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' ' ARBUCKLE COSTIC ARCHITECTS, INC. 363 State Street Salem, Oregon 97301-3533 (503) 58 I-4 I 14, Fax (503) SS I-3655, E-mail: ar~£~~tQ~~,~~r. ~~?e~%~t~~ec~s~~e: rnnt ••• ...............•••••' ~•• PROPOSAL REQUEST PROJECT: Courthouse Square PROPOSAL 78 555 Court Street NE REQUEST NUMBER: Salem, Oregon 97301 DATE: Dec. 6, 1999 OWNER: Marion County and Salem Area Mass Transit ARCHITECTS 100 High Street NE District PROJECT NO.: 9828 Salem, Oregon 3140 Del Webb Ave NE ' 97301 Salem, Oregon 97303-4165 CONTRACT FOR: Generai Construction CONTRACTOR: Pence/Kelly Construction, Inc. ~ 2747 Pence Loop SE Salem, Oregon 97302 CONTRACT DATED: February 17, 1999 Please submit an item¢ed quotation for changes in the Contract Sum and/or Time incidental to proposed modific~tions to the Contract Documents described herein. Description: (vV-itten descriPtion oftne work) 1. Scope: (LEED) Advanced Construction Indoor Air Quality (IAQ) Management 2. Use of the rooftop air handling systems during construction will require the installation of fifters at each floor retum air entry to the HVAC shafts as well as at the units as follows: a. Provide a 30% fifter at each Retum Air errtry to the HVAC shafts, on each building level, from the ground floor through the fifth floor. These filters shall be replaced every two weeks, and additionally as required by construction operations, during construction of the work. Filters shall be mechanically attached in a manner to prevent leakage of ceiling plenum retum air past the filter. (Duct tape shall be an acceptable attachment method.) b. The fifter within each rooftop AC unit shall be a 65% efficient unit. These fifters shall be replaced when static pressure loss at the filter is 0.5 in. w_g.. 3. Prepare a Construction Indoor Air Quality Management Plan to include the following elements: • Review construction sequencing to reduce absorption of VOCs by materials that act as "sinks." (apply wet and/or odor-emitting materials such as paints, sealants, coatings, etc. before dry/sink materials such as ceiling tiles, carpets, fabrio-covered fumishings are installed). • Include construction-related IAQ procedures in the construction progress meetings. • Provide temporary ventilation. Check for possible damage to the system from high humidity. Use 100% outside air ventilation (depending on climate) with air exhausted directly to the outside during installation of finishes and other VOC emitting materials. • Check that the maximum outside air ventilation rate does not exceed heating, cooling, and humidity levels. • All coils, air filters, and fans should be clean before testing and balancing is done and before baseline air quality tests are conducted. • Test baseline air quality levels prior to occupancy.