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Report Bend Office (541)330-9155 Geotechnical Office (503)601-8250 Carlson Testing, Inc. Eugene Office Salem Of (541)345-0289 Office (503)589-1252 Tigard Office (503)684-3460 Special Inspection RECEIVE]) FINAL SUMMARY LETTER Date: March 18, 2015 MAR 2 5 2015 Job#: T1309125 CITY OF l I(.AKD BUILDING DIVISION City of Tigard 13125 SW Hall Blvd Tigard, OR 97223-8199 Attn: Building Division Re: Project Name: Durham WWTP—Cogeneration & Brown Grease Receiving Facility Address: 16375 SW 85th Avenue—Tigard, OR Permit#: SIT2013-00013/BUP2013-00117 Per Chapter 17, Section 1704.1.2 of the International Building Code (IBC), we have performed special inspection of the following item(s) per our inspection reports only: Reinforced Concrete Cast-In-Place Anchors, Adhesive Anchors or Expansion Anchors Structural Masonry Structural Steel High Strength Bolts The non-compliance (NC) items recorded for each of the above inspection categories, as listed on the non-compliance report, have been either repaired and re-inspected by CTI for compliance or reviewed and accepted by the engineer of record for the project in the"As-Built Condition"or through an RFI. The issuance of this final report is based on the engineer's acceptance of the NC items not specifically re-inspected by CTI. CTI did not provide any additional review or re-inspection of those items beyond the inspections that initially generated each of these individual items on the non-compliance list. The engineer of record has provided the acceptance of the non-compliance items and as-built conditions. All requested inspections and tests were performed and reported according to the requirements of project documents and to the best of our knowledge, the work was in conformance with the approved plans and specifications, approved change orders and applicable workmanship, provisions of the State Building Code and Standards, as well as the structural engineer's design changes, approvals and verbal instructions. Our construction inspection and testing services were provided and intended to help reduce the risk of construction defects, deficiencies or omissions that arose during and after construction. Our services do not constitute a warranty or guarantee of any type. Even with diligent construction monitoring and testing, construction defects, deficiencies or omissions in the contractor's work may exist. It is the contractor's responsibility to perform their work in accordance with the approved construction documents. CTI has provided its professional services with the degree of care and skill currently exercised under similar circumstances by members of its profession in the same locale. Statements made in our reports are based on technical judgments and should not be construed to be conclusive representations of fact. Our reports pertain to the material tested/inspected only. P:\Projects\General\2013\T1309125\03-18-15 Final Letter.doc Updated 11/30/11 Date: March 18, 2015 Job#: T1309125 Page 2 of 2 CTI's services did not include responsibilities related to determining, supervising, implementing or controlling the means, methods, techniques, sequences or procedures of the construction or evaluating or reporting job conditions related to health, safety or welfare. Information contained herein is not to be reproduced, except in full, without prior authorization from this office. If there are further questions regarding this matter please do not hesitate to contact this office. Respectfully submitted, CARLSON TESTING INC. to en W. Leach Project Manager SWL/jk cc: Clean Water Services (Durham)—Randy Naef EADOC City of Tigard Building Division—Walter'Chip' Barnett EMAILED/MAILED Carlson Testing, Inc. • Incompleted Items List (NCL) Mar 18,2015 T1309125. Project Name: DURHAM WWTP — COGENERATION & BROWN GREASE RECEIVING FACILITY Project Address: 16375 SW 85TH AVENUE TIGARD OR Permit No: SIT2013-00013/BUP2013-00117 P.O.No: PROJECT NO. 6471 Project Manager: STEVEN W. LEACH Item# Insp. Date Item Description Compliance CTI Sign-Off Date p. P Corrected 1 RB 01/20/2014 THE WELDING WAS ACCEPTABLE EXCEPT FOR T—PLUS WELDER CERTIFICATION R. BATY 01/21/2014 WELDER CERTIFICATION FOR THE FCAW. RECEIVED AND REVIEWED. THIS ITEM IS NOW IN COMPLIANCE. 2 KP 05/19/2014 THERE ARE NO PUDDLE WELDS ON RAFTER BEAMS DUE TO ACCEPTABLE PER CCR #34 K. PARKIN 07/18/2014 CONFIGURATION. ENGINEER OF RECORD TO REVIEW. SUBMITTED 05/28/14. 3 KP 05/19/2014 THERE ARE NO WELDS AT INTERIOR PARTITION WALLS ACCEPTABLE PER CCR #34 K. PARKIN 07/18/2014 DUE TO CONFIGURATION. ENGINEER OF RECORD TO SUBMITTED 05/28/14. REVIEW. CC:CLEAN WATER SERVICES (DURHAM) — RANDY NAEF CITY OF TIGARD BUILDING DIVISION — WALTER 'CHIP' BARNETT CH2M HILL INC (PORTLAND) — STEVE REYNOLDS Page: 1