of compliance with the law for Prevailing Wage Rates

G. Request for Substantial Completion

H. Proof of returned water meter to the Utility Billing, if applicable

*END OF SECTION*

Technical Specifications Shop Drawings

Section 00100-002 Page 1 Revised 3/22/2022

Section 00100-002

SHOP DRAWINGS

1.0 GENERAL

1.1 This section covers shop drawings, product data and samples that shall be submitted to the Engineering.

2.0 REQUIREMENTS

2.1 All materials and product must be submitted to the City for review and approval prior to construction. Products or materials used without the prior approval will be rejected and must be replaced at no additional cost to the City.

2.2 Submit shop drawings, product data, and samples required by specifications and as requested by the Project Manager.

2.3 All shop drawings, and submittal data shall be in the English language, and all dimensions, weights, capacities and other measurements shall be expressed in the Standard English system of measurements. All standards and standard specifications (i.e., ACI, AISC, NEC) referenced shall be those customarily in use in the United States.

3.0 EXECUTION

3.1 Transmittal Letter/Submittal form – include transmittal/submittals form and indicate the product or material name for which approval is being requested. Indicate sequential submittal number, project title, name (s) of contractor and sub-contractors, if applicable.

3.2 Shop Drawings – shop drawings shall show sufficient details for all structural, mechanical and electrical work as applicable. Stations and elevations shall be referenced to the construction plans.

3.3 Product Data – submit manufacturer’s catalog sheets, brochures, diagrams, schedules, performance charts illustrations, and other descriptive data clearly marked to identify pertinent materials, products or models proposed for the project. Indicate all applicable reference standards such as ASTM, ACI etc.

3.4 Calculations and Drawings – calculations and drawings, when required, must be signed and sealed by a professional engineer registered in the State of Texas.

3.5 Place on the data sheet(s) all information required for submission or include the required information on separate sheet(s), or on the transmittal letter.

3.6 Product Samples – when required by specifications, submit product samples of sufficient size and quantity to illustrate clearly the functional characteristics of product or materials with integrally related parts and attachment devices; and full range of color samples.

3.7 Prepare and install field samples and mock-ups at the project site in an acceptable location when required by specifications.

3.8 Format – all submittals must be in color pdf format. All texts and drawings must be legible.

3.9 Submit via email or use appropriate electronic transmittal methods.

4.0 REVIEW & APPROVAL

4.1 City’s Project Manager and Inspector will review and process all submittals within ten (10) business days.

4.2 All submittals marked “REJECTED” must be resubmitted with corrected information.

4.3 Products submittals marked “APPROVED AS NOTED” must be installed as noted.

Technical Specifications Construction Schedule

Section 00100-003 Page 1 Revised 3/22/2022

Section 00100-003

CONSTRUCTION SCHEDULE

1.0 GENERAL

1.1 This section covers preparation and submittal of construction schedule to insure adequate planning and execution of construction activities within the Contract time.

2.0 EXECUTION

2.1 Construction schedule must include Construction Activities, duration, start and finish date and precedence.

2.2 Schedule must identify construction activities or tasks that include but are not limited to the following:

a) Major proposal items and related activities

b) Items requiring long lead-time to order/manufacture such as equipment parts, motor/machinery or pre-fabricated items

c) Items requiring engineering design/calculations and shop drawings

d) Initial acceptance inspection and addressing punch list items

e) Final inspection and deliverable submittals

3.0 Submittals

3.1 Submit construction schedule within ten (10) days of Notice to Proceed.

3.2 Format – Microsoft Project or similar format showing Activities, duration, Start/Finish dates, precedence and Gantt Chart

3.3 Submit one (1) pdf copy of construction schedule and a copy of schedule file (.mpp), if using MS Project.

3.4 Submit revised/updated schedule when rain days or time extensions are approved by the City.

Rain days and time extensions must be approved separately by the City.

