HomeMy WebLinkAboutCCOR 09-18-2026 798-208 to 798-209Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com
Project Name:Town of Yarmouth Water Resource Recovery Facility Project NO.:25-0468Location:Yarmouth MA Date:9/18/2026
Client:Wright-Pierce Client Rep:Rayssa FonteWeather:Partly Cloudy 67 - 75°F S.W.COLE Rep:Alexander
Charnitsky
General Contractor:Nickerson Time Onsite:05:30 - 09:15Placement Type: Footing Wall Slab Other
Placement Location:Wall on Pipe Gallery Slab 31, Process Building NW & SE Slabs on Grade
Concrete Placement Observations Observed Comments
Required mix used Yes 4500psi, 1 1/2", 3/4, Sika 75
Concrete properly conveyed to all areas of placement Yes Pump Truck
Internal vibration / consolidation of concrete No Handheld vibrator
Even layering around openings and embedments No Concrete evenly layered and vibrated around
openings and embedments
Post placement observations (finishing, curing, etc.)No Concrete Manually Finished
Field Testing of Concrete performed:No
*CYLINDER SET NO:798-208 to 798-209 *Refer to associated concrete test report
Notes:
As requested by Wright-Pierce, S.W. COLE rep was onsite to perform concrete sampling and concrete
testing at the locations referenced above.
S.W. COLE rep Alex Charnitsky arrived onsite at approximately 5:30 AM to perform the requested
services.
S.W. COLE rep observed concrete placement during the sampling and testing activities.
Concrete Delivery Truck 81, Load 1, arrived onsite carrying approximately 11 cubic yards of 4,500-psi
concrete containing 3/4-inch aggregate. Project personnel added Sika 75 admixture to the concrete prior
to placement. The contractor placed the concrete via pump truck.
Approximately 80 cubic yards of concrete were placed during this visit. Two sets of field tests were
performed on sampled concrete and yielded the following results:
Truck 81 – Load 1
Slump: 7.0 inches
Air Content: 4.2%
Concrete Temperature: 78°F
After finishing the 3/4 inch aggregate, pump moved and 1-1/2 inch aggregate was used
Truck 67 – Load 1
Slump: 8.0 inches
Air Content: 4.5%
Concrete Temperature: 77°F
One sets of 6×12-inch compression test cylinders was fabricated for laboratory testing at 7, 14, and 28
days (two cylinders), along with one additional hold cylinder.
One set on 4x8 cylinders was fabricated for laboratory testing at 7, 14, 28 (3), and one hold cylinder.
Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com
AEC relayed results verbally to Client Rep and departed at 9:15AM
Attachments: 3 Photos Reviewed by:9/18/2026 Kaylie O'Su iv Kaylie O'Sullivan
Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com
Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com