ESBD_490070_1771020270060_582-26-15344 Attachment A.pdf

Solicitation Number: 582-26-15344 Continuous Air Monitoring Station

Site Pad Construction Attachment A Specifications:

Description These specifications are for Midlothian North Ward Road site at 850 North Ward Road, Midlothian, Texas 76065. The site location address is provided to assist with developing the cost bid estimate. It is at the vendor’s discretion to evaluate the site prior to bidding.

See attached layouts and diagrams below.

• The contractor(s) shall obtain all necessary local permits, engineered site plans, land surveys, and environmental study (prior to beginning construction), and request final inspection(s), if required by the local authority. The contractor(s) shall make any corrections to the installations that the local inspectors may require.

• The contractor shall be responsible for locating (schedule dig test by calling 811 or online at call811.com) all underground utilities in the area of project construction and shall be responsible for avoiding and not disrupting nor damaging any underground utilities during project construction and installation.

Note: If utilities are discovered in the project area after the dig test has been performed, the contractor shall stop construction and notify the TCEQ Construction Coordinator.

Materials and Construction

1. The contractor shall provide the equipment, materials, and labor to construct the site pad.

2. The site pad shall be a 44' (foot) x 44' (foot) (1,936 square feet) square. The site pad shall be a minimum of 6" (inch) above grade on all sides and composed of City of Midlothian approved compacted crushed limestone or Texas Department of Transportation (TXDOT) approved road base material. The road base material shall be homogeneously mixed with 5 percent (%) cement mix, rolled in place, and watered to set and cure the cement mix.

a. Road base shall have maximum aggregate size of 1 ¾ inches (“). If specified base material is unavailable in the area, the contractor must provide detailed specifications for the proposed substituted material and receive written approval from the TCEQ construction coordinator before the proposed material is used.

b. The site pad shall be prepared by scraping and leveling the area before the road base material is applied. The pad surface shall be a minimum of 6” (inch) “above grade on all sides”.

c. The pad shall be compacted, rolled and leveled using an adequate size steel vibratory or pneumatic roller. The site pad shall be cured with water to form a solid surface. There shall be no loose pad debris/particles.

3. Exterior of the site pad must be returned to its original state once the site pad construction is complete.

4. Soil material removed in preparation can be used to repair any damage done to the exterior site area during excavation. The remainder of removed material shall be transported from the premises and will not be spread or piled outside site pad area.

5. Exterior of the site pad will be clean of excess material and trash before construction will be approved by the TCEQ construction coordinator. Any grass or soil outside the site perimeter damaged by the contractor shall be corrected by the contractor at no additional cost to the end user.

Timeline All aspects of the site construction (electrical, site pad, and fence) are to be completed within 30 days after the TCEQ construction coordinator provides approval to commence work, weather permitting. The vendor shall provide pictures and construction progress to the TCEQ Construction Coordinator daily via email once construction commences.

Note: Do not begin construction without written approval to commence work from the TCEQ Construction Coordinator.

Continuous Air Monitoring Station Attachment A Fence Specifications – Black 8-Foot Fence

40 x 40 Feet

Description These specifications are for Midlothian North Ward Road site at 850 North Ward Road, Midlothian, Texas 76065. The site location address is provided to assist with developing the cost bid estimate. It is at the vendor’s discretion to evaluate the site prior to bidding. It is at the vendor’s discretion to evaluate the site prior to bidding.

Before Construction

• The Contractor(s) shall obtain all necessary local permits, engineered site plans, land surveys, and environmental study (prior to beginning construction), and request final inspection(s), if required by the local authority. The Contractor(s) shall make any corrections to the installations that the local inspectors may require.

• The contractor shall be responsible for locating (schedule dig test by calling 811 or online at call811.com) all underground utilities in the area of project construction and shall be responsible for avoiding and not disrupting nor damaging any underground utilities during project construction and installation.

Note: If utilities are discovered in the project area after the dig test has been performed, the contractor shall stop construction and notify the TCEQ Construction Coordinator.

• The contractor(s) shall provide the equipment, materials, and labor to install fencing to surround a compound with an area of 1,600 square feet (40-foot x 40 foot).

• The fence will be constructed on and centered in the site pad no closer than two feet to the site pad edge on all sides as indicated in the attached specification drawing.

• The fence must be eight (8) foot high chain-link with black privacy inserts and include one (1) walk-in gate and one (1) side-by-side drive through gate, following all specifications.

• The fencing will be completed only after the pad and electrical service panel are installed. Under no circumstances will the fence be installed before the pad and service panel.

• See specification drawing attached for size, dimensions, and centering of fence lines.