Technical Specifications Trench Safety System

Section 00100-004 Page 1 Revised 3/22/2022

Section 00100-004

TRENCH SAFETY SYSTEM

1.0 DESCRIPTION

1.1 This Section is for furnishing all labor and materials for installation and maintenance of a trench safety system.

1.2 For any trench excavation other than in solid rock, greater than five (5) feet in depth, the

Contractor shall provide a trench safety system. This trench safety system shall be in accordance with the appropriate requirements established in the Occupational Safety and Health Administration (OSHA), Safety and Health Regulations, Part 1926, Subpart P, as published in the Federal Register, Volume 54, Number 209, dated October 31, 1989, and the City of Conroe Ordinance #1033-87, or latest revisions - "Excavations, Trenching and Shoring" (latest edition).

1.3 Before commencing any trench excavation, which will exceed a depth of five feet, Contractor will provide Owner with detailed plans and specifications regarding the safety systems to be utilized. Said plans and specifications shall include a certification from a registered professional Engineer, licensed in the State of Texas, indicating full compliance with the OSHA provisions.

2.0 EXECUTION

2.1 Trench Safety System

The trench safety system shall be constructed and maintained in accordance with OSHA 2226, Trench Safety Details and Specifications, to prevent death or injury to personnel or damage to structures in or near these trench excavations.

2.2 Supervision

The Contractor shall provide competent supervisory personnel at the trench, while work is in progress to ensure that the Contractor's methods, procedures, equipment and materials pertaining to the safety systems of this item, are sufficient to meet the requirements of OSHA Standards and Regulations.

2.3 Maintenance of Safety System

The safety system shall be maintained in the acceptable condition, or as specified by the Contractor's Registered Professional Engineer. The Contractor shall take all necessary precaution to ensure that the safety systems are not damaged during their use. If, at any time during its use, a safety system is damaged, personnel shall be immediately removed from the trench or excavated area and the safety system repaired. The Contractor shall take all necessary precautions to ensure that no loads, except those included in the safety system design, are imposed on the excavation.

2.4 Inspection

The Contractor shall make daily inspections of the Trench Safety Systems to ensure that the system meets OSHA requirements. Daily inspection is to be made by a "competent person" provided by the Contractor. If evidence of possible cave-ins, or slides, is apparent, all work in the trench shall cease until the necessary precautions have been taken by the Contractor to safeguard personnel entering the trench. It is the sole duty, responsibility and prerogative of

Technical Specifications Trench Safety System

Section 00100-004 Page 2 Revised 3/22/2022 the Contractor, not the Owner or the Engineer, to determine the specific applicability of the designed trench safety systems to each field condition encountered on the project. The Contractor shall maintain a permanent record of daily inspections.

2.5 Indemnification:

The Contractor shall indemnify and hold harmless the City, its employees and agents, including the Engineer, from all damages, costs (including, without limitation, legal fees, court costs and the cost of investigation), judgments or claims by anyone for injury or death of persons resulting from the collapse or failure of trenches constructed under this contract.

3.0 MEASUREMENT & PAYMENT

3.1 Measurement will be per linear foot along the centerline of trench. Unit price is full compensation for furnishing all equipment, labor, materials, superintendence, and incidentals.

Technical Specifications Control of Ground and Surface Water

Section 00100-005 Page 1 Revised 3/22/2022

Section 00100-005

CONTROL OF GROUND AND SURFACE WATER

1.0 GENERAL

1.1 This section shall govern means, methods, techniques, sequences and procedures of construction to install wellpoint-dewatering system to facilitate construction of underground utilities and surface water control.

1.2 Install properly designed dewatering system to:

1) Reduce the groundwater static level to reduce effectively, the lateral forces on excavation shoring from either hydrostatic pressures or lateral forces.

2) Reduce the groundwater static level to provide stable excavation subgrade.

3) Prevent failure or heaving from the bottom of excavations.

