1717Air, Land, and Water Pollution

1717.1GENERAL

The Contractor shall schedule and conduct construction operations to prevent, control, minimize, or abate pollution of air, land, and water in accordance with 1701, “Laws to be Observed.” The Contractor shall obtain permits in accordance with 1702, “Permits, Licenses, and Taxes.” A Discovery of Contaminated Materials and Regulated Waste If during the course of the Project, the Contractor encounters any of the following conditions indicating the possible presence of contaminated soil, contaminated water, or regulated waste, the Contractor shall immediately stop Work in the vicinity, notify the Engineer, and declare a differing site condition in accordance with 1402.2, “Differing Site Conditions.” The Engineer will conduct a documented inspection and evaluation before resumption of Work . The Contractor shall not resume Work in the suspected area until approved in writing by the Engineer.

A.1 Contaminated Soil Some indicators of contaminated soil, ground water, or surface water include any of the following:

chemical odor

organic content; or soil with a dark, oily appearance, or any unusual texture

A.2 Regulated Wastes Some indicators of regulated wastes include any of the following:

material, possible indicators of demolition waste that could contain asb estos, lead, or other chemicals

indicators of asbestos

asbestos, or other chemicals

brown treat, and creosote

sumps that could contain chemical waste, waste traps that could contain oil wastes, cesspools, or any other underground structure that could contain chemical or oily wastes B Water Protection The Contractor shall take all practical precautions and actions necessary to prevent pollution of ground water and surface water with any particulate or liquid matter that may be harmful to fish, wild life, or public health or cause a public nuisance. The Contractor shall avoid the crossing of streams and rivers unless approved by the regulatory authority. The Contractor shall minimize water pollution from haul R oads, Work platforms, temporary earth fills, and other temporary staging areas used for construction. The Contractor shall restore all temporary crossings to pre-existing conditions or as shown in Plan. C Land Protection The Contractor shall implement practical actions to minimize erosion on the P roject. The Department will consider all areas within the grading construction limits, exclusive of R oadbed areas, that grading or grubbing operations have rendered natural vegetation ineffective as being exposed to probable erosion until such time that the Contractor completes final topsoil finishing and turf establishment operations. D Air Protection The Contractor shall implement practical actions to minimize air pollution that may harm public health, safety, or the environment. The Contractor shall comply with Best Management Practices in accordance with 1103, “Definitions,” to control dust appropriate for the Work.

1717.2STORMWATER MANAGEMENT AND EROSION CONTROL

The Contractor shall schedule and conduct construction Activities in a manner to minimize soil erosion and protect surface waters. The Contractor shall install Temporary Sediment Control Measures in areas that contribute flow to surface waters. The Contractor shall:

Measures

The Contractor shall minimize vehicle tracking of soil where vehicles exit the Project Site onto paved surfaces or off Right-of-way. The Contractor shall remove tracked soil from paved surfaces leaving the Project Site daily, or more frequently to allow for safe passage of the traveling public. The Contractor shall retrieve soil that has left the Right-of-way unless the Department has received landowner and/or regulatory approval, as required, for depositing fill into adjacent properties or surface waters. The Contractor shall remove deltas and sediment deposited in drainage ways, pipes, treatment areas, or catch basins, and stabilize the areas where sediment removal results in exposed soil. The Contractor shall stabilize exposed slopes within 14 Calendar Days after Work in that area has ended or:

to an impaired or special water

area of the Project discharges into surface waters, or off the Project limits The Contractor shall provide energy dissipation within 24 hours when connecting pipe outlets to surface waters. A Quality Control Program The Contractor shall submit a Quality Control program including the following:

preconstruction meeting

permitting authorities

Engineer, that identifies, locates, and describes the following in text and picture: 1) Surface waters 2) Turbid or brown water locations 3) High-risk pollution-generating Activities 4) Documentation on how deficiencies were corrected from previous week

the State duty officer

and stabilize disturbed areas on a section-by-section basis

The Engineer may review the Contractor’s Quality Control procedures. The Contractor shall maintain the Quality Control records at the Project Site. B Erosion and Sediment Control Schedule The Contractor shall submit a weekly schedule of proposed erosion and sediment control Activities including the following:

C Site Management Plan The Contractor shall provide a Site Management Plan, in accordance with 1103, “Definitions,” as shown in the Plans, or within 10 Calendar Days of receipt of written notice from the Engineer. Site Management Plans are for specific construction operations in areas within 200 feet of, and drains to surface waters or Areas of Environmental Sensitivity (AES). The Site Management Plan shall:

pollutant management Best Management Practices (BMPs) in accordance with 1103, “Definitions”

The Contractor shall not start Work in the affected areas until the Engineer accepts the Site Management Plan document and all Material and Equipment are on site.