HomeMy WebLinkAboutInstallation Observation Letter
Certificate of Inspection & Acceptance
December 23, 2024
Olsen Project
2607 County Road 314
New Castle, CO 81467
Parcel No. 2181-122-00-295
The onsite wastewater treatment system (OWTS) of reference was inspected on December 23, 2024. The
system was found to conform with the plans and specifications set forth in the OWTS design for the
aforementioned property prepared on September 17, 2024 and later revised on October 7, 2024, with the
following note:
• 5 rows of 15 ARC36 chambers were used in lieu of 5 rows of 18 Quick4 Infiltrators
• Soils from the excavation were staged between the soil treatment area and residence, preventing
asbuilt measurements to be taken on the day of inspection. Only five inspection ports located on
the terminal ends of the trenches were installed and left at ground surface when engineer measured
the asbuilt on 01/02/24. While this does not meet the engineered design which called out 10
inspection ports total (one at each end of the trenches), it does meet Garfield County OWTS Code,
which states “4-inch inspection port accessible from ground surface must be installed at the
terminal end of each lateral in a trench system…” 43.10-F.6.(a). The engineer was unable to
measure the beginning end of the trenches.
Swimming pools, ponds, or other water features were not included in the submitted or approved design.
Setback of OWTS components from property lines and easements are based on information provided by
owner or owner’s representative. Soil cap and final grading associated with any OWTS components are
not included in this certification. Copies of the engineered plan are on file at the Garfield County Building
Department or may be obtained from the undersigned design engineer.
Seal
Kachayla R. Cronk, P.E.
P.O, Box 140
Mack, CO 81525
970-250-0572