4) Direct surface water away from the excavation or eliminate the surface water, as a potential problem.

1.3 Dewatering system shall be installed with filter bags at the discharge end of pipe to collect suspended sand and silt.

2.0 REFERENCES

2.1 Federal Regulations, 29 CFR Part 1926, Standards-Excavation, Occupational Safety and Health Administration (OSHA).

2.2 Federal Register 40 CFR (Vol. 55, No. 222) Part 122, EPA Administered Permit Programs (NPDES), Paragraph 122.26(b)(14) Storm Water Discharge.

3.0 SUBMITTALS

3.1 Submittals shall conform to the requirements of Section 00100-001 and Section 00100-002.

3.2 Submittals shall include following:

1) Dewatering equipment – pumps, onsite power generator, pipes, dewatering bags etc.

2) Dewatering Bag – include size, flow rate, sediment capacity and other relevant information.

3) Schematic layout or drawing for dewatering system

4.0 CONSTRUCTION

4.1 Groundwater control

1) Install well points to lower the piezometric water level to a point that will allow excavation to proceed in a workable and safe condition (normally 2 to 3 feet below subgrade).

2) Implement and operate dewatering system few days or longer before excavation begins.

3) Install dewatering wellpoints outside the limits of excavations to allow enough workspace for excavation.

4) Conduct daily maintenance and observation of the ground water control system.

5) Replace inoperable or damaged system components as necessary to maintain operation.

6) Keep monitoring system piping accessible for observation.

Technical Specifications Control of Ground and Surface Water

Section 00100-005 Page 2 Revised 3/22/2022

7) Remove trapped sand/silt from the filter bags and maintain as necessary.

4.2 Surface water control

1) Intercept surface water and divert it away from excavations. This includes temporary works required to protect adjoining properties from surface drainage caused by construction operations.

2) Divert surface water and seepage water into sumps and pump it into drainage channels, settling basins or storm drains.

5.0 MONITORING

5.1 Monitor water elevation daily to evaluate performance of the dewatering systems. Visually monitor discharge from dewatering systems for the first few days to determining if soil particles are being removed by the systems.

5.2 If soil particles are being pumped beyond first 12 hours well must be redeveloped, tested or plugged properly.

6.0 MEASUREMENT & PAYMENT

6.1 Trench dewatering will be measured by the linear foot along the centerline of the utility being installed or unit of measure shown in the bid form and regardless of the duration of dewatering operation. Unit price is full compensation for designing dewatering system, dewatering plan, labor, materials and equipment and incidentals.

Technical Specifications Clearing & Grubbing

Section 00100-006.docx Page 1 Revised 6/4/2024

Section 00100-006

CLEARING & GRUBBING

1.0 SCOPE

1.1 This Seciton includes removal and disposal of vegetation including trees, stumps, brush, roots, vegetation, logs, stripping of topsoil, tree pruning within the project site or other designated areas unless otherwise noted.

2.0 EXECUTION

2.1 Clearing – Remove trees, brush, vines, stumps, roots, rubbish or other objectionable matter from the designated areas.

2.2 Grubbing – Remove all stumps and roots in excavation areas and all roots and stumps to depth of 2-feet below original ground elevation in fill areas.

2.3 Preservation

1) Take special care to not damage trees, brush and vegetation designated for preservation within or outside the limits of the temporary and permanent easements. The Contractor shall not disturb any areas designated for preservation on the Drawings or as directed by the Owner or his authorized representative. The Contractor shall be responsible for any costs resulting from damage to same.

2) The Contractor is not required to remove all trees within the temporary construction easement and is requested to preserve as many trees in this area as possible. Any preservation trees that are damaged shall be treated immediately by removing damaged branches and patching skinned areas with an approved sealer. (Paint and tar shall not be used.) Trees that die for any reason in the one year maintenance period shall be removed and disposed of in accordance with this specification, with a method that causes minimal damage to surrounding trees.

