VGLZ212027 W50S8521R0013 _ Addendum 001 _ George Ave Sewer.pdf
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VGLZ 212027 – Repair Storm Sewer 340 District – George Ave SELFRIDGE ANGB, MI
ADDENDUM NO. 001 8 Aug 2021
This addendum applies to the following documents:
( X ) SOW – dated 6 May 2021
Description / Intent of Addendum:
1. Remove from SOW
a. Disregard section 5.1.2.1. “Excess (non-contaminated) soils can be managed by backfilling native material or grading and seeding in the local vicinity or transporting to one of the on-site excess soil stockpile areas, in accordance with Soil Relocation Guidance for SANGB (dated 2018-10-24) and Selfridge Design Standards (2017).”
b. Disregard section 5.3.1. “The new 18” (I.D.) pipe shall be fully formed of High Density Poly Ethylene (HDPE) material.”
c. Disregard section 5.4.1.2.1. “The Contractor shall form and install 4 inch thick concrete slab(s) over the subgrade region as illustrated in then applicable “backfill cross section” sketch. The 4 inch thick concrete slab(s) must match cross section, grades, finish and jointing of existing structures, to include but not limited to: adjacent curb(s) and sidewalk(s).”
d. Disregard section 5.4.1.3.1.2.1. “The Contractor shall form and install a new curb over the aggregate base region—as illustrated in the applicable “backfill cross section” sketch.
The formed and installed new curb section(s) shall match cross section, lines, grades, finish and jointing of existing curb(s) and sidewalk(s).”
2. Add to SOW:
a. Add section 5.1.2.1. “Excess (non-contaminated) soils can be managed by backfilling native material or grading and seeding in the local vicinity or transporting to one of the on-site excess soil stockpile areas, in accordance with Soil Relocation Guidance for SANGB (dated 2018-10-24) and Selfridge Design Standards (2017). The Contractor is solely responsible for managing excess soils; this includes but is not limited to:
backfilling, grading, seeding and transporting excess soils ”
b. Add section 5.1.3. “The Contractor shall disregard any soil testing requirements invoked by Selfridge ANGB standards, section 02 61 00, Removal and Disposal of Contaminated Media.”
c. Add section 5.3.1. “The new 18” (I.D.) pipe shall be fully formed of High Density Poly Ethylene (HDPE) material. The HDPE pipe shall be rated DR11 and comply with United Facilities Guide Specifications (UFGS) 33 30 00, section 2.2.2.4.”
d. Add section 5.4.1.2.1. “The Contractor shall form and install 4 inch thick concrete slab(s) over the subgrade region as illustrated in then applicable “backfill cross section” sketch.
The 4 inch thick concrete slab(s) must match jointing of existing structures, to include, but not limited to: adjacent curb(s) and sidewalk(s). The 4 inch thick slab must match cross section of adjacent existing sidewalk(s). The 4 inch thick slab must be graded to smoothly transition with top of curb(s) and other existing structures. To clarify, the finish elevation is to match the top of the curb(s)”
e. Add section 5.4.1.3.1.2.1. “The Contractor shall form and install a new curb over the aggregate base region—as illustrated in the applicable “backfill cross section” sketch.
The formed and installed new curb section(s) shall match cross section, lines, grades, finish and jointing of existing curb(s).”
VGLZ 212027 – Repair Storm Sewer 340 District – George Ave SELFRIDGE ANGB, MI
ADDENDUM NO. 001 8 Aug 2021
f. Add section 6.1.9. “UFGS 33 30 00, Sanitary Sewerage”
END OF ADDENDUM NO. 001
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