Pollution Ctrl CS_251.doc

Construction Specification 251—Pollution Control

1.

Scope

The work consists of installing measures or performing work to control erosion and minimize the production of sediment and other pollutants to water and air from construction activities.

2.

Material

All material furnished shall meet the requirements of the material specifications listed in section 8 of this specification.

3.

Erosion and sediment control measures and works

The measures and works shall include, but are not limited to, the following:

Seeding—Seeding to protect disturbed areas shall occur as soon as reasonably possible following completion of that earthwork activity.

Mulching—Mulching shall provide temporary protection of the soil surface from erosion.

Sediment filters—Straw bale filters or geotextile sediment fences trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under or around them. These filters are temporary and shall be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

Other—Additional protection measures shall be as specified in section 8 of this specification or as required by federal, state, or local government.

4.

Chemical pollution

The contractor shall provide watertight tanks or barrels to dispose of chemical pollutants such as drained lubricating or transmission fluids.

Sanitary facilities such as chemical toilets or septic tanks shall not be located next to live streams, wells, or springs. They shall be located at a distance sufficient to prevent contamination of any water source. At the completion of construction activities, facilities shall be disposed of without causing pollution as specified in section 8 of this specification.

5.

Air pollution

The burning of brush or woody vegetation shall adhere to state and local regulations concerning open burning. Fire prevention measures shall be taken to prevent the start or spreading of wildfires that may result from project activities.

6.

Maintenance, removal, and restoration

All pollution control measures and temporary works shall be adequately maintained in a functional condition for the duration of the construction period. All temporary measures shall be removed and the site restored to near original condition, unless directed differently by the engineer.

7.

Measurement and payment

Compensation for any item of work described in the contract (but not listed in the bid schedule) is included in the payment for the item of work to which it is made subsidiary. Such items (and the items to which they are made subsidiary) are identified in section 8 of this specification.

8.

Items of work and construction details

Items of work to be performed in conformance with this specification and the construction details are:

Subsidiary Item - Pollution Control Measures

(1) This item shall consist of providing a sanitary toilet facility for the job site; collecting and disposing of chemical pollutants; installing sediment barriers at the locations shown on the plans or staked in the field; and performing all construction activities in a manner that will minimize water pollution, air pollution, and soil erosion.

(2) No separate payment will be made for Pollution Control. Compensation for this item will be included in the payment for Earthfill.

NRCS -March 2009

251-1 KS –Big Caney Watershed District EWP, FRD 12