3) Do not store materials or park equipment over the root zone (under the branch canopy) of any tree which has been designated for preservation or has over half of its trunk outside of the easements.

2.4 Removing Material

1) Unless otherwise specified, cleared and grubbed material becomes the property of the contractor and shall be removed from the work site or disposed of in a manner not to damage the Owner.

2) Removal and disposal shall be completed at no extra cost to the Owner at a permitted facility within all federal, state and local rules, regulations, laws and ordinances. Organic material may be mulched and returned to the surface of the easement after excavation, backfill and final grading are complete.

3.0 MEASUREMENT & PAYMENT

A. Clearing and grubbing will be measured by the acre; by the 100-ft station regardless of the width of right of way or the easement; or by each tree removed. Clearing and grubbing will be paid at the unit price bid as shown on the proposal.

B. Unit price bid for clearing and grubbing is full compensation for furnishing labor, materials, equipment, and incidentals required to complete the task as specified herein.

Technical Specifications Preparation of Construction Zone

Section 00100-007 Page 1 Revised 3/21/2022

Section 00100-007

PREPARATION OF CONSTRUCTION ZONE

1. GENERAL

Preparation of Construction Zone consists of Right-of-Way (ROW), utility easement, combination utility easement, and/or temporary construction easement where infrastructure work and improvements shall be performed by the contractor. Preparation shall consist of mobilization, equipment staging, temporary construction zone signs, barricades, flagging, staking, material storage or any in no particular order to clear, grub, and strip the land.

2. MATERIALS

The contractor may use equipment and materials necessary to properly prepare the construction zone and shall be considered a subsidiary item in the proposal.

3. EXECUTION

Contractor shall leave work zone ready in a manner to commence Section 00100-006 Clearing and Grubbing.

4. MEASUREMENT AND PAYMENT

Preparation of Construction Zone shall be incidental to the related works unless shown as separate bid item. When shown as separate bid item, the work under this section will be measured and paid by the lump sum.

Technical Specification Waste Material Handling and Disposal

Section 00100-008 Page 1 Revision 3/21/2022

Section 00100-008 Waste Material Handling and Disposal

1.0 GENERAL

1.1 Scope

This Section shall govern the requirements for handling, testing and disposal of hazardous non-hazardous waste material. Waste material shall include but are not limited to following:

A. Material present inside of existing tanks to be repaired or demolished, i.e., silt, sludge and other residue deposits generated by normal water production usage of the tanks.

B. Coatings removed from existing structures, tanks, piping etc.

C. Spent abrasives used and debris generated during surface preparation for coating.

D. All spent thinners, coating materials or other products brought on site for execution of work that require disposal as a hazardous or non-hazardous waste.

E. Soil that may be contaminated due to the execution of the work or existing contaminated soils identified in the project plans.

F. Petroleum soaked sand foundation material removed from demolished tank sites.

1.2 References

The following is a list of applicable requirements to this project. It is not intended to be a complete listing of all laws and regulations to which the Contractor must comply.

A. Environmental Protection Agency - Code of Federal Regulations

1) 40 CFR Part 261 - Identification and Testing of Hazardous Waste

2) 40 CFR 261 Toxicity Characteristic Leaching Procedure, SW-846.

3) 40 CFR Part 262 - Standards Applicable to Generators of Hazardous Waste

4) 40 CFR Part 263 - Standards Applicable to Transporters of Hazardous Waste

5) 40 CFR Part 264 - Standards for Owner and Operators of Hazardous Waste

Treatment, Storage and Disposal Facilities

6) 40 CFR Part 265 - Interim Status for Owners and Operators of Hazardous Waste

Treatment, Storage and Disposal Facilities

7) 40 CFR 265, Subpart C EPA - Preparedness and Prevention

8) 40 CFR 265, Subpart D EPA - Contingency Plan and Emergency Procedures

9) 40 CFR 265.16 EPA - Personnel Training

10) 40 CFR Part 268 - Land Disposal Restrictions

11) 49 CFR Parts 173,178 and 179: (USDOT/ Hazardous Materials, Shipping, Containers.)

