Weatherbee, Stephanie

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University of New HampshireUniversity of New Hampshire Scholars' RepositoryDivision 22 – Plumbing Chapter 5 – Technical Construction andRenovation Standards4-23-2015221353 - Facility Septic TanksSandra Hickeysandra.hickey@unh.eduFollow this and additional works at: https://scholars.unh.edu/pdch_5_22This Article is brought to you for free and open access by the Chapter 5 – Technical Construction and Renovation Standards at University of NewHampshire Scholars' Repository. It has been accepted for inclusion in Division 22 – Plumbing by an authorized administrator of University of NewHampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu.Recommended CitationHickey, Sandra, "221353 - Facility Septic Tanks" (2015). Division 22 – Plumbing. 5.https://scholars.unh.edu/pdch_5_22/5UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES April 23, 2015 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS FACILITY SEPTIC TANKS 22 1353 - 1 SECTION 22 1353 – FACILITY SEPTIC TANKS 1.1 SUMMARY A. Section Includes: 1. Septic tanks. 2. Distribution boxes. 3. Pipe and fittings. 4. Absorption systems. B. See Chapter 5, Division 01, Section 017700.1.1.B.1.i Closeout Procedures - Project Record Documents for equipment list requirements for all equipment provided in this section. 1.2 CONCRETE SEPTIC TANKS A. Description:  ASTM C 1227, precast, reinforced-concrete tank and covers; single chamber, single chamber with internal baffle, or two chambers. B. Design:  For A-8 (H10-44), A-12 (HS15-44), or A-16 (HS20-44) traffic loading according to ASTM C 890. C. Manholes:  24-inch- (610-mm-) minimum diameter opening with reinforced-concrete risers to grade and access lid with steel lift rings.  Include manhole in center of each septic tank compartment top. D. Filter Access:  Reinforced-concrete access hole, large enough to remove filter, over filter position. E. Inlet and Outlet Access:  12-inch (305-mm) minimum diameter, reinforced-concrete access lids with steel lift rings.  Include access centered over inlet and outlet. F. Resilient Connectors:  ASTM C 923 (ASTM C 923M), of size required for piping, fitted into inlet and outlet openings. 1.3 POLYETHYLENE SEPTIC TANKS A. Manufacturers:   1. Chem-Tainer Industries. 2. Norwesco, Inc. 3. Plastic-Mart, Inc. 4. Premier Plastics Ltd. 5. Premier Tech Environment. UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES April 23, 2015 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS FACILITY SEPTIC TANKS 22 1353 - 2 B. Description:  Molded, HDPE or PE construction; fabricated for septic tank application; single chamber, single chamber with baffle and at least one access riser and manhole, or two chambers each with an access riser and manhole. C. Manholes:  18-inch- (457-mm-), 20-inch- (508-mm-), or 22-inch- (559-mm-) minimum diameter opening with HDPE or PE access risers to grade and cover. D. Filter Access:  Include access hole, large enough to remove filter, over filter position. E. Resilient Connectors:  ASTM C 923 (ASTM C 923M) or other watertight seal, of size required for piping, fitted into inlet and outlet openings. 1.4 FILTERS A. Manufacturers:   1. Premier Tech Environment. 2. Tuf-Tite Corporation. 3. Zabel Industries International, Ltd.; a Polylok company. B. Description:  Removable, septic-tank-outlet filter that restricts discharge solids to 1/8 inch (3.2 mm). C. Housing:  HDPE or PVC. D. Outlet Size:  NPS 4 (DN 100) or NPS 6 (DN 150). 1.5 CONCRETE DISTRIBUTION BOXES A. Description:  Precast concrete, single-chamber box and cover. B. Design:  Made according to ASTM C 913, and for A-8 (H10-44), A-12 (HS15-44), or A-16 (HS20-44) traffic loading according to ASTM C 890.  Include baffle opposite inlet. C. Manholes:  20-inch- (508-mm-), 22-inch- (559-mm-), or 24-inch- (610-mm-) minimum diameter opening with reinforced-concrete risers to grade and cover with steel lift rings in center of distribution box cover. D. Resilient Connectors:  ASTM C 923 (ASTM C 923M), of size required for piping, fitted into inlet and outlet openings.  Include watertight plugs in outlets not required. 1.6 PE DISTRIBUTION PIPE AND FITTINGS A. Tube and Fittings:  ASTM F 405, perforated corrugated tube with solid-wall fittings. B. Couplings:  PE band, matching tube and fitting dimensions. UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES April 23, 2015 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS FACILITY SEPTIC TANKS 22 1353 - 3 1.7 NONPRESSURE PIPE COUPLINGS A. Description:  Comply with ASTM C 1173, elastomeric, sleeve-type, reducing or transition coupling, for joining underground nonpressure piping.  Include ends of same sizes as piping to be joined, with corrosion-resistant-metal tension band and tightening mechanism on each end. 1. Sleeve Materials for Plastic Pipes:  ASTM F 477, elastomeric seal or ASTM D 5926, PVC. 2. Sleeve Materials for Dissimilar Pipes:  ASTM D 5926, PVC or other material compatible with pipe materials being joined. 1.8 TRENCH OR BED ABSORPTION-SYSTEM MATERIALS A. Filter Material:  ASTM D 448, Size No. 24, 3/4 to 2-1/2 inches (19 to 63 mm), washed, crushed stone or gravel; or broken, hard-burned clay brick. B. Filter Mat:  Geotextile woven or spun filter fabric, in one or more layers, for minimum total unit weight of 3 oz./sq. yd. (101 g/sq. m) or untreated building paper or similar porous material. C. Cover for Distribution Pipe:  Geotextile woven filter fabric, in one or more layers, for minimum total unit weight of 3 oz./sq. yd. (101 g/sq. m). D. Fill Material:  Soil removed from trench. END OF SECTION 22 1353 

221353 - Facility Septic Tanks

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221353 - Facility Septic Tanks

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