Attachment_B.2_Spec_Section_33_36_13.pdf

UTILITY SEPTIC EFFLUENT PRETREATMENT UNIT

Section 33 36 13 - Page 1

Daniel Consultants Inc.

SECTION 33 36 13

UTILITY SEPTIC EFFLUENT PRETREATMENT UNIT (BEST AVAILABLE TECHNOLOGY (BAT)

UNIT)

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Holding tank.

2. Interconnecting piping.

3. Pump

B. Related Sections:

1. Section 22 40 00 - Plumbing Fixtures.

2. Section 31 20 00 - Earthwork.

3. Section 33 31 00 - Sanitary Utility Sewerage Piping: Effluent discharge.

4. Section 33 34 00 – Sanitary Utility Sewerage Force Mains

5. Section 31 23 33-Trenching and Backfilling

1.2 DESCRIPTION

A. The work to be performed under this section includes all material, labor, tools, equipment and services necessary for and incidental to the construction of a BAT unit as shown on the drawings and specified herein.

1.3 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures : Requirements for submittals.

B. Shop Drawings: Submit shop drawings for BAT unit, showing piping materials, size, locations, and inserts. Include details of underground structures, connections, pump back line, air line connections and cleanouts. Show interface and spatial relationship between piping and proximate structures

C. Product Data: Submit data on BAT unit, tank, pump back line, air line connections, piping, and accessories.

D. Manufacturer's Installation Instructions: Submit special procedures for BAT unit.

E. Wiring diagrams detailing wiring for power, signal, alarm and control systems differentiating between manufacturer-installed wiring and field-installed wiring.

F. Maintenance data for BAT system specified.

G. Final Certification: Upon completion of the project and before final acceptance, the Contractor shall deliver to the Engineer a statement signed by the principal officer of the contracting firm stating that the holding tank, pump, pump back line, air line connections and related piping installation is satisfactory and in complete accordance with the contract plans, specifications, and the manufacturer's prescribed procedures and has been found to be tight and in compliance with all State and local codes covering such installations.

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1.4 CLOSEOUT SUBMITTALS

A. Record Drawings: At project closeout, submit record drawings of installed BAT systems and pump, show exact location and inverts of holding tank, and underground structures.

B. Maintenance Data: Submit maintenance data and parts lists for BAT system’s materials and products. Include this data, product data, shop drawings, and record drawings in maintenance manual.

1.5 QUALITY ASSURANCE

A. Manufacturer’s Qualifications: Firms regularly engaged in manufacture of BAT system’s products of types, materials, and sizes required, whose products have been in satisfactory use in similar service for not less than 5 years.

B. Installer’s Qualifications: Firm with at least 3 years of successful installation experience on projects with BAT systems work similar to that required for project.

C. Plumbing Code Compliance: Comply with applicable portions of National Standard Plumbing Code pertaining to selection and installation of septic system’s materials and products.

D. Health Department Compliance: Comply with applicable portions of local Health Department regulations pertaining to BAT systems and Code of Maryland Regulations (COMAR) 26.04.02

E. UL 778 "Standard for Motor Operated Water Pumps" for construction requirements. Include UL labeling.

F. NEMA MG 1 "Standard for Motors and Generators" for electric motors. Include NEMA listing and labeling.

G. NFPA 70 "National Electrical Code" for electrical components and installation.

H. Regulations, Code Requirements, and Permits

1. All work shall be accomplished in accordance with the laws, ordinances, and codes of the State of Maryland and any other local, county, or state governing body having jurisdiction.

I. Single Source Responsibility: Obtain same type of BAT unit from a single manufacturer with pumps, components, and accessories from a single source. Include responsibility and accountability to answer and resolve problems regarding compatibility, installation, performance, and acceptance of pumps.

J. Design Criteria: Drawings indicate sizes, profiles, connections, and dimensional requirements of BAT unit are based on specific manufacturer types and models indicated. BAT units having equal performance characteristics by other manufacturers may be considered provided that deviations in dimensions and profiles do not change the design concept or intended performance as judged by the Engineer. The burden of proof for equality of BAT unit is on the proposer.

1.6 D. COORDINATION

A. Section 01 30 00 - Administrative Requirements for coordination.

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B. Coordinate the Work with connections to building sanitary sewer piping outlet.

PART 2 PRODUCTS

2.1 BAT Unit

A. Manufacturers:

1. SeptiTech M400 with Denite Mix Loop and plastic media in the 2nd chamber of septic tank. Contact Maryland Concrete at 443-491-3598.