12) 40 CFR Part 355 - Emergency Planning and Notification

B. EPA Methods

1) 3050B - Acid Digestion of Sediment, Sludge, and Soils

2) SW 846 - Test Methods for Evaluating Solid Waste - Physical/Chemical Methods

3) Texas Commission on Environmental Quality TAC Title 30, Chapter 305

"Consolidated Permits"

Section 00100-008 Page 2 Revision 3/21/2022

4) TAC Title 30, Chapter 335 "Industrial Solid Waste and Municipal Hazardous Waste”

5) TWC Technical Guidelines

6) Document #1, Waste Evaluation/Classification

7) NIOSH Methods 7082 Lead

8) Guide 6 - Guide for Containing Debris Generated During Paint Removal

Operations

9) Guide 7 - Guide for the Disposal of Lead Contaminated Surface Preparation Debris

1.3 Submittals

A. Submittals shall conform to the requirements of Section 00100-001.

B. Submittals shall conform to appropriate codes for regulatory requirements.

C. Obtain and submit disposal permits for proposed disposal sites, if required by local ordinances.

1.4 Testing and Identification

A. The Contractor shall manage and ensure that all testing, handling, storage, transportation, and disposal requirements are properly implemented, including satisfactory training of job site personnel and the cleaning of all reusable items and equipment prior to removal from the site.

B. If prior test results are not available, the Contractor shall properly test and determine if any wastes generated as a result of this project are hazardous in accordance with 40 CFR Part 261.

1.5 Definition (Note: Definitions applicable to this section are also presented elsewhere)

A. Hazardous Waste (lead paint debris): Waste that is classified as hazardous due to its concentrations of regulated hazardous substances. Paint debris is classified as hazardous waste if, after testing by the Toxicity Characteristic Leaching Procedure (TCLP), the leachate contains any of the 8 metals or other substances in concentrations at or above limits established in 40 CFR 261.

B. Lead Containing Dust and Debris: Dust and debris generated during the project which contains lead in any amount, including but not limited to pulverized paint, spent abrasive, filters (wet and dry), and containment materials upon which lead is still present.

C. RCRA: Resource Conservation and Recovery Act. Federal law pertaining to hazardous waste management. EPA implementing regulations are contained in 40 CFR 240-280.

D. TACB: Texas Air Control Board. Texas State Agency joined into the TCEQ and responsible for writing and enforcement of rules and regulations relating to air quality.

E. TCEQ: Texas Commission on Environmental Quality. State of Texas Commission responsible for planning, oversight, monitoring and management of natural resources.

F. TCLP: Toxicity Characteristic Leaching Procedure. Laboratory tests conducted on wastes that determine the amount of hazardous materials that leach out into a test solution. The test is intended to simulate the properties of water as it leaches through a solid waste landfill. TCLP testing is defined in 40 CFR 261.24.

G. TWC: Texas Water Commission. Texas State Agency joined into the TCEQ and responsible for writing and enforcement of rules and regulations relating to water quality and solid waste programs.

Section 00100-008 Page 3 Revision 3/21/2022

2.0 EXECUTION

2.1 Material Handling and Storage

A. All chemicals to be used in the project shall be stored and used in a safe and proper manner in accordance with all applicable Federal, State and local laws and regulations as well as the manufacturer’s recommendations. Safety Data Sheets (SDSs) shall be maintained on-site for all hazardous chemicals used.

B. Hazardous wastes shall be handled and stored according to the requirements of TAC 30 Chapter 335 "Industrial Solid Waste and Municipal Hazardous Waste" and 40CFR Part 262, with regard to on-site storage, and 40CFR Part 264 with regard to required notices, site security, personnel training, contingency planning and emergency procedures, recordkeeping and reporting, time of storage, amount of material stored, and use of proper containers. Hazardous waste will be stored in covered containers in accordance with the requirements of 40 CFR 262 and 49 CFR 172,178 and 179.