The fence shall be constructed of:

1. Nine (9) gauge galvanized chain link mesh and bottom tension wire

2. Black privacy inserts to provide a minimum of 85% privacy

3. Three (3) inch Outside Diameter (OD), Schedule 40, terminal posts

4. Two and one-half (2-1/2) inch OD, Schedule 40, line posts

5. One and five-eighths (1-5/8) inch OD, Schedule 40, top rails and gate frames. The chain link mesh must be attached to the top rails and gate frames

There shall be:

6. Maximum distance between line posts shall be ten (10) feet

7. All posts shall be set in concrete to a minimum size and depth of 8 inches wide x 32 inches deep to provide adequate strength and support to fence

8. One (1) walk-in gate, four (4) feet wide

9. One (1) side-by-side drive through gate, with two swinging panels six (6) feet wide each, to provide a twelve (12) foot wide opening to access site

10. One (1) drop rod with receiver hole for the swing panel set

11. Gates shall have heavy duty latches and swing in both directions

12. Work shall be performed in accordance with the standards of the Industrial and Chain Link Fence Manufacturers Institute and the American Society for Testing and Materials

Contractor shall provide:

13. Reflective, rectangle shape, sign (green background with white lettering) to mark the official site address that must match the address on the issued permit and the meter loop base.

a. Sign shall be constructed from 80 mil aluminum, 3M High Intensity Grade resilient material with a 10-year warranty and a minimum letter dimension of 1 ½”.

b. Sign shall be orientated horizontally with a minimum dimension of 18” high by 24” wide and attached securely (using galvanized steel fasteners) from all four corners of the sign to the external side of site fencing, facing the main road or highway.

All aspects of site construction (electrical, pad, sidewalk, and fence) are to be completed within two weeks of the TCEQ giving the construction approval to commence work on that specific site, weather permitting. The contractor shall provide pictures and construction progress to the TCEQ Construction Coordinator daily once construction commences.

Continuous Air Monitoring Station – 200 AMP Electrical and Overhead Power Connection Attachment A Specifications

Description These specifications are for Midlothian North Ward Road site at 850 North Ward Road, Midlothian, Texas 76065. The site location address is provided to assist with developing the cost bid estimate. It is at the vendor’s discretion to evaluate the site prior to bidding.

Before Construction

• The Contractor(s) shall obtain all necessary local permits, engineered site plans, land surveys, and environmental study (prior to beginning construction), and request final inspection(s), if required by the local authority. The Contractor(s) shall make any corrections to the installations that the local inspectors may require.

• The contractor shall be responsible for locating (schedule dig test by calling 811 or online at call811.com) all underground utilities in the area of project construction and shall be responsible for avoiding and not disrupting nor damaging any underground utilities during project construction and installation.

• Installation of the power pole support shall be completed within one week after the completion of the site pad, weather permitting.

• The Contractor will be responsible for notifying electrical service provider of the final electrical service pole inspection(s) and send a confirmation (by e-mail) to the TCEQ construction coordinator as soon as the electrical provider has accepted inspection(s).

Note: If utilities are discovered in the project area after the dig test has been performed, the contractor shall stop construction and notify the TCEQ Construction Coordinator.

Materials and Construction

1. The contractor shall provide the equipment, materials, and labor to establish an electrical connection from the local power company.

2. Contractor will be responsible for all engineered wiring diagrams and load charts as required by the utility provider.

3. This shall be an insulated copper, 3 wire, single phase (two balanced legs for 120 volt 200 amperes per leg) connection for 240 volts, 200 amps, and 60 Hertz.

4. This shall be wired with entrance cable of adequate size, as specified by Local and National Electrical Code, to carry the 200-ampere load.

5. The contractor shall furnish and install a service pole for above ground power (see attached layout), as directed by the TCEQ Construction Coordinator.

6. The pole shall be sound material treated with creosote or equivalent.

a. The pole shall be rigidly mounted vertically in the ground to a depth that will support the pole and weight of the wires from the power company pole.

b. The dimensions of several key characteristics, such as pole height, depth, and length, shall be determined upon site selection under consultation with the relevant electric provider and the selected vendor to meet code.

7. All electrical equipment used by the contractor must be manufacturer listed by Underwriters Laboratories, Incorporated and shall carry the Underwriter's label.

Materials shall be new equipment, and all fittings shall be well galvanized or otherwise made corrosion resistant.

8. All work must be installed in accordance with the National Electrical Code and any local or state laws in existence at the time of installation. If there is a conflict with the National code, the local code shall prevail.

Electrical equipment installed with the panels shall be constructed of the following:

9. A rain tight service head

10. A meter loop base

11. The meter loop base shall have a permanently printed, weatherproof label identifying the site address that must match the address on the issued permit and on the fence. Handwritten labels are not accepted.

12. A Square D, QO Load Center (Manufacturer # QO1816M200FTRB) Type exterior weatherproof electrical box with a Single Phase 24OV/200 ampere main disconnect switch, with a minimum of 8 breaker space (s).

13. A Surge Protective Device (SPD) DITEK model DTK-120/240HD2 or equal will be added to the 200-amp main panel circuit. SPD must be UL/US Listed.

14. A Square D load center shall have one 100 ampere 2pole breaker, two 20 ampere GFCI (ground fault circuit interrupter) breakers, and one 20-amp non GFCI breaker installed with panel.

15. An all-weather, 110-volt receptacle connected to a 20-ampere “GFCI breaker” shall be installed on the pole or H frame panel support.

16. All wiring is to be run in specified conduit with weather tight connectors as required, including the weather tight service head at point of power cut-in.

17. The meter loop shall be completed with ground connection and an 8-foot ground rod.

18. A grounding conductor shall be connected from the overhead feeder down to the ground, connected to the ground rod with a copper clamp, and must be copper, and of adequate size as specified by Local and National Electrical Code.

19. No substitutions are allowed without expressed written approval from the TCEQ.

Installation of the power panel support as required, shall be completed within one week of completion of the site pad, weather permitting. Construction area shall be clean of all trash and leftover materials before construction will be approved by the TCEQ Construction Coordinator.

Note: Contact the TCEQ Construction Coordinator before commencing work.