2. Substitutions:Section 01 60 00 - Product Requirements.

B. Product Description:

1. Holding Tank: As recommended by the manufacture. Should be vehicle rated and able to support 6 feet of cover

2. Denite Mix Loop, Sludge Return Loop, and air line connections: As recommended by the manufacture

3. Recirculation, pump-back, denite mix, and discharge pumps as recommended by the manufacture

4. Media in treatment processor and primary septic tank as recommended by the manufacture.

2.2 BEDDING MATERIALS

A. Aggregate Bedding Material: As shown on plans.

PART 3 EXECUTION

3.1 EXAMINATION

A. Section 01 30 00 - Administrative Requirements : Verification of existing conditions before starting work.

B. Verify building sanitary sewer connection, size, location and invert are as indicated on Drawings.

3.2 PREPARATION

A. Ream pipe ends and remove burrs.

B. Remove scale and dirt from components before assembly.

C. Establish invert elevations for each component in system.

D. Hand trim excavation to suit holding tank, distribution box and field tile arrangement. Remove stones, roots or other obstructions.

3.3 BAT UNIT

A. General: Install as indicated, and in accordance with manufacturer’s instructions

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B. Excavate in accordance with Section 31 23 16 for work of this Section. Hand trim excavation for accurate placement of tank to elevations indicated.

C. Place bedding material level in one continuous layer not exceeding 6 inches compacted depth, compact to 95 percent.

D. Install holding tank and related components on bedding

E. Backfill around sides of tank after all the required piping, air line and electrical connections have been made, tamped in place and compacted to 95 percent.

3.4 CONNECTING PIPING

A. Install as per Manufactor’s recommendations. Connect between septic tank piping and holding tank. Connect the pressure outlet pipe to the the outlet piping. Install the pump back line using 1 ich 160/200 P.E. pressure pipe of 1” Sch 40 PVC pipe between the 1-inch fitting provided on the inlet end of the processor and the 1-inch fitting in the pipe entering the septic tank. Connect the 2-inch air inlet fo fittings on the processor using 2” PVC and teminate in a location above ground approved by the Engineer. Keep the air inlet at least 36” above ground.

The air line should slope back to the processor so that condensation can drain.

3.5 FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements,01 70 00 - Execution and Closeout Requirements :

Field inspecting, testing, adjusting, and balancing.

B. Tests: Fill holding tank with water and let stand overnight. If water level recedes, locate and repair leaks, and retest

C. When tests indicate Work does not meet specified requirements, remove Work, replace and retest.

3.6 PROTECTION OF FINISHED WORK

A. Section 01 70 00 - Execution and Closeout Requirements. Protecting finished work.

B. Do not permit [vehicular] traffic over drainage field.

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PLAN VIEW

SECTION VIEW

WALL DETAIL

SEAL DETAIL

(NTS)

MASTIC

SEAL

N u m b e r

REVISION SIGNOFF

Date Initial Maryland Concrete Inc.

THIS DOCUMENT MAY NOT BE DISTRIBUTED, MODIFIED, ALTERED, OR REPRODUCED IN WHOLE OR IN PART WITHOUT THE PRIOR WRITTEN PERMISSION OF MARYLAND CONCRETE SEPTIC TANK INC.

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N um be r

REVISION SIGNOFF

Date Initial Maryland Concrete Inc.

THIS DOCUMENT MAY NOT BE DISTRIBUTED, MODIFIED, ALTERED, OR REPRODUCED IN WHOLE OR IN PART WITHOUT THE PRIOR WRITTEN PERMISSION OF MARYLAND CONCRETE SEPTIC TANK INC.

· GENERAL NOTES

· SeptiTech M400 with 1000 gallon septic tank is acceptable for house sizes from 3-4 bedrooms. For 5 bedroom houses a 1500 gallon septic tank is required.

· Tank(s) shall not be installed at a depth greater than 24-inches. Tank installations requiring a depth greater than 24-inches from top of tank to finished grade need prior approval. Additional cost may apply.

· Water Testing: If necessary, contractor is responsible for water testing the concrete tank(s) once the tank(s) installation has been completed and allowed to set overnight.

Water testing shall be conducted in accordance with ASTM C1227.9.2.

· Exterior Piping: Contractor is responsible for supplying and installing all exterior piping per SeptiTech installation drawings.

· Air Intake Piping: Air intake snorkel shall be installed within 100 feet of the processor tank. Air intake piping shall be installed such that a positive pitch is provided back towards the processor tank.

· Electrical: All electrical work is the responsibility of the contractor's licensed electrician and is not provided by SeptiTech. System

· SeptiTech processors can also be built to 3-phase power requirements. If 3-phase is required, please specify type of 3-phase power (208v / 230v).

· Float elevation shown on plans are approximate. The SeptiTech Processor high and low water elevations are a function of the tank working volume and such final elevation of floats will be determined by SeptiTech during Start-Up Services.

SEPTIC TANK

1 1

" PVC

VITON

ADJUST

SAFE BLOCK

BALL VALVE

TRUE UNION

SECTION VIEW

GROUND LEVEL

HYDRAULIC LINE

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