C. The contractor shall provide proper, segregated storage for hazardous and non-hazardous materials to be used in the work area in order to ensure safe work conditions.

D. All material, waste and debris from removal of lead containing coatings, including those products and materials employed for chemical paint stripping, shall be considered hazardous waste and handled accordingly, until such time that testing and analysis indicates otherwise.

1) Sampling of materials for TCLP testing of initial containers of debris shall be completed prior to or during filling. Until the TCLP test results are received, the containers shall be labeled as lead-containing debris. Hazardous waste labels shall be applied after the test results are received, if the debris tests hazardous.

2) Hazardous waste shall not be stored at the project site for more than 90 days. Non-hazardous wastes shall be removed at a minimum of once per month (30 days).

3) Special attention shall be given to the time of storage, storage conditions, amount of material stored at any one time, use of proper containers, and personnel training.

E. Hazardous waste shall be placed on pallets over protected ground, be located in a secure area enclosed by a fence with signs around the perimeter, and be shielded adequately to prevent dispersion of the waste by wind or water. Under no circumstances shall the waste be stored within a flood plain area. Any evidence of improper storage shall be cause for immediate shutdown of the project until corrective action is taken. The storage area shall be within a security fence with a locked gate.

2.2 Environmental Contamination

A. The contractor shall not contaminate the air, soils or surface and ground waters with any hazardous waste. Spills, releases and discharges of hazardous or toxic materials which inadvertently occur shall be reported in accordance with 40 CFR 265 and TAC 30 Chapter 343.

B. Contingency Plan and Training: The Contractor shall comply with TCEQ Title 30 Regulations and EPA 40 CFR 265, Subpart C in the event of a spill or release of waste, EPA 40 CFR 265 Subpart D, and TCEQ regulations.

Section 00100-008 Page 4 Revision 3/21/2022

C. All personnel associated with the handling of hazardous waste shall complete a formal training program in accordance with 40 CFR 265.16 and TCEQ Title 30 Regulations. Training records of all employees must be maintained and kept on file.

2.3 Waste Classification

A. Testing

1) All personnel associated with the handling of hazardous waste shall complete a formal training program in accordance with 40 CFR 265.16 and TCEQ Title 30 Regulations.

Training records of all employees must be maintained and kept on file.

2) In the case of wet methods of preparation, the use of chemical strippers, or containerized hygiene water, all liquids and sludge shall also be tested. When chemical strippers are used, the testing shall include pH to determine corrosivity. All waste water shall be tested for total lead.

3) Representative samples of the debris for each waste stream generated from the work on this project shall be collected. A minimum of four of the representative samples of each waste stream shall be analyzed to establish a waste is non-hazardous. Note that more than four initial samples of each waste stream shall be collected in order to obtain the four representative samples for analysis. Results from one test sample are sufficient to identify a waste as hazardous.

4) The collection of the initial representative samples of each waste stream and selection of the minimum of four for testing shall be accomplished using a random sampling technique and shall comply with the following: a minimum of one representative sample for each 55 gallons of waste, or a minimum of four representative samples for each gondola or roll-off box of waste. Samples shall be collected in accordance with SW-846, "Test Methods for Evaluating Solid Waste - Physical/ Chemical Methods".

5) Sampling and testing shall be performed by a certified laboratory acceptable to the Owner. The name, address, and qualifications of the laboratory shall be provided for approval. The Owner shall be provided with copies of the test results as soon as they are received by the Contractor.

