Jansen Inc 6/10/2019 - Laserfiche WebLink

1 6-07.3(10)A Containment 2 The first sentence of the third paragraph is revised to read: 3 4 Emissions shall be assessed by Visible Emission Observations (Method A) in SSPC 5 Technology Update No. 7, Conducting Ambient Air, Soil, and Water Sampling of Surface 6 Preparation and Paint Disturbance Activities, Section 6.2 and shall be limited to the Level A 7 Acceptance Criteria Option Level 0 Emissions standard. 8 9 6-07.3(10)D Surface Preparation Prior to Overcoat Painting 10 The first paragraph is revised to read: 11 12 The Contractor shall remove any visible oil, grease, and road tar in accordance with SSPC- 13 SP 1, Solvent Cleaning. 14 15 The second paragraph is revised to read: 16 17 Following any preparation by SSPC-SP1, all steel surfaces to be painted shall be prepared 18 in accordance with SSPC-SP 7, Brush-off Blast Cleaning. Surfaces inaccessible to brush- 19 off blast shall be prepared in accordance with SSPC-SP 3, Power Tool Cleaning, as 20 allowed by the Engineer. 21 22 The first sentence of the third paragraph is revised to read: 23 24 Following brush-off blast cleaning, the Contractor shall perform spot abrasive blast cleaning 25 in accordance with SSPC-SP 6, Commercial Blast Cleaning. 26 27 The second to last sentence of the third paragraph is revised to read: 28 29 For small areas, as allowed by the Engineer, the Contractor may substitute cleaning in 30 accordance with SSPC-SP 15, Commercial Grade Power Tool Cleaning. 31 32 6-07.3(10)G Treatment of Pack and Rust Gaps ' 33 The second paragraph is revised to read: 34 35 Pack rust forming a gap between steel surfaces of/16 to 1/4 inch shall be cleaned to a depth 36 of at least one half of the gap width. The gaps shall be cleaned and prepared in accordance 37 with SSPC-SP6. The cleaned gap shall be treated with rust penetrating sealer, prime 38 coated, and then caulked to form a watertight seal along the top edge and the two sides of 39 the steel pieces involved, using the rust penetrating sealer and caulk as accepted by the 40 Engineer. The bottom edge or lowest edge of the steel pieces involved shall not be 41 caulked. 42 43 The third paragraph is supplemented with the following: 44 45 Caulk shall be a single-component urethane sealant conforming to Section 9-08.7. 46 d7 The fifth paragraph is revised to read: 48 49 At locations where gaps between steel surfaces exceed 1/4 inch, the Contractor shall clean 50 and prepare the gap in accordance SSPC-SP6, apply the rust penetrating sealer, apply the City of Everett Page AM-48 Amendments Everett Downtown Streetscape Improvement March 22, 2019