Addendum No. 1 - FS 227 33 3113 Site Sanitary Sewerage Gravity Piping Enclosure 49-50.pdf
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- Attached to
- 1202 - County Fire Station 227 New Build
- Solicitation number
- ANE223-ANE2C-6144
- Issued by
- San Bernardino County, California
About this file
This is an Addendum to the specifications for Fire Station 227, prepared by STK Architecture, Inc., detailing the requirements for Site Sanitary Sewerage Gravity Piping (Section 33 3113). The document outlines the installation of sanitary sewerage drainage piping, fittings, and accessories, including the connection of the building's sanitary drainage system to the municipal sewer. The work encompasses trenching, pipe installation, cleanout placement, and protection measures throughout the construction period. Specifications require PVC pipe conforming to ASTM D3034 SDR 35 standards with fittings in various configurations including tees, bends, elbows, cleanouts, reducers, and traps. Cleanouts must be installed at each change in direction greater than 45 degrees, at minimum 50-foot intervals, and at the base of each vertical soil and waste stack, in conformance with SBMWD standard drawing S.303 and construction plans.
Installation requirements specify that pipe must be laid to slope gradients noted on layout drawings with maximum variation of 1/8 inch in 10 feet, and connected to both the building sanitary sewer outlet and municipal sewer system through installed sleeves. Trenching, bedding, and backfilling operations must comply with SBMWD Standard Specifications and Drawings for Construction of Domestic Water Systems sections 3-03.03 and 3-08, with backfill around pipe sides compacted and tamped in place. Protection measures include safeguarding pipe and bedding from damage or displacement until backfilling commences, preventing drain clogging with dirt or debris throughout construction, and placing plugs in uncompleted pipe ends at the end of each workday.
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Text version
STK Architecture, Inc. August 2025
SBC Fire Station 227 33 3113-1 Site Sanitary Sewerage Gravity Piping
SECTION 33 3113
SITE SANITARY SEWERAGE GRAVITY PIPING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Sanitary sewerage drainage piping, fittings, and accessories.
B. Connection of building sanitary drainage system to municipal sewers.
1.02 RELATED REQUIREMENTS
A. SBMWD Standard Specifications and Drawings for Construction of Domestic Water Systems B. Section 31 2316 - Excavation: Excavating of trenches.
C. Section 31 2316.13 - Trenching: Excavating, bedding, and backfilling.
D. Section 31 2323 - Fill and Backfill: Bedding and backfilling.
1.03 DEFINITIONS
A. Bedding: Fill placed under, beside and directly over pipe, prior to subsequent backfill operations.
1.04 REFERENCE STANDARDS
A. ASTM D3034 - Standard Specification for PVC non-pressure Sewer Pipe; latest edition.
B. ASTM D3212 - Standard Specification for PVC non-pressure Sewer Pipe; latest edition.
1.05 SUBMITTALS
A. Product Data: For each type of product indicated.
PART 2 PRODUCTS
2.01 SEWER PIPE MATERIALS
A. PVC Pipe ASTM D3034 SDR 35.
B. Fittings: Same material as pipe molded or formed to suit pipe size and end design, in required tee, bends, elbows, cleanouts, reducers, traps and other configurations required.
2.02 CLEANOUTS
A. Cleanouts shall be in conformance with the SBMWD standard drawing S.303 and the construction plans.
PART 3 EXECUTION
3.01 TRENCHING
A. Trench excavation shall be in conformance with section 3-03.03 and 3-08 of the SBMWD Standard Specifications and Drawings for Construction of Domestic Water Systems.
B. Backfill around sides and to top of pipe with cover fill, tamp in place and compact, then complete backfilling.
3.02 INSTALLATION - PIPE
A. Lay pipe to slope gradients noted on layout drawings; with maximum variation from true slope of 1/8 inch in 10 feet.
B. Connect to building sanitary sewer outlet and municipal sewer system, through installed sleeves.
3.03 INSTALLATION – CLEANOUTS
A. Install cleanouts in aboveground piping and building drain piping according to the following, unless otherwise indicated:
1. Locate at each change in direction of piping greater than 45 degrees.
2. Locate at minimum intervals of 50 feet.
Enclosure #49 Fire Station #227 11/17/25
STK Architecture, Inc. August 2025
SBC Fire Station 227 33 3113-2 Site Sanitary Sewerage Gravity Piping
3. Locate at base of each vertical soil and waste stack.
3.04 PROTECTION
A. Protect pipe and bedding cover from damage or displacement until backfilling operation is in progress.
B. Protect drains during remainder of construction period to avoid clogging with dirt or debris and to prevent damage from traffic or construction work.
C. Place plugs in ends of uncompleted piping at end of each day or when work stops.
END OF SECTION
Enclosure #50 Fire Station #227 11/17/25
| PART 1 GENERAL |
| 1.01 SECTION INCLUDES |
| A. Sanitary sewerage drainage piping, fittings, and accessories. |
| B. Connection of building sanitary drainage system to municipal sewers. |
| 1.02 RELATED REQUIREMENTS |
| A. SBMWD Standard Specifications and Drawings for Construction of Domestic Water Systems |
| B. Section 31 2316 - Excavation: Excavating of trenches. |
| C. Section 31 2316.13 - Trenching: Excavating, bedding, and backfilling. |
| D. Section 31 2323 - Fill and Backfill: Bedding and backfilling. |
| 1.03 DEFINITIONS |
| A. Bedding: Fill placed under, beside and directly over pipe, prior to subsequent backfill operations. |
| 1.04 REFERENCE STANDARDS |
| A. ASTM D3034 - Standard Specification for PVC non-pressure Sewer Pipe; latest edition. |
| B. ASTM D3212 - Standard Specification for PVC non-pressure Sewer Pipe; latest edition. |
| 1.05 SUBMITTALS |
| A. Product Data: For each type of product indicated. |
| PART 2 PRODUCTS |
| 2.01 SEWER PIPE MATERIALS |
| A. PVC Pipe ASTM D3034 SDR 35. |
| B. Fittings: Same material as pipe molded or formed to suit pipe size and end design, in required tee, bends, elbows, cleanouts, reducers, traps and other configurations required. |
| 2.02 CLEANOUTS |
| A. Cleanouts shall be in conformance with the SBMWD standard drawing S.303 and the construction plans. |
| PART 3 EXECUTION |
| 3.01 TRENCHING |
| A. Trench excavation shall be in conformance with section 3-03.03 and 3-08 of the SBMWD Standard Specifications and Drawings for Construction of Domestic Water Systems. |
| B. Backfill around sides and to top of pipe with cover fill, tamp in place and compact, then complete backfilling. |
| 3.02 INSTALLATION - PIPE |
| A. Lay pipe to slope gradients noted on layout drawings; with maximum variation from true slope of 1/8 inch in 10 feet. |
| B. Connect to building sanitary sewer outlet and municipal sewer system, through installed sleeves. |
| 3.03 INSTALLATION – CLEANOUTS |
| A. Install cleanouts in aboveground piping and building drain piping according to the following, unless otherwise indicated: |
| 1. Locate at each change in direction of piping greater than 45 degrees. |
| 2. Locate at minimum intervals of 50 feet. |
| 3. Locate at base of each vertical soil and waste stack. |
| 3.04 PROTECTION |
| A. Protect pipe and bedding cover from damage or displacement until backfilling operation is in progress. |
| B. Protect drains during remainder of construction period to avoid clogging with dirt or debris and to prevent damage from traffic or construction work. |
| C. Place plugs in ends of uncompleted piping at end of each day or when work stops. |
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