B. Classification

1) Lead paint debris is classified as hazardous waste if, after testing by TCLP, the leachate contains any of the 8 metals or other hazardous substances in concentrations at or above limits established in 40 CFR 261:

Arsenic 5.0 mg/L

Barium 100.0 mg/L

Cadmium 1.0 mg/L

Chromium 5.0 mg/L

Lead 5.0 mg/L

Mercury 0.2 mg/L

Section 00100-008 Page 5 Revision 3/21/2022

Selenium 1.0 mg/L

Silver 5.0 mg/L

2) The above includes only the eight (8) characteristic metals listed by EPA among which are elements typically associated with paints. Other substances may be present which may cause debris to be classified as hazardous waste as defined in 40 CFR 261 (such as a pH <=2.0 or >=12.5 resulting in corrosivity), and must be considered.

2.4 Disposal

A. The contractor shall arrange to have wastes and debris transported from the site in accordance with all City Ordinances and State and Federal Laws. If wastes and/or debris is determined to be hazardous, transporting to be in accordance with TAC 30 Chapter 335 -Industrial Solid Waste and Municipal Hazardous Waste, 40CFR Part 263 - Standards Applicable to Transporters of Hazardous Waste and the applicable sections of 49 CFR Parts 171 through 179.

B. Manifest and Reporting: The Contractor shall comply with all of the manifesting, certification, and reporting requirements of EPA 40 CFR 262, 40 CFR 268, and Texas regulations, including certificates of final disposal for each shipment.

C. Copies of all records and reports, test sample chain of custody forms, TCLP and other test results shall be provided to the Owner.

D. The contractor shall dispose of wastes and debris at a licensed site acceptable to the Owner.

Hazardous wastes and debris shall be disposed of in accordance with 40CFR Part 265 and 40CFR Part 268 Land Disposal Restrictions. Manifesting of hazardous wastes shall be in accordance with 40CFR Part 262, Subpart B.

E. Waste water resulting from surface preparation, washing, personal hygiene or decontamination shall not be discharged without testing and through arrangement with the local Publicly Owned Treatment Works (POTW) or other approved means.

3.0 MEASUREMENT & PAYMENT

3.1 Work under this Section will not be measured separately for payment and will be incidental to the related items.

3.2 Payment for hazardous waste material handling, removal, testing, transporting and disposal of material identified as hazardous after the bid date will be paid for at the unit price bid for "Hazardous Waste Handling, Removal, transporting" if such an item is provided in the contract.

3.3 Removal and disposal of potentially petroleum-soaked sand foundation material will be measured per cubic yard which shall include testing, removing, storing, transporting and disposing of material and will be paid for at the unit price bid for "Removal and Disposal of Potentially Petroleum Soaked Sand". Basis of payment will be Class I Industrial Waste having a Total Petroleum Hydrocarbon (TPH) level greater than 1500 ppm.

Technical Specification Sodding for Erosion Control

Section 00100-015 Page 1 Revised 3/22/2022

Section 00100-015

SODDING FOR EROSION CONTROL

1.0 GENERAL

1.1 Scope

A. This section shall govern requirements for furnishing and installing grass block sod and necessary watering to promote vegetation.

1.2 Submittals

A. Submittals shall be per Section 00100-001

B. Provide product information including source or supplier of block sod, grass type etc.

C. Provide copies of delivery tickets showing quantity and type of sod delivered to each project site.

2.0 PRODUCTS

2.1 Block Sod

1) Provide Bermuda grass or St. Augustine block sod or matching type grass sod for rehabilitation projects, unless otherwise approved by the City.

2) Block sod must be live, green and growing at the time of delivery and installation. Root system must be dense and healthy and top growth free of thatch.

3) Sod shall be free of weeds, disease or harmful insets.

4) Sod shall be cut in uniform panels and shall support their own weight during handling.

Block sod with uneven cut ends, broken or torn panels or with dried roots will not be accepted.

2.2 Staples

1) Provide staples for sodding on sloped areas with slopes steeper than 3:1 (H:V) or as shown on the plans.

