8625 3RD AVE SE 2025-03-24 - Laserfiche WebLink

Prevention, Control, and Countermeasure Plan in accordance with Section 1- 07.15 as amended in the Special Provisions. The Contractor shall submit a Construction Stormwater Pollution Prevention Plan (SWPPP). The SWPPP is a document that reflects the specific practices, physical structures, and Contract Drawings on the construction site that will prevent discharges of turbid or polluted stormwater to waters of the state. The SWPPP shall be prepared to the format and content prescribed by the Washington State Department of Ecology (DOE) for use with the Construction Stormwater General Permit. Additional information, including a template for preparing the SWPPP, can be obtained through the DOE website at the following web address: http://www.ecV.wa.gov/programs/wq/stormwater/construction/. The SWPPP is a "living" document that must be updated during the project whenever there is a change in design, construction, operation, or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the state. 8-01.3(2)F Dates for Application of Final Seed, Fertilizer and Mulch The following is added at the end of Section 8-01.3(2)F: The Contractor shall prepare and seed areas that are completed or partially completed within 72 hours when directed by the Engineer. Completed or partially completed areas that are seeded at the Engineer's direction will be measured for payment in accordance with Section 2-11 as amended in the Special Provisions. Areas seeded at the Engineer's direction that are subsequently disturbed to complete the work shall be reseeded. The reseeded areas will be measured for payment in accordance with Section 2-11 as amended in the Special Provisions. 8-01.3(9)A Silt Fence Section 8-01.3(9)A is supplemented with the following: Temporary silt fence geotextile at the bottom of the fence shall be buried in a trench to a minimum of 4 inches below the ground surface and be backfilled with native, except as directed by the Engineer. 8-01.3(9)D Inlet Protection Section 8-01.3(9)D is supplemented with the following: Inlet protection shall be installed at each catch basin located downstream from any construction activity. Inlet protection shall be installed and maintained such that all flow, up to at least 25 gpm, entering the catch basin passes through the device. Where a below inlet grate device is used, the device shall contain overflow capacity such that the catch basin will not overflow. Alderwood Water&Wastewater District W2301 Trans Main 1 &2 Valve Replacement 9-01/3 Contract No. W2301 October 2023