Other:

• Designers show erosion and sedimentation controls (ESCs) on design plans. Contractors will put those controls out on site, or make modifications as necessary during construction. Environmental and Construction staff may be contacted to troubleshoot issues and review ESC plans.

Other:

• The DOT requires all projects over an acre that require a general construction permit to follow our water quality specifications. All projects below an acre without a permit are required to follow requirements under a standard special.
• State DOT Resident Construction Engineer office
• Size of contributing area

Other:

• Topography (landform), vegetative buffers, temporary stabilization (tracking, terracing, slope controls) phasing, administrative controls (all control measures are located in 107.25, 208, 213, 216 related to water quality and we allow non-standard control measures if approved by a project special or the Project Engineer.
• We will also use temporary tanks and dewatering basins for active dewatering activities.
• Gravel Access Approach
• BMPs are determined by the contractor managing SWPPP.
• NYS has a stormwater design manual written by our New York State DEC which includes standard permanent practices. We also have the Environmental Handbook for Construction Operations, also by New York State DEC, which covers standard temporary measures.

Other:

• Used in some cases of sediment discharges
• An approved listing is management by our Department of Natural Resources. I believe most are an anionic polyacrylamide, but cannot be certain.
• We have the ability to allow anionic PAM but have not had anyone use it yet.
• The DOT does not have restrictions on flocculants...flocculants used determined by contractor.
• Unsure. My understanding is that we primarily use flocculants for disposal of materials containing hazardous chemicals, such as when we demolish polymer overlays on bridge decks. We avoid permanent stormwater management practices which require the intermittent addition of chemicals, and prefer to limit permanent maintenance to vegetation management and sediment removal where possible.

Other:

Prepare and Manage

• This would be for a design-bid-build project that is triggered to be incorporated into MS4 permit requirements. We have different methodologies for other contract types and internal projects (Property mgt, Colorado DOT Mtce, and Utility/Access and Special use permits).
• Inspector

Prepare

• District Environmental Planner
• Agronomist
• For Design-Build Projects the contractor prepares the SWPPP program but the department must approve the plan and oversee the plans during construction.
• Agronomist

Manage

• Resident Engineer

Other:

• PF only prepares an SWPPP if the project is a Maintenance and Operations project that is greater than 1 acre, and does not involve a contractor.
• This is very dependent on contract type. It is a requirement from the Form 128 Clearance process in most cases. Please note that Colorado is a practice based permit for our general construction and the design of the SWMP is completed on projects prior to advertisement on design-bid-build projects and modified by the contractor per our specifications when the project is active.
• The DOT does not prepare the SWPPP. The contractor is required to complete the SWPPP in accordance with permitting requirements and must have it completed prior to the start of any earth-disturbing activities.
• Contractor prepares SWPPP before getting a permit.
• After a project is awarded.
• This is the contractor’s responsibility. Usually, they consult out SWPPP preparation.
• The design team completes SWPPP components as known in the design, and contractors prepare an implementation plan for unknown items such as schedule-related items, dewatering activities, etc.