2) Staples shall be minimum 11 gauge, 6”x1”x6” U-Shaped staples or as shown on the plans.

3.0 EXECUTION

3.1 Preparation

1) Grade, rake and remove undesirable organic or inorganic materials, including stones, hard clay lumps or other debris. Place top soil when specified or as directed before placing sod.

2) Lightly sprinkle the area receiving sod and place sod panels tightly together in a row with staggered lateral joints.

3) When specified, place two staples at diagonal corners of each panel.

Technical Specification Sodding for Erosion Control

Section 00100-015 Page 2 Revised 3/22/2022

3.2 Maintenance

1) Maintain newly install sod grass by watering until the vegetation is adequately established.

Fertilize the sod grass as necessary to establish grass cover.

2) Sod grass coverage will be verified by the City’s Inspector prior to acceptance of the project.

Replace dry sod areas at no cost to the City.

4.0 MEASUREMENT & PAYMENT

4.1 Sodding will be measured by the squared yard complete in place. Unit price is full compensation for furnishing sod and installing sod, materials, including watering, fertilizing, labor, equipment, tools, and incidentals. Watering and fertilizer will not be paid for directly but will be subsidiary to this item.

Technical Specification Hydromulch Seeding

Section 00100-016 Page 1 Revised 3/22/2022

Section 00100-016

HYDROMULCH SEEDING

1.0 GENERAL

1.1 Scope

A. This section shall govern furnishing labor, materials, equipment, tools, and performing all work necessary for topsoiling, smoothing, seeding, fertilizing, watering, maintenance, and cleanup of all areas disturbed during construction.

1.2 Submittals

A. Submittals shall be per Section 00100-001

B. Provide product information including seed mix, fertilizers and applicator equipment etc.

2.0 MATERIALS

2.1 Seed – all seed must meet the requirements of U.S. Department of Agriculture Rules and Regulations as set forth in Federal Seed Act and Texas Seed Law. Seed shall be certified 90 percent pure and furnish 80 percent germination and meet the following requirements:

1) Rye – fresh, clean, annual Rye grass (Gulf) seed mixed in labeled proportions. As tested, minimum percentages of impurities and germination must be labeled. Deliver in original unopened containers.

2) Bermuda – extra-fancy, treated, lawn type common Bermuda. Deliver in original, unopened container showing weight, analysis, name of vender, and germination test results.

3) Wet, moldy, or otherwise damaged seed will not be accepted.

2.2 Fertilizer – Fertilizer shall be dry and free flowing, inorganic, water-soluble commercial fertilizer, which is uniform in composition. Deliver in unopened containers, which bear the manufacturers guaranteed analysis. Caked, damaged, or otherwise unsuitable fertilizer will not be accepted. Fertilizer shall contain minimum percentages of the following elements:

1) Nitrogen: 15 Percent

2) Phosphoric Acid: 15 Percent

3) Potash: 15 Percent

2.3 Mulch – mulch shall be virgin wood cellulose fibers from whole wood chips having a minimum of 20 percent fibers 0.42 inches in length and 0.01 inches in diameter.

2.4 Mulch shall be dyed green for coverage verification purposes.

2.5 Soil Stabilizer – provided Terra-Blend with Tacking Agent 3 or approved equal.

3.0 EXECUTION

3.1 Preparation

1) Prepare all disturbed areas by placing top soils free from undesirable organic or inorganic materials, including stones, hard clay lumps or other debris.

Technical Specification Hydromulch Seeding

Section 00100-016 Page 2 Revised 3/22/2022

2) Do not perform work if current or immediate future weather conditions are not satisfactory.

3.2 Application

1) Seed – provide appropriate type of seed mix and apply uniformly at the rate shown below:

Seed Mix Application Rate (lbs/ac)

Application Date

Hulled Common Bermuda Grass 98/88 40 Jan 1 to Apr 15 Unhulled Common Bermuda Grass 98/88 40 Annual Rye…